WO2023207810A1

WO2023207810A1 - Cell measurement and conversion method and apparatus

Info

Publication number: WO2023207810A1
Application number: PCT/CN2023/089913
Authority: WO
Inventors: 周化雨; 雷珍珠; 赵思聪; 潘振岗
Original assignee: 展讯通信（上海）有限公司
Priority date: 2022-04-24
Filing date: 2023-04-21
Publication date: 2023-11-02
Also published as: CN116980100A

Abstract

The present application provides a cell measurement and conversion method and apparatus. The cell measurement method comprises: performing measurement according to a measurement indication. By receiving a measurement indication and then performing measurement, it can be ensured that a non-anchor cell turns on only when needing to serve a terminal device, thereby helping to save network energy, and simultaneously ensuring that the terminal device can, as necessary, measure a measurement reference signal of the period of the non-anchor cell.

Description

Cell measurement and conversion method and device

This application claims priority to the Chinese patent application submitted to the State Intellectual Property Office on April 24, 2022, with application number 202210435750.6 and the application name "Community Measurement and Conversion Method and Device", the entire content of which is incorporated into this application by reference. middle.

Technical field

The present application relates to the field of communication technology, and in particular to a cell measurement and conversion method and device.

Background technique

In the 5G network, due to the large number of spectrum resources, when the network load is low, the carriers or cells corresponding to some frequency bands can be turned off and turned on as needed to achieve the purpose of network energy saving.

For connected terminal equipment, before the terminal equipment needs to switch from the target cell to the conversion target cell, the conversion target cell needs to send periodic measurement reference signals to support the terminal equipment in measuring the conversion target cell. In order to achieve the purpose of network energy saving, the conversion target cell can only send measurement reference signals on demand. Therefore, how to make the conversion target cell transmit the measurement reference signal of the period on demand is a problem that needs to be solved urgently.

Contents of the invention

In order to solve the above problems, this application provides a cell measurement and conversion method and device.

In the first aspect, this application provides a cell measurement method, including:

Carry out the measurement according to the measurement instructions.

In a possible implementation, the measurement reference signal is valid during the operation of the measurement timer.

In a possible implementation, the measurement timer is started after receiving the measurement indication.

In a possible implementation, the measurement reference signal includes at least one of the following:

sync signal block;

Channel state information reference signal.

In a possible implementation, the synchronization signal measurement timing configuration is valid during the operation of the measurement timer.

In a possible implementation, the measurement timer is started after receiving the measurement indication. moveable.

In a possible implementation, the measurement indication is carried by PDCCH.

In a possible implementation, the PDCCH is a PDCCH command.

In a possible implementation, the measurement indication is carried by RRC signaling.

In a possible implementation, the measurement indication is carried by MAC CE.

In a possible implementation, the method further includes:

Measure according to the measurement object configuration.

In a possible implementation, the measurement object configuration includes a cell identity or a cell physical identity.

In a possible implementation, the measurement object configuration includes cell frequency points.

In the second aspect, this application provides a cell measurement method, including:

Send measurement instructions to the terminal device.

In a possible implementation, the measurement indication is carried by PDCCH.

In a possible implementation, the PDCCH is a PDCCH command.

In a possible implementation, the measurement indication is carried by MAC CE.

In a possible implementation, the method further includes:

Send measurement object configuration to the terminal device.

In the third aspect, this application provides a cell switching method, including:

Fall back from the conversion target cell to the serving cell.

In a possible implementation, the fallback from the conversion target cell to the serving cell includes:

When the switching timer times out, the switching target cell falls back to the serving cell.

In a possible implementation, the duration of the handover timer is configured by high-layer signaling.

In a possible implementation, the switching timer is started when the terminal device receives the switching instruction.

In a possible implementation, the handover timer is started or restarted when the terminal device detects the PDCCH on the handover target cell.

In a possible implementation, the switching timer is started or restarted when the terminal device receives the scheduling information on the switching target cell.

When receiving a fallback instruction, fallback from the switching target cell to the serving cell.

In a possible implementation, the backoff indication is carried by PDCCH; or,

The fallback indication is carried by RRC signaling; or,

The backoff indication is carried by MAC CE.

When the measurement value is less than or equal to the preset threshold, fallback from the conversion target cell to the serving cell.

In a possible implementation, the measurement value is a measurement value of the conversion target cell, or a measurement value corresponding to a measurement target after conversion to the conversion target cell.

In a possible implementation, the measured value is any one of the following:

RSRP;

RSRQ;

SINR.

In a possible implementation, the preset threshold is configured by high-layer signaling.

When a wireless link failure or beam failure occurs, the switching target cell falls back to the serving cell.

In the fourth aspect, this application provides a cell switching method, including:

Instruct the terminal device to fall back from the conversion target cell to the serving cell.

In a possible implementation, the instructing the terminal device to fall back from the conversion target cell to the serving cell includes:

Instruct the terminal device to fall back from the switching target cell to the serving cell according to a handover timer.

In a possible implementation, the instructing terminal equipment falls back from the conversion target cell to the serving cell. service communities, including:

Send a fallback instruction to the terminal device, where the fallback instruction is used to instruct the terminal device to fallback from the conversion target cell to the serving cell.

In a possible implementation, the backoff indication is carried by PDCCH; or,

The fallback indication is carried by RRC signaling; or,

The backoff indication is carried by MAC CE.

A preset threshold is sent to the terminal device, and the preset threshold instructs the terminal device to fall back from the conversion target cell to the serving cell when the measurement value is less than or equal to the preset threshold.

In a possible implementation, the measurement value is a measurement value of the terminal device on the conversion target cell, or a measurement value corresponding to a measurement target after the terminal device converts to the conversion target cell.

In a possible implementation, the measured value is any one of the following:

RSRP;

RSRQ;

SINR.

In a fifth aspect, this application provides a cell measurement device, including:

The measurement module is used to measure according to the measurement instructions.

sync signal block;

Channel state information reference signal.

In a possible implementation, the measurement indication is carried by PDCCH.

In a possible implementation, the PDCCH is a PDCCH command.

In a possible implementation, the measurement indication is carried by MAC CE.

In a possible implementation, the measurement module is also used to:

Measure according to the measurement object configuration.

