WO2011003354A1 - 移动网络用户面数据路由的方法、装置和系统 - Google Patents

移动网络用户面数据路由的方法、装置和系统 Download PDF

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Publication number
WO2011003354A1
WO2011003354A1 PCT/CN2010/075054 CN2010075054W WO2011003354A1 WO 2011003354 A1 WO2011003354 A1 WO 2011003354A1 CN 2010075054 W CN2010075054 W CN 2010075054W WO 2011003354 A1 WO2011003354 A1 WO 2011003354A1
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WIPO (PCT)
Prior art keywords
access network
data
tunnel
data gateway
gateway
Prior art date
Application number
PCT/CN2010/075054
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English (en)
French (fr)
Inventor
靳维生
朱文若
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.)
Filing date
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 EP10796731.7A priority Critical patent/EP2445261B1/en
Priority to JP2012518744A priority patent/JP5426025B2/ja
Priority to EP16163853.1A priority patent/EP3104660B1/en
Publication of WO2011003354A1 publication Critical patent/WO2011003354A1/zh
Priority to US13/345,140 priority patent/US8891501B2/en
Priority to US14/515,910 priority patent/US10015718B2/en
Priority to US16/000,739 priority patent/US10674420B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02Arrangements for increasing efficiency of notification or paging channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/22Manipulation of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device and system for routing data of a user plane of a mobile network.
  • the NodeB After the user equipment (UE) accesses the base station (NodeB), the NodeB transmits the packet service data sent by the UE to the access network via the mobile backhaul, and the packet service is performed by the access network.
  • the data is aggregated, and then the access network transmits the packet service data to the monthly service gateway (SGW) through a tunnel established by the GPRS Tunneling Protocol-User plane GPRS (GTPU) mode. And then transmitted by IP backbone and data gateway (PDW Gateway, PGW) to a public data network (PDN), where the packet service server in the PDN is the terminal Provide services.
  • SGW monthly service gateway
  • GTPU GPRS Tunneling Protocol-User plane GPRS
  • PGW IP backbone and data gateway
  • PGW public data network
  • the home base station is a type of base station, and is deployed as a dedicated resource in a home, a group, a company, or a school, and is generally integrated on an access network.
  • the terminal in the home base station transmits packet service data to the home base station, and transmits the data to the PDN through a tunnel between the access network and the SGW.
  • the GGSN sends the downlink data to the SGSN, and the SGSN performs data caching.
  • the SGSN sends the cached data to the SGSN.
  • the PGW sends the downlink data to the SGW, and the SGW is slowed down.
  • the downlink data is stored, and when the terminal resumes the connected state, the SGW sends the cached data to the access network.
  • the access network transmits the packet service data to the SGW through the tunnel, and then the SGW transmits the packet service data to the PDN through the IP backbone network and the PGW, and the packet service data passes during the transmission process.
  • the SGW transmits the packet service data to the PDN through the IP backbone network and the PGW, and the packet service data passes during the transmission process.
  • the method, device and system for routing data of a mobile network user plane provided by the embodiments of the present invention can reduce the transmission delay of packet service data.
  • a method for routing data of a user plane of a mobile network comprising:
  • the access network bearer of the terminal and the data gateway bearer are directly connected to each other through a tunnel established between the access network and the data gateway;
  • the data between the home base station, the home base station gateway, or the macro network access network and the data gateway is directly routed through the tunnel.
  • a device for routing data of a mobile network user plane comprising:
  • a routing module configured to directly route data between the home base station, the home base station gateway, or the macro network access network and the data gateway by using the tunnel established by the establishing module.
  • a communication system comprising an access network and a data gateway, directly connecting the access network bearer of the terminal and the data gateway bearer through a tunnel established between the access network and the data gateway, and connecting the data through the tunnel
  • the data between the incoming network and the data gateway is directly routed.
  • a communication system includes a data gateway integrated in an access network and a home base station gateway, where the home base station gateway is configured to acquire a carried core network control sent by the SGW when the mobile network core network is an evolved core network Management message of the address, the core network in the management message
  • the control plane address is translated into an access network control plane address, and the management message after replacing the control plane address is sent to the data gateway; and/or, the management message sent by the data gateway carrying the control plane address of the access network is obtained, Transmitting an access network control plane address in the management message to a core network control plane address, and transmitting a management message after replacing the control plane address to the SGW;
  • the home base station gateway acquires a management message that is sent by the SGSN and carries a control plane address of the core network, and converts a core network control plane address in the management message into an access network. Controlling the address, sending a management message after replacing the control plane address to the data gateway; and/or acquiring a management message sent by the data gateway that carries the access plane control plane address, and the access network in the management message.
  • the control plane address is translated into the core network control plane address, and the management message after replacing the control plane address is sent to the SGSN.
  • the method, device and system for routing data of a user plane data of a mobile network are performed between a home base station, a home base station gateway, or a macro network access network and a data gateway through a tunnel between the access network and the data gateway.
  • the direct routing of data shortens the transmission delay of data and ensures the quality of service of transmission.
  • FIG. 1 is a flowchart of a method for routing user plane data of a mobile network according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a network architecture of a 2G/3G access network accessing an EPC core network according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for accessing a user plane data of a mobile network in the first embodiment
  • FIG. 5 is a flowchart of a method for routing data of a mobile network user plane in Embodiment 2;
  • FIG. 6 is a flowchart of a method for routing data of a mobile network user plane in Embodiment 3;
  • FIG. 7 is a flowchart of a method for routing data of a mobile network user plane in Embodiment 4; 8 is a flowchart of a method for routing data of a user plane of a mobile network in Embodiment 5;
  • FIG. 9 is a flowchart of a method for routing data of a user plane of a mobile network in Embodiment 6;
  • FIG. 10 is a flowchart of a method for routing data of a mobile network user plane in Embodiment 7;
  • FIG. 11 is a flowchart of a method for routing data of a mobile network user plane in Embodiment 8.
  • FIG. 12 is a schematic diagram of a network architecture of a mobile network user plane data routing system in Embodiment 9;
  • FIG. 13 is a flowchart of a method for mobile network user plane data routing in Embodiment 10;
  • FIG. 14 is a flowchart of a method for routing data of a mobile network user plane in Embodiment 11;
  • FIG. 15 is a flowchart of a method for routing user data of a mobile network in Embodiment 12;
  • FIG. 16 is a schematic structural diagram of a home network according to an embodiment of the present invention.
  • FIG. 17 is a schematic structural diagram of an apparatus for routing data of a user plane of a mobile network according to an embodiment of the present invention.
  • FIG. 18 is another schematic structural diagram of an apparatus for routing data of a mobile network user plane in the embodiment shown in FIG. 17;
  • FIG. 19 is still another schematic structural diagram of an apparatus for routing data of a mobile network user plane in the embodiment shown in FIG. 17; FIG.
  • FIG. 20 is a schematic diagram of still another structure of an apparatus for routing data of a mobile network user plane in the embodiment shown in FIG.
  • FIG. 21 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 22 is a schematic structural diagram of another communication system according to an embodiment of the present invention. detailed description
  • a method for routing data of a mobile network user plane includes: a tunnel established between an access network and a data gateway, and an access network bearer and a data network of the terminal Off 7 direct docking;
  • the data between the home base station, the home base station gateway, or the macro network access network and the data gateway is directly routed through the tunnel.
  • the method further includes:
  • the access network receives a management message from the serving gateway SGW, where the management message carries a tunnel end identifier of the data gateway, and manages an uplink tunnel corresponding to the tunnel end identifier of the data gateway according to the tunnel end identifier of the data gateway. ; and / or,
  • the data gateway receives a management message from the SGW, where the management message carries a tunnel end identifier of the access network, and the tunnel end identifier corresponding to the access network is managed according to the tunnel end identifier of the access network. Downstream tunnel.
  • the determining, according to the tunnel end identifier of the data gateway, the uplink tunnel corresponding to the tunnel end identifier of the data gateway includes:
  • the tunnel end identifier of the data gateway specifically includes:
  • the determining, according to the tunnel end identifier of the data gateway, the uplink tunnel corresponding to the tunnel end identifier of the data gateway includes:
  • tunnel end identifier corresponding to the access network of the access network and the downlink tunnel corresponding to the tunnel end identifier of the access network is specifically:
  • the management message further includes a user plane address of the data gateway, so that the access network manages the row address corresponding to the user plane and the tunnel end identifier according to the user plane address and the tunnel end identifier of the data gateway in the management message.
  • the management message When the tunnel end identifier in the management message is the tunnel end identifier of the access network, the management message further includes a user plane downlink address of the access network, so that the data gateway is configured according to the access network in the management message.
  • the user plane face address and the tunnel end point identifier manage the downlink tunnel corresponding to the user plane downlink address and the tunnel end point identifier.
  • the above methods also include:
  • the SGW acquires access network offloading enable information
  • the SGW sends a management message carrying the tunnel end identifier of the data gateway to the access network; otherwise, the tunnel end identifier carrying the SGW is sent to the access network. Management message; and/or,
  • the SGW In the management process of the downlink tunnel, if the access network offload function is enabled, the SGW sends a management message carrying the tunnel end identifier of the access network to the data gateway; otherwise, the tunnel end identifier carrying the SGW is sent to the data gateway. Manage messages.
  • the obtaining, by the SGW, the access network uninstallation enable information includes:
  • the SGW receives the access network offloading enable information sent by the network side.
  • the access network offloading enablement information is the indication information, the location information, or the service quality negotiation information of the access network offloading, and is used to indicate whether the SGW is enabled to enable the access network offloading function.
  • the access network When the access network and the data gateway are unified, the access network receives the management message carrying the identifier of the terminal, and determines the unique identifier of the access network 7 corresponding to the terminal identifier according to the identifier of the terminal, and manages the access.
  • carries the corresponding uplink tunnel; and/or,
  • the core network 7 corresponding to the terminal identifier carries a unique identifier, and manages the downlink tunnel corresponding to the identifier of the core network.
  • the management message received by the access network is sent by the data gateway via the SGSN or the MME; and/or the management message received by the data gateway is sent by the access network to the SGW via the SGSN. Or sent to the SGW via the MME;
  • the management message received by the access network is sent by the SGSN; and/or the management message received by the data gateway is sent by the SGSN.
  • the managing the corresponding uplink tunnel specifically includes: establishing an uplink tunnel corresponding to the unique identifier of the access network, where the uplink tunnel is deployed in the access network and data of the terminal Between the gateways, so that the access network bearer directly interfaces with the data gateway bearer and/or
  • the downlink tunnel corresponding to the bearer identifier of the core network includes:
  • the uplink tunnel corresponding to the bearer identifier of the management access network specifically includes:
  • the managing the downlink tunnel corresponding to the bearer identifier of the core network specifically includes:
  • the downlink tunnel corresponding to the core network identifier is updated, and the downlink tunnel is deployed between the access network and the data gateway of the terminal.
  • the terminal identifier in the management message is a temporary terminal identifier allocated by IMSI, MSISDN, ⁇ -TMSL ⁇ S-TMSI or MME or SGSN.
  • the above methods also include:
  • Obtaining a terminal identifier by receiving an access network control plane message carrying a terminal identifier, where the access network
  • the control plane message is an initialization context setup request INITIAL CONTEXT SETUP REQUEST, an evolved radio access bearer setup request E-RAB SETUP REQUEST.
  • the access network Before the access network manages the uplink tunnel, it also includes:
  • the data gateway sends a triggering paging indication information, where the triggering paging indication information indicates that there is downlink data, so that the SGW or the serving GPRS support node SGSN sends a paging message to the UE according to the triggered paging indication information, indicating The UE starts the management process of the uplink tunnel.
  • the method further includes:
  • the data gateway receives, by the data gateway, the data cache enable information sent by the network side, and determining, according to the data cache enable information, whether to buffer the downlink data, and when determining the cache, buffering the downlink data; or, when the access network and the data gateway are combined
  • the data gateway acquires the connection status of the tunnel, and determines whether to buffer downlink data according to the connection status, and buffers downlink data when determining the cache.
  • the trigger paging indication information is at least one data packet in the downlink data.
  • the trigger paging indication information is an empty packet or a downlink data notification that carries the drop indication information.
  • the home base station gateway acquires a management message that is sent by the SGW and carries a core network control plane address, and converts a core network control plane address in the management message into an access network control plane address. And sending a management message after the control plane address is replaced to the data gateway; and/or acquiring a management message that is sent by the data gateway and carrying the control plane address of the access network, and converting the control plane address of the access network in the management message into The core network control plane address, and the management message after replacing the control plane address is sent to the SGW;
  • the home base station gateway acquires a management message that is sent by the SGSN and carries the control plane address of the core network, and converts the control address of the core network in the management message into the control plane of the access network. Address, the management message after the replacement of the control plane address is sent to the data gateway; and/or, the management message sent by the data gateway carrying the control plane address of the access network is obtained, The access network control plane address in the management message is translated into the core network control plane address, and the management message after replacing the control plane address is sent to the SGSN.
  • an embodiment of the present invention provides a method for routing data of a user plane of a mobile network, including:
  • Step 101 Connect the access network bearer of the terminal and the data gateway bearer directly through the tunnel established between the access network and the data gateway;
  • Step 102 Perform direct data routing between the home base station, the home base station gateway, or the macro network access network and the data gateway.
  • the method for routing user plane data in a mobile network provided by the embodiment of the present invention directly routes data between a home base station, a home base station gateway, or a macro network access network and a data gateway through a tunnel between the access network and the data gateway. , shortening the transmission delay of data and ensuring the quality of service of transmission.
  • the 2G/3G access network accesses the traditional 3G core network.
  • the SGSN is located between the access network and the GGSN, responsible for mobility management and bearer management.
  • the 2G/3G access network is connected.
  • the SGSN (Serving GPRS Support Node) is located between the access network and the serving gateway, responsible for mobility management and bearer management;
  • Figure 3 is the access to the EPC core network in the LTE access network, and 2G
  • the difference between the /3G access network access and the EPC core network is that the MME (Mobility Management Entity) is located between the access network and the serving gateway and is responsible for mobility management and bearer management.
  • MME Mobility Management Entity
  • the SGSN and the MME are both core network control plane functional entities.
  • the architecture and the process of accessing the EPC core network to the EPC core network and the LTE access network to access the EPC are basically the same.
  • the invention uses the 2G/3G access network to access the EPC description, and the LTE access network is similar. .
  • Embodiment 1 the terminal requests to establish the first radio access network bearer as an example, as shown in FIG. 4:
  • Step 401 The terminal sends an activation bearer message to the SGSN, where the activation bearer message may carry a special APN.
  • the access network may carry an indication that the access network supports direct routing of the user plane, so that The SGSN determines whether to initiate direct routing on the user plane and offload user data from the access network side according to factors such as APN, policy, user subscription, and whether the access network supports direct routing of the user plane.
  • Step 402 The SGSN sends a default bearer request to the SGW according to the activation bearer message, where the default bearer request is a first radio access network bearer established by the terminal to establish a radio access network bearer process.
  • the default bearer request may carry a local offload indication, and the offload indication carries the user plane downlink address and the TEID (tunnel end identifier) corresponding to the terminal in the SGSN.
  • Step 403 The SGW sends a default bearer request to the PGW, where the offload indication carries the user plane downlink address and the TEID corresponding to the SGW.
