WO2020253450A1 - 一种终端切换小区的方法、装置、基站及计算机可读存储介质 - Google Patents

一种终端切换小区的方法、装置、基站及计算机可读存储介质 Download PDF

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WO2020253450A1
WO2020253450A1 PCT/CN2020/091033 CN2020091033W WO2020253450A1 WO 2020253450 A1 WO2020253450 A1 WO 2020253450A1 CN 2020091033 W CN2020091033 W CN 2020091033W WO 2020253450 A1 WO2020253450 A1 WO 2020253450A1
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base station
narrowband
rar
terminal
preset
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PCT/CN2020/091033
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English (en)
French (fr)
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赵辉
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

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  • the embodiments of the present invention relate to the field of communications, and in particular to a method, a device, a base station, and a computer-readable storage medium for a terminal to switch cells.
  • 3GPP (3rd Generation Partnership Project) defined the Enhanced Machine Communication (eMTC) protocol in Release 13 to support the large-connected WAN Internet of Things.
  • eMTC Enhanced Machine Communication
  • the eMTC terminal handover process between cells is shown in Figure 1.
  • the source base station sends a handover command directly to the eMTC terminal after receiving the handover request confirmation from the target base station, and then the eMTC terminal Random access is initiated to the target base station, and this access method will affect the success rate of eMTC terminal handover.
  • the embodiments of the present invention provide a method, a device, a base station, and a computer-readable storage medium for a terminal to switch cells, which at least to a certain extent solves one of the technical problems in the related technology, including a low handover success rate when the terminal switches cells problem.
  • some embodiments of the present invention provide a method for a terminal to switch cells, which is applied to a source base station, and the method includes: after receiving a handover request response from the target base station, sending a handover command to the terminal in the handover cell , And shut down the scheduling service on the narrowband where the preset random access response RAR of the source base station is located, and restart the scheduling service on the narrowband where the preset RAR is located after a predetermined time; wherein, the narrowband where the preset RAR is located is the target The narrowband where the base station and the terminal RAR are located.
  • Some embodiments of the present invention provide an apparatus for a terminal to switch cells, which is applied to a source base station, and the apparatus includes: a receiving unit for receiving a handover request response sent by a target base station; After receiving the handover request response from the target base station, send a handover command to the terminal in the handover cell, and close the scheduling service on the narrowband where the source base station preset random access response RAR is located, and restart after a predetermined time The scheduling service on the narrowband where the preset RAR is located; wherein the narrowband where the preset RAR is located is the narrowband where the target base station and the C terminal RAR are located.
  • Some embodiments of the present invention provide a computer-readable storage medium with a computer program stored on the computer storage medium, and when the computer program is executed by a processor, the steps of any one of the methods for switching cells of a terminal are implemented .
  • the base station includes a memory, a processor, and a computer program stored on the memory and running on the processor, and the computer program is executed by the processor. The steps of any of the described methods are implemented when executed.
  • FIG. 1 is a schematic flowchart of a method for a terminal to switch cells in related technologies
  • FIG. 2 is a schematic flowchart of a method for a terminal to switch cells according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of narrowband division in an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another method for a terminal to switch cells according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for a terminal to switch cells according to an embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the embodiments of the present invention provide a method, an apparatus, a base station, and a computer-readable storage medium for a terminal to switch cells.
  • the following describes the embodiments of the present invention in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and do not limit the present invention.
  • the first embodiment of the present invention provides a method for a terminal to switch cells.
  • the process of the method is shown in FIG. 2 and includes steps S201 to S203:
  • the source base station Before this step, the source base station must first determine whether the handover condition is met, and if the handover condition is met, it sends a handover request to the target base station, and then the target base station returns a handover request response to the source base station.
  • the handover request response returned by the target base station to the source base station in the embodiment of the present invention includes at least the narrowband position of the RAR (Random Access Response) when the terminal accesses the target base station, that is, the target base station sends
  • the handover request response returned by the source base station should carry the narrowband position of the RAR used by the target base station to access the terminal for the terminal to access the target base station.
  • S202 Send a handover command to the terminal in the handover cell, and turn off the scheduling service on the narrowband where the source base station preset random access response RAR is located;
  • the handover command sent by the source base station to the terminal includes basic information for the terminal to access the target cell, such as the target cell ID, the narrowband position of the RAR when the terminal accesses the target base station, and so on.