In a sixth aspect, this application provides a cell measurement device, including:

The sending module is used to send measurement instructions to the terminal device.

In a possible implementation, the measurement indication is carried by PDCCH.

In a possible implementation, the PDCCH is a PDCCH command.

In a possible implementation, the measurement indication is carried by MAC CE.

In a possible implementation, the sending module is also used to:

Send measurement object configuration to the terminal device.

In the seventh aspect, this application provides a cell switching device, including:

A processing module used to fall back from the conversion target cell to the serving cell.

In a possible implementation, the processing module is specifically used to:

In a possible implementation, the backoff indication is carried by PDCCH; or,

The fallback indication is carried by RRC signaling; or,

The backoff indication is carried by MAC CE.

In a possible implementation, the processing module is specifically used to:

In a possible implementation, the measured value is any one of the following:

RSRP;

RSRQ;

SINR.

In a possible implementation, the processing module is specifically used to:

In an eighth aspect, this application provides a cell switching device, including:

A processing module used to instruct the terminal equipment to fall back from the conversion target cell to the serving cell.

In a possible implementation, the processing module is specifically used to:

In a possible implementation, the backoff indication is carried by PDCCH; or,

The fallback indication is carried by RRC signaling; or,

The backoff indication is carried by MAC CE.

In a possible implementation, the processing module is specifically used to:

In a possible implementation, the measured value is any one of the following:

RSRP;

RSRQ;

SINR.

In a ninth aspect, this application provides a terminal device, including: at least one processor and a memory;

The memory stores computer execution instructions;

The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell measurement method according to any one of the first aspects, or causes the at least one processor to execute the cell measurement method as described in the first aspect. The cell switching method described in any of the three aspects.

In a tenth aspect, this application provides a network device, including: at least one processor and a memory;

The memory stores computer execution instructions;

The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell measurement method as described in any one of the second aspects, or causes the at least one processor to execute the cell measurement method as described in the second aspect. The cell switching method according to any one of the four aspects.

In an eleventh aspect, the present application provides a computer-readable storage medium in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the first to second aspects are implemented. The cell measurement method described in any one of the above or the cell switching method described in any one of the third to fourth aspects.

In a twelfth aspect, the present application provides a computer program product, including a computer program that, when executed by a processor, implements the cell measurement method described in any one of the first to second aspects, or, the third aspect to the cell switching method described in any one of the fourth aspects.

This application provides a cell measurement and conversion method and device. After the anchor cell sends a measurement instruction, it can control the non-anchor cell that has not yet been opened to open and send periodic measurement reference signals. After the terminal device receives the measurement instruction, Start taking measurements to discover non-anchor cells. by picking up Measuring after receiving the measurement instruction can ensure that the non-anchor cell is only opened when the terminal device needs to be served, which helps to save network energy and ensures that the terminal device can measure the periodic reference signal of the non-anchor cell on demand. Take measurements.

Description of drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application;

Figure 2 is a schematic flow chart of the cell measurement method provided by the embodiment of the present application;

Figure 3 is a schematic flow chart of a cell switching method provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a cell measurement device provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram 2 of the cell measurement device provided by the embodiment of the present application;

Figure 6 is a schematic structural diagram of a cell switching device provided by an embodiment of the present application;

Figure 7 is a schematic structural diagram 2 of the cell switching device provided by the embodiment of the present application;

Figure 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

Figure 9 is a schematic structural diagram of a network device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In order to facilitate understanding, first, the concepts involved in this application are explained.

Terminal equipment: It can be a device that includes wireless transceiver functions and can cooperate with network equipment to provide communication services to users. Specifically, the terminal equipment may refer to user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, User agent or user device. For example, the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol) Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, Vehicle-mounted devices, wearable devices, terminal devices in future 5G networks or networks after 5G, etc.

Network equipment: Network equipment can be equipment used to communicate with terminal equipment, for example, it can be a Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) communication system It can be a base station (Base Transceiver Station, BTS), a base station (NodeB, NB) in a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, or an evolutionary base station (Evolutional Node) in an LTE system. B, eNB or eNodeB), or the network device can be a relay station, access point, vehicle-mounted device, wearable device, and network-side device in the future 5G network or the network after 5G or the future evolved public land mobile network (Public Land Mobile Network, PLMN) network equipment in the network, etc.

The network equipment involved in the embodiment of this application may also be called a radio access network (Radio Access Network, RAN) equipment. The RAN equipment is connected to the terminal equipment and is used to receive data from the terminal equipment and send it to the core network equipment. RAN equipment corresponds to different equipment in different communication systems. For example, it corresponds to base stations and base station controllers in 2G systems, base stations and radio network controllers (Radio Network Controller, RNC) in 3G systems, and evolution in 4G systems. Type base station (Evolutional Node B, eNB) corresponds to the 5G system in the 5G system, such as the access network equipment in NR (such as gNB, centralized unit CU, distributed unit DU).

Synchronization signal block: Synchronization Signal and PBCH block, referred to as SSB, consists of three parts: Primary Synchronization Signals (PSS), Secondary Synchronization Signals (SSS), and Physical Broadcast Channel (PBCH) composed together. In Rel-15NR, synchronization signals and broadcast channels are sent in the form of synchronization signal blocks, and the beam sweeping function is introduced. The primary synchronization signal, the secondary synchronization signal and the physical broadcast channel are in the synchronization signal block. Each synchronization signal block can be regarded as a resource of a beam (analog domain) in the beam scanning process. Multiple synchronization signal blocks form a synchronization signal burst (SS-burst). A synchronization signal burst can be regarded as a relatively concentrated resource containing multiple beams. Multiple synchronization signal bursts form a synchronization signal burst set (SS-burst-set). The synchronization signal block is repeatedly sent on different beams, which is a beam scanning process. Through beam scanning training, the user equipment can sense which beam receives the strongest signal. The time domain positions of L synchronization signal blocks within a 5ms window are fixed. The indexes of L synchronization signal blocks are continuously arranged in the time domain position, from 0 to L-1. Therefore, the transmission time of a synchronization signal block within this 5ms window is fixed, and the index is also fixed.

RRC: Radio Resource Control, wireless resource control.

MAC CE: Medium Access Control Control Element, media access control control entity.

PDCCH: Physical Downlink Control Channel, physical downlink control channel.

