WO2022205481A1

WO2022205481A1 - Wireless communication method, first device and second device

Info

Publication number: WO2022205481A1
Application number: PCT/CN2021/085470
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-10-06
Also published as: CN116746238A

Abstract

Embodiments of the present application provide a wireless communication method, a first device and a second device. The method is applied to the first device, and comprises: determining a quasi-co-location (QCL) reference of a second physical channel and/or a second signal according to at least one of a preset rule, first control information, a first physical channel and a first signal, the at least one of the first control information, the first physical channel and the first signal being associated with the second physical channel and/or the second signal. According to the solution provided in the present application, the QCL reference of the second physical channel and/or the second signal can be dynamically supported, and the correct transmission probability of the second physical channel and/or the second signal may be increased in the scenario of an LBT failure.

Description

Wireless communication method, first device and second device

technical field

The embodiments of the present application relate to the field of communication, and more particularly, to a wireless communication method, a terminal device, and a network device.

Background technique

In a high-frequency system, when using directional listen-before-talk (LBT), it is usually required that the beamforming used in channel detection needs to cover the corresponding beamforming during signal transmission. In other words, the terminal device can use multiple directions to detect the channel. If the first channel occupancy time is successfully obtained by using the LBT based on the first direction for channel detection, then the beam direction corresponding to the first direction needs to be used in the first channel. Signal transmission is performed during the channel occupied time. In this case, for the preconfigured periodic reference signal within the first channel occupied time, in order to have more transmission opportunities, the beam direction corresponding to the first direction needs to be used for transmission. However, in the related art, the quasi-co-located (Quasi-co-located, QCL) information of the periodic reference signal is configured by Radio Resource Control (Radio Resource Control, RRC). Therefore, how to enhance the way of determining the QCL information of the periodic reference signal, so as to increase the correct transmission probability of the periodic reference signal in a scenario where LBT may fail, is a technical problem that needs to be solved urgently.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a wireless communication method, a first device, and a second device, which can support dynamic determination of a second physical channel and/or a QCL reference of a second signal, and in the scenario of LBT failure, a second physical channel can be added. The correct transmission probability of the channel and/or the second signal.

In a first aspect, the present application provides a wireless communication method, the method is applied to a first device, and the method includes:

determining a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of a preset rule, the first control information, the first physical channel, and the first signal;

Wherein, at least one item of the first control information, the first physical channel, and the first signal is associated with the second physical channel and/or the second signal.

In a second aspect, the present application provides a wireless communication method, the method is applied to a second device, and the method includes:

In a third aspect, a first device is provided for executing the method in the above-mentioned first aspect or each of its implementations. Specifically, the terminal device includes a functional module for executing the method in the first aspect or each implementation manner thereof.

In a fourth aspect, a second device is provided for executing the method in the second aspect or each of its implementations. Specifically, the network device includes a functional module for executing the method in the second aspect or each implementation manner thereof.

In a fifth aspect, a first device is provided, including a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, so as to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a second device is provided, including a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, so as to execute the method in the above-mentioned second aspect or each implementation manner thereof.

In a seventh aspect, a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof. Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes any one of the above-mentioned first to second aspects or each of its implementations method in .

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each implementation manner thereof.

In a ninth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to execute the method in any one of the above-mentioned first to second aspects or the implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.

Based on the above technical solutions, the quasi-co-located QCL reference of the second physical channel and/or the second signal is determined according to at least one of the preset rule, the first control information, the first physical channel, and the first signal, which can support dynamic Determining the QCL reference of the second physical channel and/or the second signal can at least increase the probability of correct transmission of the second physical channel and/or the second signal in the scenario of shared spectrum.

Description of drawings

FIG. 1 is an example of a communication system provided by an embodiment of the present application.

FIG. 2 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.

3 to 9 are schematic diagrams illustrating the positional relationship between at least one of the first control information, the first physical channel, and the first signal, and the second physical channel and/or the second signal provided by the embodiments of the present application.

FIG. 10 is a schematic block diagram of a first device provided by an embodiment of the present application.

FIG. 11 is a schematic block diagram of a second device provided by an embodiment of the present application.

FIG. 12 is a schematic block diagram of a communication device provided by an embodiment of the present application.

FIG. 13 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

FIG. 1 is an example of a communication system according to an embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include a terminal device 110 and a network device 120 . The network device 120 may communicate with the terminal device 110 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120 .

It should be understood that the embodiment of the present application only uses the communication system 100 for exemplary description, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile communication system (Universal mobile communication system) Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication system, etc.

In the communication system 100 shown in FIG. 1 , the network device 120 may be an access network device that communicates with the terminal device 110 . An access network device may provide communication coverage for a particular geographic area, and may communicate with terminal devices 110 (eg, UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, Or a base station (gNB) in an NR system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable Devices, hubs, switches, bridges, routers, or network devices in the future evolved Public Land Mobile Network (PLMN).

The terminal device 110 may be any terminal device, which includes, but is not limited to, a terminal device that adopts a wired or wireless connection with the network device 120 or other terminal devices.

For example, the terminal equipment 110 may refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, user agent, or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handset, a Wireless Local Loop (WLL) station, a Personal Digital Assistant , PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolution networks, etc.

The terminal device 110 may be used for device-to-device (Device to Device, D2D) communication.

The wireless communication system 100 may further include a core network device 130 that communicates with the base station, and the core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, an Access and Mobility Management Function (Access and Mobility Management Function). , AMF), another example, authentication server function (Authentication Server Function, AUSF), another example, user plane function (User Plane Function, UPF), another example, session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of an LTE network, for example, a session management function+core network data gateway (Session Management Function+Core Packet Gateway, SMF+PGW- C) Equipment. It should be understood that the SMF+PGW-C can simultaneously implement the functions that the SMF and the PGW-C can implement. In the process of network evolution, the above-mentioned core network equipment may also be called by other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in this embodiment of the present application.

The various functional units in the communication system 100 may also establish a connection through a next generation network (next generation, NG) interface to implement communication.

For example, the terminal equipment establishes an air interface connection with the access network equipment through the NR interface to transmit user plane data and control plane signaling; the terminal equipment can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); access Network equipment, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network equipment can establish a control plane signaling with the AMF through the NG interface 2 (N2 for short). connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (N4 for short); UPF can exchange user plane data with the data network through NG interface 6 (N6 for short); AMF can communicate with SMF through NG interface 11 (N11 for short) The SMF establishes a control plane signaling connection; the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

FIG. 1 exemplarily shows one base station, one core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and the coverage area of each base station may include other numbers of terminals equipment, which is not limited in this embodiment of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system can be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 120 and a terminal device 110 with a communication function, and the network device 120 and the terminal device 110 may be the devices described above, which will not be repeated here; The communication device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should also be understood that the term "indication" involved in the embodiments of the present application may be a direct indication, an indirect indication, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation. The "correspondence" mentioned in the embodiments of this application may indicate a direct or indirect correspondence relationship between the two, or an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of the present application can be stored in devices (for example, including terminal devices and network devices) in advance by storing corresponding codes, forms, or other methods that can be used for It is implemented in a manner of indicating related information, and the present application does not limit its specific implementation manner. For example, predefined may refer to the definition in the protocol. It should also be understood that, in the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, such as LTE protocol, NR protocol, and related protocols applied in future communication systems, which are not limited in this application. .

In order to facilitate the understanding of the solution provided by this application, the related content of the high frequency is described below.

The research of NR system mainly considers two frequency bands, frequency range 1 (Frequency range 1, FR1) and frequency range 2 (Frequency range 2, FR2). The frequency domain ranges included in FR1 and FR2 are exemplarily described below with reference to Table 1.

Table 1

频段定义Band Definition	对应频段范围Corresponding frequency range
FR1FR1	410MHz～7.125GHz410MHz～7.125GHz
FR2FR2	24.25GHz～52.6GHz24.25GHz～52.6GHz

As shown in Table 1, the frequency domain range of FR1 may be 410MHz to 7.125GHz, and the frequency domain range of FR2 may be 24.25GHz to 52.6GHz.

With the evolution of the NR system, new frequency bands, that is, technologies on high frequencies, are also being studied. The frequency domain range included in the new frequency band is shown in Table 2. For convenience of description, it is represented by FRX in this application. It should be understood that the name of this frequency band should not constitute any limitation. For example, FRX can be FR3.

