Wireless communication method, first device and second device

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 includes: 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, wherein the at least one of the first control information, the first physical channel and the first signal has an association relationship with the second physical channel and / or the second signal. The scheme provided by the present application can support dynamic determination of the QCL reference of the second physical channel and / or the second signal, and can increase the correct transmission probability of the second physical channel and / or the second signal in the scenario of LBT failure.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to wireless communication methods, terminal devices, and network devices. Background Technology

[0002] In high-frequency systems, when using Listen Before Talk (LBT), it is typically required that the beamforming used for channel detection covers the beamforming corresponding to signal transmission. In other words, the terminal device can detect the channel from multiple directions. If channel detection using LBT based on a first direction successfully obtains the first channel occupancy time, then signal transmission needs to be performed using the beam direction corresponding to the first direction during that first channel occupancy time. In this case, for a pre-configured periodic reference signal located within that first channel occupancy time, to maximize its transmission opportunities, it needs to be transmitted using the beam direction corresponding to the first direction. However, in related technologies, the quasi-co-located (QCL) information of the periodic reference signal is configured by Radio Resource Control (RRC). Therefore, how to enhance the determination method of the QCL information of the periodic reference signal to increase the correct transmission probability of the periodic reference signal in scenarios where LBT may fail is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] This application provides a wireless communication method, a first device, and a second device that can support dynamically determining the QCL reference of the second physical channel and / or the second signal. In the case of LBT failure, it can increase the probability of correct transmission of the second physical channel and / or the second signal.

[0004] In a first aspect, this application provides a wireless communication method, the method being applied to a first device, the method comprising:

[0005] Based on at least one of the preset rules, first control information, first physical channel, and first signal, determine the quasi-co-address QCL reference for the second physical channel and / or the second signal;

[0006] Wherein, 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.

[0007] Secondly, this application provides a wireless communication method, which is applied to a second device, the method comprising:

[0008] Based on at least one of the preset rules, first control information, first physical channel, and first signal, determine the quasi-co-address QCL reference for the second physical channel and / or the second signal;

[0009] Wherein, 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.

[0010] Thirdly, a first device is provided for executing the methods described in the first aspect or their implementations. Specifically, the terminal device includes functional modules for executing the methods described in the first aspect or their implementations.

[0011] Fourthly, a second device is provided for performing the methods described in the second aspect or its implementations. Specifically, the network device includes functional modules for performing the methods described in the second aspect or its implementations.

[0012] Fifthly, a first device is provided, comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods described in the first aspect or its implementations.

[0013] In a sixth aspect, a second device is provided, comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods of the second aspect or its implementations described above.

[0014] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations. Specifically, the chip includes a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the methods of any one of the first to second aspects or their respective implementations.

[0015] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0016] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0017] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0018] Based on the above technical solution, 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 rules, the first control information, the first physical channel, and the first signal. This can support the dynamic determination of the QCL reference of the second physical channel and / or the second signal, and can at least increase the correct transmission probability of the second physical channel and / or the second signal in the scenario of shared spectrum. Attached Figure Description

[0019] Figure 1 This is an example of a communication system provided in the embodiments of this application.

[0020] Figure 2 This is a schematic flowchart of the wireless communication method provided in the embodiments of this application.

[0021] Figures 3 to 9 This is a schematic diagram showing the positional relationship between at least one of the first control information, the first physical channel, and the first signal provided in the embodiments of this application, and the second physical channel and / or the second signal.

[0022] Figure 10 This is a schematic block diagram of the first device provided in the embodiments of this application.

[0023] Figure 11 This is a schematic block diagram of the second device provided in the embodiments of this application.

[0024] Figure 12 This is a schematic block diagram of a communication device provided in an embodiment of this application.

[0025] Figure 13 This is a schematic block diagram of the chip provided in the embodiments of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] Figure 1 This is an example of a communication system according to an embodiment of this application.

[0028] like Figure 1As shown, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0029] It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal 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 systems, etc.

[0030] exist Figure 1 In the communication system 100 shown, network device 120 may be an access network device that communicates with terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with terminal device 110 (e.g., UE) located within that coverage area.

[0031] Network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, a Next Generation Radio Access Network (NG RAN) device, a base station (gNB) in an NR system, a radio controller in a Cloud Radio Access Network (CRAN), or a relay station, access point, vehicle-mounted device, wearable device, hub, switch, bridge, router, or network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0032] Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

[0033] For example, the terminal device 110 may refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal may be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, IoT device, satellite handheld terminal, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network, or terminal device in a future evolved network, etc.

[0034] Terminal device 110 can be used for device-to-device (D2D) communication.

[0035] The wireless communication system 100 may further include a core network device 130 that communicates with the base station. This core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device for an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions of both SMF and PGW-C. During network evolution, the aforementioned core network device may also be called by other names, or new network entities may be formed by dividing the core network functions; this embodiment does not limit this.

[0036] The various functional units in the communication system 100 can also establish connections and communicate with each other through the next generation (NG) interface.

[0037] For example, terminal devices establish air interface connections with access network devices through the NR interface for transmitting user plane data and control plane signaling; terminal devices can establish control plane signaling connections with the AMF through NG interface 1 (N1); access network devices, such as next-generation radio access base stations (gNB), can establish user plane data connections with the UPF through NG interface 3 (N3); access network devices can establish control plane signaling connections with the AMF through NG interface 2 (N2); the UPF can establish control plane signaling connections with the SMF through NG interface 4 (N4); the UPF can interact with the data network for user plane data through NG interface 6 (N6); the AMF can establish control plane signaling connections with the SMF through NG interface 11 (N11); and the SMF can establish control plane signaling connections with the PCF through NG interface 7 (N7).

[0038] Figure 1 An exemplary embodiment shows a base station, a core network device, and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices, and each base station may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0039] It should be understood that any device with communication functionality in the network / system described in this application embodiment can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 120 and a terminal device 110 with communication functions. The network device 120 and the terminal device 110 may be the devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0040] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0041] It should also be understood that the term "instruction" used in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of an association. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, and B can be obtained through C; it can also mean that there is an association between A and B. The term "correspondence" mentioned in the embodiments of this application can mean that there is a direct or indirect correspondence between two things, or an association between two things, or an instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rule" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other methods that can be used to instruct relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit its specific implementation method. For example, predefined can refer to what is defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

[0042] To facilitate understanding of the solution provided in this application, the relevant content of high frequency is explained below.

[0043] The research on NR systems mainly considers two frequency bands: frequency range 1 (FR1) and frequency range 2 (FR2). The frequency ranges included in FR1 and FR2 are illustrated in Table 1 below.

[0044] Table 1

[0045] Frequency band definition Corresponding frequency band range FR1 410MHz~7.125GHz FR2 24.25GHz~52.6GHz

[0046] As shown in Table 1, the frequency range of FR1 can be 410MHz to 7.125GHz, and the frequency range of FR2 can be 24.25GHz to 52.6GHz.

[0047] As NR systems evolve, new frequency bands, i.e., high-frequency technologies, are being researched. The frequency domain ranges included in these new bands are shown in Table 2. For ease of description, they are referred to as FRX in this application. It should be understood that this band name should not constitute any limitation. For example, FRX could be FR3.

[0048] Table 2

[0049] Frequency band definition Corresponding frequency band range FRX 52.6GHz~71GHz

[0050] As shown in Table 2, the frequency range of FRX can be 52.6 GHz to 71 GHz.

[0051] The FRX band includes both licensed and unlicensed spectrum. In other words, the FRX band includes both dedicated and shared spectrum.

[0052] Unlicensed spectrum is spectrum allocated by a country or region for use in wireless communication. This spectrum is usually considered a shared spectrum, meaning that communication equipment in different communication systems can use the spectrum as long as it meets the regulatory requirements set by the country or region on that spectrum, without needing to apply for a proprietary spectrum license from the government.

[0053] To ensure the amicable coexistence of various communication systems using unlicensed spectrum, some countries and regions have stipulated regulatory requirements for the use of unlicensed spectrum. For example, communication devices must adhere to the "listen-before-speak" (LBT) principle: before transmitting signals on an unlicensed spectrum channel, the device must first perform channel listening. Transmission is only permitted if the channel is idle; otherwise, transmission is prohibited. Furthermore, to ensure fairness, the duration of signal transmission on an unlicensed spectrum channel during a single transmission cannot exceed a certain time limit. Finally, to prevent excessively high signal power from affecting other important signals on the same channel, communication devices using unlicensed spectrum channels must adhere to limits on maximum power spectral density.

