WO2017173882A1 - 一种对核心网标识资源的管理方法及相关装置 - Google Patents
一种对核心网标识资源的管理方法及相关装置 Download PDFInfo
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- WO2017173882A1 WO2017173882A1 PCT/CN2017/072978 CN2017072978W WO2017173882A1 WO 2017173882 A1 WO2017173882 A1 WO 2017173882A1 CN 2017072978 W CN2017072978 W CN 2017072978W WO 2017173882 A1 WO2017173882 A1 WO 2017173882A1
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- core network
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- 230000004044 response Effects 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 43
- 238000012545 processing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000007792 addition Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for aligning core network identification resources.
- the MME UE S1AP ID is a S1 coupled link that uniquely identifies a User Equipment (UE) in the Core network.
- UE User Equipment
- eNodeB Evolved Node B
- the S1AP identification protocol has an explicit check request, if the S1AP identifier conflict is detected in the same base station, the related user equipment needs to be released, and an error indication needs to be sent to the core network.
- the core network receives the “path switch request”, where the path switch request carries the source side S1AP identifier information, and the core After receiving the network, the network assigns a new S1AP identification information, sends a "path switch response", establishes a new S1UE dedicated coupling link, and releases the S1AP identification resource of the core network user on the switching source side.
- the core network sends a “path switch response” to release the S1AP identity resource of the core network user on the handover source side.
- the “path switch response” does not reach the X2 handover target side eNodeB in time.
- the X2 switching target side cannot notify the X2 switching source side to release the UE context in time.
- the switching source side eNodeB considers that the core network user S1AP identifier still exists, and if the switching source side eNodeB has other terminal access, the core network may The S1AP identifier of the core network user that has just been released is assigned to the new UE, which causes the eNodeB side to check the identity of the S1AP of the core network user, and the access failure of the terminal and the handover fails. And when there are more users, the greater the probability of the above failure, the greater the impact on the user experience.
- the present invention provides a management method and related device for aligning an Evolved Node B (eNodeB) with an identification resource of a core network, so as to solve the problem that the user S1AP of the eNodeB side and the core network side is not identified due to network delay and the like. Alignment causes a problem of base station handover or access failure of the user equipment.
- eNodeB Evolved Node B
- An aspect of the present invention provides a method for managing a core network identifier resource, where the method includes an Evolved Node B (eNodeB) side, and the method includes
- eNodeB Evolved Node B
- the second context release indication carries a pre-released S1AP identifier.
- a further aspect of the present invention provides a method for managing a core network identification resource.
- the method includes:
- Reallocating the identity resource is initiated according to the second context release indication.
- the second context release indication carries a pre-released S1AP identifier.
- the method further includes: releasing the identifier resource directly when the second context release indication is not received within a predetermined time after the path switch request response is sent.
- a still further aspect of the present invention provides a device for managing a core network identifier resource, where the device is disposed on a source base station eNodeB side, and the device includes:
- a first receiving unit configured to receive a first context release indication sent by the target base station eNodeB
- a processing unit configured to release the identifier resource according to the first context release indication, and send a second context release indication to the core network after the release is completed.
- the second context release indication carries a pre-released S1AP identifier.
- Another aspect of the present invention provides another apparatus for managing a core network identification resource, where the apparatus is disposed on a core network side, including:
- a second receiving unit configured to receive a second context release indication sent by the source base station eNodeB
- an allocating unit configured to start reallocation of the identifier resource according to the second context release indication.
- the second context release indication carries a pre-released S1AP identifier.
- the second receiving unit is further configured to trigger the allocating unit when the second context release indication is not received within a predetermined time after the path switch request response is sent;
- the allocating unit is further configured to directly release the identifier resource when triggered by the second receiving unit.
- the source base station eNodeB of the present invention After receiving the first context release indication sent by the target base station, the source base station eNodeB of the present invention releases the local identifier resource, and after the identity resource is released, instructs the core network to start the S1AP identifier resource redistribution on the core network side, thereby The problem that the base station handover or access failure of the user equipment fails due to the misalignment of the user S1AP identifiers on the eNodeB side and the core network side is avoided, and the user experience is greatly improved.
