Uplink communication method and device based on multi-panel simultaneous transmission

Abstract

The embodiment of the invention discloses an uplink communication method and device based on multi-panel simultaneous transmission, first indication information sent by network equipment is received, the first indication information is used for indicating a demodulation reference signal (DMRS) port used for PUSCH transmission, the PUSCH transmission is space division multiplexing multi-antenna panel simultaneous transmission based on single DCI, and the first indication information is used for indicating a demodulation reference signal (DMRS) port used for PUSCH transmission. Second indication information sent by the network equipment is received, the second indication information is used for indicating transmission layer number information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, the plurality of PUSCH transmission occasions are transmitted in directions corresponding to a plurality of TCI states and / or TRP, DMRS ports corresponding to the PUSCH transmission occasions are determined, the DMRS ports used for transmission can be flexibly configured, and the transmission efficiency is improved. Transmission interference among multiple antenna panels is effectively reduced, transmission reliability and robustness are effectively improved, and system communication efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an uplink communication method and apparatus based on simultaneous transmission across multiple panels. Background Technology

[0002] To improve coverage at the cell edge and provide a more balanced quality of service within the service area, Coordinated Multiple Point Transmission (CoMP) remains an important technique in NR (New Radio) systems. From the perspective of ensuring link robustness, cooperation between multiple transmission and reception points (TRPs) or panels can be utilized to transmit / receive from multiple angles and multiple beams, thereby reducing the adverse effects of obstruction.

[0003] Currently, Rel 18 considers simultaneous transmission enhancements for the Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH) based on multiple transmission and reception points (M-TRP) of multi-panel terminal equipment. Summary of the Invention

[0004] The first aspect of this application proposes an uplink communication method based on simultaneous transmission across multiple panels, the method being executed by a terminal device, the method comprising: The network device receives a first indication message, which is used to indicate the total demodulation reference signal DMRS port for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on Single Downlink Control Information (DCI). The network device receives a second indication message, which is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit / receive point TRP. Determine the DMRS port corresponding to each PUSCH transmission timing.

[0005] A second aspect of this application provides an uplink communication method based on simultaneous transmission across multiple panels, the method being executed by a network device, the method comprising: Send a first indication message to the terminal device. The first indication message is used to indicate the total demodulation reference signal DMRS port for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on Single Downlink Control Information (DCI). Send a second indication message to the terminal device. The second indication message is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit / receive point TRP.

[0006] A third aspect of this application provides an uplink communication device based on simultaneous transmission across multiple panels, the device comprising: The transceiver unit is used to receive first indication information sent by the network device. The first indication information is used to indicate the total demodulation reference signal DMRS port for the Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on the spatial division multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on a single downlink control information (DCI). The transceiver unit is further configured to receive second indication information sent by the network device. The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit / receive point TRP. The processing unit is used to determine the DMRS port corresponding to each PUSCH transmission timing.

[0007] A fourth aspect of this application provides an uplink communication device based on simultaneous transmission across multiple panels, the device comprising: The transceiver unit is used to send first indication information to the terminal device. The first indication information is used to indicate the total demodulation reference signal DMRS port for the Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on the simultaneous transmission of STxMP by a spatially divided multiplexing (SDM) multi-antenna panel using a single downlink control information (DCI). The transceiver unit is further configured to send second indication information to the terminal device. The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit / receive point TRP.

[0008] A fifth aspect of this application provides a communication device comprising a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform the uplink communication method based on simultaneous transmission of multiple panels as described in the first aspect embodiment above.

[0009] A sixth aspect of this application provides a communication device comprising a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform the uplink communication method based on simultaneous transmission of multiple panels as described in the second aspect of the application.

[0010] A seventh aspect of this application provides a communication device including a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to execute the code instructions to enable the device to perform the uplink communication method based on simultaneous transmission of multiple panels as described in the first aspect embodiment above.

[0011] An eighth aspect of this application provides a communication device including a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to execute the code instructions to cause the device to perform the uplink communication method based on simultaneous transmission of multiple panels as described in the second aspect of the application.

[0012] A ninth aspect of this application provides a computer-readable storage medium for storing instructions that, when executed, enable the uplink communication method based on simultaneous transmission of multiple panels as described in the first aspect embodiment.

[0013] The tenth aspect of this application provides a computer-readable storage medium for storing instructions that, when executed, enable the uplink communication method based on simultaneous transmission of multiple panels as described in the second aspect embodiment above.

[0014] The eleventh aspect of this application provides a computer program that, when run on a computer, causes the computer to perform the uplink communication method based on simultaneous transmission of multiple panels as described in the first aspect embodiment.

