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WO2011023090A1 - Procédé et équipement de radiomessagerie de traitement de femtocellule sur une scène d'accession - Google Patents

Procédé et équipement de radiomessagerie de traitement de femtocellule sur une scène d'accession Download PDF

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Publication number
WO2011023090A1
WO2011023090A1 PCT/CN2010/076258 CN2010076258W WO2011023090A1 WO 2011023090 A1 WO2011023090 A1 WO 2011023090A1 CN 2010076258 W CN2010076258 W CN 2010076258W WO 2011023090 A1 WO2011023090 A1 WO 2011023090A1
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WIPO (PCT)
Prior art keywords
network element
downlink data
context information
base station
data packet
Prior art date
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PCT/CN2010/076258
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English (en)
Chinese (zh)
Inventor
张艳平
胡伟华
陆伟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
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Publication of WO2011023090A1 publication Critical patent/WO2011023090A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for processing paging in a home base station access scenario. Background technique
  • Femtocel l also known as femtocell base station or 3G (Third-generation mobile communication technology) access point
  • 3G Three-generation mobile communication technology
  • the UE is in the idle state when the home base station or the home base station gateway device receives the data packet of the UE, the downlink data cannot be normally sent to the UE, and the user service cannot be performed normally.
  • the embodiment of the invention provides a method and a device for processing a paging in a scenario where a home base station is connected to the scenario, so as to solve the problem that the downlink data packet cannot be sent to the UE when the UE is in an idle state in the scenario of the home base station access.
  • a method for processing paging in a scenario of a home base station accessing including:
  • the access network element When the user terminal UE is in the idle state, the access network element stores the context information of the UE; the access network element receives the downlink data packet sent to the UE in the idle state, according to the foregoing description of the UE. The incoming network element forwards the downlink data packet to the serving gateway through the packet data gateway P-GW, instructing the serving gateway to initiate paging to the UE, and establish a connection.
  • a method for processing a call in a home base station scenario including:
  • the access network element When the user terminal UE is in an idle state, the access network element stores context information of the UE; the access network element receives a downlink data packet that is sent to the UE in an idle state, and determines, according to the context information, The downlink data packet belongs to the UE, and the connection is established according to the IP address of the downlink user plane and the paging initiated by the UE.
  • a method for processing a call in a home base station scenario including:
  • the access network element When the user terminal UE is in an idle state, the access network element stores context information of the UE; and the access network element establishes a GPRS tunnel protocol user plane part GTP-U tunnel between the access data element and the packet data gateway to which the UE belongs. ;
  • the access network element Receiving, by the access network element, a downlink data packet that is sent to the UE in an idle state, determining, according to the context information, that the downlink data packet belongs to the UE, and using the downlink data packet to pass the GTP-U tunnel Sending to the packet data gateway, the downlink data packet is forwarded by the packet data gateway to the serving gateway, and is used to instruct the service gateway to initiate paging to the UE to establish a connection.
  • a method for processing a call in a home base station scenario including:
  • the access network element When the user terminal UE is in the idle state, the access network element stores the context information of the UE; the access network element receives the downlink data packet sent to the UE in the idle state, and determines the location according to the context information. Describe that the downlink data packet belongs to the UE;
  • the access network element sends a downlink data notification message to the mobility management network element, where the downlink data notification message includes an identifier of the UE, and the downlink data notification message is used to notify the mobility management network element A paging is initiated to the UE by the access network element to establish a connection.
  • a device for processing a call in a home base station scenario including:
  • a storage unit configured to: when the user terminal UE is in an idle state, save context information of the UE; a receiving unit, configured to receive a downlink data packet that is sent to the UE in an idle state; and a replacement unit, configured to The context information of the UE held by the storage unit will receive the
  • the P-GW forwards to the serving gateway, instructing the serving gateway to initiate paging to the UE to establish a connection.
  • a device for processing a call in a home base station scenario including:
  • a storage unit configured to: when the user terminal UE is in an idle state, save context information of the UE; a receiving unit, configured to receive a downlink data packet sent to the UE in an idle state; and a attribution determining unit, configured to receive The context information received by the unit determines that the downlink data packet belongs to the UE;
  • the first sending unit sends the downlink data packet to the serving gateway according to the IP address of the downlink user plane and the tunnel identifier of the downlink user plane, and instructs the serving gateway to initiate paging to the UE to establish a connection.
  • a device for processing a call in a home base station scenario including:
  • a storage unit configured to save context information of the UE when the user terminal UE is in an idle state
  • a tunnel establishing unit configured to establish a GPRS tunneling protocol user plane part GTP-U between the packet data gateway to which the UE belongs Tunnel
  • a receiving unit configured to receive a downlink data packet that is sent to the UE in an idle state
  • a home determining unit configured to determine, according to the context information received by the receiving unit, that the downlink data packet belongs to the UE
  • a device for processing a call in a home base station scenario including:
  • a storage unit configured to: when the user terminal UE is in an idle state, save the context information of the UE; and the receiving unit is configured to receive a downlink data packet that is sent to the UE in an idle state;
  • a determining unit configured to determine, according to the context information received by the receiving unit, that the downlink data packet belongs to the UE;
  • a third sending unit configured to send a downlink data notification message to the mobility management network element, where the downlink data notification message includes an identifier of the UE, where the downlink data notification message is used to notify the mobility management network element to pass the The incoming network element initiates a page to the UE to establish a connection.
