WO2012159491A1 - 寻呼范围的分配方法和设备 - Google Patents

寻呼范围的分配方法和设备 Download PDF

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Publication number
WO2012159491A1
WO2012159491A1 PCT/CN2012/072966 CN2012072966W WO2012159491A1 WO 2012159491 A1 WO2012159491 A1 WO 2012159491A1 CN 2012072966 W CN2012072966 W CN 2012072966W WO 2012159491 A1 WO2012159491 A1 WO 2012159491A1
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WIPO (PCT)
Prior art keywords
core network
terminal device
network control
control entity
paging
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French (fr)
Inventor
王胡成
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/06User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by changing the notification area

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating paging ranges. Background technique
  • MM Mobility Management
  • APN based Mobility Management control Mobility Management Control based on access point name.
  • the network side performs APN based mobility management congestion on the UE (User Equipment, ie, the terminal device) that has subscribed to the special access point name (Access Point Name).
  • UE User Equipment
  • Access Point Name the special access point name
  • the network side determines whether the special APN is congested. If yes, the MM Request is rejected and may be carried in the returned refusal message.
  • the MM back-off timer (Mobility Management back-off timer) is sent to the UE. After receiving the MM back-off timer, the UE starts the local timer, and does not before the timer expires. Initiate any mobility management process.
  • the existing 3GPP (Third Generation Partnership Project) protocol proposes a Universal NAS (Non-Access-Stratiction) layer Mobility Management Congestion Control mechanism, which proposes a general network overload.
  • the network side can reject any MM Request message of the UE.
  • the MM back-off timer is carried in the returned refusal message.
  • the UE After receiving the MM back-off timer, the UE starts the local timer. Before the timer expires, the UE cannot initiate any non-EMC (Emergency).
  • MM Request message of non-high priority or MT (Mobile terminated, called) service is a Universal NAS (Non-Access-Stratiction) layer Mobility Management Congestion Control mechanism, which proposes a general network overload.
  • the network side can reject any MM Request message of the UE.
  • the MM back-off timer is carried in the returned refusal message.
  • the UE After receiving the MM back-off timer, the UE starts the local timer. Before the timer expires
  • the PGW Packet Data Network Gateway
  • SGW Serving Gateway
  • DDN Downlink Data Notification
  • MME Mobility Management Entity
  • the management entity performs Paging.
  • Bearer ID Bearer Identity
  • ARP Allocation and Retention Priority
  • the paging range allocated to the UE determined according to the TAI (Tracking Area Identity) list.
  • the network allocates a paging range to the terminal according to the operator policy, such as in the form of TAI list/RAI (Routing Area Identity).
  • the paging range is delivered in the Attach process, TAU/RAU (Traging Area)
  • the process of assigning etc. is carried out.
  • the network side allocates an appropriate paging range according to the current location of the terminal device in the above process.
  • the network side can configure the device attributes of the UE through OMA (Open Mobile Alliance) DM (Device Management), which is configured as low.
  • the access priority (low access priority) UE needs to carry the Low access priority indicator when the NAS request occurs.
  • the network side will perform access control according to the indication information. For example, in the case of network overload, the priority is refused to carry low. Access priority indicator NAS request, and congestion control.
  • the NAS request may include an SM (Session Management) request or an MM request.
  • SM Session Management
  • TAU timer For UEs configured as low access priority indicator, you can configure long TAU timer, PLMN (Public Land Mobile Network), search timer and back-off timer.
  • PLMN Public Land Mobile Network
  • the core network control entity determines that the core network control entity is overloaded or the service network is congested, the request sent by the terminal device needs to be rejected, and the terminal device is triggered to run the MM back-off timer.
  • the terminal device cannot initiate any non-EMC.
  • MM Request which is not a high-priority or MT service. Therefore, after the terminal device moves out of the TA (Tracking Area) list or RA (Routing Area) that is originally assigned to it, the TAU/RAU process cannot be initiated.
  • the update of the TA list or the RA may cause the core network control entity to not update the TAI list or RAI allocated to the terminal device in time even if the terminal device is still under the control range of the core network control entity.
  • the embodiment of the invention provides a method and a device for allocating a paging range, which solves the problem that the traditional paging range allocation scheme may cause the terminal device to be covered by the core network control entity and remove the allocated paging range. Unable to continue to be paged.
  • an embodiment of the present invention provides a method for allocating a paging range, including:
  • the core network control entity receives the request message sent by the terminal device
  • the core network control entity determines whether it is currently in a state in which the core network control entity is overloaded or the network is congested;
  • the core network control entity allocates a location area larger than the paging area currently allocated for the terminal device as the paging range to the terminal device.
  • the embodiment of the present invention further provides a core network control entity, including at least:
  • a receiving module configured to receive a request message sent by the terminal device
  • a judging module configured to determine whether the core network control entity is overloaded or the network is congested
  • a sending module configured to allocate, to the terminal device, a location area that is larger than a paging area currently allocated for the terminal device when the determining result of the determining module is YES.
  • an embodiment of the present invention further provides a method for allocating paging ranges, including at least the following steps:
  • the terminal device sends a request message to the core network control entity
  • the terminal device receives the indication of the core network control entity, which is larger than the paging area currently allocated for the terminal device.
  • the location area serves as its own paging range.
  • the embodiment of the present invention further provides a terminal device, where the method further includes: a sending module, configured to send a request message to a core network control entity;
  • a receiving module configured to receive an indication of the core network control entity when the core network control entity determines that the core network control entity is overloaded or the network is congested, and allocate a paging area that is currently allocated to the terminal device.
  • a larger location area serves as the paging range for the terminal device.
  • the location area larger than the paging area currently allocated for the terminal device is allocated to the terminal device as a paging.
  • the range is such that, in a state in which the core network control entity is overloaded or the network is congested, the terminal device can obtain the maximum range location area that the core network control entity can provide as its own paging area, and avoid the terminal device in the core.
  • the problem of being unable to continue being paged due to the allocated paging area is elicited, thereby improving the reliability of the service.
  • FIG. 1 is a schematic flowchart of a method for allocating paging ranges according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a paging range allocation method on a terminal device side according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for allocating paging ranges in a specific application scenario according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a core network control entity according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. detailed description
  • 3GPP proposes a congestion control method, which prevents a terminal device from initiating an MM Request message when the network is congested by issuing a MM back-off timer.
  • this method brings the following problem. Since the terminal device cannot initiate the MM signaling such as the location update request to the network side when the MM back-off timer is started, once the terminal device moves out of the previously allocated paging, range, Even if the terminal device is still within the coverage of the current core network control entity, the core network control entity may cause the service to be interrupted or unable to start because the terminal device is not paged.
