WO2018019052A1 - 一种重启时间校准ta定时器的方法、装置和存储介质 - Google Patents

一种重启时间校准ta定时器的方法、装置和存储介质 Download PDF

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WO2018019052A1
WO2018019052A1 PCT/CN2017/088674 CN2017088674W WO2018019052A1 WO 2018019052 A1 WO2018019052 A1 WO 2018019052A1 CN 2017088674 W CN2017088674 W CN 2017088674W WO 2018019052 A1 WO2018019052 A1 WO 2018019052A1
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timer
duration
new
restart
existing
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PCT/CN2017/088674
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English (en)
French (fr)
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冯小朋
韩虎贲
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深圳市中兴微电子技术有限公司
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Priority to RU2019104130A priority Critical patent/RU2707173C1/ru
Priority to BR112019001840-9A priority patent/BR112019001840A2/pt
Publication of WO2018019052A1 publication Critical patent/WO2018019052A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay

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  • the present invention relates to wireless communication technologies, and in particular, to a method, apparatus, and computer readable storage medium for restarting a Time Alignment Timer (which may be referred to as a TA timer).
  • a Time Alignment Timer which may be referred to as a TA timer.
  • the evolved base station eNB, eNodeB updates the duration of the TA timer in the user equipment (UE, User Equipment) in some scenarios but does not send the The restart command of the TA timer, so that the UE cannot start or restart the TA timer by using the restart command of the TA timer, and the process is abnormally caused by the inconsistency of the TA timer information in the subsequent interaction between the UE and the eNB. .
  • the eNB may carry the timeAlignmentTimerCommon in the system information SystemInformationBlockType2, so that the UE receives the random access response (RAR, Random Access Response) after the random access process, and parses the timeAlignmentTimerCommon; and configures the timeAlignmentTimerCommon as the TA timer Cell. -specific timeout period.
  • RAR Random Access Response
  • the eNB may perform an RRC connection setup message RRCConnectionSetup, an RRC connection reestablishment message RRCConnectionReestablishment, or an RRC connection reconfiguration message.
  • the RRCConnectionReconfiguration carries the RadioResourceConfigDedicated content; the mac-MainConfig cell in the RadioResourceConfigDedicated content carries the timeAlignmentTimerDedicated; the UE can resolve the message to obtain the timeAlignmentTimerDedicated and then configure the timeAlignmentTimerDedicated as the UE timer-specific timeout period. It can be understood that if the UE configures a UE-specific timeout period, the UE uses the timeout duration value, otherwise the UE uses a Cell-specific timeout duration value.
  • the eNB notifies the UE to update the TA timer duration to timeAlignmentTimerDedicated, but does not send a restart command of the TA timer to the UE. Since the UE needs to start or restart the TA timer according to the restart command of the TA timer, the timeAlignmentTimerDedicated that the eNB sends to the UE will not take effect at the UE, which may cause the UE to interact with the eNB due to the TA timing. The problem of processing anomalies caused by inconsistent information.
  • embodiments of the present invention are directed to a method, apparatus, and computer readable storage medium for restarting a TA timer.
  • an embodiment of the present invention provides a method for restarting a TA timer, including:
  • the UE's TA timer When the UE's TA timer is in the running state, it receives a new TA timer duration;
  • the restarting the TA timer according to the preset restart timer according to the existing TA timer duration and the new TA timer duration includes:
  • the watchdog timer is started, and the duration of the watchdog timer is set to be smaller than the new one.
  • the method further includes:
  • the monitoring timer is deleted and the TA timer is restarted.
  • the restarting the TA timer according to the preset restart timer according to the existing TA timer duration and the new TA timer duration includes:
  • the TA timer restart command is monitored
  • the TA timer fails to receive the TA timer restart command according to the timeout period of the existing TA timer, the TA timer is restarted.
  • the existing TA timer duration is carried in the RAR received by the UE in a random access procedure
  • the new TA timer duration is carried in the RRC connection setup message, the RRC connection reestablishment message, or the mac-MainConfig cell in the RRC connection reconfiguration message.
  • an embodiment of the present invention provides an apparatus for restarting a TA timer, including: a receiving module, a restarting module, and a setting module;
  • the receiving module is configured to receive a new TA timer duration when the TA timer of the UE is in a running state
  • the restarting module is configured to restart the TA timer according to the preset restart policy according to the new TA timer duration and the existing TA timer duration;
  • the setting module is configured to set a timeout period of the TA timer after the restart to the new TA timer duration.
  • the restart module is configured to:
  • the watchdog timer is started, and the duration of the watchdog timer is set to be smaller than the new one.
