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WO2019172236A1 - Relay device, base station, system, method, and recording medium on which program is recorded - Google Patents

Relay device, base station, system, method, and recording medium on which program is recorded Download PDF

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Publication number
WO2019172236A1
WO2019172236A1 PCT/JP2019/008594 JP2019008594W WO2019172236A1 WO 2019172236 A1 WO2019172236 A1 WO 2019172236A1 JP 2019008594 W JP2019008594 W JP 2019008594W WO 2019172236 A1 WO2019172236 A1 WO 2019172236A1
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WO
WIPO (PCT)
Prior art keywords
base station
message
overload
identifier
operation information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/JP2019/008594
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French (fr)
Japanese (ja)
Inventor
英城 小塚
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NEC Corp
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NEC Corp
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Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP2020505043A priority Critical patent/JP6958720B2/en
Publication of WO2019172236A1 publication Critical patent/WO2019172236A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device

Definitions

  • the present invention relates to a relay device, a base station, a system, a method, and a recording medium on which a program is recorded, and particularly to a relay device, base station, system, method, and a recording medium on which a congestion control is performed.
  • An Overload Start message is defined in 3GPP (Third Generation Partnership Project).
  • the Overload Start message is a message indicating that the MME (Mobility Management Entity) has entered a congestion state, and is transmitted from the MME that has entered the congestion state.
  • FIG. 1 is a diagram illustrating a configuration example of a general mobile communication system.
  • a HeNB-GW Home eNodeB Gateway
  • the HeNB-GW receives an Overload Start message from the MME that has become congested. To do.
  • the HeNB-GW transmits the received Overload Start message to each connected HeNB (Home eNodeB).
  • Each HeNB performs an operation indicated by an information element included in the received Overload Start message, specifically, an operation for restricting traffic to the MME. As a result, the traffic from each HeNB to the MME is reduced, and the congestion state of the MME is eliminated.
  • the Overload Start message includes information elements such as Overload Response and GUMMEI as shown in the table of FIG. GUMMEI is an identifier indicating the MME.
  • the Overload Response is an information element indicating the operation of the HeNB that restricts traffic to the MME.
  • the Overload Response may be an information element indicating the operation of the HeNB rejecting establishment of the RRC connection as shown in FIG. This is because rejecting the establishment of the RRC connection means rejecting the traffic related to the establishment of the RRC connection and restricting the traffic to the MME.
  • RRC is an abbreviation for Radio Resource Control.
  • the above-mentioned HeNB-GW may include a plurality of GUMMEIs in the Overload Start message. This is because the Overload Start message can include a plurality of GUMMEIs in the range of 1... ⁇ MaxnofMMECs> as shown in FIG. maxnofMMECs has a value of 256.
  • the HeNB-GW can transmit an Overload Start message including a plurality of GUMMEIs to the HeNB.
  • the HeNB receives an Overload Start message including a plurality of GUMMEIs from the HeNB-GW.
  • HeNB performs the operation
  • the HeNB performs an operation of limiting traffic by performing the operation indicated in the Overload Response included in the received Overload Start message.
  • traffic to a plurality of MMEs is reduced, and the congestion state of each MME is eliminated.
  • the HeNB-GW can perform congestion control for a plurality of MMEs by transmitting one Overload Start message including a plurality of GUMMEIs.
  • FIG. 4 is a diagram illustrating a configuration example of a system disclosed in Patent Document 1.
  • the system of Patent Literature 1 includes an MME 90, access points 91, 92, and 93, and a concentrator component 94.
  • Access points 91, 92, and 93 are base stations.
  • the concentrator component 94 connects to the MME 90 and the access points 91, 92, 93.
  • the concentrator component 94 stores a routing table in which an identifier (for example, GUMMEI) of the MME 90 is associated with identifiers indicating the access points 91, 92, and 93.
  • an identifier for example, GUMMEI
  • the concentrator component 94 determines the identifier of the access point 91, 92, 93 related to the received packet based on the identifier of the MME 90 included in the received packet and the routing table. get.
  • the concentrator component 94 transmits a packet to the access points 91, 92, 93 having the acquired identifier.
  • the concentrator component 94 of Patent Document 1 can relay packets from the MME 90 to the access points 91, 92, and 93.
  • the concentrator component 94 Since the concentrator component 94 is connected between the MME and the base station, it corresponds to a general HeNB-GW, and may transmit an Overload Start message to the base station according to the 3GPP rules. In that case, the concentrator component 94 can perform congestion control for the MME, as in a general HeNB-GW.
  • a general HeNB-GW including the concentrator component 94 of Patent Document 1 has a problem that it cannot perform congestion control different for each MME with one Overload Start message.
  • An object of the present invention is to provide a relay device, a base station, a system, a method, and a recording medium on which a program is recorded that solves the above problems.
  • a relay apparatus is a relay apparatus connected to a base station apparatus and a plurality of control apparatuses, and includes an identifier indicating the control apparatus and operation information indicating an operation of the base station apparatus.
  • Control including a set of the identifier and the operation information included in each of the received predetermined messages in one message when the predetermined message including the message is received from a plurality of the control devices.
  • the operation information is information indicating an operation of the base station device that restricts communication with the control device.
  • a base station apparatus is a base station apparatus connected to a plurality of control apparatuses via a relay apparatus, wherein the control apparatus is controlled from one message received from the relay apparatus.
  • an extraction unit that extracts a plurality of sets of operation information indicating the identifier and the operation of the base station device, and the operation of the set
  • Operating means for performing an operation indicated by the information, and the operation is an operation for restricting the communication.
  • a system of the present invention is a system in which a relay device is connected to a base station device and a plurality of control devices, and the relay device is connected to the base station device and a plurality of control devices. Included in each of the received predetermined messages when a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices. Control means for including the set of the identifier and the operation information included in one message and transmitting the message to the base station apparatus, and the operation information indicates an operation of the base station apparatus that restricts communication with the control apparatus.
  • the base station device is a base station device connected to a plurality of control devices via a relay device, and the control device is transmitted from one message received from the relay device.
  • Extracting means for extracting a plurality of sets of identifiers and operation information indicating the operation of the base station apparatus, and communication with the control apparatus indicated by the identifiers of the sets for each of the extracted sets.
  • Operation means for performing an operation indicated by the operation information, and the operation is an operation for restricting the communication.
  • a method of the present invention is a method of an apparatus connected to a base station apparatus and a plurality of control apparatuses, and an identifier indicating the control apparatus and operation information indicating an operation of the base station apparatus And a set of the identifier and the operation information included in each of the received predetermined messages is included in one message and transmitted to the base station apparatus,
  • the operation information is information indicating an operation of the base station device that restricts communication with the control device.
  • a recording medium recording the program of the present invention provides an identifier indicating the control device and an operation of the base station device to a processor of the device connected to the base station device and a plurality of control devices.
  • a predetermined message including operation information is received from a plurality of the control devices, a set of the identifier and the operation information included in each of the received predetermined messages is included in one message to the base station device.
  • the operation information is information indicating the operation of the base station device that restricts communication with the control device.
  • the HeNB-GW can perform different congestion control for each MME with a single Overload Start message.
  • FIG. 3 is a diagram (part 1) for explaining an Overload Start message defined in 3GPP (Third Generation Partnership Project).
  • FIG. 6 is a diagram (part 2) for explaining an Overload Start message defined in 3GPP.
  • It is a figure which shows the structural example of the system of patent document 1. It is a figure for demonstrating the Overload Start message which the system in the 1st Embodiment of this invention uses. It is a figure which shows the structural example of the system in the 1st Embodiment of this invention.
  • HeNB-GW Home eNodeB Gateway
  • FIG. 5 is a diagram for explaining the Overload Start message used by the system according to the first embodiment of this invention.
  • the HeNB-GW provided in the system of the present embodiment uses the Overload Start message shown in FIG.
  • the Overload Start message in FIG. 5 is a message in which an Overload Response is provided for each GUMMEI.
  • the HeNB-GW provided in the system of the present embodiment sets different Overload Response for each GUMMEI in one Overload Start message in FIG. 5 and transmits it to the HeNB.
  • the HeNB-GW provided in the system of the present embodiment can perform different congestion control for each GUMMEI (that is, for each MME) with one Overload Start message.
  • FIG. 6 is a diagram illustrating a configuration example of a system according to the first embodiment of the present invention.
  • the system of the present embodiment includes a HeNB-GW (Home eNodeB Gateway) 1 and HeNBs (Home eNodeB) 2, 3. 4 and MMEs 5 and 6.
  • MME is an abbreviation for Mobility Management Entity.
  • the HeNB-GW1 is connected to the HeNBs 2, 3, 4 and the MMEs 5 and 6 via a wired line.
  • FIG. 7 is a diagram illustrating a configuration example of the HeNB-GW 1 included in the system according to the first embodiment of the present invention.
  • the HeNB-GW 1 includes a call control unit 10_1, a call control unit 10_2, a call control unit 10_3, and a data management unit 11.
  • the call control unit 10_1, the call control unit 10_2, and the call control unit 10_3 are hereinafter collectively referred to as “call control units 10_1 to 10_3”.
  • the call control units 10_1 to 10_3 are each connected to the data management unit 11 via a wired line.
  • the data management unit 11 is a general memory.
  • the call control unit 10_1 is connected to the MME 5 via a wired line.
  • the call control unit 10_2 is connected to the MME 6 via a wired line.
  • the call control unit 10_3 is connected to the HeNBs 2, 3, and 4 through a wired line.
  • the call control unit 10_3 is connected to the call control unit 10_1 and the call control unit 10_2 via a wired line.
  • FIG. 8 is a diagram illustrating a configuration example of the HeNB 2 provided in the system according to the first embodiment of the present invention.
  • HeNB2 is provided with the extraction part 12 and the operation
  • the extraction unit 12 of the HeNB2 is connected to the call control unit 10_3 of the HeNB-GW1 via a wired line.
  • the operation unit 13 of the HeNB 2 is connected to the extraction unit 12 via a wired line.
  • the HeNB-GW1 of this embodiment uses a new Overload Start message shown in FIG.
  • the Overload Start message shown in FIG. 5 is a message in which GUMMEI and Overload Response are defined in the GUMMEI List.
  • the Overload Start message shown in FIG. 5 is a message provided with an Overload Response for each GUMMEI.
  • Each of the call control units 10_1 to 10_3 of the HeNB-GW 1 includes an arithmetic processing unit such as a CPU (Central Processing Unit) and a general memory such as a RAM (Random Access Memory). , Can be realized.
  • the data management unit 11 of the HeNB-GW 1 can be realized using a general memory such as a RAM.
  • the extraction unit 12 and the operation unit 13 of the HeNBs 2, 3, and 4 can be realized by using an arithmetic processing device such as a CPU (Central Processing Unit) and a general memory such as a RAM (Random Access Memory). .
  • arithmetic processing device such as a CPU (Central Processing Unit) and a general memory such as a RAM (Random Access Memory).
  • the call control unit 10_1 receives an Overload Start message from the MME 5 in a congested state.
  • the call control unit 10_2 receives an Overload Start message from the MME 6 that has become congested.
  • the Overload Start message received by the call control unit 10_1 and the call control unit 10_2 is a general Overload Start message shown in FIG.
  • the Overload Start message includes one each of GUMMEI indicating MME and Overload Response.
  • the call control unit 10_1 and the call control unit 10_2 extract GUMMEI and Overload Response from the received Overload Start message.
  • the call control unit 10_1 and the call control unit 10_2 temporarily store the extracted GUMMEI and Overload Response in the data management unit 11 (memory). However, since the call control unit 10_1 and the call control unit 10_2 store the extracted GMUMEI and Overload Action as a set of data, the data after assigning a number indicating the set (hereinafter referred to as “set number”) to the data Store in the management unit 11 (memory).
  • the above-described combination number is a number indicating that the extracted GUMMEI and Overload Action is a set of data, and is a number common to the extracted GUMMEI and Overload Action.
  • the set number may be time information when storing the extracted GUMMEI and Overload Action, for example.
  • the call control unit 10_1 and the call control unit 10_2 have a clock function, and assign time information output by the clock function to GUMMEI and Overload Action.
  • the call control unit 10_3 has a timekeeping function (hereinafter referred to as “timer”).
  • the call control unit 10_3 starts a timer and starts measuring time from 0 seconds. This is to wait for the call control units 10_1 and 10_2 to store the GUMME and Overload Response of the Overload Start message in the data management unit 11 (memory).
  • the above timer may be a general hardware timer.
  • the hardware timer can measure time with high accuracy in microseconds.
  • the call control unit 10_3 stops the timer when the time measured by the timer reaches a predetermined time (for example, 1 millisecond).
  • the predetermined time described above is set in advance in the call control unit 10_3 by the system administrator of the present embodiment.
  • the system administrator of the present embodiment sets in advance in the call control unit 10_3 a predetermined time that is greater than the time difference between the two Overload Start messages that are considered to be received from the MMEs 5 and 6 almost simultaneously.
  • the call control unit 10_3 reads all information stored in the data management unit 11 (memory).
  • the call control unit 10_3 reads all the GMUMEI to which the set number is assigned and the Overload Response to which the set number is assigned.
  • call control unit 10_3 does not start the timer when an operation start signal is input during timer startup.
  • the call control unit 10_3 continues to measure time until a predetermined time is reached.
  • the Overload Start message shown in FIG. 5 is as described in “(4) New message used by HeNB-GW1”.
  • the call control unit 10_3 sets GUMMEI and Overload Response to which the same set number is assigned, in the GUMMEI List of the messages shown in FIG. 5 in the order of GUMMEI and Overload Response.
  • the call control unit 10_3 creates an Overload Start message in which an Overload Response is set for each GUMMEI.
  • (6-3-1) Function of Extraction Unit 12 (Overload Start Message Transfer Function)
  • the extraction unit 12 extracts a GUMMEI List from the received Overload Start message.
  • the extraction unit 12 outputs the extracted GUMME List to the operation unit 13 as an electric signal (hereinafter referred to as “electric signal A”).
  • the electric signal A includes a pulse signal indicating that the GMUMEI List is included.
  • (6-3-2) Function of extraction unit 12 (traffic transfer function)
  • the extraction unit 12 When receiving the traffic other than the Overload Start message from the HeNB-GW 1, the extraction unit 12 outputs the traffic to the operation unit 13 as an electrical signal (hereinafter referred to as “electric signal B”).
  • the electric signal B includes a pulse signal indicating that traffic is included.
  • the extraction unit 12 When receiving the electrical signal from the operation unit 13, the extraction unit 12 extracts traffic from the received electrical signal and transmits the extracted traffic to the HeNB-GW1.
  • the operation unit 13 extracts the GUMMEI List from the input electric signal A.
  • the GUMMEI List includes a set of GUMMEI and Overload Response.
  • the operation unit 13 extracts a set of GUMEI and Overload Response in order from the top of the extracted GUMME List. Each time the operation unit 13 extracts a set of GUMMEI and Overload Response, the operation unit 13 performs the operation indicated by the Overload Response of the extracted set for the traffic of the MME indicated by the extracted GUMMEI.
  • the operation unit 13 has extracted a set of GUMME # 1 and Overload Response # 1 indicating MME5. In this case, the operation unit 13 performs the operation indicated by the Overload Response # 1 for the traffic of the MME 5 indicated by the extracted set of GUMME # 1. Similarly, when the combination of GUMME # 2 and Overload Response # 2 indicating MME6 is extracted, the operation unit 13 performs the operation indicated by Overload Response # 2 for the traffic of MME6 indicated by the extracted GUMMEI # 2.
  • the extraction unit 12 of the HeNB 2 performs an operation that restricts traffic to the MMEs 5 and 6.
  • operation unit 13 (6-3-4) Function of operation unit 13 (general base station function) Furthermore, the operation units 13 of the HeNBs 2, 3, and 4 have a general base station function. Specifically, the operation units 13 of the HeNBs 2, 3, and 4 are connected to a general terminal (not shown) via a wireless line. The operation units 13 of the HeNBs 2, 3, and 4 receive traffic from connected terminals.
  • FIG. 9 is a diagram for explaining the operation of the system according to the first embodiment of the present invention.
  • the MME 5 transmits an Overload Start message to the HeNB-GW 1 as shown in FIG. 9 (S1).
  • the Overload Start message transmitted from the MME 5 includes a GUMEI indicating the MME 5 (hereinafter referred to as “GUMMEI # 1”) and an Overload Response (hereinafter referred to as “Overload Response # 1”).
  • the Overload Response # 1 is an Overload Response indicating rejection of establishment of an RRC (Radio Resource Control) connection.
  • the MME 6 also transmits an Overload Start message to the HeNB-GW 1 as shown in FIG. 9 (S2).
  • the Overload Start message transmitted from the MME 6 includes a GUMEI indicating the MME 6 (hereinafter referred to as “GUMMEI # 2”) and an Overload Response (hereinafter referred to as “Overload Response # 2”).
  • GUMMEI # 2 GUMEI indicating the MME 6
  • Overload Response # 2 is an Overload Response indicating that only a high priority session is allowed.
  • the call control unit 10_1 When receiving the Overload Start message from the MME 5, the call control unit 10_1 extracts GUMEI # 1 and Overload Response # 1 from the received Overload Start message as shown in FIG. 9 (S3).
  • the call control unit 10_1 of the HeNB-GW1 stores the extracted GMUMEI # 1 and Overload Response # 1 in the data management unit 11 (memory) (S4).
  • the call control unit 10_1 stores the extracted GUMME # 1 and Overload Response # 1 as one set of data. Therefore, the data management unit 11 assigns a number (that is, a set number) indicating the set to them. Store in (memory).
  • the pair number is a number indicating that the extracted GUMMEI and Overload Action are one set of data as described in “(6-1-3) Storage Function” above, and is common to the extracted GUMMEI and Overload Action. It is a number to do.
  • the group number may be time information when S4 is performed. In that case, the call control unit 10_1 has a clock function, uses the time information output by the clock function as a set number, and assigns the set number to the extracted GUMMEI and Overload Action.
  • the set number assigned in S4 is referred to as “set number # 1”.
  • the GUMEI # 1 assigned with the set number # 1 and the Overload Response # 1 assigned with the set number # 1 are stored in the data management unit 11 (memory).
  • the call control unit 10_1 of the HeNB-GW1 outputs an electrical signal indicating the operation start (hereinafter referred to as “operation start signal”) to the call control unit 10_3 (S5).
  • the call control unit 10_2 of the HeNB-GW 1 When receiving the Overload Start message from the MME 6, the call control unit 10_2 of the HeNB-GW 1 extracts GUMME # 2 and Overload Response # 2 from the received Overload Start message (S6).
  • the call control unit 10_2 of the HeNB-GW1 stores the extracted GMUMEI # 2 and Overload Response # 2 in the data management unit 11 (memory) (S7).
  • set number # 2 a set number (hereinafter referred to as “set number # 2”) to each of the extracted GMUMEI # 2 and Overload Response # 2, and then the data management unit 11 ( Memory).
  • the GUMEI # 2 assigned with the set number # 2 and the Overload Response # 2 assigned with the set number # 2 are stored in the data management unit 11 (memory).
  • the call control unit 10_2 of the HeNB-GW1 outputs an electric signal indicating the start of operation (that is, an operation start signal) to the call control unit 10_3 (S8).
  • the call control unit 10_3 of the HeNB-GW1 activates a time measuring function (hereinafter referred to as “timer”) provided therein and starts measuring time from 0 seconds (S9).
  • timer a time measuring function
  • the above timer may be a general hardware timer.
  • a general hardware timer can measure time with high accuracy in units of microseconds.
  • the call control unit 10_3 is in the process of starting the timer, and does not perform S9 described above. That is, the call control unit 10_3 does not restart the timer even if an operation start signal is input from the call control unit 10_2 during time measurement. The call control unit 10_3 continues to measure time.
  • the call control unit 10_3 stops the timer when the time measured by the timer reaches a predetermined time (for example, 1 millisecond).
  • the predetermined time described above is set in advance in the call control unit 10_3 by the system administrator of the present embodiment.
  • the system administrator of the present embodiment sets in advance in the call control unit 10_3 a predetermined time that is greater than the time difference between the two Overload Start messages that are considered to be received from the MMEs 5 and 6 almost simultaneously.
  • the call control unit 10_3 of the HeNB-GW1 reads all the information stored in the data management unit 11 (memory) as shown in FIG. 9 (S10).
  • the call control unit 10_3 reads GUMME # 1 assigned with the set number # 1 and Overload Response # 1 assigned with the set number # 1. Furthermore, the call control unit 10_3 reads GUMMEI # 2 to which the set number # 2 is assigned and Overload Response # 2 to which the set number # 2 is assigned.
  • the call control unit 10_3 sets GUMMEI and Overload Response to which the same set number is assigned in the read out information in the Overload Start message shown in FIG. 5 (S11).
  • the call control unit 10_3 sets GUMEI # 1 and Overload Response # 1 to which the same set number # 1 is assigned in the GUMME List of the Overload Start message shown in FIG.
  • the call control unit 10_3 sets GUMEI # 2 and Overload Response # 2 to which the same set number # 2 is assigned in the GUMME List of the Overload Start message shown in FIG.
  • the call control unit 10_3 creates an Overload Start message in which an Overload Response is set for each GUMMEI.
  • the call control unit 10_3 transmits the Overload Start message created in S11 described above to the HeNBs 2, 3, and 4 (S12).
  • the extraction unit 12 of the HeNB 2 receives the Overload Start message from the HeNB-GW 1 by the process of S12 described above.
  • the extraction unit 12 of the HeNB 2 extracts a GUMEI List from the received Overload Start message as shown in FIG. 9 (S 13).
  • the extraction unit 12 outputs the extracted GUMMEI List to the operation unit 13 as an electrical signal.
  • the operation unit 13 extracts the GUMMEI List from the input electric signal.
  • the GUMMEI List includes a set of GUMME # 1 and Overload Response # 1, and a set of GUMMEI # 2 and Overload Response # 2 in order from the top.
  • the operation unit 13 of the HeNB 2 restricts traffic to the MMEs 5 and 6 for each set included in the extracted GMUMEI List based on the GMUMEI and Overload Response of the set (S14).
  • the operation unit 13 of the HeNB 2 extracts a set of GMUMEI and Overload Response in order from the top of the extracted GMUMEI List. Each time the operation unit 13 extracts a set of GUMMEI and Overload Response, the operation unit 13 performs the operation indicated by the Overload Response of the extracted set for the traffic of the MME indicated by the extracted GUMMEI.
  • the operation unit 13 of the HeNB2 extracts the set of GUMMEI # 1 and Overload Response # 1
  • the operation of Overload Response # 1 performs the operation indicated by Overload Response # 1 for the traffic of MME5 indicated by the extracted GUMEI # 1.
  • the operation unit 13 of HeNB2 extracts a set of GUMMEI # 2 and Overload Response # 2
  • the operation of Overload Response # 2 performs the operation indicated by Overload Response # 2 for the traffic of MME6 indicated by the extracted set of GUMMEI # 2.
  • Overload Response # 1 is information indicating rejection of establishment of the RRC connection
  • the operation unit 13 of the HeNB 2 performs an operation of rejecting establishment of the RRC connection for the traffic of the MME 5. Specifically, the operation unit 13 of the HeNB 2 performs an operation of rejecting traffic related to RRC connection establishment among the traffic of the MME 5.
  • the operation unit 13 performs an operation that accepts only the traffic related to the high priority session for the MME6 traffic. .
  • Each operation described above is an operation that restricts traffic to the MMEs 5 and 6. For this reason, the operation unit 13 limits the traffic to the MME for each of the MMEs 5 and 6 in the process of S14 described above. As a result, the traffic to the MMEs 5 and 6 is reduced, and the congestion state of the MMEs 5 and 6 is eliminated.
  • the “rejecting operation” described above means an operation of rejecting, that is, an operation of not receiving.
  • the above-mentioned “operation not receiving” may be an operation of discarding.
  • the HeNB-GW 1 transmits one Overload Start message including an Overload Response for each GUMMEI to the HeNB 2 by the processes of S3 to S12.
  • the HeNB-GW 1 can cause the HeNB 2 to perform different operations for each of the MMEs 5 and 6, and can eliminate the congestion state of the MMEs 5 and 6. That is, the HeNB-GW 1 can perform different congestion control for each MME with a single Overload Start message.
  • the system of the present embodiment may perform the operations described in “(2) Variation operation” and “(3) Variation operation” below.
  • the system of the present embodiment may perform the operations described in “(4) Other configuration examples” below.
  • FIG. 10 is a diagram for explaining the operation of the system (operation for releasing the operation for restricting traffic) in the first exemplary embodiment of the present invention.
  • the Overload Stop message is a message indicating that the congestion state has been resolved.
  • the Overload Stop message includes GUMMEI indicating MME.
  • the MME 5 transmits an Overload Stop message to the HeNB-GW 1 as shown in FIG. 10 (S20).
  • the Overload Stop message includes GUMME # 1 indicating MME5.
  • the call control unit 10_1 of the HeNB-GW1 extracts GUMME # 1 from the received Overload Stop message (S21).
  • the call control unit 10_1 deletes the extracted information related to GUMMEI # 1 from the data management unit 11 (memory) (S22).
  • the call control unit 10_1 includes the GUMME # 1 to which the set number # 1 including the extracted GUMMEI # 1 is assigned, and the Overload Response # 1 to which the set number # 1 is assigned in the same manner as the GUMMEI # 1. Are deleted from the data management unit 11 (memory).
  • the call control unit 10_1 outputs the received Overload Stop message to the call control unit 10_3 as an electric signal (hereinafter, referred to as “electric signal C”) (S23).
  • the electric signal C is an electric signal including a pulse signal indicating an Overload Stop message.
  • the call control unit 10_3 of the HeNB-GW 1 extracts an Overload Stop message from the received electrical signal C.
  • the call control unit 10_3 of the HeNB-GW1 transmits the extracted Overload Stop message to the HeNBs 2, 3, and 4 as illustrated in FIG. 10 (S24).
  • the HeNBs 2, 3, and 4 extract GUMME # 1 from the received message (S25).
  • the HeNBs 2, 3, and 4 release the operation for limiting the traffic of the MME 5 indicated by the extracted GUMMEI # 1 (S26).
  • the HeNBs 2, 3, and 4 stop the operation for rejecting the RRC connection establishment (related traffic), which is performed for the traffic of the MME 5 indicated by the extracted GUMMEI # 1.
  • the HeNBs 2, 3, and 4 receive all the traffic of the MME 5. That is, the HeNBs 2, 3, and 4 return to the state before performing S13 and S14.
  • the HeNB-GW 1 can cancel the operation of limiting the traffic of the MME 5 by causing the HeNBs 2, 3, and 4 to perform the above-described processes S25 and S26 by performing the above-described processes S21 to S24.
  • the MME 6 transmits an Overload Stop message to the HeNB-GW 1 as shown in FIG. 10 (S27).
  • the Overload Stop message includes GUMME # 2 indicating MME6.
  • the call control unit 10_2 of the HeNB-GW1 extracts GUMME # 2 from the received Overload Stop message (S28).
  • the call control unit 10_2 deletes the extracted information related to GUMMEI # 2 from the data management unit 11 (memory) (S29).
  • the call control unit 10_2 includes GUMME # 2 to which the set number # 2 including the extracted GUMMEI # 2 is assigned, and Overload Response # 2 to which the set number # 2 is assigned in the same manner as the GUMMEI # 2. Are deleted from the data management unit 11 (memory).
  • the call control unit 10_2 outputs the received Overload Stop message as an electric signal C to the call control unit 10_3 (S30).
