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

[0001] This application is a divisional application of the PCT international patent application PCT / CN2022 / 125516, with an application date of October 14, 2022, which enters the Chinese national phase (application number 202280096742.1, invention name "Wireless communication method, terminal equipment and network equipment").

[0002] 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 in this application. Technical Field

[0003] The embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method, terminal equipment, and network equipment. Background Art

[0004] In some scenarios, multiple transmission schemes of multiple antenna panels or multiple transmission reception points (TRP) are introduced. However, how to determine the transmission scheme of uplink information is a problem that needs to be solved. Summary of the invention

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

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

[0007] The terminal device receives a 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, 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;

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

[0031] In the twelfth aspect, a network device is provided, comprising a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program 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 according to 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 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 throughput of the system.

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

[0039] Figure 1 It is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0040] Figure 2 This is a schematic diagram of multiple panels / TRPs performing uplink transmission simultaneously provided by the present application.

[0041] Figure 3 It is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0042] Figure 4 It is a schematic diagram of an SDM transmission solution provided in an embodiment of the present application.

[0043] Figure 5 It is a schematic diagram of an FDM transmission scheme provided in an embodiment of the present application.

[0044] Figure 6 It is a schematic diagram of an SFN transmission solution provided in an embodiment of the present application.

[0045] Figure 7 It is a schematic diagram of a TDM transmission solution provided in an embodiment of the present application.

[0046] Figure 8 It is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.

[0047] Fig. 9 It is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0048] Fig.10 It is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0049] Fig.11 It is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0050] Fig.12 It is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0051] Fig.13 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0052] Fig.14 It is a schematic block diagram of a device provided according to an embodiment of the present application.

[0053] Fig.15 It 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 the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work 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 on unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Internet of Things (IoT), etc. things, IoT), Wireless Fidelity (WiFi), fifth-generation communication (5th-Generation, 5G) system, sixth-generation communication (6th-Generation, 6G) system or other communication systems, etc.

[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 (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type 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, a standalone (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 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 licensed spectrum, where the licensed 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 410 MHz to 7.125 GHz), or to the FR2 frequency band (corresponding to the frequency band range of 24.25 GHz to 52.6 GHz), or to new frequency bands such as high-frequency frequency bands corresponding to the frequency band range of 52.6 GHz to 71 GHz or the frequency band range of 71 GHz to 114.25 GHz.

[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 (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 function, 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 the embodiments 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 (for example, on airplanes, balloons and satellites, etc.).

[0063] In the embodiment of the present application, the terminal device can 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 but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as 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 powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices 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 types of 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 (Base Transceiver Station, BTS) in GSM or CDMA, or a base station (NodeB, NB) in WCDMA, or an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or a base station (gNB) or a transmission reception point (TRP) in 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 limitation, in an embodiment of the present application, the network device may have a mobile characteristic, 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), and 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, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 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 geographical area and may communicate with terminal devices located in the coverage area.

[0069] Figure 1 One network device and two terminal devices are shown exemplarily. 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 also 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 the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0072] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0073] It should be understood that the present invention relates to a first communication device and a second communication device, and the first communication device may be a terminal device, such as a mobile phone, a machine facility, a customer premise equipment (Customer Premise Equipment, CPE), industrial equipment, a vehicle, etc.; the second communication device may be a peer communication device of the first communication device, such as a network device, a mobile phone, an industrial equipment, a vehicle, etc. In the embodiment of the present application, the first communication device may be a terminal device, and the second communication device may be a network device (i.e., uplink communication or downlink communication); or, the first communication device may be a first terminal, and the second communication device may be a second terminal (i.e., sideline communication).

[0074] The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than 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 the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which 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 relationship 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 two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

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

[0078] In an embodiment of the present application, the “protocol” may refer to a standard protocol in the communication 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 arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope 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 from multiple transmission points to users are relatively independent. The repeated transmission of multiple TRPs in the spatial, time, and frequency domains can improve the reliability of data transmission and reduce transmission latency. For an ideal backhaul scenario, a single downlink control information (DCI) is used to schedule the physical downlink shared channel (PDSCH) transmission of multiple TRPs, 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 of different transmission schemes are as follows:

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

[0085] b. DCI indicates 2 TCI states, and the number of repetitions is configured through the repetition number field in the RRC signaling, so the transmission scheme is TDM scheme B;

[0086] c. Dynamic switching: The base station can dynamically switch to a non-repetitive transmission scheme by indicating one TCI state through DCI; or, if DCI indicates two TCI states and 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 for PDSCH: repetitionNumber, or the base station configures PDSCH: repetitionScheme is 'FDM transmission scheme A (fdmSchemeA)' or 'FDM transmission scheme B (fdmSchemeB)' or 'TDM transmission scheme A (tdmSchemeA)', the UE does not expect to be configured with a PDSCH aggregation factor (pdsch-AggregationFactor).

