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

Abstract

The present application belongs to the field of communications. Disclosed are a wireless communication method and apparatus, and a device and a readable storage medium. The method in the embodiments of the present application comprises: a terminal receiving first information, the first information being used for configuring, activating or indicating 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, wherein 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; the P first TCI states comprise X joint TCI states and Y downlink TCI states, X and Y being integers greater than or equal to zero, and X+Y=P; and the Q second TCI states comprise K joint TCI states and L uplink TCI states, K and L being integers greater than or equal to zero, and K+L=Q.

Description

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

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 29, 2023, with application number 202311874238.2 and invention name “Wireless Communication Method, Apparatus, Equipment and Readable Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a wireless communication method, apparatus, device, and readable storage medium. Background Art

[0004] The network-side device can indicate the corresponding transmission configuration indication (TCI) status for the target channel or signal. The TCI status includes quasi-co-located (QCL) information, path loss reference signal (PL-RS), uplink power control information, etc., so that the terminal can use the TCI status to receive or send the target channel or signal.

[0005] In some scenarios, the network can densely deploy transmit and receive points (TRPs) to improve coverage and throughput. TRPs can support both uplink reception and downlink transmission. Alternatively, to improve uplink coverage and reduce deployment costs, TRPs can support only uplink reception. Therefore, how to indicate TCI status in different scenarios is an urgent issue that needs to be addressed. Summary of the Invention

[0006] The embodiments of the present application provide a wireless communication method, apparatus, device, and readable storage medium that can indicate the TCI status in deployment scenarios of various types of TRPs.

[0007] In a first aspect, a wireless communication method is provided, the method comprising:

[0008] 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 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; and P and Q are integers greater than or equal to zero.

[0009] 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;

[0010] 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.

[0011] In a second aspect, a wireless communication method is provided, the method comprising:

[0012] 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 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; and P and Q are integers greater than or equal to zero.

[0013] 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;

[0014] 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.

[0015] According to a third aspect, a wireless communication device is provided, including:

[0016] 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; and P and Q are integers greater than or equal to zero;

[0017] 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;

[0018] 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.

[0019] According to a fourth aspect, a wireless communication device is provided, including:

[0020] 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 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; and P and Q are integers greater than or equal to zero;

[0021] 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;

[0022] 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.

[0023] In a fifth aspect, a communication device is provided, which terminal includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and 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.

[0024] In a sixth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0025] In the seventh aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein 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.

[0026] In an eighth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0027] In the ninth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the wireless communication method as described in the first aspect, or the steps of the wireless communication method as described in the second aspect.

[0028] In an embodiment of the present application, the network-side device may configure, activate, or indicate to the terminal P first TCI states for downlink transmission and Q second TCI states for uplink transmission, where P may be greater than Q, or P may be less than Q, or P may be equal to Q. That is, the network-side device may configure, activate, or indicate to the terminal TCI states with the same number of uplink and downlink transmissions, or TCI states with different numbers of uplink and downlink transmissions, thereby enabling the indication of TCI states in deployment scenarios of various types of TRPs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0030] FIG2 is a schematic diagram of a deployment scenario of a TRP applicable to an embodiment of the present application;

[0031] FIG3 is a schematic diagram of the format of a MAC CE for activating the TCI state;

[0032] FIG4 is a schematic diagram of a wireless communication method provided in an embodiment of the present application;

[0033] FIG5 is a schematic diagram of a wireless communication device provided in an embodiment of the present application;

[0034] FIG6 is a schematic diagram of another wireless communication device provided in an embodiment of the present application;

[0035] FIG7 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0036] FIG8 is a hardware structure diagram of a terminal provided in an embodiment of the present application;

[0037] FIG9 is a hardware structure diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0039] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, 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 generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0040] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the result of the request in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the result of the request based on the judgment result.

[0041] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but 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 the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. thGeneration, 6G) communication system.

[0042] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (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 (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0043] A terminal may also be called user equipment (UE), terminal device, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0044] The network-side device 12 may include an access network device or a core network device, wherein 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. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the 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 (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0045] To facilitate a better understanding of the embodiments of the present application, the transmission configuration indicator (TCI) state of downlink signal transmission related to the present application is described.

[0046] In the beam management introduced in the 5G NR system, the network-side device can configure, activate, or indicate the corresponding TCI state for the downlink signal or downlink channel, or the uplink signal or uplink channel, so that the terminal uses the TCI state to receive the target downlink signal or target downlink channel, or to send the target uplink signal or uplink channel.

[0047] Among them, a TCI state can include the following configurations:

[0048] TCI state ID, used to identify a TCI state;

[0049] A maximum of two Quasi-Co-Located (QCL) information.

[0050] Among them, a QCL information contains the following information:

[0051] QCL type configuration, which can be one of QCL-TypeA, QCL-TypeB, QCL-TypeC, and QCL-TypeD;

[0052] The cell ID corresponding to the QCL information, the Band Width Part (BWP) ID, and the (source) reference signal identifier (which can be the Channel State Information Reference Signal (CSI-RS) resource ID or the Synchronization Signal Block (SSB) index).

[0053] Among them, the QCL type of at least one of the at most two QCL information is one of typeA, typeB, and typeC, and the QCL type of the other QCL information (if configured) is QCL type D.

[0054] The definitions of different QCL type configurations are as follows:

[0055] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0056] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0057] 'QCL-TypeC': {Doppler shift, average delay};

[0058] 'QCL-TypeD': {Spatial Rx parameter}.

[0059] If the network side device configures the QCL source reference signal of the target downlink channel as a certain reference SSB or a certain reference CSI-RS resource through the TCI state, and the QCL type is configured as typeA, typeB or typeC, the terminal device can assume that the target downlink channel and the target large-scale parameters of the reference SSB or reference CSI-RS resource are the same, and thus use the same corresponding parameters to receive the target downlink channel, and the target large-scale parameters are determined by the QCL type configuration. Similarly, if the network side device configures the QCL source reference signal of the target downlink channel as a certain reference SSB or a certain reference CSI-RS resource through the TCI state, and the QCL type is configured as type D, the terminal device can use the same receiving beam (i.e., Spatial Rx parameter) as that for receiving the reference SSB or reference CSI-RS resource to receive the target downlink channel. Typically, the target downlink channel and its reference SSB or reference CSI-RS resource are sent by the same TRP or the same antenna panel (panel) or the same beam on the network side. If the transmission TRP, transmission panel, or transmission beam of two downlink signals or downlink channels are different, different TCI states are usually configured.

[0060] To facilitate understanding of the embodiments of the present application, the transmit and receive point (TRP) related to the present application and only for uplink transmission is described.