Table 2

频段定义Band Definition	对应频段范围Corresponding frequency range
FRXFRX	52.6GHz～71GHz52.6GHz～71GHz

As shown in Table 2, the frequency domain range of the FRX can be 52.6 GHz to 71 GHz.

The FRX frequency band includes licensed spectrum as well as unlicensed spectrum. In other words, the FRX frequency band includes dedicated spectrum as well as shared spectrum.

Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communication. This spectrum is generally considered to be shared spectrum, that is, communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for an exclusive spectrum license from the government.

In order to enable various communication systems that use unlicensed spectrum for wireless communication to coexist amicably on this spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, the communication device follows the principle of "listen before talk (LBT)", that is, before the communication device transmits signals on the unlicensed spectrum channel, it needs to perform channel listening first, and only when the channel listening result is that the channel is idle, the Only the communication device can send the signal; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send the signal. For another example, in order to ensure fairness, in one transmission, the duration of signal transmission by the communication device using the channel of the unlicensed spectrum cannot exceed a certain duration. For another example, in order to avoid that the power of the signal transmitted on the channel of the unlicensed spectrum is too large and affects the transmission of other important signals on the channel, the communication device needs to follow the maximum power spectrum when using the channel of the unlicensed spectrum for signal transmission. Density limit.

The subcarrier spacing considered in the FRX frequency band may be larger than the subcarrier spacing in FR2, and the current candidate subcarrier spacing includes at least one of the following: 240 kHz, 480 kHz, and 960 kHz. As an example, the corresponding parameter sets (Numerology) under these candidate subcarrier intervals are shown in Table 3 below.

table 3

子载波间隔subcarrier spacing	符号长度symbol length	NCP长度NCP length	符号带NCP长度Symbol Band NCP Length	时隙长度slot length
240kHz240kHz	4.16μs4.16μs	0.292μs0.292μs	4.452μs4.452μs	62.5μs62.5μs
480kHz480kHz	2.08μs2.08μs	0.146μs0.146μs	2.226μs2.226μs	31.25μs31.25μs
960kHz960kHz	1.04μs1.04μs	0.073μs0.073μs	1.113μs1.113μs	15.625μs15.625μs

As shown in Table 3, each subcarrier interval may correspond to parameter symbol length, NCP length, symbol band NCP length, and time slot length.

To facilitate understanding of the solution provided by this application, the QCL relationship in the NR system is described below.

Quasi Co-Location (QCL) means that the large-scale parameters of the channel experienced by a symbol on one antenna port can be inferred from the channel experienced by a symbol on another antenna port. The large-scale parameters may include delay spread, average delay, Doppler spread, Doppler frequency shift, average gain, and spatial reception parameters.

In the NR system, considering the possible QCL relationship between various reference signals, the above-mentioned large-scale channel parameters can be divided into different QCL types, which is convenient for the system to configure according to different scenarios where the terminal equipment is located. The different QCL type configurations are defined as follows:

'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

'QCL-TypeB': {Doppler shift, Doppler spread};

'QCL-TypeC': {Doppler shift, average delay};

'QCL-TypeD': {Spatial Rx parameter}.

Before the RRC signaling configuration (such as the initial access stage), the terminal device has the default QCL relationship from SSB to DMRS, and the terminal device can obtain the Doppler frequency shift of the channel from the SSB signal through the QCL relationship between SSB and DMRS. , Doppler spread, average delay, delay spread and spatial reception parameters to adjust the filtering parameters of the DMRS channel estimator to receive PDCCH and PDSCH. Among them, the spatial reception parameters are only used for frequency bands above 6 GHz. The above QCL relationship between SSB and DMRS can be expressed as:

SSB→DMRS, including Doppler frequency shift, Doppler spread, average delay, delay spread and spatial reception parameters, among which the spatial reception parameters are only used for frequency bands above 6 GHz.

For frequency bands below 6 GHz, after RRC signaling is configured (for example, in the RRC connected state phase), the QCL relationship between reference signals includes at least one of the following situations:

SSB→TRS, including Doppler frequency shift, average delay; or, corresponding to 'QCL-TypeC'.

TRS→CSI-RS for CSI acquisition, including Doppler shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

TRS→DMRS, including Doppler shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

TRS→CSI-RS for CSI acquisition, including Doppler shift, Doppler spread; or, corresponding to 'QCL-TypeB'.

CSI-RS→DMRS, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

For frequency bands above 6 GHz, after RRC signaling is configured (for example, in the RRC connected state stage), the QCL relationship between reference signals includes at least one of the following situations:

SSB→TRS, including Doppler frequency shift, average delay, and spatial reception parameters; or, corresponding to 'QCL-TypeC'+'QCL-TypeD'.

TRS→CSI-RS for BM, including Doppler frequency shift, Doppler spread, average delay, delay spread; or, corresponding to 'QCL-TypeA'+'QCL-TypeD'.

TRS→CSI-RS for CSI, including Doppler shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

TRS→DMRS for PDCCH, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'+'QCL-TypeD'.

TRS→DMRS for PDSCH, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'+'QCL-TypeD'.

SSB→CSI-RS for BM, including Doppler shift, average delay, and spatial reception parameters; or, corresponding to 'QCL-TypeC'+'QCL-TypeD'.

SSB→CSI-RS for CSI, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

SSB→DMRS for PDCCH (before TRS configuration), including Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA'+'QCL-TypeD '.

SSB→DMRS for PDSCH (before TRS configuration), including Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA'+'QCL-TypeD '.

CSI-RS for BM→DMRS for PDCCH, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

CSI-RS for BM→DMRS for PDSCH, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

CSI-RS for CSI → DMRS for PDSCH, including Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA'+'QCL- TypeD'. Among them, the QCL parameters cannot be directly obtained from the CSI-RS used for CSI.

CSI-RS for BM→CSI-RS for TRS/BM/CSI, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

For different types of reference signals, the acquisition of the QCL reference includes the following situations:

Case 1:

Through RRC configuration, such as periodic CSI-RS or TRS;

Case 2:

Through RRC configuration, activated by MAC CE (referred to as MAC-CE-based indication), for example, through MAC CE indication to activate or deactivate periodic CSI-RS or TRS, or DMRS of PDCCH;

Case 3:

Configured by RRC, activated by MAC CE, and indicated by DCI (referred to as DCI-based indication), such as aperiodic CSI-RS or TRS, or DMRS of PDSCH.

It should be noted that the QCL reference of the DMRS of the PDSCH may also be activated by the MAC CE through the RRC configuration.

The RRC configuration includes: the RRC configuration includes QCL information, where the QCL information is used to determine the QCL reference of the target reference signal.

The MAC-CE-based indication includes: configuring a group of Transmission Configuration Indicator (TCI) states by the RRC, and each TCI state corresponds to a QCL reference. Select one TCI state from the group of TCI states through the MAC CE, and use its corresponding QCL reference as the QCL reference of the target reference signal.

The DCI-based indication includes: configuring M TCI states by the RRC, and each TCI state corresponds to a QCL reference. Selecting at most 8 TCI states from the M TCI states through MAC CE corresponds to the 3-bit TCI indication information in the DCI, wherein, if the value of M is less than or equal to 8, the M TCI states correspond to the TCI in the DCI corresponding to the instruction information. A TCI state is selected from the TCI states corresponding to the TCI indication information in the DCI through the DCI, and the corresponding QCL reference is used as the QCL reference of the target reference signal.

The TCI state contains the QCL reference. Each TCI state can include at most two downlink reference signals, which are respectively used as at most two types of reference sources. Specifically, the TCI state ID is used to identify a TCI state.

For example, each TCI state may include QCL information 1 and QCL information 2.

Among them, a QCL information also includes the following information: QCL type configuration, which can be one of QCL type A, QCL type B, QCL type C, and QCL type D; QCL reference signal configuration, including the cell ID where the reference signal is located, BWP ID and the identification of the reference signal (which can be a CSI-RS resource ID or an SSB index). The QCL type of at least one of QCL information 1 and QCL information 2 must be one of typeA, typeB, and typeC, and the QCL type of the other QCL information (if configured) must be QCL type D.