[0089] It can be understood from the above limitations d and e 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] Since the release (Release 17, Rel-17) only supports the Physical Uplink Shared Channel (PUSCH) to send multiple PUSCHs to two TRPs in TDM mode, the TDM mode includes PUSCH repetition type A (PUSCH repetition type A) and PUSCH repetition type B (PUSCH repetition type B). The configuration method is: configure any 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] In order 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 the terminal is configured with multiple panels and supports simultaneous transmission of uplink information on multiple panels, multiple uplink information can be sent on multiple panels at the same time, such as Figure 2 As described above, the uplink spectrum efficiency is improved. The uplink transmission of multiple panels / TRPs can be scheduled by a single DCI or by 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 (Rel-18), and PUSCH repetition type A and PUSCH repetition type B were introduced in Rel-17. In release 16 (Rel-16), the flexible switching between the above schemes cannot be supported in the switching of PDSCH transmission schemes in multi-TRP scenarios. In Rel-17, only the dynamic switching between single TRP transmission and multi-TRP transmission is defined, and dynamic switching between multi-TRP transmission schemes is 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 rate +11.0%, high resource occupancy rate +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 that of 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 relative 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 the present application is described in detail below through specific embodiments.

[0104] Figure 3 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, such as Figure 3 As shown, 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 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;

[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, the terminal device can determine the transmission scheme of the first uplink information according to 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, SFN, etc., the throughput of the system can be improved.

[0111] In some embodiments, the signaling in the at least one signaling may be an information field or 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 (Physical Uplink Control Channel, PUCCH), a physical uplink shared channel (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 respectively associated with different spatial parameters, for example, part of the transmission layers of the first uplink information are associated with the first spatial parameter, and another part of the transmission layers of the first uplink information are associated with the second spatial parameter. Figure 4 As shown, 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, Figure 4 As shown, in SDM transmission scheme B, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, 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: repeated transmission of the first uplink information (which may be different RVs or the same RV) is associated with different spatial parameters, for example, one repeated transmission of the first uplink information is associated with a first spatial parameter, and another repeated transmission of the first uplink information is associated with a second spatial parameter. Specifically, Figure 5 As shown, in FDM transmission scheme A, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, 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, recorded as the first PUSCH; the PUSCH sent by panel2 of the terminal device is associated with the second TCI state, recorded as the second PUSCH. The first PUSCH and the second PUSCH correspond to 2 PUSCH transmission opportunities respectively. The 2 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, 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. Figure 5 As shown, 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 (such as different information bits) are sent to different TRPs through different panels of the terminal device. For example, the information bit of the PUSCH sent by panel1 of the terminal device is associated with the first TCI state, recorded as the first PUSCH; the information bit of the PUSCH sent by panel2 of the terminal device is associated with the second TCI state, recorded as the second PUSCH. The first PUSCH and the second PUSCH correspond to the same PUSCH transmission opportunity respectively. The first PUSCH and the second PUSCH are respectively associated with non-overlapping frequency domain resources.

[0120] In some embodiments, in the SFN transmission scheme, repeated transmission of the first uplink information 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, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, Figure 6As shown, repeated transmission of a PUSCH is sent to different TRPs through different panels of the terminal device. For example, the PUSCH sent through panel1 of the terminal device is associated with the first TCI state and is recorded as the first PUSCH; the PUSCH sent through panel2 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, and part of the repetitions of the first uplink information is associated with the first spatial parameter, and the other part of the repetitions is associated with the second spatial parameter. Specifically, Figure 7 As shown, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, a part of the multiple repeated transmissions of a PUSCH is associated with the first TCI state, and the other part of the transmission is associated with the second TCI state.

[0123] TDM transmission scheme (repetition type B): multiple repetitions of the first uplink information are sent in multiple transmission opportunities, part of the repetitions is associated with the first spatial parameter, and the other part of the repetitions is associated with the second spatial parameter. Specifically, Figure 7 As shown, taking the first uplink information as PUSCH and the spatial parameter as TCI state as an example, a part of the multiple repeated transmissions of a PUSCH is associated with the first TCI state, and the other part of the transmission is 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, etc., 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 or an uplink TCI state (UL TCI state), or a joint TCI state (joint TCI state).

[0132] In some embodiments, the reference signal set information may be synchronization signal block (SynchronizationSignal Block, SSB) resource set information or channel state information reference signal (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, 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 the 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 different bit states of the first signaling are respectively 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 the SDM transmission scheme, and another bit state of the first signaling is used to indicate the 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 for reservation.

[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 for reservation.

[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 ports 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] The 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 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 state 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 at least used 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 SDM transmission scheme A mentioned above, and the second SDM transmission scheme may be the SDM transmission scheme B mentioned above; or, the first SDM transmission scheme may be the SDM transmission scheme B mentioned above, and the second SDM transmission scheme may be the SDM transmission scheme A mentioned above.