  • the narrowband where the preset RAR is located is the narrowband where the RAR of the target base station and the terminal are located.
  • the predetermined time described in the embodiment of the present invention is less than the preset handover cell time.
  • the preset handover cell time is the preset value of the time for the terminal to switch the cell. When this time value is reached, the terminal will be triggered Initiate connection requests to all handoverable cells to ensure that the terminal can access the cell.
  • the source base station after the source base station sends a handover command to the terminal, the source base station does not schedule services in the narrowband where the target base station random access response is located for a period of time, so as to reduce the interference of the source base station to the terminal handover.
  • the success rate of terminal access is improved, thereby effectively solving the problem of reducing the success rate of terminal handover in related technologies due to interference from the source cell.
  • the eMTC terminal Since the eMTC terminal performs resource allocation in a narrowband, all narrowbands have a size of 6 resource blocks (RB, Resource Block). The total number of downlink narrowbands is among them The number of RBs representing the bandwidth of the entire system. Taking 5M bandwidth as an example, the narrowband division of eMTC is shown in Figure 3.
  • the random access response (Random Access Response, RAR) downlink control channel (MTC Physical Downlink Control Channel, MPDCCH) of the eMTC terminal is fixed to one or two narrowband scheduling, which is determined by the high-level parameter mpdcch-NarrowbandsToMonitor-r13. When configured When it is two, it is determined according to Table 1.
  • Table 1 MPDCCH narrowband index of RAR.
  • the embodiment of the present invention reduces the interference of the source base station to the switching cell of the eMTC terminal by turning off the scheduling service of the source base station, the target base station and the narrowband where the eMTC terminal RAR is located, so that the eMTC terminal can smoothly switch to the target base station. , Thereby improving the success rate of eMTC terminal handover.
  • the eMTC terminal receives strong interference from the source cell when it receives the handover command from the source cell and initiates random access to the target cell. Therefore, the embodiment of the present invention After the source base station sends a handover command to the eMTC terminal, within a period of time, the source base station does not schedule services in the narrowband where the random access response (RAR) of the target base station is located, so as to reduce the interference of the source base station to the switching cell of the eMTC terminal.
  • RAR random access response
  • step S102 of the embodiment of the present invention turning off the scheduling service on the narrowband where the preset RAR is located by the source base station, and restarting the scheduling service on the narrowband where the preset RAR is located after a predetermined time, includes:
  • the embodiment of the present invention uses a timer to monitor the time when the source base station closes the scheduling service on the narrowband where the preset RAR is located, and when the timer reaches the preset time, it restarts the narrowband where the preset RAR is located. Scheduling business.
  • the embodiment of the present invention is aimed at that handover occurs at the edge of two cells.
  • the eMTC terminal After receiving the handover command from the source cell, the eMTC terminal initiates random access to the target cell.
  • the source cell is a strong interference to the eMTC terminal.
  • the RAR is received when the eMTC terminal accesses the target cell, which in turn affects the success rate of handover of the eMTC terminal.
  • the eMTC terminal handover process in the embodiment of the present invention improves the access success rate.
  • the source cell receives the handover request confirmation sent by the target cell, the source cell sends a handover command to the terminal, the source cell starts the timer T, step 4: the source cell does not schedule services in the narrowband where the target cell RAR is located before the timer T expires After the timer T expires, the service can be scheduled in the narrowband where the RAR of the target cell is located.
  • Figure 4 is a schematic diagram of inter-cell handover. After the source cell issues a handover command, it will not schedule services at the narrowband location of the target cell RAR for a period of time. details as follows:
  • Step 401 The source base station initiates a handover request to the target base station.
  • the source base station determines that the terminal meets the handover condition, it initiates a handover request to the target base station.
  • Step 402 The source base station receives the handover request response sent by the target base station.
  • the target base station sends a handover request response to the source base station, which contains the narrowband position of the RAR when the eMTC terminal accesses the target base station, where it is marked as NB1, and the position of NB1 is recorded.
  • Step 403 The source base station sends a handover command to the terminal.
  • the handover command includes basic information for the eMTC terminal to access the target cell.
