WO2020150883A1 - 小区的切换方法、装置、设备和存储介质 - Google Patents

小区的切换方法、装置、设备和存储介质 Download PDF

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Publication number
WO2020150883A1
WO2020150883A1 PCT/CN2019/072620 CN2019072620W WO2020150883A1 WO 2020150883 A1 WO2020150883 A1 WO 2020150883A1 CN 2019072620 W CN2019072620 W CN 2019072620W WO 2020150883 A1 WO2020150883 A1 WO 2020150883A1
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Prior art keywords
smtc
cell
target cell
ssb
time interval
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PCT/CN2019/072620
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English (en)
French (fr)
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文会
东宁
薄红瑞
邢庆锋
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华为技术有限公司
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Priority to CN201980088161.1A priority Critical patent/CN113302975B/zh
Priority to PCT/CN2019/072620 priority patent/WO2020150883A1/zh
Publication of WO2020150883A1 publication Critical patent/WO2020150883A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • This application relates to communication technology, and in particular to a cell handover method, device, equipment, and storage medium.
  • mobility management In order to ensure the connection between the network and the user equipment (User Equipment, UE), the related processes involved are not interrupted due to the movement of the UE, which is collectively referred to as mobility management.
  • mobility management In the idle state, mobility management mainly refers to the process of cell selection/reselection, and in the connected state, mobility management mainly refers to cell handover. Whether it is cell selection/reselection or handover, it is based on the measurement result.
  • the signal used for measurement and synchronization always exists.
  • the signal used for measurement and synchronization does not always exist, but periodically.
  • the configuration of measurement signals in 5G mode is called measurement timing configuration (SSB measurement timing configuration, SMTC).
  • SSB measurement timing configuration SMTC
  • the UE only needs to perform cell search and SSB measurement within the period of the SMTC configuration.
  • the network side may configure At most two SMTCs, the two SMTCs use the same length and time offset, but the period can be different.
  • the network side configures only one SMTC for each frequency point.
  • the target cell of the handover may be known or unknown.
  • the cell needs to be done first Search and reconciliation physical broadcast channel (Physical Broadcast Channel, PBCH), to obtain the timing information of the target cell.
  • PBCH Physical Broadcast Channel
  • cell search and PBCH resolution of unknown cells are performed according to the period of SMTC.
  • This application provides a cell handover method, device, device, and storage medium, which are used to provide a handover solution to shorten the search time of the cell and reduce the access delay of the handover.
  • the first aspect of the present application provides a cell handover method, and the method includes:
  • the target cell is configured with SMTC, determine the first period according to the SMTC of the target cell, and the first period is less than or equal to the maximum time interval of the synchronization signal block SSB;
  • the terminal device after determining that the terminal device needs to switch to the target cell, it first determines whether the target cell is configured with SMTC. If the target cell has been configured with SMTC, it determines the first cycle of cell search and de-PBCH according to the SMTC of the target cell , The first period is less than the maximum time interval of SSB, and then SSB search and PBCH resolution are performed according to the first period to switch to the target cell, considering the period of SMTC, to avoid wasting a long time for cell search and shorten the total handover delay , Improve the performance of cell handover.
  • the determining the first period according to the SMTC of the target cell includes:
  • the measurement period indicated by the SMTC of the target cell is less than or equal to the maximum time interval of the SSB, use the measurement period indicated by the SMTC of the target cell as the first period;
  • the maximum time interval of the SSB is taken as the first cycle.
  • this solution is that in the specific implementation of determining the cell search and de-PBCH cycle, if the configured SMTC cycle is less than the maximum time interval of the SSB, the cell search is directly performed according to the SMTC cycle, and if the configured SMTC cycle is greater than the SSB cycle The maximum time interval can be searched according to the maximum time interval of the SSB as the cycle, thereby shortening the total handover delay of the terminal equipment.
  • the SMTC of the target cell includes a measurement period, an offset position, and a duration.
  • the method further includes:
  • network equipment can configure the SMTC of the target cell through system messages.
  • the optional network equipment can also configure the SMTC of the target cell during the data exchange process of the terminal equipment, or in other downlink messages, and this solution does not limit it.
  • the method further includes:
  • SSB-based cell search and PBCH resolution are performed according to the maximum time interval of the SSB.
  • the maximum time interval of the SSB is 20 ms.
  • the cell currently accessed by the terminal device and the target cell may be cells of the same frequency, different frequency cells, or different system cells.
  • this application provides a cell handover device, including:
  • a receiving module configured to receive a handover request, where the handover request is used to instruct the terminal device to switch from the currently accessed cell to the target cell;
  • a processing module configured to determine a first period according to the SMTC of the target cell if the SMTC is configured in the target cell, where the first period is less than or equal to the maximum time interval of the synchronization signal block SSB;
  • the processing module is further configured to perform an SSB-based cell search and PBCH de-PBCH process according to the first cycle, and switch to the target cell.
  • processing module is specifically used for:
  • the measurement period indicated by the SMTC of the target cell is less than or equal to the maximum time interval of the SSB, use the measurement period indicated by the SMTC of the target cell as the first period;
  • the maximum time interval of the SSB is taken as the first cycle.
  • the SMTC of the target cell includes a measurement period, an offset position, and a duration.
  • the receiving module is further configured to receive system information sent by a network device, where the system information carries the SMTC of the target cell.
  • processing module is also used to:
  • SSB-based cell search and PBCH resolution are performed according to the maximum time interval of the SSB.
  • the maximum time interval of the SSB is 20 ms.
  • the present application provides a terminal device, including: a memory, a processor, a receiver, and a computer program.
  • the computer program is stored in the memory, and the processor runs the computer program to execute any of the first aspect.
  • a cell handover method in an implementation manner.
  • the present application provides a storage medium including: a readable storage medium and a computer program, the computer program being used to implement the cell handover method of any implementation manner of the first aspect.
  • the present application provides a program product.
  • the program product includes a computer program.
  • the computer program is stored in a readable storage medium.
  • At least one processor of a terminal device can read the computer program from the readable storage medium.
  • a processor executes the computer program to cause the terminal device to execute the following methods:
  • the handover request determine whether the target cell is configured with a measurement timing configuration SMTC;
  • the target cell is configured with SMTC, determine the first period according to the SMTC of the target cell;
  • the present application provides a chip that can be applied to a terminal device.