[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, part or all of the first SRS resource indication field and the first precoding in the first SFN transmission scheme are associated with the first spatial parameter, and part or all of the second SRS resource indication field and 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 space 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 space 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 extended from the original 2 bits to 3 bits. The bit states of the SRS resource set indication field correspond to the following contents:

[0179] A bit state of the SRS resource set indication field: used to indicate 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. It can also be understood that part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers of the first uplink information are associated with the first spatial parameter.

[0180] A bit state of the SRS resource set indication field: used to indicate 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. It can also be understood that part or all of the first SRS resource indication field, the first precoding, and the first number of transmission layers of the first uplink information are associated with the second spatial parameter.

[0181] A bit state of the SRS resource set indication field: used to indicate a TDM transmission scheme. Specifically, for example, in the 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: used to indicate a TDM transmission scheme. Specifically, for example, in the TDM transmission scheme, 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, 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 parameter.

[0183] A bit state of the SRS resource set indication field: used to indicate the SDM transmission scheme. Specifically, 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.

[0184] A bit state of the SRS resource set indication field: used to indicate the SDM transmission scheme. Specifically, for example, in the SDM transmission scheme, 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, 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 parameter.

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

[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, and the embodiments of the present application are not limited to this.

[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 in the SDM transmission scheme is different from the second DMRS port, or the first DMRS port in the SDM transmission scheme belongs 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; the first DMRS port in the SFN transmission scheme is the same as the second DMRS port.

[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, and the third signaling 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 transmission scheme of PUCCH 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 a third signaling, and the downlink DCI is a DCI format 1_1 / 1_2 without DL assignment (DCI format 1_1 / 1_2without 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 by high-level signaling, wherein the high-level signaling may be radio resource control (RRC) signaling or media access control layer control element (MAC CE) signaling. That is, the first configuration information is carried by one of the following: RRC signaling, MAC CE signaling.

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

[0208] Or it can be as follows:

[0209]

[0210]

[0211] 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 a single antenna panel transmission scheme, a TDM transmission scheme. Specifically, for example, some bit states in the fourth signaling are used to indicate a single TRP or a single antenna panel transmission scheme, and some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

[0212] 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 a single antenna panel transmission scheme, a TDM transmission scheme; some bit states in the fourth signaling are used to indicate a single TRP or a single antenna panel transmission scheme; some bit states in the fourth signaling are used to indicate a TDM transmission scheme.

[0213] For example, the fourth signaling occupies 1 bit.

[0214] 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, 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.

[0215] That is, if the high-level 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, and 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; 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:

[0216] 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.

[0217] 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.

[0218] 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-level signaling.

[0219] 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-level signaling.

[0220] In some embodiments, the bit status of the fourth signaling may be as shown in Table 6 below.

[0221] Table 6

[0222]

[0223]

[0224] 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.

[0225] 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 a 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 a 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 a single antenna panel transmission scheme, an SFN transmission scheme.

[0226] In some embodiments, it can be understood that the fifth signaling is used to dynamically switch the transmission scheme.

[0227] The fifth signaling is the SRS resource set indication field, or the fifth signaling is a re-interpretation of the content corresponding to the bit state in the SRS resource set indication field.

[0228] In some embodiments, before the terminal device receives the first DCI, the terminal device receives second configuration information;

[0229] 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.

[0230] 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 a single antenna panel transmission scheme, 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 a single antenna panel transmission scheme, 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 a single antenna panel transmission scheme, a TDM transmission scheme.

[0231] In some embodiments, the second configuration information is carried in a high-layer signaling. Optionally, the high-layer signaling may be an RRC signaling or a MAC CE.

[0232] In some embodiments, the second configuration information may be carried by multiple high-level signaling. For example, high-level signaling 1 (numberOfRepetitions) is used to configure the TDM transmission scheme, and / or high-level signaling 2 (sdmScheme-r18) is used to configure the SDM transmission scheme, and / or high-level signaling 3 (sfnScheme-r18) is used to configure the SFN transmission scheme. Taking RRC signaling as an example, structure 1 may be as follows:

[0233]

[0234] 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 as the SDM transmission scheme, high-level signaling 1 and high-level signaling 3 are not configured; or high-level signaling 1 is configured as n1, and high-level signaling 3 is not configured.

[0235] In some embodiments, the second configuration information may be carried by multiple high-level signaling. For example, high-level signaling 4 (numberOfRepetitions) is used to configure the TDM transmission scheme, and / or high-level 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:

[0236]

[0237] Among them, the high-level 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 the high-level signaling 4 is configured to a state other than n1, the high-level signaling 5 is not configured; if the high-level signaling 5 is configured to the SDM transmission scheme or the SFN transmission scheme, the high-level signaling 4 is configured to n1.