- FIG. 1 is a schematic flowchart of a method for aligning management of core network resources according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of another method for aligning management of core network resources according to an embodiment of the present invention
- FIG. 3 is a schematic flowchart of still another method for aligning core network resources according to an embodiment of the present invention.
- FIG. 4 is a schematic flowchart of still another method for aligning management of core network resources according to an embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of an apparatus for aligning core network resources according to an embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of another apparatus for aligning core network resources according to an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of another apparatus for aligning core network resources according to an embodiment of the present invention.
- the present invention provides an alignment management method and related method of an evolved base station (Evolved Node B, eNodeB) and core network resources.
- Evolved Node B evolved Node B
- the device transmits the X2 context release indication to the source base station eNodeB after receiving the path switch request response sent by the core network by the target base station eNodeB (that is, the user equipment performs the handover between the target base station and the source base station, and may also be referred to as the first a context release indication, and triggering the source base station eNodeB to send an S1 context release indication (ie, a second context release indication sent between the source base station and the core network) to the core network after the S1AP identity resource release is completed, so that the core network The redistribution of the S1AP identity resource is initiated.
- S1 context release indication ie, a second context release indication sent between the source base station and the core network
- the embodiment of the present invention provides a method for aligning an evolved base station with a core network resource.
- an executor of the method is an Evolved Node B (eNodeB) side.
- the method includes:
- the present invention sends a first context release indication to the source base station after receiving the path switch request response sent by the core network by the target base station (ie, the user equipment performs handover between the target base station and the source base station, and those skilled in the art) It may also be referred to as an X2 Context Release Indication to trigger the source base station to perform identity resource release, and after the source base station local identity resource release is completed, send a second context release indication to the core network, so that the core network initiates identification of the resource to the S1AP. Redistribution, thereby avoiding the problem of X2 handover or access failure caused by network delay.
- the method of the present invention is to trigger the reallocation of the identified resources by the core network after the release of the identity resource is completed by the source base station, thereby completely avoiding the problem that the evolved base station and the core network resources are not aligned, and can significantly improve when the number of users is large. Switching success rate and access success rate greatly enhance the user experience.
- the first context release indication that is, the X2 context release indication carries the pre-released S1AP identifier, so that the source base station can know which resource is released.
- the embodiment of the present invention further provides another method for aligning the evolved base station with the core network resource.
- the execution body of the method is the source base station eNodeB side, and the method includes :
- the source base station in the embodiment of the present invention releases its own identification resource, and after the release is completed, notifies the core network that the identification resource can be reallocated.
- the S1 context release indication sent by the source base station eNodeB to the core network (that is, the second context release indication sent between the source base station and the core network) carries the pre-released S1AP identifier. In order for the core network to know which core network user S1AP identifier can be re-allocated.
- the embodiment of the present invention further provides a method for aligning and managing an evolved base station and a core network resource.
- the execution body of the method is a core network side, and the method is include:
- the second context release indication sent by the source base station eNodeB may also be referred to as an S1 context release indication.
- the second context release indication in the embodiment of the present invention carries a pre-released S1AP identifier.
- the core network of the present invention initiates the reallocation of the S1AP identity resource after the completion of the release of the S1AP identity resource, thereby completely avoiding the problem that the evolved base station and the core network resource are not aligned.
- the S1 context release indication in the embodiment of the present invention carries the S1AP identifier, and the core network determines, according to the S1AP identifier, which core network user S1AP identifier is reassigned.
- the method further includes: directly releasing the identifier resource when the second context release indication is not received within a predetermined time after the path switch request response is sent.
- the “wait release indication timer” is started. If the predetermined time is reached, the S1 context release indication sent by the source base station eNodeB has not been received. Then, the network or the source base station eNodeB is faulty. In order to improve resource utilization, the core network directly releases the S1AP identifier resource.
- FIG. 4 is a schematic flowchart of a method for aligning an evolved base station with a core network resource according to an embodiment of the present invention.
- the method according to the present invention will be explained and illustrated in detail below with reference to FIG. 3.
