WO2018223977A1 - 一种可重同步触发方法及基站 - Google Patents

一种可重同步触发方法及基站 Download PDF

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Publication number
WO2018223977A1
WO2018223977A1 PCT/CN2018/090035 CN2018090035W WO2018223977A1 WO 2018223977 A1 WO2018223977 A1 WO 2018223977A1 CN 2018090035 W CN2018090035 W CN 2018090035W WO 2018223977 A1 WO2018223977 A1 WO 2018223977A1
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Prior art keywords
resynchronization
feedback signal
base station
received
time range
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PCT/CN2018/090035
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English (en)
French (fr)
Inventor
王旭
陈召娣
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华为技术有限公司
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Priority to EP18812864.9A priority Critical patent/EP3624381A4/en
Priority to JP2019567585A priority patent/JP6980038B2/ja
Publication of WO2018223977A1 publication Critical patent/WO2018223977A1/zh
Priority to US16/706,375 priority patent/US11246109B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

Definitions

  • the present application relates to the field of communications, and in particular, to a resynchronization triggering method and a base station.
  • CA Carrier Aggregation
  • the base station when the MTA is enabled, the base station needs to delay 30 milliseconds after the uplink secondary carrier cell (SCC) is activated, and then triggers resynchronization.
  • SCC uplink secondary carrier cell
  • the base station triggers resynchronization for too long, which will cause the uplink throughput to be damaged.
  • the present application provides a resynchronization triggering method and a base station, and aims to solve the problem of impaired uplink throughput caused by the existing resynchronization triggering method.
  • the first aspect of the present application provides a resynchronization triggering method, including: the base station triggers resynchronization immediately after the uplink secondary carrier cell SCC is activated, and the triggering time of the resynchronization is T1.
  • the base station detects whether a resynchronization feedback signal is received within a preset time range, and if not, triggers resynchronization, the starting time of the preset time range is the T1, and the termination time is T2, T2 and The difference of T1 is less than or equal to 30 milliseconds. Since the base station triggers resynchronization immediately after the uplink secondary carrier cell SCC is activated, the lag time for triggering resynchronization can be shortened, thereby improving the uplink throughput. Moreover, if the resynchronization feedback signal is not received within the preset time range, the base station triggers resynchronization again. Therefore, compatibility with different terminals can be achieved, and the terminal can correctly demodulate the physical downlink control channel command.
  • a second aspect of the present application provides a base station, including: a processor, configured to trigger resynchronization immediately after an uplink secondary carrier cell SCC is activated, and detect whether a resynchronization feedback signal is received within a preset time range. If no, the resynchronization is triggered, the triggering time of the resynchronization is T1, the starting time of the preset time range is the T1, the ending time is T2, and the difference between T2 and T1 is less than or equal to 30 milliseconds. .
  • the base station can increase the uplink throughput of the CA.
  • a third aspect of the present application provides a base station, including: a resynchronization module and a detection module.
  • the resynchronization module is configured to trigger resynchronization immediately after the uplink secondary carrier cell SCC is activated, and the triggering time of the resynchronization is T1.
  • the detection module is configured to detect whether a resynchronized feedback signal is received within a preset time range.
  • the resynchronization module is further configured to: if the detection module does not receive the feedback signal of the resynchronization within a preset time range, trigger resynchronization, where the starting time of the preset time range is the T1, the termination time For T2, the difference between T2 and T1 is less than or equal to 30 milliseconds.
  • the base station can increase the uplink throughput of the CA.
  • the base station detects whether a resynchronization feedback signal is received within a preset time range, and if not, triggering resynchronization includes: the base station detecting the preset time range by using a preset period Whether the feedback signal of the resynchronization is received, and if not, the resynchronization is triggered until the current time t1 does not belong to the preset time range.
  • the base station detects whether a resynchronization feedback signal is received within a preset time range, and if not, triggering resynchronization includes: detecting, by the base station, at time t2 within the preset time range Whether the feedback signal of the resynchronization is received, and if not, the resynchronization request is initiated again, t2 ⁇ T2.
  • the base station detects whether a resynchronization feedback signal is received at time T2, and if not, initiates a resynchronization request last time.
  • the mechanism of resynchronization is transmitted three times, which can save resources while improving the uplink throughput.
  • a fourth aspect of the present application provides a computer readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the resynchronization triggering method described above.