  • the chip includes: at least one communication interface, at least one processor, at least one memory, and the communication interface, the memory, and the processor pass through a bus. Interconnected, the processor calls the computer program stored in the memory to execute:
  • the target cell is configured with SMTC, determine the first period according to the SMTC of the target cell;
  • the above-mentioned chip When the above-mentioned chip is applied to a terminal device, it can also implement the cell handover method provided in any specific implementation manner of the first aspect.
  • This application provides a cell handover method, device, equipment, and storage medium.
  • a terminal device After receiving a handover request indicating a cell handover, a terminal device determines whether the target cell indicated by the handover request is configured with SMTC. If the target cell is configured with SMTC, it will The SMTC determines the first cycle of the SSB-based cell search and de-PBCH process, and the first cycle is less than or equal to the maximum time interval of the SSB, and then performs the cell search and de-PBCH process according to the first cycle to switch the terminal device to the target cell.
  • the cell search period is less than or equal to the maximum time interval of the SSB, which avoids wasting a long time in cell search, shortens the total handover delay, and improves the efficiency of cell handover.
  • Fig. 1 is a schematic diagram of searching for unknown cells according to the period indicated by SMTC;
  • Figure 2 is a schematic diagram of a specific structure of the terminal device provided by this application.
  • FIG. 3 is a schematic diagram of a specific application scenario of the cell handover method provided by this application.
  • FIG. 5 is a schematic diagram of cell search time in the cell handover method provided by this application.
  • Embodiment 1 of a cell handover device provided by this application.
  • FIG. 7 is a schematic diagram of another structure of the terminal device provided by this application.
  • Figure 1 is a schematic diagram of unknown cell search according to the period indicated by SMTC.
  • SMTC cell search and solution physical broadcast channel of unknown cells are performed according to the SMTC cycle. , PBCH).
  • PBCH physical broadcast channel of unknown cells
  • 1 SMTC search time is required; for cells with different frequencies without saturation, 3 SMTC search times are required; the period of SMTC may be 5, 10, 20, 40, 80, 160ms.
  • the SMTC period is greater than 20 ms, (for example, 40 ms, 80 ms, and 160 ms), it is not an optimal solution to search for cells according to the SMTC period. Because according to the agreement, the maximum time interval of SSB is 20ms.
  • the SMTC cycle is 80ms and the duration is 5ms as an example to illustrate the time required for the existing solution cell search protocol:
  • N+80ms, N+160ms, and N+240ms are the SMTC measurement time windows.
  • the present application provides a cell handover method to speed up cell search and shorten handover time delay.
  • the network elements involved in the cell handover method provided by the body include network equipment and user terminals, also called terminal equipment, or user equipment.
  • the network device refers to a device with a wireless resource management function that can communicate with terminal devices, or act as a central controller to assist in direct communication between terminal devices, such as a base station.
  • the network equipment in this solution can be a base station (Base Transceiver Station, BTS) in Global System of Mobile Communications (GSM) or Code Division Multiple Access (CDMA). It can also be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (Evolutional NodeB, eNB or eNodeB) in LTE, or a relay station Or an access point, or a base station in a 5G network, or a base station in other network systems in the future, etc., which are not limited here.
  • BTS Base Transceiver Station
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • NodeB, NB Wideband Code Division Multiple Access
  • Evolutional NodeB, eNB or eNodeB evolved base station
  • the terminal device may be a wireless terminal or a wired terminal.
  • the wireless terminal may be a device that provides voice and/or other service data connectivity to users, a handheld device with wireless connection function, or other processing devices connected to a wireless modem.
  • a wireless terminal can communicate with one or more core networks via a radio access network (Radio Access Network, RAN for short).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a mobile phone with a mobile terminal.
  • Computers for example, can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal can also be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), mobile station (Mobile), remote station (Remote Station), remote terminal (Remote Terminal), connection Access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), and user equipment (User Device or User Equipment) are not limited here.
  • FIG. 2 is a schematic diagram of a specific structure of the terminal device provided by this application. As shown in Figure 2, it is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal device includes a processor, a memory, and a radio frequency. Circuits, antennas and input and output devices.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • only one memory and processor are shown in FIG. 2. In actual terminal equipment products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device
  • the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit A and a processing unit B.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit A can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit A as the sending unit, that is, the transceiver unit A includes the receiving unit and the sending unit.
  • the transceiver unit can sometimes be called a transceiver, transceiver, or transceiver circuit, etc.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • FIG 3 is a schematic diagram of a specific application scenario of the cell handover method provided by this application.
  • this scenario involves terminal equipment and base stations, that is, the network equipment is a base station.
  • the following uses this scenario as an example to provide this application
  • the cell handover method will be described.
  • the cell currently accessed by the terminal device may be a 2G, 3G, 4G, or 5G cell, and the target cell after the handover is a 5G cell.
  • FIG. 4 is a flowchart of Embodiment 1 of the cell handover method provided by this application. As shown in Figure 4, the cell handover method provided in this embodiment specifically includes the following steps:
  • S101 Receive a handover request, where the handover request is used to instruct a terminal device to switch from a currently accessed cell to a target cell.
  • SSB measurement timing configuration SSB measurement timing configuration
  • SMTC includes the period, length, and offset of the SMTC measurement time window.
  • the network side When the network side determines the cell handover of the terminal equipment based on the location of the terminal equipment, signal measurement results or other information, it can send a handover request to the terminal equipment.
  • the terminal equipment can receive an instruction to switch from the current cell to The handover request of the target cell triggers the cell handover process.
  • S102 If the SMTC is configured in the target cell, determine the first period according to the SMTC of the target cell, and the first period is less than or equal to the maximum time interval of the synchronization signal block SSB.
  • the terminal device After the terminal device receives the handover request to trigger the cell handover, it needs to determine whether the target cell is configured with an SMTC, so as to determine the cell search cycle according to the SMTC. In a specific implementation manner, if the terminal device has received the SMTC configured for the target cell, it will be stored according to the identification information of the target cell, and it can be queried and determined, or queried from the protocol. If the terminal device determines that the target cell is configured with SMTC, it needs to determine the first cycle of cell search and PBCH resolution based on the SMTC of the target cell. Otherwise, if the terminal device determines that the target cell is not configured with SMTC, it needs to use other methods To determine the first cycle for cell search and PBCH resolution.
