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WO2012041184A1 - Procédé et dispositif côté réseau d'instruction de réduction de puissance de gestion de session, et procédé et équipement utilisateur de réduction de puissance de gestion de session - Google Patents

Procédé et dispositif côté réseau d'instruction de réduction de puissance de gestion de session, et procédé et équipement utilisateur de réduction de puissance de gestion de session Download PDF

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Publication number
WO2012041184A1
WO2012041184A1 PCT/CN2011/080016 CN2011080016W WO2012041184A1 WO 2012041184 A1 WO2012041184 A1 WO 2012041184A1 CN 2011080016 W CN2011080016 W CN 2011080016W WO 2012041184 A1 WO2012041184 A1 WO 2012041184A1
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Prior art keywords
apn
message
session management
network side
side node
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PCT/CN2011/080016
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English (en)
Chinese (zh)
Inventor
艾明
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control

Definitions

  • a session management backoff indication method, a network side device, and a session management backoff method and user equipment is submitted to the Chinese Patent Office on September 30, 2010, and the application number is 201010503807.9.
  • the invention name is "a session management backoff instruction”. The priority of the method and the network side device of the Chinese Patent Application, the entire contents of which is incorporated herein by reference.
  • the present invention relates to the field of wireless communication technologies, and in particular, to a session management backoff indication method and a network side device. Background technique
  • the access point name is the subscription parameter of the user equipment (UE). Different APNs correspond to different access points in the network, and the UE passes the Mobility Management (Mobility Management).
  • Entity MME
  • MME Mobility Management Entity
  • the MME determines that the connection request carries the APN, establishes a connection to the APN by establishing a connection between the access points corresponding to the APN, and determines that the connection request does not carry the APN.
  • the APN signed by the UE is assigned a default APN to establish a connection with the default APN.
  • the UE initiates a session management message carrying the activated APN, and performs session management by the MME corresponding to the activated access point of the activated APN.
  • an APN-based congestion control mechanism which is mainly as follows:
  • the MME is responsible for starting or stopping the congestion control of different APNs. If congestion control is initiated for an APN, it indicates that the APN congestion is determined according to a specific rule, and congestion control is required, and the connection request and session for the APN that opens the congestion control mechanism are rejected. management.
  • the MME When receiving the connection request sent by the UE, the MME determines that the connection request carries the APN, and determines that the connection is initiated.
  • the APN's congestion control mechanism When the APN's congestion control mechanism, it refuses to establish a connection with the APN, otherwise it establishes a connection to the APN.
  • the MME sends a connection reject message to the UE, indicating that the connection request of the UE is rejected.
  • the connection reject message carries the session management backoff timer of the APN, and the standard uses the backoff time identified by the specific format to identify the session management backoff timer and its timing. duration.
  • the UE After receiving the connection reject message, the UE starts the session management backoff timer corresponding to the APN according to the indication of the connection reject message, and does not initiate the connection request carrying the APN before the session management backoff timer expires, but may initiate carrying other APN connection request.
  • the MME determines that the APN is not carried in the connection request, and assigns a default APN according to the APN that the UE subscribes to. If the default APN congestion control mechanism is enabled, the MME refuses to establish a connection with the default APN. Then establish a connection to the default APN.
  • the MME indicates to reject the connection request of the UE by sending a connection reject message to the UE, and the connection reject message also carries a session management backoff timer corresponding to the default APN. After receiving the connection reject message, the UE initiates a session management backoff timer corresponding to the default APN. Before the session management backoff timer expires, the UE does not initiate a connection request carrying the default APN, and may initiate another APN carrying the own subscription. Connection request.
  • the UE when the UE has four subscribed APNs, they are APN1, APN2, APN3, and APN4.
  • the MME has enabled congestion control mechanisms for APNl, APN2, APN3, and APN4.
  • the MME receives the connection request and finds that APN2 and APN4 have enabled the congestion control mechanism. According to the existing method, the MME only indicates that the UE is started and in the connection reject message.
  • APN4 corresponds to the session management backoff timer TIMER4 and its timing duration. Thereafter, the UE cannot initiate a connection request carrying APN4 before the session management backoff timer of the APN4 times out, but the UE can still initiate carrying the APN2.
  • APNl or APN3 connection request If the UE subsequently initiates a connection request carrying APN2 immediately, the above mechanism will also be rejected and the APN2 session management backoff timer TIMER2 will be started.
