WO2010075651A1 - 无线资源连接重建方法以及终端 - Google Patents

无线资源连接重建方法以及终端 Download PDF

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Publication number
WO2010075651A1
WO2010075651A1 PCT/CN2008/073905 CN2008073905W WO2010075651A1 WO 2010075651 A1 WO2010075651 A1 WO 2010075651A1 CN 2008073905 W CN2008073905 W CN 2008073905W WO 2010075651 A1 WO2010075651 A1 WO 2010075651A1
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WO
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Prior art keywords
terminal
configuration
radio resource
connection reestablishment
connection
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PCT/CN2008/073905
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English (en)
French (fr)
Inventor
王雪飞
杜忠达
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to PCT/CN2008/073905 priority Critical patent/WO2010075651A1/zh
Publication of WO2010075651A1 publication Critical patent/WO2010075651A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment

Definitions

  • the present invention relates to the field of communications, and in particular, to a radio resource connection re-establishment method and a terminal.
  • Radio Resource Control refers to a process of radio resource processing, for example, system message processing, connection control, and mobility. Sex management, measurement, etc.
  • the connection control part of the Access Stratum (abbreviated as AS) further includes a plurality of sub-processes, for example, a paging process and a radio resource control connection establishment (Radio Resource Control).
  • Radio Resource Control Connection establishment procedure
  • radio resource control connection re-establishment procedure initial security activation procedure
  • radio resource control connection configuration RRC Connection Reconfiguration
  • radio resource control connection release The RRC Connection Release process, the Radio Resource Configuration process, the User Equipment (UE) conversion radio resource connection status (Radio Resource Control Connected) process, and the like.
  • the re-establishment process is as follows: After the connection re-establishment process is triggered, the terminal stops the unnecessary timer (for example, the T310 timer), starts the timer T311 in the radio resource connection process, suspends the SRB except SRB0, resets the MAC, and applies The default physical channel configuration, semi-persistent scheduling configuration, and MAC master configuration are followed by cell reselection. After the terminal selects a suitable cell, the terminal stops the timer T311 and starts the timer.
  • the unnecessary timer for example, the T310 timer
  • starts the timer T311 in the radio resource connection process suspends the SRB except SRB0
  • resets the MAC resets the MAC
  • the default physical channel configuration, semi-persistent scheduling configuration, and MAC master configuration are followed by cell reselection.
  • the terminal stops the timer T311 and starts the timer.
  • the network After receiving the radio resource connection reestablishment request message of the terminal, the network sends a radio resource connection reestablishment message to the terminal. After receiving the radio resource connection reestablishment message sent by the network, the terminal stops the timer T301 and reconstructs the number of packets. According to the Packet Data Conrergence Protocol (PDCP) entity and the Radio Link Control (RLC) entity, the previously suspended SRBs are re-used, and security-related configurations are performed. Action, finally send a radio resource setup complete message to the network. In the above process, the RRC Connection Re-establishment process plays a very important role.
  • PDCP Packet Data Conrergence Protocol
  • RLC Radio Link Control
  • the UE After receiving the RRC Connection Reestablishment message on the network side, the UE configures the corresponding parameters according to the configuration parameters in the message. If the configuration is successful, the UE sends an RRC Connection Reestablishment Complete message to the network side.
  • the present invention has been made in view of the problem in the related art that there is no corresponding processing method after a terminal fails to configure a configuration parameter in a connection message according to a radio resource control connection. To this end, the main object of the present invention is to provide an improvement.
  • the wireless resource connection reconstruction scheme solves the above problems in the related art.
  • a radio resource connection re-establishment method includes: after receiving the radio resource control connection reestablishment message sent by the network side, the terminal performs configuration according to the radio resource control connection reestablishment message, and if the configuration fails, performs local resource release and status. Transfer, or initiate the wireless resource connection re-establishment process again.
  • a terminal is provided.
  • the terminal includes: a receiving module, configured to receive a radio resource control connection reestablishment message sent by the network side; a configuration module, configured to perform, according to a radio resource control connection reestablishment message received by the receiving module, to perform configuration; If the configuration of the configuration module fails, the local resource release and state transition processing is performed, or the wireless resource connection re-establishment process is initiated again.
  • the UE performs the local resource release and state transition in the case of the configuration failure, or initiates the operation of the radio resource re-establishment process again, and solves the related art in the UE that the radio resource control connection is reconstructed according to the radio resource. There is no configuration parameter configuration failure in the message.
  • FIG. 1 is a flowchart of a radio resource connection re-establishment method according to an embodiment of the present invention
  • FIG. 2 is a signaling flowchart of a successful RRC connection reestablishment process according to an embodiment of the present invention
  • FIG. 4 is a signaling flowchart of a network that is rejected by a network after the RRC connection is initiated.