SMTC: Sychanronization Measurement Timing Configuration, synchronization signal measurement timing configuration.

In the 5G network, due to the large number of spectrum resources, such as 1GHz, 2GHz, 4GHz, 6GHz and 26GHz frequency bands, when the network load is low, the carriers corresponding to some frequency bands (such as 4GHz, 6GHz or 26GHz, etc.) of the base station ( Carriers or cells can be turned off as much as possible, and the carriers or cells corresponding to other frequency bands (such as 1GHz, 2GHz, etc.) can be turned on as much as possible, and the closed carriers or cells can be turned on as needed to achieve the purpose of network energy saving. That is to say, when the network load is low, the base station may not use some carriers or cells to carry data, but use other carriers or cells to carry data. In other words, network energy saving can be achieved by switching certain carriers on and off, but this generally needs to be achieved when the network load is low.

Currently, these carriers or cells still need to send measurement reference signals (synchronization signal blocks, tracking reference signals, etc.) to support the access and mobility of terminal equipment. Such a carrier or cell may be called a non-anchor carrier or a non-anchor cell, or a second type of carrier or a second type of cell, or a secondary carrier. component carrier (SCC) or secondary cell (SCell). Correspondingly, a carrier or cell that is not closed may be called an anchor carrier or a non-anchor cell, or a first-type carrier or a first-type cell, or a primary carrier. component carrier (PCC) or primary cell (PCell). The non-anchor carrier may be different from the secondary cell in carrier aggregation (CA) or dual connection (DC). The non-anchor carrier may be the primary cell or primary secondary cell (primary secondary cell) in CA or DC. PSCell). Generally speaking, the anchor carrier is the primary cell or primary and secondary cells in CA or DC. Therefore, the conversion between the non-anchor carrier and the anchor carrier may be a conversion between the primary cell or the primary and secondary cells. If the non-anchor carrier is understood as a secondary cell in CA or DC, then the conversion between the non-anchor carrier and the anchor carrier can be understood as the addition, deletion or modification of the secondary cell in CA or DC. The use of anchor carriers and non-anchor carriers is simpler than CA or DC, has lower requirements on the backhaul network, and does not require the UE to receive signals from multiple carriers at the same time, making it easier to implement.

In the above embodiment, the relevant content of network energy saving is introduced. Based on the above content, the following describes the applicable scenarios of the method in this application with reference to Figure 1.

Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application. Please refer to Figure 1, including a terminal device 101, an anchor cell 102, a non-anchor cell 103 and a base station 104.

In the embodiment of this application, the anchor cell 102 can be represented by serving cell (Serving Cell), source cell (Source Cell) or current cell (current cell), and can be represented by non-serving cell (Non-serving Cell) or target cell ( Target Cell) or candidate cell represents the non-anchor cell 103. Because for a given terminal device 101, the serving cell, source cell, or current cell before the terminal device 101 switches may be the above-mentioned unclosed cell or carrier, the anchor cell 102 may be the serving cell, source cell, or current cell. The non-serving cell, target cell or candidate cell used as the conversion target may be the above-mentioned cell or carrier opened on demand, so the non-anchor cell 103 may be a non-serving cell, target cell or candidate cell.

It should be noted that the anchor cell 102 and the non-anchor cell 103 may belong to the same base station, or may be configured in different base stations respectively. When the anchor cell 102 and the non-anchor cell 103 belong to the same base station, the anchor cell 102 may be called PCell or PCC, and the non-anchor cell 103 may be called SCell or SCC. When the anchor cell 102 and the non-anchor cell 103 belong to different base stations, the anchor cell 102 may be called PCell or PCC, and the non-anchor cell 103 may also be called PCell or PCC.

It should be noted that in this application, when the anchor cell 102 serves as the execution subject to perform corresponding actions, it can be understood that the base station corresponding to the anchor cell 102 serves as the execution subject to perform the corresponding actions. That is to say, the anchor cell 102 can be replaced. is the base station corresponding to the anchor cell 102. Similarly, in this application, when the non-anchor cell 103 performs corresponding actions as the execution subject, it can be understood that the base station corresponding to the non-anchor cell 103 performs the corresponding actions as the execution subject. That is to say, the non-anchor cell 103 can be replaced. is the base station corresponding to the non-anchor cell 103.

It should be noted that in this application, the RRC of the non-anchor cell may be the RRC of the non-anchor cell sent by the anchor cell to the terminal device in advance, or may be the RRC of the non-anchor cell reconfigured by the non-anchor cell.

Referring again to Figure 1, one base station 104 may configure both the non-anchor cell 103 and the anchor cell 102 at the same time. When the network load is low, the terminal device 101 can complete the transmission of service data on the anchor cell 102, and the base station 104 can shut down the non-anchor cell 103 to achieve network energy saving. When the network load is high, the non-anchor cell 103 can be opened, that is, the terminal device 101 can access the network through the non-anchor cell 103 to achieve the purpose of supporting data load balancing.

It can be understood that the technical solutions of the embodiments of the present application can be applied to NR communication technology. NR It refers to a new generation of wireless access network technology that can be applied in future evolving networks, such as the future fifth generation mobile communication (the 5th Generation Mobile Communication, 5G) system. The solutions in the embodiments of this application can also be applied to other wireless communication networks such as Wireless Fidelity (WIFI) and Long Term Evolution (LTE). The corresponding names can also be used in other wireless communication networks. The name of the function is replaced.

The network architecture and business scenarios described in the embodiments of this application are for the purpose of explaining the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

The synchronization signal block can be used for user equipment to perform time-frequency synchronization and obtain the Master Information Block (Master Information Block, MIB) and System Information Block (System Information Block, SIB). For non-anchor carriers or cells, they are only used for data load balancing and do not need to carry MIBs, so synchronization signal blocks (bursts) can be simplified. On the contrary, the anchor carrier or cell needs to carry MIB and SIB to support cell search and system information transmission. Non-anchor carriers or cells may still need to support paging, random access and Radio Resource Management (RRM) measurements, etc., so they still need to carry synchronization signal blocks to support time-frequency synchronization/time-frequency tracking of user equipment. and RRM measurements.

