WO2009132533A1 - 资源处理的方法、通信***和移动性管理网元 - Google Patents

资源处理的方法、通信***和移动性管理网元 Download PDF

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Publication number
WO2009132533A1
WO2009132533A1 PCT/CN2009/070787 CN2009070787W WO2009132533A1 WO 2009132533 A1 WO2009132533 A1 WO 2009132533A1 CN 2009070787 W CN2009070787 W CN 2009070787W WO 2009132533 A1 WO2009132533 A1 WO 2009132533A1
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Prior art keywords
bearer
domain network
network
packet domain
network element
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PCT/CN2009/070787
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English (en)
French (fr)
Inventor
吴问付
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2010535203A priority Critical patent/JP5073830B2/ja
Priority to US12/430,409 priority patent/US7801083B2/en
Publication of WO2009132533A1 publication Critical patent/WO2009132533A1/zh
Priority to US13/623,879 priority patent/USRE45133E1/en
Priority to US14/464,493 priority patent/USRE46440E1/en
Priority to US15/620,355 priority patent/USRE48262E1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/30Connection release
    • H04W76/34Selective release of ongoing connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/144Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/02Inter-networking arrangements

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a resource processing method, a communication system, and a mobility management network element. Background technique
  • FIG. 1 is a CDMA2000 in a packet domain network and a Code Division Multiple Access (CDMA) network in the 3rd Generation Partnership Project (hereinafter referred to as 3 GPP) in the prior art.
  • CDMA Code Division Multiple Access
  • 3 GPP 3rd Generation Partnership Project
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • MME Mobility Management Entity
  • SGW Serving Gateway entity
  • PGW Packet Data Network Gateway
  • the Serving GPRS Supporting Node (hereinafter referred to as SGSN) is used to implement functions such as routing and forwarding, mobility management, session management, and user information storage in the GPRS/UMTS network.
  • Lx CS Circuit Switch Domain
  • Access Network implements wireless-related functions in CDMA2000 lx networks.
  • Lx CS MSC Mobile Switching Center
  • the Interworking Solution Function (hereinafter referred to as IWS) implements the lx CS signaling exchange forwarding function, and encapsulates the lx CS signaling from the lx CS MSC and sends it to the UE through the 3GPP packet domain network; or the UE passes the 3GPP packet domain network.
  • the encapsulated lx CS signaling is sent to the IWS, and the IWS forwards the encapsulated lx CS signaling to the lx CS MSC.
  • VoIP Voice over IP
  • 2 is a signaling flowchart of a handover of a VoIP service of a user equipment UE from a 3GPP packet domain network to a CDMA2000 lx network in the prior art. As shown in FIG. 2, the method includes:
  • the access network of the 3GPP packet domain network decides to switch to the CDMA2000 lx network, and the access network of the 3GPP packet domain network may be E-UTRAN, GERAN, UTRAN;
  • the access network of the 3GPP packet domain network sends a relocation indication to notify the UE to perform an inter-system handover procedure process
  • the UE sends an lx Origination message to the lx CS IWS through the 3GPP packet domain network; that is, the UE sends the lx Origination message to the access network of the 3GPP packet domain network, and the access network of the 3GPP packet domain network sends the uplink CDMA2000 tunnel message.
  • the lx Origination message is encapsulated in this message and sent to the mobility management network element of the 3GPP packet domain network.
  • the mobility management network element of the 3GPP packet domain network is the SGSN; for the E-UTRAN network, 3GPP The mobility management network element of the packet domain network is the MME.
  • the mobility management network element of the 3GPP packet domain network receives the uplink CDMA2000 After the tunnel message is obtained, the lx Origination message is obtained from the message, and the lx Origination message is sent to the lx CS IWS;
  • the IWS sends a CM Service Request message to the lx CS MSC;
  • the MSC sends an Assignment Request message to the IWS
  • the IWS sends a handover guide Handoff Direction message to the UE through the 3GPP packet domain network. which is
  • the IWS sends a Handoff Direction message to the mobility management network element of the 3GPP packet domain network, and the mobility management network element of the 3GPP packet domain network transmits a downlink CDMA2000P channel message (Handoff Direction message is encapsulated in this message) to the 3GPP packet domain network.
  • Access network the access network of the 3GPP packet domain network forwards the Handoff Direction message to the UE;
  • the UE switches to the CDMA 1 x network, performs transmission through acquisition (Traffic Channel
  • TCC Transmission Channel Acquisition
  • the UE sends an lx handover complete message to the CDMA2000 lx access network
  • the CDMA2000 lx access network sends a Handoff Complete message or an Assignment Complete message to the MSC;
  • Voice calls are established in the CDMA2000 lx network.
  • the UE-related resources in the packet domain network have no corresponding
  • the processing mechanism also exists in the case where the UE is switched from a packet domain network to another circuit domain network similar to a CDMA2000 lx network. Summary of the invention
  • the embodiment of the present invention provides a method for processing a resource, to implement the method in the user equipment, including:
  • the packet domain network After receiving the release request message sent by the access network of the packet domain network or receiving the handover complete message sent by the circuit domain network, the mobility management network element processes the resources of the UE in the packet domain network.
  • the mobility management network element of the packet domain network after receiving the release request message sent by the access network of the packet domain network or receiving the handover complete message sent by the circuit domain network, the mobility management network element of the packet domain network initiates the The processing of resources of the UE in the packet domain network, so that the processing of resources of the UE in the packet domain network is realized in the process of the UE switching from the packet domain network to the circuit domain network.
  • the embodiment of the present invention further provides a communication system, where the user equipment UE switches from the packet domain network to the mobility management network element of the packet domain network and the packet network of the packet domain network, when the user equipment UE switches from the packet domain network to In the circuit domain network process, the access network of the packet domain network is configured to send a release request message to the mobility management network element of the packet domain network, where the mobility management network element of the packet domain network is used to receive the access network of the packet domain network.
  • the release request message processes the resources of the UE in the packet domain network.
  • the access network of the packet domain network sends a release request message to the mobility management network element of the packet domain network, and the mobility management network element of the packet domain network receives the access of the packet domain network.
  • the UE processes the resources in the packet domain network, so that the UE processes the resources in the packet domain network during the process of the UE switching from the packet domain network to the circuit domain network.
  • the embodiment of the present invention further provides another communication system to implement mobility management network element and circuit domain network of the user equipment UE from the packet domain network packet domain network, when the user equipment UE switches from the packet domain network to the circuit domain network.
  • the circuit domain network is configured to send a handover complete message to the mobility management network element of the packet domain network; the mobility management network element of the packet domain network is configured to receive a handover complete message sent by the circuit domain network, and After receiving the handover complete message, the UE processes the resources in the packet domain network.
  • the circuit domain network sends a handover complete message to the mobility management network element of the packet domain network, and after receiving the handover complete message sent by the circuit domain network, the mobility management network element of the packet domain network That is, the processing of the resources of the UE in the packet domain network is initiated, so that the processing of the resources of the UE in the packet domain network is implemented in the process of the UE switching from the packet domain network to the circuit domain network.
  • the embodiment of the present invention further provides a mobility management network element in a packet domain network, to implement processing of resources of a UE in a packet domain network in a process of a user equipment UE switching from a packet domain network to a circuit domain network
  • the mobility management network element includes:
  • the receiving unit is configured to receive a release request message sent by the access network of the packet domain network or a handover of the receiving circuit domain network during the process of the user equipment UE switching from the packet domain network to the circuit domain network Completing the message;
  • the resource processing unit is configured to: after the receiving unit receives the release request message sent by the access network of the packet domain network or receives the handover complete message sent by the circuit domain network, perform the resource of the UE in the packet domain network deal with.
  • the receiving unit receives the release request message sent by the access network of the packet domain network or the receiving circuit domain network in the process of the user equipment UE switching from the packet domain network to the circuit domain network.
  • the handover completion message after the receiving unit receives the release request message sent by the access network of the packet domain network or receives the handover complete message sent by the circuit domain network, the resource processing unit initiates the UE in the packet domain network.
  • the processing of resources thereby realizing the processing of resources of the UE in the packet domain network in the process of the UE switching from the packet domain network to the circuit domain network.
  • FIG. 1 is an interworking architecture diagram of a CDMA2000 lx network in a 3GPP packet domain network and a CDMA network in the prior art;
  • FIG. 4 is a flowchart of another embodiment of a resource processing method according to the present invention.
  • FIG. 5 is a flowchart of still another embodiment of a resource processing method according to the present invention.
  • FIG. 6 is a flowchart of still another embodiment of a resource processing method according to the present invention.
  • FIG. 7 is a signaling flowchart of an embodiment of a resource processing method in a process of a UE switching from a packet domain network to a CDMA2000 lx network;
  • FIG. 8 is a signaling flowchart of another embodiment of a resource processing method for a UE to handover from a packet domain network to a CDMA2000 lx network;
  • FIG. 9 is a signaling flowchart of still another embodiment of a resource processing method for a UE to switch from a packet domain network to a CDMA2000 lx network;
  • Figure 10 is a structural diagram of an embodiment of a communication system of the present invention.
  • FIG. 11 is a structural diagram of another embodiment of a communication system according to the present invention.
  • FIG. 12 is a structural diagram of an embodiment of a mobility management network element in a packet domain network according to the present invention
  • FIG. 13 is a structural diagram of another embodiment of a mobility management network element in a packet domain network according to the present invention.
  • the mobility management network element of the packet domain network is the mobility management network element MME.
  • the circuit domain network that the UE switches from the packet domain network may be a CDMA2000 lx network, or may be a GSM network or other circuit domain network.
  • FIG. 3 is a flowchart of an embodiment of a resource processing method according to the present invention. As shown in FIG. 3, the method includes:
  • Step 31 When the user equipment UE switches from the packet domain network to the circuit domain network, grouping The mobility management network element of the domain network receives the release request message sent by the access network of the packet domain network.
  • Step 32 The mobility management network element of the packet domain network processes the resources of the UE in the packet domain network.
  • FIG. 4 is a flowchart of another embodiment of a resource processing method according to the present invention. As shown in FIG. 4, the method includes: a guide message Handoff Direction;
  • Step 42 After receiving the handover guidance message, the access network of the packet domain network sends a release request message to the mobility management network element of the packet domain network.
  • Step 43 The mobility management network element of the packet domain network receives a release request message sent by the access network of the packet domain network.
  • Step 43 The mobility management network element of the packet domain network processes the resources of the UE in the packet domain network.
  • the access network of the packet domain network implements the handover guidance message sent by the mobility management network element of the packet domain network, determines that the UE performs handover, and actively initiates a release request message, so as to facilitate mobility management of the packet domain network.
  • the network element processes the resources of the UE in the packet domain network.
  • FIG. 5 is a flowchart of still another embodiment of a resource processing method according to the present invention. As shown in FIG. 5, the method includes: sending a Handoff Direction message to a UE;
  • Step 52 After receiving the handover instruction, the UE sends a radio resource control (Radio Resource Control, hereinafter referred to as RRC) release request message to the access network of the packet domain network; the RRC release request message may be used for the packet domain network.
  • the access network indicates that the access network of the packet domain network releases the RRC connection; the RRC release request message sent by the UE may further include indication information indicating that the UE is handed over to the circuit domain network, for example, the UE is in the This message carries a "Cause" cell, setting this cell value to "Handover Triggered” Trigger) " , or the UE carries a "Handover Triggered Indicator" in this message
  • Step 53 After receiving the RRC release request message, the access network of the packet domain network sends a release request message to the mobility management network element of the packet domain network.
  • Step 54 The mobility management network element of the packet domain network receives a release request message sent by the access network of the packet domain network.
  • Step 55 The mobility management network element of the packet domain network processes the resources of the UE in the packet domain network.
  • the UE after receiving the handover instruction message Handoff Direction sent by the network side, that is, after the UE completes the establishment of the circuit domain network access through the packet domain network, the UE initiates the release process to the switch when the switch is ready to switch to the circuit domain network.
  • the access network of the packet domain network sends an RRC release request message to indicate to the network side that the resources of the UE in the packet domain network can be processed.
  • the access network of the packet domain network receives the RRC release request message sent by the UE.
  • the release request message is sent to the mobility management network element of the packet domain network, so that the mobility management network element of the packet domain network processes the resources of the UE in the packet domain network.
  • the release request message sent by the access network of the packet domain network to the mobility management network element of the packet domain network may include indication information indicating the release.
  • the reason for the request is that the UE switches to the circuit domain network, and is used to indicate that the release request is caused by the UE switching to the circuit domain network.
  • the access network of the packet domain network may carry a "Cause” cell in the release request message.
  • FIG. 6 is a flowchart of still another embodiment of a resource processing method according to the present invention. As shown in FIG. 6, the method includes:
  • Step 61 When the user equipment UE switches from the packet domain network to the circuit domain network, the mobility management network element of the packet domain network receives the handover completed by the circuit domain network, and the handover is completed.
  • Step 62 The mobility management network element of the packet domain network processes the resources of the UE in the packet domain network.
  • the mobility management network element of the packet domain network receives the handover completion message sent by the circuit domain network, and may specifically include the following situations according to the composition form of the specific network device:
  • the access network element of the circuit domain network receives the handover completion message sent by the UE, and then sends the handover. Complete the message to the mobility management network element of the packet domain network;
  • the mobility management network element of the circuit domain network receives the access network element of the circuit domain network.
  • the clear command message is sent to the mobility management network element of the packet domain network.
  • the mobility of the packet domain network after the mobility management network element of the packet domain network receives the clear command message.
  • the switching solution function in the management network element can convert it into a handover completion message, or the mobility management network element of the packet domain network can understand that the handover completion message is received after receiving the clear command message for subsequent processing; or
  • the mobility management network element of the circuit domain network sends a clear command message after receiving the handover complete message sent by the access network element of the circuit domain network.
  • the switching solution function network element, the switching solution function network element sends a handover complete message to the mobility management network element of the packet domain network;
  • the switching solution function network element between the circuit domain network and the packet domain network is integrated with the mobility management network element of the circuit domain network, the mobility management network element of the packet domain network receives the mobility management network element of the circuit domain network.
  • the handover completion message sent.
  • the mobility management network element of the circuit domain network may be 1 x CS MSC.
  • the mobility management network element of the packet domain network determines that the UE successfully switches to the circuit domain network according to the handover completion message sent by the received circuit domain in processing the UE switching from the packet domain network to the circuit domain network. Actively initiating processing of resources of the UE in the packet domain network.
  • the mobility management network element of the packet domain network may process the resources of the UE in the packet domain network in one of the following manners:
  • the mobility management network element of the packet domain network initiates user implicit separation (that is, the network side separates the UE from the network side and does not need to send a Detach message to notify the UE to separate) the processing flow, and separates the UE from the packet domain network; or
  • the mobility management network element of the packet domain network does not initiate the operation of the separate UE, and retains all bearers of the UE in the packet domain network, indicating that the serving gateway entity suspends the bearer; or
  • the mobility management network element of the packet domain network does not initiate the operation of separating the UE.
  • a part of the bearer originating bearer deletion process is deleted, and another part of the bearer is reserved, indicating that the serving gateway entity suspends the reserved part of the bearer, for example
  • the mobility management network element of the packet domain network initiates the bearer deletion process deletion; for the non-guaranteed bit rate (hereinafter referred to as non-GBR)
  • the bearer the mobility management network element of the packet domain network retains the non-GBR bearer, indicating that the serving gateway entity suspends the non-GBR bearer; for the GBR bearer, the network side needs to allocate a proprietary network resource, and the non-GBR does not need the network.
  • the side allocates a dedicated network resource and can share network resources with other carriers.
  • the proprietary network resources can be released in time, and other bearers that can be shared with other bearers will not cause the network. Waste of resources, so suspend processing; or
  • the mobility management network element of the packet domain network initiates the bearer deletion process deletion; for other bearers other than the VoIP bearer, the mobility management network element of the packet domain network reserves other bearers other than the VoIP bearer, indicating that the serving gateway entity will VoIP Other bearers other than the bearer hang, In this way, the voice bearer of the original UE in the packet domain network can be released in time, and other non-voice bearers are reserved, and the suspension process is performed, which is beneficial for the UE to continue to be returned to the packet domain network again. Users provide business without interruption.