  • Step 404 the PGW may interact with the PCRF to perform an IP-CAN session establishment or modification.
  • Step 405 The PGW sends a default bearer response to the SGW, where the default bearer response carries the row address and TEID of the user plane corresponding to the PGW.
  • Step 406 The SGW replaces the user plane address and the TEID allocated by the local terminal for the terminal address and the TEID of the user plane corresponding to the PGW according to the uninstallation instruction in the step 402, and replaces the user plane line address and the The establishment of the default bearer response after the TEID is sent to the SGSN.
  • Step 407 The SGSN sends a radio access network bearer assignment request to the access network, where the radio access network bearer assignment request carries the user plane address and TEID of the terminal corresponding to the PGW.
  • Step 408 The RRC connection reconfiguration of the terminal and the access network.
  • Step 409 The access network sends a radio access network bearer assignment response to the SGSN, where the radio access network bearer assignment response carries the user plane downlink address and the TEID corresponding to the terminal in the access network.
  • Step 410 The SGSN sends an update bearer request to the SGW, where the update bearer request carries the user plane downlink address and the TEID corresponding to the terminal in the access network.
  • Step 411 The SGW replaces the user plane downlink address and TEID that should be locally allocated for the terminal with the user plane downlink address and TEID corresponding to the terminal in the access network according to the uninstall indication in step 402.
  • the update bearer request after replacing the user plane downlink address and the TEID is sent to the PGW.
  • Step 412 The PGW sends an update bearer response to the SGW.
  • Step 413 The SGW sends an update bearer response to the SGSN.
  • the terminal may send the first downlink data through the radio access network bearer.
  • the difference is that, in step 401, the terminal sends a PDN connection request to the MME.
  • step 407 the MME sends a PDN connection acceptance to the access.
  • Step 408 The access network sends a bearer PDN connection to the terminal.
  • Step 409 The terminal notifies the MME that the PDN connection is completed.
  • the mobile network user plane data routing method provided by this embodiment directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through a tunnel between the access network and the data gateway, The data transmission delay is shortened, and the quality of service of the transmission is guaranteed.
  • the terminal requests to establish a second radio access network as an example, as shown in FIG. 5:
  • Step 501 The terminal sends an activation second bearer request to the SGSN.
  • Step 502 The SGSN receives the second bearer request, and sends a bearer modification request to the SGW.
  • Step 504 the PGW may interact with the PCRF to perform IP-CAN session establishment/modification.
  • Step 505 The PGW sends a setup dedicated bearer request to the SGW, where the dedicated bearer request carries the row address and TEID of the user plane corresponding to the PGW.
  • radio access network bearers other than the first radio access network bearer are referred to as dedicated bearers.
  • Step 506 The SGW determines the PDN connection of the dedicated bearer according to the IMSI and the LBI (Linked EPS Bearer ID) carried in the establishment of the dedicated bearer request, and determines whether to start the access network for the terminal according to the uninstall indication in the SGW bearer context. Uninstall feature. If the offload indication is to enable the access network offload function, the SGW replaces the user face address and TEID allocated by the local device for the terminal with the row address and TEID of the user face corresponding to the PGW, and replaces the user face line. The setup dedicated bearer request after the address and TEID is sent to the SGSN.
  • IMSI Linked EPS Bearer ID
  • Step 507 The SGSN sends a radio access network bearer assignment request to the access network, where the radio access network bearer assignment request carries the user plane address and TEID of the terminal corresponding to the PGW.
  • Step 508 The RRC connection reconfiguration of the terminal and the access network.
  • Step 509 The access network sends a radio access network bearer assignment response to the SGSN, where the radio access network bearer assignment response carries the user plane downlink address and the TEID of the terminal corresponding to the access network.
  • Step 510 The SGSN sends a setup dedicated bearer response to the SGW, where the dedicated bearer response carries the user plane downlink address and TEID of the terminal corresponding to the access network.
  • Step 511 The SGW determines, according to the uninstall indication in the SGW dedicated bearer context, whether to enable the access network offload function. If the offloading indication is to enable the access network offloading function, the SGW replaces the user plane downlink address and TEID allocated by the local terminal for the terminal in the establishing dedicated bearer response with the downlink address and TEID of the terminal corresponding to the user plane of the access network. And send the replaced user plane downlink address and the TEID establishment dedicated bearer response to the PGW.
  • Step 512 The SGSN sends an activated second bearer accepting to the UE.
  • Step 602 The PGW initiates a dedicated bearer request to the SGW, where the dedicated bearer request carries the The terminal has a row address and a TEID on the user plane corresponding to the PGW.
  • the method for routing data of the user plane data of the mobile network provided by this embodiment, through the tunnel between the access network and the data gateway, directly routing data between the home base station, the home base station gateway, or the macro network and the data gateway,
  • the data transmission delay is shortened, and the quality of service of the transmission is guaranteed.
  • Step 701 The SGSN sends an update bearer request to the SGW, where the update bearer request carries the access network offload enable information.
  • the access network offloading enable information may be configured according to an operator policy or a change in network settings and configurations.
  • Step 702 If the access network offloading enable information indicates to continue to perform the access network offloading, the SGW replaces the user plane downlink address and the TEID allocated by the local terminal in the update bearer request with the terminal in the access network. Corresponding user plane downlink address and TEID, the update bearer request after replacing the user plane downlink address and the TEID is sent to the PGW; if the enabling information indicates that the access network offload function is disabled, the SGW sends the carrying message to the PGW. The terminal responds locally with the corresponding user plane downstream address and TEID update 7
  • Step 703 The PGW updates the user plane downlink address and the TEID in the local terminal-loaded context.
  • the PGW can interact with the PCRF to perform IP-CAN session establishment/modification.
  • Step 704 The PGW sends an update bearer request to the SGW, where the update bearer request carries a PGW user face address and a TEID.
  • the update request may further include an updated user face-to-face address.
  • Step 705 The SGW sends a bearer update request to the SGSN, and may bring the PGW user in step 4.
  • Step 706 The SGSN sends a radio access network bearer assignment request to the access network. If the access network offloading is continued, the radio access network bearer assignment request carries the user plane address and TEID of the terminal corresponding to the PGW. If the access network offloading function is not performed, the radio access network bearer assignment request carries the row address and TEID of the user plane corresponding to the terminal on the SGW.
  • Step 707 The RRC connection reconfiguration.
  • Step 708 The access network sends a radio access network bearer assignment response to the SGSN, where the radio access network 7 carries the response to carry the user plane downlink address and TEID corresponding to the terminal in the access network.
  • Step 709 The SGSN sends an update bearer response to the SGW, where the update bearer response carries the user plane downlink address and the TEID corresponding to the access network.
  • Step 710 If the access network offloading enable information indicates that the access network is offloaded, the SGW replaces the user plane downlink address and the TEID allocated by the local terminal in the update request with the terminal corresponding to the access network.
  • the user plane is the downlink address and the TEID. If the access network is offloaded according to the access network, the SGW sends an update bearer request carrying the downlink user plane address and the TEID corresponding to the terminal.
  • Step 711 If the access network offloading enable information indicates that the access network is offloaded, the SGW replaces the user plane address and TEID allocated by the local terminal in the update bearer request with the terminal corresponding to the PGW. The user receives the row address and the TEID, and sends the update bearer request after replacing the row address and the TEID on the user plane to the access network. If the access network offloading is not performed according to the uninstallation indication, the SGW sends and carries the terminal corresponding to the local The user's face address and TEID update bearer request.
  • the mobile network user plane data routing method provided by this embodiment through the access network and the data network
  • the tunnel between the gateways, the direct routing of data between the home base station, the home base station gateway, or the macro network and the data gateway shortens the data transmission delay and ensures the quality of the transmission service.
  • the routes of all the bearers in the single PDN connection of the user terminal can be modified in batches, that is, whether the access network is uninstalled, or not routed through the SGW.
  • Step 801 the PGW may interact with the PCRF to perform IP-CAN session establishment/modification.
  • Step 803 The SGW determines the PDN connection of the bearer according to the bearer identifier, and determines whether to enable the access network offload function according to the access network offloading enable information in the SGW bearer context. If the access network offloading enable information indicates that the access network traffic is offloaded, the SGW replaces the user face address and the TEID that should be allocated by itself into the user corresponding to the terminal in the PGW in the update dedicated bearer request to the SGSN. Line address and TEID.
  • Step 804 The SGSN sends a radio access network bearer assignment request to the access network, where the radio access network bearer assignment request carries the user plane address and TEID of the terminal corresponding to the PGW.
  • Step 805 The RRC connection reconfiguration.
  • Step 806 The access network sends a radio access network bearer assignment response to the SGSN, where the radio access network bearer assignment response carries the user plane downlink address and TEID corresponding to the terminal in the access network.
  • Step 807 The access network sends a modify bearer request to the terminal.
  • Step 808 The terminal sends a modify bearer response.
  • Step 809 The SGSN sends an update bearer response to the SGW, where the update bearer response carries the user plane downlink address and the TEID corresponding to the terminal in the access network.
  • Step 810 The SGW sends an update bearer response to the PGW. If the access network offloading is performed according to the access network offloading enabling information, the SGW sends an update bearer request to the PGW to be locally configured.
  • the user plane downlink address and TEID are replaced with the user plane downlink address and TEID corresponding to the terminal in the access network.
  • the method for routing data of the user plane data of the mobile network provided by this embodiment, through the tunnel between the access network and the data gateway, directly routing data between the home base station, the home base station gateway, or the macro network and the data gateway,
  • the data transmission delay is shortened, and the quality of service of the transmission is guaranteed.
  • Step 901 The terminal sends a modify bearer request to the SGSN.
  • Step 902 The SGSN sends a tampering request to the SGW to carry the user plane downlink address and the TEID corresponding to the terminal in the access network.
  • the method for routing data of the user plane data of the mobile network provided by this embodiment, through the tunnel between the access network and the data gateway, directly routing data between the home base station, the home base station gateway, or the macro network and the data gateway , shortening the transmission delay of data and ensuring the quality of service of transmission.
  • Step 1001 The access network sends a radio access bearer release request.
  • Step 1002 The SGSN sends an update bearer request to the SGW, where the update bearer request carries a resume bearer indication that is disabled by the access network.
  • the recovery bearer indication may be an offloading indication in the foregoing embodiment, or may be location information, and the QoS negotiation may trigger an implicit indication that the SGW initiates a bearer update to the PGW.
  • Step 1003 The SGW sends an update bearer request to the PGW, where the update bearer request carries the user plane downlink address and the TEID corresponding to the local terminal.
  • Step 1004 The PGW sends an update bearer response to the SGW.
  • Step 1005 The SGW sends an update bearer response to the SGSN.
  • Step 1006 The SGSN sends a radio access network bearer release request to the access network.
  • Step 1007 The access network releases the RRC connection.
  • Step 1008 The access network sends a radio access network bearer release response to the SGSN.
  • the method for routing data of the user plane data of the mobile network provided by this embodiment, through the tunnel between the access network and the data gateway, directly routing data between the home base station, the home base station gateway, or the macro network and the data gateway , shortening the transmission delay of data and ensuring the quality of service of transmission.
  • the terminal After the access network unloading function is enabled, the terminal goes to the idle state, so that the core network 7
  • Step 1101 The terminal sends a service request to the access network.
  • Step 1102 The access network sends the service request to the SGSN.
  • Step 1103 the authentication process.
  • Step 1104 The SGSN sends a radio access network bearer setup request to the access network, where the radio access bearer setup request carries the user plane address and TEID of the terminal corresponding to the PGW.
  • Step 1105 The air interface bearer is established.
  • Step 1106 The uplink data starts to be transmitted.
  • the access network can send data directly to the PGW.
  • Step 1107 The access network sends a radio access network bearer setup response to the SGSN, where the radio access network bearer setup response carries the user plane downlink address and the TEID corresponding to the terminal in the access network.
  • Step 1108 The SGSN sends an update bearer request to the SGW, where the update bearer request carries a recovery bearer indication of the user plane downlink address and the TEID corresponding to the access network, and is used to indicate that the access network is to be offloaded, and the downlink bearer is required. Resume establishment to the access network.
  • the recovery bearer indication may be the uninstallation indication described in the foregoing embodiment, or may be location information, and the QoS negotiation may trigger an implicit indication that the SGW initiates the bearer update to the PGW.
  • Step 1110 the PGW may interact with the PCRF to perform an IP-CAN session establishment/modification.
  • Step 1112 The SGW sends an update bearer response to the SGSN.
  • step 1104 the method further includes:
  • the SGSN should update the bearer first before this step, similar to steps 1108-1112.
  • the SGSN sends an update bearer request to the SGW, and carries a recovery bearer indication, indicating that the access network is to be offloaded, and the downlink bearer is restored to the access network.
  • the recovery bearer indication may be the uninstall indication described in the above embodiment.
  • the SGW sends an update bearer request to the PGW, where the update bearer request carries the user plane downlink address and the TEID corresponding to the local terminal.
  • the PGW sends an update bearer response to the SGW, where the update bearer response carries the user plane address and TEID allocated by the PGW.
  • the SGW sends an update 7
  • the update bearer response after the address and TEID is sent to the SGSN.
  • the mobile network user plane data routing method provided by this embodiment directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through a tunnel between the access network and the data gateway, The data transmission delay is shortened, and the quality of service of the transmission is guaranteed.
  • the terminal After the access network unloading function is enabled, the terminal enters the idle state, and the core network enters the normal terminal idle state route to ensure idle downlink data routing and paging.
  • the SGW in the embodiment may not replace the user plane address of the access network or the PGW, and only replace the TEID, the PGW. Or the access network relies on the indication sent by the network side, or the internal logic determines that the bearers need to be docked inside the device.
  • the difference between the embodiment and the foregoing embodiment is that the process of establishing and updating the bearer of the radio access network by carrying the terminal identifier for identifying the terminal in the message does not change the prior art.
  • the SGW processes the user plane address and the TEID, and the method is applicable to the traditional 3G core network at the same time.
  • the radio access network bearer identifier (RAB ID, E-RAB ID) on the access network side corresponds to the value of the network layer service access point identifier (NSAPI, traditional 3G core network) on the core network side, but is different.
  • NSAPI network layer service access point identifier
  • the PGW accesses the network control plane message (such as the S1 AP message of the EUTRAN access network S1 interface, especially the INITIAL CONTEXT SETUP REQUEST, E-RAB SETUP REQUEST, E-RAB MODIFY REQUEST, etc.) Bearer management message; Iu interface RANAP message of UTRAN access network, HNBAP message, especially access network bearer management message such as RAB ASSIGNMENT REQUEST) is sent to PGW/ to access network (especially RNC, eNodeB, HNB, HeNB, etc.) A consistent terminal identifier (such as IMSI, MSISDN, P-TMSI, S-TMSI, etc.) in the L-GGSN internal terminal context, so that the PGW and the access network determine the radio access network bearer identifier (RAB ID, E-RAB) of the terminal.
  • the network control plane message such as the S1 AP message of the EUTRAN access network S1 interface, especially the INITIAL CONTEX
  • EPS Bearer ID Correspondence relationship with an evolved packet system bearer identifier (EPS Bearer ID); or a correspondence between a radio access network bearer identifier (RAB ID, E-RAB ID) of the terminal and a network layer service access point identifier (NSAPI).