Generally speaking, non-anchor cells are controlled by the network and are opened on demand. The timing of opening the non-anchor cell can be before the terminal device completes random access, or after the terminal device completes random access. . When the timing of opening a non-anchor cell is before the terminal device completes random access, the terminal device can be allowed to use the resources of the non-anchor cell as soon as possible, so that the non-anchor cell can provide more load balancing and reduce the connection state for switching. signaling overhead. The random access process is generally divided into four steps, corresponding to the four channels or messages of the random access channel. Random access channels include Physical Random Access Channel (PRACH), also called Message 1 (Msg1), Random Access Response (RAR), also called Message 2 (Msg2), and Message 3 (Msg3). , Message 4 (Msg4), etc. The timing for opening the non-anchor cell may be before the UE initiates random access, that is, before sending the PRACH. The terminal device can initiate random access on the non-anchor cell and use the random access channel (Random Access Channel, RACH) resource on the non-anchor cell. The timing for opening the non-anchor cell may also be after the terminal device initiates random access but before completing random access, such as before sending message 3. In this way, the terminal device can transfer to the non-anchor cell as soon as possible after initiating random access on the anchor cell. When the non-anchor cell is opened after the terminal device completes random access, that is, after completing the initial access or entering the connected state, The shape allows non-anchor cells to only serve connected terminal devices, increases the shutdown time of non-anchor cells, and increases the energy-saving gain of non-anchor cells.

In the embodiment of the present application, the timing for opening the non-anchor cell is after the terminal device completes random access, that is, the terminal device in the connected state needs to switch to the non-anchor cell. Before the terminal device switches to the non-anchor cell, the terminal device needs to perform measurements on the non-anchor cell. Since anchor cells and non-anchor cells generally use different frequencies, in order to avoid complex interference management, measurements on non-anchor cells are usually inter-frequency measurements, that is, non-anchor cells need to send periodic measurement reference signals to Supports terminal equipment to perform Layer 3 (L3) inter-frequency measurements. However, non-anchor cells are turned on on demand, that is to say, non-anchor cells need to send measurement reference signals on demand to achieve energy saving. How to enable the terminal equipment to measure the periodic measurement reference signal of the non-anchor cell on demand is a problem that needs to be solved urgently.

Based on this, this application provides a cell measurement method. The solution of this application will be introduced below with reference to the accompanying drawings.

Figure 2 is a schematic flow chart of a cell measurement method provided by an embodiment of the present application. As shown in Figure 2, the method may include:

S21: The network device sends a measurement instruction to the terminal device.

In some cases, such as when uplink and downlink burst traffic arrives, the anchor cell can deduce or sense which non-anchor cells the terminal device is close to, and then the anchor cell can instruct these non-anchor cells to send periodic measurement reference signals.

Further, the anchor cell may send a measurement instruction to the terminal device to instruct the terminal device to perform measurement. Optionally, the network device in this embodiment of the present application may be the base station to which the anchor cell belongs.

S22: The terminal device performs measurement according to the measurement instruction.

After receiving the measurement indication, the terminal device can measure these non-anchor cells. For example, after receiving the measurement indication, the terminal device can measure the non-anchor cells according to the periodic measurement reference signals sent by the non-anchor cells within a period of time, and obtain the measurement results. After the terminal device measures the non-anchor cell, it can also report the measurement results, and then switch to the appropriate non-anchor cell based on the measurement results, so that the non-anchor cell provides services for the terminal device and completes business processing.

The cell measurement method provided by the embodiment of the present application can control the non-anchor cell that has not yet been opened to open and send periodic measurement reference signals after the anchor cell sends the measurement instruction. After receiving the measurement instruction, the terminal device starts the measurement according to the instruction. Measurements are taken to discover non-anchor cells. By performing measurements after receiving the measurement indication, it can be ensured that the non-anchor cell only needs service terminal equipment. It is turned on only when the signal is turned on, which helps to save network energy and ensures that the terminal equipment can measure the periodic measurement reference signal of the non-anchor cell as needed.

The solution of the present application will be introduced in detail below with reference to specific embodiments.

The anchor cell may instruct the terminal device to perform measurement through a measurement indication, where the measurement indication may be carried in different signaling.

For example, the measurement indication may be carried in the PDCCH. The anchor cell sends the PDCCH to the terminal equipment. After receiving the PDCCH, the terminal equipment can obtain the measurement indication. The measurement indication is carried in the PDCCH. This indication method is relatively fast. The anchor cell can instruct the connected terminal equipment to measure the non-anchor cell through the measurement indication.

Optionally, the PDCCH can be a PDCCH order (PDCCH order). By carrying the measurement indication in the PDCCH command, the PDCCH command itself can trigger the terminal equipment to send PRACH, thereby reducing the modification of the PDCCH.

For example, the measurement indication may be carried in RRC signaling. The anchor cell sends RRC signaling to the terminal device. After receiving the RRC signaling, the terminal device can obtain the measurement indication. Since RRC signaling is relatively reliable, the reliability of the indication is improved by carrying the measurement indication in the RRC signaling. The anchor cell instructs the connected terminal equipment to perform measurements on the non-anchor cell through the measurement indication carried in the RRC signaling.

For example, the measurement indication may be carried in the MAC CE. The anchor cell sends MAC CE to the terminal device. After receiving the MAC CE, the terminal device can obtain the measurement indication. By carrying measurement instructions in MAC CE, both speed and reliability are taken into account. The anchor cell instructs the connected terminal device to measure the non-anchor cell through the measurement indication carried in the MAC CE.

In the above embodiment, a solution is introduced in which the measurement indication can be carried in PDCCH, RRC signaling, and MAC CE to instruct the terminal device to measure the non-anchor cell. The specific process of measurement by terminal equipment will be introduced below.

In one implementation, after receiving the measurement instruction, the terminal device starts the measurement timer, and the measurement timer starts running.

The terminal equipment assumes that the measurement reference signal is valid before the measurement timer expires, and assumes that the measurement reference signal is invalid after the measurement timer expires. That is, while the measurement timer is running, the terminal device considers that the measurement reference signal is valid and needs to be measured. After the measurement timer times out, the measurement reference signal is invalid and there is no need to measure it.

By setting the measurement timer, the anchor cell can control the non-anchor cell to only send measurement reference signals within a period of time, and can also control the terminal device to only send measurement reference signals periodically within a period of time. Measure the quantity reference signal to meet the needs of network energy saving.