  • the 3GPP also proposes that when the MM back-off timer is running, the terminal device can still initiate a called service (mobile terminated service). Therefore, once the terminal device has the called service, the core network control entity needs to page the terminal device, and in the prior art, the core network control entity only pages the terminal device within the paging range originally sent to the terminal device. Therefore, there is a possibility that the service is interrupted due to the lack of paging.
  • a called service mobile terminated service
  • the technical solution proposed by the embodiment of the present invention enables the core network control entity to send all the location areas that can be served by the core network control entity to the terminal device in the service congestion state, thereby enabling the terminal device to be controlled in the core network.
  • the coverage of the entity is within, it can always be guaranteed to be paged to ensure the normal implementation of the service.
  • FIG. 1 is a schematic flowchart of a method for allocating a paging range according to an embodiment of the present invention, where the method specifically includes the following steps:
  • Step S101 The core network control entity receives the request message sent by the terminal device.
  • the request message mentioned in this step specifically includes: the core network control entity receives a location update request message sent by the terminal device, where the location update request message is specifically that the terminal device detects that it is already allocated. Sent to the core network control entity when the paging range is outside; or,
  • the core network control entity receives other mobility management request messages sent by the terminal device.
  • the change of the type of the specific request message does not affect the protection scope of the present invention. Any message that can trigger the determination of whether the core network control entity is currently in a traffic congestion state may fall within the protection scope of the present invention.
  • the core network control entity allocates the paging range to the terminal device according to the preset policy.
  • This situation is a conventional paging range allocation scheme, which is controlled by the core network in the Attach process, the TAU/RAU procedure, or the GUTI/P-TMSI Reallocation procedure.
  • the specific allocation rule is to select a partial area as the paging range of the terminal device according to the preset allocation policy within the certain range (such as the coverage of the specific core network control entity).
  • the paging range allocated by the core network control entity to the terminal device before the service congestion state is different from the paging range allocated in the subsequent steps of the embodiment of the present invention, in this step,
  • the area corresponding to the paging range allocated by the core network control entity for the terminal device that is not in the service congestion state is less than or equal to all the location areas of the core network control entity.
  • Step S102 The core network control entity determines whether the core network control entity is overloaded or the network is congested.
  • step S103 is performed
  • Step S103 The core network control entity allocates a location area larger than the paging area currently allocated for the terminal device as a paging range to the terminal device.
  • the specific allocation scheme may include the following two types:
  • the core network control entity carries a response message to the terminal device that is larger than the paging area currently allocated for the terminal device.
  • Regional information may include the following two types:
  • Solution 2 The message corresponding to the process of separately updating the paging area initiated by the core network control entity to the terminal device carries information of a location area that is larger than the paging area currently allocated for the terminal device.
  • the foregoing location area that is larger than the paging area currently allocated by the terminal device may be specifically configured by the core network control entity. All location areas that can be served, of course, may also be other range of location areas within the coverage of the core network control entity, but need to meet a paging area greater than the current allocation for the terminal device, and less than or equal to the core network control The requirements of all location areas that the entity can serve, and the specific location area can be adjusted according to actual needs. Such changes do not affect the scope of protection of the present invention.
  • the ratio is currently the end.
  • the determining process of the paging area allocated by the end device is as follows: First, the core network control entity determines the paging area currently allocated by the terminal device, and then, in the currently allocated paging area and other statistics. Based on the information, the range of location areas assigned to the terminal device is selected according to a preset rule.
  • the selection manner of selecting the range of the location area allocated to the terminal device according to the preset rule may include one or more of the following:
  • the area around the paging area currently allocated by the mobile terminal is determined, and some or all of the location areas are selected in the area to be allocated to the mobile terminal as the paging area.
  • the threshold or number threshold is filtered, and some or all of the location areas are selected in the area to be assigned to the mobile terminal as a paging area.
  • the number of specifically selected location areas can be determined as needed, and variations in the number of specifically selected location areas do not affect the scope of protection of the present invention.
  • the difference between the allocation of the paging area performed in this step and the allocation scheme of the conventional paging area mentioned in step S101 is:
  • the paging range allocation in the conventional paging area allocation scheme is the allocation of the paging range according to the preset policy. If the corresponding re-allocation condition is not met, the core network control entity does not perform the corresponding allocation result. Changed, even during this process, the mobile terminal is already out of the paging range.
  • the embodiment of the present invention proposes a paging area allocation scheme as mentioned in step S103, that is, as long as the mobile terminal is in the coverage of the core network control entity, once the core network control entity determines that it is currently in a traffic congestion state,
  • the location area larger than the paging area currently allocated for the terminal device, or even the entire coverage area of all the location areas that can be served by itself, is allocated to the mobile terminal as an updated paging area, in such a manner as to move
  • the core network control entity will compare The location area of the paging area currently allocated for the terminal device, and even the entire coverage area of all the location areas that can be served by the terminal device are allocated to the mobile terminal as a paging area, and the mobile terminal can be maximized.
  • the range of movement, the paging range is not
  • the embodiment of the present invention further provides a processing procedure of the paging range allocation method on the terminal device side.
  • FIG. 2 is a schematic flowchart of a method for allocating a paging range according to an embodiment of the present invention on a terminal device side, where the method specifically includes the following steps:
  • Step S201 The terminal device sends a request message to the core network control entity.
  • the request message sent in this step specifically includes:
  • the terminal device sends a mobility management request message to the core network control entity.
  • the change of the type of the specific request message does not affect the protection scope of the present invention, as long as it is capable of triggering the determination of whether the core network control entity is currently in a traffic congestion state. Messages may fall within the scope of the invention.
  • the allocated paging range is specifically the paging range allocated according to the conventional scheme, that is, the MM back-off timer is not running in the terminal device, and the core network control entity determines that the core network control does not occur.
  • the core network control entity received by the terminal device allocates a paging range to the terminal device according to the preset policy.
  • the area corresponding to the paging range is less than or equal to all the location areas that the core network control entity can serve.
  • Step S202 If the core network control entity determines that the core network control entity is overloaded or the network is congested, the terminal device receives the indication of the core network control entity, and uses a location area larger than the paging area currently allocated for the terminal device. Its own paging range.
  • the specific processing procedure of this step includes the following two types: Solution 1: The terminal device receives the information returned by the core network control entity that carries a larger location area than the paging area currently allocated for the terminal device. The response message will have a larger location area than the paging area currently allocated for the terminal device as its own paging range.
  • the terminal device performs its own information according to the information of the location area of the paging area corresponding to the terminal device that is currently allocated for the terminal device, which is initiated by the core network control entity. Update of paging range.
  • the location area that is larger than the paging area currently allocated by the terminal device may be specifically All the location areas that the core network control entity can serve, of course, may also be other range of location areas within the coverage of the core network control entity, but need to meet a paging area larger than the current allocation for the terminal device, and less than Or equal to the requirements of all the location areas that the core network control entity can serve, and the specific location area can be adjusted according to actual needs, such changes do not affect The scope of protection of the present invention is addressed.
