Wireless communication method, apparatus and device, and readable storage medium

Abstract

The invention discloses a wireless communication method, a wireless communication device, wireless communication equipment and a readable storage medium, and belongs to the field of communication. The first information is used for configuring, activating or indicating P first TCI states used for receiving a target downlink channel or a target downlink signal and Q second TCI states used for sending a target uplink channel or a target uplink signal, and P is greater than Q, P is less than Q, or P is equal to Q; p and Q are integers greater than or equal to zero; wherein the P first TCI states comprise X combined TCI states and Y downlink TCI states, X and Y are integers greater than or equal to zero, and X + Y = P; the Q second TCI states comprise K joint TCI states and L uplink TCI states, K and L are integers greater than or equal to zero, and K + L = Q.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a wireless communication method, apparatus, device, and readable storage medium. Background Art

[0002] A network-side device may indicate a corresponding Transmission Configuration Indicator (TCI) state for a target channel or signal. The TCI state includes Quasi-co-located (QCL) information, Path Loss Reference Resource (PL-RS), uplink power control information, etc., so that a terminal can use the TCI state to receive or transmit the target channel or signal.

[0003] In some scenarios, the network may densely deploy Transmit and Receive Points (TRPs) to improve coverage and throughput. A TRP may support receiving uplink signals and transmitting downlink signals, or, considering deployment cost and difficulty and improving uplink coverage, a TRP may only support receiving uplink signals. Therefore, how to implement the indication of TCI states in different scenarios is an urgent problem to be solved. Summary of the Invention

[0004] Embodiments of this application provide a wireless communication method, apparatus, device, and readable storage medium, which can implement the indication of TCI states in deployment scenarios of various types of TRPs.

[0005] In a first aspect, a wireless communication method is provided. The method includes:

[0006] A terminal receives first information, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or target downlink signal and Q second TCI states for transmitting a target uplink channel or target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0007] Among them, the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0008] The Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0009] In a second aspect, a wireless communication method is provided. The method includes:

[0010] The network - side device sends first information to the terminal, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0011] Among them, the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0012] The Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0013] In a third aspect, a wireless communication device is provided, including:

[0014] A receiving unit, configured to receive first information, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0015] Among them, the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0016] The Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0017] In a fourth aspect, a wireless communication device is provided, including:

[0018] A sending unit, configured to send first information to the terminal, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0019] Among them, the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0020] The Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0021] In a fifth aspect, a communication device is provided. The terminal includes a processor and a memory. The memory stores a program or instructions that can be run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect or the steps of the method described in the second aspect are implemented.

[0022] In a sixth aspect, a readable storage medium is provided. A program or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, the steps of the method described in the first aspect or the steps of the method described in the second aspect are implemented.

[0023] In a seventh aspect, a wireless communication system is provided, including: a terminal and a network-side device. The terminal can be used to execute the steps of the method described in the first aspect, and the network-side device can be used to execute the steps of the method described in the second aspect.

[0024] In an eighth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instructions to implement the method described in the first aspect or the method described in the second aspect.

[0025] In a ninth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The program / program product is executed by at least one processor to implement the steps of the wireless communication method described in the first aspect or the steps of the wireless communication method described in the second aspect.

[0026] In the embodiments of the present application, the network-side device can configure, activate or indicate P first TCI states for downlink transmission and Q second TCI states for uplink transmission for the terminal, where P can be greater than Q, or P is less than Q, or P is equal to Q. That is, the network-side device can configure, activate or indicate TCI states with the same number of uplink and downlink, or TCI states with different numbers of uplink and downlink, so as to implement the indication of TCI states in various types of TRP deployment scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application.

[0028] Figure 2 is a schematic diagram of a deployment scenario of a TRP applicable to an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the format of the MAC CE used to activate the TCI state.

[0030] Figure 4 It is a schematic diagram of a wireless communication method provided by an embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of a wireless communication device provided by an embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of another wireless communication device provided by an embodiment of the present application.

[0033] Figure 7 It is a schematic diagram of a communication device provided by an embodiment of the present application.

[0034] Figure 8 It is a hardware structure diagram of a terminal provided by an embodiment of the present application.

[0035] Figure 9 It is a hardware structure diagram of a network-side device provided by an embodiment of the present application. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0037] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0038] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0039] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses NR terms in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0040] Figure 1Block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0041] The terminal can also be referred to as a user equipment (UE), a terminal device, an access terminal, a user unit, a user station, a mobile station, a mobile platform, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device, etc.

[0042] The network-side device 12 may include an access network device or a core network device. Among them, the access network device may also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as Node B (NB), evolved Node B (eNB), next generation Node B (gNB), New Radio Node B (NR Node B), access point, relay base station (RBS), serving base station (SBS), base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), home Node B

[0043] (home Node B, HNB), home evolved Node B, transmission reception point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to a specific technical term. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0044] To facilitate a better understanding of the embodiments of this application, the transmission configuration indicator (TCI) status of the downlink signal transmission related to this application is described.

[0045] In the beam management introduced in the 5G NR system, the network device may configure, activate, or indicate the corresponding TCI status for the downlink signal or downlink channel, uplink signal or uplink channel, so that the terminal uses this TCI status to receive the target downlink signal or target downlink channel, or to transmit the target uplink signal or uplink channel.

[0046] Among them, one TCI status may include the following configurations:

[0047] The TCI state ID is used to identify a TCI state;

[0048] Up to two Quasi-Co-Located (QCL) information.

[0049] Among them, one QCL information further includes the following information:

[0050] The QCL type configuration can be one of QCL-TypeA, QCL-TypeB, QCL-TypeC, QCL-TypeD;

[0051] The cell ID, Bandwidth Part (BWP) ID, and the identifier of the (source) reference signal (which can be the Channel State Information Reference Signal (CSI-RS) resource ID or the Synchronization Signal Block (SSB) index) corresponding to the QCL information.

[0052] Among them, the QCL type of at least one QCL information among the up to two QCL information is one of typeA, typeB, typeC, and the QCL type of the other QCL information (if configured) is QCL type D.

[0053] Among them, the definitions of different QCL type configurations are as follows:

[0054] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0055] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0056] 'QCL-TypeC': {Doppler shift, average delay};

[0057] 'QCL-TypeD': {Spatial Rx parameter}.

[0058] If the network device configures the QCL source reference signal of the target downlink channel through the TCI state to be a certain reference SSB or a certain reference CSI-RS resource, and the QCL type is configured as type A, type B, or type C, then the terminal device may assume that the target large-scale parameters of the target downlink channel and the reference SSB or reference CSI-RS resource are the same, and thus use the same corresponding parameters to receive the target downlink channel. The target large-scale parameters are determined by the QCL type configuration. Similarly, if the network device configures the QCL source reference signal of the target downlink channel through the TCI state to be a certain reference SSB or a certain reference CSI-RS resource, and the QCL type is configured as type D, then the terminal device may use the same receive beam (i.e., Spatial Rx parameter) as that for receiving the reference SSB or reference CSI-RS resource to receive the target downlink channel. Generally, the target downlink channel and its reference SSB or reference CSI-RS resource are transmitted by the same TRP or the same antenna panel or the same beam on the network side. If the transmission TRP or transmission panel or transmission beam of two downlink signals or downlink channels is different, different TCI states are usually configured.

[0059] For ease of understanding the embodiments of the present application, the transmit and receive point (TRP) with only uplink transmission related to the present application is described.

[0060] The network can deploy TRPs densely to improve coverage and throughput. To save the deployment cost and difficulty of TRPs and improve uplink coverage, some of the deployed TRPs can only receive signals without transmitting signals, that is, only have uplink transmission, as Figure 2 shown. Considering from the perspective of network energy saving, allowing the TRP to turn off the downlink transmission link also brings certain benefits. In the scenario of intensive uplink services, the uplink transmission no longer depends on the measurement and assistance of downlink reference signals, and to a certain extent, it can also save the overhead of reference signals.

[0061] For ease of understanding the embodiments of the present application, the multi-TRP (MTRP) scenario related to the present application is described.

[0062] Since Release 16 of the 5G NR system, the multi-TRP (Multi-Transmission and Reception Point, MTRP) scenario has been gradually introduced, that is, multiple TRPs cooperate to send data to the same UE, or multiple TRPs receive data sent by the same UE. Except that coherent joint transmission (CJT) supports up to 4 TRPs to cooperate at most, other transmission schemes support up to 2 TRPs to cooperate at most. Since the backhaul between TRPs is divided into two types: ideal (near real-time information interaction) and non-ideal (large delay in information interaction), the implemented multi-TRP transmission schemes are also different.

[0063] In the case of non-ideal backhaul, the transmission schemes that can be implemented are the MTRP schemes scheduled by multiple downlink control information (DCI), including: the network can configure one of the two control resource set pool indexes (coresetPoolIndex) for different control resource sets

[0064] (Control Resource Set, CORESET). The DCI associated with different coresetPoolIndexes independently schedules their respective physical downlink shared channels (Physical Downlink Shared Channel, PDSCH), and they can be completely / partially / non-overlapped in time-frequency resources; the DCI associated with different coresetPoolIndexes independently schedules their respective physical uplink shared channels (Physical Uplink Shared Channel, PUSCH), and they can be completely / partially / non-overlapped in time-frequency resources. When the PUSCH is completely / partially overlapped, the UE needs to have the ability of simultaneous transmission with multiple panels (STxMP).

[0065] In the case of ideal backhaul, in addition to the above-mentioned MTRP schemes scheduled by multiple DCI, the transmission schemes that can be implemented also include:

[0066] Two TRPs repeat to send PDCCH;

[0067] Two TRPs send PDCCH in the single frequency network (SFN, Single Frequency Network) mode;

[0068] The PDSCH scheduled by a single DCI is transmitted by two TRPs in a repeated manner of space division multiplexing (SDM), frequency division multiplexing (FDM), time division multiplexing (TDM), or in an SFN manner.

[0069] The UE transmits repetitions of the PUCCH to the two TRPs separately, or the UE with the ability to transmit multiple panels simultaneously transmits the PUCCH in an SFN manner.

[0070] The UE transmits repetitions of the PUSCH scheduled by a single DCI or configured grant (CG) to the two TRPs separately, or transmits the PUSCH simultaneously in an SDM or SFN manner.

[0071] To facilitate the understanding of the embodiments of this application, the beam indication mechanism related to this application is described.

[0072] In the 5G NR system, after beam measurement and beam reporting, the network can perform beam indication on the downlink and uplink channels or signals for establishing a beam link between the network and the UE to achieve the transmission of the target channel or signal. For the UE, the beam information is the receive spatial domain filter used by the UE to receive the downlink channel / signal and the transmit spatial domain filter used by the UE to transmit the uplink channel / signal.