  • the receiving module When the watchdog timer expires, and the receiving module does not receive the TA timer restart command during the watchdog timer timing, the TA timer is restarted.
  • the restarting module is further configured to delete the monitoring timer and restart the TA timer when the receiving module receives the TA timer restart command during the monitoring timer timing .
  • the restart module is configured to:
  • the TA timer restart command is monitored
  • the TA timer expires according to the existing TA timer duration
  • the receiving module does not receive the TA timer restart command
  • the TA timer is restarted.
  • the existing TA timer duration is carried in the RAR received by the receiving module
  • the new TA timer duration is carried in the RRC connection setup message, the RRC connection reestablishment message, or the mac-MainConfig cell in the RRC connection reconfiguration message.
  • an embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the foregoing method.
  • the embodiment of the present invention provides a method, a device, and a computer readable storage medium for restarting a TA timer. After receiving a new TA timer, the UE restarts the TA timer according to a preset restart policy. It is possible to avoid the problem of abnormal processing caused by the inconsistency of the information of the TA timer during the interaction between the UE and the eNB.
  • FIG. 1 is a schematic flowchart of a method for restarting a TA timer according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a specific implementation process of a method for restarting a TA timer according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of another implementation method of a method for restarting a TA timer according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • a method for restarting a TA timer according to an embodiment of the present invention is provided.
  • the method is applied to a UE side, and includes:
  • S101 Receive a new TA timer duration when the TA timer of the UE is in a running state
  • S102 The UE restarts the TA timer according to the preset restart policy according to the new TA timer duration and the existing TA timer duration.
  • S103 The UE sets the timeout duration of the TA timer after the restart to the new TA timer duration.
  • the existing TA timer duration is carried in the RAR received by the UE in the random access process, and may be the timeAlignmentTimerCommon carried in the system information SystemInformationBlockType2;
  • the new TA timer duration is carried in the RRC connection setup message, the RRC connection reestablishment message, or the mac-MainConfig cell in the RRC connection reconfiguration message; specifically, the timeAlignmentTimerDedicated carried by the mac-MainConfig cell in the RadioResourceConfigDedicated .
  • the value of the TA timer duration may be as follows:
  • the eNB is updating the TA timing.
  • the time length of the device is timeAlignmentTimerDedicated, and the UE is considered to be using the new TA timer duration timeAlignmentTimerDedicated.
  • the new TA timer duration timeAlignmentTimerDedicated is not used, resulting in the eNB having no data.
  • the service considers that the UE should be out of step, but the UE's TA timer does not time out, so the UE does not determine the out-of-synchronization state, so it affects the UE power saving and other functions.
  • the eNB will consider that the UE should not have the uplink out-of-synchronization caused by the TA timer timeout after updating the TA timer for the timeAlignmentTimerDedicated, but the UE does not receive the TA.
  • the timer restart command is still using the existing TA timer duration timeAlignmentTimerCommon. Therefore, after the existing TA timer expires, the UE initiates random access, which causes the eNB to handle abnormalities, current interruptions, and the like.
  • the technical solution shown in FIG. 1 can solve the above problem in a targeted manner.
  • the UE After receiving the new TA timer, the UE restarts the TA timer according to the preset restart policy. The problem of abnormal processing caused by the inconsistency of the information of the TA timer during the interaction between the UE and the eNB is avoided.
  • the present embodiment proposes two specific example solutions based on the technical solution shown in FIG. 1 to solve the problems of the above two aspects.
  • the UE restarts the TA timer according to the preset TA timer duration and the new TA timer duration according to the preset restart policy, and specifically includes:
  • the UE starts a watchdog timer, and sets the duration of the watchdog timer to be smaller than the new one.
  • TA timer duration When the existing TA timer duration is an infinite value and the new TA timer duration is a finite value, the UE starts a watchdog timer, and sets the duration of the watchdog timer to be smaller than the new one.
  • the UE restarts the TA timer.
  • the example may further include: when the UE receives the TA timer restart command during the monitoring timer timing, the UE deletes the monitoring timer and restarts the TA timing. Device.
  • TATimerNew-10) milliseconds Ms is the duration of TacMonitorTimer; understandably, the duration of TacMonitorTimer can be set to a value slightly smaller than TATimerNew. This implementation is illustrated by (TATimerNew-10) milliseconds.
  • the TA timer is used to restart the TA timer according to the existing protocol, and the watchdog timer TacMonitorTimer is deleted;
  • the UE If the UE does not receive the TA timer restart command sent by the eNB after the timeout of the TacMonitorTimer, the UE considers that the eNB misses the TA timer restart command. At this time, the UE can restart the TA timer by using TATimerNew, and the subsequent process is processed according to the protocol.
