WO2011023125A1 - Procédé, dispositif et système pour libération de connexion - Google Patents

Procédé, dispositif et système pour libération de connexion Download PDF

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Publication number
WO2011023125A1
WO2011023125A1 PCT/CN2010/076397 CN2010076397W WO2011023125A1 WO 2011023125 A1 WO2011023125 A1 WO 2011023125A1 CN 2010076397 W CN2010076397 W CN 2010076397W WO 2011023125 A1 WO2011023125 A1 WO 2011023125A1
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WIPO (PCT)
Prior art keywords
sipto
pdn connection
user
network element
target
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Application number
PCT/CN2010/076397
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English (en)
Chinese (zh)
Inventor
胡伟华
张艳平
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华为技术有限公司
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Publication of WO2011023125A1 publication Critical patent/WO2011023125A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers

Definitions

  • BACKGROUND A femto cell is a low-power home wireless access service, which uses a licensed radio frequency connection standard wireless terminal through a home-type wireless access point, and utilizes a household DSL and cable broadband access method. Access to the mobile operator network.
  • the air interface bandwidth grows rapidly, and the core network user plane and transmission resources are facing the problem of bandwidth resources.
  • the network operator wants to subdivide the home wireless access service and directly part of the low-value service flow locally, that is, the local service flow accesses the internet as early as possible, avoiding occupying the carrier's transmission resources and gateway capacity', thereby reducing the cost per bit of bandwidth: profit.
  • the local 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. Interface; or the service flow of the UE directly accesses the Internet after passing through the 3G home base station, the backhaul network, and the 3G home base station gateway, and the home base station gateway is referred to as the Internet interface.
  • Both of the above methods can make the service flow of the UE not pass through the user plane gateway of the core network, that is, the Gateway GPRS Supporting Node (GGSN) in FIG. 1, thereby saving the transmission resource and the core network of the operator.
  • GGSN Gateway GPRS Supporting Node
  • SGS Serving GPRS Supporting Node
  • MME GGSN Serving gateway in the evolved network
  • P-GW Packet Data Network GW
  • HeNB Home eNodeB
  • the UE establishes a PDN connection, which is referred to as a SIPO PDN connection, for transmitting a SIPTO service flow by transmitting a Packet Data Network (PDN) connection establishment request to the MME.
  • PDN Packet Data Network
  • Embodiments of the present invention provide a method, apparatus, and system for releasing a connection, and providing a solution for releasing a SIPTO PDN connection in order to utilize network resources reasonably.
  • a method of releasing a connection comprising:
  • a message is sent to delete the SIPTO PDN connection to the user plane gateway.
  • a device for releasing a connection comprising:
  • a determining unit configured to determine, according to the access information of the user on the target side, whether to release the SIPTO PDN connection;
  • An execution unit configured to send and delete when the determining unit determines to release the SIPTO PDN connection
  • the STPTO PDN connects the message to the user plane gateway.
  • a method of releasing a connection comprising:
  • the mobility management network element of the service user changes, receiving a message from the source mobility management network element, where the message includes a first SIPTO indication cell for indicating a PDN connection or bearer;
  • a device for releasing a connection comprising:
  • a receiving unit configured to receive a message from a source mobility management network element, where the message includes a first SIPTO indication cell for indicating a PDN connection or bearer;
  • a first determining unit configured to determine, according to the first SIPTO indication cell in the message, whether there is a SIPTO PDN connection corresponding to the indication
  • a second determining unit configured to: when the first determining unit determines that there is a corresponding SIPTO PDN connection, determine whether to release the SIPTO PDN connection according to the access information of the user on the target side; and execute unit, configured to determine, by the second determining unit When the SIPTO PDN connection is released, the process of deleting the SIPTO PD connection is performed.
  • a system for releasing connections including:
  • the source side is configured to send, when the mobility management network element of the service user changes, a message including a first SIPTO indication cell for indicating a PDN connection or bearer to the target side;
  • a flag side for receiving the message and determining whether there is a corresponding SIPTO PD connection according to the indication of the first SIPTO indication cell in the message, and if it is determined that there is a corresponding SIPTO PDN connection, according to the user at the target Side access information determines whether to release the STPTO PDN connection; performs a process of deleting the SIPTO PDN connection if it is determined to release the STPTO PDN connection.
  • FIG. 1 is a schematic diagram of a SIPT0 of a 3G home access scenario in the background art
  • FIG. 2 is a schematic flowchart of a method for releasing a connection in Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of a method for releasing a connection in Embodiment 2 of the present invention.
  • FIG. 4 is a schematic flowchart of a method for releasing a connection in Embodiment 3 of the present invention.
  • FIG. 5 is a schematic flowchart of a method for releasing a connection in Embodiment 4 of the present invention.
  • FIG. 6 is a schematic flow chart of a method for releasing a connection in Embodiment 5 of the present invention.
  • Figure 7 is a schematic structural view of an apparatus for releasing a connection in Embodiment 6 of the present invention.
  • Figure 8 is a schematic structural view of an apparatus for releasing a connection in Embodiment 7 of the present invention.
  • Figure 9 is a schematic diagram of a system for translation and connection in Embodiment 8 of the present invention.
  • the access network element in all embodiments of the present invention may be:
  • UMTS Universal Mobile Telecommunication Standard
  • HeNB in the Telecommunication System Universal Mobile Telecommunications System
  • HeNB in the SAE System Architecture Evolved network
  • MTS Universal Mobile Telecommunication System
  • HNB GW Home Access Gateway
  • SAE System Architecture Evolved, System architecture evolution
  • Radio Network Controller in the UMTS network
  • PDN GW Packet Data Network Gateway
  • this embodiment provides a method for releasing a connection, which is suitable for deployment in a mobility management network element that provides services for a UE before a change occurs when a mobility management network element of a service is changed due to UE mobility.