[0073] The 5G NR system Rel-17 introduced a unified TCI (UTCI) framework for a single TRP, that is, a common beam indicated by the network using a media access control control element (MAC CE) and / or DCI can be used for the transmission of multiple target channels and signals. The beam information is jointly determined by the QCL information type QCL-TypeD and the source reference signal (source RS) included in the transmission configuration indication (TCI) state. The UE can use the receive / transmit spatial domain filter used to receive or transmit the source reference signal to receive or transmit other channels / signals that have a quasi-co-location relationship with the source reference signal. Specifically, the source reference signals of the TCI state under the unified TCI framework include:

[0074] Downlink: SSB, CSI-RS for beam training, Tracking Reference Signal (TRS).

[0075] Uplink: SSB, CSI-RS for beam management, TRS, Sounding Reference Signal (SRS) for beam management.

[0076] Based on whether the uplink and downlink beams are the same, the network can configure the following two modes:

[0077] Joint TCI mode: The network indicates a joint TCI state for the target downlink channel / signal and the target uplink channel / signal, that is, the target downlink channel / signal and the target uplink channel / signal use the same TCI state.

[0078] Separate TCI mode: The network indicates two TCI states, namely the downlink TCI state (DL TCI state) and the uplink TCI state (UL TCI state), for the target downlink channel / signal and the target uplink channel / signal respectively, that is, the target uplink channel / signal and the target downlink channel / signal use different TCI states.

[0079] The network configures a TCI state pool for the UE through Radio Resource Control (RRC) signaling, and configures and activates the TCI state corresponding to at least one code point through MAC CE. Each code point corresponds to a {joint TCI state}, or the complete set or subset of {DL TCI state, UL TCI state}.

[0080] That is, in the Joint TCI mode, each code point (or TCI code point) corresponds to a joint TCI state;

[0081] In the Separate TCI mode, each code point (or TCI code point) can correspond to the complete set or subset of {DL TCI state, UL TCI state}.

[0082] In the Separate TCI mode, when the codepoint indicated by DCI corresponds to a subset of {DL TCI state, UL TCI state}, only the indicated TCI state is updated, while the other TCI state remains unchanged.

[0083] Figure 3 A schematic format diagram of the TCI state activation / deactivation MAC CE is given. Among them, this MAC CE can activate up to 8 TCI codepoints and up to 16 TCI states at most. The Pi field is used to indicate whether the corresponding TCI codepoint corresponds to one TCI state or multiple TCI states. If the Pi field is 1, it means that the i-th TCI codepoint contains a DL TCI state and a UL TCI state; if Pi is 0, it means that the i-th TCI codepoint contains a joint / DL TCI state or a UL TCI state. The D / U field is used to indicate whether the corresponding TCI state ID is a joint / DL state or a UL TCI state. For example, when the value of the D / U field is 1, it represents a joint / DL state, and when the value is 0, it represents a UL TCI state.

[0084] When the TCI state pool configured by RRC only contains one joint TCI state or a pair of {DL TCI state, UL TCI state}, then this TCI state is directly applied to the target channel / signal; when the MAC CE activates a codepoint, the TCI state corresponding to this codepoint is directly applied to the target channel / signal. When the MAC CE activates multiple codepoints, the network-side device then uses the TCI field in DCI format 1_1 / 1_2 to indicate one of the codepoints, and the TCI state corresponding to this codepoint is applied to the target channel / signal. To ensure the reliability of updating the TCI indication, the network-side device and the UE jointly determine the effective time (Beam Application Time, BAT) of the latest indicated TCI state according to the acknowledgment (ACK) feedback: when the TCI state indicated by DCI is different from the original TCI state, the latest indicated TCI state starts to be used in the first time slot after Y symbols of the last symbol of the ACK corresponding to this DCI.

[0085] In addition, the unified TCI framework also associates the power control parameters with the TCI state, and the path loss reference signal (PLRS) is configured within the TCI state (joint TCI state or UL TCI state) or associated with the TCI state. Other parameters (P0, alpha, closed loop index) in the power control parameters used for different uplink channels / signals are respectively configured and associated with the same TCI state, that is, PUCCH, PUSCH, and SRS have their own power control parameters associated with the TCI state or are included in the configuration information of each channel / signal.

[0086] Considering that different channels / signals or different types of the same channel / signal may use different TCI states, the uplink channels / signals and downlink channels / signals (target channels / signals) using the UTCI state are determined:

[0087] Downlink channels / signals: UE-specific PDSCH, UE-specific CORESET, aperiodic CSI-RS (configurable) for channel information / beam management, non-UE-specific CORESET, and associated PDSCH (configurable), etc.;

[0088] Uplink channels / signals: dynamically granted (DG, Dynamic grant) / CG PUSCH, PUCCH, periodic / semi-persistent / aperiodic SRS (configurable).

[0089] For channels / signals or types of channels / signals other than the target channels / signals, the TCI state or spatial relation used is still determined according to the configuration indication method of Rel-15 / 16.

[0090] In 5G NR system Rel-18, the unified TCI framework is extended to the MTRP scenario, and the basic configuration and indication principles are the same as those of a single TRP. To implement various transmission schemes of MTRP, two TCI states need to be indicated. Therefore:

[0091] In the Joint TCI mode, each codepoint corresponds to the whole set or a subset of {joint TCI state1, joint TCI state2}, and it can also indicate whether each TCI state corresponds to the first TCI state or the second TCI state;

[0092] In the Separate TCI mode, each codepoint can correspond to the entire set or a subset of {DL TCI state1, UL TCI state1, DL TCI state2, UL TCI state2}, and can also indicate whether each DL TCI state corresponds to the first DL TCI state or the second DL TCI state, and indicate whether each UL TCI state corresponds to the first UL TCI state or the second UL TCI state.

[0093] In the above two modes, when the TCI codepoint indicated by the DCI corresponds to a subset, only the TCI states of the indicated subset are updated, while the other TCI states remain unchanged.

[0094] In the case of indicating two joint / DL / UL TCI states (i.e., two joint / DL / UL TCI states are in effect), how each target channel / signal uses the TCI states therein is decoupled from each other, that is, each target channel / signal independently determines to use either one or both of the two indicated joint TCI states, or two DL / UL TCI states.

[0095] Specifically, the TCI selection field in the downlink DCI indicates that various MTRP transmission schemes of the PDSCH scheduled by a single DCI use either one or both of the two joint TCI states, or two DL TCI states; the SRS resource set indicator field in the uplink DCI indicates that various MTRP transmission schemes of the PUSCH scheduled by a single DCI use either one or both of the two joint TCI states, or two UL TCI states.

[0096] The RRC parameter configures that the CORESET using the UTCI state, the aperiodic CSI-RS resource / CSI-RS resource set use either one or both of the two joint TCI states, or two DL TCI states; the RRC parameter configures that each PUCCH resource / PUCCH resource group, the SRS resource using the UTCI state use either one or both of the two joint TCI states, or two UL TCI states.

[0097] The unified TCI framework extension for the MTRP scenario of the 5G NR system Rel-18 only supports that both TRPs are in the joint TCI mode or the independent TCI mode, and does not support the mixed TCI mode. When the network-side device indicates two TCI states, it is considered that there are two TCI states available for both downlink transmission and uplink transmission. In different scenarios, the TRP can support receiving and sending signals, or it can only support receiving signals, or it can only support sending signals. In this case, how to use the TCI state for uplink and downlink transmission, or how to support the mixed TCI mode is an urgent problem to be solved.

[0098] The following will, with reference to the accompanying drawings, through some embodiments and their application scenarios, elaborate on the wireless communication method provided by the embodiments of the present application.

[0099] Figure 4 It is a schematic diagram of a wireless communication method provided by the embodiments of the present application. As Figure 4 shown, the method includes at least the following parts:

[0100] S210, the terminal receives first information, where the first information is used to configure, activate or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0101] Among them, the P first TCI states include X joint TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0102] The Q second TCI states include K joint TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0103] Therefore, the network-side device can configure, activate or indicate TCI states with the same number of uplink and downlink (i.e., uplink-downlink symmetry), or TCI states with different numbers of uplink and downlink (i.e., uplink-downlink asymmetry) for the terminal, so as to meet the transmission requirements of various types of TRP deployment scenarios.

[0104] In some embodiments, the first information is used to configure, activate or indicate P first TCI states and Q second TCI states for one or more component carriers (CCs) or bandwidth parts (BWPs).

[0105] In some embodiments, the first TCI state may be a combined TCI state, or a downlink TCI state.

[0106] In some embodiments, the second TCI state may be a combined TCI state, or an uplink TCI state.

[0107] In some embodiments, when P = Q and the P first TCI states and the Q second TCI states are all combined TCI states, the P first TCI states and the Q second TCI states correspond to the same combined TCI state one by one, that is, one of the P first TCI states and one of the Q second TCI states are the same combined TCI state.

[0108] In some specific embodiments, the first information is used to configure, activate or indicate P combined TCI states (corresponding to P = Q, and both the first TCI state and the second TCI state are combined TCI states). These P combined TCI states can be used for uplink transmission, such as for a terminal to send a target uplink channel or a target uplink signal, and can also be used for downlink transmission, such as for a terminal to receive a target downlink channel or a target downlink signal.

[0109] For example, in the combined TCI mode, the first information can be used to configure, activate or indicate P combined TCI states.

[0110] In some specific embodiments, the first information is used to configure, activate or indicate P uplink TCI states and P downlink TCI states (i.e., P = Q, the first TCI state is an uplink TCI state, and the second TCI state is a downlink TCI state). These P uplink TCI states can be used for uplink transmission, such as for a terminal to send a target uplink channel or a target uplink signal, and these P downlink TCI states can be used for downlink transmission, such as for a terminal to receive a target downlink channel or a target downlink signal.

[0111] For example, in the independent TCI mode, the first information can be used to configure, activate or indicate P uplink TCI states and P downlink TCI states.

[0112] In some specific embodiments, the first information is used to configure, activate or indicate A combined TCI states and B downlink TCI states, where A and B are positive integers. These A combined TCI states can be used for uplink transmission, such as sending a target uplink channel or a target uplink signal, and these A combined TCI states and these B downlink TCI states can be used for downlink transmission, such as receiving a target downlink channel or a target downlink signal.

[0113] For example, in a hybrid TCI mode (i.e., supporting both the joint TCI mode and the independent TCI mode), the first information can be used to configure, activate, or indicate at least one joint TCI state and at least one downlink TCI state.

[0114] In a specific example, A = X = K, and B = Y. That is, X joint TCI states among the P first TCI states are the same as K joint TCI states among the Q second TCI states, both being the A joint TCI states, and L = 0.