Optionally, the measurement reference signal includes a synchronization signal block. The terminal device can blindly detect and discover non-anchor cells based on the synchronization signal block. It can also obtain the timing information of asynchronous non-anchor cells and perform measurements at the same time.

Optionally, the measurement reference signal includes a channel state information reference signal. Although the channel state information reference signal cannot blindly detect and discover non-anchor cells and obtain the timing information of asynchronous non-anchor cells, the channel state information reference signal can use less time-frequency resources to measure some non-anchor cells. Anchor cells, such as synchronized discovered non-anchor cells.

The terminal device assumes that the SMTC is valid before the measurement timer expires, and assumes that the SMTC is invalid after the measurement timer expires. Usually SMTC is a periodic window, and the terminal device can only perform measurements in SMTC. Generally speaking, for terminal equipment, whether SMTC is valid also represents whether the synchronization signal block needs to be measured. On the one hand, the network device can configure SMTC to avoid configuring the period of the synchronization signal block in the measurement object to the terminal device; on the other hand, the SMTC period can be greater than the period of the synchronization signal block, and SMTC can reduce the measurement of the synchronization signal block. In this way, through the timer, the anchor cell can control the non-anchor cell to only send the measurement reference signal for a period of time, and can also control the UE to only perform periodic measurements for a period of time.

The anchor cell can send the measurement object configuration to the terminal device, and the terminal device performs measurements according to the measurement object configuration.

For example, the measurement object configuration includes a cell identity or a cell physical identity. The anchor cell can notify the terminal device of the measurement reference signal sent by the non-anchor cell that needs to be measured by configuring the cell identity or cell physical identity. The sequence of the measurement reference signal is generated by the cell identity or cell physical identity.

For example, the measurement object configuration includes cell frequencies, so that non-anchor cells are deployed at different frequencies from the anchor cells, which reduces interference to the anchor cells and facilitates better sharing of non-anchor cells. Business traffic serves terminal devices.

In the above embodiment, a solution is introduced in which the terminal device can measure the non-anchor cell after receiving the measurement indication, and then switch to the non-anchor cell based on the measurement result. In the connected state, the terminal device may switch to the non-anchor cell to send and receive data only briefly. For example, the non-anchor cell service is only for the moment when high-throughput burst traffic occurs. In this case, frequent switching between non-anchor cells and anchor cells will lead to a large amount of signaling and frequent service interruptions. Based on this, embodiments of the present application provide a cell switching method to enable terminal equipment to complete burst operations through non-anchor cells. Efficiently fall back to the anchor cell after the service is completed.

Figure 3 is a schematic flowchart of a cell switching method provided by an embodiment of the present application. As shown in Figure 3, the method may include:

S31: Fall back from the conversion target cell to the serving cell.

For connected terminal equipment, the terminal equipment may only send and receive data briefly when switching to a non-anchor cell. For example, non-anchor cell services are only targeted at moments when burst traffic with high throughput occurs. For this kind of situation, after completing sending and receiving data, the terminal device can fall back to the anchor cell. Among them, the terminal device can fall back from the conversion target cell to the serving cell under the instruction of the network device, or can independently roll back from the conversion target cell to the serving cell.

In a possible implementation, the terminal device can fall back from the non-anchor cell to the anchor cell when the handover timer times out. Specifically, the network device can configure a handover timer for the terminal device, and use the handover timer to instruct the terminal device to fall back from the non-anchor cell to the anchor cell. There is no need to perform cell switching during the handover timer. When the handover timer times out, the terminal device can perform cell switching and fallback from the non-anchor cell to the anchor cell.

Compared with the solution of cell switching through handover instructions, since the handover instructions are physical layer control signaling, false detections are prone to occur. When false detections occur, the anchor cell will mistakenly believe that the terminal device has been switched to a non-anchor cell. , but in fact the terminal device does not switch to the non-anchor cell, and the solution of cell switching through the handover timer, the terminal device performs rollback after the handover timer times out, and falls back from the non-anchor cell to the anchor cell. It can be guaranteed that the anchor cell can still control the terminal device in the end.

Optionally, the duration of the handover timer is configured by higher layer signaling. The anchor cell can use high-level signaling to match the duration of burst services that need to be sent and received on the non-anchor cell, and then synchronize the duration of the handover timer to the terminal device. The terminal device determines the timing of falling back to the anchor cell through a handover timer.

Optionally, the switching timer is started when the terminal device receives the switching instruction. After the terminal device receives the switching indication, the switching timer starts and starts running. It will fall back to the anchor cell until the handover timer times out.

Optionally, the handover timer is started or restarted when the terminal equipment detects the PDCCH on the non-anchor cell. When the terminal equipment detects the PDCCH on the non-anchor cell, it means that the non-anchor cell still needs to schedule or control the terminal equipment. The moment when the terminal equipment detects the PDCCH on the non-anchor cell can be used as the moment when the handover timer is started or restarted. After the switching timer is started or restarted, the switching timer starts running. It will fall back to the anchor cell until the handover timer times out.

Optionally, the handover timer is started when the terminal device receives the scheduling information on the non-anchor cell. or restart. When the terminal device receives the scheduling information on the non-anchor cell, it indicates that the non-anchor cell still needs to schedule or control the terminal device. The time when the terminal device receives the scheduling information on the non-anchor cell can be used as the time when the handover timer is started or restarted. After the switching timer is started or restarted, the switching timer starts running. It will fall back to the anchor cell until the handover timer times out.

In a possible implementation, the network device may send a fallback instruction to the terminal device, and the terminal device may fallback from the non-anchor cell to the anchor cell when receiving the fallback instruction.

Optionally, the backoff indication can be carried in the PDCCH. The anchor cell sends the PDCCH to the terminal device. After receiving the PDCCH, the terminal device can obtain the backoff indication. The fallback indication is carried in the PDCCH. This indication method is relatively fast. The fallback indication can instruct the terminal equipment to fall back to the anchor cell.

Optionally, the backoff indication can be carried in RRC signaling. The anchor cell sends RRC signaling to the terminal device. After receiving the RRC signaling, the terminal device can obtain the fallback indication. Since RRC signaling is relatively reliable, the reliability is improved by carrying the backoff indication in the RRC signaling. The terminal device can be instructed to fall back to the anchor cell through the fallback indication.