  • the terminal After receiving the handover command, the terminal initiates random access to the target cell.
  • Step 404 The source base station starts a timer T (that is, the predetermined time value mentioned in the embodiment of the present invention).
  • the recommended value of the timer T does not exceed the handover timer (that is, the preset handover cell time value mentioned in the embodiment of the present invention).
  • Step 405 Determine whether the timer expires, if it expires, go to step 407; if not, go to step 406.
  • Step 406 The service is not scheduled in the narrowband where the RAR of the target cell is located.
  • step 405 determines whether the timer expires.
  • Step 407 Restore the normal scheduling service in the narrowband where the RAR of the target cell is located.
  • Step 408 End.
  • the narrowband interference where the RAR is located is reduced, so the success rate of the system eMTC handover is improved, and further Improve the user experience.
  • the second embodiment of the present invention provides an apparatus for a terminal to switch cells. Referring to FIG. 5, it is applied to a source base station and includes:
  • the receiving unit 501 is configured to receive a handover request response sent by the target base station;
  • the processing unit 502 is configured to, after the receiving unit 501 receives the handover request response sent by the target base station, send a handover command to the terminal in the handover cell, and turn off the narrowband where the source base station preset random access response RAR is located After a predetermined time, restart the scheduling service on the narrowband where the preset RAR is located;
  • the narrowband where the preset RAR is located is the narrowband where the target base station and the terminal RAR are located.
  • the handover request response in the embodiment of the present invention carries the position of the narrowband where the terminal accesses the target base station RAR.
  • the handover command carries the target base station information and the narrowband position where the terminal accesses the target base station preset RAR.
  • the processing unit 502 does not schedule services in the narrowband where the RAR of the target base station is located for a period of time to reduce
  • the interference of the source base station to the terminal handover cell improves the access success rate, thereby effectively solving the problem of reducing the terminal handover success rate due to the source cell interference in related technologies.
  • the processing unit 502 in the embodiment of the present invention starts a timer after closing the scheduling service on the narrowband preset RAR of the source base station, and restarts the timer after the timer reaches the predetermined time. Scheduling service on the narrowband where RAR is located.
  • the embodiment of the present invention uses a timer to monitor the time when the source base station closes the scheduling service on the narrowband where the preset RAR is located, and when the timer reaches the preset time, it restarts the narrowband where the preset RAR is located. Scheduling business.
  • the predetermined time in the embodiment of the present invention is less than the preset cell handover time.
  • the eMTC terminal Since the eMTC terminal performs resource allocation in a narrowband, all narrowbands have a size of 6 resource blocks (RB, Resource Block). The total number of downlink narrowbands is among them The number of RBs representing the bandwidth of the entire system. Taking 5M bandwidth as an example, the narrowband division of eMTC is shown in Figure 3.
  • the random access response (Random Access Response, RAR) downlink control channel (MTC Physical Downlink Control Channel, MPDCCH) of the eMTC terminal is fixed to one or two narrowband scheduling, which is determined by the high-level parameter mpdcch-NarrowbandsToMonitor-r13. When configured When it is two, it is determined according to Table 1.
  • Table 1 MPDCCH narrowband index of RAR.
  • the embodiment of the present invention reduces the interference of the source base station to the switching cell of the eMTC terminal by turning off the scheduling service of the source base station, the target base station and the narrowband where the eMTC terminal RAR is located, so that the eMTC terminal can smoothly switch to the target base station. , Thereby improving the success rate of eMTC terminal handover.
  • the eMTC terminal since the handover occurs at the edge of the two cells, the eMTC terminal receives strong interference from the source cell when it receives the handover command from the source cell and initiates random access to the target cell. Therefore, the embodiment of the present invention After the source base station sends the handover command to the eMTC terminal, the source base station does not schedule services in the narrowband where the target base station RAR is located for a period of time, so as to reduce the interference of the source base station to the eMTC terminal handover cell and improve the access success rate, thereby effectively solving In the related art, the problem of reducing the success rate of eMTC terminal handover due to the interference of the source cell.
  • the third embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored.
  • the computer program When the computer program is executed by a processor, the computer program described in any one of the first embodiments of the present invention is implemented.
  • the steps of the method for the terminal to switch cells. The relevant content of the embodiment of the present invention can be understood with reference to the part of the first embodiment of the present invention, and will not be discussed in detail here.