[0115] In some specific embodiments, the first information is used to configure, activate, or indicate C joint TCI states and D uplink TCI states, where C and D are positive integers. The C joint TCI states can be used for downlink transmission, such as receiving a target downlink channel or a target downlink signal, and the C joint TCI states and the D uplink TCI states can be used for uplink transmission, such as sending a target uplink channel or a target uplink signal.

[0116] In a specific example, C = X = K, and D = L. That is, X joint TCI states among the P first TCI states are the same as K joint TCI states among the Q second TCI states, both being the C TCI states, and Y = 0.

[0117] For example, in a hybrid TCI mode (i.e., supporting both the joint TCI mode and the independent TCI mode), the first information can be used to configure, activate, or indicate at least one joint TCI state and at least one uplink TCI state.

[0118] Therefore, the embodiments of the present application can support uplink and downlink transmissions in the joint TCI mode, the independent TCI mode, and the hybrid TCI mode.

[0119] It should be understood that the P first TCI states and the Q second TCI states can be different, or partially overlapping, or completely overlapping.

[0120] For example, when the first information is used to configure, activate, or indicate P joint TCI states, it can be considered that the P joint TCI states are the P first TCI states and the P second TCI states.

[0121] For another example, when the first information is used to configure, activate, or indicate P uplink TCI states and P downlink TCI states, the P uplink TCI states and the P downlink TCI states are different.

[0122] For another example, when the first information is used to configure, activate, or indicate at least one combined TCI state and at least one uplink TCI state, the at least one combined TCI state can be considered as the P first TCI states, and the at least one combined TCI state and the at least one uplink TCI state are the Q second TCI states.

[0123] For another example, when the first information is used to configure, activate, or indicate at least one combined TCI state and at least one downlink TCI state, the at least one combined TCI state and the at least one downlink TCI state can be considered as the P first TCI states, and the at least one combined TCI state is the Q second TCI states.

[0124] It should be noted that the embodiments of the present application can be applicable to scenarios where there is only uplink transmission (for example, only the target uplink channel or the target uplink signal needs to be sent), or to scenarios where there is only downlink transmission (for example, only the target downlink channel or the target downlink signal needs to be received), or, can also be applicable to scenarios where there are both uplink transmission and downlink transmission.

[0125] In the embodiments of the present application, when there are uplink transmission (for example, sending the target uplink channel or the target uplink signal) and downlink transmission (for example, receiving the target downlink channel or the target downlink signal), the number of TRPs for uplink transmission and the number of TRPs for downlink transmission can be the same, or, can also be different. Specifically, it is embodied that the number of the first TCI states for downlink transmission and the number of the second TCI states for uplink transmission can be the same or different.

[0126] In some scenarios, the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission, or, the number of the second TCI for uplink transmission is greater than the number of the first TCI for downlink transmission.

[0127] For example, in the MTRP scenario, some TRPs only perform uplink transmission, and some other TRPs perform downlink transmission and uplink transmission, that is, some TRPs are UL-only TRPs.

[0128] Specifically, for example, TRP1 only receives signals (that is, TRP1 is a UL-only TRP), TRP2 can receive and send signals, and the terminal is scheduled to send the target uplink channel or the target uplink signal to TRP1 and TRP2, and receive the target downlink channel or the target downlink signal sent by TRP2. In this case, it can be considered that the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission. Therefore, the number of TCI states used by the terminal for uplink transmission is greater than the number of TCI states for downlink transmission.

[0129] In some scenarios, the number of TRPs corresponding to uplink transmission is less than the number of TRPs corresponding to downlink transmission, or the number of the first TCI for downlink transmission is greater than the number of the second TCI for uplink transmission.

[0130] For example, in the MTRP scenario, some TRPs only perform downlink transmission, and some other TRPs perform both downlink and uplink transmission, that is, a scenario where some TRPs are DL-only TRPs.

[0131] Specifically, for example, TRP2 only sends signals (i.e., TRP2 is a DL-only TRP), TRP1 can receive and send signals, the terminal is scheduled to send a target uplink channel or a target uplink signal to TRP1, and receive a target downlink channel or a target downlink signal sent by TRP1 and TRP2. In this case, it can be considered that the number of TRPs corresponding to downlink transmission is greater than the number of TRPs corresponding to uplink transmission. Therefore, the number of TCI states used by the terminal for downlink transmission is greater than the number of TCI states for uplink transmission.

[0132] In some embodiments, the target downlink channel may include, for example, but is not limited to at least one of the following:

[0133] PDSCH, PDCCH.

[0134] In some embodiments, the target uplink channel may include, for example, but is not limited to at least one of the following:

[0135] PUSCH, PUCCH.

[0136] In some embodiments, the target downlink signal may refer to a downlink signal sent by a network-side device to the terminal, such as CSI-RS.

[0137] In some embodiments, the target uplink signal may refer to an uplink signal sent by the terminal to the network-side device, such as SRS.

[0138] In some embodiments, the first information may be sent through at least one of the following signaling:

[0139] RRC signaling, MAC CE, DCI.

[0140] For example, the first information is carried by RRC signaling to configure the P first TCI states and the Q second TCI states.

[0141] For another example, the first information is carried by the codepoint of MAC CE to activate the P first TCI states and the Q second TCI states.

[0142] For another example, the first information is carried by DCI and is used to indicate, from multiple codepoints, one codepoint corresponding to the P first TCI states and the Q second TCI states.

[0143] In some embodiments, the source reference signal of the Y downlink TCI states among the P first TCI states is a downlink reference signal.

[0144] In some embodiments, the source reference signal of the L uplink TCI states among the Q second TCI states is an uplink reference signal.

[0145] Optionally, the downlink reference signal may include, but is not limited to, at least one of the following:

[0146] SSB, CSI-RS, TRS.

[0147] Optionally, the uplink reference signal may include, but is not limited to, SRS.

[0148] In some embodiments, the P first TCI states and the Q second TCI states belong to the same TCI state list, where the same TCI state list includes TCI states with a downlink reference signal as the source reference signal and TCI states with an uplink reference signal as the source reference signal. Optionally, the TCI state list is predefined or configured by a network-side device.

[0149] In some embodiments, the P first TCI states belong to a first TCI state list, and the Q second TCI states belong to a second TCI state list, where the first TCI state list includes TCI states with a downlink reference signal as the source reference signal, and the second TCI state list includes TCI states with an uplink reference signal as the source reference signal. Optionally, the first TCI state list and the second TCI state list are predefined or configured by a network-side device.

[0150] In some embodiments, the terminal may use the target first TCI state among the P first TCI states for downlink transmission.

[0151] For example, when P is equal to 1, the terminal may use the one first TCI state for downlink transmission, that is, the one first TCI state is the target first TCI state.

[0152] For another example, when P is greater than 1, the terminal may use the target first TCI state among the P first TCI states for downlink transmission. Optionally, the target first TCI state may include one or more first TCI states, for example, including one or two first TCI states. Specifically, for example, it includes one or two combined TCI states, or includes one or two downlink TCI states, or includes one combined TCI state and one downlink TCI state.

[0153] Hereinafter, in combination with Embodiment 1, the method for determining the target first TCI state will be described.

[0154] Embodiment 1: Determination of the target first TCI state

[0155] Embodiment 1-1:

[0156] In some embodiments, the method 200 further includes:

[0157] The terminal determines M first TCI states among the P first TCI states;

[0158] Receiving the target downlink channel or target downlink signal using the target first TCI state among the M first TCI states, where M is a positive integer and M is less than or equal to P.

[0159] That is, the target first TCI state is determined from the M first TCI states.

[0160] Optionally, Embodiment 1-1 may be applicable to a scenario where there is a UL-only TRP, or the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission, or the number of second TCI states used for uplink transmission is greater than the number of first TCI states used for downlink transmission.

[0161] In this case, it can be understood that the number of TCI states indicated by the network-side device available for downlink transmission is greater than the number of TCI states required for the terminal to perform downlink transmission. Therefore, the terminal may first select M first TCI states among the P first TCI states and further use the target first TCI state of the M first TCI states for downlink transmission.

[0162] In some embodiments, the terminal determines M first TCI states among the P first TCI states, including:

[0163] When P is equal to Q, the terminal determines the M first TCI states among the P first TCI states.

[0164] Optionally, when P is equal to Q, it can be considered that the network device indicates to the terminal the same number of first TCI states for downlink transmission and the same number of second TCI states for uplink transmission.

[0165] Optionally, P being equal to Q may include at least one of the following cases:

[0166] The first information indicates P combined TCI states, the P combined TCI states can be used for uplink transmission, and M of the P combined TCI states can be used for downlink transmission;

[0167] The first information indicates P uplink TCI states and P downlink TCI states, the P uplink TCI states can be used for uplink transmission, and M of the P downlink TCI states can be used for downlink transmission.

[0168] For example, when the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission, the network device can still indicate to the terminal the same number of first TCI states for downlink transmission and the same number of second TCI states for uplink transmission. For example, it indicates P combined TCI states, or indicates P uplink TCI states and P downlink TCI states. That is, in the embodiments of the present application, the indication method of the network device does not have to be changed. In this way, the number of TCI states available for downlink transmission indicated by the network device is greater than the number of TCI states required for the terminal to perform downlink transmission. Therefore, the terminal can first select M first TCI states from the P first TCI states, which is equivalent to reducing the number of first TCI states available for downlink transmission. In this way, the same method can be adopted for subsequent selection of the target first TCI state and the target second TCI state, which can better be compatible with the prior art.

[0169] In some embodiments, the M first TCI states are indicated by the network device, or can also be selected by the terminal itself. For example, the terminal selects M first TCI states from the P first TCI states based on a preset rule. By the terminal itself determining the M first TCI states, the signaling overhead of the network device can be saved.

[0170] In some implementation manners, the terminal determines the M first TCI states from the P first TCI states according to the first indication information;

[0171] Wherein, the first indication information is used to indicate at least one of the following:

[0172] The target downlink channel or the target downlink signal can be received by using the M first TCI states among the P first TCI states;

[0173] Information on the M first TCI states among the P first TCI states that can be used for the target downlink channel or target downlink signal.

[0174] Optionally, the first indication information can be sent through at least one of the following signaling:

[0175] RRC signaling, MAC CE, DCI.

[0176] For example, after receiving the first information, the network-side device can indicate, through the first indication information, which M first TCI states among the P first TCI states are to be used for downlink transmission.

[0177] In some other implementation manners, the terminal determines the M first TCI states among the P first TCI states according to the second information;

[0178] wherein, the second information includes at least one of the following:

[0179] Source reference signals corresponding to the P first TCI states;

[0180] Preset identifiers of the P first TCI states;

[0181] Preset arrangement orders of the P first TCI states.