[0054] The subcarrier spacing considered for the FRX band can be larger than that for FR2. Current candidate subcarrier spacings include at least one of the following: 240kHz, 480kHz, and 960kHz. As an example, the corresponding parameter sets (Numerology) for these candidate subcarrier spacings are shown in Table 3 below.

[0055] Table 3

[0056] Subcarrier spacing Symbol length NCP length Symbol with NCP length Time slot length 240kHz 4.16μs 0.292μs 4.452μs 62.5μs 480kHz 2.08μs 0.146μs 2.226μs 31.25μs 960kHz 1.04μs 0.073μs 1.113μs 15.625μs

[0057] As shown in Table 3, each subcarrier interval can correspond to the parameter symbol length, NCP length, symbol band NCP length, and time slot length.

[0058] To facilitate understanding of the solution provided in this application, the QCL relationship in the NR system is explained below.

[0059] Quasi-co-location (QCL) refers to a method in which the large-scale parameters of the channel experienced by a symbol at one antenna port can be inferred from the channel experienced by a symbol at another antenna port. These large-scale parameters can include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters.

[0060] In NR systems, considering the possible QCL relationships between various reference signals, the aforementioned large-scale channel parameters can be categorized into different QCL types, facilitating system configuration based on the different scenarios in which the terminal devices operate. The definitions of different QCL type configurations are as follows:

[0061] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0062] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0063] 'QCL-TypeC': {Doppler shift, average delay};

[0064] 'QCL-TypeD':{Spatial Rx parameter}.

[0065] Before RRC signaling configuration (e.g., during the initial access phase), the terminal device has a system default QCL relationship from SSB to DMRS. The terminal device can use this SSB-DMRS QCL relationship to obtain the channel's Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters from the SSB signal to adjust the filtering parameters of the DMRS channel estimator, thereby enabling PDCCH and PDSCH reception. The spatial reception parameters are only used in frequency bands above 6 GHz. The aforementioned SSB-DMRS QCL relationship can be expressed as:

[0066] SSB→DMRS includes Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters. Among them, spatial reception parameters are only used for frequency bands above 6 GHz.

[0067] For frequency bands below 6 GHz, after RRC signaling configuration (e.g., RRC connected state phase), the QCL relationship between reference signals includes at least one of the following:

[0068] SSB→TRS, including Doppler frequency shift and average delay; or, corresponding to 'QCL-TypeC'.

[0069] TRS → CSI-RS used for CSI acquisition, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

[0070] TRS→DMRS, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

[0071] TRS → CSI-RS used for CSI acquisition, including Doppler frequency shift and Doppler spread; or, corresponding to 'QCL-TypeB'.

[0072] CSI-RS→DMRS, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

[0073] For frequency bands above 6 GHz, after RRC signaling configuration (e.g., RRC connected state phase), the QCL relationship between reference signals includes at least one of the following:

[0074] SSB→TRS, including Doppler frequency shift, average time delay, and spatial reception parameters; or, corresponding to 'QCL-TypeC'+'QCL-TypeD'.

[0075] TRS → CSI-RS for BM, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD'.

[0076] TRS → CSI-RS for CSI, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA'.

[0077] TRS → DMRS for PDCCH, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD'.

[0078] TRS → DMRS for PDSCH, including Doppler frequency shift, Doppler spread, average delay, and delay spread; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD'.

[0079] SSB → CSI-RS for BM, including Doppler frequency shift, average delay, and spatial reception parameters; or, corresponding to 'QCL-TypeC' + 'QCL-TypeD'.

[0080] SSB → CSI-RS for CSI, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

[0081] SSB → DMRS for PDCCH (before TRS configuration), including Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD'.

[0082] SSB → DMRS for PDSCH (before TRS configuration), including Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD'.

[0083] CSI-RS for BM → DMRS for PDCCH, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

[0084] CSI-RS for BM → DMRS for PDSCH, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

[0085] CSI-RS for CSI → DMRS for PDSCH, including Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters; or, corresponding to 'QCL-TypeA' + 'QCL-TypeD'. Note that QCL parameters cannot be directly obtained from the CSI-RS for CSI.

[0086] CSI-RS for BM → CSI-RS for TRS / BM / CSI, including spatial reception parameters; or, corresponding to 'QCL-TypeD'.

[0087] For different types of reference signals, the acquisition of QCL reference includes the following cases:

[0088] Scenario 1:

[0089] Configured via RRC, such as periodic CSI-RS or TRS;

[0090] Scenario 2:

[0091] Activated via RRC configuration by MAC CE (referred to as MAC-CE-based indication), for example, by activating or deactivating periodic CSI-RS or TRS, or DMRS of PDCCH via MAC CE indication;

[0092] Scenario 3:

[0093] Configured via RRC, activated by MAC CE, and indicated using DCI (referred to as DCI-based indication), such as aperiodic CSI-RS or TRS, or DMRS of PDSCH.

[0094] It should be noted that the QCL reference of the DMRS of PDSCH may also be activated by MAC CE through RRC configuration.

[0095] The RRC configuration includes QCL information, which is used to determine the QCL reference of the target reference signal.

[0096] The MAC-CE-based indication includes: a set of Transmission Configuration Indicator (TCI) states configured by RRC, with each TCI state corresponding to a QCL reference. A TCI state is selected from this set of TCI states via MAC-CE, and its corresponding QCL reference is used as the QCL reference for the target reference signal.

[0097] The DCI-based indication includes: configuring M TCI states by RRC, each TCI state corresponding to a QCL reference. A maximum of 8 TCI states are selected from these M TCI states via MAC CE and matched with 3 bits of TCI indication information in the DCI. If M is less than or equal to 8, then the M TCI states correspond to the TCI indication information in the DCI. Finally, one TCI state is selected from the TCI states corresponding to the TCI indication information in the DCI via the DCI, and its corresponding QCL reference is used as the QCL reference for the target reference signal.

[0098] The TCI state includes a QCL reference. Each TCI state can include up to two downlink reference signals, serving as up to two different types of reference sources. Specifically, the TCI state ID is used to identify a TCI state.

[0099] For example, each TCI state may include QCL information 1 and QCL information 2.

[0100] Each QCL information contains the following: QCL type configuration, which can be one of QCL type A, QCL type B, QCL type C, or QCL type D; and QCL reference signal configuration, including the cell ID of the reference signal, BWPID, and the identifier of the reference signal (which can be CSI-RS resource ID or SSB index). At least one of the QCL information in QCL information 1 and QCL information 2 must have a QCL type of one of type A, type B, or type C, and the other QCL information (if configured) must have a QCL type of QCL type D.

[0101] As an example, the available QCL references for the reference signal can include one of the cases shown in Table 4:

[0102] Table 4

[0103] QCL reference signal configuration 1 QCL type configuration 1 QCL reference signal configuration 2 QCL type configuration 2 TRS QCL type A TRS QCL type D TRS QCL type A CSI-RS for BM QCL type D CSI-RS for CSI QCL type A CSI-RS for CSI QCL type D SSB QCL type A SSB QCL type D

[0104] 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 of TRS, CSI-RS for CSI, and SSB, and QCL reference signal configuration 2 can be any of TRS, CSI-RS for BM, CSI-RS for CSI, and SSB.

[0105] Unlicensed spectrum is spectrum allocated by a country or region for use in wireless communication. This spectrum is usually considered a shared spectrum, meaning that communication equipment in different communication systems can use the spectrum as long as it meets the regulatory requirements set by the country or region on that spectrum, without needing to apply for a proprietary spectrum license from the government.

[0106] To ensure the amicable coexistence of various communication systems using unlicensed spectrum, some countries and regions have stipulated regulatory requirements for the use of unlicensed spectrum. For example, communication devices must adhere to the "listen-before-speak" (LBT) principle: before transmitting signals on an unlicensed spectrum channel, the device must first perform channel listening. Only if the channel listening result indicates the channel is idle can the device transmit signals; if the channel listening result indicates the channel is busy, the device cannot transmit signals. To ensure fairness, the duration of signal transmission using an unlicensed spectrum channel in a single transmission cannot exceed the Maximum Channel Occupancy Time (MCOT).

