WO2011130983A1 - Procédé, système et équipement de réseau d'implémentation de routage local - Google Patents

Procédé, système et équipement de réseau d'implémentation de routage local Download PDF

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Publication number
WO2011130983A1
WO2011130983A1 PCT/CN2010/076243 CN2010076243W WO2011130983A1 WO 2011130983 A1 WO2011130983 A1 WO 2011130983A1 CN 2010076243 W CN2010076243 W CN 2010076243W WO 2011130983 A1 WO2011130983 A1 WO 2011130983A1
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WIPO (PCT)
Prior art keywords
terminal
address
service flow
gateway
base station
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PCT/CN2010/076243
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English (en)
Chinese (zh)
Inventor
倪慧
谭仕勇
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201080001610.3A priority Critical patent/CN102365845B/zh
Publication of WO2011130983A1 publication Critical patent/WO2011130983A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/082—Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a local routing implementation method and system, and a network device. Background technique
  • Wired Worldwide Interoperability for Microwave Access
  • IEEE802.16 wireless access technology provides users with high-speed data transmission capabilities, and has received extensive attention.
  • a terminal when a terminal communicates with an external network, the uplink sent by the terminal is transmitted to the serving gateway (Serving GW) through the base station (Base Station, BS for short), and then transmitted to the anchor gateway (Anchor GW). ), and finally transmitted to the external network through the home agent (HA); the downlink message is routed from the external network to the terminal through the bearer path in the opposite direction.
  • the communication peer of the end user is another mobile terminal, if the two terminals are located under the same serving gateway (Serving GW), the message between the two terminals still needs to be first sent from the serving gateway (Serving GW M) The HA is then returned from the HA to the serving gateway (ServingGW) and sent to the target terminal.
  • the message transmission path between the two terminals overlaps from the serving gateway (Serving GW) to the HA.
  • the MSC maps the integrated service digital network (ISDN) phone number of the call peer carried by the terminal to The international mobile subscriber identity (IMSI) of the peer end, and then according to the recorded terminal context, determine whether the BSS where the opposite end of the call is the same as the BSS where the calling terminal is located, and if the same, notify the BSS that the two are Local exchange of voice between people.
  • ISDN integrated service digital network
  • IMSI international mobile subscriber identity
  • the inventor finds that when the terminal in the WiMAX network initiates the service, the serving gateway device is not able to determine whether the peer is located in the local network under the gateway device according to the MSID of the terminal, so in the prior art, The local triggering technique cannot be applied to WiMAX networks for local route triggering. Summary of the invention
  • the purpose of the embodiments of the present invention is to provide a local routing implementation method and system, and a network device, which reduce packet transmission delay and reduce the transmission load of the core network.
  • the embodiment of the invention provides a local routing implementation method, including:
  • the service flow bearer signaling includes service flow information provided by the terminal and an IP address of a peer end that communicates with the terminal;
  • the terminal and the peer end are located under the same local route execution device according to the IP address of the terminal and the IP address of the peer end, perform a local routing operation on the packet corresponding to the service flow. .
  • the embodiment of the invention provides a network device, including:
  • An acquiring module configured to acquire an Internet Protocol IP address of the terminal in a process of terminal handover;
  • a receiving module configured to receive a service flow bearer signaling, where the service flow bearer signaling includes service flow information provided by the terminal And an IP address of the peer that communicates with the terminal;
  • a routing module configured to determine, according to an IP address of the terminal and an IP address of the peer end
  • the terminal and the peer are located under the network device, and perform a local routing operation on the packet corresponding to the service flow.
  • the embodiment of the invention provides a local routing implementation method, including:
  • the anchoring gateway receives the service flow initiated by the serving gateway or the base station according to the service flow information provided by the terminal, and transmits the service flow to the opposite end, where the opposite end is a terminal device that communicates with the terminal,
  • the service flow bearer signaling carries the IP address of the peer end;
  • the anchor gateway determines that the terminal and the peer end are located under the same local route execution device according to the IP address of the peer end and the acquired IP address of the terminal, the anchor gateway is The service flow performs local routing authorization, and notifies the local routing execution device to perform local routing on the corresponding text of the service flow.
  • the embodiment of the invention provides a network device, including:
  • a receiving module configured to receive a service flow bearer signaling initiated by the terminal and forwarded by the original serving gateway, and the peer end is a terminal device that communicates with the terminal, where the service flow bearer signal The order carries the IP address of the opposite end;
  • an authorization module configured to perform local routing authorization on the service flow, if it is determined that the terminal and the peer end are located under the network device according to the IP address of the peer end and the obtained IP address of the terminal;
  • the notification module is configured to notify the network device to perform local routing on the packet corresponding to the service flow.
  • the embodiment of the invention provides a local routing implementation method, including:
  • the anchoring gateway receives the service flow initiated by the serving gateway according to the service flow information provided by the terminal, and the terminal device is the terminal device that communicates with the terminal, the service flow ⁇ ⁇ carrying the IP address of the opposite end in the signaling;
  • the anchor gateway determines that the terminal and the peer are located under the serving gateway according to the IP address of the peer and the obtained IP address of the terminal, sending a local routing indication to the serving gateway, Determining, by the serving gateway, whether the service flow can be performed according to the local routing indication The corresponding packet is locally routed by the base station under the serving gateway.
  • the embodiment of the invention provides a local routing implementation system, including: an anchor gateway, a service gateway, and a base station;
  • the anchoring gateway receives the service flow signaling carried out by the serving gateway according to the service flow information provided by the terminal, and the peer end is a terminal device that communicates with the terminal,
  • the service flow bearer signaling carries an IP address of the peer end;
  • the anchor gateway determines that the terminal and the peer are located under the serving gateway according to the IP address of the peer and the obtained IP address of the terminal, sending a local routing indication to the serving gateway, And causing, by the serving gateway, to determine, according to the local routing indication, whether the corresponding information of the service flow can be locally routed by the base station under the monthly service gateway.
  • the embodiment of the present invention provides a local routing implementation method, including: the anchoring gateway receives a service flow initiated by the serving gateway or the base station according to the service flow information provided by the terminal, and the peer end transmits the service flow. Signaling, the peer end is a terminal device that communicates with the terminal, and the service flow bearer signaling carries an IP address of the opposite end;
  • the anchoring gateway determines that the peer end is located under the anchoring gateway according to the IP address of the peer end, the anchoring gateway performs local routing on the packet corresponding to the service flow.
  • the local routing implementation method, system, and network device provided by the embodiment of the present invention, if the terminal and the peer are located under the same local route execution device according to the IP address of the terminal and the IP address of the peer end, the corresponding service flow The local routing operation is performed, and the corresponding text of the service flow is transmitted to the peer end through the local route, because the local routing execution device is prevented from routing the corresponding message to the HA and then to the external network. Therefore, the delay of the transmission of the message corresponding to the service flow between the network elements is reduced, and the transmission load of the core network is reduced.
  • FIG. 1 is a structural diagram of a network system to which an embodiment of the present invention is applied;
  • FIG. 2 is a schematic flowchart of an embodiment of a method for implementing local routing according to the present invention
  • FIG. 3 is a schematic flowchart of still another embodiment of a method for implementing local routing according to the present invention.
  • FIG. 4 is a signaling flowchart applicable to the embodiment shown in FIG. 3;
  • FIG. 5 is a schematic flowchart diagram of another embodiment of a method for implementing local routing according to the present invention.