  • the mobility management network element of the packet network needs to delete a part of the bearer according to different bearer types, and retain another part of the bearer, the following manner may also be used.
  • the mobility management network element of the packet domain network may instruct the SGW to suspend all the bearers of the user; the mobility management network element of the packet domain network reserves part of the bearers (such as non-GBR bearers) according to different bearer types, and another A part of the bearer (GBR bearer) initiates the bearer deletion process deletion; 2) The mobility management network element of the packet domain network deletes part of the bearer (such as GBR bearer) and another part of bearer (such as non-GBR bearer) according to different bearer types.
  • the SGW Instructing the SGW to suspend the part of the reserved bearer; the SGW suspends the reserved bearer after receiving the message of the suspended bearer, and deletes the unreserved bearer (that is, the SGW deletes the unsuspended bearer, for example, the SGW deletes the GBR bearer) 3)
  • the mobility management network element of the packet domain network deletes part of the bearer (such as GBR bearer) and another part of bearer (such as non-GBR bearer) according to different bearer types, and the mobility management network element of the packet domain network indicates The SGW suspends all bearers of the user. After receiving the message of the suspended bearer, the SGW will bear part of the bearer according to the type of bearer.
  • the bearer is deleted (for example, the GBR bearer), and the reserved bearer is suspended (for example, the non-GBR bearer).
  • the mobility management network element of the packet domain network deletes a part of the bearer according to different bearer types, and reserves another part of the bearer, instructing the SGW to delete the part of the reserved bearer that is reserved and unreserved.
  • Mode 4) may be processed by one of the following four methods: requesting a message, the update bearer request message includes the identifier of the suspended bearer and the identifier of the deleted bearer, and the state of the bearer, for the suspended bearer, the bearer The status is set to hang. For deleted bearers, the status of the bearer is set to Delete. After the service gateway entity receives the update bearer request message, it will The bearer corresponding to the identifier of the suspended bearer is suspended, and the bearer corresponding to the bearer whose status is deleted is deleted.
  • Bearer ID 4 Delete.
  • the request message, the update bearer request message includes a list of the identifiers of the suspended bearers and a list of the identifiers of the deleted bearers; when the serving gateway entity receives the update bearer request message, the bearer corresponding to the suspended bearer identifier list is suspended. Delete the bearer corresponding to the deleted bearer identifier list.
  • the request message, the pending bearer request message includes a list of the identifiers of the suspended bearers and a list of the identifiers of the deleted bearers.
  • the bearer bearer identifier list corresponds to the bearer.
  • the state is set to be suspended, and the bearer corresponding to the deleted bearer identifier list is deleted; the message is sent, the pending bearer request message carries the identifier of the UE and the deleted bearer identifier list, and the serving gateway entity receives the suspended bearer request message.
  • the bearer corresponding to the deleted bearer identifier list is deleted, and other bearers are suspended.
  • the mobility management network element of the packet domain network indicates that the service gateway entity suspends the bearer that needs to be suspended, and can be processed in the following four ways: requesting a message, the update bearer request message includes the identifier and bearer of the bearer to be suspended.
  • the state of the bearer is set to be suspended; when the serving gateway entity receives the update bearer request message, the bearer corresponding to the bearer is suspended; the message is sent, and the update bearer request message includes the identifier and bearer of the UE.
  • Status the status of the bearer is set to hang; when the serving gateway entity receives the update bearer request message, all bearers of the UE are suspended;
  • Manner 3 The mobility management network element of the packet domain network sends a pending bearer request message to the serving gateway entity, where the pending bearer request message includes the identifier of the bearer to be suspended, and the serving gateway entity receives the pending bearer request message. Set the status of the bearer corresponding to the carried identity to hang. The message is sent, and the pending bearer request message carries the identifier of the UE. After receiving the pending bearer request message, the serving gateway entity sets all bearer states of the UE to be suspended.
  • the subsequent serving gateway entity SGW will not trigger paging after receiving the downlink data packet of the suspended bearer, and the SGW may cache the downlink data packets, and the SGW may also release the suspension.
  • Carrying resources between the used SGW and the downlink user plane network element, for example, releasing the downlink TEID used by the suspended bearer, for example, for the E-UTRAN network the SGW releases the resources between the SGW and the eNodeB; for the UTRAN network
  • the SGW releases the resources between the SGW and the RNC or the 3G SGSN; for the GERAN network, the SGW releases the resources between the SGW and the 2G SGSN.
  • the following is a specific example of the UE switching from the packet domain network to the CDMA2000 lx network.
  • circuit domain network types such as the GSM circuit domain network
  • the basic process and processing mechanism are The same or similar, so the embodiment of the present invention will not be described in detail.
  • FIG. 7 is a signaling flowchart of an embodiment of a resource processing method for a UE to switch from a packet domain network to a CDMA2000 lx network. As shown in FIG. 7, the method specifically includes:
  • a VoIP session exists in the packet domain network.
  • the access network of the packet domain network decides to switch to the CDMA2000 lx network.
  • the access network of the packet domain network may be E-UTRAN, GERAN, UTRAN.
  • the access network of the packet domain network sends a relocation indication to notify the UE to perform inter-system handover procedure processing.
  • the UE sends an lx Origination message to the lx CS IWS through the packet domain network, that is, the UE sends the lx Origination message to the access network of the packet domain network, and the access network of the packet domain network sends the uplink CDMA2000 tunnel message (lx Origination)
  • the message is encapsulated in this message) to the mobility management network element of the packet domain network (for the GERAN/UTRAN network, the mobility management network element of the packet domain network is the SGSN; for the E-UTRAN network, the mobility management network of the packet domain network
  • the element is the MME.
  • the mobility management network element of the packet domain network obtains the lx Origination message from the message after receiving the uplink CDMA2000 tunnel message, and sends the lx Origination message to the lx CS IWS.
  • the IWS sends a CM service request CM Service Request message to the lx CS MSC.
  • the MSC sends an allocation request Assignment Request message to the IWS.
  • the IWS sends a handover guide Handoff Direction message to the UE through the packet domain network.
  • the IWS sends a Handoff Direction message to the mobility management network element of the packet domain network, and the mobility management network element of the packet domain network sends a downlink CDMA2000 tunnel message (Handoff Direction message is encapsulated in this message) to the access network of the packet domain network, grouping The access network of the domain network forwards the Handoff Direction message to the UE.
  • a Handoff Direction message is encapsulated in this message
  • the UE may send an RRC release request message, RRC, before switching to the CDMA lx network.
  • the information carries the indication information, which is used to indicate that the RRC connection release of the access network of the packet domain network is caused by the handover. For example, the UE carries a "Cause” cell in this message, and sets the cell value to "Handover Triggered” or the UE carries a "Handover Triggered Indicator” cell in this message.
  • the access network of the packet domain network After receiving the RRC Release Request message, the access network of the packet domain network sends a release message to the mobility management network element of the packet domain network.
  • this release message is the SI UE Context Release Request message; for the UTRAN/GERAN network, this release message is the Iu Release Request message.
  • the access network of the packet domain network carries the indication information in the release request message, and is used to indicate that the mobility management network element of the packet domain network is released due to the UE handover.
  • the access network of the packet domain network carries a "Cause" cell in the release request message, and sets the cell value to "Handover Triggered" or the access network of the packet domain network carries in the release request message.
  • a "Handover Triggered Indicator" cell A "Handover Triggered Indicator" cell.
  • the mobility management network element of the packet domain network manages the resources of the UE in the packet domain network after receiving the foregoing message.
  • the mobility management network element of the packet domain network can be processed as follows:
  • the mobility management network element of the packet domain network initiates a user implicit separation processing procedure to separate the UE from the packet domain network.
  • the bearer separated from the network by the UE is also deleted from the packet domain network.
  • the mobility management network element of the packet domain network only sends a bearer deletion request message to the SGW, and the SGW interacts with the PDN GW to delete the UE.
  • Related bearers
  • the mobility management network element of the packet domain network does not separate the UE (retains the MM context of the UE), and for the GBR bearer, the mobility management network element of the packet domain network initiates the bearer deletion process deletion, that is, sends the bearer deletion request message to the SGW; For non-GBR bearers, the mobility management network elements of the packet domain network retain these bearers, but instruct the SGW to suspend these bearers (Suspend).
  • the mobility management network element of the packet domain network does not separate the UE (retains the MM context of the UE).
  • the mobility management network element of the packet domain network initiates the bearer deletion process deletion, that is, sends the bearer deletion request message to the SGW;
  • the mobility management network of the packet domain network The element retains these bearers, but instructs the SGW to suspend these bearers.
  • the mobility management network element of the packet domain network does not separate the UE (retaining the MM context of the UE). For the bearer, the mobility management network element of the packet domain network reserves these bearers, but instructs the SGW to suspend the bearers.
  • the mobility management network element of the packet domain network may have the following method to instruct the SGW to suspend the bearer: a) The mobility management network element of the packet domain network sends an update bearer request message to the SGW. For each bearer that needs to be suspended, the update bearer request message carries the identity of the bearer and the status of the bearer. The mobility management network element of the packet domain network sets the status of the bearer to "Suspend".
  • the mobility management network element of the packet domain network sends an update bearer request message to the SGW.
  • the message carries the identity of the UE and the status of the bearer.
  • the mobility management network element of the packet domain network sets the status of the bearer to "Suspend", and the serving gateway entity SGW sets the state of all bearers of the UE to be suspended.
  • the mobility management network element of the packet domain network sends a Suspend Bearer Request message to the SGW.
  • the bearer carrying the request message carries the identifier of the bearer.
  • the serving gateway entity SGW sets the state of the bearer corresponding to the bearer identifier to be suspended.
  • the mobility management network element of the packet domain network sends a Suspend Bearer Request message to the SGW, where the message carries the identifier of the UE, and the SGW receives all the bearers of the UE after receiving the pending bearer request message. The status is set to hang.
  • the UE cuts into the CDMA lx network and executes a TCC procedure to obtain a transmission channel.
  • the UE sends an lx handover complete message to the CDMA2000 lx access network.
  • the CDMA2000 lx access network sends a Handoff Complete message or an Assignment Complete message to the MSC.
  • the voice call is established in the CDMA2000 lx network.
  • the mobility management network element of the packet network when the mobility management network element of the packet network needs to delete part of the bearer according to different bearer types, and retain another part of the bearer, the following manner may also be used.
  • the mobility management network element of the packet domain network may instruct the SGW to suspend all the bearers of the user; the mobility management network element of the packet domain network reserves part of the bearers (such as non-GBR bearers) according to different bearer types, and another A part of the bearer (GBR bearer) initiates the bearer deletion process deletion; 2)
  • the mobility management network element of the packet domain network deletes part of the bearer (such as GBR bearer) and another part of bearer (such as non-GBR bearer) according to different bearer types.
  • the SGW Instructing the SGW to suspend the part of the reserved bearer; the SGW suspends the reserved bearer after receiving the message of the suspended bearer, and deletes the unreserved bearer (that is, the SGW deletes the unsuspended bearer, for example, the SGW deletes the GBR bearer) 3)
  • the mobility management network element of the packet domain network deletes part of the bearer (such as GBR bearer) and another part of bearer (such as non-GBR bearer) according to different bearer types, and the mobility management network element of the packet domain network indicates The SGW suspends all bearers of the user. After receiving the message of the pending bearer, the SGW deletes some bearers according to different bearer types (such as GBR bearers).
  • a reserved bearer suspension e.g., non-GBR bearers
  • the SGW required the mobility management network element has the same bearer processing rule;
  • Mode 4 The mobility management network element of the packet domain network deletes a part of the bearer according to different bearer types, and reserves another part of the bearer, instructing the SGW to delete the part of the reserved bearer that is reserved and unreserved.
  • Mode 4) may be processed by one of the following four methods: requesting a message, the update bearer request message includes the identifier of the suspended bearer and the identifier of the deleted bearer, and the state of the bearer, for the suspended bearer, the bearer The status is set to hang. For deleted bearers, the status of the bearer is set to Delete.
  • the serving gateway entity After receiving the update bearer request message, the serving gateway entity suspends the bearer corresponding to the identifier of the suspended bearer, and deletes the bearer corresponding to the bearer identifier of the deleted state.
  • the message is updated in the update bearer request message.
  • the list of identifiers of the suspended bearers and the list of identifiers of the deleted bearers; when the serving gateway entity receives the update bearer request message, the identifier of the suspended bearer The bearer corresponding to the list is suspended, and the bearer corresponding to the deleted bearer identifier list is deleted.
  • the message is sent, and the pending bearer request message includes the suspended bearer identifier list and the deleted bearer identifier list, and the service gateway entity receives After the bearer request message is suspended, the bearer status of the suspended bearer identifier list is set to be suspended, and the bearer corresponding to the deleted bearer identifier list is deleted.
  • the message is sent, and the suspended bearer request message carries the UE.
  • the service gateway entity deletes the bearer corresponding to the deleted bearer identifier list and suspends other bearers.
  • the UE after receiving the handover instruction message Handoff Direction sent by the CDMA2000 lx access network, the UE prepares to switch to the CDMA2000 lx network after the UE completes the CDMA2000 lx network access establishment through the packet domain network. Initiating a release process, sending an RRC release request message to the access network of the packet domain network, to indicate to the network side that the UE may process the resources in the packet domain network, and the access network of the packet domain network receives the RRC sent by the UE. After the release request message is sent, the release request message is sent to the mobility management network element of the packet domain network, so that the mobility management network element of the packet domain network processes the resources of the UE in the packet domain network.
  • FIG. 8 is a signaling flowchart of another embodiment of a resource processing method for a UE to switch from a packet domain network to a CDMA2000 lx network. As shown in FIG. 8, the method includes:
  • Steps 81 to 87 correspond to the steps 71 to 77 of the previous embodiment.
  • Step 88 After receiving the downlink CDMA2000 tunnel message sent by the mobility management network element of the packet domain network, the access network of the packet domain network encapsulates the Handoff Direction message in the message, that is, the access network of the packet domain network receives the packet.
  • the release message is sent to the mobility management network element of the packet domain network.
  • SI UE SI UE Context Release Request
  • Iu Release Request Iu Release Request
  • the access network of the packet domain network carries the indication information in the release request message, and is used to indicate that the mobility management network element of the packet domain network has the release request due to the UE handover.
  • the access network of the packet domain network carries a "Cause” cell in the release request message, and sets the cell value to "Handover Triggered” or the access network of the packet domain network carries in the release request message.
  • Steps 89 to 813 correspond to the steps 710 to 714 in the previous embodiment.
  • the access network of the packet domain network implements the handover guidance message sent by the mobility management network element of the packet domain network, determines that the UE performs handover, and actively initiates a release request message, so as to facilitate mobility management of the packet domain network.
  • the network element processes the resources of the UE in the packet domain network.
  • FIG. 9 is a signaling flowchart of still another embodiment of a resource processing method for a UE to switch from a packet domain network to a CDMA2000 lx network. As shown in FIG. 9, the method includes:
  • Steps 91 to 97 correspond to the steps 71 to 77 in the above embodiment.
  • Step 98 to step 91 1 correspond to steps 711 to 714 in the above embodiment.
  • Step 912 After the UE switches to the CDMA 2000 lx network, the lx CS MSC receives the allocation complete message Assignment complete (shown in the figure) sent by the lx CS Access network element, or the lx handover complete message sent by the lx CS Access network element (in the figure) After the replacement assignment message is not displayed, the lx CS MSC network element sends a clear command message Clear Command to IWS.
  • Step 913 After receiving the clear command message Clear Command, the IWS sends a handover complete message Handoff Complete to the mobility management network element of the packet domain network.
  • Step 914 After receiving the handover complete message sent by the IWS, the mobility management network element of the packet domain network determines that the UE performs handover, and manages resources of the UE in the packet domain network. The manner in which the mobility management network element of the packet domain network manages the resources of the UE in the packet domain network The processing in step 710 is the same, and will not be repeated here.
  • the mobility management network element of the packet domain network determines, according to the handover completion message sent by the received circuit domain network, in the process of processing the UE switching from the packet domain network to the circuit domain network.
  • the UE successfully switches to the circuit domain network, actively initiates processing of resources of the UE in the packet domain network, and implements processing of resources of the UE in the packet domain network.