[0238] In some embodiments, the second configuration information may be carried by a high-level signaling. For example, high-level signaling 6 (transmissionScheme-r18) is used to configure the TDM transmission scheme (tdmScheme), or the SDM transmission scheme (sdmScheme) or the SFN transmission scheme (sfnScheme). Taking RRC signaling as an example, structure 3 may be as follows:

[0239]

[0240]

[0241] 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. 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 an SDM transmission scheme. For example, the fifth signaling is 2 bits, and the indicated content is exemplified as follows, Example 1:

[0242] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0243] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0244] One of the bit states, such as '10', is used to indicate 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.

[0245] One of the bit states, for example '11', is a reserved bit state.

[0246] Example 2:

[0247] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0248] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0249] One of the bit states, such as '10', is used to indicate 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; the second SRS resource indication field, the second precoding, 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 of each panel is 23dBm. The sum of the maximum transmit powers of the two panels is 26dBm.

[0250] One of the bit states, such as '11', is used to indicate 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; the second SRS resource indication field, the second precoding, 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 transmit power of the two panels is 23dBm.

[0251] Example 2a:

[0252] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0253] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0254] One of the bit states, such as '10', is used to indicate 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.

[0255] One of the bit states, such as '11', is used to indicate 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.

[0256] 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 a single TRP or single antenna panel transmission scheme; some bit states in the fifth signaling are used to indicate an SFN transmission scheme. For example, the fifth signaling is 2 bits, and the indicated content is as follows, Example 3:

[0257] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0258] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0259] One of the bit states, such as '10', is used to indicate 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.

[0260] One of the bit states, for example '11', is a reserved bit state.

[0261] Example 4:

[0262] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0263] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0264] One of the bit states, such as '10', is used to indicate 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; the second SRS resource indication field, the second precoding, 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 of each panel is 23dBm. The sum of the maximum transmit powers of the two panels is 26dBm.

[0265] One of the bit states, such as '11', is used to indicate 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; the second SRS resource indication field, the second precoding, 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 transmit power of the two panels is 23dBm.

[0266] Example 4a:

[0267] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0268] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0269] One of the bit states, such as '10', is used to indicate 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.

[0270] One of the bit states, such as '11', is used to indicate 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.

[0271] 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, 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, and the indicated content is as follows, Example 5:

[0272] 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, and the first number of transmission layers are associated with the first spatial parameter.

[0273] One of the bit states, such as '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, and the first number of transmission layers are associated with the second spatial parameter.

[0274] One of the bit states, for example, '10', is used to indicate a TDM transmission scheme. In which, 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.

[0275] One of the bit states, such as '11', is used to indicate a 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 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.

[0276] 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.

[0277] Table 7

[0278]

[0279]

[0280] Table 8

[0281]

[0282] Table 9

[0283]

[0284] Table 10

[0285]

[0286]

[0287] Table 11

[0288]

[0289] Table 12

[0290]

[0291]

[0292] Table 13

[0293]

[0294] 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, and the embodiments of the present application are not limited to this.

[0295] 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.

[0296] 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, and the second precoding and / or the second number of transmission layers are determined according to 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 according to 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 according to 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.

[0297] In some embodiments, before the terminal device receives the first DCI, the terminal device sends first information;

[0298] 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 (Channel State Information, CSI), path loss information, power margin information, SRS reference signal, channel state information reference signal (Channel State Information ReferenceSignal, CSI-RS) reference signal.

[0299] In some embodiments, the first information may be information characterizing transmission quality or information used to measure transmission quality.

[0300] 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.

[0301] For example, if the information included 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.

[0302] 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.

[0303] In some embodiments, before the terminal device receives the first DCI, the terminal device sends the second information associated with the first space parameter and the second information associated with the second space parameter;

[0304] 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 margin information, SRS reference signal, CSI-RS reference signal.

[0305] In some embodiments, the first information may be information characterizing transmission quality or information used to measure transmission quality.

[0306] Specifically, after receiving the second information, if the second information meets the condition, the network device sends the first DCI to the terminal device to dynamically indicate the transmission scheme of the first uplink information.

[0307] 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.

[0308] 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 are 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 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.

[0309] That is, in the 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.

[0310] Therefore, in an embodiment of the present application, the terminal device can determine the transmission scheme of the first uplink information according to 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, SFN, etc., the throughput of the system can be improved.

[0311] Figure 8 is a schematic flow chart of a wireless communication method 300 according to an embodiment of the present application, such as Figure 8 As shown, the wireless communication method 300 may include at least part of the following contents:

[0312] S310, the network device sends SRS resource indication information;

[0313] S320, the terminal device receives the SRS resource indication information;

[0314] 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 a SFN transmission scheme;

[0315] S340, the terminal device sends the first uplink information according to the transmission scheme of the first uplink information;

[0316] S350, the network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0317] In an embodiment of the present application, the terminal device can determine the transmission scheme of the first uplink information according to the number of TCI states associated with the SRS resource indicated by the SRS resource indication information, and the transmission scheme of the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, and a SFN transmission scheme. Thus, the terminal device can flexibly determine the uplink transmission scheme and improve the throughput of the system.

