WO2014019522A1 - 挂起方法、装置及系统 - Google Patents

挂起方法、装置及系统 Download PDF

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Publication number
WO2014019522A1
WO2014019522A1 PCT/CN2013/080572 CN2013080572W WO2014019522A1 WO 2014019522 A1 WO2014019522 A1 WO 2014019522A1 CN 2013080572 W CN2013080572 W CN 2013080572W WO 2014019522 A1 WO2014019522 A1 WO 2014019522A1
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WO
WIPO (PCT)
Prior art keywords
suspend
sgw
state
mme
message
Prior art date
Application number
PCT/CN2013/080572
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English (en)
French (fr)
Inventor
杨斌
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP13825674.8A priority Critical patent/EP2882225A4/en
Publication of WO2014019522A1 publication Critical patent/WO2014019522A1/zh

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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
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
    • H04W36/00226Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB] wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to the field of communications, and in particular to a Suspend method, apparatus, and system.
  • the user performs Circuit Switched Fallback (CSFB) or Single Radio Voice Call Continuity (SRVCC).
  • CSFB Circuit Switched Fallback
  • SSVCC Single Radio Voice Call Continuity
  • the dual transmission mode is not supported.
  • the Dual Transfer Mode (referred to as the DTM) mode, the Guaranteed Rate (GBR) bearer in the Long Term Evolution (LTE) domain should be deleted, and the non-GBR bearer should be deleted. Suspended temporarily.
  • the deletion of the GBR bearer by the current protocol is that the MME notifies the SGW/PGW to send a Delete Bearer Command message, and then the PGW initiates a dedicated bearer deletion procedure on the network side. Then execute the Suspend process to suspend non-GBR bearers.
  • this Suspend process is more complex and less efficient.
  • the present invention provides a suspending method, apparatus, and system for solving the above problems, in view of the problem that the Suspend process in the related art is relatively complicated and inefficient.
  • a hang method including: the MME releasing a GBR bearer that is local to the MME, and sending a Suspend message to the SGW; wherein the Suspend message is used to indicate that the SGW is configured according to the SGW
  • the Suspend message is used to release the local GBR bearer of the SGW, and the state of the user local to the SGW is set to a Suspend state, where the Suspend state is used to indicate that the downlink data packet is not forwarded to the user;
  • the MME sets the state of the user local to the MME to the Suspend state according to the received Suspend response message from the SGW.
  • the Suspend message carries a bearer identifier, and the bearer identifier is used to indicate the GBR bearer released by the MME.
  • the method further includes: releasing, by the SGW, the The SGW local GBR bearer; the SGW sets the state of the user local to the SGW to a Suspend state.
  • the SGW further includes: the PGW receiving the SGW sending The Suspend message; the PGW releases the GBR bearer locally in the PGW according to the bearer identifier in the Suspend message, and sets the state of the user locally in the PGW to a Suspend state; The SGW sends the Suspend response message.
  • the method further includes: the PGW notifying the PCRF to release the GBR bearer locally of the PCRF.
  • the method further includes: sending, by the SGW, the Suspend response message to the MME; preferably, in the SRVCC process,
  • the bearer identifier further includes: a VB flag, where the VB flag is used to indicate that the release of the GBR bearer is caused by the SRVCC process.
  • the method further includes: the user switching from the EUTRAN to the GERAN, where the GERAN does not support the DTM.
  • a suspend method including: a SGW/PGW receives a Suspend message from an MME; and the SGW/PGW releases a GBR bearer local to the SGW/PGW according to the Suspend message, And setting the state of the user local to the SGW/PGW to a Suspend state, where the Suspend state is used to indicate that the downlink data packet is not forwarded to the user; and the SGW/PGW sends a Suspend response to the MME. Message.
  • a suspension device located in the MME, comprising: a first release module, configured to release a GBR bearer local to the user at the MME; and a first sending module configured to send a Suspend message
  • the Suspend message is used to instruct the SGW to release the GBR bearer local to the SGW according to the Suspend message, and set the state of the user local to the SGW to a Suspend state, where the Suspend
  • the first receiving module is configured to receive a Suspend response message from the SGW, and the first setting module is configured to receive the received information according to the first receiving module.
  • the Suspend response message sets the state of the user local to the MME to the Suspend state.
  • a suspension device located in the SGW/PGW, comprising: a second receiving module configured to receive a Suspend message from the MME; and a second release module configured to be configured according to the The Suspend message is used to release the local GBR bearer of the SGW/PGW; the second setting module is configured to set the state of the user local to the SGW/PGW to a Suspend state, where the Suspend state is used to indicate that the user is The downlink data packet is not forwarded; the second sending module is configured to send a Suspend response message to the MME.
  • a suspension system comprising the above-mentioned suspension device located in the MME, and further comprising the above-mentioned suspension device located in the SGW/PGW.
  • the MME is used to release the GBR bearer that is local to the MME, and the Suspend message is sent to the SGW.
  • the Suspend message is used to instruct the SGW to release the local GBR bearer of the SGW according to the Suspend message, and set the user to be in the SGW.
  • the local state is the Suspend state, where the Suspend state is used to indicate that the downlink data packet is not forwarded for the user; the MME sets the mode of the user local state in the MME to the Suspend state according to the received Suspend response message from the SGW, and the solution is solved.
  • the Suspend process in the related art is more complicated and less efficient, and the execution efficiency of the Suspend process is improved.
  • FIG. 1 is a schematic diagram of a 3GPP packet domain system architecture according to the related art
  • FIG. 2 is a flowchart of a suspending method according to an embodiment of the present invention
  • FIG. 3 is a structure of a suspending device according to an embodiment of the present invention.