  • the call control unit 10_3 of the HeNB-GW 1 extracts an Overload Stop message from the received electrical signal C.
  • the call control unit 10_3 of the HeNB-GW1 transmits the extracted Overload Stop message to the HeNBs 2, 3, and 4 as illustrated in FIG. 10 (S31).
  • the HeNBs 2, 3, and 4 extract GUMME # 2 from the received message (S32).
  • the HeNBs 2, 3, and 4 release the operation of limiting the traffic of the MME 6 indicated by the extracted GUMMEI # 2 (S33).
  • the HeNBs 2, 3, and 4 stop the operations that are not accepted except the traffic related to the high-priority session, which is performed for the traffic of the MME 6 indicated by the extracted GUMMEI # 2.
  • the HeNBs 2, 3, and 4 receive all the traffic of the MME 6. That is, the HeNBs 2, 3, and 4 return to the state before performing S13 and S14.
  • the HeNB-GW 1 can cancel the operation of restricting the traffic of the MME 6 by causing the HeNBs 2, 3, and 4 to perform the above-described processes S32 and S33 by performing the above-described processes S28 to S31.
  • Variation operation operation when the predetermined time is 0
  • a predetermined time for example, 1 millisecond
  • the administrator of the system of the present embodiment may set 0 seconds as the predetermined time.
  • the call control unit 10_3 of the HeNB-GW1 performs the next processing of S10 to S12 without performing the processing of S9 described above.
  • the call control unit 10_3 of the HeNB-GW 1 does not wait for the Overload Response or the like to be stored in the data management unit 11 (memory) by the call control unit 10_1 and the call control unit 10_2. Therefore, when the HeNB-GW1 receives an Overload Start message from the MME 5, the HeNB-GW 1 transmits an Overload Start message including GUMME # 1 and Overload Response # 1. Further, when the HeNB-GW1 receives the Overload Start message from the MME 6, the HeNB-GW 1 transmits an Overload Start message including GUMME # 2 and Overload Response # 2.
  • the call control unit 10_3 of the HeNB-GW1 transmits the Overload Start message twice, but can promptly transmit the GMUMEI and Overload Response notified from the MMEs 5 and 6 to the HeNBs 2, 3, and 4.
  • the HeNB-GW 1 is connected to the three HeNBs 2, 3, and 4 and the two MMEs 5 and 6, but is not limited thereto.
  • the HeNB-GW1 may be connected to one HeNB or may be connected to two HeNBs.
  • the HeNB-GW1 may be connected to four or more HeNBs.
  • the HeNB-GW 1 transmits an Overload Start message to each connected HeNB in S12 described above.
  • the HeNB-GW 1 transmits an Overload Stop message to each connected HeNB in the above-described S24 and S31.
  • the HeNB-GW 1 may be connected to three or more MMEs.
  • the HeNB-GW1 includes a call control unit connected to each MME.
  • Each call control unit is connected to the data management unit 11 (memory).
  • Each call control unit performs the same operation as the call control unit 10_1.
  • the HeNB-GW can perform different congestion control for each MME with one Overload Start message.
  • the HeNB-GW sets an Overload Response to one message for each GUMMEI (each MME) and transmits it to the HeNB, and causes the HeNB to perform an operation to limit traffic for each MME based on the message. is there.
  • FIG. 11 is a diagram illustrating a configuration example of an Overload Start message used by the system according to the second embodiment of the present invention.
  • the HeNB-GW of the system according to the second embodiment uses the Overload Start message illustrated in FIG. 11 and transmits Traffic Load Reduction Indication to the HeNB for each GUMMEI (for each MME).
  • the Traffic Load Reduction Indication is an information element indicating an incoming call restriction rate.
  • the HeNB performs incoming call restriction for each MME using the information element.
  • the HeNB-GW of the system according to the second embodiment can perform congestion control based on incoming call restriction for each MME with a single Overload Start message.
  • FIG. 12 is a diagram illustrating a configuration example of a system according to the second embodiment of the present invention.
  • FIG. 13 is a diagram illustrating a configuration example of the HeNB-GW 21 included in the system according to the second embodiment of the present invention.
  • FIG. 14 is a diagram illustrating a configuration example of the HeNB 22 included in the system according to the second embodiment of the present invention.
  • the system of the second embodiment includes a HeNB-GW 21, HeNBs 22, 23, and 24, and MMEs 25 and 26.
  • the HeNB-GW 21 includes call control units 210_1 to 210_3 instead of the call control units 10_1 to 10_3.
  • the HeNB 22 includes an operation unit 213 instead of the operation unit 13.
  • the HeNB 23 and the HeNB 24 have the same configuration as that of the HeNB 22 and are not shown, but include an operation unit 213 instead of the operation unit 13.
  • the Traffic Load Reduction Indication is an information element indicating an incoming call restriction rate, that is, what percentage of incoming traffic is rejected by the HeNB.
  • a Traffic Load Reduction Indication with a value of 10 indicates that the HeNB rejects 10% of the incoming traffic.
  • Traffic Load Reduction Indication is an information element indicating the percentage of traffic to be rejected. The above-mentioned “reject” means that reception is rejected. “Reject reception” may be to discard the received traffic.
  • the call control unit 210_1 and the call control unit 210_2 extract GUMMEI, Overload Response, and Reduction Indication from the received Overload Start message.
  • (3-2) Storage function (functions of call control units 210_1 and 210_2)
  • the call control unit 210_1 and the call control unit 210_2 store the extracted GUMMEI, Overload Response, and Reduction Indication in the data management unit 11 (memory).
  • the call control unit 210_1 and the call control unit 210_2 assign a set number to each piece of extracted information, and then store it in the data management unit 11 (memory). This is because the extracted information is stored as a set of data.
  • the operation unit 213 of the HeNBs 22, 23, and 24 extracts a set of GUMMEI, Overload Response, and Reduction Indication in order from the top of the extracted GUMMEI List.
  • the operation unit 213 performs incoming call restriction for each extracted set based on the reduction indication of the set. The specific procedure of incoming call restriction will be described in detail in [Description of operation] described later.
  • FIG. 15 is a diagram for explaining the operation of the system according to the second embodiment of the present invention. The operation of the system of this embodiment will be described below using FIG.
  • the MMEs 25 and 26 transmit the Overload Start message including the Traffic Load Reduction Indication.
  • the Traffic Load Reduction Indication (hereinafter referred to as “Reduction Indication”) is an information element indicating what percentage of incoming traffic the HeNB rejects.
  • Reduction Indication # 1 The Reduction Indication included in the Overload Start message transmitted from the MME 25 is hereinafter referred to as “Reduction Indication # 1”.
  • Reduction Indication # 2 the Reduction Indication included in the Overload Start message transmitted from the MME 26 is hereinafter referred to as “Reduction Indication # 2”.
  • the call control unit 210_1 extracts GUMMEI # 1, Overload Response # 1, and Reduction Indication # 1 from the received Overload Start message (S43).
  • the call control unit 210_1 stores the extracted GUMME # 1, Overload Response # 1, and Reduction Indication # 1 in the data management unit 11 (memory) (S44).
  • set number # 1 a set number (hereinafter referred to as “set number # 1”) to the data management unit 11 (memory).
  • the call control unit 210_2 of the HeNB-GW 21 performs the same processing as the call control unit 210_1.
  • the call control unit 210_2 of the HeNB-GW 21 extracts GUMME # 2, Overload Response # 2, and Reduction Indication # 2 from the received Overload Start message (S45).
  • the call control unit 210_2 stores the extracted GUMME # 2, Overload Response # 2, and Reduction Indication # 2 in the data management unit 11 (memory) (S46).
  • the call control unit 210_2 stores the extracted information as a set of data, and therefore assigns a set number (hereinafter referred to as “set number # 2”) to the data management unit 11 (memory).
  • set number # 2 a set number assigned to the data management unit 11 (memory).
  • the information to be read out is a set of GUMME # 1, Overload Response # 1, and Reduction Indication # 1, and a set of GUMME # 2, Overload Response # 2, and Indication # 2.
  • Indication # 2 is Reduction Indication # 2.
  • a set number # 1 is assigned to each of GUMMEI # 1, Overload Response # 1, and Reduction Indication # 1.
  • the set number # 2 is assigned to GUMME # 2, Overload Response # 2, and Reduction Indication # 2, respectively.
  • the call control unit 210_3 sets GUMME, Overload Response, and Reduction Indication to which the same set number is assigned in the Overload Start message shown in FIG. 11 (S48).
  • the call control unit 210_3 sets GUMEI # 1, Overload Response # 1, and Reduction Indication # 1, to which the set number # 1 is assigned, in the GUMEI List of the message shown in FIG. Furthermore, the call control unit 210_3 sets GUMME # 2, which is assigned the set number # 2, Overload Response # 2, and Reduction Indication # 2, in the GUMEI List of the message shown in FIG.
  • the call control unit 210_3 creates one Overload Start message including Overload Response and Reduction Indication for each GUMME by the operation of S48 described above.
  • the call control unit 210_3 transmits the created Overload Start message to the HeNBs 22, 23, and 24 (S12).
  • the HeNB 22 receives the Overload Start message by the process of S12 described above.
  • the HeNB 22 When the HeNB 22 receives the Overload Start message, the HeNB 22 extracts the GUMMEI List from the received Overload Start message (S13).
  • the operation unit 213 of the HeNB 22 sequentially extracts a set of GUMMEI, Overload Response, and Reduction Indication from the head of the GUMMEI List extracted in S13.
  • the operation unit 213 extracts a set of GUMME # 1, Overload Response # 1, and Reduction Indication # 1. Furthermore, the operation unit 213 extracts a set of GUMME # 2, Overload Response # 2, and Reduction Indication # 2.
  • the operation unit 213 performs incoming call restriction on MME traffic indicated by the GUMEI of the group (hereinafter referred to as “corresponding group”) (S49).
  • the operation unit 213 performs incoming call restriction at a rate indicated by the corresponding combination of Reduction Indication.
  • the operation unit 213 performs incoming call restriction for discarding the traffic of the MME 25 indicated by the received GUMME # 1 at the rate indicated by the Reduction Indication # 1. In addition, the operation unit 213 performs incoming call restriction for discarding the traffic of the MME 26 indicated by the received GUMME # 2 at the rate indicated by the Reduction Indication # 2.
  • the operation unit 213 performs incoming call restriction for discarding 10% of the traffic of the traffic of the MME 25 indicated by the received GUMME # 1.
  • the operation unit 213 receives traffic from a terminal (not shown) to be connected, as described above in “(6-3-4) Function of the operation unit 13”.
  • the process of S49 described above may be realized by the following processes (I) to (X).
  • the operation unit 213 is realized by a general application and includes a counter having an initial value of 0. Further, it is assumed that the operation unit 213 realized by a general application can dynamically generate the arrays [1] to [100]. The initial values of the arrays [1] to [100] are 0.
  • the operation unit 213 performs the following processes (I) to (X) in parallel for each extracted set.
  • the operation unit 213 First, the operation unit 213 generates arrays [1] to [100].
  • the operation unit 213 randomly selects an array of values (for example, 10) indicated by the corresponding reduction instruction from the arrays [1] to [100].
  • the operation unit 213 includes the array [1], the array [11], the array [24], the array [40], the array [41], the array [54], the array [76], the array [79], and the array [80]. ], 10 of the array [96] may be selected.
  • the number of the subscript of the array is a number indicating the order of traffic received.
  • the operation unit 213 determines the number of traffics to be received as traffic to be rejected by the processes (I) to (III) described above.
  • the operation unit 213 increments the value of the counter included in the operation unit 213 by one.
  • the process (IV) described above is a process for counting the number of traffic received.
  • the operation unit 213 determines whether or not the value of the array with the incremented counter value as a subscript is the value 1.
  • the process (V) described above is a process for determining whether or not the received traffic is traffic to be rejected (hereinafter referred to as “rejected traffic”).
  • the operation unit 213 extracts the received traffic as an electrical signal. Output to. That is, the operation unit 213 accepts the received traffic to the device.
  • the operation unit 213 determines whether or not the value of the counter is 100. This is to confirm whether 100 traffics have been received or not.
  • the operation unit 213 sets the counter value to the initial value 0 when the counter value is 100 (Yes in the above (VIII)), and waits for reception of the next traffic.
  • the operation unit 213 performs the processes (IV) to (IX) described above again.
  • the HeNB 22 performs different incoming call restrictions for each MME. As a result, the traffic to each MME is reduced and the congestion state of the MME is eliminated. That is, the HeNB-GW 21 can perform congestion control by incoming call restriction for each MME with one Overload Start message.
  • the operation unit 213 may process specific traffic among the MME traffic indicated by GUMMEI. For example, the operation unit 213 may perform the process of S49 on the RRC Connection Request message. (7) Cancellation of incoming call restriction The HeNB-GW 21 and the HeNBs 22, 23, and 24 can release incoming call restrictions as follows.
  • the HeNB-GW 21 when receiving the Overload Stop message, the HeNB-GW 21 also deletes the following information (deletion information) from the data management unit 11 (memory) in the processing of S22 and S29 shown in FIG.
  • the HeNBs 22, 23, and 24 cancel the incoming call restriction that is performed for the traffic of the MME indicated by the GUMMEI extracted in the processes of S26 and S33 described above. As a result, the HeNBs 22, 23, and 24 return to the state before performing the above-described processes of S13 and S49 illustrated in FIG.
  • the HeNB-GW can perform different congestion control for each MME by incoming restriction by using one Overload Start message.
  • the HeNB-GW transmits a message including Traffic Load Reduction Indication for each GUMMEI (for each MME) to the HeNB, and the HeNB performs incoming call restriction for each MME based on the message.
  • the HeNB-GW of the system of the third embodiment transmits an Overload Stop message for each HeNB with a time interval.
  • the HeNB-GW in the system of the third embodiment prevents traffic from flowing to the MME from all the HeNBs that have released the operation of restricting traffic, and sufficiently prevents the MME from becoming congested again. Can do.
  • FIG. 16 is a diagram illustrating a configuration example of a system according to the third embodiment of the present invention.
  • FIG. 17 is a diagram illustrating a configuration example of the HeNB-GW included in the system according to the third embodiment of the present invention.
  • the system of the third embodiment includes a HeNB-GW 31 instead of the HeNB-GW 1 as shown in FIG. As illustrated in FIG. 17, the HeNB-GW 31 includes a call control unit 310_3 instead of the call control unit 10_3.
  • the call control unit 310_3 transmits the received Overload Stop message for each of the HeNBs 2, 3, and 4 with a predetermined time interval.
  • the predetermined time is preset in the call control unit 310_3 by the system administrator of the present embodiment.
  • FIG. 18 is a diagram for explaining the operation of the system according to the third embodiment of the present invention.
  • the call control unit 310_3 of the HeNB-GW 31 transmits the received Overload Stop message to the HeNB 2 (S60).
  • the call control unit 310_3 of the HeNB-GW 31 transmits the received Overload Stop message to the HeNB 3 after a predetermined time has elapsed (S61).
  • the call control unit 310_3 of the HeNB-GW 31 transmits the received Overload Stop message to the HeNB 4 after a predetermined time has elapsed (S62).
  • the call control unit 310_3 of the HeNB-GW 31 transmits an Overload Stop message for each of the HeNBs 2, 3, and 4 with a predetermined time interval.
  • the HeNBs 2, 3, and 4 that have received the Overload Stop message perform the above-described S25 and S26 in order at intervals of time, and cancel the operation that restricts traffic to the MME 5.
  • the HeNB-GW 31 of the system according to the present embodiment prevents the traffic from flowing to the MME 5 from the HeNBs 2, 3, and 4 that have canceled the operation for restricting traffic, and sufficiently prevents the MME 5 from becoming congested again. be able to.
  • the HeNB-GW according to the present embodiment can sufficiently prevent the MME whose congestion state has been eliminated from becoming a congestion state again.
  • the HeNB-GW of the present embodiment transmits an Overload Stop message for each of the HeNBs 2, 3, and 4 with a predetermined time interval. Thereby, the HeNB-GW of the present embodiment can prevent traffic from flowing from each HeNB to the MME at once, and can sufficiently prevent the MME from becoming congested again.
  • FIG. 19 is a diagram illustrating a configuration example of a system according to the fourth embodiment of the present invention. The configuration and operation of the system according to the fourth embodiment will be described below.
  • System configuration of the fourth embodiment As shown in FIG. 19, the system of the fourth embodiment includes a relay device 100 connected to a base station device 101 and a plurality of control devices 102 and 103. System.
  • the relay device 100 includes a control unit 110.
  • Base station apparatus 101 includes an extraction unit 111 and an operation unit 112.
  • the control unit 110 of the relay device 100 is connected to the extraction unit 111 of the base station device 101 and a plurality of control devices 102 and 103.
  • the extraction unit 111 of the base station apparatus 101 is connected to the operation unit 112.
  • the relay device 100 may be a HeNB-GW (Home eNodeB Gateway).
  • the control apparatuses 102 and 103 may be, for example, MME (Mobility Management Entity), and the base station apparatus 101 may be HeNB (Home eNodeB).
  • MME Mobility Management Entity
  • HeNB Home eNodeB
  • the control unit 110 receives a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device 101 from the plurality of control devices 102 and 103. .
  • the control unit 110 includes a set of an identifier and operation information included in each received predetermined message in one message and transmits the message to the base station apparatus 101.
  • the above-described operation information is information indicating the operation of the base station device 101 that restricts communication with the control device.
  • the extraction unit 111 of the base station apparatus 101 extracts a plurality of sets of identifiers indicating the control apparatus and operation information indicating the operation of the base station apparatus 101 from one message received from the relay apparatus 100. To do.
  • the operation unit 112 of the base station apparatus 101 performs the operation indicated by the operation information of the set (specifically, communication with the control apparatus) in communication with the control apparatus indicated by the identifier of the set for each of the extracted sets. To limit the operation).
  • the predetermined message received from the control apparatus 102 includes an identifier indicating the control apparatus 102 (hereinafter referred to as “identifier A”), operation information indicating the operation of the base station apparatus 101 (hereinafter referred to as “operation information A”), including.
  • the predetermined message received from the control apparatus 103 includes an identifier indicating the control apparatus 103 (hereinafter referred to as “identifier B”) and operation information indicating the operation of the base station apparatus 101 (hereinafter referred to as “operation information B”). And including.
  • the above-mentioned predetermined message may be an Overload Start message defined in 3GPP (Third Generation Partnership Project).
  • the above-mentioned identifier is GUMMEI
  • the operation information is Overload Response.
  • the control unit 110 of the relay device 100 sets the identifier A and the operation information A, the identifier B, and the operation information B included in each predetermined message received from the plurality of control devices 102 and 103.
  • the set is included in one message and transmitted to the base station apparatus 101.
  • the extraction unit 111 of the base station apparatus 101 extracts a plurality of sets of identifiers indicating the control apparatus and operation information indicating the operation of the base station apparatus 101 from one message received from the relay apparatus 100. To do.
  • the extraction unit 111 of the base station apparatus 101 includes a set of an identifier A indicating the control apparatus 102 and operation information A (hereinafter referred to as “set A”), an identifier B indicating the control apparatus 103, and operation information B. Are extracted (hereinafter referred to as “set B”).
  • the operation unit 112 of the base station apparatus 101 performs the operation indicated by the operation information of the set for each of the above-described sets extracted by the extraction unit 111 in communication with the control device indicated by the identifier of the set.
  • the operation unit 112 of the base station apparatus 101 performs an operation indicated by the operation information A (hereinafter referred to as “operation A”) in communication with the control apparatus 102 indicated by the identifier A of the set A.
  • the operation unit 112 of the base station apparatus 101 performs an operation indicated by the operation information B (hereinafter referred to as “operation B”) in communication with the control apparatus 103 indicated by the identifier B of the set B.
  • operation A and the operation B are different from each other, the operation A is an operation that restricts communication with the control device 102, and the operation B is an operation that restricts communication with the control device 103.
  • the relay device 100 can apply different restrictions to the communication with the control devices 102 and 103 with one message, and can eliminate the congestion state of the control devices 102 and 103. That is, the relay device 100 can perform different congestion control for each MME with one message.
  • the above-described operation A may be an operation that restricts traffic to the control apparatus 102, for example, an operation that rejects traffic related to establishment of an RRC connection in the traffic of the control apparatus 102.
  • the above-described operation B may be an operation that restricts traffic to the control device 103, for example, an operation that rejects traffic other than high-priority session traffic in the traffic of the control device 103.
  • the relay device 100 can perform different congestion control for each of the control devices 102 and 103 with one Overload Start message.
  • the relay apparatus 100 sets and transmits operation information indicating the operation of the base station for each identifier indicating the control apparatus, and restricts communication to the base station apparatus 101 for each control apparatus based on the message. This is because the operation is performed.
  • a relay device connected to a base station device and a plurality of control devices, When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Control means for including the set of information in one message and transmitting it to the base station apparatus, The operation information is information indicating an operation of the base station device that restricts communication with the control device. A relay device characterized by that.
  • the predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
  • the relay device according to Supplementary Note 1, wherein: (Appendix 3)
  • the operation information includes restriction information indicating a percentage of traffic that is refused to be received.
  • the relay device according to any one of appendices 1 to 2, characterized in that: (Appendix 4)
  • the restriction information is Traffic Load Reduction Indication specified in 3GPP.
  • the relay device according to Supplementary Note 3, wherein (Appendix 5) Connected to a plurality of the base station devices, The control means transmits an Overload Stop message defined in 3GPP received from the control device with a predetermined time interval for each base station device,
  • the relay device according to any one of appendices 1 to 4, characterized in that: (Appendix 6)
  • the control means includes First call control means for storing in the storage means a set of the identifier and the operation information included in the message received from the first control device to be connected; Second call control means for storing, in the storage means, a set of the identifier and the operation information included in the message received from the second control device to be connected;
  • a third call control means for sending to the base station apparatus all the sets of the identifier and the operation information stored in the storage means included in the message at a predetermined opportunity;
  • the relay device according to any one of appendices 1 to 5, further comprising: (Appendix 7)
  • the identifier is GUMMEI
  • the relay device is a HeNB-GW (Home eNodeB Gateway).
  • the relay device according to any one of appendices 1 to 7, characterized in that: (Appendix 9) A base station device connected to a plurality of control devices via a relay device, Extraction means for extracting a plurality of sets of identifiers indicating the control device and operation information indicating the operation of the base station device from one message received from the relay device; For each of the extracted sets, operation means for performing an operation indicated by the operation information of the set in communication with the control device indicated by the identifier of the set, The operation is an operation of restricting the communication.
  • a base station apparatus A base station apparatus.
  • the identifier is GUMMEI defined in 3GPP
  • the base station apparatus according to appendix 9, wherein the operation information is an Overload Response defined in 3GPP.
  • the operation information includes regulatory information indicating a percentage of traffic that is refused to be received, The operation means performs an operation of rejecting received traffic at a rate indicated by the restriction information extracted from the operation information in the communication.
  • the restriction information is Traffic Load Reduction Indication specified in 3GPP.
  • the rejecting operation is an operation of discarding. 13.
  • the base station apparatus according to any one of appendices 11 to 12, characterized in that: (Appendix 14) When the operation unit receives an Overload Stop message defined in 3GPP from the relay device, the operation unit stops the operation of restricting communication. 14.
  • the base station apparatus according to any one of appendices 9 to 13, characterized in that: (Appendix 15)
  • a relay device is a system connected to a base station device and a plurality of control devices, The relay device is the relay device according to any one of appendices 1 to 8,
  • the base station apparatus is the base station apparatus according to any one of appendices 9 to 14, A system characterized by that.
  • (Appendix 16) A method of a device connected to a base station device and a plurality of control devices, When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Are included in one message and transmitted to the base station apparatus, The operation information is information indicating an operation of the base station device that restricts communication with the control device. A method characterized by that. (Appendix 17)
  • the predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
  • the method according to supplementary note 16 characterized by: (Appendix 18)
  • the operation information includes restriction information indicating a percentage of traffic that is refused to be received. 18.
  • the restriction information is Traffic Load Reduction Indication specified in 3GPP.
  • the method according to appendix 18, characterized by: (Appendix 20) A method of the apparatus connected to a plurality of the base station apparatuses, An Overload Stop message defined in 3GPP received from the control device is transmitted with a predetermined time interval for each base station device, 20.
  • the predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
  • the operation information includes restriction information indicating a percentage of traffic that is refused to be received.
  • the restriction information is Traffic Load Reduction Indication specified in 3GPP.
  • a recording medium on which the program according to any one of appendices 24 to 27 is recorded.
  • the control process is A first call control process for storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit; A second call control process for storing in the storage means a set of the identifier and the operation information included in the message received from the second control device; A third call control process for setting all the sets of the identifier and the operation information stored in the storage means to the message and transmitting the message to the base station device at a predetermined opportunity, A recording medium on which the program according to any one of appendices 24 to 28 is recorded.
  • the identifier is GUMMEI defined in 3GPP, 30.
  • the device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
  • the predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
  • the program according to supplementary note 32 characterized by: (Appendix 34)
  • the operation information includes restriction information indicating a percentage of traffic that is refused to be received. 34.
  • the restriction information is Traffic Load Reduction Indication specified in 3GPP. 35.
  • the control process is A first call control process for storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit; A second call control process for storing in the storage means a set of the identifier and the operation information included in the message received from the second control device; A third call control process for setting all the sets of the identifier and the operation information stored in the storage means to the message and transmitting the message to the base station device at a predetermined opportunity, 37.
  • the identifier is GUMMEI defined in 3GPP, 38.
  • the device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
  • the control step includes A first call control step of storing in a storage means a set of the identifier and the operation information included in the message received from the first control device; A second call control step of storing, in the storage means, a set of the identifier and the operation information included in the message received from the second control device; A third call control step of transmitting a set of the identifier and the operation information stored in the storage means to the base station apparatus in a predetermined opportunity, 21.

