Indication methods and related products

Abstract

An embodiment of the present application discloses an indication method and related products, the method comprising: a terminal device receives first information sent by a network device, the first information being used to indicate that the terminal device transmits to a single TRP or the terminal device transmits to multiple TRPs, so that the terminal device can determine whether to transmit to a single TRP or to multiple TRPs based on the first information, thereby providing a technical solution that supports dynamic switching of terminal device transmission to a single TRP and to multiple TRPs.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an indication method and related products. Background Art

[0002] Currently, NR protocol version 17 (Release 17, R17) is currently standardizing support for uplink transmission to multiple transmission and reception points (Transmission and Reception Point, TRP) (for example: Physical Uplink Shared Channel (PUSCH), but there is currently no specific solution for how to support dynamic switching of transmission PUSCH for a single TRP and transmission PUSCH for multiple TRPs. Summary of the invention

[0003] The embodiments of the present application provide an indication method and related products, and provide a technical solution that supports dynamic switching of terminal devices to single TRP transmission and multiple TRP transmissions.

[0004] In a first aspect, an embodiment of the present application provides an indication method, which is applied to a terminal device, and the method includes:

[0005] Receive first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0006] In a second aspect, an embodiment of the present application provides an indication method, which is applied to a network device, and the method includes:

[0007] Send first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0008] In a third aspect, an indication device provided by an embodiment of the present application is applied to a terminal device, and the device includes:

[0009] The transceiver unit is used to receive first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0010] In a fourth aspect, an indication device provided by an embodiment of the present application is applied to a network device, and the device includes:

[0011] A transceiver unit is used to send first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0012] In a fifth aspect, an embodiment of the present application provides a chip, which is used to obtain first information, and the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0013] In a sixth aspect, an embodiment of the present application provides a chip module, comprising a transceiver component and a chip, wherein the chip is used to receive first information through the transceiver component, and the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0014] In a seventh aspect, an embodiment of the present application provides a chip, which is used to output first information, wherein the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0015] In an eighth aspect, an embodiment of the present application provides a chip module, comprising a transceiver component and a chip, wherein the chip is used to send first information through the transceiver component, and the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0016] In the ninth aspect, an embodiment of the present application provides an electronic device, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the methods described in the first and second aspects above.

[0017] In the tenth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the steps of the method described in any one of the first aspect or the steps of the method described in any one of the second aspect.

[0018] In an eleventh aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the first aspect and the second aspect of the embodiment of the present application. The computer program product may be a software installation package.

[0019] The technical solution provided by the present application is that a terminal device receives first information sent by a network device, and the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs, so that the terminal device can determine whether to transmit to a single TRP or to multiple TRPs based on the first information, thereby providing a technical solution that supports dynamic switching of terminal devices to transmit to a single TRP and to multiple TRPs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0022] Figure 2 It is a flowchart of an indication method provided in an embodiment of the present application;

[0023] Figure 3 It is a block diagram of the functional units of an indication device provided in an embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0026] For example, Figure 1 As shown, it is a schematic diagram of a communication system architecture provided by an embodiment of the present application. Figure 1 As shown, the communication system includes a network device and a terminal device. The network device and the terminal device are connected via wireless communication, and the network device may include multiple transmission reception points (TRPs), each of which may communicate with the terminal device, and the terminal device may communicate with multiple TRPs at the same time.

[0027] The communication system includes, but is not limited to, Long Term Evolution (LTE) system, 5G communication system (such as New Radio (NR)), a communication system integrating multiple communication technologies (such as a communication system integrating LTE technology and NR technology), or various new communication systems applicable to the future, such as 6G communication system, 7G communication system, etc., which are not limited in the embodiments of the present application. The technical solutions of the embodiments of the present application are also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything communication architecture, etc. The above-mentioned network devices may be access network devices, such as eNodeB, NR base station or access point (Access Point, AP), and the access network devices may be connected to the core network elements via wired connection or wireless connection.

[0028] The terminal device of the embodiment of the present application is a device with a wireless communication function, which can be called a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent or a UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as LTE, new radio (NR), wideband code division multiple access (WCDMA), etc. For example, the terminal device may be a mobile phone, a tablet computer (pad), a desktop computer, a laptop computer, an all-in-one computer, a vehicle-mounted terminal, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public mobile land network (PLMN), etc. In some embodiments of the present application, the terminal device may also be a device with transceiver functions, such as a chip system, wherein the chip system may include a chip and may also include other discrete devices.

[0029] In the embodiment of the present application, the network device is a device that provides wireless communication functions for the terminal device, and can also be referred to as a radio access network (RAN) device, or an access network element, etc. Among them, the access network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the access network device includes but is not limited to: a next-generation base station (generation nodeB, gNB) in the fifth-generation mobile communication system (5th-generation, 5G), an evolved node B (evolved node B, eNB), a radio network controller (radio network controller, RNC), a node B (nodeB, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiverstation, BTS), a home base station (for example, home evolved node B, or home node B, HNB), a baseband unit (baseband unit, BBU), a transmitting and receiving point (transmitting and receiving point, TRP), a transmitting point (transmitting point, TP), a mobile switching center, etc. The network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and an access network device in future mobile communications or an access network device in a future evolved PLMN. In some embodiments, the access network device may also be a device having a wireless communication function for a terminal device, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

[0030] It should be noted that Figure 1 The forms and quantities of the network devices and terminal devices shown are for example only and do not constitute a limitation on the embodiments of the present application.

[0031] The embodiment of the present application defines a unidirectional communication link from a network device to a terminal device as a downlink (DL), data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called the downlink direction; and a unidirectional communication link from a terminal device to a network device as an uplink (UL), data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called the uplink direction.

[0032] It should be understood that the "at least one" involved in the embodiments of the present application refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0033] Furthermore, unless otherwise specified, ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects. For example, the first information and the second information are only used to distinguish different information, and do not indicate the difference in content, priority, sending order or importance of the two types of information.

[0034] The "network" and "system" in the embodiments of the present disclosure express the same concept, and the communication system is the communication network. The "connection" in the embodiments of the present disclosure refers to various connection methods such as direct connection or indirect connection, such as connecting different devices through a communication interface, without any limitation.

[0035] Combination Figure 1 The communication system shown introduces the indication method of the embodiment of the present application.

[0036] See also Figure 2 , Figure 2 A flow chart of an indication method provided in an embodiment of the present application specifically includes the following steps.

[0037] S210. The network device sends first information to the terminal device, where the first information is used to instruct the terminal device to transmit to a single TRP or to transmit to multiple TRPs.

[0038] Among them, the terminal device can communicate with a single TRP or multiple TRPs. The network device can send a first message to the terminal device to indicate whether the terminal device is oriented to a single TRP transmission or to multiple TRP transmissions, so that the terminal device can support dynamic switching between single TRP transmission and multiple TRP transmissions.

[0039] Optionally, the first information is DCI or high-layer signaling.

[0040] The network device may configure the first information in advance through high-level parameters, for example, the first information may be configured through Radio Resource Control (RRC). Of course, the network device may also indicate the first information through information in DCI (Downlink control information), which is not limited in the present disclosure.

[0041] S220. The terminal device receives the first information.

[0042] In an embodiment of the present application, the terminal device can send relevant channels and / or information to a single TRP or multiple TRPs according to the instructions of the first information.

[0043] Optionally, the transmission mode of the terminal device is codebook-based PUSCH transmission.