As an example, the available QCL references for the reference signal may include one of the cases shown in Table 4:

Table 4

QCL参考信号配置1QCL reference signal configuration 1	QCL类型配置1 QCL type configuration 1	QCL参考信号配置2QCL reference signal configuration 2	QCL类型配置2 QCL Type Configuration 2
TRSTRS	QCL type AQCL type A	TRSTRS	QCL type DQCL type D
TRSTRS	QCL type AQCL type A	用于BM的CSI-RSCSI-RS for BM	QCL type DQCL type D
用于CSI的CSI-RSCSI-RS for CSI	QCL type AQCL type A	用于CSI的CSI-RSCSI-RS for CSI	QCL type DQCL type D
SSBSSB	QCL type AQCL type A	SSBSSB	QCL type DQCL type D

As shown in Table 4, QCL type configuration 1 can be QCL type A, QCL type configuration 2 can be QCL type D, QCL reference signal configuration 1 can be any one of TRS, CSI-RS for CSI and SSB, QCL Reference signal configuration 2 may be any one of TRS, CSI-RS for BM, CSI-RS for CSI, and SSB.

In order to enable various communication systems that use unlicensed spectrum for wireless communication to coexist amicably on this spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, the communication device follows the principle of "listen before talk (LBT)", that is, before the communication device transmits signals on the unlicensed spectrum channel, it needs to perform channel listening first, and only when the channel listening result is that the channel is idle, the Only the communication device can send the signal; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send the signal. In order to ensure fairness, in a transmission, the duration of signal transmission by a communication device using an unlicensed spectrum channel cannot exceed the maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT).

In the high frequency band, both licensed spectrum and unlicensed spectrum are included. In the unlicensed spectrum included in the high-frequency band, for countries and regions that have LBT requirements, the LBT mode (ie, the channel access mode) can include omnidirectional LBT, directional LBT, receiving-side auxiliary LBT, and no LBT. . Among them, the channel access mode without LBT may also need to be limited by certain conditions, such as automatic transmit power control ATPC, DFS, long-term interference detection or other interference elimination mechanisms. In addition, it is possible to switch between channel access with LBT and channel access without LBT.

For countries and regions without LBT requirements, it is also necessary to consider whether to introduce certain conditions, such as whether to apply DFS, apply ATPC, apply long-term interference detection, limit a certain duty cycle (duty cycle), limit a certain transmit power, limit MCOT and many more.

FIG. 2 shows a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. The method 200 may be executed by a first device or a second device, and the first device may be the terminal shown in FIG. 1 . A device or a terminal device on a sidelink, the second device may be a network device or a terminal device on the sidelink as shown in FIG. 1 . In other words, the method 200 can be used for uplink and downlink as well as for sidelink. The method 200 is described below by taking the method 200 being executed by the first device as an example.

As shown in FIG. 2, the method 200 may include some or all of the following:

S210, according to at least one of the preset rule, the first control information, the first physical channel, and the first signal, determine the quasi-co-located QCL reference of the second physical channel and/or the second signal;

In this embodiment, the first device determines the quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of the preset rule, the first control information, the first physical channel, and the first signal, It can support to dynamically determine the QCL reference of the second physical channel and/or the second signal, and in the scenario of LBT failure, the correct transmission probability of the second physical channel and/or the second signal can be increased.

It should be noted that, at least one of the first control information, the first physical channel, and the first signal is associated with the second physical channel and/or the second signal, which is understandable is: one, two or all of the first control information, the first physical channel and the first signal have an associated relationship with the second physical channel and/or the second signal. For example, the first control information has an associated relationship with the second physical channel and/or the second signal; in another example, the first physical channel and/or the first signal and the second physical channel The channel and/or the second signal have an associated relationship; this is not specifically limited in this embodiment of the present application.

It should also be noted that this application aims to determine the quasi-co-located QCL of the second physical channel and/or the second signal according to at least one of the preset rule, the first control information, the first physical channel, and the first signal. refer to. In other words, receiving the first control information, the first physical channel, and the first signal is not a necessary condition. In other words, even if the first control information, the first physical channel, and the first signal are not received, the QCL reference of the second physical channel and/or the second signal needs to be determined.

In some embodiments, the QCL reference includes a reference signal having a QCL relationship with the second physical channel and/or the second signal. The QCL type associated with the QCL reference includes at least one of the following: QCL type A, QCL type B, QCL type C, and QCL type D. Optionally, the QCL reference may also be referred to as the QCL reference information or the QCL information.

In some embodiments, the QCL reference of the second physical channel is used to receive the second physical channel, and the QCL reference of the second signal is used to receive the second signal. In other words, the QCL reference (eg QCL type-D and beam correlation) is the information that needs to be used when receiving a physical channel or signal. If the QCL reference is wrong (eg, the beam is wrong), the physical channel or signal may not be received. Of course, the QCL reference of the second physical channel can also be used to demodulate the second physical channel, and the QCL reference of the second signal can also be used to demodulate the second signal.

In some embodiments, the first control information is not associated with the first physical channel and/or the first signal.

In some embodiments, the first control information is associated with the first physical channel and/or the first signal, eg, the first DCI schedules the first PDSCH.

In some embodiments, the S210 may include:

The QCL reference of the second physical channel and/or the second signal is determined according to a preset rule.

In some implementations, the second physical channel and/or the second physical channel and/or the second physical channel and/or the QCL reference of two signals; or, in the absence of the first control information, the first physical channel or the first signal, according to the closest distance to the second physical channel and/or the second signal The QCL reference corresponding to the CORESET in the time-domain unit determines the QCL reference of the second physical channel and/or the second signal; In the case of the first signal, determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference configured by the high layer; or, in the absence of the first control information, the first physical channel or In the case that the first signal is not configured with QCL information by a higher layer, the second physical channel and/or the QCL reference corresponding to the CORESET in the time domain unit closest to the second signal is determined to determine the second signal. QCL reference for the physical channel and/or the second signal.

It should be noted that, in this embodiment of the present application, the receiving time of the first control information, the first physical channel or the first signal may be received on the second physical channel and/or the second signal Before the time, it can also be received at the same time, which is not specifically limited in this application. It should be understood that, in some special cases, the reception time of the first physical channel or the first signal may also be after the reception time of the second physical channel and/or the second signal.

In some implementations, the most recent time domain unit may be the most recent time domain unit that includes CORESET.

In some implementations, the QCL reference corresponding to the CORESET in the time domain unit closest to the second physical channel and/or the second signal is used as the second physical channel and/or the second signal. QCL reference.

In some implementation manners, the second physical channel and/or the second physical channel and/or the second physical channel and/or the second physical channel are determined according to a QCL reference corresponding to a CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal. QCL reference of two signals; or, determining the second physical channel and/or the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal QCL reference of the second signal; or, determining the second physical channel and/or the QCL reference corresponding to the last CORESET in the time domain unit closest to the second physical channel and/or the second signal QCL reference for the second signal.

In some implementations, the QCL corresponding to the CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal is used as the second physical channel and/or the second physical channel. QCL reference of two signals; or, taking the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal as the second physical channel and/or the QCL reference QCL reference of the second signal; or, taking the QCL reference corresponding to the last CORESET in the time domain unit closest to the second physical channel and/or the second signal as the second physical channel and/or the QCL reference QCL reference for the second signal.

As an example, the second signal is a periodic CSI-RS, the UE receives the PDSCH scheduled by the network device, and the symbols occupied by the scheduled PDSCH and the symbols occupied by the periodic CSI-RS at least partially overlap in the time domain or the scheduled PDSCH occupied The symbol occupied by the periodic CSI-RS is located in the same time slot as the symbol occupied by the periodic CSI-RS, then the periodic CSI-RS and the scheduled PDSCH have a QCL relationship, or the QCL reference of the periodic CSI-RS and the QCL reference of the scheduled PDSCH are the same. Alternatively, if the UE is not scheduled with PDSCH on the time slot where the periodic CSI-RS is located, the UE receives the periodic CSI-RS according to a preset rule. For example, the second signal is a periodic CSI-RS, and the QCL reference of the periodic CSI-RS is determined according to the QCL reference of the CORESET.

In some implementations, the time domain unit includes one of the following: one or more slots, a slot group, one or more symbols, a symbol group, one or more subframes, a subframe group, a half frame.

In some implementations, the time domain unit is determined based on the first subcarrier spacing. Optionally, the first subcarrier spacing may be a reference subcarrier spacing, or a subcarrier spacing for activating BWP, or a subcarrier spacing corresponding to the second physical channel and/or the second signal.

In some implementations, the first subcarrier spacing is predefined.

In some implementations, the first subcarrier spacing is configured by a network device.