  • FIG. 6 is a signaling flowchart applicable to the embodiment shown in FIG. 5;
  • Figure ⁇ is a schematic structural diagram of an embodiment of a network device of the present invention.
  • FIG. 8 is a schematic structural diagram of still another embodiment of a network device according to the present invention.
  • FIG. 9 is a schematic flowchart of still another embodiment of a method for implementing local routing according to the present invention.
  • FIG. 10A is a signaling flowchart applicable to the embodiment shown in FIG. 9; FIG.
  • FIG. 10B is another signaling flowchart applicable to the embodiment shown in FIG. 9.
  • FIG. 11 is a schematic structural diagram of still another embodiment of a network device according to the present invention.
  • FIG. 12 is a schematic flowchart of still another embodiment of a local routing implementation method according to the present invention.
  • FIG. 13 is a signaling flowchart applicable to the embodiment shown in FIG.
  • FIG. 14 is a schematic structural diagram of an embodiment of a local routing implementation system according to the present invention. detailed description
  • FIG. 1 is a network system architecture diagram of an embodiment of the present invention.
  • the terminal before a terminal switches from the original base station 11 to the target base station 17, the terminal sends the packet to the anchor through the original base station 11 and the original serving gateway 12.
  • the gateway 13 and the anchor gateway 13 send the message to the HA 14 and transmit it through the HA 14
  • the information exchange between the terminal and the external network is implemented.
  • the terminal After the terminal switches from the original base station 11 to the target base station 17, the terminal sends the message to the anchor gateway 13 through the target base station 17 and the target serving gateway 16, anchoring
  • the gateway 13 then sends the message to the HA 14 and transmits it to the external network 15 through the HA 14, thereby realizing the information exchange between the terminal and the external network.
  • the anchor gateway 13 is an anchor point of the message transmission path of the terminal when the terminal is switched, and the anchor point can acquire the IP address of the terminal when the terminal initially accesses the network;
  • the original service gateway 12 is the original base station before the terminal handover 11 corresponding monthly service gateway,
  • the target service gateway 16 is a service gateway corresponding to the target base station 17 after the terminal handover; further, if the terminal initially accesses the network under the original base station 11, the original service gateway 12 and the anchor Gateway 13 can be the same gateway device.
  • the system architecture shown in FIG. 1 is merely an exemplary illustration and does not constitute a limitation on the applicable scenarios of the embodiments of the present invention.
  • FIG. 2 is a schematic flowchart of an embodiment of a method for implementing local routing according to the present invention. As shown in FIG. 2, the embodiment includes the following steps:
  • Step 201 Obtain an IP address of the terminal in a process of switching the terminal.
  • Step 202 Receive service flow bearer signaling, where the service flow bearer signaling includes service flow information provided by the terminal and an IP address of the peer end that communicates with the terminal;
  • the service flow bearer signaling may be initiated by the terminal, or may be initiated by the base station according to the service flow information provided by the terminal.
  • Step 203 If it is determined that the terminal and the peer are located under the same local route execution device according to the IP address of the terminal and the IP address of the peer end, perform local route operation on the corresponding message of the service flow.
  • the local routing execution device may be a base station or a serving gateway according to an actual network architecture.
  • the local routing implementation method provided by the embodiment of the present invention performs local routing on the corresponding packet of the service flow, if the terminal and the peer end are located under the same local routing execution device according to the IP address of the terminal and the IP address of the peer end.
  • the operation is implemented, and the packet corresponding to the service flow is transmitted to the peer end through the local route, and the packet corresponding to the service flow is routed to the HA and then transmitted to the external network through the local routing execution device, thereby reducing
  • the corresponding packet of the service flow is in the network element.
  • the delay between transmissions reduces the core network transmission load.
  • FIG. 3 is a schematic flowchart of still another embodiment of a method for implementing local routing according to the present invention.
  • an example is obtained by taking an IP address of the original service gateway before the terminal handover in the terminal handover process as an example, where
  • the network device in the embodiment of the present invention may be specifically a serving gateway (Serving ASN-GW) or a base station after the terminal is switched; as shown in FIG. 3, and described in conjunction with the system architecture diagram shown in FIG. 1, the embodiment includes the following steps. :
  • Step 301 Receive a handover confirmation message that carries the IP address of the terminal from the original serving gateway.
  • the handover confirmation message that carries the IP address of the terminal from the original serving gateway may be a handover indication message sent by the original base station after receiving the terminal.
  • the handover indication message received by the original base station from the terminal may specifically be an MOB_HO_IND message, and the original base station sends a handover carrying the IP address of the terminal to the original target serving gateway according to the handover indication message.
  • the acknowledgment message, further, the handover confirmation message carrying the IP address of the terminal may be an HO-Cnf message.
  • the target serving gateway needs to forward the handover confirmation message carrying the IP address of the terminal to the target base station, if the main body of the embodiment of the present invention is The target service gateway after the terminal is switched, then the target The service gateway may determine whether to forward the handover confirmation message to the target base station according to actual needs. If the target service gateway forwards the handover confirmation message to the target base station, the target service gateway may further determine whether the IP address of the terminal needs to be carried in the Switch the confirmation message.
  • Step 302 Obtain an IP address of the terminal from the handover confirmation message.
  • the IP address of the terminal carrying the IP address of the terminal carries the IP address of the terminal.
  • the handover confirmation message acquires the IP address of the terminal.
  • Step 303 Receive a service flow bearer signaling initiated by the terminal and a peer-to-peer transport service flow, where the peer end is a terminal device that communicates with the terminal, and the service flow bearer signaling carries the IP address of the peer end.
  • the service flow bearer signaling may be initiated by the terminal, or may be initiated by the base station according to the service flow information provided by the terminal. If the main body of the embodiment of the present invention is the target base station, the service flow bearer signaling may be initiated by the terminal and sent to the terminal.
  • the target base station if the subject of the embodiment of the present invention is the target serving gateway, may be initiated and sent by the target base station according to the service flow information provided by the terminal to the target serving gateway; further, after the terminal switches from the original base station to the target base station,
  • the service flow carrying signaling can implement a new bearer between the target base station and the target serving gateway or modify the existing bearer, so that the target base station and the target serving gateway transmit the service flow initiated by the terminal to the opposite end; for example:
  • the terminal sends a dynamic service increase request (DSA-REQ) message to create a new bearer, or the terminal sends a dynamic service modification request (DSC-REQ) message to modify the existing bearer, through the new bearer or the modified bearer.
  • DSA-REQ dynamic service increase request
  • DSC-REQ dynamic service modification request
  • Step 304 If it is determined that the terminal and the peer end are located under the same local route execution device according to the IP address of the terminal and the IP address of the peer end, send a path registration request message to the anchor gateway, instructing the anchor gateway to register according to the path. Requesting a message to authorize the service flow;
  • the target base station or the target serving gateway may be specifically configured as the target base station, and the target base station sends the path registration request message to the anchor gateway through the target serving gateway. If the execution subject is the target service gateway, the target service gateway directly sends a path registration request message to the anchor gateway; the path registration request (Path_Reg_Req) message may carry indication information for performing local routing, indicating the anchor gateway Authorize the service flow for the service flow.
  • Step 305 Receive a response message of completing the service authorization returned by the anchor gateway.