[0107] In high-frequency bands, both licensed and unlicensed spectrum are included. On the unlicensed spectrum within high-frequency bands, for countries and regions with LBT (Low-to-Band) requirements, LBT methods (i.e., channel access methods) can include omnidirectional LBT, directional LBT, receiver-assisted LBT, and no LBT. Among these, channel access methods without LBT may be subject to certain limitations, such as Automatic Transmit Power Control (ATPC), Distributed Power Detection (DFS), Long-Term Interference Detection (LTD), or other interference cancellation mechanisms. Furthermore, switching between LBT-enabled and LBT-free channel access is possible.

[0108] For countries and regions without LBT requirements, it is also necessary to consider whether to introduce certain conditions, such as whether to apply DFS, ATPC, long-term interference detection, limit a certain duty cycle, limit a certain transmit power, limit MCOT, etc.

[0109] In high-frequency systems, when using Listen Before Talk (LBT), it is typically required that the beamforming used for channel detection covers the beamforming corresponding to signal transmission. In other words, the terminal device can detect the channel from multiple directions. If channel detection using LBT based on a first direction successfully obtains the first channel occupancy time, then signal transmission needs to be performed using the beam direction corresponding to the first direction during that first channel occupancy time. In this case, for a pre-configured periodic reference signal located within that first channel occupancy time, to maximize its transmission opportunities, it needs to be transmitted using the beam direction corresponding to the first direction. However, in related technologies, the quasi-co-located (QCL) information of the periodic reference signal is configured by Radio Resource Control (RRC). Therefore, how to enhance the determination method of the QCL information of the periodic reference signal to increase the correct transmission probability of the periodic reference signal in scenarios where LBT may fail is a pressing technical problem that needs to be solved.

[0110] Figure 2 A schematic flowchart of a wireless communication method 200 according to an embodiment of this application is shown. The method 200 can be executed by a first device or a second device, wherein the first device can be, for example, […]. Figure 1 The terminal device shown or the terminal device on the side link, the second device can be as follows: Figure 1 The network device or terminal device on the side link shown. In other words, method 200 can be used for uplink and downlink, or for side link. The following description uses the example of method 200 being executed by the first device to illustrate method 200.

[0111] like Figure 2 As shown, the method 200 may include some or all of the following:

[0112] S210, determine the quasi-co-located QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, the first control information, the first physical channel, and the first signal;

[0113] Wherein, 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.

[0114] In this embodiment, the first device determines the quasi-co-address QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, the first control information, the first physical channel, and the first signal. This can support the dynamic determination of the QCL reference of the second physical channel and / or the second signal, and can increase the probability of correct transmission of the second physical channel and / or the second signal in the scenario of LBT failure.

[0115] 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. This can be understood as: one, two, or all of the first control information, the first physical channel, and the first signal are associated with the second physical channel and / or the second signal. For example, the first control information is associated with the second physical channel and / or the second signal; or the first physical channel and / or the first signal is associated with the second physical channel and / or the second signal. This application does not specifically limit this aspect.

[0116] It should also be noted that this application aims to determine the quasi-co-address QCL reference of the second physical channel and / or the second signal based on at least one of the preset rules, the first control information, the first physical channel, and the first signal. In other words, receiving the first control information, the first physical channel, and the first signal is not a necessary condition. Or, even if the first control information, the first physical channel, and the first signal are not received, it is still necessary to determine the QCL reference of the second physical channel and / or the second signal.

[0117] 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 QCL reference information or QCL information.

[0118] 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 (e.g., QCL type-D and beam-dependent) is information needed when receiving the physical channel or signal. If the QCL reference is incorrect (e.g., beam inaccurate), 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.

[0119] In some embodiments, the first control information is not associated with the first physical channel and / or the first signal.

[0120] In some embodiments, the first control information is associated with the first physical channel and / or the first signal, such as the first DCI scheduling the first PDSCH.

[0121] In some embodiments, S210 may include:

[0122] The QCL reference for the second physical channel and / or the second signal is determined according to preset rules.

[0123] In some implementations, the QCL reference of the second physical channel and / or the second signal is determined based on 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, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the 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, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference configured by a higher layer; or, in the absence of the first control information, the first physical channel, or the first signal, and without QCL information configured by a higher layer, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time domain unit closest to the second physical channel and / or the second signal.

[0124] It should be noted that, in the embodiments of this application, the reception time of the first control information, the first physical channel, or the first signal may be before the reception time of the second physical channel and / or the second signal, or may be received simultaneously; this application does not specifically limit this. 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.

[0125] In some implementations, the nearest time domain unit may be the most recent time domain unit that includes CORESET.

[0126] 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 QCL reference for the second physical channel and / or the second signal.

[0127] In some implementations, the QCL reference of the second physical channel and / or the second signal is determined based on 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, the QCL reference of the second physical channel and / or the second signal is determined based on 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 based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0128] In some implementations, 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 is used as the QCL reference for the second physical channel and / or the second signal; 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 is used as the QCL reference for the second physical channel and / or the second signal; 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 is used as the QCL reference for the second physical channel and / or the second signal.

[0129] As an example, the second signal is periodic CSI-RS. The UE receives a PDSCH scheduled by the network device. The symbols occupied by this scheduled PDSCH and the symbols occupied by the periodic CSI-RS at least partially overlap in the time domain, or the symbols occupied by the scheduled PDSCH and the symbols occupied by the periodic CSI-RS are located in the same time slot. In this case, the periodic CSI-RS and the scheduled PDSCH have a QCL relationship, or the QCL reference of the periodic CSI-RS is the same as the QCL reference of the scheduled PDSCH. Alternatively, if the UE is not scheduled with a PDSCH in the time slot where the periodic CSI-RS is located, then the periodic CSI-RS is received according to a preset rule. For example, the second signal is periodic CSI-RS, and the QCL reference of the periodic CSI-RS is determined based on the QCL reference of CORESET.

[0130] In some implementations, the time-domain unit includes one of the following: one or more time slots, a time slot group, one or more symbols, a symbol group, one or more subframes, a subframe group, or a half-frame.

[0131] In some implementations, the time-domain unit is determined based on a first subcarrier spacing. Optionally, the first subcarrier spacing may be a reference subcarrier spacing, or the subcarrier spacing for activating the BWP, or the subcarrier spacing corresponding to the second physical channel and / or the second signal.

[0132] In some implementations, the first subcarrier interval is predefined.

[0133] In some implementations, the first subcarrier spacing is configured by the network device.

[0134] In some embodiments, S210 may include:

[0135] Upon 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 preset rules.

[0136] In some implementations, if the time-domain offset 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, the QCL reference of the second physical channel and / or the second signal is determined according to the first control information; or, if the time-domain offset between receiving the first control information and receiving the second physical channel and / or the second signal is less than a preset threshold, the QCL reference of the second physical channel and / or the second signal is determined according to a preset rule.

[0137] In some implementations, the first control information includes Transmission Configuration Indication (TCI) information, which is used to indicate the QCL reference of the second physical channel and / or the second signal.

[0138] In other words, the first device can determine the QCL reference of the second physical channel and / or the second signal based on the TCI information.

[0139] In some implementations, the preset threshold is determined by the terminal device based on its capabilities, and / or the preset threshold is configured by the network device based on the capabilities of the terminal device.

[0140] In some embodiments, S210 may include:

[0141] When the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel.

[0142] In some implementations, the second physical channel is a physical shared channel, and the first physical channel is CORESET.

[0143] In other words, when the CORESET is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the CORESET.

[0144] In some implementations, if the first physical channel exists and is associated with the second physical channel and / or the second signal, then the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel. Optionally, the existence of the first physical channel can be understood as receiving or about to receive the first physical channel. For example, if scheduling information for the first physical channel has been received, but reception of the first physical channel has not yet begun, it indicates that reception of the first physical channel is imminent.

[0145] In some implementations, when the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the first physical channel is used as the QCL reference of the second physical channel and / or the second signal.

