WO2012130118A1 - 一种用户去附着方法和系统 - Google Patents

一种用户去附着方法和系统 Download PDF

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Publication number
WO2012130118A1
WO2012130118A1 PCT/CN2012/073029 CN2012073029W WO2012130118A1 WO 2012130118 A1 WO2012130118 A1 WO 2012130118A1 CN 2012073029 W CN2012073029 W CN 2012073029W WO 2012130118 A1 WO2012130118 A1 WO 2012130118A1
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Prior art keywords
user
detachment
detaching
exit
interface
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PCT/CN2012/073029
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English (en)
French (fr)
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朱进国
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中兴通讯股份有限公司
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Publication of WO2012130118A1 publication Critical patent/WO2012130118A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/06De-registration or detaching

Definitions

  • the present invention relates to the field of communications, and in particular, to a user detachment method and system. Background technique
  • 3GPP 3rd Generation
  • each network element defines the LTE (Long Term Evolution) system and EPC (Evolved Packet Core) of the evolution of GPRS (General Packet Radio Service)
  • LTE Long Term Evolution
  • EPC Evolved Packet Core
  • GPRS General Packet Radio Service
  • Evolved wireless nodes can provide ratios on air interfaces
  • UTRAN/GERAN Universal Mobile Telecommunication System Radio Access Network/GSM EDGE Radio Access Network
  • MME Mobility Management Entity
  • the UTRAN/GERAN refers to a GPRS wireless network, where UTRAN stands for 3G and GERAN stands for 2G.
  • the MME is a control plane entity that temporarily stores user data. It is responsible for managing and storing user equipment (UE) contexts (such as UE/user identity, mobility management status, user security parameters, etc.), and assigns temporary identifiers to users. (Globally Unique Temporary Identity); Also responsible for authenticating users when they access from LTE.
  • UE user equipment
  • the MME and the eNodeB are connected through an S 1 -C interface.
  • the SAE Gateway (System Architecture Evolution GW, SAE GW) is a user plane entity responsible for user plane data routing processing.
  • SAE GW is generally divided into service gateways. (Serving GW, SGW) and Packet Data Network Gateway (PDN GW, PGW), where Serving GW is responsible for mobility anchor between LTE and 2G/3G, and downlink data triggers MME paging in idle state; PDN GW is responsible for UE connection
  • PDN GW Packet Data Network
  • the gateway function of the PDN is used to assign a user IP (Internet Protocol) address to the user.
  • the PDN GW and the Serving GW may be combined in one physical entity.
  • the UE registers and authenticates in the MME, obtains an IP address from the PDN GW, and provides services for the user.
  • FIG. 2 is a flow chart of user registration in LTE and deletion of S1 interface. The process includes the following steps:
  • Step 201 After the terminal is powered on, the LTE module finds that the user is in the LTE coverage area, and the LTE module selects a suitable cell, initiates an RRC (Radio Resource Control) establishment request to the eNodeB, establishes an RRC connection, and then initiates a registration request, where There is a user permanent user identity IMSI;
  • RRC Radio Resource Control
  • Step 202 The eNodeB selects an appropriate MME to forward the registration request to the selected MME.
  • the MME initiates an authentication process. If the authentication succeeds, the MME obtains user subscription data from the HSS and performs subscription data check.
  • Step 203 If the MME subscription data check succeeds, select the corresponding PDN GW and the Serving GW, and then initiate a create session request to the Serving GW.
  • Step 204 The Serving GW allocates user plane tunnel information, and then forwards a create session request to the PDN GW, where the user plane tunnel information of the Serving GW is carried.
  • Step 205 The PDN GW allocates user plane tunnel information, and returns a create session response to the Serving GW. After negotiation, the user interface between Serving GW and PDN GW was successfully established!
  • Step 206 The Serving GW allocates user plane tunnel information to the S1-U interface, returns a create session response to the MME, and the MME saves the S1-U user plane tunnel information of the Serving GW.
