WO2011057439A1 - Procédé, système et équipement d'établissement de délestage de trafic ip sélectionné - Google Patents

Procédé, système et équipement d'établissement de délestage de trafic ip sélectionné Download PDF

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Publication number
WO2011057439A1
WO2011057439A1 PCT/CN2009/074882 CN2009074882W WO2011057439A1 WO 2011057439 A1 WO2011057439 A1 WO 2011057439A1 CN 2009074882 W CN2009074882 W CN 2009074882W WO 2011057439 A1 WO2011057439 A1 WO 2011057439A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
sipto
network element
access network
user
Prior art date
Application number
PCT/CN2009/074882
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English (en)
Chinese (zh)
Inventor
张艳平
胡伟华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN200980118716.9A priority Critical patent/CN102804902B/zh
Priority to PCT/CN2009/074882 priority patent/WO2011057439A1/fr
Publication of WO2011057439A1 publication Critical patent/WO2011057439A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, system and apparatus for establishing selective IP data stream grooming.
  • the home access mode means that the user equipment uses the home wireless access point to use the licensed spectrum to access the carrier network through the Internet Protocol (IP) access network.
  • IP Internet Protocol
  • the service flow of the user equipment can be directly connected to the Internet after being accessed through the air interface of the 3G home base station.
  • the service flow of the user equipment directly accesses the Internet after passing through the 3G home base station gateway, which is referred to as the home base station gateway out of the Internet interface.
  • the above two methods can make the service traffic of the user equipment not pass through the GGSN (Gateway GPRS Supporting Node) of the core network, thereby saving the transmission of the operator and the user resources of the core network.
  • the way the network is called SIPTO (Select IP Traffic Offload).
  • the GGSN corresponds to the S-GW (Serving Gateway)/P-GW (Packet Data Network Gateway) in the evolved network
  • the 3G home base station corresponds to the family evolution in the evolved network.
  • the P-GW functional entity may be stored in a home access network element HeNB (Home evolved NodeB) or HNB (Home odeB, 3G home base station), and the P-GW functional entity may also be stored in the home.
  • HeNB GW Home evolved NodeB Gateway
  • HNB GW Home odeB Gateway, 3G home base station gateway
  • the P-GW functional entity may also be an independent physical device and a home access network element. Or the home access gateway is separated.
  • the S-GW function entity that serves the local PDN connection can be stored on the home access network element or the home access gateway, or can be stored in the carrier network separately.
  • the SIPTO radio bearer of the user equipment exists, and the uplink data of the user equipment is sent to the P-GW and then sent to the PDN (Packet Data Network) through the access network element, and the downlink data of the user equipment passes.
  • the PDN is sent to the P-GW and sent to the user equipment via the access network element, whether it is uplink data or downlink data.
  • the SIPTO radio bearer of the user equipment does not exist, and the downlink data packet of the user equipment is transmitted from the P-GW to the S-GW located at the CN (Core network; The S-GW triggers the mobility management entity to page the user equipment.
  • the S-GW When the paging to the user equipment is switched to the connected state, the S-GW sends the buffered data packet to the user equipment via the access network element, because the user equipment is already at the time. In the connected state, the upstream and downstream data packet paths of the user equipment are no longer passed through the S-GW as described above.
  • the access network element releases the radio bearer of the user equipment, if the P-GW and the access network element are separated (the reason for the separation may be that the network access is deployed.
  • the network element and the P-GW are separated, and the P-GW and the access network element are separated due to the user equipment movement.
  • the P-GW cannot obtain the current state of the user equipment, and still sends a data packet to the access network element, resulting in a data packet. Not sent to the user device. Summary of the invention
  • the embodiment of the present invention provides a method, a system, and a device for establishing a selective IP data stream grooming.
  • the technical solution is as follows:
  • the embodiment of the present invention provides a method for establishing a selected IP data stream to sift SIPTO, the method includes: determining, when the packet data gateway P-GW and the access network element are separated, and the user equipment is in an idle state, determining the user equipment Whether there is a SIPTO connection;
  • the user plane information allocated by the serving gateway S-GW to the user equipment is sent to the P-GW, so that the P-GW saves the user plane information.
  • the embodiment of the present invention further provides a method for supporting the establishment of a selected IP data stream to sift SIPTO.
  • the method includes: receiving an access request message of a user equipment;
  • the S-GW supports SIPTO mobility, a radio bearer is established for the user equipment.
  • the embodiment of the present invention further provides a network system, where the system includes: a service gateway and a packet data gateway, where the serving gateway is used to separate the packet data gateway P-GW from the access network element and the user equipment becomes idle. Determining whether the user equipment has a SIPTO connection, and if the SIPTO connection exists, transmitting user plane information allocated by the serving gateway S-GW to the user equipment to the P-GW;
  • the packet data gateway is configured to receive user plane information that is sent by the serving gateway and allocated to the user equipment, and save user plane information that is allocated by the serving gateway S-GW to the user equipment.