  • the embodiment of the invention provides a method and a device for processing a paging in a home base station access scenario.
  • the UE saves the context information of the UE when the UE is in an idle state, so that the downlink data packet can be sent to
  • the UE ensures that the service is normally performed when the UE is in an idle state.
  • FIG. 1 is a schematic diagram of local grooming in a 3G home access scenario
  • FIG. 2 is a schematic diagram of a method for processing paging in a home access scenario according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a method for releasing an S1 connection according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a processing method for paging in a home base station access scenario according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a method for obtaining, by a home base station, a UE accessing a public network address of a P ⁇ network during a PDN connection establishment process according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a processing method for paging in a home base station access scenario according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a method for a home base station to acquire a downlink user plane tunnel identifier and an IP address according to an embodiment of the present invention:
  • FIG. 8 is a schematic diagram of another method for processing paging in a home base station access scenario according to an embodiment of the present disclosure
  • FIG. 9 is a schematic diagram of another method for processing paging in a home base station access scenario according to an embodiment of the present disclosure
  • FIG. 10 is a block diagram of a processing device for a call in a scenario of a home base station according to an embodiment of the present invention
  • FIG. 11 is a block diagram of a device for processing a call in a scenario of a home base station according to an embodiment of the present invention
  • Another block diagram of a processing device for a call in a home base station scenario is provided.
  • FIG. 13 is a block diagram of another processing device for a call in a home base station scenario according to an embodiment of the present invention.
  • FIG. 1 it is a local grooming diagram in a 3G home access scenario.
  • the user's service flow can be directly connected to the Internet through the backhaul network after being accessed through the air interface of the 3G home base station.
  • the home base station is referred to as the Internet interface for short; or the user's service flow directly accesses the Internet after passing through the 3G home base station gateway, which is referred to as the home base station gateway out of the Internet interface.
  • Both of the above methods can make the user's service traffic not pass through the user plane gateway of the core network, thereby saving the carrier's transmission and the core network user plane resources.
  • the data stream (downstream data) from the internet can also be sent directly to the UE by the home base station or the home base station gateway device.
  • the evolved network is taken as an example.
  • the home base station Henodeb (which can also be represented as HeNB) sends out an internet interface. If the home base station gateway is configured in the system, the home base station gateway Henodeb GW can also output an internet interface, and the present invention is implemented. In the example, the home base station can be replaced by a home base station gateway. In this manual, the home base station Henodeb outgoing internet interface is taken as an example.
  • the macro base station may directly have an internet interface. Therefore, although the home base station access scenario is taken as an example, the invention can also be applied to the case where the macro base station directly exits the internet interface.
  • a method for processing paging in a home access scenario includes:
  • Step 201 When the user terminal UE is in an idle state, the access network element stores the context information of the UE.
  • Step 202 The access network element receives a downlink data packet that is sent to the UE in the idle state, and replaces the destination address of the downlink data packet with the public network address of the UE according to the context information of the UE.
  • the public network address may be a global unicast address.
  • Step 203 The access network element forwards the downlink data packet to a serving gateway through a Packet Data Network Gateway (P-GW), and instructs the serving gateway to initiate paging to the UE. establish connection.
  • P-GW Packet Data Network Gateway
  • An embodiment of the present invention provides a method for processing a paging in a home access scenario, by storing context information of a UE in an idle state on a home base station, so that when the home base station receives a downlink data packet sent from the internet to the UE, The destination address of the downlink data packet may be changed to the public network address of the UE according to the context information of the UE.
  • the downlink data packet Since the destination address in the downlink data packet is the public IP address of the UE, the downlink data packet is routed to the corresponding P-GW, thereby The downlink data packet is further sent to the serving gateway, and the service gateway initiates a call, so that the UE establishes a connection with the home base station, so that the downlink data packet can be sent to the UE, and the normal operation of the service when the UE is in an idle state is ensured.
  • the access network element is a home base station or a home base station gateway.
  • the home base station In the idle state of the UE, in order to enable the home base station to locate the data packet to the home user (or the home UE) when receiving the downlink data packet, the home base station stores the context information of the UE, such as the IP address of the UE and the UE identifier. , TFT (Traffic Flow Template) information for routing data packets, public IP address, and so on.
  • TFT Traffic Flow Template
  • the home base station deletes the context information of the UE, so that when the UE is in the idle state, the home There is no context information of the UE on the base station. Therefore, in order to complete the implementation method of the embodiment, the S1 connection release process of the UE in the prior art needs to be modified accordingly.
  • a method for releasing an S1 connection is provided in an embodiment of the present invention, so that when the UE is in an idle state, the home base station stores context information of the UE, where the method includes:
  • Step 301 If the home base station detects that the signaling connection of the S1 interface needs to be released, the home base station sends a UE context release request to the mobility management network element.