[0318] In the embodiment of the present application, the SFN transmission scheme is associated with one SRS resource set and one SRS resource indication field. That is, only one SRS resource set and one SRS resource indication field can be configured for the SFN transmission scheme of the first uplink information to ensure that the number of SRS ports associated with the SFN transmission of the first uplink information is consistent.

[0319] In some embodiments, the first uplink information includes but is not limited to at least one of the following: PUCCH, PUSCH.

[0320] In some embodiments, the SRS resource indication information may be an SRS resource indication field.

[0321] 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.

[0322] In some embodiments, 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, including:

[0323] 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,

[0324] 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.

[0325] In some embodiments, a Transmit Precoding Matrix Indicator (TPMI) of the SFN transmission scheme of the first uplink information needs to be independently indicated.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] In some embodiments, the first uplink information is a PUSCH transmission based on a codebook, and the transmission scheme of the PUSCH is a SFN transmission scheme. The SRS resource set associated with the PUSCH belongs to the first SRS resource set.

[0331] In some embodiments, the first uplink information is transmitted based on a non-codebook PUSCH, and the transmission scheme of the PUSCH is an SFN transmission scheme. The SRS resource set associated with the PUSCH belongs to the first SRS resource set. The SRS resources corresponding to the PUSCH are all associated with 2 TCI states.

[0332] In some embodiments, the signaling format of the network device configuring the SRS resource set (SRS-ResourceSet) through RRC signaling may be as follows:

[0333]

[0334] 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 a 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.

[0335] In some embodiments, the MACCE signaling used to update or adjust the first SRS resource set and / or the second SRS resource set may include one or more of the following information:

[0336] Serving cell ID;

[0337] BWP ID (the BWP ID where the SRS resource set is located);

[0338] SRS resource set ID (SRS resource set ID);

[0339] Associated TCI state.

[0340] The associated TCI status includes one of the following:

[0341] 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));

[0342] 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));

[0343] 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)).

[0344] 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.

[0345] That is, a part of the SRS resources in the third SRS resource set is configured to be associated with 2 TCI states, and a part of the SRS resources in the third SRS resource set is configured to be associated with 1 TCI state.

[0346] It should be noted that the third SRS resource set may also include other SRS resource groups, which is not limited in the embodiment of the present application.

[0347] 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.

[0348] In some embodiments, the first uplink information is a PUSCH transmission based on a codebook, and the transmission scheme of the PUSCH is a SFN transmission scheme. The PUSCH is associated with an SRS resource indicated by the SRS resource indication information, and the SRS resource is associated with 2 TCIstates.

[0349] In some embodiments, the first uplink information is a non-codebook based PUSCH transmission, the PUSCH transmission scheme is a SFN transmission scheme, the PUSCH is associated with multiple SRS resources indicated by the SRS resource indication information, and the multiple SRS resources are associated with 2 TCI states.

[0350] In some embodiments, the signaling format of the network device configuring the SRS resource set (SRS-ResourceSet) through RRC signaling may be as follows:

[0351]

[0352] Among them, in the above 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 (1st and2ndIndicatedTCIsate). 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 (1st2ndIndicatedTCIsate).

[0353] Therefore, in the embodiment of the present application, the terminal device can determine the transmission scheme of the first uplink information according to the number of TCI states associated with the SRS resource indicated by the SRS resource indication information, and the transmission scheme of the first uplink information is one of the following: a single TRP or single antenna panel transmission scheme, and a SFN transmission scheme. Thus, the terminal device can flexibly determine the uplink transmission scheme and improve the throughput of the system.

[0354] Combination of the above Figures 3 to 8 , describes in detail the method embodiment of the present application, and the following is combined with Figures 9 to 13 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0355] Fig. 9 FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Fig. 9 As shown, the terminal device 400 includes:

[0356] The communication unit 410 is configured to receive first downlink control information DCI;

[0357] The processing unit 420 is configured to determine 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 space 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;

[0358] The communication unit 410 is further configured to send the first uplink information according to a transmission scheme of the first uplink information.

[0359] 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.

[0360] 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; and / or,

[0361] 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 respectively used to indicate at least two of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

[0362] In some embodiments, when the first signaling occupies one bit, a bit state of the first signaling is used to indicate the SDM transmission scheme, and another bit state of the first signaling is used to indicate the SFN transmission scheme.

[0363] 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.

[0364] In some embodiments, the first signaling is associated with antenna port signaling.

[0365] 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,

[0366] 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.

[0367] 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.