[0061] The network can densely deploy TRPs to improve coverage and throughput. To reduce the cost and difficulty of TRP deployment and improve uplink coverage, some deployed TRPs can only receive signals without transmitting, that is, only transmit uplink, as shown in Figure 2. From a network energy-saving perspective, allowing TRPs to shut down downlink transmission links also has certain benefits. In scenarios with dense uplink traffic, uplink transmission no longer relies on downlink reference signal measurement and assistance, which can also reduce reference signal overhead to a certain extent.

[0062] To facilitate understanding of the embodiments of the present application, the multi-TRP (Multi-TRP, MTRP) scenario related to the present application is explained.

[0063] Starting with 5G NR system Rel-16, multi-TRP (MTRP) scenarios have been gradually introduced, where multiple TRPs collaborate to send data to the same UE, or multiple TRPs receive data from the same UE. Except for Coherent Joint Transmission (CJT), which supports up to four TRP collaborations, other transmission schemes support up to two TRP collaborations. Because the backhaul between TRPs can be divided into ideal (near real-time information exchange) and non-ideal (information exchange with a large delay), the implementation of multi-TRP transmission schemes also varies.

[0064] In the case of non-ideal backhaul, the achievable transmission scheme is the MTRP scheme of scheduling multiple downlink control information (DCI), including: the network can configure one of the two control resource set pool indexes (coresetPoolIndex) associated with different control resource sets (CORESET), and the DCI associated with different coresetPoolIndex independently schedules their respective physical downlink shared channels (PDSCH), which can be completely / partially / non-overlapping in time and frequency resources; the DCI associated with different coresetPoolIndex independently schedules their respective physical uplink shared channels (PUSCH), which can be completely / partially / non-overlapping in time and frequency resources. When the PUSCH is completely / partially overlapped, the UE needs to have the capability of simultaneous transmission with multiple panels (STxMP).

[0065] In an ideal backhaul scenario, in addition to the aforementioned MTRP scheme for multiple DCI schedules, other achievable transmission schemes include:

[0066] Two TRPs repeatedly send PDCCH;

[0067] Two TRPs send PDCCH in single frequency network (SFN) mode;

[0068] A single DCI-scheduled PDSCH is sent by two TRPs using space division multiplexing (SDM), frequency division multiplexing (FDM), time division multiplexing (TDM) repetition and SFN.

[0069] The UE sends repetitions of the PUCCH to two TRPs respectively, or a UE with multi-panel simultaneous transmission capability sends the PUCCH simultaneously in SFN mode;

[0070] The UE sends a single DCI-scheduled or configured grant (CG) PUSCH repetition to two TRPs respectively, or sends PUSCH simultaneously in SDM or SFN mode.

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

[0072] In 5G NR systems, after beam measurement and reporting, the network can provide beam indications for downlink and uplink channels or signals. This is used to establish a beam link between the network and the UE, enabling transmission of the target channel or signal. For the UE, beam information refers to the receive spatial domain filter used by the UE to receive downlink channels / signals and the transmit spatial domain filter used by the UE to transmit uplink channels / signals.

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

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

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

[0076] Depending on whether the uplink and downlink beams are the same, the network can be configured in 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 codepoint through MAC CE. Each codepoint corresponds to a {joint TCI state}, or the full set or subset of {DL TCI state, UL TCI state}.

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

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

[0082] In Separate TCI mode, when the codepoint indicated by the 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 shows a schematic format diagram of a TCI state activation / deactivation MAC CE, where the MAC CE activates up to 8 TCI codepoints and up to 16 TCI states. 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, a D / U field value of 1 indicates a joint / DL state, while a value of 0 indicates a UL TCI state.

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

[0085] In addition, the unified TCI framework links power control parameters to TCI states. Path loss reference signals (PLRS, pathloss RS) are configured within or associated with a TCI state (joint TCI state or UL TCI state). Other power control parameters (P0, alpha, closed loop index) used by different uplink channels / signals are individually configured and associated with the same TCI state. This means that PUCCH, PUSCH, and SRS each have their own power control parameters associated with the TCI state or included in the configuration information for each channel / signal.

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

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

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

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

[0090] 5G NR system Rel-18 extends the unified TCI framework to MTRP scenarios. The basic configuration and indication principles are consistent with single TRP. In order to implement various MTRP transmission schemes, two TCI states need to be indicated. Therefore:

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

[0092] In Separate TCI mode, each codepoint can correspond to the full set or 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 code point indicated by the DCI corresponds to a subset, only the TCI state of the indicated subset is updated, while other TCI states remain unchanged.

[0094] When two joint / DL / UL TCI states are indicated (i.e., both joint / DL / UL TCI states are in effect), how each target channel / signal uses the TCI state is decoupled from each other. That is, each target channel / signal independently determines whether to use the two indicated joint TCI states, or either or both of the two DL / UL TCI states.

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

[0096] The RRC parameters are for CORESET using UTCI state, aperiodic CSI-RS resources / CSI-RS resource set configuration using two joint TCI states, or either or both of the two DL TCI states; the RRC parameters are for each PUCCH resource / PUCCH resource group, SRS resource configuration using UTCI state using two joint TCI states, or either or both of the two UL TCI states.

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

[0098] The wireless communication method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0099] FIG4 is a schematic diagram of a wireless communication method provided in an embodiment of the present application. As shown in FIG4 , the method includes at least part of the following:

[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 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; and P and Q are integers greater than or equal to zero.

[0101] 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 equipment can configure, activate or indicate to the terminal a TCI state with the same number of uplink and downlink (i.e., uplink and downlink symmetry), or a TCI state with different numbers of uplink and downlink (i.e., uplink and downlink asymmetry), thereby meeting 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 of one or more component carriers (CC) or bandwidth parts (BWP).

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

[0106] In some embodiments, the second TCI state may be a joint 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 joint TCI states, the P first TCI states and the Q second TCI states correspond one-to-one to the same joint TCI state, that is, one first TCI state among the P first TCI states and one second TCI state among the Q second TCI states are the same joint TCI state.

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

[0109] For example, in the joint TCI mode, the first information may be used to configure, activate, or indicate P joint 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, and the first TCI state is the uplink TCI state, and the second TCI state is the downlink TCI state). The P uplink TCI states can be used for uplink transmission, for example, for the terminal to send a target uplink channel or a target uplink signal, and the P downlink TCI states can be used for downlink transmission, for example, for the terminal to receive a target downlink channel or a target downlink signal.