  • the UE restarts the TA timer according to the preset TA timer duration and the new TA timer duration according to the preset restart policy, which specifically includes:
  • the UE monitors the TA timer restart command
  • the UE restarts the TA timer.
  • the UE may keep the TA timer running according to TATimerOld, and wait for the TA timer restart command that may be sent by the eNB.
  • the TA timer restarts the TA timer according to the existing protocol.
  • the UE does not consider the out-of-synchronization.
  • the TA timer can be used to restart the TA timer.
  • the eNB When neither TATimerOld nor TATimerNew is infinity, the eNB sends a TA timer restart command to the UE, and the subsequent process is still processed according to the existing protocol.
  • the method for restarting the TA timer is provided by the UE. After receiving the new TA timer, the UE restarts the TA timer according to the preset restart policy, so as to avoid the interaction between the UE and the eNB. The problem of abnormal processing caused by the inconsistency of the information of the TA timer.
  • the present embodiment provides two specific implementation examples.
  • a specific implementation process of a method for restarting a TA timer according to an embodiment of the present invention, which is applied to a UE may include:
  • S200 The UE receives a new TA timer, and proceeds to S201.
  • S201 The UE determines whether the TA timer is running. If not, the UE is in an out-of-synchronization state, and the process goes to S213; otherwise, the process goes to S202.
  • S202 The UE determines whether the TATimerOld is an infinite value. If not, the process goes to S203; otherwise, the process goes to S204.
  • S203 The UE determines whether the TATimerNew is an infinite value. If not, the process goes to S213 to process according to the protocol flow; otherwise, the process goes to S206.
  • S204 The UE determines whether the TATimerNew is an infinite value. If yes, the process goes to S213 to process according to the protocol flow; otherwise, the process goes to S205.
  • S205 The UE starts the monitoring timer TacMonitorTimer by using (TATimerNew-10) ms, sets the flag bFromInfinity to be valid, and goes to S207.
  • S207 The UE receives the TA timer restart command before the monitoring timer expires. If yes, the process goes to S212; otherwise, the process goes to S208.
  • S208 The UE determines whether bFromInfinity is valid. If it is valid, go to S212; otherwise Go to S209.
  • S209 The UE determines whether bToInfinity is valid, if it is valid, goes to S211; if both bToInfinity and bFromInfinity are invalid, it goes to S210;
  • TATimerNew is infinity at this time.
  • S212 The UE clears the flag bFromInfinity and the flag bToInfinity, and restarts the TA timer according to the duration of the TATimerNew, and the process ends.
  • the TA timer restart command sent by the base station side may be omitted, but the new TA timer duration is directly used when the TA timer changes from infinite to finite length or from finite length to infinite length. Restart the TA timer to solve the problem.
  • the second embodiment For detailed procedures, refer to the second embodiment.
  • FIG. 3 a specific implementation process of a method for restarting a TA timer according to an embodiment of the present invention is shown.
  • S300 The UE receives a new TA timer, and proceeds to S301.
  • S301 The UE determines whether the TA timer is running. If not, the process goes to S306 to process according to the protocol flow; otherwise, the process goes to S302.
  • S302 The UE determines whether the TATimerOld is an infinite value. If not, the process goes to S303; otherwise, the process goes to S304.
  • S303 The UE determines whether the TATimerNew is an infinite value. If not, the process goes to S306; otherwise, the process goes to S305.
  • S304 The UE determines whether the TATimerNew is an infinite value. If yes, the process goes to S306; otherwise, the process goes to S305.
  • S305 The UE restarts the TA timer by using TATimerNew, and the process ends.
  • the method for restarting the TA timer in Embodiment 1 is described in detail by using two specific embodiments.
  • the UE After receiving the new TA timer, the UE restarts the TA timer to avoid the problem of abnormal processing caused by the inconsistency of the TA timer information during the interaction between the UE and the eNB.
  • an apparatus 40 for restarting a TA timer which is disposed in a UE, and the apparatus 40 includes: a TA timer 401, and a receiving module. 402, a restart module 403 and a setting module 404; wherein
  • the receiving module 402 is configured to receive a new TA timer duration when the TA timer 401 of the UE is in an operating state;
  • the restarting module 403 is configured to restart the TA timer 401 according to the preset restart policy according to the new TA timer duration and the existing TA timer duration;
  • the setting module 404 is configured to set a timeout period of the TA timer 401 after the restart to the new TA timer duration.