  • the location area larger than the paging area currently allocated for the terminal device is allocated to the terminal device as a paging.
  • the range is such that, in a state in which the core network control entity is overloaded or the network is congested, the terminal device can obtain the maximum range location area that the core network control entity can provide as its own paging area, and avoid the terminal device in the core.
  • the problem of being unable to continue being paged due to the allocated paging area is elicited, thereby improving the reliability of the service.
  • the description of the technical solution is directly made by using an example of all the location areas that the core network control entity can serve as a larger location area than the paging area currently allocated for the terminal device.
  • the definition is only an example and does not affect the scope of protection of the present invention.
  • the MME (specific example of the core network control entity) allocates a TAI list to the UE according to the existing paging range allocation scheme. As long as the UE moves in the TA list range, the TAU Request may not be sent. On this basis, The technical solution proposed in the embodiment of the present invention is as shown in FIG. 3, and specifically includes the following steps:
  • Step S301 When the UE moves in the TA list range, the UE initiates an MM Request for the TAU or the Service Request to the MME.
  • Step S302 The MME determines whether the request should be rejected and the MM back-off timer is delivered according to the status of the general overload and the APN based Mobility Management congestion control and the corresponding policy.
  • step S303 is performed
  • step S303 the MME is still in the EMM-REGISTERED, and all the TAI lists in the MME are allocated to the UE.
  • the TAI list can be piggybacked by a reject message or by a separate process, such as a GUTI Reallocation procedure.
  • Step S304 After receiving the MM back-off timer, the UE starts a back-off timer.
  • a similar processing scheme may be adopted for the GPRS system, and all the RAI lists under the SGSN are allocated to the UE, and the list may be carried by a reject message or by a separate process, such as P. - TMSI reallocation process assignment.
  • the location area larger than the paging area currently allocated for the terminal device is allocated to the terminal device as a paging.
  • the range is such that, in a state in which the core network control entity is overloaded or the network is congested, the terminal device can obtain the maximum range location area that the core network control entity can provide as its own paging area, and avoid the terminal device in the core.
  • the problem that the paging area cannot be continued to be paged due to the allocated paging area is raised, and the reliability of the service is improved.
  • an embodiment of the present invention further provides a core network control entity, and a schematic structural diagram thereof is shown in FIG. 4, which specifically includes:
  • the receiving module 41 is configured to receive a request message sent by the terminal device.
  • the determining module 42 is configured to determine whether the core network control entity is overloaded or the network is congested.
  • the sending module 43 is configured to allocate, as the paging range, a location area larger than a paging area currently allocated for the terminal device to the terminal device when the determination result of the determining module 42 is YES.
  • the receiving module 41 is specifically configured to:
  • the location update request message is sent to the core network control entity when the terminal device detects that it is already outside the allocated paging range, or receives other mobility sent by the terminal device.
  • Management request message wherein, the allocated paging range is specifically that the terminal device is not running MM back-off If the core network control entity determines that the core network control entity is not overloaded or the service network is congested, the core network control entity allocates a paging range to the terminal device according to the preset policy, and the area corresponding to the paging range is less than or equal to The core network controls all location areas that the entity can serve.
  • the sending module 43 is specifically used to:
  • a separate update paging area procedure initiated to the terminal device and carrying information in a corresponding message that is larger than the paging area currently allocated for the terminal device.
  • an embodiment of the present invention further provides a terminal device, and a schematic structural diagram thereof is shown in FIG. 5, including:
  • a sending module 51 configured to send a request message to a core network control entity
  • the receiving module 52 is configured to receive an indication of the core network control entity when the core network control entity determines that the core network control entity is overloaded or the network is congested, and the location is larger than the paging area currently allocated for the terminal device.
  • the area serves as the paging range for the terminal device.
  • the sending module 51 is specifically configured to: send a location update request message to the core network control entity, where the location update request message is specifically that the terminal device detects that it is already in the allocated paging.
  • the allocated paging range is specifically that the terminal device does not run the MM back-off timer, and the core network controls If the entity determines that the core network control entity is not overloaded or the service network is congested, the core network control entity received by the terminal device allocates a paging range to the terminal device according to the preset policy, and the area corresponding to the paging range is less than or equal to the core.
  • the network controls all location areas that the entity can serve.
  • the receiving module 52 is specifically configured to:
  • the location area larger than the paging area currently allocated for the terminal device is allocated to the terminal device as a paging.
  • the range is such that, in a state in which the core network control entity is overloaded or the network is congested, the terminal device can obtain the maximum range location area that the core network control entity can provide as its own paging area, and avoid the terminal device in the core.
  • the problem of being unable to continue being paged due to the allocated paging area is elicited, thereby improving the reliability of the service.
  • the embodiments of the present invention can be implemented by hardware or by means of software plus a necessary general hardware platform.
  • the technical solution of the embodiment of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.).
  • a number of instructions are included to cause a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform the methods described in various implementation scenarios of embodiments of the present invention.
  • modules in the apparatus in the implementation scenario may be distributed in the apparatus for implementing the scenario according to the implementation scenario description, or may be correspondingly changed in one or more devices different from the implementation scenario.
  • the modules of the above implementation scenarios may be combined into one module, or may be further split into multiple sub-modules.