[0044] In the case of uplink transmission based on a codebook, the terminal device will send SRS on multiple SRS resources, and the SRS on each SRS resource uses a different beam. The network device selects an SRS resource from which to obtain uplink channel state information (CSI), and indicates the terminal device through a sounding reference signal resource indicator (SRS resource indicator, SRI) and its corresponding precoding information and number of layers, so that the terminal device determines the uplink precoding matrix and number of layers corresponding to the precoding information and number of layers from the codebook according to the SRI and the precoding information and number of layers, and uses the corresponding beam of the SRS resource to beamform the uplink data. In other words, for codebook-based transmission, the network device can provide the terminal device with precoding information and number of layers, and the terminal device selects the precoding for PUSCH transmission from the codebook according to the indication.

[0045] Optionally, the transmission mode of the terminal device is non-codebook based PUSCH transmission.

[0046] For non-codebook based uplink PUSCH transmission, the network device may send one or more selected SRS resources to the terminal device and may indicate the precoder for PUSCH transmission through SRI.

[0047] In an embodiment of the present application, an SRI or a transmission configuration indication (TCI) can be associated with a TRP. If an SRI / TCI is valid, it indicates that the terminal device can transmit to the TRP associated with the SRI / TCI; if the SRI / TCI is invalid, it indicates that the terminal device cannot transmit to the TRP associated with the SRI / TCI. For example, if the first SRI / TCI corresponds to TRP1 and the second SRI / TCI corresponds to TRP2, when the first SRI / TCI is valid and the second SRI / TCI is invalid, the terminal device only transmits to TRP1; when both the first SRI / TCI and the second SRI / TCI are valid, the terminal device can transmit to both TRP1 and TRP2.

[0048] Exemplarily, one SRI / TCI may also be associated with multiple TRPs. If an SRI / TCI is valid, the terminal device may transmit to multiple TRPs associated with the SRI / TCI; if the SRI / TCI is invalid, the terminal device cannot transmit to multiple TRPs associated with the SRI / TCI.

[0049] Among them, each value of the SRI / TCI can represent one or more SRS resources, and different values ​​represent different SRS resources. According to the value of SRI / TCI, the terminal device can determine the precoder, antenna port and TRP for transmitting PUSCH. Exemplarily, the terminal device can pre-store a SRI / TCI mapping table, and each SRI / TCI value corresponds to an SRS resource index, TRP, precoding matrix, antenna port, etc.

[0050] Exemplarily, for codebook-based PUSCH transmission, a SRI / TCI may also be associated with a precoding information and number of layers. If a SRI / TCI is valid and / or the precoding information and number of layers associated with the SRI / TCI are valid, the terminal device may use the precoding information and the precoder corresponding to the number of layers associated with the SRI / TCI to transmit to the TRP associated with the SRI / TCI; if the SRI / TCI is invalid and / or the precoding information and number of layers associated with the SRI / TCI are invalid, the terminal device does not transmit to the TRP associated with the SRI / TCI.

[0051] Specifically, for codebook-based PUSCH transmission, if a SRI / TCI is valid, the terminal device can transmit to the SRI / TCI and / or the TRP corresponding to the precoding information and number of layers associated therewith; or if the precoding information and number of layers associated with the SRI / TCI are valid, the terminal device can transmit to the SRI / TCI and / or the TRP corresponding to the precoding information and number of layers associated therewith; or if the SRI / TCI, and the precoding information and number of layers associated therewith are both valid, the terminal device can transmit to the SRI / TCI and / or the TRP corresponding to the precoding information and number of layers associated therewith. Further, if any of the SRI / TCI, the precoding information and the number of layers associated therewith are invalid, the terminal device does not transmit to the SRI / TCI and / or the TRP corresponding to the precoding information and number of layers associated therewith.

[0052] It should be noted that the TRP in this application can be associated with spatial information or vacancy direction (e.g., one or a group of beams), or the TRP can be characterized by spatial information or vacancy direction (e.g., one or a group of beams). In addition, the TRP in this application can be a functional module (e.g., implemented by software functions) or implemented by hardware. This application does not limit the implementation method of TRP.

[0053] Optionally, when the SRI / TCI is valid, the precoding information and the number of layers associated with the SRI / TCI are also valid; or when the precoding information and the number of layers are valid, the SRI / TCI associated with the precoding information and the number of layers is also valid.

[0054] Specifically, if an SRI / TCI, a precoding and a number of layers correspond to the same TRP information, then if the SRI / TCI is valid, then the precoding information and the number of layers are also valid. Similarly, if the precoding and the number of layers are valid, then the SRI / TCI is also valid.

[0055] The implementation method of the present application is described in detail below from the case where the DCI or the high-layer signaling includes at least one SRI / TCI, and the case where the DCI or the high-layer signaling includes at least one precoding information and the number of layers.

[0056] Among them, in this application, the DCI or high-level signaling includes two SRI / TCIs, the first SRI / TCI is the second SRI / TCI field, the second SRI / TCI field corresponds to TRP2, the second SRI / TCI is the first SRI / TCI field, and the first SRI / TCI field corresponds to TRP1.

[0057] In the present application, an example is taken in which DCI or high-layer signaling includes two precoding information and layer numbers, the first precoding information and layer number are the second precoding information and layer number field, the second precoding information and layer number field corresponds to TRP2, the second precoding information and layer number are the first precoding information and layer number field, and the first precoding information and layer number field corresponds to TRP1.

[0058] Embodiment 1

[0059] For codebook-based uplink PUSCH transmission, the DCI or the higher-layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0060] Optionally, the DCI or the higher layer signaling includes a first bit, where the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI is valid.

[0061] Among them, the first bit can be 1 bit, 2 bits, 3 bits, etc. The network device can determine the number of bits occupied by the first bit according to the number of SRI / TCIs. For example, when the DCI or high-level signaling includes two SRI / TCIs, the network device can use 1 bit in the DCI or high-level signaling to indicate whether the first SRI / TCI and the precoding information and number of layers associated with the first SRI / TCI are valid, or whether the second SRI / TCI and the precoding information and number of layers associated with the second SRI / TCI are valid. For another example, when the DCI or high-level signaling includes two SRI / TCIs, the network device can use one bit in the 2 bits to indicate whether the first SRI / TCI and the precoding information and number of layers associated with the first SRI / TCI are valid, and the other bit to indicate whether the second SRI / TCI and the precoding information and number of layers associated with the second SRI / TCI are valid. The embodiments of the present application are not limited to this.

[0062] It should be noted that the at least one SRI / TCI also includes a third SRI / TCI, a fourth SRI / TCI, a fifth SRI / TCI, etc. This application is described by taking the example that at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0063] Optionally, the first bit is located in the field occupied by the first SRI / TCI.

[0064] Exemplarily, the DCI or high-layer signaling includes a field occupied by the first SRI / TCI. The value of the field occupied by the first SRI / TCI can be used to determine whether the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid.

[0065] Specifically, 1 bit in the field occupied by the first SRI / TCI can be used to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid. If the value of this 1 bit is 1, it means that the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid, and the terminal device can perform PUSCH transmission to TRP2; if the value of this 1 bit is 0, it means that the first SRI / TCI and / or the precoding information and number of layers associated therewith are invalid, and the terminal device cannot perform PUSCH transmission to TRP2. Alternatively, if the value of this 1 bit in the field occupied by the first SRI / TCI is 0, it means that the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid, and the terminal device can perform PUSCH transmission to TRP2; if the value of this 1 bit is 1, it means that the first SRI / TCI and / or the precoding information and number of layers associated therewith are invalid, and the terminal device cannot perform PUSCH transmission to TRP2.