  • the restart module 403 is configured to:
  • the watchdog timer is started, and the duration of the watchdog timer is set to be smaller than the new TA timing. Length of time;
  • the receiving module 402 When the watchdog timer expires, and the receiving module 402 does not receive the TA timer restart command during the watchdog timer timing, the TA timer 401 is restarted.
  • the restarting module 403 is further configured to delete the monitoring timer and restart the TA when the receiving module 402 receives the TA timer restart command during the monitoring timer timing. Timer 401.
  • the restart module 403 is configured to:
  • the TA timer restart command is monitored
  • the TA timer 401 restarts the TA timer 401 when the TA module 401 does not receive the TA timer restart command according to the timeout period of the existing TA timer duration.
  • the existing TA timer duration is carried in the RAR received by the receiving module 402;
  • the new TA timer duration is carried in the RRC connection setup message, the RRC connection reestablishment message, or the mac-MainConfig cell in the RRC connection reconfiguration message.
  • the restart module 403 and the setup module 404 can be implemented by a processor in the device 40 that restarts the TA timer, and the receiving module 402 can be implemented by a network interface in the device 40 that restarts the TA timer.
  • the apparatus for restarting the TA timer provided by the embodiment, after receiving the new TA timer, restarts the TA timer according to the preset restart policy, so as to avoid the TA timing during the interaction between the UE and the eNB.
  • the problem of processing anomalies caused by inconsistent information is a problem of processing anomalies caused by inconsistent information.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • an embodiment of the present invention provides a computer readable storage medium, where a computer program is stored, and when the computer program is executed by the processor, the following:
  • the UE's TA timer When the UE's TA timer is in the running state, it receives a new TA timer duration;
  • the watchdog timer is started, and the duration of the watchdog timer is set to be smaller than the new TA timing. Length of time;
  • the monitoring timer is deleted and the TA timer is restarted.
  • the TA timer restart command is monitored
  • the TA timer is restarted when the TA timer restart command is not received.
  • the existing TA timer duration is carried in the RAR received by the UE in a random access procedure
  • the new TA timer duration is carried in the RRC connection setup message, the RRC connection reestablishment message, or the mac-MainConfig cell in the RRC connection reconfiguration message.