[0111] For example, in the independent TCI mode, the first information may 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 joint TCI states and B downlink TCI states, where A and B are positive integers. The A joint TCI states can be used for uplink transmission, such as sending a target uplink channel or a target uplink signal, and the A joint TCI states and the 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 (ie, supporting both joint TCI mode and independent TCI mode), the first information may 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, B=Y. That is, the X joint TCI states among the P first TCI states and the K joint TCI states among the Q second TCI states are the same, 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, the X joint TCI states among the P first TCI states and the K joint TCI states among the Q second TCI states are the same, both being the C TCI states, and Y = 0.

[0117] For example, in a hybrid TCI mode (ie, supporting both a joint TCI mode and an independent TCI mode), the first information may 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 transmission in joint TCI mode, independent TCI mode and hybrid TCI mode.

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

[0120] For example, when the first information is used to configure, activate, or indicate P joint TCI states, the P joint TCI states may be considered to be P first TCI states and 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 joint TCI state and at least one uplink TCI state, the at least one joint TCI state can be considered as the P first TCI states, and the at least one joint TCI state and at least one uplink TCI state can be considered as the Q second TCI states.

[0123] For another example, when the first information is used to configure, activate or indicate at least one joint TCI state and at least one downlink TCI state, the at least one joint TCI state and the at least one downlink TCI state can be considered as the P first TCI states, and the at least one joint 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 target uplink signal needs to be sent), and can also be applicable to scenarios where there is only downlink transmission (for example, only the target downlink channel or target downlink signal needs to be received), or, can also be applicable to scenarios where there is both uplink transmission and downlink transmission.

[0125] In an embodiment of the present application, when there is uplink transmission (e.g., sending a target uplink channel or a target uplink signal) and downlink transmission (e.g., receiving a target downlink channel or a target downlink signal), the number of TRPs for uplink transmission and the number of TRPs for downlink transmission may be the same, or may be different. Specifically, the number of the first TCI states used for downlink transmission and the number of the second TCI states used for uplink transmission may be the same, or may be 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 second TCI number used for uplink transmission is greater than the first TCI number used for downlink transmission.

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

[0128] For example, TRP1 only receives signals (i.e., TRP1 is a UL-only TRP), TRP2 can receive and send signals, and the terminal is scheduled to send the target uplink channel or target uplink signal to TRP1 and TRP2, and receive the target downlink channel or 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 used for downlink transmission.

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

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

[0131] For example, TRP2 only sends signals (i.e., TRP2 is a DL-only TRP), TRP1 can receive and send signals, and the terminal is scheduled to send the target uplink channel or target uplink signal to TRP1, and receive the target downlink channel or 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 used for uplink transmission.

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

[0133] PDSCH, PDCCH.

[0134] In some embodiments, the target uplink channel may include, 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 a terminal, such as a CSI-RS.

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

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

[0139] RRC signaling, MAC CE, DCI.

[0140] For example, the first information is carried through 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 the MAC CE, and is used to activate the P first TCI states and the Q second TCI states.

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

[0143] In some embodiments, the source reference signals of the Y downlink TCI states in the P first TCI states are downlink reference signals.

[0144] In some embodiments, the source reference signals of the L uplink TCI states in the Q second TCI states are uplink reference signals.

[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 in which the source reference signal is a downlink reference signal and TCI states in which the source reference signal is an uplink 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, wherein the first TCI state list includes TCI states in which the source reference signal is a downlink reference signal, and the second TCI state list includes TCI states in which the source reference signal is an uplink 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 a target first TCI state among the P first TCI states for downlink transmission.

[0151] For example, when P is equal to 1, the terminal can 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 a 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, one or two first TCI states, specifically, one or two joint TCI states, or one or two downlink TCI states, or one joint TCI state and one downlink TCI state.

[0153] The following describes a method for determining the target first TCI state in conjunction with Example 1.

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

[0155] Example 1-1:

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

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

[0158] The target downlink channel or target downlink signal is received using a target first TCI state among the M first TCI states, where M is a positive integer and 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, this embodiment 1-1 can be applicable to scenarios 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.

[0161] In this case, it can be understood that the number of TCI states that can be used for downlink transmission indicated by the network side device is greater than the number of TCI states required by the terminal for downlink transmission. Therefore, the terminal can first select M first TCI states from 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 from the P first TCI states, including:

[0163] In a case where P is equal to Q, the terminal determines the M first TCI states from among the P first TCI states.

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

[0165] Optionally, P equals Q and may include at least one of the following situations:

[0166] The first information indicates P joint TCI states, where the P joint TCI states can be used for uplink transmission, and M joint TCI states among the P joint 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 downlink TCI states among 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 side 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, indicating P joint TCI states, or indicating P uplink TCI states and P downlink TCI states. That is, in the embodiment of the present application, it is not necessary to change the indication method of the network side device. In this way, the number of TCI states that can be used for downlink transmission indicated by the network side 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 that can be used for downlink transmission. In this way, a consistent method can be adopted in the subsequent selection of the target first TCI state and the target second TCI state, which can be better compatible with existing technologies.

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

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

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

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

[0173] Information about 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 may 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 of the P first TCI states to use for downlink transmission.

[0177] In some other implementations, the terminal determines the M first TCI states from the P first TCI states based on the second information;

[0178] 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] The preset arrangement order of the P first TCI states.

[0182] Optionally, when the first indication information does not indicate which M first TCI states among the P first TCI states to use, the terminal may 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 a first TCI state in which the source reference signal is a downlink reference signal among the P first TCI states, or the M first TCI states do not include a first TCI state in which the source reference signal is an uplink reference signal. Selecting a TCI state in which the source reference signal is a downlink reference signal from the P first TCI states to form the M first TCI states, and then receiving a target downlink channel or target downlink signal based on a target first TCI state among the M first TCI states, facilitates ensuring reception performance of the target downlink channel or target downlink signal.

[0184] For another example, the terminal may determine M first TCI states from 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 processing complexity of the terminal.

[0186] For another example, the terminal may determine M first TCI states from 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 arranged earlier in the P first TCI states, or the M first TCI states arranged later in the P first TCI states. Selecting the first M first TCI states or the last M first TCI states of the P first TCI states is simple to implement and helps reduce 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] Example 1-2:

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

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

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

[0193] Determining, by the terminal, the target first TCI state for receiving the target downlink channel or the target downlink signal from the P first TCI states or the M first TCI states according to the second indication information;

[0194] The second indication information is used to indicate the target first TCI state for the target downlink channel or 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 in the P first TCI states through the second indication information.

[0199] In some embodiments, the second indication information may be obtained from the applied TCI state indication (applyIndicatedTCIState) or from the TCI selection field (TCI selection field).