  • 4 is a flow chart of another suspending method according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of another suspending device according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a Suspend process in a CSFB process according to the related art
  • FIG. 8 is a schematic diagram of a Suspend process in a CSFB process according to a first embodiment of the present invention
  • FIG. 9 is a Suspend process in a SRVCC process according to the related art
  • FIG. 10 is a schematic diagram of a Suspend process in an SRVCC process according to Embodiment 2 of the present invention.
  • FIG. 2 is a flowchart of a suspending method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps: Step S202: The MME releases the user. Local GBR bearer at the MME, and send a Suspend message to
  • the Suspend message is used to indicate that the SGW releases the local GBR bearer according to the Suspend message, and sets the state of the user locally in the SGW to a Suspend state, where the Suspend state is used to indicate that the downlink data is not forwarded to the user.
  • Message Step S204 The MME sets the state of the user local to the MME to the Suspend state according to the received Suspend response message from the SGW.
  • the MME local GBR bearer when the MME sends the Suspend message, the MME local GBR bearer is released at the same time, and after receiving the Suspend response message of the SGW, the state of the user in the MME local is set to The Suspend state, which saves half of the process by the SGW/PGW and the Suspend process initiated by the PGW in the related art, solves the problem that the Suspend process in the related technology is more complicated and less efficient, and improves the problem.
  • the execution efficiency of the Suspend process As a preferred implementation manner, the MME may notify the SGW/PGW of the released GBR bearer by carrying the bearer identifier in the Suspend message (for example, by means of the Bearer Contexts field).
  • the PGW may release the local GBR bearer of the PGW according to the bearer identifier in the Suspend message, set the state of the user locally in the PGW to the Suspend state, and then send a Suspend response message to the SGW.
  • the PGW can also notify the Policy Control and Charging Rules Function (PCRF) to release the GBR bearer locally.
  • PCRF Policy Control and Charging Rules Function
  • the bearer identifier may further include: a voice bearer (VB) tag, and the VB tag may be used to indicate The release of this GBR bearer is caused by the SRVCC process.
  • the Suspend procedure in this embodiment may be used for a user to switch from an evolved universal mobile communication system terrestrial radio access network (EUTRAN) to an enhanced data rate global mobile communication system evolved technology radio access network (GERAN), and When the GERAN does not support dual transfer mode (DTM).
  • EUTRAN evolved universal mobile communication system terrestrial radio access network
  • GERAN enhanced data rate global mobile communication system evolved technology radio access network
  • DTM dual transfer mode
  • a suspend device which is located in the mobility management entity MME, and is used to implement the above-mentioned embodiments and preferred embodiments. Let me repeat.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.
  • 3 is a structural block diagram of a suspending device according to an embodiment of the present invention. As shown in FIG. 3, the device includes: a first releasing module 32, a first transmitting module 34, a first receiving module 36, and a first setting module 38.
  • the first release module 32 is configured to release the GBR bearer that is local to the MME.
  • the first sending module 34 is connected to the first release module 32 and configured to send a Suspend message to the SGW.
  • the Suspend message is used to indicate that the SGW is configured according to the SGW.
  • the Suspend message releases the local GBR bearer of the SGW, and sets the state of the user locally in the SGW to the Suspend state, where the Suspend state is used to indicate that the downlink data packet is not forwarded to the user; the first receiving module 36, and the first sending module
  • the connection is 34, and is configured to receive the Suspend response message from the SGW.
  • the first setting module 38 is connected to the first receiving module 36, and is configured to set the state of the user locally in the MME to Suspend according to the Suspend response message received by the first receiving module 36. status.
  • the MME uses the first release module 32 to release the local GBR bearer of the MME, and receives the SGW at the first receiving module 36.
  • the state of the user in the local state of the MME is set to the Suspend state by the first setting module 38, so that the MME first notifies the SGW/PGW and then the Suspend process is initiated by the PGW, which saves half.
  • step S406 the SGW/PGW sends a Suspend response message to the MME.
  • the SGW/PGW local GBR bearer is released, and after the user is in the Suspend state of the SGW/PGW local state,
  • the MME sends a Suspend response message, so that the MME is first compared to the related art. Knowing SGW/PGW, and then launching the Suspend process by PGW, it saves half of the process, solves the problem that the Suspend process in the related technology is more complicated and less efficient, and improves the execution efficiency of the Suspend process. Corresponding to another suspending method as shown in FIG.
  • FIG. 5 is another according to an embodiment of the present invention.
  • the structural block diagram of the suspending device as shown in FIG. 5, the device includes: a second receiving module 52, a second releasing module 54, a second setting module 56, and a second transmitting module 58, and each module is described in detail below.
  • the second receiving module 52 is configured to receive the Suspend message from the MME.
  • the second release module 54 is connected to the second receiving module 52, and is configured to release the GBR local to the SGW/PGW according to the Suspend message received by the second receiving module 52.
  • the second setting module 56 is connected to the second release module 54 and configured to set the state of the user in the local state of the SGW/PGW to a Suspend state, where the Suspend state is used to indicate that the downlink data packet is not forwarded to the user;
  • the second sending module 58 is connected to the second setting module 56 and configured to send a Suspend response message to the MME.
  • a Suspend system is also provided.
  • FIG. 6 is a structural block diagram of a suspending system according to an embodiment of the present invention. As shown in FIG. 6, the system includes the MME 30 as shown in FIG. The Suspend device in the middle also includes a Suspend device located in the SGW/PGW50 as shown in FIG.
  • a simplified suspend process negotiation method is provided.
  • the deletion of the GBR bearer and the suspension of the non-GBR bearer can be completed directly through the Suspend process.
