Information determination method / device / equipment and storage medium

Abstract

The present disclosure proposes an information determination method / device / equipment and storage medium, the method comprising: receiving indication information; the indication information is used to indicate at least one joint transmission configuration indication state joint TCI state; determining whether the at least one joint TCI state is used for transmission of uplink channels and / or uplink signals. The present disclosure provides a method for a terminal device to determine whether a joint TCI state indicated by a network device is used for transmission of uplink channels and / or uplink signals. When the terminal device determines that the joint TCI state indicated by the network device is not used for transmission of uplink channels and / or uplink signals, the joint TCI state will not be used for transmission of uplink channels and / or uplink signals. However, when the terminal device determines that the joint TCI state indicated by the network device is used for transmission of uplink channels and / or uplink signals, the joint TCI state will be used for transmission of uplink channels and / or uplink signals, thereby improving the transmission performance based on Multi‑TRP coherent joint transmission.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an information determination method / device / equipment and a storage medium. Background Art

[0002] In Multiple-Input Multiple-Output (MIMO) systems, coherent joint transmission (CJT) is implemented using multiple Transmission Reception Points (TRPs) with ideal backhaul connectivity. Currently, the unified Transmission Configuration Indicator (TCI) state already considers the single-TRP scenario. Specifically, the unified TCI state indicates the same TCI state for multiple channels / signals within a TRP. This same TCI state can be indicated separately for uplink and downlink (DL) TCI states and / or UL TCI states, or it can be indicated jointly for both uplink and downlink (joint TCI states). Furthermore, the terminal device may be used for receiving downlink channels and / or downlink signals based on the indicated joint TCI state and / or DLTCI state, and for sending uplink channels and / or uplink signals based on the indicated joint TCI state and / or UL TCI state.

[0003] In related technologies, MIMO currently supports CJT of up to 4 TRPs, and the network device will indicate up to 4 TCI states to the terminal device. Among them, when the network device indicates one or more joint TCI states to the terminal device, the terminal device will use the Quasi Co-location (QCL) information corresponding to the reference signal of the joint TCI state for physical uplink control channel (PUCCH) transmission, physical uplink shared channel (PUSCH) transmission, and UL Tx spatial filter of the sounding reference signal (SRS) based on the quasi co-location (QCL) information corresponding to the reference signal of the joint TCI state.

[0004] However, it should be noted that for the UL Tx spatial filter of PUSCH and / or SRS, the joint TCI state can only be used for the UL Tx spatial filter of PUSCH and / or SRS when the reference signal of the joint TCI state corresponds to QCL Type D. However, in the CJT case, it is applicable to FR1. At this time, the QCL information contained in the joint TCI state mainly includes QCL Type A and / or QCL Type B, which cannot be used for the UL Tx spatial filter. Therefore, how to let the terminal device know which joint TCI states cannot be used for the UL Tx spatial filter is a problem that needs to be solved. Summary of the Invention

[0005] The information determination method / device / equipment and storage medium proposed in the present disclosure are used by a terminal device to determine which joint TCI states are not used for transmission of uplink channels and / or uplink signals.

[0006] In a first aspect, an embodiment of the present disclosure provides an information determination method, which is executed by a terminal device and includes:

[0007] Receive indication information; the indication information is used to indicate at least one joint transmission configuration indication state jointTCI state;

[0008] Determine whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal.

[0009] In the present disclosure, a terminal device will receive indication information, wherein the indication information is used to indicate at least one jointTCI state; and the terminal device will also determine whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether a joint TCIstate indicated by a network device is used for transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for transmission of an uplink channel and / or an uplink signal, the joint TCIstate will not be used for transmission of an uplink channel and / or an uplink signal. However, when the terminal device determines that the jointTCI state indicated by the network device is used for transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for transmission of an uplink channel and / or an uplink signal, thereby improving the transmission performance based on Multi-TRP coherent joint transmission.

[0010] In a second aspect, an embodiment of the present disclosure provides an information determination method, which is executed by a network device and includes:

[0011] Send indication information; the indication information is used to indicate at least one joint TCI state.

[0012] In a third aspect, an embodiment of the present disclosure provides a communication device, which is included in a terminal device and includes:

[0013] a transceiver module configured to receive indication information; the indication information being used to indicate at least one joint transmission configuration indication state joint TCI state;

[0014] The processing module is configured to determine whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal.

[0015] In a fourth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a network device and includes:

[0016] The transceiver module is used to send indication information; the indication information is used to indicate at least one joint TCIstate.

[0017] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the first aspect is executed.

[0018] In a sixth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the second aspect is executed.

[0019] In the seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

[0020] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

[0021] In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.

[0022] In a tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

[0023] In the eleventh aspect, an embodiment of the present disclosure provides a communication system, which includes the communication device described in the third aspect to the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect to the communication device described in the sixth aspect, or the system includes the communication device described in the seventh aspect to the communication device described in the eighth aspect, or the system includes the communication device described in the ninth aspect to the communication device described in the tenth aspect.

[0024] In the twelfth aspect, an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the terminal device executes the method described in any one of the above-mentioned first to second aspects.

[0025] In a thirteenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in any one of the first to second aspects above.

[0026] In a fourteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network device in implementing the functions described in any of the methods described in aspects one to two, such as determining or processing at least one of the data and information involved in the method. In one possible design, the chip system further comprises a memory for storing computer programs and data necessary for the source slave node. The chip system may be composed of a chip or may include a chip and other discrete components.