[0200] Optionally, the applyIndicatedTCIState is included in at least one of the following:

[0201] CORESET RRC configuration parameters;

[0202] RRC configuration parameters for PDSCH scheduled by DCI format 1_0;

[0203] RRC configuration parameters for 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 based on the second indication information, wherein the second indication information is used to indicate the target first TCI state for the target downlink channel or target downlink signal among the M first TCI states.

[0206] In some embodiments, when M is equal to 1, the second indication information is ignored, or the second indication information is determined to be invalid. For example, when the first indication information exists and M is equal to 1, the second indication information is ignored, or the second indication information is determined to be 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 based on the second indication information, wherein the second indication information is used to indicate the target first TCI state for the target downlink channel or target downlink signal among the P first TCI states.

[0208] In some embodiments, when P is equal to 1, the second indication information is ignored, or the second indication information is determined to be invalid.

[0209] In some embodiments, when the terminal determines M first TCI states from P first TCI states, and M is greater than 1, the second indication information may indicate the target first TCI state for the target downlink channel or target downlink signal from the M first TCI states. 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, i.e., indicating the use of the first first TCI state, the second first TCI state, and both the first and second first TCI states of the two first TCI states.

[0210] In some embodiments, when the terminal does not perform an 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 for the target downlink channel or target downlink signal among the P first TCI states. 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 preset rules, for example, selecting the target first TCI state according to the source reference signal, identifier or arrangement order corresponding to the TCI state. For specific implementation, please refer to the relevant implementation of determining M first TCI states among P first TCI states. For the sake of brevity, it will not be repeated here.

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

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

[0214] For another example, when Q is greater than 1, the terminal may use a 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, one or two second TCI states, specifically, one or two combined TCI states, or one or two uplink TCI states, or one combined TCI state and one uplink TCI state.

[0215] The following describes a method for determining the target second TCI state in conjunction with Example 2.

[0216] Example 2: Determination of 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 a 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 embodiment 2-1 can be applicable 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 used for uplink transmission is less than the number of the first TCI states used for downlink transmission.

[0223] In this case, it can be understood that the number of TCI states indicated by the network side device that can be used for uplink transmission is greater than the number of TCI states required by the terminal 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 for uplink transmission.

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

[0225] In a case where P is equal to Q, the terminal determines the N second TCI states among the Q second TCI states.

[0226] Optionally, P equals Q and may include at least one of the following situations:

[0227] The first information indicates Q joint TCI states, N of the Q joint TCI states can be used for uplink transmission, and the Q joint 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 side 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, indicating P joint TCI states, or indicating P uplink TCI states and P downlink TCI states. That is, in the embodiment of the present application, it is not necessary to change the indication method of the network side device. In this way, the number of TCI states that can be used for uplink transmission indicated by the network side device 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 that can be used for uplink transmission. In this way, a consistent method can be adopted in the subsequent selection of the target first TCI state and the target second TCI state, which can be better compatible with existing technologies.

[0230] In some embodiments, the N second TCI states are indicated by the network side device, or may be selected by the terminal itself, for example, N second TCI states are selected from Q second TCI states based on preset rules. The signaling overhead of the network side device can be saved by the terminal determining the N second TCI states by itself.

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

[0232] The target uplink channel or target uplink signal may be sent using the N second TCI states among the Q second TCI states;

[0233] 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.

[0234] Optionally, the third indication information may 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-side device may indicate, through the third indication information, which N second TCI states of the Q second TCI states to use for uplink transmission.

[0237] In some other implementations, the terminal determines the N second TCI states from the Q second TCI states based on the third information;

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

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

[0240] 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 to use, 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 a second TCI state in which the source reference signal is a downlink reference signal among the Q second TCI states, or the N second TCI states do not include a second TCI state in which the source reference signal is an uplink reference signal. Selecting a TCI state in which the source reference signal is an uplink reference signal from among the Q second TCI states to form the N second TCI states, and then transmitting a target uplink channel or target uplink signal based on a target second TCI state among the N second TCI states, facilitates ensuring 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 from 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 helps reduce processing complexity of the terminal.

[0249] For another example, the terminal may determine N second TCI states from 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 first N second TCI states in the Q second TCI states, or the last N second TCI states in the Q second TCI states. Selecting the first N second TCI states or the last N second TCI states of the Q second TCI states simplifies implementation and helps reduce processing complexity of the terminal.

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

[0252] Example 2-2:

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

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

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

[0256] Determining, by the terminal, the target second TCI state for sending the target uplink channel or the target uplink signal from the Q second TCI states or the N second TCI states according to the fourth indication information;

[0257] 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 may 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 may indicate the target second TCI state among the Q second TCI states through fourth indication information.

[0261] For another example, after sending the first information and the third indication information, the network-side device may 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 may be obtained from applyIndicatedTCIState, or from an SRS resource set indicator field.

[0263] Optionally, the applyIndicatedTCIState is included in at least one of the following:

[0264] RRC configuration parameters for PUCCH resources / resource groups;

[0265] RRC configuration parameters for PUSCH scheduled with DCI format 0_0;

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

[0267] RRC configuration parameters for SRS.

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

[0269] In some embodiments, when N is greater than 1, the terminal determines the target second TCI state for sending the target uplink channel or target uplink signal among the N second TCI states based on the 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 N second TCI states.

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

[0271] In some embodiments, when Q is greater than 1, the terminal determines the target second TCI state for sending the target uplink channel or target uplink signal among the N second TCI states based on the fourth indication information, wherein the fourth indication information is used to indicate the target second TCI state for sending the target uplink channel or target uplink signal among the Q second TCI states.

[0272] In some embodiments, when Q is equal to 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 for sending the target uplink channel or target uplink signal from the N second TCI states, and the number of bits or the number of states of the fourth indication information is determined by N. For example, if N is 2, the fourth indication information may be 2 bits or three states, i.e., indicating the use of the first second TCI state, the second second TCI state, and the first and second second TCI states of the two second TCI states.

[0274] In some embodiments, the terminal does not perform an operation of determining N second TCI states among Q second TCI states, and Q is greater than 1, and the fourth indication information indicates the target second TCI state among the Q second TCI states for sending the target uplink channel or target uplink signal, and the number of bits or the number of 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 among Q second TCI states or N second TCI states according to preset rules, for example, selecting the target second TCI state according to the source reference signal, identifier or arrangement order corresponding to the TCI state. For specific implementation, please refer to the relevant implementation of determining N second TCI states among Q second TCI states. For the sake of brevity, it will not be repeated here.