  • the processes mentioned in the following preferred embodiments may include the CSFB flow of E-UTRAN to GERAN and the SRVCC from E-UTRAN to GERAN without DTM support flow of MO/MT call - No PS HO support.
  • the SGSN can be either a GnGp SGSN or an S4 SGSN.
  • the user initiates the destination radio access type (Radio Access Type, RAT for short) to GERAN.
  • the CSFB and the SRVCC process if the DTM mode is not supported, the user performs the voice service in the CS domain of the GERAN access mode, and the MME performs the Suspend process to initiate the deletion of the GBR bearer and the non-GBR bearer for the bearer of the user camping in the LTE domain. Suspend, perform local deletion for GBR bearer deletion, and do not need PGW to initiate bearer deletion process in reverse. This way of processing simplifies the processing of the process, reducing the S11 port and S5/S8
  • the message of the interface reduces the process of the dedicated bearer deletion initiated by the PGW, and reduces the conflict process caused by the proprietary bearer deletion process initiated by the PGW.
  • FIG. 7 is a schematic diagram of the Suspend process in the CSFB process according to the related art.
  • the user initiates the CSFB process of the destination RAT as GERAN, because If the user or GERAN does not support the DTM mode, the UE initiates a Suspend process in GERAN, and the SGSN forwards the Suspend message to the MME to initiate Suspend.
  • FIG. 8 is a schematic diagram of a Suspend process in a CSFB process according to the first embodiment of the present invention. As shown in FIG.
  • the eNodeB initiates an S1 connection release in the process because the PS service is unavailable, and the MME receives the message and locally deletes the GBR bearer.
  • the Sspend message is sent to the SGW, and the SGW locally deletes the GBR bearer to send the Suspend message to the PGW.
  • the PGW locally deletes the GBR bearer and notifies the PCRF.
  • the PGW returns a Suspend response message to the SGW to set the user state to the Suspend state and does not forward the downlink data packet, and the SGW sets the user state.
  • the Suspend response message is returned to the MME for the Suspend state, and the MME sets the user state to the Suspend state.
  • the processing flow of the new SGSN and MSC Server remains unchanged. As shown in FIG.
  • Step S802 A user registered in the LTE domain association (the location update of the CS is completed through LTE) initiates a call flow of the MO or the MT, and performs a call process to the GERAN access mode.
  • Step S804 the user initiates a Suspend process in the GERAN access mode user or the BSC does not support the DTM; in step S806, the eNodeB initiates an S1 connection release message to the MME in the CSFB process, and the carrying reason PS service is unavailable; Step S808, The MME performs the Suspend process to delete the GBR bearer, sends the Suspend message to the SGW, the SGW deletes the GBR bearer, and sends the Suspend message to the PGW. The PGW deletes the GBR bearer and notifies the PCRF bearer to delete. The PGW also sets the user state to the Suspend state and does not forward the downlink data packet. The Suspend response message is sent to the SGW.
  • Step S810 If the user completes the voice service in the CS domain of the GERAN access mode, the RAU process is completed in the SGSN. Registration and switching non-GBR bearers to the SGSN, or performing TAU back to LTE.
  • Embodiment 2 The preferred embodiment is described by taking a functional description of the SRVCC flow as an example.
  • 9 is a schematic diagram of a Suspend process in the SRVCC process according to the related art. As shown in FIG. 9, the user initiates an SRVCC process in which the target RAT is GERAN.
  • FIG. 10 is a schematic diagram of a Suspend flow in an SRVCC process according to Embodiment 2 of the present invention.
  • the MME receives the CS to PS SRVCC Response message returned by the MSC Server as successful, and the MME locally deletes the GBR bearer and sends a Suspend message to the SGW.
  • the SGW locally deletes the GBR bearer and sends the Suspend message to the PGW.
  • the GBR bearer is deleted and the PCRF is sent.
  • the PGW returns a Suspend response message to the SGW to set the user state to the Suspend state and does not forward the downlink data packet.
  • the SGW sets the user state to the Suspend state to return the Suspend response message to the MME, and the MME sets the user state to the Suspend state.
  • the processing flow of the new office SGSN and MSC Server remains unchanged. As shown in FIG.
  • the Suspend process includes the following steps: Step S1002: A user who uses an IMS service in an LTE domain moves to an access area of the GERAN to initiate an IMS mode in which the SRVCC process switches voice to the CS.
  • step S1004 the MME receives the eNodeB. Sending an SRVCC handover request message, determining that the type is SRVCC from E-UTRAN to GERAN without DTM support, and sending an SRVCC PS to CS Request message to notify the MSC Server to perform a handover procedure of the SRVCC; Step S1006, the MSC Server sends after the SRVCC handover of the user is completed.
  • Step S1010 If the user completes the IMS voice service in the CS domain of the GERAN access mode, the RAU process is completed in the SGSN. Register and switch the non-GBR bearer to the SGSN, or perform TAU back to LTE.
  • software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.
  • a storage medium is also provided, the software being stored, including but not limited to an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.