  • FIG. 4 is a signaling flowchart of releasing a local resource and performing a state transition when a terminal fails to be configured after the connection is initiated according to an embodiment of the present invention;
  • FIG. 6 is a block diagram of the terminal according to the embodiment of the present invention.
  • the present invention is not described in the following. The invention provides an improved configuration processing solution based on the related art.
  • the UE after receiving the RRC Connection Reestablishment message, the UE cannot use the parameters in the RRC Connection Reestablishment message. After the configuration of one or several parameters is completed, that is, the configuration of all the parameters cannot be completed, the UE performs the local resource release and the state transfer, or the UE initiates the wireless resource connection again. New establishment process.
  • the preferred embodiments of the present invention are described in conjunction with the accompanying drawings, which are to be construed as illustrative and not restrictive. In addition, various details may be made in the following embodiments and examples without departing from the spirit and scope of the appended claims.
  • the application scenario of the embodiment of the present invention is: after the trigger condition of the radio resource connection reestablishment is satisfied, the terminal selects a suitable cell, and The cell sends a radio resource connection reestablishment request.
  • 1 is a flowchart of a method for reestablishing a radio resource connection according to an embodiment of the present invention. As shown in FIG. 1, the following process is included (step S102 - step S108): Step S102, the UE receives an RRC connection reestablishment message sent by the network side, and According to the message, the UE can perform wireless resource configuration and security parameter configuration according to the RRC connection reestablishment message.
  • the above radio bearers include but are not limited to: signaling radio bearers.
  • the above security parameters include but are not limited to: integrity protection parameters (parameters related to integrity protection), encryption parameters (encryption related parameters).
  • the UE may configure parameters in the UE according to the configuration parameters carried in the RRC connection reestablishment message. For example, the UE may use the radio resource configuration parameter in the RRC Connection Reestablishment message (Radio Resource Configuration). Reconfigure the Signalling Radio Bearer 1 (SRB1 for short) and continue to use SRB1 after the configuration is complete.
  • the UE can also re-establish other corresponding parameters in the RRC connection reestablishment message. Update (configure) security-related parameters and configure the underlying integrity protection and encryption.
  • the terminal may determine that the configuration fails. It should be noted that, in an actual application, the RRC connection reestablishment message carries multiple parameters, and the UE performs different configurations according to multiple parameters. In the parameter configuration process, if one or more parameters are not present, If the configuration is successful, the UE can determine that the configuration has failed. For example, the terminal receives the radio resource connection message sent by the network, where the SRB id parameter is set to 1, but the terminal configures the SRB id parameter to 2. Therefore, the terminal fails to be configured on the SRB id parameter, even if it is configured in other parameters. In the case of success, then the configuration of the terminal still fails.
  • Step S104 The UE performs local resource release and state transition in case of configuration failure.
  • the UE occupies radio resources. However, if the UE fails to be configured, the system will waste the system resources. Therefore, the UE needs to occupy the radio resources. Release (ie, the terminal releases all radio resources), including releasing the radio link control entity, and the packet data convergence protocol entity, thereby making the system more optimized.
  • the UE has two states in the RRC connection re-establishment process: the connection state and the idle state. Therefore, if the UE fails to configure, it needs to perform state transition, for example: transition from the connection state to the idle state.
  • Step S106 The terminal may initiate the radio resource connection re-establishment process again if the configuration fails. After initiating the radio resource connection re-establishment process, the terminal will configure the radio resource again. In the actual application, the terminal may selectively set a counter to set the number of times to initiate again, or may choose not to set the counter, but not setting the counter may result in Infinite loop. If the terminal selects to set the counter, and the terminal completes the radio resource configuration within a prescribed number of times, the terminal performs step S108, otherwise performs step S104. Step S108: After successfully completing all radio resource configurations, the terminal performs corresponding processing, for example, performing operations such as updating, configuring, and measuring security related parameters.
  • FIG. 2 is a signaling flowchart of an RRC connection re-establishment process according to an embodiment of the present invention. As shown in FIG.
  • an RRC connection re-establishment process is triggered, triggered.
  • the conditions include, but are not limited to, the UE detects that the radio link layer fails, the UE handover fails, the UE integrity protection fails, the UE RRC connection reconfiguration fails, etc.; the second step, when the RRC connection re-establishment process is triggered, if the timer Before T300 When the UE is started, the UE stops the timer, starts the timer T311, and performs the following operations: Reset the Medium Access Control (MAC), the default physical channel, and the default half. The configuration is performed, and the configuration of the default MAC is performed.
  • MAC Medium Access Control
  • the UE performs cell selection.
  • the UE performs the process of leaving the radio resource connection state (RRC_CONNECTED) and set the corresponding release cause value; if the UE selects an appropriate Evolved Universal Terrestrial Radio Access (E-UTRA)
  • the UE stops the timer T311, starts the timer T301, and sets the parameters of the RRC connection reestablishment request message, including but not limited to the following settings: setting the identity of the UE (UE-Identity, referred to as UE ID), RRC Reestablishment Cause, etc., after the setup is completed, the UE goes to the network.