[0276] In some embodiments, when the first indication information and the third indication information exist at the same time, the first indication information and the third indication information may be indicated by a single signaling, or may be indicated by different signalings. In some embodiments, when the second indication information and the fourth indication information exist at the same time, the second indication information and the fourth indication information may be indicated by a single signaling, or may be indicated by different signalings.

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

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

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

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

[0281] The following describes the specific implementation of the TCI state used by the terminal for uplink and downlink transmission in combination with several situations of the TCI state configured, activated or indicated by the first information.

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

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

[0284] This embodiment can be applicable to scenarios 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 joint TCI states from among the P joint TCI states, and use a target joint TCI state from among the N joint TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal. Furthermore, optionally, the terminal may use the target joint TCI state from among the P joint TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal.

[0286] This embodiment can be applicable 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 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 joint TCI state used by the terminal for downlink transmission and the target joint TCI state used by the terminal for uplink transmission may be the same or different.

[0288] It should be understood that the specific implementation of the terminal determining M joint TCI states or N joint TCI states among P joint TCI states can be referred to the relevant description in Example 1-1 or 2-1. For the sake of brevity, it will not be repeated here.

[0289] In some embodiments, the terminal may determine the target joint TCI state for downlink transmission from among the P joint TCI states or the M joint TCI states according to the second indication information. Specific implementations may refer to the relevant description in Example 1 and will not be repeated here.

[0290] In some embodiments, the terminal may determine a target joint TCI state for uplink transmission from among P joint TCI states or N joint TCI states according to the fourth indication information. Specific implementations are described in Example 2 and will not be repeated 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 from among the P downlink TCI states, and use a target downlink TCI state from among the M downlink TCI states for downlink transmission, such as receiving a target downlink channel or a target downlink signal. Furthermore, optionally, the terminal may use a target uplink TCI state from among the P uplink TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal.

[0293] This embodiment can be applicable to scenarios 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 from among P uplink TCI states, and use a target uplink TCI state from among the N uplink TCI states for uplink transmission, such as sending a target uplink channel or a target uplink signal. Furthermore, optionally, the terminal may use a target downlink TCI state from 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 applicable 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 used for uplink transmission is less than the number of the first TCI states used 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 can be referred to the relevant description in Example 1-1 or 2-1. For the sake of brevity, it will not be repeated here.

[0297] In some embodiments, the terminal may determine the target downlink TCI state for downlink transmission from among the P downlink TCI states or the M downlink TCI states according to the second indication information. Specific implementations may refer to the relevant description in Example 1 and will not be repeated here.

[0298] In some embodiments, the terminal may determine the target uplink TCI state for uplink transmission from among P uplink TCI states or N uplink TCI states according to the fourth indication information. Specific implementations may refer to the relevant description in Example 2 and will not be repeated here.

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

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

[0301] This embodiment can be applicable 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 used for uplink transmission is less than the number of the first TCI states used for downlink transmission.

[0302] It should be understood that the specific implementation of the terminal determining M TCI states from A joint TCI states and B downlink TCI states can be referred to the relevant description in Example 1-1. For the sake of brevity, it will not be repeated here.

[0303] In some embodiments, the terminal may determine the target TCI state for downlink transmission from A joint TCI states and B downlink TCI states or M TCI states according to the second indication information. Specific implementations are described in Example 1 and are not repeated here.

[0304] Case 4: 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.

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

[0306] This embodiment can be applicable to scenarios 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.

[0307] It should be understood that the specific implementation of the terminal determining N TCI states from C joint TCI states and D uplink TCI states can be referred to the relevant description in Example 2-1, and will not be repeated here for the sake of brevity.

[0308] In some embodiments, the terminal may determine the target TCI state for uplink transmission from C joint TCI states and D uplink TCI states or N TCI states according to the fourth indication information. Specific implementations are described in Example 2 and are not repeated here.

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

[0310] The terminal receives a first media access control element MAC CE, where 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, wherein 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 TCI states in the P first TCI states and the Q second TCI states in use are updated to the TCI states in the subset, and the other TCI states in the P first TCI states and the Q second TCI states in use remain unchanged.

[0313] In some embodiments, the TCI state activated by the first MAC CE includes at least one of the following situations:

[0314] P joint TCI states;

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

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

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

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

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

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

[0321] Table 1

[0322] Furthermore, which joint TCI state to use to receive the target downlink channel or target downlink signal can be determined according to the instruction of the network side device, or can also be selected by the terminal.

[0323] For example, 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; and the joint TCI state corresponding to TCI state ID 1 and TCI state ID2 can be used for the target uplink channel or target uplink signal.

[0324] For another example, the third indication information indicates that the first TCI state can be used to send the target uplink channel or the target uplink signal, then the joint TCI state corresponding to TCI state ID 1 can be used to send the target uplink channel or the target uplink signal; and the joint TCI state corresponding to TCI state ID 1 and TCI state ID2 can be used for the target downlink channel or the target downlink signal.

[0325] In other specific embodiments, in independent TCI mode, the TCI state information corresponding to one code point of the first MAC CE is shown in Table 2, wherein one code point of the first MAC CE corresponds to 2 uplink TCI states and 2 downlink TCI states, that is, P=Q=2.

[0326] Optionally, the first MAC CE includes a first indication field, which is used to indicate the number of TCI states corresponding to a code point, for example, corresponding to one TCI state or multiple TCI states.

[0327] Optionally, the first MAC CE includes a second indication field (e.g., 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. In this case, one code point may correspond to one uplink TCI state and one downlink TCI state, or one uplink TCI state, or one downlink or combined TCI state, or one uplink TCI state and one combined TCI state, or one downlink TCI state and one combined TCI state. "D" indicates that the TCI state is a downlink TCI state, and "U" indicates that the TCI state is an uplink TCI state. That is, the first MAC CE may 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.

[0328] Table 2

[0329] Furthermore, which uplink TCI state and / or downlink TCI state to use can be determined according to the instruction of the network side device, or can also be selected by the terminal.

[0330] For example, 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 state corresponding to TCI state ID 3 and TCI state ID4 can be used for the target uplink channel or target uplink signal.

[0331] For another example, the third indication information indicates that the first UL TCI state can be used to send the target uplink channel or target uplink signal, then the UL TCI state corresponding to TCI state ID 3 can be used to send the target uplink channel or target uplink signal; optionally, the DL TCI state corresponding to TCI state ID 1 and TCI state ID2 can be used for the target downlink channel or target downlink signal.

