CN110741670B

CN110741670B - Wireless communication method and apparatus

Info

Publication number: CN110741670B
Application number: CN201780091619.XA
Authority: CN
Inventors: 史志华; 陈文洪; 张治�
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2021-04-23
Anticipated expiration: 2037-11-15
Also published as: CN110741670A; WO2019095158A1

Abstract

The embodiment of the application provides a wireless communication method and equipment, which can avoid ping-pong effect of signal selection or reporting and improve communication performance. The method comprises the following steps: after determining that the signal quality difference of a first reference signal measured by a first measurement mode meets a first condition, selecting a second reference signal from at least one reference signal based on a measurement result obtained by measuring at least one reference signal by a second measurement mode, wherein the signal quality of the selected second reference signal is good to meet the second condition, and a first event occurring for the second reference signal meets a third condition or the first event does not occur within a preset or configured range for the second reference signal, wherein the first event is that the signal quality difference measured by the first measurement mode meets the first condition; and reporting the selected second reference signal to network equipment.

Description

Wireless communication method and apparatus

Technical Field

The present application relates to the field of communications, and more particularly, to a wireless communication method and apparatus.

Background

In a New wireless (New Radio, NR) Multi-beam (Multi-beam) system, the whole cell can be covered by different beams, i.e. each beam covers a small range, and the effect of covering the whole cell by multiple beams is achieved by scanning over time (sweepang). Different beams are currently identified by the different signals carried on them. The terminal equipment can measure the signals carried on the wave beams and report corresponding measurement results to the network.

In the NR system, the performance requirement on the communication system is high.

How to improve the communication performance in the aspects of signal measurement and reporting is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and equipment, which can avoid the ping-pong effect of signal reporting and improve the communication performance.

In a first aspect, a wireless communication method is provided, including:

after determining that the signal quality difference of a first reference signal measured by a first measurement mode meets a first condition, selecting a second reference signal from at least one reference signal based on a measurement result obtained by measuring at least one reference signal by a second measurement mode, wherein the signal quality of the selected second reference signal is good to meet the second condition, and a first event occurring for the second reference signal meets a third condition or the first event does not occur within a preset or configured range for the second reference signal, wherein the first event is that the signal quality difference measured by the first measurement mode meets the first condition;

and reporting the selected second reference signal to network equipment.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first measurement manner is a measurement manner for obtaining a block error rate BLER, and the second measurement manner is a measurement manner for obtaining a signal strength.

With reference to the first aspect or any one of the foregoing possible implementation manners of the first aspect, in a possible implementation manner of the first aspect, the first measurement manner is a measurement manner of acquiring a signal strength, and the second measurement manner is a measurement manner of acquiring a block error rate.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, the third condition includes:

a time window elapses after the first event occurs.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, at least one of a start position, an end position, and a time length of the time window is preset or configured by a network side.

the number of times of the second event occurring after the first event occurs is greater than or equal to a specific value.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, the second event is:

an event for performing a measurement using the first measurement mode; or

An event for performing a measurement using the second measurement mode; or

Measuring by using the second measuring mode and ensuring that the signal quality is excellent to meet the second condition; or

And measuring by using the first measuring mode, wherein the signal quality is poor to meet the first condition.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, the specific value is preset or configured by a network side.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, the first reference signal is a channel state information reference signal or a synchronization signal block.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, the at least one reference signal includes a channel state information reference signal and/or a synchronization signal block.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in a possible implementation of the first aspect, the reference signals with different identification IDs are transmitted using different transmission beams.

In a second aspect, a terminal device is provided, configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the terminal device comprises functional modules for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a third aspect, a terminal device is provided that includes a processor, a memory, and a transceiver. The processor, the memory and the transceiver communicate with each other via an internal connection path to transmit control and/or data signals, so that the terminal device performs the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, a computer-readable medium is provided for storing a computer program comprising instructions for performing any one of the above methods or any possible implementation.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform any one of the methods described above or any possible implementation thereof.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the application.

Fig. 2 is a schematic flow chart of a wireless communication method according to an embodiment of the application.

Fig. 3 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 4 is a schematic block diagram of a system chip according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE), a Frequency Division Duplex (FDD) System, a Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System in the future.