  • the mobility management network element before the change is referred to as the source mobility management network element
  • the mobility management network element serving the UE after the change is the target mobility management network element.
  • Step 101 When the mobility management network element of the service user changes, determine whether to release the SIPTO PDN connection according to the access information of the user on the target side.
  • Step 102 If it is determined to release the SIPTO PDN connection, send a message to delete the SIPTO PDN connection to the user plane gateway.
  • the mobility management network element may be an MME or an SGSN.
  • the user plane gateway in this embodiment may be a GGSN, an S-GW, or P-GW.
  • This embodiment provides a method for releasing a SIPTO PDN connection.
  • the method solves the prior art, after the UE moves, by using a technical means for determining whether the SIPTO PDN connection needs to be released by the source mobility management network element.
  • the target mobility management network element serving the UE directly establishes a SIPTO PDN connection for the UE, which causes technical problems of wasting network resources, and further obtains a technical effect that the network resource can be reasonably utilized.
  • this embodiment provides a method for releasing a connection, which is suitable for deployment in a mobility management network element that provides services for a UE when a mobility management network element of a service is changed due to UE mobility. on.
  • the mobility management network element before the change is referred to as the source mobility management network element
  • the mobility management network element serving the UE after the change is the target mobility management network element.
  • Step 201 When the mobility management network element of the monthly service user changes, receiving a message from the source side, where the message includes a first SIPTO indication cell for indicating a PDN connection or bearer.
  • Step 202 Determine, according to the indication of the first SIPTO indication cell in the message, whether there is a SIPTO PDN connection corresponding to the indication.
  • Step 203 If it is determined that there is a corresponding SIPTO PDN connection, determine whether to release the SIPTO PDN connection according to the access information of the user on the target side.
  • Step 204 If it is determined to release the SIPTO PDN connection, perform a process of deleting the SIPTO PDN connection.
  • This embodiment provides a method for releasing a SIPTO PDN connection.
  • the method solves the problem of the target side service after the UE moves in the prior art by adopting a technical means for determining whether the SIPTO PDN connection needs to be performed on the target side.
  • the mobility management network element directly establishes a SIPTO PDN connection for the UE, which causes technical problems of wasting network resources, and further achieves the technical effect of rationally utilizing network resources.
  • Example 3 As shown in FIG. 4, this embodiment provides a method for releasing a connection, which mainly relies on a mobility management network that provides services for a UE before a change occurs when a mobility management network element of a service is changed due to mobility of a UE. yuan.
  • the mobility management network element before the change is referred to as the source mobility management network element
  • the mobility management network element that provides the UE for the change is the target mobility management network element.
  • the access network element serving the UE before the change is the source access network element
  • the access network element serving the UE after the change is the target access network element.
  • Step 301 The UE sends a tracking area update request to the target access network element, and after receiving the request, the target access network element sends the tracking area update request to the target mobility management network element.
  • the specific solution of the first step 301 is: the UE sends a tracking area update request to the target access network element, and after receiving the request, the target access network element may also connect the closed user user currently accessed by the UE (Closed Subscriber Group, The CSG) information and/or the capabilities of the target access network element supporting SIPTO are sent together to the standard mobility management network element.
  • the UE sends a tracking area update request to the target access network element, and after receiving the request, the target access network element may also connect the closed user user currently accessed by the UE (Closed Subscriber Group, The CSG) information and/or the capabilities of the target access network element supporting SIPTO are sent together to the standard mobility management network element.
  • CSG Closed Subscriber Group
  • the CSG information in the embodiment of the present invention includes at least one of the following: a CSG identifier ID cell, a CSG ID, and an access mode; where the access mode is an access mode of the target access NE, or a target cell Access mode.
  • Access modes include: open, close, and hybrid modes.
  • step 301 if the specific scheme of performing the first step 301 is selected in step 301, the corresponding scheme needs to be selected in each of the following steps. That is, if the specific scheme of performing the second step 301 is selected in step 301, the specific scheme of the second step 302 is also performed in step 302.
  • Step 302 The target mobility management network element sends a context request message to the source mobility management network element.
  • the specific solution of the first step 302 the target mobility management network element, according to the received information in the update request, includes the CSG information that the user accesses on the target side and/or the capability of the target access network element to support SIPTO.
  • the context request message is sent to the source mobility management network element.
  • the specific solution of the second step 302 is the same as step 302 above.
  • Step 303 The source mobility management network element sends a context response message to the target mobility management network element.
  • the specific solution of the first step 303 is: the source mobility management network element is based on the user's access information on the target side, that is, according to the user CSG related subscription data (in this embodiment, the user CSG related subscription data source mobility)
  • the management network element is known to be located in the context request message sent by the target mobility management network element, or the target access provided in the context request message sent by the target mobility management network element.
  • the network element supports the SIPTO capability to determine whether the user equipment SIPTO PDN connection can be maintained on the target side (in particular, when it is determined according to the CSG information of the user on the target side whether the user equipment SIPTO PDN connection can be maintained on the target side, specifically
  • the source mobility management network element needs to combine the CSG information accessed by the user on the source side and the target side and the CSG related subscription data of the user to determine whether the PDN connection of the SIPTO can be maintained. For example: when the user When the CSG ID on the target side is the same as the CSG ID on the source side, and the number of users CSG related subscriptions Allowing the PDN connection movement of the SIPTO to maintain the PDN connection of the SIPTO on the target side.