  • the terminal device determines the specific implementation of the first cycle according to the SMTC of the target cell as:
  • the measurement period indicated by the SMTC of the target cell is less than or equal to the maximum time interval of the SSB, then the measurement period indicated by the SMTC of the target cell is taken as the first period.
  • the maximum time interval of the SSB is taken as the first cycle.
  • this solution is that in the specific implementation of determining the first cycle of cell search and PBCH resolution, if the configured SMTC cycle is less than the maximum time interval of the SSB, then the cell search is directly performed according to the SMTC cycle. If the configured SMTC cycle is greater than The maximum time interval of the SSB can be searched according to the maximum time interval of the SSB as the cycle, thereby shortening the total handover delay of the terminal equipment.
  • the terminal device needs to obtain the SMTC of the target cell before it can determine the first cycle in the foregoing manner.
  • the manner in which the terminal device obtains the SMTC of the target cell includes at least the following:
  • the terminal device receives the system information sent by the network device, and the system information carries the SMTC corresponding to the target cell.
  • the meaning of this solution is that the network side configures the measurement timing configuration of the target cell through system information or other high-level signaling.
  • the specific message carrying the measurement timing configuration can be a system message or a reconfiguration message, etc. This solution does not impose restrictions.
  • the second way is to obtain the measurement timing configuration corresponding to the target cell specified in the protocol
  • the meaning of this scheme is that the SMTC corresponding to the target cell is specified in the protocol, that is, written in the protocol, and the terminal device only needs to read the SMTC from the protocol during use.
  • the terminal device in addition to obtaining from the protocol or configuring on the network side, the terminal device itself selects an appropriate measurement period, offset position, and duration for the optimization scheme, obtains the SMTC, and subsequently searches and switches the target cell according to the SMTC.
  • the SMTC of the target cell at least includes information such as measurement period, offset position, and duration.
  • S103 Perform an SSB-based cell search and PBCH de-PBCH process according to the first cycle, and switch to the target cell.
  • the terminal equipment After determining the first cycle of the cell search and de-PBCH process according to the above-mentioned scheme, the terminal equipment will perform the SSB-based cell search according to the first cycle and perform the PBCH de-PBCH process to switch to the target cell. , That is, access to the target cell, and the target cell serves the terminal equipment.
  • the terminal device determines that the target cell is not configured with SMTC, in order to achieve cell handover quickly, it can directly use the maximum realization interval of SSB to perform cell search and de-PBCH process, and switch to the target cell.
  • the cell refers to the access target cell, and the target cell serves the terminal equipment.
  • the terminal device determines whether the target cell indicated by the handover request is configured with SMTC. If the target cell is configured with SMTC, it determines the SSB-based The first cycle of the cell search and de-PBCH process, the first cycle is less than or equal to the maximum time interval of the SSB, and then the cell search and de-PBCH process is performed according to the first cycle, and the terminal device is handed over to the target cell. The process is determined based on SMTC The cell search cycle is less than or equal to the maximum time interval of the SSB to avoid wasting a long time for cell search, shorten the total handover delay, and improve the efficiency of cell handover.
  • the base station configures handover for the terminal equipment, and the SMTC period of the target cell configured for handover is greater than 20ms.
  • the base station configures handover for the terminal equipment without configuring the target cell SMTC for handover.
  • the maximum time interval of the SSB specified by the protocol is 20ms. Therefore, in the specific implementation of the above embodiment, if the target cell of the handover is configured with SMTC, if the configured SMTC period is less than or equal to 20ms, the protocol will be performed according to the SMTC period.
  • Cell search and resolution PBCH that is, the first cycle is less than 20ms; if the configured SMTC cycle is greater than 20ms, the cell search and resolution PBCH cycle is 20ms, that is, the first cycle is 20ms; if the target cell of handover is not configured with SMTC, then Perform cell search and resolve PBCH at a period of 20 ms to switch to the target cell.
  • the following describes the cell search time in the cell handover method provided by this application by taking the period indicated by the SMTC of the target cell of 80 ms, the signal duration of 5 ms, and the duration of 5 ms as an example.
  • Figure 5 is a schematic diagram of the cell search time in the cell handover method provided by this application. As shown in Figure 5, suppose that at the N+20ms time, the terminal device receives the handover request. 240ms is the measurement time window of SMTC. According to the above-mentioned protocol, the maximum time interval of the SSB is 20ms. According to this solution, the period of cell search and PBCH resolution can be determined to be 20ms.
  • the search time is 20ms.
  • the cell search and PBCH resolution is performed at a period of 20 ms, which can speed up the cell search and PBCH resolution process and shorten the total handover delay. It also reduces the interruption time of user data.
  • Fig. 6 is a schematic structural diagram of Embodiment 1 of a cell handover device provided by this application; as shown in Fig. 6, the cell handover device 10 includes:
  • the receiving module 11 is configured to receive a handover request, where the handover request is used to instruct the terminal device to switch from the currently accessed cell to the target cell;
  • the processing module 12 is configured to determine a first period according to the SMTC of the target cell if the SMTC is configured in the target cell, where the first period is less than or equal to the maximum time interval of the synchronization signal block SSB;
  • the processing module 12 is further configured to perform an SSB-based cell search and PBCH de-PBCH process according to the first cycle, and switch to the target cell.
  • the cell handover device provided in this embodiment is used to implement the technical solution of any of the foregoing method embodiments. Its implementation principles and technical effects are similar.
  • the device determines the target of the handover request indication Whether the cell is configured with SMTC, if the target cell is configured with SMTC, the first cycle of the SSB-based cell search and de-PBCH process is determined according to the SMTC, the first cycle is less than or equal to the maximum time interval of the SSB, and then the first cycle Perform cell search and de-PBCH process to switch the terminal equipment to the target cell.
  • the processing module 12 is specifically configured to:
  • the measurement period indicated by the SMTC of the target cell is less than or equal to the maximum time interval of the SSB, use the measurement period indicated by the SMTC of the target cell as the first period;
  • the maximum time interval of the SSB is taken as the first cycle.