  • the prior art causes the UE to initiate a connection request or a session management message to the APN in which the congestion control mechanism is enabled. If the MME rejects the connection request, the UE and the network resources are wasted. The user experience is not good, especially when multiple APs of the UE are enabled with the congestion control mechanism. If the network does not reject the connection request or the session management message, the load of the access point is further increased, resulting in more serious congestion. Summary of the invention
  • the network side node When the network side node needs to send a message to the user equipment UE, determining, by the UE, the access point name APN, the APN of the congestion control mechanism is enabled;
  • the network side node sends a message to the UE, where the session management backoff timer corresponding to each APN that opens the congestion control mechanism is carried.
  • the user equipment UE receives the message sent by the network side node, and determines an APN list including multiple access point names APN, and a session management backoff timer corresponding to each APN;
  • the UE starts a session management backoff timer corresponding to each APN in the APN list;
  • the network side device of the session management backoff indication provided by the embodiment of the present invention includes:
  • the congestion control APN determining unit is configured to: when the UE needs to send a message to the UE, determine an APN in which the UE is subscribed to the access point name APN and the congestion control mechanism is enabled;
  • the congestion indication unit is configured to carry, in the message, a session management backoff timer corresponding to each of the APNs that open the congestion control mechanism.
  • a receiving unit configured to receive a message sent by a network side node
  • a timer starting unit configured to start, according to the APN list that includes multiple APNs in the message, a session management backoff timer corresponding to each APN in the APN list;
  • the session management backoff unit is configured to stop initiating the connection request and the session management message carrying each of the APNs before the session management backoff timer of each APN expires according to the backoff time corresponding to each APN in the message. .
  • the session management backoff indication method and the network side device, the session management backoff method and the user equipment provided by the present invention have the following beneficial effects: Since the access point corresponding to the APN that the UE subscribes to, all the access points that are congested are in the Indicates to the UE in the same return message, which saves signaling overhead between the UE and the network, improves the user experience, and avoids more congestion. DRAWINGS
  • FIG. 1 is a flowchart of a session management backoff indication method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a session management backoff method according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of a network side device for performing a session management backoff indication according to an embodiment of the present invention
  • FIG. 4 is a structural diagram of a user equipment for performing session management backoff according to an embodiment of the present invention. detailed description
  • the session management backoff indication method, the network side device, the session management backoff method, and the user equipment proposed by the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.
  • the APN-based congestion control mechanism is discussed, and it is determined that this mechanism can also be used for APN congestion caused by common UEs.
  • the network side node instructs the UE to start the session management backoff timer of the APN, and the UE starts immediately after receiving the indication.
  • the session management backoff timer of the APN does not initiate an access point connection request corresponding to the APN until the session management backoff timer expires.
  • the existing congestion control mechanism is applied to the situation where the UE subscribes to multiple APNs and multiple APNs open the congestion control mechanism. Shape, resulting in waste of UE and network resources, and the user experience is not good. Therefore, the embodiment of the present invention provides a session management backoff indication method, as shown in FIG. 1 , including:
  • Step S101 When the network side node needs to send a message to the UE, determine that the APN of the APN that is subscribed by the UE has the APN with the congestion control mechanism enabled;
  • Step S102 The network side node sends a message to the UE, where the session management backoff timer corresponding to each APN that starts the congestion control mechanism is carried.
  • the access point here is specifically a Packet Data Network (PDN), and different APNs correspond to different PDNs. Therefore, the connection established between the UE and the access point in this embodiment is called a PDN connection.
  • PDN Packet Data Network
  • the method of the present invention can be applied to an Evolved Packet System (EPS), and can also be applied to a GPRS system.
  • EPS Evolved Packet System
  • the network side node herein refers to a mobility management entity MME.
  • the network side A node refers to a Serving GPRS Support Node (SGSN) serving a General Packet Radio Service (GPRS).
  • SGSN Serving GPRS Support Node
  • GPRS General Packet Radio Service
  • the embodiment of the present invention takes the MME of the EPS system as an example.
  • the network side node maintains the APN with multiple UE subscriptions. If the network side node determines that a certain APN has a congestion control mechanism for all APNs maintained, the network side determines that the APN is congested according to a specific rule and needs congestion control.
  • the network side determines how the APN is congested according to a specific rule and needs to perform congestion control, which can be implemented by using existing technologies, and will not be described in detail herein.