  • the switching solution function IWS network element is an independent network element, and its main function is to implement the lx CS signaling exchange forwarding function, and encapsulate the lx CS signaling from the lx CS MSC by grouping.
  • the domain network sends the signal to the UE; or the UE sends the encapsulated lx CS signaling to the IWS through the packet domain network, and the IWS forwards the encapsulated lx CS signaling to the lx CS MSC.
  • the function of the IWS network element can be integrated with other network elements in the network to form an integrated network element.
  • the GPP mobility management network element in step 912 and step 913 The handover completion message sent by the receiving circuit domain network may also be in the following forms:
  • the IWS/lx CS Access network element receives the lx handover complete message sent by the UE, and sends a handover complete message Handoff Complete or an assignment completion message Assignment complete to the packet domain network.
  • the handover completion message or the assignment completion message is only the difference of the message name, and the functions are consistent. Both indicate that the handover is completed, and can be uniformly understood as the handover completion message.
  • the lx CS MSC network element sends a clear command message to the lx CS IWS/packet after receiving the handover complete message sent by the lx CS Access network element.
  • the mobility management network element of the domain network after the integrated network element receives the clear command message, the switching solution function in the integrated network element can convert it into a handover complete message, or the integrated network element receives the message. After clearing the command message, it can be understood that the handover completion message is received for subsequent processing.
  • the lx CS IWS/lx CS MSC network element receives the handover complete message sent by the lx CS Access network element, and sends a handover complete message to the mobility management of the packet domain network.
  • Network element The foregoing describes in detail the processing method of the UE in the packet domain network in the process of the UE switching from the packet domain network to the circuit domain network in the embodiment of the present invention. The following describes the mobility management network element in the communication system and the packet domain network.
  • FIG. 10 is a structural diagram of an embodiment of a communication system according to the present invention.
  • a mobility management network element 101 including a packet domain network and an access network 103 of a packet domain network, when the user equipment UE is from a packet domain network
  • the access network 103 of the packet domain network is configured to send a release request message to the mobility management network element of the packet domain network
  • the mobility management network element 101 of the packet domain network is configured to receive the packet domain network.
  • a release request message sent by the access network processes the resources of the UE in the packet domain network.
  • the mobility management network element of the packet domain network may be an SGSN; for the E-UTRAN network, the mobility management network element of the packet domain network may be an MME, and correspondingly, an access network of the packet domain network, Corresponding to access networks in various packet domain networks.
  • the access network of the packet domain network can receive the mobile of the packet domain network.
  • the release request message is sent to the mobility management network element of the packet domain network, and the mobility management of the packet domain network may be performed after receiving the RRC release request message sent by the user terminal UE.
  • the network element sends a release request message, and the RRC release request message may be sent by the UE to the access network of the packet domain network after receiving the handover guidance message.
  • the RRC release request message may further include indication information indicating that the RRC release request is caused by the UE switching to the circuit domain network, for example, the UE carries a "Cause” cell in the message, and setting the cell value to "Handover Triggered” (Handover Trigger) "Or the UE carries a "Handover Triggered Indicator” cell in this message.
  • the access network of the packet domain network can also be used to send to the mobility management network element of the packet domain network.
  • the request message carries the indication information, where the indication information is used to indicate that the release request is caused by the UE switching to the circuit domain network, such as carrying a "Cause” cell in the release request message, and setting the cell value to "Handover Triggered ( "Handover Trigger Indicator” in the release request message.
  • the mobility management network element of the packet domain network processes the resources of the UE in the packet domain network, and may use one of the following methods:
  • the mobility management network element of the packet domain network initiates a user implicit separation processing procedure to separate the UE from the packet domain network.
  • the simultaneous bearer separated by the UE from the network is also deleted from the packet domain network.
  • the mobility management network element of the packet domain network does not separate the UE (retains the MM context of the UE), and for the GBR bearer, the mobility management network element of the packet domain network initiates the bearer deletion process deletion; for the non-GBR bearer, the packet domain network The mobility management network element retains these bearers, but instructs the SGW to suspend these bearers (Suspend).
  • the mobility management network element of the packet domain network may have the following method instructing the SGW to suspend the bearer:
  • the mobility management network element of the packet domain network sends an update bearer request message to the SGW.
  • the update bearer request message carries the identity of the bearer and the status of the bearer.
  • the mobility management network element of the packet domain network sets the status of the bearer to "Suspend".
  • the mobility management network element of the packet domain network sends a Suspend Bearer Request message to the SGW.
  • the bearer carrying the request message carries the identifier of the bearer.
  • the SGW sets the status of this bearer to "Suspend" after receiving the bearer pending indication.
  • the subsequent SGW will not trigger paging after receiving the downlink data packet on this bearer.
  • the SGW can cache these downstream packets.
  • the SGW may also release the resource between the SGW and the downlink user plane network element used for suspending the bearer (for example, the SGW releases the downlink TEID used by the suspended bearer).
  • the SGW releases the SGW and the eNodeB. Resources; for UTRAN networks, the SGW releases resources between the SGW and the RNC or 3G SGSN; for GERAN For the network, the SGW releases the resources between the SGW and the 2G SGSN.
  • the mobility management network element of the packet domain network does not separate the UE (retains the MM context of the UE).
  • the mobility management network element of the packet domain network initiates the bearer deletion process deletion; for other bearers, the movement of the packet domain network
  • the sex management network element retains these bearers, but instructs the SGW to suspend these bearers.
  • the mobility management network element of the packet domain network does not separate the UE (retaining the MM context of the UE). For the bearer, the mobility management network element of the packet domain network reserves these bearers, but instructs the SGW to suspend the bearers.
  • the mobility management network element of the packet domain network may have the following method to instruct the SGW to suspend the bearer:
  • the mobility management network element of the packet domain network sends an update bearer request message to the SGW.
  • the update bearer request message carries the identity of the bearer and the status of the bearer.
  • the mobility management network element of the packet domain network sets the status of the bearer to "Suspend".
  • the mobility management network element of the packet domain network sends an update bearer request message to the SGW.
  • the message carries the identity of the UE and the status of the bearer.
  • the mobility management network element of the packet domain network sets the status of the bearer to "Suspend", and the serving gateway entity SGW sets the state of all bearers of the UE to be suspended.
  • the mobility management network element of the packet domain network sends a Suspend Bearer Request message to the SGW.
  • the bearer carrying the request message carries the identifier of the bearer.
  • the serving gateway entity SGW sets the state of the bearer corresponding to the bearer identifier to be suspended.
  • the mobility management network element of the packet domain network sends a Suspend Bearer Request message to the SGW, where the message carries the identifier of the UE, and the SGW receives the bearer bearer request message and then sets the status of all bearers of the UE. Set to hang.
  • the mobility management network element of the packet domain network may also instruct the SGW to suspend all the bearers of the user; the mobility management network element of the packet domain network retains a part of the bearers (such as non-GBR bearers) according to different bearer types, and Another part of the bearer (GBR bearer or VOIP bearer) initiates Delete the deletion process; or,
  • the mobility management network element of the packet domain network deletes part of the bearer according to different bearer types, and reserves another part of the bearer (such as a non-GBR bearer), instructing the SGW to suspend the part of the reserved bearer; the SGW receives the suspended bearer.
  • the reserved bearer is deleted, and the unreserved bearer is deleted (that is, the SGW deletes the unsuspended bearer, for example, the SGW deletes the GBR bearer or the VOIP bearer); or
  • the mobility management network element of the packet domain network deletes part of the bearer according to different bearer types, and reserves another part of the bearer (such as a non-GBR bearer).
  • the mobility management network element of the packet domain network instructs the SGW to suspend the bearer (as described above).
  • the mobility management network element of the packet domain network sends a suspension bearer request message to the serving gateway entity, where the pending bearer request message carries the identifier of the UE, and the SGW retains the message after receiving the suspended bearer message.
  • the bearer is suspended (for example, the non-GBR bearer), and the unreserved bearer is deleted (that is, the SGW deletes the unsuspended bearer, for example, the SGW deletes the GBR bearer or the VOIP bearer); or
  • the mobility management network element of the packet domain network deletes a part of the bearer according to different bearer types, and reserves another part of the bearer, and instructs the SGW to delete the reserved bearer and the unreserved bearer.
  • the following four methods can be used for processing: requesting a message, the update bearer request message includes the identifier of the suspended bearer and the identifier of the deleted bearer, and the status of the bearer.
  • the state of the bearer is set to hang. .
  • the status of the bearer is set to Delete.
  • the serving gateway entity After receiving the update bearer request message, the serving gateway entity suspends the bearer corresponding to the identifier of the suspended bearer, and deletes the bearer corresponding to the bearer identifier of the deleted state.
  • the message is updated in the update bearer request message.
  • Bearer deletion The pending bearer request message includes the identifier of the suspended bearer and the identifier of the deleted bearer.
  • the serving gateway entity After receiving the bearer request message, the serving gateway entity sets the state of the bearer corresponding to the suspended bearer identifier to Suspend, delete the bearer corresponding to the deleted bearer ID list.
  • the request message, the pending bearer request message carries the identifier of the UE and the identifier of the deleted bearer.
  • the serving gateway entity After receiving the bearer request message, the serving gateway entity deletes the bearer corresponding to the deleted bearer identifier list, and the other bearer is deleted. Hang up.
  • the communication system may further comprise a circuit domain network, configured to interact with a mobility management network element of the packet domain network, provide necessary radio resources for the UE handover, and perform mobility management to the packet domain network after the UE handover is completed.
  • the network element sends a handover complete message
  • the mobility management network element of the packet domain network sends the handover complete message to the UE through the access network of the packet domain network.
  • the access network of the packet domain network sends a release request message to the mobility management network element of the packet domain network, and the mobility management network element of the packet domain network receives the access of the packet domain network.
  • the UE processes the resources in the packet domain network, so that in the process of the UE switching from the packet domain network to the CDMA2000 1 x network, the resources of the UE in the packet domain network are implemented. deal with.
  • FIG. 11 is a structural diagram of another embodiment of a communication system according to the present invention.
  • a mobility management network element 111 and a circuit domain network 113 including a packet domain network are switched when the user equipment UE switches from the packet domain network to the circuit.
  • the circuit domain network 113 is configured to send a handover complete message to the mobility management network element of the packet domain network;
  • the mobility management network element 111 of the packet domain network is configured to receive the handover complete message sent by the circuit domain network, and After receiving the handover complete message, the UE processes the resources in the packet domain network.
  • the mobility management network element of the packet domain network may be an SGSN; for the E-UTRAN network, the mobility management network element of the packet domain network may be an MME, a circuit domain network
  • the network can be a CDMA 2000 lx network or a GSM circuit domain network.
  • the mobility management network element of the packet domain network is in the UE.
  • the resources in the packet domain network are processed.
  • the communication system may further include an exchange resolution function network element IWS between the circuit domain network and the packet domain network, and the circuit domain network may further include an access network element and a mobility management network element, for example, in CDMA 2000 lx.
  • the access network element may be an lx CS Access network element
  • the mobility management network element may be an lx CS MSC.
  • the main function of the IWS network element is to implement the lx CS signaling exchange forwarding function, and encapsulate the lx CS signaling from the lx CS MSC and send it to the UE through the packet domain network; or the UE encapsulates the packet through the packet domain network.
  • the lx CS signaling is sent to the IWS, and the IWS forwards the encapsulated lx CS signaling to the lx CS MSC.
  • the IWS can be an independent network element, or can be integrated with other network elements in the network to form an integrated network element, which can be divided into several cases:
  • the integrated network element is configured to send the handover complete message to the mobility management of the packet domain network after receiving the handover complete message sent by the UE.
  • the message If the mobility resolution function network element and the mobility management network element of the packet domain network are integrated, the message; the mobility management network element of the circuit domain network is used to complete the handover of the access network element received by the circuit domain network. After the message, send a clear command message to the integrated network element;
  • the access network element of the circuit domain network is configured to send a handover complete message to the mobility management network element of the circuit domain network;
  • the mobility management network element is configured to send a clear command message to the switch resolution function network element after receiving the handover complete message sent by the access network element of the circuit domain network;
  • the switch resolution function network element is used to receive the circuit domain After the clearing command message sent by the mobility management network element of the network, the handover complete message is sent to the mobility management network element of the packet domain network.
  • the integrated network element receives the handover completion message sent by the access network element of the circuit domain network, and sends a handover complete message to the packet domain.
  • Network mobility management network element If the mobility resolution function network element and the mobility management network element of the circuit domain network are integrated, the integrated network element receives the handover completion message sent by the access network element of the circuit domain network, and sends a handover complete message to the packet domain.
  • the mobility management network element of the packet domain network After receiving the handover complete message, the mobility management network element of the packet domain network processes the resources of the UE in the packet domain network in the same manner as the mobility management network element of the packet domain network in the previous embodiment. No longer repeat.
  • FIG. 12 is a structural diagram of an embodiment of a mobility management network element in a packet domain network according to the present invention.
  • the method includes a receiving unit 121 and a resource processing unit 123, where the receiving unit 121 is used in the user equipment UE.
  • the resource processing unit 123 is configured to receive the packet domain at the receiving unit 121.
  • the UE processes the resources in the packet domain network.
  • the mobility management network element of the packet domain network may be an SGSN; for the E-UTRAN network, the mobility management network element of the packet domain network may be an MME.
  • FIG. 13 is a structural diagram of another embodiment of a mobility management network element in a packet domain network according to the present invention. As shown in FIG. 13, the receiving unit 121 and the resource processing unit 123 are provided on the basis of the embodiment corresponding to FIG.
  • the receiving unit 121 may include a first receiving module 1211 and/or a second receiving module 1213, where
  • the first receiving module 1211 is configured to receive, in the process of the user equipment UE switching from the packet domain network to the circuit domain network, a release request message sent by the access network of the packet domain network, where the release request message may include indication information for indicating release The request is caused by the UE switching to the circuit domain network. For example, if the release request message carries a "Cause" cell, the cell value is set to "Handover Triggered" or the release request message carries a "Handover".
  • the resource processing unit 123 can be notified to process the resources of the UE in the packet domain network.
  • the second receiving module 1213 is configured to receive a handover complete message sent by the circuit domain network during the process of the user equipment UE switching from the packet domain network to the circuit domain network, and specifically includes the following situations:
  • the second receiving module 1213 is configured to receive the access network element sent by the circuit domain network. Switch completion message;
  • the second receiving module 1213 is configured to receive the mobility management network element of the circuit domain network. Clear command message sent;
  • the second receiving module 1213 is configured to receive a handover complete message sent by the switching solution function network element, where the switching solution function network element is receiving After the clear command message sent by the circuit domain network mobility management network element, the second receiving module 1213 that sends the handover complete message;
  • the second receiving module 1213 is configured to receive the mobility management network element of the circuit domain network.
  • the handover completion message sent.
  • the second receiving module 1213 may notify the resource processing unit 123 to process the resources of the UE in the packet domain network.
  • the resource processing unit 123 may specifically include one or a combination of the following modules:
  • the first resource processing module 1231 is configured to initiate a user implicit separation processing procedure, and separate the UE from each of the packet domain networks;
  • the second resource processing module 1233 is configured to reserve all bearers of the UE in the packet domain network, and instruct the serving gateway entity to suspend the bearer;
  • the third resource processing module 1235 is configured to: delete, according to different bearer types, a bearer initiation bearer deletion process corresponding to a part of the bearer type; and, for another bearer type corresponding to the bearer type, instruct the serving gateway entity to suspend the reserved bearer, for example,
  • the third resource processing module 1235 initiates the bearer deletion process deletion; for the non-GBR bearer third resource processing module 1235, the non-GBR bearer is reserved, indicating that the serving gateway entity suspends the non-GBR bearer; or for the VoIP bearer
  • the third resource processing module 1235 initiates a bearer deletion process deletion.
  • the third resource processing module 1235 reserves other bearers than the VoIP bearer, and instructs the serving gateway entity to suspend other bearers other than the VoIP bearer.
  • the voice bearer of the original UE in the packet domain network can be released in time, and other non-voice bearers are reserved, and the suspension process is performed, which is beneficial for the UE to continue to be the user after returning to the packet domain network again. Provide business without interruption.