  • the embodiment of the invention further provides a network system, where the system includes: a mobility management entity and an access network element,
  • the mobility management entity is configured to receive an access request message of the user equipment, determine whether the access network element of the user equipment changes, and if the access network element changes, determine whether the serving gateway S-GW supports SIPTO mobile Capability; if the S-GW supports SIPTO mobility, establishing a radio bearer for the user equipment;
  • the access network element is configured to: when the packet data gateway P-GW and the access network element are separated, and the user equipment is switched to the connected state or the user equipment moves, forwarding the access request of the user equipment to the mobility management entity Message.
  • the embodiment of the invention further provides a network device, where the device includes:
  • a first determining module when the packet data gateway P-GW and the access network element are separated and the user equipment is in an idle state, determining whether the user equipment has a SIPTO connection;
  • a first sending module configured to: when the first determining module determines that the user equipment has a SIPTO connection, send user plane information allocated by the serving gateway S-GW to the user equipment to the P-GW, so that the P-GW saves the user's interest
  • the embodiment of the invention further provides a network device, where the device includes:
  • a second receiving module configured to: when the packet data gateway P-GW and the access network element are separated, and the user equipment is switched to the connected state or the user equipment moves, receiving the access request message of the user equipment;
  • a second determining module configured to determine whether the access network element of the user equipment changes, and if the access network element changes, determine whether the serving gateway S-GW supports the SIPTO mobile capability
  • a radio bearer establishing module configured to establish a radio bearer for the user equipment when the second determining module determines that the S-GW supports SIPTO mobility.
  • the serving gateway determines that the user equipment allocates the user plane to the user equipment when the SIPTO connection exists.
  • the information is sent to the packet data gateway, and the packet data gateway saves the user plane information, so that the packet data gateway forwards the data to the service gateway, thereby preventing the packet data gateway from transmitting data to the user equipment, thereby causing loss of data information.
  • FIG. 1 is a structural diagram of a home access system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for establishing a SIPTO according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of another method for establishing a SIPTO according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic flowchart of establishing a SIPTO connection according to Embodiment 2 of the present invention.
  • Embodiment 2 of the present invention is a schematic flow chart of a method provided by Embodiment 2 of the present invention.
  • FIG. 6 is a schematic flow chart of a method provided by Embodiment 3 of the present invention.
  • FIG. 7 is a schematic structural diagram of a network system according to Embodiment 4 of the present invention.
  • 8 is a schematic structural diagram of another network system according to Embodiment 4 of the present invention.
  • FIG. 9 is a schematic structural diagram of a network device according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic structural diagram of another network device according to Embodiment 5 of the present invention. detailed description
  • FIG. 1 is a schematic diagram of a home access system architecture according to an embodiment of the present invention.
  • a 3G home base station (Home NodeB, HNB) is a home wireless access point operating in the UMRAN (UMTS Territorial Radio Access Network) spectrum
  • Home evolved NodeB , HeNB is a home wireless access point operating in the E-UTRAN (Evolved UMTS Territorial Radio Access Network) spectrum
  • Home non-3GPP Wireless Access Point Home non-3GPP Wireless Access Point , Home non-3 GPP WAP
  • non-3GPP networks such as CDMA (Code Division Multiple Addressing), Wimax ( Worldwide Interoperability for Microwave Access, Worldwide Interoperability for Microwave Access), WLAN (Wireless Local Area) Home wireless access point for network spectrum such as Access, WLAN access, HRPD (High Rate Packet Data).
  • CDMA Code Division Multiple Addressing
  • Wimax Worldwide Interoperability for Microwave Access, Worldwide Interoperability for Microwave Access
  • WLAN Wireless Local Area
  • network spectrum such as Access, WLAN
  • the 3G Home Base Station Gateway (HB GW), the Home Evolved Base Station Gateway (HeNB GW), and the Home Non-3 GPP WAP GW are respectively through the universal IP access network, and the HNB, HeNB, and Home non-3 GPP WAP connected home network access point gateway network element.
  • the gateway network element of the home wireless access point is configured to perform management and access control of the home wireless access point, collect the home wireless access point, and route and forward the letter between the home wireless access point and the network element in the mobile network. Make data and other functions.
  • the network elements in the mobile network include: MME (Mobility Management Entity, mobility management entity) in E-UTRAN, SGSN (Serving GPRS Supporting Node in GPRS/UMTS), GPRS/UMTS GGSN (Gateway GPRS Supporting Node), the serving gateway S-GW in the evolved core network, the packet data gateway P-GW in the evolved core network, and the non-3GPP including multiple implementation entities in the non-3GPP network Gateway (non-3GPP GW), for example, EPDG (Evolved Packet Data Gateway) in WLAN network, ASN GW (Access Service Network Gateway) in Wimax, AGW in CDMA network (Access Gateway, access gateway) and HS-GW (HRPD Serving Gateway) in the HRPD network.