  • RAB ID radio access network bearer identifier
  • NSAPI network layer service access point identifier
  • the access network and the PGW are integrated (L-PGW)
  • the air interface and the access network bearer are established, and the access network and L- of the unified device are connected.
  • the user plane transmission channel of the PGW is switched to the internal direction, that is, the R2 transmission channel in the figure, and the external tunnel established by the normal process remains unchanged, but no data is transmitted.
  • the terminal enters or is in the idle state the air interface and the access network bearer are released, the core network bearer is not released, and the access network of the unified device and the user plane transmission channel of the L-PGW are cut.
  • Switch to the external direction that is, the R1 transmission channel in the figure, the external tunnel established by the normal process remains unchanged, and the role of data transmission is restored.
  • the mobile network user plane data routing method provided by this embodiment directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through a tunnel between the access network and the data gateway, The data transmission delay is shortened, and the quality of service of the transmission is guaranteed. It should be noted that the method described in this embodiment is also applicable to the traditional 3G core network (composed of the SGSN and the GGSN), and the access network integrates the function of the GGSN (L-GGSN).
  • the difference between the embodiment and the foregoing embodiment is that when the terminal is in the idle state, the bearer of the air interface and the radio access network is released, and the core network retains the user bearer.
  • the PGW performs downlink data buffering, and the PGW notifies the SGW to trigger the search.
  • the process of calling here is an example of the EPC core network and the UTRAN access network, as shown in Figure 13:
  • Step 1301 The access network sends a radio access network release request to the SGSN.
  • Step 1302 The SGSN sends an update bearer request to the SGW, where the update bearer request carries the enable information of the downlink data cache function, and instructs the PGW to start the downlink data cache function.
  • Step 1303 The SGW sends an update bearer request to the PGW, where the update bearer request carries the user plane downlink address and the TEID corresponding to the local terminal.
  • Step 1304 The PGW starts the local cache function according to the enable information of the downlink data cache function, and sends an update bearer response to the SGW. At this time, the downlink tunnel is restored to be established between the SGW and the PGW.
  • Step 1305 The SGW sends an update bearer response to the SGSN.
  • Step 1306 The SGSN sends a radio access network bearer release request to the access network.
  • Step 1307 The access network releases the RRC connection.
  • Step 1308 The access network sends a radio access network release response to the SGSN.
  • the downlink data When downlink data arrives, the downlink data is buffered in the PGW, and the PGW copies only one or a small number of data packets, and sends the downlink data to the SGW.
  • the PGW may also send special information.
  • the datagram or control plane signaling informs the SGW that the downlink data of the terminal arrives.
  • a timer can be set on the PGW, and the downlink data packet is not sent to the SGW before the timer expires. After the timer expires, if another downlink data packet arrives, continue to copy one or a small number of data packets as downlink data. Send to the SGW to trigger paging.
  • the bearer modification request sent by the SGSN to the SGW does not carry the cache data indication, or the cached data indication indicates that the cache is not cached, and the PGW immediately sends the cached data. Steps 2 and 10 of the fourth embodiment.
  • the method for routing data of the user plane data of the mobile network is to restore the tunnel between the SGSN and the data gateway when the terminal transits to the idle state, and buffer the downlink data in the data gateway to ensure the normal paging function. Reduced the pressure on the carrier network backhaul.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and implementing the access of the data gateway and the terminal.
  • the direct routing of the user plane between the networks, the cached data is directly sent from the data gateway to the access network, thereby reducing the pressure on the bearer network to transmit downlink data through the serving gateway, and reducing the delay.
  • the UTRAN access network accesses the traditional 3G core network as an example.
  • the specific process is as follows:
  • Step 1401 lu releases the request.
  • Step 1402 The SGSN sends an update bearer request to the GGSN, where the update bearer request carries the user plane downlink address and the TEID corresponding to the SGSN, and carries the downlink data cache function enable information, instructing the GGSN to start the downlink data cache function.
  • Step 1403 The GGSN sends an update bearer response to the SGSN.
  • the downlink tunnel recovery is established between the SGSN and the GGSN.
  • Step 1404 The SGSN sends an Iu release command to the access network.
  • Step 1405 the connection is released.
  • Step 1406 Iu release is completed.
  • a timer can be set on the GGSN. The timer does not send downlink packets to the SGSN before the timer expires. After the timeout expires, if another downlink packet arrives, continue to copy one or a small number of data packets, and send the downlink data to the SGSN to trigger the search. call.
  • the GGSN may also send a datagram or control plane signaling containing special information, and notify the SGSN that the downlink data of the terminal arrives.
  • the SGSN When the terminal initiates a service request by itself or because of the paging triggered by the downlink data, the SGSN does not carry the buffer data indication in the bearer modification request sent by the SGSN to the GGSN, or the cached data indication indicates that the buffer is not cached, and the GGSN immediately sends the cached data. Steps 2 and 10 of the fourth embodiment.
  • the method for routing data of the user plane data of the mobile network is to restore the tunnel between the SGSN and the data gateway when the terminal transits to the idle state, and buffer the downlink data in the data gateway to ensure the normal paging function. Reduced the pressure on the carrier network backhaul.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and implementing the access of the data gateway and the terminal.
  • the direct routing of the user plane between the networks, the cached data is directly sent from the data gateway to the access network, thereby reducing the pressure on the bearer network to transmit downlink data through the serving gateway, and reducing the delay.
  • the difference between the embodiment and the foregoing embodiment is that the PGW sends a downlink data notification to the SGW to instruct the SGW to trigger the paging, as shown in FIG. 15.
  • the difference is that, when downlink data arrives, the PGW sends a downlink data notification to the SGW, indicating that there is Downstream data arrives.
  • a timer can be set on the PGW, and the downlink data packet is not sent to the SGW before the timer expires. If the downlink data packet arrives after the timer expires, the downlink data notification is sent to the SGW, indicating that there is a downlink. The data arrives.
  • the method for routing data of the user plane data of the mobile network is to restore the tunnel between the SGSN and the data gateway when the terminal transits to the idle state, and buffer the downlink data in the data gateway to ensure the normal paging function. Reduced the pressure on the carrier network backhaul.
  • Data gateway sends touch Sending the indication information of the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and realizing the between the data gateway and the access network where the terminal is located
  • the direct routing of the user plane, the cached data is sent directly from the data gateway to the access network, thereby reducing the pressure on the bearer network to transmit downlink data through the serving gateway, and reducing the delay.
  • the PGW when the PGW is integrated with the access network, the PGW can buffer the downlink data of the terminal by itself, because the PGW can sense the release of the radio access network bearer corresponding to the terminal. After the user plane interface is released, the SGSN may not carry the cache data indication in the bearer update request sent to the SGW.
  • the radio access network bearer corresponding to the terminal is established.
  • the bearer modification request or the update bearer request is sent to the GGSN or the PGW, the GGSN or the PGW decrypts the downlink data cache and delivers the cached data.
  • the access network may be an RNC+NodeB, an HNB (R C+home NodeB), or an HNB GW in the UTRAN, where the PGW and the GGSN may be entities of the macro network core network (generally An entity close to the access network) may also be an entity that is integrated with the RNC, NodeB, HNB or HNB GW.
  • the method provided by the embodiment of the present invention is also applicable to the EUTRAN system, and the corresponding access network is an eNodeB ⁇ HeNB or a HeNB GW.
  • the SGSN in the foregoing embodiment is an MME, and the specific implementation method is similar, and details are not described herein again.
  • the HeNB sends the control plane address of the PGW to the HeNB GW in the control plane message of the S1 interface terminal level (for example, INITIAL UE MESSAGE) or the base station level (SI SETUP REQUEST).
  • the control plane of the HeNB GW at the S 1 interface terminal level sent to the MME The message sends its own core network side signaling forwarding address, and records the address correspondingly in the base station or terminal context of the HeNB GW.
  • the MME sends the obtained PGW (actually the core network side signaling forwarding address after the replacement of the HeNB GW) the control plane address to the SGW in a control plane message such as a new bearer request or an update bearer request, and the SGW uses the address to create a new bearer request. Or the control plane message such as the update bearer request is sent to the HeNB GW.
  • the HeNB GW replaces the destination address of the message with the control plane address of the PGW (it may further replace the source address of the message with its own base station side signaling forwarding address.
  • the SGW control plane address actually saved by the PGW on the HeNB is The base station side signaling forwarding address of the HeNB GW is transmitted to the HeNB.
  • the HeNB GW When the PGW sends a control plane message to the SGW, the HeNB GW replaces the source address of the message with its own core network side signaling forwarding address.
  • the signaling forwarding address may be released when the HeNB de-registers, the terminal deactivates the PDN connection of the PGW, or the timer of the forwarding address context without signaling transmission on the HeNB GW times out.
  • the HeNB may not send the control plane address of the PGW to the HeNB GW in the S1 interface message, and the HeNB GW directly uses the control plane address of the HeNB as the control plane address of the PGW.
  • the HNB sends the control plane address of the PGW to the HNB GW in the control plane message of the Iu interface terminal level (for example, INITIAL UE MESSAGE) or base station level (HNB REGISTRATION REQUEST).
  • the HNB GW sends its own core network side signaling forwarding address in the control plane message of the Iu interface terminal level sent to the SGSN, and records the address corresponding in the base station or terminal context of the HNB GW.
  • the SGSN sends the PGW (actually the core network side signaling forwarding address after the HNB GW is replaced) the control plane address to the SGW in the control plane message such as the new bearer request or the update bearer request, and the SGW uses the address to create a new bearer request. Or update the control plane message such as the bearer request and send it to the HNB GW.
  • the HNB GW replaces the destination address of the message with the control plane address of the PGW (you can further replace the source address of the message with its own base station side signaling forwarding address.
  • the SGW control plane address actually saved by the PGW on the HNB is The base station side signaling forwarding address of the HNB GW:) is sent to the HNB.
  • the HNB GW When the PGW sends a control plane message to the SGW, the HNB GW replaces the source address of the message with its own signaling forwarding address.
  • the signaling forwarding address may be deregistered at the HNB, the terminal deactivates the PDN connection of the PGW, or the forwarding address context on the HNB GW is untrusted Released when the transmitted timer expires.
  • the HNB may also not send the control plane address of the PGW to the HNB GW in the Iu interface message, and the HNB GW directly uses the control plane address of the HNB as the control plane address of the PGW.
  • the HNB sends the control plane address of the L-GGSN to the HNB in the control plane message of the Iu interface terminal level (for example, INITIAL UE MESSAGE) or the base station level 'J (HNB REGISTRATION REQUEST).
  • the HNB GW sends its own core network side signaling forwarding address in the control plane message of the Iu interface terminal level sent to the SGSN, and records the address correspondence in the base station or terminal context of the HNB GW.
  • the SGSN sends a control plane message such as a new bearer request or an update bearer request to the HNB GW using the address.
  • the HNB GW replaces the destination address of the message with the control plane address of the L-GGSN (you can further replace the source address of the message with its own base station side signaling forwarding address. In this case, the SGSN actually saved by the L-GGSN on the HNB.
  • the control plane address is the base station side signaling forwarding address of the HNB GW, and is sent to the HNB.
  • the HNB GW replaces the source address of the message with its own core network side signaling forwarding address and sends it to the SGSN.
  • the signaling forwarding address may be released when the HNB de-registers, the terminal deactivates the PDN connection of the L-GGSN, or the timer of the forwarding address context without signaling transmission expires on the HNB GW.
  • the HNB may also not send the control plane address of the L-GGSN to the HNB GW in the Iu interface message, and the HNB GW directly uses the control plane address of the HNB as the control plane address of the L-GGSN.
  • the gateway is a local PGW (PGW) integrated by the HNB GW and the HeNB GW.
  • PGW PGW
  • the mobile network user plane data routing method provided by this embodiment directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through a tunnel between the access network and the data gateway,
  • the data transmission delay is shortened, and the quality of service of the transmission is guaranteed.
  • the home base station gateway translates the control plane address of the message, and implements direct communication between different address domains, thereby implementing management of the tunnel between the PGW and the access network.
  • a home base station in order to meet the individualization needs of different user groups, a home base station has appeared in the 3GPP (3rd Generation Partnership Project) communication system.
  • a home base station is a type of base station that is deployed as a dedicated resource in a home, group, company, or school location to serve specific users.
  • the home base station can be set to allow only certain user terminals with private network rights to camp or access, and these user terminals can also reside or access in the public network.
  • the Home Access model is a new access model currently being studied by the 3rd Generation Partnership Project and the Non-3rd Generation Partnership (non-3GPP) standards organization.
  • FIG. 16 exemplarily provides one of the home access system architectures, where a UMTS home base station (Home NodeB, HNB, integrated RNC) is a home base station using UTRAN access technology; Home evolved NodeB , HeNB ), is a home base station using LTE/LTE+ access technology; Home non-3GPP Wireless Access Point (Home non-3GPP WAP), is a home base station using non-3GPP access technology .
  • a UMTS home base station Home NodeB, HNB, integrated RNC
  • Home evolved NodeB , HeNB is a home base station using LTE/LTE+ access technology
  • Home non-3GPP Wireless Access Point Home non-3GPP WAP
  • the type of air interface wireless technology that is not distinguished by the home base station is generally referred to as a home base station.
  • the home base station placed in the home network generally needs to pass through the home gateway (Home GW) before accessing the IP network, and the node collects the home base station, and routes and forwards signaling data between the home base station and the network element in the mobile network.
  • Home GW home gateway
  • backhaul (DSL, etc.) functions such as bearer management, QoS, and network address translation on the network.
  • the device is a different network entity from the home base station home gateway, but in physical implementation, one can be implemented on one entity.
  • the home base station gateway (HNB GW), the home evolved base station gateway (HeNB GW), and the home non-3GPP wireless access point gateway (Home non-3GPP WAP GW) are respectively through the universal IP access network, with HNB, HeNB, and Home non.
  • - Gateway network element of the home base station to which the 3GPP WAP is connected This patent does not distinguish between air interface wireless technology types, and is always called a home base station gateway.
  • the network elements in the mobile network include: Mobility Management Entity ( ⁇ ) in E-UTRAN, Serving GPRS Supporting Node (SGSN) in GPRS/UMTS, and non-3GPP networks.
  • Non-realizing entity 3GPP gateway for example, Evolved Packet Data Gateway (EPDG) in WLAN, Access Service Network Gateway (ASN GW) in Wimax, access in CDMA Gateway (Access Gateway, AGW) and High Speed Packet Data Serving Gateway (HSGW) in HRPD.
  • EDG Evolved Packet Data Gateway
  • ASN GW Access Service Network Gateway
  • HSGW High Speed Packet Data Serving Gateway
  • the mobile network user plane data routing method directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through a tunnel between the access network and the data gateway,
  • the data transmission delay is shortened, and the quality of service of the transmission is guaranteed.
  • the home base station gateway translates the control plane address of the message, and implements direct communication between different address domains, thereby implementing management of the tunnel between the PGW and the access network.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and implementing the access of the data gateway and the terminal. Direct routing of the user plane between the networks, thereby reducing the pressure on the service gateway to transmit downlink data.