  • Step 4 After receiving the connection re-establishment request message sent by the UE, the network sends an RRC Connection Reestablishment message to the UE, after the UE receives the RRC Connection Reestablishment message , will be configured according to the message to the corresponding parameters. In the configuration, there are two situations, namely, the configuration succeeds and the configuration fails. The following describes the configuration success and configuration failure. After the UE successfully receives the RRC connection reestablishment message, the UE stops the timer T301 and re-establishes the Packet Data Convergence Protocol (PDCP) entity and the radio link control (Radio Link Control).
  • PDCP Packet Data Convergence Protocol
  • Radio Link Control Radio Link Control
  • the RLC is an entity; and the radio resource configuration of the radio is carried out according to the radio resource control connection reestablishment message.
  • the UE may reconfigure the SRB1 according to the received Radio Resource Configuration parameter, and continue to use the SRB1 after the configuration is completed; in addition, the UE may also perform the security parameter according to the RRC connection reestablishment message.
  • Configuration For example, the UE updates the security-related configuration according to the corresponding parameter in the received RRC connection reestablishment message, and performs related integrity protection and strength p-density configuration on the bottom layer; after the configuration is complete, the UE sends the configuration to the network side.
  • the RRC re-establishment completion message is an entity; and the radio resource configuration of the radio is carried out according to the radio resource control connection reestablishment message.
  • FIG. 3 is a flow chart of signaling rejected by a network after an RRC connection is initiated, according to an embodiment of the present invention. As shown in FIG. 3, if the UE receives the RRC Connection Reestablishment Reject message (RRC Connection Reestablishment Reject) sent by the network side, the UE directly performs the procedure of leaving the RRC connection state, and sets the release cause value to RRC.
  • RRC Connection Reestablishment Reject RRC Connection Reestablishment Reject
  • FIG. 4 is a signaling flow diagram of the terminal releasing local resources and performing state transition after the terminal configuration fails after the connection is initiated according to the embodiment of the present invention.
  • the UE receives the RRC connection sent by the network. After the message is reconstructed, it is configured according to the radio resource configuration parameter ( Radio Resource Configuration) in the message, for example, the radio resource configuration of the radio resource and the configuration of the security parameter according to the RRC connection reestablishment message. If the terminal cannot complete some or all of the configuration in the radio resource configuration parameter (radioResourceConfiguration), the terminal performs local resource release and state transfer, and sets the release cause value to RRC connection failure.
  • Radio Resource Configuration Radio Resource Configuration
  • FIG. 5 is a signaling flowchart of a process in which a terminal initiates a radio resource connection re-establishment process after a terminal fails to be configured after a connection is initiated according to an embodiment of the present invention.
  • the terminal may further select to set a counter, and set the terminal to initiate the re-establishment process of the re-establishment of the radio resource connection again by the counter, for example, for example, Set the predetermined number of times to N, and set N to 3; if the terminal successfully completes all configurations within the specified number of times 3, then perform step S108 in FIG.
  • FIG. 6 is a block diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 6, the UE includes a receiving module 60, a configuration module 62, and a processing module 64. Module 66 is called.
  • each module in the UE described above will be further described with reference to the accompanying drawings.
  • the receiving module 60 is configured to receive the RRC connection reestablishment message sent by the network side; the configuration module 62 is connected to the receiving module 60, configured to perform configuration according to the RRC connection reestablishment message received by the receiving module 60; Connected to the configuration module 62 and the processing module 64, for invoking the processing module 64 when the configuration module 62 fails to configure.
  • Processing module 64 is connected to the calling module Block 66 is configured to perform local resource release and state transition processing in the case of calling module 66, or initiate a radio resource connection re-establishment procedure again.
  • the configuration module 62 can configure the parameters in the UE according to the configuration parameters carried in the RRC connection reestablishment message, for example, the configuration module 62 can determine the radio resource configuration parameters in the RRC Connection Reestablishment message. Radio Resource Configuration) reconfigures SRB1 and continues to use SRB1 after configuration is complete; in addition, configuration module 62 may update security-related parameters according to corresponding parameters in the RRC Connection Reestablishment message, and The underlying layer is configured for associated integrity protection and encryption. However, if the configuration module 62 is unable to configure the parameters in the UE according to the carried configuration parameters, it may be determined that the configuration fails.