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Abstract

To solve a problem that commonly used HeNB-GWs cannot perform different congestion control for each MME by one Overload Start message, this relay device is connected to a base station device and a plurality of control devices, and is provided with a control means which, when receiving, from the plurality of control devices, predetermined messages each including an identifier indicating the control device and operation information indicating the operation of the base station device, includes, in one message, a pair of the identifier and the operation information included in each of the received predetermined messages, and transmits the message to the base station device. The operation information is information indicating the operation of the base station device that restricts communication with the control devices.

Description

中継装置、基地局、システム、方法、及びプログラムを記録した記録媒体Relay device, base station, system, method, and recording medium recording program

　本発明は、中継装置、基地局、システム、方法、及びプログラムを記録した記録媒体に関し、特に、輻輳制御を行う中継装置、基地局、システム、方法、及びプログラムを記録した記録媒体に関する。 The present invention relates to a relay device, a base station, a system, a method, and a recording medium on which a program is recorded, and particularly to a relay device, base station, system, method, and a recording medium on which a congestion control is performed.

　（１）Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージ
　３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）には、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージが規定されている。Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、ＭＭＥ（Ｍｏｂｉｌｉｔｙ　Ｍａｎａｇｅｍｅｎｔ　Ｅｎｔｉｔｙ）が輻輳状態になったことを示すメッセージであり、輻輳状態となったＭＭＥから送信される。 (1) Overload Start message An Overload Start message is defined in 3GPP (Third Generation Partnership Project). The Overload Start message is a message indicating that the MME (Mobility Management Entity) has entered a congestion state, and is transmitted from the MME that has entered the congestion state.

　（２）移動体通信システムにおけるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージ
　図１は、一般的な移動体通信システムの構成例を示す図である。 (2) Overload Start Message in Mobile Communication System FIG. 1 is a diagram illustrating a configuration example of a general mobile communication system.

　一般的な移動体通信システムでは、図１に示されるように、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）がＭＭＥに接続されており、ＨｅＮＢ－ＧＷは、輻輳状態となったＭＭＥからＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。ＨｅＮＢ－ＧＷは、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを、接続する各ＨｅＮＢ（Ｈｏｍｅ　ｅＮｏｄｅＢ）に送信する。各ＨｅＮＢは、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに含まれる情報要素が示す動作、具体的には、ＭＭＥへのトラヒックを制限する動作を行う。その結果、各ＨｅＮＢからＭＭＥへのトラヒックが少なくなり、ＭＭＥの輻輳状態が解消する。 In a general mobile communication system, as shown in FIG. 1, a HeNB-GW (Home eNodeB Gateway) is connected to an MME, and the HeNB-GW receives an Overload Start message from the MME that has become congested. To do. The HeNB-GW transmits the received Overload Start message to each connected HeNB (Home eNodeB). Each HeNB performs an operation indicated by an information element included in the received Overload Start message, specifically, an operation for restricting traffic to the MME. As a result, the traffic from each HeNB to the MME is reduced, and the congestion state of the MME is eliminated.

　（３）Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージの構成
　上述のＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、非特許文献１、２の３ＧＰＰに規定がされている。図２、３は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを説明する為の図である。 (3) Structure of Overload Start Message The above-described Overload Start message is defined in 3GPP in Non-Patent Documents 1 and 2. 2 and 3 are diagrams for explaining an Overload Start message defined in 3GPP.

　Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、図２の表に示されるように、Ｏｖｅｒｌｏａｄ　ＲｅｓｐｏｎｓｅやＧＵＭＭＥＩ等の情報要素を含む。ＧＵＭＭＥＩは、ＭＭＥを示す識別子である。 The Overload Start message includes information elements such as Overload Response and GUMMEI as shown in the table of FIG. GUMMEI is an identifier indicating the MME.

　Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅは、ＭＭＥへのトラヒックを制限するＨｅＮＢの動作を示す情報要素である。Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅは、図３に示されるように、ＲＲＣコネクションの確立を拒絶するＨｅＮＢの動作を示す情報要素であってもよい。ＲＲＣコネクションの確立を拒絶することは、ＲＲＣコネクションの確立に関するトラヒックを拒絶することであり、ＭＭＥへのトラヒックを制限することになるからである。ＲＲＣは、Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｃｏｎｔｒｏｌの略称である。 The Overload Response is an information element indicating the operation of the HeNB that restricts traffic to the MME. The Overload Response may be an information element indicating the operation of the HeNB rejecting establishment of the RRC connection as shown in FIG. This is because rejecting the establishment of the RRC connection means rejecting the traffic related to the establishment of the RRC connection and restricting the traffic to the MME. RRC is an abbreviation for Radio Resource Control.

　（４）ＨｅＮＢ－ＧＷによる輻輳制御
　上述のＨｅＮＢ－ＧＷは、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに複数のＧＵＭＭＥＩを含めてもよい。なぜなら、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、図２に示される通り、１…＜ｍａｘｎｏｆＭＭＥＣｓ＞の範囲で複数のＧＵＭＭＥＩを含むことができるからである。ｍａｘｎｏｆＭＭＥＣｓは値２５６である。 (4) Congestion control by HeNB-GW The above-mentioned HeNB-GW may include a plurality of GUMMEIs in the Overload Start message. This is because the Overload Start message can include a plurality of GUMMEIs in the range of 1... <MaxnofMMECs> as shown in FIG. maxnofMMECs has a value of 256.

　その為、ＨｅＮＢ－ＧＷは、複数のＧＵＭＭＥＩを含むＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢに送信することができる。その場合、ＨｅＮＢは、複数のＧＵＭＭＥＩを含むＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ－ＧＷから受信する。ＨｅＮＢは、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに含まれる複数のＧＵＭＭＥＩが示す各ＭＭＥのトラヒックについて、トラヒックを制限する動作を行う。その際、ＨｅＮＢは、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに含まれるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅに示される動作を行うことで、トラヒックを制限する動作を行う。その結果、複数のＭＭＥへのトラヒックが少なくなり、各ＭＭＥの輻輳状態が解消する。 Therefore, the HeNB-GW can transmit an Overload Start message including a plurality of GUMMEIs to the HeNB. In that case, the HeNB receives an Overload Start message including a plurality of GUMMEIs from the HeNB-GW. HeNB performs the operation | movement which restrict | limits traffic about the traffic of each MME which the some GUMMEI contained in the received Overload Start message. At that time, the HeNB performs an operation of limiting traffic by performing the operation indicated in the Overload Response included in the received Overload Start message. As a result, traffic to a plurality of MMEs is reduced, and the congestion state of each MME is eliminated.

　上述のように、ＨｅＮＢ－ＧＷは、複数のＧＵＭＭＥＩを含むＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを１つ送信することで、複数のＭＭＥについて輻輳制御を行うことができる。 As described above, the HeNB-GW can perform congestion control for a plurality of MMEs by transmitting one Overload Start message including a plurality of GUMMEIs.

　（５）特許文献１のシステムに関する説明
　ＭＭＥに接続された装置については、特許文献１に開示されている。図４は、特許文献１のシステムの構成例を示す図である。 (5) Description of System of Patent Document 1 A device connected to the MME is disclosed in Patent Document 1. FIG. 4 is a diagram illustrating a configuration example of a system disclosed in Patent Document 1.

　特許文献１のシステムは、図４に示されるように、ＭＭＥ９０と、アクセスポイント９１、９２、９３と、コンセントレータ構成要素９４と、を備える。アクセスポイント９１、９２、９３は基地局である。コンセントレータ構成要素９４は、ＭＭＥ９０とアクセスポイント９１、９２、９３に接続する。 As shown in FIG. 4, the system of Patent Literature 1 includes an MME 90, access points 91, 92, and 93, and a concentrator component 94. Access points 91, 92, and 93 are base stations. The concentrator component 94 connects to the MME 90 and the access points 91, 92, 93.

　コンセントレータ構成要素９４は、ＭＭＥ９０の識別子（例えば、ＧＵＭＭＥＩ）と、アクセスポイント９１、９２、９３を示す識別子と、を関連づけたルーティングテーブルを記憶する。コンセントレータ構成要素９４は、ＭＭＥ９０からパケットを受信すると、受信したパケット内に含まれるＭＭＥ９０の識別子と、上記ルーティングテーブルと、に基づいて、受信したパケットに関連するアクセスポイント９１、９２、９３の識別子を取得する。コンセントレータ構成要素９４は、取得した識別子のアクセスポイント９１、９２、９３にパケットを送信する。 The concentrator component 94 stores a routing table in which an identifier (for example, GUMMEI) of the MME 90 is associated with identifiers indicating the access points 91, 92, and 93. When the concentrator component 94 receives the packet from the MME 90, the concentrator component 94 determines the identifier of the access point 91, 92, 93 related to the received packet based on the identifier of the MME 90 included in the received packet and the routing table. get. The concentrator component 94 transmits a packet to the access points 91, 92, 93 having the acquired identifier.

　上述の構成や動作の通り、特許文献１のコンセントレータ構成要素９４は、ＭＭＥ９０からのパケットをアクセスポイント９１、９２、９３に中継することができる。 As described above, the concentrator component 94 of Patent Document 1 can relay packets from the MME 90 to the access points 91, 92, and 93.

　コンセントレータ構成要素９４は、ＭＭＥと基地局との間に接続されているので、一般的なＨｅＮＢ－ＧＷに相当し、３ＧＰＰの規定に従ってＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを基地局に送信してもよい。その場合、コンセントレータ構成要素９４は、一般的なＨｅＮＢ－ＧＷと同様に、ＭＭＥについて輻輳制御を行うことができる。 Since the concentrator component 94 is connected between the MME and the base station, it corresponds to a general HeNB-GW, and may transmit an Overload Start message to the base station according to the 3GPP rules. In that case, the concentrator component 94 can perform congestion control for the MME, as in a general HeNB-GW.

特表２０１３－５３５８５１号公報Special table 2013-535851 gazette

３ＧＰＰ　ＴＳ３６．３００　Ｖ１４．３．０　Ｏｖｅｒａｌｌ　ｄｅｓｃｒｉｐｔｉｏｎ；　Ｓｔａｇｅ　２3GPP TS36.300 V14.3.0 Overall description; Stage 2 ３ＧＰＰ　ＴＳ３６．４１３　Ｖ１４．３．０　Ｓ１　Ａｐｐｌｉｃａｔｉｏｎ　Ｐｒｏｔｏｃｏｌ　（Ｓ１ＡＰ）3GPP TS36.413 V14.3.0 S1 Application Protocol (S1AP)

　しかし、特許文献１のコンセントレータ構成要素９４を含め、一般的なＨｅＮＢ－ＧＷは、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に異なる輻輳制御を行うことができないという課題があった。 However, a general HeNB-GW including the concentrator component 94 of Patent Document 1 has a problem that it cannot perform congestion control different for each MME with one Overload Start message.

　なぜなら、３ＧＰＰに規定されているＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージには、図２に示されるように、１つしかＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが設けられていないからである。その為、ＨｅＮＢ－ＧＷは、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに、ＧＵＭＭＥＩ毎（すなわち、ＭＭＥ毎）に異なるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを設定できず、ＭＭＥ毎に異なる輻輳制御を行うことができなかった。 This is because only one Overload Response is provided in the Overload Start message defined in 3GPP as shown in FIG. For this reason, the HeNB-GW cannot set different Overload Responses for each GUMMEI (that is, for each MME) in the Overload Start message, and cannot perform different congestion control for each MME.

　本発明は、上記課題を解決する中継装置、基地局、システム、方法、及びプログラムを記録した記録媒体を提供することを目的とする。 An object of the present invention is to provide a relay device, a base station, a system, a method, and a recording medium on which a program is recorded that solves the above problems.

　上記目的を達成するために、本発明の中継装置は、基地局装置と複数の制御装置に接続された中継装置であって、前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御手段を備え、前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である。 To achieve the above object, a relay apparatus according to the present invention is a relay apparatus connected to a base station apparatus and a plurality of control apparatuses, and includes an identifier indicating the control apparatus and operation information indicating an operation of the base station apparatus. Control including a set of the identifier and the operation information included in each of the received predetermined messages in one message when the predetermined message including the message is received from a plurality of the control devices. And the operation information is information indicating an operation of the base station device that restricts communication with the control device.

　上記目的を達成するために、本発明の基地局装置は、中継装置を介して複数の制御装置に接続された基地局装置であって、前記中継装置から受信した１つのメッセージから前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報の組を複数抽出する抽出手段と、抽出した前記組毎に、前記組の前記識別子が示す前記制御装置との通信において、前記組の前記動作情報が示す動作を行う動作手段と、を備え、前記動作は、前記通信を制限する動作である。 In order to achieve the above object, a base station apparatus according to the present invention is a base station apparatus connected to a plurality of control apparatuses via a relay apparatus, wherein the control apparatus is controlled from one message received from the relay apparatus. In the communication with the control device indicated by the identifier of the set for each of the extracted sets, an extraction unit that extracts a plurality of sets of operation information indicating the identifier and the operation of the base station device, and the operation of the set Operating means for performing an operation indicated by the information, and the operation is an operation for restricting the communication.

　上記目的を達成するために、本発明のシステムは、中継装置が基地局装置と複数の制御装置に接続されたシステムであって、前記中継装置は、基地局装置と複数の制御装置に接続された中継装置であって、前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御手段を備え、前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報であり、前記基地局装置は、中継装置を介して複数の制御装置に接続された基地局装置であって、前記中継装置から受信した１つのメッセージから前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報との組を複数抽出する抽出手段と、抽出した前記組毎に、前記組の前記識別子が示す前記制御装置との通信において、前記組の前記動作情報が示す動作を行う動作手段と、を備え、前記動作は、前記通信を制限する動作である。 In order to achieve the above object, a system of the present invention is a system in which a relay device is connected to a base station device and a plurality of control devices, and the relay device is connected to the base station device and a plurality of control devices. Included in each of the received predetermined messages when a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices. Control means for including the set of the identifier and the operation information included in one message and transmitting the message to the base station apparatus, and the operation information indicates an operation of the base station apparatus that restricts communication with the control apparatus. Information, and the base station device is a base station device connected to a plurality of control devices via a relay device, and the control device is transmitted from one message received from the relay device. Extracting means for extracting a plurality of sets of identifiers and operation information indicating the operation of the base station apparatus, and communication with the control apparatus indicated by the identifiers of the sets for each of the extracted sets. Operation means for performing an operation indicated by the operation information, and the operation is an operation for restricting the communication.

　上記目的を達成するために、本発明の方法は、基地局装置と複数の制御装置に接続された装置の方法であって、前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信し、前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である。 In order to achieve the above object, a method of the present invention is a method of an apparatus connected to a base station apparatus and a plurality of control apparatuses, and an identifier indicating the control apparatus and operation information indicating an operation of the base station apparatus And a set of the identifier and the operation information included in each of the received predetermined messages is included in one message and transmitted to the base station apparatus, The operation information is information indicating an operation of the base station device that restricts communication with the control device.

　上記目的を達成するために、本発明のプログラムを記録した記録媒体は、基地局装置と複数の制御装置に接続された装置のプロセッサに、前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御処理を行わせるためのプログラムを記録した記録媒体であり、前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である。 In order to achieve the above object, a recording medium recording the program of the present invention provides an identifier indicating the control device and an operation of the base station device to a processor of the device connected to the base station device and a plurality of control devices. When a predetermined message including operation information is received from a plurality of the control devices, a set of the identifier and the operation information included in each of the received predetermined messages is included in one message to the base station device. The operation information is information indicating the operation of the base station device that restricts communication with the control device.

　本発明によれば、ＨｅＮＢ－ＧＷは、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に異なる輻輳制御を行うことができる。 According to the present invention, the HeNB-GW can perform different congestion control for each MME with a single Overload Start message.

一般的な移動体通信システムの構成例を示す図である。It is a figure which shows the structural example of a general mobile communication system. ３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを説明する為の図（その１）である。FIG. 3 is a diagram (part 1) for explaining an Overload Start message defined in 3GPP (Third Generation Partnership Project). ３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを説明する為の図（その２）である。FIG. 6 is a diagram (part 2) for explaining an Overload Start message defined in 3GPP. 特許文献１のシステムの構成例を示す図であるIt is a figure which shows the structural example of the system of patent document 1. 本発明の第１の実施の形態におけるシステムが使用するＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを説明する為の図である。It is a figure for demonstrating the Overload Start message which the system in the 1st Embodiment of this invention uses. 本発明の第１の実施の形態におけるシステムの構成例を示す図である。It is a figure which shows the structural example of the system in the 1st Embodiment of this invention. 本発明の第１の実施の形態におけるシステムに備わるＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）の構成例を示す図である。It is a figure which shows the structural example of HeNB-GW (Home eNodeB Gateway) with which the system in the 1st Embodiment of this invention is equipped. 本発明の第１の実施の形態におけるシステムに備わるＨｅＮＢ（Ｈｏｍｅ　ｅＮｏｄｅＢ）の構成例を示す図である。It is a figure which shows the structural example of HeNB (Home eNodeB) with which the system in the 1st Embodiment of this invention is equipped. 本発明の第１の実施の形態におけるシステムの動作を説明する為の図である。It is a figure for demonstrating operation | movement of the system in the 1st Embodiment of this invention. 本発明の第１の実施の形態におけるシステムの動作（トラヒックを制限する動作を解除する動作）を説明する為の図である。It is a figure for demonstrating the operation | movement (operation | movement which cancel | releases the operation | movement which restrict | limits traffic) in the 1st Embodiment of this invention. 本発明の第２の実施の形態におけるシステムが使用するＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージの構成例を示す図である。It is a figure which shows the structural example of the Overload Start message which the system in the 2nd Embodiment of this invention uses. 本発明の第２の実施の形態におけるシステムの構成例を示す図である。It is a figure which shows the structural example of the system in the 2nd Embodiment of this invention. 本発明の第２の実施の形態におけるシステムに備わるＨｅＮＢ－ＧＷの構成例を示す図である。It is a figure which shows the structural example of HeNB-GW with which the system in the 2nd Embodiment of this invention is equipped. 本発明の第２の実施の形態におけるシステムに備わるＨｅＮＢの構成例を示す図である。It is a figure which shows the structural example of HeNB with which the system in the 2nd Embodiment of this invention is equipped. 本発明の第２の実施の形態におけるシステムの動作を説明する為の図である。It is a figure for demonstrating operation | movement of the system in the 2nd Embodiment of this invention. 本発明の第３の実施の形態におけるシステムの構成例を示す図である。It is a figure which shows the structural example of the system in the 3rd Embodiment of this invention. 本発明の第３の実施の形態におけるシステムに備わるＨｅＮＢ－ＧＷの構成例を示す図である。It is a figure which shows the structural example of HeNB-GW with which the system in the 3rd Embodiment of this invention is equipped. 本発明の第３の実施の形態におけるシステムの動作を説明する為の図である。It is a figure for demonstrating operation | movement of the system in the 3rd Embodiment of this invention. 本発明の第４の実施の形態におけるシステムの構成例を示す図である。It is a figure which shows the structural example of the system in the 4th Embodiment of this invention.

　次に本発明の実施形態について、図面を参照して詳細に説明する。図５は、本発明の第１の実施の形態におけるシステムが使用するＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを説明する為の図である。 Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 5 is a diagram for explaining the Overload Start message used by the system according to the first embodiment of this invention.

　≪第１の実施の形態≫
[概要]
　本実施形態のシステムに備わるＨｅＮＢ－ＧＷは、図５に示されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを用いる。図５のＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、ＧＵＭＭＥＩ毎にＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが設けられたメッセージである。本実施形態のシステムに備わるＨｅＮＢ－ＧＷは、図５のＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージ１つに、ＧＵＭＭＥＩ毎に異なるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを設定してＨｅＮＢに送信する。 << First Embodiment >>
[Overview]
The HeNB-GW provided in the system of the present embodiment uses the Overload Start message shown in FIG. The Overload Start message in FIG. 5 is a message in which an Overload Response is provided for each GUMMEI. The HeNB-GW provided in the system of the present embodiment sets different Overload Response for each GUMMEI in one Overload Start message in FIG. 5 and transmits it to the HeNB.

　その結果、本実施形態のシステムに備わるＨｅＮＢ－ＧＷは、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＧＵＭＭＥＩ毎（すなわち、ＭＭＥ毎）に異なる輻輳制御を行うことができる。 As a result, the HeNB-GW provided in the system of the present embodiment can perform different congestion control for each GUMMEI (that is, for each MME) with one Overload Start message.

　以下に、本発明の第１の実施の形態におけるシステムの構成や機能、動作について説明する。 Hereinafter, the configuration, function, and operation of the system according to the first embodiment of the present invention will be described.

　［構成の説明］
　まず、本発明の第１の実施の形態におけるシステムの構成と機能について説明する。図６は、本発明の第１の実施の形態におけるシステムの構成例を示す図である。 [Description of configuration]
First, the configuration and function of the system according to the first embodiment of the present invention will be described. FIG. 6 is a diagram illustrating a configuration example of a system according to the first embodiment of the present invention.

　（１）本発明の第１の実施の形態におけるシステムの構成
　本実施形態のシステムは、図６に示されるように、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）１と、ＨｅＮＢ（Ｈｏｍｅ　ｅＮｏｄｅＢ）２、３、４と、ＭＭＥ５、６と、を備える。ＭＭＥは、Ｍｏｂｉｌｉｔｙ　Ｍａｎａｇｅｍｅｎｔ　Ｅｎｔｉｔｙの略称である。ＨｅＮＢ－ＧＷ１は、有線回線を介してＨｅＮＢ２、３、４及びＭＭＥ５、６と接続される。 (1) System configuration in the first embodiment of the present invention As shown in FIG. 6, the system of the present embodiment includes a HeNB-GW (Home eNodeB Gateway) 1 and HeNBs (Home eNodeB) 2, 3. 4 and MMEs 5 and 6. MME is an abbreviation for Mobility Management Entity. The HeNB-GW1 is connected to the HeNBs 2, 3, 4 and the MMEs 5 and 6 via a wired line.

　（２）ＨｅＮＢ－ＧＷ１の構成
　図７は、本発明の第１の実施の形態におけるシステムに備わるＨｅＮＢ－ＧＷ１の構成例を示す図である。 (2) Configuration of HeNB-GW 1 FIG. 7 is a diagram illustrating a configuration example of the HeNB-GW 1 included in the system according to the first embodiment of the present invention.

　ＨｅＮＢ－ＧＷ１は、図７に示されるように、呼制御部１０＿１と、呼制御部１０＿２と、呼制御部１０＿３と、データ管理部１１と、を備える。呼制御部１０＿１、呼制御部１０＿２、及び呼制御部１０＿３は、以下、「呼制御部１０＿１～１０＿３」と総称する。 As shown in FIG. 7, the HeNB-GW 1 includes a call control unit 10_1, a call control unit 10_2, a call control unit 10_3, and a data management unit 11. The call control unit 10_1, the call control unit 10_2, and the call control unit 10_3 are hereinafter collectively referred to as “call control units 10_1 to 10_3”.

　呼制御部１０＿１～１０＿３は、図示していないが、各々、データ管理部１１と有線回線を介して接続される。データ管理部１１は一般的なメモリである。 Although not shown, the call control units 10_1 to 10_3 are each connected to the data management unit 11 via a wired line. The data management unit 11 is a general memory.

　呼制御部１０＿１は、有線回線を介してＭＭＥ５と接続される。呼制御部１０＿２は、有線回線を介してＭＭＥ６と接続される。呼制御部１０＿３は、有線回線を介してＨｅＮＢ２、３、４と接続される。また、呼制御部１０＿３は、有線回線を介して、呼制御部１０＿１と呼制御部１０＿２に接続される。 The call control unit 10_1 is connected to the MME 5 via a wired line. The call control unit 10_2 is connected to the MME 6 via a wired line. The call control unit 10_3 is connected to the HeNBs 2, 3, and 4 through a wired line. The call control unit 10_3 is connected to the call control unit 10_1 and the call control unit 10_2 via a wired line.

　（３）ＨｅＮＢ２、３、４の構成
　ＨｅＮＢ２、３、４は、同じ構成を備えるので、代表してＨｅＮＢ２の構成について説明する。図８は、本発明の第１の実施の形態におけるシステムに備わるＨｅＮＢ２の構成例を示す図である。 (3) Configuration of HeNBs 2, 3, and 4 Since HeNBs 2, 3, and 4 have the same configuration, the configuration of HeNB 2 will be described as a representative. FIG. 8 is a diagram illustrating a configuration example of the HeNB 2 provided in the system according to the first embodiment of the present invention.

