Wireless communication method, terminal device and network device

Abstract

The embodiment of the invention provides a wireless communication method, terminal equipment and network equipment, and the terminal equipment can flexibly determine an uplink transmission scheme and improve the throughput of a system. The wireless communication method comprises the following steps: the terminal equipment receives first DCI (Downlink Control Information); the terminal device determines a transmission scheme of first uplink information according to at least one signaling in the first DCI; wherein the transmission scheme of the first uplink information is one of the following schemes: SDM, SFN, TDM, FDM, single TRP or single antenna panel transmission schemes; and the terminal device sends the first uplink information according to the transmission scheme of the first uplink information.

Description

Wireless communication method, terminal device and network device

[0001] This application claims priority to the PCT patent application filed with the China Patent Office on September 30, 2022, with application number PCT / CN2022 / 123332 and invention name “Wireless Communication Method, Terminal Equipment and Network Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method, terminal device, and network device. Background Art

[0003] In some scenarios, multiple transmission schemes using multiple antenna panels or multiple transmission reception points (TRPs) are introduced. However, how to determine the transmission scheme for uplink information is a problem that needs to be solved.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a wireless communication method, terminal device, and network device, wherein the terminal device can flexibly determine an uplink transmission scheme and improve the system throughput.

[0006] In a first aspect, a wireless communication method is provided, the method comprising:

[0007] The terminal device receives the first DCI;

[0008] The terminal device determines a transmission scheme for the first uplink information according to at least one signaling in the first DCI; wherein the transmission scheme for the first uplink information is one of the following: an SDM transmission scheme, an SFN transmission scheme, a TDM transmission scheme, an FDM transmission scheme, a single TRP or a single antenna panel transmission scheme;

[0009] The terminal device sends the first uplink information according to the transmission scheme of the first uplink information.

[0010] In a second aspect, a wireless communication method is provided, the method comprising:

[0011] The network device sends a first DCI; wherein at least one signaling in the first DCI is used by the terminal device to determine a transmission scheme for first uplink information, where the transmission scheme for the first uplink information is one of the following: an SDM transmission scheme, an SFN transmission scheme, a TDM transmission scheme, an FDM transmission scheme, a single TRP or a single antenna panel transmission scheme;

[0012] The network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0013] According to a third aspect, a wireless communication method is provided, the method comprising:

[0014] The terminal device receives SRS resource indication information;

[0015] The terminal device determines a transmission scheme for the first uplink information according to the number of TCI states associated with the SRS resource indicated by the SRS resource indication information; wherein the transmission scheme for the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, and an SFN transmission scheme;

[0016] The terminal device sends the first uplink information according to the transmission scheme of the first uplink information.

[0017] In a fourth aspect, a wireless communication method is provided, the method comprising:

[0018] The network device sends SRS resource indication information; wherein the number of TCI states associated with the SRS resource indicated by the SRS resource indication information is used by the terminal device to determine a transmission scheme for the first uplink information, and the transmission scheme for the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, and an SFN transmission scheme;

[0019] The network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0020] In a fifth aspect, a terminal device is provided for executing the method in the first aspect.

[0021] Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect.

[0022] In a sixth aspect, a network device is provided for executing the method in the second aspect.

[0023] Specifically, the network device includes a functional module for executing the method in the above second aspect.

[0024] In a seventh aspect, a terminal device is provided for executing the method in the third aspect.

[0025] Specifically, the terminal device includes a functional module for executing the method in the third aspect above.

[0026] In an eighth aspect, a network device is provided for executing the method in the fourth aspect.

[0027] Specifically, the network device includes a functional module for executing the method in the fourth aspect above.

[0028] In the ninth aspect, a terminal device is provided, comprising a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the terminal device executes the method in the above-mentioned first aspect.

[0029] In the tenth aspect, a network device is provided, comprising a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the network device executes the method in the above-mentioned second aspect.

[0030] In the eleventh aspect, a terminal device is provided, comprising a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the terminal device executes the method in the above-mentioned third aspect.

[0031] In the twelfth aspect, a network device is provided, comprising a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the network device executes the method in the above-mentioned fourth aspect.

[0032] In the thirteenth aspect, a device is provided for implementing the method in any one of the first to fourth aspects above.

[0033] Specifically, the apparatus includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the apparatus executes the method in any one of the first to fourth aspects described above.

[0034] In a fourteenth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to fourth aspects above.

[0035] In a fifteenth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to fourth aspects above.

[0036] In the sixteenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to fourth aspects above.

[0037] Through the technical solutions of the first and second aspects above, the terminal device can determine the transmission scheme of the first uplink information based on at least one signaling in the first DCI, and the transmission scheme of the first uplink information is one of the following: an SDM transmission scheme, an SFN transmission scheme, a TDM transmission scheme, an FDM transmission scheme, a single TRP or a single antenna panel transmission scheme. Thus, the terminal device can dynamically determine the uplink transmission scheme based on the first DCI, that is, the terminal device can flexibly determine the uplink transmission scheme and improve the system throughput.

[0038] Through the technical solutions of the third and fourth aspects above, a terminal device can determine a transmission scheme for the first uplink information based on the number of TCI states associated with the SRS resource indicated by the SRS resource indication information. The transmission scheme for the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme. This allows the terminal device to flexibly determine the uplink transmission scheme and improve system throughput. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0040] FIG2 is a schematic diagram of a method of performing uplink transmission simultaneously by multiple panels / TRPs provided in the present application.

[0041] FIG3 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0042] FIG4 is a schematic diagram of an SDM transmission solution provided in an embodiment of the present application.

[0043] FIG5 is a schematic diagram of an FDM transmission solution provided in an embodiment of the present application.

[0044] FIG6 is a schematic diagram of an SFN transmission solution provided in an embodiment of the present application.

[0045] FIG7 is a schematic diagram of a TDM transmission solution provided in an embodiment of the present application.

[0046] FIG8 is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.

[0047] FIG9 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0048] FIG10 is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0049] FIG11 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0050] FIG12 is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0051] FIG13 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0052] FIG14 is a schematic block diagram of a device provided according to an embodiment of the present application.

[0053] FIG15 is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system on unlicensed spectrum, NR-based access to unlicensed spectrum (NR-U) system on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Internet of Things (IoT), Wireless Fidelity (WFI) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, sixth-generation communication (6G) system or other communication systems.

[0056] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, sidelink (SL) communication, vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0057] In some embodiments, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, an independent (SA) networking scenario, or a non-standalone (NSA) networking scenario.

[0058] In some embodiments, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiments of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0059] In some embodiments, the communication system in the embodiments of the present application can be applied to the FR1 frequency band (corresponding to the frequency band range of 410MHz to 7.125GHz), can also be applied to the FR2 frequency band (corresponding to the frequency band range of 24.25GHz to 52.6GHz), and can also be applied to new frequency bands such as high-frequency bands corresponding to the frequency band range of 52.6GHz to 71GHz or the frequency band range of 71GHz to 114.25GHz.

[0060] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0061] The terminal device can be a station (ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0062] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0063] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, 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, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city or a wireless terminal device in a smart home, an in-vehicle communication device, a wireless communication chip / application specific integrated circuit (ASIC) / system on chip (SoC), etc.

[0064] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0065] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a network device or base station (gNB) or a transmission reception point (TRP) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0066] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station set up in a location such as land or water.

[0067] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0068] For example, a communication system 100 used in an embodiment of the present application is shown in FIG1 . The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0069] FIG1 exemplarily shows a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0070] In some embodiments, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0071] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0072] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0073] It should be understood that this document relates to a first communication device and a second communication device. The first communication device can be a terminal device, such as a mobile phone, machine facilities, customer premises equipment (CPE), industrial equipment, vehicles, etc.; the second communication device can be a peer communication device of the first communication device, such as a network device, mobile phone, industrial equipment, vehicles, etc. In the embodiments of the present application, the first communication device can be a terminal device, and the second communication device can be a network device (i.e., uplink communication or downlink communication); alternatively, the first communication device can be a first terminal, and the second communication device can be a second terminal (i.e., sideline communication).

[0074] The terms used in the embodiments of this application are intended only to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," "third," and "fourth," etc. in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0075] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0076] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0077] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0078] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may be an evolution of an existing LTE protocol, NR protocol, Wi-Fi protocol, or a protocol related to other communication systems. The present application does not limit the protocol type.

[0079] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0080] In order to facilitate a better understanding of the embodiments of the present application, the transmission scheme configuration method related to the present application is explained.

[0081] PDSCH transmission scheme switching in multiple TRP scenarios

[0082] The channel propagation characteristics between multiple transmission points and users are relatively independent. By using repeated transmission of multiple TRPs in the spatial, time, and frequency domains, the reliability of data transmission can be improved and the transmission latency can be reduced. For an ideal backhaul scenario, the Physical Downlink Shared Channel (PDSCH) transmission of multiple TRPs is scheduled through a single downlink control information (DCI), and multiple PDSCH transmissions can be frequency division multiplexing (FDM), spatial division multiplexing (SDM), time division multiplexing (TDM), etc. Through different transmission schemes, the base station uses two Transmission Configuration Indicator (TCI) states to send PDSCH to the UE.

[0083] The switching methods for different transmission schemes are as follows:

[0084] a. The DCI indicates two TCI states, and the Radio Resource Control (RRC) signaling configures the transmission scheme to be any of the following: FDM Scheme A, FDM Scheme B, or TDM Scheme A;

[0085] b. If the DCI indicates two TCI states and the number of repetitions is configured using the repetition number field in the RRC signaling, the transmission scheme is TDM scheme B.

[0086] c. Dynamic switching: The base station can dynamically switch to a non-repeated transmission scheme by indicating one TCI state through the DCI; or, if the DCI indicates two TCI states and the DCI indicates that the demodulation reference signal (DMRS) port is in two code division multiplexing (CDM) groups through the antenna ports field, the transmission scheme is a space division multiplexing (SDM) scheme;

[0087] d. "If the base station configures the RRC parameter: repetitionNumber for PDSCH, the UE does not expect to be configured with the RRC parameter: repetitionScheme."

[0088] e. If the base station configures the RRC parameter repetitionNumber for PDSCH, or the base station configures repetitionScheme for PDSCH as 'FDM transmission scheme A (fdmSchemeA)', 'FDM transmission scheme B (fdmSchemeB)', or 'TDM transmission scheme A (tdmSchemeA)', the UE does not expect to be configured with the PDSCH aggregation factor (pdsch-AggregationFactor).

[0089] From the above limitations d and e, it can be understood that the FDM transmission scheme and the TDM transmission scheme can only be configured separately.

[0090] PUSCH transmission scheme configuration method in multiple TRP scenarios

[0091] Because Release 17 (Rel-17) only supports the Physical Uplink Shared Channel (PUSCH) to send multiple PUSCHs to two TRPs using TDM, including PUSCH repetition type A and PUSCH repetition type B, the configuration method is to configure either of the two schemes through RRC.

[0092] Each repetition of PUSCH repetition type A or PUSCH repetition type B can be sent to the same TRP (single TRP transmission) or to two TRPs (multi-TRP transmission). Single TRP transmission and multi-TRP transmission are indicated by the Sounding Reference Signal (SRS) resource set indicator field in DCI format 0-1 and DCI format 0-2.

[0093] To facilitate a better understanding of the embodiments of the present application, the uplink multi-panel / TRP transmission related to the present application is explained.

[0094] If a terminal is configured with multiple panels and supports simultaneous uplink information transmission on multiple panels, it can simultaneously transmit multiple uplink messages on multiple panels, as shown in Figure 2, to improve uplink spectrum efficiency. Uplink transmissions of multiple panels / TRPs can be scheduled using a single DCI or multiple DCIs.

[0095] In order to facilitate a better understanding of the embodiments of the present application, the problems solved by the present application are explained.

[0096] For PUSCH transmission of multiple panels / TRPs scheduled by a single DCI, the SDM scheme and the single frequency network (SFN) scheme were introduced in release 18, and PUSCH repetition type A and PUSCH repetition type B were introduced in Rel-17. In release 16, flexible switching between the above schemes was not supported in the PDSCH transmission scheme switching in the multi-TRP scenario. In addition, in Rel-17, only the dynamic switching between single-TRP transmission and multi-TRP transmission was defined, and dynamic switching between multi-TRP transmission schemes was not possible.

[0097] The throughput simulation results of the SDM scheme and the comparison scheme (single-panel transmission scheme, i.e., non-multi-panel simultaneous transmission) can be shown in Table 1, and the throughput simulation results of the SFN scheme and the comparison scheme (single-panel transmission scheme, i.e., non-multi-panel simultaneous transmission) can be shown in Table 2. It can be seen from Table 1 that when the UE is at the edge of the cell, the SDM scheme will cause the performance of edge users to degrade (-3.1%). It can be seen from Table 2 that when the UE is at the edge of the cell, the SFN scheme can bring better edge user gain (low resource occupancy +11.0%, high resource occupancy +86.7%). For the comparison between the SDM scheme and the SFN scheme in Tables 1 and 2, the SDM scheme can provide a higher average gain, while the SFN can provide a higher edge user gain, and the performance of both the SDM and SFN schemes is better than the single-panel scheme. Therefore, in order to maximize the system throughput, the present application designs a method of dynamically indicating transmission schemes such as the SDM transmission scheme and the SFN transmission scheme to improve the system throughput.