[0066] Exemplarily, the DCI or high-layer signaling includes a field occupied by the first SRI / TCI. The value of the field occupied by the first SRI / TCI can be used to determine whether the first SRI / TCI and / or the precoding information and number of layers associated therewith, as well as the second SRI / TCI and / or the precoding information and number of layers associated therewith are valid. Specifically, when using 2 bits in the field occupied by the first SRI / TCI to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith, as well as the second SRI / TCI and / or the precoding information and number of layers associated therewith are valid, it can be determined whether the first SRI / TCI and / or the precoding information and number of layers associated therewith, as well as the second SRI / TCI and / or the precoding information and number of layers associated therewith are valid according to the actual coding method used. For example, a binary encoding method is adopted, and the high bit of the 2 bits is used to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid, and the low bit of the 2 bits is used to indicate whether the second SRI / TCI and / or the precoding information and number of layers associated therewith are valid.

[0067] Exemplarily, the first bit may also be located in the field occupied by the second SRI / TCI. The specific implementation method may refer to the implementation method in which the first bit is located in the field occupied by the first SRI / TCI, and will not be repeated.

[0068] Optionally, the SRI / TCI whose corresponding index in the at least one SRI / TCI is a reserved index is invalid.

[0069] Specifically, if the index value corresponding to the value of SRI / TCI is a reserved index, it indicates that the SRI / TCI and its corresponding precoding information and number of layers are invalid. The reserved index can be an index corresponding to an invalid SRI / TCI or invalid precoding information and number of layers pre-set by a terminal device or network device or protocol or standard.

[0070] In an embodiment of the present application, the network device indicates whether the SRI / TCI and / or the precoding information and number of layers associated therewith are valid through DCI or high-level signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0071] Embodiment 2

[0072] For codebook-based uplink PUSCH transmission, the DCI or the higher-layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0073] Optionally, the DCI or the high-layer signaling includes a first SRI / TCI field, and the first SRI / TCI field is used to indicate whether the first SRI / TCI is valid.

[0074] The first SRI / TCI field is also used to indicate whether the second SRI / TCI is valid.

[0075] Specifically, the DCI or high-layer signaling may directly include the first SRI / TCI field. According to the value of the first SRI / TCI field, the terminal device may determine whether the first SRI / TCI and the precoding information and number of layers associated with the first SRI / TCI are valid, or determine whether the first SRI / TCI and the precoding information and number of layers associated with the first SRI / TCI, as well as the second SRI / TCI and the precoding information and number of layers associated with the second SRI / TCI are valid.

[0076] Exemplarily, the first SRI / TCI field can be 1 bit, 2 bits, 3 bits, etc. The network device can determine the number of bits occupied by the first SRI / TCI field based on the number of SRI / TCIs. For example, 1 bit in the field occupied by the first SRI / TCI can be used to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid; 2 bits in the field occupied by the first SRI / TCI can also be used to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith, as well as the second SRI / TCI and / or the precoding information and number of layers associated therewith are valid.

[0077] In an embodiment of the present application, the network device indicates whether the SRI / TCI and / or the precoding information and number of layers associated therewith are valid through the first SRI / TCI field in the DCI or high-level signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0078] Embodiment 3

[0079] For non-codebook based uplink PUSCH transmission, the DCI or the higher layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0080] Optionally, if there is a difference between the rank information corresponding to the at least one SRI / TCI, the first information is used to instruct the terminal device to transmit to a single TRP; if the rank information corresponding to the at least one SRI / TCI is the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

[0081] Among them, the terminal device can determine the rank information of each SRI / TCI according to the index corresponding to the value of each SRI / TCI. The rank information is used to indicate the number of spatial layers. When there is inconsistency in the rank information indicated by all SRI / TCIs ​​in the at least one SRI / TCI, it indicates that the terminal device is transmitting to a single TRP; when the rank information indicated by all SRI / TCIs ​​in the at least one SRI / TCI is the same, it indicates that the terminal device is transmitting to multiple TRPs, and all SRI / TCIs ​​included in the DCI or high-level signaling are valid. The terminal device can perform PUSCH transmission to the TRPs corresponding to all SRI / TCIs ​​included in the DCI or high-level signaling.

[0082] Exemplarily, when there is a difference between the rank information corresponding to at least one SRI / TCI, and the first information is used to instruct the terminal device to transmit to a single TRP, the terminal device may default to the first SRI / TCI or the second SRI / TCI included in the DCI or high-level signaling as valid. For example, the terminal device may use the precoding method and uplink transmission resources corresponding to the first SRI / TCI to perform PUSCH transmission to TRP2, or use the precoding method and uplink transmission resources corresponding to the second SRI / TCI to perform PUSCH transmission to TRP1.

[0083] Exemplarily, when there is a difference between the rank information corresponding to at least one SRI / TCI, and the first information is used to instruct the terminal device to transmit to a single TRP, the terminal device may default to the SRI / TCI with the smallest or largest rank number in the at least one SRI / TCI as valid, and the rank number is the specific value of the rank information. For example, if the rank number corresponding to the first SRI / TCI is 1, and the rank number corresponding to the second SRI / TCI is 2, when the SRI / TCI with the smallest default rank number is valid, the terminal device confirms that the first SRI / TCI is valid; when the SRI / TCI with the largest default rank number is valid, the terminal device confirms that the second SRI / TCI is valid.

[0084] In an embodiment of the present application, the network device uses the rank information corresponding to SRI / TCI in DCI or high-level signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0085] Embodiment 4

[0086] For non-codebook based uplink PUSCH transmission, the DCI or the higher layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0087] Optionally, the SRI / TCI whose corresponding index in the at least one SRI / TCI is a reserved index is invalid.

[0088] Specifically, if the index value corresponding to the value of SRI / TCI is a reserved index, it indicates that the SRI / TCI is invalid, and the SRS resource indication corresponding to the SRI / TCI is invalid. The reserved index can be the index corresponding to the invalid SRI / TCI preset by the terminal device or network device or protocol or standard.

[0089] Exemplarily, if the value of the first SRI / TCI is a reserved index, it indicates that the first SRI / TCI is invalid and the terminal device cannot perform PUSCH transmission to TRP2.

[0090] Exemplarily, if the value of the first SRI / TCI is a reserved index, it indicates that the first SRI / TCI or the second SRI / TCI is invalid, and the terminal device cannot perform PUSCH transmission to TRP2 or TRP1.

[0091] In an embodiment of the present application, the network device indicates whether the SRI / TCI is valid by using the value of SRI / TCI in DCI or high-level signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0092] Embodiment 5

[0093] For non-codebook based uplink PUSCH transmission, the DCI or the higher layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0094] In a possible example, the network device may also send the maximum rank number to the terminal device through high-layer signaling.

[0095] Optionally, when the maximum number of ranks is 1, the bit width of the field occupied by the first SRI / TCI is greater than the bit width of the field occupied by the second SRI / TCI. For example, if the field occupied by the second SRI / TCI is 1 bit, the field occupied by the first SRI / TCI is greater than 1 bit.