In some embodiments, the S210 may include:

In the case of receiving the first control information, the QCL reference of the second physical channel and/or the second signal is determined according to the first control information and/or a preset rule.

In some implementation manners, when the time domain offset value between receiving the first control information and receiving the second physical channel and/or the second signal is greater than or equal to a preset threshold, according to the first a control information to determine the QCL reference of the second physical channel and/or the second signal; or, when receiving the first control information and receiving the second physical channel and/or the second signal When the domain offset value is smaller than the preset threshold, the QCL reference of the second physical channel and/or the second signal is determined according to a preset rule.

In some implementations, the first control information includes transmission configuration indication TCI information, where the TCI information is used to indicate a QCL reference of the second physical channel and/or the second signal.

In other words, the first device may determine the QCL reference of the second physical channel and/or the second signal according to the TCI information.

In some implementation manners, the preset threshold is determined by the terminal device according to the terminal capability, and/or the preset threshold is reported and configured by the network device to the terminal device according to the capability of the terminal device.

In some embodiments, the S210 may include:

When the first physical channel has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first physical channel the QCL reference of the second signal.

In some implementations, the second physical channel is a physical shared channel, and the first physical channel is CORESET.

In other words, when the CORESET has an associated relationship with the second physical channel and/or the second signal, the second physical channel and/or the second signal is determined according to the QCL reference of the CORESET The QCL reference.

In some implementations, when the first physical channel exists and the first physical channel has an associated relationship with the second physical channel and/or the second signal, then according to the first physical channel The QCL reference of the channel determines the QCL reference of the second physical channel and/or the second signal. Optionally, the existence of the first physical channel may be understood as receiving or about to receive the first physical channel, for example, the scheduling information of the first physical channel has been received, but the first physical channel has not yet been received. , indicating that the first physical channel is about to be received.

In some implementations, when the first physical channel has an associated relationship with the second physical channel and/or the second signal, the QCL reference of the first physical channel is used as the second physical channel QCL reference for the physical channel and/or the second signal.

In some implementations, the first physical channel has an associated relationship with the second physical channel and/or the second signal, including at least one of the following:

the first physical channel is continuous with the second physical channel and/or the second signal in the time domain;

the first physical channel is located in the same time domain unit as the second physical channel and/or the second signal; or

The first time domain resource corresponding to the first physical channel and the second time domain resource corresponding to the second physical channel and/or the second signal partially or completely overlap in the time domain.

In some implementations, the same time domain unit includes, but is not limited to, a time slot, or multiple time slots, or a time slot or subframe determined with an indicated subcarrier spacing (eg, 120 kHz).

As an example, the second signal is periodic CSI-RS, the UE receives the PDSCH scheduled by the network device, the scheduled PDSCH includes the periodic CSI-RS, and the periodic CSI-RS and the scheduled PDSCH have a QCL relationship.

It should be noted that the length of the same time-domain unit and the length of the time-domain unit closest to the second physical channel and/or the second signal may be equal or unequal. This is not limited. In other words, the time domain unit closest to the second physical channel and/or the second signal is the first time domain unit, the same time domain unit is the second time domain unit, and the first time domain unit The length of and the length of the second time domain unit may or may not be equal, which is not limited in this application.

In some implementations, the first physical channel is scheduled by the first control information, where the first control information includes transmission configuration indication TCI information, or the first control information does not include transmission The configuration indicates TCI information.

In some embodiments, the S210 may include:

In the case where the first signal has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first signal Two-signal QCL reference.

In some implementations, when the first signal exists and the first signal has an associated relationship with the second physical channel and/or the second signal, then according to the QCL of the first signal The reference determines the QCL reference of the second physical channel and/or the second signal. Optionally, the existence of the first signal can be understood as receiving or about to receive the first signal, for example, when the scheduling information of the first signal has been received, but the first signal has not yet been received, it indicates that the first signal is about to be received. The first signal is received.

In some implementations, when the first signal has an associated relationship with the second physical channel and/or the second signal, the QCL of the first signal is referred to as the second physical channel and/or the QCL reference of the second signal.

In some implementations, the first signal having an associated relationship with the second physical channel and/or the second signal includes at least one of the following:

the first signal is continuous in the time domain with the second physical channel and/or the second signal;

the first signal is located in the same time domain unit as the second physical channel and/or the second signal; or

The first signal and the corresponding third time domain resource and the second physical channel and/or the fourth time domain resource corresponding to the second signal partially or completely overlap in the time domain.

In some implementations, the first signal is scheduled by the first control information, where the first control information includes transmission configuration indication TCI information, or the first control information does not include transmission configuration Indicates TCI information.

In some embodiments, the method 200 may further include:

Acquire pre-configuration information of the second physical channel and/or the second signal.

In other words, after the first device acquires the preconfigured information of the second physical channel and/or the second signal, the first device according to the preset rule, the first control information, the first At least one of a physical channel and the first signal determines a QCL reference for the second physical channel and/or the second signal.

In some embodiments, the second physical channel includes a periodic physical channel, and/or the second signal includes a periodic reference signal.

In some embodiments, the second physical channel and/or the second signal includes at least one of the following:

Periodic channel state information reference signal CSI-RS, tracking reference signal TRS, semi-persistent scheduling physical downlink shared channel SPS PDSCH, control resource set CORESET or physical downlink control channel PDCCH transmitted in CORESET.

In some implementations, the periodic CSI-RS may include CSI-RS for CSI measurement and/or BM.

In some implementations, the first physical channel includes a scheduled physical channel; and/or the first signal includes a scheduled reference signal.

In some implementations, the first control information includes downlink control information DCI, and/or the first physical channel includes a scheduled physical downlink shared channel PDSCH, and/or the first signal includes scheduled CSI -RS.

Periodic channel state information reference signal CSI-RS in sidelink, tracking reference signal TRS in sidelink, semi-persistent scheduling physical sideline shared channel SPS PSSCH, control resource set CORESET or physical side transmitted in CORESET row control channel PSCCH.

In some implementations, the periodic CSI-RS in the sidelink may include CSI-RS for CSI measurement and/or BM.

In some implementations, the first physical channel includes a physical channel in a scheduled sidelink; and/or the first signal includes a reference signal in a scheduled sidelink.

In some implementations, the first control information includes sideline control information SCI, and/or the first physical channel includes a scheduled physical sideline shared channel PSSCH, and/or the first signal includes a scheduler The channel state information reference signal CSI-RS in the sidelink.

The solution of the present application will be described below with reference to specific embodiments.

Example 1:

In this embodiment, it is assumed that the first control information is the first downlink DCI. The first downlink DCI is associated with the second physical channel and/or the second signal. The behavior of the terminal device may include at least one of the following.

For the CORESET scheduling PDSCH, assuming that the high-level parameter configured by the terminal device, such as tci-PresentInDCI, is set to enable (enable), then the PDCCH corresponding to DCI format 1_1 transmitted using the CORESET includes a transmission configuration indication (Transmission Configuration Indication, TCI )area. Alternatively, if tci-PresentInDCI is set to be disabled or tci-PresentInDCI is not configured, the PDCCH corresponding to DCI format 1_1 transmitted using the CORESET does not include the TCI field.

If the terminal device receives the first downlink DCI, the first downlink DCI does not include the TCI field, and when receiving the first downlink DCI and receiving the second physical channel and/or the second signal When the time domain offset value is greater than or equal to a preset threshold (for example, timeDurationForQCL), the terminal device assumes that the TCI reference of the second physical channel and/or the second signal and the CORESET for transmitting the first downlink DCI The TCI reference is the same.

If the terminal device receives the first downlink DCI, the first downlink DCI includes a TCI field, and the time between receiving the first downlink DCI and receiving the second physical channel and/or the second signal When the domain offset value is greater than or equal to a preset threshold (for example, timeDurationForQCL), the terminal device determines the second physical channel and/or the second physical channel according to the TCI information indicated by the TCI domain in the first downlink DCI. QCL reference for the second signal.

When the terminal device is configured with the second physical channel and/or the second signal includes multi-slot transmission, the indicated TCI state shall be determined according to the set of TCI states activated on the first time slot in the multi-slot, And the terminal equipment should assume that the TCI state sets activated on the multi-slots are the same. In other words, if there are different TCI state sets activated by the MAC CE in the multi-slots, the terminal device shall determine the TCI state according to the activated TCI state set in the first time slot and the TCI state indication information in the first downlink DCI. Determine TCI status.