[0015] The twelfth aspect of this application provides a computer program that, when run on a computer, causes the computer to perform the uplink communication method based on simultaneous transmission of multiple panels as described in the second aspect embodiment.

[0016] This application provides an uplink communication method and apparatus based on simultaneous transmission across multiple panels. It receives first indication information from a network device, indicating the total demodulation reference signal (DMRS) port used for Physical Uplink Shared Channel (PUSCH) transmission. This PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP (Single Downlink Control Information, DCI). It also receives second indication information from the network device, indicating the transmission layer number (RANK) information corresponding to multiple PUSCH transmission opportunities. These multiple PUSCH transmission opportunities are transmitted in directions corresponding to multiple Transmission Configuration Indication (TCI) states and / or Transmitter Receiver Point (TRP) states. Determining the DMRS port corresponding to each PUSCH transmission opportunity allows for flexible configuration of the DMRS port used for transmission, effectively reducing transmission interference between multiple antenna panels, improving transmission reliability and robustness, and increasing system communication efficiency.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0019] Figure 1a This application provides a schematic diagram of the architecture of a communication system. Figure 1b A logical diagram illustrating a single DCI multi-panel transmission implementation provided in this application embodiment; Figure 2 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. Figure 3a This is a schematic diagram of a DMRS pattern with a configuration type of type 1 and occupying 1 symbol in the time domain; Figure 3b This is a schematic diagram of a DMRS pattern with a configuration type of type 1 and occupying 2 symbols in the time domain; Figure 3c This is a schematic diagram of a DMRS pattern with a configuration type of type 2 and occupying 1 symbol in the time domain; Figure 3dThis is a schematic diagram of a DMRS pattern with a configuration type of type 2 and occupying 2 symbols in the time domain; Figure 4 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. Figure 5 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. Figure 6 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of an uplink communication device based on simultaneous transmission across multiple panels, provided in an embodiment of this application. Figure 8 This is a schematic diagram of the structure of an uplink communication device based on simultaneous transmission across multiple panels, provided in an embodiment of this application. Figure 9 This is a schematic diagram of another uplink communication device based on simultaneous transmission across multiple panels provided in this application embodiment; Figure 10 This is a schematic diagram of the structure of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0021] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a” and “the” as used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0022] It should be understood that although the terms first, second, third, etc., may be used to describe various information in the embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words "if" and "suppose" as used herein can be interpreted as "when," "when," or "in response to a determination."

[0023] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0024] To better understand the uplink communication method based on simultaneous transmission of multiple panels disclosed in the embodiments of this application, the communication system applicable to the embodiments of this application is described below.

[0025] Please see Figure 1a , Figure 1a This application provides a schematic diagram of the architecture of a communication system according to an embodiment. The communication system may include, but is not limited to, a network device and a terminal device. Figure 1a The number and form of devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of this application. In actual applications, it may include two or more network devices and two or more terminal devices. Figure 1a The communication system shown is exemplified by a network device 101 and a terminal device 102. It should be noted that the technical solutions of this application embodiment can be applied to various communication systems. For example, Long Term Evolution (LTE) systems, fifth-generation mobile communication systems, 5G New Radio systems, or other future new mobile communication systems.

[0026] The network device 101 in this embodiment is a network-side entity used for transmitting or receiving signals. For example, the network device 101 can be an evolved NodeB (eNB), a Transmission Reception Point (TRP), a Next Generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a Wireless Fidelity (WiFi) system. This application does not limit the specific technology or device form used in the network device. The network device provided in this embodiment can be composed of a Central Unit (CU) and a Distributed Unit (DU). The CU can also be called a Control Unit. Using a CU-DU structure allows the protocol layer of a network device, such as a base station, to be separated. Some protocol layer functions are centrally controlled by the CU, while the remaining partial or complete protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0027] In this application embodiment, the terminal device 102 is a user-side entity used to receive or transmit signals, such as a mobile phone. The terminal device can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device can be a car with communication capabilities, a smart car, a mobile phone, an Internet of Things (IoT) terminal, a wearable device, a tablet computer, a computer with wireless transceiver capabilities, 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 surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and so on. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0028] To improve coverage at the cell edge and provide a more balanced quality of service within the service area, Coordinated Multiple Point Transmission (CoMP) remains an important technique in NR (New Radio) systems. From the perspective of ensuring link robustness, cooperation between multiple Transmission / Reception Points (TRPs) or panels can be utilized to transmit / receive from multiple angles and multiple beams, thereby reducing the adverse effects of obstruction.