[0027] In a fifteenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in any one of the first to second aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0029] Figure 1 A schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0030] Figure 2 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0031] Figure 3 A flowchart of an information determination method provided in yet another embodiment of the present disclosure;

[0032] Figure 4 A flowchart of an information determination method provided in yet another embodiment of the present disclosure;

[0033] Figure 5 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0034] Figure 6 A flowchart of an information determination method provided in yet another embodiment of the present disclosure;

[0035] Figure 7 A flowchart of an information determination method provided in yet another embodiment of the present disclosure;

[0036] Figure 8 A flowchart of an information determination method provided by one embodiment of the present disclosure;

[0037] Figure 9 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0038] Figures 10a-10eA flowchart of an information determination method provided by another embodiment of the present disclosure;

[0039] Figure 11 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0040] Figure 12 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0041] Figure 13 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0042] Figure 14 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0043] Figure 15 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0044] Figure 16 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0045] Figure 17 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0046] Figure 18 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0047] Figure 19 A flowchart of an information determination method provided by another embodiment of the present disclosure;

[0048] Figure 20 A schematic structural diagram of a communication device provided in another embodiment of the present disclosure;

[0049] Figure 21 A schematic structural diagram of a communication device provided in another embodiment of the present disclosure;

[0050] Figure 22 is a block diagram of a communication device provided by one embodiment of the present disclosure;

[0051] Figure 23 A schematic structural diagram of a chip provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0053] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0054] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0055] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0056] To facilitate understanding, the terms involved in this application are first introduced.

[0057] 1. Unified Transmission Configuration Indicator state (unified TCI state)

[0058] The unified TCI state includes the joint TCI state and / or the separate TCI state. The joint TCI state specifically indicates that a TCI state is used for both uplink transmission and downlink reception. The separate TCI state specifically indicates that a TCI state is used for uplink transmission or downlink reception. The separate TCI state includes the joint TCI state and the UL TCI state. The joint TCI state is used for downlink reception, and the UL TCI state is used for uplink transmission.

[0059] 2. Physical uplink control channel (PUCCH)

[0060] PUCCH is used to carry uplink control information, mainly carrying scheduling request, HARQ ACK / NACK, CSI including CQI, PMI, LI and RI, etc.

[0061] 3. Physical uplink shared channel (PUSCH)

[0062] Used to carry uplink data.

[0063] In order to better understand an information determination method disclosed in an embodiment of the present disclosure, the communication system to which the embodiment of the present disclosure is applicable is first described below.

[0064] See Figure 1 , Figure 1 This is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to a network device, a terminal device, Figure 1 The number and form of devices shown are for example only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included. Figure 1 The communication system shown includes a network device 11 and a terminal device 12 as an example.

[0065] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long-term evolution (LTE) systems, fifth-generation (5G) mobile communication systems, 5G new radio (NR) systems, or other future new mobile communication systems.

[0066] The network device 11 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network device 11 can be an evolved NodeB (eNB), a transmission reception point (TRP), a radio remote head (RRH), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present disclosure can be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU can also be called a control unit (control unit). The CU-DU structure can be used to split the protocol layer of the network device, such as the base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0067] The terminal device 12 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be called a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device can be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), etc. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal device.

[0068] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0069] The information determination method / device / equipment and storage medium provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0070] Figure 2 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 2 As shown, the information determination method may include the following steps:

[0071] Step 201: Receive instruction information.

[0072] In one embodiment of the present disclosure, the at least one joint TCIstate indicated by the indication information may be a TCI state used for transmission of a physical downlink shared channel (PDSCH).

[0073] Furthermore, in one embodiment of the present disclosure, the joint TCI state may include Quasi Co-location Type A (QCL Type A) and / or QCL Type B. QCL Type A may include {average delay, delay spread, Doppler shift, Doppler spread}. QCL Type B may include {Doppler shift, Doppler spread}.

[0074] In another embodiment of the present disclosure, the joint TCI state may include a quasi co-location type, which includes at least one of the following parameters:

[0075] Average delay;

[0076] Delay spread;

[0077] Doppler shift;

[0078] Doppler spread.

[0079] In another embodiment of the present disclosure, the joint TCI state may further include a path loss reference signal identifier and / or an uplink power control identifier, wherein the path loss reference signal identifier is used to indicate a path loss reference signal, and the uplink power control identifier is used to indicate uplink power control information.

[0080] Step 202: Determine whether at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal.

[0081] In one embodiment of the present disclosure, the uplink channel may include PUSCH and / or PUCCH. The uplink signal may include SRS and / or Demodulation Reference Signal (DMRS).

[0082] In addition, a detailed description of how the indication information in the above step 201 specifically indicates at least one joint TCI state and how the terminal device in step 202 specifically determines whether at least one joint TCI state is used for transmission of an uplink channel and / or uplink signal will be described in subsequent embodiments.

[0083] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0084] Figure 3 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 3 As shown, the information determination method may include the following steps:

[0085] Step 301: Receive indication information, where the indication information is carried in a first Medium Access Control Control Element (MAC CE). The first MAC CE is used to indicate at least one joint TCI state.

[0086] In one embodiment of the present disclosure, the first MAC CE may indicate at least one joint TCI state by indicating the ID of the TCI state.

[0087] And, in one embodiment of the present disclosure, there is a corresponding relationship between TCI state and codepoint, and the TCIstate indicated by the first MACCE corresponds to the same codepoint. The information field corresponding to the codepoint is carried in the first downlink control information (DCI). For example, in one embodiment of the present disclosure, the information field corresponding to the codepoint can be the TCI field of the first DCI, wherein the above-mentioned "information field corresponding to the codepoint" can be understood as: an information field used to carry the codepoint. And, it should be noted that in an embodiment of the present disclosure, when the TCIstate indicated by the first MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is carried in the first DCI, the first DCI can be sent to the terminal device to indicate the codepoint to the terminal device, or it can also not be sent to the terminal device and not indicate the codepoint to the terminal device.