[0098] Table 1 Performance of the SDM solution compared to the single-panel solution

[0099]

[0100] Table 2 Performance of SFN solution compared with single panel solution

[0101]

[0102] It should be understood that in the embodiment of the present application, the antenna panel (Panel) is a logical entity used by the terminal device for transmission, and the transmission beams of antennas in different panels can be adjusted independently.

[0103] The technical solution of this application is described in detail below through specific embodiments.

[0104] FIG3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG3 , the wireless communication method 200 may include at least part of the following contents:

[0105] S210, the network device sends a first DCI;

[0106] S220, the terminal device receives the first DCI;

[0107] S230, the terminal device determines a transmission scheme for first uplink information according to at least one signaling in the first DCI; wherein the transmission scheme for the first uplink information is one of the following: an SDM transmission scheme, an SFN transmission scheme, a TDM transmission scheme, an FDM transmission scheme, a single TRP or a single antenna panel transmission scheme;

[0108] S240, the terminal device sends the first uplink information according to the transmission scheme of the first uplink information;

[0109] S250, the network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0110] In an embodiment of the present application, a terminal device may determine a transmission scheme for the first uplink information based on at least one signaling in the first DCI, and the transmission scheme for the first uplink information is one of the following: an SDM transmission scheme, an SFN transmission scheme, a TDM transmission scheme, an FDM transmission scheme, a single TRP, or a single antenna panel transmission scheme. Thus, the network device may dynamically indicate the uplink transmission scheme based on the first DCI, that is, the terminal device may flexibly determine the uplink transmission scheme, and since the transmission scheme for the first uplink information may be a multi-TRP or multi-panel transmission scheme such as SDM or SFN, the throughput of the system may be improved.

[0111] In some embodiments, the signaling in the at least one signaling may be an information field or a field in the first DCI.

[0112] In some embodiments, the format of the first DCI may be one of the following: DCI format 0-1, DCI format 0-2, DCI format 1_1, DCI format 1_2.

[0113] In some embodiments, the first uplink information includes but is not limited to at least one of the following: a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).

[0114] In some embodiments, the SDM transmission scheme includes SDM transmission scheme A and SDM transmission scheme B.

[0115] SDM transmission scheme A: Different transmission layers of the first uplink information are associated with different spatial parameters, respectively. For example, part of the transmission layer of the first uplink information is associated with the first spatial parameter, and another part of the transmission layer of the first uplink information is associated with the second spatial parameter. Specifically, as shown in Figure 4, in SDM transmission scheme A, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, different transmission layers of a PUSCH can be sent to different TRPs through different panels of the terminal device. For example, different transmission layers sent to different TRPs through different panels can be considered as different PUSCHs. For example, part of the transmission layer of the PUSCH sent through panel1 is associated with the first TCI state, recorded as the first PUSCH; another part of the transmission layer of the PUSCH sent through panel2 is associated with the second TCI state, recorded as the second PUSCH. It can be understood that the first PUSCH and the second PUSCH are different transmission layers of the same transmission block (TB).

[0116] SDM transmission scheme B: repeated transmission of the first uplink information (which may be different redundancy versions (RV)) is associated with different spatial parameters, for example, one repeated transmission of the first uplink information is associated with the first spatial parameter, and another repeated transmission of the first uplink information is associated with the second spatial parameter. Specifically, as shown in Figure 4, in SDM transmission scheme B, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, the repeated transmission of a PUSCH is sent to different TRPs through different panels of the terminal device. For example, the PUSCH sent by panel1 of the terminal device is associated with the first TCI state and is recorded as the first PUSCH; the PUSCH sent by panel2 of the UE is associated with the second TCI state and is recorded as the second PUSCH. It can be understood that the first PUSCH and the second PUSCH are repeated transmissions of the same TB.

[0117] In some embodiments, the FDM transmission scheme includes FDM transmission scheme A and FDM transmission scheme B.

[0118] FDM transmission scheme A: The repeated transmission of the first uplink information (which can be different RVs or the same RV) is associated with different spatial parameters, respectively. For example, one repeated transmission of the first uplink information is associated with the first spatial parameter, and another repeated transmission of the first uplink information is associated with the second spatial parameter. Specifically, as shown in Figure 5, in FDM transmission scheme A, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, the repeated transmission of a PUSCH is sent to different TRPs through different panels of the terminal device. For example, the PUSCH sent by panel1 of the terminal device is associated with the first TCI state and is recorded as the first PUSCH; the PUSCH sent by panel2 of the terminal device is associated with the second TCI state and is recorded as the second PUSCH. The first PUSCH and the second PUSCH correspond to two PUSCH transmission opportunities respectively. The two PUSCH transmission opportunities of the first PUSCH and the second PUSCH are respectively associated with non-overlapping frequency domain resources.

[0119] FDM transmission scheme B: Different information bits of the first uplink information are associated with different spatial parameters, respectively. For example, a part of the information bits of the first uplink information are associated with the first spatial parameter, and another part of the information bits of the first uplink information are associated with the second spatial parameter. Specifically, as shown in Figure 5, in FDM transmission scheme B, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, different parts of a PUSCH (for example, different information bits) are sent to different TRPs through different panels of the terminal device. For example, the information bits of the PUSCH sent by panel1 of the terminal device are associated with the first TCI state and are recorded as the first PUSCH; the information bits of the PUSCH sent by panel2 of the terminal device are associated with the second TCI state and are recorded as the second PUSCH. The first PUSCH and the second PUSCH correspond to the same PUSCH transmission opportunity. The first PUSCH and the second PUSCH are associated with non-overlapping frequency domain resources.

[0120] In some embodiments, in the SFN transmission scheme, repeated transmissions of the first uplink information are associated with different spatial parameters, respectively. For example, one repeated transmission of the first uplink information is associated with the first spatial parameter, and another repeated transmission of the first uplink information is associated with the second spatial parameter. Specifically, taking the case where the first uplink information is PUSCH and the spatial parameter is the TCI state as an example, as shown in FIG6 , repeated transmissions of a PUSCH are sent to different TRPs through different panels of the terminal device. For example, the PUSCH sent through panel 1 of the terminal device is associated with the first TCI state and is recorded as the first PUSCH; the PUSCH sent through panel 2 of the terminal device is associated with the second TCI state and is recorded as the second PUSCH.

[0121] In some embodiments, the TDM transmission scheme includes a TDM transmission scheme (repetition type A) and a TDM transmission scheme (repetition type B).

[0122] TDM transmission scheme (repetition type A): Multiple repetitions of the first uplink information are sent in multiple time slots. Some of the repetitions are associated with the first spatial parameter, and others are associated with the second spatial parameter. Specifically, as shown in Figure 7, taking the first uplink information as a PUSCH and the spatial parameter as the TCI state as an example, some of the repetitions of a PUSCH are associated with the first TCI state, and others are associated with the second TCI state.

[0123] TDM transmission scheme (repetition type B): Multiple repetitions of the first uplink information are sent over multiple transmission opportunities. Some of the repetitions are associated with first spatial parameters, while others are associated with second spatial parameters. Specifically, as shown in Figure 7 , taking the first uplink information as a PUSCH and the spatial parameter as a TCI state as an example, some of the repetitions of a PUSCH are associated with the first TCI state, while others are associated with the second TCI state.

[0124] It should be noted that the SDM transmission scheme described in the embodiments of the present application can be the above-mentioned SDM transmission scheme A or SDM transmission scheme B, the FDM transmission scheme can be the above-mentioned FDM transmission scheme A or FDM transmission scheme B, and the TDM transmission scheme can be the above-mentioned TDM transmission scheme (repetition type A) or TDM transmission scheme (repetition type B).

[0125] It should be understood that the spatial parameter in the embodiment of the present application may refer to a spatial setting or a spatial relation used for the first uplink information transmission.

[0126] In some embodiments of the present application, the spatial parameters include but are not limited to at least one of the following:

[0127] Antenna panel information, TRP information, control resource set (CORESET) group information, TCI status information, reference signal set information, reference signal information, beam information, capability set information.

[0128] In some embodiments, the antenna panel information may include an antenna panel identification (ID) or index.

[0129] In some embodiments, the TRP information may include a TRP ID or index.

[0130] In some embodiments, the CORESET group information may include an ID or index of the CORESET group.

[0131] In some embodiments, the TCI state information may include a unified TCI state, an uplink TCI state, or a joint TCI state.

[0132] In some embodiments, the reference signal set information may be synchronization signal block (SSB) resource set information or channel state information reference signal (CSI-RS) resource set information or SRS resource set information.

[0133] For example, the reference signal set information may include an index of a reference signal set, such as an index of an SSB set, an index of a CSI-RS resource, or an index of an SRS resource.

[0134] In some embodiments, the reference signal information may include SSB resource information, CSI-RS resource information, or SRS resource information. For example, the reference signal information may be an index of an SRS resource, an SSB resource, or a CSI-RS resource.

[0135] In some embodiments, the beam information may include a beam ID or index.

[0136] In the embodiment of the present application, the beam may also be referred to as a spatial domain transmission filter (Spatial domain transmission filter or Spatial domain filter for transmission), or a spatial domain reception filter (Spatial domain reception filter or Spatial domain filter for reception) or a spatial reception parameter (Spatial Rx parameter).

[0137] In some embodiments, the capability set information may include one or more parameters. For example, the capability set information may be a capability set supported by the terminal device or reference signal information associated with a capability set supported by the terminal device.

[0138] In some embodiments, the capability set information includes at least one of the following but is not limited to:

[0139] Maximum number of SRS ports, maximum number of uplink transmission layers, codebook subset type, uplink full-power transmission mode, SRS antenna switching capability, SRS carrier switching capability, number of SRS resources sent simultaneously, maximum modulation mode for uplink data transmission, maximum modulation mode for downlink data transmission, number of Hybrid Automatic Repeat Request (HARQ) processes supported by the terminal device, channel bandwidth supported by the terminal device, number of transmitting antennas supported by the terminal device, Physical Downlink Shared Channel (PDSCH) processing capability, PUSCH processing capability, power saving capability of the terminal device, coverage enhancement capability of the terminal device, data transmission rate improvement capability of the terminal device, short-delay processing capability of the terminal device, small data transmission capability of the terminal device, inactive data transmission capability of the terminal device, transmission reliability capability of the terminal device, and ultra-reliable and low-latency communication (URLLC) data transmission capability of the terminal device.

[0140] In some embodiments, the at least one signaling includes a first signaling and / or a second signaling; wherein the first signaling is used to determine one of the following transmission schemes: TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme, and the second signaling is used to determine TRP or antenna panel information.

[0141] That is, the terminal device can determine the transmission scheme of the first uplink information based on the first signaling and / or the second signaling.

[0142] In some embodiments, the first signaling may be a newly added field in the first DCI.

[0143] In some embodiments, some bit states in the second signaling are used to indicate that the terminal device uses a single TRP / single panel to send the first uplink information, and some bit states in the second signaling are used to indicate that the terminal device uses multiple TRPs / multiple panels to send the first uplink information.

[0144] In some embodiments, the second signaling is an SRS resource set indication field, or the second signaling is an indication field associated with a TCI indication. For example, the second signaling is an SRS resource set indication field, the SRS resource set indication field occupies 2 bits, the bit state of the SRS resource set indication field is 00 or 01 to indicate that a single TRP or a single antenna panel is used to send the first uplink information, and the bit state of the SRS resource set indication field is 10 or 11 to indicate that multiple TRPs or multiple antenna panels are used to send the first uplink information.

[0145] Specifically, the second signaling is an indication field associated with the TCI indication, that is, if the indication field associated with the unified TCI indication indicates two TCI states, the terminal device can further determine the transmission scheme through the first signaling.

[0146] In some embodiments, when the bit state of the second signaling is used to indicate that the first uplink information is sent using a single TRP or a single antenna panel, the first signaling occupies 0 bits, or the at least one signaling does not include the first signaling.

[0147] That is, when the bit state of the second signaling is used to indicate that the first uplink information is sent using a single TRP or a single antenna panel, the transmission scheme of the first uplink information is a single TRP or a single antenna panel transmission scheme.

[0148] It should be noted that the terminal device uses a single TRP / single panel to send the first uplink information, which can be understood as: the terminal device uses a spatial parameter to send the first uplink information, or the first uplink information is associated with a spatial parameter.

[0149] In some embodiments, when the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, the first signaling occupies at least one bit, and the different bit states of the first signaling are used to indicate at least two of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

[0150] That is, when the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, the transmission scheme of the first uplink information can be further determined based on the first signaling.

[0151] It should be noted that the terminal device uses multiple TRPs / multiple panels to send the first uplink information, which can be understood as: the terminal device uses multiple spatial parameters to send the first uplink information, or the first uplink information is associated with multiple spatial parameters.

[0152] In some embodiments, when the first signaling occupies one bit, a bit state of the first signaling is used to indicate an SDM transmission scheme, and another bit state of the first signaling is used to indicate an SFN transmission scheme.

[0153] For example, the bit state of the first signaling is 0 to indicate the SDM transmission scheme, and the bit state of the first signaling is 1 to indicate the SFN transmission scheme. For another example, the bit state of the first signaling is 1 to indicate the SDM transmission scheme, and the bit state of the first signaling is 0 to indicate the SFN transmission scheme.