  • Radio Resource Configuration Radio Resource Configuration
  • the RRC Connection Reestablishment message carries multiple parameters, and the configuration module 62 performs different configurations according to multiple parameters. In the configuration process, if there are one or more parameters. If the configuration is not successful, you can determine that the configuration has failed. For example, the receiving module 60 receives the radio resource connection message sent by the network, where the SRB id parameter is set to 1, but the configuration module 62 configures the SRB id parameter to 2. Therefore, the configuration module 62 fails to configure the SRB id parameter. The configuration fails even if all other parameters are configured successfully. It should be noted that, in the RRC connection re-establishment process, the UE occupies the radio resources of the system.
  • the configuration module 62 of the UE fails to be configured, if the radio resources are continuously occupied, the system resources are wasted. Therefore, the processing is performed. Module 64 needs to release the occupied radio resources, thereby optimizing the system.
  • the UE may have two states in the RRC connection re-establishment process: the connection state and the idle state. Therefore, in the case that the configuration module 62 fails to be configured, the processing module 64 needs to perform a state transition operation on the terminal, for example: Transition from a connected state to an idle state.
  • the configuration module 62 may also initiate the radio resource connection re-establishment process again if the configuration fails.
  • the configuration module 62 configures the radio resource again.
  • the configuration module 62 can selectively set a counter to set the number of times to be initiated again, or can choose not to set the counter, but does not set Counters can cause an infinite loop. If the configuration module 62 selects the setting counter and completes the radio resource configuration within a specified number of times, the terminal may send a radio resource connection reestablishment success message to the network side, otherwise the configuration module 62 performs an operation of performing local resource release and state transition. It is to be understood that various changes and combinations may be made to the various modules described above without departing from the spirit and scope of the invention.