[0029] Based on the mapping relationship between transmitted signal streams and multiple TRPs / panels, multi-point cooperative transmission technology can be divided into coherent and incoherent transmission. In coherent transmission, each data layer is mapped to multiple TRPs / panels via a weighted vector. In incoherent transmission, each data stream is mapped to only a subset of TRPs / panels. Coherent transmission places higher demands on synchronization between transmission points and the transmission capacity of the backhaul link, making it more sensitive to many non-ideal factors in real-world deployment conditions. In contrast, incoherent transmission is less affected by these factors and is therefore a preferred solution for multi-point transmission technology.

[0030] Currently, Rel 18 considers simultaneous transmission enhancements for the Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH) based on multiple transmission and reception points (M-TRP) of multi-panel terminal devices.

[0031] In other words, the main consideration in Multi-TRP scenarios is to utilize multiple panel terminals for simultaneous uplink transmission to improve uplink speed and further enhance transmission reliability. Transmission can be scheduled based on a single DCI carried by a PDCCH channel, or it can be scheduled separately based on different DCIs carried by different PDCCHs. Currently considered synchronous transmission schemes primarily utilize channel transmission without panels, based on Space Division Multiplexing (SDM) or Frequency Division Multiplexing (FDM). For example... Figure 1b As shown, Figure 1bThis is a logical diagram illustrating a multi-panel transmission implementation based on a single downlink control information (DCI) provided in this application.

[0032] A multi-panel terminal implementation typically involves configuring multiple physical panels, each with potentially different capabilities. For example, these panels might have varying numbers of Sounding Reference Signal (SRS) ports, or they might support different maximum data transmission layers; one panel might support a maximum of Layer 2 transmission, while another supports a maximum of Layer 4. The network scheduler determines whether the terminal is suitable for simultaneous uplink transmission across multiple panels. If the terminal is suitable for simultaneous uplink transmission across multiple panels and is scheduled accordingly, the network will directly or indirectly indicate relevant transmission parameters, including the terminal's specific beamforming information, the number of data layers used for transmission, the allocation of Demodulation Reference Signal (DMRS) ports, and precoding indication information. In the embodiments of this application, the main challenge is determining the DMRS port indication under S-DCI scheduling, i.e., how to determine which DMRS ports are used for transmission on different panels' PUSCH. It should be noted that for the data channel (Physical Downlink Shared Channel (PDSCH) / PUSCH) in the NR system, the data layer for data transmission corresponds to the DMRS port used for demodulation.

[0033] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems. The uplink communication method and apparatus based on simultaneous transmission across multiple panels provided in this application will be described in detail below with reference to the accompanying drawings.

[0034] Please see Figure 2 , Figure 2 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. It should be noted that the uplink communication method based on simultaneous transmission across multiple panels in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 2 As shown, the method may include the following steps: Step 201: Receive first indication information sent by the network device, which indicates the total DMRS port used for PUSCH transmission.

[0035] In this embodiment of the application, the PUSCH transmission is based on simultaneous transmission from multiple panels (STxMP) using space division multiplexing (SDM) with a single downlink control information (DCI).

[0036] It should be noted that in Rel 18, the SDM uplink STxMP scheme based on S-DCI includes: different parts of a transmission block (TB) of PUSCH are transmitted to two different TRPs on the same time-frequency resources through their respective corresponding DMRS ports or port combinations allocated on different panels. Different panels / TRPs / transmission occupancy (TO) are associated with different transmission configuration indication (TCI) states, i.e., beams.

[0037] In this context, the TO of PUSCH refers to the transmission of different data layers of a PUSCH transport block to different TRPs via different terminal panels on the same time-frequency resource. The portion of PUSCH data layer transmitted on each panel-TRP transmission link corresponds to a PUSCH transmission timing.

[0038] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, which can be used to indicate the total DMRS ports allocated by the network side for PUSCH transmission.

[0039] In various embodiments of this application, the maximum number of transport layers for the PUSCH is 4.

[0040] Optionally, the first indication information can be DCI.

[0041] Furthermore, this first indication information can be the antenna ports indication field in the DCI.

[0042] It should be noted that the current DMRS design for data channels (PUSCH / PDSCH) in NR systems mainly includes the following aspects: (1) Front-load DMRS: Within each scheduling time unit, the first occurrence of the DMRS should be as close as possible to the start of the scheduling. The use of front-load DMRS helps the receiver to quickly estimate the channel and perform reception detection, which plays an important role in reducing latency and supporting the so-called self-contained structure. Depending on the total number of orthogonal DMRS ports, the front-load DMRS can occupy a maximum of two consecutive orthogonal frequency division multiplexing (OFDM) symbols.