[0182] Optionally, in the case where the first indication information does not indicate which M first TCI states among the P first TCI states are to be used, the terminal can determine which M first TCI states among the P first TCI states according to the second information.

[0183] For example, the M first TCI states include the first TCI states among the P first TCI states whose source reference signals are downlink reference signals, or the M first TCI states do not include the first TCI states whose source reference signals are uplink reference signals. Selecting the TCI states whose source reference signals are downlink reference signals among the P first TCI states to form the M first TCI states, and then receiving the target downlink channel or target downlink signal based on the target first TCI state among the M first TCI states is beneficial to ensuring the reception performance of the target downlink channel or target downlink signal.

[0184] For another example, the terminal can determine M first TCI states among the P first TCI states according to the identifiers of the P first TCI states.

[0185] Exemplarily, the M first TCI states include the M first TCI states with the smallest identifiers among the P first TCI states, or the M first TCI states with the largest identifiers, etc. Selecting the M first TCI states with the smallest or largest identifiers is simple to implement and helps reduce the processing complexity of the terminal.

[0186] For another example, the terminal may determine M first TCI states among the P first TCI states according to the arrangement order of the P first TCI states.

[0187] Exemplarily, the M first TCI states include the M first TCI states with a relatively forward arrangement order among the P first TCI states, or the M first TCI states with a relatively backward arrangement order. Selecting the first M or the last M of the P first TCI states is simple to implement and helps reduce the processing complexity of the terminal.

[0188] Optionally, the identifiers of the P first TCI states are predefined, and the arrangement order of the P first TCI states is predefined.

[0189] Embodiment 1-2:

[0190] The terminal receives the target downlink channel or the target downlink signal using the target first TCI state among the P first TCI states.

[0191] The difference from Embodiment 1-1 is that the terminal can directly determine the target first TCI state among the P first TCI states without first determining M first TCI states among the P first TCI states.

[0192] In some embodiments of the present application, the method 200 further includes:

[0193] The terminal determines the target first TCI state for receiving the target downlink channel or the target downlink signal among the P first TCI states or the M first TCI states according to the second indication information;

[0194] wherein the second indication information is used to indicate the target first TCI state for the target downlink channel or the target downlink signal among the P first TCI states or the M first TCI states.

[0195] Optionally, the second indication information may be sent through at least one of the following signaling:

[0196] RRC signaling, MAC CE, DCI.

[0197] For example, after sending the first information, the network-side device may indicate the target first TCI state among the P first TCI states through the second indication information.

[0198] For another example, after sending the first information and the first indication information, the network-side device may indicate the target first TCI state among the M first TCI states among the P first TCI states through the second indication information.

[0199] In some embodiments, the second indication information may be obtained from the applied Indicated TCI State or from the TCI selection field.

[0200] Optionally, the applyIndicatedTCIState includes at least one of the following:

[0201] The RRC configuration parameters of the CORESET;

[0202] The RRC configuration parameters of the PDSCH scheduled by DCI format 1_0;

[0203] The RRC configuration parameters of the aperiodic (AP) CSI-RS.

[0204] Optionally, the TCI selection field is included in DCI format 1_1 / 1_2.

[0205] In some embodiments, when M is greater than 1, the terminal determines the target first TCI state for receiving the target downlink channel or target downlink signal among the M first TCI states according to the second indication information, where the second indication information is used to indicate the target first TCI state among the M first TCI states for the target downlink channel or target downlink signal.

[0206] In some embodiments, when M is equal to 1, the second indication information is ignored, or it is determined that the second indication information is invalid. For example, when there is the first indication information and M is equal to 1, the second indication information is ignored, or it is determined that the second indication information is invalid.

[0207] In some embodiments, when P is greater than 1, the terminal determines the target first TCI state for receiving the target downlink channel or target downlink signal among the M first TCI states according to the second indication information, where the second indication information is used to indicate the target first TCI state among the P first TCI states for the target downlink channel or target downlink signal.

[0208] In some embodiments, when P equals 1, the second indication information is ignored, or it is determined that the second indication information is invalid.

[0209] In some embodiments, when the terminal determines M first TCI states among P first TCI states and M is greater than 1, the second indication information may indicate the target first TCI state among the M first TCI states for the target downlink channel or target downlink signal. Therefore, the number of bits or the number of states of the second indication information may be determined by M. For example, if M is 2, the second indication information may be 2 bits or three states, that is, it indicates using the first first TCI state, the second first TCI state, or both the first and second first TCI states among the two first TCI states.

[0210] In some embodiments, when the terminal does not perform the operation of determining M first TCI states among P first TCI states and P is greater than 1, the second indication information may indicate the target first TCI state among the P first TCI states for the target downlink channel or target downlink signal. Therefore, the number of bits or the number of states of the second indication information may be determined by P or X + Y.

[0211] In some embodiments, the terminal may also determine the target first TCI state among P first TCI states or M first TCI states according to a preset rule. For example, the target first TCI state is selected according to the source reference signal, identifier, or arrangement order corresponding to the TCI state. For the specific implementation, refer to the related implementation of determining M first TCI states among P first TCI states. For the sake of brevity, it will not be elaborated here.

[0212] In some embodiments, the terminal may use the target second TCI state among the Q second TCI states for uplink transmission.

[0213] For example, when Q equals 1, the terminal may use this one second TCI state for uplink transmission, that is, this one second TCI state is the target second TCI state.

[0214] Again, for example, when Q is greater than 1, the terminal may use the target second TCI state among the Q second TCI states for uplink transmission. Optionally, the target second TCI state may include one or more second TCI states, for example, including one or two second TCI states. Specifically, for example, it includes one or two combined TCI states, or includes one or two uplink TCI states, or includes one combined TCI state and one uplink TCI state.

[0215] Hereinafter, in combination with Embodiment 2, the determination method of the target second TCI state will be described.

[0216] Example 2: Determination of the target second TCI state

[0217] Example 2-1:

[0218] In some embodiments, the method 200 further includes:

[0219] The terminal determines N second TCI states from the Q second TCI states;

[0220] The target uplink channel or target uplink signal is sent using the target second TCI state among the N second TCI states, where N is a positive integer and N is less than or equal to Q.

[0221] That is, the target second TCI state is determined from the N second TCI states.

[0222] Optionally, this Example 2-1 can be applied to a scenario where there is a DL-only TRP, or the number of TRPs corresponding to uplink transmission is less than the number of TRPs corresponding to downlink transmission, or the number of second TCI states for uplink transmission is less than the number of first TCI states for downlink transmission.

[0223] In this case, it can be understood that the number of TCI states that the network-side device indicates can be used for uplink transmission is greater than the number of TCI states that the terminal needs to use for uplink transmission. Therefore, the terminal can first select N second TCI states from the Q second TCI states and further use the target second TCI state among them for uplink transmission.

[0224] In some embodiments, the terminal determines N second TCI states from the Q second TCI states, including:

[0225] When P is equal to Q, the terminal determines the N second TCI states from the Q second TCI states.

[0226] Optionally, P being equal to Q can include at least one of the following cases:

[0227] The first information indicates Q combined TCI states, and N combined TCI states among the Q combined TCI states can be used for uplink transmission, and the Q combined TCI states can be used for downlink transmission;

[0228] The first information indicates Q uplink TCI states and Q downlink TCI states, the Q uplink TCI states can be used for uplink transmission, and N downlink TCI states among the Q downlink TCI states can be used for downlink transmission.

[0229] For example, when the number of TRPs corresponding to uplink transmission is less than the number of TRPs corresponding to downlink transmission, the network device can still indicate to the terminal the same number of first TCI states for downlink transmission and second TCI states for uplink transmission. For example, it indicates P combined TCI states, or indicates P uplink TCI states and P downlink TCI states. That is, in the embodiments of the present application, the indication method of the network device does not have to be changed. In this way, the number of TCI states that the network device indicates can be used for uplink transmission is greater than the number of TCI states required for the terminal to perform uplink transmission. Therefore, the terminal can first select N second TCI states from the Q second TCI states, which is equivalent to reducing the number of second TCI states available for uplink transmission. In this way, a consistent method can be adopted for subsequent selection of the target first TCI state and the target second TCI state, which can better be compatible with the existing technology.

[0230] In some embodiments, the N second TCI states are indicated by the network device, or can also be selected by the terminal itself. For example, N second TCI states are selected from the Q second TCI states based on a preset rule. By the terminal itself determining the N second TCI states, the signaling overhead of the network device can be saved.

[0231] In some implementation manners, the terminal determines the N second TCI states from the Q second TCI states according to third indication information; wherein, the third indication information is used to indicate at least one of the following:

[0232] The N second TCI states in the Q second TCI states can be used to send a target uplink channel or a target uplink signal;

[0233] Information of the N second TCI states in the Q second TCI states that can be used for the target uplink channel or the target uplink signal.

[0234] Optionally, the third indication information can be sent through at least one of the following signaling:

[0235] RRC signaling, MAC CE, DCI.

[0236] For example, after receiving the first information, the network device can indicate which N second TCI states in the Q second TCI states are used for uplink transmission through the third indication information.

[0237] In some other implementation manners, the terminal determines the N second TCI states from the Q second TCI states according to third information;

[0238] wherein, the third information includes at least one of the following:

[0239] The source reference signals corresponding to the Q second TCI states;

[0240] The preset identifiers of the Q second TCI states;

[0241] The preset arrangement order of the Q second TCI states.

[0242] Optionally, when the third indication information does not indicate which N second TCI states among the Q second TCI states are to be used, the terminal may determine which N second TCI states among the Q second TCI states according to the third information.

[0243] For example, the N second TCI states include the second TCI states among the Q second TCI states whose source reference signals are downlink reference signals, or the N second TCI states do not include the second TCI states whose source reference signals are uplink reference signals. Selecting the TCI states among the Q second TCI states whose source reference signals are uplink reference signals to form the N second TCI states, and then sending the target uplink channel or target uplink signal based on the target second TCI state among the N second TCI states is beneficial to ensuring the transmission performance of the target uplink channel or target uplink signal.

[0244] Optionally, the downlink reference signal may include at least one of the following:

[0245] SSB, CSI-RS, TRS.

[0246] Optionally, the uplink reference signal may include but is not limited to SRS.

[0247] For another example, the terminal may determine N second TCI states among the Q second TCI states according to the identifiers of the Q second TCI states.

[0248] Exemplarily, the N second TCI states include the N second TCI states with the smallest identifiers among the Q second TCI states, or the N second TCI states with the largest identifiers, etc. Selecting the N second TCI states with the smallest or largest identifiers is simple to implement and beneficial to reducing the processing complexity of the terminal.

[0249] For another example, the terminal may determine N second TCI states among the Q second TCI states according to the arrangement order of the Q second TCI states.