  • QoS quality of service
  • Step 208 The MME allocates a temporary user identifier GUTI, and returns an eNodeB registration response, where the GUTI is carried.
  • Step 209 the eNodeB returns a registration response to the UE.
  • Step 210 The MME carries the S1-U user plane tunnel information allocated by the eNodeB to the Serving GW in the bearer update request.
  • Step 211 The Serving GW saves the received S1-U user plane tunnel information, and returns an MME carrying an update response.
  • the IP address of the user may be allocated by the PDN GW in step 205 and then returned to the UE through the MME; or may be obtained by the UE in other manners after step 209.
  • the terminal completes the registration process in LTE.
  • the terminal registration status is migrated to registered, and the mobility state is migrated to the connected state.
  • Step 212 The eNodeB may initiate a release request of the S1 interface due to some internal processing.
  • Step 214 After receiving the release access bearer request, the Serving GW releases the S1-U tunnel information of the eNodeB, and returns to release the access bearer response.
  • Step 215 The MME initiates a SI UE context release request to the eNodeB.
  • Step 216 If the RRC connection exists, the eNodeB initiates an RRC release process.
  • Step 217 the eNodeB returns a SI UE context release response.
  • the Serving GW still has the user control plane information, but deletes the eNodeB user plane tunnel information on the S1 interface, PDN.
  • the user's context is still preserved on the GW And IP address.
  • 3GPP defines a lot of mobility management mechanisms, such as when the user moves, the location update needs to be initiated, the paging process initiated by the network side, the access process after the user receives the paging, and the user idle (Idle).
  • ISR Interworking of 3G and LTE in Idle mode, etc.
  • IPv4 addresses are also of concern to operators. Most of the idle user networks in the system still retain IPv4 addresses. With the increasing number of mobile users, especially data card users, the shortage of IPv4 addresses will become more and more prominent in the absence of large-scale deployment of IPv6. Summary of the invention
  • the main object of the present invention is to provide a user detachment method and system to reduce system complexity and reduce system load.
  • a method for user attachment including:
  • the method for determining that the user wants to exit the connection state is:
  • the mobility management entity MME Upon receiving the S1 interface release request of the evolved wireless node eNodeB, or the mobility management entity MME locally determines that the S1 interface needs to be released, it is determined that the user wants to exit the connected state.
  • the method for determining the need to detach is:
  • the MME determines that the user needs to be attached according to the user subscription information, or the terminal capability information, or the S1 interface information.
  • the initiating de-attachment for the user includes: A detach request is initiated to the terminal, and a subsequent session deletion process.
  • a user detachment system including a connection state decision unit and a detachment unit; wherein the connection state decision unit is configured to determine that the user wants to exit the connection state;
  • the detaching unit is configured to directly initiate detaching for the user after the connection state determining unit determines that the user wants to exit the connected state.
  • the connection state determining unit is configured to: when receiving the S1 interface release request of the eNodeB, or when the MME locally determines that the S1 interface needs to be released, determine that the user wants to exit the connection state.
  • the detaching unit is further used to determine that it needs to be attached before initiating the detaching.
  • the detaching unit is used to: when it is determined that detachment is required:
  • the user subscription information or the terminal capability information, or the S1 interface information, it is determined that the user needs to be attached.
  • the detaching unit is configured to: when initiating detachment for the user:
  • a detach request is initiated to the terminal, and a subsequent delete session process is triggered.
  • the user detachment technology of the present invention creatively proposes to directly initiate detachment when the user exits the connected state, thereby canceling the idle state of the user, thereby avoiding many process processes in the idle state, reducing system complexity, and reducing the network. Load, while increasing the utilization of IPv4 addresses.
  • Figure 1 is a schematic diagram of a network system framework
  • FIG. 2 is a flowchart of a user registration in LTE and an S1 interface deletion in the prior art
  • FIG. 3 is a flowchart of a user registering in LTE and deleting an S1 interface according to an embodiment of the present invention
  • FIG. 4 is a core network user registration state transition.