  • the CSG information of the user on the source side is known to the source mobility management network element. If the UE cannot maintain the SIPTO PDN connection on the target side, then Indicates that the SIPTO PDN connection needs to be released, and step 304 is performed; if the UE can maintain the SIPTO PDN connection on the target side, the source mobility management network element may send a context response message to the target mobility management network element, where the message includes the first SIPTO indicates the cell, and step 305 is performed.
  • the access information of the user on the target side includes, but is not limited to, at least one of the following: CSG information accessed by the user on the target side and user CSG related subscription data,
  • the target access NE of the service user supports the SIPTO capability, the IP address of the target mobility management network element of the service user, and the address of the user plane gateway.
  • the mobility management network element is known to the user CSG related subscription data, and the user CSG related subscription data includes at least: a CSG ID that the user is allowed to access, whether the CSG ID accessed by the user allows the SIPTO PDN and the SIPTO PDN to be used. Whether to allow one of the mobiles; access network element support
  • the STPTO capability refers to the ability of the access network element to transmit data packets to the PDN network.
  • the first SIPTO indication information element may indicate whether the target mobility management network element user has a SIPTO PDN connection (or a bearer), or which PDN connections (or which are supported).
  • the SIPTO is used.
  • the specific method may be an indication of the PDN granularity: ⁇ APN, SIPTO flag ⁇ ; or a bearer ID (SIPTO flag), where SIPTO fla indicates whether the PDN or bearer is a PDN or bearer for SIPTO. . If the PDN indicating that the PDN is SIPTO is indicated, the PDN-related bearers are all managed by SIPTO.
  • the indication may be indicated by a value: for example, “0” identifies the PDN connection where the PDN is SIPTO, and “1” the PDN is not a PDN connection of the SIPTO; and may also indicate whether to carry the cell, such as carrying
  • the SIPTO flag identifies the PDN connection where the PDN is SIPTO. If it is not carried, it indicates no.
  • the target mobility management network element After the target mobility management network element receives the context corresponding message, the target mobility management network element indicates, according to the identifier of the PDN connection of the SIPTO, that the target access network element uses the bearer for SIPTO and the PDN connection for SIPTO when establishing the radio bearer.
  • the corresponding bearers are all SIPTO bearers.
  • the source mobility management network element > the CSG information of the UE on the target side and the CSG related subscription data of the UE provided in the context request message sent by the target mobility management network element, or the capability of the target access network element to support SIPTO determines the UE Whether the SIPTO PDN connection can remain specific on the target side can be:
  • the UE does not allow the CSG ID in the CSG information of the target side to use the SIPTO PDN connection in the user-related CSG subscription data;
  • the UE does not allow the SIPTO PDN used by the CSG ID in the CSG information of the target side to be moved in the user-related CSG subscription data;
  • the access mode of the target cell or the access network element in the CSG information of the target side is a closed mode, and the UE is not the current CSG subscription user, and is not allowed to access the target cell;
  • the target cell or the access network element in the CS message on the target side is a hybrid mode, and the UE is not the current CSG subscription user;
  • the target cell or access network element is in an open mode;
  • the ability of the UE to support SIPTO in the target-side target access NE does not support SIPTO; the UE cannot maintain the SIPTO capability of the target-side access NE to support SIPTO, and the accessed CSG ID allows SIPTO PDN connection, optionally, It also allows the movement of SIPTO PDN connections; it can be maintained.
  • the source mobility management network element according to the target mobility management network element carries the IP address of the target mobility management network element carried in the context request message (the IP address may follow the target mobility management network)
  • the request message sent by the element is received by the source mobility management network element together.
  • the network topology may also be used.
  • the network topology may be configured by the operator in the mobility management network element, and may be an IP address. Whether the relationship between the geographical mobility management network element and the service SIPTO PDN and the S-GW and the P-GW can maintain the SIPTO PDN connection between the S-GW and the S-GW and the P-GW.
  • step 304 is performed; if it is determined that the SIPTO PDN connection cannot be maintained, the source mobility management network element may include a context response message including the first SIPTO indication cell. Send to the target mobility management network element, and go to step 305.
  • Step 304 The source mobility management network element sends a request message including deleting the SIPTO PDN connection to the S-GW, and receives a response message returned by the S-GW, and correspondingly, the S-GW sends a message to delete the SIPTO PDN connection. Go to the P-GW and receive a response message from the P-GW.
  • the S-GW After the S-GW receives the response message returned by the P-GW, it represents that the process of deleting the SIPTO PDN connection of the user on the target side has been completed.
  • Step 305 The target mobility management network element sends a routing area/tracking area update accept message to the user equipment.
  • the target mobility management network element may further send a context confirmation message to the source mobility management network element, and the target mobility management network element Update bearer allocates resources on the target side, if SIPTO PDN It can be maintained that the target mobility management network element allocates resources for the bearer or connection of the STPTO.
  • This process is applicable not only to the scenario where the service gateway is unchanged, but also to the scenario where the service gateway changes.
  • the target mobility management network element sends a create session request message to
  • the S-GW sends an Update Holder Request message to the P-GW.
  • the P-GW sends an update bearer response message to the S-GW, and the S-GW sends a create session response message to the target mobility management network element. If the target mobility management network element does not have user-related subscription data, the target mobility management network element and the Home Subscriber Server (HSS) or the Home Location Register (HLR) interactively update the location information and obtain the user subscription. data.
  • HSS Home Subscriber Server
  • HLR Home Location Register
  • the method for releasing a connection has the following advantages or advantages: It provides a solution for how to release the SIPTO PDN connection when the mobility management network element of the J service is changed due to user movement.