  • a fifth aspect of the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the resynchronization triggering method described above.
  • a sixth aspect of the present application provides a chip system including a processor for performing the resynchronization triggering method described above.
  • FIG. 1 is a flowchart of a resynchronization triggering method according to an embodiment of the present application
  • FIG. 2 is a flowchart of still another method for resynchronization triggering according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of still another base station according to an embodiment of the present application.
  • the resynchronization triggering method disclosed in the embodiment of the present application is applied to the scenario in which the MTA is enabled.
  • the scenario in which the MTA is enabled may be a non-same coverage of the CA (the two cells cover different regions), or may be the same coverage of the CA. (Two cells cover the same area) scenario.
  • the CA may be an uplink two carrier, or may be an uplink N (N is an integer greater than 2) carrier.
  • the base station delays the re-synchronization after 30 ms delay: the demodulation performance of different terminals is different.
  • the antenna cannot work immediately.
  • the existing protocol specifies that the antenna is activated. The lag time is 34 milliseconds, corresponding to the base station.
  • the existing protocol stipulates that after the uplink SCC is activated, the hysteresis is triggered by a delay of 30 milliseconds.
  • the probability of order can reach 80%.
  • the present application proposes a resynchronization triggering method, which aims to reduce the delay time of triggering resynchronization without reducing the demodulation performance of the terminal, thereby improving the throughput of the uplink CA.
  • FIG. 1 is a resynchronization triggering method according to an embodiment of the present application, including the following steps:
  • the base station triggers resynchronization immediately after the uplink SCC is activated.
  • S102 The base station detects whether a resynchronization feedback signal is received within a preset time range, and if not, triggers resynchronization. If yes, perform the subsequent steps specified in the existing agreement, and will not go into details here.
  • the starting time of the preset time range is the time T1 at which S101 triggers resynchronization
  • the ending time is T2
  • the difference T2-T1 between T2 and T1 may be 30 milliseconds, or less than 30 milliseconds.
  • the resynchronized feedback signal is a preamble Preamble signal transmitted by the terminal.
  • the base station may perform S102 in a preset period until the current time t1 does not belong to the preset time range.
  • the base station may also trigger resynchronization according to the process shown in FIG. 2.
  • S202 and S203 are a specific implementation manner of S102:
  • the base station initiates a resynchronization request immediately after the uplink SCC is activated.
  • S202 The base station detects whether a resynchronization feedback signal is received at a certain time t2 (t2 ⁇ T2) within a preset time range, and if not, initiates a resynchronization request again.
  • S203 The base station detects whether a feedback signal of resynchronization is received at time T2, and if not, initiates a resynchronization request for the last time.
  • the resynchronization triggering method disclosed in the embodiment of the present application improves the timing at which the base station initiates resynchronization for the first time, that is, immediately after the uplink SCC is activated, the resynchronization request is initiated.
  • This mechanism can ensure that most terminals can correctly demodulate the PDCCH order.
  • the base station will trigger re-synchronization again before the maximum lag time is reached, so as to ensure that the terminal does not start the first time because the base station initiates heavy
  • the timing of the synchronization changes to affect the performance of the terminal.
  • the base station may also skip S203, that is, only detect at time T2, and if a feedback signal of resynchronization is not received, initiate a resynchronization request.
  • FIG. 3 is a base station according to an embodiment of the present disclosure, including: a processor, optionally, further including a memory.
  • the processor is configured to trigger resynchronization immediately after the uplink secondary carrier cell SCC is activated, and the triggering time of the resynchronization is T1; and detecting whether a resynchronization feedback signal is received within a preset time range, and if not, triggering Synchronization, the starting time of the preset time range is the T1, the ending time is T2, and the difference between T2 and T1 is less than or equal to 30 milliseconds.
  • the memory is used to store applications for implementing the functions of the processor and data generated during the running of the application.
  • the base station shown in FIG. 3 initiates a resynchronization request immediately after the uplink SCC is activated. If the feedback of the resynchronization is not received, the resynchronization request is retransmitted after a maximum delay of 30 milliseconds. Therefore, the throughput of the uplink CA can be improved while ensuring correct demodulation of the terminal.
  • FIG. 4 is a base station according to an embodiment of the present disclosure, including: a resynchronization module and a detection module.