  • FIG. 5 is a schematic diagram of a user detachment process according to an embodiment of the present invention
  • FIG. 6 is a diagram of a user detachment system according to an embodiment of the present invention. detailed description
  • FIG. 3 is a flowchart of the user registration in LTE and the deletion of the S1 interface in the present invention, causing the user to enter an unregistered state, and the process includes the following steps:
  • Step 301 The UE (also referred to as a terminal) initiates a registration process in LTE, and the process is the same as step 201 to step 211 of FIG. 2.
  • Step 302 The eNodeB may initiate a release request of the S1 interface due to some internal processing.
  • Step 304 The UE returns a detach response.
  • Step 305 The MME initiates a delete session request to the Serving GW.
  • Step 306 After receiving the delete session request, the Serving GW forwards the request to the PDN GW.
  • Step 307 After receiving the delete session request, the PDN GW deletes the user context, deletes the user IP address, and returns a delete session response.
  • Step 308 The Serving GW deletes the user context and returns a delete session response to the MME.
  • Step 310 If the RRC connection exists, the eNodeB initiates an RRC release process.
  • Step 311 The eNodeB returns a SI UE context release response.
  • the MME de-attaches the terminal, and the UE enters an unregistered state.
  • the Serving GW and the PDN GW do not save the user context, and release the IPv4 address of the user.
  • the terminal is not in the Idle state, thus avoiding mobility processing in the Idle state and reducing system load.
  • the registration process needs to be re-initiated and the IP address is obtained.
  • the process of active paging of the network is not supported. User only After re-registering, you can communicate with other users.
  • the user may decide whether to attach or enter the idle state according to the user subscription, or the terminal capability, or the S1 interface information.
  • the user subscription information is signed from the user home server and brought to the user during the process of inserting the user data; the terminal capability is brought to the user in the registration request, and the S1 interface information is the locally configured information on the S1 interface.
  • Figure 4 is a migration diagram of the user registration status in Figure ,. As shown in Figure 4, the user is in an unregistered state, and the user is migrated to the registered state through the registration process. When the S1 interface is released, the user needs to be migrated from the registered state. To the unregistered state, delete the bearer and release the IP address.
  • Step 510 Determine that the user wants to exit the connected state.
  • Step 520 Directly initiate detachment for the user.
  • FIG. 6 is a diagram of a user detachment system according to an embodiment of the present invention, the system including a connected connection state decision unit and a detachment unit.
  • connection state decision unit can determine that the user wants to exit the connection state; the detachment unit can directly initiate detachment for the user after the connection state decision unit determines that the user wants to exit the connection state.
  • the connection state determining unit when determining that the user wants to exit the connection state, is specifically configured to: when receiving the S1 interface release request of the eNodeB, or when the MME locally determines that the S1 interface needs to be released, determine that the user wants to exit the connection state. .
  • the detaching unit is further used to determine that detachment is required before initiating the detachment.
  • the detachment unit determines that detachment is required, the detachment unit is specifically configured to: determine that the user needs to be detached according to the user subscription information, or the terminal capability information, or the S1 interface information.
  • the detaching unit When the detaching unit initiates detachment for the user, it is specifically used to: initiate a detach request to the terminal, and trigger a subsequent delete session process.
  • the user detachment technique of the present invention creatively proposes to directly initiate detachment when the user exits the connected state, thereby canceling the idle state of the user, thereby avoiding many idle states.
  • the process process can reduce system complexity, reduce network load, and improve the utilization of IPv4 addresses.