  • connection request or session management message sent by the UE to the network side node generally only carries one APN that the UE subscribes to, and the existing method is only for the APN.
  • the APN is determined to enable the congestion control mechanism
  • the session management with the APN is backed off.
  • the timer of the present invention determines whether the congestion control mechanism is enabled for all APNs subscribed by the UE.
  • the embodiment of the present invention utilizes a timing of sending a message to the UE, for example, an active-initiated message or a response message to the UE request message, and a session management back-off timer corresponding to all APNs in the APN that the UE subscribes to have the congestion control mechanism enabled. Therefore, when the UE receives the message, the session management backoff timer corresponding to each APN in the message is started.
  • the above-mentioned session management backoff indication method provided by the present invention determines whether all the APNs that are subscribed to by the UE determine whether the congestion control mechanism is enabled, and when the UE sends a message to the UE, all the APNs of the APN that are contracted by the UE are enabled.
  • the respective session management backoff timers are sent to the UE together, so that the session management backoff timer corresponding to all the APNs that are likely to be accessed by the UE may be indicated to the UE together, and the UE is in each APN.
  • the signaling overhead between the UE and the network improves the user experience while avoiding more congestion.
  • the foregoing message in this embodiment specifically includes the following content:
  • APN list consisting of APNs that have congestion control mechanisms enabled
  • the backoff time corresponding to each APN in the APN list the backoff time indicating the session management backoff timer in a specific format.
  • the UE shall start the session management backoff timer of the APN in the APN list, and the backoff time corresponding to any APN in the APN list represents the time duration of the session management backoff timer corresponding to the APN.
  • the foregoing message sent by the network side node in the embodiment of the present invention is specifically, when the network side node receives the connection request that carries the APN sent by the UE, and returns a connection rejection message to the UE when the APN starts the congestion control, or
  • the APN activates the default bearer request message returned to the UE when congestion control is not enabled. That is, the two types of response messages of the existing connection request are extended.
  • the connection rejection message is also used by other UEs to enable the congestion control mechanism.
  • the APN session management backoff timer carries a connection reject message.
  • connection request of the APN that is sent by the UE that is received by the network side node in this embodiment is specifically a connection request sent by the UE in the attaching process, or a connection request sent by the UE after being attached to the network, for example, sent in a cell update process.
  • Connection request is specifically a connection request sent by the UE in the attaching process, or a connection request sent by the UE after being attached to the network, for example, sent in a cell update process.
  • Connection request may also be a session management response message returned by the network side node to the UE according to the session management process when receiving the session management message carrying the APN sent by the UE.
  • a session management backoff method is also provided in the embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step S201 The user equipment UE receives the message sent by the network side node.
  • the message carries the session management backoff timer of all APNs in the APN that the UE subscribes to, and the form of the message is consistent with the corresponding description in the foregoing embodiment.
  • the network side node may specifically be an SGSN or an EPS system in the GPRS system. MME in.
  • Step S202 The UE starts a session management backoff timer corresponding to each APN in the APN list carried in the message according to the message sent by the network side node.
  • the UE itself subscribes to multiple APNs.
  • the UE For the activated APN, the UE establishes a connection with the APN, and the UE sends a session management message to the APN as needed.
  • the UE For the inactive APN, the UE does not establish a connection with the APN, and the UE sends a connection request to the APN as needed.
  • the session management backoff timer of all APNs (including active and inactive) in the APN list can be simultaneously started.
  • Step S203 For each APN in the APN list, the UE indicates according to the message sent by the network side node.
  • the backoff time corresponding to the APN stops sending a connection request and session management message for the APN before the session management backoff timer of the APN times out.
  • the UE may initiate a connection request and a session management message carrying a specific APN, and the specific APN refers to an APN other than the APN included in the APN list in the APN that the UE subscribes to.
  • the session management message of the APN if it is an inactive APN, stops initiating a connection request carrying the APN. Therefore, it is avoided to send a connection request and a session management message to an APN that can access the congestion control mechanism.
  • the session management backoff indication method and the session management backoff method provided by the present invention can be applied to an EPS system or a GPRS system.
  • the following takes the EPS system as an example, and provides a specific implementation manner of the session management backoff indication method and the session management backoff method according to the specific application scenario.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the application scenario is specifically as follows: The UE subscribes to APN1, APN2, APN3, APN4, and APN5; the UE has attached to the network through an Attach procedure, and has activated the connection to APN1 and APN2, and APN1 and APN2 are activated APNs, APN3. , APN4 and APN5 are inactive APNs.