Fig. 1 illustrates a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include a network device 110. Network device 100 may be a device that communicates with a terminal device. Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Optionally, the Network device 100 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network-side device in a future 5G Network, or a Network device in a future evolved Public Land Mobile Network (PLMN), or the like.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. Alternatively, terminal Equipment 120 may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or network may also be referred to as a New Radio (NR) system or network.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In a New wireless (New Radio, NR) Multi-beam (Multi-beam) system, the whole cell can be covered by different beams, i.e. each beam covers a small range, and the effect of covering the whole cell by multiple beams is achieved by scanning over time (sweepang). Different beams are currently identified by the different signals carried on them.

Alternatively, different beams are transmitted with different Synchronization Signal blocks (SS blocks, or SSBs) on them, so that different beams can be distinguished by different SS blocks.

Optionally, different Channel State Information Reference signals (CSI-RS) are transmitted on different beams, and the UE identifies the different beams through CSI-RS signals/CSI-RS resources. Thus, different beams can be distinguished by different CSI-RSs.

Alternatively, some beams may have different SSBs transmitted thereon and other beams may have different CSI-RSs transmitted thereon, and thus may be distinguished by differences in CSI-RSs, SSBs, and types of both CSI-RSs and SSBs.

Optionally, in this embodiment of the present application, the signals are different, which may mean that the visible identification information of the signals is different.

The terminal equipment can measure the signals carried on the wave beams and report corresponding measurement results to the network.

The UE needs to measure some signals in a multi-beam system, and determine which signals (or beams) have better transmission quality based on the measurement result, and report related information (e.g., which signals have better quality and their corresponding measurement results) to the network. For example, from the measured N signals, the optimal K (1 < ═ K < N) signals are selected for reporting.

Optionally, in this embodiment of the present application, the beam may not be visible to the terminal device, and what the terminal sees may be different signal identifications.

Alternatively, the terminal device may acquire the signal strength of the signal at the time of measurement, and make a determination based on the signal strength.

Specifically, the Reference signal received Power Reference (L1-RSRP) may be measured, the RSRPs may be compared, and then the optimal K signals may be selected for reporting.

Optionally, during the measurement, the terminal device may obtain a block error rate (BLER) and perform a determination based on the BLER, where the BLER may be a Physical Downlink Control Channel (PDCCH) BLER (logical PDCCH BLER) that is assumed to determine whether quality of beam carrying the PDCCH is good or bad.

Because the terminal device considers the interference it experiences when calculating the explicit PDCCH BLER, while the RSRP considers the strength of the received signal itself. Thus, in this case, the two are not completely identical. For example, if a beam has a strong signal and the terminal device receives strong interference, the result is best if it is determined by RSRP, but it has been determined by the generic PDCCH BLER that it sent beam failure.

If the current working PDCCH beam(s) of the terminal equipment determines to send beam failure through the Hypothetical PDCCH BLER, the terminal equipment needs to measure some beams, and 1 or more new candidate beams are selected according to the measurement result (the new candidate beams are reported to the network side). When selecting a new candidate beam, one way is to measure and select according to RSRP.

If the second method described above is used, a "ping-pong effect" may occur. For example, some 2 beams (beam1 and beam2) currently have good signal energy (assuming it is best among the measured beams), but suffer much interference. When the terminal equipment determines to send beam failure, beam1 is selected to report, wherein the PDCCH is transmitted on beam2 by the terminal equipment (namely beam2 is active PDCCH beam); the network side transmits on the reported beam1 according to the report of the terminal equipment, at this time, the quality of the beam1 as an active PDCCH beam is judged through the Hypothetical PDCCH BLER, and the beam failure is judged because the interference is large. When the beam is reselected again, the beam2 is also selected, and beam failure occurs in the same way as in beam 2. Then beam1 is selected, and beam failure will occur. Thereby entering a "ping-pong effect".

Therefore, the embodiments of the present application provide a method, which can solve the ping-pong effect of beam selection caused by using different measurement methods.

Fig. 2 is a schematic flow chart diagram of a wireless communication method 200 according to an embodiment of the present application. The method 200 may alternatively be applied to the system shown in fig. 1, but is not limited thereto. The method 200 may optionally be performed by a terminal device. The method 200 includes at least some of the following.