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

Abstract

本发明公开了一种用户去附着方法和系统,均可在确定用户要退出连接态时,直接发起针对用户的去附着。本发明的用户去附着技术创造性地提出当用户退出连接态时直接发起去附着,这样就取消了用户的空闲状态,从而避免了空闲态下的很多流程处理过程,可以减少系统复杂度,降低网络负荷,同时提高IPv4地址的利用率。

Description

一种用户去附着方法和系统 技术领域
本发明涉及通信领域, 具体涉及一种用户去附着方法和系统。 背景技术
为了更好的满足用户对无线连接带宽的需求, 3GPP ( 3rd Generation
Partnership Project,第三代合作伙伴计划)定义了 GPRS( General packet radio service, 通用分组无线业务 ) 的演进系统 LTE ( Long Term Evolution, 长期 演进) 系统和 EPC ( evolved Packet Core, 演进的分组核心网), 架构如图 1 所示, 各网元的功能如下说明:
演进的无线节点 ( evolved NodeB , eNodeB ) 可以在空口上提供比
UTRAN/GERAN ( Universal Mobile Telecommunication System Radio Access Network/GSM EDGE Radio Access Network,全球移动通信系统无线接入网) 更高的上下行速率、 更低的传输延迟和更加可靠的无线传输。 eNodeB为终 端的接入提供无线资源, 同时和核心网移动性管理实体 ( Mobility Management Entity, MME )之间建立 SI控制面链接。所述 UTRAN/GERAN 指 GPRS的无线网络, 其中 UTRAN代表 3G, GERAN代表 2G。
MME是控制面实体, 临时存储用户数据的服务器, 负责管理和存储用 户设备 ( User Equipment, UE )上下文(比如 UE/用户标识、 移动性管理状 态、 用户安全参数等), 为用户分配临时标识 GUTI ( Globally Unique Temporary Identity, 全球唯一临时标识); 还负责在用户从 LTE接入时对用 户进行鉴权。 MME和 eNodeB之间通过 S 1 -C接口相连。
SAE网关( SAE Gateway, System Architecture Evolution GW, SAE GW ) 是用户面实体, 负责用户面数据路由处理。 SAE GW—般分为服务网关 ( Serving GW, SGW )和分组数据网网关( PDN GW, PGW ), 其中 Serving GW负责 LTE和 2G/3G之间移动性的锚点、空闲状态下下行数据触发 MME 寻呼; PDN GW负责 UE接入 PDN ( Packet Data Network, 分组数据网 )的 网关功能,为用户分配用户 IP ( Internet Protocol, 网际协议)地址。 PDN GW 和 Serving GW可能合设在一个物理实体中。
UE在 MME中注册并鉴权, 从 PDN GW获取 IP地址, 为用户提供服 务。
图 2是用户在 LTE中的注册以及 S1接口删除的流程图,该流程包括以 下步驟:
步驟 201, 终端开机之后, LTE模块发现用户处于 LTE覆盖范围, 则 LTE模块选择合适小区, 向 eNodeB发起 RRC ( Radio Resource Control, 无 线资源控制)建立请求, 建立 RRC连接, 然后发起注册请求, 其中携带有 用户永久用户标识 IMSI;
步驟 202, eNodeB选择合适的 MME, 将注册请求转发到所选 MME。 根据 3GPP定义的规范, MME启动鉴权过程, 如果鉴权成功, 则 MME向 HSS获取用户签约数据, 并进行签约数据检查。