  • the fourth embodiment of the present invention provides a base station.
  • the base station includes: a memory 601, a processor 602, and a computer program stored on the memory 601 and running on the processor 602 When the computer program is executed by the processor 602, the steps of any one of the methods in the first embodiment of the present invention are implemented.
  • the relevant content of the embodiment of the present invention can be understood with reference to the part of the first embodiment of the present invention, and will not be discussed in detail here.
  • the source base station after the source base station sends a handover command to the terminal, the source base station does not schedule services in the narrowband where the random access response (RAR) of the target base station is located for a period of time, so as to reduce the source base station to switch cells to the terminal
  • RAR random access response
  • the interference increases the access success rate, thereby effectively solving the problem of reducing the terminal handover success rate due to the source cell interference in related technologies.

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Abstract

一种终端切换小区的方法、装置、基站及计算机可读存储介质，通过源基站在向eMTC终端发送切换命令后，一段时间内源基站在目标基站随机接入响应RAR所在窄带不调度业务。

Description

一种终端切换小区的方法、装置、基站及计算机可读存储介质
相关申请的交叉引用
本申请基于申请号为201910541131.3、申请日为2019年06月21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
本发明实施例涉及通讯领域，特别是涉及一种终端切换小区的方法、装置、基站及计算机可读存储介质。
背景技术
3GPP(3rd Generation Partnership Project)在Release13中定义了增强机器通信(enhanced Machine Type Communication，eMTC)协议，以支持大连接的广域网物联网。
eMTC终端在小区间切换流程具体如图1所示，根据图1可知，相关技术中，源基站在接收到目标基站发来的切换请求确认后，就直接向eMTC终端发送切换命令，然后eMTC终端就向目标基站发起随机接入，而该种接入方式会影响eMTC终端切换的成功率。
发明内容
本发明实施例提供了一种终端切换小区的方法、装置、基站及计算机可读存储介质，至少在一定程度上解决相关技术中的技术问题之一，包括终端切换小区时切换成功率较低的问题。
有鉴于此，本发明的一些实施例提供了一种终端切换小区的方法，应用于源基站，所述方法包括：接收目标基站发来的切换请求响应后，向切换小区内的终端发送切换命令，并关闭所述源基站预设随机接入响应RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务；其中，所述预设RAR所在窄带为目标基站与所述终端RAR所在的窄带。
本发明的一些实施例提供一种终端切换小区的装置，应用于源基站，所述装置包括：接收单元，用于接收目标基站发来的切换请求响应；处理单元，用于在所述接收单元接收到所述目标基站发来的切换请求响应后，向切换小区内的终端发送切换命令，并关闭所述 源基站预设随机接入响应RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务；其中，所述预设RAR所在窄带为目标基站与所述C终端RAR所在的窄带。