[0146] In some implementations, the association between the first physical channel and the second physical channel and / or the second signal includes at least one of the following:

[0147] The first physical channel is continuous in the time domain with the second physical channel and / or the second signal;

[0148] The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; or

[0149] The first time-domain resources corresponding to the first physical channel and the second time-domain resources corresponding to the second physical channel and / or the second signal partially or completely overlap in the time domain.

[0150] 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 by indicating the subcarrier spacing (e.g., 120 kHz).

[0151] As an example, the second signal is the periodic CSI-RS. The UE receives the PDSCH scheduled by the network device, which includes the periodic CSI-RS. Then the periodic CSI-RS and the scheduled PDSCH have a QCL relationship.

[0152] It should be noted that the length of the identical time-domain unit and the length of the time-domain unit closest to the second physical channel and / or the second signal mentioned above may or may not be equal, and this application does not limit this. In other words, the time-domain unit closest to the second physical channel and / or the second signal is the first time-domain unit, and the identical time-domain unit is the second time-domain unit. The length of the first time-domain unit and the length of the second time-domain unit may or may not be equal, and this application does not limit this.

[0153] In some implementations, the first physical channel is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0154] In some embodiments, S210 may include:

[0155] When the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal.

[0156] In some implementations, if the first signal exists and the first signal is associated with the second physical channel and / or the second signal, then the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal. Optionally, the existence of the first signal can be understood as receiving or about to receive the first signal, such as when scheduling information for the first signal has been received but reception of the first signal has not yet begun, indicating that reception of the first signal is imminent.

[0157] In some implementations, when the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the first signal is used as the QCL reference of the second physical channel and / or the second signal.

[0158] In some implementations, the association between the first signal and the second physical channel and / or the second signal includes at least one of the following:

[0159] The first signal is continuous in the time domain with the second physical channel and / or the second signal;

[0160] The first signal and the second physical channel and / or the second signal are located in the same time domain; or

[0161] The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

[0162] 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 by indicating the subcarrier spacing (e.g., 120 kHz).

[0163] 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 by indicating the subcarrier spacing (e.g., 120 kHz).

[0164] It should be noted that the length of the identical time-domain unit and the length of the time-domain unit closest to the second physical channel and / or the second signal mentioned above may or may not be equal, and this application does not limit this. In other words, the time-domain unit closest to the second physical channel and / or the second signal is the first time-domain unit, and the identical time-domain unit is the second time-domain unit. The length of the first time-domain unit and the length of the second time-domain unit may or may not be equal, and this application does not limit this.

[0165] In some implementations, the first signal is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0166] In some embodiments, the method 200 may further include:

[0167] Obtain the pre-configuration information of the second physical channel and / or the second signal.

[0168] In other words, after the first device obtains the pre-configuration information of the second physical channel and / or the second signal, the first device determines the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, the first control information, the first physical channel, and the first signal.

[0169] In some embodiments, the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal.

[0170] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0171] Periodic Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Semi-Persistent Scheduling Physical Downlink Shared Channel (SPS PDSCH), and Physical Downlink Control Channel (PDCCH) transmitted in the Control Resource Set (CORESET) or CORESET.

[0172] In some implementations, the periodic CSI-RS may include a CSI-RS for CSI measurements and / or BM.

[0173] In some implementations, the first physical channel includes a scheduled physical channel; and / or, the first signal includes a scheduled reference signal.

[0174] 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 a scheduled CSI-RS.

[0175] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0176] The periodic channel state information reference signal (CSI-RS) in the side link, the tracking reference signal (TRS) in the side link, the semi-persistent scheduling physical side link shared channel (SPS PSSCH), and the physical side link control channel (PSCCH) transmitted in the control resource set (CORESET) or CORESET.

[0177] In some implementations, the periodic CSI-RS in the side link may include CSI-RS for CSI measurements and / or BM.

[0178] In some implementations, the first physical channel includes a physical channel in a scheduled side link; and / or, the first signal includes a reference signal in a scheduled side link.

[0179] In some implementations, the first control information includes sidelink control information (SCI), and / or the first physical channel includes a scheduled physical sidelink shared channel (PSSCH), and / or the first signal includes a channel state information reference signal (CSI-RS) in a scheduled sidelink.

[0180] The solution of this application will be described below with reference to specific embodiments.

[0181] Example 1:

[0182] In this embodiment, it is assumed that the first control information is a 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.

[0183] For a CORESET that schedules PDSCH, assuming the terminal device is configured with higher-layer parameters such as tci-PresentInDCI enabled, the PDCCH of the corresponding DCI format 1_1 transmitted using the CORESET includes a Transmission Configuration Indication (TCI) field. Alternatively, if tci-PresentInDCI is disabled or not configured, the PDCCH of the corresponding DCI format 1_1 transmitted using the CORESET does not include a TCI field.

[0184] If the terminal device receives a first downlink DCI, which does not include a TCI field, and the time-domain offset between receiving the first downlink DCI and receiving the second physical channel and / or the second signal is greater than or equal to a preset threshold (e.g., timeDurationForQCL), the terminal device assumes that the TCI reference of the second physical channel and / or the second signal is the same as the TCI reference of the CORESET that transmits the first downlink DCI.

[0185] If the terminal device receives a first downlink DCI, which includes a TCI field, and the time-domain offset between receiving the first downlink DCI and receiving the second physical channel and / or the second signal is greater than or equal to a preset threshold (e.g., timeDurationForQCL), the terminal device determines the QCL reference of the second physical channel and / or the second signal based on the TCI information indicated by the TCI field in the received first downlink DCI.

[0186] When the terminal device is configured with the second physical channel and / or the second signal includes multi-slot transmission, the indicated TCI state should be determined based on the set of TCI states activated on the first time slot among the multiple time slots, and the terminal device should assume that the set of TCI states activated on the multiple time slots is the same. Alternatively, if the set of TCI states activated by the MAC CE differs in the multiple time slots, the terminal device should determine the TCI state based on the set of activated TCI states on the first time slot and the TCI state indication information in the first downlink DCI.

[0187] When the terminal device is configured to include multi-timeslot transmission of the second physical channel and / or the second signal, the second physical channel and / or the second signal transmitted on the multi-timeslot have the same QCL reference.

[0188] If the terminal device receives a scheduled first downlink DCI, regardless of whether the first downlink DCI includes or excludes a TCI field, and the time-domain offset between receiving the first downlink DCI and receiving the second physical channel and / or the second signal is less than a preset threshold (e.g., timeDurationForQCL), the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal. For example, the QCL reference of the second physical channel and / or the second signal is determined based on 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, the QCL reference of the second physical channel and / or the second signal is determined based on 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 based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0189] Example 2:

[0190] 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 based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0191] Figures 3 to 8 This is a schematic diagram illustrating the determination of the QCL reference of the second physical channel and / or the second signal based on the QCL reference corresponding to CORESET, provided in an embodiment of this application.

[0192] like Figure 3 As shown, the terminal device can determine the QCL reference of the second physical channel and / or the second signal based on 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. Figure 3In this context, assuming the length of a time domain unit is one time slot, i.e., including 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, i.e., the CORESET with the smallest CORESET identifier is CORESET#1. At this time, the terminal device can determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and / or the second signal.

[0193] like Figure 4 As shown, the terminal device can determine the QCL reference of the second physical channel and / or the second signal based on 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. Figure 4 In this context, assuming the length of a time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots, and assuming the time domain unit closest to the second physical channel and / or the second signal is the first time slot group, 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. At this time, the terminal device can determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and / or the second signal.

[0194] like Figure 5 As shown, the terminal device can determine the QCL reference of the second physical channel and / or the second signal based on 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. Figure 5 In this context, assuming the length of a time-domain unit is a time slot group (or one or more time slots) determined according to the reference subcarrier spacing, for example, assuming the reference subcarrier spacing is 120kHz and the time slot group includes 2 time slots, the subcarrier spacing of the second physical channel and / or the second signal is 480kHz, 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, that is, the CORESET with the smallest CORESET identifier is CORESET#1. At this time, the terminal device can determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and / or the second signal.

[0195] like Figure 6 As shown, the terminal device can determine the QCL reference of the second physical channel and / or the second signal based on 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. Figure 6 In this context, assuming the length of a time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots, and the time domain unit closest to the second physical channel and / or the second signal 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, then the terminal device can determine the QCL reference of CORESET#2 as the QCL reference of the second physical channel and / or the second signal.