步驟 203 , MME签约数据检查成功,则选择对应的 PDN GW和 Serving GW, 然后向 Serving GW发起创建会话请求。
步驟 204, Serving GW分配用户面隧道信息, 然后向 PDN GW转发创 建会话请求, 其中携带有 Serving GW的用户面隧道信息。
步驟 205 , PDN GW分配用户面隧道信息, 向 Serving GW返回创建会 话响应。 通过协商之后, 成功建立了 Serving GW和 PDN GW之间的用户 面! ¾道。
步驟 206, Serving GW为 S1-U接口分配用户面隧道信息, 向 MME返 回创建会话响应, MME保存 Serving GW的 S1-U用户面隧道信息。 步驟 207, MME根据 PDN GW返回的服务质量( QoS )信息, 请求 eNodeB建立用户面的无线资源。 这样, UE经由 eNodeB、 Serving GW到 PDN GW的用户面通道就打通了。
步驟 208, MME分配临时用户标识 GUTI, 返回 eNodeB注册响应 , 其 中携带有该 GUTI。
步驟 209, eNodeB将注册响应返回给 UE。
步驟 210, MME将 eNodeB分配的 S1-U用户面隧道信息在承载更新请 求中携带给 Serving GW。
步驟 211 , Serving GW保存收到的 S1-U用户面隧道信息,并返回 MME 载更新响应。
用户的 IP地址可以在步驟 205中由 PDN GW分配,然后通过 MME返 回给 UE; 也可以在步驟 209之后, 由 UE通过其他方式获得。 通过上述过 程, 终端完成了在 LTE的注册过程。 终端注册状态迁移到已注册, 移动性 状态迁移到连接态。
步驟 212, eNodeB由于一些内部处理, 可能发起 S1接口的释放请求。 步驟 213 , MME收到 eNodeB的 S1接口释放请求, 或者 MME本地决 定需要释放 S1接口, 于是 MME先向 Serving GW发起释放接入承载请求。
步驟 214, Serving GW收到释放接入承载请求之后, 释放 eNodeB的 S1-U隧道信息, 并返回释放接入承载响应。
步驟 215 , MME向 eNodeB发起 SI UE上下文 放请求。
步驟 216, 如果 RRC连接存在, 则 eNodeB发起 RRC释放过程。
步驟 217, eNodeB返回 SI UE上下文释放响应。
上述过程之后, UE注册状态不变, 仍然是已注册, 但是 UE的移动性 状态迁移到空闲态, Serving GW中仍然有用户控制面信息, 但是删除了 S1 接口上的 eNodeB用户面隧道信息, PDN GW上仍然保留了用户的上下文 和 IP地址。
用户在空闲态时, 3GPP定义了很多移动性管理机制, 比如当用户移动 时需要发起位置更新、 网络侧发起的寻呼过程、 用户收到寻呼之后的接入 过程、 用户空闲 (Idle )到连接态的接入过程、 Idle模式下 3G和 LTE的互 通等, 为了避免空闲模式下 3G和 LTE之间来回选网而导致的过多注册消 息,还定义了 ISR ( Idle mode signaling reduction, 空闲模式信令缩减)过程, 这些过程导致终端和网络均非常复杂。
另外, IPv4地址的短缺问题也是运营商所关注的。 现在系统中大部分 处于空闲的用户网络还是保留 IPv4地址的, 随着移动用户特别是数据卡用 户的逐渐增多, 在 IPv6没有大规模部署的情况下, IPv4地址短缺问题会越 来越突出。 发明内容
有鉴于此, 本发明的主要目的在于提供一种用户去附着方法和系统, 以减少系统复杂度, 降低系统负荷。
为达到上述目的, 本发明的技术方案是这样实现的:
一种用户去附着方法, 包括:
确定用户要退出连接态时, 直接发起针对用户的去附着。
其中, 所述确定用户要退出连接态的方法为:
在收到演进的无线节点 eNodeB的 S1接口释放请求, 或者移动性管理 实体 MME本地决定需要释放 S1接口时, 确定用户要退出连接态。
其中, 发起所述去附着之前, 还确定需要去附着。
其中, 所述确定需要去附着的方法为:
MME根据用户签约信息, 或者终端能力信息, 或者 S1接口信息决定 需要将用户去附着。
其中, 所述发起针对用户的去附着, 包括: 向终端发起去附着请求, 以及后续的删除会话过程。
一种用户去附着系统, 包括连接态判决单元、 去附着单元; 其中, 所述连接态判决单元, 用于确定用户要退出连接态;
所述去附着单元, 用于在连接态判决单元确定用户要退出连接态后, 直接发起针对用户的去附着。
其中, 所述连接态判决单元在确定用户要退出连接态时, 用于: 在收到 eNodeB的 S1接口释放请求, 或者 MME本地决定需要释放 S1 接口时, 确定用户要退出连接态。
其中, 所述去附着单元在发起所述去附着之前, 还用于确定需要去附 着。
其中, 所述去附着单元在确定需要去附着时, 用于:
根据用户签约信息, 或者终端能力信息, 或者 S1接口信息决定需要将 用户去附着。
其中, 所述去附着单元在发起针对用户的去附着时, 用于:
向终端发起去附着请求, 以及触发后续的删除会话过程。
本发明的用户去附着技术创造性地提出当用户退出连接态时直接发起 去附着, 这样就取消了用户的空闲状态, 从而避免了空闲态下的很多流程 处理过程, 可以减少系统复杂度, 降低网络负荷, 同时提高 IPv4地址的利 用率。 附图说明
图 1为网络系统框架示意图;
图 2为现有技术中用户在 LTE中注册以及 S1接口删除的流程图; 图 3为本发明实施例的用户在 LTE中注册以及 S1接口删除的流程图; 图 4为核心网用户注册状态迁移原理示意图;
图 5为本发明实施例的用户去附着流程简图; 图 6为本发明实施例的用户去附着系统图。 具体实施方式
下面结合附图对本发明所述方法做进一步详细说明。
图 3是本发明中用户在 LTE中注册以及 S1接口删除导致用户进入未注 册状态的流程图, 该流程包括以下步驟:
步驟 301 , UE (也可称为终端 )在 LTE发起注册过程, 该过程与图 2 的步驟 201至步驟 211相同。
步驟 302, eNodeB由于一些内部处理, 可能发起 S1接口的释放请求。 步驟 303 , MME收到 eNodeB的 S1接口释放请求, 或者 MME本地决 定需要释放 S1接口, 进而根据用户签约信息, 或者终端能力信息, 或者 S1 接口信息决定需要将该用户去附着, 于是 MME向终端发起去附着请求。
步驟 304, UE返回去附着响应。
步驟 305 , MME向 Serving GW发起删除会话请求。
步驟 306, Serving GW收到删除会话请求之后, 转发给 PDN GW。 步驟 307, PDN GW收到删除会话请求之后, 删除用户上下文, 删除 用户 IP地址 , 并返回删除会话响应。
步驟 308, Serving GW删除用户上下文, 向 MME返回删除会话响应。 步驟 309, MME向 eNodeB发起 SI UE上下文释放请求。
步驟 310, 如果 RRC连接存在, 则 eNodeB发起 RRC释放过程。
步驟 311 , eNodeB返回 SI UE上下文释放响应。
通过上述过程, MME将终端去附着, UE进入未注册状态, Serving GW 和 PDN GW不保存用户上下文, 释放用户的 IPv4地址。 终端没有处于 Idle 状态, 从而避免了 Idle状态下的移动性处理, 降低了系统负荷。
当用户需要发送数据时, 需要重新发起注册过程并获取 IP地址; 该方 法中因为用户已经去注册, 所以也不支持网络主动寻呼的过程。 用户只有 重新注册之后, 才能和其他用户通讯。
上述步驟 303 中, ΜΜΕ可以根据用户签约, 或者终端能力, 或者 S1 接口信息来决定是否需要去附着还是进入空闲态。 用户签约信息是从用户 归属服务器中签约并在插入用户数据过程中带给 ΜΜΕ的;终端能力是在注 册请求中带给 ΜΜΕ的, S1接口信息是 S1接口上 ΜΜΕ本地配置的信息。
图 4是 ΜΜΕ中用户注册状态迁移图, 由图 4可见,用户处于未注册状 态, 通过注册过程, 将用户迁移到已注册状态; 而当 S1接口释放时, ΜΜΕ 需要将用户从已注册状态迁移到未注册状态, 删除承载并释放 IP地址。