[0154] In some embodiments, when the first signaling occupies two bits, different bit states of the first signaling are used to indicate at least three of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

[0155] For example, the bit state of the first signaling is 00 to indicate the SDM transmission scheme, the bit state of the first signaling is 01 to indicate the SFN transmission scheme, the bit state of the first signaling is 10 to indicate the TDM transmission scheme, and the bit state of the first signaling is 11 to indicate the FDM transmission scheme. It should be noted that the transmission schemes indicated by the various bit states of the first signaling can be flexibly adjusted, and this example does not limit this.

[0156] For example, the bit state of the first signaling is 00 to indicate the SDM transmission scheme, the bit state of the first signaling is 01 to indicate the SFN transmission scheme, the bit state of the first signaling is 10 to indicate the TDM transmission scheme, and the bit state of the first signaling is 11 reserved.

[0157] For example, the bit state of the first signaling is 00 to indicate the SDM transmission scheme, the bit state of the first signaling is 01 to indicate the SFN transmission scheme, the bit state of the first signaling is 10 to indicate the FDM transmission scheme, and the bit state of the first signaling is 11 reserved.

[0158] In some embodiments, the first signaling may also occupy more bits, which is not limited in the embodiments of the present application.

[0159] In some embodiments, the first signaling is associated with antenna port signaling.

[0160] In some embodiments, when the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SDM transmission scheme, the antenna port signaling indicates the use of DMRS ports of different CDM groups to transmit the first uplink information.

[0161] In some embodiments, when the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SFN transmission scheme, the antenna port signaling indicates the use of the same DMRS port to transmit the first uplink information.

[0162] In some embodiments, when the bit state of the second signaling is used to indicate that the first uplink information is sent using multiple TRPs or multiple antenna panels, and the first signaling indicates an SDM transmission scheme or an SFN transmission scheme, the bit state of the second signaling is exemplified as follows:

[0163] Multiple TRPs or multiple antenna panels send first uplink information, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the second spatial parameter;

[0164] Multi-TRP or multi-antenna panel sends the first uplink information, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the second spatial parameters, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the first spatial parameters.

[0165] For example, the bit status of the second signaling may be as shown in Table 3 below.

[0166] Table 3

[0167]

[0168] It should be understood that the bit status and the indicated content in the above-mentioned second signaling may not be limited to the above-mentioned examples, and the bit status and the indicated content may be flexibly adjusted, which is not limited in the embodiments of the present application.

[0169] In some embodiments, the at least one signaling includes a third signaling; wherein the third signaling is used at least to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, an FDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme.

[0170] In some embodiments, the bit state of the third signaling includes at least one of the following: a first bit state, a second bit state, a third bit state, and a fourth bit state;

[0171] The first bit state is used to indicate a first SDM transmission scheme, the second bit state is used to indicate a second SDM transmission scheme, the third bit state is used to indicate a first SFN transmission scheme, and the fourth bit state is used to indicate a second SFN transmission scheme.

[0172] Optionally, the first SDM transmission scheme may be the above-mentioned SDM transmission scheme A, and the second SDM transmission scheme may be the above-mentioned SDM transmission scheme B; or, the first SDM transmission scheme may be the above-mentioned SDM transmission scheme B, and the second SDM transmission scheme may be the above-mentioned SDM transmission scheme A.

[0173] In some embodiments, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first SDM transmission scheme are associated with the first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the first SDM transmission scheme are associated with the second spatial parameter.

[0174] In some embodiments, part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the second SDM transmission scheme are associated with the first spatial parameters, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the second SDM transmission scheme are associated with the second spatial parameters.

[0175] In some embodiments, the first SRS resource indication field and part or all of the first precoding in the first SFN transmission scheme are associated with the first spatial parameter, and the second SRS resource indication field and part or all of the second precoding in the first SFN transmission scheme are associated with the second spatial parameter.

[0176] In some embodiments, the second SRS resource indication field and part or all of the second precoding in the second SFN transmission scheme are associated with the first spatial parameters, and the first SRS resource indication field and part or all of the first precoding in the second SFN transmission scheme are associated with the second spatial parameters.

[0177] In some embodiments, the third signaling occupies at least 3 bits.In some embodiments, the third signaling is an SRS resource set indication field, or the third signaling is an indication field associated with a TCI indication.

[0178] In some embodiments, the third signaling is an SRS resource set indication field, and the SRS resource set indication field is expanded from the original 2 bits to 3 bits. The contents corresponding to the bit states of the SRS resource set indication field are exemplified as follows:

[0179] A bit state of the SRS resource set indication field indicates a single panel / TRP transmission scheme. For example, the first spatial parameter is associated with the first uplink information, that is, the first spatial parameter is associated with one or more repeated transmissions of the first uplink information. Alternatively, some or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first uplink information are associated with the first spatial parameter.

[0180] A bit state of the SRS resource set indication field indicates a single panel / TRP transmission scheme. For example, the second spatial parameter is associated with the first uplink information, that is, the second spatial parameter is associated with one or more repeated transmissions of the first uplink information. Alternatively, it can be understood that some or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first uplink information are associated with the second spatial parameter.

[0181] A bit state of the SRS resource set indication field is used to indicate a TDM transmission scheme. For example, in this TDM transmission scheme, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the second spatial parameter.

[0182] A bit state of the SRS resource set indication field is used to indicate a TDM transmission scheme. For example, in this TDM transmission scheme, part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the first spatial parameter, and part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0183] A bit state of the SRS resource set indication field is used to indicate the SDM transmission scheme. Specifically, for example, in this SDM transmission scheme, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the second spatial parameter.

[0184] A bit state of the SRS resource set indication field is used to indicate the SDM transmission scheme. Specifically, for example, in this SDM transmission scheme, part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the first spatial parameter, and part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0185] A bit state of the SRS resource set indication field is used to indicate the SFN transmission scheme. Specifically, for example, in this SFN transmission scheme, part or all of the first SRS resource indication field and the first precoding are associated with the first spatial parameter, and part or all of the second SRS resource indication field and the second precoding are associated with the second spatial parameter.

[0186] A bit state of the SRS resource set indication field is used to indicate the SFN transmission scheme. Specifically, for example, in this SFN transmission scheme, part or all of the second SRS resource indication field and the second precoding are associated with the first spatial parameters, and part or all of the first SRS resource indication field and the first precoding are associated with the second spatial parameters.

[0187] In some embodiments, the bit status of the third signaling may be as shown in Table 4 or Table 5 below.

[0188] Table 4

[0189]

[0190]

[0191] Table 5

[0192]

[0193]

[0194] It should be understood that the bit status and the indicated content in the above-mentioned third signaling may not be limited to the above-mentioned examples, and the bit status and the indicated content may be flexibly adjusted, which is not limited in the embodiments of the present application.

[0195] In some embodiments, when the bit state of the third signaling is used to indicate the first SDM transmission scheme or the second SDM transmission scheme, the first number of transmission layers is different from the second number of transmission layers. That is, when the bit state of the third signaling is used to indicate the SDM transmission scheme, the first number of transmission layers and the second number of transmission layers in the SDM transmission scheme may be different; the first DMRS port and the second DMRS port in the SDM transmission scheme may be different, or the first DMRS port and the second DMRS port in the SDM transmission scheme may belong to different CDM groups.

[0196] In some embodiments, when the bit state of the third signaling is used to indicate the first SFN transmission scheme or the second SFN transmission scheme, the first number of transmission layers is the same as the second number of transmission layers. That is, when the bit state of the third signaling is used to indicate the SFN transmission scheme, the first number of transmission layers and the second number of transmission layers in the SFN transmission scheme may be the same; and the first DMRS port and the second DMRS port in the SFN transmission scheme may be the same.

[0197] In some embodiments, the DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2, and the first DCI includes at least the third signaling.

[0198] In some embodiments, the third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink assignment information (without DL assignment). Optionally, the DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

[0199] It should be noted that when the downlink DCI indicates the TCI state, there is a possibility that it does not carry downlink allocation information. Therefore, some bits (such as the bits occupied by the third signaling) can be reinterpreted and applied without increasing the bit overhead of the DCI.

[0200] For example, the terminal device receives a third signaling, which is used to determine the transmission scheme of the PUCCH. If two uplink TCI states or two joint TCI states are indicated for a PUCCH resource (PUCCH resource) or a PUCCH resource group (PUCCH resource group), the terminal device performs multi-panel / TRP transmission of all PUCCH resources on the component carrier (CC) / bandwidth part (Band Width Part, BWP) to which the indicated TCI state is applicable. Among them, the transmission scheme of the PUCCH determined based on the third signaling includes one of a TDM transmission scheme, an FDM transmission scheme A, an FDM transmission scheme B, an SFN transmission scheme, and a CDM transmission scheme. In some embodiments, the transmission scheme of the PUCCH is configured through RRC signaling, that is, the third signaling is carried in the RRC signaling. In some embodiments, the PUCCH transmission scheme is configured through RRC signaling and can be dynamically switched through downlink DCI, for example, through available bits in the downlink DCI, that is, the downlink DCI carries the third signaling, and the downlink DCI is DCI format 1_1 / 1_2 without DL assignment.

[0201] In some embodiments, the at least one signaling includes a fourth signaling, wherein the fourth signaling is at least used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme; or, the fourth signaling is at least used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, an SFN transmission scheme.

[0202] In some embodiments, before the terminal device receives the first DCI, the terminal device receives first configuration information;

[0203] The first configuration information is used to configure one of the following: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme; or, the first configuration information is used to configure a TDM transmission scheme; or, the first configuration information is used to configure an SDM transmission scheme and an SFN transmission scheme.

[0204] In some embodiments, the first configuration information is carried via higher-layer signaling, where the higher-layer signaling may be radio resource control (RRC) signaling or media access control element (MAC CE) signaling. That is, the first configuration information is carried via one of the following: RRC signaling or MAC CE signaling.

[0205] Specifically, the network device configures a transmission scheme, such as a TDM transmission scheme, an SDM transmission scheme, or an SFN transmission scheme, through high-layer signaling. In one possibility, high-layer signaling configures one of the TDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme. In another possibility, high-layer signaling configures the TDM transmission scheme, or configures both the SDM transmission scheme and the SFN transmission scheme.

[0206] Optionally, the high-layer signaling may be RRC signaling or MAC CE. Taking RRC signaling as an example, the structure may be as follows:

[0207] TransmissionScheme-r18::=SEQUENCE{

[0208] transmissionScheme-r18ENUMERATED{sdmScheme,sfnScheme,tdmScheme},

[0209] }

[0210] Or it can be as follows:

[0211] TransmissionScheme-r18::=SEQUENCE{

[0212] transmissionScheme-r18ENUMERATED{sdmSchemeAndsfnScheme,tdmScheme},

[0213] }

[0214] In some embodiments, when the first configuration information is used to configure a TDM transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme. For example, some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

[0215] That is, if the high-level signaling indicates a TDM transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme; some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme; some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

[0216] For example, the fourth signaling occupies 1 bit.

[0217] In some embodiments, when the first configuration information is used to configure an SDM transmission scheme and / or an SFN transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, and an SFN transmission scheme. Specifically, for example, some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, some bit states in the fourth signaling are used to indicate an SDM transmission scheme, and some bit states in the fourth signaling are used to indicate an SFN transmission scheme.

[0218] That is, if the higher-layer signaling indicates an SDM transmission scheme and / or an SFN transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, or an SFN transmission scheme. Some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme; some bit states in the fourth signaling are used to indicate an SDM transmission scheme; and some bit states in the fourth signaling are used to indicate an SFN transmission scheme. For example, the fourth signaling is 2 bits, and the indicated content is as follows:

[0219] One of the bit states, for example, '00', is used to indicate that part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the first spatial parameter.

[0220] One of the states, for example, '01', is used to indicate that part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the second spatial parameter.

[0221] One of the states, such as '10', is used to indicate: SDM transmission scheme. For example, in the SDM transmission scheme, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the second spatial parameter. Or, for example, in the SDM transmission scheme, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the second spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the first spatial parameter. Or, for example, in the SDM transmission scheme, the association relationship and / or association order of the SRS resource indication field, precoding, the number of transmission layers and the first or second spatial parameter is predefined or configured by high-layer signaling.

[0222] One of the states, such as '11', is used to indicate: SFN transmission scheme. For example, in the SFN transmission scheme, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the second spatial parameter. Or, for example, in the SFN transmission scheme, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers are associated with the second spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers are associated with the first spatial parameter. Or, for example, in the SFN transmission scheme, the association relationship and / or association order of the SRS resource indication field, precoding, the number of transmission layers and the first or second spatial parameter is predefined or configured by high-layer signaling.

[0223] In some embodiments, the bit status of the fourth signaling may be as shown in Table 6 below.

[0224] Table 6

[0225]

[0226]

[0227] It should be understood that the bit status and the indicated content in the above-mentioned fourth signaling may not be limited to the above-mentioned examples, and the bit status and the indicated content may be flexibly adjusted, which is not limited in the embodiments of the present application.

[0228] In some embodiments, the at least one signaling includes a fifth signaling, wherein the fifth signaling is at least used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SFN transmission scheme.

[0229] In some embodiments, it can be understood that the fifth signaling is used to dynamically switch the transmission scheme.

[0230] The fifth signaling is the SRS resource set indication field, or the fifth signaling is a reinterpretation of the content corresponding to the bit state in the SRS resource set indication field.

[0231] In some embodiments, before the terminal device receives the first DCI, the terminal device receives second configuration information;

[0232] The second configuration information is used to configure at least one of the following transmission schemes: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme.