  • MME Mobility Management Entity, mobility management entity
  • SGSN Server GPRS Supporting Node in GPRS/UMTS
  • GPRS/UMTS GGSN Gateway GPRS Supporting Node
  • HSS Home Subscriber Server
  • HSS Home Subscriber Server
  • AAA Server Authentication Authorization and Accounting Server, Authentication, Authorization, and Accounting Server Used to perform access authentication, authorization, and accounting functions for the UE.
  • the home base station may include a 3G Home NodeB (HNB), or a Home evolved NodeB (HeNB), or the like;
  • HNB 3G Home NodeB
  • HeNB Home evolved NodeB
  • the home base station gateway may include a 3G home base station gateway HNB GW, or a home evolved base station gateway HeNB GW, etc.; the user plane gateway may include a GGSN, an S-GW, or a P-GW;
  • the mobility management entity may include an SGSN or an MME, etc.;
  • the access network element may include a home base station, a home base station gateway, and an RNC eNodeB and the like.
  • Embodiment 1 The technical solutions provided by the present invention are described in detail below through the following various embodiments, and the specific contents are as follows: Embodiment 1
  • an embodiment of the present invention provides a method for establishing a selected IP data stream to sift SIPTO, and the method includes:
  • the method before the packet data gateway P-GW and the access network element are separated and the user equipment is turned into the idle state, the method further includes:
  • establishing a SIPTO connection for the user equipment includes: transmitting user plane information allocated by the packet data gateway to the user to the access network element; and configuring the access network element as a user allocated by the user The face information is sent to the packet data gateway.
  • an embodiment of the present invention when the access network element and the packet gateway are separated and the user equipment is in an idle state, the packet gateway forwards the data information sent to the user equipment to the service network gateway, and pages the user equipment through the service gateway. Then, the data is forwarded to the user equipment, and the packet data gateway is prevented from directly forwarding the data to the user equipment, which causes the loss of data information to affect the user experience.
  • an embodiment of the present invention further provides a method for establishing a selected IP data stream to sift SIPTO, wherein when the packet data gateway P-GW and the access network element are separated, the user equipment is switched to a connected state or a user.
  • the methods include: 201: Receive an access request message of the user equipment.
  • the method further includes: before receiving the access request message of the user equipment, the method further includes:
  • establishing a SIPTO connection for the user equipment includes:
  • the mobility management network element determines the access network element to send the change, and the service
  • the gateway supports SIPTO mobile, it establishes a SIPTO connection for the user equipment, ensuring that the user equipment can continue to use SIPTO for data transmission when accessing the new access network element.
  • an embodiment of the present invention provides a method for establishing a selective IP data stream to groom SIPTO.
  • Steps 1 to 12 are the processes of the SIPTO connection of the user in the embodiment of the present invention, wherein the SIPTO connection may be a SIPTO PDN connection, and referring to FIG. 4, the method includes:
  • the user equipment sends a PDN connection establishment request message to the mobility management entity by using the access network element, where the message includes an APN (Access Point Name); the access network element transmits the PDN connection establishment request message to the mobility.
  • the management entity may include capability information of whether the access network element supports SIPTO.
  • the access network element in the embodiment of the present invention includes a home base station and a home base station gateway, and the user equipment sends a PDN connection establishment request message to the mobility management entity through the home base station and the home base station gateway, respectively, and the home base station or the home base station
  • the gateway may pass the PDN connection establishment request message to the mobility management entity, and may include the capability information of whether the access network element supports SIPTO, where the access network element supports the SIPTO capability information, and may also pass the S1 when the access network element starts working. Establish a signaling process to notify the mobility management entity, or configure it on the mobility management entity.
  • the PDN connection establishment request message is used to request to establish a PDN connection.
  • the UE may use the PDN connection to send data to the PDN network through the P-GW on the HeNB or the HeNB GW, and the UE may also establish the PDN connection.
  • Multiple Proprietary Bearers are used for SIPTO services, and one PDN connection can correspond to multiple bearers.
  • the user equipment may also send a PDP activation request message to the mobility management entity to activate an established PDN bearer, and the PDN bearer may also be used for the SIPTO bearer, which is referred to as a SIPTO bearer.
  • the type of the information is not limited in the embodiment of the present invention.
  • the mobility management entity in the embodiment of the present invention may be an SGSN or an MME (Mobility Management Entity) D.
  • the mobility management entity determines, according to the capability information of the SIPTO supported by the access NE and the capability information of the SIP-supported by the S-GW, that the PDN connection can use the SIPTO mode, and sends a create session request message to the S-GW, where the session request is created.
  • the message includes SIPTO indication information.
  • the mobility management network element determines that the access network element supports SIPTO and the S-GW also supports SIPTO, it is determined that the PDN connection can be used for SIPTO.