  • the UE sends a PDN connection request carrying the access point name of the APN3 to the MME, requesting to establish a connection with the APN3.
  • the MME receives the connection request from the UE, the MME has initiated a congestion control mechanism for APNK APN3 and APN4, but does not initiate a congestion control mechanism for APN2.
  • the MME sends a PDN connection reject message to the UE, where the message includes APN1, APN3, APN4 and their respective backoff times.
  • the UE After receiving the PDN connection reject message returned by the MME, the UE starts the session management backoff timers of APN1, APN3, and APN4 respectively, and according to the corresponding session management backoff time, the UE cannot initiate the timeout before the three session management backoff timers expire.
  • a session management message carrying APN1 cannot initiate a connection request message carrying APN3 and APN4.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the application scenario is specifically as follows: The UE subscribes to APN1, APN2, APN3, APN4, and APN5; the UE has attached to the network through the attach procedure, and has activated the connection to APN1 and APN2, APN1, APN2 are activated APN, APN3, APN4, and APN5 is an inactive APN.
  • the UE sends a connection request carrying the APN3 to the MME, requesting to establish a connection with the APN3.
  • the MME receives the connection request from the UE, the MME has initiated a congestion control mechanism for APN1 and APN4, but does not initiate a congestion control mechanism for APN2 and APN3.
  • the MME sends an activation default bearer request to the UE, where the message includes APN 1 APN4 and their respective backoff times.
  • the UE After receiving the activated default bearer request message returned by the MME, the UE activates the default of APN3 according to the existing process.
  • the bearer needs to start the session management backoff timer of APN1 and APN4 respectively. According to the corresponding backoff time, the UE cannot initiate the session management message carrying APN1 and cannot initiate the APN4 carrying the APN1 before the two session management backoff timers expire. Connection request message.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • a specific content form of the content of the PDN connection reject message is given. As shown in Table 1 below, the YY item is added to the message content in the message content relative to the existing PDN connection reject message.
  • the definition of the other items in the PDN connection reject message may be referred to the definition of the existing standard.
  • the following is a description of the backoff timer list (IE) added in the embodiment of the present invention.
  • the backoff time list here specifically includes all congestion occurrences.
  • the APN list consisting of the corresponding APNs of the access points; and the Back Off timer corresponding to each APN in the APN list.
  • Table 2 the definition of the Back Off timer list IE in this embodiment is as follows:
  • the identifier of each APN in the Back Off Timer list IE uses the BEARER ID corresponding to the activated connection of the UE to the APN.
  • the above embodiment of the present invention is only a PDN CONNECTIVITY REJECT message.
  • it may be any session management response message returned by the network after receiving the session management message sent by the UE.
  • congestion will be enabled.
  • the session management backoff timer of the APN of the control mechanism is sent to the UE by using the coding method mentioned in the third embodiment.
  • These session management response messages can be any of the following messages:
  • a BEARER RESOURCE ALLOCATION REJECT message a BEARER RESOURCE MODIFICATION REJECT message; a DEACTIVATE EPS BEARER CONTEXT REQUEST message;
  • the trigger conditions, the sending subject and the role of each of the above messages are sent. See the definitions in the existing standards. Detailed.
  • the foregoing embodiment is a specific implementation process when applied to an EPS system.
  • the specific implementation manner is the same as the foregoing embodiment, except that the network side node is an SGSN.
  • the name of the PDN connection related signaling message between the SGSN and the UE is also different. Specific differences are given below for each of the above embodiments.
  • the UE is referred to as a mobile station (MS) in the GPRS related specification.
  • MS mobile station
  • the setting scene is unchanged.
  • the UE needs to activate the connection to APN3, it establishes a connection to APN3 by sending an Activate Packet Data Protocol (PDP) Context Request (ACTIVATE PDP CONTEXT REQUEST) message.
  • PDP Packet Data Protocol
  • ACTIVATE PDP CONTEXT REQUEST Activate Packet Data Protocol
  • the UE sends a message to the network node SGSN, which is an ACTIVATE PDP CONTEXT REQUEST message, where the request message includes the ⁇ to be established, and when the SGSN accepts the request, it returns to the UE.