  • the source mobility management network element determines whether the SIPTO can be maintained on the target side according to at least one of the user side CSG information and the user CSG related subscription data, or the target access network element supporting SIPTO, when determining the SIPTO PDN.
  • the network side establishes a SIPTO PDN connection for the UE on the target side.
  • the source mobility management network element sends a message to delete the SIPTO PDN connection.
  • the continuity of the user service can be ensured, and the network side can avoid the situation that the UE continuously creates a SIPTO PDN connection during the mobile process, and can balance the resource utilization of the operator.
  • the PDN connection is released, so that operators can use network resources reasonably.
  • the method for releasing the connection provided in the embodiment 3 is performed in the scenario that the routing area update or the tracking area update process is initiated by the UE on the user side, and the method for releasing the connection according to the embodiment of the present invention may also be performed by the network side. Execution in the scenario of the initiated handover process.
  • the method for releasing the connection in the scenario of the handover process initiated by the network side includes:
  • the method mainly relies on the mobility management network element that provides services for the UE before the mobility management network element of the UE mobile service changes.
  • Step 401 The source access NE sends a handover request message to the source mobility management network element.
  • the specific solution of the first step 401 is: the source access NE sends a handover request message to the source mobility management network element, where the handover request message may include a Tracking Area Identity (TAI) that the user accesses on the target side. Or Routing Area Identity (RAI) or target cell ID.
  • TAI Tracking Area Identity
  • RAI Routing Area Identity
  • the specific solution of the second step 401 is: the source access NE sends a handover request message to the source mobility management network element, where the handover request message includes the CSG information of the target side and/or the SIPTO capability of the target access network element.
  • step 401 if the specific scheme of performing the first step 401 is selected in step 401, the corresponding scheme needs to be selected in each of the following steps. That is, if the specific scheme of performing the second step 401 is selected in step 401, the specific scheme of the second step 402 is also performed in step 402.
  • Step 402 The source mobility management network element sends a forward handover request message to the target mobility management network element.
  • the user context information is included in the message.
  • the specific solution of the first step 402 After receiving the handover request message, the source mobility management network element obtains the IP address of the target mobility management network element according to the TAI or RAI or the target cell ID in the message.
  • the source mobility management network element may, according to the obtained IP address, optionally determine whether a signaling interaction can be performed between the target mobility management network element and the user plane gateway serving the SIPTO PDN according to the network topology, so as to maintain the SIPTO PDN. If the connection is not available for signaling interaction, the SIPTO PDN connection cannot be maintained. If the LIPN PDN connection needs to be released, step 403 is performed. If it is determined that signaling interaction can be performed, that is, the SIPTO PDN connection can be maintained, the source is The mobility management network element may send a context response message containing the first SIPTO indication cell to the target mobility management network element and perform step «404.
  • the target mobility management network element sends a create bearer request message to the S-GW.
  • the S-GW creates a bearer after receiving the bearer creation message.
  • the specific solution of the second step 402 After receiving the handover request message, the source mobility management network element provides the user access on the target side according to the handover request message sent by the source access network element.
  • the information that is, the CSG information of the UE on the target side provided by the user CSG related subscription data and the handover request message sent by the target mobility management network element, or the handover request message sent according to the target mobility management network element
  • the target access network element supports the SIPTO capability, and determines whether the user equipment SIPTO PDN connection can be maintained on the target side (in particular, when it is determined according to the CSG information of the user on the target side whether the user equipment SIPTO PDN connection can be maintained on the target side, It is also necessary to combine the CSG information of the user on the source side, and the determined result can be valid only when the CSG information of the user on the target side and the CSG information of the user on the source side are the same, wherein the user is on the source side of the CSG.
  • the information is known to the source mobility management network element. If the UE cannot maintain the SIPTO PDN connection on the target side, it indicates that the SIPTO PDN connection needs to be released, and step 403 is performed; if the UE can maintain the SIPTO PDN connection on the target side, The source mobility management network element may send a context response message to the target mobility management network element, where the message may include the first SIPTO. Indicate the cell and perform step 404.
  • Step 403 The source mobility management network element sends a request message including deleting the SIPTO PDN connection to the S-GW, and receives a response message returned by the S-GW, and correspondingly, the S-GW sends a message for deleting the SIPTO PDN connection. Go to the P-GW and receive a response message from the P-GW.
  • the S-GW After the S-GW receives the response message returned by the P-GW, it represents that the process of deleting the SIPTO PDN connection of the user on the target side has been completed.
  • Step 404 After receiving the forward handover request message, the target mobility management network element sends a forward handover response message to the source mobility management network element. After the target mobility management network element returns the handover response message, the network side starts to perform the handover procedure. After the handover is completed, the target mobility management network element sends a forward handover completion message to the source mobility management network element. After receiving the forward handover complete message, the source mobility management network element sends a forward handover complete confirmation message to the target mobility management network element. And the target mobility management network element sends a bearer update message to the S-GW. Correspondingly, after receiving the bearer update message, the S-GW sends a bearer update response message to the target mobility management network element.
  • the solution of the embodiment of the present invention provides a solution for how to dry the SIPTO PDN connection by using the handover procedure when the mobility management network element of the user mobility change is changed.
  • the source mobility management network element determines whether the SIPTO can be maintained on the target side according to the CSG-related subscription data of the user, the capability of the SIPTO of the access network element, and the like.
  • the network side establishes a SIPTO PDN for the UE on the target side.