- the present invention Methods include:
- Step 1 "Measurement report" on the terminal, the source base station eNodeB side determines to start the X2 handover;
- Step 2 The source base station eNodeB side initiates an "X2 handover request" to the target base station eNodeB side, and after the target base station eNodeB side prepares the resource successfully, sends an "X2 request response" to the handover source side;
- Step 3 The source base station eNodeB sends a “re-allocation” to the terminal, and the terminal sends “re-allocation completion” on the handover target side.
- Step 4 The target base station eNodeB sends a path switch request to the core network, where the core network user S1AP identifier allocated by the core network is carried when the source side is switched, and the core network user S1AP identifier is released after receiving the core network, which is the handover target focus. After the core network user S1AP identifier is newly allocated, the path is returned to the handover target side eNodeB. Switching request response;
- Step 5 The handover target side eNodeB sends an X2 context release indication to the handover source side eNodeB, and notifies the handover source side to release the corresponding user resource (including the source base station side local core network user S1AP identifier).
- Step 6 The switching source side sends an S1 context release indication to the core network to notify the core network that the source side resource release is completed, and the core network side can reuse the already released resources.
- the present invention adds the "S1UE Context Release Indication” in 36.413, and after receiving the "Path Switching Response" on the X2 handover target side eNodeB, the "X2UE Context Release” is sent to the handover source side, and the source side is switched. After the X2UE context is released, an "S1 Context Release Indication" is sent to the core network to indicate that the core network switch source side release is OK. After receiving the message, the core network can initiate the corresponding resource to be allocated again.
- the S1 context release indication of the present invention needs to carry S1AP identification information, where at least one cell is included: a core network user S1AP identifier (MME UE S1AP ID) or a base station user S1AP identifier (eNB UE S1AP ID, specifically, the core network may Searching for the corresponding MME UE S1AP ID by eNB UE S1AP ID matching to indicate that the core network MME UE S1AP ID has been released. Therefore, the S1AP identification information of the evolved base station side core network user is completely aligned with the core network side core network user S1AP identification information.
- the implementation proves that, when the amount of users is large, the method according to the present invention can significantly improve the handover success rate and the access success rate, thereby greatly improving the user experience.
- the embodiment of the present invention provides a management apparatus for aligning an evolved base station with a core network resource.
- the apparatus is specifically configured in a target base station eNodeB, and the apparatus specifically includes:
- a receiving unit configured to receive a path switch request response sent by the core network
- a sending unit configured to send a first context release indication to the source base station eNodeB.
- the target base station after receiving the path switch request response sent by the core network, the target base station sends an X2 context release indication to the source base station to trigger the source base station eNodeB to release the identity resource, and after the identity resource release is completed,
- the S1 context release indication is sent to the core network to enable the core network to initiate redistribution of the S1AP identity resource, thereby avoiding the problem of X2 handover failure caused by network delay.
- the source base station eNodeB triggers the core network to initiate the reallocation of the S1AP identity resource, thereby completely avoiding the problem that the evolved base station and the core network resource are not aligned.
- the switching success rate can be significantly improved, thereby greatly improving the user experience.
- the embodiment of the present invention provides another management apparatus for aligning the evolved base station eNodeB with the core network resources.
- the apparatus is specifically configured in the core network, and the apparatus specifically includes:
- a first receiving unit configured to receive a first context release indication sent by the target base station eNodeB
- a processing unit configured to release the identifier resource according to the first context release indication, and send a second context release indication to the core network after the release is completed.
- the source base station in the embodiment of the present invention releases its own identification resource, and after the release is completed, notifies the core network that the identification resource can be identified. Redistribution.
- the S1 context release indication sent by the source base station eNodeB to the core network carries the pre-released S1AP identifier, so that the core network knows which core network user S1AP identifier can be re-allocated.
- the embodiment of the present invention provides another management device for aligning the evolved base station eNodeB with the core network resource.
- the device is specifically configured in the core network, and the device specifically includes:
- a second receiving unit configured to receive a second context release indication sent by the source base station eNodeB, that is, an S1 context release indication
- an allocating unit configured to start reallocation of the identifier resource according to the second context release indication.
- the core network of the present invention starts the reallocation of the identity resource after the release of the identity resource eNodeB, thereby completely avoiding the problem that the evolved base station and the core network resource are not aligned.