  • the resynchronization module is configured to trigger resynchronization immediately after the uplink secondary carrier cell SCC is activated, and the triggering time of the resynchronization is T1.
  • the detection module is configured to detect whether a resynchronized feedback signal is received within a preset time range.
  • the resynchronization module is further configured to: if the detection module does not receive the feedback signal of the resynchronization within a preset time range, trigger resynchronization, where the starting time of the preset time range is the T1, the termination time For T2, the difference between T2 and T1 is less than or equal to 30 milliseconds.
  • the detecting module may periodically detect whether a resynchronized feedback signal is received within a preset time range.
  • the detecting module detects whether a resynchronized feedback signal is received at time t2 within the preset time range, and if not, at time T2, it is detected whether a resynchronized feedback signal is received, t2 ⁇ T2.
  • the resynchronization module initiates a resynchronization request again. If the detection module does not receive the feedback signal of the resynchronization at time T2, the resynchronization module initiates the last time. Synchronize the request.
  • the base station shown in FIG. 4 improves the throughput of the uplink CA on the premise of ensuring correct demodulation of the terminal. Further, the three-time resynchronization request mechanism is adopted to save resources in the case of improving throughput.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本申请提供了一种重同步触发方法及基站。基站在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1。所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。因为基站在上行辅载波小区SCC激活后，立即触发重同步，所以，能够缩短触发重同步的迟滞时间，从而提高上行吞吐量。又因为如果在预设的时间范围内没有接收到重同步的反馈信号，则基站再次触发重同步，所以，能够实现对不同终端的兼容，保证终端能够正确解调物理下行控制信道命令。

Description

一种可重同步触发方法及基站
本申请要求于2017年06月08日提交中国专利局、申请号为201710427444.7、发明名称为“一种可重同步触发方法及基站”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
本申请涉及通信领域，尤其涉及一种重同步触发方法及基站。
背景技术
随着载波聚合(Carrier Aggregation，CA)技术的日趋成熟，对于上行CA技术的诉求越来越多。为保证上行CA的解调性能，基站通过发送时间提前量(Timing Advances，TA)给终端。终端依据TA维护上行同步。在上行CA场景中，终端可以在多个小区发送上行数据，而多个小区的TA有可能不同，因此，对于终端而言，有可能需要同时维护多个时间提前量(Multiple Timing Advances，MTA)。
现有技术中，在开启MTA的情况下，基站在上行辅载波小区(Secondary Carrier Cell，SCC)激活后，需要迟滞30毫秒后，再触发重同步。而基站触发重同步的时间过长，会导致上行吞吐量受损。
发明内容
本申请提供了一种重同步触发方法及基站，目的在于解决现有的重同步触发方法导致的上行吞吐量受损的问题。
为了实现上述目的，本申请提供了以下技术方案：
本申请的第一方面提供了一种重同步触发方法，包括：基站在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1。所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。因为基站在上行辅载波小区SCC激活后，立即触发重同步，所以，能够缩短触发重同步的迟滞时间，从而提高上行吞吐量。又因为如果在预设的时间范围内没有接收到重同步的反馈信号，则基站再次触发重同步，所以，能够实现对不同终端的兼容，保证终端能够正确解调物理下行控制信道命令。