[0332] In some further specific embodiments, in independent TCI mode, the TCI state information corresponding to a code point of the first MAC CE is shown in Table 3, wherein a code point of the first MAC CE corresponds to 2 uplink TCI states and 1 downlink TCI state, that is, P=2, Q=1.

[0333] Optionally, the first MAC CE includes a first indication field, which is used to indicate the number of TCI states corresponding to a code point, for example, corresponding to one TCI state or multiple TCI states.

[0334] Optionally, the first MAC CE includes a second indication field (e.g., 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. In this case, one code point may correspond to one uplink TCI state and one downlink TCI state, or one uplink TCI state, or one downlink or combined TCI state, or one uplink TCI state and one combined TCI state, or one downlink TCI state and one combined TCI state. "D" indicates that the TCI state is a downlink TCI state, and "U" indicates that the TCI state is an uplink TCI state. That is, the first MAC CE may indicate one downlink TCI state, i.e., downlink TCI state 1, and two uplink TCI states, i.e., uplink TCI state 2 and uplink TCI state 3.

[0335] Table 3

[0336] Furthermore, which uplink TCI state to use can be determined based on instructions from a network-side device, or can be selected by the terminal.

[0337] For example, the third indication information indicates that the first UL TCI state can be used to send the target uplink channel or target uplink signal, then the UL TCI state corresponding to TCI state ID 2 can be used to send the target uplink channel or target uplink signal, and the DL TCI state corresponding to TCI state ID 1 can be used for the target downlink channel or target downlink signal.

[0338] 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 one joint TCI state and one uplink TCI state.

[0339] Optionally, the first MAC CE includes a first indication field, which is used to indicate the number of TCI states corresponding to a code point, for example, corresponding to one TCI state or multiple TCI states.

[0340] Optionally, the first MAC CE includes a second indication field (e.g., 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. In this case, one code point may correspond to one uplink TCI state and one downlink TCI state, or one uplink TCI state, or one downlink or combined TCI state, or one uplink TCI state and one combined TCI state, or one downlink TCI state and one combined TCI state. "J" is used to indicate that the TCI state is a combined TCI state, and "U" is used to indicate that the TCI state is an uplink TCI state. That is, the first MAC CE may indicate one combined TCI state, i.e., combined TCI state 1, and one uplink TCI state, i.e., uplink TCI state 2.

[0341] Table 4

[0342] Furthermore, which TCI state to use for uplink transmission can be determined based on instructions from a network-side device, or can be selected by the terminal.

[0343] For example, the first indication information indicates that the second TCI state can be used to send the target uplink channel or target uplink signal, then the UL TCI state corresponding to TCI state ID 2 can be used to send the target uplink channel or target uplink signal, and the joint TCI state corresponding to TCI state ID 1 can be used for the target downlink channel or target downlink signal.

[0344] In summary, in an embodiment 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 can be less than Q, or P can be 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 transmissions, or TCI states with different numbers of uplink and downlink transmissions, thereby meeting the transmission requirements of various types of TRP deployment scenarios.

[0345] The above text, in conjunction with Figure 4, describes in detail the method embodiment of the present application. The following text, in conjunction with Figures 5 to 9, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.

[0346] The wireless communication method provided in the embodiment of the present application can be executed by a wireless communication device. In the embodiment of the present application, the wireless communication device provided in the embodiment of the present application is described by taking the wireless communication method executed by the wireless communication device as an example.

[0347] FIG5 shows a schematic block diagram of a wireless communication device 500 according to an embodiment of the present application. As shown in FIG5 , the device 500 includes:

[0348] A receiving unit 510 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 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; and P and Q are integers greater than or equal to zero.

[0349] 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;

[0350] 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.

[0351] In some embodiments, when P=Q, and the P first TCI states and the Q second TCI states are all joint TCI states, the P first TCI states and the Q second TCI states correspond one-to-one to the same joint TCI state.

[0352] In some embodiments, the apparatus 500 further includes:

[0353] A processing unit is configured to determine M first TCI states from the P first TCI states, and use a target first TCI state from the M first TCI states to receive the target downlink channel or target downlink signal, where M is a positive integer and is less than or equal to P.

[0354] In some embodiments, the processing unit is specifically configured to:

[0355] In a case where P is equal to Q, the M first TCI states are determined among the P first TCI states.

[0356] In some embodiments, the processing unit is specifically configured to:

[0357] Determining the M first TCI states from the P first TCI states according to the first indication information;

[0358] The first indication information is used to indicate at least one of the following:

[0359] The target downlink channel or target downlink signal may be received using the M first TCI states among the P first TCI states;

[0360] Information about the M first TCI states among the P first TCI states that can be used for the target downlink channel or target downlink signal.

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

[0362] determining the M first TCI states from the P first TCI states according to the second information;

[0363] The second information includes at least one of the following:

[0364] source reference signals corresponding to the P first TCI states;

[0365] Preset identifiers of the P first TCI states;

[0366] The preset arrangement order of the P first TCI states.

[0367] In some embodiments, the M first TCI states include a first TCI state in which the source reference signal is a downlink reference signal among the P first TCI states, or the M first TCI states do not include a first TCI state in which the source reference signal is an uplink reference signal.

[0368] In some embodiments, the apparatus 500 further includes:

[0369] a processing unit, configured to determine, according to the second indication information, the target first TCI state for receiving the target downlink channel or the target downlink signal from the P first TCI states or the M first TCI states;

[0370] The second indication information is used to indicate the target first TCI state for the target downlink channel or target downlink signal among the P first TCI states or the M first TCI states.

[0371] In some embodiments, the processing unit is further configured to:

[0372] When M is equal to 1, the second indication information is ignored, or the second indication information is determined to be invalid.

[0373] In some embodiments, when M is greater than 1 and the second indication information indicates the target first TCI state for the target downlink channel or target downlink signal among the M first TCI states, the number of bits or the number of states of the second indication information is determined by M; or

[0374] When P is greater than 1 and the second indication information indicates the target first TCI state for the target downlink channel or target downlink signal among the P first TCI states, the number of bits or the number of states of the second indication information is determined by P or X+Y.

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

[0376] A sending unit is configured to send the target uplink channel or target uplink signal using a target second TCI state among the Q second TCI states.

[0377] In some embodiments, the apparatus further comprises:

[0378] A processing unit is configured to determine N second TCI states from the Q second TCI states, and use a target second TCI state from the N second TCI states to send the target uplink channel or target uplink signal, where N is a positive integer and N is less than or equal to Q.

[0379] In some embodiments, the processing unit is further configured to:

[0380] In a case where P is equal to Q, the N second TCI states are determined among the Q second TCI states.