  • an embodiment of the present invention provides a device for routing data of a user plane of a mobile network, including:
  • the establishing module 1701 is configured to directly connect the access network bearer of the terminal and the data gateway bearer by using a tunnel established between the access network and the data gateway;
  • the routing module 1702 is configured to directly route data between the home base station, the home base station gateway, or the macro network access network and the data gateway by using the tunnel established by the establishing module.
  • the apparatus may further include a first management module 1801 and/or a second management module 1802.
  • the first management module 1801 is configured to receive, when the device is deployed in the access network, a management message sent by the mobility management entity MME or the serving GPRS support node SGSN, when the mobile network core network is an evolved core network, The management message is sent by the serving gateway SGW to the MME or the SGSN, where the management message carries the tunnel end identifier of the data gateway, and according to the tunnel end identifier of the data gateway, when receiving the terminal identifier, receiving the message carrying the terminal identifier, The terminal identifier determines the end The access network corresponding to the end identifier carries a unique identifier, and the access network carries the uplink tunnel corresponding to the unique identifier.
  • the second management module 1802 is configured to: when the device is integrated in the data gateway, when the mobile network core network is an evolved core network, receive a management message sent by the SGW, where the management message is sent by the MME or the SGSN to the SGW.
  • the management message carries a tunnel end identifier of the access network, and manages a downlink tunnel corresponding to the tunnel end identifier of the access network according to the tunnel end identifier of the access network; or, when the tunnel adopts a terminal identifier And receiving the message carrying the identifier of the terminal, determining the core network bearer unique identifier corresponding to the terminal identifier according to the terminal identifier, and managing the downlink tunnel corresponding to the core network unique identifier.
  • the apparatus may further include:
  • the obtaining module 1901 is configured to: when the first management module or the second management module adopts the terminal identifier marking tunnel, obtain the terminal identifier by receiving an access network control plane message carrying the terminal identifier, where the access network control plane message is The initialization context setup request INITIAL CONTEXT SETUP REQUEST, the evolved radio access bearer setup request E-RAB SETUP REQUEST, the evolved radio access bearer modification request E-RAB MODIFY REQUEST or the evolved radio access bearer assignment request RAB ASSIGNMENT REQUEST.
  • the device when the device is a data gateway, the device may further include:
  • the triggering module 2001 is configured to: before the establishing module establishes a tunnel, send a triggering paging indication information, where the triggered paging indication information indicates that there is downlink data, so that the SGW or the serving GPRS support node SGSN according to the triggered paging indication The information sends a paging message to the UE, instructing the UE to start the management process of the uplink tunnel.
  • the data gateway may further include:
  • the cache module 2002 is configured to: before the triggering module sends the triggering paging indication information, receive data cache enable information sent by the network side, and buffer the downlink data when the data cache enable information indicates the cached data; or, when accessing When the network and the data gateway are unified, the connection status of the tunnel is obtained, When the tunnel is in an unconnected state, downlink data is buffered.
  • the device for routing data of the mobile network user plane provided by the embodiment of the present invention directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through a tunnel between the access network and the data gateway. , shortening the transmission delay of data and ensuring the quality of service of transmission.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and implementing the access of the data gateway and the terminal.
  • the direct routing of the user plane between the networks, the cached data is directly sent from the data gateway to the access network, thereby reducing the pressure on the bearer network to transmit downlink data through the serving gateway, and reducing the delay.
  • the home base station gateway translates the control plane address of the message, and implements direct communication between different address domains, thereby implementing management of the tunnel between the PGW and the access network.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a wireless bearer with the data network, and implementing the connection between the data gateway and the terminal. Direct routing of user planes between network accesses, thereby reducing the pressure on the service gateway to transmit downlink data.
  • the communication system provided by the embodiment of the present invention includes an access network 2101 and a data gateway 2102, and the access network of the terminal is carried by the tunnel established between the access network and the data gateway.
  • the data gateway carries the direct connection; the data between the access network and the data gateway is directly routed through the tunnel.
  • the communication system may further include:
  • the service gateway is configured to: when the tunnel adopts the tunnel end identifier, when the tunnel adopts the tunnel end identifier, determine whether to enable the access network offload function according to the access network offloading enable information; In the process, if enabled, the SGW sends a management message carrying the tunnel end identifier of the data gateway to the access network; otherwise, sends a management message carrying the tunnel end identifier of the data gateway to the access network; and/or, in the downlink tunnel In the management process, if enabled, the SGW sends a management message carrying the tunnel end identifier of the access network to the data gateway; otherwise, the management message carrying the tunnel end identifier of the SGW is sent to the data gateway.
  • the communication system provided in this embodiment directly routes data between the home base station, the home base station gateway, or the macro network access network and the data gateway through the tunnel between the access network and the data gateway, thereby shortening the data transmission. Delay, guarantee the quality of service delivered.
  • the terminal After the access network unloading function is enabled, the terminal goes to the idle state, so that the core network bearer enters the normal terminal idle state route, ensuring idle downlink data routing and paging.
  • the terminal enters the idle state the tunnel between the SGSN and the data gateway is restored, and the downlink data is buffered in the data gateway, thereby ensuring the normal paging function and reducing the pressure on the carrier network backhaul.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and implementing the access of the data gateway and the terminal.
  • the direct routing of the user plane between the networks, the cached data is directly sent from the data gateway to the access network, thereby reducing the pressure on the bearer network to transmit downlink data through the serving gateway, and reducing the delay.
  • an embodiment of the present invention provides another communication system, where the system includes a data gateway 2202 and a home base station gateway 2203 integrated in the access network 2201.