本申请的第二方面提供了一种基站，包括：处理器，用于在上行辅载波小区SCC激活后，立即触发重同步，并检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，所述重同步的触发时刻为T1，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。所述基站能够提高CA的上行吞吐量。
本申请的第三方面提供了一种基站，包括：重同步模块和检测模块。其中，重同步模块用于在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻 为T1。检测模块用于检测在预设的时间范围内是否接收到重同步的反馈信号。所述重同步模块还用于，如果检测模块在预设的时间范围内没有接收到重同步的反馈信号，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。所述基站能够提高CA的上行吞吐量。
在一个实现方式中，所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步包括：所述基站以预设的周期、检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，直到当前时刻t1不属于所述预设的时间范围内。
在一个实现方式中，所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步包括：所述基站在所述预设的时间范围内的时刻t2检测是否接收到重同步的反馈信号，如果否，再次发起重同步请求，t2＜T2。所述基站在时刻T2，检测是否接收到重同步的反馈信号，如果否，最后一次发起重同步请求。分三次发送重同步的机制，能够在提高上行吞吐量的情况下，节省资源。
本申请的第四方面提供了一种计算机可读存储介质，所述计算机可读存储介质存储有指令，所述指令在计算机上运行时，使得所述计算机执行上述的重同步触发方法。
本申请的第五方面提供了一种包含指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得所述计算机执行上述的重同步触发方法。
本申请的第六方面提供了一种芯片系统，包括处理器，用于执行上述的重同步触发方法。
附图说明
图1为本申请实施例公开的一种重同步触发方法的流程图；
图2为本申请实施例公开的又一种重同步触发方法的流程图；
图3为本申请实施例公开的一种基站的结构示意图；
图4为本申请实施例公开的又一种基站的结构示意图。
具体实施方式
本申请实施例公开的重同步触发方法应用在MTA开启的场景下，具体的，MTA开启的场景可以为CA的非同覆盖(两个小区覆盖不同的区域)场景，也可以为CA的同覆盖(两个小区覆盖相同的区域)场景。
本实施例中，CA可以为上行两载波，也可以为上行N(N为大于2的整数)载波。
现有协议中，基站在上行SCC激活后，迟滞30毫秒再触发重同步的原因为：不同终端的解调性能不同，有些终端激活上行SCC后，天线无法立即工作，现有协议规定天线启动的迟滞时间为34毫秒，对应到基站，现有协议规定上行SCC激活后，迟滞30毫秒再触发重同步。
而申请人在研究的过程中发现，如果基站在上行SCC激活后立即触发重同步，则现有的终端能够正确解调到重同步信号，即物理下行控制信道命令(Physical Downlink  Control Channel order，PDCCH order)的概率能够达到80％。
基于上述发现，本申请提出了一种重同步触发方法，目的在于，在不降低终端解调性能的前提下，减少触发重同步的迟滞时间，从而提高上行CA的吞吐量。
图1为本申请实施例公开的一种重同步触发方法，包括以下步骤：
S101：基站在上行SCC激活后，立即触发重同步。
基于上述发现，在上行SCC激活后，立即触发重同步，大多数终端均能够正确解调PDCCH order。考虑到少数不能正确解调PDCCH order的终端，使用下面的步骤提高终端的解调正确率。
S102：基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步。如果是，执行现有协议中规定的后续步骤，这里不再赘述。
具体的，预设的时间范围的起始时刻为S101触发重同步的时刻T1，终止时刻为T2，T2与T1的差值T2-T1可以为30毫秒，或者小于30毫秒。
重同步的反馈信号为终端发送的前导Preamble信号。
可选的，基站可以以预设的周期执行S102，直到当前时刻t1不属于预设的时间范围内。
或者，为了节省消耗和资源，基站也可以按照图2所示的过程触发重同步，图2中，S202和S203为S102的一种具体实现方式：
S201：基站在上行SCC激活后，立即发起重同步请求。
S202：基站在预设的时间范围内的某个时刻t2(t2＜T2)检测是否接收到重同步的反馈信号，如果否，再次发起重同步请求。
S203：基站在时刻T2检测是否接收到重同步的反馈信号，如果否，最后一次发起重同步请求。
从图1以及图2可以看出，本申请实施例公开的重同步触发方法，改进了基站首次发起重同步的时机，即在上行SCC激活后，立即发起重同步请求。这种机制能够保证大多数终端能够正确解调PDCCH order，而对于不能正确解调PDCCH order的终端，基站会在最大迟滞时间达到之前，再次触发重同步，以保证终端不会因为基站首次发起重同步的时机的修改而影响终端的性能。
可选的，基站也可以跳过S203，也就是说，只在时刻T2检测，如果没有收到重同步的反馈信号，再发起一次重同步请求。
需要说明的是，在实际应用中，可以依据实际需求，综合考虑终端解调PDCCH order的正确率和资源消耗，对S101所示的步骤进行灵活调整。
图3为本申请实施例公开的一种基站，包括：处理器，可选的，还包括存储器。
处理器用于在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1；并检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值 小于或等于30毫秒。