　ＨｅＮＢ２は、図８に示されるように、抽出部１２と、動作部１３と、を備える。ＨｅＮＢ２の抽出部１２は、有線回線を介してＨｅＮＢ－ＧＷ１の呼制御部１０＿３と接続される。ＨｅＮＢ２の動作部１３は、有線回線を介して抽出部１２と接続される。 HeNB2 is provided with the extraction part 12 and the operation | movement part 13, as FIG. 8 shows. The extraction unit 12 of the HeNB2 is connected to the call control unit 10_3 of the HeNB-GW1 via a wired line. The operation unit 13 of the HeNB 2 is connected to the extraction unit 12 via a wired line.

　（４）ＨｅＮＢ－ＧＷ１が使用する新しいメッセージ
　本実施形態のＨｅＮＢ－ＧＷ１は、図５に示される新しいＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを使用する。図５に示されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、ＧＵＭＭＥＩ　Ｌｉｓｔ内に、ＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが定義されたメッセージである。言い換えると、図５に示されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、ＧＵＭＭＥＩ毎にＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが備わるメッセージである。 (4) New message used by HeNB-GW1 The HeNB-GW1 of this embodiment uses a new Overload Start message shown in FIG. The Overload Start message shown in FIG. 5 is a message in which GUMMEI and Overload Response are defined in the GUMMEI List. In other words, the Overload Start message shown in FIG. 5 is a message provided with an Overload Response for each GUMMEI.

　（５）各機能部の実現方法について
　ＨｅＮＢ－ＧＷ１の呼制御部１０＿１～１０＿３は、各々、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）等の演算処理装置と、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）等の一般的なメモリと、を用いて実現することができる。ＨｅＮＢ－ＧＷ１のデータ管理部１１は、ＲＡＭ等の一般的なメモリを用いて実現することができる。 (5) Method for Realizing Each Functional Unit Each of the call control units 10_1 to 10_3 of the HeNB-GW 1 includes an arithmetic processing unit such as a CPU (Central Processing Unit) and a general memory such as a RAM (Random Access Memory). , Can be realized. The data management unit 11 of the HeNB-GW 1 can be realized using a general memory such as a RAM.

　ＨｅＮＢ２、３、４の抽出部１２と動作部１３は、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）等の演算処理装置と、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）等の一般的なメモリと、を用いて実現することができる。 The extraction unit 12 and the operation unit 13 of the HeNBs 2, 3, and 4 can be realized by using an arithmetic processing device such as a CPU (Central Processing Unit) and a general memory such as a RAM (Random Access Memory). .

　（６）本実施形態におけるシステムに備わる各装置の機能
　まず、ＨｅＮＢ－ＧＷ１の機能について説明を行う。説明は、ＨｅＮＢ－ＧＷ１の機能部毎に行う。 (6) Functions of each device provided in the system according to the present embodiment First, functions of the HeNB-GW 1 will be described. The description will be given for each functional unit of the HeNB-GW1.

　（６－１）ＨｅＮＢ－ＧＷ１の呼制御部１０＿１と呼制御部１０＿２の機能
　（６－１－１）受信機能
　呼制御部１０＿１は、輻輳状態となったＭＭＥ５からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。同様に、呼制御部１０＿２は、輻輳状態となったＭＭＥ６からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。呼制御部１０＿１と呼制御部１０＿２が受信するＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、図２に示される一般的なＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである。当該Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージは、ＭＭＥを示すＧＵＭＭＥＩと、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅと、をそれぞれ１つずつ含む。 (6-1) Functions of Call Control Unit 10_1 and Call Control Unit 10_2 of HeNB-GW 1 (6-1-1) Reception Function The call control unit 10_1 receives an Overload Start message from the MME 5 in a congested state. Similarly, the call control unit 10_2 receives an Overload Start message from the MME 6 that has become congested. The Overload Start message received by the call control unit 10_1 and the call control unit 10_2 is a general Overload Start message shown in FIG. The Overload Start message includes one each of GUMMEI indicating MME and Overload Response.

　（６－１－２）抽出機能
　呼制御部１０＿１と呼制御部１０＿２は、受信したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージからＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを抽出する。 (6-1-2) Extraction Function The call control unit 10_1 and the call control unit 10_2 extract GUMMEI and Overload Response from the received Overload Start message.

　（６－１－３）記憶機能
　呼制御部１０＿１と呼制御部１０＿２は、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを一旦、データ管理部１１（メモリ）に記憶する。但し、呼制御部１０＿１と呼制御部１０＿２は、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎを１組のデータとして記憶する為、それらに組を示す番号（以下、「組番号」という）を付与してからデータ管理部１１（メモリ）に記憶する。 (6-1-3) Storage Function The call control unit 10_1 and the call control unit 10_2 temporarily store the extracted GUMMEI and Overload Response in the data management unit 11 (memory). However, since the call control unit 10_1 and the call control unit 10_2 store the extracted GMUMEI and Overload Action as a set of data, the data after assigning a number indicating the set (hereinafter referred to as “set number”) to the data Store in the management unit 11 (memory).

　上述の組番号は、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎが１組のデータであることを示す番号であり、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎに共通する番号である。組番号は、例えば、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎを記憶する時の時刻情報であってもよい。その場合、呼制御部１０＿１と呼制御部１０＿２は、時計機能を備え、時計機能が出力する時刻情報を組番号としてＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎに付与する。 The above-described combination number is a number indicating that the extracted GUMMEI and Overload Action is a set of data, and is a number common to the extracted GUMMEI and Overload Action. The set number may be time information when storing the extracted GUMMEI and Overload Action, for example. In this case, the call control unit 10_1 and the call control unit 10_2 have a clock function, and assign time information output by the clock function to GUMMEI and Overload Action.

　（６－１－４）装置内通知機能
　呼制御部１０＿１と呼制御部１０＿２は、ＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎをデータ管理部１１（メモリ）に記憶すると、動作開始を示す電気信号（以下、「動作開始信号」という）を呼制御部１０＿３に出力する。 (6-1-4) In-device Notification Function When the call control unit 10_1 and the call control unit 10_2 store the GUMMEI and Overload Action in the data management unit 11 (memory), an electrical signal indicating the start of operation (hereinafter referred to as “operation start”). Signal ") to the call control unit 10_3.

　（６－２）ＨｅＮＢ－ＧＷ１の呼制御部１０＿３の機能
　（６－２－１）読出機能
　呼制御部１０＿３は、計時機能（以下、「タイマ」という）を備える。 (6-2) Function of Call Control Unit 10_3 of HeNB-GW1 (6-2-1) Read Function The call control unit 10_3 has a timekeeping function (hereinafter referred to as “timer”).

　呼制御部１０＿３は、動作開始信号が入力されると、タイマを起動し、０秒から時間の計測を開始する。呼制御部１０＿１と１０＿２がＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージのＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅをデータ管理部１１（メモリ）に記憶するのを待つ為である。 When the operation start signal is input, the call control unit 10_3 starts a timer and starts measuring time from 0 seconds. This is to wait for the call control units 10_1 and 10_2 to store the GUMME and Overload Response of the Overload Start message in the data management unit 11 (memory).

　上述のタイマは、一般的なハードウエアタイマであってもよい。ハードウエアタイマは、マイクロ秒単位で高精度に時間を計測できる。 The above timer may be a general hardware timer. The hardware timer can measure time with high accuracy in microseconds.

　呼制御部１０＿３は、タイマにより計測される時間が所定時間（例えば１ミリ秒）になると、タイマを停止する。 The call control unit 10_3 stops the timer when the time measured by the timer reaches a predetermined time (for example, 1 millisecond).

　上述の所定時間は、本実施形態のシステムの管理者によって予め呼制御部１０＿３に設定される。本実施形態のシステムの管理者は、ほぼ同時にＭＭＥ５、６から受信したと考える２つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージの時間差より大きい時間を所定時間として予め呼制御部１０＿３に設定する。 The predetermined time described above is set in advance in the call control unit 10_3 by the system administrator of the present embodiment. The system administrator of the present embodiment sets in advance in the call control unit 10_3 a predetermined time that is greater than the time difference between the two Overload Start messages that are considered to be received from the MMEs 5 and 6 almost simultaneously.

　呼制御部１０＿３は、タイマを停止すると、データ管理部１１（メモリ）に記憶されている情報を全て読み出す。 When the timer is stopped, the call control unit 10_3 reads all information stored in the data management unit 11 (memory).

　具体的には、呼制御部１０＿３は、組番号が付与されたＧＵＭＭＥＩと、組番号が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅと、を全て読み出す。 Specifically, the call control unit 10_3 reads all the GMUMEI to which the set number is assigned and the Overload Response to which the set number is assigned.

　なお、呼制御部１０＿３は、タイマ起動中に動作開始信号が入力された場合は、タイマを起動しない。呼制御部１０＿３は、所定時間になるまで時間の計測を継続する。 Note that the call control unit 10_3 does not start the timer when an operation start signal is input during timer startup. The call control unit 10_3 continues to measure time until a predetermined time is reached.

　（６－２－２）メッセージ作成機能
　呼制御部１０＿３は、情報を全て読み出すと、読み出した情報のうち、同じ組番号が付与されているＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを、図５に示されるＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージのＧＵＭＭＥＩ　Ｌｉｓｔ内に設定する。 (6-2-2) Message Creation Function When the call control unit 10_3 reads all the information, the GUMEI and Overload Response to which the same set number is assigned is read out from the read information, and the Overload Start message shown in FIG. In the GUMMEI List.

　図５に示されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージについては、「（４）ＨｅＮＢ－ＧＷ１が用いる新しいメッセージ」で説明した通りである。呼制御部１０＿３は、同じ組番号が付与されているＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを、ＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅの順に図５に示されるメッセージのＧＵＭＭＥＩ　Ｌｉｓｔ内に設定する。 The Overload Start message shown in FIG. 5 is as described in “(4) New message used by HeNB-GW1”. The call control unit 10_3 sets GUMMEI and Overload Response to which the same set number is assigned, in the GUMMEI List of the messages shown in FIG. 5 in the order of GUMMEI and Overload Response.

　その結果、呼制御部１０＿３は、ＧＵＭＭＥＩ毎にＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが設定されたＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを作成する。 As a result, the call control unit 10_3 creates an Overload Start message in which an Overload Response is set for each GUMMEI.

　（６－２－３）メッセージ送信機能
　呼制御部１０＿３は、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを作成すると、作成したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ２、３、４に送信する。 (6-2-3) Message Transmission Function When the call control unit 10_3 creates an Overload Start message, the call control unit 10_3 transmits the created Overload Start message to the HeNBs 2, 3, and 4.

　（６－３）ＨｅＮＢ２、３、４の機能
　次に、ＨｅＮＢ２、３、４の機能について説明を行う。ＨｅＮＢ２、３、４は同じ機能を有するので、代表してＨｅＮＢ２の機能について説明を行う。説明は、ＨｅＮＢ２の機能部毎に行う。 (6-3) Functions of HeNBs 2, 3, and 4 Next, functions of HeNBs 2, 3, and 4 will be described. Since the HeNBs 2, 3, and 4 have the same function, the function of the HeNB 2 will be described as a representative. The description will be given for each functional unit of HeNB2.

　（６－３－１）抽出部１２の機能（Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージ転送機能）
　抽出部１２は、ＨｅＮＢ－ＧＷ１からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、受信したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージからＧＵＭＭＥＩ　Ｌｉｓｔを抽出する。抽出部１２は、抽出したＧＵＭＭＥＩ　Ｌｉｓｔを電気信号（以下、「電気信号Ａ」という）として動作部１３に出力する。電気信号Ａは、ＧＵＭＭＥＩ　Ｌｉｓｔが含まれていることを示すパルス信号を含む。
（６－３－２）抽出部１２の機能（トラヒック転送機能）
　抽出部１２は、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージ以外のトラヒックをＨｅＮＢ－ＧＷ１から受信すると、そのトラヒックを電気信号（以下、「電気信号Ｂ」という）として動作部１３に出力する。電気信号Ｂは、トラヒックが含まれていることを示すパルス信号を含む。 (6-3-1) Function of Extraction Unit 12 (Overload Start Message Transfer Function)
When receiving the Overload Start message from the HeNB-GW 1, the extraction unit 12 extracts a GUMMEI List from the received Overload Start message. The extraction unit 12 outputs the extracted GUMME List to the operation unit 13 as an electric signal (hereinafter referred to as “electric signal A”). The electric signal A includes a pulse signal indicating that the GMUMEI List is included.
(6-3-2) Function of extraction unit 12 (traffic transfer function)
When receiving the traffic other than the Overload Start message from the HeNB-GW 1, the extraction unit 12 outputs the traffic to the operation unit 13 as an electrical signal (hereinafter referred to as “electric signal B”). The electric signal B includes a pulse signal indicating that traffic is included.

　抽出部１２は、動作部１３から電気信号を受信した場合は、受信した電気信号からトラヒックを抽出し、抽出したトラヒックをＨｅＮＢ－ＧＷ１に送信する。 When receiving the electrical signal from the operation unit 13, the extraction unit 12 extracts traffic from the received electrical signal and transmits the extracted traffic to the HeNB-GW1.

　（６－３－３）動作部１３の機能（制限機能）
　動作部１３は、電気信号Ａが抽出部１２から入力されると、入力された電気信号ＡからＧＵＭＭＥＩ　Ｌｉｓｔを抽出する。ＧＵＭＭＥＩ　Ｌｉｓｔには、ＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅの組が含まれている。 (6-3-3) Function of operation unit 13 (restriction function)
When the electric signal A is input from the extraction unit 12, the operation unit 13 extracts the GUMMEI List from the input electric signal A. The GUMMEI List includes a set of GUMMEI and Overload Response.

　動作部１３は、抽出したＧＵＭＭＥＩ　Ｌｉｓｔの先頭から順にＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅの組を抽出する。動作部１３は、ＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅの組を抽出する毎に、抽出した組のＧＵＭＭＥＩが示すＭＭＥのトラヒックについて、同じく抽出した組のＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが示す動作を行う。 The operation unit 13 extracts a set of GUMEI and Overload Response in order from the top of the extracted GUMME List. Each time the operation unit 13 extracts a set of GUMMEI and Overload Response, the operation unit 13 performs the operation indicated by the Overload Response of the extracted set for the traffic of the MME indicated by the extracted GUMMEI.

　例えば、動作部１３は、ＭＭＥ５を示すＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１の組を抽出したとする。その場合、動作部１３は、抽出した組のＧＵＭＭＥＩ＃１が示すＭＭＥ５のトラヒックについて、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１が示す動作を行う。同様に、動作部１３は、ＭＭＥ６を示すＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２の組を抽出した場合、抽出した組のＧＵＭＭＥＩ＃２が示すＭＭＥ６のトラヒックについて、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２が示す動作を行う。 For example, it is assumed that the operation unit 13 has extracted a set of GUMME # 1 and Overload Response # 1 indicating MME5. In this case, the operation unit 13 performs the operation indicated by the Overload Response # 1 for the traffic of the MME 5 indicated by the extracted set of GUMME # 1. Similarly, when the combination of GUMME # 2 and Overload Response # 2 indicating MME6 is extracted, the operation unit 13 performs the operation indicated by Overload Response # 2 for the traffic of MME6 indicated by the extracted GUMMEI # 2.

　Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが示す動作は、ＭＭＥへのトラヒックを制限する動作なので、ＨｅＮＢ２の抽出部１２は、ＭＭＥ５、６へのトラヒックを制限する動作を行う。 Since the operation indicated by Overload Response is an operation that restricts traffic to the MME, the extraction unit 12 of the HeNB 2 performs an operation that restricts traffic to the MMEs 5 and 6.

　（６－３－４）動作部１３の機能（一般的な基地局機能）
　さらに、ＨｅＮＢ２、３、４の動作部１３は、一般的な基地局機能を備える。具体的には、ＨｅＮＢ２、３、４の動作部１３は、一般的な端末（図示せず）と無線回線を介して接続する。ＨｅＮＢ２、３、４の動作部１３は、接続する端末からトラヒックを受信する。 (6-3-4) Function of operation unit 13 (general base station function)
Furthermore, the operation units 13 of the HeNBs 2, 3, and 4 have a general base station function. Specifically, the operation units 13 of the HeNBs 2, 3, and 4 are connected to a general terminal (not shown) via a wireless line. The operation units 13 of the HeNBs 2, 3, and 4 receive traffic from connected terminals.

　（６－３－５）動作部１３の機能（転送機能）
　ＨｅＮＢ２、３、４の動作部１３は、接続する端末からトラヒックを受信すると、そのトラヒックを電気信号として抽出部１２に出力する。 (6-3-5) Function of the operation unit 13 (transfer function)
When receiving the traffic from the connected terminal, the operation unit 13 of the HeNBs 2, 3, and 4 outputs the traffic to the extraction unit 12 as an electrical signal.

　［動作の説明］
　図９は、本発明の第１の実施の形態におけるシステムの動作を説明する為の図である。 [Description of operation]
FIG. 9 is a diagram for explaining the operation of the system according to the first embodiment of the present invention.

　以下、図９を用いて、上記機能を用いる本実施形態のシステムの動作について説明を行う。以下では、ＭＭＥ５とＭＭＥ６がほぼ同時に輻輳状態になった場合を例に説明を行う。 Hereinafter, the operation of the system of this embodiment using the above function will be described with reference to FIG. In the following, a case will be described as an example where the MME 5 and the MME 6 become congested almost simultaneously.

　（１）ＭＭＥ５とＭＭＥ６がほぼ同時に輻輳状態になった場合の動作
　（１－１）ＭＭＥ５の動作
　まず、ＭＭＥ５が輻輳状態になったとする。 (1) Operation when MME5 and MME6 are congested almost simultaneously (1-1) Operation of MME5 First, assume that MME5 is congested.

　その場合、ＭＭＥ５は、図９に示されるように、Ｏｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ－ＧＷ１に送信する（Ｓ１）。 In that case, the MME 5 transmits an Overload Start message to the HeNB-GW 1 as shown in FIG. 9 (S1).

　ＭＭＥ５から送信されたＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージには、ＭＭＥ５を示すＧＵＭＭＥＩ（以下、「ＧＵＭＭＥＩ＃１」という）と、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ（以下、「Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１」という）と、が含まれる。Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１は、以下、ＲＲＣ（Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｃｏｎｔｒｏｌ）コネクション確立の拒絶を示すＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅであるものとする。 The Overload Start message transmitted from the MME 5 includes a GUMEI indicating the MME 5 (hereinafter referred to as “GUMMEI # 1”) and an Overload Response (hereinafter referred to as “Overload Response # 1”). The Overload Response # 1 is an Overload Response indicating rejection of establishment of an RRC (Radio Resource Control) connection.

　（１－２）ＭＭＥ６の動作
　続いて、ＭＭＥ６もほぼ同時に輻輳状態になったとする。 (1-2) Operation of MME 6 Subsequently, it is assumed that the MME 6 is also congested almost simultaneously.

　その場合、ＭＭＥ６も、図９に示されるように、Ｏｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ－ＧＷ１に送信する（Ｓ２）。 In that case, the MME 6 also transmits an Overload Start message to the HeNB-GW 1 as shown in FIG. 9 (S2).

　ＭＭＥ６から送信されたＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージには、ＭＭＥ６を示すＧＵＭＭＥＩ（以下、「ＧＵＭＭＥＩ＃２」という）と、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ（以下、「Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２」という）と、が含まれる。Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２は、高優先度のセッションのみを許容することを示すＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅであるものとする。 The Overload Start message transmitted from the MME 6 includes a GUMEI indicating the MME 6 (hereinafter referred to as “GUMMEI # 2”) and an Overload Response (hereinafter referred to as “Overload Response # 2”). Overload Response # 2 is an Overload Response indicating that only a high priority session is allowed.

　（１－３）ＨｅＮＢ－ＧＷ１の呼制御部１０＿１の動作
　ＨｅＮＢ－ＧＷ１の呼制御部１０＿１は、ＭＭＥ５からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。 (1-3) Operation of HeNB-GW1 Call Control Unit 10_1 The HeNB-GW1 call control unit 10_1 receives an Overload Start message from the MME 5.

　呼制御部１０＿１は、ＭＭＥ５からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、図９に示されるように、受信したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージからＧＵＭＭＥＩ＃１と、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１と、を抽出する（Ｓ３）。 When receiving the Overload Start message from the MME 5, the call control unit 10_1 extracts GUMEI # 1 and Overload Response # 1 from the received Overload Start message as shown in FIG. 9 (S3).

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿１は、抽出したＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１をデータ管理部１１（メモリ）に記憶する（Ｓ４）。 Next, the call control unit 10_1 of the HeNB-GW1 stores the extracted GMUMEI # 1 and Overload Response # 1 in the data management unit 11 (memory) (S4).

　その際、呼制御部１０＿１は、抽出したＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１を１組のデータとして記憶する為、それらに、組を示す番号（すなわち組番号）を付与してからデータ管理部１１（メモリ）に記憶する。 At that time, the call control unit 10_1 stores the extracted GUMME # 1 and Overload Response # 1 as one set of data. Therefore, the data management unit 11 assigns a number (that is, a set number) indicating the set to them. Store in (memory).

　組番号は、上述の「（６－１－３）記憶機能」で説明した通り、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎが１組のデータであることを示す番号であり、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎに共通する番号である。組番号は、Ｓ４を実施した時の時刻情報であってもよい。その場合、呼制御部１０＿１は、時計機能を備え、時計機能が出力する時刻情報を組番号とし、その組番号を、抽出したＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ａｃｔｉｏｎに付与する。以下、Ｓ４で付与された組番号を、「組番号＃１」という。 The pair number is a number indicating that the extracted GUMMEI and Overload Action are one set of data as described in “(6-1-3) Storage Function” above, and is common to the extracted GUMMEI and Overload Action. It is a number to do. The group number may be time information when S4 is performed. In that case, the call control unit 10_1 has a clock function, uses the time information output by the clock function as a set number, and assigns the set number to the extracted GUMMEI and Overload Action. Hereinafter, the set number assigned in S4 is referred to as “set number # 1”.

　上述のＳ４の結果、データ管理部１１（メモリ）には、組番号＃１が付与されたＧＵＭＭＥＩ＃１と、組番号＃１が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１と、が記憶される。 As a result of S4 described above, the GUMEI # 1 assigned with the set number # 1 and the Overload Response # 1 assigned with the set number # 1 are stored in the data management unit 11 (memory).

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿１は、動作開始を示す電気信号（以下、「動作開始信号」という）を呼制御部１０＿３に出力する（Ｓ５）。 Next, the call control unit 10_1 of the HeNB-GW1 outputs an electrical signal indicating the operation start (hereinafter referred to as “operation start signal”) to the call control unit 10_3 (S5).

　（１－４）ＨｅＮＢ－ＧＷ１の呼制御部１０＿２の動作
　一方、ＨｅＮＢ－ＧＷ１の呼制御部１０＿２は、ＭＭＥ６からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。 (1-4) Operation of the HeNB-GW1 Call Control Unit 10_2 On the other hand, the HeNB-GW1 call control unit 10_2 receives the Overload Start message from the MME 6.

　ＨｅＮＢ－ＧＷ１の呼制御部１０＿２は、ＭＭＥ６からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、受信したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージからＧＵＭＭＥＩ＃２と、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２と、を抽出する（Ｓ６）。 When receiving the Overload Start message from the MME 6, the call control unit 10_2 of the HeNB-GW 1 extracts GUMME # 2 and Overload Response # 2 from the received Overload Start message (S6).

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿２は、抽出したＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２をデータ管理部１１（メモリ）に記憶する（Ｓ７）。 Next, the call control unit 10_2 of the HeNB-GW1 stores the extracted GMUMEI # 2 and Overload Response # 2 in the data management unit 11 (memory) (S7).

　その際、ＨｅＮＢ－ＧＷ１の呼制御部１０＿２は、抽出したＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２に、各々、組番号（以下、「組番号＃２」という）を付与してからデータ管理部１１（メモリ）に記憶する。 At that time, the call control unit 10_2 of the HeNB-GW 1 assigns a set number (hereinafter referred to as “set number # 2”) to each of the extracted GMUMEI # 2 and Overload Response # 2, and then the data management unit 11 ( Memory).

　上述のＳ７の結果、データ管理部１１（メモリ）には、組番号＃２が付与されたＧＵＭＭＥＩ＃２と、組番号＃２が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２と、が記憶される。 As a result of S7 described above, the GUMEI # 2 assigned with the set number # 2 and the Overload Response # 2 assigned with the set number # 2 are stored in the data management unit 11 (memory).

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿２は、動作開始を示す電気信号（すなわち、動作開始信号）を呼制御部１０＿３に出力する（Ｓ８）。 Next, the call control unit 10_2 of the HeNB-GW1 outputs an electric signal indicating the start of operation (that is, an operation start signal) to the call control unit 10_3 (S8).

　（１－５）ＨｅＮＢ－ＧＷ１の呼制御部１０＿３の動作
　ＨｅＮＢ－ＧＷ１の呼制御部１０＿３には、まず、呼制御部１０＿１から動作開始信号が入力される。 (1-5) Operation of Call Control Unit 10_3 of HeNB-GW1 First, an operation start signal is input from the call control unit 10_1 to the call control unit 10_3 of the HeNB-GW1.

　ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、動作開始信号が入力されると、自身に備わる計時機能（以下、「タイマ」という）を起動し、０秒から時間の計測を開始する（Ｓ９）。 When the operation start signal is input, the call control unit 10_3 of the HeNB-GW1 activates a time measuring function (hereinafter referred to as “timer”) provided therein and starts measuring time from 0 seconds (S9).

　ＭＭＥ５、６からほぼ同時に送信されるＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージのＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが、呼制御部１０＿１と呼制御部１０＿２によって、データ管理部１１（メモリ）に記憶されるのを待つ為である。 This is to wait for the GUMMEI and Overload Response of the Overload Start message transmitted from the MMEs 5 and 6 almost simultaneously to be stored in the data management unit 11 (memory) by the call control unit 10_1 and the call control unit 10_2.