When the terminal device is configured with the second physical channel and/or the second signal including multi-slot transmission, the second physical channel and/or the second signal transmitted on the multi-slot have the same QCL refer to.

If the terminal device receives the scheduled first downlink DCI, regardless of whether the first downlink DCI includes or does not include the TCI field, when receiving the first downlink DCI and receiving the second physical channel and/or the second When the time domain offset value between the signals is smaller than a preset threshold (for example, timeDurationForQCL), it is determined according to the QCL reference corresponding to the CORESET in the time domain unit closest to the second physical channel and/or the second signal QCL reference of the second physical channel and/or the second signal. For example, determining the QCL of the second physical channel and/or the second signal according to the QCL reference corresponding to the CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal or, according to the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal, determine the value of the second physical channel and/or the second signal. QCL reference; or, according to the QCL reference corresponding to the last CORESET in the time domain unit closest to the second physical channel and/or the second signal, determine the value of the second physical channel and/or the second signal. QCL reference.

Example 2:

In this embodiment, the QCL reference of the second physical channel and/or the second signal is determined according to a preset rule. Specifically, the QCL reference of the second physical channel and/or the second signal is determined according to the QCL reference corresponding to the CORESET in the time domain unit closest to the second physical channel and/or the second signal.

3 to 8 are schematic diagrams of determining the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to CORESET according to the embodiments of the present application.

As shown in FIG. 3 , the terminal device may determine the second physical channel according to the QCL reference corresponding to the CORESET with the smallest control resource set CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal and/or the QCL reference of the second signal. In FIG. 3, it is assumed that the length of one time domain unit is one time slot, that is, it includes 14 symbols, and the time domain unit closest to the second physical channel and/or the second signal is the first time slot , the control resource set (CORESET) in the time domain unit closest to the second physical channel and/or the second signal includes CORESET#1 and CORESET#2, that is, the CORESET with the smallest CORESET identifier is CORESET#1, this The terminal device may determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and/or the second signal.

As shown in FIG. 4 , the terminal device may determine the second physical channel according to the QCL reference corresponding to the CORESET with the smallest control resource set CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal and/or the QCL reference of the second signal. In FIG. 4 , it is assumed that the length of one time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots, and it is assumed that it is closest to the second physical channel and/or the second signal The time domain unit is the first time slot group, and the control resource set (CORESET) in the time domain unit closest to the second physical channel and/or the second signal includes CORESET#1 and CORESET#2, namely The CORESET with the smallest CORESET identification is CORESET#1, and the terminal device may determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and/or the second signal.

As shown in FIG. 5 , the terminal device may determine the second physical channel according to the QCL reference corresponding to the CORESET with the smallest control resource set CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal and/or the QCL reference of the second signal. In FIG. 5, it is assumed that the length of one time domain unit is a time slot group (or one or more time slots) determined according to the reference subcarrier spacing, for example, it is assumed that the reference subcarrier spacing is 120 kHz and the one time slot group includes 2 time slots, the subcarrier spacing of the second physical channel and/or the second signal is 480 kHz, and the control resource in the time domain unit closest to the second physical channel and/or the second signal The set (CORESET) includes CORESET#1 and CORESET#2, that is, the CORESET with the smallest CORESET identifier is CORESET#1, and the terminal device can determine the QCL reference of CORESET#1 as the second physical channel and/or the first Two-signal QCL reference.

As shown in FIG. 6 , the terminal device may determine the second physical channel according to the QCL reference corresponding to the first CORESET or the last CORESET in the time domain unit closest to the second physical channel and/or the second signal and/or the QCL reference of the second signal. In FIG. 6, it is assumed that the length of one time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots and is closest to the second physical channel and/or the second signal The time domain unit is the first time slot group, and the first control resource set (CORESET) in the time domain unit closest to the second physical channel and/or the second signal is CORESET#2, at this time The terminal device may determine the QCL reference of CORESET#2 as the QCL reference of the second physical channel and/or the second signal.

As shown in FIG. 7 , it is assumed that the first control information is associated with the second physical channel and/or the second signal. If the time domain offset value between receiving the first control information and receiving the second physical channel and/or the second signal is smaller than a preset threshold (eg timeDurationForQCL), the terminal device can and/or the QCL reference corresponding to the CORESET with the smallest CORESET identifier or the first CORESET or the last CORESET in the nearest time domain unit of the second signal to determine the QCL reference of the second physical channel and/or the second signal . In FIG. 7 , it is assumed that the length of one time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots, and the one closest to the second physical channel and/or the second signal The time domain unit is the second time slot group, and the control resource set (CORESET) in the time domain unit closest to the second physical channel and/or the second signal only includes CORESET#1. In this example, The first control information is transmitted through the resources in CORESET#1, and at this time, the terminal device may determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and/or the second signal.

As shown in FIG. 8 , it is assumed that the first control information is associated with the second physical channel and/or the second signal. If the time domain offset value between receiving the first control information and receiving the second physical channel and/or the second signal is greater than or equal to a preset threshold (eg timeDurationForQCL), the terminal device may transmit the first control information according to The QCL reference corresponding to the CORESET determines the QCL reference of the second physical channel and/or the second signal. In FIG. 8 , it is assumed that the length of one time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots, and the first control information is transmitted through the resources in CORESET#2. At this time, the terminal The device may determine the QCL reference of CORESET#2 as the QCL reference of the second physical channel and/or the second signal.

Example 3:

In this embodiment, the first physical channel and/or the first signal has an associated relationship with the second physical channel and/or the second signal, and the terminal device associates the first physical channel or signal with the first physical channel or the signal. The QCL reference of the second physical channel is used as the QCL reference of the second physical channel and/or the second signal.

FIG. 9 is a schematic diagram of an association relationship between the first physical channel and/or the first signal and the second physical channel and/or the second signal according to an embodiment of the present application.

The first control information schedules the transmission of the first physical channel, and the TCI indication information in the first control information is used to indicate the QCL reference of the first physical channel. If the time domain offset value between the two is greater than or equal to a preset threshold (for example, timeDurationForQCL), the QCL reference of the first physical channel is determined according to the TCI indication information. Since the time domain resource corresponding to the second physical channel and/or the second signal and the time domain resource corresponding to the first physical channel partially or completely overlap in the time domain, the terminal device can The QCL reference of the physical channel determines the QCL reference of the second physical channel and/or the second signal; or, in this case, the QCL reference of the second physical channel and/or the second signal is based on the The TCI indication information is determined.

As shown in FIG. 9 , the first DCI schedules the first PDSCH transmission, and the TCI indication information in the first DCI is used to indicate the QCL reference of the first PDSCH. If the time domain offset value between the two is greater than or equal to a preset threshold (for example, timeDurationForQCL), the QCL reference of the first PDSCH is determined according to the TCI indication information. Since the time domain resource corresponding to the second physical channel and/or the second signal overlaps the time domain resource corresponding to the first PDSCH in the time domain, the terminal device can refer to the QCL according to the first PDSCH determining the QCL reference of the second physical channel and/or the second signal; or, in this case, determining the QCL reference of the second physical channel and/or the second signal according to the TCI indication information.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple modifications all belong to the protection scope of the present application. For example, the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, this application does not describe any possible combination. State otherwise. For another example, the various embodiments of the present application can also be combined arbitrarily, as long as they do not violate the idea of the present application, they should also be regarded as the content disclosed in the present application.

It should also be understood that, in the various method embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the present application. The implementation of the embodiments constitutes no limitation. In addition, in the embodiments of the present application, the terms "downlink" and "uplink" are used to indicate the transmission direction of signals or data, wherein "downlink" is used to indicate that the transmission direction of signals or data is from the site to the user equipment of the cell In the first direction, "uplink" is used to indicate that the transmission direction of the signal or data is the second direction sent from the user equipment of the cell to the site. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction.

The method 200 can be described in detail above from the perspective of the first device, and the method 200 will be described below from the perspective of the second device. It should be noted that the second device may be a network device as shown in FIG. 1 , or may be a terminal device on a sidelink, which is not specifically limited in this embodiment of the present application.