[0233] In some embodiments, the content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information. If the second configuration information is configured as an SDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SDM transmission scheme; if the second configuration information is configured as an SFN transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme; if the second configuration information is configured as a TDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme.

[0234] In some embodiments, the second configuration information is carried in a higher layer signaling. Optionally, the higher layer signaling may be an RRC signaling or a MAC CE.

[0235] In some embodiments, the second configuration information may be carried by multiple higher-layer signalings. For example, higher-layer signaling 1 (numberOfRepetitions) is used to configure the TDM transmission scheme, and / or higher-layer signaling 2 (sdmScheme-r18) is used to configure the SDM transmission scheme, and / or higher-layer signaling 3 (sfnScheme-r18) is used to configure the SFN transmission scheme. Taking RRC signaling as an example, structure 1 may be as follows:

[0236] PUSCH-Allocation-r18::=SEQUENCE{

[0237] numberOfRepetitions ENUMERATED{n1,n2,n3,n4,n7,n8,n12,n16}OPTIONAL,

[0238] sdmScheme-r18OPTIONAL,

[0239] sfnScheme-r18OPTIONAL,

[0240] }

[0241] Among them, high-level signaling 1 is used to configure the number of transmissions of the first uplink information under the TDM scheme. It should be understood that only one of the configurations of high-level signaling 1, high-level signaling 2, and high-level signaling 3 is effective. For example, if high-level signaling 2 is configured for the SDM transmission scheme, high-level signaling 1 and high-level signaling 3 are not configured; or if high-level signaling 1 is configured for n1, high-level signaling 3 is not configured.

[0242] In some embodiments, the second configuration information may be carried by multiple higher-layer signalings. For example, higher-layer signaling 4 (numberOfRepetitions) is used to configure the TDM transmission scheme, and / or higher-layer signaling 5 (transmissionScheme) is used to configure the SDM transmission scheme (sdmScheme) or the SFN transmission scheme (sfnScheme). Taking RRC signaling as an example, structure 2 may be as follows:

[0243] PUSCH-Allocation-r18::=SEQUENCE{

[0244] numberOfRepetitions ENUMERATED{n1,n2,n3,n4,n7,n8,n12,n16}OPTIONAL,

[0245] transmissionScheme ENUMERATED{sdmScheme,sfnScheme}OPTIONAL,

[0246] }

[0247] Among them, high-layer signaling 4 is used to configure the number of transmissions of the first uplink information under the TDM scheme. It should be understood that if high-layer signaling 4 is configured to a state other than n1, high-layer signaling 5 is not configured; if high-layer signaling 5 is configured for the SDM transmission scheme or SFN transmission scheme, high-layer signaling 4 is configured to n1.

[0248] In some embodiments, the second configuration information may be carried by a higher layer signaling. For example, higher layer signaling 6 (transmissionScheme-r18) is used to configure the TDM transmission scheme (tdmScheme), the SDM transmission scheme (sdmScheme), or the SFN transmission scheme (sfnScheme). Taking RRC signaling as an example, structure 3 may be as follows:

[0249] TransmissionScheme-r18::=SEQUENCE{

[0250] transmissionScheme-r18ENUMERATED{sdmScheme,sfnScheme,tdmScheme},

[0251] }

[0252] If the second configuration information is configured for the SDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SDM transmission scheme. Some bit states in the fifth signaling are used to indicate the single TRP or single antenna panel transmission scheme; some bit states in the fifth signaling are used to indicate the SDM transmission scheme. For example, the fifth signaling is 2 bits, and the content indicated is as follows, Example 1:

[0253] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0254] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0255] One of the bit states, for example, '10', is used to indicate the SDM transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter.

[0256] One of the bit states, for example, '11', is a reserved bit state.

[0257] Example 2:

[0258] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0259] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0260] One bit state, for example, '10', indicates the SDM transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter. The corresponding power control mode is Mode 1. In Power Control Mode 1, the maximum transmit power per panel is 23dBm. The total maximum transmit power of the two panels is 26dBm.

[0261] One bit state, for example, '11', indicates the SDM transmission scheme. Part or all of the first SRS resource indicator field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; part or all of the second SRS resource indicator field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter. The corresponding power control mode is Mode 2. Power control mode 1 specifies a maximum combined transmit power of 23 dBm for both panels.

[0262] Example 2a:

[0263] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0264] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0265] One of the bit states, for example, '10', is used to indicate the SDM transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter.

[0266] One of the bit states, for example, '11', is used to indicate the SDM transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the first spatial parameter.

[0267] If the second configuration information is configured as an SFN transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme. Some bit states in the fifth signaling are used to indicate the single TRP or single antenna panel transmission scheme; some bit states in the fifth signaling are used to indicate the SFN transmission scheme. For example, the fifth signaling is 2 bits, and the content indicated is as follows, Example 3:

[0268] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0269] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0270] One of the bit states, for example, '10', is used to indicate the SFN transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter.

[0271] One of the bit states, for example, '11', is a reserved bit state.

[0272] Example 4:

[0273] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0274] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0275] One bit state, for example, '10', indicates the SFN transmission scheme. Part or all of the first SRS resource indicator field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; part or all of the second SRS resource indicator field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter. The corresponding power control mode is Mode 1. In Power Control Mode 1, the maximum transmit power per panel is 23dBm. The total maximum transmit power of the two panels is 26dBm.

[0276] One bit state, for example, '11', indicates the SFN transmission scheme. Part or all of the first SRS resource indicator field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; part or all of the second SRS resource indicator field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter. The corresponding power control mode is Mode 2. In Power Control Mode 1, the maximum combined transmit power of the two panels is 23 dBm.

[0277] Example 4a:

[0278] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0279] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0280] One of the bit states, for example, '10', is used to indicate the SFN transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter.

[0281] One of the bit states, for example, '11', is used to indicate the SFN transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the first spatial parameter.

[0282] If the second configuration information specifies a TDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme. Some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme; some bit states in the fifth signaling are used to indicate a TDM transmission scheme. For example, the fifth signaling is 2 bits long, and the indicated content is as follows, Example 5:

[0283] One of the bit states, for example, '00', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter.

[0284] One of the bit states, for example, '01', is used to indicate a single TRP or single antenna panel transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter.

[0285] One of the bit states, for example, '10', is used to indicate a TDM transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the first spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the second spatial parameter.

[0286] One of the bit states, for example, '11', is used to indicate a TDM transmission scheme. Part or all of the first SRS resource indication field, the first precoding field, and the first number of transmission layers are associated with the second spatial parameter; and part or all of the second SRS resource indication field, the second precoding field, and the second number of transmission layers are associated with the first spatial parameter.

[0287] In some embodiments, the bit status and content of the fifth signaling may be as shown in Tables 7, 8, 9, 10, and 11 below.

[0288] Table 7

[0289]

[0290] Table 8

[0291]

[0292]

[0293] Table 9

[0294]

[0295] Table 10

[0296]

[0297]

[0298] Table 11

[0299]

[0300] Table 12

[0301]

[0302]

[0303] Table 13

[0304]

[0305] It should be understood that the bit status and the indicated content in the above-mentioned fifth signaling may not be limited to the above-mentioned examples, and the bit status and the indicated content may be flexibly adjusted, which is not limited in the embodiments of the present application.

[0306] In some embodiments, if the fifth signaling indicates a single TRP or single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers are determined according to the first maximum number of transmission layers. Determining the first precoding and / or the first number of transmission layers according to the first maximum number of transmission layers can be understood as determining a predefined table associated with the first precoding and / or the first number of transmission layers. The first maximum number of transmission layers is the maximum number of transmission layers supported by the terminal device, or the maximum number of ranks, or the maximum number of multiple input multiple output (MIMO) layers.

[0307] In some embodiments, if the fifth signaling indicates an SDM transmission scheme or an SFN transmission scheme, the first precoding and / or the first number of transmission layers, as well as the second precoding and / or the second number of transmission layers are determined based on the second maximum number of transmission layers and the third maximum number of transmission layers. Determining the first precoding and / or the first number of transmission layers based on the second maximum number of transmission layers can be understood as determining a predefined table associated with the first precoding and / or the first number of transmission layers. Determining the second precoding and / or the second number of transmission layers based on the third maximum number of transmission layers can be understood as determining a predefined table associated with the second precoding and / or the second number of transmission layers. The second maximum number of transmission layers is the maximum number of transmission layers, or the maximum number of ranks, or the maximum MIMO layer associated with the first spatial parameter. The third maximum number of transmission layers is the maximum number of transmission layers, or the maximum number of ranks, or the maximum number of MIMO layers associated with the second spatial parameter.

[0308] In some embodiments, before the terminal device receives the first DCI, the terminal device sends first information;

[0309] The first information is used to determine the at least one signaling in the first DCI, and the first information includes at least one of the following: channel state information (CSI), path loss information, power margin information, SRS reference signal, channel state information reference signal (CSI-RS) reference signal.

[0310] In some embodiments, the first information may be information characterizing transmission quality or information used to measure transmission quality.

[0311] Specifically, after receiving the first information, if the first information meets the conditions, the network device sends the first DCI to the terminal device to dynamically indicate the transmission scheme of the first uplink information.

[0312] For example, if the information contained in the first information is less than the first threshold, the network device sends the first DCI to the terminal device, dynamically indicating the transmission scheme of the first uplink information, for example, indicating that the transmission scheme of the first uplink information is the SFN transmission scheme.

[0313] For another example, if the transmission quality determined based on the first information is less than the first threshold, or if the transmission quality measured by the first information is less than the first threshold, the network device sends the first DCI to the terminal device, dynamically indicating the transmission scheme of the first uplink information, for example, indicating that the transmission scheme of the first uplink information is the SFN transmission scheme.

[0314] In some embodiments, before the terminal device receives the first DCI, the terminal device sends second information associated with the first space parameter and second information associated with the second space parameter;

[0315] The second information associated with the first spatial parameter and the second information associated with the second spatial parameter are used to determine the at least one signaling in the first DCI, and the second information includes at least one of the following: CSI, path loss information, power headroom information, SRS reference signal, CSI-RS reference signal.

[0316] In some embodiments, the first information may be information characterizing transmission quality or information used to measure transmission quality.

[0317] Specifically, after receiving the second information, if the second information meets the conditions, the network device sends the first DCI to the terminal device to dynamically indicate the transmission scheme of the first uplink information.

[0318] For example, if the information contained in the second information associated with the first spatial parameter and the information contained in the second information associated with the second spatial parameter are both lower than the second threshold, the network device sends the first DCI to the terminal device, dynamically indicating the transmission scheme of the first uplink information, for example, indicating that the transmission scheme of the first uplink information is the SFN transmission scheme.

[0319] For another example, if the transmission quality determined based on the second information associated with the first spatial parameter and the second information associated with the second spatial parameter is both lower than the second threshold, or if the transmission quality measured by the second information associated with the first spatial parameter and the second information associated with the second spatial parameter is both lower than the second threshold, the network device sends the first DCI to the terminal device, dynamically indicating the transmission scheme of the first uplink information, for example, indicating that the transmission scheme of the first uplink information is the SFN transmission scheme.

[0320] That is, in an embodiment of the present application, the network device can dynamically indicate the transmission scheme of the first uplink information based on the information reported by the terminal device.

[0321] Therefore, in an embodiment of the present application, the terminal device can determine the transmission scheme of the first uplink information based on at least one signaling in the first DCI, and the transmission scheme of the first uplink information is one of the following: SDM transmission scheme, SFN transmission scheme, TDM transmission scheme, FDM transmission scheme, single TRP or single antenna panel transmission scheme. Thus, the network device can dynamically indicate the uplink transmission scheme based on the first DCI, that is, the terminal device can flexibly determine the uplink transmission scheme, and because the transmission scheme of the first uplink information can be a multi-TRP or multi-panel transmission scheme such as SDM and SFN, the system throughput can be improved.

[0322] FIG8 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG8 , the wireless communication method 300 may include at least part of the following contents:

[0323] S310, the network device sends SRS resource indication information;

[0324] S320, the terminal device receives the SRS resource indication information;

[0325] S330, the terminal device determines a transmission scheme for the first uplink information according to the number of TCI states associated with the SRS resource indicated by the SRS resource indication information; wherein the transmission scheme for the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, and an SFN transmission scheme;

[0326] S340, the terminal device sends the first uplink information according to the transmission scheme of the first uplink information;

[0327] S350, the network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0328] In an embodiment of the present application, a terminal device can determine a transmission scheme for the first uplink information based on the number of TCI states associated with the SRS resource indicated by the SRS resource indication information, and the transmission scheme for the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme. Thus, the terminal device can flexibly determine the uplink transmission scheme and improve system throughput.

[0329] In this embodiment of the present application, the SFN transmission scheme is associated with one SRS resource set and one SRS resource indication field. That is, the SFN transmission scheme of the first uplink information can be configured with only one SRS resource set and one SRS resource indication field to ensure that the number of SRS ports associated with the SFN transmission of the first uplink information is consistent.

[0330] In some embodiments, the first uplink information includes but is not limited to at least one of the following: PUCCH, PUSCH.

[0331] In some embodiments, the SRS resource indication information may be an SRS resource indication field.