- the S1 context release indication in the embodiment of the present invention carries the S1AP identifier information, and the core network determines, according to the S1AP identifier information, which core network user S1AP identifier is reassigned.
- the second receiving unit is further configured to trigger the allocating unit when the second context release indication is not received within a predetermined time
- the allocating unit is further configured to directly release the identifier resource when triggered by the second receiving unit.
- the “wait release indication timer” is started. If the predetermined time is reached, the S1 context release indication sent by the source base station eNodeB has not been received. Then, the network or the source base station eNodeB is faulty. In order to improve resource utilization, the core network directly releases the S1AP identifier resource.
- the target base station eNodeB After receiving the path switch request response sent by the core network, the target base station eNodeB triggers the source base station eNodeB to release the identity resource, and then re-allocates the S1AP identity resource of the core network after the source base station identity resource is released. Therefore, the problem that the user equipment's base station handover or access failure fails due to the misalignment of the user S1AP identifiers on the eNodeB side and the core network side is avoided, and the user experience is greatly improved.
- Each module or unit in the management device for the core network identification resource provided by the embodiment of the present invention may pass through one or more digital signal processors (DSPs), application specific integrated circuits (ASICs), processors, microprocessors, controllers. Implemented by a microcontroller, field programmable array (FPGA), programmable logic device, or other electronic unit, or any combination thereof. Some of the functions or processes described in this application embodiment may also be implemented by software executing on a processor.
- DSPs digital signal processors