As shown in FIG. 2, the method 200 may include:

In some embodiments, the S210 may include:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the control resource set CORESET in the time domain unit closest to the second physical channel and/or the second signal; or

In the absence of the first control information, the first physical channel or the first signal, according to the CORESET correspondence in the time domain unit closest to the second physical channel and/or the second signal the QCL reference to determine the QCL reference of the second physical channel and/or the second signal; or

In the absence of the first control information, the first physical channel or the first signal, determining the QCL reference of the second physical channel and/or the second signal according to a QCL reference configured by a higher layer; or

In the case where there is no first control information, the first physical channel or the first signal, and no QCL information is configured by a higher layer, according to the distance to the second physical channel and/or the second signal The QCL reference corresponding to the CORESET in the time domain unit of the second physical channel determines the QCL reference of the second physical channel and/or the second signal.

In some embodiments, the S210 may include:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal;

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal;

The QCL reference of the second physical channel and/or the second signal is determined according to the QCL reference corresponding to the last CORESET in the time domain unit closest to the second physical channel and/or the second signal.

In some embodiments, the time domain unit includes one of the following:

One or more slots, groups of slots, one or more symbols, groups of symbols, one or more subframes, groups of subframes, fields.

In some embodiments, the S210 may include:

In the case of sending the first control information, the QCL reference of the second physical channel and/or the second signal is determined according to the first control information and/or a preset rule.

In some embodiments, the S210 may include:

In the case that the time domain offset value between sending the first control information and sending the second physical channel and/or the second signal is greater than or equal to a preset threshold, determine the first control information according to the QCL reference of the second physical channel and/or the second signal; or,

In the case that the time domain offset value between sending the first control information and sending the second physical channel and/or the second signal is smaller than a preset threshold, determine the second physical channel and/or the second physical channel according to a preset rule /or the QCL reference of the second signal.

In some embodiments, the first control information includes transmission configuration indication TCI information, where the TCI information is used to indicate a QCL reference of the second physical channel and/or the second signal.

In some embodiments, the S210 may include:

In some embodiments, the first physical channel having an associated relationship with the second physical channel and/or the second signal includes at least one of the following:

In some embodiments, the first physical channel is scheduled by the first control information, wherein the first control information includes transmission configuration indication TCI information, or the first control information does not include transmission The configuration indicates TCI information.

In some embodiments, the S210 may include:

In some embodiments, the first signal having an associated relationship with the second physical channel and/or the second signal includes at least one of the following:

In some embodiments, the first signal is scheduled by the first control information, wherein the first control information includes transmission configuration indication TCI information, or the first control information does not include transmission configuration Indicates TCI information.

In some embodiments, the method 200 may further include:

Pre-configuration information of the second physical channel and/or the second signal is sent.

In some embodiments, the first control information includes downlink control information DCI, and/or the first physical channel includes a scheduled physical downlink shared channel PDSCH, and/or the first signal includes scheduled CSI -RS.

In some embodiments, the first control information includes sideline control information SCI, and/or the first physical channel includes a scheduled physical sideline shared channel PSSCH, and/or the first signal includes a scheduler The channel state information reference signal CSI-RS in the sidelink.

It should be understood that the steps on the second device side in the method 200 may refer to the corresponding steps on the first device side, which are not repeated here for brevity.

The method embodiments of the present application are described in detail above with reference to FIGS. 1 to 9 , and the apparatus embodiments of the present application are described in detail below with reference to FIGS. 10 to 13 .

FIG. 10 is a schematic block diagram of a first device 300 according to an embodiment of the present application.

As shown in FIG. 10 , the first device 300 may include:

A processing unit 310, configured to determine a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of a preset rule, the first control information, the first physical channel, and the first signal;

In some embodiments, the processing unit 310 is specifically configured to:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal; or

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal; or

In some embodiments, the time domain unit includes one of the following:

In some embodiments, the processing unit 310 is specifically configured to:

In a case that the time domain offset value between the reception of the first control information and the reception of the second physical channel and/or the second signal is greater than or equal to a preset threshold, determine the first control information according to the QCL reference of the second physical channel and/or the second signal; or,

In the case that the time domain offset value between receiving the first control information and receiving the second physical channel and/or the second signal is smaller than a preset threshold, determine the second physical channel and/or the second physical channel according to a preset rule /or the QCL reference of the second signal.

In some embodiments, the processing unit 310 is specifically configured to:

In some embodiments, the first device 300 may further include:

A communication unit, configured to acquire preconfigured information of the second physical channel and/or the second signal.

FIG. 11 is a schematic block diagram of a second device 400 according to an embodiment of the present application.

As shown in FIG. 11 , the second device 400 may include:

A processing unit 410, configured to determine a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of a preset rule, the first control information, the first physical channel, and the first signal;

In some embodiments, the processing unit 410 is specifically configured to:

In some embodiments, the time domain unit includes one of the following:

In some embodiments, the processing unit 410 is specifically configured to:

In the case where the first physical channel has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first physical channel the QCL reference of the second signal.

In some embodiments, the processing unit 410 is specifically configured to:

In some embodiments, the second device 400 may further include:

A communication unit, configured to send the preconfigured information of the second physical channel and/or the second signal.

It should be understood that the apparatus embodiments and the method embodiments may correspond to each other, and similar descriptions may refer to the method embodiments. Specifically, the first device 300 shown in FIG. 10 may correspond to executing the method 200 of the embodiments of the present application, and the aforementioned and other operations and/or functions of the units in the first device 300 are respectively for the purpose of realizing the various operations and/or functions in FIG. 2 . Corresponding processes in the method, similarly, the second device 400 shown in FIG. 11 may also correspond to the method 200 for executing the embodiments of the present application, and the aforementioned and other operations and/or functions of the units in the second device 400 are respectively In order to implement the corresponding processes in each method in FIG. 2 ; for the sake of brevity, details are not repeated here.

The communication device of the embodiments of the present application is described above from the perspective of functional modules with reference to the accompanying drawings. It should be understood that the functional modules can be implemented in the form of hardware, can also be implemented by instructions in the form of software, and can also be implemented by a combination of hardware and software modules. Specifically, the steps of the method embodiments in the embodiments of the present application may be completed by hardware integrated logic circuits in the processor and/or instructions in the form of software, and the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as hardware The execution of the decoding processor is completed, or the execution is completed by a combination of hardware and software modules in the decoding processor. Optionally, the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.

For example, the processing unit and the communication unit referred to above may be implemented by a processor and a transceiver, respectively.

FIG. 12 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application.

As shown in FIG. 12 , the communication device 500 may include a processor 510 .

The processor 510 may call and run a computer program from the memory to implement the methods in the embodiments of the present application.

As shown in FIG. 12 , the communication device 500 may also include a memory 520 .

Wherein, the memory 520 may be used to store instruction information, and may also be used to store codes, instructions, etc. executed by the processor 510 . The processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application. The memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .

As shown in FIG. 12 , the communication device 500 may also include a transceiver 530 .

The processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices. Transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, and the number of the antennas may be one or more.

It should be understood that each component in the communication device 500 is connected through a bus system, wherein the bus system includes a power bus, a control bus and a status signal bus in addition to a data bus.

It should also be understood that the communication device 500 may be the first device of this embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the first device in each method of the embodiments of the present application, that is, the present application implements The communication device 500 of the example may correspond to the first device 300 in the embodiment of the present application, and may correspond to executing the method 200 according to the embodiment of the present application, which is not repeated here for brevity. Similarly, the communication device 500 may be the second device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the second device in each method of the embodiment of the present application. That is, the communication device 500 in the embodiment of the present application may correspond to the second device 400 in the embodiment of the present application, and may correspond to executing the method 200 according to the embodiment of the present application, which is not repeated here for brevity.

In addition, the embodiment of the present application also provides a chip.

For example, the chip may be an integrated circuit chip, which has a signal processing capability, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like. Optionally, the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.

FIG. 13 is a schematic structural diagram of a chip 600 according to an embodiment of the present application.

As shown in FIG. 13 , the chip 600 includes a processor 610 .

The processor 610 may call and run a computer program from the memory to implement the methods in the embodiments of the present application.

As shown in FIG. 13 , the chip 600 may further include a memory 620 .

The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application. The memory 620 may be used to store instruction information, and may also be used to store codes, instructions and the like executed by the processor 610 . The memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .

As shown in FIG. 13 , the chip 600 may further include an input interface 630 .

The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

As shown in FIG. 13 , the chip 600 may further include an output interface 640 .

The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

It should be understood that the chip 600 can be applied to the first device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first device in each method of the embodiments of the present application, and can also implement the embodiments of the present application. For the sake of brevity, the corresponding processes implemented by the second device in each method will not be repeated here.