For example, the backoff indication can be carried in the MAC CE. The anchor cell sends MAC CE to the terminal device. After receiving the MAC CE, the terminal device can obtain the fallback indication. By carrying the fallback indication in the MAC CE, both speed and reliability are taken into account. The terminal device can be instructed to fall back to the anchor cell through the fallback indication.

In a possible implementation, the network device may send a preset threshold to the terminal device to instruct the terminal device to perform cell switching when the measurement value is less than or equal to the preset threshold. The terminal device can fall back from the non-anchor cell to the anchor cell when the measurement value is less than or equal to the preset threshold.

Optionally, the measurement value is a measurement value of the conversion target cell (ie, a non-anchor cell), or a measurement value corresponding to the measurement target after conversion to the conversion target cell.

When the measurement value is less than or equal to the preset threshold, it means that the terminal device is already in the edge area of the non-anchor cell, and the terminal device is no longer suitable to complete burst services on the non-anchor cell. At this time, the terminal device falls back to the anchor cell, which can ensure that the anchor cell can still control the terminal device in the end.

Optionally, the preset threshold is configured by higher layer signaling. The anchor cell or non-anchor cell can match the duration of burst services that need to be sent and received on the anchor cell through high-level signaling.

Optionally, the measurement value can be RSRP. RSRP represents the average received power on the resource elements carrying the reference signal in the measurement frequency bandwidth, which can reflect the strength of the wireless signal to a certain extent. When the RSRP is less than or equal to the preset threshold, it means that the terminal equipment is no longer suitable to complete burst services on the non-anchor cell. At this time, the terminal equipment needs to fall back to the anchor cell.

Optionally, the measurement value may be RSRQ, where RSRQ is the reference signal reception quality. When the RSRQ is less than or equal to the preset threshold, it means that the terminal equipment is no longer suitable to complete burst services on the non-anchor cell. At this time, the terminal equipment needs to fall back to the anchor cell.

Optionally, the measurement value may be SINR, which refers to the ratio of the strength of the received useful signal to the strength of the received interference signal, that is, the signal-to-noise ratio. When the SINR is less than or equal to the preset threshold, it means that the terminal equipment is no longer suitable to complete burst services on the non-anchor cell. At this time, the terminal equipment needs to fall back to the anchor cell.

It can be understood that for different types of measurement values, the corresponding preset thresholds may be the same or different, which is not limited in the embodiments of the present application.

In a possible implementation, the terminal device can fall back from the non-anchor cell to the anchor cell when a wireless link failure or beam failure occurs. The wireless link is the judgment of whether a link in the upper layer fails, and the beam can be regarded as the judgment of whether the link in the physical layer fails. When a wireless link failure or beam failure occurs, it means that the channel condition corresponding to the wireless link or beam is poor. At this time, the terminal device is no longer able to use the wireless resources of the non-anchor cell, for example, it encounters severe deep fading or obstruction. The terminal equipment is no longer suitable for completing burst services on the non-anchor cell. At this time, the terminal device falls back to the anchor cell, which can ensure that the anchor cell can still control the terminal device in the end.

To sum up, this application provides a cell measurement and cell switching method. When uplink and downlink burst traffic arrives, the anchor cell deduce or senses the non-anchor cells close to the terminal device, and then controls these non-anchor cells. Send periodic measurement reference signals, and instruct the terminal equipment to measure non-anchor cells through measurement instructions. Then, signaling is sent to the terminal device through the measurement results fed back by the terminal device, so that the terminal device can efficiently switch to the non-anchor cell. When the service is completed, the terminal device can also efficiently fall back to the anchor cell.

Figure 4 is a schematic structural diagram of a cell measurement device provided by an embodiment of the present application. As shown in Figure 4, the cell measurement device 40 includes:

The measurement module 41 is used to perform measurements according to the measurement instructions.

In a possible implementation, the measurement timer is started after receiving the measurement instruction.

sync signal block;

Channel state information reference signal.

In a possible implementation, the measurement indication is carried by PDCCH.

In a possible implementation, the PDCCH is a PDCCH command.

In a possible implementation, the measurement indication is carried by the MAC CE.

In a possible implementation, the measurement module 41 is also used to:

Measure according to the measurement object configuration.

The cell measurement device provided by the embodiments of the present application is used to execute the above method embodiments. Its implementation principles and technical effects are similar, and will not be described again in this embodiment.

The cell measurement device shown in the embodiment of this application may be a chip, a hardware module, a processor, etc. Of course, the cell measurement device may be in other forms, and this is not specifically limited in the embodiments of the present application.

Figure 5 is a second structural schematic diagram of a cell measurement device provided by an embodiment of the present application. As shown in Figure 5, the cell measurement device 50 includes:

The sending module 51 is used to send measurement instructions to the terminal device.

In a possible implementation, the measurement indication is carried by PDCCH.

In a possible implementation, the PDCCH is a PDCCH command.

In a possible implementation, the sending module 51 is also used to:

Send measurement object configuration to the terminal device.

Figure 6 is a schematic structural diagram of a cell switching device provided by an embodiment of the present application. As shown in Figure 6, the cell switching device 60 includes:

The processing module 61 is used to fall back from the conversion target cell to the serving cell.

In a possible implementation, the processing module 61 is specifically used to:

When the handover timer times out, the switching target cell falls back to the serving cell.

In a possible implementation, the processing module 61 is specifically used to:

When receiving the fallback instruction, fallback from the switching target cell to the serving cell.

In a possible implementation, the backoff indication is carried by the PDCCH; or,

The fallback indication is carried by RRC signaling; or,

The fallback indication is carried by the MAC CE.

In a possible implementation, the processing module 61 is specifically used to:

In a possible implementation, the measurement value is a measurement value of the conversion target cell, or a measurement value corresponding to the measurement target after conversion to the conversion target cell.

In a possible implementation, the measured value is any of the following:

RSRP;

RSRQ;

SINR.

In a possible implementation, the processing module 61 is specifically used to:

The cell switching device provided by the embodiments of the present application is used to execute the above method embodiments. Its implementation principles and technical effects are similar and will not be described again in this embodiment.