  • Step 302 The mobility management network element sends a release access bearer request to the serving gateway.
  • the message may be triggered by the UE context release request sent by the home base station in step 1, or may be initiated by the mobility management network element to initiate the S1 connection release process.
  • Step 303 The serving gateway receives the release access bearer request, and sends a release bearer response to the mobility management network element.
  • Step 304 The mobility management network element sends a UE context release command to the home base station, where the UE context release command includes a release cause value.
  • Step 305 The home base station sends an RRC connection release message to the UE in an acknowledge mode, and receives an acknowledgement message returned by the UE. Further, in this step, the home base station determines, according to the cause value of the release in the UE context release command, whether to retain the context information of the UE, and when the reason value of the release is not detach, but Normal Release, When Authentication failure, Unspecified, etc., the home base station reserves UE context information for subsequent data transmission.
  • Step 306 The home base station sends a UE context release complete message to the mobility management network element.
  • the context information includes an IP address of the UE and an identifier of the UE.
  • the home base station may match the IP address of the UE in the context information according to the destination address of the downlink data packet.
  • the home subscriber of the downlink data packet can be located.
  • the method for releasing the S1 connection is such that when the UE is in the idle state, the context information of the UE may be saved on the home base station, so that when the home base station receives the downlink data packet of the internet, the context may be Information is located at the user.
  • the home base station saves the context of the UE when the UE is in an idle state.
  • the information, that is, the subsequent embodiment is based on the embodiment corresponding to FIG.
  • the home base station uses the HeNB as an example
  • the mobility management network element uses the MME (Mobility Management Entity mobility management).
  • the serving gateway uses the S-GW (Serving Gateway) as an example.
  • the P-GW uses the PDN GW as an example.
  • the PCRF is the Policy and Charging Rule Function, that is, the policy and charging rule function unit. .
  • the public network address used by the UE to access the PDN network is obtained by the home base station, and the planned public network address directly obtained in the network (for example, the PDN GW is allocated by using the bearer activation process, or the activated DHCP (Dynamic)
  • the Host Configuration Protocol is a public network address that is translated by the 3GPP Network Address Translation (NAT) function.
  • the destination address of the data packet is changed to the public network address of the UE and is sent. Since the public network address of the UE is allocated by the 3GPP network, the data packet is routed to the P-GW of the serving PDN network.
  • the P-GW receives the data packet, it maps the data packet to a different bearer and sends it to the S-GW.
  • the S-GW does not have the corresponding downlink user plane information, and the S-GW can trigger the MME to initiate paging to the UE according to the prior art, and establish an air interface and an S 1 bearer.
  • the downlink data packet is no longer forwarded to the P-GW, but the data packet is directly sent to the UE through the air interface bearer.
  • the method for processing paging in a home base station access scenario includes the following steps:
  • Step 401 When the user terminal UE is in the idle state, the home base station saves the context information of the UE.
  • the specific embodiment is as described in the embodiment corresponding to FIG. 3, and details are not described herein.
  • Step 402 The home base station acquires a public network address of the UE accessing the PDN network.
  • the context information of the UE saved in the step 401 may include the identifier of the UE, the IP address of the UE, and the public network address.
  • the downlink data packet sent to the UE in the idle state is received.
  • the destination address of the downlink data packet and the IP address of the UE included in the context information of the UE may be matched, thereby obtaining a public network address of the UE;
  • the home base station obtains the public network address of the UE accessing the PDN network in the process of establishing the P ⁇ connection, and the process of establishing the PDN connection may be the default PDN connection process in the at tach process, or may be a proprietary P.
  • the process of establishing ⁇ may be the default PDN connection process in the at tach process, or may be a proprietary P.
  • Step 403 When the home base station receives the downlink data packet sent to the UE in the idle state, the home base station saves the context information of the UE, and may determine the home subscriber of the downlink data packet according to the context information of the UE. Then, the destination address of the downlink data packet is replaced with the public network IP address of the UE. Step 404: Since the destination address in the downlink data packet is the public network IP address of the UE, the downlink data packet is routed to the corresponding P-GW, and the PDN is used.
  • the gateway may forward the data packet to the serving gateway according to the existing processing procedure of receiving the data packet from the data network, and the serving gateway may use the prior art to page the UE to enable the UE to initiate
  • the air interface bearer is established with the S1 bearer, so that a connection is established between the home base station and the UE.
  • the home base station After the home base station finds that the air interface bearer and the S1 bearer are successfully established, the home base station does not need to send the data to the P-GW, but sends the data to the UE directly through the home base station.
  • the corresponding embodiment of the present invention provides a method for processing a paging in a home base station access scenario, by storing context information of the UE in an idle state on the home base station, so that when the home base station receives the information sent from the internet to the
  • the destination address of the downlink data packet may be changed to the public network address of the UE according to the context information of the UE, and the downlink data packet is used because the destination address in the downlink data packet is the public IP address of the UE.
  • the serving gateway initiates the call, so that the UE establishes a connection with the home base station, so that the downlink data packet can be sent to the UE, ensuring that the UE is in an idle state.