  • the source mobility management network element when it is determined that the SIPTO PDN connection cannot be maintained, the source mobility management network element sends a message to delete the SIPTO PDN connection. In this way, the continuity of the user service can be ensured, and the network side can avoid the situation that the UE continuously creates a SIPTO PDN connection during the mobile process, and can balance the resource utilization of the operator.
  • the PDN connection is released, so that operators can use network resources reasonably.
  • this embodiment provides a specific method for releasing a connection, which mainly relies on the mobility of providing services for the UE after the change of the mobility management network element of the service due to UE mobility changes.
  • the management network element that is, the target mobility management network element.
  • the method includes:
  • Step 501 The source access NE sends a handover request message to the source mobility management network element.
  • Step 502 The source mobility management network element sends a forward handover request message to the target mobility management network element.
  • the user context information is included in the message.
  • the source mobility management network element sends a forward handover request message to the target mobility management network element, where the message may include a first SIPTO indication cell, and the first SIPTO indicates the implementation of the information element.
  • the message includes user context information.
  • the target mobility management network element After receiving the user context, the target mobility management network element indicates that the target access network element uses the connection for SIPTO according to the PDN identifier of the SIPTO when establishing the corresponding wireless bearer. For the data packet of the SIPTO connected to each bearer, the target access NE may not send it to the secure tunnel.
  • the target access NE may carry an indication of whether SIPTO is supported in the bearer creation response message.
  • the target mobility management network element will send a create bearer request message to the S-GW.
  • the S-GW creates a bearer after receiving the bearer message.
  • the specific solution of the second step 502 the source mobility management network element to the target mobility management network element Send forward switching request message.
  • the message may include CSG information and a first STPTO indication cell of the user on the source side.
  • the CSG information of the user on the source side includes at least one of the following: a CSG ID, a CSG cell, and an access mode of the access network element of the user on the source side.
  • step 502 if the specific scheme of performing the first step 502 is selected in step 502, the corresponding scheme needs to be selected in each of the following steps. That is, if the specific scheme of performing the second step 502 is selected in step 502, the specific scheme of the second step 503 is also performed in step 503.
  • Step 503 After receiving the handover request message, the target mobility management network element sends a forward handover response message to the source mobility management network element.
  • the specific solution of the first step 503A after receiving the handover request message, the target mobility management network element determines, according to the indication of the first SIPTO indication cell, whether the user is connected to the corresponding SIPTO PDN connection, if the user exists The SIPTO PDN connection, the target mobility management network element may select the target mobility management network element and the user plane gateway serving the SIPTO PDN according to the network topology according to the P-GW address corresponding to the PDN connection in the user context information.
  • the target mobility management network element can attempt to send a bearer update message to the user plane gateway of the SIPTO PDN for determination; if the user's service network element changes, the target mobility The management network element may send a create session message to the newly selected service gateway, and the newly selected service gateway sends a bearer update message to the user plane gateway of the SIPTO PDN, and the service gateway receives the response message sent by the user plane gateway of the SIPTO PDN.
  • the target mobility management network element sends a response message to create a session success, if the service network If the response message sent by the user plane gateway of the SIPTO PDN is not received, the failure message is returned to the target mobility management network element, and accordingly, if the target mobility management network element receives the response message of the user plane gateway or receives the service gateway
  • the sent message indicating that the session is successfully created represents that the signaling interaction can be determined, otherwise the signaling interaction cannot be performed.
  • the target mobility management network element generates a second SIPTO indication information according to the determined result, and is sent to the source mobility management network element in the forward handover response message, where the second SIPTO indication information may be used to indicate source mobility.
  • Management network element SIPTO Whether the PDN connection can be maintained on the target side can also be used to indicate whether the source mobility management network element deletes the SIPTO PDN connection, or can be used to indicate the source mobility management network element target mobility management network element and the SIPTO user plane gateway. Whether it is possible to maintain a SIPTO PDN connection, etc.
  • the second SIPTO indication cell may indicate the source mobility management network element by using a specific value.
  • the SIPTO PDN connection needs to be deleted, and the "1" identifier does not need to delete the SIPTO PDN connection; or
  • the source mobility management network element is indicated by carrying the cell, for example, by carrying the cell identifier, the SIPTO PDN connection needs to be deleted, and the SIPTO PDN connection does not need to be deleted without carrying the cell identifier; the source mobility management network element is received. After the forward handover response message, it is executed according to the indication of the second SIPTO indication cell.
  • the source The mobility management network element deletes the SIPTO PDN connection. For the specific process of deleting the SIPTO PDN connection by the source mobility management network element, refer to step 304 in Embodiment 3.
  • the specific solution of the first step 503A may also be the specific solution of the first step 503B, and the specific solution of the first step 503B is the same as the above step 503.
  • the specific scheme of the first step 503 A can also be performed in the following step 504.
  • step 503 The specific scheme of the second step 503 is the same as step 503 above.
  • Step 504 After the target mobility management network element returns the handover response message, the network side starts to perform the handover process. After the handover is completed, the target mobility management network element sends a forward handover completion message to the source mobility management network element.
  • step 504A The specific solution of the first step 504A: The same as step 504.
  • the specific scheme of the first step 504B the specific scheme of the first step 503A described above.
  • the specific scheme of the second step 504 is the same as step 504 above.
  • Step 505 After receiving the forward handover complete message, the source mobility management network element sends a forward handover complete confirmation message to the target mobility management network element. And the target mobility management network element sends a bearer update message to the S-GW, and correspondingly, after receiving the bearer update message, the S-GW sends the The target mobility management network element sends a bearer update response message.
  • the specific scheme of the first step 505 and the specific scheme of the second step 505 are the same as the above step 505.