　上述のタイマは、一般的なハードウエアタイマであってもよい。一般的なハードウエアタイマは、マイクロ秒単位で高精度に時間を計測できる。 The above timer may be a general hardware timer. A general hardware timer can measure time with high accuracy in units of microseconds.

　ここで、時間を計測している最中に、呼制御部１０＿２から動作開始信号が入力されたとする。その場合、呼制御部１０＿３は、タイマ起動中であり、上述のＳ９を実施しない。すなわち、呼制御部１０＿３は、時間計測中に呼制御部１０＿２から動作開始信号が入力されても、タイマを再起動しない。呼制御部１０＿３は、時間の計測を継続する。 Here, it is assumed that an operation start signal is input from the call control unit 10_2 while measuring the time. In that case, the call control unit 10_3 is in the process of starting the timer, and does not perform S9 described above. That is, the call control unit 10_3 does not restart the timer even if an operation start signal is input from the call control unit 10_2 during time measurement. The call control unit 10_3 continues to measure time.

　次に、図示していないが、呼制御部１０＿３は、タイマにより計測される時間が所定時間（例えば１ミリ秒）になると、タイマを停止する。 Next, although not shown, the call control unit 10_3 stops the timer when the time measured by the timer reaches a predetermined time (for example, 1 millisecond).

　上述の所定時間は、本実施形態のシステムの管理者によって予め呼制御部１０＿３に設定される。本実施形態のシステムの管理者は、ほぼ同時にＭＭＥ５、６から受信したと考える２つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージの時間差より大きい時間を所定時間として予め呼制御部１０＿３に設定する。 The predetermined time described above is set in advance in the call control unit 10_3 by the system administrator of the present embodiment. The system administrator of the present embodiment sets in advance in the call control unit 10_3 a predetermined time that is greater than the time difference between the two Overload Start messages that are considered to be received from the MMEs 5 and 6 almost simultaneously.

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、タイマを停止すると、図９に示されるように、データ管理部１１（メモリ）に記憶されている情報を全て読み出す（Ｓ１０）。 Next, when the timer is stopped, the call control unit 10_3 of the HeNB-GW1 reads all the information stored in the data management unit 11 (memory) as shown in FIG. 9 (S10).

　具体的には、呼制御部１０＿３は、組番号＃１が付与されたＧＵＭＭＥＩ＃１と、組番号＃１が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１と、を読み出す。さらに、呼制御部１０＿３は、組番号＃２が付与されたＧＵＭＭＥＩ＃２と、組番号＃２が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２と、を読み出す。 Specifically, the call control unit 10_3 reads GUMME # 1 assigned with the set number # 1 and Overload Response # 1 assigned with the set number # 1. Furthermore, the call control unit 10_3 reads GUMMEI # 2 to which the set number # 2 is assigned and Overload Response # 2 to which the set number # 2 is assigned.

　次に、呼制御部１０＿３は、情報を読み出すと、読み出した情報の中で、同じ組番号が付与されているＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを、図５に示されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに設定する（Ｓ１１）。 Next, when the information is read out, the call control unit 10_3 sets GUMMEI and Overload Response to which the same set number is assigned in the read out information in the Overload Start message shown in FIG. 5 (S11).

　具体的には、呼制御部１０＿３は、同じ組番号＃１が付与されているＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１を、図５に示されるＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージのＧＵＭＭＥＩ　Ｌｉｓｔ内に設定する。次に、呼制御部１０＿３は、同じ組番号＃２が付与されているＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２を、図５に示されるＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージのＧＵＭＭＥＩ　Ｌｉｓｔ内に設定する。 Specifically, the call control unit 10_3 sets GUMEI # 1 and Overload Response # 1 to which the same set number # 1 is assigned in the GUMME List of the Overload Start message shown in FIG. Next, the call control unit 10_3 sets GUMEI # 2 and Overload Response # 2 to which the same set number # 2 is assigned in the GUMME List of the Overload Start message shown in FIG.

　上述のＳ１１の動作により、呼制御部１０＿３は、ＧＵＭＭＥＩ毎にＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが設定されたＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを作成する。 By the operation of S11 described above, the call control unit 10_3 creates an Overload Start message in which an Overload Response is set for each GUMMEI.

　次に、呼制御部１０＿３は、上述のＳ１１で作成したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ２、３、４に送信する（Ｓ１２）。 Next, the call control unit 10_3 transmits the Overload Start message created in S11 described above to the HeNBs 2, 3, and 4 (S12).

　（１－６）ＨｅＮＢ２、３、４の動作
　ＨｅＮＢ２、３、４は同じ動作を行うので、以下、代表してＨｅＮＢ２の動作を説明する。 (1-6) Operation of HeNBs 2, 3, and 4 Since HeNBs 2, 3, and 4 perform the same operation, the operation of HeNB 2 will be described below as a representative.

　まず、上述のＳ１２の処理により、ＨｅＮＢ２の抽出部１２は、ＨｅＮＢ－ＧＷ１からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。 First, the extraction unit 12 of the HeNB 2 receives the Overload Start message from the HeNB-GW 1 by the process of S12 described above.

　次に、ＨｅＮＢ２の抽出部１２は、ＨｅＮＢ－ＧＷ１からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、図９に示されるように、受信したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージからＧＵＭＭＥＩ　Ｌｉｓｔを抽出する（Ｓ１３）。 Next, when receiving the Overload Start message from the HeNB-GW 1, the extraction unit 12 of the HeNB 2 extracts a GUMEI List from the received Overload Start message as shown in FIG. 9 (S 13).

　次に、抽出部１２は、図示していないが、抽出したＧＵＭＭＥＩ　Ｌｉｓｔを電気信号として動作部１３に出力する。動作部１３は、入力された電気信号からＧＵＭＭＥＩ　Ｌｉｓｔを抽出する。 Next, although not shown, the extraction unit 12 outputs the extracted GUMMEI List to the operation unit 13 as an electrical signal. The operation unit 13 extracts the GUMMEI List from the input electric signal.

　ＧＵＭＭＥＩ　Ｌｉｓｔには、先頭から順にＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１の組、及びＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２の組が含まれている。 The GUMMEI List includes a set of GUMME # 1 and Overload Response # 1, and a set of GUMMEI # 2 and Overload Response # 2 in order from the top.

　次に、ＨｅＮＢ２の動作部１３は、抽出したＧＵＭＭＥＩ　Ｌｉｓｔに含まれる組毎に、その組のＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅに基づいて、ＭＭＥ５、６へのトラヒックの制限を行う（Ｓ１４）。 Next, the operation unit 13 of the HeNB 2 restricts traffic to the MMEs 5 and 6 for each set included in the extracted GMUMEI List based on the GMUMEI and Overload Response of the set (S14).

　具体的には、ＨｅＮＢ２の動作部１３は、抽出したＧＵＭＭＥＩ　Ｌｉｓｔの先頭から順にＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅの組を抽出する。動作部１３は、ＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅの組を抽出する毎に、抽出した組のＧＵＭＭＥＩが示すＭＭＥのトラヒックについて、同じく抽出した組のＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅが示す動作を行う。 Specifically, the operation unit 13 of the HeNB 2 extracts a set of GMUMEI and Overload Response in order from the top of the extracted GMUMEI List. Each time the operation unit 13 extracts a set of GUMMEI and Overload Response, the operation unit 13 performs the operation indicated by the Overload Response of the extracted set for the traffic of the MME indicated by the extracted GUMMEI.

　すなわち、ＨｅＮＢ２の動作部１３は、ＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１の組を抽出すると、抽出した組のＧＵＭＭＥＩ＃１が示すＭＭＥ５のトラヒックについて、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１が示す動作を行う。同様に、ＨｅＮＢ２の動作部１３は、ＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２の組を抽出すると、抽出した組のＧＵＭＭＥＩ＃２が示すＭＭＥ６のトラヒックについて、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２が示す動作を行う。 That is, when the operation unit 13 of the HeNB2 extracts the set of GUMMEI # 1 and Overload Response # 1, the operation of Overload Response # 1 performs the operation indicated by Overload Response # 1 for the traffic of MME5 indicated by the extracted GUMEI # 1. Similarly, when the operation unit 13 of HeNB2 extracts a set of GUMMEI # 2 and Overload Response # 2, the operation of Overload Response # 2 performs the operation indicated by Overload Response # 2 for the traffic of MME6 indicated by the extracted set of GUMMEI # 2.

　Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１は、ＲＲＣコネクション確立の拒絶を示す情報であるので、ＨｅＮＢ２の動作部１３は、ＭＭＥ５のトラヒックについて、ＲＲＣコネクション確立を拒絶する動作を行う。具体的には、ＨｅＮＢ２の動作部１３は、ＭＭＥ５のトラヒックのうち、ＲＲＣコネクション確立に係るトラヒックについて拒絶する動作を行う。 Since Overload Response # 1 is information indicating rejection of establishment of the RRC connection, the operation unit 13 of the HeNB 2 performs an operation of rejecting establishment of the RRC connection for the traffic of the MME 5. Specifically, the operation unit 13 of the HeNB 2 performs an operation of rejecting traffic related to RRC connection establishment among the traffic of the MME 5.

　同様に、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２が高優先度のセッションのみを許容することを示す情報であるので、動作部１３は、ＭＭＥ６のトラヒックについて、高優先度のセッションに係るトラヒック以外は受け付けない動作を行う。 Similarly, since Overload Response # 2 is information indicating that only a high priority session is permitted, the operation unit 13 performs an operation that accepts only the traffic related to the high priority session for the MME6 traffic. .

　上述の各動作は、ＭＭＥ５、６へのトラヒックを制限する動作である。その為、上述のＳ１４の処理で、動作部１３は、ＭＭＥ５、６毎に、該ＭＭＥへのトラヒックを制限する。その結果、ＭＭＥ５、６へのトラヒックが少なくなり、ＭＭＥ５、６の輻輳状態が解消する。なお、上述の「拒絶する動作」とは、拒否する動作、すなわち、受信しない動作を意味する。上述の「受信しない動作」とは、破棄する動作であってもよい。 Each operation described above is an operation that restricts traffic to the MMEs 5 and 6. For this reason, the operation unit 13 limits the traffic to the MME for each of the MMEs 5 and 6 in the process of S14 described above. As a result, the traffic to the MMEs 5 and 6 is reduced, and the congestion state of the MMEs 5 and 6 is eliminated. The “rejecting operation” described above means an operation of rejecting, that is, an operation of not receiving. The above-mentioned “operation not receiving” may be an operation of discarding.

　上述に説明した通り、ＨｅＮＢ－ＧＷ１は、Ｓ３～Ｓ１２の処理により、ＧＵＭＭＥＩ毎にＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを含む、１つのＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ２に送信する。それにより、ＨｅＮＢ－ＧＷ１は、ＭＭＥ５、６毎に異なる動作をＨｅＮＢ２に行わせ、ＭＭＥ５、６の輻輳状態を解消することができる。すなわち、ＨｅＮＢ－ＧＷ１は、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に異なる輻輳制御を行うことができる。 As described above, the HeNB-GW 1 transmits one Overload Start message including an Overload Response for each GUMMEI to the HeNB 2 by the processes of S3 to S12. As a result, the HeNB-GW 1 can cause the HeNB 2 to perform different operations for each of the MMEs 5 and 6, and can eliminate the congestion state of the MMEs 5 and 6. That is, the HeNB-GW 1 can perform different congestion control for each MME with a single Overload Start message.

　本実施形態のシステムは、以下の「（２）バリエーション動作」および「（３）バリエーション動作」で説明する動作を行ってもよい。本実施形態のシステムは、以下の「（４）他の構成例」で説明する動作を行ってもよい。 The system of the present embodiment may perform the operations described in “(2) Variation operation” and “(3) Variation operation” below. The system of the present embodiment may perform the operations described in “(4) Other configuration examples” below.

　以下の「（２）バリエーション動作」では、上述の［動作の説明］で説明した、トラヒックを制限する動作を解除する動作について説明する。以下の「（３）バリエーション動作」では、上述の［動作の説明］で説明した所定時間の値が０である場合の動作について説明する。以下の「（４）他の構成例」では、本実施形態のシステムの他の構成例について記載する。 In the following “(2) Variation operation”, the operation for releasing the operation for restricting the traffic described in [Description of operation] will be described. In the following “(3) Variation operation”, an operation in the case where the value of the predetermined time described in [Description of operation] is 0 will be described. In the following “(4) Other configuration examples”, other configuration examples of the system of the present embodiment will be described.

　（２）バリエーション動作（トラヒックを制限する動作を解除する動作）
　上記では、トラヒックを制限する動作について説明を行ったが、以下では、その動作を解除する動作について説明する。図１０は、本発明の第１の実施の形態におけるシステムの動作（トラヒックを制限する動作を解除する動作）を説明する為の図である。 (2) Variation operation (operation to cancel the operation that restricts traffic)
The operation for restricting traffic has been described above, but the operation for canceling the operation will be described below. FIG. 10 is a diagram for explaining the operation of the system (operation for releasing the operation for restricting traffic) in the first exemplary embodiment of the present invention.

　（２－１）Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージについて
　まず、ＭＭＥ５、６は、３ＧＰＰの規定に従って動作しており、輻輳状態が解消した場合には、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを送信するものとする。 (2-1) Overload Stop Message First, the MMEs 5 and 6 operate according to the 3GPP rules, and transmit an Overload Stop message when the congestion state is resolved.

　Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージは、輻輳状態が解消されたことを示すメッセージである。Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージには、ＭＭＥを示すＧＵＭＭＥＩが含まれる。 The Overload Stop message is a message indicating that the congestion state has been resolved. The Overload Stop message includes GUMMEI indicating MME.

　（２－２）ＭＭＥ５の輻輳状態が解消した場合
　以下、ＭＭＥ５の輻輳状態が解消したとする。 (2-2) When the congestion state of the MME 5 is resolved Hereinafter, it is assumed that the congestion state of the MME 5 is resolved.

　その場合、ＭＭＥ５は、図１０に示されるように、Ｏｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ－ＧＷ１に送信する（Ｓ２０）。 In that case, the MME 5 transmits an Overload Stop message to the HeNB-GW 1 as shown in FIG. 10 (S20).

　Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージには、ＭＭＥ５を示すＧＵＭＭＥＩ＃１が含まれている。 The Overload Stop message includes GUMME # 1 indicating MME5.

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿１は、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、受信したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージからＧＵＭＭＥＩ＃１を抽出する（Ｓ２１）。 Next, when receiving the Overload Stop message, the call control unit 10_1 of the HeNB-GW1 extracts GUMME # 1 from the received Overload Stop message (S21).

　次に、呼制御部１０＿１は、抽出したＧＵＭＭＥＩ＃１に係る情報をデータ管理部１１（メモリ）から削除する（Ｓ２２）。 Next, the call control unit 10_1 deletes the extracted information related to GUMMEI # 1 from the data management unit 11 (memory) (S22).

　具体的には、呼制御部１０＿１は、抽出したＧＵＭＭＥＩ＃１を含む組番号＃１が付与されたＧＵＭＭＥＩ＃１と、該ＧＵＭＭＥＩ＃１と同様に組番号＃１が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１と、をデータ管理部１１（メモリ）から削除する。 Specifically, the call control unit 10_1 includes the GUMME # 1 to which the set number # 1 including the extracted GUMMEI # 1 is assigned, and the Overload Response # 1 to which the set number # 1 is assigned in the same manner as the GUMMEI # 1. Are deleted from the data management unit 11 (memory).

　次に、呼制御部１０＿１は、受信したＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを電気信号（以下、「電気信号Ｃ」という）として呼制御部１０＿３に出力する（Ｓ２３）。電気信号Ｃは、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを示すパルス信号を含む電気信号である。 Next, the call control unit 10_1 outputs the received Overload Stop message to the call control unit 10_3 as an electric signal (hereinafter, referred to as “electric signal C”) (S23). The electric signal C is an electric signal including a pulse signal indicating an Overload Stop message.

　次に、図示していないが、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、電気信号Ｃを受信すると、受信した電気信号ＣからＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを抽出する。 Next, although not shown, when receiving the electrical signal C, the call control unit 10_3 of the HeNB-GW 1 extracts an Overload Stop message from the received electrical signal C.

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、図１０に示されるように、抽出したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ２、３、４に送信する（Ｓ２４）。 Next, the call control unit 10_3 of the HeNB-GW1 transmits the extracted Overload Stop message to the HeNBs 2, 3, and 4 as illustrated in FIG. 10 (S24).

　次に、ＨｅＮＢ２、３、４は、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、受信したメッセージからＧＵＭＭＥＩ＃１を抽出する（Ｓ２５）。 Next, when receiving the Overload Stop message, the HeNBs 2, 3, and 4 extract GUMME # 1 from the received message (S25).

　次に、ＨｅＮＢ２、３、４は、抽出したＧＵＭＭＥＩ＃１が示すＭＭＥ５のトラヒックを制限する動作を解除する（Ｓ２６）。 Next, the HeNBs 2, 3, and 4 release the operation for limiting the traffic of the MME 5 indicated by the extracted GUMMEI # 1 (S26).

　具体的には、ＨｅＮＢ２、３、４は、抽出したＧＵＭＭＥＩ＃１が示すＭＭＥ５のトラヒックについて行っている、ＲＲＣコネクション確立(に係るトラヒック)を拒絶する動作を停止する。ＨｅＮＢ２、３、４は、ＭＭＥ５のトラヒックを全て受信する。すなわち、ＨｅＮＢ２、３、４は、Ｓ１３、Ｓ１４を行う前の状態に戻る。 Specifically, the HeNBs 2, 3, and 4 stop the operation for rejecting the RRC connection establishment (related traffic), which is performed for the traffic of the MME 5 indicated by the extracted GUMMEI # 1. The HeNBs 2, 3, and 4 receive all the traffic of the MME 5. That is, the HeNBs 2, 3, and 4 return to the state before performing S13 and S14.

　ＨｅＮＢ－ＧＷ１は、上述のＳ２１～Ｓ２４の処理を行うことで、ＨｅＮＢ２、３、４に上述のＳ２５、Ｓ２６の処理を行わせ、ＭＭＥ５のトラヒックを制限する動作を解除することができる。 The HeNB-GW 1 can cancel the operation of limiting the traffic of the MME 5 by causing the HeNBs 2, 3, and 4 to perform the above-described processes S25 and S26 by performing the above-described processes S21 to S24.

　（２－３）ＭＭＥ６の輻輳状態が解消した場合
　次に、ＭＭＥ６の輻輳状態が解消したとする。この場合、ＨｅＮＢ－ＧＷ１とＨｅＮＢ２、３、４は、上述の「（２－２）ＭＭＥ５の輻輳状態が解消した場合」で説明した動作と同じ動作を行う。異なるのは、処理する機能部が呼制御部１０＿１ではなく呼制御部１０＿２である点、使用するＧＵＭＭＥＩ＃１がＧＵＭＭＥＩ＃２である点である。 (2-3) When the congestion state of the MME 6 is resolved Next, it is assumed that the congestion state of the MME 6 is resolved. In this case, the HeNB-GW 1 and the HeNBs 2, 3 and 4 perform the same operation as described above in “(2-2) When the congestion state of the MME 5 is resolved”. The difference is that the functional unit to be processed is not the call control unit 10_1 but the call control unit 10_2, and the GUMME # 1 to be used is GUMMEI # 2.

　詳細は以下の通りである。 Details are as follows.

　まず、ＭＭＥ６は、自身の輻輳状態が解消した場合は、図１０に示されるように、Ｏｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ－ＧＷ１に送信する（Ｓ２７）。 First, when the congestion state of the MME 6 is resolved, the MME 6 transmits an Overload Stop message to the HeNB-GW 1 as shown in FIG. 10 (S27).

　Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージには、ＭＭＥ６を示すＧＵＭＭＥＩ＃２が含まれている。 The Overload Stop message includes GUMME # 2 indicating MME6.

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿２は、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、受信したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージからＧＵＭＭＥＩ＃２を抽出する（Ｓ２８）。 Next, when receiving the Overload Stop message, the call control unit 10_2 of the HeNB-GW1 extracts GUMME # 2 from the received Overload Stop message (S28).

　次に、呼制御部１０＿２は、抽出したＧＵＭＭＥＩ＃２に係る情報をデータ管理部１１（メモリ）から削除する（Ｓ２９）。 Next, the call control unit 10_2 deletes the extracted information related to GUMMEI # 2 from the data management unit 11 (memory) (S29).

　具体的には、呼制御部１０＿２は、抽出したＧＵＭＭＥＩ＃２を含む組番号＃２が付与されたＧＵＭＭＥＩ＃２と、該ＧＵＭＭＥＩ＃２と同様に組番号＃２が付与されたＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２と、をデータ管理部１１（メモリ）から削除する。 Specifically, the call control unit 10_2 includes GUMME # 2 to which the set number # 2 including the extracted GUMMEI # 2 is assigned, and Overload Response # 2 to which the set number # 2 is assigned in the same manner as the GUMMEI # 2. Are deleted from the data management unit 11 (memory).

　次に、呼制御部１０＿２は、受信したＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを電気信号Ｃとして呼制御部１０＿３に出力する（Ｓ３０）。 Next, the call control unit 10_2 outputs the received Overload Stop message as an electric signal C to the call control unit 10_3 (S30).

　次に、図示していないが、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、電気信号Ｃを受信すると、受信した電気信号ＣからＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを抽出する。 Next, although not shown, when receiving the electrical signal C, the call control unit 10_3 of the HeNB-GW 1 extracts an Overload Stop message from the received electrical signal C.

　次に、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、図１０に示されるように、抽出したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ２、３、４に送信する（Ｓ３１）。 Next, the call control unit 10_3 of the HeNB-GW1 transmits the extracted Overload Stop message to the HeNBs 2, 3, and 4 as illustrated in FIG. 10 (S31).

　次に、ＨｅＮＢ２、３、４は、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、受信したメッセージからＧＵＭＭＥＩ＃２を抽出する（Ｓ３２）。 Next, when receiving the Overload Stop message, the HeNBs 2, 3, and 4 extract GUMME # 2 from the received message (S32).

　次に、ＨｅＮＢ２、３、４は、抽出したＧＵＭＭＥＩ＃２が示すＭＭＥ６のトラヒックを制限する動作を解除する（Ｓ３３）。 Next, the HeNBs 2, 3, and 4 release the operation of limiting the traffic of the MME 6 indicated by the extracted GUMMEI # 2 (S33).

　具体的には、ＨｅＮＢ２、３、４は、抽出したＧＵＭＭＥＩ＃２が示すＭＭＥ６のトラヒックについて行っている、高優先度のセッションに係るトラヒック以外は受け付けない動作を停止する。ＨｅＮＢ２、３、４は、ＭＭＥ６のトラヒックを全て受信する。すなわち、ＨｅＮＢ２、３、４は、Ｓ１３、Ｓ１４を行う前の状態に戻る。 Specifically, the HeNBs 2, 3, and 4 stop the operations that are not accepted except the traffic related to the high-priority session, which is performed for the traffic of the MME 6 indicated by the extracted GUMMEI # 2. The HeNBs 2, 3, and 4 receive all the traffic of the MME 6. That is, the HeNBs 2, 3, and 4 return to the state before performing S13 and S14.

　ＨｅＮＢ－ＧＷ１は、上述のＳ２８～Ｓ３１の処理を行うことで、ＨｅＮＢ２、３、４に上述のＳ３２、Ｓ３３の処理を行わせ、ＭＭＥ６のトラヒックを制限する動作を解除することができる。 The HeNB-GW 1 can cancel the operation of restricting the traffic of the MME 6 by causing the HeNBs 2, 3, and 4 to perform the above-described processes S32 and S33 by performing the above-described processes S28 to S31.

　（３）バリエーション動作（所定時間を０にした場合の動作）
　上記では、所定時間（例えば１ミリ秒）が、本実施形態のシステムの管理者によって予め呼制御部１０＿３に設定された。本実施形態のシステムの管理者は、所定時間として０秒を設定してもよい。 (3) Variation operation (operation when the predetermined time is 0)
In the above, a predetermined time (for example, 1 millisecond) is set in advance in the call control unit 10_3 by the system administrator of the present embodiment. The administrator of the system of the present embodiment may set 0 seconds as the predetermined time.

　その場合、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、動作開始信号が入力されると、上述のＳ９の処理を実施することなく、その次のＳ１０～Ｓ１２の処理を行う。 In that case, when the operation start signal is input, the call control unit 10_3 of the HeNB-GW1 performs the next processing of S10 to S12 without performing the processing of S9 described above.

　すなわち、ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、呼制御部１０＿１と呼制御部１０＿２によりＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ等がデータ管理部１１（メモリ）に記憶されるのを待たない。その為、ＨｅＮＢ－ＧＷ１は、ＭＭＥ５からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、ＧＵＭＭＥＩ＃１とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１を含むＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを送信する。さらに、ＨｅＮＢ－ＧＷ１は、ＭＭＥ６からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、ＧＵＭＭＥＩ＃２とＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２を含むＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを送信する。 That is, the call control unit 10_3 of the HeNB-GW 1 does not wait for the Overload Response or the like to be stored in the data management unit 11 (memory) by the call control unit 10_1 and the call control unit 10_2. Therefore, when the HeNB-GW1 receives an Overload Start message from the MME 5, the HeNB-GW 1 transmits an Overload Start message including GUMME # 1 and Overload Response # 1. Further, when the HeNB-GW1 receives the Overload Start message from the MME 6, the HeNB-GW 1 transmits an Overload Start message including GUMME # 2 and Overload Response # 2.

　ＨｅＮＢ－ＧＷ１の呼制御部１０＿３は、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを２度送信することになるが、ＭＭＥ５、６から通知されたＧＵＭＭＥＩとＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを速やかにＨｅＮＢ２、３、４に送信することができる。 The call control unit 10_3 of the HeNB-GW1 transmits the Overload Start message twice, but can promptly transmit the GMUMEI and Overload Response notified from the MMEs 5 and 6 to the HeNBs 2, 3, and 4.