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Abstract

本发明公开了一种挂起方法、装置及系统,其中,该方法包括:MME释放用户在该MME本地的GBR承载,并发送Suspend消息给SGW;其中,该Suspend消息用于指示SGW根据Suspend消息释放该SGW本地的GBR承载,并设置该用户在该SGW本地的状态为Suspend状态,其中,Suspend状态用于指示对于该用户不转发下行数据报文;MME根据接收到的来自SGW的Suspend响应消息设置用户在MME本地的状态为Suspend状态。通过本发明,解决了相关技术中的Suspend流程较为复杂且效率较低的问题,提高了Suspend流程的执行效率。

Description

挂起方法、 装置及系统
技术领域 本发明涉及通信领域, 具体而言, 涉及一种挂起 (Suspend) 方法、 装置及系统。 背景技术 第三代合作伙伴计划(3rd Generation Partnership Project, 简称为 3GPP)的分组域
(Packet Domain)由 UMTS陆地无线接入网(UTRAN, UMTS Terrestrial Radio Access Network ) 全球移动通信系统(Global System for Mobile communications,简称为 GSM) 增强型数据速率 GSM演进技术(Enhanced Data Rate for GSM Evolution,简称为 EDGE) 无线接入网络 (GSM EDGE Radio Access Network, 简称为 GERAN), 服务 GPRS支撑 节点( Serving GPRS Support Node,简称为 SGSN )、网关 GPRS支撑节点( Gateway GPRS Support Node,简称为 GGSN)、归属位置寄存器(Home Location Register,简称为 HLR) 及其他支撑节点组成。 图 1是根据相关技术的 3GPP分组域系统架构的示意图。 如图 1所示, SGSN负 责移动性管理、 会话管理、 分组数据包的转发、 计费等功能; GGSN负责计费、 分组 数据包的转发等功能; 归属用户服务器 (Home Subscriber Server, 简称为 HSS) 负责 存储用户签约数据以及签约数据的分发; GERAN负责 Gb/Iu模式下的无线接入、无线 资源管理以及数据包转发等; 服务网关 (Service Gateway, 简称为 S-GW) 负责计费、 会话管理、 分组数据包的转发等功能; 分组数据网络网关 (Packet Data Network Gateway, 简称为 P-GW) 负责计费、 会话管理、 分组数据包的转发等功能、 专有承载 的建立; MSC Server 负责用户语音的发起和 IP 多媒体子系统 (IP Multimedia Sub-system, 简称为 IMS) 语音会话的建立。 用户执行电路交换回退 (Circuit Switched Fallback, 简称为 CSFB) 或者单一无线 语音呼叫连续性 (Single Radio Voice Call Continuity, 简称为 SRVCC), 当选择的目的 接入方式是 GERAN如果不支持双传送模式(Dual Transfer Mode,简称为 DTM)方式, 那么对于用户暂时驻留来长期演进 (Long Term Evolution, 简称为 LTE) 域内的保证 速率 (Guaranteed Bit Rate, 简称为 GBR) 承载应该删除, 对于非 GBR承载应该暂时 挂起。 目前协议对于 GBR承载的删除是 MME通知 SGW/PGW发送 Delete Bearer Command消息,然后由 PGW发起网络侧的专有承载删除流程。然后执行 Suspend流程, 对非 GBR承载挂起。 但是, 这种 Suspend流程较为复杂, 效率较低。 针对相关技术中的 Suspend流程较为复杂且效率较低的问题, 目前尚未提出有效 的解决方案。 发明内容 针对相关技术中的 Suspend流程较为复杂且效率较低的问题, 本发明提供了一种 挂起方法、 装置及系统, 以至少解决上述问题。 根据本发明的一个方面,提供了一种挂起方法,包括: MME释放用户在所述 MME 本地的 GBR承载, 并发送 Suspend消息给 SGW; 其中, 所述 Suspend消息用于指示 所述 SGW根据所述 Suspend消息释放所述 SGW本地的 GBR承载, 并设置所述用户 在所述 SGW本地的状态为 Suspend状态,其中,所述 Suspend状态用于指示对于所述 用户不转发下行数据报文;所述 MME根据接收到的来自所述 SGW的 Suspend响应消 息设置所述用户在所述 MME本地的状态为 Suspend状态。 优选地,所述 Suspend消息中携带有承载标识,所述承载标识用于表示所述 MME 释放的 GBR承载; 在发送 Suspend消息给 SGW之后, 还包括: 所述 SGW根据所述 承载标识释放所述 SGW本地的 GBR承载; 所述 SGW设置所述用户在所述 SGW本 地的状态为 Suspend状态。 优选地, 在所述 SGW根据所述承载标识释放所述 SGW本地的 GBR承载之后, 所述 SGW设置所述用户在所述 SGW本地的状态为 Suspend状态之前,还包括: PGW 接收所述 SGW发送的所述 Suspend消息; 所述 PGW根据所述 Suspend消息中的所述承载标识释放所述 PGW本地的 GBR 承载, 并设置所述用户在所述 PGW本地的状态为 Suspend状态; 所述 PGW向所述 SGW发送所述 Suspend响应消息。 优选地, 在所述 PGW向所述 SGW发送所述 Suspend响应消息之前, 还包括: 所 述 PGW通知 PCRF释放所述 PCRF本地的 GBR承载。 