  • the target base station receives the response message of the completed service authorization returned by the anchor gateway through the target serving gateway, and if the entity in the embodiment of the present invention is the target month service gateway, Then, the target month service gateway directly receives the response message of completing the service authorization returned by the anchor gateway;
  • Step 306 The packet corresponding to the service flow is routed to the peer end according to the response message of the completion service authorization.
  • the IP address of the peer end is located on the same local route execution device, and the packet corresponding to the service flow initiated by the terminal is routed to the pair through the local route execution device according to the IP address of the peer end. End, thereby realizing the local route of the message corresponding to the service flow.
  • the local routing implementation method provided by the embodiment of the present invention if the terminal and the opposite end are located under the same target serving gateway or the target base station according to the IP address of the terminal and the IP address of the opposite end, the target serving gateway or the target base station will The message corresponding to the service flow is locally routed, and the message corresponding to the service flow is transmitted to the peer end through the local route, because the packet corresponding to the service flow is avoided by the target service gateway or the target base station.
  • the HA is transmitted to the external network, the delay of the transmission of the packets corresponding to the service flow between the network elements is reduced, and the transmission load of the core network is reduced.
  • the IP address of the terminal is obtained by the authenticator of the access network where the terminal is located in the process of the terminal handover.
  • the process of obtaining the IP address of the terminal may be specifically:
  • the target service gateway sends a context request message to the authenticator for requesting acquisition of the IP address of the terminal;
  • the target serving gateway acquires the IP address of the terminal from the context response message carrying the IP address of the terminal.
  • the process of obtaining the IP address of the terminal may be specifically:
  • the target base station sends a context request message for requesting acquisition of the IP address of the terminal to the authenticator through the target serving gateway;
  • the target base station obtains the IP address of the terminal from the context response message carrying the IP address of the terminal by the target serving gateway.
  • FIG. 4 is a signaling flow chart applicable to the embodiment shown in FIG.
  • the serving service gateway (Serving ASN-GW) obtains the IP address of the terminal from the original serving gateway before the terminal handover in the terminal handover process, the original service gateway is the service gateway before the terminal handover, and the target service gateway is the terminal handover.
  • the service gateway, the anchor GW transmits the service flow from the monthly service gateway to the external network through the HA; as shown in FIG. 4, the embodiment includes the following steps:
  • Step 401 The terminal sends a handover indication message to the original base station, where the handover indication message is used to indicate that the original base station needs to switch the bearer service to the target base station (New BS);
  • the handover indication message may specifically be a terminal handover indication (MOB_HO_IND) message.
  • Step 402 The original base station sends a handover confirmation (HO_Cnf) message to the target base station, and confirms that the terminal will switch from the original base station to the target base station; specifically, the original serving base station (Old Serving GW) passes the original serving gateway and the target gateway (New Serving GW).
  • the confirmation message (HO_Cnf) obtains the IP address of the terminal;
  • Step 403 The target base station returns a handover response (HO_Ack) message to the original base station (Old BS), where the handover response message may be via the target serving gateway (Serving GW) and the original serving gateway (Old Serving GW) forwarded to the original base station;
  • HO_Ack handover response
  • Step 404 The target base station acquires a context message of the terminal from an authenticator ( Authenticator );
  • the context message may be a security key (Key) or the like, and the context message may be forwarded to the target base station by using a serving GW (Serving GW);
  • Key a security key
  • Server GW serving GW
  • Step 405 The terminal re-enters the network under the target base station.
  • Step 406 The target base station establishes a bearer with the anchor gateway by using the target serving gateway, and is configured to transmit a service flow currently initiated by the terminal.
  • the bearer is configured to be forwarded to the external network through the anchor gateway by establishing a bearer between the target base station, the target serving gateway, and the anchor gateway.
  • Step 407 The target base station updates a Cipher-based Message Authentication Code (CMAC) key (Key) for the air interface authentication to the Authenticator.
  • CMAC Cipher-based Message Authentication Code
  • Step 408 The target base station sends a handover completion (HO_Complete) message to the original base station, indicating that the original base station handover is completed.
  • the handover completion message may be forwarded to the original base station by using the target service gateway and the original service gateway.
  • Step 409 The original base station returns a handover response (HO_Ack) message to the target base station, and clears the context message of the terminal in the original base station, where the context message may be: a user key, bearer information, etc., where the handover response message may pass
  • HO_Ack handover response
  • the context message may be: a user key, bearer information, etc.
  • the handover response message may pass
  • the original service gateway and the target service gateway are forwarded to the target base station;
  • the original base station can be switched to the target base station, and the target service gateway or the target base station acquires the IP address of the terminal; when the terminal initiates a new service flow, the terminal initiates the service flow carrying message.
  • the command can be used to establish a new bearer or modify an existing bearer to transmit a packet related to the service flow.
  • the service flow bearer signaling can be different messages for different network elements.
  • the traffic stream 7 signaling may be a dynamic service add request (DSA-REQ) message, used to establish a new bearer, or may be a dynamic service repair.
  • a request (DSC-REQ) message is used to modify an existing bearer.
  • the service flow bearer signaling may be a path registration request (Path_Reg_req) message or a path modification request (Path_Mod_req) message, and the above message is also applicable to Other embodiments of the invention.
  • Path_Reg_req path registration request
  • Path_Mod_req path modification request
  • Step 410 The terminal sends a dynamic service increase request (DSA-REQ) message to the target base station, indicating that the target base station establishes a new bearer, where the DSA-REQ message carries the IP quintuple information of the service flow (Packet classification) Rule), the IP quintuple information specifically includes a source IP address, a destination IP address, a source port number, a destination port number, and a protocol type of the service flow;
  • DSA-REQ dynamic service increase request
  • Step 411 The target base station returns a dynamic service establishment response (DSX-RVD) message to the terminal, indicating that the dynamic service increase request (DSA-REQ) message is received.
  • DSX-RVD dynamic service establishment response
  • DSA-REQ dynamic service increase request
  • Step 412 The target base station sends a path registration request (Path_Reg_Req) message to the target serving gateway, and is used to request to establish a new bearer, where the path registration request message carries the IP quintuple information of the service flow;
  • Path_Reg_Req path registration request
  • Step 413 If the target serving gateway (Serving GW) determines that the peer end of the service flow is located under the target serving gateway according to the destination IP address in the IP quintuple information of the service flow and the IP address of the terminal, it is determined that The packet corresponding to the service flow is transmitted to the peer end by using a local route.
  • Step 415 The target serving gateway performs resource authorization on the new bearer that the terminal indicates to the target base station in step 410, so that the anchor gateway can authorize the local route according to the indication information of the local route obtained in step 414;
  • the target serving gateway may implement the local routing authorization by sending an authorization request to the authenticator in the access network; the anchoring gateway returns a response message to the target base station through the target serving gateway, thereby establishing the new bearer;
  • Step 416 The target serving gateway transmits the packet corresponding to the service flow to the peer end by using the local route on the new bearer.
  • the local routing implementation method provided by the embodiment of the present invention is based on the IP address and service flow of the terminal.
  • the IP address of the peer end carried by the bearer signaling is determined to be that the terminal and the peer end are located under the target serving gateway, and the target serving gateway transmits the packet corresponding to the service flow from the terminal to the peer end by performing a local routing operation, After the packet corresponding to the service flow is routed to the HA through the anchor gateway, the packet is transmitted to the external network, thereby reducing the delay of the transmission of the packet corresponding to the service flow between the network elements, and reducing the transmission load of the core network. .