  • the resource processing unit may further include one or a combination of the following modules, and may also include various combinations of the following modules and the foregoing first resource processing module, second resource processing module, or third resource processing module.
  • a fourth resource processing module configured to delete part of the bearer according to different bearer types, and reserve another part of the bearer, and instruct the serving gateway entity to suspend the reserved bearer;
  • the fifth resource processing module is configured to instruct the serving gateway entity to suspend all the bearers of the user, and retain part of the bearer according to different bearer types, and delete the other bearer initiating bearer deletion process;
  • the sixth resource processing module is configured to indicate The service gateway entity suspends all bearers of the user, and deletes part of the bearer according to different bearer types, and retains another part of the bearer;
  • a seventh resource processing module configured to delete part of the bearer according to different bearer types, and reserve another part of the bearer, and indicate that the serving gateway entity reserves the reserved bearer pending and unreserved bearer deletion resource processing unit 123, and further includes the following module.
  • One or a combination a first bearer suspend processing module 1237, a second bearer suspend processing module 1239, a third bearer suspend processing module 1241, and a fourth bearer suspend processing module 1243.
  • the second resource processing module 1233 or the third resource processing module 1235 or the fourth resource processing module may send the identifier of the bearer that needs to be suspended to the first bearer.
  • the bearer processing module 1243 is configured to indicate that all the bearers of the UE are suspended.
  • the first bearer suspension processing module 1237 is configured to receive the identifier of the bearer that needs to be suspended, and send an update bearer request message to the serving gateway entity, and update the bearer request message.
  • the status of the bearer that needs to be suspended and the status of the bearer are set, and the status of the bearer is set to hang;
  • the second bearer suspending processing module is configured to receive the identifier of the bearer that needs to be suspended, and send a suspend bearer request message to the serving gateway entity, and the suspend bearer request message includes the identifier of the bearer that needs to be suspended, and suspends the bearer request message. Instructing the serving gateway entity to set the state of the bearer corresponding to the bearer identifier to be suspended;
  • the third bearer suspension processing module is configured to receive an identifier of the UE that needs to be suspended, and send an update bearer request message to the serving gateway entity, where the update bearer request message includes the identifier of the UE and the state of the bearer, and the state of the bearer is set to be suspended.
  • the update bearer request message is used to instruct the serving gateway entity to set the state of all bearers of the UE to be suspended;
  • the fourth bearer suspending processing module is configured to receive the identifier of the UE that needs to be suspended, and send a suspend bearer request message to the serving gateway entity, where the suspend bearer request message includes the identifier of the UE, and the suspend bearer request message is used to indicate the serving gateway.
  • the entity sets the state of all bearers of the UE to hang.
  • the seventh resource processing module may further include one or a combination of the following subunits:
  • the first processing sub-unit is configured to send an update bearer request message to the serving gateway entity, where the update bearer request message includes the identifier of the suspended bearer and the identifier of the deleted bearer, and the status of the bearer, and the status of the bearer for the suspended bearer Set to hang. For the deleted bearer, the status of the bearer is set to delete.
  • a second processing sub-unit configured to send an update bearer request message to the serving gateway entity, where the update bearer request message includes a list of identifiers of the suspended bearers and a list of identifiers of the deleted bearers;
  • a third processing sub-unit configured to send a pending bearer request message to the serving gateway entity, where the bearer request message includes a list of the suspended bearer identifiers and the deleted bearer identifier list;
  • a fourth processing sub-unit configured to send a pending bearer request message to the serving gateway entity, and suspend the bearer request message carrying the identifier of the UE and the identifier list of the deleted bearer.
  • the subsequent serving gateway entity SGW will not trigger paging after receiving the downlink data packet of the suspended bearer, and the SGW may cache the downlink data packets, and the SGW may also release the suspension.
  • Carrying resources between the used SGW and the downlink user plane network element, for example, releasing the downlink TEID used by the suspended bearer, for example, for the E-UTRAN network the SGW releases the resources between the SGW and the eNodeB; for the UTRAN network
  • the SGW releases the resources between the SGW and the RNC or the 3G SGSN; for the GERAN network, the SGW releases the resources between the SGW and the 2G SGSN.
  • the mobility management network element in the packet domain network provided by the embodiment of the present invention the receiving unit
  • the resource processing unit 123 receives at the receiving unit 121.
  • the UE processes the resources in the packet domain network, so that the UE is switched to the circuit by the packet domain network.
  • the processing of resources of the UE in the packet domain network is implemented.
  • 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 technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk, etc. includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods of various embodiments of the present invention.

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Description

资源处理的方法、 通信***和移动性管理网元
本申请要求于 2008 年 4 月 30 日提交中国专利局、 申请号为 200810067044.0、 发明名称为 "资源处理的方法、 通信***和移动性管理网 元" 的中国专利申请, 以及于 2008年 12月 17日提交中国专利局、 申请号为 200810188447.0、发明名称为"资源处理的方法、通信***和移动性管理网元" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明实施例涉及通信技术领域, 尤其涉及一种资源处理的方法、 通信系 统和移动性管理网元。 背景技术
图 1为现有技术中第三代合作伙伴计划 (3rd Generation Partnership Project, 以下简称: 3 GPP )分组域网絡和码分多路复用 (Code Division Multiple Access, 以下简称: CDMA ) 网絡中的 CDMA2000 lx网絡的互通架构图, 如图 1所示, 包 括演进的 UMTS陆地无线接入网( Evolved UMTS Terrestrial Radio Access Network, 以下简称: E-UTRAN ) , 用于实现所有与演进网絡无线有关的功能; 移动性管理 网元( Mobility Management Entity, 以下简称: MME ) , 负责控制面的移动性管 理, 包括用户上下文和移动状态管理, 分配用户临时身份标识等; 服务网关实体 ( Serving Gateway, 以下简称: SGW ) , 是 3GPP接入网絡间的用户面锚点, 终 止 E-TURAN的接口; 分组数据网絡网关实体( Packet Data Network Gateway, 以 下简称: PGW )是 3GPP接入网絡和非 3GPP接入网絡之间的用户面锚点 , 终止和 外部分组数据网絡( Packet Data Network, 以下简称: PDN ) 的接口。
UMTS陆地无线接入网( UMTS Terrestrial Radio Access Network,以下简称: UTRAN ) 、 GSM/EDGE无线接入网 ( GSM/EDGE Radio Access Network, 以下 服务通用分组无线业务支持节点 (Serving GPRS Supporting Node, 以下简称: SGSN ) , 用于实现 GPRS/UMTS网絡中路由转发、 移动性管理、 会话管理以及 用户信息存储等功能。
lx CS (电路域, Circuit Switched Domain ) Access (接入网)实现 CDMA2000 lx网絡中无线相关的功能。 lx CS MSC (移动交换中心, Mobile Switching Center ) 主要为移动用户提供移动性管理和交换功能, 并实现移动用户和移动用户之间、 移动用户和固定用户之间的互联互通。 交换解决功能 (Interworking Solution Function, 以下简称: IWS ) 实现 lx CS信令交换转发功能, 将来自 lx CS MSC的 lx CS信令封装, 通过 3GPP分组域网絡发给 UE; 或者 UE通过 3GPP分组域网絡将 封装的 lx CS信令发给 IWS, IWS转发封装的 lx CS信令到 lx CS MSC。 IWS也描 述为 lx CS IWS„
3GPP分组域网絡中的基于 IP的语音(Voice over IP, 以下简称: VoIP )业务切换 到 CDMA2000 lx网絡的技术。 图 2为现有技术中用户设备 UE的 VoIP业务从 3GPP 分组域网絡切换到 CDMA2000 lx网絡的信令流程图, 如图 2所示, 包括:
1、 在 3GPP分组域网絡中存在 VoIP会话;
2、 3GPP分组域网絡的接入网决定切换到 CDMA2000 lx网絡, 3GPP分组域 网絡的接入网可以为 E-UTRAN、 GERAN、 UTRAN;
3、 3GPP分组域网絡的接入网发送重定位指示通知 UE执行***间切换流程 处理;
4、 UE通过 3GPP 分组域网絡发送 lx Origination (发起 ) 消息到 lx CS IWS; 即 UE将 lx Origination消息发给 3GPP分组域网絡的接入网, 3GPP分组域网絡的接 入网发送上行 CDMA2000隧道消息,将 lx Origination消息封装在这个消息中,发 送到 3GPP分组域网絡的移动性管理网元,对于 GERAN/UTRAN网絡, 3GPP分组 域网絡的移动性管理网元为 SGSN; 对于 E-UTRAN网絡, 3GPP分组域网絡的移 动性管理网元为 MME。 3GPP分组域网絡的移动性管理网元收到上行 CDMA2000 隧道消息后从消息中获取 lx Origination消息, 且将 lx Origination消息发给 lx CS IWS;
5、 IWS发送 CM Service Request ( CM业务请求 ) 消息到 lx CS MSC;
6、 MSC发送 Assignment Request (分配请求) 消息到 IWS;
7、 IWS通过 3GPP分组域网絡发送切换指导 Handoff Direction消息到 UE。 即
IWS发送 Handoff Direction消息到 3 GPP分组域网絡的移动性管理网元, 3 GPP分组 域网絡的移动性管理网元发送下行 CDMA2000P迷道消息 ( Handoff Direction消息 封装在这个消息中)到 3GPP分组域网絡的接入网, 3GPP分组域网絡的接入网转 发 Handoff Direction消息到 UE;
8、 UE切换到 CDMA 1 x网絡, 执行传输通过获取 ( Traffic Channel
Acquisition, 以下简称: TCC )程序以获得传输通道;
9、 UE发送 lx切换完成消息到 CDMA2000 lx接入网;
10、 CDMA2000 lx接入网发送切换完成( Handoff Complete )消息或者分配 完成 ( Assignment Complete ) 消息到 MSC;
11、 语音呼叫在 CDMA2000 lx网絡中建立。 从上面的流程可知 , 对于现在的 3GPP分组域网絡到 CDMA2000 lx网 絡切换的机制来说,在 UE由 3GPP分组域网絡切换到 CDMA2000 lx网絡过 程中, 分组域网絡中 UE相关的资源还没有相应的处理机制, 在 UE由分组 域网絡切换到类似于 CDMA2000 lx网絡的其他电路域网絡中, 该问题同样 存在。 发明内容
有鉴于此, 本发明实施例提供了一种资源处理的方法, 以实现在用户设备 方法包括:
当用户设备 UE从分组域网絡切换到电路域网絡过程中, 分组域网絡的 移动性管理网元接收分组域网絡的接入网发送的释放请求消息或者接收电路 域网絡发送的切换完成消息后, 对 UE在分组域网絡中的资源进行处理。
通过本发明实施例提供的资源处理方法, 分组域网絡的移动性管理网元 在接收到分组域网絡的接入网发送的释放请求消息或者接收电路域网絡发送 的切换完成消息后, 即发起对 UE在分组域网絡中的资源的处理, 从而在 UE 由分组域网絡切换到电路域网絡过程中, 实现了对 UE在分组域网絡中的资 源的处理。
本发明实施例还提供了一种通信***, 以实现在用户设备 UE从分组域网絡 分组域网絡的移动性管理网元和分组域网絡的接入网, 当用户设备 UE 从分组域网絡切换到电路域网絡过程中, 分组域网絡的接入网用于向分组域 网絡的移动性管理网元发送释放请求消息, 分组域网絡的移动性管理网元用 于接收分组域网絡的接入网发送的释放请求消息, 对 UE在分组域网絡中的 资源进行处理。
通过本发明实施例提供的通信***, 分组域网絡的接入网向分组域网絡 的移动性管理网元发送释放请求消息, 分组域网絡的移动性管理网元在接收 到分组域网絡的接入网发送的释放请求消息后, 即发起对 UE在分组域网絡 中的资源的处理, 从而在 UE由分组域网絡切换到电路域网絡过程中, 实现 了对 UE在分组域网絡中的资源的处理。
本发明实施例还提供了另一种通信***, 以实现在用户设备 UE从分组域网 分组域网絡的移动性管理网元和电路域网絡, 当用户设备 UE从分组域 网絡切换到电路域网絡过程中, 所述电路域网絡用于向分组域网絡的移动性 管理网元发送切换完成消息; 所述分组域网絡的移动性管理网元用于接收电 路域网絡发送的切换完成消息, 并在接收到所述切换完成消息后, 对 UE在 分组域网絡中的资源进行处理。 通过本发明实施例提供的通信***, 电路域网絡向分组域网絡的移动性 管理网元发送切换完成消息, 分组域网絡的移动性管理网元在接收到电路域 网絡发送的切换完成消息后, 即发起对 UE在分组域网絡中的资源的处理, 从而在 UE由分组域网絡切换到电路域网絡过程中, 实现了对 UE在分组域 网絡中的资源的处理。
本发明实施例还提供了一种分组域网絡中的移动性管理网元, 以实现在用 户设备 UE从分组域网絡切换到电路域网絡过程中对 UE在分组域网絡中资源的 处理, 所述移动性管理网元包括:
接收单元和资源处理单元, 其中, 接收单元用于在用户设备 UE从分组 域网絡切换到电路域网絡过程中, 接收分组域网絡的接入网发送的释放请求 消息或者接收电路域网絡发送的切换完成消息; 资源处理单元用于在所述接 收单元接收到分组域网絡的接入网发送的释放请求消息或者接收到电路域网 絡发送的切换完成消息后, 对 UE在分组域网絡中的资源进行处理。
通过本发明实施例提供的移动性管理网元, 接收单元在用户设备 UE从 分组域网絡切换到电路域网絡过程中, 接收分组域网絡的接入网发送的释放 请求消息或者接收电路域网絡发送的切换完成消息, 资源处理单元在所述接 收单元接收到分组域网絡的接入网发送的释放请求消息或者接收到电路域网 絡发送的切换完成消息后, 即发起对 UE在分组域网絡中的资源的处理, 从 而在 UE由分组域网絡切换到电路域网絡过程中, 实现了对 UE在分组域网 絡中的资源的处理。 附图说明
图 1 为现有技术中 3GPP分组域网絡和 CDMA网絡中的 CDMA2000 lx 网絡的互通架构图;
图 2为现有技术中用户设备 UE的 VoIP业务从 3GPP分组域网絡切换到
CDMA2000 lx网絡的信令流程图; 图 3为本发明资源处理方法的一个实施例的流程图;
图 4为本发明资源处理方法的另一个实施例的流程图;
图 5为本发明资源处理方法的再一个实施例的流程图;
图 6为本发明资源处理方法的又一个实施例的流程图;
图 7为 UE从分组域网絡切换到 CDMA2000 lx网絡过程中资源处理方法 的一个实施例的信令流程图;
图 8为 UE从分组域网絡切换到 CDMA2000 lx网絡过程中资源处理方法 的另一个实施例的信令流程图;
图 9为 UE从分组域网絡切换到 CDMA2000 lx网絡过程中资源处理方法 的再一个实施例的信令流程图;
图 10为本发明通信***的一个实施例的结构图;
图 11为本发明通信***的另一个实施例的结构图;
图 12为本发明分组域网絡中的移动性管理网元的一个实施例的结构图; 图 13 为本发明分组域网絡中的移动性管理网元的另一个实施例的结构 图。 具体实施方式
在本发明 实施例中 , 分组域网絡的移动性管理网元, 对于 线业务支持节点 SGSN; 对于 E-UTRAN 网絡, 分组域网絡的移动性管理网 元为移动性管理网元 MME。
本发明实施例中 UE 从分组域网絡切换到的电路域网絡, 可以为 CDMA2000 lx网絡, 也可以为 GSM网絡或者其他电路域网絡。
图 3为本发明资源处理方法的一个实施例的流程图, 如图 3所示, 该方 法包括:
步骤 31、 当用户设备 UE从分组域网絡切换到电路域网絡过程中, 分组 域网絡的移动性管理网元接收分组域网絡的接入网发送的释放请求消息; 步骤 32、 分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进 行处理。
图 4为本发明资源处理方法的另一个实施例的流程图, 如图 4所示, 该 方法包括: 指导消息 Handoff Direction;
步骤 42、 分组域网絡的接入网在收到切换指导消息后, 向分组域网絡的 移动性管理网元发送释放请求消息;
步骤 43、 分组域网絡的移动性管理网元接收分组域网絡的接入网发送的 释放请求消息;
步骤 43、 分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进 行处理。
该实施例实现了分组域网絡的接入网根据收到了分组域网絡的移动性管 理网元发送的切换指导消息, 确定 UE进行了切换, 主动发起释放请求消息, 以便分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进行处理。
图 5为本发明资源处理方法的再一个实施例的流程图, 如图 5所示, 该 方法包括: 指导消息 Handoff Direction发送至 UE;
步骤 52、 UE在接收到该切换指导后, 向分组域网絡的接入网发送无线 资源控制( Radio Resource Control, 以下简称: RRC )释放请求消息; 该 RRC 释放请求消息可用于向分组域网絡的接入网指示分组域网絡的接入网释放 RRC连接; UE发送的 RRC释放请求消息中还可以包含有指示信息, 该指示 信息指示 RRC释放请求的原因为 UE切换到电路域网絡, 如 UE在这个消息 中携带一个 "Cause" 信元, 设置这个信元值为 "Handover Triggered (切换 触发) " , 或者 UE在这个消息中携带一个 "Handover Triggered Indicator
(切换触发指示) " 信元。
步骤 53、 分组域网絡的接入网在收到 RRC释放请求消息后, 向分组域 网絡的移动性管理网元发送释放请求消息;
步骤 54、 分组域网絡的移动性管理网元接收分组域网絡的接入网发送的 释放请求消息;
步骤 55、 分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进 行处理。
该实施例实现了 UE在收到网絡侧发送的切换指导消息 Handoff Direction 后, 即当 UE通过分组域网絡完成电路域网絡接入建立后, 准备切换到电路 域网絡时, 主动发起释放流程 , 向分组域网絡的接入网发送 RRC释放请求消 息, 以向网絡侧指示可以对 UE在分组域网絡中的资源进行处理, 分组域网 絡的接入网在接收到 UE发送的 RRC释放请求消息后,将释放请求消息发送 至分组域网絡的移动性管理网元,实现了分组域网絡的移动性管理网元对 UE 在分组域网絡中的资源进行处理。
在以上实施例的步骤 31、 步骤 42以及步骤 53中, 分组域网絡的接入网 向分组域网絡的移动性管理网元发送的释放请求消息中,可以包括指示信息, 该指示信息指示该释放请求的原因为 UE切换到电路域网絡, 用于指示该释 放请求是由于 UE切换到电路域网絡导致的, 例如, 分组域网絡的接入网在 释放请求消息中可以携带一个 "Cause"信元,且设置这个信元值为 "Handover Triggered (切换触发) " 或者分组域网絡的接入网在释放请求消息中可以携 带一个 "Handover Triggered Indicator (切换触发指示) " 信元。
分组域网絡的移动性管理网元收到分组域网絡的接入网发送的释放请求 消息后如果发现消息中携带指示信息指示该释放请求是由于 UE切换到电路 域网絡导致的, 则分组域网絡的移动性管理网元对 UE在分组域网絡中的资 源进行处理。 图 6为本发明资源处理方法的又一个实施例的流程图, 如图 6所示, 该 方法包括:
步骤 61、 当用户设备 UE从分组域网絡切换到电路域网絡过程中, 分组 域网絡的移动性管理网元接收电路域网絡发送的切换完成消 , ¾;
步骤 62、 分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进 行处理。
步骤 61中,分组域网絡的移动性管理网元接收电路域网絡发送的切换完 成消息根据具体的网絡设备的组成形式, 可以具体包括以下几种情况:
如果电路域网絡和分组域网絡之间的交换解决功能网元 IWS和电路域网 絡的接入网元集成在一起, 则电路域网絡的接入网元收到 UE发送的切换完 成消息后发送切换完成消息到分组域网絡的移动性管理网元; 或者
如果电路域网絡和分组域网絡之间的交换解决功能网元和分组域网絡的 移动性管理网元集成在一起, 则电路域网絡的移动性管理网元收到电路域网 絡的接入网元发送的切换完成消息后发送清除命令消息到分组域网絡的移动 性管理网元, 这种情况下, 分组域网絡的移动性管理网元在收到的清除命令 消息后, 分组域网絡的移动性管理网元中的交换解决功能可以将其转换为切 换完成消息, 或者分组域网絡的移动性管理网元在收到清除命令消息后即可 以理解为收到了切换完成消息, 以进行后续处理; 或者
如果电路域网絡和分组域网絡之间的交换解决功能为独立网元, 则电路 域网絡的移动性管理网元收到电路域网絡的接入网元发送的切换完成消息后 发送清除命令消息到交换解决功能网元, 该交换解决功能网元发送切换完成 消息到分组域网絡的移动性管理网元; 或者
如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡的 移动性管理网元集成在一起, 则分组域网絡的移动性管理网元接收电路域网 絡的移动性管理网元发送的切换完成消息。
以 CDMA2000 1 X网絡为例, 则电路域网絡的移动性管理网元可以为 1 x CS MSC。
该实施例中, 分组域网絡的移动性管理网元在处理 UE从分组域网絡切 换到电路域网絡过程中, 根据收到的电路域发送的切换完成消息, 确定 UE 成功切换到了电路域网絡, 主动发起对 U E在分组域网絡中资源的处理。
在以上实施例的步骤 32、 步骤 44、 步骤 55、 步骤 62中, 分组域网絡的 移动性管理网元对 UE在分组域网絡中的资源可以釆取以下方式之一进行处 理:
分组域网絡的移动性管理网元发起用户隐式分离 (即网絡侧将 UE从网 絡侧分离后无需发送 Detach消息通知 UE分离) 处理流程, 将 UE从分组域 网絡中分离; 或者
分组域网絡的移动性管理网元不发起分离 UE的操作, 保留 UE在分组 域网絡中的所有承载, 指示服务网关实体将承载挂起; 或者
分组域网絡的移动性管理网元不发起分离 UE的操作, 根据承载类型的 不同, 将一部分承载发起承载删除流程删除, 保留另一部分承载, 指示服务 网关实体将保留的这部分承载挂起, 例如, 对于保证比特率( Guaranteed Bit Rate, 以下简称: GBR )承载, 分组域网絡的移动性管理网元发起承载删除 流程删除;对于非保证比特率( non Guaranteed Bit Rate , 以下简称: non-GBR ) 承载, 分组域网絡的移动性管理网元保留 non-GBR承载, 指示服务网关实体 将 non-GBR承载挂起; 对于 GBR承载需要网絡侧分配专有的网絡资源, 而 non-GBR 载不需要网絡侧分配专有的网絡资源, 可以和其他 载共享网絡 资源, 这样, 由于及时删除了 GBR承载, 可以把专有的网絡资源及时释放, 而其他可以与其它承载共享的承载, 由于不会造成网絡资源浪费, 因此进行 挂起处理; 或者
对于 VoIP承载, 分组域网絡的移动性管理网元发起承载删除流程删除; 对于 VoIP承载以外的其它承载, 分组域网絡的移动性管理网元保留 VoIP承 载以外的其它承载, 指示服务网关实体将 VoIP承载以外的其它承载挂起, 这样对于原来 UE在分组域网絡中的语音承载就可以被及时的释放掉, 而保 留其他非语音承载, 并进行挂起处理, 这样有利于当 UE再次回到分组域网 絡中后, 可以继续为用户不间断的提供业务。
在本发明的实施例中, 当分组网絡的移动性管理网元根据承载类型的不 同, 需要将一部分承载删除, 保留另一部分承载时, 还可以釆用以下方式之
1 )分组域网絡的移动性管理网元可以指示 SGW将用户的所有承载挂起; 分组域网絡的移动性管理网元根据承载类型的不同, 保留一部分承载 (如 non-GBR承载) , 将另一部分承载 ( GBR承载)发起承载删除流程删除; 2 )分组域网絡的移动性管理网元根据承载类型的不同, 将一部分承载删 除(如 GBR承载), 保留另一部分承载(如 non-GBR承载) , 指示 SGW将 保留的这部分承载挂起; SGW收到挂起承载的消息后挂起保留的承载, 删除 未保留的承载 (即 SGW将未挂起的承载删除, 如 SGW将 GBR承载删除 ); 3 )分组域网絡的移动性管理网元根据承载类型的不同, 将一部分承载删 除(如 GBR承载) , 保留另一部分承载 (如 non-GBR承载) , 分组域网絡 的移动性管理网元指示 SGW挂起用户的所有承载, SGW收到挂起承载的消 息后, 根据承载类型的不同, 将一部分承载删除(如 GBR承载) , 将保留 的承载挂起(如 non-GBR承载) ; 实行本方式时, 要求 SGW与移动性管理 网元具有相同的承载处理规则;
4 )分组域网絡的移动性管理网元根据承载类型的不同, 将一部分承载删 除, 保留另一部分承载, 指示 SGW将保留的这部分承载挂起和未保留的承 载删除。 方式 4 ) 可以釆用以下四种方法之一进行处理: 求消息, 该更新承载请求消息中包括挂起的承载的标识和删除的承载的标识 以及承载的状态, 对于挂起的承载, 承载的状态设置为挂起。 对于删除的承 载, 承载的状态设置为删除。 当服务网关实体收到更新承载请求消息后, 将 状态为挂起的承载的标识对应的承载挂起, 将状态为删除的承载的标识对应 的承载删除;
该方法中更新承载消息携带的内容示例如下:
Bearer ID 1 , Suspend
Bearer ID 2 , Suspend
Bearer ID 3 , Delete