  • Step 506 The target mobility management network element receives the bearer update response message. Since the handover procedure has ended, that is, the UE has accessed the target side, the UE initiates a routing area update procedure or a tracking area update request message.
  • step 506 The specific solution of the first step 506 is the same as step 506 above.
  • the specific solution of the second step 506 After the target mobility management network element receives the bearer update response message, the UE initiates a routing area update process or a tracking area update request message. After receiving the update request message of the UE, the target mobility management network element determines whether the user is connected to the corresponding SIPTO PDN connection according to the indication of the first SIPTO indication cell in the specific solution of the second step 502, if the user exists.
  • the SIPTO PDN connection that is, the user is connected to the SIPTO PDN connection indicated in the first SIPTO indication cell, and the user CSG related subscription data is obtained from the HSS, and according to the acquired user CSG related subscription data and the original storage.
  • the CSG information on the target mobility management network element can determine whether the SIPTO PDN connection can be maintained on the target side (in particular, when When the CSG information on the target side determines whether the SIPTO PDN connection can be maintained on the target side, specifically, in combination with the second scheme of the second step 502, the CSG information of the user on the source side obtained by the target mobility management network element is required.
  • the target mobility management network element may determine the PDN of the SIPTO according to the CSG information accessed by the user on the source side and the target side and the CSG related subscription data of the user. Whether the connection can be maintained.
  • the CSG ID of the user on the target side is the same as the CSG ID of the user on the source side
  • the user CSG related subscription allows the PDN connection movement of the SIPTO to maintain the PDN connection of the SIPTO on the target side.
  • the CSG information of the user on the source side is known to the source mobility management network element. If the SIPTO PDN connection cannot be maintained, the representative needs to dry the SIPTO PDN connection, and the target mobility management network element sends the deleted SIPTO PDN connection.
  • the message is sent to the S-GW and receives the response message returned by the S-GW, and correspondingly, the S-GW sends the corresponding SIPTO PDN.
  • the connected message is sent to the P-GW, and a response message returned by the P-GW is received.
  • the target mobility management network element accesses the network element according to the acquired user CSG related subscription data, and the CS meta-content and/or g-standard access network element originally stored on the 3 ⁇ 4 standard mobility management network element.
  • the UE does not allow the CSG ID in the CSG information of the target side to use the SIPTO PDN connection in the user-related CSG subscription data;
  • the UE does not allow the SIPTO PDN used by the CSG ID in the CSG information of the target side to be moved in the user-related CSG subscription data;
  • the access mode of the target cell or the access network element in the CSGi message of the target side is a closed mode, and the UE is not a subscription user of the current CSG, and is not allowed to access the target cell;
  • the target cell or the access network element in the CSG information of the target side is a hybrid mode, and the UE is not a subscription user of the current CSG;
  • the target cell or access network element is in an open mode
  • the ability of the UE to support SIPTO in the target-side target access NE does not support SIPTO; the UE cannot maintain the SIPTO capability of the target-side target access NE to support SIPTO, and the accessed CSG ID allows SIPTO PDN connection, optionally, It also allows the movement of SIPTO PDN connections; it can be maintained.
  • the network topology determination may be combined to determine whether the target mobility management network element and the SIPTO PDN user plane gateway are reachable. If the reachable, the PDN connection of the SIPTO is sent to the target mobility management network element in the user context, and the target mobility management network element is indicated in the message as the SIPTO PDN connection or bearer.
  • Embodiment 3 SIPTO flag; if not reachable, the PDN connection of the SIPTO is not included in the user context; in step 506, after the target mobility management network element obtains the user subscription data, it is determined that the user cannot maintain the SIPTO PDN connection on the target side. The SIPTO PDN connection is deleted.
  • step 406 it should be specially noted that if the target mobility management network element itself saves the user subscription data, it may not rely on the routing area update initiated by the UE or the tracking area update process, directly according to the stored user subscription data, and the CSG information and/or target.
  • the SIPTO capability of the access network element determines whether the user can reserve the SIPTO PDN connection on the target side to initiate the SIPTO PDN connection deletion process.
  • the method for releasing the connection provided in this embodiment is performed in the scenario of the handover process initiated by the network side, and the solution is also applicable to the scenario in which the routing area update or the tracking area update process is initiated by the UE on the user side.
  • the handover message in the handover procedure in this embodiment is replaced with the context corresponding message in the update process, as needed.
  • the source mobility management network element sends a message including the first SIPTO indication cell to the target mobility management network element in the context response message.
  • the behavior of the target mobility management network element may refer to step 503 or step 506.
  • the method for releasing a connection has the following advantages or advantages: It provides a solution for how to release the SIPTO PDN connection when the mobility management network element of the service is changed due to user mobility. After the target mobility management network element determines that there is a corresponding SIPTO PDN connection according to the identifier of the source mobility management network element, one or more types according to CGS information, user CSG related subscription data, and SIPTO capability of accessing the network element. The combination determines whether the SIPTO can be maintained on the target side.
  • the source mobility management network element may send an indication to delete the SIPTO PDN connection, and the source mobility management network element deletes the SIPTO PDN connection according to the indication. , or directly initiate the process of deleting the SIPTO PDN connection by the target mobility management network element. In this way, the continuity of the user service can be ensured, and the network side can avoid the situation that the UE continuously creates a SIPTO PDN connection during the mobile process, and can balance the resource utilization of the operator, and the SIPTO PDN connection cannot be maintained. , release the PDN connection, so that operators can use the network reasonably Network resources.
  • the local IP access that is, the UE directly accesses the resources of the home network device or the company network through the access network element, adopts the same architecture as the SIPTO in the embodiment of the present invention. Therefore, when the UE having the LIPA PDN connection is moving, there is also a problem to be solved by the embodiment of the present invention.