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Abstract

本发明实施例公开了一种寻呼范围的分配方法和设备,通过应用本发明实施例的技术方案,使核心网控制实体确定需要拒绝终端设备的请求消息时,将比当前为该终端设备分配的寻呼区域更大的位置区域分配给该终端设备作为寻呼范围,从而,在处于核心网控制实体过载或网络拥塞的状态下,使终端设备可以获得核心网控制实体所能提供的最大范围的位置区域作为自身的寻呼区域,避免该终端设备在该核心网控制实体的覆盖范围内,因为引出了所分配的寻呼区域而导致自身无法继续被寻呼的问题,提高了业务的可靠性。

Description

寻呼范围的分配方法和设备 本申请要求于 2011 年 5 月 24 日提交中国专利局, 申请号为 201110135127.0, 发明名称为 "寻呼范围的分配方法和设备" 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
本发明涉及通信技术领域,特别涉及一种寻呼范围的分配方法和 设备。 背景技术
对现有的移动性管理(Mobility Management, MM )方案中的一 些关于拥塞管理的情况进行说明如下:
一、 APN based Mobility Management control (基于接入点名称的 移动性管理控制)。
网络侧对签约了特殊 APN ( Access Point Name, 接入点名称 )的 UE( User Equipment,用户设备,即终端设备)进行 APN based mobility management congestion (基于接入点名称的移动性拥塞管理)。
当 匕类 UE发起 MM Request ( Mobility Management Request, 移 动性管理请求)到网络侧时, 网络侧会判断特殊 APN是否发生拥塞, 如果是,则拒绝此 MM Request,并可能在返回的拒绝消息中携带 MM back-off timer ( Mobility Management back-off timer , 移动 '1~生管理退避 定时器)给 UE , UE在收到 MM back-off timer之后, 启动本地的定 时器, 在此定时器超时之前不再发起任何 mobility management过程。
二、 通用的 Congestion Control (拥塞控制)。
现有的 3GPP ( Third Generation Partnership Project, 第三代移动 通信伙伴计划 )协议提出了通用的 NAS ( Non- Access-Stratum, 非接 入层 )层的 Mobility Management Congestion Control机制, 提出在通 用的网络过载条件下,网络侧可以拒绝 UE的任何 MM Request消息, 并在返回的拒绝消息中携带 MM back-off timer, UE 在收到 MM back-off timer之后, 启动本地的定时器, 在该定时器超时之前, UE 不能发起任何非 EMC( Emergency,紧急)、非高优先级或 MT( Mobile terminated, 被叫)业务的 MM Request消息。
三、 Paging (寻呼 ) 。
PGW ( Packet Data Network Gateway, 分组数据网络网关)将下 行数据直接发送到 SGW ( Serving Gateway, 服务网关), 由 SGW触 发 DDN ( Downlink Data Notification, 下行数据通知)消息通知 MME ( Mobility Management Entity,移动性管理实体)进行 Paging,在 DDN 消息中,携带收到数据的 Bearer (承载 )的 Bearer ID ( Bearer Identity , 7 载标只), 以及 ARP ( Allocation and Retention Priority, 分配和保持 优先级)信息。
网络侧寻呼 UE时, 仅在分配给 UE的寻呼范围中寻呼, 如果寻 呼多次都寻呼不到, 则向 SGW返回寻呼失败。 例如: 根据 TAI ( Tracking Area Identity, 跟踪区标识) list (列表)确定的分配给 UE的寻呼范围。
四、 寻呼范围的分配。
网络根据 operator policy (运营商策略)来给终端分配寻呼范围, 如通过 TAI list/RAI ( Routing Area Identity , 路由区标识 ) 的形式。
寻呼范围的下发是在 Attach(附着)过程, TAU/RAU( Traking Area
Update/ Routing Area Update, 跟踪区更新 /路由区更新 )过程, 或者 GUTI ( Globally Unique Temporary Identity , 全球唯一临时标识) /P-TMSI ( Packet - Temporary Mobile Subscriber Identify, 分组临时移 动用户标识 ) Reallocation (重分配 )过程等进行。 网络侧会在上述过 程中根据终端设备当前的位置分配合适的寻呼范围。
五、 Low access priority indicator ( 氐优先级接入指示 )。
考虑到 R10中可能不使用 OTA ( Over The Air, 空中下载 ) , 网 络侧可以通过 OMA ( Open Mobile Alliance, 开放移动联盟) DM ( Device Management,设备管理)配置 UE的设备属性,被配置为 low access priority (低接入优先级)的 UE在发生 NAS请求时, 需要携带 Low access priority indicator, 网络侧会才艮据此指示信息进行接入控 制, 例如在网络过载情况下, 优先选择拒绝携带 low access priority indicator的 NAS请求, 以及进行拥塞控制。
其中, NAS请求可以包括 SM ( Session Management, 会话管理 ) request或 MM request。
针对配置为 low access priority indicator的 UE,可以配置长的 TAU timer, PLMN ( Public Land Mobile Network, 公共陆上移动网络) search (搜索) timer以及 back-off timer„
在实现本发明实施例的过程中,申请人发现现有技术至少存在以 下问题:
当核心网控制实体确定发生核心网控制实体过载或业务网络拥 塞时, 需要拒绝该终端设备发送的请求, 并触发终端设备运行 MM back-off timer, 但是, 终端设备也会因此不能发起任何非 EMC、 非高 优先级或 MT业务的 MM Request, 因此, 当终端设备移出原来分配 给它的 TA ( Tracking Area, 跟踪区) list或 RA ( Routing Area, 路由 区)之后,不能发起 TAU/RAU过程进行 TA list或 RA的更新,从而, 会造成即使该终端设备仍旧处于该核心网控制实体的控制范围,该核 心网控制实体也不能及时更新分配给终端设备的 TAI list或 RAI。 如 果此时有 MT业务, 特别是有 Priority Service (优先业务)到达, 网 络侧会在原来分配的 TAI list或 RAI发起寻呼, 而此时寻呼将失败, 造成被叫业务中断。 发明内容
本发明实施例提供一种寻呼范围的分配方法和设备,解决传统的 寻呼范围分配方案中会导致终端设备即使处于核心网控制实体的覆 盖范围, 以及由于移出了所分配的寻呼范围而无法继续被寻呼的问 题。 为达到上述目的,本发明实施例一方面提供了一种寻呼范围的分 配方法, 包括:
核心网控制实体接收终端设备发送的请求消息;
所述核心网控制实体判断当前是否处于核心网控制实体过载或 网络拥塞的状态;
如果判断结果为是,所述核心网控制实体将比当前为所述终端设 备分配的寻呼区域更大的位置区域作为寻呼范围分配给所述终端设 备。
另一方面, 本发明实施例还提供了一种核心网控制实体, 至少包 括:
接收模块, 用于接收终端设备发送的请求消息;
判断模块,用于判断当前是否处于核心网控制实体过载或网络拥 塞的状态;
发送模块, 用于在所述判断模块的判断结果为是时, 将比当前为 所述终端设备分配的寻呼区域更大的位置区域作为寻呼范围分配给 所述终端设备。
另一方面, 本发明实施例还提供了一种寻呼范围的分配方法, 至 少包括以下步骤:
终端设备向核心网控制实体发送请求消息;
如果所述核心网控制实体判断当前处于核心网控制实体过载或 网络拥塞的状态, 所述终端设备接收所述核心网控制实体的指示, 将 比当前为所述终端设备分配的寻呼区域更大的位置区域作为自身的 寻呼范围。
另一方面, 本发明实施例还提供了一种终端设备, 至少包括: 发送模块, 用于向核心网控制实体发送请求消息;
接收模块,用于在所述核心网控制实体判断当前处于核心网控制 实体过载或网络拥塞的状态时,接收所述核心网控制实体的指示, 将 比当前为所述终端设备分配的寻呼区域更大的位置区域作为所述终 端设备的寻呼范围。 与现有技术相比, 本发明实施例所提出的技术方案具有以下优 点:
通过应用本发明实施例的技术方案,使核心网控制实体确定需要 拒绝终端设备的请求消息时,将比当前为该终端设备分配的寻呼区域 更大的位置区域分配给该终端设备作为寻呼范围, 从而, 在处于核心 网控制实体过载或网络拥塞的状态下,使终端设备可以获得核心网控 制实体所能提供的最大范围的位置区域作为自身的寻呼区域,避免该 终端设备在该核心网控制实体的覆盖范围内, 因为引出了所分配的寻 呼区域而导致自身无法继续被寻呼的问题, 提高了业务的可靠性。 附图说明
图 1 为本发明实施例提出的一种寻呼范围的分配方法的流程示 意图;
图 2 为本发明实施例提出的一种寻呼范围的分配方法在终端设 备侧的流程示意图;
图 3 为本发明实施例提出的一种具体应用场景下的寻呼范围的 分配方法的流程示意图;
图 4为本发明实施例提出的一种核心网控制实体的结构示意图; 图 5为本发明实施例提出的一种终端设备的结构示意图。 具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细 描述:
如背景技术所述, 3GPP提出了一种拥塞控制方法, 通过下发 MM back-off timer的方式来阻止终端设备在网络拥塞的情况下发起 MM Request消息。 然而, 此方法会带来如下问题, 由于终端设备无 法在启动了 MM back-off timer的情况下, 向网络侧发起位置更新请 求等 MM信令, 因此, 一旦终端设备移出了之前分配的寻呼范围, 即使终端设备仍旧处于当前的核心网控制实体的覆盖范围内,核心网 控制实体也会因为寻呼不到该终端设备, 而导致业务中断或无法开 始。
而 3GPP又提出在 MM back-off timer运行时,终端设备仍然可以 发起被叫业务(mobile terminated service )。 因此, 一旦终端设备有被 叫业务, 核心网控制实体需要寻呼终端设备, 而在现有技术中, 核心 网控制实体只是在原来下发给终端设备的寻呼范围内寻呼该终端设 备, 从而, 有可能由于寻呼不到, 而导致业务中断。
为了克服这样的缺陷,本发明实施例所提出的技术方案使核心网 控制实体将自身所能服务的所有位置区域下发给处于业务拥塞状态 的终端设备,从而,使该终端设备在核心网控制实体的覆盖范围内时, 始终可以保证可以被寻呼, 保证业务的正常实现。
如图 1所示,为本发明实施例提出的一种寻呼范围的分配方法的 流程示意图, 该方法具体包括以下步骤:
步骤 S101、 核心网控制实体接收终端设备发送的请求消息。 在具体的实施场景中, 本步骤中所提及的请求消息, 具体包括: 核心网控制实体接收终端设备发送的位置更新请求消息,位置更 新请求消息具体为终端设备在检测到自身已处于所分配的寻呼范围 之外时向核心网控制实体发送的; 或,
核心网控制实体接收终端设备发送的其他移动性管理请求消息。 具体的请求消息的类型变化并不会影响本发明的保护范围,只要 是能够触发核心网控制实体对当前是否处于业务拥塞状态的判定的 消息都可以属于本发明的保护范围。
需要进一步指出的是, 上述的寻呼范围具体指的是:
在终端设备未运行 MM back-off timer,且核心网控制实体确定未 发生核心网控制实体过载或业务网络拥塞的情况下,核心网控制实体 根据预设策略为终端设备分配的寻呼范围。
此种情况即为常规的寻呼范围分配方案, 由核心网控制实体在 Attach过程, TAU/RAU过程, 或者 GUTI/P-TMSI Reallocation过程 等过程中实现, 具体的分配规则是在该一定的范围(如具体的核心网 控制实体的覆盖范围) 内, 根据预设的分配策略, 选择部分区域作为 该终端设备的寻呼范围。
即处于业务拥塞状态之前核心网控制实体为该终端设备分配的 寻呼范围,与本发明实施例后续步骤中所分配的寻呼范围的区别在于 所覆盖的位置区域的大小, 在本步骤中, 核心网控制实体为未处于业 务拥塞状态的终端设备所分配的寻呼范围所对应的区域小于或等于 该核心网控制实体所能月良务的所有位置区域。
步骤 S102、 核心网控制实体判断当前是否处于核心网控制实体 过载或网络拥塞的状态。
如果判断结果为是, 则执行步骤 S103;
如果判断结果为否, 则正常响应相应的请求消息。
步骤 S103、 核心网控制实体将将比当前为该终端设备分配的寻 呼区域更大的位置区域作为寻呼范围分配给终端设备。
在实际的应用场景中, 具体的分配方案可以包括以下两种: 方案一、核心网控制实体在返回给终端设备的响应消息中携带将 比当前为该终端设备分配的寻呼区域更大的位置区域的信息。