  • the home base station gateway 2203 is configured to: when the mobile network core network is an evolved core network, obtain a management message that is sent by the SGW and carries a control plane address of the core network, and convert the control address of the core network in the management message into The network control plane address is sent to the data gateway after the control plane address is replaced; and/or, the management message sent by the data gateway that carries the access plane control plane address is obtained, where the management message is sent.
  • the access network control plane address is converted into a core network control plane address, and the management message after replacing the control plane address is sent to the SGW;
  • the home base station gateway acquires a management message that is sent by the SGSN and carries a core network control plane address, and converts the core network control plane address in the management message into an access network. Controlling the address, sending a management message after replacing the control plane address to the data gateway; and/or acquiring a management message sent by the data gateway that carries the access plane control plane address, and the access network in the management message.
  • the control plane address is translated into the core network control plane address, and the management message after replacing the control plane address is sent to the SGSN.
  • the communication system provided in this embodiment through the tunnel between the access network and the data gateway, to the family
  • the direct routing of data between the base station, the home base station gateway or the macro network access network and the data gateway shortens the data transmission delay and ensures the quality of the transmission service.
  • the terminal After the access network unloading function is enabled, the terminal goes to the idle state, so that the core network bearer enters the normal terminal idle state route, ensuring idle downlink data routing and paging.
  • the terminal enters the idle state the tunnel between the SGSN and the data gateway is restored, and the downlink data is buffered in the data gateway, thereby ensuring the normal paging function and reducing the pressure on the carrier network backhaul.
  • the data gateway sends the indication information for triggering the paging, so that the serving gateway sends a paging message to the terminal according to the indication information, triggering a request for establishing a radio bearer with the data network, and implementing the access of the data gateway and the terminal.
  • the direct routing of the user plane between the networks, the cached data is directly sent from the data gateway to the access network, thereby reducing the pressure on the bearer network to transmit downlink data through the serving gateway, and reducing the delay.
  • the home base station gateway translates the control plane address of the message, and implements direct communication between different address domains, thereby implementing management of the tunnel between the PGW and the access network.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as separate products, may also be stored in a computer readable storage medium.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Description

移动网络用户面数据路由的方法、 装置和系统 本申请要求于 2009年 7月 8 日提交的, 申请号为 200910140289. 6 ,发明 名称为 "移动网络用户面数据路由的方法、 装置和系统" 的中国申请的优先 权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信领域, 尤其涉及一种移动网络用户面数据路由的方法、 装置和系统。
背景技术
终端 (User Equipment, UE )接入基站(NodeB ) 以后, 所述 NodeB将 UE发送的分组业务数据经过移动传输网络 ( Mobile backhaul )传输到接入网, 由所述接入网对所述分组业务数据进行汇聚 , 然后所述接入网将所述分组业 务数据通过以 GPRS隧道协议用户面部分( GPRS Tunneling Protocol-User plane GPRS, GTPU )方式建立的隧道传输到月良务网关 ( Serving Gateway, SGW ), 再由 IP骨千网 (IP backbone )和数据网关 (PDN Gateway, PGW )传输到公 共数据网 ( Public Data Network, PDN ), 由所述 PDN中的分组业务月良务器为 所述终端提供服务。
为了满足不同用户群的个性化需要, 出现了一种家庭基站。 所述家庭基 站是基站的一种, 作为专属资源部署在家庭、 团体、 公司或者学校等场所, 一般集成在接入网上。 家庭基站内的终端向所述家庭基站发送分组业务数据, 并通过接入网和 SGW之间的隧道传输到 PDN。
对于传统 3G核心网, 当终端转入空闲态后, 如果有下行数据到达时, GGSN将所述下行数据发给 SGSN, SGSN进行数据緩存, 当终端恢复连接态 时, SGSN将緩存数据下发给接入网; 对于演进分组核心网, 当终端转入空闲 态后, 如果有下行数据到达时, PGW将所述下行数据发送给 SGW, SGW緩 存所述下行数据, 当终端恢复连接态时, SGW将緩存数据下发给接入网。 现有技术中至少存在如下问题: 接入网将分组业务数据通过隧道传输到 SGW, 再由 SGW将所述分组业务数据经 IP骨千网、 PGW传输到 PDN, 传 输过程中分组业务数据经过的网络实体较多, 造成分组业务数据的传输时延 较大, 路由不够优化。
发明内容
本发明实施例提供的移动网络用户面数据路由的方法、 装置和系统, 能 够减小分组业务数据的传输时延。
为达到上述目的, 本发明的实施例采用如下技术方案:
一种移动网络用户面数据路由的方法, 包括:
通过接入网和数据网关之间建立的隧道, 将终端的接入网承载和数据网 关承载直接对接;
通过所述隧道将家庭基站、 家庭基站网关或宏网络接入网与数据网关之 间的数据进行直接路由。
一种移动网络用户面数据路由的装置, 包括:
建立模块, 用于通过接入网和数据网关之间建立的隧道, 将终端的接入 网承载和数据网关承载直接对接;
路由模块, 用于通过所述建立模块建立的隧道将家庭基站、 家庭基站网 关或宏网络接入网与数据网关之间的数据进行直接路由。
一种通信系统, 包括接入网和数据网关, 通过所述接入网和数据网关之 间建立的隧道, 将终端的接入网承载和数据网关承载直接对接, 通过所述隧 道将所述接入网与数据网关之间的数据进行直接路由。
一种通信系统, 所述系统包括集成于接入网的数据网关和家庭基站网关, 所述家庭基站网关用于当所述移动网络核心网为演进核心网时, 获取 SGW发送的携带核心网控制面地址的管理消息, 将所述管理消息中的核心网 控制面地址转换为接入网控制面地址, 将替换控制面地址后的管理消息发送 到所述数据网关; 和 /或, 获取所述数据网关发送的携带接入网控制面地址的 管理消息, 将所述管理消息中的接入网控制面地址转换为和核心网控制面地 址, 将替换控制面地址后的管理消息发送到 SGW;
当所述移动网络核心网为传统 3G核心网时, 所述家庭基站网关获取 SGSN发送的携带核心网控制面地址的管理消息 ,将所述管理消息中的核心网 控制面地址转换为接入网控制面地址, 将替换控制面地址后的管理消息发送 到所述数据网关; 和 /或, 获取数据网关发送的携带接入网控制面地址的管理 消息, 将所述管理消息中的接入网控制面地址转换为核心网控制面地址, 将 替换控制面地址后的管理消息发送到 SGSN。
本发明实施例提供的移动网络用户面数据路由的方法、 装置和系统, 通 过接入网和数据网关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入 网与数据网关之间进行数据的直接路由, 缩短了数据的传输时延, 保证了传 输的服务质量。 附图说明 、、 ^ 、 、 、 ^ , 、、 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例 , 对于本领域普通技术人员来讲 , 在不付出创造性劳动性的前提下 , 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的移动网络用户面数据路由的方法流程图; 图 2为本发明实施例中 2G/3G接入网接入 EPC核心网的网络架构示意图; 图 3为本发明实施例中 LTE接入网接入 EPC核心网的网络架构示意图; 图 4为实施例一中移动网络用户面数据路由的方法流程图;
图 5为实施例二中移动网络用户面数据路由的方法流程图;
图 6为实施例三中移动网络用户面数据路由的方法流程图;
图 7为实施例四中移动网络用户面数据路由的方法流程图; 图 8为实施例五中移动网络用户面数据路由的方法流程图; 图 9为实施例六中移动网络用户面数据路由的方法流程图;
图 10为实施例七中移动网络用户面数据路由的方法流程图;
图 11为实施例八中移动网络用户面数据路由的方法流程图;
图 12为实施例九中移动网络用户面数据路由系统的网络架构示意图; 图 13为实施例十中移动网络用户面数据路由的方法流程图;
图 14为实施例十一中移动网络用户面数据路由的方法流程图; 图 15为实施例十二中移动网络用户面数据路由的方法流程图; 图 16为本发明实施例中家庭网络的架构示意图;
图 17 为本发明实施例提供的移动网络用户面数据路由的装置结构示意 图;
图 18为图 17所示实施例中移动网络用户面数据路由的装置的另一结构 示意图;
图 19为图 17所示实施例中移动网络用户面数据路由的装置的又一结构 示意图;
图 20为图 17所示实施例中移动网络用户面数据路由的装置的又一结构 示意图;
图 21为本发明实施例提供的通信系统的结构示意图;
图 22为本发明实施例提供的另一种通信系统的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图 , 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
在一个实施例中, 一种移动网络用户面数据路由的方法, 包括: 通过接入网和数据网关之间建立的隧道, 将终端的接入网承载和数据网 关 7 载直接对接;
通过所述隧道将家庭基站、 家庭基站网关或宏网络接入网与数据网关之 间的数据进行直接路由。
当移动网络核心网为演进核心网时 , 所述方法还包括:
所述接入网接收来自于服务网关 SGW的管理消息,所述管理消息携带数 据网关的隧道终点标识, 根据所述数据网关的隧道终点标识, 管理所述数据 网关的隧道终点标识对应的上行隧道; 和 /或 ,
所述数据网关接收来自于 SGW的管理消息,所述管理消息携带接入网的 隧道终点标识, 才艮据所述接入网的隧道终点标识, 管理所述接入网的隧道终 点标识对应的下行隧道。
当所述管理消息为建立消息时, 所述根据所述数据网关的隧道终点标识 , 管理所述数据网关的隧道终点标识对应的上行隧道具体包括:
根据所述数据网关的隧道终点标识 , 建立所述数据网关的隧道终点标识 对应的上行隧道, 以使得终端的接入网承载与数据网关承载直接对接; 和 /或, 所述根据所述接入网的隧道终点标识, 管理所述接入网的隧道终点标识 对应的下行隧道具体包括:
根据所述数据网关的隧道终点标识 , 建立所述接入网的隧道终点标识对 应的下行隧道, 以使得终端的接入网承载与数据网关承载直接对接;
当所述管理消息为承载更新消息时 , 所述根据所述数据网关的隧道终点 标识, 管理所述数据网关的隧道终点标识对应的上行隧道具体包括:
根据所述数据网关的隧道终点标识 , 更新所述数据网关的隧道终点标识 对应的上行隧道; 和 /或,
所述才 居所述接入网的隧道终点标识, 管理所述接入网的隧道终点标识 对应的下行隧道具体包括:
才艮据所述接入网的隧道终点标识, 更新所述接入网的隧道终点标识对应 的下行隧道。 管理消息还包括数据网关的用户面上行地址, 以使得所述接入网根据所述管 理消息中数据网关的用户面上行地址和隧道终点标识, 管理所述用户面上行 地址和隧道终点标识对应的上行隧道;
当所述管理消息中的隧道终点标识为接入网的隧道终点标识时, 所述管 理消息还包括接入网的用户面下行地址 , 以使得所述数据网关根据所述管理 消息中接入网的用户面上行地址和隧道终点标识 , 管理所述用户面下行地址 和隧道终点标识对应的下行隧道。
上述方法还包括:
所述 SGW获取接入网卸载使能信息;
所述 SGW根据所述接入网卸载使能信息, 确定是否启用接入网卸载功
3匕,
在上行隧道的管理过程中, 如果启用所述接入网卸载功能, 所述 SGW向 接入网发送携带数据网关的隧道终点标识的管理消息; 否则, 向接入网发送 携带 SGW的隧道终点标识的管理消息; 和 /或,
在下行隧道的管理过程中, 如果启用所述接入网卸载功能, 所述 SGW向 数据网关发送携带接入网的隧道终点标识的管理消息; 否则, 向数据网关发 送携带 SGW的隧道终点标识的管理消息。
所述 SGW获取接入网卸载使能信息包括:
所述 SGW接收网络侧发送的接入网卸载使能信息。
所述接入网卸载使能信息为接入网卸载的指示信息、 位置信息或服务质 量协商信息, 用于指示所述 SGW是否启用接入网卸载功能。
当接入网和数据网关合一时, 所述接入网接收携带终端标识的管理消息, 才艮据所述终端标识确定所述终端标识对应的接入网 7 载唯一标识 , 管理所述 接入网 7|载标识对应的上行隧道; 和 /或,
所述数据网关接收携带终端标识的管理消息, 根据所述终端标识确定所 述终端标识对应的核心网 7 载唯一标识, 管理所述核心网 7 载标识对应的下 行隧道。
当移动网络核心网为演进核心网时, 所述接入网接收的管理消息由数据 网关经 SGSN或 MME发送; 和 /或, 所述数据网关接收的管理消息由接入网 经 SGSN发送到 SGW或经 MME发送到 SGW;
当所述移动网络核心网为传统 3G核心网时,所述接入网接收的管理消息 由 SGSN发送; 和 /或, 所述数据网关接收的管理消息由 SGSN发送。
当所述管理消息为承载建立消息时, 所述管理对应的上行隧道具体包括: 建立所述接入网承载唯一标识对应的上行隧道 , 所述上行隧道部署于所 述终端的接入网与数据网关之间, 以使得接入网承载与数据网关承载直接对 接 和 /或,
管理所述核心网承载标识对应的下行隧道具体包括:
建立所述数据网承载唯一标识对应的下行隧道, 所述下行隧道部署于所 述终端的接入网与数据网关之间 , 以使得终端的接入网承载与数据网关承载 直接对接;
当所述管理消息为承载更新消息时, 所述管理接入网承载标识对应的上 行隧道具体包括:
更新所述接入网承载标识对应的上行隧道, 所述下行隧道部署于所述终 端的接入网与数据网关之间; 和 /或,
所述管理所述核心网承载标识对应的下行隧道具体包括:
更新所述核心网 载标识对应的下行隧道, 所述下行隧道部署于所述终 端的接入网与数据网关之间。
所述管理消息中的终端标识为 IMSI、 MSISDN、 Ρ-TMSL· S-TMSI或 MME 或 SGSN分配的临时终端标识。