[0088] For example, in one embodiment of the present disclosure, it is assumed that the TCI states corresponding to codepoint "000" are: joint TCI state with ID "2" and joint TCI state with ID "3". Then, the first MAC CE may indicate the joint TCI state with ID "2" and the joint TCI state with ID "3", and the information field corresponding to codepoint "000" corresponding to the joint TCI state with ID "2" and the joint TCI state with ID "3" is the TCI field of the first DCI.

[0089] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0090] Figure 4 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 4 As shown, the information determination method may include the following steps:

[0091] Step 401: Receive a second MAC CE and a second DCI.

[0092] In one embodiment of the present disclosure, the second MAC CE carries the above-mentioned indication information, and the second MAC CE can be used to indicate at least one joint TCI state corresponding to multiple codepoints respectively. The second DCI can be used to indicate one codepoint among the multiple codepoints, wherein the second DCI can use the TCI field to indicate the one codepoint.

[0093] In one embodiment of the present disclosure, the second MAC CE may indicate at least one joint TCI state by indicating the ID of the TCI state.

[0094] For example, in one embodiment of the present disclosure, it is assumed that the TCI states corresponding to codepoint "000" are: joint TCI state with ID "2" and joint TCI state with ID "3", and the TCI state corresponding to codepoint "001" is: joint TCI state with ID "4". Then, the second MAC CE may indicate the joint TCI state with ID "2" and joint TCI state with ID "3" corresponding to codepoint "000", and the joint TCI state with ID "4" corresponding to codepoint "001", and the TCI field of the second DCI may indicate codepoint "000" or codepoint "001".

[0095] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0096] Figure 5 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 5 As shown, the information determination method may include the following steps:

[0097] Step 501: Receive first configuration information, where the first configuration information is used to configure a PDSCH transmission method; and / or the terminal device determines a frequency band of a component carrier (CC) used for PDSCH transmission.

[0098] Step 502: In response to the PDSCH transmission method configured by the first configuration information being the target transmission method, and / or the frequency band where the CC used for PDSCH transmission is located belonging to FR1, it is determined that at least one joint TCI state is not used for transmission of uplink channels and / or uplink signals, or that the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state is used for transmission of uplink channels and / or uplink signals.

[0099] Wherein, after an embodiment of the present disclosure, the target transmission method may include CJT. Wherein, in the transmission of CJT, the demodulation reference signal (DMRS) port of PDSCH and the reference signal (RS) of at least one joint TCI state are in a QCL relationship. And, in the case of CJT, each channel measurement resource (CMR) corresponds to a TRP / RRH, and each TRP / RRH uses the same time domain resources and frequency domain resources, the same DMRS port, and the same or different TCI states to send PDSCH to the terminal. Wherein different CMRs are different NZP CSI-RS resources, or different CMRs are different ports among multiple ports of the same NZP CSI-RS resource.

[0100] Furthermore, in one embodiment of the present disclosure, the frequency of the FR1 is between 450 MHz and 6000 MHz.

[0101] And, in one embodiment of the present disclosure, when the transmission method of the PDSCH configured by the first configuration information is CJT, and / or the frequency band where the CC used for PDSCH transmission is located belongs to FR1, it can be determined by default that at least one joint TCIstate is not used for the transmission of the uplink channel and / or uplink signal, or it can also be determined by default that the path loss reference signal and / or uplink power control information indicated by at least one joint TCIstate is used for the transmission of the uplink channel and / or uplink signal. The premise of the above-mentioned "determining by default that the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal" should be: the path loss reference signal and / or uplink power control information is indicated in the at least one joint TCI state indicated by the network device.

[0102] Specifically, when the PDSCH transmission method configured by the first configuration information is CJT, and / or the frequency band where the CC used for PDSCH transmission is located belongs to FR1, it means that the QCL information contained in the joint TCI state indicated by the network device mainly includes QCL Type A and / or QCL Type B, which cannot be used for UL Tx spatial filter. Therefore, it can be determined by default that at least one joint TCI state indicated by the network device through the indication information is not used for transmission of uplink channels and / or uplink signals.

[0103] Also, when the PDSCH transmission method configured by the first configuration information is CJT, and / or the frequency band where the CC used for PDSCH transmission is located belongs to FR1, at this time, if the path loss reference signal and / or uplink power control information are indicated in at least one joint TCI state indicated by the network device, based on this, although the QCL information contained in the joint TCI state indicated by the network device cannot be used for the UL Tx spatial filter, it does not affect the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state of the network device for transmission of uplink channels and / or uplink signals. Therefore, it can be determined by default that the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state is used for transmission of uplink channels and / or uplink signals.

[0104] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0105] Figure 6This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 6 As shown, the information determination method may include the following steps:

[0106] Step 601: Receive first configuration information, where the first configuration information is carried in a Radio Resource Control (RRC), which is used to configure a PDSCH transmission method.

[0107] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0108] Figure 7 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 7 As shown, the information determination method may include the following steps:

[0109] Step 701: Receive RRC and the third MAC CE.

[0110] In one embodiment of the present disclosure, the RRC carries the above-mentioned configuration information, and the RRC is used to configure the PDSCH transmission method.

[0111] Furthermore, in one embodiment of the present disclosure, the third MAC CE may be used to indicate the number of joint TCI states corresponding to the PDSCH. Alternatively, in another embodiment of the present disclosure, the third MAC CE may be used to indicate at least one joint TCI state, the TCI state indicated by the third MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the third DCI. When the third MAC CE is used to indicate at least one joint TCI state, the structure of the third MAC CE is identical to that of the first MAC CE, and the structural principle of the third DCI is identical to that of the first DCI. For details, please refer to the above description.