  • the message is an ACTIVATE PDP CONTEXT ACCEPT message.
  • the SGSN rejects the request, the message returned to the UE is an ACTIVATE PDP CONTEXT REJECT message.
  • the network can also initiate a PDP context request, which is a network initiated context activation process.
  • PDP context request is a network initiated context activation process.
  • the SGSN sends a Request PDP Context Context (REQUEST PDP CONTEXT ACTIVATION) message to the UE.
  • REQUEST PDP CONTEXT ACTIVATION Request PDP Context Context
  • the UE initiates the PDP context activation process initiated by the UE. If the UE does not accept the request, then the request PDP context activation is denied to the SGSN.
  • the signaling messages sent by the network to the UE can be used to carry APN1, APN4 and their respective session management backoff times.
  • the session management message sent by the SGSN to the UE may carry the APN with congestion control and the corresponding session management backoff time. These messages are:
  • Modify the PDP context request (MODIFY PDP CONTEXT REQUEST) message
  • Modify the PDP context accept ( MODIFY PDP CONTEXT ACCEPT ) message
  • SM Session Management
  • STATUS Session Management
  • the APN and the session management backoff timer carried in the foregoing message may also use the APN and session management backoff timer coding formats mentioned in Embodiment 3.
  • a network side device for providing a session management backoff indication.
  • the method includes: an open congestion control APN determining unit 301, configured to determine the UE when a message needs to be sent to the UE.
  • the APN of the subscribed access point name APN is used to enable the congestion control mechanism.
  • the congestion indication unit 302 is configured to send a message to the UE, where the session management backoff time information corresponding to the APN of each of the congestion control mechanisms is carried.
  • the network side device is specifically an SGSN in a general packet radio service system, or a mobility management entity in an EPS system.
  • the open congestion control APN determining unit 301 is specifically configured to send an APN list including the APN in which the congestion occurs, and a backoff time message corresponding to each APN in the APN list. That is, the message sent by the open congestion control APN determining unit 301 to the UE includes: an APN list consisting of the APNs that open the congestion control mechanism; and a backoff time corresponding to each APN in the APN list.
  • the user equipment of the session management backoff is further provided in the embodiment of the present invention.
  • the method includes: a receiving unit 401, configured to receive a message sent by a network side node, and determine, by using the access point name, an APN.
  • the APN stops sending a connection request and session management message for the APN before the session management backoff timer of the APN times out.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention a trait au domaine technique des communications sans fil. L'invention concerne un procédé d'instruction de réduction de puissance de gestion de session. Le procédé comprend les étapes suivantes: lorsqu'un message doit être transmis vers un équipement utilisateur, la confirmation par un nœud côté réseau parmi des noms de points d'accès abonnés auxquels l'équipement utilisateur est abonné d'un nom de point d'accès comprenant un mécanisme de contrôle de congestion activé; et la transmission par le nœud côté réseau vers l'équipement utilisateur du message contenant l'information d'instant de réduction de puissance de gestion de session correspondant à chaque nom de point d'accès comprenant le mécanisme de contrôle de congestion activé. L'invention concerne également un dispositif côté réseau pour une instruction de réduction de puissance de gestion de session, et un procédé et un équipement utilisateur de réduction de puissance de gestion de session. La présente invention améliore les procédures d'instruction de réduction de gestion de session, préserve les ressources d'équipement utilisateur et côté réseau, et empêche la survenance de congestion additionnelle.
PCT/CN2011/080016 2010-09-30 2011-09-22 Procédé et dispositif côté réseau d'instruction de réduction de puissance de gestion de session, et procédé et équipement utilisateur de réduction de puissance de gestion de session Ceased WO2012041184A1 (fr)

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CN201010503807.9 2010-09-30

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WO2017086617A1 (fr) * 2015-11-19 2017-05-26 엘지전자 주식회사 Procédé de fonctionnement pour un terminal fonctionnant en situation de congestion de réseau dans un système de communication sans fil et appareil pour celui-ci

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CN103067967B (zh) * 2013-01-21 2016-02-24 电信科学技术研究院 一种会话管理退避定时器的控制方法及终端
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CN112637928B (zh) * 2016-09-07 2022-06-14 华为技术有限公司 接入控制方法和装置
JP6869908B2 (ja) * 2018-01-12 2021-05-12 シャープ株式会社 Ｕｅ及びｕｅの通信制御方法
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