[0250] Exemplarily, the N second TCI states include the N second TCI states with the earliest permutation order among the Q second TCI states, or the N second TCI states with the latest permutation order. Selecting the first N or the last N second TCI states from the Q second TCI states is simple to implement and helps reduce the processing complexity of the terminal.

[0251] Optionally, the identifiers of the Q second TCI states are predefined, and the permutation order of the Q second TCI states is predefined.

[0252] Embodiment 2-2:

[0253] The terminal receives the target downlink channel or target downlink signal using the target second TCI state among the Q second TCI states.

[0254] The difference from Embodiment 2-1 is that the terminal can directly determine the target second TCI state among the Q second TCI states without first determining the N second TCI states among the Q second TCI states.

[0255] In some embodiments of the present application, the method further includes:

[0256] The terminal determines the target second TCI state for transmitting the target uplink channel or target uplink signal among the Q second TCI states or the N second TCI states according to the fourth indication information;

[0257] wherein the fourth indication information is used to indicate the target second TCI state for the target uplink channel or target uplink signal among the Q second TCI states or the N second TCI states.

[0258] Optionally, the fourth indication information can be sent through at least one of the following signaling:

[0259] RRC signaling, MAC CE, DCI.

[0260] For example, after sending the first information, the network side device can indicate the target second TCI state among the Q second TCI states through the fourth indication information.

[0261] For another example, after sending the first information and the third indication information, the network side device can indicate the target second TCI state among the N second TCI states through the fourth indication information.

[0262] In some embodiments, the fourth indication information can be obtained from applyIndicatedTCIState, or from the SRS resource set indicator field.

[0263] Optionally, the applyIndicatedTCIState includes at least one of the following:

[0264] RRC configuration parameters of PUCCH resources / resource sets;

[0265] RRC configuration parameters of the PUSCH scheduled by DCI format 0_0;

[0266] RRC configuration parameters of type 1 CG PUSCH;

[0267] RRC configuration parameters of SRS.

[0268] Optionally, the SRS resource set indicator field is included in DCI format 0_1 / 0_2.

[0269] In some embodiments, when N>1, the terminal determines the target second TCI state for transmitting the target uplink channel or target uplink signal from the N second TCI states according to the fourth indication information, where the fourth indication information is used to indicate the target second TCI state for the target uplink channel or target uplink signal among the N second TCI states.

[0270] In some embodiments, when N = 1, the fourth indication information is ignored, or the fourth indication information is determined to be invalid. For example, when there is third indication information and N = 1, the fourth indication information is ignored, or the fourth indication information is determined to be invalid.

[0271] In some embodiments, when Q>1, the terminal determines the target second TCI state for transmitting the target uplink channel or target uplink signal from the N second TCI states according to the fourth indication information, where the fourth indication information is used to indicate the target second TCI state for the target uplink channel or target uplink signal among the Q second TCI states.

[0272] In some embodiments, when Q = 1, the fourth indication information is ignored, or the fourth indication information is determined to be invalid.

[0273] In some embodiments, when the terminal determines N second TCI states from Q second TCI states and N is greater than 1, the fourth indication information indicates the target second TCI state among the N second TCI states for transmitting the target uplink channel or target uplink signal, and the number of bits or states of the fourth indication information is determined by N. For example, if N is 2, the fourth indication information can be 2 bits or three states, that is, indicating to use the first second TCI state, the second second TCI state, or both the first and second second TCI states among the two second TCI states.

[0274] In some embodiments, when the terminal does not perform the operation of determining N second TCI states from Q second TCI states, Q is greater than 1, and the fourth indication information indicates the target second TCI state among the Q second TCI states for transmitting the target uplink channel or target uplink signal, the number of bits or states of the fourth indication information is determined by Q or K + L.

[0275] In some embodiments, the terminal may also determine the target second TCI state from Q second TCI states or N second TCI states according to a preset rule. For example, the target second TCI state is selected according to the source reference signal, identifier, or arrangement order corresponding to the TCI state. For the specific implementation, refer to the related implementation of determining N second TCI states from Q second TCI states. For the sake of brevity, it will not be elaborated here.

[0276] In some embodiments, when the first indication information and the third indication information exist simultaneously, the first indication information and the third indication information may be indicated by one signaling, or may be indicated by different signalings. In some embodiments, when the second indication information and the fourth indication information exist simultaneously, the second indication information and the fourth indication information may be indicated by one signaling, or may be indicated by different signalings.

[0277] It should be understood that in the embodiments of the present application, Embodiment 1-1 may be combined with Embodiment 2-1, or may be combined with Embodiment 2-2. Embodiment 1-2 may be combined with Embodiment 2-1, or may be combined with Embodiment 2-2.

[0278] For example, the terminal may select M first TCI states from P first TCI states, use the target first TCI state among the M first TCI states for downlink transmission, and use the target second TCI state among Q second TCI states for uplink transmission.

[0279] For another example, the terminal may select N second TCI states from Q second TCI states, use the target first TCI state among the P first TCI states for downlink transmission, and use the target second TCI state among the N second TCI states for uplink transmission.

[0280] For yet another example, the terminal may select M first TCI states from P first TCI states and select N first TCI states from Q second TCI states, use the target first TCI state among the M first TCI states for downlink transmission, and use the target second TCI state among the N second TCI states for uplink transmission.

[0281] Next, several cases of the first information for configuring, activating, or indicating the TCI state will be combined to illustrate the specific implementation of the TCI state used by the terminal for uplink and downlink transmission.

[0282] Case 1: The first information is used to configure, activate, or indicate P combined TCI states.

[0283] In some embodiments, the terminal may determine M combined TCI states from the P combined TCI states and use the target combined TCI state among the M combined TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal. Further optionally, the terminal may use the target combined TCI state among the P combined TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal.

[0284] This embodiment may be applicable to a scenario where there is a UL-only TRP, or the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission, or the number of the second TCI states used for uplink transmission is greater than the number of the first TCI states used for downlink transmission.

[0285] In some embodiments, the terminal may determine N combined TCI states from the P combined TCI states and use the target combined TCI state among the N combined TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal. Further optionally, the terminal may use the target combined TCI state among the P combined TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal.

[0286] This embodiment may be applicable to a scenario where there is a DL-only TRP, or the number of TRPs corresponding to uplink transmission is less than the number of TRPs corresponding to downlink transmission, or the number of the second TCI states used for uplink transmission is less than the number of the first TCI states used for downlink transmission.

[0287] It should be understood that the target combined TCI state used by the terminal for downlink transmission and the target combined TCI state used by the terminal for uplink transmission may be the same, or they may also be different.

[0288] It should be understood that for the specific implementation of the terminal to determine M combined TCI states or N combined TCI states among P combined TCI states, refer to the relevant descriptions in Embodiment 1-1 or 2-1. For the sake of brevity, it will not be elaborated here.

[0289] In some embodiments, the terminal may, according to the second indication information, determine the target combined TCI state for downlink transmission among P combined TCI states or M combined TCI states. For the specific implementation, refer to the relevant descriptions in Embodiment 1, which will not be elaborated here.

[0290] In some embodiments, the terminal may, according to the fourth indication information, determine the target combined TCI state for uplink transmission among P combined TCI states or N combined TCI states. For the specific implementation, refer to the relevant descriptions in Embodiment 2, which will not be elaborated here.

[0291] Case 2: The first information is used to configure, activate, or indicate P uplink TCI states and P downlink TCI states.

[0292] In some embodiments, the terminal may determine M downlink TCI states among P downlink TCI states and use the target downlink TCI state among the M downlink TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal. Further optionally, the terminal may use the target uplink TCI state among the P uplink TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal.

[0293] This embodiment may be applicable to a scenario where there is a UL-only TRP, or the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission, or the number of the second TCI states used for uplink transmission is greater than the number of the first TCI states used for downlink transmission.

[0294] In some embodiments, the terminal may determine N uplink TCI states among P uplink TCI states and use the target uplink TCI state among the N uplink TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal. Further optionally, the terminal may use the target downlink TCI state among the P downlink TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal.

[0295] This embodiment can be applied to scenarios where there is a DL-only TRP, or the number of TRPs corresponding to uplink transmission is less than the number of TRPs corresponding to downlink transmission, or the number of the second TCI states for uplink transmission is less than the number of the first TCI states for downlink transmission.

[0296] It should be understood that the specific implementation of the terminal determining M downlink TCI states from P downlink TCI states and determining N uplink TCI states from P uplink TCI states refers to the relevant descriptions in Embodiment 1-1 or 2-1. For the sake of brevity, it will not be elaborated here.

[0297] In some embodiments, the terminal can determine a target downlink TCI state for downlink transmission from P downlink TCI states or M downlink TCI states according to the second indication information. The specific implementation refers to the relevant descriptions in Embodiment 1 and will not be elaborated here.

[0298] In some embodiments, the terminal can determine a target uplink TCI state for uplink transmission from P uplink TCI states or N uplink TCI states according to the fourth indication information. The specific implementation refers to the relevant descriptions in Embodiment 2 and will not be elaborated here.

[0299] Case 3: The first information is used to configure, activate or indicate A combined TCI states and B downlink TCI states, where A and B are positive integers.

[0300] In some embodiments, the terminal can determine M TCI states from A combined TCI states and B downlink TCI states, and use the target TCI state among the M TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal. Further optionally, the terminal can use the target combined TCI state among the A combined TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal.

[0301] This embodiment can be applied to scenarios where there is a DL-only TRP, or the number of TRPs corresponding to uplink transmission is less than the number of TRPs corresponding to downlink transmission, or the number of the second TCI states for uplink transmission is less than the number of the first TCI states for downlink transmission.

[0302] It should be understood that the specific implementation of the terminal determining M TCI states from A combined TCI states and B downlink TCI states refers to the relevant descriptions in Embodiment 1-1. For the sake of brevity, it will not be elaborated here.

[0303] In some embodiments, the terminal may determine, according to the second indication information, a target TCI state for downlink transmission from among A combined TCI states and B downlink TCI states or M TCI states. For the specific implementation, refer to the relevant description in Embodiment 1, which will not be elaborated here.

[0304] Case 4: The first information is used to configure, activate, or indicate C combined TCI states and D uplink TCI states, where C and D are positive integers.

[0305] In some embodiments, the terminal may determine N TCI states from among C combined TCI states and D uplink TCI states, and use the target TCI state among the N TCI states for uplink transmission, such as transmitting a target uplink channel or a target uplink signal. Further optionally, the terminal may use the target combined TCI state among the C combined TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal.

[0306] This embodiment may be applicable to a scenario where there is a UL-only TRP, or the number of TRPs corresponding to uplink transmission is greater than the number of TRPs corresponding to downlink transmission, or the number of the second TCI states for uplink transmission is greater than the number of the first TCI states for downlink transmission.