[0043] (2) Additional DMRS: For low mobility scenarios, front-load DMRS can achieve channel estimation performance that meets demodulation requirements with lower overhead. However, the dynamic range of mobility speeds considered by NR systems is large, and high-speed mobility scenarios also need to be considered. In addition to front-load DMRS, more DMRS symbols need to be inserted during the scheduling duration in medium / high-speed scenarios to meet the estimation accuracy of channel time-varying characteristics. To address this issue, NR systems adopt a DMRS structure that combines front-load DMRS with additional DMRS whose time-domain density is configurable. The pattern of each additional DMRS is a repetition of the front-load DMRS.

[0044] Within each scheduling time unit, if additional DMRS exist, the pattern of each additional DMRS group is consistent with that of the front-load DMRS. Therefore, the pattern design of the front-load DMRS is the foundation of the DMRS design. The design ideas of the front-load DMRS are divided into two categories. The first type (type 1) is based on the COMB (comb code) + OCC (Orthogonal Cover Code) structure, and the second type (type 2) is based on the FDM + OCC structure.

[0045] Depending on the number of orthogonal ports used for transmission, front-load DMRS can be configured with a maximum of two OFDM symbols. Considering power utilization efficiency, when using two-symbol front-load DMRS, TD-OCC (Time Domain-OCC, orthogonal overlay code) is used in the time domain in addition to the frequency domain CS or OCC.

[0046] The front-load DMRS diagrams for the two configuration types are as follows: Figures 3a to 3d As shown. Among them, Figure 3a This is a schematic diagram of a DMRS pattern with a configuration type of type 1 and occupying 1 symbol in the time domain. Figure 3b This is a schematic diagram of a DMRS pattern with a configuration type of type 1 and occupying 2 symbols in the time domain. Figure 3c This is a schematic diagram of a DMRS pattern with a configuration type of type 2 and occupying 1 symbol in the time domain. Figure 3d This is a schematic diagram of a DMRS pattern with a configuration type of type2 and occupying 2 symbols in the time domain.

[0047] It is understandable that DMRS ports occupying the same time-frequency domain resources in the diagram need to be distinguished by code division multiplexing, belonging to the same code division multiplexing (CDM) group. As can be seen, Figure 3a In the diagram shown, DMRS ports 0 and 1 belong to the same DMRS CDM group, and DMRS ports 2 and 3 belong to the same DMRS CDM group. Similarly, as... Figure 3b In the diagram shown, DMRS ports 0, 1, 4, and 5 belong to the same DMRS CDM group, and DMRS ports 2, 3, 6, and 7 belong to the same DMRS CDM group. For example... Figure 3c In the diagram shown, DMRS ports 0 and 1 belong to the same DMRS CDM group, DMRS ports 2 and 3 belong to the same DMRS CDM group, and DMRS ports 4 and 5 belong to the same DMRS CDM group. For example... Figure 3d In the diagram shown, DMRS ports 0, 1, 6, and 7 belong to the same DMRS CDM group, DMRS ports 2, 3, 8, and 9 belong to the same DMRS CDM group, and DMRS ports 4, 5, 10, and 11 belong to the same DMRS CDM group.

[0048] In this embodiment of the application, as an example, the DMRS port allocation for different parameter configurations under the uplink OFDM (CP-OFDM) waveform with cyclic prefix is ​​shown in the following tables. Optionally, the first indication information can be a code point in an indication field of the DCI, with different code points indicating different allocated DMRS ports (for example, when the DMRS type is 1, the number of symbols occupied by the pre-DMRS is 1, and the number of data transmission layers is 2, the first indication information is set to 0 to indicate that the total DMRS ports allocated to the PUSCH are DMRS ports numbered 0 and 1, and the DMRS ports numbered 0 and 1 belong to the same CDM group; as another example, when the DMRS type is 1, the number of symbols occupied by the pre-DMRS is 1, and the number of data transmission layers is 3, the first indication information is set to 0 to indicate that the total DMRS ports allocated to the PUSCH are DMRS ports numbered 0, 1, and 2, and the DMRS ports numbered 0 and 1 belong to the same CDM group, while the DMRS port numbered 2 belongs to another CDM group).