本发明的一些实施例提供了一种计算机可读存储介质，所述计算机存储介质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任一种所述的终端切换小区的方法的步骤。
本发明的一些实施例提供了一种基站，所述基站包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现任一种所述的方法的步骤。
附图说明
图1是相关技术中终端切换小区的方法的流程示意图；
图2是本发明实施例一种终端切换小区的方法的流程示意图；
图3是本发明实施例中窄带划分示意图；
图4是本发明实施例另一种终端切换小区的方法的流程示意图；
图5是本发明实施例一种终端切换小区装置的结构示意图；
图6是本发明实施例一种基站的结构示意图。
具体实施方式
本发明实施例提供了一种终端切换小区的方法、装置、基站及计算机可读存储介质，以下结合附图以及实施例，对本发明实施例进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明实施例，并不限定本发明。
本发明第一实施例提供了一种终端切换小区的方法，该方法的流程如图2所示，包括步骤S201至S203：
S201，接收目标基站发来的切换请求响应；
在本步骤之前，源基站要先判断是否满足切换条件，如果满足切换条件，则向目标基站发送切换请求，而后目标基站再向源基站返回切换请求响应。
需要说明的是，本发明实施例目标基站向源基站返回的切换请求响应中至少包括终端接入目标基站时RAR(Random Access Response，终端的随机接入响应)的窄带位置，即，目标基站向源基站返回的切换请求响应中要携带有目标基站接入终端所使用的RAR的窄带位置，以供终端接入目标基站使用。
S202，向切换小区内的终端发送切换命令，并关闭所述源基站预设随机接入响应RAR所在窄带上的调度业务；
源基站在向终端发送的切换命令包括了终端接入目标小区的基本信息，如，目标小区ID，终端接入目标基站时RAR的窄带位置，等等。
其中，本发明实施例中，所述预设RAR所在窄带为目标基站与所述终端RAR所在的窄带。
S203，在预定时间后，重启所述预设RAR所在窄带上的调度业务。
在具体实施时，本发明实施例所述预定时间小于预设切换小区时间，该预设切换小区时间为预先规定的终端切换小区所用时间的设定值，当达到该时间值后，会触发终端向所有可切换的小区发起连接请求，以保证终端能够接入小区。
也就是说，本发明实施例通过源基站在向终端发送切换命令后，一段时间内，源基站在目标基站随机接入响应所在窄带不调度业务，以减少源基站对终端切换小区的干扰，从而提升终端接入的成功率，进而有效解决了相关技术中由于源小区的干扰而降低终端切换成功率的问题。
需要说明的是，本发明实施例所述的方法可以应用于增强机器通信(enhanced Machine Type Communication，eMTC)终端上，当然本领域技术人员也可以根据实际需要将本发明实施例所述的方法应用于5G、6G等其他终端的小区切换上。
下面将主要以eMTC终端为例，对本发明实施例所述方法进行详细说明：
由于eMTC终端是在一个窄带内进行资源分配，所有的窄带大小均为6个资源块(RB，Resource Block)。下行窄带总数为
Figure PCTCN2020091033-appb-000001
其中
Figure PCTCN2020091033-appb-000002
表示整个系统带宽的RB数。以5M带宽为例，eMTC的窄带划分如图3所示。
eMTC终端的随机接入响应(Random Access Response，RAR)的下行控制信道(MTC Physical Downlink Control Channel，MPDCCH)固定在某1个或2个窄带调度，由高层参数mpdcch-NarrowbandsToMonitor-r13确定，当配置为2个时则根据表1来确定。
表1 RAR的MPDCCH窄带索引.
Figure PCTCN2020091033-appb-000003
基于该点，本发明实施例通过关闭源基站在，目标基站和eMTC终端RAR所在的窄带，上的调度业务，来减少源基站对eMTC终端切换小区的干扰，使eMTC终端能够顺利切换到目标基站，从而提高eMTC终端切换小区的成功率。
总体来说，由于切换是发生在两个小区的边缘，因此eMTC终端收到源小区的切换命令后，向目标小区发起随机接入过程中，会受到源小区的强干扰，所以本发明实施例通过源基站在向eMTC终端发送切换命令后，一段时间内，源基站在目标基站随机接入响应(Random Access Response，RAR)所在窄带不调度业务，以减少源基站对eMTC终端切换小区的干扰，提升接入成功率，从而有效解决了相关技术中由于源小区的干扰而降低eMTC终端切换成功率的问题。
本发明实施例步骤S102中，关闭所述源基站预设RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务，包括：
关闭所述源基站预设RAR所在窄带上的调度业务后，启动定时器，在定时器计时达到所述预定时间后，重启所述RAR所在窄带上的调度业务。