　（４）他の構成例
　上記では、ＨｅＮＢ－ＧＷ１は、３台のＨｅＮＢ２、３、４と、２台のＭＭＥ５、６と、に接続されたが、これに限らない。 (4) Other Configuration Examples In the above, the HeNB-GW 1 is connected to the three HeNBs 2, 3, and 4 and the two MMEs 5 and 6, but is not limited thereto.

　すなわち、ＨｅＮＢ－ＧＷ１は、１台のＨｅＮＢに接続されてもよいし、２台のＨｅＮＢに接続されてもよい。ＨｅＮＢ－ＧＷ１は、４台以上のＨｅＮＢに接続されてもよい。その場合、ＨｅＮＢ－ＧＷ１は、上述のＳ１２において、接続されたＨｅＮＢそれぞれに、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを送信する。また、ＨｅＮＢ－ＧＷ１は、上述のＳ２４、Ｓ３１において、接続されたＨｅＮＢそれぞれに、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを送信する。 That is, the HeNB-GW1 may be connected to one HeNB or may be connected to two HeNBs. The HeNB-GW1 may be connected to four or more HeNBs. In this case, the HeNB-GW 1 transmits an Overload Start message to each connected HeNB in S12 described above. Also, the HeNB-GW 1 transmits an Overload Stop message to each connected HeNB in the above-described S24 and S31.

　また、ＨｅＮＢ－ＧＷ１は、３台以上のＭＭＥに接続されてもよい。その場合、ＨｅＮＢ－ＧＷ１は、各ＭＭＥに接続する呼制御部を備える。各呼制御部は、データ管理部１１（メモリ）に接続する。各呼制御部は、それぞれ呼制御部１０＿１と同じ動作を行う。 Also, the HeNB-GW 1 may be connected to three or more MMEs. In that case, the HeNB-GW1 includes a call control unit connected to each MME. Each call control unit is connected to the data management unit 11 (memory). Each call control unit performs the same operation as the call control unit 10_1.

　［効果の説明］
　本実施形態によれば、ＨｅＮＢ－ＧＷは、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に異なる輻輳制御を行うことができる。 [Description of effects]
According to the present embodiment, the HeNB-GW can perform different congestion control for each MME with one Overload Start message.

　なぜなら、ＨｅＮＢ－ＧＷは、ＧＵＭＭＥＩ毎（ＭＭＥ毎）にＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅを１つのメッセージに設定してＨｅＮＢに送信し、ＨｅＮＢに、そのメッセージに基づいてＭＭＥ毎にトラヒックを制限する動作を実施させるからである。 This is because the HeNB-GW sets an Overload Response to one message for each GUMMEI (each MME) and transmits it to the HeNB, and causes the HeNB to perform an operation to limit traffic for each MME based on the message. is there.

　≪第２の実施の形態≫
　次に、本発明の第２の実施の形態について説明する。図１１は、本発明の第２の実施の形態におけるシステムが使用するＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージの構成例を示す図である。 << Second Embodiment >>
Next, a second embodiment of the present invention will be described. FIG. 11 is a diagram illustrating a configuration example of an Overload Start message used by the system according to the second embodiment of the present invention.

　［概要］
　第２の実施形態のシステムのＨｅＮＢ－ＧＷは、図１１に示されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを用い、ＧＵＭＭＥＩ毎（ＭＭＥ毎）にＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　ＩｎｄｉｃａｔｉｏｎをＨｅＮＢに送信する。Ｔｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎは、着信規制率を示す情報要素である。ＨｅＮＢは、当該情報要素を用いて、ＭＭＥ毎に着信規制を行う。その結果、第２の実施形態のシステムのＨｅＮＢ－ＧＷは、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に着信規制による輻輳制御を行うことができる。 [Overview]
The HeNB-GW of the system according to the second embodiment uses the Overload Start message illustrated in FIG. 11 and transmits Traffic Load Reduction Indication to the HeNB for each GUMMEI (for each MME). The Traffic Load Reduction Indication is an information element indicating an incoming call restriction rate. The HeNB performs incoming call restriction for each MME using the information element. As a result, the HeNB-GW of the system according to the second embodiment can perform congestion control based on incoming call restriction for each MME with a single Overload Start message.

　以下に、第２の実施の形態のシステムの構成と動作について説明する。 Hereinafter, the configuration and operation of the system according to the second embodiment will be described.

　［構成の説明］
　図１２は、本発明の第２の実施の形態におけるシステムの構成例を示す図である。図１３は、本発明の第２の実施の形態におけるシステムに備わるＨｅＮＢ－ＧＷ２１の構成例を示す図である。図１４は、本発明の第２の実施の形態におけるシステムに備わるＨｅＮＢ２２の構成例を示す図である。 [Description of configuration]
FIG. 12 is a diagram illustrating a configuration example of a system according to the second embodiment of the present invention. FIG. 13 is a diagram illustrating a configuration example of the HeNB-GW 21 included in the system according to the second embodiment of the present invention. FIG. 14 is a diagram illustrating a configuration example of the HeNB 22 included in the system according to the second embodiment of the present invention.

　（１）第２の実施形態のシステムの構成
　第２の実施形態のシステムは、図１２に示されるように、ＨｅＮＢ－ＧＷ２１と、ＨｅＮＢ２２、２３、２４と、ＭＭＥ２５、２６と、を備える。 (1) Configuration of System of Second Embodiment As shown in FIG. 12, the system of the second embodiment includes a HeNB-GW 21, HeNBs 22, 23, and 24, and MMEs 25 and 26.

　ＨｅＮＢ－ＧＷ２１は、図１３に示されるように、呼制御部１０＿１～１０＿３の代わりに、呼制御部２１０＿１～２１０＿３を備える。 As illustrated in FIG. 13, the HeNB-GW 21 includes call control units 210_1 to 210_3 instead of the call control units 10_1 to 10_3.

　ＨｅＮＢ２２は、図１４に示されるように、動作部１３の代わりに、動作部２１３を備える。ＨｅＮＢ２３とＨｅＮＢ２４は、ＨｅＮＢ２２と同じ構成であり、図示していないが、動作部１３の代わりに、動作部２１３を備える。 As shown in FIG. 14, the HeNB 22 includes an operation unit 213 instead of the operation unit 13. The HeNB 23 and the HeNB 24 have the same configuration as that of the HeNB 22 and are not shown, but include an operation unit 213 instead of the operation unit 13.

　（２）ＭＭＥ２５、２６の機能について
　ＭＭＥ２５、２６は、輻輳状態となると、３ＧＰＰの規定に従い、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを送信する。その際、ＭＭＥ２５、２６は、Ｏｖｅｒｌｏａｄ　ＳｔａｒｔメッセージにＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを含めて送信する。 (2) Functions of the MMEs 25 and 26 When the MMEs 25 and 26 are in a congestion state, the MMEs 25 and 26 transmit an Overload Start message according to the 3GPP rules. At that time, the MMEs 25 and 26 transmit the Overload Start message including the Traffic Load Reduction Indication.

　Ｔｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎは、着信規制率、すなわち、着信するトラヒックの何パーセントをＨｅＮＢが拒絶するかを示す情報要素である。値が１０のＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎは、着信するトラヒックのうち、１０パーセントのトラヒックをＨｅＮＢが拒絶することを示す。Ｔｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎは、拒絶するトラヒックの割合を示す情報要素である。上述の「拒絶する」とは、受信を拒否することを意味する。「受信を拒否する」とは、受信したトラヒックについて破棄することであってもよい。 The Traffic Load Reduction Indication is an information element indicating an incoming call restriction rate, that is, what percentage of incoming traffic is rejected by the HeNB. A Traffic Load Reduction Indication with a value of 10 indicates that the HeNB rejects 10% of the incoming traffic. Traffic Load Reduction Indication is an information element indicating the percentage of traffic to be rejected. The above-mentioned “reject” means that reception is rejected. “Reject reception” may be to discard the received traffic.

　（３）ＨｅＮＢ－ＧＷ２１の機能（呼制御部２１０＿１、２１０＿２の機能）
　ＨｅＮＢ－ＧＷ２１の呼制御部２１０＿１と呼制御部２１０＿２は、以下の機能を備える。上述のＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎは、以下、「Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ」というものとする。 (3) Functions of HeNB-GW21 (functions of call control units 210_1 and 210_2)
The call control unit 210_1 and the call control unit 210_2 of the HeNB-GW 21 have the following functions. The above-described Traffic Load Reduction Indication is hereinafter referred to as “Reduction Indication”.

　（３－１）抽出機能（呼制御部２１０＿１、２１０＿２の機能）
　呼制御部２１０＿１と呼制御部２１０＿２は、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージから、ＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを抽出する。 (3-1) Extraction function (functions of call control units 210_1 and 210_2)
The call control unit 210_1 and the call control unit 210_2 extract GUMMEI, Overload Response, and Reduction Indication from the received Overload Start message.

　（３－２）記憶機能（呼制御部２１０＿１、２１０＿２の機能）
　呼制御部２１０＿１と呼制御部２１０＿２は、抽出したＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎをデータ管理部１１（メモリ）に記憶する。記憶の際、呼制御部２１０＿１と呼制御部２１０＿２は、抽出した情報各々に組番号を付与してからデータ管理部１１（メモリ）に記憶する。抽出した情報を１組のデータとして記憶する為である。 (3-2) Storage function (functions of call control units 210_1 and 210_2)
The call control unit 210_1 and the call control unit 210_2 store the extracted GUMMEI, Overload Response, and Reduction Indication in the data management unit 11 (memory). At the time of storage, the call control unit 210_1 and the call control unit 210_2 assign a set number to each piece of extracted information, and then store it in the data management unit 11 (memory). This is because the extracted information is stored as a set of data.

　（３－３）読出機能（呼制御部２１０＿３の機能）
　呼制御部２１０＿３は、タイマ停止後、データ管理部１１（メモリ）に記憶されている情報（組番号が付与されたＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ）を全て読み出す。 (3-3) Read function (function of call control unit 210_3)
After the timer is stopped, the call control unit 210_3 reads all the information stored in the data management unit 11 (memory) (GUMMEI, Overload Response, and Reduction Indication to which the set number is assigned).

　（３－４）メッセージ作成機能（呼制御部２１０＿３の機能）
　呼制御部２１０＿３は、読み出した情報の中で、同じ組番号が付与されているＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ及びＲｅｄｕｃｔｉｏｎ　ＩｎｄｉｃａｔｉｏｎをＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージのＧＵＭＭＥＩ　Ｌｉｓｔに設定する。 (3-4) Message creation function (function of call control unit 210_3)
In the read information, the call control unit 210_3 sets GUMME, Overload Response, and Reduction Indication to which the same set number is assigned in the GUMME List of the Overload Start message.

　（４）ＨｅＮＢ２２、２３、２４の機能
　ＨｅＮＢ２２、２３、２４の動作部２１３は、抽出したＧＵＭＭＥＩ　Ｌｉｓｔの先頭から順にＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎの組を抽出する。動作部２１３は、抽出した組毎に、該組のＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎに基づいて着信規制を行う。着信規制の具体的な手順は、後述の［動作の説明］で詳細に説明する。 (4) Functions of HeNBs 22, 23, and 24 The operation unit 213 of the HeNBs 22, 23, and 24 extracts a set of GUMMEI, Overload Response, and Reduction Indication in order from the top of the extracted GUMMEI List. The operation unit 213 performs incoming call restriction for each extracted set based on the reduction indication of the set. The specific procedure of incoming call restriction will be described in detail in [Description of operation] described later.

　上述した以外の構成及び機能は、第１の実施形態におけるシステムと同じであるので、同一の符号を付して説明を省略する。 Since the configuration and functions other than those described above are the same as those of the system in the first embodiment, the same reference numerals are given and description thereof is omitted.

　［動作の説明］
　本実施形態のシステムの動作を説明する。図１５は、本発明の第２の実施の形態におけるシステムの動作を説明する為の図である。図１５を用いて、本実施形態のシステムの動作を以下に説明する。 [Description of operation]
The operation of the system of this embodiment will be described. FIG. 15 is a diagram for explaining the operation of the system according to the second embodiment of the present invention. The operation of the system of this embodiment will be described below using FIG.

　（１）ＭＭＥ２５、２６の動作
　まず、ＭＭＥ２５、２６がほぼ同時に輻輳状態になったとする。その場合、輻輳状態となったＭＭＥ２５、２６は、各々、Ｏｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ－ＧＷ２１に送信する（Ｓ４０、Ｓ４１）。 (1) Operation of MMEs 25 and 26 First, it is assumed that the MMEs 25 and 26 become congested almost simultaneously. In that case, the MMEs 25 and 26 that have entered the congestion state each transmit an Overload Start message to the HeNB-GW 21 (S40 and S41).

　この時、ＭＭＥ２５、２６は、Ｏｖｅｒｌｏａｄ　ＳｔａｒｔメッセージにＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを含めて送信する。 At this time, the MMEs 25 and 26 transmit the Overload Start message including the Traffic Load Reduction Indication.

　Ｔｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ(以下、「Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ」という)は、着信するトラヒックのうち、何パーセントをＨｅＮＢが拒絶するかを示す情報要素である。 The Traffic Load Reduction Indication (hereinafter referred to as “Reduction Indication”) is an information element indicating what percentage of incoming traffic the HeNB rejects.

　ＭＭＥ２５から送信されたＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに含まれるＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎは、以下、「Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１」という。同様に、ＭＭＥ２６から送信されたＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに含まれるＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを、以下、「Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２」という。 The Reduction Indication included in the Overload Start message transmitted from the MME 25 is hereinafter referred to as “Reduction Indication # 1”. Similarly, the Reduction Indication included in the Overload Start message transmitted from the MME 26 is hereinafter referred to as “Reduction Indication # 2”.

　（２）ＨｅＮＢ－ＧＷ２１の動作（呼制御部２１０＿１の動作）
　ＨｅＮＢ－ＧＷ２１の呼制御部２１０＿１は、ＭＭＥ２５からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージから受信する。 (2) Operation of HeNB-GW 21 (operation of call control unit 210_1)
The call control unit 210_1 of the HeNB-GW 21 receives from the Overload Start message from the MME 25.

　呼制御部２１０＿１は、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージから、ＧＵＭＭＥＩ＃１、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１を抽出する（Ｓ４３）。 The call control unit 210_1 extracts GUMMEI # 1, Overload Response # 1, and Reduction Indication # 1 from the received Overload Start message (S43).

　次に、呼制御部２１０＿１は、抽出したＧＵＭＭＥＩ＃１、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１をデータ管理部１１（メモリ）に記憶する（Ｓ４４）。 Next, the call control unit 210_1 stores the extracted GUMME # 1, Overload Response # 1, and Reduction Indication # 1 in the data management unit 11 (memory) (S44).

　その際、呼制御部２１０＿１は、抽出した情報を１組のデータとして記憶する為、それらに組番号（以下、「組番号＃１」という）を付与してからデータ管理部１１（メモリ）に記憶する。 At that time, since the call control unit 210_1 stores the extracted information as a set of data, the call control unit 210_1 assigns a set number (hereinafter referred to as “set number # 1”) to the data management unit 11 (memory). Remember.

　（３）ＨｅＮＢ－ＧＷ２１の動作（呼制御部２１０＿２の動作）
　ＨｅＮＢ－ＧＷ２１の呼制御部２１０＿２は、ＭＭＥ２６からＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージから受信する。 (3) Operation of HeNB-GW 21 (operation of call control unit 210_2)
The call control unit 210_2 of the HeNB-GW 21 receives from the Overload Start message from the MME 26.

　ＨｅＮＢ－ＧＷ２１の呼制御部２１０＿２は、呼制御部２１０＿１と同じ処理を行う。 The call control unit 210_2 of the HeNB-GW 21 performs the same processing as the call control unit 210_1.

　すなわち、ＨｅＮＢ－ＧＷ２１の呼制御部２１０＿２は、受信したＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージから、ＧＵＭＭＥＩ＃２、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２を抽出する（Ｓ４５）。 That is, the call control unit 210_2 of the HeNB-GW 21 extracts GUMME # 2, Overload Response # 2, and Reduction Indication # 2 from the received Overload Start message (S45).

　次に、呼制御部２１０＿２は、抽出したＧＵＭＭＥＩ＃２、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２をデータ管理部１１（メモリ）に記憶する（Ｓ４６）。 Next, the call control unit 210_2 stores the extracted GUMME # 2, Overload Response # 2, and Reduction Indication # 2 in the data management unit 11 (memory) (S46).

　その際、呼制御部２１０＿２は、抽出した情報を１組のデータとして記憶する為、それらに組番号（以下、「組番号＃２」という）を付与してからデータ管理部１１（メモリ）に記憶する。 At this time, the call control unit 210_2 stores the extracted information as a set of data, and therefore assigns a set number (hereinafter referred to as “set number # 2”) to the data management unit 11 (memory). Remember.

　（４）ＨｅＮＢ－ＧＷ２１の動作（呼制御部２１０＿３の動作）
　次に、呼制御部２１０＿３は、上述のＳ９の処理を行い、さらに、タイマを停止すると、データ管理部１１（メモリ）に記憶されている情報を全て読み出す（Ｓ４７）。 (4) Operation of HeNB-GW 21 (operation of call control unit 210_3)
Next, the call control unit 210_3 performs the process of S9 described above, and when the timer is stopped, reads all the information stored in the data management unit 11 (memory) (S47).

　読み出される情報は、ＧＵＭＭＥＩ＃１、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１の組と、ＧＵＭＭＥＩ＃２、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２、及びＩｎｄｉｃａｔｉｏｎ＃２の組である。Ｉｎｄｉｃａｔｉｏｎ＃２は、Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２のことである。ＧＵＭＭＥＩ＃１、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１には、それぞれ組番号＃１が付与されている。同様に、ＧＵＭＭＥＩ＃２、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２にも、それぞれ組番号＃２が付与されている。 The information to be read out is a set of GUMME # 1, Overload Response # 1, and Reduction Indication # 1, and a set of GUMME # 2, Overload Response # 2, and Indication # 2. Indication # 2 is Reduction Indication # 2. A set number # 1 is assigned to each of GUMMEI # 1, Overload Response # 1, and Reduction Indication # 1. Similarly, the set number # 2 is assigned to GUMME # 2, Overload Response # 2, and Reduction Indication # 2, respectively.

　呼制御部２１０＿３は、読み出した情報の中で、同じ組番号が付与されているＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを図１１に示すＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージに設定する（Ｓ４８）。 In the read information, the call control unit 210_3 sets GUMME, Overload Response, and Reduction Indication to which the same set number is assigned in the Overload Start message shown in FIG. 11 (S48).

　具体的には、呼制御部２１０＿３は、組番号＃１が付与されているＧＵＭＭＥＩ＃１、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１を、図１１に示すメッセージのＧＵＭＭＥＩ　Ｌｉｓｔ内に設定する。さらに、呼制御部２１０＿３は、組番号＃２が付与されているＧＵＭＭＥＩ＃２、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２、及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２を、図１１に示すメッセージのＧＵＭＭＥＩ　Ｌｉｓｔ内に設定する。 Specifically, the call control unit 210_3 sets GUMEI # 1, Overload Response # 1, and Reduction Indication # 1, to which the set number # 1 is assigned, in the GUMEI List of the message shown in FIG. Furthermore, the call control unit 210_3 sets GUMME # 2, which is assigned the set number # 2, Overload Response # 2, and Reduction Indication # 2, in the GUMEI List of the message shown in FIG.

　上述のＳ４８の動作により、呼制御部２１０＿３は、ＧＵＭＭＥＩ毎にＯｖｅｒｌｏａｄ　ＲｅｓｐｏｎｓｅとＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを含む１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを作成する。 The call control unit 210_3 creates one Overload Start message including Overload Response and Reduction Indication for each GUMME by the operation of S48 described above.

　次に、呼制御部２１０＿３は、作成したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージをＨｅＮＢ２２、２３、２４に送信する（Ｓ１２）。 Next, the call control unit 210_3 transmits the created Overload Start message to the HeNBs 22, 23, and 24 (S12).

　（５）ＨｅＮＢ２２、２３、２４の動作
　ＨｅＮＢ２２、２３、２４は同じ動作を行うので、代表してＨｅＮＢ２２の動作について説明する。 (5) Operation of HeNBs 22, 23, and 24 Since the HeNBs 22, 23, and 24 perform the same operation, the operation of the HeNB 22 will be described as a representative.

　まず、ＨｅＮＢ２２は、上述のＳ１２の処理によりＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信する。 First, the HeNB 22 receives the Overload Start message by the process of S12 described above.

　ＨｅＮＢ２２は、Ｏｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージを受信すると、受信したＯｖｅｒｌｏａｄ　ＳｔａｒｔメッセージからＧＵＭＭＥＩ　Ｌｉｓｔを抽出する（Ｓ１３）。 When the HeNB 22 receives the Overload Start message, the HeNB 22 extracts the GUMMEI List from the received Overload Start message (S13).

　次に、図示していないが、ＨｅＮＢ２２の動作部２１３は、Ｓ１３で抽出したＧＵＭＭＥＩ　Ｌｉｓｔの先頭からＧＵＭＭＥＩ、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ及びＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎの組を順に抽出する。 Next, although not shown, the operation unit 213 of the HeNB 22 sequentially extracts a set of GUMMEI, Overload Response, and Reduction Indication from the head of the GUMMEI List extracted in S13.

　具体的には、動作部２１３は、ＧＵＭＭＥＩ＃１、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃１、Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１の組を抽出する。さらに、動作部２１３は、ＧＵＭＭＥＩ＃２、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅ＃２、Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２の組を抽出する。 Specifically, the operation unit 213 extracts a set of GUMME # 1, Overload Response # 1, and Reduction Indication # 1. Furthermore, the operation unit 213 extracts a set of GUMME # 2, Overload Response # 2, and Reduction Indication # 2.

　次に、動作部２１３は、抽出した組毎に、該組（以下、「該当する組」という）のＧＵＭＭＥＩが示すＭＭＥのトラヒックについて着信規制を行う（Ｓ４９）。 Next, for each extracted group, the operation unit 213 performs incoming call restriction on MME traffic indicated by the GUMEI of the group (hereinafter referred to as “corresponding group”) (S49).

　その際、動作部２１３は、該当する組のＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎが示す割合で着信規制を行う。 At that time, the operation unit 213 performs incoming call restriction at a rate indicated by the corresponding combination of Reduction Indication.

　具体的には、動作部２１３は、受信するＧＵＭＭＥＩ＃１が示すＭＭＥ２５のトラヒックについて、そのトラヒックをＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１が示す割合で破棄する着信規制を行う。また、動作部２１３は、受信するＧＵＭＭＥＩ＃２が示すＭＭＥ２６のトラヒックについて、そのトラヒックをＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃２が示す割合で破棄する着信規制を行う。 Specifically, the operation unit 213 performs incoming call restriction for discarding the traffic of the MME 25 indicated by the received GUMME # 1 at the rate indicated by the Reduction Indication # 1. In addition, the operation unit 213 performs incoming call restriction for discarding the traffic of the MME 26 indicated by the received GUMME # 2 at the rate indicated by the Reduction Indication # 2.

　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ＃１の値が１０だったとすると、動作部２１３は、受信するＧＵＭＭＥＩ＃１が示すＭＭＥ２５のトラヒックについて、そのトラヒックの１０％を破棄する着信規制を行う。動作部２１３は、上述の「（６－３－４）動作部１３の機能」で説明した通り、接続する端末（図示せず）からトラヒックを受信する。 Assuming that the value of Reduction Indication # 1 is 10, the operation unit 213 performs incoming call restriction for discarding 10% of the traffic of the traffic of the MME 25 indicated by the received GUMME # 1. The operation unit 213 receives traffic from a terminal (not shown) to be connected, as described above in “(6-3-4) Function of the operation unit 13”.

　上述のＳ４９の処理は、以下の（Ｉ）～（Ｘ）の処理により実現されてもよい。その場合、動作部２１３は、一般的なアプリケーションで実現され、初期値が０のカウンタを備えるものとする。また、一般的なアプリケーションで実現される動作部２１３は、動的に配列［１］～［１００］を生成できるものとする。配列［１］～［１００］の初期値は０である。 The process of S49 described above may be realized by the following processes (I) to (X). In this case, the operation unit 213 is realized by a general application and includes a counter having an initial value of 0. Further, it is assumed that the operation unit 213 realized by a general application can dynamically generate the arrays [1] to [100]. The initial values of the arrays [1] to [100] are 0.

　（６）上述のＳ４９の処理を実現する処理
　まず、動作部２１３は、抽出した組毎に、以下の（Ｉ）～（Ｘ）の処理を並行して実施する。 (6) Process for realizing the process of S49 described above First, the operation unit 213 performs the following processes (I) to (X) in parallel for each extracted set.

　（Ｉ）まず、動作部２１３は、配列［１］～［１００］を生成する。 (I) First, the operation unit 213 generates arrays [1] to [100].

　（ＩＩ）次に、動作部２１３は、該当する組のＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎが示す値（例えば１０）個の配列を、配列［１］～［１００］の中からランダムに選択する。 (II) Next, the operation unit 213 randomly selects an array of values (for example, 10) indicated by the corresponding reduction instruction from the arrays [1] to [100].

　例えば、動作部２１３は、配列［１］、配列［１１］、配列［２４］、配列［４０］、配列［４１］、配列［５４］、配列［７６］、配列［７９］、配列［８０］、配列［９６］の１０個を選択してもよい。 For example, the operation unit 213 includes the array [1], the array [11], the array [24], the array [40], the array [41], the array [54], the array [76], the array [79], and the array [80]. ], 10 of the array [96] may be selected.

　（ＩＩＩ）次に、動作部２１３は、選択した配列の値を１とする。 (III) Next, the operation unit 213 sets the value of the selected array to 1.

　配列の添字の番号は、何番目に受信するトラヒックかを示す番号である。動作部２１３は、上述の（Ｉ）～（ＩＩＩ）の処理により、何番目に受信するトラヒックを、拒絶するトラヒックとするか決定する。 The number of the subscript of the array is a number indicating the order of traffic received. The operation unit 213 determines the number of traffics to be received as traffic to be rejected by the processes (I) to (III) described above.