[0196] like Figure 7 As shown, assuming the first control information is associated with the second physical channel and / or the second signal. If the time-domain offset between receiving the first control information and receiving the second physical channel and / or the second signal is less than a preset threshold (e.g., timeDurationForQCL), the terminal device can determine the QCL reference of the second physical channel and / or the second signal based on 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 the first CORESET, or the last CORESET. Figure 7 In this example, assuming the length of a time domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots. The time domain unit closest to the second physical channel and / or the second signal is the second time slot group. 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. At this time, the terminal device can determine the QCL reference of CORESET#1 as the QCL reference of the second physical channel and / or the second signal.

[0197] like Figure 8 As shown, assume that the first control information is associated with the second physical channel and / or the second signal. If the time-domain offset 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 (e.g., timeDurationForQCL), the terminal device can determine the QCL reference of the second physical channel and / or the second signal based on the QCL reference corresponding to the CORESET that transmits the first control information. Figure 8In this context, assuming the length of a time-domain unit is one time slot group (or multiple time slots), for example, it includes 4 time slots, the first control information is transmitted through the resources in CORESET#2. At this time, the terminal device can determine the QCL reference of CORESET#2 as the QCL reference of the second physical channel and / or the second signal.

[0198] Example 3:

[0199] In this embodiment, if the first physical channel and / or the first signal are associated with the second physical channel and / or the second signal, then the terminal device uses the QCL reference of the first physical channel or signal as the QCL reference of the second physical channel and / or the second signal.

[0200] Figure 9 This is a schematic diagram illustrating the relationship between the first physical channel and / or the first signal and the second physical channel and / or the second signal provided in the embodiments of this application.

[0201] The first control information schedules the transmission of the first physical channel. 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 between receiving the first control information and receiving the first physical channel is greater than or equal to a preset threshold (e.g., timeDurationForQCL), the QCL reference of the first physical channel is determined according to the TCI indication information. Since the time-domain resources corresponding to the second physical channel and / or the second signal partially or completely overlap with the time-domain resources corresponding to the first physical channel in the time domain, the terminal device can determine the QCL reference of the second physical channel and / or the second signal according to the QCL reference of the first physical channel; or, in this case, the QCL reference of the second physical channel and / or the second signal is determined according to the TCI indication information.

[0202] like Figure 9As shown, the first DCI schedules the transmission of the first PDSCH. The TCI indication information in the first DCI is used to indicate the QCL reference of the first PDSCH. If the time-domain offset between receiving the first DCI and receiving the first PDSCH is greater than or equal to a preset threshold (e.g., timeDurationForQCL), the QCL reference of the first PDSCH is determined according to the TCI indication information. Since the time-domain resources corresponding to the second physical channel and / or the second signal overlap with the time-domain resources corresponding to the first PDSCH in the time domain, the terminal device can determine the QCL reference of the second physical channel and / or the second signal according to the QCL reference of the first PDSCH; or, in this case, the QCL reference of the second physical channel and / or the second signal is determined according to the TCI indication information.

[0203] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application.

[0204] It should also be understood that, in the various method embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. Furthermore, in the embodiments of this application, the terms "downlink" and "uplink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell, and "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction.

[0205] The method 200 has been described in detail above from the perspective of the first device. The following description will explain the method 200 from the perspective of the second device. It should be noted that the second device may be as follows: Figure 1 The network device shown can also be a terminal device on a side link, and this application embodiment does not specifically limit it.

[0206] like Figure 2As shown, the method 200 may include:

[0207] S210, determine the quasi-co-located QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, the first control information, the first physical channel, and the first signal;

[0208] Wherein, 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.

[0209] In some embodiments, S210 may include:

[0210] The QCL reference for the second physical channel and / or the second signal is determined according to preset rules.

[0211] In some embodiments, S210 may include:

[0212] The QCL reference of the second physical channel and / or the second signal is determined based on 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

[0213] In the absence of the first control information, the first physical channel, or the first signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal; or

[0214] In the absence of the first control information, the first physical channel, or the first signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference configured by the higher layer; or

[0215] In the absence of the first control information, the first physical channel, or the first signal, and without QCL information configured by a higher layer, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0216] In some embodiments, S210 may include:

[0217] The QCL reference of the second physical channel and / or the second signal is determined based on 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;

[0218] The QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and / or the second signal;

[0219] The QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0220] In some embodiments, the time-domain unit includes one of the following:

[0221] One or more time slots, time slot group, one or more symbols, symbol group, one or more subframes, subframe group, half frame.

[0222] In some embodiments, S210 may include:

[0223] When the first control information is sent, the QCL reference of the second physical channel and / or the second signal is determined according to the first control information and / or preset rules.

[0224] In some embodiments, S210 may include:

[0225] If the time-domain offset 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, the QCL reference for the second physical channel and / or the second signal is determined based on the first control information; or...

[0226] If the time-domain offset between sending the first control information and sending the second physical channel and / or the second signal is less than a preset threshold, the QCL reference of the second physical channel and / or the second signal is determined according to a preset rule.

[0227] In some embodiments, the first control information includes Transmission Configuration Indication (TCI) information, which is used to indicate the QCL reference of the second physical channel and / or the second signal.

[0228] In some embodiments, S210 may include:

[0229] When the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel.

[0230] In some embodiments, the association between the first physical channel and the second physical channel and / or the second signal includes at least one of the following:

[0231] The first physical channel is continuous in the time domain with the second physical channel and / or the second signal;

[0232] The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; or

[0233] The first time-domain resources corresponding to the first physical channel and the second time-domain resources corresponding to the second physical channel and / or the second signal partially or completely overlap in the time domain.

[0234] In some embodiments, the first physical channel is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0235] In some embodiments, S210 may include:

[0236] When the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal.

[0237] In some embodiments, the association between the first signal and the second physical channel and / or the second signal includes at least one of the following:

[0238] The first signal is continuous in the time domain with the second physical channel and / or the second signal;

[0239] The first signal and the second physical channel and / or the second signal are located in the same time domain; or

[0240] The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

[0241] In some embodiments, the first signal is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0242] In some embodiments, the method 200 may further include:

[0243] Send pre-configuration information for the second physical channel and / or the second signal.

[0244] In some embodiments, the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal.

[0245] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0246] Periodic Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Semi-Persistent Scheduling Physical Downlink Shared Channel (SPS PDSCH), and Physical Downlink Control Channel (PDCCH) transmitted in the Control Resource Set (CORESET) or CORESET.

[0247] 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 a scheduled CSI-RS.

[0248] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0249] The periodic channel state information reference signal (CSI-RS) in the side link, the tracking reference signal (TRS) in the side link, the semi-persistent scheduling physical side link shared channel (SPS PSSCH), and the physical side link control channel (PSCCH) transmitted in the control resource set (CORESET) or CORESET.

[0250] In some embodiments, the first control information includes sidelink control information (SCI), and / or the first physical channel includes a scheduled physical sidelink shared channel (PSSCH), and / or the first signal includes a scheduled channel state information reference signal (CSI-RS) in the sidelink.

[0251] It should be understood that the steps on the second device side in method 200 can refer to the corresponding steps on the first device side, and for the sake of brevity, they will not be repeated here.

[0252] The above text combined Figures 1 to 9 The method embodiments of this application are described in detail below, in conjunction with... Figures 10 to 13 The following describes in detail the device embodiments of this application.

[0253] Figure 10 This is a schematic block diagram of the first device 300 according to an embodiment of this application.

[0254] like Figure 10 As shown, the first device 300 may include:

[0255] Processing unit 310 is configured to determine a quasi-co-located QCL reference for a second physical channel and / or a second signal based on at least one of a preset rule, first control information, a first physical channel, and a first signal.

[0256] Wherein, 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.

[0257] In some embodiments, the processing unit 310 is specifically used for:

[0258] The QCL reference for the second physical channel and / or the second signal is determined according to preset rules.