  • the solution provided by the embodiment of the present invention can prevent the TA timer from being inconsistent during the interaction between the UE and the eNB by restarting the TA timer according to the preset restart policy after receiving the new TA timer.
  • the resulting problem of handling exceptions can prevent the TA timer from being inconsistent during the interaction between the UE and the eNB by restarting the TA timer according to the preset restart policy after receiving the new TA timer.

Abstract

本发明实施例公开了一种重启时间校准(TA)定时器的方法、装置和计算机可读存储介质。其中方法包括：UE的TA定时器处于运行状态时，接收新的TA定时器时长；根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；将重启后TA定时器的超时时长设置为所述新的TA定时器时长。

Description

一种重启时间校准TA定时器的方法、装置和存储介质
相关申请的交叉引用
本申请基于申请号为201610618723.7、申请日为2016年07月29日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及无线通信技术，尤其涉及一种重启时间校准定时器(Time Alignment Timer)(可以称为TA定时器)的方法、装置和计算机可读存储介质。
背景技术
当前长期演进(LTE，Long Term Evolution)制式的网络结构中，演进型基站(eNB，eNodeB)会在某些场景中更新用户设备(UE，User Equipment)中的TA定时器的时长但是未发送针对TA定时器的重启命令，从而会出现UE无法通过TA定时器的重启命令对TA定时器进行启动或者重启，导致UE与eNB在后续的交互过程中由于TA定时器信息的不一致所引发流程处理异常。
例如，eNB可以在系统信息SystemInformationBlockType2中携带有timeAlignmentTimerCommon，从而使得UE在随机接入过程中收到随机接入响应(RAR，Random Access Response)后，解析得到timeAlignmentTimerCommon；并将timeAlignmentTimerCommon配置为TA定时器Cell-specific的超时时长。
在无线资源控制(RRC，Radio Resource Control)的连接建立过程中，eNB可以在RRC连接建立消息RRCConnectionSetup、RRC连接重建消息RRCConnectionReestablishment、或者RRC连接重配置消息 RRCConnectionReconfiguration中携带有RadioResourceConfigDedicated内容；而RadioResourceConfigDedicated内容中的mac-MainConfig信元会携带timeAlignmentTimerDedicated；UE可以通过对上述消息进行解析得到timeAlignmentTimerDedicated之后，将timeAlignmentTimerDedicated配置为TA定时器UE-specific的超时时长。可以理解地，如果UE配置了UE-specific的超时时长，则UE使用该超时时长值，否则UE使用Cell-specific的超时时长值。
在timeAlignmentTimerCommon和timeAlignmentTimerDedicated两者不同且其中一个的值是无限长的情况下，eNB通知UE更新TA定时器时长为timeAlignmentTimerDedicated，但并不会向UE发送TA定时器的重启命令。由于UE需要依赖TA定时器的重启命令对TA定时器进行启动或者重启，这就会导致eNB向UE下发的timeAlignmentTimerDedicated不会在UE处生效，这样会引发UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。
发明内容
为解决上述技术问题，本发明实施例期望提供一种重启TA定时器的方法、装置和计算机可读存储介质。
本发明的技术方案是这样实现的：
第一方面，本发明实施例提供了一种重启TA定时器的方法，包括：
UE的TA定时器处于运行状态时，接收新的TA定时器时长；
根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；
将重启后TA定时器的超时时长设置为所述新的TA定时器时长。
在上述方案中，所述根据已有的TA定时器时长以及所述新的TA定时器时长按照预设的重启策略重启TA定时器，包括：
当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，启动监视定时器，并将所述监视定时器的时长设置为小于所述新 的TA定时器时长；
当所述监视定时器超时，且在所述监视定时器计时过程中没有收到TA定时器重启命令时，重启所述TA定时器。
在上述方案中，所述方法还包括：
在所述监视定时器计时过程中收到所述TA定时器重启命令时，删除所述监视定时器并重启所述TA定时器。
在上述方案中，所述根据已有的TA定时器时长以及所述新的TA定时器时长按照预设的重启策略重启TA定时器，包括：
当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，监听TA定时器重启命令；
当所述TA定时器根据所述已有的TA定时器时长计时超时的过程中，没有收到TA定时器重启命令时，重启所述TA定时器。
在上述方案中，所述已有的TA定时器时长承载于所述UE在随机接入过程中接收到的RAR中；
所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中。
第二方面，本发明实施例提供了一种重启TA定时器的装置，包括：接收模块、重启模块和设置模块；其中，
所述接收模块，配置为UE的TA定时器处于运行状态时，接收新的TA定时器时长；
所述重启模块，配置为根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；
所述设置模块，配置为将重启后TA定时器的超时时长设置为所述新的TA定时器时长。
在上述方案中，所述重启模块，配置为：