[0112] In addition, it should be noted that, in one embodiment of the present disclosure, the joint TCI state corresponding to the PDSCH can be specifically understood as: a joint TCI state used for PDSCH transmission. Furthermore, the number of joint TCI states corresponding to the PDSCH can be greater than or equal to the number of at least one joint TCI state indicated by the indication information.

[0113] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0114] Figure 8 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 8 As shown, the information determination method may include the following steps:

[0115] Step 801: Receive RRC and the fourth DCI.

[0116] In one embodiment of the present disclosure, the RRC carries the above-mentioned configuration information, and the RRC is used to configure the PDSCH transmission method.

[0117] Furthermore, in one embodiment of the present disclosure, the fourth DCI may be used to indicate the number of joint TCI states corresponding to the PDSCH. For the relevant introduction to the joint TCI states corresponding to the PDSCH, reference may be made to the description of the above embodiment.

[0118] Alternatively, in one embodiment of the present disclosure, the fourth DCI may be used to indicate a codepoint, where the codepoint corresponds to at least one joint TCI state in the joint TCI state indicated by the indication information. For example, the fourth DCI may use a TCI field or other information field to indicate the codepoint.

[0119] For example, assuming that the indication information indicates a joint TCI state with an ID of "2" and a joint TCI state with an ID of "3", wherein the joint TCI state with an ID of "2" and the joint TCI state with an ID of "3" correspond to codepoint "000", then the fourth DCI may use the TCI field to indicate codepoint "000". Alternatively, assuming that the indication information indicates a joint TCI state with an ID of "2" and a joint TCI state with an ID of "3", wherein the joint TCI state with an ID of "2" corresponds to codepoint "00", the joint TCI state with an ID of "3" corresponds to codepoint "01", and the joint TCI state with an ID of "2" and the joint TCI state with an ID of "3" correspond to codepoint "10", then the fourth DCI may use other information fields to indicate codepoint "00", "01", or "10". Alternatively, assuming that the indication information indicates a joint TCI state with ID "2", a joint TCI state with ID "3", and a joint TCI state with ID "4", where the joint TCI state with ID "2" and the joint TCI state with ID "3" correspond to codepoint "00", and the joint TCI state with ID "4" corresponds to codepoint "01", then the fourth DCI can use other information fields to indicate codepoint "00" or codepoint "01".

[0120] In addition, it should be noted that, in one embodiment of the present disclosure, the joint TCI state corresponding to the PDSCH can be specifically understood as: a joint TCI state used for PDSCH transmission. Furthermore, the number of joint TCI states corresponding to the PDSCH can be greater than or equal to the number of at least one joint TCI state indicated by the indication information.

[0121] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0122] Figure 9 This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 9 As shown, the information determination method may include the following steps:

[0123] Step 901: Receive RRC, the fourth MAC CE and the fifth DCI.

[0124] In one embodiment of the present disclosure, the RRC carries the above-mentioned configuration information, and the RRC is used to configure the PDSCH transmission method.

[0125] In addition, in one embodiment of the present disclosure, the fourth MAC CE can be used to indicate at least one first value, which is: a candidate value of the number of joint TCI states corresponding to the PDSCH; the fifth DCI is used to indicate a codepoint, which corresponds to a first value. Optionally, the first value corresponding to the codepoint can specifically be: the actual number of joint TCI states corresponding to the PDSCH.

[0126] It can be seen from the above content that there is also a corresponding relationship between the codepoint and the above-mentioned candidate values. And, in combination with the above content, it can be seen that there is also a corresponding relationship between the codepoint and TCIstate. Based on this, in order to distinguish the two codepoints, in one embodiment of the present disclosure, the codepoint corresponding to the candidate value and the codepoint corresponding to the TCIstate are indicated by different domains of the DCI (such as the first DCI to the fifth DCI mentioned above). For example, the codepoint corresponding to the TCIstate is indicated by the TCI domain of the DCI, and the codepoint corresponding to the candidate value is indicated by other domains of the DCI except the TCI domain. Based on this, after the terminal device receives the DCI, it can determine that the codepoint carried by the TCI domain of the DCI corresponds to the TCIstate, and that the codepoint carried by other domains of the DCI except the TCI domain corresponds to the candidate value.

[0127] For example, assuming that the codepoint corresponding to the candidate value is indicated by the first field of the DCI other than the TCI field, based on this, it is assumed that the candidate values ​​for the number of joint TCI states corresponding to the PDSCH are: 2, 3, and 4, where the candidate value "2" corresponds to the codepoint "00", the candidate value "3" corresponds to the codepoint "01", and the candidate value "4" corresponds to the codepoint "10", and the actual number of joint TCI states corresponding to the PDSCH is: 3. Then, the fourth MAC CE can indicate 2, 3, or 4, and the first field of the fifth DCI can indicate the codepoint "01".

[0128] In another embodiment of the present disclosure, a fourth MAC CE may be used to indicate at least one joint TCI state corresponding to multiple codepoints, and a fifth DCI may be used to indicate one of the multiple codepoints. The structure of the fourth MAC CE may be similar to that of the aforementioned second MAC CE, and the structure of the fifth DCI may be similar to that of the aforementioned second DCI. For detailed descriptions, please refer to the above description.

[0129] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0130] Figure 10a This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 10a As shown, the information determination method may include the following steps:

[0131] Step 1001a: Receive second configuration information, where the second configuration information is used to indicate whether transmission of an uplink channel and / or uplink signal adopts the at least one joint TCI state.

[0132] In one embodiment of the present disclosure, the second configuration information may be sent by the network device to the terminal device, and the second configuration information may include at least one of the following:

[0133] RRC;

[0134] MAC CE;

[0135] DCI.