The cell conversion device shown in the embodiment of the present application may be a chip, a hardware module, a processor, etc. Of course, the cell measurement device may be in other forms, and this is not specifically limited in the embodiments of the present application.

Figure 7 is a second structural schematic diagram of a cell switching device provided by an embodiment of the present application. As shown in Figure 7, the cell switching device 70 includes:

The processing module 71 is used to instruct the terminal device to fall back from the conversion target cell to the serving cell.

In a possible implementation, the processing module 71 is specifically used to:

Instruct the terminal equipment to fall back from the switching target cell to the serving cell according to the handover timer.

In a possible implementation, the processing module 71 is specifically used to:

A fallback instruction is sent to the terminal device, where the fallback instruction is used to instruct the terminal device to fall back from the conversion target cell to the serving cell.

The fallback indication is carried by RRC signaling; or,

The fallback indication is carried by the MAC CE.

In a possible implementation, the processing module 71 is specifically used to:

In a possible implementation, the measurement value is a measurement value of the terminal device on the conversion target cell, or a measurement value corresponding to the measurement target after the terminal device is converted to the conversion target cell.

In a possible implementation, the measured value is any of the following:

RSRP;

RSRQ;

SINR.

Embodiments of the present application provide a chip, which includes a processor. The processor can be used to execute computer execution instructions stored in a memory to implement the cell measurement method in any of the above method embodiments of the present application (for example, according to the measurement instructions , perform measurements), or to implement the cell switching method in any of the above method embodiments of this application (for example, falling back from the switching target cell to the serving cell). Optionally, the memory that stores the instructions executed by the computer can be the memory inside the chip, It can also be memory external to the chip.

Embodiments of the present application provide a chip, which includes a processor. The processor can be used to execute computer execution instructions stored in a memory to implement the cell measurement method in any of the above method embodiments of the present application (for example, transmitting data to a terminal device). Send a measurement instruction), or to implement the cell switching method in any of the above method embodiments of this application (for example, instruct the terminal device to fall back from the switching target cell to the serving cell). Optionally, the memory that stores instructions executed by the computer may be a memory inside the chip or a memory outside the chip.

Regarding the various modules/units included in each device and product described in the above embodiments, they may be software modules/units or hardware modules/units, or they may be partly software modules/units and partly hardware modules/units. . For example, for various devices and products applied to or integrated into a chip, each module/unit included therein can be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of a software program. The software program Running on the processor integrated inside the chip, the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied to or integrated into the chip module, each module/unit included in it can They are all implemented in the form of hardware such as circuits. Different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components. Alternatively, at least some modules/units can be implemented in the form of software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied to or integrated in terminal equipment/network equipment, other Each included module/unit can be implemented in the form of hardware such as circuits. Different modules/units can be located in the same component (such as a chip, circuit module, etc.) or in different components within the terminal device/network device, or at least some of the modules/units. The unit can be implemented in the form of a software program, which runs on the processor integrated within the terminal device/network device. The remaining (if any) modules/units can be implemented in hardware such as circuits.

Figure 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. Referring to FIG. 8 , the terminal device 80 may include: a transceiver 81 , a memory 82 , and at least one processor 83 . Transceiver 81 may include a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, a transmitter, a transmitting port or a transmitting interface, and similar descriptions, and the receiver may also be referred to as a receiver, a receiver, a receiving port, a receiving interface, and similar descriptions. For example, the transceiver 81 , the memory 82 , and the processor 83 are connected to each other through a bus 84 .

Memory 82 is used to store program instructions;

The processor 83 is used to execute program instructions stored in the memory, so that the terminal device 80 Perform any of the cell measurement methods or cell switching methods shown above.

Among them, the receiver of the transceiver 81 can be used to perform the transceiver function of the terminal device in the above-mentioned cell measurement method or cell switching method.

Figure 9 is a schematic structural diagram of a network device provided by an embodiment of the present application. Referring to FIG. 9 , the network device 90 may include: a transceiver 91 , a memory 92 , and at least one processor 93 . Transceiver 91 may include a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, a transmitter, a transmitting port or a transmitting interface, and similar descriptions, and the receiver may also be referred to as a receiver, a receiver, a receiving port, a receiving interface, and similar descriptions. For example, the transceiver 91, the memory 92, and the processor 93 are connected to each other through a bus 94.

Memory 92 is used to store program instructions;

The processor 93 is configured to execute program instructions stored in the memory, so that the network device 90 executes any of the above-described cell measurement methods or cell switching methods.

Among them, the receiver of the transceiver 91 can be used to perform the transceiver function of the network device in the above-mentioned cell measurement method or cell switching method.

Embodiments of the present application provide a computer-readable storage medium. Computer-executable instructions are stored in the computer-readable storage medium. When the computer-executable instructions are executed by a processor, they are used to implement the above-mentioned cell measurement method or cell conversion method.

Embodiments of the present application may also provide a computer program product, including a computer program. The computer program product can be executed by a processor. When the computer program product is executed, the cell measurement method executed by any of the terminal devices shown above can be implemented. or cell conversion method.

The transmission equipment, computer-readable storage media, and computer program products of the embodiments of the present application can execute the cell measurement method or the cell conversion method performed by the above-mentioned terminal equipment. The specific implementation process and beneficial effects are as mentioned above, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place. Or it can be distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

Persons of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed by hardware related to program instructions. The aforementioned computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, it implements the steps including the above-mentioned method embodiments; and the aforementioned storage media includes: ROM, RAM, magnetic disks, optical disks and other media that can store program codes.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. scope.