In 210, after determining that the signal quality of the first reference signal measured by the first measurement method is poor until a first condition is satisfied, the terminal device selects a second reference signal from the at least one reference signal based on a measurement result obtained by measuring the at least one reference signal by a second measurement method, the selected second reference signal has a signal quality that is superior until the second condition is satisfied, and a first event occurring with respect to the second reference signal has satisfied a third condition or the first event does not occur within a preset or configured range with respect to the second reference signal, where the first event is that the signal quality measured by the first measurement method is poor until the first condition is satisfied.

The measurement of the at least one reference signal based on the second measurement mode may be performed before determining that the signal quality of the first reference signal measured by the first measurement mode is poor enough to satisfy the first condition, or may be performed after determining that the signal quality of the first reference signal measured by the first measurement mode is poor enough to satisfy the first condition.

Optionally, the first measurement mode is a measurement mode for obtaining a block error rate BLER, and the second measurement mode is a measurement mode for obtaining a signal strength.

Optionally, the first measurement mode is a measurement mode for obtaining signal strength, and the second measurement mode is a measurement mode for obtaining a block error rate.

Optionally, the first reference signal is a channel state information reference signal or a synchronization signal block.

Alternatively, the first condition may be that the signal quality of the first reference signal is lower than or equal to a certain value.

Alternatively, the first condition may be that the number of times the signal quality of the first reference signal is lower than or equal to a certain value is accumulated to a predetermined number of times.

Alternatively, the first condition may be that the number of times the signal quality of the first reference signal is continuously lower than or equal to a specific value is accumulated to a predetermined number of times.

Optionally, the at least one reference signal comprises a channel state information reference signal and/or a synchronization signal block.

Optionally, the at least one reference signal may also include the first reference signal.

Optionally, in this embodiment of the present application, the reference signals with different identification IDs are transmitted by using different transmission beams.

Alternatively, the second condition may be that the signal quality of the second reference signal is higher than or equal to a certain value.

Alternatively, the second condition may be that the number of times the signal quality of the second reference signal is higher than or equal to a certain value is accumulated to a predetermined number of times.

Alternatively, the second condition may be that the number of times the signal quality of the second reference signal is continuously higher than or equal to a specific value is accumulated to a predetermined number of times.

In 220, the terminal device reports the selected second reference signal to the network device.

Specifically, the terminal device may report the second reference signal to the network device, and optionally, may carry the measurement result, and the network device may select, according to the report of the terminal device, a beam corresponding to the second reference signal to send a downlink channel, for example, a PDCCH.

In order to more clearly understand the present application, the third condition will be explained below.

In one implementation, the third condition includes: a time window elapses after the first event occurs.

Optionally, at least one of the start position, the end position, and the time length of the time window is preset or configured by the network side.

For example, the network configures the UE for PDCCH transmission on the current beam 0. Meanwhile, if beam failure occurs, the UE can measure the signal strength (e.g., L1-RSRP) of N CSI-RS signals (the N CSI-RSs may or may not include the CSI-RS corresponding to beam0 or the CSI-RS corresponding to beam 0), and 1 of the N CSI-RS signals is selected as a new candidate beam to be reported to the network.

If the beam failure occurs to the beam0, a time window is set, and the UE does not select the beam0 as a new candidate beam to be reported to the network in the specified time window.

The length of the time window may be configured or preset by the network in the UE.

The start or end position of this time window may be configured by the network or preset at the UE.

It should be understood that the above example is beam0, and the same is true for beams of the N CSI-RS signals that are selected by the UE to be reported as a new candidate beam and finally as an active beam.

In one implementation, the third condition includes: the number of times of the second event occurring after the first event occurs is greater than or equal to a specific value.

Optionally, the second event is:

an event for performing a measurement using the first measurement mode; or

An event for performing a measurement using the second measurement mode; or

Optionally, the specific value is preset or configured by the network side.

If the beam failure occurs to the beam0, the UE will not select the beam0 as the new candidate beam to report to the network within a certain number of times:

the number of times can be configured by the network or preset on the terminal device.