[0136] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0137] Figure 10b This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 10b As shown, the information determination method may include the following steps:

[0138] Step 1001b: In response to the second configuration information indicating that transmission of uplink channels and / or uplink signals does not use at least one joint TCI state indicated by the network device, determine that at least one joint TCI state is not used for transmission of uplink channels and / or uplink signals.

[0139] In one embodiment of the present disclosure, the second configuration information for indicating that the transmission of the uplink channel and / or uplink signal does not adopt at least one joint TCI state indicated by the network device can be sent to the terminal device when the network device determines that the PDSCH transmission method is the target transmission method (such as CJT), and / or the frequency band where the CC used for PDSCH transmission is located belongs to FR1.

[0140] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0141] Figure 10c This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 10c As shown, the information determination method may include the following steps:

[0142] Step 1001c, in response to the second configuration information being used to indicate that the transmission of the uplink channel and / or uplink signal adopts at least one joint TCI state indicated by the network device, determine that the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal.

[0143] In one embodiment of the present disclosure, the second configuration information for indicating that the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state is used for transmission of the uplink channel and / or uplink signal may be sent to the terminal device when the network device determines that the path loss reference signal and / or uplink power control information is indicated in at least one joint TCI state indicated by it.

[0144] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0145] Figure 10d This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 10b As shown, the information determination method may include the following steps:

[0146] Step 1001d: In response to at least one joint TCI state indicating a path loss reference signal and / or uplink power control information, determine that the path loss reference signal and / or uplink power control information indicated by at least one joint TCI state is used for transmission of an uplink channel and / or uplink signal.

[0147] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0148] Figure 10e This is a flow chart of an information determination method provided by an embodiment of the present disclosure, which is executed by a terminal device, such as Figure 10c As shown, the information determination method may include the following steps:

[0149] Step 1001e: In response to at least one joint TCI state not indicating a path loss reference signal and / or uplink power control information, determine that at least one joint TCI state is not used for transmission of an uplink channel and / or uplink signal.

[0150] In summary, in the information determination method provided by the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one jointTCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. However, when the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0151] It should be noted that, in the present disclosure, any two or more of the first MAC CE, the second MAC CE, the third MAC CE, the fourth MAC CE, and the MAC CE serving as the second configuration information may be different MAC CEs, or the same MAC CE. Similarly, in the present disclosure, any two or more of the first DCI, the second DCI, the third DCI, the fourth DCI, the fifth DCI, and the DCI serving as the second configuration information may be different DCIs, or the same DCI. Furthermore, in the present disclosure, the RRC carrying the first configuration information and the RRC serving as the second configuration information may be different RRCs, or the same RRC.

[0152] Figure 11 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 14 As shown, the information determination method may include the following steps:

[0153] Step 1101: Send instruction information.

[0154] The indication information is used to indicate at least one joint TCI state.

[0155] For a detailed description of step 1401 , please refer to the above embodiment description.

[0156] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0157] Figure 12 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 12 As shown, the information determination method may include the following steps:

[0158] Step 1201: Send indication information, where the indication information is carried in a first MAC CE, and the first MAC CE is used to indicate at least one joint TCI state.

[0159] For a detailed description of step 1201 , please refer to the above embodiment description.

[0160] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0161] Figure 13 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 13 As shown, the information determination method may include the following steps:

[0162] Step 1301: Send a second MAC CE and a second DCI.

[0163] For a detailed description of step 1301 , please refer to the above embodiment description.

[0164] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0165] Figure 14 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 14 As shown, the information determination method may include the following steps:

[0166] Step 1401: Send first configuration information, where the first configuration information is used to configure a PDSCH transmission method.

[0167] For a detailed description of step 1401 , please refer to the above embodiment description.

[0168] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0169] Figure 15 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 15 As shown, the information determination method may include the following steps:

[0170] Step 1501: Send first configuration information, where the first configuration information is carried in RRC, and the RRC is used to configure a PDSCH transmission method.

[0171] For a detailed description of step 1501 , please refer to the above embodiment description.

[0172] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0173] Figure 16 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 16 As shown, the information determination method may include the following steps:

[0174] Step 1601: Send RRC and the third MAC CE.

[0175] For a detailed description of step 1601 , please refer to the above embodiment description.

[0176] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0177] Figure 17 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 17 As shown, the information determination method may include the following steps:

[0178] Step 1701: Send RRC and the fourth DCI.

[0179] For a detailed description of step 1701 , please refer to the above embodiment description.

[0180] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0181] Figure 18 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 18 As shown, the information determination method may include the following steps:

[0182] Step 1801: Send RRC, the fourth MAC CE and the fifth DCI.

[0183] For a detailed description of step 1801 , please refer to the above embodiment description.

[0184] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0185] Figure 19 A flow chart of an information determination method provided by an embodiment of the present disclosure is shown, and the method is executed by a network device, such as Figure 21 As shown, the information determination method may include the following steps:

[0186] Step 1901: Send second configuration information, where the second configuration information is used to indicate whether transmission of an uplink channel and / or uplink signal adopts the at least one joint TCI state.

[0187] For a detailed description of step 1901, please refer to the above embodiment description.

[0188] In summary, in the information determination method provided by the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0189] Figure 20 FIG26 is a schematic diagram of a communication device provided in an embodiment of the present disclosure. The device may include:

[0190] a transceiver module configured to receive indication information; the indication information being used to indicate at least one joint transmission configuration indication state joint TCI state;

[0191] The processing module is configured to determine whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal.

[0192] In summary, in the communication device provided in the embodiment of the present disclosure, the terminal device will receive indication information, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of an uplink channel and / or an uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by a network device is used for the transmission of an uplink channel and / or an uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of an uplink channel and / or an uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or the uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or the uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or the uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0193] Optionally, in one embodiment of the present disclosure, the indication information is carried in a first media access control layer control element MAC CE; the first MAC CE is used to indicate at least one joint TCI state.