[0049] Table 1: DMRS type dmrs-Type=1, maximum symbol length maxLength=1, data transmission layer rank=1

[0050] Table 2: dmrs-Type=1, maxLength=1, rank = 2

[0051] Table 3: dmrs-Type=1, maxLength=1, rank = 3

[0052] Table 4: dmrs-Type=1, maxLength=1, rank = 4

[0053] Table 5: dmrs-Type=1, maxLength=2, rank = 1

[0054] Table 6: dmrs-Type=1, maxLength=2, rank = 2

[0055] Table 7: dmrs-Type=1, maxLength=2, rank = 3

[0056] Table 8: dmrs-Type=1, maxLength=2, rank = 4

[0057] Table 9: dmrs-Type=2, maxLength=1, rank=1

[0058] Table 10: dmrs-Type=2, maxLength=1, rank=2

[0059] Table 11: dmrs-Type=2, maxLength=1, rank =3

[0060] Table 12: dmrs-Type=2, maxLength=1, rank =4

[0061] Table 13: dmrs-Type=2, maxLength=2, rank=1

[0062] Table 14: dmrs-Type=2, maxLength=2, rank=2

[0063] Table 15: dmrs-Type=2, maxLength=2, rank=3

[0064] Table 16: dmrs-Type=2, maxLength=2, rank=4

[0065] It is understood that each element in the above tables exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the table. Therefore, those skilled in the art will understand that the value of each element in the table is an independent embodiment.

[0066] Step 202: Receive second indication information sent by the network device. The second indication information is used to indicate the transmission layer information corresponding to the multiple PUSCH transmission times of the PUSCH.

[0067] The multiple PUSCH transmissions occur in the directions corresponding to multiple TCI states and / or TRPs.

[0068] In this embodiment of the application, the terminal device can receive the second indication information sent by the network device, and determine the transmission layer information corresponding to the multiple PUSCH transmission times of the PUSCH according to the indication of the second indication information.

[0069] Optionally, the second indication information may be an SRS resource set indicator.

[0070] In this embodiment of the application, the timing of the PUSCH transmission corresponds to at least one of the following: Codeword (CW); Panel; Detection Reference Signal (SRS) resource set; SRS Resource Indicator (SRI) indication field; Transmit Precoding Matrix Indicator (TPMI) indication field; Transmitter / Receiver Point (TRP); Used to indicate the TCI status of the beam.

[0071] In M-TRP transmission, two SRS resource sets are supported. Therefore, the DCI contains two SRI fields associated with the two SRS resource sets. Each SRI indication field indicates the SRS resources in the SRS resource set associated with that SRI field for a TRP. The two SRI indication fields correspond to different PUSCH transmission timings. The transmission scheduling of single TRP and multi-TRP can be dynamically indicated through the indication fields of the SRS resource sets.

[0072] In some implementations, the transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field in the two SRI / TPMI indication fields is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field in the two SRI / TPMI indication fields is R2. The second indication information can be used to indicate R1 and R2.

[0073] It can be understood that in codebook-based PUSCH transmission, the timing of the PUSCH transmission corresponds to the SRI indication field, which indicates the associated SRS resource set; in non-codebook-based PUSCH transmission, the timing of the PUSCH transmission corresponds to the TPMI indication field, which indicates the associated SRS resource set.

[0074] In some implementations, the second indication information may individually indicate the transmission layer number information corresponding to the plurality of transmission times, or it may combine to indicate a combination of transmission layer number information corresponding to the plurality of transmission times.

[0075] As an example, the second indication information can be a combination of the PUSCH transmission timing corresponding to the first SRI / TPMI indication field and the transmission layer information of the PUSCH transmission timing corresponding to the second SRI / TPMI indication field, that is, the combination information indicating the R1 and R2, such as indicating the combination information of the transmission layer corresponding to the two transmission timings as {R1, R2}.

[0076] In some implementations, the correspondence between the multiple PUSCH transmission timings and the SRI or TPMI domains is predefined.

[0077] In some implementations, the correspondence between the multiple PUSCH transmission times and the SRI or TPMI domain is indicated by the indication field of the SRS resource set indicator.

[0078] As one possible implementation, the correspondence between the multiple PUSCH transmission timings and the SRI domain or the TPMI domain is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0079] As another possible implementation, the correspondence between the multiple PUSCH transmission timings and the SRI domain or the TPMI domain is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0080] In some implementations, the second indication information is an SRS resource set indication, and the second indication information (SRS resource set indication) includes a first code point used to indicate the combination information of the transport layer number {R1, R2}, wherein the PUSCH transmission timing of the transport layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transport layer number R2 is transmitted in the second direction. The indication field of the SRS resource set indicates that the second code point is used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0081] In various embodiments of this application, the first instruction information and the second instruction information may be the same instruction information or different instruction information.

[0082] Step 203: Determine the DMRS port corresponding to each PUSCH transmission timing.

[0083] In this embodiment, the terminal device is able to determine the DMRS port corresponding to each PUSCH transmission timing.

[0084] In some implementations, the terminal device can determine the DMRS port corresponding to each PUSCH transmission timing based on a fixed rule.

[0085] Optionally, the fixed rule can be to determine the DMRS port corresponding to each PUSCH transmission timing according to the sorting of DMRS port numbers.