[0307] It should be understood that for the specific implementation of the terminal to determine N TCI states from among C combined TCI states and D uplink TCI states, refer to the relevant description in Embodiment 2-1. For the sake of brevity, it will not be elaborated here.

[0308] In some embodiments, the terminal may determine, according to the fourth indication information, a target TCI state for uplink transmission from among C combined TCI states and D uplink TCI states or N TCI states. For the specific implementation, refer to the relevant description in Embodiment 2, which will not be elaborated here.

[0309] In some embodiments of the present application, the method 200 further includes:

[0310] The terminal receives a first Medium Access Control Control Element (MAC CE), and the first MAC CE is used to activate TCI states including the P first TCI states and the Q second TCI states.

[0311] In some embodiments, the first MAC CE includes at least one code point, where one code point corresponds to the entire set or a subset of the P first TCI states and the Q second TCI states.

[0312] In some embodiments, when the one code point corresponds to a subset of the P first TCI states and the Q second TCI states, it means that some of the P first TCI states and the Q second TCI states that are being used are updated to the TCI states in the subset, and the other TCI states among the P first TCI states and the Q second TCI states that are being used remain unchanged.

[0313] In some embodiments, the TCI states activated by the first MAC CE include at least one of the following at least one case:

[0314] P combined TCI states;

[0315] P uplink TCI states and P downlink TCI states;

[0316] A combined TCI states and B uplink TCI states, where A and B are positive integers;

[0317] C combined TCI states and D downlink TCI states, where C and D are positive integers.

[0318] In some specific embodiments, in the combined TCI mode, the TCI state information corresponding to one code point of the first MAC CE is shown in Table 1, where one code point of the first MAC CE corresponds to 2 combined TCI states, that is, P = 2.

[0319] Optionally, the first MAC CE includes a first indication field for indicating the number of TCI states corresponding to one code point, for example, corresponding to one TCI state or multiple TCI states.

[0320] Optionally, the first MAC CE includes a second indication field (such as the D / U / J field) for indicating the type of the TCI state, such as an uplink TCI state, a downlink TCI state, or a combined TCI state. Then one code point can correspond to one uplink TCI state and one downlink TCI state, or, correspond to one uplink TCI state, or, correspond to one downlink or combined TCI state, or, correspond to one uplink TCI state and one combined TCI state, or, correspond to one downlink TCI state and one combined TCI state. Where "J" indicates that the TCI state is a joint TCI state, that is, the first MAC CE can indicate two combined TCI states, namely combined TCI state 1 and combined TCI state 2.

[0321] Table 1

[0322] J TCI state ID 1 J TCI state ID 2

[0323] Further, which combined TCI state is used to receive the target downlink channel or target downlink signal can be determined according to the indication of the network - side device, or alternatively, it can also be selected by the terminal.

[0324] For example, if the first indication information indicates that the first TCI state can be used to receive the target downlink channel or target downlink signal, then the joint TCI state corresponding to TCI state ID 1 can be used to receive the target downlink channel or target downlink signal; while the joint TCI state corresponding to TCI state ID 1 and TCI state ID 2 can be used for the target uplink channel or target uplink signal.

[0325] Also for example, if the third indication information indicates that the first TCI state can be used to transmit the target uplink channel or target uplink signal, then the joint TCI state corresponding to TCI state ID 1 can be used to transmit the target uplink channel or target uplink signal; while the joint TCI state corresponding to TCI state ID 1 and TCI state ID 2 can be used for the target downlink channel or target downlink signal.

[0326] In some other specific embodiments, in the independent TCI mode, the TCI state information corresponding to a code point of the first MAC CE is shown in Table 2. Among them, a code point of the first MAC CE corresponds to 2 uplink TCI states and 2 downlink TCI states, that is, P = Q = 2.

[0327] Optionally, the first MAC CE includes a first indication field for indicating the number of TCI states corresponding to a code point, such as corresponding to one TCI state or multiple TCI states.

[0328] Optionally, the first MAC CE includes a second indication field (such as the D / U / J field) for indicating the type of TCI state, such as an uplink TCI state, a downlink TCI state, or a combined TCI state. Then a code point can correspond to an uplink TCI state and a downlink TCI state, or, correspond to an uplink TCI state, or, correspond to a downlink or combined TCI state, or, correspond to an uplink TCI state and a combined TCI state, or, correspond to a downlink TCI state and a combined TCI state. Where "D" indicates that this TCI state is a downlink TCI state.

[0329] "U" indicates that the TCI state is an uplink TCI state. That is, the first MAC CE can indicate two downlink TCI states, namely downlink TCI state 1 and downlink TCI state 2, and two uplink TCI states, namely uplink TCI state 3 and uplink TCI state 4.

[0330] Table 2

[0331] D TCI state ID 1 D TCI state ID 2 U TCI state ID 3 U TCI state ID 4

[0332] Furthermore, which uplink TCI state and / or downlink TCI state to use can be determined according to the indication of the network side device, or alternatively, it can also be selected by the terminal.

[0333] For example, if the first indication information indicates that the first DL TCI state can be used to receive the target downlink channel or target downlink signal, then the DL TCI state corresponding to TCI state ID 1 can be used to receive the target downlink channel or target downlink signal; optionally, the DL TCI states corresponding to TCI state ID 3 and TCI state ID 4 can be used for the target uplink channel or target uplink signal.

[0334] Another example, if the third indication information indicates that the first UL TCI state can be used to transmit the target uplink channel or target uplink signal, then the UL TCI state corresponding to TCI state ID 3 can be used to transmit the target uplink channel or target uplink signal; optionally, the DL TCI states corresponding to TCI state ID 1 and TCI state ID 2 can be used for the target downlink channel or target downlink signal.

[0335] In some other specific embodiments, in the independent TCI mode, the TCI state information corresponding to one code point of the first MAC CE is shown in Table 3, where one code point of the first MAC CE corresponds to 2 uplink TCI states and 1 downlink TCI state, that is, P = 2, Q = 1.

[0336] Optionally, the first MAC CE includes a first indication field for indicating the number of TCI states corresponding to one code point, such as corresponding to one TCI state or multiple TCI states.

[0337] Optionally, the first MAC CE includes a second indication field (such as a D / U / J field) for indicating the type of TCI state, such as an uplink TCI state, a downlink TCI state, or a combined TCI state. Then, one code point can correspond to an uplink TCI state and a downlink TCI state, or, correspond to an uplink TCI state, or, correspond to a downlink or combined TCI state, or, correspond to an uplink TCI state and a combined TCI state, or, correspond to a downlink TCI state and a combined TCI state. Wherein "D" indicates that the TCI state is a downlink TCI state,

[0338] "U" indicates that the TCI state is an uplink TCI state, that is, the first MAC CE can indicate a downlink TCI state, namely downlink TCI state 1, and two uplink TCI states, namely uplink TCI state 2 and uplink TCI state 3.

[0339] Table 3

[0340] D TCI state ID 1 U TCI state ID 2 U TCI state ID 3

[0341] Furthermore, which uplink TCI state to use can be determined according to the indication of the network-side device, or, it can also be selected by the terminal.

[0342] For example, if the third indication information indicates that the first UL TCI state can be used to transmit the target uplink channel or the target uplink signal, then the UL TCI state corresponding to TCI state ID 2 can be used to transmit the target uplink channel or the target uplink signal, and the DL TCI state corresponding to TCI state ID 1 can be used for the target downlink channel or the target downlink signal.

[0343] In some further specific embodiments, in the hybrid TCI mode, the TCI state information corresponding to one code point of the first MAC CE is shown in Table 4, where one code point of the first MAC CE corresponds to 1 combined TCI state and 1 uplink TCI state.

[0344] Optionally, the first MAC CE includes a first indication field for indicating the number of TCI states corresponding to one code point, such as corresponding to one TCI state or multiple TCI states.

[0345] Optionally, the first MAC CE includes a second indication field (e.g., D / U / J field) for indicating the type of TCI state, such as an uplink TCI state, a downlink TCI state, or a combined TCI state. Then, one code point can correspond to an uplink TCI state and a downlink TCI state, or, correspond to an uplink TCI state, or, correspond to a downlink or combined TCI state, or, correspond to an uplink TCI state and a combined TCI state, or, correspond to a downlink TCI state and a combined TCI state. Wherein, "J" is used to indicate that the TCI state is a combined TCI state,

[0346] "U" is used to indicate that the TCI state is an uplink TCI state, that is, the first MAC CE can indicate a combined TCI state, namely combined TCI state 1, and one uplink TCI state, namely uplink TCI state 2.

[0347] Table 4

[0348] J TCI state ID 1 U TCI state ID 2

[0349] Furthermore, which TCI state is used for uplink transmission can be determined according to the indication of the network side device, or, it can also be selected by the terminal.

[0350] For example, if the first indication information indicates that the second TCI state can be used to send the target uplink channel or the target uplink signal, then the UL TCI state corresponding to TCI state ID 2 can be used to send the target uplink channel or the target uplink signal, and the combined TCI state corresponding to TCI state ID 1 can be used for the target downlink channel or the target downlink signal.

[0351] In summary, in the embodiments of the present application, the network side device can configure, activate or indicate P first TCI states for downlink transmission and Q second TCI states for uplink transmission to the terminal, where P can be greater than Q, or, P is less than Q, or, P is equal to Q. That is, the network side device can configure, activate or indicate to the terminal TCI states with the same number of uplink and downlink, or, TCI states with different numbers of uplink and downlink, so as to meet the transmission requirements of various types of TRP deployment scenarios.

[0352] As described above in conjunction with Figure 4 the method embodiments of the present application are described in detail. Below in conjunction with Figures 5 to 9 the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0353] The wireless communication method provided by an embodiment of this application may be executed by a wireless communication device. In the embodiments of this application, taking the wireless communication device executing the wireless communication method as an example, the wireless communication device provided by the embodiments of this application is described.

[0354] Figure 5 Fig. 4 shows a schematic block diagram of a wireless communication device 500 according to an embodiment of this application. As Figure 5 shown, the device 500 includes:

[0355] A receiving unit 510, configured to receive first information, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0356] where the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0357] the Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0358] In some embodiments, when P = Q, and the P first TCI states and the Q second TCI states are both combined TCI states, the P first TCI states and the Q second TCI states correspond one by one to the same combined TCI state.

[0359] In some embodiments, the device 500 further includes:

[0360] A processing unit, configured to determine M first TCI states from the P first TCI states, and use a target first TCI state among the M first TCI states to receive the target downlink channel or the target downlink signal, where M is a positive integer and M is less than or equal to P.

[0361] In some embodiments, the processing unit is specifically configured to:

[0362] When P is equal to Q, determine the M first TCI states from the P first TCI states.