具体来说，本发明实施例是通过定时器来监控源基站关闭预设RAR所在窄带上的调度业务的时间的，当定时器达到该预定时间后，会重新开启所述预设RAR所在窄带上的调度业务。
当然本领域技术人员也可以通过其他方式来监控关闭RAR所在窄带上的调度业务的时间，本发明实施例对此不作具体限定。
本发明实施例所针对的是切换发生在两个小区的边缘，eMTC终端收到源小区的切换命令后，向目标小区发起随机接入，此时源小区对eMTC终端来说是强干扰，影响eMTC终端向目标小区接入时RAR接收，进而影响eMTC终端切换成功率。
为了提升上述场景下eMTC终端的切换成功率，本发明实施例在eMTC终端切换过程中，源小区下发切换命令后，一段时间内在目标小区RAR所在窄带不调度业务，以减少对终端接入目标小区的干扰，提升接入成功率。
具体包括：源小区收到目标小区发的切换请求确认，源小区向终端发送切换命令，源小区启动定时器T，步骤四：源小区在定时器T超时前，不在目标小区RAR所在窄带调度业务，定时器T超时后，可以在目标小区RAR所在窄带调度业务。
下面将结合图4对本发明实施例所述的方法进行详细的解释和说明：
图4为小区间切换示意图，源小区在下发切换命令后，一段时间内不在目标小区RAR的窄带位置调度业务。具体如下：
步骤401：源基站向目标基站发起切换请求。
本步骤中，源基站判决该终端满足切换条件后，向目标基站发起切换请求。
步骤402：源基站接收目标基站发送的切换请求响应。
本步骤中，目标基站向源基站发送切换请求响应，其中包含了eMTC终端接入目标基站时RAR的窄带位置，此处标记为NB1，记录NB1的位置。
步骤403：源基站向终端发送切换命令。
本步骤中，切换命令中包括了eMTC终端接入目标小区的基本信息。终端收到切换命令后，向目标小区发起随机接入。
步骤404：源基站启动定时器T(即，本发明实施例上述的预定时间值)。
本步骤中，定时器T的建议值不超过切换定时器(即，本发明实施例上述的预设切换小区时间值)。
步骤405：判断定时器是否超时，如果超时，则进入步骤407；如果没超时，则进入步骤406。
步骤406：不在目标小区RAR所在窄带调度业务。
如果定时器T没超时，则不在NB1上调度业务。下一个子帧继续进入步骤405，判断定时器是否超时。
步骤407：恢复在目标小区RAR所在窄带正常调度业务。
步骤408：结束。
采用本发明实施例所述方法，通过源小区和目标小区的干扰协调方法，eMTC终端在切换过程中向目标小区随机接入时，RAR所在窄带干扰降低，所以提高了系统eMTC切换 成功率，进而提高了用户体验。
本发明第二实施例提供了一种终端切换小区的装置，参见图5，应用于源基站，包括：
接收单元501，用于接收目标基站发来的切换请求响应；
处理单元502，用于在所述接收单元501接收到目标基站发来的切换请求响应后，向切换小区内的终端发送切换命令，并关闭所述源基站预设随机接入响应RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务；
其中，所述预设RAR所在窄带为目标基站与所述终端RAR所在的窄带。
并且，本发明实施例的切换请求响应中携带有所述终端接入所述目标基站RAR所在的窄带的位置。且切换命令中携带有所述目标基站信息和所述终端接入所述目标基站预设RAR所在的窄带的位置。
本发明实施例是通过源基站在向终端发送切换命令后，当接收单元501接收到目标基站发来的切换请求响应后，一段时间内处理单元502在目标基站RAR所在窄带不调度业务，以减少源基站对终端切换小区的干扰，提升接入成功率，从而有效解决了相关技术中由于源小区的干扰而降低终端切换成功率的问题。
具体实施时，本发明实施例的所述处理单元502是在关闭所述源基站预设RAR所在窄带上的调度业务后，启动定时器，在定时器计时达到所述预定时间后，重启所述RAR所在窄带上的调度业务。
具体来说，本发明实施例是通过定时器来监控源基站关闭预设RAR所在窄带上的调度业务的时间的，当定时器达到该预定时间后，会重新开启所述预设RAR所在窄带上的调度业务。
具体实施时，本发明实施例所述预定时间小于预设切换小区时间。
需要说明的是，本发明实施例所述的方法可以应用于eMTC终端上，当然本领域技术人员也可以根据实际需要将本发明实施例所述的方法应用于5G、6G等其他终端的小区切换上。
下面将主要以eMTC终端为例，对本发明实施例进行详细说明：
由于eMTC终端是在一个窄带内进行资源分配，所有的窄带大小均为6个资源块(RB，Resource Block)。下行窄带总数为
Figure PCTCN2020091033-appb-000004
其中
Figure PCTCN2020091033-appb-000005
表示整个系统带宽的RB数。以5M带宽为例，eMTC的窄带划分如图3所示。
eMTC终端的随机接入响应(Random Access Response，RAR)的下行控制信道(MTC Physical Downlink Control Channel，MPDCCH)固定在某1个或2个窄带调度，由高层参数mpdcch-NarrowbandsToMonitor-r13确定，当配置为2个时则根据表1来确定。
表1 RAR的MPDCCH窄带索引.