- ASICs application specific integrated circuits
- FPGA field programmable array
- programmable logic device or other electronic unit, or any combination thereof.
- the present invention relates to the field of communication technologies, and can avoid the user S1AP standard on the eNodeB side and the core network side.
- the problem of misalignment leads to the problem of base station handover or access failure of the user equipment, and greatly improves the user experience.
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Abstract
本发明公开了一种对核心网标识资源的对齐管理方法及相关装置，本发明的目标基站eNodeB在接收到核心网发来的路径切换请求应答后，触发源基站eNodeB进行标识资源释放，并在源基站标识资源释放完成后，再启动核心网的S1AP标识资源再分配，从而避免了由于eNodeB侧与核心网侧的用户S1AP标识不对齐，而导致用户设备的基站切换失败的问题，并大大提高了用户体验。
Description
本发明涉及通信技术领域，特别是涉及一种对核心网标识资源的对齐管理方法及相关装置。
“核心网用户S1AP标识”(MME UE S1AP ID)是在核心网(Core network)内唯一识别一条用户设备(User equipment，UE)专用S1偶联链路，对于演进型基站(Evolved Node B，eNodeB)更是唯一识别一条用户设备专用偶联链路。对于该S1AP标识协议有明确的校验要求，在同一基站内若检测到S1AP标识冲突，那么需要释放相关用户设备，且需要向核心网发送错误指示。
现有技术中，当X2切换(即，用户设备进行目标基站与源基站进行切换)时，核心网收到“路径切换请求”后，其中，路径切换请求里面会携带源侧S1AP标识信息，核心网收到后，分配新的S1AP标识信息，发送“路径切换应答”，建立新的S1UE专用偶联链路，同时会释放切换源侧的核心网用户S1AP标识资源。
在多UE同时进行X2切换时，核心网发送“路径切换应答”，释放切换源侧的核心网用户S1AP标识资源，但是由于网络时延，“路径切换应答”未及时到达X2切换目标侧eNodeB，X2切换目标侧不能及时通知X2切换源侧进行UE上下文释放，导致此时切换源侧eNodeB认为该核心网用户S1AP标识还存在，而此时若切换源侧eNodeB有其他终端接入，核心网可能把刚释放的核心网用户S1AP标识分配给新UE，导致eNodeB侧校验核心网用户S1AP标识失败，同时导致本次终端接入失败和本次切换失败。且当用户较多时，出现上述失败的概率就愈大，对用户体验影响也愈大。
发明内容
本发明提供了一种演进型基站(Evolved Node B，eNodeB)与核心网的标识资源对齐的管理方法及相关装置，以解决由于网络时延等原因使得eNodeB侧与核心网侧的用户S1AP标识不对齐，导致用户设备的基站切换或接入失败的问题。
本发明一方面提供一种对核心网标识资源的管理方法，在源基站(Evolved Node B，eNodeB)侧，该方法包括
接收目标基站eNodeB发送来的第一上下文释放指示；
根据所述第一上下文释放指示对标识资源进行释放，并在释放完成后，向所述核心网发送第二上下文释放指示。
优选地，所述第二上下文释放指示中携带有预释放的S1AP标识。
本发明再一方面提供一种对核心网标识资源的管理方法，在核心网侧，该方法包括：
接收源基站eNodeB发来的第二上下文释放指示；
根据所述第二上下文释放指示启动标识资源的再分配。
优选地，所述第二上下文释放指示中携带有预释放的S1AP标识。
优选地，该方法还包括：当发送路径切换请求应答后，预定时间内没有收到所述第二上下文释放指示时，直接释放所述标识资源。
本发明又再一方面提供了一种对核心网标识资源的管理装置，该装置设置在源基站eNodeB侧，该装置包括：
第一接收单元，用于接收目标基站eNodeB发送来的第一上下文释放指示；
处理单元，用于根据所述第一上下文释放指示对标识资源进行释放，并在释放完成后，向所述核心网发送第二上下文释放指示。
优选地，所述第二上下文释放指示中携带有预释放的S1AP标识。
本发明又再一方面提供了另一种对核心网标识资源的管理装置，该装置设置在核心网侧，包括：
第二接收单元，用于接收源基站eNodeB发来的第二上下文释放指示；
分配单元，用于根据所述第二上下文释放指示启动标识资源的再分配。