  • the embodiment of the present invention further provides that the home base station acquires the UE accessing the PDN network during the P ⁇ connection establishment process.
  • the method of the network address including: Step 501: The UE initiates a P ⁇ connection establishment request to the mobility management network element by using the home base station, and after receiving the PDN connection establishment request, the home base station can support the home base station to support LIPA (Loca l IP Acces s, local IP access).
  • LIPA Local IP access
  • the home base station may add an indication cell in the PDN connection establishment request to identify whether the home base station uses LIPA. It should be noted that whether the home base station supports LIPA means whether the home base station has an internet function; whether the home base station gateway supports LIPA means whether the home base station gateway has an internet function.
  • the home base station can decide whether to use LIPA according to the carrier configuration information.
  • the indication cell indicates that the specific name of the cell is not limited, and may be l ipa indicat ion or the like. Indication mode The embodiment of the present invention is not limited to:
  • the LIPA is used; if the indication is not included, the LIPA is not used, and vice versa; or
  • the stipulated value is used to identify whether to use the LIPA. For example, if the value of the cell is 0, the identifier is 1 or the value is 1 or the other digits are not used.
  • the indication message is included in the request message to identify the home base station to support LIPA for description. Subsequent embodiments are similar.
  • Step 502 The mobility management network element receives a PDN connection establishment request sent by the home base station, where the PDN connection establishment request includes an indication cell, and the mobility management network element sends a create session request message to the service gateway, where the message may include Indicate the cell.
  • the mobility management network element may be configured according to the operator, and optionally, according to the information reported by the access network element in step 1, whether the P ⁇ uses the LIPA, and when determining to use the LIPA, the mobility management network element. Adding an indication cell to the create session request message sent to the service gateway;
  • Step 503 The serving gateway sends a create session request message to the P-GW, where the message includes the indication cell.
  • Step 504 The P-GW receives the create session request message, and obtains a public network IP address corresponding to the UE.
  • the ⁇ gateway may determine whether the IP address allocated for the UE is a 3GPP private network address according to the operator configuration, and if yes, perform steps 504a, 504b;
  • Step 504a The P-GW sends a NAT address request message to the NAT server, requesting the NAT public network address corresponding to the UE.
  • Step 504b The NAT server receives the NAT address request message sent by the P-GW, and sends a NAT address request response message to the P-GW.
  • the NAT address request response message includes the public network address or public network address and port of the UE after the NAT. combination.
  • the NAT address request response message may include a public network address or a combination of a public network address and a port according to the NAT technology used by the NAT server.
  • Step 505 The P-GW and the PCRF perform an IP-CAN session establishment process.
  • Step 506 The P-GW sends a create session response message to the serving gateway, where the message includes a public network address of the UE or a combination of the public network address and the port.
  • the public network address may be a public network address allocated by the 3GPP network for the UE, or may be the public network address of the UE obtained by the P ⁇ gateway at the NAT server in steps 504a and 504b.
  • Step 507 The serving gateway sends a create session response message to the mobility management network element, where the message includes a public network address of the UE or a combination of the public network address and the port.
  • Step 508 The mobility management network element sends a bearer setup request to the home base station, including the public network address of the UE, and may also include the identifier of the user, where the user identifier may be a temporary identifier assigned by the mobility management network element to the user (including but not It is limited to P-TMSI/GUTI, MME UE SI AP ID, Iu connection number, etc.), and may also be the user's IMSI (Internat iona l Mob i le Subscr iber Ident i ty ).
  • the bearer setup request further includes a connection establishment completion message sent by the network side to the UE, where the connection establishment complete message includes an IP address allocated by the PDN gateway for the UE.
  • the home base station may parse the message, and obtain and save the IP address allocated by the PDN gateway for the UE. Binding the IP address to the user ID, so that when the home base station receives the downlink data packet, it can obtain the target IP address of the data packet. Know the home subscriber of this data packet.
  • the home base station may parse the message to obtain the TFT information, or the mobility management network element includes the TFT information in the bearer setup request message, and the home base station uses the TFT information to perform downlink bearer binding, and after receiving the user downlink data packet, the home base station The data packet is mapped to the corresponding radio bearer by using the TFT and sent to the UE.
  • Step 509 Perform a subsequent process of the PDN connection to complete the PDN connection establishment. It should be noted that, in step 508, the home base station has acquired the public network address of the UE, that is, the embodiment of the present invention does not limit the subsequent P ⁇ connection establishment procedure.
  • the subsequent P ⁇ establishment process may be: the radio side bearer establishment; the home base station sends a bearer setup response message to the mobility management network element; the UE sends a P ⁇ connection setup complete message to the mobility management network element through the home base station; the mobility management network
  • the meta sends a modify bearer reques t message to the serving gateway; the serving gateway sends a modify bearer reques t message to the P-GW; the P-GW gateway sends a modify bearer response message to the serving gateway; the monthly service gateway sends a modify bearer to the mobility management network element Response message.
  • the NAT server refers to a device unit that implements the NAT function, and does not specifically refer to a specific network device. It may be a separate NAT/NATP server, may be built in conjunction with the P-GW, or may be built in conjunction with the firewall, which is not limited in the embodiment of the present invention.