Claims

A cell measurement method, characterized by including:

Carry out the measurement according to the measurement instructions.
The method according to claim 1, characterized in that the measurement reference signal is valid during the operation of the measurement timer.
The method according to claim 2, characterized in that the measurement timer is started after receiving the measurement indication.
The method according to claim 2, characterized in that the measurement reference signal includes at least one of the following:

sync signal block;

Channel state information reference signal.
The method according to claim 1, characterized in that the synchronization signal measurement timing configuration is valid during the operation of the measurement timer.
The method according to claim 5, characterized in that the measurement timer is started after receiving the measurement indication.
The method according to any one of claims 1 to 6, characterized in that the measurement indication is carried by a physical downlink control channel (PDCCH).
The method according to claim 7, characterized in that the PDCCH is a PDCCH command.
The method according to any one of claims 1 to 6, characterized in that the measurement indication is carried by Radio Resource Control (RRC) signaling.
The method according to any one of claims 1-6, characterized in that the measurement indication is carried by the media access control entity MAC CE.
The method according to any one of claims 1-10, characterized in that the method further includes:

Measure according to the measurement object configuration.
The method according to claim 11, characterized in that the measurement object configuration includes a cell identity or a cell physical identity.
The method according to claim 11, characterized in that the measurement object configuration includes cell frequency points.
A cell measurement method, characterized by including:

Send measurement instructions to the terminal device.
The method according to claim 14, characterized in that the measurement indication is carried by PDCCH.
The method according to claim 15, characterized in that the PDCCH is a PDCCH command.
The method according to claim 14, characterized in that the measurement indication is carried by RRC signaling.
The method according to claim 14, characterized in that the measurement indication is carried by MAC CE.
The method according to any one of claims 14-18, characterized in that the method further includes:

Send measurement object configuration to the terminal device.
The method according to claim 19, characterized in that the measurement object configuration includes a cell identity or a cell physical identity.
The method according to claim 19, characterized in that the measurement object configuration includes cell frequency points.
A cell switching method, characterized by including:

Fall back from the conversion target cell to the serving cell.
The method according to claim 22, characterized in that the falling back from the conversion target cell to the serving cell includes:

When the switching timer times out, the switching target cell falls back to the serving cell.
The method according to claim 23, characterized in that the duration of the handover timer is configured by high-layer signaling.
The method according to claim 23, characterized in that the switching timer is started when the terminal device receives the switching instruction.
The method according to claim 23, characterized in that the switching timer is started or restarted when the terminal device detects the PDCCH on the switching target cell.
The method according to claim 23, characterized in that the switching timer is started or restarted when the terminal device receives the scheduling information on the switching target cell.
The method according to claim 22, characterized in that the falling back from the conversion target cell to the serving cell includes:

When receiving a fallback instruction, fallback from the switching target cell to the serving cell.
The method according to claim 28, characterized in that the backoff indication is provided by PDCCH carry; or,

The fallback indication is carried by RRC signaling; or,

The backoff indication is carried by MAC CE.
The method according to claim 22, characterized in that the falling back from the conversion target cell to the serving cell includes:

When the measurement value is less than or equal to the preset threshold, fallback from the conversion target cell to the serving cell.
The method according to claim 30, wherein the measurement value is a measurement value of the conversion target cell, or a measurement value corresponding to a measurement target after conversion to the conversion target cell.
The method according to claim 30, characterized in that the measured value is any one of the following:

Reference signal received power RSRP;

Reference signal reception quality RSRQ;

Signal to interference plus noise ratio SINR.
The method according to claim 30, characterized in that the preset threshold is configured by high-layer signaling.
The method according to claim 22, characterized in that the falling back from the conversion target cell to the serving cell includes:

When a wireless link failure or beam failure occurs, the switching target cell falls back to the serving cell.
A cell switching method, characterized by including:

Instruct the terminal device to fall back from the conversion target cell to the serving cell.
The method according to claim 35, wherein the instructing the terminal device to fall back from the conversion target cell to the serving cell includes:

Instruct the terminal device to fall back from the switching target cell to the serving cell according to a handover timer.
The method according to claim 36, characterized in that the duration of the handover timer is configured by high-layer signaling.
The method according to claim 36, characterized in that the switching timer is started when the terminal device receives the switching instruction.
The method according to claim 36, characterized in that the switching timer is in the The terminal equipment starts or restarts when detecting the PDCCH on the conversion target cell.
The method according to claim 36, characterized in that the switching timer is started or restarted when the terminal device receives the scheduling information on the switching target cell.
The method according to claim 35, wherein the instructing the terminal device to fall back from the conversion target cell to the serving cell includes:

Send a fallback instruction to the terminal device, where the fallback instruction is used to instruct the terminal device to fallback from the conversion target cell to the serving cell.
The method according to claim 41, characterized in that the backoff indication is carried by PDCCH; or,

The fallback indication is carried by RRC signaling; or,

The backoff indication is carried by MAC CE.
The method according to claim 35, wherein the instructing the terminal device to fall back from the conversion target cell to the serving cell includes:

A preset threshold is sent to the terminal device, and the preset threshold instructs the terminal device to fall back from the conversion target cell to the serving cell when the measurement value is less than or equal to the preset threshold.
The method according to claim 43, characterized in that the measurement value is a measurement value of the conversion target cell by the terminal equipment, or a measurement target corresponding to the measurement target after the terminal equipment is converted to the conversion target cell. Measurements.
The method according to claim 43, characterized in that the measured value is any one of the following:

RSRP;

RSRQ;

SINR.
The method according to claim 43, characterized in that the preset threshold is configured by high-layer signaling.
A cell measurement device, characterized by including:

The measurement module is used to measure according to the measurement instructions.
A cell measurement device, characterized by including:

The sending module is used to send measurement instructions to the terminal device.
A cell switching device, characterized by including:

A processing module used to fall back from the conversion target cell to the serving cell.
A cell switching device, characterized by including:

A processing module used to instruct the terminal equipment to fall back from the conversion target cell to the serving cell.
A terminal device, characterized in that it includes: at least one processor and memory;

The memory stores computer execution instructions;

The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell measurement method according to any one of claims 1-13, or causes the at least one processor to execute The cell switching method according to any one of claims 22-34.
A network device, characterized by including: at least one processor and memory;

The memory stores computer execution instructions;

The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell measurement method according to any one of claims 14-21, or causes the at least one processor to execute The cell switching method according to any one of claims 35-46.
A computer-readable storage medium, characterized in that computer-executable instructions are stored in the computer-readable storage medium. When the processor executes the computer-executable instructions, the method described in any one of claims 1-21 is implemented. The cell measurement method or the cell switching method according to any one of claims 22 to 46.
A computer program product, including a computer program, characterized in that when the computer program is executed by a processor, the cell measurement method according to any one of claims 1-21 is implemented, or the cell measurement method according to any one of claims 22-46 is implemented. The cell conversion method described above.