处理器的功能的具体实现过程可以参见上述方法实施例，这里不再赘述。
存储器用于存储用于实现处理器的功能的应用程序以及应用程序运行过程中产生的数据。
图3所示的基站，在上行SCC激活后，立即发起重同步请求，如果没有收到重同步的反馈，则最长迟滞30毫秒后重发重同步请求。因此，能够在保证终端正确解调的前提下，提高上行CA的吞吐量。
图4为本申请实施例公开的一种基站，包括：重同步模块和检测模块。
其中，重同步模块用于在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1。检测模块用于检测在预设的时间范围内是否接收到重同步的反馈信号。所述重同步模块还用于，如果检测模块在预设的时间范围内没有接收到重同步的反馈信号，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。
具体的，检测模块可以周期性地检测在预设的时间范围内是否接收到重同步的反馈信号。
或者，检测模块在所述预设的时间范围内的时刻t2检测是否接收到重同步的反馈信号，如果否，在时刻T2，检测是否接收到重同步的反馈信号，t2＜T2。
如果检测模块在时刻t2没有接收到重同步的反馈信号，所述重同步模块再次发起重同步请求，如果检测模块在时刻T2没有接收到重同步的反馈信号，所述重同步模块最后一次发起重同步请求。
图4所示的基站，在保证终端正确解调的前提下，提高上行CA的吞吐量。进一步的，采用的三次重同步请求机制，在提高吞吐量的情况下，节省资源。

Claims (12)

  1. 一种重同步触发方法，其特征在于，包括：
    基站在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1；
    所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。
  2. 根据权利要求1所述的方法，其特征在于，所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步包括：
    所述基站以预设的周期、检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，直到当前时刻t1不属于所述预设的时间范围内。
  3. 根据权利要求1所述的方法，其特征在于，所述基站检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步包括：
    所述基站在所述预设的时间范围内的时刻t2检测是否接收到重同步的反馈信号，如果否，再次发起重同步请求，t2＜T2；
    所述基站在时刻T2，检测是否接收到重同步的反馈信号，如果否，最后一次发起重同步请求。
  4. 一种基站，其特征在于，包括：
    处理器，用于在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1；并检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2，T2与T1的差值小于或等于30毫秒。
  5. 根据权利要求4所述的基站，其特征在于，所述处理器用于检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步包括：
    所述处理器具体用于，以预设的周期、检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步，直到当前时刻t1不属于所述预设的时间范围内。
  6. 根据权利要求4所述的基站，其特征在于，所述处理器用于检测在预设的时间范围内是否接收到重同步的反馈信号，如果否，触发重同步包括：
    所述处理器具体用于，在所述预设的时间范围内的时刻t2检测是否接收到重同步的反馈信号，如果否，再次发起重同步请求，t2＜T2；并在时刻T2，检测是否接收到重同步的反馈信号，如果否，最后一次发起重同步请求。
  7. 一种基站，其特征在于，包括：
    重同步模块，用于在上行辅载波小区SCC激活后，立即触发重同步，所述重同步的触发时刻为T1；
    检测模块，用于检测在预设的时间范围内是否接收到重同步的反馈信号；
    所述重同步模块还用于，如果检测模块在预设的时间范围内没有接收到重同步的反馈信号，触发重同步，所述预设的时间范围的起始时刻为所述T1，终止时刻为T2， T2与T1的差值小于或等于30毫秒。
  8. 根据权利要求7所述的基站，其特征在于，所述检测模块用于检测在预设的时间范围内是否接收到重同步的反馈信号包括：
    所述检测模块具体用于，以预设的周期、检测在预设的时间范围内是否接收到重同步的反馈信号。
  9. 根据权利要求7所述的基站，其特征在于，所述检测模块用于检测在预设的时间范围内是否接收到重同步的反馈信号，所述重同步模块用于如果检测模块在预设的时间范围内没有接收到重同步的反馈信号，触发重同步包括：
    所述检测模块具体用于，在所述预设的时间范围内的时刻t2检测是否接收到重同步的反馈信号，如果否，在时刻T2，检测是否接收到重同步的反馈信号，t2＜T2；
    所述重同步模块具体用于，如果所述检测模块在时刻t2没有接收到重同步的反馈信号，再次发起重同步请求，如果所述检测模块在时刻T2没有接收到重同步的反馈信号，最后一次发起重同步请求。
  10. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有指令，所述指令在计算机上运行时，使得所述计算机执行权利要求1至3任一项所述的重同步触发方法。
  11. 一种包含指令的计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得所述计算机执行权利要求1至3任一项所述的重同步触发方法。
  12. 一种芯片系统，其特征在于，包括处理器，用于执行权利要求1至3任一项所述的重同步触发方法。
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