  • the UE performs the local resource release and the state transition in the case of the configuration failure, and the related configuration fails when the configuration parameter configuration in the UE according to the radio resource control connection reestablishment message fails.
  • the UE can perform corresponding processing in the case of successful configuration and failure, filling the gap in the related technology.

Description

无线资源连接重建方法以及终端
技术领域 本发明涉及通信领域, 并且特别地, 涉及一种无线资源连接重建方法以 及终端。 背景技术 目前, 在长期演进 ( Long Term Evolution, 简称为 LTE ) 系统中, 无线 资源控制 (Radio Resource Control, 简称为 RRC ) 涉及到无线资源处理的过 程, 例如, 系统消息的处理、 连接控制、 移动性管理、 测量等。 在上述的无线资源的处理过程中, 在接入层 (Access Stratum, 简称为 AS ) 的连接控制部分还包括许多子过程, 例如, 寻呼 (Paging ) 过程、 无线 资源控制连接建立 ( Radio Resource Control connection establishment ) 过程、 无线资源控制连接重新建立 ( Radio Resource Control Connection Re-establishment ) 过程、 初始安全激活 ( Initial security activation ) 过程, 无 线资源控制连接配置 (RRC Connection Reconfiguration ) 过程、 无线资源控 制连接释放 ( RRC Connection Release )过程, 无线资源配置( Radio Resource Configuration ) 过程, 终端 (User Equipment, 简称为 UE ) 转换无线资源连 接状态 ( Radio Resource Control Connected ) 过程等。 处于连接状态下的终端在发现无线链路层失败、 切换失败、 完整性保护 失败、 或者无线资源连接配置失败等情况下, 都会发起无线资源连接重建过 程, 其中, 重建过程大致如下: 在无线资源连接重建过程被触发后,终端会停止不需要的定时器(例如, T310计时器), 并启动无线资源连接过程中的定时器 T311 , 挂起除 SRB0之 外的 SRB , 重置 MAC , 并应用缺省的物理信道配置、 半持续调度配置、 以 及 MAC主配置, 随后进行小区重选。 终端在选择一个合适的小区后, 终端会停止定时器 T311 , 启动定时器
T301 , 然后向网络发送无线资源连接重建请求消息。 网络在收到终端的无线 资源连接重建请求消息后, 会向终端发送无线资源连接重建消息; 终端在收 到网络发出的无线资源连接重建消息后, 终端停止定时器 T301 , 重建分组数 据会聚十办议 ( Packet Data Conrergence Protocol, 简称为 PDCP ) 实体和无线 链路控制 (Radio Link Control, 简称为 RLC ) 实体, 重新使用之前被挂起的 SRB , 并进行安全相关的配置等一系列动作, 最后向网络发送无线资源建立 完成消息。 在上述的处理过程中, RRC Connection Re-establishment过程起着非常 重要的作用。 在该过程中, UE 在接收到网络侧的无线资源控制连接重建 消息 ( RRC Connection Reestablishment ) 后, 会才艮据该消息中的配置参数对 相应的参数进行配置。 在配置成功的情况下, UE会向网络侧发送 RRC重新 建立完成消息 ( RRC Connection Reestablishment Complete ), 但是, 对于 UE 在配置失败的情况下如何进行操作, 目前还没有相关的技术来规范或实现。 发明内容 考虑到相关技术中存在的在终端根据无线资源控制连接重建消息中的 配置参数配置失败后没有相应的处理方法的问题而提出本发明, 为此, 本发 明的主要目的在于提供一种改进的无线资源连接重建方案, 以解决相关技术 中存在的上述问题。 为了实现上述目的, 根据本发明的一个方面, 提供了一种无线资源连接 重建方法。 根据本发明的无线资源连接重建方法包括:终端在接收到网络侧发送的 无线资源控制连接重建消息后, 才艮据无线资源控制连接重建消息进行配置, 如果配置失败, 则进行本地资源释放和状态转移, 或者再次发起无线资源连 接重新建立过程。 为了实现上述目的, 才艮据本发明的另一方面, 提供了一种终端。 根据本发明的终端包括: 接收模块, 用于接收到网络侧发送的无线资源 控制连接重建消息; 配置模块, 用于根据接收模块接收的无线资源控制连接 重建消息进行配置; 处理模块, 用于在配置模块配置失败的情况下, 执行本 地资源释放和状态转移的处理, 或者再次发起无线资源连接重新建立过程。 借助于本发明的技术方案,通过在配置失败的情况下 UE执行本地资源 释放和状态转移, 或者再次发起无线资源重新建立过程的操作, 解决了相关 技术中在 UE才艮据无线资源控制连接重建消息中的配置参数配置失败时没有 相应的处理方法的问题, 使得 UE在配置成功和失败的情况下, 均能够进行 相应的处理。 本发明的其它特征和优点将在随后的说明书中阐述, 并且, 部分地从说 明书中变得显而易见, 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图说明 附图用来提供对本发明的进一步理解, 并且构成说明书的一部分, 与本 发明的实施例一起用于解释本发明, 并不构成对本发明的限制。 