优选地,在所述 SGW设置所述用户在所述 SGW本地的状态为 Suspend状态之后, 还包括: 所述 SGW向所述 MME发送所述 Suspend响应消息; 优选地, 在 SRVCC流程中, 所述承载标识中还包括: VB标记, 所述 VB标记用 于表示 GBR承载的释放是由所述 SRVCC流程引起的。 优选地, 在 MME释放用户在所述 MME本地的 GBR承载, 并发送 Suspend消息 给 SGW之前, 还包括: 所述用户从 EUTRAN向 GERAN切换, 其中, 所述 GERAN 不支持 DTM。 根据本发明的另一方面, 提供了一种挂起方法, 包括: SGW/PGW接收到来自 MME的 Suspend消息; 所述 SGW/PGW根据所述 Suspend消息释放所述 SGW/PGW 本地的 GBR承载, 并设置所述用户在所述 SGW/PGW本地的状态为 Suspend状态, 其中,所述 Suspend状态用于指示对于所述用户不转发下行数据报文;所述 SGW/PGW 向所述 MME发送 Suspend响应消息。 根据本发明的再一方面, 提供了一种挂起装置, 位于 MME中, 包括: 第一释放 模块, 设置为释放用户在所述 MME本地的 GBR承载; 第一发送模块, 设置为发送 Suspend消息给 SGW; 其中, 所述 Suspend消息用于指示所述 SGW根据所述 Suspend 消息释放所述 SGW本地的 GBR承载, 并设置所述用户在所述 SGW本地的状态为 Suspend状态, 其中, 所述 Suspend状态用于指示对于所述用户不转发下行数据报文; 第一接收模块, 设置为接收来自所述 SGW的 Suspend响应消息; 第一设置模块, 设 置为根据所述第一接收模块接收到的所述 Suspend 响应消息设置所述用户在所述 MME本地的状态为 Suspend状态。 根据本发明的再一方面, 还提供了一种挂起装置, 位于 SGW/PGW中, 包括: 第 二接收模块, 设置为接收到来自 MME的 Suspend消息; 第二释放模块, 设置为根据 所述 Suspend消息释放所述 SGW/PGW本地的 GBR承载; 第二设置模块, 设置为设 置所述用户在所述 SGW/PGW本地的状态为 Suspend状态, 其中, 所述 Suspend状态 用于指示对于所述用户不转发下行数据报文; 第二发送模块, 设置为向所述 MME发 送 Suspend响应消息。 根据本发明的还一方面, 提供了一种挂起系统, 包括上述位于 MME中的挂起装 置, 还包括上述位于 SGW/PGW中的挂起装置。 通过本发明, 采用 MME释放用户在该 MME本地的 GBR承载, 并发送 Suspend 消息给 SGW; 其中, 该 Suspend消息用于指示 SGW根据 Suspend消息释放该 SGW 本地的 GBR承载,并设置该用户在该 SGW本地的状态为 Suspend状态,其中, Suspend 状态用于指示对于该用户不转发下行数据报文; MME 根据接收到的来自 SGW 的 Suspend响应消息设置用户在 MME本地的状态为 Suspend状态的方式,解决了相关技 术中的 Suspend流程较为复杂且效率较低的问题, 提高了 Suspend流程的执行效率。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是根据相关技术的 3GPP分组域系统架构的示意图; 图 2是根据本发明实施例的挂起方法的流程图; 图 3是根据本发明实施例的挂起装置的结构框图; 图 4是根据本发明实施例的另一种挂起方法的流程图; 图 5是根据本发明实施例的另一种挂起装置的结构框图; 图 6是根据本发明实施例的挂起系统的结构框图; 图 7是根据相关技术 CSFB流程中的 Suspend流程示意图; 图 8是根据本发明实施例一的 CSFB流程中的 Suspend流程示意图; 图 9是根据相关技术 SRVCC流程中的 Suspend流程示意图; 图 10是根据本发明实施例二的 SRVCC流程中的 Suspend流程示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 在本实施例中提供了一种挂起(Suspend)方法, 图 2是根据本发明实施例的挂起 方法的流程图, 如图 2所示, 该方法包括如下步骤: 步骤 S202, MME释放用户在该 MME本地的 GBR承载, 并发送 Suspend消息给
SGW; 其中, 该 Suspend消息用于指示 SGW根据 Suspend消息释放该 SGW本地的 GBR承载, 并设置该用户在该 SGW本地的状态为 Suspend状态, 其中, Suspend状态 用于指示对于该用户不转发下行数据报文; 步骤 S204, MME根据接收到的来自 SGW的 Suspend响应消息设置用户在 MME 本地的状态为 Suspend状态。 本实施例通过上述步骤, 在 MME发送 Suspend消息之时, 就同时将该 MME本 地的 GBR承载进行了释放, 并在接收到 SGW的 Suspend响应消息之后, 将该用户在 该 MME 本地的状态设置为 Suspend 状态, 从而相比相关技术中 MME 先通知 SGW/PGW, 再由 PGW发起 Suspend流程的方式, 节省了一半的流程, 解决了相关技 术中的 Suspend流程较为复杂且效率较低的问题, 提高了 Suspend流程的执行效率。 作为一种优选实施方式, MME可以通过在 Suspend消息中携带承载标识 (例如, 可以通过 Bearer Contexts字段的方式实现) 的方式, 来通知 SGW/PGW需要进行释放 的 GBR承载。例如,承载标识可以表示 MME释放的 GBR承载,在这种情况下, SGW 可以根据该承载标识对 SGW本地的 GBR承载进行释放, 并将该用户在 SGW本地的 状态设置为 Suspend状态。 优选地, 在将该用户在本地的状态设置为 Suspend状态之 后, SGW可以向 MME发送 Suspend响应消息。 优选地, SGW释放本地的 GBR承载之后, 可以先向 PGW发送 Suspend消息, 在接收到 PGW的 Suspend响应消息之后, 再执行将用户在 SGW本地的状态设置为 Suspend状态的操作。 