  • the PDN connection can adopt the SIPTO mode according to the capability information of the access network element supporting the SIPTO, the capability information of the S-GW supporting the SIPTO, and the subscription data of the user.
  • the mobility management network element determines that the access network element supports SIPTO and the S-GW also supports SIPTO, and the user's subscription data also allows SIPTO to be used, it is determined that the PDN connection can be used for SIPTO.
  • the capability information of the S-GW supporting the SIPTO can be obtained through the configuration of the operator, or obtained through the signaling interaction process with the S-GW. For details, refer to step 303.
  • User subscription data which may be obtained from the HSS in advance and stored in the mobility management entity;
  • the mobility management entity determines that the PDN connection may send a create session request message to the S-GW in a SIPTO manner; the mobility management entity may include SIPTO indication information in the create session request message, where the SIPTO indication information is used to indicate the S-GW
  • the PDN connection is used to transport the SIPTO data stream, ie the PDN connection is a SIPTO PDN. If the PDN connection cannot be SIPTO, the process ends.
  • the SIPTO indication information may be an APN granularity, SP ⁇ APN, SIPTO indication ⁇ , for example, indicating that the bearer corresponding to an APN is a SIPTO bearer, or may be a bearer ID (SIPTO indication), such as an indication.
  • a specific bearer is an APN bearer;
  • the manner in which the SIPTO indication information is indicated may be:
  • the PDN connection is identified as a SIPTO PDN, and if the SIPTO indication cell is not included in the Create Session Request message, the PDN is identified.
  • the connection is not a SIPTO PDN, and vice versa;
  • the indication may be in the form of a cell in the creation session request message, and different values of the cells indicate different meanings, for example, 1 is identified as a SIPTO PDN or a bearer, and other values are used, for example, the 0 identifier is not a SIPTO PDN. Or bear;
  • the indication may also be in a specific location in the message arrangement.
  • the mobility management entity sends the PDN connection information to the S-GW (including APN and other information), SIPTO PDN or The bearer is placed at a specific location (such as the first or last digit, etc.).
  • S-GW reads the PDN or bearer information of a specific location, it is known as a SIPT0 bearer or a PDN connection;
  • the indication manner may also be the value of carrying an attribute.
  • the present invention takes ARP (Allocation and Retention Priority) as an example.
  • ARP Address and Retention Priority
  • the bearer is a SIPT0 bearer, and the PDN to which the bearer belongs is a SIPTO PDN.
  • the embodiment of the present invention does not limit the manner in which the SIPT0 indication information is specifically used, and may be flexibly selected according to actual conditions.
  • the S-GW obtains which PDN connections are SIPTO PDNs by using the SIPT0 indication information in the Create Session Request message sent by the mobility management entity, and the S-GW obtains which PDN connections are obtained.
  • the manner of the SIPTO PDN is not limited to the manner described in this embodiment.
  • the SIPTO indication information may also be transmitted in other steps or messages exchanged by other mobility management entities and S-GWs, including but not limited to: RAU (Routing Area Update) or TAU (Tracking Area Update)
  • RAU Radio Exposure
  • TAU Tracking Area Update
  • the session information is sent by the mobility management entity to the S-GW, or the service request message sent by the mobility management entity to the S-GW, or the modified bearer sent by the mobility management entity to the S-GW.
  • the S-GW interacts with the P-GW to create session information.
  • the S-GW After receiving the create session request message sent by the mobility management entity, the S-GW learns that the connection is a SIPTO-based connection according to the SIPTO indication information in the create session request message, and sends the session request message to the packet data gateway. And allocating user plane information to the user equipment, and transmitting the allocated user plane information to the packet data gateway; after receiving the session request message, the packet data gateway knows that the connection is a SIPTO connection, and assigns user plane information to the user equipment. And send this information to the mobility management entity through the service gateway.
  • the S-GW returns a create session response message to the mobility management entity, where the session response message may include user plane information allocated by the P-GW for the user equipment, and may also include user plane information allocated by the S-GW for the user equipment. It may also include and the S-GW support SIPTO indication information and indication information supporting SIPTO mobility.
  • the session response message includes user plane information allocated by the S-GW for the user equipment and user plane information allocated by the P-GW to the user equipment.
  • the Create Session Response message also includes the S-GW support SIPTO flag (Support SIPTO flag), the S-GW supports SIPTO mobility indication (Support SIPTO Mobility flag) or a combination of two indications.
  • the way of the support SIPTO flag or the support SIPTO Mobility flag is similar.
  • S-GW has the ability to support SIPTO by the presence or absence of the cell, such as the presence of Support SIPTO.
  • the flag identifier supports SIPTO. If there is no identifier, it is not supported. Otherwise, it can be used.
  • the different values of the cells indicate different meanings, and determine whether the S-GW has the capability of supporting SIPTO according to the value of the cell, and still take the Support SIPTO flag as an example.
  • the value 1 indicates that SIPTO is supported, and the value 0 indicates that SIPTO is not supported.