在附图中: 图 1是根据本发明实施例的无线资源连接重建方法的流程图; 图 2是根据本发明实施例的 RRC连接重建过程成功的信令流程图; 图 3是根据本发明实施例的 RRC连接发起后被网络拒绝的信令流程图; 图 4 是根据本发明实施例的连接发起后终端配置失败时终端释放本地 资源和进行状态转移的信令流程图; 图 5 是根据本发明实施例的连接发起后终端配置失败时终端再次发起 无线资源连接重新建立过程的信令流程图; 图 6是才艮据本发明实施例的终端的框图。 具体实施方式 功能相克述 目前, UE根据无 RRC连接重建消息中的配置参数时, 如果配置失败, 后续 UE的处理是未知的, 目前还没有对 UE进行何种处理进行规定, 针对 于此, 本发明在相关技术的基础上提供了一种改进的配置处理方案, 在发明 的技术方案中 , UE 在接收到 RRC 连接重建 ( RRC Connection Reestablishment ) 消息后, 口果不能使用 RRC Connection Reestablishment消 息中的参数完成某个或某几个参数的配置, 即, 不能完成全部参数的配置, 则 UE进行本地资源释放和状态的转移, 或者, UE再次发起无线资源连接重 新建立过程。 以下结合附图对本发明的优选实施例进行说明, 应当理解, 此处所描述 的 ύ选实施例仅用于说明和解释本发明, 并不用于限定本发明。 此外, 在不 背离所附权利要求阐明的精神和范围的情况下, 下述实施例以及实施例中得 各个细节可以进行各种组合。 方法实施例 根据本发明的实施例, 提供了一种无线资源连接重建方法, 本发明实施 例的应用场景为: 终端在无线资源连接重建的触发条件满足后, 选择合适的 小区, 并向所述小区发送无线资源连接重建请求。 图 1 是根据本发明实施例的无线资源连接重建方法的流程图, 如图 1 所示, 包括以下处理 (步骤 S102-步骤 S108 ): 步骤 S102, UE接收网络侧发送的 RRC连接重建消息, 并根据该消息 进行配置; 其中, UE 可以才艮据无线资源控制连接重建消息进行无线 载的 无线资源配置、 以及安全参数的配置。 需要说明的是, 上述的无线 载包括 但不限于: 信令无线 载。 上述安全参数(与安全相关的参数) 包括但不限 于: 完整性保护参数 (与完整性保护相关的参数)、 加密参数 (与加密相关的 参数)。 具体地, UE在进行上述配置时, 可以根据 RRC连接重建消息中携带的 配置参数对 UE 中的参数进行配置, 例如, UE 可以才艮据 RRC Connection Reestablishment消息中的无线资源配置参数 ( Radio Resource Configuration ) 对无线信令承载类型 1 ( Signalling Radio Bearer 1 , 简称为 SRB1 ) 进行重新 配置, 并在配置完成后继续使用 SRB1 ; 此夕卜, UE还可以才艮据 RRC连接重 建消息中的其他相应参数对与安全相关的参数进行更新 (配置), 并对底层进 行相关的完整性保护和加密进行配置。 但是, 如果 UE不能够根据携带的配 置参数对 UE中的参数进行配置, 则终端就可以确定配置失败。 需要说明的 是, 在实际的应用中, 在 RRC连接重建消息中会携带有多个参数, UE会根 据多个参数分别进行不同的配置, 在参数配置过程中, 如果有一项或者多项 参数没有配置成功, 则 UE就可以确定配置失败。 例如, 终端收到网络发送 的无线资源连接消息, 其中的 SRB id参数配置为 1 , 但终端却将 SRB id参 数配置为 2, 因此, 终端在 SRB id参数上配置失败, 即使在其他参数均配置 成功的情况下, 那么终端的配置还是失败的。 步骤 S 104 , UE在配置失败的情况下, 进行本地资源释放和状态转移。 需要说明的是, UE 在 RRC 连接重建过程中, 会占用无线资源, 但是, 在 UE 配置失败的情况下, 如果继续占用无线资源就会造成系统资源的浪费, 因此, UE需要将占用的无线资源释放(即, 终端释放所有无线资源), 包括 将无线链路控制实体、 以及分组数据会聚协议实体释放, 从而使得系统更加 优化。 此外, UE的在 RRC连接重建过程中存在两种状态: 连接状态和空闲 状态, 因此, UE 在配置失败的情况下, 需要还需要进行状态转移, 例如: 从连接状态转换为空闲状态。 步骤 S 106 , 终端在配置失败的情况下, 可以再次发起无线资源连接重 建过程。 在发起无线资源连接重建过程后, 终端会再次配置无线资源, 在实 际应用中, 终端可以选择性的设置一个计数器来设置再次发起的次数, 也可 以选择不设置计数器, 但是不设置计数器可能会导致死循环。 如果终端选择 设置计数器, 且终端在规定的次数内完成无线资源配置, 那么终端执行步骤 S 108 , 否则执行步骤 S 104。 步骤 S 108 , 终端在成功完成所有的无线资源配置后, 再进行相应的处 理, 例如: 执行对安全相关的参数的更新、 配置、 以及测量等操作。 最后, 向网络侧发送无线资源连接重建成功消息 ( RRC Connection Reestablishment Complet )。 下面, 对上述的技术方案进行详细的说明。 假设如下场景: 处于 RRC连接状态下的 UE在检测到无线链路层失败 后发起 RRC连接重建流程,但是,在收到网络发出的 RRC连接建立消息后, 不能对收到 RRC 连接重建消息中的无线资源配置参数 ( Radio Resource Configuration ) 中的某个参数(例 ^口, Physical Config Dedicated )正确的进行 相应的配置, RRC连接重建失败。 