当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，启动监视定时器，并将所述监视定时器的时长设置为小于所述新 的TA定时器时长；
当所述监视定时器超时，且所述接收模块在所述监视定时器计时过程中没有收到TA定时器重启命令时，重启所述TA定时器。
在上述方案中，所述重启模块，还配置为在所述监视定时器计时过程中所述接收模块接收到所述TA定时器重启命令时，删除所述监视定时器并重启所述TA定时器。
在上述方案中，所述重启模块，配置为：
当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，监听TA定时器重启命令；
当所述TA定时器根据所述已有的TA定时器时长计时超时的过程中，所述接收模块没有收到TA定时器重启命令时，重启所述TA定时器。
在上述方案中，所述已有的TA定时器时长承载于所述接收模块接收到的RAR中；
所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中。
第三方面，本发明实施例提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述方法的步骤。
本发明实施例提供了一种重启TA定时器的方法、装置和计算机可读存储介质，通过UE在接收到新的TA定时器时长后，按照预设的重启策略自行对TA定时器进行重启，能够避免UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。
附图说明
图1为本发明实施例提供的一种重启TA定时器的方法流程示意图；
图2为本发明实施例提供的一种重启TA定时器的方法具体实现流程示意图；
图3为本发明实施例提供的另一种重启TA定时器的方法具体实现流程示意图；
图4为本发明实施例提供的一种UE结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
实施例一
参见图1，其示出了本发明实施例提供的一种重启TA定时器的方法，该方法应用于UE侧，包括：
S101：UE的TA定时器处于运行状态时，接收新的TA定时器时长；
S102：UE根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；
S103：UE将重启后TA定时器的超时时长设置为所述新的TA定时器时长。
示例性地，在本技术方案中，所述已有的TA定时器时长承载于所述UE在随机接入过程中接收到的RAR中，具体可以为系统信息SystemInformationBlockType2中所携带的timeAlignmentTimerCommon；
所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中；具体可以为RadioResourceConfigDedicated中的mac-MainConfig信元所携带的timeAlignmentTimerDedicated。
在本发明实施例中，TA定时器时长的取值可以如下伪代码所示：
TimeAlignmentTimer::＝ENUMERATED{
sf500,sf750,sf1280,sf1920,sf2560,sf5120,sf10240,infinity}。
可以理解地，infinity表示无限值，除infinity以外的其他取值均为有限值。
需要说明的是，对于背景技术中所描述的TA定时器的重启方法，一方面，当timeAlignmentTimerCommon值是infinity，但timeAlignmentTimerDedicated不是infinity的情况下，eNB在更新TA定时 器时长为timeAlignmentTimerDedicated后会认为UE使用的是新的TA定时器时长timeAlignmentTimerDedicated，但是UE由于没有收到TA定时器重启命令，所以就不会使用新的TA定时器时长timeAlignmentTimerDedicated，从而导致eNB在没有数据业务时认为UE应该失步了，但是UE的TA定时器未超时，因此UE不会判断出失步状态，所以对UE省电等功能造成影响。
另一方面，当timeAlignmentTimerCommon值不是infinity，但timeAlignmentTimerDedicated是infinity的情况，eNB在更新TA定时器时长为timeAlignmentTimerDedicated后会认为UE不应该出现TA定时器超时导致的上行失步，但是UE由于未收到TA定时器重启命令，仍然在使用已有的TA定时器时长timeAlignmentTimerCommon，所以，在已有的TA定时器超时后，UE会发起随机接入，从而导致eNB处理异常、断流等现象出现。
针对上述说明的问题，图1所示的技术方案能够针对上述问题进行针对性的解决，通过UE在接收到新的TA定时器时长后，按照预设的重启策略自行对TA定时器进行重启，避免UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。
针对上述说明中两个方面的问题，本实施例基于图1所示技术方案对应提出了两个具体的示例方案来解决上述两个方面的问题。
示例性地，针对背景技术中第一方面的问题，所述UE根据已有的TA定时器时长以及所述新的TA定时器时长按照预设的重启策略重启TA定时器，具体包括：
当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，所述UE启动监视定时器，并将所述监视定时器的时长设置为小于所述新的TA定时器时长；
当所述监视定时器超时，且所述UE在所述监视定时器计时过程中没有收到TA定时器重启命令时，所述UE重启所述TA定时器。
在一实施例中，上述示例还可以包括：所述UE在所述监视定时器计时过程中收到所述TA定时器重启命令时，所述UE删除所述监视定时器并重启所述TA定时器。
上述示例的具体实现过程中，如果已有的TA定时器时长TATimerOld为infinity而新的TA定时器时长TATimerNew不为infinity，则可以启动一个新的监视定时器TacMonitorTimer，并将(TATimerNew-10)毫秒ms作为TacMonitorTimer的时长；可以理解地，TacMonitorTimer的时长可以设置为一个略小于TATimerNew的数值，本具体实现以(TATimerNew-10)毫秒为例进行说明。
如果UE在TacMonitorTimer超时前收到了eNB发送的TA定时器重启命令，就按照现有协议使用TATimerNew重启TA定时器，同时删除监视定时器TacMonitorTimer；
如果UE在TacMonitorTimer超时后也没有收到eNB发送的TA定时器重启命令，UE就认为eNB漏发TA定时器重启命令，此时，UE可以使用TATimerNew重启TA定时器，后续流程按照协议规定处理。