  • the capability of the S-GW to support the SIPTO in the embodiment of the present invention includes whether the S-GW can allocate the access network element (the home base station and/or the home base station gateway) when the access network element and the P-GW are separated from each other.
  • the user plane information is sent to the P-GW and the user plane information that can be allocated by the P-GW to the user equipment is sent to the access network element.
  • the service gateway allocate the user plane information to the user equipment.
  • the user plane information is sent to the P-GW.
  • the capability of the S-GW to support the SIPTO mobility includes: determining the user when the access network element of the serving UE changes (possibly because the access network element changes due to the movement of the UE or the access network element changes due to other reasons) Whether the device has a SIPTO PDN connection. If there is a SIPTO PDN connection, it is determined whether the S-GW also supports SIPTO mobility. If SIPTO mobility is supported, the S-GW sends the user plane information allocated by the access network element to the P-GW.
  • the mobility management entity acquires the capability of the S-GW to support SIPTO and the capability of the S-GW to support SIPTO mobility, and is not limited to the process of establishing a SIPTO PDN or activating a SIPTO PDP context.
  • the mobility management entity's ability to acquire the S-GW may also be other signaling processes, such as obtaining a non-SIPTO PDN through the Create Session Response.
  • the mobility management entity may also obtain the capability attribute of the S-GW when querying the DNS to obtain the S-GW information.
  • the parameter returned by the DNS includes whether the S-GW supports the SIPTO, whether the SIPTO mobility is supported, or a combination of the two. limit.
  • the mobility management entity sends a radio bearer setup message to the access network element, where the radio bearer setup message includes the SIPTO indication information and the uplink user plane information allocated by the P-GW to the user equipment.
  • the radio bearer setup message further includes uplink user plane information allocated by the P-GW to the user equipment.
  • the HNB or the He B After the access network element receives the radio bearer setup message, according to the SIPTO indication information, for the SIPTO bearer, the HNB or the He B provides a local IP address, which is used for communication with the local network element, for the non-SIPTO bearer, the HNB or the HeNB Provide an IP address for the interactive use of the 3GPP core network element.
  • the access network element sends a radio bearer setup request message to the user equipment.
  • the user equipment establishes a completion message to the access network element radio bearer, and completes establishment of the radio bearer.
  • the access network element sends a radio bearer setup complete message to the mobility management entity.
  • the radio bearer setup complete message may include user plane information allocated by the access network element for the user equipment, where the user plane information may include an access network.
  • the element is the IP address and TEID assigned to the bearer of the user equipment.
  • the mobility management entity sends a bearer modification request message to the S-GW, where the message includes user plane information allocated by the access network element to the user equipment.
  • the mobility management entity After receiving the radio bearer setup complete message sent by the access network element, the mobility management entity sends a bearer modification request message to the S-GW, where the message includes the user plane information and the SIPTO indication information allocated by the access network element for the user equipment. .
  • the SIPTO indication information For the representation of the SIPTO indication information, refer to the description of step 302;
  • the S-GW sends a bearer update request message to the P-GW, where the bearer update request message includes the user plane information allocated by the access network element for the user equipment, and the message may include only the user plane information corresponding to the SIPTO bearer, and may include The user plane information corresponding to the non-SIPTO bearer is not limited in the embodiment of the present invention.
  • the S-GW After receiving the bearer modification request message sent by the mobility management entity, the S-GW learns that the user equipment has a SIPTO PDN connection according to the SIPTO indication information in the message or the previously preset indication information, and the access network in the message
  • the user plane information that is allocated to the user equipment is sent by the P-GW in the bearer update request message, and is used to notify the P-GW to update the downlink user plane information of the SIPTO PDN to the user plane information allocated by the access network element to the user equipment.
  • the bearer modification request message received by the S-GW does not include the SIPTO indication information, it is determined that the user equipment does not have a SIPTO PDN or a SIPTO bearer, and the S-GW does not send a bearer update request message to the P-GW.
  • the P-GW After receiving the bearer update request message, the P-GW saves the user plane information allocated by the access network element to the user equipment, and sends a bearer update response message to the S-GW.
  • the S-GW sends a bearer modification response message to the mobility management entity.
  • the mobility management entity sends a PDN connection setup success message to the user equipment.
  • the SIPTO PDN establishment process of the user equipment is completed, and the PDN connection can be used for SIPTO data transmission.
  • the S-GW updates the downlink user plane information of the P-GW to the downlink user plane information that the S-GW allocates for the user equipment, including:
  • the access network element sends a user S1 context release request to the mobility management entity.
  • the user S1 connection release process may not be based on the step, but is initiated by the mobility management entity, and the step is not required, and step 402 is directly executed;
  • the mobility management entity sends a release access bearer request message to the S-GW to notify the S-GW of the access bearer release.
  • the mobility management entity sends the release access bearer request message to the S-GW, which may include the user S.