  • the SMTC of the target cell includes a measurement period, an offset position, and a duration.
  • the receiving module 11 is further configured to receive system information sent by a network device, and the system information carries the SMTC of the target cell.
  • processing module 12 is further configured to:
  • SSB-based cell search and PBCH resolution are performed according to the maximum time interval of the SSB.
  • the maximum time interval of the SSB is 20 ms.
  • FIG. 7 is a schematic diagram of another structure of the terminal device provided by this application. As shown in Figure 7, the terminal equipment includes:
  • the memory, the processor, the receiver, and the computer program may also include a transmitter, the computer program is stored in the memory, and the processor runs the computer program to execute the cell handover method provided in any of the foregoing embodiments.
  • the memory may be integrated inside the processor.
  • the number of processors is at least one, which is used to execute execution instructions stored in the memory, that is, a computer program.
  • the present application also provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement the cell measurement method provided in any of the foregoing method embodiments.
  • the present application also provides a program product.
  • the program product includes a computer program.
  • the computer program is stored in a readable storage medium.
  • At least one processor of a terminal device can read the computer program from the readable storage medium.
  • At least one processor Executing the computer program enables the user equipment to implement the cell handover method provided by any of the foregoing method embodiments.
  • the chip includes: at least one communication interface, at least one processor, the processor is coupled to the memory via the communication interface, and the processor calls the The computer program stored in the memory is used to execute the cell handover method provided by any of the foregoing method embodiments.
  • the memory can be provided outside the chip or integrated in the chip.
  • the communication interface may be various interfaces that enable the processor to access the memory, such as an input interface, a processing device, and an output interface, and may also be a universal flash storage (UFS) interface, a fast peripheral component interconnect express, PCIe) interface, etc.
  • UFS universal flash storage
  • PCIe fast peripheral component interconnect express
  • the processor can be a central processing unit (English: Central Processing Unit, abbreviated as: CPU), or other general-purpose processors or digital signal processors (English: Digital Signal Processor, abbreviated as : DSP), Application Specific Integrated Circuit (English: Application Specific Integrated Circuit, ASIC for short), etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in this application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • All or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps including the foregoing method embodiments; and the foregoing memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state drives, magnetic tapes (English: magnetic tape), floppy disks (English: floppy disk), optical discs (English: optical disc) and any combination thereof.