PGW接收到 SGW发送的 Suspend消息之后, 可以根据 Suspend 消息中的承载标识释放 PGW本地的 GBR承载, 并设置用户在 PGW本地的状态为 Suspend状态, 然后向 SGW发送 Suspend响应消息。 此外, 优选地, PGW释放 PGW本地的 GBR承载之后, 还可以通知策略控制与 计费规则功能逻辑实体 (Policy and Charging Rules Function, 简称为 PCRF) 释放该 PCRF本地的 GBR承载。 作为一种优选实施方式, 当该 Suspend 流程用于单一无线语音呼叫连续性 ( SRVCC) 流程中的情况下, 上述承载标识中还可以包括: 语音承载 (VB) 标记, 该 VB标记可以用于表示该 GBR承载的释放是由 SRVCC流程引起的。 优选地, 本实施例中的 Suspend流程可以用于用户从演进的通用移动通信系统陆 地无线接入网 (EUTRAN) 向增强型数据速率全球移动通信系统演进技术无线接入网 (GERAN) 切换, 并且当该 GERAN不支持双传送模式 (DTM) 的情况。 对应于上述挂起方法, 在本实施例中提供了一种挂起(Suspend)装置, 位于移动 性管理实体 MME中, 该装置用于实现上述实施例及优选实施方式, 已经进行过说明 的不再赘述。如以下所使用的,术语"模块"可以实现预定功能的软件和 /或硬件的组合。 尽管以下实施例所描述的装置较佳地以软件来实现, 但是硬件, 或者软件和硬件的组 合的实现也是可能并被构想的。 图 3是根据本发明实施例的挂起装置的结构框图, 如图 3所示, 该装置包括: 第 一释放模块 32、 第一发送模块 34、 第一接收模块 36和第一设置模块 38, 下面对各个 模块进行详细说明。 第一释放模块 32, 设置为释放用户在该 MME本地的 GBR承载; 第一发送模块 34, 与第一释放模块 32相连, 设置为发送 Suspend消息给 SGW; 其中, 该 Suspend 消息用于指示 SGW根据 Suspend消息释放该 SGW本地的 GBR承载, 并设置用户在 SGW本地的状态为 Suspend状态, 其中, 该 Suspend状态用于指示对于用户不转发下 行数据报文; 第一接收模块 36, 与第一发送模块 34相连, 设置为接收来自 SGW的 Suspend响应消息; 第一设置模块 38, 与第一接收模块 36相连, 设置为根据第一接收 模块 36接收到的 Suspend响应消息设置用户在 MME本地的状态为 Suspend状态。 本实施例通过上述模块, MME在第一发送模块 34发送 Suspend消息之时, 就同 时使用第一释放模块 32将该 MME本地的 GBR承载进行了释放, 并在第一接收模块 36接收到 SGW的 Suspend响应消息之后, 通过第一设置模块 38将该用户在该 MME 本地的状态设置为 Suspend状态, 从而相比相关技术中 MME先通知 SGW/PGW, 再 由 PGW发起 Suspend流程的方式, 节省了一半的流程, 解决了相关技术中的 Suspend 流程较为复杂且效率较低的问题, 提高了 Suspend流程的执行效率。 在本实施例中, 还提供了另一种挂起(Suspend)方法, 图 4是根据本发明实施例 的另一种挂起方法的流程图, 如图 4所示, 该方法包括如下步骤: 步骤 S402, SGW/PGW接收到来自 MME的 Suspend消息; 步骤 S404, SGW/PGW根据 Suspend消息释放 SGW/PGW本地的 GBR承载, 并 设置用户在该 SGW/PGW本地的状态为 Suspend状态, 其中, 该 Suspend状态用于指 示对于用户不转发下行数据报文; 步骤 S406, SGW/PGW向 MME发送 Suspend响应消息。 本实施例通过上述步骤,在 SGW/PGW接收到 Suspend消息之后,将该 SGW/PGW 本地的 GBR承载进行了释放, 并在将该用户在该 SGW/PGW 本地的状态设置为 Suspend状态之后, 向 MME发送 Suspend响应消息, 从而相比相关技术中 MME先通 知 SGW/PGW, 再由 PGW发起 Suspend流程的方式, 节省了一半的流程, 解决了相关 技术中的 Suspend流程较为复杂且效率较低的问题,提高了 Suspend流程的执行效率。 对应于如图 4 所示的另一种挂起方法, 在本实施例中还提供了另一种挂起 ( Suspend) 装置, 位于 SGW/PGW中, 图 5是根据本发明实施例的另一种挂起装置 的结构框图, 如图 5所示, 该装置包括: 第二接收模块 52、 第二释放模块 54、 第二设 置模块 56和第二发送模块 58, 下面对各个模块进行详细说明。 第二接收模块 52, 设置为接收到来自 MME的 Suspend消息; 第二释放模块 54, 与第二接收模块 52相连, 设置为根据第二接收模块 52接收的 Suspend消息释放该 SGW/PGW本地的 GBR承载; 第二设置模块 56, 与第二释放模块 54相连, 设置为设 置用户在该 SGW/PGW本地的状态为 Suspend状态, 其中, 该 Suspend状态用于指示 对于用户不转发下行数据报文; 第二发送模块 58, 与第二设置模块 56相连, 设置为 向 MME发送 Suspend响应消息。 在本实施例中还提供了一种挂起(Suspend)系统, 图 6是根据本发明实施例的挂 起系统的结构框图,如图 6所示,该系统包括如图 3所示的位于 MME30中的 Suspend 装置, 还包括如图 5所示的位于 SGW/PGW50中的 Suspend装置。 下面结合优选实施例进行说明, 以下优选实施例结合了上述实施例及其优选实施 方式。 在本优选实施例中提供了一种简化的 suspend流程协商方法, 下面以在 LTE领域 内用户进行语音业务时, 切换到 2/3G网络对于承载 Suspend流程的优化进行说明。在 该简化流程中, 可以直接通过 Suspend流程完成 GBR承载的删除和非 GBR承载的挂 起。 以下优选实施例中提及的流程可以包括 MO/MT call - No PS HO support 的 E-UTRAN to GERAN 的 CSFB流程和 SRVCC from E-UTRAN to GERAN without DTM support流程。 SGSN可以为 GnGp SGSN也可以为 S4 SGSN。 在用户发起目的无线接入类型 (Radio Access Type, 简称为 RAT) 为 GERAN的