[0363] In some embodiments, the processing unit is specifically configured to:

[0364] Determine the M first TCI states from the P first TCI states according to first indication information;

[0365] Wherein, the first indication information is used to indicate at least one of the following:

[0366] The target downlink channel or target downlink signal can be received by using the M first TCI states among the P first TCI states;

[0367] Information on the M first TCI states among the P first TCI states that can be used for the target downlink channel or target downlink signal.

[0368] In some embodiments, the processing unit is specifically configured to:

[0369] Determine the M first TCI states among the P first TCI states according to the second information;

[0370] Wherein, the second information includes at least one of the following:

[0371] The source reference signal corresponding to the P first TCI states;

[0372] The preset identifier of the P first TCI states;

[0373] The preset arrangement order of the P first TCI states.

[0374] In some embodiments, the M first TCI states include the first TCI states among the P first TCI states whose source reference signal is a downlink reference signal, or the M first TCI states do not include the first TCI states whose source reference signal is an uplink reference signal.

[0375] In some embodiments, the apparatus 500 further includes:

[0376] A processing unit, configured to determine the target first TCI state for receiving the target downlink channel or target downlink signal among the P first TCI states or M first TCI states according to the second indication information;

[0377] Wherein, the second indication information is used to indicate the target first TCI state among the P first TCI states or the M first TCI states that is used for the target downlink channel or target downlink signal.

[0378] In some embodiments, the processing unit is further configured to:

[0379] In the case where M is equal to 1, ignore the second indication information, or determine that the second indication information is invalid.

[0380] In some embodiments, when M is greater than 1 and the second indication information indicates the target first TCI state among the M first TCI states for the target downlink channel or target downlink signal, the number of bits or number of states of the second indication information is determined by M; or

[0381] When P is greater than 1 and the second indication information indicates the target first TCI state among the P first TCI states for the target downlink channel or target downlink signal, the number of bits or number of states of the second indication information is determined by P or X + Y.

[0382] In some embodiments, the apparatus 500 further includes:

[0383] a sending unit, configured to send the target uplink channel or target uplink signal by using the target second TCI state among the Q second TCI states.

[0384] In some embodiments, the apparatus further includes:

[0385] a processing unit, configured to determine N second TCI states among the Q second TCI states, and send the target uplink channel or target uplink signal by using the target second TCI state among the N second TCI states, where N is a positive integer and N is less than or equal to Q.

[0386] In some embodiments, the processing unit is further configured to:

[0387] when P is equal to Q, determine the N second TCI states among the Q second TCI states.

[0388] In some embodiments, the processing unit is further configured to:

[0389] determine the N second TCI states among the Q second TCI states according to third indication information;

[0390] wherein the third indication information is used to indicate at least one of the following:

[0391] the target uplink channel or target uplink signal can be sent by using the N second TCI states among the Q second TCI states;

[0392] information about the N second TCI states among the Q second TCI states that can be used for the target uplink channel or target uplink signal.

[0393] In some embodiments, the processing unit is further configured to:

[0394] determine the N second TCI states among the Q second TCI states according to third information;

[0395] Wherein, the third information includes at least one of the following:

[0396] The source reference signals corresponding to the Q second TCI states;

[0397] The preset identifiers of the Q second TCI states;

[0398] The preset arrangement order of the Q second TCI states.

[0399] In some embodiments, the N second TCI states include the second TCI states among the Q second TCI states whose source reference signals are uplink reference signals, or the N second TCI states do not include the second TCI states whose source reference signals are downlink reference signals.

[0400] In some embodiments, the apparatus 500 further includes:

[0401] A processing unit, configured to determine, according to the fourth indication information, the target second TCI state for transmitting the target uplink channel or the target uplink signal among the Q second TCI states or the N second TCI states;

[0402] Wherein, the fourth indication information is used to indicate the target second TCI state for the target uplink channel or the target uplink signal among the Q second TCI states or the N second TCI states.

[0403] In some embodiments, the processing unit is further configured to:

[0404] When N is equal to 1, ignore the fourth indication information, or determine that the fourth indication information is invalid.

[0405] In some embodiments, when N is greater than 1, and the fourth indication information is used to indicate the target second TCI state for the target uplink channel or the target uplink signal among the N second TCI states, the number of bits or the number of states of the fourth indication information is determined by N; or

[0406] When Q is greater than 1, and the fourth indication information indicates the target second TCI state for the target uplink channel or the target uplink signal among the Q second TCI states, the number of bits or the number of states of the fourth indication information is determined by Q or K + L.

[0407] In some embodiments, the receiving unit 510 is further configured to:

[0408] Receive the target downlink channel or the target downlink signal using the target first TCI state among the P first TCI states.

[0409] In some embodiments, the source reference signal of the Y downlink TCI states among the P first TCI states is a downlink reference signal; or

[0410] the source reference signal of the L uplink TCI states among the Q second TCI states is an uplink reference signal.

[0411] Optionally, in some embodiments, the above receiving unit and sending unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-chip, and the processing unit may be one or more processors.

[0412] It should be understood that the apparatus 500 according to the embodiments of the present application may correspond to the terminal in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the apparatus 500 are respectively for implementing Figure 4 the corresponding processes of the terminal in the method embodiments shown, and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0413] Figure 6 FIG. shows a schematic block diagram of a wireless communication apparatus 600 according to an embodiment of the present application. As Figure 6 shown, the apparatus 600 includes:

[0414] A sending unit 610, configured to send first information to a terminal, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for sending a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero;

[0415] wherein, the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0416] the Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0417] In some embodiments, when P = Q, and the P first TCI states and the Q second TCI states are both combined TCI states, the P first TCI states and the Q second TCI states correspond to the same combined TCI state one by one.

[0418] In some embodiments, the sending unit 610 is further configured to:

[0419] Send a first indication message to the terminal, where the first indication message is used to indicate at least one of the following:

[0420] It is possible to receive the target downlink channel or target downlink signal using M of the P first TCI states;

[0421] Information on the M first TCI states among the P first TCI states that can be used for the target downlink channel or target downlink signal.

[0422] In some embodiments, the sending unit 610 is further configured to:

[0423] Send a second indication message to the terminal, where the second indication message is used to indicate the target first TCI state among the P first TCI states or the M first TCI states that is used for the target downlink channel or target downlink signal, the M first TCI states are included in the P first TCI states, where M is a positive integer and M is less than or equal to P.

[0424] In some embodiments, the sending unit 610 is further configured to:

[0425] Send a third indication message to the terminal, where the third indication message is used to indicate at least one of the following:

[0426] It is possible to send the target uplink channel or target uplink signal using the N second TCI states among the Q second TCI states;

[0427] Information on the N second TCI states among the Q second TCI states that can be used for the target uplink channel or target uplink signal.

[0428] In some embodiments, the sending unit 610 is further configured to:

[0429] Send a fourth indication message to the terminal, where the fourth indication message is used to indicate the target second TCI state among the Q second TCI states or the N second TCI states that is used for the target uplink channel or target uplink signal, where the N second TCI states are included in the Q second TCI states, where N is a positive integer and N is less than or equal to Q.

[0430] In some embodiments, the apparatus 600 further includes:

[0431] A receiving unit, configured to receive the target uplink channel or target uplink signal using the target second TCI state.

[0432] In some embodiments, the sending unit is further configured to:

[0433] Transmit the target downlink channel or target downlink signal according to the target first TCI state.

[0434] Optionally, in some embodiments, the above-mentioned transmitting unit and receiving unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-chip.

[0435] It should be understood that the signal forwarding device 600 according to the embodiments of the present application may correspond to the network device in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the device 600 are respectively for implementing Figure 4 the corresponding processes of the network-side device in the method embodiments shown in, and achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0436] In some embodiments, the device 500 and device 600 in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0437] As Figure 7 shown, the embodiments of the present application further provide a communication device 700, including a processor 701 and a memory 702. A program or instruction that can run on the processor 701 is stored on the memory 702. For example, when the communication device 700 is a terminal, when the program or instruction is executed by the processor 701, it implements the steps executed by the terminal in the above-mentioned wireless communication method embodiments and can achieve the same technical effects. When the communication device 700 is a network-side device, when the program or instruction is executed by the processor 701, it implements each step executed by the network-side device in the above-mentioned wireless communication method embodiments and can achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0438] The embodiments of the present application further provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement as Figure 4 shown in the steps of the method embodiments. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiments. Each implementation process and implementation manner of the above method embodiments can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 8 is a schematic diagram of the hardware structure of a terminal for implementing the embodiments of the present application.

[0439] The terminal 800 includes, but is not limited to, at least some components such as a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810.

[0440] Those skilled in the art can understand that the terminal 800 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 810 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0441] It should be understood that in the embodiments of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042. The graphics processing unit 8041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. The other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0442] In the embodiments of the present application, after the radio frequency unit 801 receives downlink data from a network-side device, it can be transmitted to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network-side device. Generally, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0443] The memory 809 can be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 809 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 809 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0444] The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 810.

[0445] The radio frequency unit 810 is configured to receive first information, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q, and where P and Q are integers greater than or equal to zero;

[0446] Among them, the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P;

[0447] Among them, the Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

[0448] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0449] The embodiment of the present application further provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement as Figure 4 shown in the steps of the method embodiment. This network-side device embodiment corresponds to the above network-side device method embodiment. The various implementation processes and implementation manners of the above method embodiment can all be applied to this network-side device embodiment and can achieve the same technical effects.

[0450] Specifically, the embodiment of the present application further provides a network-side device. As Figure 9 shown, the network-side device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94, and a memory 95. The antenna 91 is connected to the radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92. After processing the received information, the radio frequency device 92 sends it out through the antenna 91.

[0451] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 93, and the baseband device 93 includes a baseband processor.

[0452] The baseband device 93 may include, for example, at least one baseband board, and multiple chips are provided on the baseband board. As Figure 9 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 through a bus interface to call the program in the memory 95 and execute the operations of the network-side device shown in the above method embodiment.

[0453] The network-side device may further include a network interface 96, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0454] Specifically, the network-side device 900 in the embodiments of the present application further includes: instructions or programs stored in the memory 95 and executable on the processor 94. The processor 94 calls the instructions or programs in the memory 95 to execute Figure 6 the methods executed by the modules shown in the figure, and achieves the same technical effects. To avoid repetition, they will not be elaborated here.

[0455] The embodiments of the present application further provide a readable storage medium, on which programs or instructions are stored. When the programs or instructions are executed by a processor, the various processes of the above-mentioned embodiments of the wireless communication method are implemented, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0456] Wherein, the processor is the processor in the communication device, terminal or network-side device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0457] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-mentioned embodiments of the wireless communication method, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0458] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0459] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned embodiments of the wireless communication method, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0460] The embodiments of the present application further provide a communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the wireless communication method as described above, and the network-side device can be used to execute the steps of the wireless communication method as described above.