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Abstract

一种小区的切换方法、装置、设备和存储介质。该方法包括：接收切换请求，所述切换请求用于指示终端设备从当前接入的小区切换至目标小区（S101）；若所述目标小区配置了测量定时配置SMTC，则根据所述目标小区的SMTC确定第一周期，所述第一周期小于或等于同步信号块SSB的最大时间间隔（S102）；根据所述第一周期进行基于SSB的小区搜索和解PBCH过程，切换至所述目标小区（S103）。该方法考虑SMTC的周期，避免浪费很长的时间进行小区搜索，缩短总的切换时延，提升小区切换的性能。

Description

小区的切换方法、装置、设备和存储介质 技术领域
本申请涉及通信技术，尤其涉及一种小区的切换方法、装置、设备和存储介质。
背景技术
为了保证网络与用户设备(User Equipment，UE)之间连接，不因UE的移动而中断所涉及到的相关过程的统称移动性管理。在空闲态下，移动性管理主要指的是小区选择/重选(cell selection/reselection)的过程，在连接态下，移动性管理主要指的是小区切换(handover)。不论是小区选择/重选还是切换，都基于测量的结果。
对于2G、3G和4G模式，用于测量和同步的信号一直存在。而在5G模式，用于测量和同步的信号不是一直存在，而是周期存在。5G模式的测量信号的配置我们称之为测量定时配置(SSB measurement timing configuration，SMTC)，UE只需要在该在SMTC配置的周期内进行小区搜索以及SSB测量，对于同频测量，网络侧可能配置至多两个SMTC，两个SMTC使用同样的长度和时间偏移，而周期可以不同。对于异频测量，网络侧为每一个频点只配置一个SMTC。
UE从2G、3G、4G或5G切换到5G时候，切换的目标小区可能是已知的，也可能是未知的，对于切换到未知的5G小区场景(也称为盲切换)，需要先做小区搜索和解物理广播信道(Physical Broadcast Channel，PBCH)，获取目标小区的定时信息。在进行小区切换的时候，如果配置了SMTC，则按照SMTC的周期进行未知小区的小区搜索和解PBCH。
然而，协议中规定对于没有饱和的同频小区，需要一个SMTC的搜索时间去搜索SSB，对于没有饱和的异频小区，需要三个SMTC的搜索时间搜索SSB。同时，协议中规定SSB的最大的时间间隔是20ms，因此对于SMTC大于20ms的场景，按照SMTC周期进行小区的搜索，需要比较长的时间，导致切换的接入时延较长。
发明内容
本申请提供一种小区的切换方法、装置、设备和存储介质，用于提供一种的切换方案，缩短小区的搜索时间，降低切换的接入时延。
本申请第一方面提供一种小区的切换方法，所述方法包括：
接收切换请求，所述切换请求用于指示终端设备从当前接入的小区切换至目标小区；
若所述目标小区配置了SMTC，则根据所述目标小区的SMTC确定第一周期，所述第一周期小于或等于同步信号块SSB的最大时间间隔；
根据所述第一周期进行基于SSB的小区搜索和解PBCH过程，切换至所述目标小区。
在本方案中，终端设备在确定需要切换到目标小区之后，首先确定目标小区是否配置 了SMTC，如果该目标小区已经配置了SMTC，则根据该目标小区的SMTC确定小区搜索和解PBCH的第一周期，该第一周期小于SSB的最大时间间隔，然后根据该第一周期进行SSB搜索和解PBCH，切换到目标小区，考虑SMTC的周期，避免浪费很长的时间进行小区搜索，缩短总的切换时延，提升小区切换的性能。
在上述方案的一种具体实现中，所述根据所述目标小区的SMTC确定第一周期，包括：
若所述目标小区的SMTC指示的测量周期小于或等于所述SSB的最大时间间隔，则将所述目标小区的SMTC指示的所述测量周期作为所述第一周期；
若所述目标小区的SMTC指示的测量周期大于所述SSB的最大时间间隔，则将所述SSB的最大时间间隔作为所述第一周期。
该方案的含义是，确定小区搜索和解PBCH的周期的具体实现方式中，如果配置的SMTC的周期小于SSB的最大时间间隔，则直接按照SMTC周期进行小区搜索，如果配置的SMTC的周期大于SSB的最大时间间隔，则按照该SSB的最大时间间隔作为周期进行搜索即可，从而缩短终端设备总的切换时延。
在上述方案的一种具体实现中，所述目标小区的SMTC包括测量周期、偏移位置以及持续时间。
在上述方案的一种具体实现中，所述方法还包括：
接收网络设备发送的系统信息，所述系统信息中携带所述目标小区的所述SMTC。
该方案的含义是网络设备可以通过系统消息配置目标小区的SMTC。可选的网络设备也可以在于终端设备进行数据交互过程中，或者其他下行消息中对目标小区的SMTC进行配置，本方案不做限制。
在上述任一方案的基础上，所述方法还包括：
若所述目标小区没有配置SMTC，则根据SSB的最大时间间隔进行基于SSB的小区搜索和解PBCH。
可选的，所述SSB的最大时间间隔为20ms。
可选的，终端设备当前接入的小区与目标小区可以是同频的小区，也可以是异频小区，也可以是异系统小区。
第二方面，本申请提供一种小区的切换装置，包括：
接收模块，用于接收切换请求，所述切换请求用于指示终端设备从当前接入的小区切换至目标小区；
处理模块，用于若所述目标小区配置了SMTC，则根据所述目标小区的SMTC确定第一周期，所述第一周期小于或等于同步信号块SSB的最大时间间隔；
所述处理模块还用于根据所述第一周期进行基于SSB的小区搜索和解PBCH过程，切换至所述目标小区。
可选的，所述处理模块具体用于：
若所述目标小区的SMTC指示的测量周期小于或等于SSB的最大时间间隔，则将所述目标小区的SMTC指示的所述测量周期作为所述第一周期；
若所述目标小区的SMTC指示的测量周期大于所述SSB的最大时间间隔，则将所述SSB的最大时间间隔作为所述第一周期。
可选的，所述目标小区的SMTC包括测量周期、偏移位置以及持续时间。
可选的，所述接收模块还用于接收网络设备发送的系统信息，所述系统信息中携带所述目标小区的所述SMTC。
可选的，所述处理模块还用于：
若所述目标小区没有配置SMTC，则根据所述SSB的最大时间间隔进行基于SSB的小区搜索和解PBCH。
可选的，所述SSB的最大时间间隔为20ms。
第三方面，本申请提供一种终端设备，包括：存储器、处理器、接收器以及计算机程序，所述计算机程序存储在所述存储器中，所述处理器运行所述计算机程序执行第一方面任一实现方式中的小区的切换方法。
第四方面，本申请提供一种存储介质，包括：可读存储介质和计算机程序，所述计算机程序用于实现第一方面任一实现方式的小区的切换方法。
第五方面，本申请提供一种程序产品，该程序产品包括计算机程序，该计算机程序存储在可读存储介质中，终端设备的至少一个处理器可以从可读存储介质读取该计算机程序，至少一个处理器执行该计算机程序使得终端设备执行如下方法：
接收切换请求，所述切换请求用于指示所述终端设备从当前接入的小区切换至目标小区；
根据所述切换请求，确定所述目标小区是否配置了测量定时配置SMTC；
若所述目标小区配置了SMTC，则根据所述目标小区的SMTC确定第一周期；
根据所述第一周期进行基于同步信号块SSB的小区搜索和解PBCH过程，切换至所述目标小区。
上述程序产品被处理器执行时，还能够实现第一方面任一具体实现方式提供的小区的切换方法。