[0332] For example, the SRS resource set indication field occupies 2 bits, and the bit state of the SRS resource set indication field is 00 or 01 to indicate that a single TRP or a single antenna panel is used to send the first uplink information, and the bit state of the SRS resource set indication field is 10 or 11 to indicate that multiple TRPs or multiple antenna panels are used to send the first uplink information.

[0333] In some embodiments, the terminal device determines, according to the number of TCI states associated with the SRS resource indicated by the SRS resource indication information, a transmission scheme for the first uplink information, including:

[0334] In a case where the SRS resource indicated by the SRS resource indication information is associated with a TCI state, the terminal device determines that the transmission scheme of the first uplink information is a single TRP or a single antenna panel transmission scheme; and / or,

[0335] In a case where the SRS resource indicated by the SRS resource indication information is associated with two TCI states, the terminal device determines that the transmission scheme of the first uplink information is the SFN transmission scheme.

[0336] In some embodiments, a Transmit Precoding Matrix Indicator (TPMI) of the SFN transmission scheme of the first uplink information needs to be independently indicated.

[0337] In some embodiments, the SRS resource indicated by the SRS resource indication information belongs to a first SRS resource set or a second SRS resource set; wherein each SRS resource in the first SRS resource set is associated with two TCI states, and each SRS resource in the second SRS resource set is associated with one TCI state.

[0338] For example, the first SRS resource set may be an SRS resource set dedicated to the SFN configured by the network device, and the second SRS resource set may be an SRS resource set dedicated to a single TRP or a single antenna panel configured by the network device.

[0339] For example, if the SRS resource indicated by the SRS resource indication information belongs to the first SRS resource set, the terminal device determines that the transmission scheme of the first uplink information is the SFN transmission scheme; if the SRS resource indicated by the SRS resource indication information belongs to the second SRS resource set, the terminal device determines that the transmission scheme of the first uplink information is a single TRP or a single antenna panel transmission scheme.

[0340] In some embodiments, the first SRS resource set and / or the second SRS resource set are configured through RRC signaling, and / or the first SRS resource set and / or the second SRS resource set are updated or adjusted through Media Access Control Control Element (MAC CE) signaling.

[0341] In some embodiments, the first uplink information is transmitted via a codebook-based PUSCH, a PUSCH transmission scheme is an SFN transmission scheme, and an SRS resource set associated with the PUSCH belongs to a first SRS resource set.

[0342] In some embodiments, the first uplink information is transmitted using a non-codebook PUSCH, the PUSCH transmission scheme is an SFN transmission scheme, the SRS resource set associated with the PUSCH belongs to a first SRS resource set, and the SRS resources corresponding to the PUSCH are all associated with two TCI states.

[0343] In some embodiments, the signaling format for configuring an SRS resource set (SRS-ResourceSet) by a network device through RRC signaling may be as follows:

[0344] SRS-ResourceSet::=SEQUENCE{

[0345] srs-ResourceSetId SRS-ResourceSetId,

[0346] srs-ResourceIdList SEQUENCE(SIZE(1..maxNrofSRS-ResourcesPerSet))OF SRS-ResourceId OPTIONAL,

[0347] …

[0348] followUnifiedTCIstateSRS ENUMERATED{1stIndicatedTCI,2ndIndicatedTCI,1stAnd2ndIndicatedTCIstate,none}OPTIONAL–Need R

[0349] }

[0350] Among them, in the above-mentioned SRS-ResourceSet, if the unified TCI state (followUnifiedTCIstateSRS) field associated with SRS takes 1stIndicatedTCI or 2ndIndicatedTCI, it means that each SRS resource in the SRS resource set configured by the SRS-ResourceSet is associated with one TCI state, that is, the second SRS resource set is configured in this case; if the unified TCI state (followUnifiedTCIstateSRS) field associated with SRS takes 1stAnd2ndIndicatedTCIstate, it means that each SRS resource in the SRS resource set configured by the SRS-ResourceSet is associated with two TCI states, that is, the first SRS resource set is configured in this case.

[0351] In some embodiments, the MAC CE signaling for updating or adjusting the first SRS resource set and / or the second SRS resource set may include one or more of the following information:

[0352] Serving cell ID;

[0353] BWP ID (BWP ID where the SRS resource set is located);

[0354] SRS resource set ID (SRS resource set ID);

[0355] Associated TCI state.

[0356] The associated TCI status includes one of the following:

[0357] A first TCI state (such as a first uplink TCI state (1st indicated UL TCI state) or a first joint TCI state (1st indicated Joint TCI state));

[0358] A second TCI state (such as a second uplink TCI state (2nd indicated UL TCI state) or a second joint TCI state (2nd indicated Joint TCI state));

[0359] A first TCI state and a second TCI state (such as a first uplink TCI state (1st indicated UL TCI state) and a second uplink TCI state (2nd indicated UL TCI state), or a first joint TCI state (1st indicated Joint TCI state) and a second joint TCI state (2nd indicated Joint TCI state)).

[0360] In some embodiments, the SRS resource indicated by the SRS resource indication information belongs to the first SRS resource group or the second SRS resource group in the third SRS resource set; wherein each SRS resource in the first SRS resource group is associated with two TCI states, and each SRS resource in the second SRS resource group is associated with one TCI state.

[0361] That is, a portion of the SRS resources in the third SRS resource set is configured to be associated with two TCI states, and a portion of the SRS resources in the third SRS resource set is configured to be associated with one TCI state.

[0362] It should be noted that the third SRS resource set may also include other SRS resource groups, which is not limited in this embodiment of the present application.

[0363] In some embodiments, the first SRS resource group and / or the second SRS resource group are configured through RRC signaling, and / or the first SRS resource group and / or the second SRS resource group are updated or adjusted through MAC CE signaling.

[0364] In some embodiments, the first uplink information is transmitted via a codebook-based PUSCH, the PUSCH transmission scheme is an SFN transmission scheme, the PUSCH is associated with an SRS resource indicated by SRS resource indication information, and the SRS resource is associated with two TCI states.

[0365] In some embodiments, the first uplink information is transmitted via a non-codebook-based PUSCH, the PUSCH transmission scheme is an SFN transmission scheme, the PUSCH is associated with multiple SRS resources indicated by SRS resource indication information, and the multiple SRS resources are associated with two TCI states.

[0366] In some embodiments, the signaling format for configuring an SRS resource set (SRS-ResourceSet) by a network device through RRC signaling may be as follows:

[0367] SRS-ResourceSet::=SEQUENCE{

[0368] srs-ResourceSetId SRS-ResourceSetId,

[0369] srs-ResourceIdList SEQUENCE(SIZE(1..maxNrofSRS-ResourcesPerSet))OF SRS-ResourceId OPTIONAL,

[0370] …

[0371] SRS_ResourceGroup1SEQUENCE{

[0372] followUnifiedTCIstateSRS ENUMERATED{1stIndicatedTCIstate,2ndIndicatedTCI state,1st and2ndIndicatedTCIsate}OPTIONAL

[0373] }

[0374] SRS_ResourceGroup2SEQUENCE{

[0375] followUnifiedTCIstateSRS ENUMERATED{1stIndicatedTCIstate,2ndIndicatedTCI state,1st and2ndIndicatedTCIsate}OPTIONAL

[0376] }

[0377] }

[0378] Among them, in the above-mentioned SRS-ResourceSet, the SRS resources in SRS_ResourceGroup1 can be configured to be associated with the first TCI state (1stIndicatedTCIstate), the second TCI state (2ndIndicatedTCI state), or the first TCI state and the second TCI state (1stand2ndIndicatedTCIsate). The SRS resources in SRS_ResourceGroup2 can be configured to be associated with the first TCI state (1stIndicatedTCIstate), the second TCI state (2ndIndicatedTCI state), or the first TCI state and the second TCI state (1stand2ndIndicatedTCIsate).

[0379] Therefore, in an embodiment of the present application, a terminal device can determine a transmission scheme for the first uplink information based on the number of TCI states associated with the SRS resource indicated by the SRS resource indication information, and the transmission scheme for the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme. Thus, the terminal device can flexibly determine the uplink transmission scheme and improve system throughput.

[0380] The above text, in combination with Figures 3 to 8, describes in detail the method embodiment of the present application. The following text, in combination with Figures 9 to 13, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.

[0381] FIG9 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG9 , the terminal device 400 includes:

[0382] The communication unit 410 is configured to receive first downlink control information DCI;

[0383] The processing unit 420 is configured to determine a transmission scheme for the first uplink information based on at least one signaling in the first DCI; wherein the transmission scheme for the first uplink information is one of the following: a spatial division multiplexing (SDM) transmission scheme, a single frequency network (SFN) transmission scheme, a time division multiplexing (TDM) transmission scheme, a frequency division multiplexing (FDM) transmission scheme, a single transmission and reception point (TRP), or a single antenna panel transmission scheme;

[0384] The communication unit 410 is further configured to send the first uplink information according to a transmission scheme of the first uplink information.

[0385] In some embodiments, the at least one signaling includes a first signaling and / or a second signaling; wherein the first signaling is used to determine one of the following transmission schemes: TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme, and the second signaling is used to determine TRP or antenna panel information.

[0386] In some embodiments, when the bit state of the second signaling is used to indicate that a single TRP or a single antenna panel is used to send the first uplink information, the first signaling occupies 0 bits, or the at least one signaling does not include the first signaling; and / or,

[0387] When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, the first signaling occupies at least one bit, and the different bit states of the first signaling are used to indicate at least two of the TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, and SFN transmission scheme.

[0388] In some embodiments, when the first signaling occupies one bit, a bit state of the first signaling is used to indicate an SDM transmission scheme, and another bit state of the first signaling is used to indicate an SFN transmission scheme.

[0389] In some embodiments, when the first signaling occupies two bits, different bit states of the first signaling are used to indicate at least three of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

[0390] In some embodiments, the first signaling is associated with antenna port signaling.

[0391] In some embodiments, when the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SDM transmission scheme, the antenna port signaling indicates the use of demodulation reference signal DMRS ports of different code division multiplexing (CDM) groups to transmit the first uplink information; or

[0392] When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SFN transmission scheme, the antenna port signaling indicates the use of the same DMRS port to transmit the first uplink information.

[0393] In some embodiments, the second signaling is a sounding reference signal SRS resource set indication field, or the second signaling is an indication field associated with a transmission configuration indication TCI indication.

[0394] In some embodiments, the at least one signaling includes a third signaling; wherein the third signaling is used at least to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, an FDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme.

[0395] In some embodiments, the bit state of the third signaling includes at least one of the following: a first bit state, a second bit state, a third bit state, and a fourth bit state;

[0396] The first bit state is used to indicate a first SDM transmission scheme, the second bit state is used to indicate a second SDM transmission scheme, the third bit state is used to indicate a first SFN transmission scheme, and the fourth bit state is used to indicate a second SFN transmission scheme.

[0397] In some embodiments, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first SDM transmission scheme are associated with a first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the first SDM transmission scheme are associated with a second spatial parameter; and / or

[0398] Part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the second SDM transmission scheme are associated with the first spatial parameter, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the second SDM transmission scheme are associated with the second spatial parameter; and / or

[0399] The first SRS resource indication field and part or all of the first precoding in the first SFN transmission scheme are associated with the first spatial parameter, and the second SRS resource indication field and part or all of the second precoding in the first SFN transmission scheme are associated with the second spatial parameter; and / or,

[0400] The second SRS resource indication field and part or all of the second precoding in the second SFN transmission scheme are associated with the first spatial parameters, and the first SRS resource indication field and part or all of the first precoding in the second SFN transmission scheme are associated with the second spatial parameters.

[0401] In some embodiments, when the bit state of the third signaling is used to indicate the first SDM transmission scheme or the second SDM transmission scheme, the first number of transmission layers is different from the second number of transmission layers; and / or,

[0402] In a case where the bit state of the third signaling is used to indicate the first SFN transmission scheme or the second SFN transmission scheme, the first number of transmission layers is the same as the second number of transmission layers.

[0403] In some embodiments, the third signaling occupies at least 3 bits.

[0404] In some embodiments, the third signaling is an SRS resource set indication field, or the third signaling is an indication field associated with a TCI indication.

[0405] In some embodiments, the DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2.

[0406] In some embodiments, the third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink allocation information.

[0407] In some embodiments, the DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

[0408] In some embodiments, the at least one signaling includes fourth signaling;

[0409] Among them, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme, SFN transmission scheme.

[0410] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to receive first configuration information;

[0411] The first configuration information is used to configure one of the following: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme; or, the first configuration information is used to configure a TDM transmission scheme; or, the first configuration information is used to configure an SDM transmission scheme and an SFN transmission scheme.

[0412] In some embodiments, when the first configuration information is used to configure a TDM transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme.

[0413] In some embodiments, some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

[0414] In some embodiments, when the first configuration information is used to configure the SDM transmission scheme and / or the SFN transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, or an SFN transmission scheme.

[0415] In some embodiments, some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, some bit states in the fourth signaling are used to indicate an SDM transmission scheme, and some bit states in the fourth signaling are used to indicate an SFN transmission scheme.

[0416] In some embodiments, the first configuration information is carried by one of the following:

[0417] Radio resource control RRC signaling, media access control layer control element MAC CE signaling.

[0418] In some embodiments, the at least one signaling includes a fifth signaling;

[0419] Among them, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SFN transmission scheme.

[0420] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to receive second configuration information;

[0421] The second configuration information is used to configure at least one of the following transmission schemes: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme;

[0422] The content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information.