[0381] In some embodiments, the processing unit is further configured to:

[0382] Determining the N second TCI states from the Q second TCI states according to the third indication information;

[0383] The third indication information is used to indicate at least one of the following:

[0384] The target uplink channel or target uplink signal may be sent using the N second TCI states among the Q second TCI states;

[0385] 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.

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

[0387] determining the N second TCI states from the Q second TCI states according to the third information;

[0388] The third information includes at least one of the following:

[0389] source reference signals corresponding to the Q second TCI states;

[0390] Preset identifiers of the Q second TCI states;

[0391] The preset arrangement order of the Q second TCI states.

[0392] In some embodiments, the N second TCI states include a second TCI state in which the source reference signal is an uplink reference signal among the Q second TCI states, or the N second TCI states do not include a second TCI state in which the source reference signal is a downlink reference signal.

[0393] In some embodiments, the apparatus 500 further includes:

[0394] a processing unit, configured to determine, according to fourth indication information, the target second TCI state for sending the target uplink channel or the target uplink signal from the Q second TCI states or the N second TCI states;

[0395] 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.

[0396] In some embodiments, the processing unit is further configured to:

[0397] When N is equal to 1, the fourth indication information is ignored, or the fourth indication information is determined to be invalid.

[0398] 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 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

[0399] When Q is greater than 1 and the fourth indication information indicates the target second TCI state for the target uplink channel or 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.

[0400] In some embodiments, the receiving unit 510 is further configured to:

[0401] The target downlink channel or target downlink signal is received using a target first TCI state among the P first TCI states.

[0402] In some embodiments, the source reference signals of the Y downlink TCI states in the P first TCI states are downlink reference signals; or

[0403] The source reference signals of the L uplink TCI states in the Q second TCI states are uplink reference signals.

[0404] Optionally, in some embodiments, the receiving unit and the sending unit may be a communication interface or a transceiver, or an input and output interface of a communication chip or a system on a chip, and the processing unit may be one or more processors.

[0405] It should be understood that the device 500 according to the embodiment of the present application may correspond to the terminal in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the device 500 are respectively for realizing the corresponding processes of the terminal in the method embodiment shown in Figure 4 and achieving the same technical effect. To avoid repetition, they will not be repeated here.

[0406] FIG6 shows a schematic block diagram of a wireless communication device 600 according to an embodiment of the present application. As shown in FIG6 , the device 600 includes:

[0407] A sending unit 610 is 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; and P and Q are integers greater than or equal to zero.

[0408] 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;

[0409] 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.

[0410] In some embodiments, when P=Q, and the P first TCI states and the Q second TCI states are all joint TCI states, the P first TCI states and the Q second TCI states correspond one-to-one to the same joint TCI state.

[0411] In some embodiments, the sending unit 610 is further configured to:

[0412] Sending first indication information to the terminal, where the first indication information is used to indicate at least one of the following:

[0413] The target downlink channel or target downlink signal may be received using M first TCI states among the P first TCI states;

[0414] Information about the M first TCI states among the P first TCI states that can be used for the target downlink channel or target downlink signal.

[0415] In some embodiments, the sending unit 610 is further configured to:

[0416] Send second indication information to the terminal, where the second indication information is used to indicate the target first TCI state for the target downlink channel or target downlink signal among the P first TCI states or the M first TCI states, 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.

[0417] In some embodiments, the sending unit 610 is further configured to:

[0418] Sending third indication information to the terminal, where the third indication information is used to indicate at least one of the following:

[0419] The target uplink channel or target uplink signal may be sent using the N second TCI states among the Q second TCI states;

[0420] 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.

[0421] In some embodiments, the sending unit 610 is further configured to:

[0422] Send fourth indication information to the terminal, 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 or the N second TCI states, 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.

[0423] In some embodiments, the apparatus 600 further includes:

[0424] A receiving unit is configured to receive the target uplink channel or target uplink signal in the target second TCI state.

[0425] In some embodiments, the sending unit is further configured to:

[0426] The target downlink channel or target downlink signal is sent according to the target first TCI state.

[0427] Optionally, in some embodiments, the sending unit and the receiving unit may be a communication interface or a transceiver, or an input and output interface of a communication chip or a system on chip.

[0428] It should be understood that the signal forwarding device 600 according to the embodiment of the present application may correspond to the network side device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the device 600 are respectively for realizing the corresponding processes of the network side device in the method embodiment shown in Figure 4 and achieving the same technical effect. To avoid repetition, they will not be repeated here.

[0429] In some embodiments, the apparatus 500 and apparatus 600 in the embodiments of the present application may be electronic devices, such as electronic devices with an operating system, or components in electronic devices, such as integrated circuits or chips. The electronic device may be a terminal or other device other than a terminal. For example, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0430] As shown in Figure 7, an embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702. The memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction, when executed by the processor 701, implements the steps performed by the terminal in the above-mentioned wireless communication method embodiment, and can achieve the same technical effect. When the communication device 700 is a network-side device, the program or instruction, when executed by the processor 701, implements the various steps performed by the network-side device in the above-mentioned wireless communication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0431] The present application also provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG4 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG8 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0432] The terminal 800 includes but is not limited to: 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 at least some of the components of the processor 810.

[0433] Those skilled in the art will appreciate that the terminal 800 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 810 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG8 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0434] It should be understood that in an embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 processes the image data of a static picture or video 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 a touch panel 8071 and at least one of 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. 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 repeated here.

[0435] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 801 may transmit the data to the processor 810 for processing. Furthermore, the radio frequency unit 801 may send uplink data to the network-side device. Typically, 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, and the like.

[0436] 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, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 809 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may 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 may be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0437] Processor 810 may include one or more processing units. Optionally, processor 810 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 810.

[0438] 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 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, and P and Q are integers greater than or equal to zero.

[0439] 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;

[0440] 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.

[0441] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0442] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG4 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0443] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 9, 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. Antenna 91 is connected to radio frequency device 92. In the uplink direction, radio frequency device 92 receives information via antenna 91 and sends the received information to baseband device 93 for processing. In the downlink direction, baseband device 93 processes the information to be transmitted and sends it to radio frequency device 92. Radio frequency device 92 processes the received information and then sends it through antenna 91.

[0444] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 93 , which includes a baseband processor.

[0445] The baseband device 93 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 9, 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 network side device operations shown in the above method embodiment.

[0446] The network side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0447] Specifically, the network side device 900 of the embodiment of the present application also 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 the methods of execution of each module shown in FIG6 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0448] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned wireless communication method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0449] The processor is a processor in the communication device, terminal, or network-side device described in the above embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0450] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned wireless communication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0451] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0452] An embodiment of the present application further provides 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 wireless communication method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0453] An embodiment of the present application further provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the wireless communication method described above, and the network-side device can be used to execute the steps of the wireless communication method described above.