示例性地，针对背景技术中第二方面的问题，所述UE根据已有的TA定时器时长以及所述新的TA定时器时长按照预设的重启策略重启TA定时器，具体包括：
当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，所述UE监听TA定时器重启命令；
当所述TA定时器根据所述已有的TA定时器时长计时超时的过程中，没有收到TA定时器重启命令时，所述UE重启所述TA定时器。
上述示例的具体实现过程中，如果TATimerOld不为infinity而TATimerNew为infinity，那么UE可以按照TATimerOld保持TA定时器运行，等待eNB可能下发的TA定时器重启命令。
如果TA定时器运行过程收到eNB下发的TA定时器重启命令，就按照现有协议使用TATimerNew重启TA定时器；
如果TA定时器超时也没有收到eNB下发的TA定时器重启命令，UE也不认为失步，可以使用TATimerNew对TA定时器进行重启。
可以理解地，当TATimerOld和TATimerNew均为infinity时，不会触发UE失步，按照现有的协议流程处理；
当TATimerOld和TATimerNew都不是infinity时，eNB会向UE下发TA定时器重启命令，后续过程仍然按照现有协议处理。
本实施例提供的一种重启TA定时器的方法，通过UE在接收到新的TA定时器时长后，按照预设的重启策略自行对TA定时器进行重启，避免UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。
实施例二
基于前述实施例相同的技术构思，本实施例提供了两种具体实现示例。
具体实施例一
参见图2，其示出了本发明实施例提供的一种重启TA定时器的方法具体实现流程，应用于UE，可以包括：
S200：UE收到新的TA定时器，进入S201。
S201：UE判断TA定时器是否在运行，如果没有，则UE处于失步状态，转至S213；否则转至S202。
S202：UE判断TATimerOld是否是无限值，如果不是，则转至S203；否则转至S204。
S203：UE判断TATimerNew是否是无限值，如果不是，则转至S213按照协议流程处理；否则转至S206。
S204：UE判断TATimerNew是否是无限值，如果是，则转至S213按照协议流程处理；否则转至S205。
S205：UE使用(TATimerNew-10)ms启动监视定时器TacMonitorTimer，并设置标记bFromInfinity有效，并转至S207。
S206：UE设置标记bToInfinity有效，等待TA定时器超时或者eNB下发TA定时器重启命令，并转至S207。
S207：UE在监视定时器超时前是否收到TA定时器重启命令，如果是则转至S212；否则转至S208。
S208：UE判断bFromInfinity是否有效，如果有效，转至S212；否则 转至S209。
S209：UE判断bToInfinity是否有效，如果有效，转至S211；如果bToInfinity和bFromInfinity都无效就进入S210；
可以理解地，不存在bToInfinity和bFromInfinity同时有效的情况。
S210：定时器超时按照UE失步处理，流程结束。
S211：UE清除bToInfinity标记，按照TATimerNew重启TA定时器，流程结束。
可以理解地，此时TATimerNew为infinity。
S212：UE清除标记bFromInfinity和标记bToInfinity，按照TATimerNew的时长重启TA定时器，流程结束。
S213：按照协议流程处理后，流程结束。
需要说明的是，具体实施例一提出了一种比较全面的解决基站侧不下发TA定时器重启命令的方法具体流程，考虑了等待处理基站侧可能下发TA定时器重启命令的情况。在具体实施过程中，可以不用考虑基站侧下发的TA定时器重启命令，而是在TA定时器从无限长到有限长或者从有限长到无限长变化时，直接使用新的TA定时器时长重启TA定时器即可解决遇到的问题。详细过程可以参见具体实施例二。
具体实施例二
参见图3，其示出了本发明实施例提供的另一种重启TA定时器的方法具体实现流程，应用于UE，可以包括：
S300：UE收到新的TA定时器，进入S301。
S301：UE判断TA定时器是否在运行，如果没有，则转至S306按照协议流程处理；否则转至S302。
S302：UE判断TATimerOld是否是无限值，如果不是，则转至S303；否则转至S304。
S303：UE判断TATimerNew是否是无限值，如果不是，则转至S306；否则转至S305。
S304：UE判断TATimerNew是否是无限值，如果是，则转至S306；否则转至S305。
S305：UE使用TATimerNew重启TA定时器，流程结束。
S306：按照协议流程处理，流程结束。
本实施例通过两个具体实施例对实施例一中的重启TA定时器的方法进行了详细阐述。通过UE在接收到新的TA定时器时长后，自行对TA定时器进行重启，避免UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。
实施例三
基于前述实施例相同的技术构思，参见图4，其示出了本发明实施例提供的一种重启TA定时器的装置40，设置在UE，所述装置40包括：TA定时器401、接收模块402、重启模块403和设置模块404；其中，
所述接收模块402，配置为UE的TA定时器401处于运行状态时，接收新的TA定时器时长；
所述重启模块403，配置为根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器401；
所述设置模块404，配置为将重启后TA定时器401的超时时长设置为所述新的TA定时器时长。
在上述方案中，所述重启模块403，配置为：
当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，启动监视定时器，并将所述监视定时器的时长设置为小于所述新的TA定时器时长；
当所述监视定时器超时，且所述接收模块402在所述监视定时器计时过程中没有收到TA定时器重启命令时，重启所述TA定时器401。
在上述方案中，所述重启模块403，还配置为在所述监视定时器计时过程中所述接收模块402接收到所述TA定时器重启命令时，删除所述监视定时器并重启所述TA定时器401。
在上述方案中，所述重启模块403，配置为：
当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，监听TA定时器重启命令；
当所述TA定时器401根据所述已有的TA定时器时长计时超时的过程中，所述接收模块402没有收到TA定时器重启命令时，重启所述TA定时器401。