[0259] In some embodiments, the processing unit 310 is specifically used for:

[0260] The QCL reference of the second physical channel and / or the second signal is determined based on 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

[0261] In the absence of the first control information, the first physical channel, or the first signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal; or

[0262] In the absence of the first control information, the first physical channel, or the first signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference configured by the higher layer; or

[0263] In the absence of the first control information, the first physical channel, or the first signal, and without QCL information configured by a higher layer, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0264] In some embodiments, the processing unit 310 is specifically used for:

[0265] The QCL reference of the second physical channel and / or the second signal is determined based on 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

[0266] The QCL reference of the second physical channel and / or the second signal is determined based on 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

[0267] The QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0268] In some embodiments, the time-domain unit includes one of the following:

[0269] One or more time slots, time slot group, one or more symbols, symbol group, one or more subframes, subframe group, half frame.

[0270] In some embodiments, the processing unit 310 is specifically used for:

[0271] Upon 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 preset rules.

[0272] In some embodiments, the processing unit 310 is specifically used for:

[0273] If the time-domain offset 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, the QCL reference for the second physical channel and / or the second signal is determined based on the first control information; or...

[0274] If the time-domain offset between receiving the first control information and receiving the second physical channel and / or the second signal is less than a preset threshold, the QCL reference of the second physical channel and / or the second signal is determined according to a preset rule.

[0275] In some embodiments, the first control information includes Transmission Configuration Indication (TCI) information, which is used to indicate the QCL reference of the second physical channel and / or the second signal.

[0276] In some embodiments, the processing unit 310 is specifically used for:

[0277] When the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel.

[0278] In some embodiments, the association between the first physical channel and the second physical channel and / or the second signal includes at least one of the following:

[0279] The first physical channel is continuous in the time domain with the second physical channel and / or the second signal;

[0280] The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; or

[0281] The first time-domain resources corresponding to the first physical channel and the second time-domain resources corresponding to the second physical channel and / or the second signal partially or completely overlap in the time domain.

[0282] In some embodiments, the first physical channel is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0283] In some embodiments, the processing unit 310 is specifically used for:

[0284] When the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal.

[0285] In some embodiments, the association between the first signal and the second physical channel and / or the second signal includes at least one of the following:

[0286] The first signal is continuous in the time domain with the second physical channel and / or the second signal;

[0287] The first signal and the second physical channel and / or the second signal are located in the same time domain; or

[0288] The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

[0289] In some embodiments, the first signal is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0290] In some embodiments, the first device 300 may further include:

[0291] A communication unit is used to acquire pre-configuration information of the second physical channel and / or the second signal.

[0292] In some embodiments, the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal.

[0293] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0294] Periodic Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Semi-Persistent Scheduling Physical Downlink Shared Channel (SPS PDSCH), and Physical Downlink Control Channel (PDCCH) transmitted in the Control Resource Set (CORESET) or CORESET.

[0295] 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 a scheduled CSI-RS.

[0296] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0297] The periodic channel state information reference signal (CSI-RS) in the side link, the tracking reference signal (TRS) in the side link, the semi-persistent scheduling physical side link shared channel (SPS PSSCH), and the physical side link control channel (PSCCH) transmitted in the control resource set (CORESET) or CORESET.

[0298] In some embodiments, the first control information includes sidelink control information (SCI), and / or the first physical channel includes a scheduled physical sidelink shared channel (PSSCH), and / or the first signal includes a scheduled channel state information reference signal (CSI-RS) in the sidelink.

[0299] Figure 11 This is a schematic block diagram of the second device 400 according to an embodiment of this application.

[0300] like Figure 11 As shown, the second device 400 may include:

[0301] Processing unit 410 is configured to determine a quasi-co-located QCL reference for a second physical channel and / or a second signal based on at least one of a preset rule, first control information, a first physical channel, and a first signal.

[0302] Wherein, 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.

[0303] In some embodiments, the processing unit 410 is specifically used for:

[0304] The QCL reference for the second physical channel and / or the second signal is determined according to preset rules.

[0305] In some embodiments, the processing unit 410 is specifically used for:

[0306] The QCL reference of the second physical channel and / or the second signal is determined based on 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

[0307] In the absence of the first control information, the first physical channel, or the first signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal; or

[0308] In the absence of the first control information, the first physical channel, or the first signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference configured by the higher layer; or

[0309] In the absence of the first control information, the first physical channel, or the first signal, and without QCL information configured by a higher layer, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0310] In some embodiments, the processing unit 410 is specifically used for:

[0311] The QCL reference of the second physical channel and / or the second signal is determined based on 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;

[0312] The QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the first CORESET in the time domain unit closest to the second physical channel and / or the second signal;

[0313] The QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

[0314] In some embodiments, the time-domain unit includes one of the following:

[0315] One or more time slots, time slot group, one or more symbols, symbol group, one or more subframes, subframe group, half frame.

[0316] In some embodiments, the processing unit 410 is specifically used for:

[0317] When the first control information is sent, the QCL reference of the second physical channel and / or the second signal is determined according to the first control information and / or preset rules.

[0318] In some embodiments, the processing unit 410 is specifically used for:

[0319] If the time-domain offset 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, the QCL reference for the second physical channel and / or the second signal is determined based on the first control information; or...

[0320] If the time-domain offset between sending the first control information and sending the second physical channel and / or the second signal is less than a preset threshold, the QCL reference of the second physical channel and / or the second signal is determined according to a preset rule.

[0321] In some embodiments, the first control information includes Transmission Configuration Indication (TCI) information, which is used to indicate the QCL reference of the second physical channel and / or the second signal.

[0322] In some embodiments, the processing unit 410 is specifically used for:

[0323] When the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel.

[0324] In some embodiments, the association between the first physical channel and the second physical channel and / or the second signal includes at least one of the following:

[0325] The first physical channel is continuous in the time domain with the second physical channel and / or the second signal;

[0326] The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; or

[0327] The first time-domain resources corresponding to the first physical channel and the second time-domain resources corresponding to the second physical channel and / or the second signal partially or completely overlap in the time domain.

[0328] In some embodiments, the first physical channel is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0329] In some embodiments, the processing unit 410 is specifically used for:

[0330] When the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal.

[0331] In some embodiments, the association between the first signal and the second physical channel and / or the second signal includes at least one of the following:

[0332] The first signal is continuous in the time domain with the second physical channel and / or the second signal;

[0333] The first signal and the second physical channel and / or the second signal are located in the same time domain; or

[0334] The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

[0335] In some embodiments, the first signal is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

[0336] In some embodiments, the second device 400 may further include:

[0337] A communication unit is used to transmit pre-configuration information of the second physical channel and / or the second signal.

[0338] In some embodiments, the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal.

[0339] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0340] Periodic Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS), Semi-Persistent Scheduling Physical Downlink Shared Channel (SPS PDSCH), and Physical Downlink Control Channel (PDCCH) transmitted in the Control Resource Set (CORESET) or CORESET.

[0341] 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 a scheduled CSI-RS.

[0342] In some embodiments, the second physical channel and / or the second signal includes at least one of the following:

[0343] The periodic channel state information reference signal (CSI-RS) in the side link, the tracking reference signal (TRS) in the side link, the semi-persistent scheduling physical side link shared channel (SPS PSSCH), and the physical side link control channel (PSCCH) transmitted in the control resource set (CORESET) or CORESET.

[0344] In some embodiments, the first control information includes sidelink control information (SCI), and / or the first physical channel includes a scheduled physical sidelink shared channel (PSSCH), and / or the first signal includes a scheduled channel state information reference signal (CSI-RS) in the sidelink.

[0345] It should be understood that the apparatus embodiments and method embodiments can correspond to each other, and similar descriptions can be referred to the method embodiments. Specifically, Figure 10 The first device 300 shown may correspond to the method 200 of the embodiments of this application, and the foregoing and other operations and / or functions of each unit in the first device 300 are respectively for implementing Figure 2 The corresponding processes in each method are similar. Figure 11 The second device 400 shown may also correspond to the method 200 of the embodiments of this application, and the foregoing and other operations and / or functions of each unit in the second device 400 are respectively for implementing Figure 2 The corresponding processes in each method are described below; for the sake of brevity, they will not be elaborated here.