  • the above process is exemplified by the local service route executed by the target service gateway. If the local route is performed for the target base station, the target base station obtains the IP address of the terminal through the handover confirmation message, and if the IP quintuple information of the service flow is obtained. The destination IP address and the IP address of the terminal determine that the opposite end of the service flow is located under the target base station, and then determine that the service flow can be transmitted to the opposite end through the local route, and the network element such as the target base station and the authenticator
  • the interaction of the device refer to the interaction between the foregoing target service gateway and the authenticator, and details are not described herein.
  • FIG. 5 is a schematic flowchart of another embodiment of a method for implementing local routing according to the present invention.
  • an example is provided for obtaining an IP address of a terminal by an authenticator of an access network where a terminal is located in a terminal handover process, where The network device that performs the embodiment of the present invention may be specifically a serving gateway (Serving ASN-GW) after the terminal is switched or a base station after the terminal is switched.
  • the embodiment of the present invention uses a base station as an example for example, as shown in FIG. 5, Embodiments of the present invention include the following steps:
  • Step 501 The target base station after the handover sends a context request message for requesting the IP address of the terminal to the authenticator.
  • the context request message may be forwarded to the authenticator through the target service gateway.
  • Step 502 The target base station receives a context response message that is sent by the authenticator according to the context request message and carries the IP address of the terminal.
  • the context response message may be forwarded to the authenticator through the target service gateway.
  • the context response message may be a Context_Rsp message.
  • Step 503 The target base station receives the service flow bearer signaling initiated by the terminal and the peer-end transport service flow, where the peer end is a terminal device that communicates with the terminal, and the service flow-based signaling carries the IP address of the opposite end; After the terminal is handed over from the original base station to the target base station, the service flow carrying signaling can implement a new bearer between the target base station and the target serving gateway, or modify the existing bearer, so that the target base station and the target service gateway are used.
  • the peer end transmits the service flow initiated by the terminal; for example: the terminal sends a dynamic service increase request (DSA-REQ) message to create a new bearer, or the terminal sends a dynamic service modification request (DSC-REQ) message to modify the existing one.
  • the bearer transmits the service flow initiated by the terminal through the new bearer or the modified bearer.
  • Step 504 If the target base station determines that the terminal and the opposite end are located under the target base station according to the IP address of the terminal and the IP address of the opposite end, the target base station sends indication information for performing local routing to the anchor gateway.
  • the indication information of the local routing may be carried in the path modification request.
  • the anchoring gateway performs service authorization on the service flow according to the indication information of the local routing.
  • Step 505 The target base station receives a response message that is returned by the anchoring gateway according to the indication information of the local routing.
  • Step 506 The target base station routes the packet corresponding to the service flow from the terminal to the opposite end according to the response message.
  • the IP address of the peer end is also located under the target service gateway, and the target service gateway routes the service flow initiated by the terminal to the peer end according to the IP address of the peer end, thereby The local route of the target base station corresponding to the service flow is implemented.
  • the local route implementation method provided by the embodiment of the present invention, if the target base station determines the IP address of the target base station and the opposite end as the target base station according to the IP address of the terminal and the IP address of the opposite end carried by the service flow bearer signaling, the target base station will be from the terminal.
  • the traffic corresponding to the service flow is routed to the peer end, and the traffic corresponding to the service flow is not transmitted to the HA through the anchor gateway, and then transmitted to the core network, thereby reducing the corresponding traffic flow.
  • the delay of transmission of packets between network elements reduces the transmission load of the core network.
  • FIG. 6 is a signaling flow chart applicable to the embodiment shown in FIG.
  • the target base station obtains the IP address of the terminal from the base station before the terminal handover in the terminal handover process.
  • the original base station is the base station before the terminal handover
  • the target base station is the base station after the terminal handover.
  • the anchor GW transmits the service flow from the target base station to the core network through the HA.
  • the embodiment includes the following steps:
  • Step 601 The terminal sends a handover indication message to the original base station, where the handover indication message is used to indicate that the original base station needs to switch the bearer service to the target base station (Target BS );
  • the handover indication message may specifically be a terminal handover indication (MOB_HO_IND) message.
  • Step 602 The original base station sends a handover confirmation (HO_Cnf) message to the target base station, confirming that the terminal will handover from the original base station to the target base station; and the target base station returns a handover response (HO_Ack) message to the original base station;
  • HO_Cnf handover confirmation
  • HO_Ack handover response
  • the handover confirmation message may be sent to the target base station by using the original serving gateway and the target serving gateway; the handover response message may be forwarded to the terminal by the target serving gateway and the original serving gateway; Step 603: The target base station sends a context request to the target serving gateway.
  • a Context-Req message configured to request, by an authenticator in the access network, the context information of the terminal, where the context request message optionally carries the indication information for acquiring the IP address of the terminal, through the target service gateway ( Serving GW ) forwarded to the authenticator ( Authenticator );
  • Step 604 The authenticator returns a context response (Context_Rsp) message to the target base station by using the target serving gateway, where the context response message carries the IP address of the terminal, and the target serving gateway forwards the IP address to the target base station;
  • Context_Rsp context response
  • the message, the target service gateway and the target base station can obtain the IP address of the terminal;
  • Step 605 The terminal re-enters the network under the target base station.
  • Step 606 The target base station establishes a bearer with the anchor gateway by using the target serving gateway, and is configured to transmit a service flow currently initiated by the terminal.
  • the service flow initiated by the terminal is forwarded to the core network through the anchor gateway by establishing a bearer between the target base station, the target service gateway, and the anchor gateway.
  • Step 607 The target base station updates the CMAC for air interface authentication to the authenticator (Authenticator) Key information;
  • Step 608 The target base station sends a handover completion (HO_Complete) message to the original base station, indicating that the original base station handover is complete; wherein the handover completion message may be forwarded to the original base station by using the target service gateway and the original service gateway;
  • HO_Complete handover completion
  • Step 609 The original base station returns a handover response (HO_Ack) message to the target base station, and clears the context message of the terminal at the original base station.
  • the handover response message may be forwarded to the target base station by using the original serving gateway and the target serving gateway;
  • the message stores the user key, bearer information, and the like.
  • the original base station can be switched to the target base station, and the target serving gateway or the target base station acquires the IP address of the terminal; when the terminal initiates a new service flow, the terminal initiates the service flow carrying message.
  • the command may be used to establish a new bearer or modify an existing bearer to transmit a message related to the service flow.
  • the service flow bearer signaling may be a dynamic service add request (DSA-REQ) message.
  • a new bearer may be established, which may also be a dynamic service modification request (DSC-REQ) for tampering with an existing 7-load, as an example is illustrated in the embodiment shown in FIG. 4 by establishing a new bearer.
  • DSC-REQ dynamic service modification request
  • the following is an example of modifying an existing bearer by taking steps 610 to 616 as an example.
  • Step 610 The terminal sends a dynamic service modification request (DSC-REQ) message to the target base station, instructing the target base station to modify the existing bearer, to reuse the existing bearer to transmit a new service flow.