[0096] Furthermore, the highest or lowest bit of the field occupied by the first SRI / TCI is used to indicate that the first SRI / TCI and / or the second SRI / TCI are invalid.

[0097] Exemplarily, the most significant 1 bit or the least significant 1 bit of the field occupied by the first SRI / TCI is used to indicate whether the first SRI / TCI is valid.

[0098] Exemplarily, the most significant 2 bits or the least significant 2 bits of the field occupied by the first SRI / TCI are used to indicate whether the first SRI / TCI and the second SRI / TCI are valid.

[0099] Exemplarily, if the value of the first SRI / TCI is a reserved index, the first SRI / TCI or the second SRI / TCI is invalid, indicating that the terminal device cannot perform PUSCH transmission to TRP2 or TRP1.

[0100] Optionally, when the maximum number of ranks is greater than 1 (such as 2, 3, 4, etc.), the bit width of the field occupied by the first SRI / TCI is greater than the bit width of the field occupied by the second SRI / TCI.

[0101] Among them, if the bit width of the field occupied by the first SRI / TCI is greater than the bit width of the field occupied by the second SRI / TCI, and the value of the first SRI / TCI is a reserved index, the first SRI / TCI or the second SRI / TCI is invalid, indicating that the terminal device cannot perform PUSCH transmission to TRP2 or TRP1.

[0102] The rank information corresponding to the second SRI / TCI is used to indicate the rank information of the first SRI / TCI and the rank information of the second SRI / TCI.

[0103] Specifically, when the first SRI / TCI cannot provide valid rank information (for example, the first SRI / TCI has no corresponding rank information, the rank information corresponding to the first SRI / TCI is invalid, or the protocol stipulates that the rank information corresponding to the first SRI / TCI is invalid, etc.), the rank information indicated by the second SRI / TCI is also applicable to the rank information of the first SRI / TCI.

[0104] Optionally, when the maximum number of ranks is greater than 1 (such as 2, 3, 4, etc.), the bit width of the field occupied by the first SRI / TCI is equal to the bit width of the field occupied by the second SRI / TCI.

[0105] The highest or lowest bit of the field occupied by the first SRI / TCI is used to indicate that the first SRI / TCI and / or the second SRI / TCI are invalid.

[0106] Exemplarily, the most significant 1 bit or the least significant 1 bit of the field occupied by the first SRI / TCI is used to indicate whether the first SRI / TCI is valid.

[0107] Further, when the first SRI / TCI cannot provide valid rank information, the rank information indicated by the second SRI / TCI is also applicable to the rank information of the first SRI / TCI.

[0108] Exemplarily, if the value of the first SRI / TCI is a reserved index, the first SRI / TCI or the second SRI / TCI is invalid, indicating that the terminal device cannot perform PUSCH transmission to TRP2 or TRP1.

[0109] In an embodiment of the present application, the network device indicates whether the SRI / TCI is valid by using the value of SRI / TCI in DCI or high-level signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0110] Embodiment 6

[0111] For non-codebook based uplink PUSCH transmission, the DCI or the higher layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0112] Optionally, the DCI or the high-layer signaling includes a first SRI / TCI field, and the first SRI / TCI field is used to indicate whether the first SRI / TCI is valid.

[0113] The first SRI / TCI field is also used to indicate whether the second SRI / TCI is valid.

[0114] Specifically, the DCI or high-level signaling may directly include the first SRI / TCI field. According to the value of the first SRI / TCI field, the terminal device may determine whether the first SRI / TCI is valid, or determine whether the first SRI / TCI and the second SRI / TCI are valid. Exemplarily, the first SRI / TCI field may be 1 bit, 2 bits, 3 bits, etc. The network device may determine the number of bits occupied by the first SRI / TCI field according to the number of SRI / TCIs. For example, 1 bit in the field occupied by the first SRI / TCI is used to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith are valid; 2 bits in the field occupied by the first SRI / TCI are used to indicate whether the first SRI / TCI and / or the precoding information and number of layers associated therewith, and the second SRI / TCI and / or the precoding information and number of layers associated therewith are valid.

[0115] In an embodiment of the present application, the network device indicates whether the terminal device is transmitting to a single TRP or to multiple TRPs by indicating whether the first SRI / TCI in the DCI or high-level signaling is valid, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0116] Embodiment 7

[0117] For codebook-based uplink PUSCH transmission, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers. Optionally, the precoding information and a number of layers whose corresponding index is a reserved index in the at least one precoding information and a number of layers are invalid.

[0118] Specifically, if the index value corresponding to the value of the precoding information and the number of layers is a reserved index, it indicates that the precoding information and the number of layers are invalid, and the precoding information and the number of layers and / or the SRI / TCI associated therewith are invalid. The reserved index can be an index corresponding to the invalid precoding information and the number of layers or the invalid SRI / TCI pre-set by the terminal device or network device or the protocol or standard.

[0119] It should be noted that the at least one SRI / TCI also includes third precoding information and number of layers, fourth precoding information and number of layers, fifth precoding information and number of layers, etc. This application takes at least one SRI / TCI including first precoding information and number of layers and second precoding information and number of layers as an example for explanation.

[0120] In an embodiment of the present application, the network device indicates whether the precoding information and the number of layers and / or the SRI / TCI associated therewith are valid by using the values ​​of the precoding information and the number of layers in DCI or high-level signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices between single TRP transmission and multiple TRP transmission.

[0121] Embodiment 8

[0122] For codebook-based uplink PUSCH transmission, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers.

[0123] Optionally, if there is a difference between the at least one precoding information and the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to a single TRP; if the at least one precoding information and the rank information corresponding to the number of layers are the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

[0124] Among them, the terminal device can determine the rank information of each precoding information and the number of layers according to the index corresponding to the value of each precoding information and the number of layers. The rank information is used to indicate the number of spatial layers. When there is inconsistency in the rank information indicated by all the precoding information and the number of layers in the at least one precoding information and the number of layers, it indicates that the terminal device is transmitting to a single TRP; when the rank information indicated by all the precoding information and the number of layers in the at least one precoding information and the number of layers are the same, it indicates that the terminal device is transmitting to multiple TRPs, and all the precoding information and the number of layers included in the DCI or high-level signaling and / or the SRI / TCI associated therewith are valid, and the terminal device can perform PUSCH transmission to the TRP corresponding to all the precoding information and the number of layers included in the DCI or high-level signaling.

[0125] Exemplarily, when there is a difference between at least one precoding information and the rank information corresponding to the number of layers, and the first information is used to instruct the terminal device to transmit to a single TRP, the terminal device may default to the first precoding information and the number of layers and / or the SRI / TCI associated therewith included in the DCI or high-layer signaling being valid, or the second precoding information and the number of layers and / or the SRI / TCI associated therewith being valid. For example, the terminal device may use the precoding method corresponding to the first precoding information and the number of layers to perform PUSCH transmission to TRP2, or use the precoding method corresponding to the second precoding information and the number of layers to perform PUSCH transmission to TRP1.