上述方法还包括:
通过接收携带终端标识的接入网控制面消息获取终端标识 , 所述接入网 控制面消息为初始化上下文建立请求 INITIAL CONTEXT SETUP REQUEST、 演进无线接入 载建立请求 E-RAB SETUP REQUEST. 演进无线接入 ?1^载爹 改请求 E-RAB MODIFY REQUEST 或演进无线接入承载分派请求 RAB ASSIGNMENT REQUEST。
在接入网对上行隧道管理之前, 还包括:
所述数据网关发送触发寻呼指示信息, 所述触发寻呼指示信息指示有下 行数据,以使得所述 SGW或服务 GPRS支持节点 SGSN根据所述触发寻呼指 示信息向 UE发送寻呼消息, 指示 UE启动上行隧道的管理流程。
所述数据网关发送触发寻呼指示信息之前还包括:
所述数据网关接收网络侧发送的数据緩存使能信息, 并根据所述数据緩 存使能信息, 确定是否緩存下行数据, 当确定緩存时, 緩存下行数据; 或者, 当接入网和数据网关合一时 , 所述数据网关获取所述隧道的连接状态 , 并根据所述连接状态, 确定是否緩存下行数据, 当确定緩存时, 緩存下行数 据。
所述触发寻呼指示信息为所述下行数据中的至少一个数据包。
所述触发寻呼指示信息为携带丢弃指示信息的空包或下行数据通知。 当移动网络核心网为演进核心网时 ,家庭基站网关获取所述 SGW发送的 携带核心网控制面地址的管理消息, 将所述管理消息中的核心网控制面地址 转换为接入网控制面地址 , 将替换控制面地址后的管理消息发送到数据网关; 和 /或, 获取数据网关发送的携带接入网控制面地址的管理消息, 将所述管理 消息中的接入网控制面地址转换为核心网控制面地址, 将替换控制面地址后 的管理消息发送到所述 SGW;
当所述移动网络核心网为传统 3G核心网时,家庭基站网关获取 SGSN发 送的携带核心网控制面地址的管理消息, 将所述管理消息中的核心网控制面 地址转换为接入网控制面地址 , 将替换控制面地址后的管理消息发送到数据 网关; 和 /或, 获取数据网关发送的携带接入网控制面地址的管理消息, 将所 述管理消息中的接入网控制面地址转换为核心网控制面地址, 将替换控制面 地址后的管理消息发送到 SGSN。
下面结合具体实施例和附图对本发明作进一步解释。
如图 1所示, 本发明实施例提供一种移动网络用户面数据路由的方法, 包 括:
步驟 101、 通过接入网和数据网关之间建立的隧道, 将终端的接入网承载 和数据网关承载直接对接;
步驟 102、 在家庭基站、 家庭基站网关或宏网络接入网与数据网关之间进 行数据的直接路由。
本发明实施例提供的移动网络用户面数据路由的方法, 通过接入网和数 据网关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关 之间进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。
为使本领域技术人员更加清楚地理解本发明实施例提供的技术方案, 下 面对本发明实施例作进一步介绍:
在描述具体实施例之前, 首先对现有技术中不同的网络架构作以简单介 绍:
2G/3G接入网接入传统 3G核心网, 使用 Direct Tunnel技术时, SGSN位于接入 网与 GGSN之间, 负责移动性管理和承载管理; 如图 2所示, 2G/3G接入网接 入 EPC核心网的网络架构图, SGSN (服务 GPRS支持节点)位于接入网和服务 网关之间, 负责移动性管理和承载管理; 图 3为在 LTE接入网接入 EPC核心网, 与 2G/3G接入网接入与 EPC核心网的区别在于, MME (移动性管理实体)位 于接入网和服务网关之间, 负责移动性管理和承载管理。 这里 SGSN和 MME 都是核心网控制面功能实体。 实施例中, 2G/3G接入网接入 EPC核心网与 LTE 接入网接入 EPC的架构及流程基本一致, 本发明多采用 2G/3G接入网接入 EPC 说明, LTE接入网类似。
实施例一 本实施例以终端请求建立第一个无线接入网承载为例进行说明, 如图 4所 示:
步驟 401、 终端向 SGSN发送激活承载消息, 所述激活承载消息中可以携 带特殊 APN, 接入网将该消息发往 SGSN时, 可以带上接入网是否支持用户面 直接路由的指示, 以使得 SGSN根据 APN, 策略, 用户签约, 接入网是否支持 用户面直接路由等因素, 确定是否启动用户面直接路由, 从接入网侧卸载用 户数据。
步驟 402、 SGSN根据所述激活承载消息, 向 SGW发送建立缺省承载请求, 其中所述缺省承载请求为终端建立无线接入网承载过程中建立的第一个无线 接入网承载。 所述缺省承载请求可以携带本地的卸载指示, 所述卸载指示携 带所述终端在 SGSN对应的用户面下行地址和 TEID (隧道终点标识)。
步驟 403、 SGW向 PGW发送建立缺省承载请求, 所述卸载指示携带所述 终端在 SGW对应的用户面下行地址和 TEID。
步驟 404、可选的, PGW可以与 PCRF交互,进行 IP-CAN会话建立或修改。 步驟 405、 PGW向 SGW发送建立缺省承载应答, 所述缺省承载应答携带 所述终端在 PGW对应的用户面上行地址和 TEID。
步驟 406、 SGW根据步驟 402中的卸载指示, SGW将由本地为所述终端分 配的用户面上行地址和 TEID替换为所述终端在 PGW对应的用户面上行地址 和 TEID,将替换用户面上行地址和 TEID后的建立缺省承载应答发送到 SGSN。
步驟 407、 SGSN向接入网发送无线接入网承载指派请求, 所述无线接入 网承载指派请求携带所述终端在 PGW对应的用户面上行地址和 TEID。
步驟 408、 终端和接入网的 RRC连接重配。
步驟 409、 接入网向 SGSN发送无线接入网承载指派应答, 所述无线接入 网承载指派应答携带所述终端在接入网对应的用户面下行地址和 TEID。
在步驟 409执行完成后 , 终端可以通过所述无线接入网承载发送第一个上 行数据。 步骤 410、 SGSN向 SGW发送更新承载请求, 所述更新承载请求携带所述 终端在接入网对应的用户面下行地址和 TEID。
步驟 411、 SGW根据步驟 402步中的卸载指示, SGW将本应由本地为所述 终端分配的用户面下行地址和 TEID替换为所述终端在接入网对应的用户面下 行地址和 TEID , 将替换用户面下行地址和 TEID后的更新承载请求发送到 PGW。
步骤 412、 PGW向 SGW发送更新承载应答。
步驟 413、 SGW向 SGSN发送更新承载应答。
在步驟 413执行完成后 , 终端可以通过所述无线接入网承载发送第一个下 行数据。
在 EUTRAN系统中, 与上述流程相似, 区别在于, 步骤 401、 终端向 MME 发送 PDN连接请求。
相应的, 步骤 407、 MME向接入发送携带 PDN连接接受。
步驟 408、 接入网向终端发送携带 PDN连接接受。
步驟 409、 终端通知 MME所述 PDN连接完成。
本实施例提供的移动网絡用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。
实施例二
本实施例与上述实施例区别在于, 以终端请求建立第二个无线接入网承 载为例进行说明, 如图 5所示:
步驟 501、 终端向 SGSN发送激活第二承载请求。
步驟 502、 SGSN接收到所述第二承载请求, 向 SGW发送承载修改请求。 步骤 503、 SGW向 PGW发送所述承载修改请求, 所述承载修改请求携带 所述终端在 SGW对应的用户面下行地址和 TEID。
步驟 504、 可选的, PGW可以与 PCRF交互, 进行 IP-CAN会话建立 /修改。 步骤 505、 PGW向 SGW发送建立专用承载请求, 所述专用承载请求携带 所述终端在 PGW对应的用户面上行地址和 TEID。
其中本实施例中将除第一个无线接入网承载之外的其他无线接入网承载 称为专用承载。
步驟 506、 SGW根据该建立专用承载请求携带的 IMSI和的 LBI(Linked EPS Bearer ID)确定该专用承载的 PDN连接 , 并根据 SGW承载上下文中的卸载指 示, 确定是否为所述终端启动接入网卸载功能。 如果所述卸载指示为启动接 入网卸载功能 , SGW将由本地为所述终端分配的用户面上行地址和 TEID替换 为所述终端在 PGW对应的用户面上行地址和 TEID , 并将替换用户面上行地址 和 TEID后的建立专用 载请求发送到 SGSN。
步驟 507、 SGSN向接入网发送无线接入网承载指派请求, 所述无线接入 网承载指派请求携带所述终端在 PGW对应的用户面上行地址和 TEID。
步骤 508、 终端和接入网的 RRC连接重配。
步驟 509、 接入网向 SGSN发送无线接入网承载指派应答 , 所述无线接入 网承载指派应答携带所述终端在接入网对应的用户面下行地址和 TEID。
步骤 510、 SGSN向 SGW发送建立专用承载应答, 所述专用承载应答携带 所述终端在接入网对应的用户面下行地址和 TEID。
步骤 511、 SGW根据所述 SGW专用承载上下文中的卸载指示,确定是否启 动接入网卸载功能。 如果卸载指示为启动接入网卸载功能, SGW在所述建立 专用承载应答里将由本地为所述终端分配的用户面下行地址和 TEID替换为所 述终端在接入网对应用户面下行地址和 TEID , 并将替换后的用户面下行地址 和 TEID的建立专用承载应答发送到 PGW。
步驟 512、 SGSN向 UE发送激活第二承载接受。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网 ^^妻入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 实施例三
本实施例与上述实施例区别在于, 本实施例以 PGW请求建立专用隧道为 例进行说明, 如图 6所示: 步驟 602、 PGW向 SGW发起建立专用承载请求, 所 述专用承载请求携带所述终端在 PGW对应的用户面上行地址和 TEID。
其他流程相似, 此处不再赘述。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网 ^妻入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。
实施例四
本实施例与上述实施例区别在于, SGSN^i 改已建立的隧道为例进行说 明, 如图 7所示, 具体过程如下:
步驟 701、 SGSN向 SGW发送更新承载请求, 所述更新承载请求携带接入 网卸载使能信息。 其中所述接入网卸载使能信息可以根据运营商策略或网络 设置、 配置的变化进行配置。
步驟 702、如果所述接入网卸载使能信息指示继续执行接入网卸载, SGW 将所述更新承载请求里由本地为终端分配的用户面下行地址和 TEID替换为所 述终端在接入网对应的用户面下行地址和 TEID , 将替换用户面下行地址和 TEID后的更新承载请求发送到 PGW; 如果所述使能信息指示停用所述接入网 卸载功能 , SGW向 PGW发送携带所述终端在本地对应的用户面下行地址和 TEID的更新 7|载请求。
步骤 703、 PGW更新本地的终端 载上下文中的用户面下行地址和 TEID。 可选的, PGW可以与 PCRF交互, 进行 IP-CAN会话建立 /修改。
步驟 704、 PGW向 SGW发送更新承载请求, 所述更新承载请求携带 PGW 用户面上行地址和 TEID。 所述更新 7|载请求还可以进一步包括更新后的用户 面上行地址。
步驟 705、 SGW向 SGSN发送承载更新请求, 可以带上第 4步的 PGW用户 面上行地址。 如果所述接入网卸载使能信息指示继续执行接入网卸载, SGW 向 SGSN发送更新承载请求里将由本地分配的用户面上行地址和 TEID替换为 所述终端在接入网对应的用户面上行地址和 TEID; 如果所述接入网卸载使能 信息指示停用所述接入网卸载功能, SGW发送携带所述终端在本地对应的上 行用户面地址和 TEID的 载更新请求。
步驟 706、 SGSN向接入网发送无线接入网承载指派请求, 如果继续执行 接入网卸载, 所述无线接入网承载指派请求携带的是所述终端在 PGW对应的 用户面上行地址和 TEID; 如果不执行接入网卸载功能 , 所述无线接入网承载 指派请求携带的是所述终端在 SGW对应的用户面上行地址和 TEID。
步骤 707、 RRC连接重配。
步驟 708、 接入网向 SGSN发送无线接入网承载指派应答 , 所述无线接入 网 7 载指派应答携带所述终端在接入网对应的用户面下行地址和 TEID。
步骤 709、 SGSN向 SGW发送更新承载应答, 所述更新承载应答携带所述 终端在接入网对应的用户面下行地址和 TEID。
步驟 710、如果接入网卸载使能信息指示继续执行接入网卸载, SGW将所 述更新 载请求中由本地为终端分配的用户面下行地址和 TEID替换为所述终 端在接入网对应的用户面下行地址和 TEID,;如果根据所述接入网卸载卸载指 示, 不再执行接入网卸载, SGW发送携带所述终端在本地对应的下行用户面 地址和 TEID的更新承载请求。
步驟 711、 如果所述接入网卸载使能信息指示继续执行接入网卸载, SGW 将所述更新承载请求中由本地为终端分配的用户面上行地址和 TEID替换为所 述终端在 PGW对应的用户面上行地址和 TEID , 并将替换用户面上行地址和 TEID后的更新承载请求发送到接入网; 如果根据卸载指示, 不再执行接入网 卸载, 则 SGW发送携带所述终端在本地对应的用户面上行地址和 TEID的更新 承载请求。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网^^入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 本 实施例可以批量修改用户终端单个 PDN连接中所有承载的路由, 即是否进行 接入网卸载, 通过或者不通过 SGW进行路由。
实施例五
本实施例与上述实施例区别在于, PGW对已建立的隧道进行修改, 如图 8 所示, 具体过程如下:
步驟 801、 可选的, PGW可以与 PCRF交互, 进行 IP-CAN会话建立 /修改。 步驟 802、 PGW向 SGW发送更新承载请求, 所述更新承载请求携带所述 终端在 PGW对应的用户面上行地址和 TEID。
步驟 803、 SGW根据承载标识确定该承载的 PDN连接 , 并根据 SGW承载 上下文中的接入网卸载使能信息, 确定是否启动接入网卸载功能。 如果接入 网卸载使能信息指示进行接入网流量卸载, SGW在向 SGSN发送更新专用承载 请求里, 将本应由自己分配的用户面上行地址和 TEID替换为所述终端在 PGW 对应的用户面上行地址和 TEID。
步骤 804、 SGSN向接入网发送无线接入网承载指派请求, 所述无线接入 网承载指派请求携带所述终端在 PGW对应的用户面上行地址和 TEID。
步骤 805、 RRC连接重配。
步驟 806、 接入网向 SGSN发送无线接入网承载指派应答, 所述无线接入 网承载指派应答携带所述终端在接入网对应的用户面下行地址和 TEID。
步骤 807、 接入网向终端发送修改承载请求。
步驟 808、 终端发送修改承载应答。
步驟 809. SGSN向 SGW发送更新承载应答,所述更新承载应答携带所述终 端在接入网对应的用户面下行地址和 TEID。
步驟 810、 SGW向 PGW发送更新承载应答。 如果根据所述接入网卸载使 能信息, 执行接入网卸载, 则 SGW向 PGW发送更新承载请求里将由本地配置 的用户面下行地址和 TEID替换为所述终端在接入网对应的用户面下行地址和 TEID。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网^^入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。
实施例六
本实施例与上述实施例区别在于, 终端对已建立的隧道进行 改, 如图 9 所示, 具体过程如下:
步驟 901、 终端向 SGSN发送修改承载请求。
步骤 902、 SGSN向 SGW发送携带所述终端在接入网对应的用户面下行地 址和 TEID的爹改 7 载请求。
其他流程与上述实施例相同, 此处不再赘述。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网 ^^妻入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。
实施例七
本实施例与上述实施例区别在于, 在终端转入空闲态时, 对隧道管理流 程进行说明, 如图 10所示, 具体过程如下:
步骤 1001、 接入网发送无线接入承载释放请求。
步驟 1002、 SGSN向 SGW发送更新承载请求, 所述更新承载请求携带停用 接入网卸载的恢复承载指示。 其中所述恢复承载指示可以是上述实施例中的 卸载指示, 也可以是位置信息, QoS协商等能够触发 SGW向 PGW发起承载更 新的隐式指示。
步骤 1003、 SGW向 PGW发送更新承载请求, 所述更新承载请求携带所述 终端在本地对应的用户面下行地址和 TEID。
步驟 1004、 PGW向 SGW发送更新承载应答。 步骤 1005、 SGW向 SGSN发送更新承载应答。
步驟 1006、 SGSN向接入网发送无线接入网承载释放请求。
步驟 1007、 接入网释放 RRC连接。
步骤 1008、 接入网向 SGSN发送无线接入网承载释放应答。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网 ^^妻入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 在 接入网卸载功能启用后终端转入空闲态, 使核心网 7|载进入正常的终端空闲 态路由, 保证空闲态下行数据路由和寻呼。
实施例八
本实施例与上述实施例区别在于, 在终端转入连接态时, 对隧道管理流 程进行说明, 如图 11所示, 具体过程如下:
步骤 1101、 终端向接入网发送业务请求。
步驟 1102、 接入网向 SGSN发送所述业务请求。
步驟 1103、 鉴权过程。
步骤 1104、 SGSN向接入网发送无线接入网承载建立请求, 所述无线接入 承载建立请求携带所述终端在 PGW对应的用户面上行地址和 TEID。
步骤 1105、 空口承载建立。
步驟 1106、 上行数据开始传输。 接入网可以直接将数据发给 PGW。
步驟 1107、 接入网向 SGSN发送无线接入网承载建立响应, 所述无线接入 网承载建立响应携带所述终端在接入网对应的用户面下行地址和 TEID。
步驟 1108、 SGSN向 SGW发送更新承载请求, 其中所述更新承载请求携带 所述终端在接入网对应的用户面下行地址和 TEID的恢复承载指示, 用于表明 需要进行接入网卸载, 下行承载恢复建立到接入网。 恢复承载指示可以是上 面实施例所述的卸载指示, 也可以是位置信息, QoS协商等能够触发 SGW向 PGW发起承载更新的隐式指示。 步骤 1109、 SGW向 PGW发送更新承载请求, 所述更新承载请求携带终端 在接入网对应的用户面下行地址和 TEID。