[0461] It should be noted that, in this document, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device that includes such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0462] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus the necessary general hardware platforms, and of course, they can also be implemented by hardware. The computer software products are stored in storage media (such as ROM, RAM, magnetic disks, optical disks, etc.) and include several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0463] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. All these embodiments fall within the protection scope of the present application.

Claims

1. A wireless communication method, characterized in that, Including: The terminal receives first information, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero; Among them, the P first TCI states include X joint TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P; The Q second TCI states include K joint TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

2. The method according to claim 1, wherein The method further includes: The terminal determines M first TCI states among the P first TCI states; Receiving the target downlink channel or the target downlink signal using a target first TCI state among the M first TCI states, where M is a positive integer and M is less than or equal to P.

3. The method according to claim 2, wherein The terminal determining M first TCI states among the P first TCI states includes: When P is equal to Q, the terminal determines the M first TCI states among the P first TCI states.

4. The method according to claim 2 or 3, characterized in that, The method further includes: The terminal determines the M first TCI states among the P first TCI states according to first indication information; Among them, the first indication information is used to indicate at least one of the following: The M first TCI states among the P first TCI states can be used to receive the target downlink channel or the target downlink signal; Information on the M first TCI states among the P first TCI states that can be used for the target downlink channel or the target downlink signal.

5. The method according to claim 2 or 3, characterized in that The method further includes: The terminal determines the M first TCI states among the P first TCI states according to second information; Among them, the second information includes at least one of the following: Source reference signals corresponding to the P first TCI states; Preset identifiers of the P first TCI states; Preset arrangement orders of the P first TCI states.

6. The method according to any one of claims 2-5, characterized in that The M first TCI states include first TCI states among the P first TCI states whose source reference signal is a downlink reference signal, or the M first TCI states do not include first TCI states whose source reference signal is an uplink reference signal.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: The terminal determines the target first TCI state for receiving the target downlink channel or the target downlink signal among the P first TCI states or the M first TCI states according to second indication information; Among them, the second indication information is used to indicate the target first TCI state among the P first TCI states or the M first TCI states for the target downlink channel or the target downlink signal.

8. The method according to claim 7, wherein The method further includes: When M is equal to 1, ignore the second indication information, or determine that the second indication information is invalid.

9. The method according to claim 7, wherein: when M is greater than 1 and the second indication information indicates the target first TCI state among the M first TCI states for the target downlink channel or target downlink signal, the number of bits or the number of states of the second indication information is determined by M; or when P is greater than 1 and the second indication information indicates the target first TCI state among the P first TCI states for the target downlink channel or target downlink signal, the number of bits or the number of states of the second indication information is determined by P or X + Y.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: the terminal uses the target second TCI state among the Q second TCI states to transmit the target uplink channel or target uplink signal.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes: the terminal determines N second TCI states among the Q second TCI states; uses the target second TCI state among the N second TCI states to transmit the target uplink channel or target uplink signal, where N is a positive integer and N is less than or equal to Q.

12. The method according to claim 11, wherein The terminal determines N second TCI states among the Q second TCI states, including: when P is equal to Q, the terminal determines the N second TCI states among the Q second TCI states.

13. The method according to claim 11 or 12, characterized in that, The method further includes: the terminal determines the N second TCI states among the Q second TCI states according to third indication information; wherein the third indication information is used to indicate at least one of the following: it is possible to use the N second TCI states among the Q second TCI states to transmit the target uplink channel or target uplink signal; information on the N second TCI states among the Q second TCI states that can be used for the target uplink channel or target uplink signal.

14. The method according to claim 11 or 12, characterized in that, The method further includes: the terminal determines the N second TCI states among the Q second TCI states according to third information; wherein the third information includes at least one of the following: source reference signals corresponding to the Q second TCI states; preset identifiers of the Q second TCI states; preset arrangement orders of the Q second TCI states.

15. The method according to any one of claims 11-14, wherein: the N second TCI states include the second TCI states among the Q second TCI states whose source reference signal is an uplink reference signal, or the N second TCI states do not include the second TCI states whose source reference signal is a downlink reference signal.

16. The method according to any one of claims 1-15, characterized in that, The method further includes: the terminal determines the target second TCI state for transmitting the target uplink channel or target uplink signal among the Q second TCI states or N second TCI states according to fourth indication information; wherein the fourth indication information is used to indicate the target second TCI state for the target uplink channel or target uplink signal among the Q second TCI states or the N second TCI states.

17. The method according to claim 16, wherein The method further includes: When N is equal to 1, the fourth indication information is ignored, or it is determined that the fourth indication information is invalid.

18. The method according to claim 16, wherein When N is greater than 1 and the fourth indication information is used to indicate the target second TCI state among the N second TCI states for the target uplink channel or target uplink signal, the number of bits or states of the fourth indication information is determined by N; or When Q is greater than 1 and the fourth indication information indicates the target second TCI state among the Q second TCI states for the target uplink channel or target uplink signal, the number of bits or states of the fourth indication information is determined by Q or K + L.

19. The method according to any one of claims 1-18, characterized in that, The method further includes: The terminal receives the target downlink channel or target downlink signal using the target first TCI state among the P first TCI states.

20. The method according to any one of claims 1-19, wherein The source reference signal of the Y downlink TCI states among the P first TCI states is a downlink reference signal; or The source reference signal of the L uplink TCI states among the Q second TCI states is an uplink reference signal.

21. The method according to any one of claims 1-20, when P = Q and both the P first TCI states and the Q second TCI states are joint TCI states, the P first TCI states and the Q second TCI states correspond one by one to the same joint TCI state.

22. A wireless communication method, characterized in that, Including: The network device sends first information to the terminal, and the first information is used to configure, activate or indicate P first TCI states for receiving the target downlink channel or target downlink signal and Q second TCI states for sending the target uplink channel or target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero; Wherein, the P first TCI states include X joint TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P; The Q second TCI states include K joint TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

23. The method according to claim 22, characterized in that, The method further includes: The network device sends first indication information to the terminal, and the first indication information is used to indicate at least one of the following: The target downlink channel or target downlink signal can be received using M first TCI states among the P first TCI states; Information of the M first TCI states among the P first TCI states that can be used for the target downlink channel or target downlink signal.

24. The method according to claim 22 or 23, characterized in that, The method further includes: The network device sends second indication information to the terminal, and the second indication information is used to indicate the target first TCI state among the P first TCI states or M first TCI states for the target downlink channel or target downlink signal, and the M first TCI states are included in the P first TCI states, where M is a positive integer and M is less than or equal to P.

25. The method according to any one of claims 22-24, characterized in that, The method further includes: The network device sends third indication information to the terminal, and the third indication information is used to indicate at least one of the following: N second TCI states among the Q second TCI states can be used to send the target uplink channel or the target uplink signal; Information on the N second TCI states among the Q second TCI states that can be used for the target uplink channel or the target uplink signal.

26. The method according to any one of claims 22-25, characterized in that, The method further includes: The network device sends fourth indication information to the terminal, and the fourth indication information is used to indicate the target second TCI state among the Q second TCI states or the N second TCI states that is used for the target uplink channel or the target uplink signal, where the N second TCI states are included in the Q second TCI states, N is a positive integer, and N is less than or equal to Q.

27. According to the method described in any one of claims 1-26, when P = Q, and both the P first TCI states and the Q second TCI states are joint TCI states, the P first TCI states and the Q second TCI states correspond one-to-one to the same joint TCI state.

28. A wireless communication device, characterized in that, Including: A receiving unit, configured to receive first information, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for sending a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero; Wherein, the P first TCI states include X joint TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P; The Q second TCI states include K joint TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

29. The device according to claim 28, wherein The apparatus further includes: A processing unit, configured to determine M first TCI states among the P first TCI states; The receiving unit is further configured to: receive the target downlink channel or the target downlink signal by using the target first TCI state among the M first TCI states, where M is a positive integer, and M is less than or equal to P.

30. The device according to claim 28 or 29, characterized in that, The apparatus further includes: A sending unit, configured to send the target uplink channel or the target uplink signal by using the target second TCI state among the Q second TCI states.

31. The device according to any one of claims 28 - 30, characterized in that, The apparatus further includes: A processing unit, configured to determine N second TCI states among the Q second TCI states; The sending unit is configured to: send the target uplink channel or the target uplink signal by using the target second TCI state among the N second TCI states, where N is a positive integer, and N is less than or equal to Q.

32. The device according to claim 28, 29 or 31, characterized in that, The receiving unit is further configured to: Receive the target downlink channel or the target downlink signal by using the target first TCI state among the P first TCI states.

33. A wireless communication device, characterized in that, Including: A sending unit, configured to send first information to a terminal, where the first information is used to configure, activate, or indicate P first TCI states for receiving a target downlink channel or a target downlink signal and Q second TCI states for transmitting a target uplink channel or a target uplink signal, where P is greater than Q, P is less than Q, or P is equal to Q; P and Q are integers greater than or equal to zero; wherein the P first TCI states include X combined TCI states and Y downlink TCI states, where X and Y are integers greater than or equal to zero, and X + Y = P; the Q second TCI states include K combined TCI states and L uplink TCI states, where K and L are integers greater than or equal to zero, and K + L = Q.

34. The apparatus according to claim 33, wherein The sending unit is further configured to: send at least one of first indication information, second indication information, third indication information, and fourth indication information to the terminal: wherein the first indication information is used to indicate at least one of the following: M first TCI states among the P first TCI states can be used to receive the target downlink channel or the target downlink signal; information on the M first TCI states among the P first TCI states that can be used for the target downlink channel or the target downlink signal; wherein the second indication information is used to indicate a target first TCI state among the P first TCI states or the M first TCI states that is used for the target downlink channel or the target downlink signal, the M first TCI states are included in the P first TCI states, where M is a positive integer and M is less than or equal to P; wherein the third indication information is used to indicate at least one of the following: N second TCI states among the Q second TCI states can be used to transmit the target uplink channel or the target uplink signal; information on the N second TCI states among the Q second TCI states that can be used for the target uplink channel or the target uplink signal; wherein the fourth indication information is used to indicate a target second TCI state among the Q second TCI states or the N second TCI states that is used for the target uplink channel or the target uplink signal, the N second TCI states are included in the Q second TCI states, where N is a positive integer and N is less than or equal to Q.

35. A communication device, characterized in that, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where when the computer program is executed by the processor, it implements the steps in the method according to any one of claims 1 to 21, or the steps in the method according to any one of claims 22 to 27.

36. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, it implements the wireless communication method according to any one of claims 1 - 21, or implements the steps of the wireless communication method according to any one of claims 22 to 27.

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