[0126] Exemplarily, when there is a difference between the rank information corresponding to at least one precoding information and the number of layers, and the first information is used to instruct the terminal device to transmit to a single TRP, the terminal device may default to the minimum or maximum precoding information and number of layers corresponding to the at least one precoding information and number of layers and / or the SRI / TCI associated therewith as valid, and the rank number is the specific value of the rank information. For example, if the rank number corresponding to the first precoding information and the number of layers is 1, and the rank number corresponding to the second precoding information and the number of layers is 2, when the precoding information and the number of layers with the minimum default rank number and the SRI / TCI associated therewith are valid, the terminal device confirms that the first precoding information and the number of layers and the SRI / TCI associated therewith are valid; when the precoding information and the number of layers with the maximum default rank number and the SRI / TCI associated therewith are valid, the terminal device confirms that the second precoding information and the number of layers and the SRI / TCI associated therewith are valid.

[0127] In an embodiment of the present application, the network device indicates whether the terminal device is transmitting to a single TRP or to multiple TRPs through the precoding information and rank information corresponding to the number of layers in the DCI or high-layer signaling, thereby providing a technical solution that supports dynamic switching of the terminal device to a single TRP transmission and multiple TRP transmissions.

[0128] Embodiment 9

[0129] For codebook-based uplink PUSCH transmission, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers.

[0130] In a possible example, when using Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM), the network device may also send a transform precoder (transformPrecoder) to the terminal device through high-layer signaling.

[0131] Optionally, the transformPrecoder field configured in the high-layer signaling is a first value, and the DCI or the high-layer signaling includes a second bit, and the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

[0132] The first value is a value corresponding to when the transformPrecoder field is in an enabled state, for example, the transformPrecoder field is enabled, and the second bit is 1 bit. Specifically, the DCI or high-layer signaling includes 1 bit, and the 1 bit is used to indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers are valid.

[0133] Optionally, the transformPrecoder field configured in the high-layer signaling is a second value, and the DCI or the high-layer signaling includes a second bit, and the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

[0134] Among them, the second value is the value corresponding to when the transformPrecoder field is in a disabled state, for example, the transformPrecoder field is disabled, the second bit can be 1 bit, 2 bits, 3 bits, etc., and the network device can determine the second bit according to the precoding information and the number of layers.

[0135] It should be noted that the transform precoding field specified in the 5G standard may be transformPrecoder, but the name of the transform precoding field specified in other standards is also applicable to this application, that is, this application does not limit the name of the transform precoding field.

[0136] Exemplarily, the second bit is 1 bit, and the second bit may indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers are valid.

[0137] Exemplarily, the second bit is 2 bits, and the second bit can indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers, the second precoding information and the number of layers and the SRI / TCI associated with the second precoding information and the number of layers are valid. For example, one bit of the 2 bits is used to indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers are valid, and the other bit is used to indicate whether the second precoding information and the number of layers and the SRI / TCI associated with the second precoding information and the number of layers are valid.

[0138] Optionally, the precoding information and the number of layers whose corresponding index in the at least one precoding information and the number of layers is a reserved index are invalid.

[0139] Specifically, if the index value corresponding to the value of the precoding information and the number of layers is a reserved index, it indicates that the precoding information and the number of layers and their corresponding SRI / TCI are invalid. The reserved index can be an invalid SRI / TCI or an index corresponding to invalid precoding information and the number of layers pre-set by the terminal device or network device.

[0140] Optionally, the rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers.

[0141] Specifically, when the first precoding information and the number of layers cannot provide valid rank information (for example, the first precoding information and the number of layers have no corresponding rank information, the rank information corresponding to the first precoding information and the number of layers is invalid, or the protocol stipulates that the rank information corresponding to the first precoding information and the number of layers is invalid, etc.), then the rank information indicated by the second precoding information and the number of layers is also applicable to the rank information of the first precoding information and the number of layers, that is, the rank information of the first precoding information and the number of layers is the same as the second precoding information and the rank information of the number of layers.

[0142] In an embodiment of the present application, the network device indicates whether the precoding information and the number of layers and / or the SRI / TCI associated therewith are valid through DCI or high-layer signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices to a single TRP transmission and to multiple TRP transmissions.

[0143] Embodiment 10

[0144] For codebook-based uplink PUSCH transmission, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers.

[0145] In a possible example, the network device may also send the codebook type to the terminal device through high-layer signaling.

[0146] Among them, the terminal device can report its own number of antenna ports and antenna port coherence characteristic capabilities to the network device, so that the network device determines the optional codebook set corresponding to the terminal device according to the number of antenna ports and antenna port coherence characteristic capabilities of the terminal device. After the network device determines the codebook set, it sends the antenna coherence characteristic capability corresponding to the codebook set to the terminal device, so that the terminal device determines the codebook set.

[0147] In the specific implementation, the antenna port coherence characteristic capabilities of the terminal device include three types: full coherence (fullCoherent), indicating that the transmitting antenna ports supported by the terminal device are coherent; non-coherence (non-coherence), indicating that the transmitting antenna ports supported by the terminal device are not coherent; partial coherence (partial-coherence), indicating that the coherence relationship between the transmitting antenna ports supported by the terminal device is divided into two groups, the antenna ports within the group are fully coherent, and the antenna ports between groups are non-coherent.

[0148] Optionally, the high-layer signaling configures the codebook type of the terminal device to be fullyAndPartialAndNonCoherent.

[0149] Among them, when the codebook type of the terminal device is configured as fullyAndPartialAndNonCoherent, the terminal device supports coherence between transmitting antenna ports when performing PUSCH transmission.

[0150] Optionally, the precoding information and the number of layers whose corresponding index in the at least one precoding information and the number of layers is a reserved index are invalid.

[0151] Specifically, if the index value corresponding to the value of the precoding information and the number of layers is a reserved index, it indicates that the precoding information and the number of layers and / or the SRI / TCI associated therewith are invalid. The reserved index can be an index corresponding to an invalid SRI / TCI or invalid precoding information and the number of layers pre-set by a terminal device or a network device or a protocol or a standard.

[0152] Optionally, the high-layer signaling configures the codebook type of the terminal device to be partialAndNonCoherent or nonCoherent.

[0153] Among them, when the codebook type of the terminal device is configured as partialAndNonCoherent, the terminal device supports dividing the coherence relationship between the transmitting antenna ports into 2 groups when performing PUSCH transmission, where the antenna ports within the group are fully coherent and the antenna ports between the groups are irrelevant.

[0154] Among them, when the codebook type of the terminal device is configured as nonCoherent, the terminal device supports no coherence between transmitting antenna ports when performing PUSCH transmission.

[0155] Optionally, the DCI or the high-layer signaling includes a second bit, and the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

[0156] Among them, the second bit can be 1 bit, 2 bits, 3 bits, etc., and the network device can determine the second bit according to the precoding information and the number of layers. Exemplarily, the second bit is 1 bit, and the second bit can indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers are valid. Exemplarily, the second bit is 2 bits, and the second bit can indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers, the second precoding information and the number of layers and the SRI / TCI associated with the second precoding information and the number of layers are valid.

[0157] Further, when the first precoding information and the number of layers cannot provide valid rank information, the rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers, that is, the rank information of the first precoding information and the number of layers is the same as the rank information of the second precoding information and the number of layers.

[0158] It should be noted that the codebook types specified in the 5G standard may be fullyAndPartialAndNonCoherent, partialAndNonCoherent and nonCoherent, but codebook types with different names but the same functions specified in other standards are also applicable to this application, that is, this application does not limit the name of the codebook type.