Wherein, the mode of remembering time can have the following options:

if the UE selects a new candidate beam, it will increment by 1.

When the UE measures a certain number of measurement values, the number is increased by 1.

The above example is beam0, and the same is true for beams that are selected by the UE to be reported as a new candidate beam and finally as an active beam among the N CSI-RS signals.

In the above embodiments, only the case of performing measurement on the CSI-RS signal is described, and the embodiments are also applicable to SS block measurement, or measurement performed simultaneously on the CSI-RS and the SS block.

It is introduced above that the third condition comprises: a time window has elapsed after the first event occurs, and the third condition comprises: the number of times a second event occurs after the occurrence of the first event is greater than or equal to a specified value, it being understood that the third event includes both: the time window is passed after the first event occurs, and the number of times of the second event occurring after the first event occurs is greater than or equal to a specific value, that is, when the two conditions are satisfied, the terminal device selects the beam corresponding to the second reference signal as the new candidate beam.

Therefore, in the embodiment of the present application, after determining that the signal quality of the first reference signal measured by using the first measurement method is poor enough to satisfy the first condition, based on the measurement result obtained by measuring the at least one reference signal by using the second measurement method, the second reference signal is selected from the at least one reference signal, the signal quality of the selected second reference signal is good enough to satisfy the second condition, and a first event occurring for the second reference signal already satisfies a third condition or does not occur within a preset or configured range for the second reference signal, where the first event is that the signal quality measured by using the first measurement method is poor enough to satisfy the first condition, and therefore, a ping-pong effect of selecting or reporting a signal (or a beam) when the reference signal is measured by using different measurement methods can be avoided, thereby, the communication performance can be improved.

Fig. 3 is a schematic block diagram of a terminal device 400 according to an embodiment of the application. As shown in fig. 3, the terminal device 400 includes a processing unit 410 and a communication unit 420; wherein the content of the first and second substances,

the processing unit 410 is configured to: after determining that the signal quality difference of a first reference signal measured by a first measurement mode meets a first condition, selecting a second reference signal from at least one reference signal based on a measurement result obtained by measuring at least one reference signal by a second measurement mode, wherein the signal quality of the selected second reference signal is good to meet the second condition, and a first event occurring for the second reference signal meets a third condition or the first event does not occur within a preset or configured range for the second reference signal, wherein the first event is that the signal quality difference measured by the first measurement mode meets the first condition; the communication unit 420 is configured to: and reporting the selected second reference signal to network equipment.

Optionally, the third condition comprises:

a time window elapses after the first event occurs.

Optionally, the third condition comprises:

Optionally, the second event is:

an event for performing a measurement using the first measurement mode; or

An event for performing a measurement using the second measurement mode; or

Optionally, the specific value is preset or configured by the network side.

Optionally, reference signals with different identification IDs are transmitted using different transmission beams.

It should be understood that the terminal device 400 may correspond to the terminal device in the method embodiment, and corresponding operations implemented by the terminal device in the method embodiment may be implemented, which are not described herein again for brevity.

Fig. 4 is a schematic structural diagram of a system chip 600 according to an embodiment of the present application. The system chip 600 of fig. 4 includes an input interface 601, an output interface 602, the processor 603, and a memory 604, which may be connected via an internal communication connection, and the processor 603 is configured to execute codes in the memory 604.

Optionally, when the code is executed, the processor 603 implements a method performed by a network device in the method embodiment. For brevity, no further description is provided herein.

Optionally, when the code is executed, the processor 603 implements the method performed by the terminal device in the method embodiment. For brevity, no further description is provided herein.

Fig. 5 is a schematic block diagram of a communication device 700 according to an embodiment of the present application. As shown in fig. 5, the communication device 700 includes a processor 710 and a memory 720. The memory 720 can store program codes, and the processor 710 can execute the program codes stored in the memory 720.

Alternatively, as shown in fig. 5, the communication device 700 may include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate externally.

Optionally, the processor 710 may call the program code stored in the memory 720 to perform corresponding operations of the network device in the method embodiment, which is not described herein for brevity.