步驟 1110、 可选的, PGW可以与 PCRF交互, 进行 IP-CAN会话建立 /修改。 步骤 1111、 PGW向 SGW发送更新承载响应, 所述更新承载响应携带所述 终端在 PGW对应的用户面上行地址和 TEID。
步驟 1112、 SGW向 SGSN发送更新承载响应。
可选的, 在步骤 1104还可以进一步包括:
如果 SGSN中没有保存 PGW的用户面上行地址,本步之前, SGSN应该先 作一遍更新承载, 与步驟 1108-1112类似。 SGSN向 SGW发送更新承载请求, 携带恢复承载指示, 表明需要进行接入网卸载, 下行承载恢复建立到接入网。 恢复承载指示可以是上面实施例所述的卸载指示。 SGW向 PGW发送更新承载 请求,所述更新承载请求携带所述终端在本地对应的用户面下行地址和 TEID。 PGW向 SGW发送更新承载应答,所述更新承载应答携带 PGW分配的用户面上 行地址和 TEID。 SGW向 SGSN发送更新 7|载应答 , SGW根据恢复承载指示 , 将由本地为所述终端分配的用户面上行地址和 TEID替换为所述终端在 PGW 的用户面上行地址和 TEID, 将替换用户面上行地址和 TEID后的更新承载应答 发送到 SGSN。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 在 接入网卸载功能启用后终端转入空闲态 , 4吏核心网 载进入正常的终端空闲 态路由, 保证空闲态下行数据路由和寻呼。
需要说明的是, 在实施例一至八中, 当接入网和 PGW合一或是使用内部 接口的设备, 实施例中 SGW可以不替换接入网或 PGW的用户面地址, 只替换 TEID, PGW或接入网依靠网络侧发来的指示, 或者内部逻辑判断这些承载需 要在设备内部进行对接。 实施例九
本实施例与上述实施例区别在于, 通过在消息中携带用于识别终端的终 端标识, 对无线接入网承载进行建立、 更新的流程, 从而不改变现有技术中
SGW对用户面地址和 TEID的处理, 且所述方法同时适用于传统 3G核心网。
由于每个终端在接入网侧的无线接入网承载标识 (RAB ID,E-RAB ID)与 在核心网侧的演进分组系统承载标识 (EPS Bearer ID, 演进核心网)数值——对 应; 或者, 在接入网侧的无线接入网承载标识 (RAB ID,E-RAB ID)与在核心网 侧网络层业务接入网点标识 (NSAPI, 传统 3G核心网)数值——对应 ,但不同终 端可以重复。 本实施例中, PGW通过接入网控制面消息 (如 EUTRAN接入网 S 1接口的 S 1 AP消息 , 特别是 INITIAL CONTEXT SETUP REQUEST , E-RAB SETUP REQUEST, E-RAB MODIFY REQUEST等接入网承载管理消息; UTRAN接入网的 Iu接口 RANAP消息 , HNBAP消息 , 特别是 RAB ASSIGNMENT REQUEST等接入网承载管理消息)向接入网(特别是 RNC, eNodeB, HNB, HeNB等)发送与 PGW/L-GGSN内部终端上下文中一致的终端 标识 (如 IMSI, MSISDN, P-TMSI, S-TMSI等), 从而实现 PGW与接入网确定 终端的无线接入网承载标识 (RAB ID,E-RAB ID)与演进分组系统承载标识 (EPS Bearer ID)的对应关系; 或者终端的无线接入网承载标识 (RAB ID,E-RAB ID)与网络层业务接入网点标识 (NSAPI)的对应关系。 当然, 也可以是同时为 接入网和 PGW分配一个特殊的标识终端的指示, 在接入网和 GGSN/PGW中结 合无线接入网承载标识 (RAB ID,E-RAB ID)与演进分组系统承载标识 (EPS Bearer ID)或网络层业务接入网点标识 (NSAPI), 完成 载的——对应。
如图 12所示, 当接入网和 PGW集成在一起时(L-PGW ), 当终端转入或处 于连接态时, 空口和接入网承载建立, 合一设备的接入网和 L-PGW的用户面 传输通道切换到内部方向, 即图中 R2传输通道, 正常流程建立的外部隧道保 持不变, 只是不传输数据。 当终端转入或处于空闲态时, 空口和接入网承载 释放, 核心网承载不释放, 合一设备的接入网和 L-PGW的用户面传输通道切 换到外部方向, 即图中 R1传输通道, 正常流程建立的外部隧道保持不变, 并 恢复数据传输的作用。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 需 要说明的是, 本实施例所述的方法, 对于传统 3G核心网 (由 SGSN和 GGSN组 成)也同样适用, 这时接入网集成了 GGSN的功能( L-GGSN )。
实施例十
本实施例与上述实施例区别在于, 当终端处于空闲态, 空口和无线接入 网承载释放而核心网保留用户承载, 当有用户下行数据到来时, PGW进行下 行数据緩存, PGW通知 SGW触发寻呼的过程, 此处以 EPC核心网, UTRAN 接入网为例进行说明, 如图 13所示:
步骤 1301、 接入网向 SGSN发送无线接入网释放请求。
步驟 1302、 SGSN向 SGW发送更新承载请求, 所述更新承载请求携带下行 数据緩存功能的使能信息, 指示 PGW启动下行数据緩存功能。
步骤 1303、 SGW向 PGW发送更新承载请求, 所述更新承载请求携带所述 终端在本地对应的用户面下行地址和 TEID。
步骤 1304、 PGW根据所述下行数据緩存功能的使能信息, 启动本地的緩 存功能, 并向 SGW发送更新承载应答, 此时下行隧道恢复建立到 SGW和 PGW 之间。
步骤 1305、 SGW向 SGSN发送更新承载应答。
步驟 1306、 SGSN向接入网发送无线接入网承载释放请求。
步驟 1307、 接入网释放 RRC连接。
步骤 1308、 接入网向 SGSN发送无线接入网释放应答。
当有下行数据到来时, 下行数据在 PGW进行緩存, PGW只复制一个或者 少量的数据包, 作为下行数据发给 SGW。 PGW发送的也可以是含有特殊信息 的数据报或控制面信令, 通知 SGW有终端的下行数据到来。
可选的, PGW上可以设置定时器, 可以配置定时器超时前不再向 SGW发 送下行数据包; 定时器超时后, 如果再有下行数据包到来, 继续复制一个或 少量数据包, 作为下行数据发给 SGW, 触发寻呼。
当终端自发或因为下行数据触发的寻呼, 发起业务请求时, 在 SGSN向 SGW发送的承载修改请求中不携带緩存数据指示, 或者携带緩存数据指示表 明不緩存, PGW随即下发緩存数据, 参考实施例四的第 2步和第 10步。
本实施例提供的移动网络用户面数据路由的方法, 通过在终端转入空闲 态时, 恢复 SGSN和数据网关之间的隧道, 并在数据网关緩存了下行数据, 保 证正常寻呼功能的同时, 减轻了运营商网络 backhaul的压力。 数据网关发送触 发寻呼的指示信息, 使得服务网关根据所述指示信息, 向终端发送寻呼消息, 触发与所述数据网络之间无线承载的建立请求, 实现所述数据网关与终端所 在接入网之间用户面的直接路由, 緩存数据直接从数据网关发往接入网, 从 而减轻了通过服务网关传输下行数据对承载网的压力, 降低了时延。
实施例十一
本实施例与实施例十区别在于,此处以 UTRAN接入网接入传统 3G核心网 为例进行说明, 如图 14所示, 具体过程如下:
步骤 1401、 lu释放请求。
步驟 1402、 SGSN向 GGSN发送更新承载请求, 所述更新承载请求携带所 述终端在 SGSN对应的用户面下行地址和 TEID,并携带下行数据緩存功能的使 能信息, 指示 GGSN启动下行数据緩存功能。
步驟 1403、 GGSN向 SGSN发送更新承载应答。 所述下行隧道恢复建立到 SGSN和 GGSN之间。
步骤 1404、 SGSN向接入网发送 Iu释放命令。
步驟 1405、 连接释放。
步驟 1406、 Iu释放完成。 对于每个终端, 当有下行数据到来时, 只复制一个或者少量的数据包, 作为下行数据发给 SGSN, 触发寻呼。 GGSN上可以设置定时器, 定时器超时 前不再向 SGSN发送下行数据包; 定时期超时后, 如果再有下行数据包到来, 继续复制一个或少量数据包, 作为下行数据发给 SGSN, 触发寻呼。 GGSN发 送的也可以是含有特殊信息的数据报或控制面信令, 通知 SGSN有终端的下行 数据到来
当终端自发或因为下行数据触发的寻呼, 发起业务请求时, 在 SGSN向 GGSN发送的承载修改请求中不携带緩存数据指示 ,或者携带緩存数据指示表 明不緩存, GGSN随即下发緩存数据, 参考实施例四的第 2步和第 10步。
本实施例提供的移动网络用户面数据路由的方法 , 通过在终端转入空闲 态时, 恢复 SGSN和数据网关之间的隧道, 并在数据网关緩存了下行数据, 保 证正常寻呼功能的同时, 减轻了运营商网络 backhaul的压力。 数据网关发送触 发寻呼的指示信息, 使得服务网关根据所述指示信息, 向终端发送寻呼消息, 触发与所述数据网络之间无线承载的建立请求, 实现所述数据网关与终端所 在接入网之间用户面的直接路由, 緩存数据直接从数据网关发往接入网, 从 而减轻了通过服务网关传输下行数据对承载网的压力, 降低了时延。
实施例十二
本实施例与上述实施例区别在于, PGW通过向 SGW发送下行数据通知指 示 SGW触发寻呼,如图 15所示,区别在于, 当有下行数据到来时, PGW向 SGW 发送下行数据通知, 指示有下行数据到达。
可选的, PGW上可以设置定时器, 可以配置定时器超时前不再向 SGW发 送下行数据包; 定时器超时后, 如果再有下行数据包到来, 继续向 SGW发送 下行数据通知, 指示有下行数据到达。
本实施例提供的移动网络用户面数据路由的方法 , 通过在终端转入空闲 态时, 恢复 SGSN和数据网关之间的隧道, 并在数据网关緩存了下行数据, 保 证正常寻呼功能的同时, 减轻了运营商网络 backhaul的压力。 数据网关发送触 发寻呼的指示信息, 使得服务网关根据所述指示信息, 向终端发送寻呼消息, 触发与所述数据网络之间无线承载的建立请求, 实现所述数据网关与终端所 在接入网之间用户面的直接路由, 緩存数据直接从数据网关发往接入网, 从 而减轻了通过服务网关传输下行数据对承载网的压力, 降低了时延。
需要说明的是。 实施例十至十二中, 当 PGW与接入网合一时, 因为 PGW 能够感知终端对应的无线接入网承载的释放, 自行对终端的下行数据进行緩 存。在用户面接口释放后 ,在 SGSN向 SGW发送的承载更新请求中也可以不携 带緩存数据指示。 当终端发起业务请求, 终端对应的无线接入网承载建立, 当承载修改请求或更新承载请求发送到 GGSN或 PGW时, GGSN或 PGW自行解 除下行数据緩存, 并下发緩存数据。 其他原因触发的承载更新流程中, 例如, 在终端发生切换、转出空闲态、进入其他接入网(非卸载接入网),进行路由区、 跟踪区更新或发起业务请求时, 需要指示 PGW解除下行数据緩存功能。
实施例一至十二中, 所述接入网在 UTRAN中可以为 RNC+NodeB、 HNB ( R C+home NodeB ), 或 HNB GW, 所述 PGW和 GGSN可以是宏网络核心网 的实体(一般为靠近接入网的实体), 也可以是与 RNC, NodeB、 HNB或 HNB GW合一的实体。同时,本发明实施例提供的方法同样适用于 EUTRAN系统中, 相应接入网为 eNodeB\ HeNB或 HeNB GW。 EUTRAN系统中 ,上述实施例中的 SGSN则为 MME, 由于具体实现方法相似, 此处不再赘述。
实施例十三
本实施例与上述实施例区别在于, 在 PGW或 GGSN和接入网合一时, 为 保证 PGW/GGSN能够正常与 SGW/SGSN通信, 实现隧道管理的目的, 本实施 例提出了如下方法:
本实施例以如下应用场景为例进行说明:
演进核心网,演进家庭基站: HeNB在 S1接口终端级别(例如, INITIAL UE MESSAGE)或基站级别(SI SETUP REQUEST)的控制面消息里, 将 PGW的控 制面地址发给 HeNB GW。 HeNB GW在发往 MME的 S 1接口终端级别的控制面 消息里发送自己的核心网侧信令转发地址, 并将地址对应记录在 HeNB GW的 基站或终端上下文里。 MME将获得的 PGW (实际上是 HeNB GW替换后的核心 网侧信令转发地址)控制面地址在新建承载请求或者更新承载请求等控制面消 息里发给 SGW, SGW使用该地址将新建承载请求或者更新承载请求等控制面 消息发给 HeNB GW。 HeNB GW将消息的目的地址替换为 PGW的控制面地址 (还可以进一步将消息的源地址替换为自己的基站侧信令转发地址, 这种情况 下 HeNB上的 PGW实际保存的 SGW控制面地址是 HeNB GW的基站侧信令转 发地址), 发送给 HeNB。 当 PGW向 SGW发送控制面消息时, HeNB GW将消息 的源地址替换为自己的核心网侧信令转发地址。 该信令转发地址可以在 HeNB 去注册、 终端去激活 PGW的 PDN连接, 或 HeNB GW上的该转发地址上下文无 信令传输的定时器超时的时候释放。 HeNB也可以不把 PGW的控制面地址在 S1 接口消息里发给 HeNB GW, HeNB GW直接使用 HeNB的控制面地址做为 PGW 的控制面地址。
演进核心网, 3G家庭基站: HNB在 Iu接口终端级别(例如 , INITIAL UE MESSAGE)或基站级别(HNB REGISTRATION REQUEST)的控制面消息里, 将 PGW的控制面地址发给 HNB GW。 HNB GW在发往 SGSN的 Iu接口终端级别 的控制面消息里发送为自己的核心网侧信令转发地址, 并将地址对应记录在 HNB GW的基站或终端上下文里。 SGSN将获得的 PGW (实际上是 HNB GW替 换后的核心网侧信令转发地址)控制面地址在新建承载请求或者更新承载请求 等控制面消息里发给 SGW, SGW使用该地址将新建承载请求或者更新承载请 求等控制面消息发给 HNB GW。 HNB GW将消息的目的地址替换为 PGW的控 制面地址 (还可以进一步将消息的源地址替换为自己的基站侧信令转发地址, 这种情况下 HNB上的 PGW实际保存的 SGW控制面地址是 HNB GW的基站侧 信令转发地址:), 发送给 HNB。 当 PGW向 SGW发送控制面消息时, HNB GW 将消息的源地址替换为自己的信令转发地址。 该信令转发地址可以在 HNB去 注册、 终端去激活 PGW的 PDN连接, 或 HNB GW上的该转发地址上下文无信 令传输的定时器超时的时候释放。 HNB也可以不把 PGW的控制面地址在 Iu接 口消息里发给 HNB GW, HNB GW直接使用 HNB的控制面地址做为 PGW的控 制面地址。
传统 3G核心网, 3G家庭基站: HNB在 Iu接口终端级别(例如, INITIAL UE MESSAGE)或基站级另' J (HNB REGISTRATION REQUEST)的控制面消息里, 将 L-GGSN的控制面地址发给 HNB GW。 HNB GW在发往 SGSN的 Iu接口终端 级别的控制面消息里发送为自己的核心网侧信令转发地址, 并将地址对应记 录在 HNB GW的基站或终端上下文里。 SGSN使用该地址将新建承载请求或者 更新承载请求等控制面消息发给 HNB GW。 HNB GW将消息的目的地址替换 为 L-GGSN的控制面地址 (还可以进一步将消息的源地址替换为自己的基站侧 信令转发地址 , 这种情况下 HNB上的 L-GGSN实际保存的 SGSN控制面地址是 HNB GW的基站侧信令转发地址), 发送给 HNB。 当 L-GGSN向 SGSN发送控制 面消息时, HNB GW将消息的源地址替换为自己的核心网侧信令转发地址, 发送给 SGSN。该信令转发地址可以在 HNB去注册、终端去激活 L-GGSN的 PDN 连接, 或 HNB GW上的该转发地址上下文无信令传输的定时器超时的时候释 放。 HNB也可以不把 L-GGSN的控制面地址在 Iu接口消息里发给 HNB GW, HNB GW直接使用 HNB的控制面地址做为 L-GGSN的控制面地址。
本实施例中网关为 HNB GW、 HeNB GW集成的本地 PGW(PGW)。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 家 庭基站网关对消息的控制面地址进行转换, 实现了不同地址域之间的直接通 信, 从而实现对 PGW和接入网之间隧道的管理。
需要说明的是, 实施例十三以移动网络用户面数据路由过程中, PGW和 接入网合一时, 解决 PGW和 SGW之间地址冲突的问题, 但不限于此, 在通过 控制面传输数据时, 同样适用。 实施例十四
本实施例中,为了满足不同用户群的个性化需要,在 3GPP( 3rd Generation Partnership Project 第三代合作伙伴计划)通信系统中, 出现了一种家庭基站。 家庭基站是基站的一种, 作为专属资源被部署在家庭、 团体、 公司或者学校 等场所使用, 为一些特定用户服务。 家庭基站可以设置为只允许某些具有私 有网络权限的用户终端驻留或接入, 同时, 这些用户终端也能在公网中驻留 或接入。 家庭接入(Home Access )模式是目前第三代合作伙伴计划和非第三 代合作伙伴计划 (non-3GPP )标准组织正在研究的一种新的接入模式。
图 16以示例性的提供了家庭接入系统架构中的一种, 其中, UMTS家庭基 站(Home NodeB, HNB, 集成 RNC ), 为使用 UTRAN接入技术的家庭基站; 家庭演进基站( Home evolved NodeB , HeNB ), 为使用 LTE/LTE+接入技术的 家庭基站; 家庭非 3GPP无线接入点 ( Home non-3GPP Wireless Access Point, Home non-3GPP WAP ), 为使用 non-3GPP接入技术的家庭基站。本专利中对于 家庭基站不区分空口无线技术类型, 一律称为家庭基站。
放置在家庭网络的家庭基站,在接入 IP网络之前,一般还要通过家庭网关 ( Home GW ),该节点汇集家庭基站,路由和转发家庭基站和移动网絡中的网 元之间的信令数据, backhaul ( DSL等) 网络上的承载管理, QoS和网络地址 转换等功能。 从逻辑上, 该设备与家庭基站家庭网关是不同的网络实体, 但 从物理实现上, 一l 可以在一个实体上实现。
家庭基站网关 (HNB GW )、 家庭演进基站网关 ( HeNB GW )和家庭非 3GPP无线接入点网关( Home non-3GPP WAP GW )分别为通过通用的 IP接入 网络, 与 HNB、 HeNB和 Home non-3GPP WAP相连的家庭基站的网关网元。 本 专利中不区分空口无线技术类型, 一律称为家庭基站网关。