[0423] In some embodiments, if the second configuration information is configured as an SDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme;

[0424] If the second configuration information is configured as an SFN transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme;

[0425] If the second configuration information is configured as a TDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme.

[0426] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SDM transmission scheme.

[0427] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SFN transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SFN transmission scheme.

[0428] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate a TDM transmission scheme.

[0429] In some embodiments, if the fifth signaling is used to determine a single TRP or single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers are determined based on the first maximum number of transmission layers.

[0430] In some embodiments, if the fifth signaling is used to determine the SDM transmission scheme or the SFN transmission scheme, the first precoding and / or the first number of transmission layers, and the second precoding and / or the second number of transmission layers are determined based on the second maximum number of transmission layers and the third maximum number of transmission layers.

[0431] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to send first information;

[0432] The first information is used to determine the at least one signaling in the first DCI, and the first information includes at least one of the following: channel state information CSI, path loss information, power margin information, SRS reference signal, channel state information reference signal CSI-RS reference signal.

[0433] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to send second information associated with the first space parameter and second information associated with the second space parameter;

[0434] The second information associated with the first spatial parameter and the second information associated with the second spatial parameter are used to determine the at least one signaling in the first DCI, and the second information includes at least one of the following: CSI, path loss information, power headroom information, SRS reference signal, CSI-RS reference signal.

[0435] In some embodiments, the first uplink information includes at least one of the following:

[0436] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0437] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0438] It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the terminal device 400 are respectively for realizing the corresponding processes of the terminal device in the method 200 shown in Figure 3. For the sake of brevity, they will not be repeated here.

[0439] FIG10 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in FIG10 , the network device 500 includes:

[0440] The communication unit 510 is configured to send first downlink control information (DCI); wherein at least one signaling in the first DCI is used by the terminal device to determine a transmission scheme for first uplink information, where the transmission scheme for the first uplink information is one of the following: a spatial division multiplexing (SDM) transmission scheme, a single frequency network (SFN) transmission scheme, a time division multiplexing (TDM) transmission scheme, a frequency division multiplexing (FDM) transmission scheme, a single transmission and reception point (TRP), or a single antenna panel transmission scheme;

[0441] The communication unit 510 is further configured to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0442] In some embodiments, the at least one signaling includes a first signaling and / or a second signaling; wherein the first signaling is used to determine one of the following transmission schemes: TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme, and the second signaling is used to determine TRP or antenna panel information.

[0443] In some embodiments, when the bit state of the second signaling is used to indicate that a single TRP or a single antenna panel is used to send the first uplink information, the first signaling occupies 0 bits, or the at least one signaling does not include the first signaling; and / or,

[0444] When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, the first signaling occupies at least one bit, and the different bit states of the first signaling are used to indicate at least two of the TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, and SFN transmission scheme.

[0445] In some embodiments, when the first signaling occupies one bit, a bit state of the first signaling is used to indicate an SDM transmission scheme, and another bit state of the first signaling is used to indicate an SFN transmission scheme.

[0446] In some embodiments, when the first signaling occupies two bits, different bit states of the first signaling are used to indicate at least three of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

[0447] In some embodiments, the first signaling is associated with antenna port signaling.

[0448] In some embodiments, when the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SDM transmission scheme, the antenna port signaling indicates the use of demodulation reference signal DMRS ports of different code division multiplexing (CDM) groups to transmit the first uplink information; or

[0449] When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SFN transmission scheme, the antenna port signaling indicates the use of the same DMRS port to transmit the first uplink information.

[0450] In some embodiments, the second signaling is a sounding reference signal SRS resource set indication field, or the second signaling is an indication field associated with a transmission configuration indication TCI indication.

[0451] In some embodiments, the at least one signaling includes a third signaling; wherein the third signaling is used at least to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, an FDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme.

[0452] In some embodiments, the bit state of the third signaling includes at least one of the following: a first bit state, a second bit state, a third bit state, and a fourth bit state;

[0453] The first bit state is used to indicate a first SDM transmission scheme, the second bit state is used to indicate a second SDM transmission scheme, the third bit state is used to indicate a first SFN transmission scheme, and the fourth bit state is used to indicate a second SFN transmission scheme.

[0454] In some embodiments, part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first SDM transmission scheme are associated with a first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the first SDM transmission scheme are associated with a second spatial parameter; and / or

[0455] Part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the second SDM transmission scheme are associated with the first spatial parameter, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the second SDM transmission scheme are associated with the second spatial parameter; and / or

[0456] The first SRS resource indication field and part or all of the first precoding in the first SFN transmission scheme are associated with the first spatial parameter, and the second SRS resource indication field and part or all of the second precoding in the first SFN transmission scheme are associated with the second spatial parameter; and / or,

[0457] The second SRS resource indication field and part or all of the second precoding in the second SFN transmission scheme are associated with the first spatial parameters, and the first SRS resource indication field and part or all of the first precoding in the second SFN transmission scheme are associated with the second spatial parameters.

[0458] In some embodiments, when the bit state of the third signaling is used to indicate the first SDM transmission scheme or the second SDM transmission scheme, the first number of transmission layers is different from the second number of transmission layers; and / or,

[0459] In a case where the bit state of the third signaling is used to indicate the first SFN transmission scheme or the second SFN transmission scheme, the first number of transmission layers is the same as the second number of transmission layers.

[0460] In some embodiments, the third signaling occupies at least 3 bits.

[0461] In some embodiments, the third signaling is an SRS resource set indication field, or the third signaling is an indication field associated with a TCI indication.

[0462] In some embodiments, the DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2.

[0463] In some embodiments, the third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink allocation information.

[0464] In some embodiments, the DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

[0465] In some embodiments, the at least one signaling includes fourth signaling;

[0466] Among them, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme, SFN transmission scheme.

[0467] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to send first configuration information;

[0468] The first configuration information is used to configure one of the following: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme; or, the first configuration information is used to configure a TDM transmission scheme; or, the first configuration information is used to configure an SDM transmission scheme and an SFN transmission scheme.

[0469] In some embodiments, when the first configuration information is used to configure a TDM transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme.

[0470] In some embodiments, some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

[0471] In some embodiments, when the first configuration information is used to configure the SDM transmission scheme and / or the SFN transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, or an SFN transmission scheme.

[0472] In some embodiments, some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, some bit states in the fourth signaling are used to indicate an SDM transmission scheme, and some bit states in the fourth signaling are used to indicate an SFN transmission scheme.

[0473] In some embodiments, the first configuration information is carried by one of the following:

[0474] Radio resource control RRC signaling, media access control layer control element MAC CE signaling.

[0475] In some embodiments, the at least one signaling includes a fifth signaling;

[0476] Among them, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SFN transmission scheme.

[0477] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to send second configuration information;

[0478] The second configuration information is used to configure at least one of the following transmission schemes: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme;

[0479] The content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information.

[0480] In some embodiments, if the second configuration information is configured as an SDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme;

[0481] If the second configuration information is configured as an SFN transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme;

[0482] If the second configuration information is configured as a TDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme.

[0483] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SDM transmission scheme.

[0484] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SFN transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SFN transmission scheme.

[0485] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate a TDM transmission scheme.

[0486] In some embodiments, if the fifth signaling is used to determine a single TRP or single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers are determined based on the first maximum number of transmission layers.

[0487] In some embodiments, if the fifth signaling is used to determine the SDM transmission scheme or the SFN transmission scheme, the first precoding and / or the first number of transmission layers, and the second precoding and / or the second number of transmission layers are determined based on the second maximum number of transmission layers and the third maximum number of transmission layers.

[0488] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to receive first information;

[0489] The first information is used to determine the at least one signaling in the first DCI, and the first information includes at least one of the following: channel state information CSI, path loss information, power margin information, SRS reference signal, channel state information reference signal CSI-RS reference signal.

[0490] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to receive second information associated with the first space parameter and second information associated with the second space parameter;

[0491] The second information associated with the first spatial parameter and the second information associated with the second spatial parameter are used to determine the at least one signaling in the first DCI, and the second information includes at least one of the following: CSI, path loss information, power headroom information, SRS reference signal, CSI-RS reference signal.

[0492] In some embodiments, the first uplink information includes at least one of the following:

[0493] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0494] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0495] It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the network device 500 are respectively for implementing the corresponding processes of the network device in the method 200 shown in Figure 3. For the sake of brevity, they will not be repeated here.

[0496] FIG11 shows a schematic block diagram of a terminal device 600 according to an embodiment of the present application. As shown in FIG11 , the terminal device 600 includes:

[0497] The communication unit 610 is configured to receive sounding reference signal SRS resource indication information;

[0498] The processing unit 620 is configured to determine a transmission scheme for the first uplink information based on the number of transmission configuration indication (TCI) states associated with the SRS resource indicated by the SRS resource indication information; wherein the transmission scheme for the first uplink information is one of the following: a single transmission and reception point (TRP) or single antenna panel transmission scheme, or a single frequency network (SFN) transmission scheme;

[0499] The communication unit 610 is further configured to send the first uplink information according to a transmission scheme of the first uplink information.

[0500] In some embodiments, the processing unit 620 is specifically configured to:

[0501] In a case where the SRS resource indicated by the SRS resource indication information is associated with a TCI state, determining that the transmission scheme of the first uplink information is a single TRP or a single antenna panel transmission scheme; and / or,

[0502] In a case where the SRS resource indicated by the SRS resource indication information is associated with two TCI states, it is determined that the transmission scheme of the first uplink information is the SFN transmission scheme.

[0503] In some embodiments, the SRS resource indicated by the SRS resource indication information belongs to a first SRS resource set or a second SRS resource set; wherein each SRS resource in the first SRS resource set is associated with two TCI states, and each SRS resource in the second SRS resource set is associated with one TCI state.

[0504] In some embodiments, the first SRS resource set and / or the second SRS resource set are configured via radio resource control RRC signaling, and / or the first SRS resource set and / or the second SRS resource set are updated or adjusted via media access control layer control element MAC CE signaling.

[0505] In some embodiments, the SRS resource indicated by the SRS resource indication information belongs to the first SRS resource group or the second SRS resource group in the third SRS resource set;

[0506] Each SRS resource in the first SRS resource group is associated with two TCI states, and each SRS resource in the second SRS resource group is associated with one TCI state.

[0507] In some embodiments, the first SRS resource group and / or the second SRS resource group are configured through RRC signaling, and / or the first SRS resource group and / or the second SRS resource group are updated or adjusted through MAC CE signaling.

[0508] In some embodiments, the SFN transmission scheme is associated with an SRS resource set and an SRS resource indication field.

[0509] In some embodiments, the first uplink information includes at least one of the following:

[0510] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0511] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0512] It should be understood that the terminal device 600 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the terminal device 600 are respectively for realizing the corresponding processes of the terminal device in the method 300 shown in Figure 8. For the sake of brevity, they will not be repeated here.

[0513] FIG12 shows a schematic block diagram of a network device 700 according to an embodiment of the present application. As shown in FIG12 , the network device 700 includes:

[0514] A communication unit 710 is configured to send sounding reference signal (SRS) resource indication information; wherein the number of transmission configuration indication (TCI) states associated with the SRS resource indicated by the SRS resource indication information is used by the terminal device to determine a transmission scheme for first uplink information, where the transmission scheme for the first uplink information is one of the following: a single transmission and reception point (TRP) or single antenna panel transmission scheme, or a single frequency network (SFN) transmission scheme;

[0515] The communication unit 710 is further configured to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0516] In some embodiments, the number of TCI states associated with the SRS resource indicated by the SRS resource indication information is used by the terminal device to determine a transmission scheme for the first uplink information, including:

[0517] In a case where the SRS resource indicated by the SRS resource indication information is associated with a TCI state, the transmission scheme of the first uplink information is a single TRP or single antenna panel transmission scheme; and / or,

[0518] In a case where the SRS resource indicated by the SRS resource indication information is associated with two TCI states, the transmission scheme of the first uplink information is an SFN transmission scheme.

[0519] In some embodiments, the SRS resource indicated by the SRS resource indication information belongs to a first SRS resource set or a second SRS resource set; wherein each SRS resource in the first SRS resource set is associated with two TCI states, and each SRS resource in the second SRS resource set is associated with one TCI state.

[0520] In some embodiments, the first SRS resource set and / or the second SRS resource set are configured via radio resource control RRC signaling, and / or the first SRS resource set and / or the second SRS resource set are updated or adjusted via media access control layer control element MAC CE signaling.

[0521] In some embodiments, the SRS resource indicated by the SRS resource indication information belongs to the first SRS resource group or the second SRS resource group in the third SRS resource set;

[0522] Each SRS resource in the first SRS resource group is associated with two TCI states, and each SRS resource in the second SRS resource group is associated with one TCI state.

[0523] In some embodiments, the first SRS resource group and / or the second SRS resource group are configured through RRC signaling, and / or the first SRS resource group and / or the second SRS resource group are updated or adjusted through MAC CE signaling.

[0524] In some embodiments, the SFN transmission scheme is associated with an SRS resource set and an SRS resource indication field.

[0525] In some embodiments, the first uplink information includes at least one of the following:

[0526] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0527] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0528] It should be understood that the network device 700 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the network device 700 are respectively for implementing the corresponding processes of the network device in the method 300 shown in Figure 8. For the sake of brevity, they will not be repeated here.