由以上所述技术描述可见, 本发明的用户去附着操作思路可以表示如 图 5所示的流程, 该流程包括以下步驟:
步驟 510: 确定用户要退出连接态。
步驟 520: 直接发起针对用户的去附着。
为了保证上述技术描述以及操作思路能够顺利实现, 可以进行如图 6 所示的设置。 参见图 6, 图 6为本发明实施例的用户去附着系统图, 该系统 包括相连的连接态判决单元、 去附着单元。
在实际应用时, 连接态判决单元能够确定用户要退出连接态; 去附着 单元能够在连接态判决单元确定用户要退出连接态后, 直接发起针对用户 的去附着。
需要说明的是, 所述连接态判决单元在确定用户要退出连接态时, 具 体用于: 在收到 eNodeB的 S1接口释放请求, 或者 MME本地决定需要释 放 S1接口时, 确定用户要退出连接态。 所述去附着单元在发起所述去附着 之前, 进一步用于确定需要去附着。 所述去附着单元在确定需要去附着时, 具体用于: 根据用户签约信息, 或者终端能力信息, 或者 S1接口信息决定 需要将用户去附着。 所述去附着单元在发起针对用户的去附着时, 具体用 于: 向终端发起去附着请求, 以及触发后续的删除会话过程。 综上所述可见, 无论是方法还是系统, 本发明的用户去附着技术创造 性地提出当用户退出连接态时直接发起去附着, 这样就取消了用户的空闲 状态, 从而避免了空闲态下的很多流程处理过程, 可以减少系统复杂度, 降低网络负荷, 同时提高 IPv4地址的利用率。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种用户去附着方法, 包括:
确定用户要退出连接态时, 直接发起针对用户的去附着。
2、 根据权利要求 1所述的方法, 其中, 所述确定用户要退出连接态的 方法为:
在收到演进的无线节点 eNodeB的 S1接口释放请求, 或者移动性管理 实体 MME本地决定需要释放 S1接口时, 确定用户要退出连接态。
3、 根据权利要求 1所述的方法, 其中, 发起所述去附着之前, 还确定 需要去附着。
4、根据权利要求 3所述的方法, 其中, 所述确定需要去附着的方法为: MME根据用户签约信息, 或者终端能力信息, 或者 S1接口信息决定 需要将用户去附着。
5、 根据权利要求 1至 4任一项所述的方法, 其中, 所述发起针对用户 的去附着, 包括:
向终端发起去附着请求, 以及后续的删除会话过程。
6、 一种用户去附着系统, 包括连接态判决单元、 去附着单元; 其中, 所述连接态判决单元, 用于确定用户要退出连接态;
所述去附着单元, 用于在连接态判决单元确定用户要退出连接态后, 直接发起针对用户的去附着。
7、 根据权利要求 6所述的系统, 其中, 所述连接态判决单元在确定用 户要退出连接态时, 用于:
在收到 eNodeB的 S1接口释放请求, 或者 MME本地决定需要释放 S1 接口时, 确定用户要退出连接态。
8、 根据权利要求 6所述的系统, 其中, 所述去附着单元在发起所述去 附着之前, 还用于确定需要去附着。
9、 根据权利要求 8所述的系统, 其中, 所述去附着单元在确定需要去 附着时, 用于:
根据用户签约信息, 或者终端能力信息, 或者 S1接口信息决定需要将 用户去附着。
10、 根据权利要求 6至 9任一项所述的系统, 其中, 所述去附着单元 在发起针对用户的去附着时, 用于:
向终端发起去附着请求, 以及触发后续的删除会话过程。
PCT/CN2012/073029 2011-03-29 2012-03-26 一种用户去附着方法和系统 WO2012130118A1 (zh)

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CN101394340A (zh) * 2007-09-19 2009-03-25 华为技术有限公司 数据传输方法、系统和装置
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