[0194] Optionally, in one embodiment of the present disclosure, the TCI state indicated by the first MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the first downlink control information DCI.

[0195] Optionally, in one embodiment of the present disclosure, the indication information is carried in a second MAC CE; wherein the second MAC CE is used to indicate at least one joint TCI state corresponding to each of the multiple codepoints;

[0196] The apparatus is further configured to receive a second DCI, where the second DCI is configured to indicate one of the multiple codepoints.

[0197] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0198] Receiving first configuration information, where the first configuration information is used to configure a transmission method of a physical downlink shared channel (PDSCH); and / or the terminal device determining a frequency band of a carrier CC used for PDSCH transmission;

[0199] In response to the PDSCH transmission method configured by the first configuration information being the target transmission method, and / or the frequency band where the CC used for PDSCH transmission is located belonging to FR1, it is determined that the at least one joint TCI state is not used for transmission of uplink channels and / or uplink signals, or it is determined that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCI state is used for transmission of uplink channels and / or uplink signals.

[0200] Optionally, in one embodiment of the present disclosure, the target transmission method includes coherent joint transmission (CJT).

[0201] Optionally, in one embodiment of the present disclosure, the first configuration information is carried in a radio resource control RRC, and the RRC is used to configure a PDSCH transmission method.

[0202] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0203] receiving a third MAC CE;

[0204] The third MAC CE is used to indicate the number of joint TCI states corresponding to the PDSCH; or

[0205] The third MAC CE is used to indicate at least one joint TCI state, the TCI state indicated by the third MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the third DCI.

[0206] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0207] receiving a fourth DCI;

[0208] The fourth DCI is used to indicate the number of joint TCI states corresponding to the PDSCH; or

[0209] The fourth DCI is used to indicate a codepoint, where the codepoint corresponds to at least one joint TCI state among the joint TCI states indicated by the indication information.

[0210] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0211] receiving a fourth MAC CE and a fifth DCI;

[0212] The fourth MAC CE is used to indicate at least one first value, where the first value is a candidate value of the number of joint TCI states corresponding to the PDSCH; the fifth DCI is used to indicate a codepoint, where the codepoint corresponds to a first value; or

[0213] The fourth MAC CE is used to indicate at least one joint TCI state corresponding to multiple codepoints respectively, and the fifth DCI is used to indicate one codepoint among the multiple codepoints.

[0214] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0215] Second configuration information is received, where the second configuration information is used to indicate whether transmission of an uplink channel and / or an uplink signal adopts the at least one joint TCI state.

[0216] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0217] In response to the second configuration information being used to indicate that transmission of an uplink channel and / or an uplink signal does not adopt the at least one joint TCI state, determining that the at least one joint TCI state is not used for transmission of an uplink channel and / or an uplink signal; or

[0218] In response to the second configuration information being used to indicate that the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state, it is determined that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal.

[0219] Optionally, in an embodiment of the present disclosure, the second configuration information includes at least one of the following:

[0220] RRC;

[0221] MAC CE;

[0222] DCI.

[0223] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0224] In response to the at least one joint TCI state indicating a path loss reference signal and / or uplink power control information, determining that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal; or

[0225] In response to the at least one joint TCI state not indicating a path loss reference signal and / or uplink power control information, it is determined that the at least one joint TCI state is not used for transmission of an uplink channel and / or an uplink signal.

[0226] Optionally, in one embodiment of the present disclosure, the uplink channel includes a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH; and / or

[0227] The uplink signal includes a sounding reference signal SRS and / or a demodulation reference signal DMRS.

[0228] Figure 21 FIG27 is a schematic diagram of a communication device provided in an embodiment of the present disclosure. The device may include:

[0229] The transceiver module is used to send indication information; the indication information is used to indicate at least one joint TCIstate.

[0230] In summary, in the communication device provided in the embodiment of the present disclosure, the network device will send indication information to the terminal device, wherein the indication information is used to indicate at least one joint TCI state; and the terminal device will also determine whether the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal. It can be seen that the present disclosure provides a method for a terminal device to determine whether the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is not used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will not be used for the transmission of the uplink channel and / or uplink signal. When the terminal device determines that the joint TCI state indicated by the network device is used for the transmission of the uplink channel and / or uplink signal, the joint TCI state will be used for the transmission of the uplink channel and / or uplink signal, thereby improving the transmission performance based on the Multi-TRP coherent joint transmission.

[0231] Optionally, in one embodiment of the present disclosure, the indication information is carried in a first MAC CE; the first MAC CE is used to indicate at least one joint TCI state.

[0232] Optionally, in one embodiment of the present disclosure, the TCI state indicated by the first MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the first downlink control information DCI.

[0233] Optionally, in one embodiment of the present disclosure, the indication information is carried in a second MAC CE; wherein the second MAC CE is used to indicate at least one joint TCI state corresponding to each of the multiple codepoints;

[0234] The apparatus is further configured to: send a second DCI, where the second DCI is used to indicate one codepoint among the multiple codepoints.

[0235] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0236] First configuration information is sent, where the first configuration information is used to configure a PDSCH transmission method.

[0237] Optionally, in one embodiment of the present disclosure, the first configuration information is carried in RRC; the RRC is used to configure a PDSCH transmission method.

[0238] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0239] Send the third MAC CE;

[0240] The third MAC CE is used to indicate the number of joint TCI states corresponding to the PDSCH; or

[0241] The third MAC CE is used to indicate at least one joint TCI state, the TCI state indicated by the third MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the third DCI.

[0242] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0243] Sending a fourth DCI;

[0244] The fourth DCI is used to indicate the number of joint TCI states corresponding to the PDSCH; or

[0245] The fourth DCI is used to indicate a codepoint, where the codepoint corresponds to at least one joint TCI state among the joint TCI states indicated by the indication information.