  • the S-GW After the S-GW receives the release access bearer request message sent by the mobility management entity, the S-GW can determine that the user equipment is in an idle state according to the identifier of the user S1 included in the release access bearer request message.
  • the S-GW sends a release access bearer response message to the mobility management entity.
  • the mobility management entity sends a user context release command to the access network element.
  • the mobility management entity may record information about the current access network element, including information such as an ID and an IP address, and the information. Presetting on the mobility management entity, after the user equipment is switched to the connected state, comparing the access network element information accessed by the user equipment with the information of the access network element to determine whether the access network element of the service user equipment changes .
  • the access network element sends a user context release complete message to the mobility management entity.
  • the S-GW determines that the user equipment has a SIPTO connection, and sends a bearer modification request message to the P-GW, where the bearer modification request message includes user plane information allocated by the S-GW to the user equipment.
  • the S-GW can save the correspondence between the identifier of the user equipment and the corresponding SIPTO connection, that is, according to the identifier of the user equipment, it can be determined whether the user equipment has a SIPTO connection.
  • the SIPTO connection may include a SIPTO PDN connection or include a SIPTO bearer.
  • Step 406 is also triggered by step 402, so the execution of step 403 and step 406 may be in no order.
  • the P-GW sends a bearer modification response message to the S-GW.
  • the P-GW receives the S-GW sending a bearer modification request message, and saves the user plane information included in the message.
  • the P-GW updates the downlink user plane information of the data packet to the user plane information allocated by the S-GW, and the user equipment related data packet arrives at the P-GW.
  • the P-GW may send the data packet to the S-GW according to the user plane information allocated by the S-GW, and the S-GW triggers the mobility management entity to page the user equipment, and sends the data packet to the user equipment after paging.
  • User equipment User equipment.
  • the user equipment idle state refers to the S1 connection or the Iu connection related to the user equipment
  • the serving gateway refers to the release access bearer request message sent by the mobility management entity, that is, the user.
  • the access bearer of the device does not exist.
  • the user equipment is in an idle state.
  • the user equipment connection state refers to the S1 connection or the Iu connection related to the user equipment, and refers to the bearer modification message sent by the mobility management entity to the serving gateway, where the message includes the user plane message allocated by the access network element to the user, that is, The access bearer of the user equipment exists to identify that the user equipment is in a connected state;
  • the P-GW updates the downlink user plane information of the data packet to the user plane information allocated by the S-GW, so that when the user equipment related data packet arrives at the P -GW, the P-GW may send the data packet to the S-GW according to the user plane information allocated by the S-GW, and the S-GW triggers the mobility management entity to page the user equipment, and after paging to the user equipment, the data packet is sent.
  • the device is sent to the user equipment to ensure that the service of the user equipment can be performed normally, and the problem that the idle user equipment data packet cannot reach the user equipment is solved.
  • the embodiment of the invention provides a method for supporting the selection of the IP data stream to facilitate the movement of the SIPTO.
  • the method includes:
  • the user equipment sends an access request message to the mobility management entity, where the access request message may be a service request Service Requests tracking area update request TAU Request or a routing area update request RAU Request; after the mobility management entity receives the message,
  • the access network information may be the identifier of the access network element or the access network element, according to the access network element information currently accessed by the user equipment and the access network element information when the user equipment is previously switched to the idle state. IP address, determining whether the access network element of the service user equipment changes;
  • the user equipment When the user equipment changes from the idle state to the connected state, the user equipment sends a service request message to the mobility management entity, where the service request message includes the user identifier.
  • the access network element information currently accessed by the user equipment includes an access network element identifier (ID), or an IP address of the access network element, and the access network element information may be preset on the mobility management entity, when the user When the device is connected to the mobility management entity by using the access network element, the mobility management entity knows the access network element information and the like that the user equipment currently accesses according to the underlying data of the protocol stack.
  • ID access network element identifier
  • the mobility management entity For the method for accessing the network element information when the user equipment saved by the mobility management entity is switched to the idle state, refer to step 2 of the embodiment 2, 404, the mobility management entity records the information of the access network element at the time when the state is changed to the idle state;
  • the mobility management entity compares the access network element information currently accessed by the user equipment and the access network element information when the user equipment is previously in the idle state, such as whether the current access network element ID of the user equipment is converted to the user equipment.
  • the access network element ID in the idle state is the same or the current IP address of the user equipment is the same as the IP address when the user equipment is in the idle state.
  • the access network element of the service user equipment is changed.
  • the method for determining whether the access network element of the user equipment changes by the mobility management network element is also referred to the description in step 501.
  • the mobility management entity determines whether the S-GW supports the SIPTO mobility. If the S-GW supports SIPTO mobility, the mobility management entity establishes a SIPTO radio bearer for the user equipment. And sending a bearer setup request message to the access network element, where the bearer setup request message includes user plane information allocated by the P-GW to the user.