[0086] In some implementations, the terminal device can determine whether the DMRS port indicated by the first indication information belongs to the same DMRS CDM group.

[0087] Optionally, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing, and the first DMRS port belongs to the same CDM group, while the second DMRS port belongs to another CDM group.

[0088] Optionally, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0089] Optionally, if the DMRS ports indicated by the first indication information belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0090] In summary, by receiving the first indication information sent by the network device, which indicates the total demodulation reference signal (DMRS) port for the Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on the simultaneous transmission of STxMP by multiple antenna panels using spatial division multiplexing (SDM) with a single downlink control information (DCI), and receiving the second indication information sent by the network device, which indicates the transmission layer number (RANK) information corresponding to the multiple PUSCH transmission opportunities, wherein the multiple PUSCH transmission opportunities are transmitted in the directions corresponding to multiple transmission configuration indication (TCI) states and / or transmit / receive points (TRPs), determining the DMRS port corresponding to each PUSCH transmission opportunity allows for flexible configuration of the DMRS port used for transmission, effectively reducing transmission interference between multiple antenna panels, effectively improving transmission reliability and robustness, and improving system communication efficiency.

[0091] Please see Figure 4 , Figure 4 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. It should be noted that the uplink communication method based on simultaneous transmission across multiple panels in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 4 As shown, the method may include the following steps: Step 401: Receive first indication information sent by the network device, which indicates the total DMRS port used for PUSCH transmission.

[0092] In this embodiment of the application, the PUSCH transmission is based on S-DCI and SDM multi-antenna panel for simultaneous transmission of STxMP.

[0093] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, which can be used to indicate the total DMRS ports allocated by the network side for PUSCH transmission.

[0094] In various embodiments of this application, the maximum number of transport layers for the PUSCH is 4.

[0095] It is understandable that the total number of DMRS ports indicated by the first indication information is equal to the number of transport layers of the PUSCH.

[0096] Optionally, the first indication information can be DCI.

[0097] Step 402: Receive second indication information sent by the network device. The second indication information is used to indicate the combination of transmission layer numbers corresponding to the multiple PUSCH transmission times of the PUSCH.

[0098] The multiple PUSCH transmissions occur in the directions corresponding to multiple TCI states and / or TRPs.

[0099] In this embodiment of the application, the terminal device can receive the second indication information sent by the network device, and determine the transmission layer information corresponding to the multiple PUSCH transmission times of the PUSCH according to the indication of the second indication information.

[0100] In this embodiment of the application, the second indication information can be combined with information indicating the number of transmission layers corresponding to the multiple transmission times.

[0101] Optionally, the second indication information may be an SRS resource set indicator.

[0102] In this embodiment of the application, the timing of the PUSCH transmission corresponds to at least one of the following: Codeword; panel; SRS resource set; SRI indication field; TPMI indication field; transmit / receive point (TRP); TCI status used to indicate beam status.

[0103] In this embodiment, two SRI indication fields and / or two TPMI indication fields are included. The transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field in the two SRI / TPMI indication fields is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field in the two SRI / TPMI indication fields is R2. This second indication information can be used to indicate the combined information of R1 and R2.

[0104] It can be understood that in codebook-based PUSCH transmission, the timing of the PUSCH transmission corresponds to the SRI indication field, which indicates the associated SRS resource set; in non-codebook-based PUSCH transmission, the timing of the PUSCH transmission corresponds to the TPMI indication field, which indicates the associated SRS resource set.

[0105] In some implementations, the correspondence between the multiple PUSCH transmission timings and the SRI or TPMI domains is predefined.

[0106] In some implementations, the correspondence between the multiple PUSCH transmission times and the SRI or TPMI domain is indicated by the indication field of the SRS resource set indicator.

[0107] As one possible implementation, the correspondence between the multiple PUSCH transmission timings and the SRI domain or the TPMI domain is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0108] As another possible implementation, the correspondence between the multiple PUSCH transmission timings and the SRI domain or the TPMI domain is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0109] In some implementations, the second indication information is an SRS resource set indication, and the second indication information (SRS resource set indication) includes a first code point used to indicate the combination information of the transport layer number {R1, R2}, wherein the PUSCH transmission timing of the transport layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transport layer number R2 is transmitted in the second direction. The indication field of the SRS resource set indicates that the second code point is used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0110] It is understandable that the indication field of an SRS resource set indicator may include multiple code points.

[0111] As an example, the indication field of the SRS resource set indicates that the first code point (such as code point "10" or code point "11", etc.) is used to indicate that the PUSCH transmission timing corresponding to the first SRI field or the first TPMI field is transmitted in the first direction, and the transmission layer number of the PUSCH transmission timing is R1; the PUSCH transmission timing corresponding to the second SRI field or the second TPMI field is transmitted in the second direction, and the transmission layer number of the PUSCH transmission timing is R2.