　（ＩＶ）その後、動作部２１３は、接続する端末（図示せず）から、抽出した組のＧＵＭＭＥＩが示すＭＭＥのトラヒックを受信すると、自身に備わるカウンタの値を１つインクリメントする。 (IV) After that, when receiving the MME traffic indicated by the extracted set of GUMMEI from the connected terminal (not shown), the operation unit 213 increments the value of the counter included in the operation unit 213 by one.

　上述の（ＩＶ）の処理は、受信したトラヒックが何番目のトラヒックかカウントする処理である。 The process (IV) described above is a process for counting the number of traffic received.

　（Ｖ）次に、動作部２１３は、インクリメントしたカウンタの値を添字とする配列の値が値１か否かを判別する。 (V) Next, the operation unit 213 determines whether or not the value of the array with the incremented counter value as a subscript is the value 1.

　上述の（Ｖ）の処理は、受信したトラヒックが、拒絶するトラヒック（以下、「拒絶トラヒック」という）か否かを判別する処理である。 The process (V) described above is a process for determining whether or not the received traffic is traffic to be rejected (hereinafter referred to as “rejected traffic”).

　（ＶＩ）次に、動作部２１３は、インクリメントしたカウンタの値を添字とする配列の値が値１である場合（上述の（Ｖ）でＹｅｓの場合）、受信したトラヒックが拒絶トラヒックであり、受信したトラヒックを破棄する。 (VI) Next, when the value of the array with the incremented counter value as a subscript is the value 1 (when (Yes) in the above (V)), the operation unit 213 indicates that the received traffic is rejection traffic, Discard the received traffic.

　（ＶＩＩ）一方、動作部２１３は、インクリメントしたカウンタの値を添字とする配列の値が値０である場合（上述の（Ｖ）でＮｏの場合）、受信したトラヒックを電気信号として抽出部１２に出力する。すなわち、動作部２１３は、受信したトラヒックを装置に受け入れる。 (VII) On the other hand, when the value of the array having the incremented counter value as a subscript is 0 (when the above (V) is No), the operation unit 213 extracts the received traffic as an electrical signal. Output to. That is, the operation unit 213 accepts the received traffic to the device.

　（ＶＩＩＩ）次に、動作部２１３は、カウンタの値が１００であるか否かを判別する。トラヒックを１００個受信したか否かを確認する為である。 (VIII) Next, the operation unit 213 determines whether or not the value of the counter is 100. This is to confirm whether 100 traffics have been received or not.

　（ＩＸ）次に、動作部２１３は、カウンタの値が１００である場合（上述の（ＶＩＩＩ）でＹｅｓの場合）は、カウンタの値を初期値０とし、次のトラヒックの受信を待つ。動作部２１３は、該当する組のＧＵＭＭＥＩが示すＭＭＥのトラヒックを受信すると、再度、上述の（ＩＶ）～（ＩＸ）の処理を行う。 (IX) Next, the operation unit 213 sets the counter value to the initial value 0 when the counter value is 100 (Yes in the above (VIII)), and waits for reception of the next traffic. When receiving the MME traffic indicated by the corresponding set of GUMME, the operation unit 213 performs the processes (IV) to (IX) described above again.

　（Ｘ）一方、動作部２１３は、カウンタの値が１００より小さい値の場合（上述の（ＶＩＩＩ）でＮｏの場合）は、次のトラヒックの受信を待つ。動作部２１３は、該当する組のＧＵＭＭＥＩが示すＭＭＥのトラヒックを受信すると、再度、上述の（ＩＶ）～（ＩＸ）の処理を行う。 (X) On the other hand, when the value of the counter is smaller than 100 (when the above (VIII) is No), the operation unit 213 waits for reception of the next traffic. When receiving the MME traffic indicated by the corresponding set of GUMME, the operation unit 213 performs the processes (IV) to (IX) described above again.

　上述のＳ４９の処理の結果、ＨｅＮＢ２２が、ＭＭＥ毎に異なる着信規制を行う。その結果、各ＭＭＥへのトラヒックが少なくなり、ＭＭＥの輻輳状態が解消される。すなわち、ＨｅＮＢ－ＧＷ２１は、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に着信規制による輻輳制御を行うことができる。 As a result of the process of S49 described above, the HeNB 22 performs different incoming call restrictions for each MME. As a result, the traffic to each MME is reduced and the congestion state of the MME is eliminated. That is, the HeNB-GW 21 can perform congestion control by incoming call restriction for each MME with one Overload Start message.

　なお、動作部２１３は、Ｓ４９の処理において、ＧＵＭＭＥＩが示すＭＭＥのトラヒックのうち、特定のトラヒックについて処理を行ってもよい。例えば、動作部２１３は、ＲＲＣ　Ｃｏｎｎｅｃｔｉｏｎ　ＲｅｑｕｅｓｔメッセージについてＳ４９の処理を行ってもよい。
（７）着信規制の解除について
　ＨｅＮＢ－ＧＷ２１とＨｅＮＢ２２、２３、２４は、着信規制の解除を、以下の通り行うことができる。 In addition, in the process of S49, the operation unit 213 may process specific traffic among the MME traffic indicated by GUMMEI. For example, the operation unit 213 may perform the process of S49 on the RRC Connection Request message.
(7) Cancellation of incoming call restriction The HeNB-GW 21 and the HeNBs 22, 23, and 24 can release incoming call restrictions as follows.

　まず、ＨｅＮＢ－ＧＷ２１は、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、図１０に示されるＳ２２、Ｓ２９の処理において、以下の（削除情報）の情報もデータ管理部１１（メモリ）から削除する。 First, when receiving the Overload Stop message, the HeNB-GW 21 also deletes the following information (deletion information) from the data management unit 11 (memory) in the processing of S22 and S29 shown in FIG.

　（削除情報）
　・Ｓ２１又はＳ２８の処理で抽出されたＧＵＭＭＥＩと同じ組番号が付与されたＲｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎ。 (Delete information)
-Reduction Indication to which the same set number as GUMMEI extracted in S21 or S28 is assigned.

　さらに、ＨｅＮＢ２２、２３、２４は、上述のＳ２６とＳ３３の処理において抽出したＧＵＭＭＥＩが示すＭＭＥのトラヒックについて行っている着信規制を解除する。その結果、ＨｅＮＢ２２、２３、２４は、図１５に示される上述のＳ１３、Ｓ４９の処理を行う前の状態に戻る。 Furthermore, the HeNBs 22, 23, and 24 cancel the incoming call restriction that is performed for the traffic of the MME indicated by the GUMMEI extracted in the processes of S26 and S33 described above. As a result, the HeNBs 22, 23, and 24 return to the state before performing the above-described processes of S13 and S49 illustrated in FIG.

　上述した以外の動作は、第１の実施形態におけるシステムの動作と同じであるので、省略する。 Since operations other than those described above are the same as the system operations in the first embodiment, a description thereof will be omitted.

　［効果の説明］
　本実施形態によれば、ＨｅＮＢ－ＧＷは、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、ＭＭＥ毎に異なる輻輳制御を着信規制により行うことができる。 [Description of effects]
According to the present embodiment, the HeNB-GW can perform different congestion control for each MME by incoming restriction by using one Overload Start message.

　なぜなら、ＨｅＮＢ－ＧＷが、ＧＵＭＭＥＩ毎（ＭＭＥ毎）にＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎを含むメッセージをＨｅＮＢに送信し、ＨｅＮＢが、そのメッセージに基づいてＭＭＥ毎に着信規制を実施するからである。 This is because the HeNB-GW transmits a message including Traffic Load Reduction Indication for each GUMMEI (for each MME) to the HeNB, and the HeNB performs incoming call restriction for each MME based on the message.

　≪第３の実施の形態≫
　次に、本発明の第３の実施の形態について説明する。 << Third Embodiment >>
Next, a third embodiment of the present invention will be described.

　第３の実施形態のシステムのＨｅＮＢ－ＧＷは、Ｏｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ毎に、時間を空けて送信する。これにより、第３の実施形態のシステムのＨｅＮＢ－ＧＷは、トラヒックを制限する動作を解除した各ＨｅＮＢから一斉にトラヒックがＭＭＥに流れることを防ぎ、ＭＭＥが再び輻輳状態となることを十分防ぐことができる。 The HeNB-GW of the system of the third embodiment transmits an Overload Stop message for each HeNB with a time interval. As a result, the HeNB-GW in the system of the third embodiment prevents traffic from flowing to the MME from all the HeNBs that have released the operation of restricting traffic, and sufficiently prevents the MME from becoming congested again. Can do.

　以下に、第３の実施の形態のシステムの構成と動作について説明する。 The configuration and operation of the system according to the third embodiment will be described below.

　［構成の説明］
　（１）第３の実施形態のシステムの構成
　図１６は、本発明の第３の実施の形態におけるシステムの構成例を示す図である。図１７は、本発明の第３の実施の形態におけるシステムに備わるＨｅＮＢ－ＧＷの構成例を示す図である。 [Description of configuration]
(1) System Configuration of Third Embodiment FIG. 16 is a diagram illustrating a configuration example of a system according to the third embodiment of the present invention. FIG. 17 is a diagram illustrating a configuration example of the HeNB-GW included in the system according to the third embodiment of the present invention.

　第３の実施形態のシステムは、図１６に示されるように、ＨｅＮＢ－ＧＷ１の代わりにＨｅＮＢ－ＧＷ３１を備える。ＨｅＮＢ－ＧＷ３１は、図１７に示されるように、呼制御部１０＿３の代わりに、呼制御部３１０＿３を備える。 The system of the third embodiment includes a HeNB-GW 31 instead of the HeNB-GW 1 as shown in FIG. As illustrated in FIG. 17, the HeNB-GW 31 includes a call control unit 310_3 instead of the call control unit 10_3.

　上述した以外の構成は、第１の実施形態におけるシステムと同じであるので、同一の符号を付して、説明を省略する。 Since the configuration other than that described above is the same as that of the system according to the first embodiment, the same reference numerals are given and description thereof is omitted.

　（２）呼制御部３１０＿３の機能について
　呼制御部３１０＿３は、受信したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ２、３、４毎に、所定時間、時間を空けて送信する。 (2) Function of Call Control Unit 310_3 The call control unit 310_3 transmits the received Overload Stop message for each of the HeNBs 2, 3, and 4 with a predetermined time interval.

　所定時間は、本実施形態のシステムの管理者によって予め呼制御部３１０＿３に設定される。 The predetermined time is preset in the call control unit 310_3 by the system administrator of the present embodiment.

　上述した以外の機能は、第１の実施形態におけるシステムと同じである。 Functions other than those described above are the same as those of the system in the first embodiment.

　［動作の説明］
　次に、本実施形態のシステムの動作を説明する。 [Description of operation]
Next, the operation of the system of this embodiment will be described.

　図１８は、本発明の第３の実施の形態におけるシステムの動作を説明する為の図である。 FIG. 18 is a diagram for explaining the operation of the system according to the third embodiment of the present invention.

　図１８を用いて、本実施形態のシステムの動作を以下に説明する。 The operation of the system of this embodiment will be described below with reference to FIG.

　（１）本実施形態のシステムの動作
　まず、ＨｅＮＢ－ＧＷ３１の呼制御部３１０＿３は、図１８に示されるように、Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを呼制御部１０＿１から受信したとする。また、受信したＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージには、ＭＭＥ５を示すＧＵＭＭＥＩが含まれているものとする。 (1) Operation of System of First Embodiment First, it is assumed that the call control unit 310_3 of the HeNB-GW 31 receives an Overload Stop message from the call control unit 10_1 as illustrated in FIG. Further, it is assumed that the received Overload Stop message includes GUMMEI indicating MME5.

　その場合、ＨｅＮＢ－ＧＷ３１の呼制御部３１０＿３は、受信したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ２に送信する（Ｓ６０）。 In that case, the call control unit 310_3 of the HeNB-GW 31 transmits the received Overload Stop message to the HeNB 2 (S60).

　次に、ＨｅＮＢ－ＧＷ３１の呼制御部３１０＿３は、所定時間経過後に、受信したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ３に送信する（Ｓ６１）。 Next, the call control unit 310_3 of the HeNB-GW 31 transmits the received Overload Stop message to the HeNB 3 after a predetermined time has elapsed (S61).

　次に、ＨｅＮＢ－ＧＷ３１の呼制御部３１０＿３は、所定時間経過後に、受信したＯｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ４に送信する（Ｓ６２）。 Next, the call control unit 310_3 of the HeNB-GW 31 transmits the received Overload Stop message to the HeNB 4 after a predetermined time has elapsed (S62).

　すなわち、ＨｅＮＢ－ＧＷ３１の呼制御部３１０＿３は、Ｏｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ２、３、４毎に、所定時間、時間を空けて送信する。Ｏｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信したＨｅＮＢ２、３、４は、時間を空けて順番に上述のＳ２５、Ｓ２６を実施し、ＭＭＥ５へのトラヒックを制限する動作を解除していく。 That is, the call control unit 310_3 of the HeNB-GW 31 transmits an Overload Stop message for each of the HeNBs 2, 3, and 4 with a predetermined time interval. The HeNBs 2, 3, and 4 that have received the Overload Stop message perform the above-described S25 and S26 in order at intervals of time, and cancel the operation that restricts traffic to the MME 5.

　その結果、本実施形態のシステムのＨｅＮＢ－ＧＷ３１は、トラヒックを制限する動作を解除したＨｅＮＢ２、３、４から一斉にトラヒックがＭＭＥ５に流れることを防ぎ、ＭＭＥ５が再び輻輳状態となることを十分防ぐことができる。 As a result, the HeNB-GW 31 of the system according to the present embodiment prevents the traffic from flowing to the MME 5 from the HeNBs 2, 3, and 4 that have canceled the operation for restricting traffic, and sufficiently prevents the MME 5 from becoming congested again. be able to.

　上述した以外の動作は、第１の実施形態におけるシステムの動作と同じであるので、省略する。 Since operations other than those described above are the same as the system operations in the first embodiment, a description thereof will be omitted.

　［効果の説明］
　本実施形態のＨｅＮＢ－ＧＷは、輻輳状態が解消されたＭＭＥが再び輻輳状態になることを十分防ぐことができる。 [Description of effects]
The HeNB-GW according to the present embodiment can sufficiently prevent the MME whose congestion state has been eliminated from becoming a congestion state again.

　なぜなら、本実施形態のＨｅＮＢ－ＧＷは、Ｏｖｅｒｌｏａｄ　ＳｔｏｐメッセージをＨｅＮＢ２、３、４毎に、所定時間、時間を空けて送信するからである。これにより、本実施形態のＨｅＮＢ－ＧＷは、各ＨｅＮＢから一斉にトラヒックがＭＭＥに流れることを防ぎ、ＭＭＥが再び輻輳状態となることを十分防ぐことができる。 This is because the HeNB-GW of the present embodiment transmits an Overload Stop message for each of the HeNBs 2, 3, and 4 with a predetermined time interval. Thereby, the HeNB-GW of the present embodiment can prevent traffic from flowing from each HeNB to the MME at once, and can sufficiently prevent the MME from becoming congested again.

　≪第４の実施の形態≫
　図１９は、本発明の第４の実施の形態におけるシステムの構成例を示す図である。以下に、第４の実施の形態のシステムの構成と動作について説明する。 << Fourth Embodiment >>
FIG. 19 is a diagram illustrating a configuration example of a system according to the fourth embodiment of the present invention. The configuration and operation of the system according to the fourth embodiment will be described below.

　［構成の説明］
　（１）第４の実施形態のシステムの構成
　第４の実施形態のシステムは、図１９に示されるように、中継装置１００が、基地局装置１０１と複数の制御装置１０２、１０３に接続されたシステムである。 [Description of configuration]
(1) System configuration of the fourth embodiment As shown in FIG. 19, the system of the fourth embodiment includes a relay device 100 connected to a base station device 101 and a plurality of control devices 102 and 103. System.

　中継装置１００は、制御部１１０を備える。基地局装置１０１は、抽出部１１１と、動作部１１２と、を備える。 The relay device 100 includes a control unit 110. Base station apparatus 101 includes an extraction unit 111 and an operation unit 112.

　中継装置１００の制御部１１０は、基地局装置１０１の抽出部１１１と、複数の制御装置１０２、１０３に接続される。基地局装置１０１の抽出部１１１は、動作部１１２に接続される。 The control unit 110 of the relay device 100 is connected to the extraction unit 111 of the base station device 101 and a plurality of control devices 102 and 103. The extraction unit 111 of the base station apparatus 101 is connected to the operation unit 112.

　中継装置１００は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）であってもよい。制御装置１０２、１０３は、例えば、ＭＭＥ（Ｍｏｂｉｌｉｔｙ　Ｍａｎａｇｅｍｅｎｔ　Ｅｎｔｉｔｙ）であり、基地局装置１０１は、ＨｅＮＢ（Ｈｏｍｅ　ｅＮｏｄｅＢ）であってもよい。 The relay device 100 may be a HeNB-GW (Home eNodeB Gateway). The control apparatuses 102 and 103 may be, for example, MME (Mobility Management Entity), and the base station apparatus 101 may be HeNB (Home eNodeB).

　（２）中継装置１００の制御部１１０の機能
　制御部１１０は、制御装置を示す識別子と基地局装置１０１の動作を示す動作情報とを含む所定のメッセージを複数の制御装置１０２、１０３から受信する。 (2) Function of Control Unit 110 of Relay Device 100 The control unit 110 receives a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device 101 from the plurality of control devices 102 and 103. .

　制御部１１０は、受信した所定のメッセージ各々に含まれる識別子と動作情報の組を１つのメッセージに含めて基地局装置１０１に送信する。 The control unit 110 includes a set of an identifier and operation information included in each received predetermined message in one message and transmits the message to the base station apparatus 101.

　上述の動作情報は、制御装置との通信を制限する基地局装置１０１の動作を示す情報である。 The above-described operation information is information indicating the operation of the base station device 101 that restricts communication with the control device.

　（３）基地局装置１０１の機能
　基地局装置１０１の抽出部１１１は、中継装置１００から受信した１つのメッセージから制御装置を示す識別子と基地局装置１０１の動作を示す動作情報の組を複数抽出する。 (3) Function of base station apparatus 101 The extraction unit 111 of the base station apparatus 101 extracts a plurality of sets of identifiers indicating the control apparatus and operation information indicating the operation of the base station apparatus 101 from one message received from the relay apparatus 100. To do.

　基地局装置１０１の動作部１１２は、抽出した上述の組毎に、その組の識別子が示す制御装置との通信において、該組の動作情報が示す動作（具体的には、制御装置との通信を制限する動作）を行う。 The operation unit 112 of the base station apparatus 101 performs the operation indicated by the operation information of the set (specifically, communication with the control apparatus) in communication with the control apparatus indicated by the identifier of the set for each of the extracted sets. To limit the operation).

　［動作の説明］
　次に、本実施形態のシステムの動作を説明する。 [Description of operation]
Next, the operation of the system of this embodiment will be described.

　（１）中継装置１００におけるメッセージの受信
　中継装置１００の制御部１１０は、所定のメッセージを複数の制御装置１０２、１０３から受信したとする。 (1) Reception of Message in Relay Device 100 Assume that the control unit 110 of the relay device 100 receives a predetermined message from a plurality of control devices 102 and 103.

　制御装置１０２から受信した所定のメッセージは、制御装置１０２を示す識別子(以下、「識別子Ａ」という)と、基地局装置１０１の動作を示す動作情報(以下、「動作情報Ａ」という)と、を含む。また、制御装置１０３から受信した所定のメッセージは、制御装置１０３を示す識別子(以下、「識別子Ｂ」という)と、基地局装置１０１の動作を示す動作情報(以下、「動作情報Ｂ」という)と、を含む。 The predetermined message received from the control apparatus 102 includes an identifier indicating the control apparatus 102 (hereinafter referred to as “identifier A”), operation information indicating the operation of the base station apparatus 101 (hereinafter referred to as “operation information A”), including. The predetermined message received from the control apparatus 103 includes an identifier indicating the control apparatus 103 (hereinafter referred to as “identifier B”) and operation information indicating the operation of the base station apparatus 101 (hereinafter referred to as “operation information B”). And including.

　上述の所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージであってもよい。その場合、上述の識別子はＧＵＭＭＥＩであり、動作情報は、Ｏｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである。 The above-mentioned predetermined message may be an Overload Start message defined in 3GPP (Third Generation Partnership Project). In that case, the above-mentioned identifier is GUMMEI, and the operation information is Overload Response.

　（２）中継装置１００の動作
　中継装置１００の制御部１１０は、複数の制御装置１０２、１０３から受信した所定のメッセージ各々に含まれる識別子Ａと動作情報Ａの組、識別子Ｂと動作情報Ｂの組を１つのメッセージに含めて基地局装置１０１に送信する。 (2) Operation of Relay Device 100 The control unit 110 of the relay device 100 sets the identifier A and the operation information A, the identifier B, and the operation information B included in each predetermined message received from the plurality of control devices 102 and 103. The set is included in one message and transmitted to the base station apparatus 101.

　（３）基地局装置１０１の動作
　基地局装置１０１の抽出部１１１は、中継装置１００から受信した１つのメッセージから制御装置を示す識別子と基地局装置１０１の動作を示す動作情報の組を複数抽出する。 (3) Operation of base station apparatus 101 The extraction unit 111 of the base station apparatus 101 extracts a plurality of sets of identifiers indicating the control apparatus and operation information indicating the operation of the base station apparatus 101 from one message received from the relay apparatus 100. To do.

　具体的には、基地局装置１０１の抽出部１１１は、制御装置１０２を示す識別子Ａと動作情報Ａの組（以下、「組Ａ」という）と、制御装置１０３を示す識別子Ｂと動作情報Ｂの組（以下、「組Ｂ」という）と、を抽出する。 Specifically, the extraction unit 111 of the base station apparatus 101 includes a set of an identifier A indicating the control apparatus 102 and operation information A (hereinafter referred to as “set A”), an identifier B indicating the control apparatus 103, and operation information B. Are extracted (hereinafter referred to as “set B”).

　次に、基地局装置１０１の動作部１１２は、抽出部１１１が抽出した上述の組毎に、その組の識別子が示す制御装置との通信において、該組の動作情報が示す動作を行う。 Next, the operation unit 112 of the base station apparatus 101 performs the operation indicated by the operation information of the set for each of the above-described sets extracted by the extraction unit 111 in communication with the control device indicated by the identifier of the set.

　具体的には、基地局装置１０１の動作部１１２は、組Ａの識別子Ａが示す制御装置１０２との通信において、動作情報Ａが示す動作（以下、「動作Ａ」という）を行う。また、基地局装置１０１の動作部１１２は、組Ｂの識別子Ｂが示す制御装置１０３との通信において、動作情報Ｂが示す動作（以下、「動作Ｂ」という）を行う。動作Ａと動作Ｂは、互いに異なる動作で、動作Ａは、制御装置１０２との通信を制限する動作であり、動作Ｂは、制御装置１０３との通信を制限する動作である。 Specifically, the operation unit 112 of the base station apparatus 101 performs an operation indicated by the operation information A (hereinafter referred to as “operation A”) in communication with the control apparatus 102 indicated by the identifier A of the set A. The operation unit 112 of the base station apparatus 101 performs an operation indicated by the operation information B (hereinafter referred to as “operation B”) in communication with the control apparatus 103 indicated by the identifier B of the set B. The operation A and the operation B are different from each other, the operation A is an operation that restricts communication with the control device 102, and the operation B is an operation that restricts communication with the control device 103.

　その結果、制御装置１０２、１０３へのトラヒックが少なくなり、制御装置１０２、１０３の輻輳状態が解消する。 As a result, the traffic to the control devices 102 and 103 is reduced, and the congestion state of the control devices 102 and 103 is eliminated.

　上述の動作に通り、中継装置１００は、１つのメッセージで、制御装置１０２、１０３との通信それぞれに異なる制限をかけ、制御装置１０２、１０３の輻輳状態を解消することができる。すなわち、中継装置１００は、１つのメッセージで、ＭＭＥ毎に異なる輻輳制御を行うことができる。 As described above, the relay device 100 can apply different restrictions to the communication with the control devices 102 and 103 with one message, and can eliminate the congestion state of the control devices 102 and 103. That is, the relay device 100 can perform different congestion control for each MME with one message.

　なお、上述の動作Ａは、制御装置１０２へのトラヒックを制限する動作、例えば、制御装置１０２のトラヒックにおいてＲＲＣコネクションの確立に係るトラヒックを拒絶する動作であってもよい。また、上述の動作Ｂは、制御装置１０３へのトラヒックを制限する動作、例えば、制御装置１０３のトラヒックにおいて高優先度のセッションのトラヒック以外のトラヒックを拒絶する動作であってもよい。 Note that the above-described operation A may be an operation that restricts traffic to the control apparatus 102, for example, an operation that rejects traffic related to establishment of an RRC connection in the traffic of the control apparatus 102. In addition, the above-described operation B may be an operation that restricts traffic to the control device 103, for example, an operation that rejects traffic other than high-priority session traffic in the traffic of the control device 103.

　［効果の説明］
　本実施形態によれば、中継装置１００は、１つのＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージで、制御装置１０２、１０３毎に異なる輻輳制御を行うことができる。 [Description of effects]
According to the present embodiment, the relay device 100 can perform different congestion control for each of the control devices 102 and 103 with one Overload Start message.

　なぜなら、中継装置１００は、制御装置を示す識別子毎に基地局の動作を示す動作情報をメッセージに設定して送信し、基地局装置１０１に、そのメッセージに基づいて制御装置毎に通信を制限する動作を実施させるからである。 This is because the relay apparatus 100 sets and transmits operation information indicating the operation of the base station for each identifier indicating the control apparatus, and restricts communication to the base station apparatus 101 for each control apparatus based on the message. This is because the operation is performed.