[0159] In an embodiment of the present application, the network device indicates whether the precoding information and the number of layers and / or the SRI / TCI associated therewith are valid through DCI or high-layer signaling to indicate whether the terminal device is transmitting to a single TRP or to multiple TRPs, thereby providing a technical solution that supports dynamic switching of terminal devices to a single TRP transmission and to multiple TRP transmissions.

[0160] Embodiment 11

[0161] For codebook-based uplink PUSCH transmission, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers.

[0162] Optionally, the DCI or the high-layer signaling includes a second bit, and the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

[0163] Among them, the second bit can be 1 bit, 2 bits, 3 bits, etc., and the network device can determine the second bit according to the precoding information and the number of layers. Exemplarily, the second bit is 1 bit, and the second bit can indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers are valid. Exemplarily, the second bit is 2 bits, and the second bit can indicate whether the first precoding information and the number of layers and the SRI / TCI associated with the first precoding information and the number of layers, the second precoding information and the number of layers and the SRI / TCI associated with the second precoding information and the number of layers are valid.

[0164] Furthermore, the second bit is located in the field occupied by the first precoding information and the number of layers, or in the field occupied by the SRI / TCI associated with the first precoding information and the number of layers.

[0165] Among them, the DCI or high-layer signaling includes the field occupied by the first precoding information and the number of layers, or the field occupied by the SRI / TCI associated with the first precoding information and the number of layers. Through the value of the field occupied by the first precoding information and the number of layers, or the field occupied by the SRI / TCI associated with the first precoding information and the number of layers, it can be determined whether the first precoding information and the number of layers and / or the SRI / TCI associated therewith, and / or the second precoding information and the number of layers and / or the SRI / TCI associated therewith are valid.

[0166] Exemplarily, 1 bit in the field occupied by the first precoding information and the number of layers, or in the field occupied by the SRI / TCI associated with the first precoding information and the number of layers, can be used to indicate whether the first precoding information and the number of layers and / or the SRI / TCI associated therewith are valid. For example, if the value of the 1 bit is 1, it indicates that the first precoding information and the number of layers and / or the SRI / TCI associated therewith are valid; if the value of the 1 bit is 0, it indicates that the first precoding information and the number of layers and / or the SRI / TCI associated therewith are invalid. Alternatively, if the value of the 1 bit is 0, it indicates that the first precoding information and the number of layers and / or the SRI / TCI associated therewith are valid; if the value of the 1 bit is 1, it indicates that the first precoding information and the number of layers and / or the SRI / TCI associated therewith are invalid.

[0167] Exemplarily, the field occupied by the first precoding information and the number of layers, or the 2 bits in the field occupied by the SRI / TCI associated with the first precoding information and the number of layers can be used to indicate whether the first precoding information and the number of layers and / or the SRI / TCI associated therewith, and the second precoding information and the number of layers and / or the SRI / TCI associated therewith are valid. Specifically, whether the first precoding information and the number of layers and / or the SRI / TCI associated therewith, and the second precoding information and the number of layers and / or the SRI / TCI associated therewith are valid can be determined according to the actual coding method used. For example, a binary coding method is used, and the high bit of the 2 bits is used to indicate whether the first precoding information and the number of layers and / or the SRI / TCI associated therewith are valid, and the low bit of the 2 bits is used to indicate whether the second precoding information and the number of layers and / or the SRI / TCI associated therewith are valid.

[0168] Optionally, the rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers.

[0169] Specifically, when the first precoding information and the number of layers cannot provide valid rank information, the rank information indicated by the second precoding information and the number of layers is also applicable to the rank information of the first precoding information and the number of layers, that is, the rank information of the first precoding information and the number of layers is the same as the second precoding information and the rank information of the number of layers.

[0170] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that in order to realize the above functions, the network device includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment provided in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0171] See also Figure 3 , Figure 3 3 is a functional unit composition block diagram of an indication device 300 provided in an embodiment of the present application. The device 300 can be applied to a terminal device, and the device 300 can also be applied to a network device. The device 300 includes a transceiver unit 310 .

[0172] In a possible implementation, the apparatus 300 is used to execute various processes and steps corresponding to the terminal device in the above indication method.

[0173] The transceiver unit 310 is used to receive first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0174] Optionally, the first information is downlink control information DCI or high-layer signaling.

[0175] Optionally, the transmission mode of the terminal device is non-codebook based PUSCH transmission.

[0176] Optionally, the transmission mode of the terminal device is codebook-based PUSCH transmission.

[0177] Optionally, the DCI or the higher-layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0178] Optionally, the DCI or the higher layer signaling includes a first bit, where the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI is valid.

[0179] Optionally, the first bit is located in the field occupied by the first SRI / TCI.

[0180] Optionally, the SRI / TCI whose corresponding index in the at least one SRI / TCI is a reserved index is invalid.

[0181] Optionally, the DCI or the high-layer signaling includes a first SRI / TCI field, and the first SRI / TCI field is used to indicate whether the first SRI / TCI is valid.

[0182] Optionally, the first SRI / TCI field is also used to indicate whether the second SRI / TCI is valid.

[0183] Optionally, if there is a difference between the rank information corresponding to the at least one SRI / TCI, the first information is used to instruct the terminal device to transmit to a single TRP.

[0184] Optionally, the first SRI / TCI or the second SRI / TCI is valid.

[0185] Optionally, the SRI / TCI corresponding to the smallest or largest number of ranks among the at least one SRI / TCI is valid.

[0186] Optionally, if the rank information corresponding to at least one SRI / TCI is the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

[0187] Optionally, the bit width of the field occupied by the first SRI / TCI is greater than or equal to the bit width of the field occupied by the second SRI / TCI.

[0188] Optionally, the highest or lowest bit of the field occupied by the first SRI / TCI is used to indicate that the first SRI / TCI and / or the second SRI / TCI are invalid.

[0189] Optionally, the rank information corresponding to the second SRI / TCI is used to indicate the rank information of the first SRI / TCI and the rank information of the second SRI / TCI.

[0190] Optionally, if the corresponding index of the first SRI / TCI is a reserved index, the first SRI / TCI and / or the second SRI / TCI are invalid.

[0191] Optionally, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers.

[0192] Optionally, the transformPrecoder field configured in the high-level signaling is a first value.

[0193] Optionally, the transformPrecoder field configured in the high-level signaling is a second value.

[0194] Optionally, the high-layer signaling configures the codebook type of the terminal device to be fullyAndPartialAndNonCoherent.

[0195] Optionally, the high-layer signaling configures the codebook type of the terminal device to be PartialAndNonCoherent or NonCoherent.

[0196] Optionally, the DCI or the high-layer signaling includes a second bit, and the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

[0197] Optionally, the precoding information and the number of layers whose corresponding index in the at least one precoding information and the number of layers is a reserved index are invalid.

[0198] Optionally, the rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers.

[0199] Optionally, if there is a difference between the at least one precoding information and the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to a single TRP.

[0200] Optionally, the first precoding information and number of layers, or the second precoding information and number of layers are valid.

[0201] Optionally, the precoding information and number of layers corresponding to the smallest or largest rank number among the at least one precoding information and number of layers is valid.

[0202] Optionally, if the at least one precoding information and the rank information corresponding to the number of layers are the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

[0203] In another possible implementation, the apparatus 300 is used to execute various processes and steps corresponding to the network device in the above indication method.

[0204] The transceiver unit 310 is used to send first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0205] Optionally, the first information is downlink control information DCI or high-layer signaling.