Bearer ID 4 , Delete。 求消息, 该更新承载请求消息中包括挂起的承载的标识列表和删除的承载的 标识列表; 当服务网关实体收到更新承载请求消息后, 将挂起的承载的标识 列表对应的承载挂起, 将删除的承载的标识列表对应的承载删除;
该方法中更新承载消息携带的内容示例如下:
Suspend List:
Bearer ID 1
Bearer ID 2
Delete List:
Bearer ID 3
Bearer ID 4。
Figure imgf000014_0001
求消息, 该挂起承载请求消息中包括挂起的承载的标识列表和删除的承载的 标识列表, 服务网关实体收到挂起承载请求消息后, 将挂起的承载的标识列 表对应的承载的状态设置为挂起,将删除的承载的标识列表对应的承载删除; 求消息, 该挂起承载请求消息中携带 UE的标识和删除的承载的标识列表, 服务网关实体收到挂起承载请求消息后, 将删除的承载的标识列表对应的承 载删除, 将其它的承载挂起。 分组域网絡的移动性管理网元指示服务网关实体将需要挂起的承载挂起 可以釆用以下四种方式进行处理: 求消息, 该更新承载请求消息中包括需要挂起的承载的标识和承载的状态, 承载的状态设置为挂起; 当服务网关实体收到更新承载请求消息后, 将承载 的标识对应的 7 载进行挂起; 求消息, 该更新承载请求消息中包括 UE的标识和承载的状态, 承载的状态 设置为挂起; 当服务网关实体收到更新承载请求消息后, 将 UE的所有承载 进行挂起;
方式三: 分组域网絡的移动性管理网元向服务网关实体发送挂起承载 请求消息, 该挂起承载请求消息中包括需要挂起的承载的标识, 服务网关 实体收到挂起承载请求消息后, 将承载的标识对应的承载的状态设置为挂 起。 求消息, 该挂起承载请求消息中携带 UE的标识, 服务网关实体收到挂起承 载请求消息后, 将 UE的所有承载状态设置为挂起。
当服务网关实体 SGW将承载挂起后,后续服务网关实体 SGW收到挂起 的承载的下行数据包后将不触发寻呼(Paging ) , SGW可以緩存这些下行数 据包, SGW也可以释放挂起承载使用的 SGW与下行用户面网元之间的资源 , 例如释放挂起承载使用的下行 TEID, 例如, 对于 E-UTRAN网絡来说, SGW 释放 SGW与 eNodeB之间的资源; 对于 UTRAN网絡来说, SGW释放 SGW 与 RNC或者 3G SGSN之间的资源;对于 GERAN网絡来说, SGW释放 SGW 与 2G SGSN之间的资源。
下面以 UE从分组域网絡切换到 CDMA2000 lx网絡为例 ,进行具体说明 , 对于其他电路域网絡类型, 如 GSM 电路域网絡, 其基本流程和处理机制均 与之相同或相似 , 所以本发明实施例不再详细赞述。
图 7为 UE从分组域网絡切换到 CDMA2000 lx网絡过程中资源处理方法 的一个实施例的信令流程图, 如图 7所示, 该方法具体包括:
71、 在分组域网絡中存在 VoIP会话 ( VoIP Session ) 。
72、 分组域网絡的接入网决定切换到 CDMA2000 lx网絡。 分组域网絡 的接入网可以为 E-UTRAN、 GERAN、 UTRAN。
73、 分组域网絡的接入网发送重定位指示通知 UE执行***间切换流程 处理。
74、 UE通过分组域网絡发送 lx Origination (发起 ) 消息到 lx CS IWS„ 即 UE将 lx Origination消息发给分组域网絡的接入网, 分组域网絡的接入网 发送上行 CDMA2000隧道消息 ( lx Origination消息封装在这个消息中 ) 到 分组域网絡的移动性管理网元 (对于 GERAN/UTRAN 网絡, 分组域网絡的 移动性管理网元为 SGSN; 对于 E-UTRAN 网絡, 分组域网絡的移动性管理 网元为 MME ) 。 分组域网絡的移动性管理网元收到上行 CDMA2000隧道消 息后从消息中获取 lx Origination消息, 且将 lx Origination消息发给 lx CS IWS„
75、交换解决功能 IWS发送 CM业务请求 CM Service Request消息到 lx CS MSC。
76、 MSC发送分配请求 Assignment Request消息到 IWS。
77、 IWS通过分组域网絡发送切换指导 Handoff Direction消息到 UE。 即
IWS发送 Handoff Direction消息到分组域网絡的移动性管理网元, 分组域网 絡的移动性管理网元发送下行 CDMA2000隧道消息( Handoff Direction消息 封装在这个消息中) 到分组域网絡的接入网, 分组域网絡的接入网转发 Handoff Direction消息到 UE。
78、 UE在切换到 CDMA lx网絡之前可以发送 RRC释放请求消息 , RRC
Release Request消息到分组域网絡的接入网。 UE在 RRC Release Request消 息中携带指示信息,用于指示分组域网絡的接入网这个 RRC连接释放是由于 切换导致的。 如 UE在这个消息中携带一个 "Cause" 信元, 且设置这个信元 值为 "Handover Triggered (切换触发) " 或者 UE 在这个消息中携带一个 "Handover Triggered Indicator (切换触发指示) " 信元。
79、 分组域网絡的接入网收到上述的 RRC Release Request消息后, 发送 释放消息到分组域网絡的移动性管理网元。 对于 E-UTRAN网絡, 这个释放 消息为 SI UE Context Release Request ( SI UE上下文释放请求 ) 消息; 对于 UTRAN/GERAN网絡, 这个释放消息为 Iu Release Request ( Iu释放请求)消 息。 分组域网絡的接入网在释放请求消息中携带指示信息, 用于指示分组域 网絡的移动性管理网元这个释放请求是由于 UE切换导致的。 如分组域网絡 的接入网在释放请求消息中携带一个 "Cause" 信元, 且设置这个信元值为 "Handover Triggered (切换触发) " 或者分组域网絡的接入网在释放请求 消息中携带一个 "Handover Triggered Indicator (切换触发指示) " 信元。
710、分组域网絡的移动性管理网元收到上述消息后对 UE在分组域网絡 中的资源进行管理。 分组域网絡的移动性管理网元可以进行如下处理:
1 )分组域网絡的移动性管理网元发起用户隐式分离处理流程, 将 UE从 分组域网絡中分离。 UE从网絡中分离的同时承载也从分组域网絡中被删除, 此时, 在图 7 中分组域网絡的移动性管理网元仅发送承载删除请求消息至 SGW , SGW与 PDN GW交互, 删除 UE相关的承载。
2 )分组域网絡的移动性管理网元不分离 UE (保留 UE的 MM上下文 ) , 对于 GBR承载, 分组域网絡的移动性管理网元发起承载删除流程删除, 即 发送承载删除请求消息至 SGW; 对于 non-GBR承载, 分组域网絡的移动性 管理网元保留这些承载, 但是指示 SGW将这些承载挂起(Suspend ) 。
3 )分组域网絡的移动性管理网元不分离 UE (保留 UE的 MM上下文), 对于 VoIP承载, 分组域网絡的移动性管理网元发起承载删除流程删除, 即 发送承载删除请求消息至 SGW; 对于其它承载, 分组域网絡的移动性管理网 元保留这些承载, 但是指示 SGW将这些承载挂起。
4 )分组域网絡的移动性管理网元不分离 UE (保留 UE的 MM上下文), 对于承载, 分组域网絡的移动性管理网元保留这些承载, 但是指示 SGW将 这些承载挂起。
分组域网絡的移动性管理网元可以有如下方法指示 SGW挂起承载: a ) 分组域网絡的移动性管理网元发送更新承载请求消息到 SGW。 对于 每个需要挂起的承载, 更新承载请求消息中携带这个承载的标识、 承载的状 态。 分组域网絡的移动性管理网元将承载的状态设置为 "Suspend" 。
b ) 分组域网絡的移动性管理网元发送更新承载请求消息到 SGW。 消息 中携带 UE的标识和承载的状态。 分组域网絡的移动性管理网元将承载的状 态设置为 "Suspend" , 服务网关实体 SGW将 UE的所有承载的状态设置为 挂起。
c ) 分组域网絡的移动性管理网元发送挂起承载请求 ( Suspend Bearer Request ) 消息到 SGW。 对于每个需要挂起的承载, 挂起承载请求消息中携 带这个承载的标识, 服务网关实体 SGW收到挂起承载请求消息后, 向承载 的标识对应的承载的状态设置为挂起。
d ) 分组域网絡的移动性管理网元发送挂起承载请求 ( Suspend Bearer Request ) 消息到 SGW, 消息中携带 UE的标识, 则 SGW收到该挂起承载请 求消息后, 将 UE的所有承载的状态设置为挂起。
711、 UE切到 CDMA lx网絡, 执行 TCC程序以获得传输通道。
712、 UE发送 lx切换完成消息到 CDMA2000 lx接入网。
713、 CDMA2000 lx接入网发送切换完成( Handoff Complete )消息或者 分配完成 ( Assignment Complete ) 消息到 MSC。
714、 语音呼叫在 CDMA2000 lx网絡中建立。
在本发明的实施例中, 当分组网絡的移动性管理网元根据承载类型的不 同, 需要将一部分承载删除, 保留另一部分承载时, 还可以釆用以下方式之 1 )分组域网絡的移动性管理网元可以指示 SGW将用户的所有承载挂起; 分组域网絡的移动性管理网元根据承载类型的不同, 保留一部分承载 (如 non-GBR承载) , 将另一部分承载 ( GBR承载)发起承载删除流程删除; 2 )分组域网絡的移动性管理网元根据承载类型的不同, 将一部分承载删 除(如 GBR承载), 保留另一部分承载(如 non-GBR承载) , 指示 SGW将 保留的这部分承载挂起; SGW收到挂起承载的消息后挂起保留的承载, 删除 未保留的承载 (即 SGW将未挂起的承载删除, 如 SGW将 GBR承载删除 ); 3 )分组域网絡的移动性管理网元根据承载类型的不同, 将一部分承载删 除(如 GBR承载 ) , 保留另一部分承载 (如 non-GBR承载 ) , 分组域网絡 的移动性管理网元指示 SGW挂起用户的所有承载, SGW收到挂起承载的消 息后, 根据承载类型的不同, 将一部分承载删除(如 GBR承载) , 将保留 的承载挂起(如 non-GBR承载) ; 实行本方式时, 要求 SGW与移动性管理 网元具有相同的承载处理规则;
4 )分组域网絡的移动性管理网元根据承载类型的不同, 将一部分承载删 除, 保留另一部分承载, 指示 SGW将保留的这部分承载挂起和未保留的承 载删除。 方式 4 ) 可以釆用以下四种方法之一进行处理: 求消息, 该更新承载请求消息中包括挂起的承载的标识和删除的承载的标识 以及承载的状态, 对于挂起的承载, 承载的状态设置为挂起。 对于删除的承 载, 承载的状态设置为删除。 当服务网关实体收到更新承载请求消息后, 将 状态为挂起的承载的标识对应的承载挂起, 将状态为删除的承载的标识对应 的承载删除; 求消息, 该更新承载请求消息中包括挂起的承载的标识列表和删除的承载的 标识列表; 当服务网关实体收到更新承载请求消息后, 将挂起的承载的标识 列表对应的承载挂起, 将删除的承载的标识列表对应的承载删除; 求消息, 该挂起承载请求消息中包括挂起的承载的标识列表和删除的承载的 标识列表, 服务网关实体收到该挂起承载请求消息后, 将挂起的承载的标识 列表对应的承载的状态设置为挂起, 将删除的承载的标识列表对应的承载删 除; 求消息, 该挂起承载请求消息中携带 UE的标识和删除的承载的标识列表, 服务网关实体收到该挂起承载请求消息后, 将删除的承载的标识列表对应的 承载删除, 将其它的承载挂起。
通过以上实施例,实现了 UE在收到 CDMA2000 lx接入网发送的切换指 导消息 Handoff Direction后, 即当 UE通过分组域网絡完成 CDMA2000 lx 网絡接入建立后, 准备切换到 CDMA2000 lx网絡时, 主动发起释放流程, 向分组域网絡的接入网发送 RRC释放请求消息, 以向网絡侧指示可以对 UE 在分组域网絡中的资源进行处理, 分组域网絡的接入网在接收到 UE发送的 RRC 释放请求消息后, 将释放请求消息发送至分组域网絡的移动性管理网 元, 实现了分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进行 处理。
图 8为 UE从分组域网絡切换到 CDMA2000 lx网絡过程中资源处理方法 的另一个实施例的信令流程图, 如图 8所示, 该方法包括:
步骤 81至步骤 87 , 与上一实施例中步骤 71至步骤 77各步骤——对应。 步骤 88、 分组域网絡的接入网收到分组域网絡的移动性管理网元发送的 下行 CDMA2000隧道消息后 ( Handoff Direction消息封装在这个消息中) , 即分组域网絡的接入网接收到分组域网絡的移动性管理网元发送的切换指导 Handoff Direction消息后, 发送释放消息到分组域网絡的移动性管理网元。 对于 E-UTRAN网絡,这个释放消息为 SI UE Context Release Request ( SI UE 上下文释放请求) 消息; 对于 UTRAN/GERAN 网絡, 这个释放消息为 Iu Release Request ( Iu释放请求) 消息。 分组域网絡的接入网在释放请求消息 中携带指示信息, 用于指示分组域网絡的移动性管理网元这个释放请求是由 于 UE 切换导致的。 如分组域网絡的接入网在释放请求消息中携带一个 "Cause"信元, 且设置这个信元值为 "Handover Triggered (切换触发)" 或 者分组域网絡的接入网在释放请求消息中携带一个 " Handover Triggered Indicator (切换触发指示) " 信元。
步骤 89至步骤 813与上一实施例中步骤 710至步骤 714各步骤——对应。 该实施例实现了分组域网絡的接入网根据收到了分组域网絡的移动性管 理网元发送的切换指导消息, 确定 UE进行了切换, 主动发起释放请求消息, 以便分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进行处理。
图 9为 UE从分组域网絡切换到 CDMA2000 lx网絡过程中资源处理方法 的再一个实施例的信令流程图, 如图 9所示, 该方法包括:
步骤 91到步骤 97 , 与上述实施例中的步骤 71至步骤 77各步骤——对 应。
步骤 98到步骤 91 1 , 与上述实施例中的步骤 711到步骤 714各步骤—— 对应。
步骤 912、 UE切换到 CDMA 2000 lx网絡后, lx CS MSC收到 lx CS Access网元发送的分配完成消息 Assignment complete (图中出示) , 或者 lx CS Access网元发送的 lx切换完成消息 (图中并未出示, 可替换分配完成消 息)后, lx CS MSC网元发送清除命令消息 Clear Command至 IWS。
步骤 913、 IWS在接收到清除命令消息 Clear Command后, 发送切换完 成消息 Handoff Complete到分组域网絡的移动性管理网元。
步骤 914、 分组域网絡的移动性管理网元在收到 IWS发送的切换完成消 息后, 确定 UE进行了切换, 则对 UE在分组域网絡中的资源进行管理。 分 组域网絡的移动性管理网元对 UE在分组域网絡中的资源进行管理的方式与 步骤 710中的处理方式相同, 在此不再复述。
该实施例中, 分组域网絡的移动性管理网元在处理 UE从分组域网絡切 换到电路域网絡过程中, 根据收到的电路域网絡发送的切换完成消息, 确定
UE成功切换到了电路域网絡, 主动发起对 UE在分组域网絡中资源的处理, 实现了对 UE在分组域网絡中资源的处理。
在图 9出示的实施例中, 交换解决功能 IWS网元为一个独立的网元, 其 主要的功能是实现 lx CS信令交换转发功能,将来自 lx CS MSC的 lx CS信 令封装, 通过分组域网絡发给 UE; 或者 UE通过分组域网絡将封装的 lx CS 信令发给 IWS , IWS转发封装的 lx CS信令到 lx CS MSC。 在具体实施时, 该 IWS网元的功能可以与网絡中的其他网元集成在一起, 构成集成网元, 则 图 9所述的实施例中, 步骤 912、 步骤 913中 GPP移动性管理网元接收电路 域网絡发送的切换完成消息还可以有以下几种形式:
1 )如果 IWS和 lx CS Access网元集成在一起, 则 IWS/lx CS Access网 元收到 UE发送的 lx切换完成消息后, 发送切换完成消息 Handoff Complete 或者分配完成消息 Assignment complete到分组域网絡的移动性管理网元, 本 发明实施例中, 切换完成消息或者分配完成消息仅仅为消息名称的不同, 其 作用是一致的, 都是表示切换完成, 可以统一理解为切换完成消息。
2 )如果 lx CS IWS和分组域网絡的移动性管理网元集成在一起,则 lx CS MSC网元收到 lx CS Access网元发送的切换完成消息后,发送清除命令消息 到 lx CS IWS/分组域网絡的移动性管理网元, 这种情况下, 集成网元在收到 的清除命令消息后, 集成网元中的交换解决功能可以将其转换为切换完成消 息,或者集成网元在收到清除命令消息后即可以理解为收到了切换完成消息, 以进行后续处理。
3 )如果 lx CS IWS和 lx CS MSC集成在一起,则 lx CS IWS/lx CS MSC 网元收到 lx CS Access网元发送的切换完成消息后, 发送切换完成消息到分 组域网絡的移动性管理网元。 以上详细的介绍了本发明实施例中 UE从分组域网絡切换到电路域网絡 过程中, 对 UE在分组域网絡中资源的处理方法, 下面介绍通信***以及分 组域网絡中的移动性管理网元, 用于实现对 UE从分组域网絡切换到电路域 网絡过程中, 对 UE在分组域网絡中资源的处理, 以上方法中的各种处理手 段以及对特征的详细说明, 均可适用于以下介绍的通信***和分组域网絡中 的移动性管理网元。