在上述方案中，所述已有的TA定时器时长承载于所述接收模块402接收到的RAR中；
所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中。
实际应用时，所述重启模块403和设置模块404可由重启TA定时器的装置40中的处理器实现，所述接收模块402可由重启TA定时器的装置40中的网络接口实现。
本实施例提供的一种重启TA定时器的装置，在接收到新的TA定时器时长后，按照预设的重启策略自行对TA定时器进行重启，避免UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
基于此，本发明实施例提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时，执行：
UE的TA定时器处于运行状态时，接收新的TA定时器时长；
根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；
将重启后TA定时器的超时时长设置为所述新的TA定时器时长。
在一实施例中，所述计算机程序被处理器运行时，执行：
当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，启动监视定时器，并将所述监视定时器的时长设置为小于所述新的TA定时器时长；
当所述监视定时器超时，且在所述监视定时器计时过程中没有收到TA定时器重启命令时，重启所述TA定时器。
在一实施例中，所述计算机程序被处理器运行时，还执行：
在所述监视定时器计时过程中收到所述TA定时器重启命令时，删除所述监视定时器并重启所述TA定时器。
在一实施例中，所述计算机程序被处理器运行时，执行：
当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，监听TA定时器重启命令；
当所述TA定时器根据所述已有的TA定时器时长计时超时的过程中， 没有收到TA定时器重启命令时，重启所述TA定时器。
在一实施例中，所述已有的TA定时器时长承载于所述UE在随机接入过程中接收到的RAR中；
所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中
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。
工业实用性
本发明实施例提供的方案，通过在接收到新的TA定时器时长后，按照预设的重启策略自行对TA定时器进行重启，能够避免UE与eNB在交互过程中由于TA定时器的信息不一致所产生的处理异常的问题。

Claims (11)

  1. 一种重启时间校准TA定时器的方法，所述方法包括：
    用户设备UE的TA定时器处于运行状态时，接收新的TA定时器时长；
    根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；
    将重启后TA定时器的超时时长设置为所述新的TA定时器时长。
  2. 根据权利要求1所述的方法，其中，所述根据已有的TA定时器时长以及所述新的TA定时器时长按照预设的重启策略重启TA定时器，包括：
    当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，启动监视定时器，并将所述监视定时器的时长设置为小于所述新的TA定时器时长；
    当所述监视定时器超时，且在所述监视定时器计时过程中没有收到TA定时器重启命令时，重启所述TA定时器。
  3. 根据权利要求2所述的方法，其中，所述方法还包括：
    在所述监视定时器计时过程中收到所述TA定时器重启命令时，删除所述监视定时器并重启所述TA定时器。
  4. 根据权利要求1所述的方法，其中，所述根据已有的TA定时器时长以及所述新的TA定时器时长按照预设的重启策略重启TA定时器，包括：
    当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，监听TA定时器重启命令；
    当所述TA定时器根据所述已有的TA定时器时长计时超时的过程中，没有收到TA定时器重启命令时，重启所述TA定时器。
  5. 根据权利要求1所述的方法，其中，所述已有的TA定时器时长承载于所述UE在随机接入过程中接收到的随机接入响应RAR中；
    所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中。
  6. 一种重启时间校准TA定时器的装置，所述装置包括：接收模块、重启模块和设置模块；其中，
    所述接收模块，配置为UE的TA定时器处于运行状态时，接收新的TA定时器时长；
    所述重启模块，配置为根据所述新的TA定时器时长以及已有的TA定时器时长按照预设的重启策略重启TA定时器；
    所述设置模块，配置为将重启后TA定时器的超时时长设置为所述新的TA定时器时长。
  7. 根据权利要求6所述的UE，其中，所述重启模块，配置为：
    当所述已有的TA定时器时长为无限值且所述新的TA定时器时长为有限值时，启动监视定时器，并将所述监视定时器的时长设置为小于所述新的TA定时器时长；
    当所述监视定时器超时，且所述接收模块在所述监视定时器计时过程中没有收到TA定时器重启命令时，重启所述TA定时器。
  8. 根据权利要求7所述的UE，其中，所述重启模块，还配置为在所述监视定时器计时过程中所述接收模块接收到所述TA定时器重启命令时，删除所述监视定时器并重启所述TA定时器。
  9. 根据权利要求6所述的UE，其中，所述重启模块，配置为：
    当所述已有的TA定时器时长为有限值且所述新的TA定时器时长为无限值时，监听TA定时器重启命令；
    当所述TA定时器根据所述已有的TA定时器时长计时超时的过程中，所述接收模块没有收到TA定时器重启命令时，重启所述TA定时器。
  10. 根据权利要求6所述的UE，其中，所述已有的TA定时器时长承载于所述接收模块接收到的随机接入响应RAR中；
    所述新的TA定时器时长承载于RRC连接建立消息、RRC连接重建消息、或者RRC连接重配置消息中的mac-MainConfig信元中。
  11. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至5任一项所述方法的步骤。
PCT/CN2017/088674 2016-07-29 2017-06-16 一种重启时间校准ta定时器的方法、装置和存储介质 WO2018019052A1 (zh)

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