  • DSC-REQ dynamic service modification request
  • the IP quintuple information of the service flow is carried in the dynamic service tampering request message; the IP quintuple information specifically includes a source IP address, a destination IP address, a source port number, and a destination port number of the service flow. , agreement type.
  • Step 611 The target base station returns a dynamic service modification response (DSX-RVD) message to the terminal, indicating that the dynamic service modification request (DSC-REQ) message is received.
  • DSX-RVD dynamic service modification response
  • DSC-REQ dynamic service modification request
  • Step 612 The target base station determines, according to the destination IP address in the IP quintuple in the service flow and the IP address of the terminal, that the peer end of the service flow is located under the target base station;
  • Step 613 The target base station sends a path modification request to the target serving gateway (Path_Mod_Req) a message, configured to request to modify an existing bearer, where the path modification request message carries indication information for performing local routing;
  • Step 614 The target service gateway sends the path modification request (Path_Mod_Req) message to the anchor gateway.
  • the path modification request message carries the indication information for performing local routing.
  • Step 615 The anchor gateway performs resource authorization on the existing bearer, and the anchor gateway may further authorize the local route according to the indication information of the local routing.
  • the anchor gateway returns a response message to the target base station by using the target serving gateway.
  • Step 616 The target base station transmits the packet corresponding to the service flow to the peer end by using the local route on the modified existing bearer.
  • the local routing implementation method provided by the embodiment of the present invention if the terminal and the peer end are the IP addresses of the target base station according to the IP address of the terminal and the IP address of the peer carried by the service flow bearer signaling, the target service gateway will come from the terminal.
  • the message corresponding to the service flow is transmitted to the peer end by performing a local route. Since the packet corresponding to the service flow is routed to the HA through the anchor gateway, and then transmitted to the external network, the service flow is reduced.
  • the delay of the transmission of the corresponding packet between the network elements reduces the transmission load of the core network.
  • the handover procedure of the terminal described in the foregoing embodiment of FIG. 2 to FIG. 6 is only an example of the embodiment of the present invention, so that the target service gateway or the target base station can obtain the IP address of the terminal through the handover process of the terminal.
  • the method for obtaining the type of the message and the order of obtaining the message are different, but the IP address of the terminal is obtained by the switching process of the terminal, which is the implementation method of the embodiment of the present invention.
  • the embodiments of the invention are merely described for convenience of description.
  • FIG. 7 is a schematic structural diagram of an embodiment of a network device according to the present invention.
  • the network device in the embodiment of the present invention may be a service gateway or a base station.
  • the embodiment includes: an obtaining module 71 and a receiving module 72. , routing module 73;
  • the obtaining module 71 acquires the Internet Protocol IP of the terminal in the process of terminal handover.
  • the receiving module 72 receives the service flow bearer signaling, where the service flow bearer signaling includes the service flow information provided by the terminal and the IP address of the peer end communicating with the terminal; if according to the IP address of the terminal And determining, by the IP address of the peer end, that the terminal and the peer end are located under the network device, and the routing module 73 performs a local routing operation on the packet corresponding to the service flow.
  • the routing module 73 performs a local routing operation on the packet corresponding to the service flow.
  • the message corresponding to the service flow is transmitted to the peer end through the local route, and the service flow corresponding to the service flow is avoided by the network device and then transmitted to the external network, thereby reducing the service flow.
  • the delay of the corresponding packet transmission between the network elements reduces the transmission load of the core network.
  • FIG. 8 is a schematic structural diagram of another embodiment of a network device according to the present invention.
  • the network device in the embodiment of the present invention may be a service gateway or a base station.
  • the embodiment includes: an obtaining module 81 and a receiving module. 82, routing module 83;
  • the obtaining module 81 acquires the Internet Protocol IP address of the terminal in the process of the terminal switching; the receiving module 82 receives the service flow bearer signaling, where the service flow bearer signaling includes the service flow information provided by the terminal and The IP address of the peer that the terminal performs communication; if it is determined that the terminal and the peer are located under the network device according to the IP address of the terminal and the IP address of the peer, the routing module 83 processes the service flow. The corresponding message performs a local routing operation.
  • the obtaining module 81 may further include: a first obtaining unit 811 and/or a second obtaining unit 812; wherein the first acquiring unit 811 acquires the terminal from the original serving gateway before the terminal switching in the terminal switching process The second obtaining unit 812 acquires the IP address of the terminal to the authenticator of the access network where the terminal is located in the terminal handover process.
  • the first obtaining unit 811 may further include: a first receiving subunit 8111, a first obtaining subunit 8112; wherein, the first receiving subunit 8111 receives a handover confirmation from the original serving gateway that carries the IP address of the terminal.
  • the first acquisition sub-unit 8112 obtains the IP address of the terminal from the handover confirmation message.
  • the second obtaining unit 812 may further include: a sending subunit 8121, a second receiving subunit 8122, and a second obtaining subunit 8123; wherein, the sending subunit 8121 sends an identifier to the authenticator to request to acquire the terminal.
  • the second receiving subunit 8122 acquires an IP address of the terminal from the context response message carrying the IP address of the terminal; the second obtaining subunit 8123 carries the Obtaining the IP address of the terminal in a context response message of the IP address of the terminal.
  • the routing module 83 may further include: a sending unit 831, a routing unit 832; wherein, the sending unit 831 sends a path registration request message to the anchor gateway, instructing the anchor gateway to perform the service according to the path registration request message.
  • the flow carries out the service authorization, and receives the response message of the completed service authorization returned by the anchor gateway; the routing unit 832 routes the message corresponding to the service flow from the terminal to the opposite end.
  • the network device determines that the terminal and the peer end are IP addresses of the network device according to the IP address of the terminal and the IP address of the peer end carried by the service flow bearer signaling, and the routing module 83 will be from the terminal.
  • the packet corresponding to the service flow is routed to the peer end, and the packet corresponding to the service flow is avoided by routing the packet corresponding to the service flow to the HA through the network device, thereby reducing the packet corresponding to the service flow.
  • the delay of transmission between network elements reduces the core network transmission load.
  • FIG. 9 is a schematic flowchart of still another embodiment of a method for implementing local routing according to the present invention. As shown in FIG. 9, the embodiment of the present invention includes the following steps:
  • Step 901 The anchor gateway receives the service flow signaling that is sent by the serving gateway or the base station according to the service flow information provided by the terminal, and the opposite end transmits the service flow, where the peer end is a terminal device that communicates with the terminal,
  • the service flow ⁇ ⁇ carries the IP address of the opposite end in the signaling;
  • Step 902 If the anchor gateway determines that the terminal and the peer end are located under the same local route execution device according to the IP address of the peer end and the IP address of the acquired terminal, the anchor gateway optionally The service flow performs the local routing authorization, and notifies the local routing execution device to perform a local routing operation on the packet corresponding to the service flow.
  • the local routing execution device may be a base station or a serving gateway according to an actual network architecture.
  • the local routing execution device is an anchoring gateway
  • the anchoring gateway directly performs a local routing operation on the packet corresponding to the service flow.
  • the local routing implementation method provided by the embodiment of the present invention if the terminal and the peer end are located under the same local route execution device, according to the IP address of the peer end and the IP address of the obtained terminal, the local route execution device is instructed to perform the service
  • the packet corresponding to the flow performs a local routing operation. Since the packet corresponding to the service flow is routed to the HA through the anchor gateway and then transmitted to the external network, the packet corresponding to the service flow is reduced. The delay between transmissions between the elements reduces the core network transmission load.