  • the S-GW determines the capability of the S-GW to support the SIPTO mobility. (For the S-GW to support the SIPTO mobility, refer to steps 303-304 of Embodiment 2) Whether the S-GW of the serving user equipment supports SIPTO mobility, if the S-GW not support
  • the SIPTO mobile the mobility management entity does not establish a SIPTO radio bearer for the user equipment; if the S-GW supports SIPTO mobility, the mobility management entity establishes a SIPTO radio bearer for the user equipment, and sends a radio bearer setup request message to the access network element, the bearer
  • the establishment request message includes user plane information allocated by the P-GW to the user; the user plane allocated by the P-GW to the user The information is allocated to the user by the P-GW during the establishment of the SIPTO PDN connection and is stored on the mobility management entity.
  • the mobility management entity sends a bearer setup request message to the access network element to establish a SIPTO radio bearer of the user equipment, where the bearer setup request message includes the P-GW allocated for the user.
  • the bearer setup request message includes the P-GW allocated for the user.
  • User plane information where the user plane information allocated by the P-GW to the user is in the process of establishing a SIPTO PDN connection.
  • the P-GW is assigned to the user and stored on the mobility management entity.
  • the mobility management entity may also initiate a bearer deletion procedure to delete the user equipment SIPTO bearer.
  • the user equipment has a SIPTO connection by default. 503: After receiving the bearer setup request message, the access network element establishes a radio bearer for the user equipment, and saves the user plane information allocated by the P-GW included in the message to the user, where the user plane information may include the P-GW as the user equipment.
  • the bearer allocates the IP address and the TEID, and after the access network element establishes the radio bearer for the user equipment, sends a bearer setup response message to the mobility management entity;
  • the mobility management entity After receiving the bearer setup response message, the mobility management entity sends a bearer modification request message to the S-GW, where the message may include SIPTO indication information, where the indication information may indicate that the service gateway connects to the SIPTO.
  • the message includes the user plane information that the access network element allocates to the user.
  • the message may include only the user plane information corresponding to the SIPTO bearer, and may include the user plane information corresponding to the non-SIPTO bearer.
  • the S-GW After receiving the bearer modification request message, the S-GW sends a bearer modification request message to the P-GW.
  • the indication information may be included in step 504, or may be sent to the serving gateway when the SIPTO PDN connection is created, please refer to steps 301-302.
  • the user equipment has a SIPTO PDN connection or a SIPTO bearer.
  • the S-GW sends a bearer modification request message to the P-GW, where the message includes the user plane information allocated by the access network element for the user.
  • the S-GW may also include the S-GW as the SIPTO bearer.
  • the user plane information is allocated; if the user equipment does not have a SIPTO PDN or a SIPTO bearer, the S-GW sends a bearer setup request message to the P-GW to establish a SIPTO PDN or a SIPTO bearer for the user equipment.
  • the S-GW sends a bearer setup request message to the P-GW to establish a SIPTO PDN or a SIPTO bearer for the user equipment.
  • For the S-GW to obtain the SIPTO PDN or the bearer method refer to steps 303 to 304 for establishing a SIPTO PDN connection.
  • the P-GW After receiving the bearer modification request message, the P-GW saves the user plane information allocated by the access network element for the user SIPTO bearer, and returns a bearer modification response message to the S-GW; the S-GW returns the bearer modification to the mobility management entity. Response message.
  • the mobility management entity when the user equipment is changed from the idle state to the connected state, the mobility management entity according to the access network element information currently accessed by the user equipment and the access network element when the user equipment is previously switched to the idle state The information determines whether the access network element moves. If the access network element moves, the mobility management entity determines whether the S-GW supports the SIPTO mobile capability. If the SIPTO mobile is supported, the SIPTO connection is established for the user equipment, and the connection is guaranteed. Incoming network element changes When the user equipment is used, the user equipment can also use the SIPTO method for data transmission.
  • the embodiment of the invention provides a network system.
  • the system includes: a service gateway 601 and a packet data gateway 602.
  • the service gateway 601 is configured to determine, if the packet data gateway 602 and the access network element are separated, that the user equipment is in an idle state, determine whether the user equipment has a SIPTO connection, and if there is a SIPTO connection, the serving gateway 601 allocates the user to the user equipment.
  • the face information is sent to the packet data gateway 602;
  • the packet data gateway 602 is configured to receive user plane information allocated by the serving gateway 601 for the user equipment, and save the user plane information allocated by the service gateway 601 for the user equipment.
  • the serving gateway 601 is further configured to: when the access network element and the serving gateway support the SIPTO, send the user plane information allocated by the packet data gateway 602 to the user to the access network. And sending the user plane information allocated by the access network element to the user to the packet data gateway 602.
  • an embodiment of the present invention further provides a network system, where the system includes: a mobility management entity 701 and an access network element 702.