方案二、核心网控制实体通过向终端设备发起的单独的更新寻呼 区域过程所对应的消息携带将比当前为该终端设备分配的寻呼区域 更大的位置区域的信息。
在实际的应用场景中, 本发明实施例所给出的一种具体的方案 下, 上述的比当前为该终端设备分配的寻呼区域更大的位置区域, 具 体可以为该核心网控制实体所能服务的所有位置区域, 当然, 也可以 为该核心网控制实体覆盖范围内的其他范围的位置区域,但需要满足 大于当前为该终端设备分配的寻呼区域,并且小于或等于该核心网控 制实体所能服务的所有位置区域的要求,具体的位置区域的划分范围 可以根据实际需要进行调整, 这样的变化并不影响本发明的保护范 围。
需要说明的是, 在具体的应用场景中, 对于上述的比当前为该终 端设备分配的寻呼区域更大的位置区域的确定过程具体如下: 首先, 核心网控制实体确定该终端设备当前所分配的寻呼区域, 然后, 在当前所分配的寻呼区域以及其他的统计信息的基础上, 根据 预设的规则选择分配给该终端设备的位置区域范围。
其中,上述的根据预设的规则选择分配给该终端设备的位置区域 范围的选择方式可以包括以下的一种或多种:
( 1 )在核心网控制实体的覆盖范围内, 结合对该终端设备的移 动轨迹的预测该终端设备可能会移动到的区域,并在该区域中选择部 分或全部的位置区域分配给该移动终端作为寻呼区域。
( 2 )在核心网控制实体的覆盖范围内, 确定该移动终端当前所 分配的寻呼区域周围的区域,并在该区域中选择部分或全部的位置区 域分配给该移动终端作为寻呼区域。
( 3 )在核心网控制实体的覆盖范围内, 结合其他终端设备的分 布信息,确定该移动终端当前所分配的寻呼区域周围所存在的终端设 备分布密度较高的区域(可以通过相应的密度门限值或数量门限值进 行筛选), 并在该区域中选择部分或全部的位置区域分配给该移动终 端作为寻呼区域。
在上述的各种方案中,具体选择的位置区域的数量可以根据需要 进行确定,具体选择的位置区域数量的变化并不会影响本发明的保护 范围。
需要进一步指出的是, 根据实际需要, 上述的选择规则可以组合 使用, 也可以单独使用其中的任何一种, 相应的组合方式的变化并不 会影响本发明的保护范围。
在本发明实施例的后续说明中,相应的选择规则同样存在类似的 说明, 不再重复描述。
具体的, 在实际应用中, 具体应用上述的哪种方案可以根据实际 的需要进行调整, 这样的变化并不会影响本发明的保护范围。
在本步骤中所进行的寻呼区域的分配与步骤 S101中所提及的常 规的寻呼区域的分配方案的差异在于: 常规的寻呼区域的分配方案中的寻呼范围分配是按照预设的策 略进行的寻呼范围的分配, 如果没有达到相应的重分配条件, 核心网 控制实体对于相应的分配结果是不会进行变更的, 即使在此过程中, 移动终端已经处于寻呼范围之外。
因此, 本发明实施例提出了如步骤 S103所提及的寻呼区域的分 配方案, 即只要移动终端处于核心网控制实体的覆盖范围, 那么, 一 旦核心网控制实体确定当前处于业务拥塞状态,就会将比当前为该终 端设备分配的寻呼区域更大的位置区域,甚至是自身所能服务的所有 位置区域的全部覆盖区域作为更新的寻呼区域分配给该移动终端,这 样的方式使移动终端在网络侧设备核心网控制实体的覆盖范围内移 动时, 无需因为移出寻呼范围 (常规分配方案所分配的寻呼范围)而 触发相应的更新寻呼区域过程,而核心网控制实体将比当前为该终端 设备分配的寻呼区域更大的位置区域,甚至是自身所能服务的所有位 置区域的全部覆盖范围都分配给移动终端作为寻呼区域,也可以保证 最大限度的扩展移动终端的移动范围, 不会频繁进行寻呼范围的更 新, 降低相应的信令交互对网络资源的占用。
与之相应的,本发明实施例进一步给出了一种寻呼范围的分配方 法在终端设备侧的处理过程。
如图 2所示,为本发明实施例提出的一种寻呼范围的分配方法在 终端设备侧的流程示意图, 该方法具体包括以下步骤:
步骤 S201、 终端设备向核心网控制实体发送请求消息。
与步骤 S101中的说明相类似, 本步骤中所发送的请求消息, 具 体包括:
终端设备向核心网控制实体发送的位置更新请求消息,位置更新 请求消息具体为终端设备在检测到自身已处于所分配的寻呼范围之 外时向核心网控制实体发送的; 或,
终端设备向核心网控制实体发送移动性管理请求消息。
具体的请求消息的类型变化并不会影响本发明的保护范围,只要 是能够触发核心网控制实体对当前是否处于业务拥塞状态的判定的 消息都可以属于本发明的保护范围。
需要进一步指出的是, 上述的所分配的寻呼范围, 具体为按照常 规方案所分配的寻呼范围, 即在终端设备未运行 MM back-off timer, 且核心网控制实体确定未发生核心网控制实体过载或业务网络拥塞 的情况下,终端设备接收到的核心网控制实体根据预设策略为终端设 备分配的寻呼范围。
其中,寻呼范围所对应的区域小于或等于核心网控制实体所能服 务的所有位置区域。
步骤 S202、 如果核心网控制实体判断当前处于核心网控制实体 过载或网络拥塞的状态, 终端设备接收核心网控制实体的指示, 将比 当前为该终端设备分配的寻呼区域更大的位置区域作为自身的寻呼 范围。
在实际的应用场景中, 本步骤的具体处理过程包括以下两种: 方案一、终端设备接收到核心网控制实体返回的携带比当前为该 终端设备分配的寻呼区域更大的位置区域的信息的响应消息,将比当 前为该终端设备分配的寻呼区域更大的位置区域作为自身的寻呼范 围。
方案二、终端设备根据核心网控制实体所发起的单独的更新寻呼 区域过程所对应的消息中所携带的比当前为该终端设备分配的寻呼 区域更大的位置区域的信息, 进行自身的寻呼范围的更新。
具体的, 在实际应用中, 具体应用上述的哪种方案可以根据实际 的需要进行调整, 这样的变化并不会影响本发明的保护范围。
与步骤 S103相类似, 在实际的应用场景中, 本发明实施例所给 出的一种具体的方案下,上述的比当前为该终端设备分配的寻呼区域 更大的位置区域,具体可以为该核心网控制实体所能服务的所有位置 区域, 当然, 也可以为该核心网控制实体覆盖范围内的其他范围的位 置区域, 但需要满足大于当前为该终端设备分配的寻呼区域, 并且小 于或等于该核心网控制实体所能服务的所有位置区域的要求,具体的 位置区域的划分范围可以根据实际需要进行调整,这样的变化并不影 响本发明的保护范围。
与现有技术相比, 本发明实施例所提出的技术方案具有以下优 点:
通过应用本发明实施例的技术方案,使核心网控制实体确定需要 拒绝终端设备的请求消息时,将比当前为该终端设备分配的寻呼区域 更大的位置区域分配给该终端设备作为寻呼范围, 从而, 在处于核心 网控制实体过载或网络拥塞的状态下,使终端设备可以获得核心网控 制实体所能提供的最大范围的位置区域作为自身的寻呼区域,避免该 终端设备在该核心网控制实体的覆盖范围内, 因为引出了所分配的寻 呼区域而导致自身无法继续被寻呼的问题, 提高了业务的可靠性。
下面, 结合具体的应用场景, 对本发明实施例所提出的技术方案 进行说明。
在本实施例中, 为了描述方便, 直接以核心网控制实体所能服务 的所有位置区域作为比当前为该终端设备分配的寻呼区域更大的位 置区域的示例进行技术方案的描述, 这样的限定仅是一种示例, 并不 会影响本发明的保护范围。