  • the anchoring gateway performs local routing authorization on the service flow, which may be:
  • the anchoring gateway sends a resource request message to the authenticator, where the resource request message includes an indication of the service flow for establishing the bearer requested by the terminal and performing local routing authorization on the service flow; the anchoring gateway receives the authentication The resource response message returned by the device according to the indication of the local routing authorization for the service flow, where the resource response message carries the authorization result of the authorization of the authenticator to authorize the service flow, so that the local route is executed.
  • the device performs local routing on the service flow according to the authorization result.
  • the packet corresponding to the service flow initiated by the terminal is routed to the HA and then transmitted to the core network, thereby reducing the delay of the transmission of the packet corresponding to the service flow between the network elements, and reducing the delay.
  • the core network transmits the load.
  • FIG. 10A is a signaling flow chart applicable to the embodiment shown in FIG.
  • the service flow bearer signaling may be to establish a new bearer, or modify an existing bearer, the service flow.
  • the bearer is used to transmit the packet related to the service.
  • the embodiment includes the following steps:
  • Step 1001 The terminal sends a dynamic service increase request (DSA-REQ) message to the base station, where Show the base station to establish a new bearer;
  • DSA-REQ dynamic service increase request
  • the dynamic service increase request message carries the IP quintuple information of the service flow initiated by the terminal, where the IP quintuple information specifically includes the source IP address, the destination IP address, the source port number, the destination port number, and the destination port number of the service flow. agreement type;
  • Step 1002 The base station returns a dynamic service establishment response (DSA-RVD) message to the terminal, indicating that the dynamic service increase request (DSA-REQ) message is received;
  • DSA-RVD dynamic service establishment response
  • DSA-REQ dynamic service increase request
  • Step 1003 The base station sends a Path Registration Request (Path_Reg_Req) message to the serving gateway, requesting to establish a new bearer, where the Path_Reg_Req message carries the IP quintuple information of the service flow;
  • Path_Reg_Req a Path Registration Request
  • Step 1004 The serving gateway sends the path registration request (Path_Reg_Req) message to the anchor gateway, where the path registration request (Path_Reg_Req) message carries the IP quintuple information of the service flow;
  • Step 1005 The anchor gateway (Anchor GW) detects, according to the destination IP address in the IP quintuple information and the IP address of the terminal that the anchor gateway has acquired, whether the peer is also located in the serving gateway (Serving GW) of the sending request. If yes, it is judged that local routing can be performed at the serving gateway (Serving GW);
  • the anchoring gateway determines whether the local routing can be performed at the base station; the anchoring gateway (Anchor GW) needs to further obtain the bearer information of the peer end, and the bearer information is specific. It may be a bearer identifier, an IP quintuple, or the like, where the base station indicates that the base station performs a local route on the specified service flow 7_ corresponding to the service flow corresponding to the service flow;
  • Step 1006 The anchor gateway (Anchor GW) performs resource authorization on the dynamic service increase request by using an authenticator in the access network.
  • the anchor gateway can also authorize the local route; specifically, the anchor gateway sends a resource request message to the authenticator, where the resource request message includes the service flow of the bearer established by the terminal and the pair The service flow performs an indication of local authorization; receiving authentication The resource response message returned by the device according to the indication of the local authorization of the service flow, where the resource response message carries the authorization result of the authorization of the service flow to authorize the service flow.
  • Step 1007 The anchor gateway (Anchor GW) returns a Path Registration Response (Path_Reg_Rsp) message to the serving gateway, where the path registration response message carries a local route at the serving gateway or the base station (Serving GW/BS)
  • the indication information of the local route includes at least one of the following information: an indication of a local route, a service flow information for performing local routing, and bearer information of the peer end (for example: bearer identifier, IP quintuple information);
  • Step 1008 the monthly service gateway (Serving GW) returns the path registration response (Path_Reg_Rsp) message to the base station, where the path registration response message optionally carries the indication information for performing local routing;
  • Step 1009 The base station returns a dynamic service increase request response (DSA-RSP) message to the terminal.
  • Step 1010 The terminal returns a dynamic service increase request acknowledgement (DSA-ACK) message to the base station.
  • Step 1011 The base station returns to the serving gateway (Serving GW) Path registration confirmation ( Path_Reg_Ack ) message;
  • Step 1012 The service gateway returns a Path Registration Response (Path_Reg_Rsp) message to the anchor gateway, indicating that the bearer establishment is completed.
  • Path_Reg_Rsp Path Registration Response
  • Step 1013 The anchor GW sends a resource reservation response (RR_Ack) message to the authenticator (Authenticator), indicating that the resource authorization is completed.
  • RR_Ack resource reservation response
  • Step 1014 The serving gateway performs local routing operation on the corresponding service flow on the bearer according to the indication information of the local routing of the anchor gateway (Anchor GW).
  • the base station performs a local routing operation on the corresponding service flow on the bearer according to the indication information of the local routing of the anchor gateway (Anchor GW).
  • FIG. 10B is another signaling flowchart applicable to the embodiment shown in FIG. 9.
  • the anchor gateway itself is used as a local routing execution device.
  • the embodiment includes the following steps: Step 1501 The terminal sends a dynamic service modification request (DSC-REQ) message to the base station, The base station is modified to modify an existing bearer to use the bearer to transmit the service flow;
  • DSC-REQ dynamic service modification request
  • the dynamic service modification request message carries the IP quintuple information of the service flow initiated by the terminal, where the IP quintuple information includes the source IP address, the destination IP address, the source port number, and the destination port number of the service flow. agreement type;
  • Step 1502 The base station returns a dynamic service modification response (DSC-RVD) message to the terminal, indicating that the dynamic service modification request (DSC-REQ) message is received;
  • DSC-RVD dynamic service modification response
  • DSC-REQ dynamic service modification request
  • Step 1503 The base station sends a Path Modify Request (Path_Mod_Req) message to the anchor gateway, and requests the falsified existing IP file for transmitting the service.
  • the Path_Mod_Req message carries the IP quintuple information of the service flow;
  • Step 1504 the anchor gateway (Anchor GW) detects, according to the destination IP address in the IP quintuple information, whether the peer is also located under the anchor gateway (Anchor GW); if yes, the judgment may be in the 4
  • the local routing is performed at the gateway (Anchor GW); 4
  • the anchor GW stores all the IP addresses of the terminals under the gateway, and the anchor gateway is anchored by comparing the peer IP address with the stored terminal IP address (Anchor) GW) can detect whether the peer is also located under the anchor gateway.
  • the anchor gateway (Anchor GW) performs local routing authorization on the dynamic service addition request by using an authenticator in the access network.
  • Step 1506 The anchor GW associates the IP packet of the service flow with the corresponding downlink bearer of the peer. That is, for the IP packet that meets the IP quintuple, the anchor gateway directly forwards the packet to the corresponding downlink bearer of the opposite end. This step can be performed in parallel with subsequent steps.
  • Step 1507 The anchor gateway (Anchor GW) returns the path registration response to the base station.
  • Step 1508 The base station returns a dynamic service increase request response (DSC-RSP) message to the terminal.
  • Step 1511 According to the association relationship in step 1506, the anchor GW performs a local routing operation on the corresponding service flow, and forwards the packet conforming to the quintuple of the service flow to the associated downlink bearer of the communication peer.