CSFB和 SRVCC流程, 如果不支持 DTM方式, 用户在 GERAN接入方式的 CS域执 行语音业务,那么对于驻留在 LTE域的用户的承载, MME执行 Suspend流程发起 GBR 承载的删除和非 GBR承载的挂起, 对于 GBR承载删除执行本地删除, 不需要 PGW 反向发起承载删除流程。 这样的处理方式简化了流程的处理, 减少了 S11 口和 S5/S8 接口的消息, 减少了 PGW发起的专有承载删除流程, 减少了 PGW发起的专有承载删 除流程带来的冲突流程的处理。 实施例一 本优选实施例以关于 CSFB流程的功能描述为例进行说明, 图 7是根据相关技术 CSFB流程中的 Suspend流程示意图, 如图 7所示, 用户发起目的 RAT为 GERAN的 CSFB流程,由于用户或者 GERAN不支持 DTM方式,那么 UE在 GERAN发起 Suspend 流程, SGSN转发 Suspend消息到 MME发起 Suspend。 图 8是根据本发明实施例一的 CSFB流程中的 Suspend流程示意图, 如图 8所示, eNodeB在流程中会发起 S1连接 释放原因为 PS业务不可用, MME收到了该消息本地删除 GBR承载发送 Suspend消 息给 SGW,SGW本地删除 GBR承载发送 Suspend消息到 PGW, PGW本地删除 GBR 承载并通知 PCRF, PGW返回 Suspend 响应消息给 SGW设置用户状态为 Suspend态 且不转发下行数据报文, SGW设置用户状态为 Suspend状态返回 Suspend响应消息给 MME, MME设置用户状态为 Suspend状态。新 SGSN和 MSC Server的处理流程不变。 如图 8所示, 该 Suspend流程包括如下步骤: 步骤 S802, 在 LTE域联合(通过 LTE完成了 CS的位置更新)注册的用户, 发起 了 MO或者 MT的呼叫流程, 执行到 GERAN接入方式的 CSFB; 步骤 S804,由于在 GERAN接入方式用户或者 BSC不支持 DTM,用户发起 Suspend 流程; 步骤 S806, eNodeB在该 CSFB流程中发起 S1连接释放消息到 MME, 携带原因 PS业务不可用; 步骤 S808, MME执行 Suspend流程删除 GBR承载, 发送 Suspend消息到 SGW, SGW删除 GBR承载, 发送 Suspend消息到 PGW, PGW删除 GBR承载且通知 PCRF 承载删除, PGW同时设置用户状态为 Suspend态不转发下行数据报文发送 Suspend响 应消息给 SGW, SGW设置用户状态为 Suspend发送 Suspend消息给 MME, MME设 置用户状态为 Suspend状态; 步骤 S810, 用户如果在 GERAN接入方式的 CS域完成了语音业务, 执行 RAU 流程完成在 SGSN的注册并且把非 GBR承载切换到 SGSN,或者执行 TAU返回 LTE。 实施例二 本优选实施例以关于 SRVCC流程的功能描述为例进行说明。 图 9是根据相关技 术 SRVCC流程中的 Suspend流程示意图,如图 9所示,用户发起目的 RAT为 GERAN 的 SRVCC流程, 由于用户或者 GERAN不支持 DTM方式, 那么 UE在 GERAN发起 Suspend流程, SGSN转发 Suspend消息到 MME发起 Suspend。 图 10是根据本发明实 施例二的 SRVCC流程中的 Suspend流程示意图,如图 10所示, MME收到了 MSC Server 返回的 CS to PS SRVCC Response消息为成功, MME本地删除 GBR承载发送 Suspend 消息给 SGW并且对于 QCI=1的承载携带 VB标记说明是由于 SRVCC导致的承载删 除, SGW本地删除 GBR承载发送 Suspend消息到 PGW并且对于 QCI=1的承载携带 VB标记说明是由于 SRVCC导致的承载删除, PGW本地删除 GBR承载并通知 PCRF, PGW返回 Suspend 响应消息给 SGW设置用户状态为 Suspend态且不转发下行数据报 文, SGW设置用户状态为 Suspend状态返回 Suspend响应消息给 MME, MME设置用 户状态为 Suspend状态。 新局 SGSN和 MSC Server的处理流程不变。 如图 10所示, 该 Suspend流程包括如下步骤: 步骤 S1002, 在 LTE域使用 IMS业务的用户, 移动到了 GERAN的接入区域发起 SRVCC流程切换语音到 CS的 IMS方式; 步骤 S1004,MME收到了 eNodeB发送 SRVCC切换请求消息,判断类型为 SRVCC from E-UTRAN to GERAN without DTM support,发送 SRVCC PS to CS Request消息通 知 MSC Server执行 SRVCC的切换流程; 步骤 S1006, MSC Server在用户的 SRVCC切换完成之后, 发送 SRVCC PS to CS Response消息给 MME; 步骤 SI 008, MME判断该流程是 SRVCC from E-UTRAN to GERAN without DTM support执行 Suspend流程删除 GBR承载,发送 Suspend消息到 SGW并且对于 QCI=1 的承载携带 VB标记说明是由于 SRVCC导致的承载删除, SGW删除 GBR承载, 发 送 Suspend消息到 PGW并且对于 QCI=1的承载携带 VB标记说明是由于 SRVCC导致 的承载删除, PGW删除 GBR承载且通知 PCRF承载删除, PGW同时设置用户状态为 Suspend态不转发下行数据报文发送 Suspend响应消息给 SGW, SGW设置用户状态为 Suspend发送 Suspend消息给 MME, MME设置用户状态为 Suspend状态; 步骤 S1010, 用户如果在 GERAN接入方式的 CS域完成了 IMS语音业务, 执行 RAU流程完成在 SGSN的注册并且把非 GBR承载切换到 SGSN, 或者执行 TAU返回 LTE。 