移动网络中的网元包括: E-UTRAN中的移动性管理实体 ( Mobility Management Entity , ΜΜΕ )、 GPRS/UMTS中的服务 GPRS支持节点(Serving GPRS Supporting Node , SGSN )和 non-3GPP网络中包括多种实现实体的非 3GPP网关( non-3GPP GW ), 例如 , WLAN中的演进分组数据网关( Evolved Packet Data Gateway , EPDG )、 Wimax中的接入业务网络网关( Access Service Network Gateway, ASN GW )、 CDMA中的接入网关( Access Gateway, AGW ) 及 HRPD中的高速分组数据服务网关( HRPD Serving Gateway , HSGW )等。
本实施例提供的移动网络用户面数据路由的方法, 通过接入网和数据网 关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关之间 进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 家 庭基站网关对消息的控制面地址进行转换, 实现了不同地址域之间的直接通 信, 从而实现对 PGW和接入网之间隧道的管理。 数据网关发送触发寻呼的指 示信息, 使得服务网关根据所述指示信息, 向终端发送寻呼消息, 触发与所 述数据网络之间无线承载的建立请求 , 实现所述数据网关与终端所在接入网 之间用户面的直接路由 , 从而减轻了服务网关传输下行数据的压力。
如图 17所示, 本发明实施例提供一种移动网络用户面数据路由的装置, 包括:
建立模块 1701 , 用于通过接入网和数据网关之间建立的隧道, 将终端的 接入网承载和数据网关承载直接对接;
路由模块 1702, 用于通过所述建立模块建立的隧道将家庭基站、 家庭基 站网关或宏网络接入网与数据网关之间的数据进行直接路由。
进一步的, 如图 18所示, 所述装置还可以进一步包括第一管理模块 1801 和 /或第二管理模块 1802,
所述第一管理模块 1801 , 用于在所述装置部署于接入网时, 当移动网络 核心网为演进核心网时, 接收移动管理实体 MME或服务 GPRS支持节点 SGSN 发送的管理消息, 所述管理消息由服务网关 SGW发送给 MME或 SGSN, 所述 管理消息携带数据网关的隧道终点标识 , 根据所述数据网关的隧道终点标识 , 终端标识标记时, 接收携带终端标识的消息, 4艮据所述终端标识确定所述终 端标识对应的接入网承载唯一标识 , 管理所述接入网承载唯一标识对应的上 行隧道;
所述第二管理模块 1802, 用于在所述装置集成于数据网关时, 当移动网 络核心网为演进核心网时, 接收 SGW发送的管理消息, 所述管理消息由 MME 或 SGSN发给 SGW, 所述管理消息携带接入网的隧道终点标识,根据所述接入 网的隧道终点标识, 管理所述接入网的隧道终点标识对应的下行隧道; 或者, 当所述隧道采用终端标识标记时, 接收携带终端标识的消息, 才艮据所述终端 标识确定所述终端标识对应的核心网承载唯一标识 , 并管理所述所述核心网 载唯一标识对应的下行隧道。
可选的, 如图 19所示, 所述装置还可以进一步包括:
获取模块 1901, 用于当所述第一管理模块或第二管理模块采用终端标识 标记隧道时 , 通过接收携带终端标识的接入网控制面消息获取终端标识, 所 述接入网控制面消息为初始化上下文建立请求 INITIAL CONTEXT SETUP REQUEST, 演进无线接入承载建立请求 E-RAB SETUP REQUEST、 演进无线 接入承载修改请求 E-RAB MODIFY REQUEST或演进无线接入承载分派请求 RAB ASSIGNMENT REQUEST。
可选的, 如图 20所示, 当所述装置为数据网关时, 所述装置还可以进一 步包括:
触发模块 2001 , 用于在所述建立模块建立隧道之前, 发送触发寻呼指示 信息, 所述触发寻呼指示信息指示有下行数据, 以使得 SGW或服务 GPRS支持 节点 SGSN根据所述触发寻呼指示信息向 UE发送寻呼消息 , 指示 UE启动上行 隧道的管理流程。
进一步的, 如图 20所示, 所述数据网关还可以进一步包括:
緩存模块 2002, 用于在触发模块发送触发寻呼指示信息之前, 接收网络 侧发送的数据緩存使能信息, 在所述数据緩存使能信息指示緩存数据时, 緩 存下行数据; 或者, 当接入网和数据网关合一时, 获取所述隧道的连接状态, 在所述隧道处于未连接态时, 緩存下行数据。
本发明实施例提供的移动网络用户面数据路由的装置, 通过接入网和数 据网关之间的隧道, 对家庭基站、 家庭基站网关或宏网络接入网与数据网关 之间进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 数据网关发送触发寻呼的指示信息, 使得服务网关根据所述指示信息, 向终 端发送寻呼消息, 触发与所述数据网络之间无线承载的建立请求, 实现所述 数据网关与终端所在接入网之间用户面的直接路由, 緩存数据直接从数据网 关发往接入网, 从而减轻了通过服务网关传输下行数据对承载网的压力, 降 低了时延。 家庭基站网关对消息的控制面地址进行转换, 实现了不同地址域 之间的直接通信, 从而实现对 PGW和接入网之间隧道的管理。 数据网关发送 触发寻呼的指示信息, 使得服务网关根据所述指示信息, 向终端发送寻呼消 息, 触发与所述数据网络之间无线承栽的建立请求, 实现所述数据网关与终 端所在接入网之间用户面的直接路由, 从而减轻了服务网关传输下行数据的 压力。
另外, 如图 21所示, 本发明实施例提供的通信系统, 包括接入网 2101和 数据网关 2102, 通过所述接入网和数据网关之间建立的隧道, 将终端的接入 网承载和数据网关承载直接对接; 通过所述隧道将所述接入网与数据网关之 间的数据进行直接路由。
可选的, 所述通信系统还可以进一步包括:
服务网关, 用于在所述隧道采用隧道终点标识标记时, 当所述隧道采用 隧道终点标识标记时, 根据接入网卸载使能信息, 确定是否启用接入网卸载 功能; 在上行隧道的管理过程中, 如果启用, 所述 SGW向接入网发送携带数 据网关的隧道终点标识的管理消息; 否则, 向接入网发送携带数据网关的隧 道终点标识的管理消息; 和 /或, 在下行隧道的管理过程中, 如果启用, 所述 SGW向数据网关发送携带接入网的隧道终点标识的管理消息; 否则, 向数据 网关发送携带 SGW的隧道终点标识的管理消息。 本实施例提供的通信系统, 通过接入网和数据网关之间的隧道, 对家庭 基站、 家庭基站网关或宏网络接入网与数据网关之间进行数据的直接路由, 缩短了数据的传输时延, 保证了传输的服务质量。 在接入网卸载功能启用后 终端转入空闲态, 使核心网承载进入正常的终端空闲态路由, 保证空闲态下 行数据路由和寻呼。 通过在终端转入空闲态时, 恢复 SGSN和数据网关之间的 隧道, 并在数据网关緩存了下行数据, 保证正常寻呼功能的同时, 减轻了运 营商网络 backhaul的压力。 数据网关发送触发寻呼的指示信息, 使得服务网关 根据所述指示信息, 向终端发送寻呼消息, 触发与所述数据网络之间无线承 载的建立请求, 实现所述数据网关与终端所在接入网之间用户面的直接路由, 緩存数据直接从数据网关发往接入网, 从而减轻了通过服务网关传输下行数 据对承载网的压力, 降低了时延。
如图 22所示, 本发明实施例提供另一种通信系统, 所述系统包括集成于 接入网 2201的数据网关 2202和家庭基站网关 2203 ,
所述家庭基站网关 2203用于当所述移动网络核心网为演进核心网时, 获 取 SGW发送的携带核心网控制面地址的管理消息 , 将所述管理消息中的核心 网控制面地址转换为接入网控制面地址, 将替换控制面地址后的管理消息发 送到所述数据网关; 和 /或, 获取所述数据网关发送的携带接入网控制面地址 的管理消息, 将所述管理消息中的接入网控制面地址转换为和核心网控制面 地址, 将替换控制面地址后的管理消息发送到 SGW;
当所述移动网络核心网为传统 3G核心网时,所述家庭基站网关获取 SGSN 发送的携带核心网控制面地址的管理消息, 将所述管理消息中的核心网控制 面地址转换为接入网控制面地址, 将替换控制面地址后的管理消息发送到所 述数据网关; 和 /或, 获取数据网关发送的携带接入网控制面地址的管理消息, 将所述管理消息中的接入网控制面地址转换为核心网控制面地址, 将替换控 制面地址后的管理消息发送到 SGSN。
本实施例提供的通信系统, 通过接入网和数据网关之间的隧道, 对家庭 基站、 家庭基站网关或宏网络接入网与数据网关之间进行数据的直接路由 , 缩短了数据的传输时延, 保证了传输的服务质量。 在接入网卸载功能启用后 终端转入空闲态, 使核心网承载进入正常的终端空闲态路由, 保证空闲态下 行数据路由和寻呼。 通过在终端转入空闲态时, 恢复 SGSN和数据网关之间的 隧道, 并在数据网关緩存了下行数据, 保证正常寻呼功能的同时, 减轻了运 营商网络 backhaul的压力。 数据网关发送触发寻呼的指示信息, 使得服务网关 根据所述指示信息, 向终端发送寻呼消息, 触发与所述数据网络之间无线承 载的建立请求, 实现所述数据网关与终端所在接入网之间用户面的直接路由, 緩存数据直接从数据网关发往接入网 , 从而减轻了通过服务网关传输下行数 据对承载网的压力, 降低了时延。 家庭基站网关对消息的控制面地址进行转 换, 实现了不同地址域之间的直接通信, 从而实现对 PGW和接入网之间隧道 的管理。
本领域普通技术人员可以理解实现上述实施例方法携带的全部或部分步 骤是可以通过程序来指令相关的硬件完成, 所述的程序可以存储于一种计算 机可读存储介质中, 该程序在执行时, 包括方法实施例的步驟之一或其组合。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理模块中, 也可以是各个单元单独物理存在 , 也可以两个或两个以上单元集成在一个模 块中。 上述集成的模块既可以采用硬件的形式实现, 也可以采用软件功能模 块的形式实现。 所述集成的模块如果以软件功能模块的形式实现并作为独立 的产品销售或使用时, 也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应所述以权利要求的保护范围为准。

Claims

权利 要求 书
1、 一种移动网络用户面数据路由的方法, 其特征在于, 包括:
建立接入网和数据网关之间的隧道, 将终端的接入网承载和数据网关承载 直接对接;
通过所述隧道将家庭基站、 家庭基站网关或宏网络接入网与数据网关之间 的数据进行直接路由。
2、 根据权利要求 1所述的方法, 其特征在于, 所述建立接入网和数据网关 之间的隧道, 将终端的接入网承载和数据网关承载直接对接, 包括:
所述接入网接收移动管理实体 MME或服务 GPRS支持节点 SGSN发送的 数据网关的隧道终点标识, 根据所述数据网关的隧道终点标识, 建立所述数据 网关的隧道终点标识对应的上行隧道, 以使得终端的接入网承载与数据网关承 载直接对接; 和 /或,
所述数据网关接收 SGW发送的接入网的隧道终点标识,根据所述数据网关 的隧道终点标识, 建立所述接入网的隧道终点标识对应的下行隧道, 以使得终 端的接入网承载与数据网关承载直接对接。
3、 根据权利要求 2所述的方法, 其特征在于, 在建立所述数据网关的隧道 终点标识对应的上行隧道之后 , 所述方法还包括:
根据所述数据网关的隧道终点标识 , 更新所述数据网关的隧道终点标识对 应的上行暖道; 和 /或,
在建立所述接入网的隧道终点标识对应的下行隧道之后, 所述方法还包括: 才艮据所述接入网的隧道终点标识, 更新所述接入网的隧道终点标识对应的 下行隧道。
4、 根据权利要求 2所述的方法, 其特征在于, 所述方法还包括:
所述接入网接收移动管理实体 MME或服务 GPRS支持节点 SGSN发送的 所述数据网关的用户面上行地址 , 以使得所述接入网根据所述数据网关的用户 面上行地址和隧道终点标识, 建立所述用户面上行地址和隧道终点标识对应的 上亍隧道;
所述数据网关接收所述服务网关发送的接入网的用户面下行地址, 以使得 所述数据网关根据所述接入网的用户面上行地址和隧道终点标识, 建立所述用 户面下行地址和隧道终点标识对应的下行隧道。
5、 根据权利要求 2所述的方法, 其特征在于, 还包括:
所述 SGW获取接入网卸载使能信息;
所述 SGW根据所述接入网卸载使能信息, 确定是否启用接入网卸载功能; 如果启用所述接入网卸载功能 ,所述 SGW向接入网发送所述数据网关的隧 道终点标识, 以建立所述数据网关的隧道终点标识对应的上行隧道; 和 /或, 如果启用所述接入网卸载功能,所述 SGW向数据网关发送所述接入网的隧 道终点标识, 以建立所述数据网关的隧道终点标识对应的上行隧道。
6、 根据权利要求 1所述的方法, 其特征在于, 当接入网和数据网关集成在 一起时,
所述建立接入网和数据网关之间的隧道, 将终端的接入网承载和数据网关 承载直接对接, 包括:
所述接入网接收携带终端标识的管理消息, 根据所述终端标识确定所述终 端标识对应的接入网承载标识, 建立所述接入网承载唯一标识对应的上行隧道, 所述上行隧道部署于所述终端的接入网与数据网关之间, 以使得终端的接入网 承载与数据网关承载直接对接; 和 /或,
所述数据网关接收携带终端标识的管理消息,根据所述终端标识确定所述终 端标识对应的核心网承载标识 , 建立所述数据网承载唯一标识对应的下行隧道, 所述下行隧道部署于所述终端的接入网与数据网关之间, 以使得终端的接入网 承载与数据网关承载直接对接;
7、 根据权利要求 6所述的方法, 其特征在于, 在建立所述接入网承载唯一 标识对应的上行隧道之后, 所述方法还包括:
更新所述接入网承载标识对应的上行隧道, 所述下行隧道部署于所述终端 的接入网与数据网关之间; 和 /或,
在建立所述数据网承载唯一标识对应的下行隧道之后, 所述方法还包括: 更新所述核心网承载标识对应的下行隧道, 所述下行隧道部署于所述终端 的接入网与数据网关之间。
8、 根据权利要求 1所述的方法, 其特征在于, 在建立接入网和数据网关之 间的隧道之前 , 所述方法还包括:
所述数据网关发送触发寻呼指示信息, 所述触发寻呼指示信息指示有下行 数据到达,以使得所述 SGW或服务 GPRS支持节点 SGSN根据所述触发寻呼指 示信息向终端发送寻呼消息 , 指示所述终端启动建立所述接入网和数据网关之 间的随道。
9、 根据权利要求 8所述的方法, 其特征在于, 所述数据网关发送触发寻呼 指示信息之前还包括:
所述数据网关接收数据緩存使能信息, 并根据所述数据緩存使能信息确定 緩存下行数据, 并緩存下行数据; 或者,
当接入网和数据网关集成在一起时, 所述数据网关获取所述隧道的连接状 态, 并根据所述连接状态确定緩存下行数据, 并緩存下行数据。
10、 根据权利要求 8所述的方法, 其特征在于, 所述触发寻呼指示信息为 所述下行数据中的至少一个数据包或携带丟弃指示信息的空包或下行数据通 知。
11、 根据权利要求 1 所述的方法, 其特征在于, 当所述数据网关、 家庭基 站网关和所述接入网集成在一起时 , 在所述建立接入网和数据网关之间的隧道 之后, 所述方法还包括:
所述家庭基站网关获取服务网关或服务通用分组无线业务 GPRS 支持节点 发送的携带核心网控制面地址的用于对所述隧道进行管理的管理消息, 将所述 管理消息中的核心网控制面地址转换为接入网控制面地址, 将替换控制面地址 后的管理消息发送到所述数据网关; 和 /或, 获取数据网关发送的携带接入网控 制面地址的用于对所述隧道进行管理的管理消息 , 将所述管理消息中的接入网 控制面地址转换为核心网控制面地址, 将替换控制面地址后的管理消息发送到 所述服务网关。
12、 一种移动网络用户面数据路由的装置, 其特征在于, 包括:
建立模块, 用于通过建立接入网和数据网关之间的隧道, 将终端的接入网 承载和数据网关承载直接对接;
路由模块, 用于通过所述建立模块建立的隧道将家庭基站、 家庭基站网关 或宏网 ^妻入网与数据网关之间的数据进行直接路由。
13、 根据权利要求 12所述的装置, 其特征在于, 还包括: 第一管理模块和 /或第二管理模块,
所述第一管理模块, 用于在所述装置部署于接入网时, 接收移动管理实体 MME或服务 GPRS支持节点 SGSN发送的管理消息,所述管理消息由服务网关 SGW发送给所述 MME或所述 SGSN, 所述管理消息携带所述数据网关的隧道 终点标识, 根据所述数据网关的隧道终点标识, 管理所述数据网关的隧道终点 标识对应的上行隧道; 或者, 接收携带终端标识的消息, 根据所述终端标识确 定所述终端标识对应的接入网承载唯一标识, 管理所述接入网承载唯一标识对 应的上行隧道;
所述第二管理模块, 用于在所述装置集成于数据网关时,接收 SGW发送的 管理消息, 所述管理消息由 MME或 SGSN发给 SGW, 所述管理消息携带接入 网的隧道终点标识, 根据所述接入网的隧道终点标识, 管理所述接入网的隧道 终点标识对应的下行隧道; 或者, 接收携带终端标识的消息, 根据所述终端标 识确定所述终端标识对应的核心网承载唯一标识 , 并管理所述所述核心网承载 唯一标识对应的下行隧道。
14、 根据权利要求 12所述的装置, 其特征在于, 还包括:
触发模块, 用于在所述建立模块建立所述隧道之前, 发送触发寻呼指示信 息, 所述触发寻呼指示信息指示有下行数据到达, 以使得 SGW或服务 GPRS支 持节点 SGSN根据所述触发寻呼指示信息向终端发送寻呼消息, 指示所述终端 建立所述接入网和数据网关之间的隧道。
15、 一种通信系统, 包括接入网和数据网关, 其特征在于,
通过建立所述接入网和数据网关之间的隧道, 将终端的接入网承载和数据 网关承载直接对接; 通过所述隧道将所述接入网与数据网关之间的数据进行直 接路由。
16、 根据权利要求 15所述的系统, 其特征在于, 所述系统还包括: 服务网关, 用于获取接入网卸载使能信息, 根据所述接入网卸载使能信息, 确定是否启用接入网卸载功能;
在上行隧道的管理过程中, 如果启用所述接入网卸载功能, 所述服务网关 向接入网发送携带数据网关的隧道终点标识的管理消息; 否则, 向接入网发送 携带数据网关的隧道终点标识的管理消息; 和 /或,
在下行隧道的管理过程中, 如果启用所述接入网卸载功能, 所述服务网关 向数据网关发送携带接入网的隧道终点标识的管理消息; 否则, 向数据网关发 送携带 SGW的隧道终点标识的管理消息。
17、 一种通信系统, 其特征在于, 所述系统包括集成于接入网的数据网关 和家庭基站网关, 所述家庭基站网关用于获取服务网关或服务通用分组无线业务 GPRS 支持 节点发送的携带核心网控制面地址的用于对所述隧道进行管理的管理消息 , 将 所述管理消息中的核心网控制面地址转换为接入网控制面地址, 将替换控制面 地址后的管理消息发送到所述数据网关; 和 /或, 获取所述数据网关发送的携带 接入网控制面地址的用于对所述隧道进行管理的管理消息, 将所述管理消息中 的接入网控制面地址转换为和核心网控制面地址, 将替换控制面地址后的管理 消息发送到 SGW。
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