Optionally, the processor 710 may call the program code stored in the memory 720 to perform corresponding operations of the terminal device in the method embodiment, which is not described herein for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

after determining that the signal quality difference of a first reference signal measured by a first measurement mode meets a first condition, selecting a second reference signal from at least one reference signal based on a measurement result obtained by measuring at least one reference signal by a second measurement mode, wherein the signal quality of the selected second reference signal is good to meet the second condition, and a first event occurring for the second reference signal meets a third condition or the first event does not occur within a preset or configured range for the second reference signal, wherein the first event is that the signal quality difference measured by the first measurement mode meets the first condition; the second condition includes: a signal quality of the second reference signal is greater than or equal to a particular value; or, the number of times that the signal quality of the second reference signal is higher than or equal to a certain value is accumulated to a predetermined number of times; or, the number of times that the signal quality of the second reference signal is continuously higher than or equal to a certain value is accumulated to a predetermined number of times; the third condition includes: a time window has elapsed after the occurrence of the first event, and/or a number of second events occurring after the occurrence of the first event is greater than or equal to a particular value; the second event is measured by the second measuring mode and the signal quality is excellent to meet the second condition;

and reporting the selected second reference signal to network equipment.

2. The method of claim 1, wherein the first measurement mode is a measurement mode for obtaining a block error rate (BLER), and the second measurement mode is a measurement mode for obtaining a signal strength.

3. The method of claim 1, wherein the first measurement mode is a measurement mode for obtaining signal strength, and the second measurement mode is a measurement mode for obtaining block error rate.

4. The method of claim 1, wherein at least one of a start position, an end position, and a time length of the time window is preset or configured by a network side.

5. The method of claim 1, wherein the specific value is preset or configured by a network side.

6. The method according to any of claims 1 to 5, wherein the first reference signal is a channel state information reference signal or a synchronization signal block.

7. The method according to any of claims 1 to 5, wherein the at least one reference signal comprises a channel state information reference signal and/or a synchronization signal block.

8. The method according to any of claims 1 to 5, characterized in that reference signals with different identification IDs are transmitted using different transmission beams.

9. A terminal device, characterized by comprising a processing unit and a communication unit; wherein the content of the first and second substances,

the processing unit is configured to: after determining that the signal quality difference of a first reference signal measured by a first measurement mode meets a first condition, selecting a second reference signal from at least one reference signal based on a measurement result obtained by measuring at least one reference signal by a second measurement mode, wherein the signal quality of the selected second reference signal is good to meet the second condition, and a first event occurring for the second reference signal meets a third condition or the first event does not occur within a preset or configured range for the second reference signal, wherein the first event is that the signal quality difference measured by the first measurement mode meets the first condition; the second condition includes: a signal quality of the second reference signal is greater than or equal to a particular value; or, the number of times that the signal quality of the second reference signal is higher than or equal to a certain value is accumulated to a predetermined number of times; or, the number of times that the signal quality of the second reference signal is continuously higher than or equal to a certain value is accumulated to a predetermined number of times; the third condition includes: a time window has elapsed after the occurrence of the first event, and/or a number of second events occurring after the occurrence of the first event is greater than or equal to a particular value; the second event is measured by the second measuring mode and the signal quality is excellent to meet the second condition;

the communication unit is configured to: and reporting the selected second reference signal to network equipment.

10. The apparatus of claim 9, wherein the first measurement mode is a measurement mode for obtaining a block error rate (BLER), and the second measurement mode is a measurement mode for obtaining a signal strength.

11. The apparatus of claim 10, wherein the first measurement mode is a measurement mode for obtaining signal strength, and the second measurement mode is a measurement mode for obtaining block error rate.

12. The apparatus of claim 9, wherein at least one of a start position, an end position, and a time length of the time window is preset or configured by a network side.

13. The apparatus of claim 9, wherein the specific value is preset or configured by a network side.

14. The apparatus of any of claims 9-13, wherein the first reference signal is a channel state information reference signal or a synchronization signal block.

15. The apparatus according to any of claims 9 to 13, wherein the at least one reference signal comprises a channel state information reference signal and/or a synchronization signal block.

16. The apparatus according to any of claims 9 to 13, wherein reference signals with different identification IDs are transmitted using different transmission beams.