[0246] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0247] Sending a fourth MAC CE and a fifth DCI;

[0248] The fourth MAC CE is used to indicate at least one first value, where the first value is a candidate value of the number of joint TCI states corresponding to the PDSCH; the fifth DCI is used to indicate a codepoint, where the codepoint corresponds to a first value; or

[0249] The fourth MAC CE is used to indicate at least one joint TCI state corresponding to multiple codepoints respectively, and the fifth DCI is used to indicate one codepoint among the multiple codepoints.

[0250] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0251] Second configuration information is sent, where the second configuration information is used to indicate whether transmission of an uplink channel and / or an uplink signal adopts the at least one joint TCI state.

[0252] Optionally, in an embodiment of the present disclosure, the second configuration information includes at least one of the following:

[0253] RRC;

[0254] MAC CE;

[0255] DCI.

[0256] Optionally, in one embodiment of the present disclosure, the uplink channel includes PUSCH and / or PUCCH;

[0257] The uplink signal includes SRS and / or DMRS.

[0258] See Figure 22 , Figure 222 is a schematic diagram of the structure of a communication device 2200 provided in an embodiment of the present application. Communication device 2200 can be a network device or a terminal device, or a chip, chip system, or processor that supports a network device in implementing the above-mentioned method. It can also be a chip, chip system, or processor that supports a terminal device in implementing the above-mentioned method. This device can be used to implement the method described in the above-mentioned method embodiment. For details, please refer to the description of the above-mentioned method embodiment.

[0259] The communication device 2200 may include one or more processors 2201. The processor 2201 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0260] Optionally, the communication device 2200 may further include one or more memories 2202, on which a computer program 2204 may be stored. The processor 2201 executes the computer program 2204 to cause the communication device 2200 to perform the method described in the above method embodiment. Optionally, the memory 2202 may also store data. The communication device 2200 and the memory 2202 may be provided separately or integrated together.

[0261] Optionally, the communication device 2200 may further include a transceiver 2205 and an antenna 2206. The transceiver 2205 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 2205 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0262] Optionally, the communication device 2200 may further include one or more interface circuits 2207. The interface circuit 2207 is configured to receive code instructions and transmit the code instructions to the processor 2201. The processor 2201 executes the code instructions to enable the communication device 2200 to perform the method described in the above method embodiment.

[0263] In one implementation, the processor 2201 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0264] In one implementation, processor 2201 may store a computer program 2203. Computer program 2203, when executed on processor 2201, enables communication device 2200 to perform the method described in the above method embodiment. Computer program 2203 may be embedded in processor 2201, in which case processor 2201 may be implemented by hardware.

[0265] In one implementation, the communication device 2200 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0266] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited thereto. Figure 22 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0267] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0268] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0269] (3) ASIC, such as modem;

[0270] (4) Modules that can be embedded in other devices;

[0271] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0272] (6)Others, etc.

[0273] For the case where the communication device may be a chip or a chip system, see Figure 23 Schematic diagram of the chip structure shown. Figure 23 The chip shown includes a processor 2301 and an interface 2302. There may be one or more processors 2301 and there may be more than one interface 2302.

[0274] Optionally, the chip further includes a memory 2303, which is used to store necessary computer programs and data.

[0275] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0276] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0277] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0278] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0279] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0280] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0281] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0282] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0283] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0284] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0285] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for determining information, characterized in that: Executed by the terminal device, including: receiving indication information; the indication information is used to indicate at least one joint transmission configuration indication state joint TCIstate; determining whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal; The method also includes: receiving second configuration information, and in response to the second configuration information being used to indicate that the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state, determining that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCIstate is used for the transmission of the uplink channel and / or uplink signal.

2. The method according to claim 1, wherein The indication information is carried in a first media access control layer control element MAC CE; the first MAC CE is used to indicate at least one joint TCI state.

3. The method according to claim 2, wherein The TCI state indicated by the first MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the first downlink control information DCI.

4. The method according to claim 1, wherein The indication information is carried in a second MAC CE; wherein the second MAC CE is used to indicate at least one joint TCI state corresponding to multiple codepoints respectively; The method further comprises: A second DCI is received, where the second DCI is used to indicate one codepoint among the multiple codepoints.

5. The method according to claim 1, wherein The determining whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal includes: Receive first configuration information, where the first configuration information is used to configure a transmission method of a physical downlink shared channel (PDSCH); and / or is used by the terminal device to determine a frequency band of a carrier CC used for PDSCH transmission; In response to the PDSCH transmission method configured by the first configuration information being the target transmission method, and / or the frequency band where the CC used for PDSCH transmission is located belonging to FR1, it is determined that the at least one joint TCI state is not used for transmission of uplink channels and / or uplink signals, or it is determined that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCI state is used for transmission of uplink channels and / or uplink signals.

6. The method according to claim 5, wherein The target transmission method includes coherent joint transmission (CJT).

7. The method according to claim 5, wherein The first configuration information is carried in a radio resource control RRC, and the RRC is used to configure a PDSCH transmission method.

8. The method according to claim 7, wherein The method further comprises: Receive a third MAC CE; wherein the third MAC CE is used to indicate the number of joint TCI states corresponding to the PDSCH; or The third MAC CE is used to indicate at least one joint TCI state, the TCIstate indicated by the third MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the third DCI.

9. The method according to claim 7, wherein The method further comprises: Receive a fourth DCI; wherein the fourth DCI is used to indicate the number of joint TCI states corresponding to the PDSCH; or The fourth DCI is used to indicate a codepoint, where the codepoint corresponds to at least one joint TCI state among the joint TCI states indicated by the indication information.