  • another method for processing paging in a home base station access scenario includes:
  • Step 601 When the user terminal UE is in an idle state, the access network element stores the context information of the UE.
  • Step 602 The access network element receives a downlink data packet that is sent to the UE in an idle state, and determines, according to the context information, that the downlink data packet belongs to the UE, according to an IP service gateway of a downlink user plane.
  • the UE initiates paging and establishes a connection.
  • the access network element is specifically a home base station or a home base station gateway.
  • the following takes a home base station as an example. Description.
  • the mobility management network element may be configured to send the downlink user plane IP address and the downlink user plane tunnel identifier to the mobility management network element, and the mobility management network element may send the downlink user plane IP address and the downlink user plane tunnel identifier in the bearer establishment process.
  • the home base station To the home base station;
  • the home base station receives the downlink data packet, and forwards the data to the serving gateway according to the IP address of the downlink user plane and the tunnel identifier of the downlink user plane, and the paging is triggered by the serving gateway.
  • the service request process is initiated. , establish wireless side and S1 bearer. Then, after the access network finds that the bearer is successfully established, the data packet is directly forwarded from the home base station, and is no longer forwarded through the serving gateway.
  • a method for acquiring a downlink user plane tunnel identifier and an IP address by a home base station includes:
  • Step 701 The UE initiates a connection establishment request to the mobility management network element by using the home base station, and after receiving the P ⁇ connection establishment request, the home base station adds an indication cell to the P ⁇ connection establishment request, where the indication cell is It is used to indicate whether the home base station supports LIPA. Specifically, this step is similar to step 501;
  • Step 702 The mobility management network element sends a create session request message to the service gateway, where the message may include the indication cell.
  • the mobility management network element may be configured according to an operator, optionally, according to step 1
  • the information reported by the access network element determines whether the P-type uses the LIPA, and when it is determined to use the LIPA, the indication information is added to the create session request message sent by the mobility management network element to the serving gateway;
  • Step 703 The serving gateway sends a create session request message to the P-GW.
  • Step 704 The P-GW and the PCRF perform an IP-CAN session establishment process.
  • Step 705 The P-GW returns a create session request response message to the serving gateway.
  • Step 706 The serving gateway sends a create session response message to the mobility management network element. If the indication message is included in the creation session request message sent by the mobility management network element to the serving gateway in step 602, it indicates that the P ⁇ network uses LIPA, and the service gateway sends the session response message to the mobility management network element.
  • Tunnel ID of the downstream user plane data carrying the serving gateway can be expressed as DL
  • the S-GW TEID (Tunnel Endpoint Ident if ier) can also carry the downlink user plane IP address. It should be noted that the IP address may be stored in the home base station. Therefore, the IP address is optional in this step. .
  • Step 707 The mobility management network element sends a bearer setup request message to the home base station.
  • the message includes the tunnel identifier DL S-GW TEID of the downlink user plane, and may also include a downlink user plane IP address.
  • the home base station After receiving the cell, the home base station saves the TEID or the TEID+IP, and is used by the home base station to forward the downlink data. package.
  • Step 708 The subsequent step may be a P ⁇ connection establishment process, which is not limited in the embodiment of the present invention.
  • the subsequent steps may be: radio side bearer establishment; the home base station sends a bearer setup response message to the mobility management network element;
  • the mobility management network element directly transmits a PDN connection establishment complete message;
  • the mobility management network element sends a modify bearer request message to the serving gateway;
  • the service gateway sends a modify bearer request message to the P-GW;
  • the P-GW sends a modify bearer request response to the serving gateway.
  • the message gateway sends a modify bearer request response message to the mobility management network element.
  • the home base station acquires the tunnel identifier and the IP address of the downlink user plane in the process of establishing the P-connection.
  • the inventors can understand that the home base station can also obtain the downlink in other processes.
  • the serving gateway provides the downlink user plane tunnel identification information for the mobility management network element, and sends the downlink user plane tunnel identifier to the home base station when the mobility management network element bearer is established, and the home base station receives the downlink user plane data of the idle state user. through this tunnel to send data to the service gateway, service gateway after receiving the data, by the mobility management NE initiates the process of paging the UE, the UE establishes an air interface and the S1 interface 7
  • the corresponding embodiment of the present invention provides a method for processing a call in a home base station access scenario.
  • the home base station stores the context information of the UE in the idle state, and obtains the downlink user plane tunnel identifier and the IP address, so that the family
  • the base station may establish a connection between the UE and the home base station, and send the downlink data packet to the UE, so that the service of the UE in the idle state can be performed normally.
  • FIG. 8 another method for processing paging in a home base station access scenario according to an embodiment of the present invention is provided.
  • Step 801 The UE initiates a P ⁇ connection establishment request to the mobility management network element by using the home base station, and after receiving the PDN connection establishment request, the home base station includes an indication cell in the PDN connection establishment request, where the indication cell is used. Indicates whether the home base station supports LIPA. Specifically, this step is similar to step 501;
  • Step 802 The mobility management network element sends a create session request message to the serving gateway, where the message may include the indication cell.