[0346] The communication device of this application embodiment has been described above from the perspective of functional modules in conjunction with the accompanying drawings. It should be understood that this functional module can be implemented in hardware, in software instructions, or in a combination of hardware and software modules. Specifically, the steps of the method embodiments in this application can be completed by integrated logic circuits in the processor's hardware and / or by software instructions. The steps of the method disclosed in this application embodiment can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. Optionally, the software module can be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps in the above method embodiments.

[0347] For example, the processing unit and communication unit mentioned above can be implemented by a processor and a transceiver, respectively.

[0348] Figure 12 This is a schematic structural diagram of a communication device 500 according to an embodiment of this application.

[0349] like Figure 12 As shown, the communication device 500 may include a processor 510.

[0350] The processor 510 can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0351] like Figure 12 As shown, the communication device 500 may also include a memory 520.

[0352] The memory 520 can be used to store instruction information, as well as code and instructions executed by the processor 510. The processor 510 can call and run computer programs from the memory 520 to implement the methods in this embodiment. The memory 520 can be a separate device independent of the processor 510, or it can be integrated into the processor 510.

[0353] like Figure 12 As shown, the communication device 500 may also include a transceiver 530.

[0354] The processor 510 can control the transceiver 530 to communicate with other devices; specifically, it can send information or data to other devices or receive information or data sent by other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, and the number of antennas may be one or more.

[0355] It should be understood that the various components in the communication device 500 are connected through a bus system, which includes a data bus, a power bus, a control bus, and a status signal bus.

[0356] It should also be understood that the communication device 500 can be the first device in the embodiments of this application, and the communication device 500 can implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application. That is, the communication device 500 in the embodiments of this application can correspond to the first device 300 in the embodiments of this application, and can correspond to executing the method 200 according to the embodiments of this application. For the sake of simplicity, it will not be described in detail here. Similarly, the communication device 500 can be the second device in the embodiments of this application, and the communication device 500 can implement the corresponding processes implemented by the second device in the various methods of the embodiments of this application. That is, the communication device 500 in the embodiments of this application can correspond to the second device 400 in the embodiments of this application, and can correspond to executing the method 200 according to the embodiments of this application. For the sake of simplicity, it will not be described in detail here.

[0357] In addition, a chip is also provided in this application embodiment.

[0358] For example, the chip may be an integrated circuit chip with signal processing capabilities, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The chip may also be referred to as a system-on-a-chip (SoC), system-on-a-chip (SoC), chip system, or system-on-chip (SoC), etc. Optionally, the chip can be applied to various communication devices, enabling the communication device equipped with the chip to execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0359] Figure 13 This is a schematic structural diagram of chip 600 according to an embodiment of this application.

[0360] like Figure 13 As shown, the chip 600 includes a processor 610.

[0361] The processor 610 can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0362] like Figure 13 As shown, the chip 600 may further include a memory 620.

[0363] The processor 610 can call and run computer programs from the memory 620 to implement the methods in the embodiments of this application. The memory 620 can be used to store instruction information, as well as code, instructions, etc., executed by the processor 610. The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0364] like Figure 13 As shown, the chip 600 may also include an input interface 630.

[0365] The processor 610 can control the input interface 630 to communicate with other devices or chips, specifically, it can acquire information or data sent by other devices or chips.

[0366] like Figure 13 As shown, the chip 600 may also include an output interface 640.

[0367] The processor 610 can control the output interface 640 to communicate with other devices or chips, specifically, it can output information or data to other devices or chips.

[0368] It should be understood that the chip 600 can be applied to the first device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application, and can also implement the corresponding processes implemented by the second device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0369] It should also be understood that the various components in the chip 600 are connected through a bus system, which includes a data bus, a power bus, a control bus, and a status signal bus.

[0370] The processors mentioned above may include, but are not limited to:

[0371] General-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0372] The processor can be used to implement or execute the methods, steps, and logic diagrams disclosed in the embodiments of this application. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above methods.

[0373] The memory mentioned above includes, but is not limited to:

[0374] Volatile memory and / or non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

[0375] It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

[0376] This application also provides a computer-readable storage medium for storing computer programs. The computer-readable storage medium stores one or more programs, which include instructions that, when executed by a portable electronic device including multiple applications, enable the portable electronic device to perform the methods of the method embodiments.

[0377] Optionally, the computer-readable storage medium can be applied to the first device in the embodiments of this 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 this application. For simplicity, further details are omitted here. Optionally, the computer-readable storage medium can be applied to the second device in the embodiments of this 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 this application. For simplicity, further details are omitted here.

[0378] This application also provides a computer program product, including a computer program.

[0379] Optionally, the computer program product can be applied to the first device in the embodiments of this 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 this application. For simplicity, it will not be described in detail here. Optionally, the computer program product can be applied to the second device in the embodiments of this 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 this application. For simplicity, it will not be described in detail here.

[0380] This application also provides a computer program. When the computer program is executed by a computer, the computer can perform the methods of the method embodiments.

[0381] Optionally, the computer program can be applied to the first device in the embodiments of this application. When the computer program runs on a computer, it causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For simplicity, this will not be described in detail here. Optionally, the computer program can be applied to the second device in the embodiments of this application. When the computer program runs on a computer, it causes the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application. For simplicity, this will not be described in detail here.

[0382] Furthermore, embodiments of this application also provide a communication system, which may include the first device and the second device mentioned above, to form such a communication system. Figure 1 The communication system shown will not be described in detail here for the sake of brevity. It should be noted that the term "system" in this article can also be referred to as "network management architecture" or "network system," etc.

[0383] It should also be understood that the terminology used in the embodiments of this application and the appended claims is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. For example, the singular forms “a,” “the,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0384] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application. If implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, in essence, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in the embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0385] Those skilled in the art will also recognize that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the division of units, modules, or components in the device embodiments described above is merely a logical functional division; in actual implementation, there may be other division methods. For instance, multiple units, modules, or components may be combined or integrated into another system, or some units, modules, or components may be ignored or not executed. As another example, the units / modules / components described above as separate / display components may or may not be physically separated; that is, they may be located in one place or distributed across multiple network units. Some or all of the units / modules / components can be selected according to actual needs to achieve the purpose of the embodiments of this application. Finally, it should be noted that the mutual coupling or direct coupling or communication connection shown or discussed above can be through some interfaces; the indirect coupling or communication connection of devices or units can be electrical, mechanical, or other forms.

[0386] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that, The method is applied to a first device, and the method includes: Based on at least one of the preset rules, first control information, first physical channel, and first signal, determine the quasi-co-located QCL reference of the second physical channel and / or the second signal, wherein the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal; Wherein, 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; The first physical channel being associated with the second physical channel and / or the second signal includes at least one of the following: The first physical channel is continuous in the time domain with the second physical channel and / or the second signal; The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; The first time-domain resource corresponding to the first physical channel partially or completely overlaps with the second time-domain resource corresponding to the second physical channel and / or the second signal in the time domain. The first signal being associated 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 and the second physical channel and / or the second signal are located in the same time domain unit; The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

2. The method according to claim 1, characterized in that, The step of determining the quasi-co-address QCL reference for the second physical channel and / or the second signal based on at least one of the preset rules, first control information, first physical channel, and first signal includes: The QCL reference for the second physical channel and / or the second signal is determined according to preset rules.

3. The method according to claim 2, characterized in that, The step of determining the quasi-co-address QCL reference for the second physical channel and / or the second signal according to a preset rule includes: The QCL reference of the second physical channel and / or the second signal is determined based on 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, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the 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, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference configured by the higher layer; or In the absence of the first control information, the first physical channel, or the first signal, and without QCL information configured by a higher layer, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

4. The method according to claim 3, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal based on 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 includes: The QCL reference of the second physical channel and / or the second signal is determined based on 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 The QCL reference of the second physical channel and / or the second signal is determined based on 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 based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

5. The method according to claim 3, characterized in that, The time-domain unit includes one of the following: One or more time slots, time slot group, one or more symbols, symbol group, one or more subframes, subframe group, half frame.

6. The method according to any one of claims 1 to 5, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, first control information, first physical channel, and first signal includes: Upon 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 preset rules.

7. The method according to claim 6, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to the first control information and / or preset rules includes: If the time-domain offset 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, the QCL reference for the second physical channel and / or the second signal is determined based on the first control information; or... If the time-domain offset between receiving the first control information and receiving the second physical channel and / or the second signal is less than a preset threshold, the QCL reference of the second physical channel and / or the second signal is determined according to a preset rule.