  • the mobility management entity 701 is configured to receive an access request message of the user equipment, determine whether the access network element 702 of the user equipment changes, and if the access network element 702 changes, determine whether the serving gateway S-GW supports SIPTO mobile. Capability; if the S-GW supports SIPTO mobility, establish a radio bearer for the user equipment;
  • the access network element 702 is configured to: when the packet data gateway P-GW and the access network element 702 are separated, and the user equipment transits to the connected state or the user equipment moves, forward the access request message of the user equipment to the mobility management entity 701. .
  • the mobility management entity 701 is further configured to determine that the SIPTO connection is established for the user when the access network element 702 supports SIPTO and the service gateway supports SIPTO.
  • the mobility management entity 701 is configured to send the user plane information allocated by the packet data gateway to the user to the access network element 702; and allocate the access network element 702 to the user.
  • User plane information is sent to the packet data gateway.
  • the mobility management network element determines that the access network element sends a change, and the service gateway supports the SIPTO mobile, and establishes a SIPTO connection for the user equipment, ensuring that the user equipment accesses through the new access network element. At the same time, you can continue to use SIPTO for data transfer.
  • the embodiment of the invention provides a network device.
  • the device includes:
  • the first determining module 801 is configured to determine, when the packet data gateway P-GW and the access network element are separated, that the user equipment is in an idle state, determine whether the user equipment has a SIPTO connection;
  • the first sending module 802 is configured to: when the first determining module 801 determines that the user equipment has a SIPTO connection, send the user plane information allocated by the serving gateway S-GW to the user equipment to the P-GW, so that the P-GW saves the user plane. information.
  • an embodiment of the present invention when the access network element and the packet gateway are separated and the user equipment is in an idle state, the packet gateway forwards the data information sent to the user equipment to the service network gateway, and pages the user to the user through the service gateway.
  • the device forwards the data to the user equipment, and prevents the packet data gateway from directly forwarding the data to the user equipment. As a result, the loss of data information affects the user experience.
  • an embodiment of the present invention further provides a network device, where the device includes:
  • the second receiving module 901 is configured to: when the packet data gateway P-GW and the access network element are separated, and the user equipment is switched to the connected state or the user equipment moves, receiving the access request message of the user equipment;
  • the second determining module 902 is configured to determine whether the access network element of the user equipment changes. If the access network element changes, determine whether the serving gateway S-GW supports the SIPTO mobile capability:
  • the radio bearer establishing module 903 is configured to establish a radio bearer for the user equipment when the second determining module 902 determines that the S-GW supports the SIPTO mobile.
  • the network device when the packet data gateway P-GW and the access network element are separated, and the user equipment is switched to the connected state or the user equipment moves, the mobility management network element determines that the access network element sends the change, and When the service gateway supports SIPTO mobile, it establishes a SIPTO connection for the user equipment, ensuring that the user equipment can continue to use SIPTO for data transmission when accessing the new access network element.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which is stored in a storage medium, including a plurality of instructions.
  • the method described in various embodiments of the present invention is performed to enable a mobile device (which may be a cell phone, a personal computer, a media player, etc.).
  • the storage medium referred to herein is, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

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

Abstract

Les modes de réalisation de la présente invention portent sur un procédé, un système et un équipement d'établissement de délestage de trafic IP sélectionné (SIPTO), le procédé comprenant les opérations suivantes : lorsque la passerelle de données par paquets (P-GW) a été détachée de l'élément de réseau (NE) d'accès et l'équipement utilisateur (UE) a basculé dans l'état de repos, détermination du fait qu'une connexion SIPTO existe ou non sur l'UE; et si une connexion SIPTO existe, envoi des informations de plan utilisateur qui sont allouées pour l'UE par la passerelle de desserte (S-GW) à la P-GW, ce qui amène la P-GW à stocker les informations de plan utilisateur.
PCT/CN2009/074882 2009-11-10 2009-11-10 Procédé, système et équipement d'établissement de délestage de trafic ip sélectionné WO2011057439A1 (fr)

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CN200980118716.9A CN102804902B (zh) 2009-11-10 2009-11-10 一种建立选择ip数据流疏导的方法、系统和设备
PCT/CN2009/074882 WO2011057439A1 (fr) 2009-11-10 2009-11-10 Procédé, système et équipement d'établissement de délestage de trafic ip sélectionné

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101136835A (zh) * 2007-09-30 2008-03-05 中兴通讯股份有限公司 一种空闲模式下承载建立方法
WO2008132163A1 (fr) * 2007-04-27 2008-11-06 Nokia Siemens Networks Oy Procédé, système radio et station de base

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132163A1 (fr) * 2007-04-27 2008-11-06 Nokia Siemens Networks Oy Procédé, système radio et station de base
CN101136835A (zh) * 2007-09-30 2008-03-05 中兴通讯股份有限公司 一种空闲模式下承载建立方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Local breakout concepts for Intra-PLMN", 3GPP TSG SA WG2, S2-071753, 27 April 2007 (2007-04-27) *

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