第六方面，本申请提供一种芯片，所述芯片可应用于终端设备，所述芯片包括：至少一个通信接口，至少一个处理器，至少一个存储器，所述通信接口、存储器和处理器通过总线互联，所述处理器调用所述存储器中存储的计算机程序，以执行：
接收切换请求，所述切换请求用于指示所述终端设备从当前接入的小区切换至目标小区；
若所述目标小区配置了SMTC，则根据所述目标小区的SMTC确定第一周期；
根据所述第一周期进行基于同步信号块SSB的小区搜索和解PBCH过程，切换至所述目标小区。
上述芯片应用在终端设备中时，还能够实现第一方面任一具体实现方式提供的小区的切换方法。
本申请提供小区的切换方法、装置、设备和存储介质，终端设备在接收到指示小区切换的切换请求之后，确定切换请求指示的目标小区是否配置了SMTC，如果目标小区配置了SMTC，则根据该SMTC确定基于SSB的小区搜索和解PBCH过程的第一周期，该第一周期小于或等于SSB的最大时间间隔，然后按照该第一周期进行小区搜索和解PBCH过程，将终端设备切换至目标小区，该过程中基于SMTC确定小区搜索的周期是小于或等于SSB的最大时间间隔的，避免浪费很长的时间进行小区搜索，缩短总的切换时延，提升小区切换的效率。
附图说明
图1为按照SMTC指示的周期进行未知小区搜索的示意图；
图2为本申请提供的终端设备的一种具体结构示意图；
图3为本申请提供的小区的切换方法的一种具体应用场景示意图；
图4为本申请提供的小区的切换方法实施例一的流程图；
图5为本申请提供的小区的切换方法中小区搜索时间示意图；
图6为本申请提供的小区的切换装置实施例一的结构示意图；
图7为本申请提供的终端设备的另一种结构示意图。
具体实施方式
由背景技术的内容可知，对于切换到未知的5G小区场景，需要先做小区搜索和解PBCH，获取目标小区的定时信息，包括系统帧号、子帧号和slot号等。
由于5G小区信号的周期性，需要在特定的测量时间窗内测量5G小区；如果在该时间窗外测量5G小区，就测量不到5G小区，从而浪费测量时间。
图1为按照SMTC指示的周期进行未知小区搜索的示意图，如图1所示，在进行切换的时候，如果配置了SMTC，按照SMTC的周期进行未知小区的小区搜索和解物理广播信道(Physical Broadcast Channel，PBCH)。根据协议对于没有饱和的同频小区，需要1个SMTC的搜索时间；而对于没有饱和的异频小区，需要3个SMTC的搜索时间；SMTC的周期可能是5、10、20、40、80、160ms。
对于SMTC周期大于20ms的场景，(比如40ms、80ms和160ms)，按照SMTC周期进行小区搜索不是最优的方案。因为根据协议，SSB的最大时间间隔是20ms。
图1中以SMTC周期80ms，时长5ms为例，说明现有的方案小区搜索协议需要的时间：
假设在第N+20ms的时刻，收到切换请求，在N+80ms、N+160ms、N+240ms为SMTC的测量时间窗。
假设同频需要时间1个smtc：90-20＝70ms。
假设异频需要时间3个smtc：250-20＝230ms。
基于上述方案可知，如果按照SMTC的配置周期进行小区搜索和解PBCH，需要的时候比较长，影响切换的接入时延。
针对上述问题，本申请提供一种小区的切换方法，以加快小区搜索，缩短切换时延。
本身体提供的小区的切换方法涉及到的网元包括网络设备和用户的终端、也称为终端设备，或者用户设备。该网络设备指的是具有无线资源管理功能的设备，能够与终端设备进行通信，或者作为中央控制器协助终端设备之间进行直接通信，例如：基站。
应理解，本方案中的网络设备可以是全球移动通讯(Global System of Mobile communication，简称GSM)或码分多址(Code Division Multiple Access，简称CDMA)中的基站(Base Transceiver Station，简称BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，简称WCDMA)中的基站(NodeB，简称NB)，还可以是LTE 中的演进型基站(Evolutional Node B，简称eNB或eNodeB)，或者中继站或接入点，或者5G网络中的基站，或者未来其他的网络系统中的基站等等，在此并不限定。
终端设备可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，简称RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，简称PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，简称SIP)话机、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字助理(Personal Digital Assistant，简称PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。
图2为本申请提供的终端设备的一种具体结构示意图，如图2所示，便于理解和图示方便，图1中，终端设备以手机作为例子，该终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端你设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到用户设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图2中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。如图2所示，终端设备包括收发单元A和处理单元B。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元A中用于实现接收功能的器件视为接收单元，将收发单元A中用于实现发送功能的器件视为发送单元，即收发单元A包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
图3为本申请提供的小区的切换方法的一种具体应用场景示意图，如图2所示，该场景下涉及终端设备以及基站，即网络设备为基站，下面以该场景为例，对本申请提供的小区的切换方法进行说明。该终端设备当前接入的小区可以是2G、3G、4G、5G小区，切换后的目标小区为5G小区。
在上述场景的基础上，下面通过几个具体实施方式对本申请提供的小区的切换方法。
图4为本申请提供的小区的切换方法实施例一的流程图。如图4所示，本实施例提供的小区的切换方法具体包括以下步骤：
S101：接收切换请求，切换请求用于指示终端设备从当前接入的小区切换至目标小区。
在本步骤中，对于5G小区或者其他测量信号不是一直存在，而是周期存在的模式，可以称为SSB测量定时配置(SSB measurement timing configuration，SMTC)。一般来说SMTC包括SMTC的测量时间窗的周期、长度、和偏移量。
网络侧在根据终端设备的位置，信号测量结果或者其他信息确定将终端设备进行小区切换时，可向终端设备发送切换请求，相对应的，终端设备则可接收指示从当前接入的小区切换到目标小区的切换请求，触发小区切换过程。
S102：若目标小区配置了SMTC，则根据目标小区的SMTC确定第一周期，第一周期小于或等于同步信号块SSB的最大时间间隔。