[0529] Figure 13 is a schematic structural diagram of a communication device 800 provided in an embodiment of the present application. The communication device 800 shown in Figure 13 includes a processor 810, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0530] In some embodiments, as shown in FIG13 , the communication device 800 may further include a memory 820. The processor 810 may call and execute a computer program from the memory 820 to implement the method in the embodiment of the present application.

[0531] The memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .

[0532] In some embodiments, as shown in FIG13 , the communication device 800 may further include a transceiver 830 , and the processor 810 may control the transceiver 830 to communicate with other devices. Specifically, the transceiver 830 may send information or data to other devices, or receive information or data sent by other devices.

[0533] The transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include an antenna, and the number of antennas may be one or more.

[0534] In some embodiments, the processor 810 may implement the functions of a processing unit in a terminal device, or the processor 810 may implement the functions of a processing unit in a network device, which will not be described in detail here for the sake of brevity.

[0535] In some embodiments, the transceiver 830 may implement the functions of a communication unit in a terminal device, which will not be described in detail here for the sake of brevity.

[0536] In some embodiments, the transceiver 830 may implement the function of a communication unit in a network device, which will not be described in detail here for the sake of brevity.

[0537] In some embodiments, the communication device 800 may specifically be a network device of an embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0538] In some embodiments, the communication device 800 may specifically be a terminal device of an embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0539] Figure 14 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 900 shown in Figure 14 includes a processor 910, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0540] In some embodiments, as shown in FIG14 , the apparatus 900 may further include a memory 920. The processor 910 may call and execute a computer program from the memory 920 to implement the method in the embodiment of the present application.

[0541] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0542] In some embodiments, the apparatus 900 may further include an input interface 930. The processor 910 may control the input interface 930 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips. Optionally, the processor 910 may be located inside or outside the chip.

[0543] In some embodiments, the processor 910 may implement the functions of a processing unit in a terminal device, or the processor 910 may implement the functions of a processing unit in a network device, which will not be described in detail here for the sake of brevity.

[0544] In some embodiments, the input interface 930 may implement the function of a communication unit in a terminal device, or the input interface 930 may implement the function of a communication unit in a network device.

[0545] In some embodiments, the apparatus 900 may further include an output interface 940. The processor 910 may control the output interface 940 to communicate with other devices or chips, specifically, to output information or data to other devices or chips. Optionally, the processor 910 may be located inside or outside the chip.

[0546] In some embodiments, the output interface 940 may implement the function of a communication unit in a terminal device, or the output interface 940 may implement the function of a communication unit in a network device.

[0547] In some embodiments, the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0548] In some embodiments, the apparatus can be applied to the terminal device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the terminal device in the various methods in the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0549] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, such as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0550] FIG15 is a schematic block diagram of a communication system 1000 provided in an embodiment of the present application. As shown in FIG15 , the communication system 1000 includes a terminal device 1010 and a network device 1020 .

[0551] Among them, the terminal device 1010 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1020 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0552] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0553] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0554] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0555] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0556] In some embodiments, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0557] In some embodiments, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0558] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0559] In some embodiments, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0560] In some embodiments, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0561] The embodiment of the present application also provides a computer program.

[0562] In some embodiments, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0563] In some embodiments, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0564] 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.

[0565] 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.

[0566] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0567] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of the solution of this embodiment according to actual needs.

[0568] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0569] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0570] 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 the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device receives first downlink control information DCI; The terminal device determines a transmission scheme for the first uplink information according to at least one signaling in the first DCI; wherein the transmission scheme for the first uplink information is one of the following: a spatial division multiplexing (SDM) transmission scheme, a single frequency network (SFN) transmission scheme, a time division multiplexing (TDM) transmission scheme, a frequency division multiplexing (FDM) transmission scheme, a single transmitting and receiving point (TRP) or a single antenna panel transmission scheme; The terminal device sends the first uplink information according to a transmission scheme of the first uplink information.

2. The method according to claim 1, wherein The at least one signaling includes a first signaling and / or a second signaling; Among them, the first signaling is used to determine one of the following transmission schemes: TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme, and the second signaling is used to determine TRP or antenna panel information.

3. The method according to claim 2, wherein In a case where the bit state of the second signaling is used to indicate that a single TRP or a single antenna panel is used to send the first uplink information, the first signaling occupies 0 bits, or the at least one signaling does not include the first signaling; and / or, When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, the first signaling occupies at least one bit, and the different bit states of the first signaling are used to indicate at least two of the TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, and SFN transmission scheme.

4. The method according to claim 3, wherein In the case where the first signaling occupies one bit, a bit state of the first signaling is used to indicate an SDM transmission scheme, and another bit state of the first signaling is used to indicate an SFN transmission scheme.

5. The method according to claim 3, wherein In the case where the first signaling occupies two bits, different bit states of the first signaling are used to indicate at least three of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

6. The method according to any one of claims 2 to 5, characterized in that The first signaling is associated with antenna port signaling.

7. The method according to claim 6, wherein When the bit state of the second signaling is used to indicate that multiple TRPs or multiple antenna panels are used to send the first uplink information, and the bit state of the first signaling is used to indicate an SDM transmission scheme, the antenna port signaling indicates that the first uplink information is transmitted using demodulation reference signal DMRS ports of different code division multiplexing (CDM) groups; or, When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SFN transmission scheme, the antenna port signaling indicates the use of the same DMRS port to transmit the first uplink information.

8. The method according to any one of claims 2 to 7, characterized in that The second signaling is a sounding reference signal SRS resource set indication field, or the second signaling is an indication field associated with a transmission configuration indication TCI indication.

9. The method according to claim 1, wherein The at least one signaling includes a third signaling; wherein the third signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme.

10. The method according to claim 9, wherein The bit state of the third signaling includes at least one of the following: a first bit state, a second bit state, a third bit state, and a fourth bit state; The first bit state is used to indicate a first SDM transmission scheme, the second bit state is used to indicate a second SDM transmission scheme, the third bit state is used to indicate a first SFN transmission scheme, and the fourth bit state is used to indicate a second SFN transmission scheme.

11. The method according to claim 10, wherein Part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first SDM transmission scheme are associated with a first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the first SDM transmission scheme are associated with a second spatial parameter; and / or Part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the second SDM transmission scheme are associated with the first spatial parameter, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the second SDM transmission scheme are associated with the second spatial parameter; and / or, The first SRS resource indication field and part or all of the first precoding in the first SFN transmission scheme are associated with a first spatial parameter, and the second SRS resource indication field and part or all of the second precoding in the first SFN transmission scheme are associated with a second spatial parameter; and / or, The second SRS resource indication field and part or all of the second precoding in the second SFN transmission scheme are associated with the first spatial parameters, and the first SRS resource indication field and part or all of the first precoding in the second SFN transmission scheme are associated with the second spatial parameters.

12. The method according to claim 11, wherein In a case where the bit state of the third signaling is used to indicate the first SDM transmission scheme or the second SDM transmission scheme, the first number of transmission layers is different from the second number of transmission layers; and / or, In a case where the bit state of the third signaling is used to indicate the first SFN transmission scheme or the second SFN transmission scheme, the first number of transmission layers is the same as the second number of transmission layers.

13. The method according to any one of claims 9 to 12, characterized in that The third signaling occupies at least 3 bits.

14. The method according to any one of claims 9 to 13, characterized in that The third signaling is an SRS resource set indication field, or the third signaling is an indication field associated with a TCI indication.

15. The method according to any one of claims 1 to 14, characterized in that The DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2.

16. The method according to any one of claims 9 to 13, characterized in that The third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink allocation information.

17. The method according to claim 16, wherein The DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

18. The method according to claim 1, wherein The at least one signaling includes a fourth signaling; Among them, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme, SFN transmission scheme.

19. The method according to claim 18, wherein Before the terminal device receives the first DCI, the method further includes: The terminal device receives first configuration information; The first configuration information is used to configure one of the following: TDM transmission scheme, SDM transmission scheme, SFN transmission scheme; or, the first configuration information is used to configure the TDM transmission scheme; or, the first configuration information is used to configure the SDM transmission scheme and the SFN transmission scheme.

20. The method according to claim 19, wherein In the case where the first configuration information is used to configure the TDM transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme.

21. The method according to claim 20, wherein Some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

22. The method of claim 19, wherein: In the case where the first configuration information is used to configure the SDM transmission scheme and / or the SFN transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, or an SFN transmission scheme.

23. The method according to claim 22, wherein Some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, some bit states in the fourth signaling are used to indicate an SDM transmission scheme, and some bit states in the fourth signaling are used to indicate an SFN transmission scheme.

24. The method according to any one of claims 19 to 23, wherein The first configuration information is carried by one of the following: Radio resource control RRC signaling, media access control layer control element MAC CE signaling.

25. The method of claim 1, wherein The at least one signaling includes a fifth signaling; Among them, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SFN transmission scheme.

26. The method of claim 25, wherein: Before the terminal device receives the first DCI, the method further includes: The terminal device receives second configuration information; The second configuration information is used to configure at least one of the following transmission schemes: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme; The content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information.

27. The method according to claim 26, wherein If the second configuration information is configured as an SDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SDM transmission scheme; If the second configuration information is configured as an SFN transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme; If the second configuration information is configured as a TDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme.

28. The method of claim 27, wherein: If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SDM transmission scheme.

29. The method of claim 27, wherein: If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SFN transmission scheme.

30. The method of claim 27, wherein: If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate a TDM transmission scheme.

31. The method according to any one of claims 25 to 30, wherein If the fifth signaling is used to determine a single TRP or single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers are determined based on the first maximum number of transmission layers.

32. The method according to any one of claims 25 to 30, wherein If the fifth signaling is used to determine the SDM transmission scheme or the SFN transmission scheme, the first precoding and / or the first number of transmission layers, and the second precoding and / or the second number of transmission layers are determined based on the second maximum number of transmission layers and the third maximum number of transmission layers.

33. The method according to any one of claims 1 to 32, wherein Before the terminal device receives the first DCI, the method further includes: The terminal device sends first information; The first information is used to determine the at least one signaling in the first DCI, and the first information includes at least one of the following: channel state information CSI, path loss information, power margin information, SRS reference signal, channel state information reference signal CSI-RS reference signal.

34. The method according to any one of claims 1 to 32, wherein Before the terminal device receives the first DCI, the method further includes: The terminal device sends second information associated with the first space parameter and second information associated with the second space parameter; The second information associated with the first spatial parameter and the second information associated with the second spatial parameter are used to determine the at least one signaling in the first DCI, and the second information includes at least one of the following: CSI, path loss information, power headroom information, SRS reference signal, CSI-RS reference signal.

35. The method according to any one of claims 1 to 34, wherein The first uplink information includes at least one of the following: Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

36. A wireless communication method, characterized in that: include: The network device sends first downlink control information DCI; wherein at least one signaling in the first DCI is used by the terminal device to determine a transmission scheme for first uplink information, and the transmission scheme for the first uplink information is one of the following: a spatial division multiplexing (SDM) transmission scheme, a single frequency network (SFN) transmission scheme, a time division multiplexing (TDM) transmission scheme, a frequency division multiplexing (FDM) transmission scheme, a single transmission and reception point (TRP), or a single antenna panel transmission scheme; The network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

37. The method of claim 36, wherein: The at least one signaling includes a first signaling and / or a second signaling; wherein the first signaling is used to determine one of the following transmission schemes: TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme, and the second signaling is used to determine TRP or antenna panel information.

38. The method of claim 37, wherein: In a case where the bit state of the second signaling is used to indicate that a single TRP or a single antenna panel is used to send the first uplink information, the first signaling occupies 0 bits, or the at least one signaling does not include the first signaling; and / or, When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, the first signaling occupies at least one bit, and the different bit states of the first signaling are used to indicate at least two of the TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, and SFN transmission scheme.

39. The method of claim 38, wherein In the case where the first signaling occupies one bit, a bit state of the first signaling is used to indicate an SDM transmission scheme, and another bit state of the first signaling is used to indicate an SFN transmission scheme.

40. The method of claim 38, wherein In the case where the first signaling occupies two bits, different bit states of the first signaling are used to indicate at least three of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

41. The method according to any one of claims 37 to 40, wherein The first signaling is associated with antenna port signaling.

42. The method of claim 41, wherein When the bit state of the second signaling is used to indicate that multiple TRPs or multiple antenna panels are used to send the first uplink information, and the bit state of the first signaling is used to indicate an SDM transmission scheme, the antenna port signaling indicates that the first uplink information is transmitted using demodulation reference signal DMRS ports of different code division multiplexing (CDM) groups; or, When the bit state of the second signaling is used to indicate the use of multiple TRPs or multiple antenna panels to send the first uplink information, and the bit state of the first signaling is used to indicate the SFN transmission scheme, the antenna port signaling indicates the use of the same DMRS port to transmit the first uplink information.

43. The method according to any one of claims 37 to 42, wherein The second signaling is a sounding reference signal SRS resource set indication field, or the second signaling is an indication field associated with a transmission configuration indication TCI indication.

44. The method of claim 36, wherein The at least one signaling includes a third signaling; wherein the third signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme, FDM transmission scheme, SDM transmission scheme, SFN transmission scheme.