[0368] In some embodiments, 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: 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.

[0369] 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;

[0370] 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.

[0371] 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; and / or,

[0372] 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,

[0373] 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,

[0374] 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 space 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 space parameters.

[0375] 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,

[0376] 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.

[0377] In some embodiments, the third signaling occupies at least 3 bits.

[0378] 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.

[0379] In some embodiments, the DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2.

[0380] In some embodiments, the third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink allocation information.

[0381] In some embodiments, the DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

[0382] In some embodiments, the at least one signaling includes fourth signaling;

[0383] 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.

[0384] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to receive first configuration information;

[0385] 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.

[0386] 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.

[0387] 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.

[0388] 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, and an SFN transmission scheme.

[0389] 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.

[0390] In some embodiments, the first configuration information is carried by one of the following:

[0391] Radio resource control RRC signaling, media access control layer control unit MAC CE signaling.

[0392] In some embodiments, the at least one signaling includes fifth signaling;

[0393] 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.

[0394] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to receive second configuration information;

[0395] 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;

[0396] The content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information.

[0397] 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;

[0398] If the second configuration information is configured as a 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 a SFN transmission scheme;

[0399] 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.

[0400] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or a single antenna panel transmission scheme, an SDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or a single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SDM transmission scheme.

[0401] 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.

[0402] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or a single antenna panel transmission scheme, a TDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or a single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate a TDM transmission scheme.

[0403] In some embodiments, if the fifth signaling is used to determine a single TRP or a single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers is determined based on the first maximum number of transmission layers.

[0404] 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.

[0405] In some embodiments, before the terminal device receives the first DCI, the communication unit 410 is further configured to send first information;

[0406] 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.

[0407] 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;

[0408] 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 margin information, SRS reference signal, CSI-RS reference signal.

[0409] In some embodiments, the first uplink information includes at least one of the following:

[0410] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0411] 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.

[0412] 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 method embodiment of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively to implement Figure 3 For the sake of brevity, the corresponding process of the terminal device in the method 200 is not repeated here.

[0413] Fig.10 FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. Fig.10 As shown, the network device 500 includes:

[0414] The communication unit 510 is used 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 the first uplink information, and the transmission scheme for the first uplink information is one of the following: a space 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 receiving point TRP or a single antenna panel transmission scheme;

[0415] The communication unit 510 is also used to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0416] 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.

[0417] 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; and / or,

[0418] 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 respectively used to indicate at least two of the TDM transmission scheme, the FDM transmission scheme, the SDM transmission scheme, and the SFN transmission scheme.

[0419] In some embodiments, when the first signaling occupies one bit, a bit state of the first signaling is used to indicate the SDM transmission scheme, and another bit state of the first signaling is used to indicate the SFN transmission scheme.

[0420] 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.

[0421] In some embodiments, the first signaling is associated with antenna port signaling.

[0422] 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,

[0423] 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.

[0424] 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.

[0425] In some embodiments, 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: 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.

[0426] 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;

[0427] 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.

[0428] 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; and / or,

[0429] 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,

[0430] 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,

[0431] 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 space 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 space parameters.

[0432] 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,

[0433] 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.

[0434] In some embodiments, the third signaling occupies at least 3 bits.

[0435] 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.

[0436] In some embodiments, the DCI format of the first DCI is DCI format 0_1 ​​or DCI format 0_2.

[0437] In some embodiments, the third signaling occupies available bits in the first DCI, and the first DCI does not carry downlink allocation information.

[0438] In some embodiments, the DCI format of the first DCI is DCI format 1_1 or DCI format 1_2.

[0439] In some embodiments, the at least one signaling includes fourth signaling;

[0440] 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.

[0441] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to send first configuration information;

[0442] 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.

[0443] 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.

[0444] 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.

[0445] 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, and an SFN transmission scheme.

[0446] 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.

[0447] In some embodiments, the first configuration information is carried by one of the following:

[0448] Radio resource control RRC signaling, media access control layer control unit MAC CE signaling.

[0449] In some embodiments, the at least one signaling includes fifth signaling;

[0450] 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.

[0451] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to send second configuration information;

[0452] 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;

[0453] The content corresponding to the bit state of the fifth signaling is associated with the transmission scheme configured by the second configuration information.

[0454] 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;

[0455] If the second configuration information is configured as a 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 a SFN transmission scheme;

[0456] 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.

[0457] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or a single antenna panel transmission scheme, an SDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or a single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate an SDM transmission scheme.

[0458] 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.

[0459] In some embodiments, if the fifth signaling is used to determine one of the following transmission schemes: a single TRP or a single antenna panel transmission scheme, a TDM transmission scheme, some bit states in the fifth signaling are used to indicate a single TRP or a single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate a TDM transmission scheme.