优选地，所述第二上下文释放指示中携带有预释放的S1AP标识。
优选地，所述第二接收单元还用于，当发送路径切换请求应答后，预定时间内没有收到所述第二上下文释放指示时，触发所述分配单元；
所述分配单元还用于，在所述第二接收单元触发下，直接释放所述标识资源。
本发明有益效果如下：
本发明的源基站eNodeB在接收到目标基站发来的第一上下文释放指示后，进行本地标识资源释放，并在标识资源释放完成后，指示核心网启动核心网侧的S1AP标识资源再分配，从而避免了由于eNodeB侧与核心网侧的用户S1AP标识不对齐，而导致用户设备的基站切换或接入失败的问题，并大大提高了用户体验。
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是本发明实施例的一种对核心网资源的对齐管理方法的流程示意图；
图2是本发明实施例的另一种对核心网资源的对齐管理方法的流程示意图；
图3是本发明实施例的再一种对核心网资源的对齐管理方法的流程示意图；
图4是本发明实施例的又再一种对核心网资源的对齐管理方法的流程示意图；
图5是本发明实施例的一种对核心网资源的对齐管理装置的结构示意图；
图6是本发明实施例的另一种对核心网资源的对齐管理装置的结构示意图；
图7是本发明实施例的再一种对核心网资源的对齐管理装置的结构示意图。
为了解决现有技术中由于网络时延等原因而导致的用户设备的基站切换失败的问题，本发明提供了一种演进型基站(Evolved Node B，eNodeB)与核心网资源的对齐管理方法及相关装置，本发明通过目标基站eNodeB在接收到核心网发来的路径切换请求应答后，向源基站eNodeB发送X2上下文释放指示(即，用户设备进行目标基站与源基站进行切换，也可以称为第一上下文释放指示)，并触发源基站eNodeB在S1AP标识资源释放完成后，向核心网发送S1上下文释放指示(即，源基站与核心网之间发送的第二上下文释放指示)，以使核心网启动S1AP标识资源的再分配。以下结合附图以及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不限定本发明。
方法实施例
本发明实施例提供了一种演进型基站与核心网资源对齐的方法，参见图1，该方法的执行主体是目标基站(Evolved Node B，eNodeB)侧，该方法具体包括：
S101、接收核心网发来的路径切换请求应答；
S102、向源基站eNodeB发送第一上下文释放指示。
也就是说，本发明通过目标基站在接收到核心网发来的路径切换请求应答后，向源基站发送第一上下文释放指示(即用户设备进行目标基站与源基站进行切换，本领域的技术人员也可以称之为X2上下文释放指示)，以触发源基站进行标识资源释放，并在源基站本地标识资源释放完成后，向核心网发送第二上下文释放指示，以使核心网启动对S1AP标识资源的再分配，从而避免了由网络时延而导致的X2切换或接入失败的问题。
本发明是在源基站对标识资源释放完成后，再触发核心网启动对标识资源的再分配，从而完全避免了演进型基站与核心网资源不对齐的问题，在大用户量时，能显著提升切换成功率和接入成功率，从而大大提升用户体验。
需要说明的是，本发明实施例中，第一上下文释放指示，即X2上下文释放指示中携带有预释放的S1AP标识，以使源基站能够知晓释放哪个资源。
相对于图1所示的方法，本发明实施例还提供了另一种演进型基站与核心网资源对齐管理的方法，具体参见图2，该方法的执行主体是源基站eNodeB侧，该方法包括：
S201、接收目标基站eNodeB发送来的第一上下文释放指示；
S202、根据所述第一上下文释放指示对标识资源进行释放，并在释放完成后，向
所述核心网发送第二上下文释放指示。
即，本发明实施例的源基站在接收到目标基站发送来的第一上下文释放指示后，对其自身的标识资源进行释放，并在释放完成后，通知核心网可进行标识资源重新分配。
需要说明的是，本发明实施例中，源基站eNodeB向核心网发送的S1上下文释放指示(也就是源基站与核心网之间发送的第二上下文释放指示)中携带有预释放的S1AP标识，以使核心网知晓哪一个核心网用户S1AP标识可以重新进行分配。
相对于图1和图2所示的方法，本发明实施例还提供了一种演进型基站与核心网资源对齐管理的方法，具体参见图3，该方法的执行主体是核心网侧，该方法包括：
S301、接收源基站eNodeB发来的第二上下文释放指示，也可以称为S1上下文释放指示；
S302、根据所述第二上下文释放指示启动标识资源的再分配。
其中，本发明实施例所述的第二上下文释放指示中携带有预释放的S1AP标识。
也就是说，本发明的核心网在接收到源基站eNodeB在S1AP标识资源释放完成后，再启动对S1AP标识资源的再分配，从而完全避免了演进型基站与核心网资源不对齐的问题。
需要说明的是，本发明实施例所述S1上下文释放指示中携带S1AP标识，核心网根据该S1AP标识，确定重新分配哪一个核心网用户S1AP标识。