　上記の各実施形態の一部又は全部は、以下の付記のようにも記載されうるが、以下には限られない。
（付記１）
　基地局装置と複数の制御装置に接続された中継装置であって、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御手段を備え、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とする中継装置。
（付記２）
　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする付記１に記載の中継装置。
（付記３）
　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする付記１乃至２のいずれか１項に記載の中継装置。
（付記４）
　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする付記３に記載の中継装置。
（付記５）
　複数の前記基地局装置に接続し、
　前記制御手段は、前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する、
ことを特徴とする付記１乃至４のいずれか１項に記載の中継装置。
（付記６）
　前記制御手段は、
　接続する第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶する第１の呼制御手段と、
　接続する第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶する第２の呼制御手段と、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに含めて前記基地局装置に送信する第３の呼制御手段と、
を備えることを特徴とする付記１乃至５のいずれか１項に記載の中継装置。
（付記７）
　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする付記１乃至６のいずれか１項に記載の中継装置。
（付記８）
　前記中継装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする付記１乃至７のいずれか１項に記載の中継装置。
（付記９）
　中継装置を介して複数の制御装置に接続された基地局装置であって、
　前記中継装置から受信した１つのメッセージから、前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報の組を複数抽出する抽出手段と、
　抽出した前記組毎に、前記組の前記識別子が示す前記制御装置との通信において、前記組の前記動作情報が示す動作を行う動作手段と、を備え、
　前記動作は、前記通信を制限する動作である、
ことを特徴とする基地局装置。
（付記１０）
　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする付記９に記載の基地局装置。
（付記１１）
　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含み、
　前記動作手段は、前記通信において、前記動作情報から抽出した前記規制情報が示す割合で、受信したトラヒックを拒否する動作を行う、
ことを特徴とする付記９乃至１０のいずれか１項に記載の基地局装置。
（付記１２）
　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする付記１１に記載の基地局装置。
（付記１３）
　前記拒否する動作とは、破棄する動作である、
ことを特徴とする付記１１乃至１２のいずれか１項に記載の基地局装置。
（付記１４）
　前記動作手段は、前記中継装置から３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、通信を制限する前記動作を停止する、
ことを特徴とする付記９乃至１３のいずれか１項に記載の基地局装置。
（付記１５）
　中継装置が基地局装置と複数の制御装置に接続されたシステムであって、
　前記中継装置は、付記１乃至８のいずれか１項に記載の中継装置であり、
　前記基地局装置は、付記９乃至１４のいずれか１項に記載の基地局装置である、
ことを特徴とするシステム。
（付記１６）
　基地局装置と複数の制御装置に接続された装置の方法であって、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信し、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とする方法。
（付記１７）
　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする付記１６に記載の方法。
（付記１８）
　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする付記１６乃至１７のいずれか１項に記載の方法。
（付記１９）
　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする付記１８に記載の方法。
（付記２０）
　複数の前記基地局装置に接続された前記装置の方法であって、
　前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する、
ことを特徴とする付記１６乃至１９のいずれか１項に記載の方法。
（付記２１）
　前記識別子と前記動作情報の組を前記基地局装置に送信する場合においては、
　第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶し、
　第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶し、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに含めて前記基地局装置に送信する、
ことを特徴とする付記１６乃至２０のいずれか１項に記載の方法。
（付記２２）
　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする付記１６乃至２１のいずれか１項に記載の方法。
（付記２３）
　前記制御装置に接続された前記装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする付記１６乃至２２のいずれか１項に記載の方法。
（付記２４）
　基地局装置と複数の制御装置に接続された装置のプロセッサに、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御処理を行わせるためのプログラムを記録した記録媒体であり、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とするプログラムを記録した記録媒体。
（付記２５）
　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする付記２４に記載のプログラムを記録した記録媒体。
（付記２６）
　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする付記２４乃至２５のいずれか１項に記載のプログラムを記録した記録媒体。
（付記２７）
　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする付記２６に記載のプログラムを記録した記録媒体。
（付記２８）
　複数の前記基地局装置に接続された前記装置のプロセッサに、
前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する送信処理を行わせる、
ことを特徴とする付記２４乃至２７のいずれか１項に記載のプログラムを記録した記録媒体。
（付記２９）
　前記制御処理は、
　第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶する第１の呼制御処理と、
　第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶する第２の呼制御処理と、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに設定して前記基地局装置に送信する第３の呼制御処理と、を有する、
ことを特徴とする付記２４乃至２８のいずれか１項に記載のプログラムを記録した記録媒体。
（付記３０）
　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする付記２４乃至２９のいずれか１項に記載のプログラムを記録した記録媒体。
（付記３１）
　前記制御装置に接続された前記装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする付記２４乃至３０のいずれか１項に記載のプログラムを記録した記録媒体。
（付記３２）
　基地局装置と複数の制御装置に接続された装置のプロセッサに、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御処理を行わせるためのプログラムであり、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とするプログラム。
（付記３３）
　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする付記３２に記載のプログラム。
（付記３４）
　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする付記３２乃至３３のいずれか１項に記載のプログラム。
（付記３５）
　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする付記３４に記載のプログラム。
（付記３６）
　複数の前記基地局装置に接続された前記装置のプロセッサに、
前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する送信処理を行わせる、
ことを特徴とする付記３２乃至３５のいずれか１項に記載のプログラム。
（付記３７）
　前記制御処理は、
　第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶する第１の呼制御処理と、
　第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶する第２の呼制御処理と、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに設定して前記基地局装置に送信する第３の呼制御処理と、を有する、
ことを特徴とする付記３２乃至３６のいずれか１項に記載のプログラム。
（付記３８）
　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする付記３２乃至３７のいずれか１項に記載のプログラム。
（付記３９）
　前記制御装置に接続された前記装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする付記３２乃至３８のいずれか１項に記載のプログラム。
（付記４０）
　前記制御ステップは、
　第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶する第１の呼制御ステップと、
　第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶する第２の呼制御ステップと、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに含めて前記基地局装置に送信する第３の呼制御ステップと、
を有することを特徴とする付記１６乃至２０のいずれか１項に記載の方法。 A part or all of each of the above embodiments can be described as in the following supplementary notes, but is not limited thereto.
(Appendix 1)
A relay device connected to a base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Control means for including the set of information in one message and transmitting it to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
A relay device characterized by that.
(Appendix 2)
The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
The relay device according to Supplementary Note 1, wherein:
(Appendix 3)
The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
The relay device according to any one of appendices 1 to 2, characterized in that:
(Appendix 4)
The restriction information is Traffic Load Reduction Indication specified in 3GPP.
The relay device according to Supplementary Note 3, wherein
(Appendix 5)
Connected to a plurality of the base station devices,
The control means transmits an Overload Stop message defined in 3GPP received from the control device with a predetermined time interval for each base station device,
The relay device according to any one of appendices 1 to 4, characterized in that:
(Appendix 6)
The control means includes
First call control means for storing in the storage means a set of the identifier and the operation information included in the message received from the first control device to be connected;
Second call control means for storing, in the storage means, a set of the identifier and the operation information included in the message received from the second control device to be connected;
A third call control means for sending to the base station apparatus all the sets of the identifier and the operation information stored in the storage means included in the message at a predetermined opportunity;
The relay device according to any one of appendices 1 to 5, further comprising:
(Appendix 7)
The identifier is GUMMEI defined in 3GPP,
The relay apparatus according to any one of appendices 1 to 6, wherein the operation information is an Overload Response defined in 3GPP.
(Appendix 8)
The relay device is a HeNB-GW (Home eNodeB Gateway).
The relay device according to any one of appendices 1 to 7, characterized in that:
(Appendix 9)
A base station device connected to a plurality of control devices via a relay device,
Extraction means for extracting a plurality of sets of identifiers indicating the control device and operation information indicating the operation of the base station device from one message received from the relay device;
For each of the extracted sets, operation means for performing an operation indicated by the operation information of the set in communication with the control device indicated by the identifier of the set,
The operation is an operation of restricting the communication.
A base station apparatus.
(Appendix 10)
The identifier is GUMMEI defined in 3GPP,
The base station apparatus according to appendix 9, wherein the operation information is an Overload Response defined in 3GPP.
(Appendix 11)
The operation information includes regulatory information indicating a percentage of traffic that is refused to be received,
The operation means performs an operation of rejecting received traffic at a rate indicated by the restriction information extracted from the operation information in the communication.
11. The base station apparatus according to any one of appendices 9 to 10, characterized in that:
(Appendix 12)
The restriction information is Traffic Load Reduction Indication specified in 3GPP.
The base station apparatus according to Supplementary Note 11, wherein
(Appendix 13)
The rejecting operation is an operation of discarding.
13. The base station apparatus according to any one of appendices 11 to 12, characterized in that:
(Appendix 14)
When the operation unit receives an Overload Stop message defined in 3GPP from the relay device, the operation unit stops the operation of restricting communication.
14. The base station apparatus according to any one of appendices 9 to 13, characterized in that:
(Appendix 15)
A relay device is a system connected to a base station device and a plurality of control devices,
The relay device is the relay device according to any one of appendices 1 to 8,
The base station apparatus is the base station apparatus according to any one of appendices 9 to 14,
A system characterized by that.
(Appendix 16)
A method of a device connected to a base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Are included in one message and transmitted to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
A method characterized by that.
(Appendix 17)
The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
The method according to supplementary note 16, characterized by:
(Appendix 18)
The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
18. The method according to any one of supplementary notes 16 to 17, characterized in that:
(Appendix 19)
The restriction information is Traffic Load Reduction Indication specified in 3GPP.
The method according to appendix 18, characterized by:
(Appendix 20)
A method of the apparatus connected to a plurality of the base station apparatuses,
An Overload Stop message defined in 3GPP received from the control device is transmitted with a predetermined time interval for each base station device,
20. The method according to any one of appendices 16 to 19, characterized by:
(Appendix 21)
In the case of transmitting the set of the identifier and the operation information to the base station device,
Storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit;
Storing the set of the identifier and the operation information included in the message received from the second control device in the storage means;
At a predetermined opportunity, all the sets of the identifier and the operation information stored in the storage means are included in the message and transmitted to the base station apparatus.
21. The method according to any one of appendices 16 to 20, characterized in that:
(Appendix 22)
The identifier is GUMMEI defined in 3GPP,
The method according to any one of supplementary notes 16 to 21, wherein the operation information is an Overload Response defined in 3GPP.
(Appendix 23)
The device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
Item 23. The method according to any one of Items 16 to 22, wherein the method is performed.
(Appendix 24)
In the processor of the device connected to the base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Is a recording medium recording a program for performing a control process of transmitting a set of a single message to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
The recording medium which recorded the program characterized by the above-mentioned.
(Appendix 25)
The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
A recording medium on which the program according to appendix 24 is recorded.
(Appendix 26)
The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
A recording medium on which the program according to any one of appendices 24 to 25 is recorded.
(Appendix 27)
The restriction information is Traffic Load Reduction Indication specified in 3GPP.
A recording medium on which the program according to appendix 26 is recorded.
(Appendix 28)
A processor of the device connected to a plurality of the base station devices,
An overload stop message defined in 3GPP received from the control device is transmitted for a predetermined time for each base station device, and transmission processing is performed.
A recording medium on which the program according to any one of appendices 24 to 27 is recorded.
(Appendix 29)
The control process is
A first call control process for storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit;
A second call control process for storing in the storage means a set of the identifier and the operation information included in the message received from the second control device;
A third call control process for setting all the sets of the identifier and the operation information stored in the storage means to the message and transmitting the message to the base station device at a predetermined opportunity,
A recording medium on which the program according to any one of appendices 24 to 28 is recorded.
(Appendix 30)
The identifier is GUMMEI defined in 3GPP,
30. A recording medium on which the program according to any one of appendices 24 to 29 is recorded, wherein the operation information is an Overload Response defined in 3GPP.
(Appendix 31)
The device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
A recording medium on which the program according to any one of appendices 24 to 30 is recorded.
(Appendix 32)
In the processor of the device connected to the base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Is a program for causing a control process to be included in one message and transmitted to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
A program characterized by that.
(Appendix 33)
The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
The program according to supplementary note 32, characterized by:
(Appendix 34)
The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
34. The program according to any one of appendices 32-33.
(Appendix 35)
The restriction information is Traffic Load Reduction Indication specified in 3GPP.
35. The program according to appendix 34, wherein
(Appendix 36)
A processor of the device connected to a plurality of the base station devices,
An overload stop message defined in 3GPP received from the control device is transmitted for a predetermined time for each base station device, and transmission processing is performed.
36. The program according to any one of appendices 32 to 35, wherein
(Appendix 37)
The control process is
A first call control process for storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit;
A second call control process for storing in the storage means a set of the identifier and the operation information included in the message received from the second control device;
A third call control process for setting all the sets of the identifier and the operation information stored in the storage means to the message and transmitting the message to the base station device at a predetermined opportunity,
37. The program according to any one of supplementary notes 32 to 36, wherein
(Appendix 38)
The identifier is GUMMEI defined in 3GPP,
38. The program according to any one of appendices 32 to 37, wherein the operation information is an Overload Response defined in 3GPP.
(Appendix 39)
The device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
40. The program according to any one of supplementary notes 32 to 38, characterized by:
(Appendix 40)
The control step includes
A first call control step of storing in a storage means a set of the identifier and the operation information included in the message received from the first control device;
A second call control step of storing, in the storage means, a set of the identifier and the operation information included in the message received from the second control device;
A third call control step of transmitting a set of the identifier and the operation information stored in the storage means to the base station apparatus in a predetermined opportunity,
21. The method according to any one of appendices 16 to 20, characterized by comprising:

　以上、実施形態を参照して本願発明を説明したが、本願発明は上記実施形態に限定されるものではない。本願発明の構成や詳細には、本願発明のスコープ内で当業者が理解し得る様々な変更をすることができる。 The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

　この出願は、２０１８年３月７日に出願された日本出願特願２０１８－０４０９７２を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2018-040972 filed on Mar. 7, 2018, the entire disclosure of which is incorporated herein.

　１、２１、３１　　ＨｅＮＢ－ＧＷ
　２、３、４、２２、２３、２４　　ＨｅＮＢ
　５、６、２５、２６、９０　ＭＭＥ
　９１、９２、９３　　アクセスポイント
　９４　　コンセントレータ構成要素
　１０＿１、１０＿２、１０＿３、２１０＿１～２１０＿３、３１０＿３　　呼制御部
　１１　　データ管理部
　１２、１１１　　抽出部
　１３、１１２、２１３　　動作部
　１００　　中継装置
　１０１　　基地局装置
　１０２、１０３　　制御装置
　１１０　　制御部 1, 21, 31 HeNB-GW
2, 3, 4, 22, 23, 24 HeNB
5, 6, 25, 26, 90 MME
91, 92, 93 Access point 94 Concentrator component 10_1, 10_2, 10_3, 210_1 to 210_3, 310_3 Call control unit 11 Data management unit 12, 111 Extraction unit 13, 112, 213 Operation unit 100 Relay device 101 Base station device 102, 103 control device 110 control unit

Claims (31)

　基地局装置と複数の制御装置に接続された中継装置であって、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御手段を備え、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とする中継装置。 A relay device connected to a base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Control means for including the set of information in one message and transmitting it to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
A relay device characterized by that. 　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする請求項１に記載の中継装置。 The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
The relay apparatus according to claim 1. 　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする請求項１乃至２のいずれか１項に記載の中継装置。 The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
The relay device according to claim 1, wherein the relay device is a relay device. 　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする請求項３に記載の中継装置。 The restriction information is Traffic Load Reduction Indication specified in 3GPP.
The relay apparatus according to claim 3. 　複数の前記基地局装置に接続し、
　前記制御手段は、前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する、
ことを特徴とする請求項１乃至４のいずれか１項に記載の中継装置。 Connected to a plurality of the base station devices,
The control means transmits an Overload Stop message defined in 3GPP received from the control device with a predetermined time interval for each base station device,
The relay device according to claim 1, wherein the relay device is a relay device. 　前記制御手段は、
　接続する第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶する第１の呼制御手段と、
　接続する第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶する第２の呼制御手段と、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに含めて前記基地局装置に送信する第３の呼制御手段と、
を備えることを特徴とする請求項１乃至５のいずれか１項に記載の中継装置。 The control means includes
First call control means for storing in the storage means a set of the identifier and the operation information included in the message received from the first control device to be connected;
Second call control means for storing, in the storage means, a set of the identifier and the operation information included in the message received from the second control device to be connected;
A third call control means for sending to the base station apparatus all the sets of the identifier and the operation information stored in the storage means included in the message at a predetermined opportunity;
The relay device according to any one of claims 1 to 5, further comprising: 　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする請求項１乃至６のいずれか１項に記載の中継装置。 The identifier is GUMMEI defined in 3GPP,
The relay apparatus according to claim 1, wherein the operation information is an Overload Response defined by 3GPP. 　前記中継装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする請求項１乃至７のいずれか１項に記載の中継装置。 The relay device is a HeNB-GW (Home eNodeB Gateway).
The relay device according to claim 1, wherein the relay device is a relay device. 　中継装置を介して複数の制御装置に接続された基地局装置であって、
　前記中継装置から受信した１つのメッセージから、前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報の組を複数抽出する抽出手段と、
　抽出した前記組毎に、前記組の前記識別子が示す前記制御装置との通信において、前記組の前記動作情報が示す動作を行う動作手段と、を備え、
　前記動作は、前記通信を制限する動作である、
ことを特徴とする基地局装置。 A base station device connected to a plurality of control devices via a relay device,
Extraction means for extracting a plurality of sets of identifiers indicating the control device and operation information indicating the operation of the base station device from one message received from the relay device;
For each of the extracted sets, operation means for performing an operation indicated by the operation information of the set in communication with the control device indicated by the identifier of the set,
The operation is an operation of restricting the communication.
A base station apparatus. 　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする請求項９に記載の基地局装置。 The identifier is GUMMEI defined in 3GPP,
The base station apparatus according to claim 9, wherein the operation information is an Overload Response defined in 3GPP. 　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含み、
　前記動作手段は、前記通信において、前記動作情報から抽出した前記規制情報が示す割合で、受信したトラヒックを拒否する動作を行う、
ことを特徴とする請求項９乃至１０のいずれか１項に記載の基地局装置。 The operation information includes regulatory information indicating a percentage of traffic that is refused to be received,
The operation means performs an operation of rejecting received traffic at a rate indicated by the restriction information extracted from the operation information in the communication.
The base station apparatus according to claim 9, wherein the base station apparatus is a base station apparatus. 　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする請求項１１に記載の基地局装置。 The restriction information is Traffic Load Reduction Indication specified in 3GPP.
The base station apparatus according to claim 11. 　前記拒否する動作とは、破棄する動作である、
ことを特徴とする請求項１１乃至１２のいずれか１項に記載の基地局装置。 The rejecting operation is an operation of discarding.
The base station apparatus according to claim 11, wherein the base station apparatus is a base station apparatus. 　前記動作手段は、前記中継装置から３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを受信すると、通信を制限する前記動作を停止する、
ことを特徴とする請求項９乃至１３のいずれか１項に記載の基地局装置。 When the operation unit receives an Overload Stop message defined in 3GPP from the relay device, the operation unit stops the operation of restricting communication.
The base station apparatus according to claim 9, wherein the base station apparatus is a base station apparatus. 　中継装置が基地局装置と複数の制御装置に接続されたシステムであって、
　前記中継装置は、請求項１乃至８のいずれか１項に記載の中継装置であり、
　前記基地局装置は、請求項９乃至１４のいずれか１項に記載の基地局装置である、
ことを特徴とするシステム。 A relay device is a system connected to a base station device and a plurality of control devices,
The relay device is the relay device according to any one of claims 1 to 8,
The base station apparatus is the base station apparatus according to any one of claims 9 to 14.
A system characterized by that. 　基地局装置と複数の制御装置に接続された装置の方法であって、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信し、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とする方法。 A method of a device connected to a base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Are included in one message and transmitted to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
A method characterized by that. 　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする請求項１６に記載の方法。 The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
The method according to claim 16. 　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする請求項１６乃至１７のいずれか１項に記載の方法。 The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
18. A method according to any one of claims 16 to 17, characterized in that 　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする請求項１８に記載の方法。 The restriction information is Traffic Load Reduction Indication specified in 3GPP.
The method according to claim 18, wherein: 　複数の前記基地局装置に接続された前記装置の方法であって、
　前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する、
ことを特徴とする請求項１６乃至１９のいずれか１項に記載の方法。 A method of the apparatus connected to a plurality of the base station apparatuses,
An Overload Stop message defined in 3GPP received from the control device is transmitted with a predetermined time interval for each base station device,
20. A method according to any one of claims 16 to 19, characterized in that 　前記識別子と前記動作情報の組を前記基地局装置に送信する場合においては、
　第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶し、
　第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶し、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに含めて前記基地局装置に送信する、
ことを特徴とする請求項１６乃至２０のいずれか１項に記載の方法。 In the case of transmitting the set of the identifier and the operation information to the base station device,
Storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit;
Storing the set of the identifier and the operation information included in the message received from the second control device in the storage means;
At a predetermined opportunity, all the sets of the identifier and the operation information stored in the storage means are included in the message and transmitted to the base station apparatus.
21. A method according to any one of claims 16 to 20, characterized in that 　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする請求項１６乃至２１のいずれか１項に記載の方法。 The identifier is GUMMEI defined in 3GPP,
The method according to any one of claims 16 to 21, wherein the operation information is an Overload Response defined in 3GPP. 　前記制御装置に接続された前記装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする請求項１６乃至２２のいずれか１項に記載の方法。 The device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
23. A method according to any one of claims 16 to 22, characterized in that 　基地局装置と複数の制御装置に接続された装置のプロセッサに、
　前記制御装置を示す識別子と前記基地局装置の動作を示す動作情報とを含む所定のメッセージを複数の前記制御装置から受信した場合、受信した前記所定のメッセージ各々に含まれる前記識別子と前記動作情報の組を１つのメッセージに含めて前記基地局装置に送信する制御処理を行わせるためのプログラムを記録した記録媒体であり、
　前記動作情報は、前記制御装置との通信を制限する前記基地局装置の動作を示す情報である、
ことを特徴とするプログラムを記録した記録媒体。 In the processor of the device connected to the base station device and a plurality of control devices,
When a predetermined message including an identifier indicating the control device and operation information indicating the operation of the base station device is received from a plurality of the control devices, the identifier and the operation information included in each of the received predetermined messages Is a recording medium recording a program for performing a control process of transmitting a set of a single message to the base station apparatus,
The operation information is information indicating an operation of the base station device that restricts communication with the control device.
The recording medium which recorded the program characterized by the above-mentioned. 　前記所定のメッセージは、３ＧＰＰ（Ｔｈｉｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）に規定されるＯｖｅｒｌｏａｄ　Ｓｔａｒｔメッセージである、
ことを特徴とする請求項２４に記載のプログラムを記録した記録媒体。 The predetermined message is an Overload Start message defined in 3GPP (Third Generation Partnership Project).
25. A recording medium on which the program according to claim 24 is recorded. 　前記動作情報は、受信を拒否するトラヒックの割合を示す規制情報を含む、
ことを特徴とする請求項２４乃至２５のいずれか１項に記載のプログラムを記録した記録媒体。 The operation information includes restriction information indicating a percentage of traffic that is refused to be received.
26. A recording medium on which the program according to any one of claims 24 to 25 is recorded. 　前記規制情報は、３ＧＰＰに規定されるＴｒａｆｆｉｃ　Ｌｏａｄ　Ｒｅｄｕｃｔｉｏｎ　Ｉｎｄｉｃａｔｉｏｎである、
ことを特徴とする請求項２６に記載のプログラムを記録した記録媒体。 The restriction information is Traffic Load Reduction Indication specified in 3GPP.
A recording medium on which the program according to claim 26 is recorded. 　複数の前記基地局装置に接続された前記装置のプロセッサに、
前記制御装置から受信した３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｓｔｏｐメッセージを、前記基地局装置毎に所定時間、時間を空けて送信する送信処理を行わせる、
ことを特徴とする請求項２４乃至２７のいずれか１項に記載のプログラムを記録した記録媒体。 A processor of the device connected to a plurality of the base station devices,
An overload stop message defined in 3GPP received from the control device is transmitted for a predetermined time for each base station device, and transmission processing is performed.
A recording medium on which the program according to any one of claims 24 to 27 is recorded. 　前記制御処理は、
　第１の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を記憶手段に記憶する第１の呼制御処理と、
　第２の前記制御装置から受信した前記メッセージに含まれる前記識別子と前記動作情報の組を前記記憶手段に記憶する第２の呼制御処理と、
　所定の契機に、前記記憶手段に記憶された前記識別子と前記動作情報との組を全て前記メッセージに設定して前記基地局装置に送信する第３の呼制御処理と、を有する、
ことを特徴とする請求項２４乃至２８のいずれか１項に記載のプログラムを記録した記録媒体。 The control process is
A first call control process for storing a set of the identifier and the operation information included in the message received from the first control device in a storage unit;
A second call control process for storing in the storage means a set of the identifier and the operation information included in the message received from the second control device;
A third call control process for setting all the sets of the identifier and the operation information stored in the storage means to the message and transmitting the message to the base station device at a predetermined opportunity,
A recording medium on which the program according to any one of claims 24 to 28 is recorded. 　前記識別子は、３ＧＰＰに規定されるＧＵＭＭＥＩであり、
　前記動作情報は、３ＧＰＰに規定されるＯｖｅｒｌｏａｄ　Ｒｅｓｐｏｎｓｅである、ことを特徴とする請求項２４乃至２９のいずれか１項に記載のプログラムを記録した記録媒体。 The identifier is GUMMEI defined in 3GPP,
30. The recording medium recorded with the program according to claim 24, wherein the operation information is an Overload Response defined in 3GPP. 　前記制御装置に接続された前記装置は、ＨｅＮＢ－ＧＷ（Ｈｏｍｅ　ｅＮｏｄｅＢ　Ｇａｔｅｗａｙ）である、
ことを特徴とする請求項２４乃至３０のいずれか１項に記載のプログラムを記録した記録媒体。 The device connected to the control device is a HeNB-GW (Home eNodeB Gateway).
A recording medium on which the program according to any one of claims 24 to 30 is recorded.
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