图 10为本发明通信***的一个实施例的结构图, 如图 10所示, 包括分 组域网絡的移动性管理网元 101和分组域网絡的接入网 103 , 当用户设备 UE 从分组域网絡切换到电路域网絡过程中, 分组域网絡的接入网 103用于向分 组域网絡的移动性管理网元发送释放请求消息, 分组域网絡的移动性管理网 元 101用于接收分组域网絡的接入网发送的释放请求消息, 对 UE在分组域 网絡中的资源进行处理。
对于 GERAN/UTRAN网絡,分组域网絡的移动性管理网元可以为 SGSN; 对于 E-UTRAN网絡, 分组域网絡的移动性管理网元可以为 MME , 相应的, 分组域网絡的接入网, 也对应各种分组域网絡中的接入网絡。
UE从分组域网絡切换到电路域网絡的具体流程, 可以参见图 7、 图 8的 方法实施例, 具体流程不再复述, 这里, 分组域网絡的接入网可以在接收到 分组域网絡的移动性管理网元发送的切换指导消息后, 向分组域网絡的移动 性管理网元发送释放请求消息,也可以在接收到用户终端 UE发送的 RRC释 放请求消息后, 向分组域网絡的移动性管理网元发送释放请求消息, 该 RRC 释放请求消息可以为 UE在接收到切换指导消息后向分组域网絡的接入网发 送。 该 RRC释放请求消息中还可以包含有指示 RRC释放请求是由于 UE切 换到电路域网絡导致的指示信息, 如 UE在这个消息中携带一个 "Cause" 信 元, 设置这个信元值为 "Handover Triggered (切换触发) " 或者 UE在这个 消息中携带一个 "Handover Triggered Indicator (切换触发指示) " 信元, 分 组域网絡的接入网也可以用于在向分组域网絡的移动性管理网元发送的释放 请求消息中携带指示信息, 该指示信息用于指示释放请求是由于 UE切换到 电路域网絡导致的, 如在释放请求消息中携带一个 "Cause"信元, 设置这个 信元值为 "Handover Triggered (切换触发) " 或者 分组域网絡的接入网在 释放请求消息中携带一个 "Handover Triggered Indicator (切换触发指示 ) " 信元。
分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进行处理, 可以釆用以下方式之一:
1 )分组域网絡的移动性管理网元发起用户隐式分离处理流程, 将 UE从 分组域网絡中分离。 UE从网絡中分离的同时承载也从分组域网絡中被删除。
2 )分组域网絡的移动性管理网元不分离 UE (保留 UE的 MM上下文 ) , 对于 GBR承载, 分组域网絡的移动性管理网元发起承载删除流程删除; 对 于 non-GBR承载, 分组域网絡的移动性管理网元保留这些承载, 但是指示 SGW将这些承载挂起 ( Suspend ) 。 分组域网絡的移动性管理网元可以有如 下方法指示 SGW挂起承载:
a ) 分组域网絡的移动性管理网元发送更新承载请求消息到 SGW。 对于 每个需要挂起的承载, 更新承载请求消息中携带这个承载的标识、 承载的状 态。 分组域网絡的移动性管理网元将承载的状态设置为 "Suspend" 。
b ) 分组域网絡的移动性管理网元发送挂起承载请求 ( Suspend Bearer Request ) 消息到 SGW。 对于每个需要挂起的承载, 挂起承载请求消息中携 带这个承载的标识。
SGW 收到承载挂起的指示后将这个承载的状态置为 "Suspend" 。 后续 SGW在这个承载上收到下行数据包后将不触发寻呼 (Paging ) 。 SGW 可以 緩存这些下行数据包。 SGW也可以释放挂起承载使用的 SGW与下行用户面 网元之间的资源 (如 SGW 释放挂起承载使用的下行 TEID ) , 例如, 对于 E-UTRAN网絡来说, SGW释放 SGW与 eNodeB之间的资源; 对于 UTRAN 网絡来说, SGW释放 SGW与 RNC或者 3G SGSN之间的资源;对于 GERAN 网絡来说, SGW释放 SGW与 2G SGSN之间的资源。
3 )分组域网絡的移动性管理网元不分离 UE (保留 UE的 MM上下文), 对于 VoIP承载, 分组域网絡的移动性管理网元发起承载删除流程删除; 对 于其它承载, 分组域网絡的移动性管理网元保留这些承载, 但是指示 SGW 将这些承载挂起。
4 )分组域网絡的移动性管理网元不分离 UE (保留 UE的 MM上下文), 对于承载, 分组域网絡的移动性管理网元保留这些承载, 但是指示 SGW将 这些承载挂起。 分组域网絡的移动性管理网元可以有如下方法指示 SGW挂 起承载:
a ) 分组域网絡的移动性管理网元发送更新承载请求消息到 SGW。 对于 每个需要挂起的承载, 更新承载请求消息中携带这个承载的标识、 承载的状 态。 分组域网絡的移动性管理网元将承载的状态设置为 "Suspend" 。
b ) 分组域网絡的移动性管理网元发送更新承载请求消息到 SGW。 消息 中携带 UE的标识和承载的状态。 分组域网絡的移动性管理网元将承载的状 态设置为 "Suspend" , 服务网关实体 SGW将 UE的所有承载的状态设置为 挂起。
c ) 分组域网絡的移动性管理网元发送挂起承载请求 ( Suspend Bearer Request ) 消息到 SGW。 对于每个需要挂起的承载, 挂起承载请求消息中携 带这个承载的标识, 服务网关实体 SGW收到挂起承载请求消息后, 向承载 的标识对应的承载的状态设置为挂起。
d ) 分组域网絡的移动性管理网元发送挂起承载请求 ( Suspend Bearer Request ) 消息到 SGW, 消息中携带 UE的标识, 则 SGW收到挂起承载请求 消息后, 将 UE的所有承载的状态设置为挂起。
注: 分组域网絡的移动性管理网元也可以指示 SGW将用户的所有承载 挂起; 分组域网絡的移动性管理网元根据承载类型的不同, 保留一部分承载 (如 non-GBR承载), 将另一部分承载 ( GBR承载或者 VOIP承载)发起承 载删除流程删除; 或者,
分组域网絡的移动性管理网元根据承载类型的不同,将一部分承载删除, 保留另一部分承载 (如 non-GBR承载) , 指示 SGW将保留的这部分承载挂 起; SGW 收到挂起承载的消息后挂起保留的承载, 删除未保留的承载 (即 SGW将未挂起的承载删除, 如 SGW将 GBR承载或者 VOIP承载删除 ); 或 者,
分组域网絡的移动性管理网元根据承载类型的不同,将一部分承载删除, 保留另一部分承载(如 non-GBR承载), 分组域网絡的移动性管理网元指示 SGW挂起承载(如上述方式四中的描述, 分组域网絡的移动性管理网元向服 务网关实体发送挂起承载请求消息, 该挂起承载请求消息中携带 UE 的标 识) , SGW收到挂起承载的消息后将保留的承载挂起(如 non-GBR承载) , 删除未保留的承载 (即 SGW将未挂起的承载删除, 如 SGW将 GBR承载或 者 VOIP承载删除) ; 或者,
分组域网絡的移动性管理网元根据承载类型的不同,将一部分承载删除, 保留另一部分承载, 指示 SGW将保留的这部分承载挂起和未保留的承载删 除。 可以釆用以下四种方式进行处理: 求消息, 该更新承载请求消息中包括挂起的承载的标识和删除的承载的标识 以及承载的状态, 对于挂起的承载, 承载的状态设置为挂起。 对于删除的承 载, 承载的状态设置为删除。 当服务网关实体收到更新承载请求消息后, 将 状态为挂起的承载的标识对应的承载挂起, 将状态为删除的承载的标识对应 的承载删除; 求消息, 该更新承载请求消息中包括挂起的承载的标识列表和删除的承载的 标识列表; 当服务网关实体收到更新承载请求消息后, 将挂起的承载的标识 列表对应的承载挂起, 将删除的承载的标识列表对应的承载删除; 息, 该挂起承载请求消息中包括挂起的承载的标识和删除的承载的标识列表, 服务网关实体收到挂起承载请求消息后, 将挂起的承载的标识对应的承载的状 态设置为挂起, 将删除的承载的标识列表对应的承载删除。 求消息, 该挂起承载请求消息中携带 UE的标识和删除的承载的标识列表, 服务网关实体收到挂起承载请求消息后, 将删除的承载的标识列表对应的承 载删除, 将其它的承载挂起。
该通信***还可以包括电路域网絡, 用于与分组域网絡的移动性管理网 元进行交互, 为 UE切换提供必要的无线资源等, 并在 UE切换完成后, 向 分组域网絡的移动性管理网元发送切换完成消息, 分组域网絡的移动性管理 网元将切换完成消息通过分组域网絡的接入网, 发送至 UE。 具体实现方式, 请参考图 7、 图 8对应的实施例。
通过本发明实施例提供的通信***, 分组域网絡的接入网向分组域网絡 的移动性管理网元发送释放请求消息, 分组域网絡的移动性管理网元在接收 到分组域网絡的接入网发送的释放请求消息后, 即发起对 UE在分组域网絡 中的资源的处理, 从而在 UE由分组域网絡切换到 CDMA2000 1 x网絡过程 中, 实现了对 UE在分组域网絡中的资源的处理。
图 11为本发明通信***的另一个实施例的结构图, 如图 11所示, 包括 分组域网絡的移动性管理网元 111和电路域网絡 113 , 当用户设备 UE从分 组域网絡切换到电路域网絡过程中, 电路域网絡 113用于向分组域网絡的移 动性管理网元发送切换完成消息; 分组域网絡的移动性管理网元 111用于接 收电路域网絡发送的切换完成消息, 并在接收到切换完成消息后, 对 UE在 分组域网絡中的资源进行处理。
对于 GERAN/UTRAN网絡,分组域网絡的移动性管理网元可以为 SGSN; 对于 E-UTRAN网絡, 分组域网絡的移动性管理网元可以为 MME, 电路域网 絡可以为 CDMA 2000 lx网絡或者 GSM电路域网絡等。
UE从分组域网絡切换到电路域网絡的具体流程,可以参见图 9的方法实 施例, 具体流程不再复述, 这里, 分组域网絡的移动性管理网元收到切换完 成消息后, 对 UE在分组域网絡中的资源进行处理。
进一步的, 该通信***还可以进一步包括电路域网絡和分组域网絡之间 的交换解决功能网元 IWS , 电路域网絡还可以进一步包括接入网元和移动性 管理网元, 例如在 CDMA 2000 lx中, 接入网元可以为 lx CS Access网元, 移动性管理网元可以为 lx CS MSC。
其中, 交换解决功能 IWS网元主要的功能是实现 lx CS信令交换转发功 能, 将来自 lx CS MSC的 lx CS信令封装, 通过分组域网絡发给 UE; 或者 UE通过分组域网絡将封装的 lx CS信令发给 IWS, IWS转发封装的 lx CS 信令到 lx CS MSC。 在具体实施时, IWS可以为一个独立的网元, 也可以与 网絡中的其他网元集成在一起, 构成集成网元, 可以由几下几种情况:
1、如果交换解决功能网元和电路域网絡的接入网元集成在一起, 则集成 网元用于在收到 UE发送的切换完成消息后, 发送切换完成消息到分组域网 絡的移动性管理网元;
2、 如果交换解决功能网元和分组域网絡的移动性管理网元集成在一起, 消息; 电路域网絡的移动性管理网元用于在收到电路域网絡的接入网元发送 的切换完成消息后, 发送清除命令消息到集成网元;
3、如果电路域网絡和分组域网絡之间的交换解决功能为独立网元, 则电 路域网絡的接入网元用于向电路域网絡的移动性管理网元发送切换完成消 息; 电路域网絡的移动性管理网元用于在收到电路域网絡的接入网元发送的 切换完成消息后, 发送清除命令消息到交换解决功能网元; 该交换解决功能 网元用于在接收到电路域网絡的移动性管理网元发送的清除命令消息后, 发 送切换完成消息到分组域网絡的移动性管理网元。 4、 如果交换解决功能网元和电路域网絡的移动性管理网元集成在一起, 则集成网元收到电路域网絡的接入网元发送的切换完成消息后, 发送切换完 成消息到分组域网絡的移动性管理网元。
分组域网絡的移动性管理网元在接收到切换完成消息后, 对 UE在分组 域网絡中的资源进行处理的方式, 与上一实施例中分组域网絡的移动性管理 网元的处理相同, 不再复述。
图 12为本发明分组域网絡中的移动性管理网元的一个实施例的结构图, 如图 12所示, 包括接收单元 121和资源处理单元 123 , 其中, 接收单元 121 用于在用户设备 UE从分组域网絡切换到电路域网絡过程中, 接收分组域网 絡的接入网发送的释放请求消息或者接收电路域网絡发送的切换完成消息; 资源处理单元 123用于在接收单元 121接收到分组域网絡的接入网发送的释 放请求消息或者接收到电路域网絡发送的切换完成消息后, 对 UE在分组域 网絡中的资源进行处理。
对于 GERAN/UTRAN网絡,分组域网絡的移动性管理网元可以为 SGSN; 对于 E-UTRAN网絡, 分组域网絡的移动性管理网元可以为 MME。
UE从分组域网絡切换到电路域网絡的具体流程, 可以参见图 7、 图 8和 图 9的方法实施例, 具体流程不再复述。
图 13 为本发明分组域网絡中的移动性管理网元的另一个实施例的结构 图, 如图 13所示, 包括接收单元 121和资源处理单元 123 , 在图 12对应的 实施例的基础上, 接收单元 121可以包括第一接收模块 1211和 /或第二接收 模块 1213 , 其中,
第一接收模块 1211用于在用户设备 UE从分组域网絡切换到电路域网絡 过程中, 接收分组域网絡的接入网发送的释放请求消息, 释放请求消息中可 以包括指示信息, 用于指示释放请求是由于 UE切换到电路域网絡导致的, 如释放请求消息中携带有一个 "Cause" 信元, 设置这个信元值为 "Handover Triggered (切换触发) "或者释放请求消息中携带有一个 "Handover Triggered Indicator (切换触发指示)信元, 第一接收模块 121 1收到分组域网絡的接入 网发送的释放请求消息后如果发现消息中携带指示信息指示释放请求是由于 UE切换到电路域网絡导致的, 则可以通知资源处理单元 123 , 对 UE在分组 域网絡中的资源进行处理。
第二接收模块 1213用于在用户设备 UE从分组域网絡切换到电路域网絡 过程中, 接收电路域网絡发送的切换完成消息, 具体包括以下几种情况:
1、如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡 的接入网元集成在一起,则第二接收模块 1213用于接收电路域网絡的接入网 元发送的切换完成消息;
2、如果电路域网絡和分组域网絡之间的交换解决功能网元和分组域网絡 的移动性管理网元集成在一起,则第二接收模块 1213用于接收电路域网絡的 移动性管理网元发送的清除命令消息;
3、如果电路域网絡和分组域网絡之间的交换解决功能为独立网元, 则第 二接收模块 1213用于接收交换解决功能网元发送的切换完成消息,其中交换 解决功能网元是在接收到电路域网絡移动性管理网元发送的清除命令消息 后, 发送切换完成消息之第二接收模块 1213 ;
4、如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡 的移动性管理网元集成在一起,则第二接收模块 1213用于接收电路域网絡的 移动性管理网元发送的切换完成消息。
第二接收模块 1213在接收电路域网絡发送的切换完成消息后,可以通知 资源处理单元 123 , 对 UE在分组域网絡中的资源进行处理。
进一步的, 资源处理单元 123可以具体包括以下模块之一或组合: 第一资源处理模块 1231 , 用于发起用户隐式分离处理流程, 将 UE从分 组域网各中分离;
第二资源处理模块 1233 , 用于保留 UE在分组域网絡中的所有承载, 指 示服务网关实体将承载挂起; 第三资源处理模块 1235 , 用于根据承载类型的不同, 将一部分承载类型 对应的承载发起承载删除流程删除;对于另一部分承载类型对应的承载保留, 指示服务网关实体将保留的承载挂起, 例如, 对于 GBR承载, 第三资源处 理模块 1235发起承载删除流程删除; 对于 non-GBR承载第三资源处理模块 1235保留 non-GBR承载, 指示服务网关实体将 non-GBR承载挂起; 或者 对于 VoIP承载, 第三资源处理模块 1235发起承载删除流程删除; 对于 VoIP承载以外的其它承载,第三资源处理模块 1235保留 VoIP承载以外的其 它承载, 指示服务网关实体将 VoIP承载以外的其它承载挂起, 这样对于原 来 UE在分组域网絡中的语音承载就可以被及时的释放掉, 而保留其他非语 音承载, 并进行挂起处理, 这样有利于当 UE再次回到分组域网絡中后, 可 以继续为用户不间断的提供业务。
在本发明的实施例中, 资源处理单元还可以包括下列模块之一或组合, 也可以包括下列模块与上述第一资源处理模块、 第二资源处理模块或第三资 源处理模块的各种组合。
第四资源处理模块, 用于根据承载类型的不同, 将部分承载删除, 保留 另一部分承载, 指示服务网关实体将保留的承载挂起;
第五资源处理模块,用于指示服务网关实体将用户的所有承载挂起,并根据 承载类型的不同, 保留部分承载, 对于另一部分承载发起承载删除流程删除; 第六资源处理模块, 用于指示服务网关实体将用户的所有承载挂起, 并 根据承载类型的不同, 将部分承载删除, 保留另一部分承载;
第七资源处理模块, 用于根据承载类型的不同, 将部分承载删除, 保留 另一部分承载, 指示服务网关实体将保留的承载挂起和未保留的承载删除 资源处理单元 123还可以进一步包括以下模块之一或组合: 第一承载挂 起处理模块 1237、第二承载挂起处理模块 1239、第三承载挂起处理模块 1241 和第四承载挂起处理模块 1243。 第二资源处理模块 1233或第三资源处理模 块 1235 或第四资源处理模块可以将需要挂起的承载的标识发送至第一承载 挂起处理模块 1237或者第二承载挂起处理模块 1239, 或者第二资源处理模 块 1233或第五资源处理模块或第六资源处理模块发送 UE的标识至第三承载 挂起处理模块 1241或第四承载挂起处理模块 1243 , 以指示挂起 UE的所有承 载, 其中第一承载挂起处理模块 1237用于接收需要挂起的承载的标识, 向服务 网关实体发送更新承载请求消息, 更新承载请求消息中包括需要挂起的承载的 标识和承载的状态, 承载的状态设置为挂起;
第二承载挂起处理模块用于接收需要挂起的承载的标识, 向服务网关实 体发送挂起承载请求消息,挂起承载请求消息中包括需要挂起的承载的标识, 挂起承载请求消息用于指示服务网关实体将承载的标识对应的承载的状态设 置为挂起;
第三承载挂起处理模块用于接收需要挂起的 UE的标识, 向服务网关实 体发送更新承载请求消息, 更新承载请求消息中包括 UE的标识和承载的状 态,承载的状态设置为挂起,更新承载请求消息用于指示服务网关实体将 UE 的所有承载的状态设置为挂起;