在另外一个实施例中, 还提供了一种软件, 该软件用于执行上述实施例及优选实 施例中描述的技术方案。 在另外一个实施例中, 还提供了一种存储介质, 该存储介质中存储有上述软件, 该存储介质包括但不限于光盘、 软盘、 硬盘、 可擦写存储器等。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 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 书
1. 一种挂起 Suspend方法, 包括:
移动性管理实体 MME释放用户在所述 MME本地的保证速率 GBR承载, 并发送 Suspend消息给服务网关 SGW; 其中, 所述 Suspend消息用于指示所述 SGW根据所述 Suspend消息释放所述 SGW本地的 GBR承载, 并设置所述用 户在所述 SGW本地的状态为 Suspend状态,其中,所述 Suspend状态用于指示 对于所述用户不转发下行数据报文;
所述 MME根据接收到的来自所述 SGW的 Suspend响应消息设置所述用户 在所述 MME本地的状态为 Suspend状态。
2. 根据权利要求 1所述的方法, 其中, 所述 Suspend消息中携带有承载标识, 所 述承载标识用于表示所述 MME释放的 GBR承载;在发送 Suspend消息给服务 网关 SGW之后, 还包括:
所述 SGW根据所述承载标识释放所述 SGW本地的 GBR承载; 所述 SGW设置所述用户在所述 SGW本地的状态为 Suspend状态。
3. 根据权利要求 2所述的方法, 其中, 在所述 SGW根据所述承载标识释放所述 SGW本地的 GBR承载之后,所述 SGW设置所述用户在所述 SGW本地的状态 为 Suspend状态之前, 还包括:
分组数据网络网关 PGW接收所述 SGW发送的所述 Suspend消息; 所述 PGW根据所述 Suspend消息中的所述承载标识释放所述 PGW本地的 GBR承载, 并设置所述用户在所述 PGW本地的状态为 Suspend状态;
所述 PGW向所述 SGW发送所述 Suspend响应消息。
4. 根据权利要求 3所述的方法,其中,在所述 PGW向所述 SGW发送所述 Suspend 响应消息之前, 还包括:
所述 PGW通知策略控制与计费规则功能逻辑实体 PCRF释放所述 PCRF 本地的 GBR承载。
5. 根据权利要求 2所述的方法,其中,在所述 SGW设置所述用户在所述 SGW本 地的状态为 Suspend状态之后, 还包括: 所述 SGW向所述 MME发送所述 Suspend响应消息;
6. 根据权利要求 2至 5中任一项所述的方法, 其中, 在单一无线语音呼叫连续性 SRVCC流程中, 所述承载标识中还包括: 语音承载 VB标记, 所述 VB标记用 于表示 GBR承载的释放是由所述 SRVCC流程引起的。
7. 根据权利要求 1至 6中任一项所述的方法,其中,在 MME释放用户在所述 MME 本地的 GBR承载, 并发送 Suspend消息给 SGW之前, 还包括:
所述用户从演进的通用移动通信系统陆地无线接入网 EUTRAN 向增强型 数据速率全球移动通信系统演进技术无线接入网 GERAN 切换, 其中, 所述 GERAN不支持双传送模式 DTM。
8. 一种挂起 Suspend方法, 包括:
服务网关 SGW/分组数据网络网关 PGW接收到来自移动性管理实体 MME 的 Suspend消息;
所述 SGW/PGW根据所述 Suspend消息释放所述 SGW/PGW本地的保证速 率 GBR承载, 并设置所述用户在所述 SGW/PGW本地的状态为 Suspend状态, 其中, 所述 Suspend状态用于指示对于所述用户不转发下行数据报文;
所述 SGW/PGW向所述 MME发送 Suspend响应消息。
9. 一种挂起 Suspend装置, 位于移动性管理实体 MME中, 包括:
第一释放模块, 设置为释放用户在所述 MME本地的保证速率 GBR承载; 第一发送模块, 设置为发送 Suspend消息给服务网关 SGW; 其中, 所述 Suspend消息用于指示所述 SGW根据所述 Suspend消息释放所述 SGW本地的 GBR承载, 并设置所述用户在所述 SGW本地的状态为 Suspend状态, 其中, 所述 Suspend状态用于指示对于所述用户不转发下行数据报文;
第一接收模块, 设置为接收来自所述 SGW的 Suspend响应消息; 第一设置模块, 设置为根据所述第一接收模块接收到的所述 Suspend响应 消息设置所述用户在所述 MME本地的状态为 Suspend状态。
10. 一种挂起 Suspend装置,位于服务网关 SGW/分组数据网络网关 PGW中,包括: 第二接收模块,设置为接收到来自移动性管理实体 MME的 Suspend消息; 第二释放模块, 设置为根据所述 Suspend消息释放所述 SGW/PGW本地的 GBR承载;
第二设置模块, 设置为设置所述用户在所述 SGW/PGW 本地的状态为 Suspend状态, 其中, 所述 Suspend状态用于指示对于所述用户不转发下行数 据报文;
第二发送模块, 设置为向所述 MME发送 Suspend响应消息。
11. 一种挂起 Suspend系统, 包括如权利要求 9所述的位于移动性管理实体 MME 中的 Suspend装置, 还包括如权利要求 10所述的位于服务网关 SGW/分组数据 网络网关 PGW中的 Suspend装置。
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