[0206] Optionally, the DCI or the higher-layer signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI.

[0207] Optionally, the DCI or the higher layer signaling includes a first bit, where the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI is valid.

[0208] Optionally, the first bit is located in the field occupied by the first SRI / TCI.

[0209] Optionally, the SRI / TCI whose corresponding index in the at least one SRI / TCI is a reserved index is invalid.

[0210] Optionally, the DCI or the high-layer signaling includes a first SRI / TCI field, and the first SRI / TCI field is used to indicate whether the first SRI / TCI is valid.

[0211] Optionally, the first SRI / TCI field is also used to indicate whether the second SRI / TCI is valid.

[0212] Optionally, if there is a difference between the rank information corresponding to the at least one SRI / TCI, the first information is used to instruct the terminal device to transmit to a single TRP.

[0213] Optionally, the first SRI / TCI or the second SRI / TCI is valid.

[0214] Optionally, the SRI / TCI corresponding to the smallest or largest number of ranks among the at least one SRI / TCI is valid.

[0215] Optionally, if the rank information corresponding to at least one SRI / TCI is the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

[0216] Optionally, the bit width of the field occupied by the first SRI / TCI is greater than or equal to the bit width of the field occupied by the second SRI / TCI.

[0217] Optionally, the highest or lowest bit of the field occupied by the first SRI / TCI is used to indicate that the first SRI / TCI and / or the second SRI / TCI are invalid.

[0218] Optionally, the rank information corresponding to the second SRI / TCI is used to indicate the rank information of the first SRI / TCI and the rank information of the second SRI / TCI.

[0219] Optionally, if the corresponding index of the first SRI / TCI is a reserved index, the first SRI / TCI and / or the second SRI / TCI are invalid.

[0220] Optionally, the DCI or the high-layer signaling includes at least one precoding information and a number of layers, and the at least one precoding information and a number of layers include first precoding information and a number of layers, and second precoding information and a number of layers.

[0221] Optionally, the transformPrecoder field configured in the high-level signaling is a first value.

[0222] Optionally, the transformPrecoder field configured in the high-level signaling is a second value.

[0223] Optionally, the high-layer signaling configures the codebook type of the terminal device to be fullyAndPartialAndNonCoherent.

[0224] Optionally, the high-layer signaling configures the codebook type of the terminal device to be PartialAndNonCoherent or NonCoherent.

[0225] Optionally, the DCI or the high-layer signaling includes a second bit, and the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

[0226] Optionally, the precoding information and the number of layers whose corresponding index in the at least one precoding information and the number of layers is a reserved index are invalid.

[0227] Optionally, the rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers.

[0228] Optionally, if there is a difference between the at least one precoding information and the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to a single TRP.

[0229] Optionally, the first precoding information and number of layers, or the second precoding information and number of layers are valid.

[0230] Optionally, the precoding information and number of layers corresponding to the smallest or largest rank number among the at least one precoding information and number of layers is valid.

[0231] Optionally, if the at least one precoding information and the rank information corresponding to the number of layers are the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

[0232] It can be understood that the functions of each program module of the indicating device of the embodiment of the present application can be specifically implemented according to the method in the above method embodiment, and its specific implementation process can refer to the relevant description of the above method embodiment, which will not be repeated here.

[0233] It should be understood that the device 300 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 300 can be specifically the terminal device and the network device in the above-mentioned embodiment, and the device 300 can be used to execute the various processes and / or steps corresponding to the terminal device and the network device in the above-mentioned method embodiment. To avoid repetition, it will not be repeated here.

[0234] The apparatus 300 of each of the above schemes has the function of implementing the corresponding steps performed by the terminal device and the network device in the above method; the function can be implemented by hardware, or by hardware executing the corresponding software. The hardware or software includes one or more modules corresponding to the above functions; the transceiver unit 310 can be replaced by a transmitter and a receiver, respectively performing the transceiver operations and related processing operations in each method embodiment.

[0235] In the embodiments of the present application, Figure 3 The device 300 in the embodiment may also be a chip, a chip module, a UE or a chip system, for example, a system on chip (SoC). Correspondingly, the transceiver unit 310 may be a transceiver circuit of the chip, which is not limited here.

[0236] See also Figure 4 , Figure 4 An electronic device provided by an embodiment of the present application includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs; the one or more programs are stored in the memories and are configured to be executed by the one or more processors.

[0237] In a possible implementation, the electronic device is a terminal device, and the program includes instructions for executing the following steps:

[0238] Receive first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0239] In another possible implementation, the electronic device is a network device, and the program includes instructions for executing the following steps:

[0240] Send first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0241] Among them, all relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0242] It should be understood that the above-mentioned memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0243] In the embodiment of the present application, the processor of the above-mentioned device may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0244] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software units in a processor for execution. The software unit can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor executes the instructions in the memory, and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0245] An embodiment of the present application provides a chip, which is used to obtain first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0246] An embodiment of the present application provides a chip module, including a transceiver component and a chip, wherein the chip is used to receive first information through the transceiver component, and the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0247] An embodiment of the present application provides a chip, which is used to output first information, where the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0248] An embodiment of the present application provides a chip module, including a transceiver component and a chip, wherein the chip is used to send first information through the transceiver component, and the first information is used to instruct the terminal device to transmit to a single TRP or the terminal device to transmit to multiple TRPs.

[0249] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method recorded in the above method embodiments.

[0250] The present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps of any method described in the above method embodiment. The computer program product may be a software installation package.

[0251] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0252] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0253] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0254] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0255] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0256] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, server or TRP, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0257] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the relevant hardware through a program, and the program may be stored in a computer-readable memory, which may include a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0258] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for indicating, characterized in that: Applied to a terminal device, the method comprises: Receive first information, where the first information is used to instruct the terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is downlink control information DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, where the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

2. The method according to claim 1, characterized in that The transmission mode of the terminal device is non-codebook based PUSCH transmission.

3. The method according to claim 1, characterized in that The transmission mode of the terminal device is codebook-based PUSCH transmission.

4. The method according to claim 1, characterized in that: The first bit is located in the field occupied by the first SRI / TCI.

5. The method according to claim 1, characterized in that The SRI / TCI whose corresponding index in the at least one SRI / TCI is a reserved index is invalid.

6. The method according to claim 1, characterized in that The DCI or the higher layer signaling includes a first SRI / TCI field, where the first SRI / TCI field is used to indicate whether the first SRI / TCI is valid.

7. The method according to claim 6, characterized in that The first SRI / TCI field is also used to indicate whether the second SRI / TCI is valid.

8. The method according to claim 1, characterized in that If there is a difference between the rank information corresponding to the at least one SRI / TCI, the first information is used to instruct the terminal device to transmit to a single TRP.

9. The method according to claim 8, characterized in that The first SRI / TCI or the second SRI / TCI is valid.

10. The method according to claim 8, characterized in that The SRI / TCI corresponding to the smallest or largest number of ranks among the at least one SRI / TCI is valid.

11. The method according to claim 1, characterized in that: If the rank information corresponding to the at least one SRI / TCI is the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

12. The method according to claim 1, characterized in that The bit width of the field occupied by the first SRI / TCI is greater than or equal to the bit width of the field occupied by the second SRI / TCI.

13. The method according to claim 12, characterized in that The highest or lowest bit of the field occupied by the first SRI / TCI is used to indicate that the first SRI / TCI and / or the second SRI / TCI are invalid.