图 2是才艮据本发明实施例的 RRC连接重 建过程的信令流程图, 如图 2所示, 在上述场景下, 包括以下处理: 第一步, RRC 连接重新建立过程被触发, 触发的条件包括但不限于: UE检测到无线链路层失败、 UE切换失败、 UE完整性保护失败、 UE RRC 连接重配置失败等; 第二步, 当 RRC连接重新建立过程被触发后, 如果定时器 T300之前 被启动, 则 UE停止该定时器计时, 启动定时器 T311开始计时, 并执行以下 操作: 重置媒体接入控制 (Medium Access Control, 简称为 MAC )、 对缺省 的物理信道、 缺省的半持续调度 ( Semi Persistent Scheduling ) 进行配置、 对 缺省的 MAC进行主配置等, 在完成上述操作后, UE进行小区的选择; 第三步, 如果 UE选择了基于无线接入技术的小区, 那么 UE执行离开 无线资源连接状态 ( RRC— CONNECTED ) 的过程, 并设置相应释放原因值; 如果 UE选择了一个合适的演进的全球地面无线接入系统( Evolved Universal Terrestrial Radio Access , 简称为 E-UTRA )的小区,那么 UE停止定制器 T311 计时, 启动定时器 T301开始计时, 并设置 RRC连接重建请求消息的参数, 包括但不限于以下设置: 设置 UE的标识 (UE-Identity, 简称为 UE ID)、 RRC 连接重建的原因值 ( Reestablishment Cause ) 等, 在设置完成后, UE向网络 发送 RRC连接重新建立请求消息; 第四步, 网络收到 UE发送的连接重新建立请求消息后, 向该 UE发送 RRC连接重建消息 (RRC Connection Reestablishment ), 在 UE接^:到 RRC Connection Reestablishment消息后, 会才艮据该消息对相应的参数进行配置。 在配置时, 会出现两种情况, 即, 配置成功和配置失败, 下面, 分别对配置 成功和配置失败的情况进行说明。 配置成功 在 UE接收到 RRC连接重建消息后, UE停止定制器 T301计时, 重建 与 SRB1相关的分组数据会聚协议 ( Packet Data Conrergence Protocol, 简称 为 PDCP ) 实体和无线链路控制 ( Radio Link Control, 简称为 RLC ) 实体; 并才艮据无线资源控制连接重建消息进行无线 载的无线资源配置。 例如, UE 可以才艮据收到的无线资源配置参数 ( Radio Resource Configuration ) 对 SRB1 重新配置, 在配置完成后继续使用 SRB1 ; 此外, UE还可以才艮据无线资源控 制连接重建消息进行安全参数的配置。 例如, UE根据收到的 RRC连接重建 消息中的相应参数对与安全相关的配置进行更新, 并对底层进行相关的完整 性保护和力 p密进行配置; 在配置完成后, UE向网络侧发送 RRC重新建立完 成消息。 如果在此过程中, 如果 UE的定时器 T311、 和 /或定时器 T301超时、 或者在此过程中 UE选择的小区不再适用, UE执行离开 RRC连接状态的流 程, 并将释放原因值设置为 RRC Connection Failure。 图 3是根据本发明实施例的 RRC连接发起后被网络拒绝的信令流程图, 如图 3所示, 如果 UE收到网络侧发送的 RRC连接重新建立请求拒绝消息 ( RRC Connection Reestablishment Reject ),贝' J UE直接执行离开 RRC连接^ 态的流程, 并将释放原因值设置为 RRC Connection Failure, 配置失败 图 4 是根据本发明实施例的连接发起后终端配置失败后终端释放本地 资源并进行状态转移的信令流程图,如图 4所示, UE在收到网络发送的 RRC 连接重建消息后, 会根据该消息中的无线资源配置参数 ( Radio Resource Configuration ) 进行配置, 例如, 才艮据无线资源控制连接重建消息进行无线 载的无线资源配置、 以及安全参数的配置。 如果终端无法完成无线资源配 置参数(radioResourceConfiguration )中的部分或全部配置, 那么终端进行本 地资源释放和状态的转移, 并将释放原因值设置为无线资源连接失败( RRC connection failure )。 图 5 根据本发明实施例的连接发起后终端配置失败后终端再次发起无 线资源连接重建过程的信令流程图。 如图 5所示, 如果终端无法完成无线资 源配置参数 ( radioResourceConfiguration )中的部分或全部配置, 则终端还可 以选择设置一个计数器, 通过计数器设置终端再次发起无线资源连接重新建 立过程的预定次数, 例如, 将预定次数设置为 N, 并将 N设置成 3; 如果终 端在规定的次数 3内成功完成全部配置, 那么执行图 1中的步骤 S108 (向网 络侧发送无线资源连接重建成功消息), 如果还是配置失败则执行图 1 中的 S104 (进行本地资源释放和状态转移)。 通过上述处理, UE在配置失败的情况下, 也能够进行相应的处理, 并 且, 通过终端释放资源的处理, 可以使系统得到优化。 装置实施例 根据本发明的实施例, 提供了一种终端, 图 6是根据本发明实施例的终 端的框图, 如图 6所示, 该 UE 包括接收模块 60、 配置模块 62、 处理模块 64、调用模块 66。 下面, 进一步结合附图对上述 UE中的各个模块进行说明。 具体地, 在 UE中, 接收模块 60用于接收到网络侧发送的 RRC连接重 建消息; 配置模块 62连接至接收模块 60,用于根据接收模块 60接收的 RRC 连接重建消息进行配置; 调用模块 66连接至配置模块 62和处理模块 64, 用 于在配置模块 62配置失败时, 调用处理模块 64。 处理模块 64连接至调用模 块 66, 用于在调用模块 66调用的情况下, 进行本地资源释放和状态转移的 处理, 或者再次发起无线资源连接重新建立过程。 