[0454] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the 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 the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0455] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0456] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A wireless communication method, wherein: include: 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 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; and P and Q are integers greater than or equal to zero; 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 comprises: The terminal determines M first TCI states from the P first TCI states; The target downlink channel or target downlink signal is received 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 determines M first TCI states from the P first TCI states, including: In a case where 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, wherein: The method further comprises: The terminal determines, according to the first indication information, the M first TCI states from the P first TCI states; The first indication information is used to indicate at least one of the following: The target downlink channel or target downlink signal may be received using the 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.

5. The method according to claim 2 or 3, wherein: The method further comprises: The terminal determines, according to the second information, the M first TCI states from the P first TCI states; The second information includes at least one of the following: The source reference signals corresponding to the P first TCI states; Preset identifiers of the P first TCI states; The preset arrangement order of the P first TCI states.

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

7. The method according to any one of claims 1 to 6, wherein: The method further comprises: The terminal determines, according to the second indication information, the target first TCI state for receiving the target downlink channel or the target downlink signal from the P first TCI states or the M first TCI states; 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.

8. The method according to claim 7, wherein: The method further comprises: When M is equal to 1, the second indication information is ignored, or the second indication information is determined to be 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 for the target downlink channel or target downlink signal among the M first TCI states, 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 for the target downlink channel or target downlink signal among the P first TCI states, 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 to 9, wherein: The method further comprises: The terminal sends the target uplink channel or the target uplink signal using a target second TCI state among the Q second TCI states.

11. The method according to any one of claims 1 to 10, wherein: The method further comprises: The terminal determines N second TCI states from the Q second TCI states; The target uplink channel or target uplink signal is sent using a 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.

12. The method according to claim 11, wherein: The terminal determines N second TCI states from the Q second TCI states, including: In a case where 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, wherein: The method further comprises: The terminal determines, according to the third indication information, the N second TCI states from the Q second TCI states; The third indication information is used to indicate at least one of the following: The target uplink channel or target uplink signal may be sent using the N second TCI states among the Q second TCI states; 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.

14. The method according to claim 11 or 12, wherein: The method further comprises: The terminal determines, according to the third information, the N second TCI states from the Q second TCI states; The third information includes at least one of the following: Source reference signals corresponding to the Q second TCI states; The preset identifiers of the Q second TCI states; The preset arrangement order of the Q second TCI states.

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

16. The method according to any one of claims 1 to 15, wherein: The method further comprises: Determining, by the terminal, the target second TCI state for sending the target uplink channel or the target uplink signal from among the Q second TCI states or the N second TCI states according to the fourth indication information; 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.

17. The method according to claim 16, wherein: The method further comprises: When N is equal to 1, the fourth indication information is ignored, or the fourth indication information is determined to be 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 for the target uplink channel or target uplink signal in the N second TCI states, the number of bits or the number of 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 for the target uplink channel or 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.

19. The method according to any one of claims 1 to 18, wherein: The method further comprises: The terminal receives the target downlink channel or target downlink signal using a target first TCI state among the P first TCI states.

20. The method according to any one of claims 1 to 19, wherein: The source reference signals of the Y downlink TCI states in the P first TCI states are downlink reference signals; or The source reference signals of the L uplink TCI states in the Q second TCI states are uplink reference signals.

21. According to the method described in any one of claims 1-20, when P=Q, and the P first TCI states and the Q second TCI states are all joint TCI states, the P first TCI states and the Q second TCI states correspond one-to-one to the same joint TCI state.

22. A wireless communication method, wherein: include: 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 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; 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, wherein: The method further comprises: The network side device sends first indication information to the terminal, where the first indication information is used to indicate at least one of the following: The target downlink channel or target downlink signal may 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, wherein: The method further comprises: The network side device sends second indication information to the terminal, and the second indication information is used to indicate the target first TCI state for the target downlink channel or target downlink signal among the P first TCI states or the M first TCI states, 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 to 24, wherein: The method further comprises: The network side device sends third indication information to the terminal, where the third indication information is used to indicate at least one of the following: The target uplink channel or target uplink signal may be sent using N second TCI states among the Q second TCI states; 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.

26. The method according to any one of claims 22 to 25, wherein: The method further comprises: The network side device sends fourth indication information to the terminal, 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 Q second TCI states or the N second TCI states, wherein the N second TCI states are included in the Q second TCI states, wherein 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 the P first TCI states and the Q second TCI states are all 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, wherein: include: A receiving unit, configured to receive first information, wherein 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, wherein P is greater than Q, P is less than Q, or P is equal to Q; and P and Q are integers greater than or equal to zero; 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 device also includes: a processing unit, configured to determine M first TCI states from among the P first TCI states; The receiving unit is further used to: receive the target downlink channel or 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.

30. The device according to claim 28 or 29, wherein: The device also includes: A sending unit is used to send the target uplink channel or the target uplink signal using a target second TCI state among the Q second TCI states.

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

32. The apparatus of claim 28, 29 or 31, wherein: The receiving unit is also used for: The target downlink channel or the target downlink signal is received using a target first TCI state among the P first TCI states.

33. A wireless communication device, wherein: include: A sending unit, configured to send first information to a terminal, wherein 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, wherein P is greater than Q, P is less than Q, or P is equal to Q; and P and Q are integers greater than or equal to zero; 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.

34. The device according to claim 33, wherein The sending unit is also used for: Sending at least one of the first indication information, the second indication information, the third indication information, and the fourth indication information to the terminal: The first indication information is used to indicate at least one of the following: The target downlink channel or target downlink signal may be received using M first TCI states among the P first TCI states; Information of the M first TCI states that can be used for the target downlink channel or target downlink signal among the P first TCI states; 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, and the M first TCI states are included in the P first TCI states, wherein M is a positive integer, and M is less than or equal to P; The third indication information is used to indicate at least one of the following: The target uplink channel or target uplink signal may be sent using N second TCI states among the Q second TCI states; Information of the N second TCI states among the Q second TCI states that can be used for the target uplink channel or target uplink signal; 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, wherein the N second TCI states are included in the Q second TCI states, wherein N is a positive integer and N is less than or equal to Q.

35. A communication device, wherein: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 21 or the steps of the method according to any one of claims 22 to 27 are implemented.

36. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the wireless communication method according to any one of claims 1 to 21, or implements the steps of the wireless communication method according to any one of claims 22 to 27.

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