45. The method of claim 44, wherein: The bit state of the third signaling includes at least one of the following: a first bit state, a second bit state, a third bit state, and a fourth bit state; The first bit state is used to indicate a first SDM transmission scheme, the second bit state is used to indicate a second SDM transmission scheme, the third bit state is used to indicate a first SFN transmission scheme, and the fourth bit state is used to indicate a second SFN transmission scheme.

46. ​​The method of claim 45, wherein Part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the first SDM transmission scheme are associated with a first spatial parameter, and part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the first SDM transmission scheme are associated with a second spatial parameter; and / or Part or all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the second SDM transmission scheme are associated with the first spatial parameter, and part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the second SDM transmission scheme are associated with the second spatial parameter; and / or, The first SRS resource indication field and part or all of the first precoding in the first SFN transmission scheme are associated with a first spatial parameter, and the second SRS resource indication field and part or all of the second precoding in the first SFN transmission scheme are associated with a second spatial parameter; and / or, The second SRS resource indication field and part or all of the second precoding in the second SFN transmission scheme are associated with the first spatial parameters, and the first SRS resource indication field and part or all of the first precoding in the second SFN transmission scheme are associated with the second spatial parameters.

47. The method of claim 46, wherein In a case where the bit state of the third signaling is used to indicate the first SDM transmission scheme or the second SDM transmission scheme, the first number of transmission layers is different from the second number of transmission layers; and / or, In a case where the bit state of the third signaling is used to indicate the first SFN transmission scheme or the second SFN transmission scheme, the first number of transmission layers is the same as the second number of transmission layers.

48. The method according to any one of claims 44 to 47, wherein The third signaling occupies at least 3 bits.

49. The method according to any one of claims 44 to 48, wherein The third signaling is an SRS resource set indication field, or the third signaling is an indication field associated with a TCI indication.

50. The method according to any one of claims 36 to 49, wherein The DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2.

51. The method according to any one of claims 44 to 48, wherein The third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink allocation information.

52. The method of claim 51, wherein The DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

53. The method of claim 36, wherein: The at least one signaling includes a fourth signaling; Among them, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fourth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme, SFN transmission scheme.

54. The method of claim 53, wherein: Before the network device sends the first DCI, the method further includes: The network device sends first configuration information; The first configuration information is used to configure one of the following: TDM transmission scheme, SDM transmission scheme, SFN transmission scheme; or, the first configuration information is used to configure the TDM transmission scheme; or, the first configuration information is used to configure the SDM transmission scheme and the SFN transmission scheme.

55. The method of claim 54, wherein In the case where the first configuration information is used to configure the TDM transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme.

56. The method of claim 55, wherein: Some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

57. The method of claim 54, wherein: In the case where the first configuration information is used to configure the SDM transmission scheme and / or the SFN transmission scheme, the fourth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, or an SFN transmission scheme.

58. The method of claim 57, wherein: Some bit states in the fourth signaling are used to indicate a single TRP or single antenna panel transmission scheme, some bit states in the fourth signaling are used to indicate an SDM transmission scheme, and some bit states in the fourth signaling are used to indicate an SFN transmission scheme.

59. The method according to any one of claims 54 to 58, wherein The first configuration information is carried by one of the following: Radio resource control RRC signaling, media access control layer control element MAC CE signaling.

60. The method of claim 36, wherein: The at least one signaling includes a fifth signaling; Among them, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, TDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SDM transmission scheme; or, the fifth signaling is at least used to determine one of the following transmission schemes: single TRP or single antenna panel transmission scheme, SFN transmission scheme.

61. The method of claim 60, wherein: Before the network device sends the first DCI, the method further includes: The network device sends second configuration information; The second configuration information is used to configure at least one of the following transmission schemes: a TDM transmission scheme, an SDM transmission scheme, and an SFN transmission scheme; The content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information.

62. The method of claim 61, wherein If the second configuration information is configured as an SDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SDM transmission scheme; If the second configuration information is configured as an SFN transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme; If the second configuration information is configured as a TDM transmission scheme, the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or a TDM transmission scheme.

63. The method of claim 62, wherein: If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, an SDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SDM transmission scheme.

64. The method of claim 62, wherein: If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, or an SFN transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SFN transmission scheme.

65. The method of claim 62, wherein: If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, a TDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate a TDM transmission scheme.

66. The method according to any one of claims 60 to 65, wherein If the fifth signaling is used to determine a single TRP or single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers are determined based on the first maximum number of transmission layers.

67. The method according to any one of claims 60 to 65, wherein If the fifth signaling is used to determine the SDM transmission scheme or the SFN transmission scheme, the first precoding and / or the first number of transmission layers, and the second precoding and / or the second number of transmission layers are determined based on the second maximum number of transmission layers and the third maximum number of transmission layers.

68. The method according to any one of claims 36 to 67, wherein Before the network device sends the first DCI, the method further includes: The network device receives first information; The first information is used to determine the at least one signaling in the first DCI, and the first information includes at least one of the following: channel state information CSI, path loss information, power margin information, SRS reference signal, channel state information reference signal CSI-RS reference signal.

69. The method according to any one of claims 36 to 67, wherein Before the network device sends the first DCI, the method further includes: The network device receives second information associated with the first space parameter and second information associated with the second space parameter; The second information associated with the first spatial parameter and the second information associated with the second spatial parameter are used to determine the at least one signaling in the first DCI, and the second information includes at least one of the following: CSI, path loss information, power headroom information, SRS reference signal, CSI-RS reference signal.

70. The method according to any one of claims 36 to 69, wherein The first uplink information includes at least one of the following: Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

71. A wireless communication method, characterized in that: include: The terminal device receives the sounding reference signal SRS resource indication information; The terminal device determines a transmission scheme for the first uplink information according to the number of transmission configuration indication TCI states associated with the SRS resource indicated by the SRS resource indication information; wherein the transmission scheme for the first uplink information is one of the following: a single transmission and reception point TRP or a single antenna panel transmission scheme, a single frequency network SFN transmission scheme; The terminal device sends the first uplink information according to a transmission scheme of the first uplink information.

72. The method of claim 71, wherein The terminal device determines, according to the number of TCI states associated with the SRS resource indicated by the SRS resource indication information, a transmission scheme for the first uplink information, including: In a case where the SRS resource indicated by the SRS resource indication information is associated with a TCI state, the terminal device determines that the transmission scheme of the first uplink information is a single TRP or a single antenna panel transmission scheme; and / or, In a case where the SRS resource indicated by the SRS resource indication information is associated with two TCI states, the terminal device determines that the transmission scheme of the first uplink information is the SFN transmission scheme.

73. The method according to claim 71 or 72, wherein The SRS resource indicated by the SRS resource indication information belongs to the first SRS resource set or the second SRS resource set; Each SRS resource in the first SRS resource set is associated with two TCI states, and each SRS resource in the second SRS resource set is associated with one TCI state.

74. The method of claim 73, wherein The first SRS resource set and / or the second SRS resource set are configured through radio resource control RRC signaling, and / or the first SRS resource set and / or the second SRS resource set are updated or adjusted through media access control layer control element MAC CE signaling.

75. The method of claim 71 or 72, wherein: The SRS resource indicated by the SRS resource indication information belongs to the first SRS resource group or the second SRS resource group in the third SRS resource set; Each SRS resource in the first SRS resource group is associated with two TCI states, and each SRS resource in the second SRS resource group is associated with one TCI state.

76. The method of claim 75, wherein The first SRS resource group and / or the second SRS resource group are configured through RRC signaling, and / or the first SRS resource group and / or the second SRS resource group are updated or adjusted through MAC CE signaling.

77. The method according to any one of claims 71 to 76, wherein The SFN transmission scheme is associated with an SRS resource set and an SRS resource indication field.

78. The method according to any one of claims 71 to 77, wherein The first uplink information includes at least one of the following: Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

79. A wireless communication method, characterized in that: include: The network device sends a sounding reference signal SRS resource indication information; wherein the number of transmission configuration indication TCI states associated with the SRS resource indicated by the SRS resource indication information is used by the terminal device to determine a transmission scheme for the first uplink information, and the transmission scheme for the first uplink information is one of the following: a single transmission and reception point TRP or a single antenna panel transmission scheme, a single frequency network SFN transmission scheme; The network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

80. The method of claim 79, wherein The number of TCI states associated with the SRS resource indicated by the SRS resource indication information is used by the terminal device to determine a transmission scheme for the first uplink information, including: In a case where the SRS resource indicated by the SRS resource indication information is associated with a TCI state, the transmission scheme of the first uplink information is a single TRP or single antenna panel transmission scheme; and / or, In a case where the SRS resource indicated by the SRS resource indication information is associated with two TCI states, the transmission scheme of the first uplink information is an SFN transmission scheme.

81. The method of claim 79 or 80, wherein: The SRS resource indicated by the SRS resource indication information belongs to the first SRS resource set or the second SRS resource set; Each SRS resource in the first SRS resource set is associated with two TCI states, and each SRS resource in the second SRS resource set is associated with one TCI state.

82. The method of claim 81, wherein The first SRS resource set and / or the second SRS resource set are configured through radio resource control RRC signaling, and / or the first SRS resource set and / or the second SRS resource set are updated or adjusted through media access control layer control element MAC CE signaling.

83. The method of claim 79 or 80, wherein: The SRS resource indicated by the SRS resource indication information belongs to the first SRS resource group or the second SRS resource group in the third SRS resource set; Each SRS resource in the first SRS resource group is associated with two TCI states, and each SRS resource in the second SRS resource group is associated with one TCI state.

84. The method of claim 83, wherein The first SRS resource group and / or the second SRS resource group are configured through RRC signaling, and / or the first SRS resource group and / or the second SRS resource group are updated or adjusted through MAC CE signaling.

85. The method according to any one of claims 79 to 84, wherein The SFN transmission scheme is associated with an SRS resource set and an SRS resource indication field.

86. The method according to any one of claims 79 to 85, wherein The first uplink information includes at least one of the following: Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

87. A terminal device, characterized in that: include: A communication unit, configured to receive first downlink control information DCI; a processing unit, configured to determine a transmission scheme for first uplink information according to at least one signaling in the first DCI; wherein the transmission scheme for the first uplink information is one of the following: a spatial division multiplexing (SDM) transmission scheme, a single frequency network (SFN) transmission scheme, a time division multiplexing (TDM) transmission scheme, a frequency division multiplexing (FDM) transmission scheme, a single transmission and reception point (TRP), or a single antenna panel transmission scheme; The communication unit is further configured to send the first uplink information according to a transmission scheme of the first uplink information.

88. A network device, characterized in that include: A communication unit, configured to send first downlink control information (DCI); wherein at least one signaling in the first DCI is used by the terminal device to determine a transmission scheme for first uplink information, where the transmission scheme for the first uplink information is one of the following: a spatial division multiplexing (SDM) transmission scheme, a single frequency network (SFN) transmission scheme, a time division multiplexing (TDM) transmission scheme, a frequency division multiplexing (FDM) transmission scheme, a single transmit and receive point (TRP), or a single antenna panel transmission scheme; The communication unit is further used to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

89. A terminal device, characterized in that: include: A communication unit, configured to receive sounding reference signal (SRS) resource indication information; a processing unit, configured to determine a transmission scheme for first uplink information according to the number of transmission configuration indication TCI states associated with the SRS resource indicated by the SRS resource indication information; wherein the transmission scheme for the first uplink information is one of the following: a single transmission and reception point TRP or a single antenna panel transmission scheme, a single frequency network SFN transmission scheme; The communication unit is further configured to send the first uplink information according to a transmission scheme of the first uplink information.

90. A network device, characterized in that include: A communication unit, configured to send sounding reference signal SRS resource indication information; wherein the number of transmission configuration indication TCI states associated with the SRS resource indicated by the SRS resource indication information is used by the terminal device to determine a transmission scheme for first uplink information, where the transmission scheme for the first uplink information is one of the following: a single transmission and reception point TRP or a single antenna panel transmission scheme, a single frequency network SFN transmission scheme; The communication unit is further used to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

91. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the terminal device executes the method according to any one of claims 1 to 35.

92. A network device, characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the network device executes the method according to any one of claims 36 to 70.

93. A terminal device, characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the terminal device executes the method as described in any one of claims 71 to 78.

94. A network device, characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the network device executes the method as described in any one of claims 79 to 86.

95. A chip, characterized in that include: A processor for calling and running a computer program from a memory so that a device equipped with the chip performs a method as described in any one of claims 1 to 35, or a device equipped with the chip performs a method as described in any one of claims 36 to 70, or a device equipped with the chip performs a method as described in any one of claims 71 to 78, or a device equipped with the chip performs a method as described in any one of claims 79 to 86.

96. A computer-readable storage medium, characterized in that Used to store a computer program, when the computer program is executed, the method according to any one of claims 1 to 35 is implemented, or the method according to any one of claims 36 to 70 is implemented, or the method according to any one of claims 71 to 78 is implemented, or the method according to any one of claims 79 to 86 is implemented.

97. A computer program product, characterized in that Comprising computer program instructions, when the computer program instructions are executed, the method according to any one of claims 1 to 35 is implemented, or the method according to any one of claims 36 to 70 is implemented, or the method according to any one of claims 71 to 78 is implemented, or the method according to any one of claims 79 to 86 is implemented.

98. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 35 is implemented, or the method according to any one of claims 36 to 70 is implemented, or the method according to any one of claims 71 to 78 is implemented, or the method according to any one of claims 79 to 86 is implemented.

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