  • the local routing implementation method provided by the embodiment of the present invention indicates that the terminal and the peer end are located under the same base station or serving gateway according to the IP address of the peer end carried by the service flow bearer signaling and the IP address of the acquired terminal.
  • the network device routes the report corresponding to the service flow from the terminal to the peer end; or according to the IP address of the peer end carried by the service flow bearer signaling, if the peer end is also located under the anchor gateway, the anchor gateway will The corresponding message stream from the terminal is routed to the peer. Therefore, the delay of the transmission of the message corresponding to the service flow between the network elements is reduced, and the delay of the transmission of the corresponding message of the service flow to the external network is reduced.
  • the core network transmits the load.
  • FIG. 11 is a schematic structural diagram of still another embodiment of a network device according to the present invention. As shown in FIG. 11, the embodiment includes: a receiving module 111, an authorization module 112, and a notification module 113;
  • the receiving module 111 receives the service flow bearer signaling initiated by the terminal and forwarded by the original serving gateway, and the peer end is a terminal device that communicates with the terminal, and the service flow bearer signal
  • the command carries the IP address of the peer end; if it is determined that the terminal and the peer end are located under the same local route execution device according to the IP address of the peer end and the obtained IP address of the terminal, the authorization is performed.
  • the module 112 performs local routing authorization on the service flow, and the notification module 113 notifies the local routing execution device to locally route the packet corresponding to the service flow.
  • the local routing execution device may be a base station or a serving gateway according to an actual network architecture.
  • the network device provided by the embodiment of the present invention if the terminal and the peer are located under the same local route execution device, according to the IP address of the peer and the IP address of the obtained terminal, the authorization module 112 locally authorizes the service flow.
  • the operation is performed to enable the local routing execution device to locally route the packet corresponding to the service flow, thereby reducing the service by avoiding that the packet corresponding to the service flow is routed to the HA through the anchor gateway and then transmitted to the external network.
  • the delay of the transmission of packets corresponding to the flow between the network elements reduces the transmission load of the core network. Further, on the basis of the foregoing embodiment shown in FIG.
  • the authorization module 112 may further include: a sending unit, a receiving unit, where the sending unit sends a resource request message to the authenticator, where the resource request message includes the terminal And the receiving, by the receiving unit, the resource response message returned by the authenticator according to the indication of performing local routing authorization on the service flow, where the receiving unit receives the service flow of the bearer and the local routing authorization
  • the resource response message carries the authorization result that the authenticator authorizes the service flow, so that the local route execution device performs local routing on the service flow according to the authorization result.
  • FIG. 12 is a schematic flowchart of still another embodiment of a method for implementing local routing according to the present invention. As shown in FIG. 12, the embodiment of the present invention includes the following steps:
  • Step 121 Receive a service flow that is initiated by the serving gateway according to the service flow information provided by the terminal and the service flow of the peer end, where the peer end is a terminal device that communicates with the terminal, and the service flow is ⁇ The order carries the IP address of the opposite end;
  • Step 122 If the IP address of the peer end and the IP address of the obtained terminal determine that the terminal and the peer end are located under the serving gateway, send a local routing indication to the serving gateway, so that the serving gateway determines whether the The packet corresponding to the service flow is locally routed by the base station under the serving gateway.
  • the local routing implementation method provided by the embodiment of the present invention if the terminal and the peer end are located under the service gateway according to the IP address of the peer end and the IP address of the obtained terminal, send a local route indication to the serving gateway, which is avoided by
  • the anchor gateway routes the packet corresponding to the service flow to the HA and then transmits the packet to the external network, thereby reducing the delay of the transmission of the corresponding traffic between the network elements and reducing the transmission load of the core network.
  • the method further includes:
  • the serving gateway determines that the base station can perform a local routing indication according to the local routing indication, the serving gateway instructs the base station to perform a local routing operation on a message corresponding to the service flow.
  • FIG. 13 is a signaling flowchart applicable to the embodiment shown in FIG. 12.
  • the terminal when the terminal sends When a new service is started, the terminal initiates a service flow bearer signaling, and the service flow bearer signaling may be a new bearer, or may modify an existing bearer, where the service flow bearer is used to transmit the service.
  • the embodiment includes the following steps:
  • Step 1301 The terminal base station sends a dynamic service increase request (DSA-REQ) message, indicating that the base station establishes a new bearer; and the dynamic service increase request message carries the IP quintuple information of the service flow;
  • DSA-REQ dynamic service increase request
  • Step 1302 The base station returns a dynamic service establishment response (DSA-RVD) message to the terminal, indicating that the dynamic service increase request (DSA-REQ) message is received;
  • DSA-RVD dynamic service establishment response
  • DSA-REQ dynamic service increase request
  • Step 1303 The base station sends a path registration request (Path_Reg_Req) message to the serving gateway to request to establish a new bearer.
  • the path registration request message carries the IP quintuple information of the service flow, and the IP quintuple The information includes the source IP address, destination IP address, source port number, destination port number, and protocol type of the service flow.
  • Step 1304 The serving gateway sends a path registration request (Path_Reg_Req) message to the anchor gateway, where the path registration request (Path_Reg_Req) message carries the IP quintuple information of the service flow;
  • Step 1305 the anchor gateway (Anchor GW) detects, according to the destination IP address in the IP quintuple information and the IP address of the terminal that the anchor gateway has acquired, whether the peer is also located in the serving gateway (Serving GW) of the sending request. Next; if yes, local routing can be performed at the Serving GW;
  • Step 1306 The anchor gateway performs resource authorization on the path registration request message.
  • the anchor gateway can also authorize local routes
  • Step 1307 The anchor gateway returns a Path Registration Response (Path_Reg_Rsp) message to the serving gateway, where the Path Registration Response (Path_Reg_Rsp) message carries indication information for performing local routing, where the local routing is performed.
  • the indication information may include at least one of the following: a local route indication, service flow information for performing local routing, a peer identifier, and bearer information of the peer end (for example: bearer identifier, IP quintuple information);
  • Step 1308 The serving gateway detects, according to the destination IP address in the IP quintuple information, whether the peer end communicating with the terminal is located under the same base station, and if yes, performing local routing at the base station, and continuing to step 1309; if not, The serving gateway performs the local routing, and performs step 1313.
  • the monthly service gateway may also map the bearer identifier corresponding to the peer end at the base station, and the bearer identifier indicates that the local route is performed on the service flow bearer specified by
  • Step 1309 The serving gateway returns a path registration response (Path_Reg_Rsp) message to the base station, where the path registration response (Path_Reg_Rsp) message carries indication information for performing local routing.
  • Step 1310 The base station returns to the terminal. Dynamic Service Add Response (DSA-RSP) message;
  • Step 1311 The terminal sends a Dynamic Service Addition Confirmation (DSA-ACK) message to the base station;
  • Step 1312 The base station returns a Path Registration Confirmation (Path_Reg_Ack) message to the serving gateway; 1313.
  • the Serving GW returns a Path Registration Response (Path_Reg_Rsp) message to the anchor gateway (Anchor GW), indicating that the completion of the establishment of the 4 Miaoding gateway is completed;
  • Step 1314 The anchor GW sends a resource reservation response (RR_Ack) message to the authenticator (Authenticator), indicating that the resource authorization is completed.