  • the mobility management network element may be configured according to an operator, optionally, according to step 1
  • the information reported by the access network element determines whether the P-type uses the LIPA.
  • the indication cell is added to the create session request message sent by the dynamic management network element to the serving gateway.
  • the service gateway forwards the downlink user plane TEID for the forwarding data, and the name is not limited, such as Forward_SGW_DL TEID.
  • Step 803 The serving gateway sends a create session request message to the P-GW, where the message includes an indication cell, and the message may further include a cell Forward_SGW_DL TEID.
  • Step 804 The P-GW receives the Create Session Request message. Since the session request message includes the indication cell, the P-GW saves the Forward_SGW_DL TEID and allocates GTP-U (GPRS) between the home base station and the P-GW.
  • GTP-U GPRS
  • Tunnel l ing Protocol for User Plane User Part of the GPRS Tunneling Protocol.
  • Downstream GTP-U tunnel identifier for forwarding data on the tunnel LIPA_PGW TEID; Also assign the identifier to the GTP-U tunnel when forwarding data to the serving gateway.
  • the tunnel information P ⁇ GW IP addres s, LIPA-PGW TEID.
  • Forward_PGW_DL TEID is included in this response message and forwarded to the service gateway.
  • the cell name in this message is not limited, and only relevant information is identified by this name.
  • Step 805 The serving gateway sends a create session response message to the mobility management network element.
  • the create session response message includes LIPA-PGW TEID, PDN GW IP addres s;
  • Step 806 The mobility management network element sends a bearer setup request message to the home base station, and sends a LIPA-PGW TEID, PDN GW IP addres s to the home base station. After receiving the information, the home base station sends the information. It is stored in the context information of the UE, and can correspond to the UE identifier.
  • the subsequent step may be a PDN connection establishment process, which is not limited in the embodiment of the present invention.
  • the subsequent steps may be: radio side bearer establishment; the home base station sends a bearer setup complete message to the mobility management network element; the UE moves to the mobile station through the home base station.
  • the service management network element directly transmits the PDN connection establishment completion message; the mobility management network element sends a modify bearer request message to the service gateway; the service gateway sends a modify bearer request message to the P-GW; the service gateway sends a modify bearer request response message to the P-GW.
  • the mobility management network element sends a modify bearer request response message to the serving gateway.
  • a GTP-U tunnel is established between the home base station and the P-GW, so that when the home base station receives the downlink data packet, the data packet can be sent to the GTP-U tunnel to the GTP-U tunnel.
  • the P-GW sends the data packet to the serving gateway, and then the serving gateway triggers the paging UE, so that the UE initiates the service request process, and establishes an air interface and an S1 interface bearer.
  • the home base station no longer forwards data through the P-GW, and the data is forwarded directly to the UE by the home base station.
  • the processing steps are as follows:
  • Step 807 Determine, according to the context information, that the downlink data packet belongs to the UE, and send the downlink data packet to the packet data gateway by using the GTP-U tunnel, and forward, by the packet data gateway, the downlink data packet.
  • the serving gateway is configured to instruct the serving gateway to initiate paging to the UE to establish a connection.
  • An embodiment of the present invention provides a method for processing a paging in a scenario in which a home base station accesses a scenario.
  • the home base station stores context information of a UE in an idle state, and a GTP-U tunnel is established between the home base station and the P-GW.
  • the home base station receives the downlink data packet sent to the UE in the idle state
  • the downlink data packet may be sent to the P-GW through the GTP-U tunnel, and the P-GW forwards the packet to the serving gateway to trigger the paging.
  • the connection between the home base station and the UE is established, so that the downlink data packet can be sent to the UE, and the service of the UE in the idle state is normal.
  • Step 901 When the user terminal UE is in an idle state, the access network element stores context information of the UE.
  • Step 902 The access network element receives a downlink data packet that is sent to the UE in an idle state, and determines, according to the context information, that the downlink data packet belongs to the UE.
  • Step 903 The access network element sends a downlink data notification message to the mobility management network element, where the message name is not limited, and may be Downl ink data notify, etc., and the downlink data notification message includes the identifier of the UE, such as IMSI or Sl- AP ID, etc.
  • Step 904 When the mobility management network element receives the downlink data notification, the access network element sends a paging message to the UE.
  • Step 905 After receiving the paging message, the UE initiates a service request process, and establishes an air interface and an S1 interface bearer.
  • Step 906 After receiving the paging response, the mobility management network element stops paging.
  • the home base station When the home base station receives the downlink data packet, if it finds that the user plane has been successfully established, it stops sending the downlink data notification message to the mobility management network element.
  • the access network element is specifically a home base station or a home base station gateway.
  • the embodiment of the invention provides a method for processing a call in a scenario of a home base station, accessing the uplink information of the UE in the idle state, and defining a new process between the access network element and the mobility management entity, so as to
  • the incoming network element can directly send a message through the mobility management network element, triggering the mobility management network element to initiate paging to the UE, establishing a connection between the UE and the access network element, so that the downlink data packet can be sent to the UE, so that the idle
  • the UE's services can be performed normally.