在本步骤中，终端设备接收到切换请求触发小区切换后，需要确定目标小区是否配置了SMTC，以便根据该SMTC确定进行小区搜索的周期。一种具体的实现方式中，如果终端设备已经收到了为目标小区配置了SMTC，则会根据目标小区的标识信息进行存储，查询确定即可，或者从协议中查询即可。如果终端设备确定出目标小区配置了SMTC，则需要根据该目标小区的SMTC确定进行小区搜索和解PBCH的第一周期，否则，如果终端设备确定出目标小区未配置SMTC，则也需要通过别的方式来确定进行小区搜索和解PBCH的第一周期。
在该方案的具体实现中，终端设备根据目标小区的SMTC确定第一周期的具体实现为：
若所述目标小区的SMTC指示的测量周期小于或等于SSB的最大时间间隔，则将目标小区的SMTC指示的所述测量周期作为第一周期。
若所述目标小区的SMTC指示的测量周期大于所述SSB的最大时间间隔，则将所述SSB的最大时间间隔作为所述第一周期。
该方案的含义是，确定小区搜索和解PBCH的第一周期的具体实现方式中，如果配置的SMTC的周期小于SSB的最大时间间隔，则直接按照SMTC周期进行小区搜索，如果配置的SMTC的周期大于SSB的最大时间间隔，则按照该SSB的最大时间间隔作为周期进行搜索即可，从而缩短终端设备总的切换时延。
在上述方案中，终端设备需要获取到该目标小区的SMTC，才能按照上述方式进行第一周期的确定，终端设备获取目标小区的SMTC的的方式至少包括以下几种：
第一种方式，终端设备接收所述网络设备发送的系统信息，所述系统信息中携带所述目标小区对应的SMTC。
该方案的含义是网络侧通过系统信息或者其他高层信令配置对目标小区的测量定时 配置，具体携带该测量定时配置的消息可以系统消息，也可以是重配置消息等，本方案不做限制。
第二种方式，获取协议中规定的所述目标小区对应的所述测量定时配置；
该方案的含义是在协议中对目标小区对应的SMTC进行规定，即写在协议中，终端设备在使用过程中，只需要从协议中读取该SMTC即可。
可选的，除了从协议中获取或者网络侧配置，终端设备自己为了优化方案选择合适的测量周期，偏移位置以及持续时间，得到该SMTC，后续按照该SMTC进行目标小区的搜索和切换。
在该方案中，目标小区的SMTC至少包括测量周期、偏移位置以及持续时间等信息。
S103：根据第一周期进行基于SSB的小区搜索和解PBCH过程，切换至目标小区。
在本步骤中，终端设备按照上述的方案，确定出了进行小区搜索和解PBCH过程的第一周期之后，则按照该第一周期进行基于SSB的小区搜索，并进行解PBCH过程，切换至目标小区，即接入目标小区，以及目标小区为终端设备进行服务。
在该方案的另一种情况下，如果终端设备确定出目标小区未配置SMTC，则为了能够较快的实现小区的切换，可以直接使用SSB的最大实现间隔进行小区搜索和解PBCH过程，切换至目标小区，即接入目标小区，以及目标小区为终端设备进行服务。
本实施例提供的小区的切换方法，终端设备在接收到指示小区切换的切换请求之后，确定切换请求指示的目标小区是否配置了SMTC，如果目标小区配置了SMTC，则根据该SMTC确定基于SSB的小区搜索和解PBCH过程的第一周期，该第一周期小于或等于SSB的最大时间间隔，然后按照该第一周期进行小区搜索和解PBCH过程，将终端设备切换至目标小区，该过程中基于SMTC确定小区搜索的周期是小于或等于SSB的最大时间间隔的，避免浪费很长的时间进行小区搜索，缩短总的切换时延，提升小区切换的效率。
以网络设备是基站为例，上述实施例提供的小区的切换方案具体应用时，基站给终端设备配置切换，配置切换的目标小区SMTC周期大于20ms，通过确定两条空口消息的时间间隔，即带切换命令的重配消息到发起pramble的时间间隔，可以判断是否使用上述方案进行小区切换。基站给终端设备配置切换，没有配置切换的目标小区SMTC，通过确定两条空口消息的时间间隔，即带切换命令的重配消息到发起pramble的时间间隔，可以判断是否使用上述方案。
目前，协议规定的SSB的最大时间间隔是20ms，因此在上述实施例的具体实现中，如果，如果切换的目标小区配置了SMTC，如果配置的SMTC周期小于等于20ms，则按照协议根据SMTC周期进行小区搜和解PBCH，即第一周期是小于20ms的；如果配置的SMTC周期大于20ms，则以20ms为周期进行小区搜和解PBCH，即第一周期时20ms；如果切换的目标小区没有配置SMTC，则以20ms为周期进行小区搜和解PBCH，以切换至目标小区。
在上述实施例的基础上，下面以目标小区的SMTC指示的周期为80ms，信号持续时间5ms为例，时长为5ms为例，对本申请提供的小区的切换方法中的小区搜索时间进行说明。
图5为本申请提供的小区的切换方法中小区搜索时间示意图，如图5所示，假设在第N+20ms的时刻，终端设备收到切换请求，在N+80ms、N+160ms、N+240ms为SMTC的测量时间窗。则按照上述的协议规定的SSB最大时间间隔是20ms，则按照本方案，小区搜索和解PBCH的周期可以确定为20ms。
假设同频需要时间1次小区搜索：则搜索时间为20ms。
假设异频需要时间3次小区搜索：则搜索时间为20*3＝60ms。
比图1所示的原有方案缩短时间：
同频1次小区搜索缩短时间：70-20＝50ms。
异频3次小区搜索缩短时间：230-60＝170ms。
本申请实施例提供的小区的切换方法中，当SMTC周期大于20ms的时候，以20ms为周期进行小区搜和解PBCH，能够加快小区搜索和解PBCH流程，缩短总的切换时延。同时也减少用户数据的中断时间。
图6为本申请提供的小区的切换装置实施例一的结构示意图；如图6所示，该小区的切换装置10包括：
接收模块11，用于接收切换请求，所述切换请求用于指示终端设备从当前接入的小区切换至目标小区；
处理模块12，用于若所述目标小区配置了SMTC，则根据所述目标小区的SMTC确定第一周期，所述第一周期小于或等于同步信号块SSB的最大时间间隔；
所述处理模块12还用于根据所述第一周期进行基于SSB的小区搜索和解PBCH过程，切换至所述目标小区。
本实施例提供的小区的切换装置，用于实现前述任一方法实施例的技术方案，其实现原理和技术效果类似，该装置在接收到指示小区切换的切换请求之后，确定切换请求指示的目标小区是否配置了SMTC，如果目标小区配置了SMTC，则根据该SMTC确定基于SSB的小区搜索和解PBCH过程的第一周期，该第一周期小于或等于SSB的最大时间间隔，然后按照该第一周期进行小区搜索和解PBCH过程，将终端设备切换至目标小区，该过程中基于SMTC确定小区搜索的周期是小于或等于SSB的最大时间间隔的，避免浪费很长的时间进行小区搜索，缩短总的切换时延，提升小区切换的效率。
在上述实施例的基础上，该小区的切换装置的具体实现中，所述处理模块12具体用于：
若所述目标小区的SMTC指示的测量周期小于或等于SSB的最大时间间隔，则将所述目标小区的SMTC指示的所述测量周期作为所述第一周期；
若所述目标小区的SMTC指示的测量周期大于所述SSB的最大时间间隔，则将所述SSB的最大时间间隔作为所述第一周期。
可选的，所述目标小区的SMTC包括测量周期、偏移位置以及持续时间。
可选的，所述接收模块11还用于接收网络设备发送的系统信息，所述系统信息中携带所述目标小区的所述SMTC。
可选的，所述处理模块12还用于：
若所述目标小区没有配置SMTC，则根据所述SSB的最大时间间隔进行基于SSB的小区搜索和解PBCH。
可选的，所述SSB的最大时间间隔为20ms。
上述任一实现方式提供的小区的切换装置，用于实现前述任一方法实施例的技术方案，其实现原理和技术效果类似，在此不再赘述。
图7为本申请提供的终端设备的另一种结构示意图。如图7所示，该终端设备包括：
存储器、处理器、接收器以及计算机程序，还可以包括发送器，所述计算机程序存储 在所述存储器中，所述处理器运行所述计算机程序执行前述任一实施例提供的小区的切换方法。