  • the method for processing SIPTO in the above embodiment of the present invention is also applicable to the processing of Local IP Access (LIPA). I won't go into details here!
  • the present embodiment provides a device 500 for releasing a connection.
  • the device is suitable as a source mobility management network element, and includes: a determining unit 51 and an executing unit 52.
  • the determining unit 51 is configured to determine whether to release the SIPTO PDN connection according to the access information of the user on the target side, and execute the sheep element 52, when the determining unit 51 determines to release the SIPTO PDN connection, sending a message for deleting the SIPTO PDN connection to User plane gateway.
  • the apparatus 500 may further include the following modules: an information acquisition unit 54, an IP acquisition unit 55, and a transmitting unit 53.
  • the information acquiring unit 54 is configured to acquire the CSG information accessed by the user and/or the capability of the target access network element to support the SIPTO; the IP obtaining unit 55 is configured to acquire the IP address of the target mobility management network element;
  • the determining unit 51 determines to maintain the SIPTO connection, it sends a message to the target mobility management network element, where the message includes a first SIPTO indication cell for indicating a PDN connection or bearer.
  • the determining unit 51 determines whether to release the SIPTO connection according to the CSG related subscription data of the user and the CSG information of the user access acquired by the information acquiring unit 54 or according to the capability of the target access NE to support the SIPTO; or, determining the unit 51 determining, according to the IP address of the target mobility management network element acquired by the IP obtaining unit 55, whether to dry the SIPTO PDN connection.
  • the CSG information accessed by the user includes at least a CSG ID and an access mode
  • the determining unit 51 is configured to obtain, according to the user CSG related subscription data, the information acquiring unit 54.
  • Taking the CSG information accessed by the user to determine whether to release the STPTO PDN connection can be implemented by at least one of the following:
  • the determining unit 51 determines to release the SIPTO PD connection, otherwise the determining unit 51 determines to maintain the SIPTO PD connection;
  • the determining unit 51 determines to release the SIPTO PDN connection, otherwise the determining unit 51 determines to maintain the SIPTO PDN connection;
  • the sheep element 51 determines to release the SIPTO PDN connection, otherwise the determining unit 51 determines to maintain the SIPTO PDN. connection.
  • the determining unit 51 is configured to determine whether to release the SIPTO connection according to the capability of the target access NE to support the SIPTO by:
  • the determining unit 51 determines to release the SIPTO PDN connection, otherwise the determining unit 51 determines to maintain the SIPTO PDN connection.
  • determining whether the sheep 51 is used to determine whether to release the SIPTO PD connection according to the IP address of the target mobility management network element retrieved by the IP acquiring unit 55 can be implemented as follows:
  • the determining unit 51 determines to release the SIPTO PDN connection; otherwise the determining unit 51 determines to maintain the SIPTO PDN connection.
  • the present embodiment provides a device for releasing a connection, and the device has a function of determining whether a SIPTO PDN connection needs to be released, and transmitting a message for deleting a SIPTO PDN connection after determining that the SIPTO PD connection needs to be released, which solves the prior art.
  • the mobility management network element of the target side directly establishes a SIPTO PDN connection for the UE, resulting in network resources.
  • the technical problem of source waste and thus the technical effect of rational use of network resources.
  • the present embodiment provides a device 600 for releasing a connection.
  • the device is suitable as a target mobility management network element, and includes: a receiving unit 61, a first determining unit 62, a second determining unit 63, and an executing unit 64. .
  • Receiving a sheep element 61 configured to receive a message from a source mobility management network element, where the message includes a first SIPTO indication cell for indicating a PDN connection or bearer, and a first determining unit 62, configured to The first SIPTO indication message in the message determines whether there is a corresponding SIPTO PDN connection; and the second determining unit 63 is configured to: when the first determining unit 62 determines that there is a corresponding SIPTO PDN connection, according to the user access information on the target side Determining whether to forward the SIPTO PDN connection; and executing unit 64, configured to perform a process of deleting the SIPTO PDN connection when the second determining unit 63 determines to release the SIPTO PDN connection.
  • the access information of the user on the label side includes at least one of the following: CSG information accessed by the user and related CSG subscription data, and the target access NE supports the SIPTO capability and the address of the user plane gateway.
  • the second determining unit 63 includes:
  • the address determining module 631 is configured to determine, according to an address of the user plane gateway, whether to release the SIPTO PDN connection, and/or the information determining module 632, configured to: according to the CSG related subscription data of the user, and the CSG information accessed by the user, Or determining whether to release the SIPTO PDN connection according to the capability of the target access NE to support SIPTO.
  • the execution unit 64 includes:
  • the executing module 641 is configured to send a message for deleting the SIPTO PDN connection to the source side when the address determining module 631 determines to release the SIPTO PDN connection.
  • a module sending module 642 configured to send a message for deleting the SIPTO PD connection to the user plane gateway when the information determining module 632 determines to release the SIPTO PD connection.
  • the address determining module 631 can determine the following manner: If the user plane gateway address is present in the network topology, the address determination module 631 determines to release the SIPTO PDN connection.
  • the CSG information accessed by the user in this embodiment includes at least the CSG ID and the access mode. Therefore, the information determining module 632 is configured to determine whether to release the information according to the CSG related subscription data of the user and the CSG information accessed by the user.
  • the SIPTO PDN it can be determined by at least one of the following methods:
  • the information determination module 632 determines to release the SIPTO PDN connection
  • the information determining module 632 determines to release the SIPTO PDN connection; if the access mode is the closed mode, and the served user equipment is not The subscriber of the subscriber CSG related subscription data, the information determination module 632 determines to release the SIPTO PDN connection.