针对 LTE系统, MME (核心网控制实体的具体示例 )会按照现 有的寻呼范围分配方案给 UE分配 TAI list,只要 UE在 TA list范围移 动, 可以不发 TAU Request, 在此基础上, 本发明实施例所提出的技 术方案如图 3所示, 具体包括以下步骤:
步骤 S301、 UE在 TA list范围移动时, UE向 MME发起 TAU或 Service Request的 MM Request。
步骤 S302、 MME根据 general overload和 APN based Mobility Management congestion control的状况和对应策略,判断此时是否应该 拒绝该请求并下发 MM back-off timer。
如果是, 则执行步骤 S303;
如果不是, 则进行正常的响应处理。
步骤 S303、 MME仍然处于 EMM-REGISTERED,同时将本 MME 辖下所有的 TAI list分配给 UE。 该 TAI list可以通过拒绝消息捎带, 也可以通过发起单独过程, 如 GUTI Reallocation过程分配。
步骤 S304、 UE收到 MM back-off timer之后,启动 back-off timer。 基于上述的技术方案的技术思路, 针对 GPRS系统, 也可以采用 类似的处理方案, 为 UE分配一个 SGSN下辖的所有 RAI list, 该 list 可以通过拒绝消息携带, 也可以通过发起单独过程, 如 P-TMSI reallocation过程分配。
与现有技术相比, 本发明实施例所提出的技术方案具有以下优 点:
通过应用本发明实施例的技术方案,使核心网控制实体确定需要 拒绝终端设备的请求消息时,将比当前为该终端设备分配的寻呼区域 更大的位置区域分配给该终端设备作为寻呼范围, 从而, 在处于核心 网控制实体过载或网络拥塞的状态下,使终端设备可以获得核心网控 制实体所能提供的最大范围的位置区域作为自身的寻呼区域,避免该 终端设备在该核心网控制实体的覆盖范围内,因为引出了所分配的寻 呼区域而导致自身无法继续被寻呼的问题, 提高了业务的可靠性。
为了实现本发明实施例的技术方案,本发明实施例还提供了一种 核心网控制实体, 其结构示意图如图 4所示, 具体包括:
接收模块 41 , 用于接收终端设备发送的请求消息;
判断模块 42, 用于判断当前是否处于核心网控制实体过载或网 络拥塞的状态;
发送模块 43, 用于在判断模块 42的判断结果为是时, 将比当前 为该终端设备分配的寻呼区域更大的位置区域作为寻呼范围分配给 终端设备。
在具体的实施场景中, 接收模块 41 , 具体用于:
接收终端设备发送的位置更新请求消息,位置更新请求消息具体 为终端设备在检测到自身已处于所分配的寻呼范围之外时向核心网 控制实体发送的, 或接收终端设备发送的其他移动性管理请求消息; 其中,所分配的寻呼范围,具体为在终端设备未运行 MM back-off timer,且核心网控制实体确定未发生核心网控制实体过载或业务网络 拥塞的情况下,核心网控制实体根据预设策略为终端设备分配的寻呼 范围,寻呼范围所对应的区域小于或等于核心网控制实体所能服务的 所有位置区域。
另一方面, 发送模块 43 , 具体用于:
向终端设备发送携带比当前为该终端设备分配的寻呼区域更大 的位置区域的信息的响应消息; 或,
向终端设备发起的单独的更新寻呼区域过程,并在相应的消息中 携带比当前为该终端设备分配的寻呼区域更大的位置区域的信息。
另一方面, 本发明实施例还提供了一种终端设备, 其结构示意图 如图 5所示, 包括:
发送模块 51 , 用于向核心网控制实体发送请求消息;
接收模块 52, 用于在核心网控制实体判断当前处于核心网控制 实体过载或网络拥塞的状态时,接收核心网控制实体的指示, 将比当 前为该终端设备分配的寻呼区域更大的位置区域作为该终端设备的 寻呼范围。
在具体的实施场景中, 其特征在于, 发送模块 51 , 具体用于: 向核心网控制实体发送的位置更新请求消息,位置更新请求消息 具体为终端设备在检测到自身已处于所分配的寻呼范围之外时向核 心网控制实体发送的, 或向核心网控制实体发送移动性管理请求消 其中,所分配的寻呼范围,具体为在终端设备未运行 MM back-off timer,且核心网控制实体确定未发生核心网控制实体过载或业务网络 拥塞的情况下,终端设备接收到的核心网控制实体根据预设策略为终 端设备分配的寻呼范围,寻呼范围所对应的区域小于或等于核心网控 制实体所能服务的所有位置区域。
另一方面, 接收模块 52, 具体用于:
接收核心网控制实体返回的携带比当前为该终端设备分配的寻 呼区域更大的位置区域的信息的响应消息,将比当前为该终端设备分 配的寻呼区域更大的位置区域作为自身的寻呼范围; 或,
根据接收到的核心网控制实体所发起的单独的更新寻呼区域过 程所对应的消息中所携带的比当前为该终端设备分配的寻呼区域更 大的位置区域的信息, 进行自身的寻呼范围的更新。
与现有技术相比, 本发明实施例所提出的技术方案具有以下优 点:
通过应用本发明实施例的技术方案,使核心网控制实体确定需要 拒绝终端设备的请求消息时,将比当前为该终端设备分配的寻呼区域 更大的位置区域分配给该终端设备作为寻呼范围, 从而, 在处于核心 网控制实体过载或网络拥塞的状态下,使终端设备可以获得核心网控 制实体所能提供的最大范围的位置区域作为自身的寻呼区域,避免该 终端设备在该核心网控制实体的覆盖范围内, 因为引出了所分配的寻 呼区域而导致自身无法继续被寻呼的问题, 提高了业务的可靠性。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明实施例可以通过硬件实现,也可以借助软件加必要的通用硬 件平台的方式来实现。基于这样的理解, 本发明实施例的技术方案可 以以软件产品的形式体现出来,该软件产品可以存储在一个非易失性 存储介质 (可以是 CD-ROM, U盘, 移动硬盘等) 中, 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, 或网络侧 设备等)执行本发明实施例各个实施场景所述的方法。
本领域技术人员可以理解附图只是一个优选实施场景的示意图, 附图中的模块或流程并不一定是实施本发明实施例所必须的。
本领域技术人员可以理解实施场景中的装置中的模块可以按照 实施场景描述进行分布于实施场景的装置中,也可以进行相应变化位 于不同于本实施场景的一个或多个装置中。上述实施场景的模块可以 合并为一个模块, 也可以进一步拆分成多个子模块。
上述本发明实施例序号仅仅为了描述, 不代表实施场景的优劣。 明实施例并非局限于此,任何本领域的技术人员能思之的变化都应落 入本发明实施例的业务限制范围。

Claims

权利要求
1、 一种寻呼范围的分配方法, 其特征在于, 至少包括以下步骤: 核心网控制实体接收终端设备发送的请求消息;