第四承载挂起处理模块用于接收需要挂起的 UE的标识,向服务网关实体发 送挂起承载请求消息,挂起承载请求消息中包括 UE的标识,挂起承载请求消息 用于指示服务网关实体将 UE的所有承载的状态设置为挂起。
第七资源处理模块还可以包括下列子单元之一或组合:
第一处理子单元, 用于向服务网关实体发送更新承载请求消息, 更新承 载请求消息中包括挂起的承载的标识和删除的承载的标识以及承载的状态, 对于挂起的承载, 承载的状态设置为挂起。 对于删除的承载, 承载的状态设 置为删除;
第二处理子单元, 用于向服务网关实体发送更新承载请求消息, 更新承 载请求消息中包括挂起的承载的标识列表和删除的承载的标识列表;
第三处理子单元, 用于向服务网关实体发送挂起承载请求消息, 挂起承 载请求消息中包括挂起的承载的标识列表和删除的承载的标识列表; 第四处理子单元, 用于向服务网关实体发送挂起承载请求消息, 挂起承 载请求消息中携带 UE的标识和删除的承载的标识列表。
当服务网关实体 SGW将承载挂起后,后续服务网关实体 SGW收到挂起 的承载的下行数据包后将不触发寻呼(Paging ) , SGW可以緩存这些下行数 据包, SGW也可以释放挂起承载使用的 SGW与下行用户面网元之间的资源 , 例如释放挂起承载使用的下行 TEID, 例如, 对于 E-UTRAN网絡来说, SGW 释放 SGW与 eNodeB之间的资源; 对于 UTRAN网絡来说, SGW释放 SGW 与 RNC或者 3G SGSN之间的资源;对于 GERAN网絡来说, SGW释放 SGW 与 2G SGSN之间的资源。
通过本发明实施例提供的分组域网絡中的移动性管理网元, 接收单元
121 在用户设备 UE从分组域网絡切换到电路域网絡过程中, 接收分组域网 絡的接入网发送的释放请求消息或者接收电路域网絡发送的切换完成消息, 资源处理单元 123在接收单元 121接收到分组域网絡的接入网发送的释放请 求消息或者接收到电路域网絡发送的切换完成消息后, 即发起对 UE在分组 域网絡中的资源的处理,从而在 UE由分组域网絡切换到电路域网絡过程中, 实现了对 U E在分组域网絡中的资源的处理。
通过以上的实施方式的描述, 所属领域的技术人员可以清楚地了解到本 发明可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件, 但很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技术方案 本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来, 该计算机软件产品存储在可读取的存储介质中, 如计算机的软盘, 硬盘或光 盘等, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网絡设备等)执行本发明各个实施例的方法。 总之, 以上所述仅为本发明技术方案的较佳实施例而已, 并非用于限定 本发明的保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同 替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种资源处理方法, 其特征在于, 该方法包括: 当用户设备 UE从 分组域网絡切换到电路域网絡过程中,分组域网絡的移动性管理网元接收分 组域网絡的接入网发送的释放请求消息或者接收电路域网絡发送的切换完 成消息后, 对 UE在分组域网絡中的资源进行处理。
2、 根据权利要求 1 所述的方法, 其特征在于, 所述分组域网絡的移动 性管理网元接收分组域网絡的接入网发送的释放请求消息之前,该方法还包 括:分组域网絡的接入网在收到分组域网絡的移动性管理网元发送的切换指 导消息后, 向分组域网絡的移动性管理网元发送释放请求。
3、 根据权利要求 1 所述的方法, 其特征在于, 所述分组域网絡的移动 性管理网元接收分组域网絡的接入网发送的释放请求消息之前,该方法还包 括, 分组域网絡的接入网在收到 UE发送的 RRC释放请求消息后, 向分组 域网絡的移动性管理网元发送释放请求, 其中, 所述 RRC释放请求消息为 UE在接收到切换指导消息后向分组域网絡的接入网发送。
4、 根据权利要求 3 所述的方法, 其特征在于, 所述分组域网絡的接入 网接收到 UE发送的 RRC释放请求消息中还包含有指示信息, 所述指示信 息指示所述 RRC释放请求的原因为 UE切换到电路域网絡。
5、 根据权利要求 1至 4任一权利要求所述的方法, 其特征在于, 所述 分组域网絡的移动性管理网元接收到的释放请求消息中还包含有指示信息, 所述指示信息指示所述释放请求的原因为 UE切换到电路域网絡, 则所述分 组域网絡的移动性管理网元根据所述指示信息, 对 UE在分组域网絡中的资 源进行处理。
6、 根据权利要求 1至 4任一权利要求所述的方法, 其特征在于, 所述 分组域网絡的移动性管理网元接收电路域网絡发送的切换完成消息具体为: 如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡 的接入网元集成在一起, 则电路域网絡的接入网元到所述 UE发送的切换完 成消息后发送切换完成消息到分组域网絡的移动性管理网元; 或者 如果电路域网絡和分组域网絡之间的交换解决功能网元和分组域网絡 的移动性管理网元集成在一起,则电路域网絡的移动性管理网元收到电路域 网絡的接入网元发送的切换完成消息后发送清除命令消息到分组域网絡的 移动性管理网元; 或者
如果电路域网絡和分组域网絡之间的交换解决功能为独立网元, 则电路 域网絡的移动性管理网元收到电路域网絡的接入网元发送的切换完成消息 后发送清除命令消息到所述交换解决功能网元,所述交换解决功能网元发送 切换完成消息到分组域网絡的移动性管理网元; 或者
如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡 的移动性管理网元集成在一起,则所述电路域网絡的移动性管理网元收到电 路域网絡的接入网元发送的切换完成消息后发送切换完成消息到分组域网 絡的移动性管理网元。
7、 根据权利要求 1至 4任一权利要求所述的方法, 其特征在于, 所述 分组域网絡的移动性管理网元对 UE在分组域网絡中的资源进行处理包括: 分组域网絡的移动性管理网元发起用户隐式分离处理流程, 将 UE从分 组域网絡中分离; 或者
分组域网絡的移动性管理网元保留 UE在分组域网絡中的所有承载, 指 示服务网关实体将所述承载挂起; 或者
分组域网絡的移动性管理网元根据承载类型的不同, 删除部分承载, 挂 起另一部分承载。
8、 根据权利要求 7所述的方法, 其特征在于, 所述分组域网絡的移动 性管理网元根据承载类型的不同, 删除部分承载, 挂起另一部分承载包括: 分组域网絡的移动性管理网元根据承载类型的不同,发起承载删除流程 删除部分承载, 对于另一部分承载保留, 指示服务网关实体将保留的承载挂 起; 或者 分组域网絡的移动性管理网元指示服务网关实体将用户的所有承载挂 起; 分组域网絡的移动性管理网元根据承载类型的不同, 保留部分承载, 对 于另一部分承载发起承载删除流程删除; 或者
分组域网絡的移动性管理网元根据承载类型的不同, 将部分承载删除, 对于另一部分承载保留, 指示服务网关实体将保留的承载挂起, 服务网关实 体挂起保留的承载, 删除非保留的承载; 或者
分组域网絡的移动性管理网元根据承载类型的不同, 将部分承载删除, 保留另一部分承载,分组域网絡的移动性管理网元指示服务网关实体挂起用 户的所有承载,服务网关实体收到挂起承载的消息后,根据承载类型的不同, 将部分承载删除, 保留另一部分承载; 或者
分组域网絡的移动性管理网元根据承载类型的不同, 将部分承载删除, 保留另一部分承载,指示服务网关实体将保留的承载挂起和未保留的承载删 除。
9、 根据权利要求 7所述的方法, 其特征在于, 所述分组域网絡的移动 性管理网元指示服务网关实体将承载挂起的方法包括: 所述更新承载请求消息中包括需要挂起的承载的标识和承载的状态,所述承 载的状态设置为挂起; 或者 所述挂起承载请求消息中包括需要挂起的承载的标识,服务网关实体收到所 述挂起承载请求消息后, 将所述承载的标识对应的承载的状态设置为挂起; 或者 所述更新承载请求消息中包括 UE的标识和承载的状态, 所述承载的状态设 置为挂起, 所述服务网关实体将所述 UE的所有承载的状态设置为挂起; 或 者 rg ¾ n u ri 穴 Ή·、及 ¾^£起 载请求消息 , 所述挂起承载请求消息中包括 UE的标识, 服务网关实体收到所述挂起承载 请求消息后, 将所述 UE的所有承载的状态设置为挂起。
10、 根据权利要求 8所述的方法, 其特征在于, 所述分组域网絡的移动 性管理网元指示服务网关实体将保留的承载挂起和未保留的承载删除包括: 所述更新承载请求消息中包括挂起的承载的标识和删除的承载的标识以及 承载的状态, 对于挂起的承载, 所述承载的状态设置为挂起。 对于删除的承 载, 所述承载的状态设置为删除; 或者 所述更新承载请求消息中包括挂起的承载的标识列表和删除的承载的标识 列表; 或者 所述挂起承载请求消息中包括挂起的承载的标识列表和删除的承载的标识 列表; 或者 所述挂起承载请求消息中携带 UE的标识和删除的承载的标识列表。
11、 一种通信***, 包括分组域网絡的移动性管理网元 ( 101 ) 和分组 域网絡的接入网 ( 103 ) , 其特征在于, 当用户设备 UE从分组域网絡切换 到电路域网絡过程中,分组域网絡的接入网用于向分组域网絡的移动性管理 网元发送释放请求消息,分组域网絡的移动性管理网元用于接收分组域网絡 的接入网发送的释放请求消息, 对 UE在分组域网絡中的资源进行处理。
12、 根据权利要求 11 所述的通信***, 其特征在于, 所述分组域网絡 的接入网在接收到分组域网絡的移动性管理网元发送的切换指导消息后向 所述分组域网絡的移动性管理网元发送释放请求消息。
13、 根据权利要求 11 所述的通信***, 其特征在于, 所述分组域网絡 的接入网在接收到用户终端 UE发送的 RRC释放请求消息后向所述分组域 网絡的移动性管理网元发送释放请求消息, 所述 RRC释放请求消息为 UE 在接收到切换指导消息后向分组域网絡的接入网发送。
14、 根据权利要求 11或 12或 13所述的通信***, 其特征在于, 所述 分组域网絡的接入网还用于在向分组域网絡的移动性管理网元发送的释放 请求消息中携带指示信息, 所述指示信息指示所述释放请求的原因为 UE切 换到电路域网絡。
15、 一种通信***, 包括分组域网絡的移动性管理网元 ( 111 ) 和电路 域网絡(113 ) , 其特征在于, 当用户设备 UE从分组域网絡切换到电路域 完成消息;所述分组域网絡的移动性管理网元用于接收电路域网絡发送的切 换完成消息, 并在接收到所述切换完成消息后, 对 UE在分组域网絡中的资 源进行处理。
16、 根据权利要求 15所述的通信***, 其特征在于, 所述通信***进 一步包括电路域网絡和分组域网絡之间的交换解决功能网元,所述电路域网 絡包括接入网元和移动性管理网元, 其中
如果所述交换解决功能网元和电路域网絡的接入网元集成在一起, 则所 述电路域网絡的接入网元用于在收到 UE发送的切换完成消息后, 发送切换 完成消息到分组域网絡的移动性管理网元; 或者
如果所述交换解决功能网元和分组域网絡的移动性管理网元集成在一 切换完成消息; 电路域网絡的移动性管理网元用于在收到电路域网絡的接入 网元发送的切换完成消息后,发送清除命令消息到所述分组域网絡的移动性 管理网元; 或者
如果电路域网絡和分组域网絡之间的交换解决功能为独立网元, 则所述 电路域网絡的接入网元用于向电路域网絡的移动性管理网元发送切换完成 消息; 电路域网絡的移动性管理网元用于在收到电路域网絡的接入网元发送 的切换完成消息后, 发送清除命令消息到所述交换解决功能网元; 所述交换 解决功能网元用于在接收到电路域网絡的移动性管理网元发送的清除命令 消息后, 发送切换完成消息到分组域网絡的移动性管理网元; 或者
如果所述交换解决功能网元和电路域网絡的移动性管理网元集成在一 起,则所述电路域网絡的移动性管理网元用于在收到电路域网絡的接入网元 发送的切换完成消息后, 发送切换完成消息到分组域网絡的移动性管理网 元。
17、 一种分组域网絡中的移动性管理网元, 其特征在于, 包括接收单元 ( 121 ) 和资源处理单元( 123 ) , 其中, 接收单元用于在用户设备 UE从分 组域网絡切换到电路域网絡过程中,接收分组域网絡的接入网发送的释放请 求消息或者接收电路域网絡发送的切换完成消息; 资源处理单元用于在所述 接收单元接收到分组域网絡的接入网发送的释放请求消息或者接收到电路 域网絡发送的切换完成消息后, 对 UE在分组域网絡中的资源进行处理。
18、 根据权利要求 17所述的移动性管理网元, 其特征在于, 所述接收 单元 ( 121 ) 包括第一接收模块 ( 1211 )和 /或第二接收模块 ( 1213 ) , 其中, 第一接收模块用于在用户设备 UE从分组域网絡切换到电路域网絡过程 中, 接收分组域网絡的接入网发送的释放请求消息, 所述释放请求消息中可 以包括指示信息, 所述指示信息指示所述释放请求的原因为 UE切换到电路 域网絡;
第二接收模块用于在用户设备 UE从分组域网絡切换到电路域网絡过程 中, 接收电路域网絡发送的切换完成消息, 具体包括:
如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡 的接入网元集成在一起,则所述第二接收模块用于接收所述电路域网絡的接 入网元发送的切换完成消息; 或者
如果电路域网絡和分组域网絡之间的交换解决功能网元和分组域网絡 的移动性管理网元集成在一起,则所述第二接收模块用于接收电路域网絡的 移动性管理网元发送的清除命令消息; 或者
如果电路域网絡和分组域网絡之间的交换解决功能为独立网元, 则所述 第二接收模块用于接收所述交换解决功能网元发送的切换完成消息,其中交 换解决功能网元是在接收到电路域网絡移动性管理网元发送的清除命令消 息后, 发送所述切换完成消息之所述第二接收模块;
如果电路域网絡和分组域网絡之间的交换解决功能网元和电路域网絡 的移动性管理网元集成在一起, 则所述第二接收模块 1213用于接收所述电 路域网絡的移动性管理网元发送的切换完成消 , 。
19、 根据权利要求 17所述的移动性管理网元, 其特征在于, 所述资源 处理单元 ( 123 ) 具体包括以下模块之一或组合:
第一资源处理模块( 1231 ) , 用于发起用户隐式分离处理流程, 将 UE 从分组域网絡中分离;
第二资源处理模块( 1233 ), 用于保留 UE在分组域网絡中的所有承载, 指示服务网关实体将所述承载挂起;
第三资源处理模块( 1235 ) , 用于根据承载类型的不同, 将一部分承载 类型对应的承载发起承载删除流程删除;对于另一部分承载类型对应的承载 保留, 指示服务网关实体将保留的承载挂起;
第四资源处理模块, 用于根据承载类型的不同, 将部分承载删除, 保留 另一部分承载, 指示服务网关实体将保留的承载挂起;
第五资源处理模块, 用于指示服务网关实体将用户的所有承载挂起, 并 根据承载类型的不同, 保留部分承载, 对于另一部分承载发起承载删除流程 删除;
第六资源处理模块, 用于指示服务网关实体将用户的所有承载挂起, 并 根据承载类型的不同, 将部分承载删除, 保留另一部分承载;
第七资源处理模块, 用于根据承载类型的不同, 将部分承载删除, 保留 另一部分承载, 指示服务网关实体将保留的承载挂起和未保留的承载删除。
20、 根据权利要求 19所述的移动性管理网元, 其特征在于, 所述资源 处理单元( 123 )还包括以下模块之一或组合:第一承载挂起处理模块( 1237 )、 第二承载挂起处理模块 ( 1239 ) 、 第三承载挂起处理模块 ( 1241 )和第四承 载挂起处理模块( 1243 ) , 所述第二资源处理模块或第三资源处理模块或第 四资源处理模块将需要挂起的承载的标识发送至所述第一承载挂起处理模 块或者第二承载挂起处理模块,或者所述第二资源处理模块或第五资源处理 模块或第六资源处理模块将 UE的标识发送至所述第三承载挂起处理模块或 者第四承载挂起处理模块, 其中
第一承载挂起处理模块用于接收需要挂起的承载的标识, 向服务网关实 体发送更新承载请求消息,所述更新承载请求消息中包括需要挂起的承载的 标识和承载的状态, 所述承载的状态设置为挂起;
第二承载挂起处理模块用于接收需要挂起的承载的标识, 向服务网关实 体发送挂起承载请求消息,所述挂起承载请求消息中包括需要挂起的承载的 标识,所述挂起承载请求消息用于指示服务网关实体将所述承载的标识对应 的承载的状态设置为挂起;
第三承载挂起处理模块用于接收需要挂起的 UE的标识, 向服务网关实 体发送更新承载请求消息, 所述更新承载请求消息中包括 UE的标识和承载 的状态, 所述承载的状态设置为挂起, 所述更新承载请求消息用于指示服务 网关实体将所述 UE的所有承载的状态设置为挂起;
第四承载挂起处理模块用于接收需要挂起的 UE的标识, 向服务网关实 体发送挂起承载请求消息, 所述挂起承载请求消息中包括 UE的标识, 所述 挂起承载请求消息用于指示服务网关实体将所述 UE的所有承载的状态设置 为挂起。
21、 根据权利要求 19所述的移动性管理网元, 其特征在于, 所述第七 资源处理模块包括以下子单元之一或组合: 第一处理子单元, 用于向服务网关实体发送更新承载请求消息, 所述更 新承载请求消息中包括挂起的承载的标识和删除的承载的标识以及承载的 状态, 对于挂起的承载, 所述承载的状态设置为挂起。 对于删除的承载, 所 述承载的状态设置为删除;
第二处理子单元, 用于向服务网关实体发送更新承载请求消息, 所述更 新承载请求消息中包括挂起的承载的标识列表和删除的承载的标识列表; 第三处理子单元, 用于向服务网关实体发送挂起承载请求消息, 所述挂 起承载请求消息中包括挂起的承载的标识列表和删除的承载的标识列表; 第四处理子单元, 用于向服务网关实体发送挂起承载请求消息, 所述挂 起承载请求消息中携带 UE的标识和删除的承载的标识列表。
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