  • the information determining module 632 when configured to determine whether to release the SIPTO PD connection according to the capability of the target access NE to support the SIPTO, the method can be implemented as follows:
  • information determination module 632 determines to release the SIPTO PD connection.
  • the embodiment provides a device for releasing a connection, and the device solves the technical means for determining whether the SIPTO PDN connection needs to be released by the target mobility management network element, and solves the problem in the prior art, after the UE moves, the target mobility management network.
  • a system for releasing a connection includes: a source side 81 and a target side 82.
  • the source side 81 is configured to send, when the mobility management network element of the serving user changes, a message including a first SIPTO indication cell for indicating a PDN connection or bearer to the target side;
  • the target side 82 is configured to receive the message, and determine, according to the indication of the first STPTO indication cell in the message, whether there is a corresponding SIPTO PDN connection, and if it is determined that there is a corresponding SIPTO PDN connection, according to the user
  • the access information on the target side determines whether to release the SIPTO PDN connection; if it is determined to release the SIPTO PDN connection, the process of deleting the SIPTO PDN connection is performed.
  • This implementation provides a solution for how to release a SIPTO PDN connection when the mobility management network element of the service changes due to user mobility.
  • the target side can determine whether the SIPTO PDN connection needs to be released according to the PDN related information network side. When it is determined that the SIPTO PDN connection needs to be released, the SIPTO PDN connection is deleted. In this way, the continuity of the user service can be ensured, and the network side can avoid the situation that the UE continuously creates a SIPTO PDN connection during the mobile process, and can balance the utilization of the operator resources, so that the operator can reasonably utilize the network resources.
  • the solution provided by the embodiment of the present invention has the following advantages or advantages: It provides a solution for how to dry the SIPTO PDN connection when the mobility management network element of the service changes due to user mobility.
  • the source mobility management network element or the target mobility management network element can determine whether the SIPTO PDN connection needs to be released according to the user's access information on the target side. When it is determined that the SIPTO PDN connection needs to be released, the SIPTO PDN connection is deleted. In this way, the continuity of the user service can be ensured, and the network side can avoid the situation that the UE continuously creates a SIPTO PDN connection during the mobile process, and can balance the resource utilization of the operator. When the SIPTO PDN connection cannot be maintained, The PDN connection is released, so that operators can use network resources reasonably.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the computer software product is stored in a readable storage medium shield, such as a computer floppy disk, a hard disk or an optical disk, etc., including a thousand instructions for making a device (may be a notebook) A computer or the like) performs the methods described in various embodiments of the present invention.
  • a readable storage medium shield such as a computer floppy disk, a hard disk or an optical disk, etc., including a thousand instructions for making a device (may be a notebook) A computer or the like
  • the above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the

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

Abstract

L'invention concerne un procédé, un dispositif et un système pour libération de connexion, se rapportant au domaine de la technologie des communications, et permettant de résoudre le problème technique existant selon lequel on ne saurait utiliser raisonnablement des ressources de réseau car la connexion établie du réseau de données par paquet à décharge de trafic IP (SIPTO PDN) que l'on sélectionne n'est pas libérée à temps. Lorsque l'élément de réseau de gestion de mobilité pour un utilisateur de service a été modifié, ladite connexion SIPTO PDN est considérée comme devant être libérée ou non selon les informations d'accès de l'utilisateur du côté cible; si une libération est décidée, le message de suppression de cette connexion sera transmis à une passerelle du côté utilisateur. On utilise essentiellement le procédé, le dispositif et le système selon l'invention dans la perspective d'une optimisation des ressources de réseau.
PCT/CN2010/076397 2009-08-28 2010-08-26 Procédé, dispositif et système pour libération de connexion WO2011023125A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10285104B2 (en) 2015-04-09 2019-05-07 Zte Corporation Cross-MeNB switching method and apparatus and base station

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013086727A1 (fr) * 2011-12-15 2013-06-20 华为技术有限公司 Procédé, dispositif et système de traitement de transfert
CN102611696B (zh) * 2012-01-21 2015-09-02 电信科学技术研究院 一种策略信息的传输方法和设备
CN109905904B (zh) * 2012-06-29 2022-05-03 北京三星通信技术研究有限公司 一种接入控制方法
CN104717705B (zh) * 2013-12-12 2019-08-23 中兴通讯股份有限公司 一种处理选定的ip流量卸载连接的方法及基站
CN104703293B (zh) * 2014-12-11 2019-11-29 南京中兴软件有限责任公司 一种lipa/sipto连接的建立方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101184323A (zh) * 2006-11-14 2008-05-21 中兴通讯股份有限公司 直接信令连接重建方法
CN101483899A (zh) * 2008-01-08 2009-07-15 华为技术有限公司 一种切换过程中发起源网络承载释放的方法、系统及网络锚点
CN101500220A (zh) * 2008-02-02 2009-08-05 华为技术有限公司 通知网络释放资源的方法、装置和系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101184323A (zh) * 2006-11-14 2008-05-21 中兴通讯股份有限公司 直接信令连接重建方法
CN101483899A (zh) * 2008-01-08 2009-07-15 华为技术有限公司 一种切换过程中发起源网络承载释放的方法、系统及网络锚点
CN101500220A (zh) * 2008-02-02 2009-08-05 华为技术有限公司 通知网络释放资源的方法、装置和系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10285104B2 (en) 2015-04-09 2019-05-07 Zte Corporation Cross-MeNB switching method and apparatus and base station

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