  • RR_Ack resource reservation response
  • Step 1315 the serving gateway or the base station (Serving GW/BS) according to the anchor gateway (Anchor GW/BS).
  • the indication information of the local route sent by the GW is locally routed to the corresponding message corresponding to the service flow on the bearer.
  • the local routing implementation method provided by the embodiment of the present invention determines that the terminal and the peer end are the same service gateway or the IP address under the base station according to the IP address of the peer end carried by the service flow bearer signaling and the IP address of the acquired terminal. Then, the anchor gateway instructs the target service gateway to route the corresponding traffic of the service flow from the terminal to the peer end, because the routing corresponding to the service flow through the anchor gateway is avoided from being routed to the HA. After being transmitted to the external network, the delay of the transmission of the message corresponding to the service flow between the network elements is reduced, and the transmission load of the core network is reduced.
  • FIG. 14 is a schematic structural diagram of an embodiment of a local routing implementation system according to the present invention. As shown in FIG. 14, the embodiment includes: an anchor gateway 141, a serving gateway 142, and a base station 143;
  • the anchor gateway 141 receives the service flow information provided by the service gateway 143 according to the terminal.
  • the service flow bearer signaling with the peer end transport service flow, the opposite end is a terminal device that communicates with the terminal, and the service flow bearer signaling carries the IP address of the opposite end;
  • the anchor gateway 141 determines that the terminal and the peer are located under the serving gateway 142 according to the IP address of the peer and the obtained IP address of the terminal, sending a local routing indication to the serving gateway 142, so that the anchoring gateway 141
  • the serving gateway 142 determines, according to the local routing indication, whether the text corresponding to the service flow can be localized by the base station 143 under the serving gateway 142.
  • the local routing implementation system determines that the terminal and the peer end are the second network device 142 according to the IP address of the peer end carried in the service flow bearer signaling and the IP address of the acquired terminal, and then the first network
  • the device 141 sends a local route indication to the second network device 142.
  • the route corresponding to the service flow is routed to the HA and then transmitted to the core network through the network device, thereby reducing the message corresponding to the service flow.
  • the delay of transmission between network elements reduces the core network transmission load.
  • the serving gateway 142 determines that the base station 143 can perform the local routing indication according to the local routing indication, the serving gateway 142 instructs the base station 143 to correspond to the service flow. If the serving gateway 142 determines that the serving gateway 142 performs local routing according to the local routing indication, the serving gateway 142 locally routes the packet corresponding to the service flow.
  • the IP address in the embodiment of the present invention is an IPv4 protocol address for the scenario using the Internet Protocol version 4 (IPv4) protocol; and the Internet Protocol Version 6 (Internet Protocol Version 6)
  • IPv4 protocol address and the IPv6 protocol address are not limited to the embodiments of the present invention, as long as the various protocols of the local routing can be implemented by using the embodiments of the present invention.
  • IP addresses specified in the embodiments are all IP addresses described in the embodiments of the present invention.
  • the message transmission path is output from the target service gateway, the anchor gateway, and the HA to the core network, so Transmission path overlap occurs between the service gateway, the anchor gateway, and the HA. That is, the message between the terminal and the peer still needs to be transmitted from the target service gateway to the HA first, and then returned to the target service gateway via the HA and sent to the opposite end.
  • the target serving gateway may use the local routing technology to send the text sent by the terminal to the peer end after passing through the target serving gateway, thereby reducing the delay of transmission of the packets between the network elements and reducing the transmission of the core network.
  • the message transmission path is output from the target base station, the target service gateway, the anchor gateway, and the HA to the core network, so the target base station and the target month are served.
  • the transmission path overlap occurs between the gateway, the anchor gateway, and the HA.
  • the target base station can also use the local routing technology to send the packets sent by the terminal to the remote end, and then reduce the transmission delay of the packets between the network elements and reduce the transmission of the core network. Load.
  • the foregoing embodiment of the present invention is exemplified by the WiMAX network as an example.
  • the WiMAX does not limit the embodiment of the present invention, and the local route is triggered according to the IP address of the terminal and the IP address of the peer communicating with the terminal, thereby reducing
  • the delays of transmission between the network elements are all applicable to the network system described in the embodiments of the present invention.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention décrivent un procédé, un système et un équipement de réseau d'implémentation de routage local, ledit procédé comprenant : l'obtention d'une adresse IP (Internet Protocol) d'un terminal dans le processus de commutation du terminal ; la réception de la signalisation porteuse du flux de trafic, qui comprend les informations de flux de trafic fournies par le terminal et l'adresse IP du terminal opposé qui communique avec le terminal ; l'évaluation par l'adresse IP du terminal et du terminal opposé, pour déterminer si le terminal et le terminal opposé se trouvent sous le même dispositif d'implémentation de routage local, les opérations de routage local étant réalisées pour le message correspondant du flux de trafic. Le procédé, le système et l'équipement de réseau d'implémentation de routage local décrits dans les modes de réalisation de l'invention évitent le routage du message correspondant du flux de trafic vers l'agent-mère (HA), puis l'envoi vers le réseau externe à travers le dispositif d'implémentation de routage local, ce qui permet de réduire le temps pendant lequel le message correspondant du flux de trafic est transmis entre les éléments du réseau, et de diminuer la charge de transmission du réseau de base.
PCT/CN2010/076243 2010-04-23 2010-08-23 Procédé, système et équipement de réseau d'implémentation de routage local WO2011130983A1 (fr)

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CN103428732B (zh) * 2012-05-25 2018-09-28 中兴通讯股份有限公司 路由优化方法及系统、无线侧网元
WO2021168813A1 (fr) * 2020-02-28 2021-09-02 华为技术有限公司 Procédé de communication et appareil de communication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007288748A (ja) * 2006-04-20 2007-11-01 Yamaha Corp スイッチングハブ、ルータおよび仮想ｌａｎシステム
CN101106491A (zh) * 2006-07-11 2008-01-16 华为技术有限公司 微波接入全球互通网络中r3接口的迁移方法及其系统
US20080186977A1 (en) * 2007-02-01 2008-08-07 Motohide Nomi Terminal affiliation switchover system
CN101400063A (zh) * 2007-09-29 2009-04-01 中兴通讯股份有限公司 一种网络侧协商网元ip能力的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004221674A (ja) * 2003-01-09 2004-08-05 Ntt Docomo Inc 通信システム並びに通信システムに使用される配信管理装置及び通信方法
US7702092B2 (en) * 2005-05-02 2010-04-20 At&T Intellectual Property I, L.P. Communication system and method of routing calls to a terminating end point
EP2117201A1 (fr) * 2008-05-07 2009-11-11 Alcatel Lucent Dispositif de réseau et procédé pour routage local de trafic de données

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007288748A (ja) * 2006-04-20 2007-11-01 Yamaha Corp スイッチングハブ、ルータおよび仮想ｌａｎシステム
CN101106491A (zh) * 2006-07-11 2008-01-16 华为技术有限公司 微波接入全球互通网络中r3接口的迁移方法及其系统
US20080186977A1 (en) * 2007-02-01 2008-08-07 Motohide Nomi Terminal affiliation switchover system
CN101400063A (zh) * 2007-09-29 2009-04-01 中兴通讯股份有限公司 一种网络侧协商网元ip能力的方法

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