14. The method according to claim 12 or 13, characterized in that The rank information corresponding to the second SRI / TCI is used to indicate the rank information of the first SRI / TCI and the rank information of the second SRI / TCI.

15. The method according to claim 5 or 12, characterized in that: If the corresponding index of the first SRI / TCI is a reserved index, the first SRI / TCI and / or the second SRI / TCI are invalid.

16. The method according to claim 3, characterized in that The DCI or the high-layer signaling includes at least one precoding information and a layer number, and the at least one precoding information and a layer number includes first precoding information and a layer number, and second precoding information and a layer number.

17. The method according to claim 16, characterized in that The transformPrecoder field configured in the high-level signaling is a first value.

18. The method according to claim 16, characterized in that The transformPrecoder field configured in the high-level signaling is the second value.

19. The method according to claim 16, characterized in that The high-level signaling configures the codebook type of the terminal device to be fullyAndPartialAndNonCoherent.

20. The method according to claim 16, characterized in that The high-layer signaling configures the codebook type of the terminal device to be partialAndNonCoherent or nonCoherent.

21. The method according to any one of claims 16 to 18 and 20, characterized in that: The DCI or the high-layer signaling includes a second bit, where the second bit is used to indicate whether the first precoding information and the number of layers, and / or the second precoding information and the number of layers are valid.

22. The method according to any one of claims 16, 18 and 19, characterized in that: The precoding information and the number of layers whose corresponding index in the at least one precoding information and the number of layers is a reserved index are invalid.

23. The method according to any one of claims 16 to 20, characterized in that: The rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers.

24. The method according to claim 16, characterized in that If there is a difference between the at least one precoding information and the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to a single TRP.

25. The method according to claim 24, characterized in that The first precoding information and the number of layers, or the second precoding information and the number of layers are valid.

26. The method according to claim 24, characterized in that The precoding information and the number of layers corresponding to the smallest or largest rank number among the at least one precoding information and the number of layers are valid.

27. The method according to claim 16, characterized in that If the at least one precoding information and the rank information corresponding to the number of layers are the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

28. A method of indicating, characterized in that: Applied to a network device, the method comprises: Sending first information, wherein the first information is used to instruct a terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, and the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

29. The method according to claim 28, characterized in that The first bit is located in the field occupied by the first SRI / TCI.

30. The method according to claim 28, characterized in that The SRI / TCI whose corresponding index in the at least one SRI / TCI is a reserved index is invalid.

31. The method according to claim 28, characterized in that The DCI or the higher layer signaling includes a first SRI / TCI field, where the first SRI / TCI field is used to indicate whether the first SRI / TCI is valid.

32. The method according to claim 31, characterized in that The first SRI / TCI field is also used to indicate whether the second SRI / TCI is valid.

33. The method according to claim 28, characterized in that If there is a difference between the rank information corresponding to the at least one SRI / TCI, the first information is used to instruct the terminal device to transmit to a single TRP.

34. The method according to claim 33, characterized in that The first SRI / TCI or the second SRI / TCI is valid.

35. The method according to claim 33, characterized in that The SRI / TCI corresponding to the smallest or largest number of ranks among the at least one SRI / TCI is valid.

36. The method according to claim 28, characterized in that If the rank information corresponding to the at least one SRI / TCI is the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

37. The method according to claim 28, characterized in that The bit width of the field occupied by the first SRI / TCI is greater than or equal to the bit width of the field occupied by the second SRI / TCI.

38. The method according to claim 37, characterized in that The highest or lowest bit of the field occupied by the first SRI / TCI is used to indicate that the first SRI / TCI and / or the second SRI / TCI are invalid.

39. The method according to claim 37 or 38, characterized in that The rank information corresponding to the second SRI / TCI is used to indicate the rank information of the first SRI / TCI and the rank information of the second SRI / TCI.

40. The method according to claim 35 or 37, characterized in that If the corresponding index of the first SRI / TCI is a reserved index, the first SRI / TCI or the second SRI / TCI is invalid.

41. The method according to claim 28, characterized in that The DCI or the high-layer signaling includes at least one precoding information and a layer number, and the at least one precoding information and a layer number includes first precoding information and a layer number, and second precoding information and a layer number.

42. The method according to claim 41, characterized in that The transformPrecoder field configured in the high-level signaling is a first value.

43. The method according to claim 41, characterized in that The transformPrecoder field configured in the high-level signaling is the second value.

44. The method according to claim 41, characterized in that The high-level signaling configures the codebook type of the terminal device to be fullyAndPartialAndNonCoherent.

45. The method according to claim 43, characterized in that The high-layer signaling configures the codebook type of the terminal device to be partialAndNonCoherent or nonCoherent.

46. ​​The method according to any one of claims 41 to 43 and 45, characterized in that: The DCI or the high-layer signaling includes a second bit, where the second bit is used to indicate whether the first precoding information and the number of layers are valid.

47. The method according to any one of claims 41, 43, and 44, characterized in that: The precoding information and the number of layers whose corresponding index in the at least one precoding information and the number of layers is a reserved index are invalid.

48. The method according to any one of claims 41 to 45, characterized in that The rank information corresponding to the second precoding information and the number of layers is used to indicate the rank information of the first precoding information and the number of layers, and the rank information of the second precoding information and the number of layers.

49. The method according to claim 41, characterized in that If there is a difference between the at least one precoding information and the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to a single TRP.

50. The method according to claim 49, characterized in that The first precoding information and the number of layers, or the second precoding information and the number of layers are valid.

51. The method according to claim 49, characterized in that The precoding information and the number of layers corresponding to the smallest or largest rank number among the at least one precoding information and the number of layers are valid.

52. The method according to claim 41, characterized in that If the at least one precoding information and the rank information corresponding to the number of layers are the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

53. An indicating device, characterized in that: Applied to a terminal device, the device comprises: A transceiver unit is used to receive first information, where the first information is used to instruct the terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, where the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

54. An indicating device, characterized in that: Applied to network equipment, the device comprises: A transceiver unit is used to send first information, wherein the first information is used to instruct a terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, and the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

55. A chip, characterized in that: The chip is used to obtain first information, and the first information is used to instruct the terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, and the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

56. A chip module, characterized in that: Including transceiver components and chips, among which, The chip is used to receive first information through the transceiver component, and the first information is used to instruct the terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, and the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

57. A chip, characterized in that: The chip is used to output first information, and the first information is used to instruct the terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, and the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

58. A chip module, characterized in that: Including transceiver components and chips, among which, The chip is used to send first information through the transceiver component, and the first information is used to instruct the terminal device to perform uplink transmission to a single TRP or the terminal device to perform uplink transmission to multiple TRPs; the first information is DCI or high-level signaling; the DCI or the high-level signaling includes at least one SRS resource indication or transmission configuration indication SRI / TCI, and the at least one SRI / TCI includes a first SRI / TCI and a second SRI / TCI; the DCI or the high-level signaling includes a first bit, and the first bit is used to indicate whether the first SRI / TCI and / or the second SRI / TCI are valid.

59. An electronic device, characterized in that: The terminal device includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method described in any one of claims 1 to 27 or instructions for the steps in the method described in any one of claims 28 to 52.

60. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the steps of the method according to any one of claims 1 to 27 or the steps of the method according to any one of claims 28 to 52.

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