优选地，所述方法还包括：当发送路径切换请求应答后，预定时间内没有收到所述第二上下文释放指示时，直接释放所述标识资源。
具体来说，本发明实施例的核心网核心网侧发送“路径切换应答”后，启动“等待释放指示定时器”，若达到预定时间，还没有收到源基站eNodeB发来的S1上下文释放指示，则判定是网络或者源基站eNodeB故障，为了提高资源的利用率，此时，核心网直接释放S1AP标识资源。
图4是本发明实施例的再一种演进型基站与核心网资源对齐的方法的流程示意图，下面将结合图3对本发明所述的方法进行详细的解释和说明，具体地，本发明所述方法包括：
步骤1.终端上“测量报告”，源基站eNodeB侧判定开始发起X2切换；
步骤2.源基站eNodeB侧向目标基站eNodeB侧发起“X2切换请求”，目标基站eNodeB侧准备资源成功后，向切换源侧发送“X2请求应答”；
步骤3.源基站eNodeB侧向终端下发“重配”，终端在切换目标侧发送“重配完成”；
步骤4.目标基站eNodeB侧向核心网发送路径切换请求，其中携带切换源侧时核心网所分配的核心网用户S1AP标识，核心网收到后，释该核心网用户S1AP标识，为切换目标侧重新分配核心网用户S1AP标识后，并向切换目标侧eNodeB回复路径
切换请求应答；
步骤5.切换目标侧eNodeB向切换源侧eNodeB发送X2上下文释放指示，通知切换源侧释放对应的用户资源(包括源基站侧本地核心网用户S1AP标识)。
步骤6.切换源侧向核心网发送S1上下文释放指示，通知核心网，切换源侧资源释放完成，核心网方可再次利用已经释放得资源。
也就是说，本发明通过在36.413中新增“S1UE上下文释放指示”，当在X2切换目标侧eNodeB收到“路径切换应答”后，向切换源侧发送“X2UE上下文释放”，切换源侧收到X2UE上下文释放后，向核心网回复一条“S1上下文释放指示”，以指示核心网切换源侧资源释放OK，核心网收到该消息后即可启动对应资源得再次分配。并且，本发明的S1上下文释放指示需要携带S1AP标识信息，其中至少包含一个信元：核心网用户S1AP标识(MME UE S1AP ID)或者基站用户S1AP标识(eNB UE S1AP ID，具体的，核心网可以通过eNB UE S1AP ID匹配查找对应的MME UE S1AP ID)，以指示核心网该MME UE S1AP ID已经释放完成。从而实现演进型基站侧核心网用户S1AP标识信息与核心网侧核心网用户S1AP标识信息完全对齐。实现证明，在大用户量时，采用本发明所述的方法，能够显著的提升切换成功率和接入成功率，从而大大提升用户体验。
装置实施例
相对于图1所示的方法，本发明实施例提供了一种演进型基站与核心网资源对齐的管理装置，参见图5，该装置具体设置在目标基站eNodeB中，该装置具体包括：
接收单元，用于接收核心网发来的路径切换请求应答；
发送单元，用于向源基站eNodeB发送第一上下文释放指示。
也就是说，本发明通过目标基站在接收到核心网发来的路径切换请求应答后，向源基站发送X2上下文释放指示，以触发源基站eNodeB进行标识资源释放，并在标识资源释放完成后，向核心网发送S1上下文释放指示，以使核心网启动对S1AP标识资源的再分配，从而避免了由网络时延而导致的X2切换失败的问题。
即，本发明是在源基站eNodeB在S1AP标识资源释放完成后，再触发核心网启动对S1AP标识资源的再分配，从而完全避免了演进型基站与核心网资源不对齐的问题，在大用户量时，能显著提升切换成功率，从而大大提升用户体验。
相对于图2所示的方法，本发明实施例提供了另一种演进型基站eNodeB与核心网资源对齐的管理装置，参见图6，该装置具体设置在核心网中，该装置具体包括：
第一接收单元，用于接收目标基站eNodeB发送来的第一上下文释放指示；
处理单元，用于根据所述第一上下文释放指示对标识资源进行释放，并在释放完成后，向所述核心网发送第二上下文释放指示。
也就是说，本发明实施例的源基站在接收到目标基站发送来的第一上下文释放指示后，对其自身的标识资源进行释放，并在释放完成后，通知核心网可进行标识资源
重新分配。
需要说明的是，本发明实施例中，源基站eNodeB向核心网发送的S1上下文释放指示中携带有预释放的S1AP标识，以使核心网知晓哪一个核心网用户S1AP标识可以重新进行分配。
相对于图3所示的方法，本发明实施例提供了另一种演进型基站eNodeB与核心网资源对齐的管理装置，参见图7，该装置具体设置在核心网中，该装置具体包括：
第二接收单元，用于接收源基站eNodeB发来的第二上下文释放指示，即，S1上下文释放指示；
分配单元，用于根据所述第二上下文释放指示启动标识资源的再分配。
也就是说，本发明的核心网在接收到源基站eNodeB在标识资源释放完成后，再启动对标识资源的再分配，从而完全避免了演进型基站与核心网资源不对齐的问题。
需要说明的是，本发明实施例所述S1上下文释放指示中携带S1AP标识信息，核心网根据该S1AP标识信息，确定重新分配哪一个核心网用户S1AP标识。
本发明实施例还提供了以下的优选的实施例，具体地，