[0112] The indication field of the SRS resource set indicates that the second code point (such as code point "11" or code point "10", etc.) is used to indicate that the PUSCH transmission timing corresponding to the first SRI field or the first TPMI field is transmitted in the second direction, and the transmission layer number of the PUSCH transmission timing is R1; the PUSCH transmission timing corresponding to the second SRI field or the second TPMI field is transmitted in the first direction, and the transmission layer number of the PUSCH transmission timing is R2.

[0113] Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0114] It is understandable that R1+R2 equals the number of transport layers of this PUSCH.

[0115] Step 403: Determine whether each DMRS port indicated by the first indication information belongs to the same DMRS code division multiplexing (CDM) group.

[0116] In this embodiment of the application, the terminal device can determine whether each DMRS port indicated by the first indication information belongs to the same DMRS CDM group.

[0117] Step 404: If the DMRS ports indicated by the first indication information do not belong to the same CDM group, determine the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing, wherein the first DMRS port belongs to the same CDM group and the second DMRS port belongs to another CDM group.

[0118] It can be understood that the number of ports of the first DMRS port is equal to the number of transport layers corresponding to the first PUSCH transmission, and the number of ports of the second DMRS port is equal to the number of transport layers corresponding to the second PUSCH.

[0119] Alternatively, it can be understood that the first PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the second PUSCH transmission timing corresponds to the second SRI field / second TPMI field; or the second PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the first PUSCH transmission timing corresponds to the second SRI field / second TPMI field.

[0120] In this embodiment of the application, when it is determined that the DMRS ports indicated by the first indication information do not belong to the same CDM group, the terminal device can divide the DMRS ports indicated by the first indication information according to the CDM group and allocate the DMRS ports belonging to the same CDM group to a PUSCH transmission opportunity.

[0121] As an example, the PUSCH transmission layer number is 3, the first PUSCH transmission timing has a transmission layer number of 2, and the second PUSCH transmission timing has a transmission layer number of 1. The DMRS ports indicated by the first indication information are 0, 1, and 2, where ports {0, 1} belong to the same CDM group, and port {2} belongs to another CDM group. Therefore, the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 0 and 1, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 2.

[0122] It is understood that the first PUSCH transmission timing can correspond to the first SRI domain / first TPMI domain, or it can correspond to the second SRI domain / second TPMI domain. The first PUSCH transmission timing can be transmitted in the direction corresponding to the first TCI state and / or the first TRP, or it can be transmitted in the direction corresponding to the second TCI state and / or the second TRP.

[0123] Step 405: If the DMRS ports indicated by the first indication information belong to the same CDM group, determine the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0124] It can be understood that the number of ports of the first DMRS port is equal to the number of transport layers corresponding to the first PUSCH transmission, and the number of ports of the second DMRS port is equal to the number of transport layers corresponding to the second PUSCH.

[0125] Alternatively, it can be understood that the first PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the second PUSCH transmission timing corresponds to the second SRI field / second TPMI field; or the second PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the first PUSCH transmission timing corresponds to the second SRI field / second TPMI field.

[0126] In this embodiment of the application, when it is determined that each DMRS port indicated by the first indication information belongs to the same CDM group, the terminal device can allocate the DMRS ports indicated by the first indication information to a PUSCH transmission opportunity according to the first order of their numbers.

[0127] As an example, the PUSCH transmission layer number is 3, the first PUSCH transmission timing has a transmission layer number of 2, and the second PUSCH transmission timing has a transmission layer number of 1. The DMRS ports indicated by the first indication information are 0, 1, and 6, belonging to the same CDM group. The first order can be sorted from smallest to largest, in which case the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 0 and 1, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 6. Alternatively, the first order can be sorted from largest to smallest, in which case the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 1 and 6, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 0.

[0128] It is understood that the first PUSCH transmission timing can correspond to the first SRI domain / first TPMI domain, or it can correspond to the second SRI domain / second TPMI domain. The first PUSCH transmission timing can be transmitted in the direction corresponding to the first TCI state and / or the first TRP, or it can be transmitted in the direction corresponding to the second TCI state and / or the second TRP.