It should also be understood that various components in the chip 600 are connected through a bus system, wherein the bus system includes a power bus, a control bus and a status signal bus in addition to a data bus.

The processors referred to above may include, but are not limited to:

General-purpose processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates Or transistor logic devices, discrete hardware components, and so on.

The processor may be used to implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

The memory mentioned above includes but is not limited to:

Volatile memory and/or non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM).

It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program. The computer-readable storage medium stores one or more programs comprising instructions that, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to perform the methods of the method embodiments .

Optionally, the computer-readable storage medium can be applied to the first device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For brevity, It is not repeated here. Optionally, the computer-readable storage medium can be applied to the second device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For brevity, It is not repeated here.

The embodiments of the present application also provide a computer program product, including a computer program.

Optionally, the computer program product can be applied to the first device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first device in each method of the embodiments of the present application. For brevity, here No longer. Optionally, the computer program product can be applied to the second device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of the present application. For brevity, here No longer.

A computer program is also provided in the embodiments of the present application. When the computer program is executed by a computer, it enables the computer to perform the method of the method embodiment.

Optionally, the computer program can be applied to the first device in the embodiment of the present application, and when the computer program is run on the computer, the computer is made to execute the corresponding processes implemented by the first device in each method of the embodiment of the present application, For brevity, details are not repeated here. Optionally, the computer program can be applied to the second device in the embodiments of the present application, and when the computer program is run on the computer, the computer is made to execute the corresponding processes implemented by the second device in each method of the embodiments of the present application, For brevity, details are not repeated here.

In addition, an embodiment of the present application also provides a communication system, and the communication system may include the above-mentioned first device and second device to form a communication system as shown in FIG. 1 , which is not repeated here for brevity . It should be noted that the terms "system" and the like in this document may also be referred to as "network management architecture" or "network system" and the like.

It should also be understood that the terms used in the embodiments of the present application and the appended claims are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. For example, as used in the embodiments of this application and the appended claims, the singular forms "a," "the," "above," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. meaning.

Those skilled in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Experts may use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present application. If implemented in the form of a software functional unit and sold or used as a stand-alone product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art or the parts of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk and other media that can store program codes.

Those skilled in the art can also realize that, for the convenience and brevity of description, for the specific working process of the above-described systems, devices and units, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other manners. For example, the division of units, modules or components in the apparatus embodiments described above is only a logical function division, and other division methods may be used in actual implementation. For example, multiple units, modules or components may be combined or integrated. To another system, or some units or modules or components can be ignored, or not implemented. For another example, the above-mentioned units/modules/components described as separate/display components may or may not be physically separated, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units/modules/components may be selected according to actual needs to achieve the purpose of the embodiments of the present application. Finally, it should be noted that the mutual coupling or direct coupling or communication connection shown or discussed above may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms .

The above contents are only specific implementations of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Changes or substitutions should all be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

A wireless communication method, wherein the method is applied to a first device, and the method includes:

determining a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of a preset rule, the first control information, the first physical channel, and the first signal;

Wherein, at least one item of the first control information, the first physical channel, and the first signal is associated with the second physical channel and/or the second signal.
The method according to claim 1, wherein the second physical channel and/or the second signal is determined according to at least one of a preset rule, the first control information, the first physical channel, and the first signal A quasi-co-located QCL reference, including:

The QCL reference of the second physical channel and/or the second signal is determined according to a preset rule.
The method according to claim 2, wherein the determining the quasi-co-located QCL reference of the second physical channel and/or the second signal according to a preset rule comprises:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the control resource set CORESET in the time domain unit closest to the second physical channel and/or the second signal; or

In the absence of the first control information, the first physical channel or the first signal, according to the CORESET correspondence in the time domain unit closest to the second physical channel and/or the second signal the QCL reference to determine the QCL reference of the second physical channel and/or the second signal; or

In the absence of the first control information, the first physical channel or the first signal, determining the QCL reference of the second physical channel and/or the second signal according to a QCL reference configured by a higher layer; or

In the case where there is no first control information, the first physical channel or the first signal, and no QCL information is configured by a higher layer, according to the distance to the second physical channel and/or the second signal The QCL reference corresponding to the CORESET in the time domain unit of the second physical channel determines the QCL reference of the second physical channel and/or the second signal.
The method according to claim 3, characterized in that the determining of the second physical channel is based on a QCL reference corresponding to a control resource set CORESET in a time domain unit closest to the second physical channel and/or the second signal. Two physical channels and/or QCL references of the second signal, including:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal; or

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal; or

The QCL reference of the second physical channel and/or the second signal is determined according to the QCL reference corresponding to the last CORESET in the time domain unit closest to the second physical channel and/or the second signal.
The method according to claim 3 or 4, wherein the time domain unit comprises one of the following:

One or more slots, groups of slots, one or more symbols, groups of symbols, one or more subframes, groups of subframes, fields.
The method according to any one of claims 1 to 5, wherein the second physical channel is determined according to at least one of a preset rule, first control information, first physical channel, and first signal and/or the QCL reference for the second signal, including:

In the case of receiving the first control information, the QCL reference of the second physical channel and/or the second signal is determined according to the first control information and/or a preset rule.
The method according to claim 6, wherein the determining the QCL reference of the second physical channel and/or the second signal according to the first control information and/or a preset rule comprises:

In a case that the time domain offset value between the reception of the first control information and the reception of the second physical channel and/or the second signal is greater than or equal to a preset threshold, determine the first control information according to the QCL reference of the second physical channel and/or the second signal; or,

In the case that the time domain offset value between receiving the first control information and receiving the second physical channel and/or the second signal is smaller than a preset threshold, determine the second physical channel and/or the second physical channel according to a preset rule /or the QCL reference of the second signal.
The method according to claim 6 or 7, wherein the first control information includes transmission configuration indication TCI information, and the TCI information is used to indicate the second physical channel and/or the second signal The QCL reference.
The method according to any one of claims 1 to 5, wherein the second physical channel is determined according to at least one of a preset rule, first control information, first physical channel, and first signal and/or the QCL reference for the second signal, including:

When the first physical channel has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first physical channel the QCL reference of the second signal.
The method according to claim 9, wherein the first physical channel has an associated relationship with the second physical channel and/or the second signal, comprising at least one of the following:

the first physical channel is continuous with the second physical channel and/or the second signal in the time domain;

the first physical channel is located in the same time domain unit as the second physical channel and/or the second signal; or

The first time domain resource corresponding to the first physical channel and the second time domain resource corresponding to the second physical channel and/or the second signal partially or completely overlap in the time domain.
The method according to claim 9 or 10, wherein the first physical channel is scheduled by the first control information, wherein the first control information includes transmission configuration indication TCI information, or the The first control information does not include transmission configuration indication TCI information.
The method according to any one of claims 1 to 5, wherein the second physical channel is determined according to at least one of a preset rule, first control information, first physical channel, and first signal and/or the QCL reference for the second signal, including:

In the case where the first signal has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first signal Two-signal QCL reference.
The method according to claim 12, wherein the first signal having an associated relationship with the second physical channel and/or the second signal comprises at least one of the following:

the first signal is continuous in the time domain with the second physical channel and/or the second signal;

the first signal is located in the same time domain unit as the second physical channel and/or the second signal; or

The first signal and the corresponding third time domain resource and the second physical channel and/or the fourth time domain resource corresponding to the second signal partially or completely overlap in the time domain.
The method according to claim 12 or 13, wherein the first signal is scheduled by the first control information, wherein the first control information includes transmission configuration indication TCI information, or the The first control information does not include transmission configuration indication TCI information.
The method according to any one of claims 1 to 14, wherein the method further comprises:

Acquire pre-configuration information of the second physical channel and/or the second signal.
The method according to any one of claims 1 to 15, wherein the second physical channel comprises a periodic physical channel, and/or the second signal comprises a periodic reference signal.
The method according to any one of claims 1 to 16, wherein the second physical channel and/or the second signal comprises at least one of the following:

Periodic channel state information reference signal CSI-RS, tracking reference signal TRS, semi-persistent scheduling physical downlink shared channel SPS PDSCH, control resource set CORESET or physical downlink control channel PDCCH transmitted in CORESET.
The method according to claim 17, wherein the first control information comprises downlink control information DCI, and/or the first physical channel comprises a scheduled physical downlink shared channel PDSCH, and/or the The first signal includes scheduled CSI-RS.
The method according to any one of claims 1 to 16, wherein the second physical channel and/or the second signal comprises at least one of the following:

Periodic channel state information reference signal CSI-RS in sidelink, tracking reference signal TRS in sidelink, semi-persistent scheduling physical sideline shared channel SPS PSSCH, control resource set CORESET or physical side transmitted in CORESET row control channel PSCCH.
The method according to claim 19, wherein the first control information comprises sideline control information SCI, and/or the first physical channel comprises a scheduled physical sideline shared channel PSSCH, and/or, The first signal includes the channel state information reference signal CSI-RS in the scheduled sidelink.
A wireless communication method, wherein the method is applied to a second device, and the method includes:

determining a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of a preset rule, the first control information, the first physical channel, and the first signal;

Wherein, at least one item of the first control information, the first physical channel, and the first signal is associated with the second physical channel and/or the second signal.
The method according to claim 21, wherein the second physical channel and/or the second signal is determined according to at least one of a preset rule, the first control information, the first physical channel, and the first signal A quasi-co-located QCL reference, including:

The QCL reference of the second physical channel and/or the second signal is determined according to a preset rule.
The method according to claim 22, wherein the determining a quasi-co-located QCL reference of the second physical channel and/or the second signal according to a preset rule comprises:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the control resource set CORESET in the time domain unit closest to the second physical channel and/or the second signal; or

In the absence of the first control information, the first physical channel or the first signal, according to the CORESET correspondence in the time domain unit closest to the second physical channel and/or the second signal the QCL reference to determine the QCL reference of the second physical channel and/or the second signal; or

In the absence of the first control information, the first physical channel or the first signal, determining the QCL reference of the second physical channel and/or the second signal according to a QCL reference configured by a higher layer; or

In the case where there is no first control information, the first physical channel or the first signal, and no QCL information is configured by a higher layer, according to the distance to the second physical channel and/or the second signal The QCL reference corresponding to the CORESET in the time domain unit of the second physical channel determines the QCL reference of the second physical channel and/or the second signal.
The method according to claim 23, wherein the determining of the first time is based on a QCL reference corresponding to a control resource set CORESET in a time domain unit closest to the second physical channel and/or the second signal. Two physical channels and/or QCL references of the second signal, including:

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the CORESET with the smallest CORESET identifier in the time domain unit closest to the second physical channel and/or the second signal; or

Determine the QCL reference of the second physical channel and/or the second signal according to the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and/or the second signal; or

The QCL reference of the second physical channel and/or the second signal is determined according to the QCL reference corresponding to the last CORESET in the time domain unit closest to the second physical channel and/or the second signal.
The method according to claim 23 or 24, wherein the time domain unit comprises one of the following:

One or more slots, groups of slots, one or more symbols, groups of symbols, one or more subframes, groups of subframes, fields.
The method according to any one of claims 21 to 25, wherein the second physical channel is determined according to at least one of a preset rule, the first control information, the first physical channel, and the first signal and/or the QCL reference for the second signal, including:

In the case of sending the first control information, the QCL reference of the second physical channel and/or the second signal is determined according to the first control information and/or a preset rule.
The method according to claim 26, wherein the determining the QCL reference of the second physical channel and/or the second signal according to the first control information and/or a preset rule comprises:

In the case that the time domain offset value between sending the first control information and sending the second physical channel and/or the second signal is greater than or equal to a preset threshold, determine the first control information according to the QCL reference of the second physical channel and/or said second signal; or,

In the case that the time domain offset value between sending the first control information and sending the second physical channel and/or the second signal is smaller than a preset threshold, determine the second physical channel and/or the second physical channel according to a preset rule /or the QCL reference of the second signal.
The method according to claim 26 or 27, wherein the first control information includes transmission configuration indication TCI information, and the TCI information is used to indicate the second physical channel and/or the second signal The QCL reference.
The method according to any one of claims 21 to 25, wherein the second physical channel is determined according to at least one of a preset rule, the first control information, the first physical channel, and the first signal and/or the QCL reference for the second signal, including:

When the first physical channel has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first physical channel the QCL reference of the second signal.
The method according to claim 29, wherein the first physical channel has an associated relationship with the second physical channel and/or the second signal, comprising at least one of the following:

the first physical channel is continuous with the second physical channel and/or the second signal in the time domain;

the first physical channel is located in the same time domain unit as the second physical channel and/or the second signal; or

The first time domain resource corresponding to the first physical channel and the second time domain resource corresponding to the second physical channel and/or the second signal partially or completely overlap in the time domain.
The method according to claim 29 or 30, wherein the first physical channel is scheduled by the first control information, wherein the first control information includes transmission configuration indication TCI information, or the The first control information does not include transmission configuration indication TCI information.
The method according to any one of claims 21 to 25, wherein the second physical channel is determined according to at least one of a preset rule, the first control information, the first physical channel, and the first signal and/or the QCL reference for the second signal, including:

In the case where the first signal has an associated relationship with the second physical channel and/or the second signal, determining the second physical channel and/or the second physical channel according to the QCL reference of the first signal Two-signal QCL reference.
The method according to claim 32, wherein the first signal having an associated relationship with the second physical channel and/or the second signal comprises at least one of the following:

the first signal is continuous in the time domain with the second physical channel and/or the second signal;

the first signal is located in the same time domain unit as the second physical channel and/or the second signal; or

The first signal and the corresponding third time domain resource and the second physical channel and/or the fourth time domain resource corresponding to the second signal partially or completely overlap in the time domain.
The method according to claim 32 or 33, wherein the first signal is scheduled by the first control information, wherein the first control information includes transmission configuration indication TCI information, or the The first control information does not include transmission configuration indication TCI information.
The method according to any one of claims 21 to 34, wherein the method further comprises:

Pre-configuration information of the second physical channel and/or the second signal is sent.
The method according to any one of claims 21 to 35, wherein the second physical channel comprises a periodic physical channel, and/or the second signal comprises a periodic reference signal.
The method according to any one of claims 21 to 36, wherein the second physical channel and/or the second signal comprises at least one of the following:

Periodic channel state information reference signal CSI-RS, tracking reference signal TRS, semi-persistent scheduling physical downlink shared channel SPS PDSCH, control resource set CORESET or physical downlink control channel PDCCH transmitted in CORESET.
The method according to claim 37, wherein the first control information comprises downlink control information DCI, and/or the first physical channel comprises a scheduled physical downlink shared channel PDSCH, and/or the The first signal includes scheduled CSI-RS.
The method according to any one of claims 21 to 36, wherein the second physical channel and/or the second signal comprises at least one of the following:

Periodic channel state information reference signal CSI-RS in sidelink, tracking reference signal TRS in sidelink, semi-persistent scheduling physical sideline shared channel SPS PSSCH, control resource set CORESET or physical side transmitted in CORESET row control channel PSCCH.
The method according to claim 39, wherein the first control information comprises sideline control information SCI, and/or the first physical channel comprises a scheduled physical sideline shared channel PSSCH, and/or, The first signal includes the channel state information reference signal CSI-RS in the scheduled sidelink.
A first device, characterized in that it includes:

a processing unit, configured to determine a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of the preset rule, the first control information, the first physical channel, and the first signal;

Wherein, at least one item of the first control information, the first physical channel, and the first signal is associated with the second physical channel and/or the second signal.
A second device, comprising:

a processing unit, configured to determine a quasi-co-located QCL reference of the second physical channel and/or the second signal according to at least one of the preset rule, the first control information, the first physical channel, and the first signal;

Wherein, at least one item of the first control information, the first physical channel, and the first signal is associated with the second physical channel and/or the second signal.
A first device, characterized in that it includes:

A processor, a memory and a transceiver, the memory is used to store a computer program, the processor is used to invoke and run the computer program stored in the memory to control the transceiver to perform any one of claims 1 to 20 the method described.
A second device, comprising:

A processor, a memory and a transceiver, the memory for storing a computer program, the processor for calling and running the computer program stored in the memory to control the transceiver to perform any one of claims 21 to 40 the method described.
A chip, characterized in that it includes:

A processor for invoking and running a computer program from a memory, so that a device equipped with the chip executes the method as claimed in any one of claims 1 to 20 or as described in any one of claims 21 to 40 Methods.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 20 or any one of claims 21 to 40 the method described.
A computer program product, characterized by comprising computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 20 or the method as claimed in any one of claims 21 to 40 Methods.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 20 or the method according to any one of claims 21 to 40 .