在上述终端设备的具体实现中，存储器可集成在处理器内部。处理器的数量为至少一个，用来执行存储器存储的执行指令，即计算机程序。
本申请还提供一种存储介质，包括：可读存储介质和计算机程序，所述计算机程序用于实现前述任一方法实施例提供的小区的测量方法。
本申请还提供一种程序产品，该程序产品包括计算机程序，该计算机程序存储在可读存储介质中，终端设备的至少一个处理器可以从可读存储介质读取该计算机程序，至少一个处理器执行该计算机程序使得用户设备实施前述任一方法实施例提供的小区的切换方法。
本申请提供一种芯片，所述芯片可应用于终端设备，所述芯片包括：至少一个通信接口，至少一个处理器，所述处理器经由所述通信接口与存储器耦合，所述处理器调用所述存储器中存储的计算机程序，以执行前述任一方法实施例提供的小区的切换方法。其中，所述存储器可设置在所述芯片之外，也可集成在所述芯片中。所述通信接口可以是能够实现处理器访问存储器的各种接口例如输入接口，处理设备，输出接口，还可以是通用闪存(universal flash storage，UFS)接口、快速外围组件互联(peripheral component interconnect express，PCIe)接口等。
在终端设备的具体实现中，应理解，处理器可以是中央处理单元(英文：Central Processing Unit，简称：CPU)，还可以是其他通用处理器、数字信号处理器(英文：Digital Signal Processor，简称：DSP)、专用集成电路(英文：Application Specific Integrated Circuit，简称：ASIC)等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一可读取存储器中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储器(存储介质)包括：只读存储器(英文：read-only memory，缩写：ROM)、RAM、快闪存储器、硬盘、固态硬盘、磁带(英文：magnetic tape)、软盘(英文：floppy disk)、光盘(英文：optical disc)及其任意组合。

Claims (16)

  1. 一种小区的切换方法，其特征在于，所述方法包括：
    接收切换请求，所述切换请求用于指示终端设备从当前接入的小区切换至目标小区；
    若所述目标小区配置了测量定时配置SMTC，则根据所述目标小区的SMTC确定第一周期，所述第一周期小于或等于同步信号块SSB的最大时间间隔；
    根据所述第一周期进行基于SSB的小区搜索和解PBCH过程，切换至所述目标小区。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述目标小区的SMTC确定第一周期，包括：
    若所述目标小区的SMTC指示的测量周期小于或等于所述SSB的最大时间间隔，则将所述目标小区的SMTC指示的所述测量周期作为所述第一周期；
    若所述目标小区的SMTC指示的测量周期大于所述SSB的最大时间间隔，则将所述SSB的最大时间间隔作为所述第一周期。
  3. 根据权利要求1或2所述的方法，其特征在于，所述目标小区的SMTC包括测量周期、偏移位置以及持续时间。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：
    接收网络设备发送的系统信息，所述系统信息中携带所述目标小区的所述SMTC。
  5. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    若所述目标小区没有配置SMTC，则根据所述SSB的最大时间间隔进行基于SSB的小区搜索和解PBCH。
  6. 根据权利要求2或4所述的方法，其特征在于，所述SSB的最大时间间隔为20ms。
  7. 一种小区的切换装置，其特征在于，包括：
    接收模块，用于接收切换请求，所述切换请求用于指示所述终端设备从当前接入的小区切换至目标小区；
    处理模块，用于若所述目标小区配置了测量定时配置SMTC，则根据所述目标小区的SMTC确定第一周期，所述第一周期小于或等于同步信号块SSB的最大时间间隔；
    所述处理模块还用于根据所述第一周期进行基于SSB的小区搜索和解PBCH过程，切换至所述目标小区。
  8. 根据权利要求7所述的终端设备，其特征在于，所述处理模块具体用于：
    若所述目标小区的SMTC指示的测量周期小于或等于所述SSB的最大时间间隔，则将所述目标小区的SMTC指示的所述测量周期作为所述第一周期；
    若所述目标小区的SMTC指示的测量周期大于所述SSB的最大时间间隔，则将所述SSB的最大时间间隔作为所述第一周期。
  9. 根据权利要求7或8所述的终端设备，其特征在于，所述目标小区的SMTC包括测量周期、偏移位置以及持续时间。
  10. 根据权利要求7至9任一项所述的终端设备，其特征在于，所述接收模块还用于接收网络设备发送的系统信息，所述系统信息中携带所述目标小区的所述SMTC。
  11. 根据权利要求7所述的终端设备，其特征在于，所述处理模块还用于：
    若所述目标小区没有配置SMTC，则根据所述SSB的最大时间间隔进行基于SSB的小区搜索和解PBCH。
  12. 根据权利要求8或10所述的终端设备，其特征在于，所述SSB的最大时间间隔为20ms。
  13. 一种终端设备，其特征在于，包括：存储器、处理器、接收器以及计算机程序，所述计算机程序存储在所述存储器中，所述处理器运行所述计算机程序执行权利要求1至5任一项所述的小区的切换方法。
  14. 一种存储介质，其特征在于，包括：可读存储介质和计算机程序，所述计算机程序用于实现权利要求1至6任一项所述的小区的切换方法。
  15. 一种程序产品，其特征在于，该程序产品包括计算机程序，该计算机程序存储在可读存储介质中，终端设备的至少一个处理器可以从可读存储介质读取该计算机程序，至少一个处理器执行该计算机程序使得终端设备实施权利要求1至6任一项所述的小区的切换方法。
  16. 一种芯片，其特征在于，所述芯片可应用于终端设备，所述芯片包括：至少一个通信接口，至少一个处理器，所述处理器经由所述通信接口与存储器耦合，所述处理器调用所述存储器中存储的计算机程序，以执行权利要求1至6任一项所述的小区的切换方法。
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CN107770820A (zh) * 2016-08-16 2018-03-06 大唐终端技术有限公司 一种网络模式切换方法及装置
CN108347749A (zh) * 2017-01-24 2018-07-31 中国移动通信有限公司研究院 一种切换方法、用户设备及基站
CN107040968A (zh) * 2017-03-30 2017-08-11 中国联合网络通信集团有限公司 小区切换方法及基站

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CN116671175A (zh) * 2021-01-12 2023-08-29 华为技术有限公司 一种smtc确定方法及装置
CN113068238A (zh) * 2021-03-30 2021-07-02 Oppo广东移动通信有限公司 一种小区选择方法、装置及存储介质

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