所述第二接收单元还用于，当预定时间内没有收到所述第二上下文释放指示时，触发所述分配单元；
所述分配单元还用于，在所述第二接收单元触发下，直接释放所述标识资源。
具体来说，本发明实施例的核心网核心网侧发送“路径切换应答”后，启动“等待释放指示定时器”，若达到预定时间，还没有收到源基站eNodeB发来的S1上下文释放指示，则判定是网络或者源基站eNodeB故障，为了提高资源的利用率，此时，核心网直接释放S1AP标识资源。
本发明实施例的相关内容可参考方法实施例的相关内容进行理解，此处不再赘述。
本发明至少可以达到以下的有益效果：
本发明的目标基站eNodeB在接收到核心网发来的路径切换请求应答后，触发源基站eNodeB进行标识资源释放，并在源基站标识资源释放完成后，再启动核心网的S1AP标识资源再分配，从而避免了由于eNodeB侧与核心网侧的用户S1AP标识不对齐，而导致用户设备的基站切换或接入失败的问题，并大大提高了用户体验。
本发明实施例提供的对核心网标识资源的管理装置中的各个模块或单元可以通过一个或多个数字信号处理器(DSP)、专用集成电路(ASIC)、处理器、微处理器、控制器、微控制器、现场可编程阵列(FPGA)、可编程逻辑器件或其他电子单元或其任意组合来实现。在本申请实施例中描述的一些功能或处理也可以通过在处理器上执行的软件来实现。
本发明涉及通信技术领域，可以避免由于eNodeB侧与核心网侧的用户S1AP标
识不对齐，而导致用户设备的基站切换或接入失败的问题，并大大提高了用户体验。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。
Claims (10)
- 一种对核心网标识资源的管理方法，应用在源基站eNodeB侧，该方法包括：接收目标基站eNodeB发送来的第一上下文释放指示；根据所述第一上下文释放指示对标识资源进行释放，并在释放完成后，向所述核心网发送第二上下文释放指示。
- 根据权利要求1所述的方法，其中，所述第二上下文释放指示中携带有预释放的S1AP标识。
- 一种对核心网标识资源的管理方法，应用在核心网侧，该方法包括：接收源基站eNodeB发来的第二上下文释放指示；根据所述第二上下文释放指示启动标识资源的再分配。
- 根据权利要求3所述的方法，其中，所述第二上下文释放指示中携带有预释放的S1AP标识。
- 根据权利要求3或4所述的方法，还包括：当发送路径切换请求应答后，预定时间内没有收到所述第二上下文释放指示时，直接释放所述标识资源。
- 一种对核心网标识资源的管理装置，设置在源基站eNodeB侧，该装置包括：第一接收单元，设置为接收目标基站eNodeB发送来的第一上下文释放指示；处理单元，设置为根据所述第一上下文释放指示对标识资源进行释放，并在释放完成后，向所述核心网发送第二上下文释放指示。
- 根据权利要求6所述的装置，其中，所述第二上下文释放指示中携带有预释放的S1AP标识。
- 一种对核心网标识资源的管理装置，设置在核心网侧，该装置包括：第二接收单元，设置为接收源基站eNodeB发来的第二上下文释放指示；分配单元，设置为根据所述第二上下文释放指示启动标识资源的再分配。
- 根据权利要求8所述的装置，其中，所述第二上下文释放指示中携带有预释放的S1AP标识。
- 根据权利要求8或9所述的装置，其中，所述第二接收单元还设置为，当发送路径切换请求应答后，预定时间内没有收到所述第二上下文释放指示时，触发所述分配单元；所述分配单元还设置为，在所述第二接收单元触发下，直接释放所述标识资源。
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| CN102905391A (zh) * | 2011-07-26 | 2013-01-30 | 中兴通讯股份有限公司 | 用户设备上下文的处理方法、装置及系统 |
| CN103338526A (zh) * | 2011-01-10 | 2013-10-02 | 华为技术有限公司 | 用户设备上下文相关资源的释放方法和设备 |
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| CN103748922A (zh) * | 2011-08-24 | 2014-04-23 | 瑞典爱立信有限公司 | 用于处理ue上下文的网关设备及其方法 |
| CN104540241A (zh) * | 2011-01-10 | 2015-04-22 | 华为技术有限公司 | 用户设备上下文相关资源的释放方法和设备 |
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| CN103748922A (zh) * | 2011-08-24 | 2014-04-23 | 瑞典爱立信有限公司 | 用于处理ue上下文的网关设备及其方法 |
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