10. The method according to claim 7, wherein The method further comprises: Receive a fourth MAC CE and a fifth DCI; wherein the fourth MAC CE is used to indicate at least one first value, where the first value is: a candidate value of the number of joint TCI states corresponding to the PDSCH; the fifth DCI is used to indicate a codepoint, where the codepoint corresponds to a first value; or The fourth MAC CE is used to indicate at least one joint TCI state corresponding to multiple codepoints respectively, and the fifth DCI is used to indicate one codepoint among the multiple codepoints.

11. The method according to claim 1, wherein The second configuration information is used to indicate whether the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state.

12. The method according to claim 11, wherein The determining whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal includes: In response to the second configuration information being used to indicate that transmission of an uplink channel and / or an uplink signal does not adopt the at least one joint TCI state, it is determined that the at least one joint TCI state is not used for transmission of an uplink channel and / or an uplink signal.

13. The method according to claim 11, wherein The second configuration information includes at least one of the following: RRC; MAC CE; DCI.

14. The method according to claim 1, wherein The determining whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal includes: In response to the at least one joint TCI state indicating a path loss reference signal and / or uplink power control information, determining that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal; or In response to the at least one joint TCI state not indicating a path loss reference signal and / or uplink power control information, it is determined that the at least one joint TCI state is not used for transmission of an uplink channel and / or an uplink signal.

15. The method according to any one of claims 1 to 14, wherein: The uplink channel includes a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH; and / or The uplink signal includes a sounding reference signal SRS and / or a demodulation reference signal DMRS.

16. An information determination method, characterized in that: Executed by network devices, including: Sending indication information; the indication information is used to indicate at least one joint TCI state; The method also includes: sending second configuration information; wherein, in response to the second configuration information being used to indicate that the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state, the path loss reference signal and / or uplink power control information indicated by the at least one joint TCIstate is determined to be used for the transmission of the uplink channel and / or uplink signal.

17. The method according to claim 16, wherein The indication information is carried in a first MAC CE; the first MAC CE is used to indicate at least one joint TCI state.

18. The method according to claim 17, wherein The TCI state indicated by the first MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the first DCI.

19. The method according to claim 16, wherein The indication information is carried in a second MAC CE; wherein the second MAC CE is used to indicate at least one joint TCI state corresponding to multiple codepoints respectively; The method further comprises: Send a second DCI, where the second DCI is used to indicate one codepoint among the multiple codepoints.

20. The method of claim 16, wherein: The method further comprises: First configuration information is sent, where the first configuration information is used to configure a PDSCH transmission method.

21. The method according to claim 20, wherein The first configuration information is carried in RRC; the RRC is used to configure a PDSCH transmission method.

22. The method according to claim 20, wherein The method further comprises: Send a third MAC CE; wherein the third MAC CE is used to indicate the number of joint TCI states corresponding to the PDSCH; or The third MAC CE is used to indicate at least one joint TCI state, the TCIstate indicated by the third MAC CE corresponds to the same codepoint, and the information field corresponding to the codepoint is included in the third DCI.

23. The method of claim 20, wherein: The method comprises: Sending a fourth DCI; wherein the fourth DCI is used to indicate the number of joint TCI states corresponding to the PDSCH; or The fourth DCI is used to indicate a codepoint, where the codepoint corresponds to at least one joint TCI state among the joint TCI states indicated by the indication information.

24. The method of claim 20, wherein: The method further comprises: Sending a fourth MAC CE and a fifth DCI; wherein the fourth MAC CE is used to indicate at least one first value, where the first value is: a candidate value of the number of joint TCI states corresponding to the PDSCH; the fifth DCI is used to indicate a codepoint, where the codepoint corresponds to a first value; or The fourth MAC CE is used to indicate at least one joint TCI state corresponding to multiple codepoints respectively, and the fifth DCI is used to indicate one codepoint among the multiple codepoints.

25. The method of claim 16, wherein: The second configuration information is used to indicate whether the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state.

26. The method of claim 25, wherein: The second configuration information includes at least one of the following: RRC; MAC CE; DCI.

27. The method according to any one of claims 16 to 26, wherein: The uplink channel includes PUSCH and / or PUCCH; and / or The uplink signal includes SRS and / or DMRS.

28. A communication device, configured in a terminal device, comprising: a transceiver module, configured to receive instruction information; The indication information is used to indicate at least one joint transmission configuration indication state joint TCI state; a processing module, configured to determine whether the at least one joint TCI state is used for transmission of an uplink channel and / or an uplink signal; The transceiver module is further configured to: receive second configuration information; The processing module is also used to: in response to the second configuration information being used to indicate that the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state, determine that the path loss reference signal and / or uplink power control information indicated by the at least one joint TCI state is used for the transmission of the uplink channel and / or uplink signal.

29. A communication device, configured in a network device, comprising: A transceiver module, used for sending instruction information; The indication information is used to indicate at least one joint TCI state; The transceiver module is further used to: send second configuration information; wherein, in response to the second configuration information being used to indicate that the transmission of the uplink channel and / or uplink signal adopts the at least one joint TCI state, the path loss reference signal and / or uplink power control information indicated by the at least one jointTCI state is determined to be used for transmission of the uplink channel and / or uplink signal.

30. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the device to perform the method according to any one of claims 1 to 15, or the processor executes the computer program stored in the memory to cause the device to perform the method according to any one of claims 16 to 27.

31. A communication device, characterized in that: include: processor and interface circuitry, wherein The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method according to any one of claims 1 to 15, or is configured to execute the code instructions to perform the method according to any one of claims 16 to 27.

32. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 1 to 15 to be implemented, or, when executed, enable the method according to any one of claims 16 to 27 to be implemented.

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