Figure PCTCN2020091033-appb-000006
基于该点，本发明实施例通过关闭源基站在，目标基站和eMTC终端RAR所在的窄带，上的调度业务，来减少源基站对eMTC终端切换小区的干扰，使eMTC终端能够顺利切换到目标基站，从而提高eMTC终端切换小区的成功率。
总体来说，由于切换是发生在两个小区的边缘，因此eMTC终端收到源小区的切换命令后，向目标小区发起随机接入过程中，会受到源小区的强干扰，所以本发明实施例通过源基站在向eMTC终端发送切换命令后，一段时间内，源基站在目标基站RAR所在窄带不调度业务，以减少源基站对eMTC终端切换小区的干扰，提升接入成功率，从而有效解决了相关技术中由于源小区的干扰而降低eMTC终端切换成功率的问题。
本发明实施例的相关内容可参照本发明第一实施例部分进行理解，在此不做详细论述。
本发明第三实施例提供了一种计算机可读存储介质，所述计算机存储介质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本发明第一实施例中任一种所述的终端切换小区的方法的步骤。本发明实施例的相关内容可参照本发明第一实施例部分进行理解，在此不做详细论述。
如图6所示，本发明第四实施例提供了一种基站，所述基站包括：存储器601、处理器602及存储在所述存储器601上并可在所述处理器602上运行的计算机程序，所述计算机程序被所述处理器602执行时实现本发明第一实施例中任一种所述的方法的步骤。本发 明实施例的相关内容可参照本发明第一实施例部分进行理解，在此不做详细论述。
根据本发明实施例，通过源基站在向终端发送切换命令后，一段时间内源基站在目标基站随机接入响应(Random Access Response，RAR)所在窄带不调度业务，以减少源基站对终端切换小区的干扰，提升接入成功率，从而有效解决了相关技术中由于源小区的干扰，而降低终端切换成功率的问题。
尽管为示例目的，已经公开了本发明的一些实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。

Claims (10)

  1. 一种终端切换小区的方法，应用于源基站，包括：
    接收目标基站发来的切换请求响应后，向切换小区内的终端发送切换命令，并关闭所述源基站预设随机接入响应RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务；
    其中，所述预设RAR所在窄带为目标基站与所述终端RAR所在的窄带。
  2. 如权利要求1所述的方法，其中，关闭所述源基站预设RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务，包括：
    关闭所述源基站预设RAR所在窄带上的调度业务后，启动定时器，在定时器计时达到所述预定时间后，重启所述RAR所在窄带上的调度业务。
  3. 如权利要求1或2所述的方法，其中，
    所述预定时间小于预设切换小区时间。
  4. 如权利要求1或2所述的方法，其中，
    所述切换请求响应中携带有所述终端接入所述目标基站RAR所在的窄带的位置。
  5. 如权利要求1或2所述的方法，其中，
    所述切换命令中携带有所述目标基站信息和所述终端接入所述目标基站预设RAR所在的窄带的位置。
  6. 一种终端切换小区的装置，应用于源基站，包括：
    接收单元，用于接收目标基站发来的切换请求响应；
    处理单元，用于在所述接收单元接收到所述目标基站发来的切换请求响应后，向切换小区内的终端发送切换命令，并关闭所述源基站预设随机接入响应RAR所在窄带上的调度业务，在预定时间后，重启所述预设RAR所在窄带上的调度业务；
    其中，所述预设RAR所在窄带为目标基站与所述终端RAR所在的窄带。
  7. 如权利要求6所述的装置，其中，
    所述处理单元，还用于关闭所述源基站预设RAR所在窄带上的调度业务后，启动定时器，在定时器计时达到所述预定时间后，重启所述RAR所在窄带上的调度业务。
  8. 如权利要求6或7所述的装置，其中，
    所述预定时间小于预设切换小区时间。
  9. 一种计算机可读存储介质，其上存储有计算机程序，其中，所述计算机程序被处 理器执行时实现如权利要求1至5中任一项所述的终端切换小区的方法的步骤。
  10. 一种基站，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，其中，所述计算机程序被所述处理器执行时实现如权利要求1至5中任一项所述的方法的步骤。
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