所述核心网控制实体判断当前是否处于核心网控制实体过载或 网络拥塞的状态;
如果判断结果为是,所述核心网控制实体将比当前为所述终端设 备分配的寻呼区域更大的位置区域作为寻呼范围分配给所述终端设 备。
2、 如权利要求 1所述的方法, 其特征在于, 所述核心网控制实 体接收终端设备发送的请求消息, 具体包括:
所述核心网控制实体接收所述终端设备发送的位置更新请求消 息,所述位置更新请求消息具体为所述终端设备在检测到自身已处于 所分配的寻呼范围之外时向所述核心网控制实体发送的; 或,
所述核心网控制实体接收所述终端设备发送的其他移动性管理 请求消息。
3、 如权利要求 2所述的方法, 其特征在于, 所述所分配的寻呼 范围, 具体为:
在所述终端设备未运行移动性管理退避定时器 MM back-off timer,且所述核心网控制实体确定未发生核心网控制实体过载或业务 网络拥塞的情况下,所述核心网控制实体根据预设策略为所述终端设 备分配的寻呼范围;
其中,所述寻呼范围所对应的区域小于或等于所述核心网控制实 体所能服务的所有位置区域。
4、 如权利要求 1所述的方法, 其特征在于, 所述核心网控制实 体将自身所能服务的所有位置区域作为寻呼范围分配给所述终端设 备, 具体为:
所述核心网控制实体在返回给所述终端设备的响应消息中携带 所述比当前为所述终端设备分配的寻呼区域更大的位置区域的信息; 或, 呼区域过程所对应的消息携带所述比当前为所述终端设备分配的寻 呼区域更大的位置区域的信息。
5、 如权利要求 1或 4所述的方法, 其特征在于, 所述比当前为 所述终端设备分配的寻呼区域更大的位置区域, 具体为:
所述核心网控制实体所能服务的所有位置区域。
6、 一种核心网控制实体, 其特征在于, 至少包括:
接收模块, 用于接收终端设备发送的请求消息;
判断模块,用于判断当前是否处于核心网控制实体过载或网络拥 塞的状态;
发送模块, 用于在所述判断模块的判断结果为是时, 将比当前为 所述终端设备分配的寻呼区域更大的位置区域作为寻呼范围分配给 所述终端设备。
7、 如权利要求 6所述的核心网控制实体, 其特征在于, 所述接 收模块, 具体用于:
接收所述终端设备发送的位置更新请求消息,所述位置更新请求 消息具体为所述终端设备在检测到自身已处于所分配的寻呼范围之 外时向所述核心网控制实体发送的,或接收所述终端设备发送的其他 移动性管理请求消息;
其中, 所述所分配的寻呼范围, 具体为在所述终端设备未运行 MM back-off timer, 且所述核心网控制实体确定未发生核心网控制实 体过载或业务网络拥塞的情况下,所述核心网控制实体根据预设策略 为所述终端设备分配的寻呼范围,所述寻呼范围所对应的区域小于或 等于所述核心网控制实体所能月良务的所有位置区域。
8、 如权利要求 6所述的核心网控制实体, 其特征在于, 所述发 送模块, 具体用于:
向所述终端设备发送携带所述比当前为所述终端设备分配的寻 呼区域更大的位置区域的信息的响应消息; 或, 息中携带所述比当前为所述终端设备分配的寻呼区域更大的位置区 域的信息。
9、 一种寻呼范围的分配方法, 其特征在于, 至少包括以下步骤: 终端设备向核心网控制实体发送请求消息;
如果所述核心网控制实体判断当前处于核心网控制实体过载或 网络拥塞的状态, 所述终端设备接收所述核心网控制实体的指示, 将 比当前为所述终端设备分配的寻呼区域更大的位置区域作为自身的 寻呼范围。
10、 如权利要求 9所述的方法, 其特征在于, 所述终端设备向核 心网控制实体发送请求消息, 具体包括:
所述终端设备向所述核心网控制实体发送位置更新请求消息,所 述位置更新请求消息具体为所述终端设备在检测到自身已处于所分 配的寻呼范围之外时向所述核心网控制实体发送的; 或,
所述终端设备向所述核心网控制实体发送移动性管理请求消息。
11、 如权利要求 10所述的方法, 其特征在于, 所述所分配的寻 呼范围, 具体为:
在所述终端设备未运行 MM back-off timer,且所述核心网控制实 体确定未发生核心网控制实体过载或业务网络拥塞的情况下,所述终 端设备接收到的所述核心网控制实体根据预设策略为所述终端设备 分配的寻呼范围;
其中,所述寻呼范围所对应的区域小于或等于所述核心网控制实 体所能服务的所有位置区域。
12、 如权利要求 9所述的方法, 其特征在于, 所述终端设备接收 所述核心网控制实体的指示,将所述核心网控制实体所能服务的所有 位置区域作为自身的寻呼范围, 具体为:
所述终端设备接收到所述核心网控制实体返回的携带所述比当 前为所述终端设备分配的寻呼区域更大的位置区域的信息的响应消 息,将所述比当前为所述终端设备分配的寻呼区域更大的位置区域作 为自身的寻呼范围; 或,
所述终端设备根据所述核心网控制实体所发起的单独的更新寻 呼区域过程所对应的消息中所携带的所述比当前为所述终端设备分 配的寻呼区域更大的位置区域的信息, 进行自身的寻呼范围的更新。
13、 如权利要求 9或 12所述的方法, 其特征在于, 所述比当前 为所述终端设备分配的寻呼区域更大的位置区域, 具体为:
所述核心网控制实体所能服务的所有位置区域。
14、 一种终端设备, 其特征在于, 至少包括:
发送模块, 用于向核心网控制实体发送请求消息;
接收模块,用于在所述核心网控制实体判断当前处于核心网控制 实体过载或网络拥塞的状态时,接收所述核心网控制实体的指示, 将 所述比当前为所述终端设备分配的寻呼区域更大的位置区域作为所 述终端设备的寻呼范围。
15、 如权利要求 14所述的终端设备, 其特征在于, 所述发送模 块, 具体用于:
向所述核心网控制实体发送位置更新请求消息,所述位置更新请 求消息具体为所述终端设备在检测到自身已处于所分配的寻呼范围 之外时向所述核心网控制实体发送的,或向所述核心网控制实体发送 移动性管理请求消息;
其中, 所述所分配的寻呼范围, 具体为在所述终端设备未运行 MM back-off timer, 且所述核心网控制实体确定未发生核心网控制实 体过载或业务网络拥塞的情况下,所述终端设备接收到的所述核心网 围所对应的区域小于或等于所述核心网控制实体所能月良务的所有位 置区域。
16、 如权利要求 14所述的终端设备, 其特征在于, 所述接收模 块, 具体用于:
接收所述核心网控制实体返回的携带所述比当前为所述终端设 备分配的寻呼区域更大的位置区域的信息的响应消息,将所述比当前 为所述终端设备分配的寻呼区域更大的位置区域作为自身的寻呼范 围; 或,
根据接收到的所述核心网控制实体所发起的单独的更新寻呼区 域过程所对应的消息中所携带的所述比当前为所述终端设备分配的 寻呼区域更大的位置区域的信息, 进行自身的寻呼范围的更新。
PCT/CN2012/072966 2011-05-24 2012-03-23 寻呼范围的分配方法和设备 Ceased WO2012159491A1 (zh)

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