具体地, 配置模块 62在进行配置时, 可以根据 RRC连接重建消息中携 带的配置参数对 UE中的参数进行配置, 例如, 配置模块 62可以才艮据 RRC Connection Reestablishment 消息中的无线资源配置参数 ( Radio Resource Configuration )对 SRB1进行重新配置, 并在配置完成后继续使用 SRB1 ; 此 夕卜, 配置模块 62还可以才艮据 RRC Connection Reestablishment消息中的相应 参数对与安全相关的参数进行更新, 并对底层进行相关的完整性保护和加密 进行配置。 但是, 如果配置模块 62不能够根据携带的配置参数对 UE中的参 数进行配置, 则就可以确定配置失败。 需要说明的是, 在实际的应用中, 在 RRC Connection Reestablishment消息中会携带有多个参数, 配置模块 62会 根据多个参数分别进行不同的配置, 在配置过程中, 如果有一项或者多项参 数没有配置成功, 则就可以确定配置失败。 例如, 接收模块 60 收到网络发 送的无线资源连接消息, 其中的 SRB id参数配置为 1 , 但配置模块 62却将 SRB id参数配置为 2, 因此, 配置模块 62在 SRB id参数上配置失败, 即使 在其他参数均配置成功的情况下, 配置还是失败的。 需要说明的是, UE在 RRC连接重建过程中, 会占用系统的无线资源, 但是, 在 UE的配置模块 62配置失败的情况下, 如果继续占用无线资源就会 造成系统资源的浪费, 因此, 处理模块 64 需要将占用的无线资源释放, 从 而使得系统得到优化。此外, UE的在 RRC连接重建过程中会出现两种状态: 连接状态和空闲状态, 因此, 配置模块 62 在配置失败的情况下, 处理模块 64需要对终端执行状态转移的操作, 例如: 使终端从连接状态转换为空闲状 态。 此外, 配置模块 62在配置失败的情况下, 处理模块 64还可以再次发起 无线资源连接重建过程。 在发起无线资源连接重建过程后, 配置模块 62 会 再次配置无线资源, 在实际应用中, 配置模块 62 可以选择性的设置一个计 数器来设置再次发起的次数, 也可以选择不设置计数器, 但是不设置计数器 可能会导致死循环。 如果配置模块 62 选择设置计数器, 并在规定的次数内 完成无线资源配置, 那么终端就可以向网络侧发送无线资源连接重建成功消 息, 否则配置模块 62执行进行本地资源释放和状态转移的操作。 需要说明的是, 在不背离所附权利要求阐明的精神和范围的情况下, 可 以对上述各个模块进行各种改变以及组合。 综上所述, 借助于本发明的技术方案, 通过在配置失败的情况下 UE执 行本地资源释放和状态转移, 解决了相关技术中在 UE根据无线资源控制连 接重建消息中的配置参数配置失败时没有相应的处理方法的问题, 使得 UE 在配置成功和失败的情况下, 均能够进行相应的处理, 填补了相关技术中的 空白。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种无线资源连接重建方法, 终端在无线资源连接重建的触发条件满足 后, 选择合适的小区, 并向所述小区发送无线资源连接重建请求, 其特 征在于, 所述方法包括: 所述终端在接收到网络侧发送的无线资源控制 连接重建消息后, 才艮据所述无线资源控制连接重建消息进行配置, 如果 配置失败, 则进行本地资源释放和状态转移, 或者再次发起无线资源连 接重新建立过程。
2. 根据权利要求 1所述的方法, 其特征在于, 根据所述无线资源控制连接 重建消息进行配置包括: 才艮据所述无线资源控制连接重建消息进行无线 载的无线资源配置。
3. 才艮据权利要求 2所述的方法, 其特征在于, 所述无线承载包括: 信令无 线承载。
4. 根据权利要求 1所述的方法, 其特征在于, 根据所述无线资源控制连接 重建消息进行配置包括: 才艮据所述无线资源控制连接重建消息进行安全 参数的配置。
5. 根据权利要求 4所述的方法, 其特征在于, 所述安全参数包括: 完整性 保护参数、 加密参数。
6. 4艮据权利要求 1所述的方法, 其特征在于, 所述配置失败是指所述终端 不能够才艮据所述携带的配置参数对所述终端中的全部或者部分参数进行 配置。
7. 根据权利要求 1和 6中任一项所述的方法, 其特征在于, 在所述终端再 次发起所述无线资源连接重新建立过程的情况下, 所述方法还包括: 所述终端设置计数器,并通过所述计数器设置终端再次发起所述无 线资源连接重新建立过程的预定次数;
如果所述终端在所述预定次数内配置失败,则所述终端进行本地资 源释放和状态转移; 或者
所述终端禁止设置计数器; 如果所述终端配置失败,则反复发起所述无线资源连接重新建立过 程, 直到配置成功。
8. 根据权利要求 7所述的方法, 其特征在于, 所述终端进行本地资源释放 的处理包括: 所述终端释放所有无线资源, 其中, 所述所有无线资源包 括: 无线链路控制实体、 以及分组数据会聚协议实体。
9. 根据权利要求 7中所述的方法, 其特征在于, 所述终端进行状态转移的 处理包括: 所述终端由连接状态进入空闲状态。
10. 一种终端, 其特征在于, 包括:
接收模块, 用于接收到网络侧发送的无线资源控制连接重建消息; 配置模块,用于根据所述接收模块接收的所述无线资源控制连接重 建消息进行配置;
处理模块, 用于在所述配置模块配置失败的情况下, 执行本地资源 释放和状态转移的处理, 或者再次发起无线资源连接重新建立过程。
11. 根据权利要求 10所述的终端, 其特征在于, 所述配置模块具体用于: 根 据所述无线资源控制连接重建消息中携带的配置参数对终端中的参数进 行配置。
12. 根据权利要求 11所述的终端, 其特征在于, 所述终端进一步包括: 调用模块, 用于在所述配置模块配置失败时, 调用所述处理模块。
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