[0460] In some embodiments, if the fifth signaling is used to determine a single TRP or a single antenna panel transmission scheme, the first precoding and / or the first number of transmission layers is determined based on the first maximum number of transmission layers.

[0461] 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.

[0462] In some embodiments, before the network device sends the first DCI, the communication unit 510 is further configured to receive first information;

[0463] 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.

[0464] 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;

[0465] 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 margin information, SRS reference signal, CSI-RS reference signal.

[0466] In some embodiments, the first uplink information includes at least one of the following:

[0467] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0468] 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.

[0469] 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 method embodiment of the present application, and the above and other operations and / or functions of each unit in the network device 500 are respectively to implement Figure 3 For the sake of brevity, the corresponding processes of the network device in the method 200 are not repeated here.

[0470] Fig.11 FIG. 6 shows a schematic block diagram of a terminal device 600 according to an embodiment of the present application. Fig.11 As shown, the terminal device 600 includes:

[0471] The communication unit 610 is configured to receive sounding reference signal SRS resource indication information;

[0472] The processing unit 620 is configured to determine 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;

[0473] The communication unit 610 is further configured to send the first uplink information according to a transmission scheme of the first uplink information.

[0474] In some embodiments, the processing unit 620 is specifically configured to:

[0475] 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,

[0476] 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.

[0477] 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.

[0478] 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 unit MAC CE signaling.

[0479] 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;

[0480] 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.

[0481] 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.

[0482] In some embodiments, the SFN transmission scheme is associated with an SRS resource set and an SRS resource indication field.

[0483] In some embodiments, the first uplink information includes at least one of the following:

[0484] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0485] 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.

[0486] 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 method embodiment of the present application, and the above and other operations and / or functions of each unit in the terminal device 600 are respectively to implement Figure 8 For the sake of brevity, the corresponding process of the terminal device in the method 300 is not repeated here.

[0487] Fig.12 FIG. 7 shows a schematic block diagram of a network device 700 according to an embodiment of the present application. Fig.12 As shown, the network device 700 includes:

[0488] The communication unit 710 is used to send 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;

[0489] The communication unit 710 is also used to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

[0490] 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:

[0491] 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 a single antenna panel transmission scheme; and / or,

[0492] 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 a SFN transmission scheme.

[0493] 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.

[0494] 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 unit MAC CE signaling.

[0495] 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;

[0496] 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.

[0497] 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.

[0498] In some embodiments, the SFN transmission scheme is associated with an SRS resource set and an SRS resource indication field.

[0499] In some embodiments, the first uplink information includes at least one of the following:

[0500] Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

[0501] 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.

[0502] 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 method embodiment of the present application, and the above and other operations and / or functions of each unit in the network device 700 are respectively to implement Figure 8 For the sake of brevity, the corresponding processes of the network device in the method 300 are not repeated here.

[0503] Fig.13 It is a schematic structural diagram of a communication device 800 provided in an embodiment of the present application. Fig.13 The communication device 800 shown includes a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0504] In some embodiments, Fig.13 As shown, the communication device 800 may further include a memory 820. The processor 810 may call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.

[0505] The memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .

[0506] In some embodiments, Fig.13 As shown, 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, may send information or data to other devices, or receive information or data sent by other devices.

[0507] The transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include an antenna, and the number of the antennas may be one or more.

[0508] In some embodiments, the processor 810 may implement the function of a processing unit in a terminal device, or the processor 810 may implement the function of a processing unit in a network device, which will not be described in detail here for the sake of brevity.

[0509] In some embodiments, the transceiver 830 may implement the function of a communication unit in a terminal device, which will not be described in detail here for the sake of brevity.

[0510] 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.

[0511] 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, which will not be described in detail here for the sake of brevity.

[0512] 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, which will not be described in detail here for the sake of brevity.

[0513] Fig.14 It is a schematic structural diagram of the device of an embodiment of the present application. Fig.14 The device 900 shown includes a processor 910, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0514] In some embodiments, Fig.14 As shown, the apparatus 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.

[0515] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0516] In some embodiments, the device 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.

[0517] In some embodiments, the processor 910 may implement the function of a processing unit in a terminal device, or the processor 910 may implement the function of a processing unit in a network device, which will not be described in detail here for the sake of brevity.

[0518] 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.

[0519] 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, and specifically, may output information or data to other devices or chips. Optionally, the processor 910 may be located inside or outside the chip.

[0520] 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.

[0521] 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.

[0522] 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.

[0523] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, for example, a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0524] Fig.15 1 is a schematic block diagram of a communication system 1000 provided in an embodiment of the present application. Fig.15 As shown, the communication system 1000 includes a terminal device 1010 and a network device 1020 .

[0525] 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.

[0526] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. 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.

[0527] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), 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.

[0528] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0529] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0530] 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.

[0531] 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.

[0532] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0533] 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.

[0534] 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.