  • the embodiment of the present invention adopts the following solutions:
  • Method 1 If the tracking area update or the routing update is initiated when the UE moves to the target side, when the mobility management network element finds that the access network element changes, the following information may be used to indicate that the source access network element deletes the upper and lower information of the UE: When the mobility management network element is unchanged, if there is an Iu connection or an S1 connection with the source side access network element, the mobility management network element sends an Iu release command or an S1-AP: SI release command message to the source access network element. A reason value may be added to the cause value to indicate that the access network element releases the context information of the UE. Such as cause: remove the UE context and so on. The specific name is not limited.
  • the context information of the UE on the access network is deleted. If the Iu connection or the S1 connection does not exist, the source-side mobility management network element may also send a message to the source-side access NE to indicate that the source access NE deletes the UE context information.
  • the name of the message is not limited, such as: l ipa context release reques t and so on.
  • the target-side mobility management network element may send a source to the source-side mobility management network element to access the Internet interface of the access network element, such as i port 1 - indicat ion.
  • the target-side mobility management network element sends the Iu release command or the Sl-AP: SI release command message to the source-side access network element, and uses the cause value to indicate that the source-side access network deletes the context information of the UE.
  • the source side mobility management network element may also send a message to the source side access network element to indicate that the source access network element deletes the UE context information.
  • the name of the message is not limited, such as: l ipa context release reques t and so on.
  • the source access NE initiates the handover process according to the measurement report of the UE.
  • the source-side access NE can delete the context information of the reserved UE due to the handover change of the access NE.
  • Method 2 A timer is set on the home base station, and the timer name can be up to a timer or a monitoring timer. The specific name is not limited.
  • the timer is used to monitor the release time of the UE context information. The timer is started when the UE is in the idle state (that is, there is no S1 connection), and when the UE is in the connected state (when the S1 connection is established), the timer is stopped. When the timer expires, the context information of the UE on the access network can be initiated. . There are three ways to set the timer:
  • the home base station can parse the NAS signaling to obtain the tracking area update timer information of the UE.
  • the duration of the timer in the embodiment of the present invention may be set by referring to the tracking area update timer duration of the UE, and may be equal to or slightly longer than the tracking area update timer. It should be noted that the duration of the tracking area update timer is used as the timer duration in the embodiment of the present invention. The main reason is: when the tracking area update timer on the UE times out, the UE should initiate the tracking area update if normal. If the tracking area update is not initiated normally, the access network element has reason to believe that the UE has lost the connection, etc., and then the UE context information may be deleted. Therefore, the duration of the timer may be set according to the duration of the tracking area update timer of the UE. The setting of the duration is reasonable.
  • the home base station can start a timer for the UE performing the service through the internet, and the timer duration can be set autonomously. Specifically, if the home base station sets the timer duration autonomously, the operator or the owner of the issuing home base station can set the time for clearing the UE context information on the home base station.
  • the network side informs the access network element of the timer information, for example, notifying the access network of the timer information in the ini t ial context setup reques t message.
  • the time of the timer can be controlled by the core network side.
  • the timer duration can be set according to different regional characteristics. For example, in the residential area, the time for the network to send to the home base station can be longer. In some commercial areas, such as shopping malls, the user mobility is large, and the time that the network side can deliver the timer is shorter. Wait.
  • the embodiment of the present invention further provides an apparatus for processing a call in a scenario of a home base station.
  • a processing device for a call in a scenario of a home base station includes:
  • the storage unit 1001 is configured to save context information of the UE when the user terminal UE is in an idle state;
  • the receiving unit 1002 is configured to receive a downlink data packet that is sent to the UE in an idle state.
  • the P-GW forwards to the serving gateway, instructing the serving gateway to initiate paging to the UE, establishing a connection.
  • the storage unit 1001 is specifically configured to receive a context release command sent by the mobility management network element, and determine, according to the release cause value included in the context release command, whether to retain the context information of the UE.
  • the context information of the UE includes the IP address of the UE and the public network address of the UE, and the replacing unit 1003 is specifically configured to match the destination address of the downlink data packet received by the receiving unit 1002 and the context of the UE stored by the storage unit 1001.
  • the IP address of the UE included in the information replaces the destination address of the downlink data packet with the public network address of the UE.
  • the device further includes a first obtaining unit 1005, specifically configured to acquire a public network address of the user terminal UE.
  • the storage unit 1001 is further configured to: when the UE moves, if the access NE changes, the storage unit 1001 deletes the saved context information of the UE; or
  • the device further includes a timer setting unit 1005, configured to set a timer, where the duration of the timer is set according to a tracking area update timer of the UE or an area of the area where the UE is located, when the UE is in the The timer is started in an idle state, and when the timer expires, the storage unit 1001 deletes the saved context information of the UE.
  • a timer setting unit 1005 configured to set a timer, where the duration of the timer is set according to a tracking area update timer of the UE or an area of the area where the UE is located, when the UE is in the The timer is started in an idle state, and when the timer expires, the storage unit 1001 deletes the saved context information of the UE.