8. The method according to claim 6, characterized in that, The first control information includes Transmission Configuration Indication (TCI) information, which is used to indicate the QCL reference of the second physical channel and / or the second signal.

9. The method according to any one of claims 1 to 5, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, first control information, first physical channel, and first signal includes: When the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel.

10. The method according to claim 1, characterized in that, The first physical channel is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

11. The method according to any one of claims 1 to 5, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, first control information, first physical channel, and first signal includes: When the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal.

12. The method according to claim 1, characterized in that, The first signal is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

13. The method according to any one of claims 1 to 5, characterized in that, The method further includes: Obtain the pre-configuration information of the second physical channel and / or the second signal.

14. The method according to any one of claims 1 to 5, characterized in that, 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), and Physical Downlink Control Channel (PDCCH) transmitted in the Control Resource Set (CORESET) or CORESET.

15. The method according to claim 14, characterized in that, 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 a scheduled CSI-RS.

16. The method according to any one of claims 1 to 5, characterized in that, The second physical channel and / or the second signal includes at least one of the following: The periodic channel state information reference signal (CSI-RS) in the side link, the tracking reference signal (TRS) in the side link, the semi-persistent scheduling physical side link shared channel (SPS PSSCH), and the physical side link control channel (PSCCH) transmitted in the control resource set (CORESET) or CORESET.

17. The method according to claim 16, characterized in that, The first control information includes sidelink control information (SCI), and / or the first physical channel includes a scheduled physical sidelink shared channel (PSSCH), and / or the first signal includes a scheduled channel state information reference signal (CSI-RS) in the sidelink.

18. A wireless communication method, characterized in that, The method is applied to a second device, and the method includes: Based on at least one of the preset rules, first control information, first physical channel, and first signal, determine the quasi-co-located QCL reference of the second physical channel and / or the second signal, wherein the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal; Wherein, 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; The first physical channel being associated with the second physical channel and / or the second signal includes at least one of the following: The first physical channel is continuous in the time domain with the second physical channel and / or the second signal; The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; The first time-domain resource corresponding to the first physical channel partially or completely overlaps with the second time-domain resource corresponding to the second physical channel and / or the second signal in the time domain. The first signal being associated 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 and the second physical channel and / or the second signal are located in the same time domain unit; The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

19. The method according to claim 18, characterized in that, The step of determining the quasi-co-address QCL reference for the second physical channel and / or the second signal based on at least one of the preset rules, first control information, first physical channel, and first signal includes: The QCL reference for the second physical channel and / or the second signal is determined according to preset rules.

20. The method according to claim 19, characterized in that, The step of determining the quasi-co-address QCL reference for the second physical channel and / or the second signal according to a preset rule includes: The QCL reference of the second physical channel and / or the second signal is determined based on 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, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the 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, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference configured by the higher layer; or In the absence of the first control information, the first physical channel, or the first signal, and without QCL information configured by a higher layer, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference corresponding to the CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

21. The method according to claim 20, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal based on 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 includes: The QCL reference of the second physical channel and / or the second signal is determined based on 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 The QCL reference of the second physical channel and / or the second signal is determined based on 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 based on the QCL reference corresponding to the last CORESET in the time-domain unit closest to the second physical channel and / or the second signal.

22. The method according to claim 20, characterized in that, The time-domain unit includes one of the following: One or more time slots, time slot group, one or more symbols, symbol group, one or more subframes, subframe group, half frame.

23. The method according to any one of claims 18 to 22, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, first control information, first physical channel, and first signal includes: When the first control information is sent, the QCL reference of the second physical channel and / or the second signal is determined according to the first control information and / or preset rules.

24. The method according to claim 23, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to the first control information and / or preset rules includes: If the time-domain offset 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, the QCL reference for the second physical channel and / or the second signal is determined based on the first control information; or... If the time-domain offset between sending the first control information and sending the second physical channel and / or the second signal is less than a preset threshold, the QCL reference of the second physical channel and / or the second signal is determined according to a preset rule.

25. The method according to claim 23, characterized in that, The first control information includes Transmission Configuration Indication (TCI) information, which is used to indicate the QCL reference of the second physical channel and / or the second signal.

26. The method according to any one of claims 18 to 22, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, first control information, first physical channel, and first signal includes: When the first physical channel is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first physical channel.

27. The method according to claim 18, characterized in that, The first physical channel is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

28. The method according to any one of claims 18 to 22, characterized in that, The step of determining the QCL reference of the second physical channel and / or the second signal according to at least one of the preset rules, first control information, first physical channel, and first signal includes: When the first signal is associated with the second physical channel and / or the second signal, the QCL reference of the second physical channel and / or the second signal is determined based on the QCL reference of the first signal.

29. The method according to claim 18, characterized in that, The first signal is scheduled by the first control information, wherein the first control information includes Transmission Configuration Indicator (TCI) information, or the first control information does not include Transmission Configuration Indicator (TCI) information.

30. The method according to any one of claims 18 to 22, characterized in that, The method further includes: Send pre-configuration information for the second physical channel and / or the second signal.

31. The method according to any one of claims 18 to 22, characterized in that, 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), and Physical Downlink Control Channel (PDCCH) transmitted in the Control Resource Set (CORESET) or CORESET.

32. The method according to claim 31, characterized in that, 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 a scheduled CSI-RS.

33. The method according to any one of claims 18 to 22, characterized in that, The second physical channel and / or the second signal includes at least one of the following: The periodic channel state information reference signal (CSI-RS) in the side link, the tracking reference signal (TRS) in the side link, the semi-persistent scheduling physical side link shared channel (SPS PSSCH), and the physical side link control channel (PSCCH) transmitted in the control resource set (CORESET) or CORESET.

34. The method according to claim 33, characterized in that, The first control information includes sidelink control information (SCI), and / or the first physical channel includes a scheduled physical sidelink shared channel (PSSCH), and / or the first signal includes a scheduled channel state information reference signal (CSI-RS) in the sidelink.

35. A first device for wireless communication, characterized in that, include: The processing unit is configured to determine a quasi-co-located QCL reference for a second physical channel and / or a second signal based on at least one of a preset rule, first control information, a first physical channel, and a first signal, wherein the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal. Wherein, 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; The first physical channel being associated with the second physical channel and / or the second signal includes at least one of the following: The first physical channel is continuous in the time domain with the second physical channel and / or the second signal; The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; The first time-domain resource corresponding to the first physical channel partially or completely overlaps with the second time-domain resource corresponding to the second physical channel and / or the second signal in the time domain. The first signal being associated 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 and the second physical channel and / or the second signal are located in the same time domain unit; The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

36. A second device for wireless communication, characterized in that, include: The processing unit is configured to determine a quasi-co-located QCL reference for a second physical channel and / or a second signal based on at least one of a preset rule, first control information, a first physical channel, and a first signal, wherein the second physical channel includes a periodic physical channel, and / or the second signal includes a periodic reference signal. Wherein, 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; The first physical channel being associated with the second physical channel and / or the second signal includes at least one of the following: The first physical channel is continuous in the time domain with the second physical channel and / or the second signal; The first physical channel and the second physical channel and / or the second signal are located in the same time domain unit; The first time-domain resource corresponding to the first physical channel partially or completely overlaps with the second time-domain resource corresponding to the second physical channel and / or the second signal in the time domain. The first signal being associated 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 and the second physical channel and / or the second signal are located in the same time domain unit; The first signal and the corresponding third time-domain resource partially or completely overlap with the second physical channel and / or the fourth time-domain resource corresponding to the second signal in the time domain.

37. A first device for wireless communication, characterized in that, include: A processor, a memory, and a transceiver, wherein the memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to control the transceiver to perform the method of any one of claims 1 to 17.

38. A second device for wireless communication, characterized in that, include: A processor, a memory, and a transceiver, wherein the memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to control the transceiver to perform the method of any one of claims 18 to 34.

39. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 17 or the method as claimed in any one of claims 18 to 34.

40. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 17 or the method as claimed in any one of claims 18 to 34.

41. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 17 or the method as claimed in any one of claims 18 to 34.

Images