[0535] The embodiment of the present application also provides a computer program.

[0536] 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.

[0537] 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.

[0538] Those of ordinary skill 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 to be beyond the scope of this application.

[0539] Those skilled in the art can 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.

[0540] In the several embodiments provided in the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0541] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0542] 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.

[0543] 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 such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform 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.

[0544] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope 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, characterized in that 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.

3. The method according to claim 2, characterized in that Before the terminal device receives the first DCI, the method further includes: The terminal device receives second configuration information, where the second configuration information is carried by radio resource control RRC signaling; 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.

4. The method according to claim 3, characterized in that The fifth signaling occupies two bits. If the second configuration information is configured as an SDM transmission scheme, different bit states of the fifth signaling except the reserved bit state are used to indicate: a single TRP or a single antenna panel transmission scheme, an SDM transmission scheme; if the second configuration information is configured as an SFN transmission scheme, different bit states of the fifth signaling except the reserved bit state are used to indicate: a single TRP or a single antenna panel transmission scheme, an SFN transmission scheme. Wherein, when the bit state of the fifth signaling is used to indicate a single TRP or a single antenna panel transmission scheme, all of the first sounding reference signal SRS resource indication field, the first precoding, and the first number of transmission layers in the indicated transmission scheme are associated with the first spatial parameter or the second spatial parameter; When the bit state of the fifth signaling is used to indicate an SDM transmission scheme or an SFN transmission scheme, all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the indicated transmission scheme are associated with the first spatial parameter, and all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the indicated transmission scheme are associated with the second spatial parameter.

5. The method according to claim 4, characterized in that The first spatial parameter and / or the second spatial parameter includes reference signal set information, The reference signal set information includes: SRS resource set information.

6. 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 space 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 network device receives the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

7. The method according to claim 6, characterized in that 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.

8. The method according to claim 7, characterized in that Before the network device sends the first DCI, the method further includes: The network device sends second configuration information, where the second configuration information is carried by radio resource control RRC signaling; 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.

9. The method according to claim 8, characterized in that 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; If the second configuration information is configured as a 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 a 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.

10. The method according to claim 9, characterized in that 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 the single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate the SDM transmission scheme; If the fifth signaling is used to determine one of the following transmission schemes: a single TRP or single antenna panel transmission scheme, and a SFN transmission scheme, some bit states in the fifth signaling are used to indicate the single TRP or single antenna panel transmission scheme, and some bit states in the fifth signaling are used to indicate the SFN transmission scheme; 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.

11. 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 transmitting and receiving 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.

12. The terminal device according to claim 1, characterized in that: 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.

13. The terminal device according to claim 12, characterized in that: Before the terminal device receives the first DCI, the communication unit is further used to: receiving second configuration information, where the second configuration information is carried by radio resource control RRC signaling; 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.

14. The terminal device according to claim 13, characterized in that: 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; If the second configuration information is configured as a 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 a 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.

15. The terminal device according to any one of claims 12 to 14, characterized in that: If the fifth signaling is used to determine a single TRP or single antenna panel transmission scheme, a first precoding and / or a first number of transmission layers is determined based on a first maximum number of transmission layers; 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.

16. 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 a 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 space 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 communication unit is also used to receive the first uplink information sent by the terminal device according to the transmission scheme of the first uplink information.

17. The network device according to claim 16, characterized in that: 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.

18. The network device according to claim 17, characterized in that: Before the network device sends the first DCI, the communication unit is further configured to: Sending second configuration information, where the second configuration information is carried by radio resource control RRC signaling; 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.

19. The network device according to claim 18, characterized in that: The fifth signaling occupies two bits. If the second configuration information is configured as an SDM transmission scheme, different bit states of the fifth signaling except the reserved bit state are used to indicate: a single TRP or a single antenna panel transmission scheme, an SDM transmission scheme; if the second configuration information is configured as an SFN transmission scheme, different bit states of the fifth signaling except the reserved bit state are used to indicate: a single TRP or a single antenna panel transmission scheme, an SFN transmission scheme. Wherein, when the bit state of the fifth signaling is used to indicate a single TRP or a single antenna panel transmission scheme, all of the first sounding reference signal SRS resource indication field, the first precoding, and the first number of transmission layers in the indicated transmission scheme are associated with the first spatial parameter or the second spatial parameter; When the bit state of the fifth signaling is used to indicate an SDM transmission scheme or an SFN transmission scheme, all of the first SRS resource indication field, the first precoding, and the first number of transmission layers in the indicated transmission scheme are associated with the first spatial parameter, and all of the second SRS resource indication field, the second precoding, and the second number of transmission layers in the indicated transmission scheme are associated with the second spatial parameter.

20. The network device according to claim 19, characterized in that The first spatial parameter and / or the second spatial parameter includes reference signal set information, The reference signal set information includes: SRS resource set information.

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