  • the embodiment of the present invention provides a processing device for a call in a home access scenario, where the context information of the UE in the idle state is saved, so that when receiving the downlink data packet sent from the internet to the UE, the context information of the UE may be
  • the destination address of the downlink data packet is changed to the public network address of the UE. Since the destination address in the downlink data packet is the public IP address of the UE, the downlink data packet is routed to the corresponding P-GW, thereby further transmitting the downlink data packet to the service.
  • the gateway initiates a call by the serving gateway, so that the downlink data packet can be sent to the UE, ensuring normal operation of the service when the UE is in an idle state.
  • a processing device for a call in a scenario of a home base station includes:
  • the storage unit 1001 is configured to save context information of the UE when the user terminal UE is in an idle state;
  • the receiving unit 1002 is configured to receive a downlink data packet that is sent to the UE in an idle state.
  • the attribution determining unit 1101 is configured to determine, according to the context information received by the receiving unit 1002, that the downlink data packet belongs to the UE;
  • the first sending unit 1102 the IP address of the downlink user plane and the tunnel identifier of the downlink user plane, send the downlink data packet to the serving gateway, instruct the serving gateway to initiate paging to the UE, and establish a connection.
  • the device further includes: a second acquiring unit 1103, configured to acquire a channel identifier of the downlink user plane.
  • An embodiment of the present invention provides a processing device for a call in a scenario where a home base station accesses a scenario, where the device stores context information of a UE in an idle state, and acquires a downlink user plane tunnel identifier and an IP address, so that when received and sent
  • the downlink data packet of the UE in the idle state is used, the downlink data packet may be forwarded to the serving gateway through the packet data gateway, the paging is triggered, and the connection is established, so that the downlink data packet may be sent to the UE, so that the UE in the idle state
  • the business can proceed normally.
  • a processing device for a call in a scenario of a home base station includes:
  • the storage unit 1001 is configured to save context information of the UE when the user terminal UE is in an idle state;
  • a tunnel establishing unit 1201, configured to establish a GTP-U tunnel with a packet data gateway to which the UE belongs;
  • the receiving unit 1002 is configured to receive a downlink data packet that is sent to the UE in an idle state, and the home determining unit 1101 is configured to determine, according to the context information received by the receiving unit, that the downlink data packet belongs to the UE;
  • the second sending unit 1202 is configured to send the downlink data packet to the paging service gateway through the GTP-U tunnel to initiate paging to the UE, and establish a connection.
  • the device for processing a call in a scenario of a home base station includes:
  • the storage unit 1001 is configured to save context information of the UE when the user terminal UE is in an idle state;
  • the receiving unit 1002 is configured to receive a downlink data packet that is sent to the UE in an idle state, and the home determining unit 1101 is configured to determine, according to the context information received by the receiving unit, that the downlink data packet belongs to the UE;
  • the third sending unit 1301 is configured to send a downlink data notification message to the mobility management network element, where the downlink data notification message includes an identifier of the UE, where the downlink data notification message is used to notify the mobility management network element to pass the The access network element initiates a page to the UE to establish a connection.
  • An embodiment of the present invention provides a method and a device for processing a call in a scenario of a home base station accessing a scenario, by storing context information of an idle state UE in an access network element (a home base station or a home base station gateway), and sending and receiving
  • an access network element a home base station or a home base station gateway
  • the serving gateway or the mobility associated network element may initiate paging to the UE, and establish a connection, so that the downlink data packet may be sent to the UE, so that the service of the UE in the idle state may be Work properly.
  • This can be done by the program instructing the associated hardware, which can be stored in a computer readable storage medium.
  • the storage medium is, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

L'invention concerne un procédé et un équipement de radiomessagerie de traitement de femtocellule sur une scène d'accession, le procédé comprenant les étapes suivantes : lorsqu'un terminal utilisateur (UE) est en état de repos, un élément de réseau d'accès stocke les informations de contexte de l'UE (201); l'élément de réseau d'accès reçoit un paquet de liaison descendante qui est envoyé à l'UE au repos, l'adresse cible du paquet de liaison descendante est remplacée par une adresse de réseau public de l'UE selon les informations de contexte de l'UE (202); l'élément de réseau d'accès transmet le paquet de liaison descendante à une passerelle de service par une passerelle de réseau de données par paquets (P-GW), et indique la passerelle de service pour initier une radiomessagerie vers l'UE et une connexion est établie (203). En stockant les informations de contexte de l'UE au repos dans l'élément de réseau d'accès, la présente invention peut remplacer l'adresse cible du paquet de liaison descendante de l'UE au repos par une adresse de réseau public de l'UE, le paquet de liaison descendante étant ainsi routé vers la passerelle de service, puis la radiomessagerie vers l'UE est déclenchée depuis la passerelle de service. L'invention permet d'envoyer les paquets de liaison descendante vers l'UE, et de procéder normalement au service lorsque l'UE est à l'état de repos.
PCT/CN2010/076258 2009-08-25 2010-08-23 Procédé et équipement de radiomessagerie de traitement de femtocellule sur une scène d'accession Ceased WO2011023090A1 (fr)

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