[0129] In summary, by receiving first indication information sent by the network device, which indicates the total DMRS ports used for PUSCH transmission, and receiving second indication information sent by the network device, which indicates the transmission layer combination information corresponding to the multiple PUSCH transmission times, it is determined whether each DMRS port indicated by the first indication information belongs to the same DMRS code division multiplexing (CDM) group. If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission time and the second DMRS port corresponding to the second PUSCH transmission time are determined. The first DMRS port belongs to the same CDM group, and the second DMRS port belongs to... In another CDM group, when the DMRS ports indicated by the first indication information belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission opportunity and the second DMRS port corresponding to the second PUSCH transmission opportunity are determined. The first DMRS port is the DMRS ports whose numbers are arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port. This allows for flexible configuration of the DMRS ports used for transmission and the use of DMRS ports from the same CDM group to transmit a PUSCH transmission opportunity. This more effectively reduces transmission interference between multiple antenna panels, improves transmission reliability and robustness, improves system communication efficiency, and achieves better transmission results.

[0130] Please see Figure 5 , Figure 5 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. It should be noted that the uplink communication method based on simultaneous transmission across multiple panels in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 5 As shown, the method may include the following steps: Step 501: Receive first indication information sent by the network device, which indicates the total DMRS port used for PUSCH transmission.

[0131] Step 502: Receive second indication information sent by the network device. The second indication information is used to indicate the combination of transmission layer numbers corresponding to the multiple PUSCH transmission times of the PUSCH.

[0132] Step 503: Determine whether each DMRS port indicated by the first indication information belongs to the same DMRS code division multiplexing (CDM) group.

[0133] In the embodiments of this application, steps 501 and 503 can be implemented in any of the embodiments of this application. The embodiments of this application do not limit this and will not elaborate further.

[0134] Step 504: If the DMRS ports indicated by the first indication information do not belong to the same CDM group, determine the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0135] It can be understood that the number of ports of the first DMRS port is equal to the number of transport layers corresponding to the first PUSCH transmission, and the number of ports of the second DMRS port is equal to the number of transport layers corresponding to the second PUSCH.

[0136] Alternatively, it can be understood that the first PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the second PUSCH transmission timing corresponds to the second SRI field / second TPMI field; or the second PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the first PUSCH transmission timing corresponds to the second SRI field / second TPMI field.

[0137] In this embodiment of the application, when it is determined that the DMRS ports indicated by the first indication information do not belong to the same CDM group, the terminal device can allocate the DMRS ports indicated by the first indication information to a PUSCH transmission opportunity according to the first order of their numbers.

[0138] As an example, the PUSCH transmission layer number is 3, the first PUSCH transmission timing has a transmission layer number of 2, and the second PUSCH transmission timing has a transmission layer number of 1. The DMRS ports indicated by the first indication information are 0, 1, and 6, belonging to the same CDM group. The first order can be sorted from smallest to largest, in which case the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 0 and 1, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 6. Alternatively, the first order can be sorted from largest to smallest, in which case the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 1 and 6, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 0.

[0139] It is understood that the first PUSCH transmission timing can correspond to the first SRI domain / first TPMI domain, or it can correspond to the second SRI domain / second TPMI domain. The first PUSCH transmission timing can be transmitted in the direction corresponding to the first TCI state and / or the first TRP, or it can be transmitted in the direction corresponding to the second TCI state and / or the second TRP.

[0140] Step 505: If the DMRS ports indicated by the first indication information belong to the same CDM group, determine the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0141] It can be understood that the number of ports of the first DMRS port is equal to the number of transport layers corresponding to the first PUSCH transmission, and the number of ports of the second DMRS port is equal to the number of transport layers corresponding to the second PUSCH.

[0142] Alternatively, it can be understood that the first PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the second PUSCH transmission timing corresponds to the second SRI field / second TPMI field; or the second PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the first PUSCH transmission timing corresponds to the second SRI field / second TPMI field.

[0143] In this embodiment of the application, when it is determined that each DMRS port indicated by the first indication information belongs to the same CDM group, the terminal device can allocate the DMRS ports indicated by the first indication information to a PUSCH transmission opportunity according to the first order of their numbers.

[0144] As an example, the PUSCH transmission layer number is 3, the first PUSCH transmission timing has a transmission layer number of 2, and the second PUSCH transmission timing has a transmission layer number of 1. The DMRS ports indicated by the first indication information are 0, 1, and 6, belonging to the same CDM group. The first order can be sorted from smallest to largest, in which case the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 0 and 1, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 6. Alternatively, the first order can be sorted from largest to smallest, in which case the DMRS ports corresponding to the first PUSCH transmission timing are DMRS ports numbered 1 and 6, and the DMRS port corresponding to the second PUSCH transmission timing is DMRS port numbered 0.

[0145] It is understood that the first PUSCH transmission timing can correspond to the first SRI domain / first TPMI domain, or it can correspond to the second SRI domain / second TPMI domain. The first PUSCH transmission timing can be transmitted in the direction corresponding to the first TCI state and / or the first TRP, or it can be transmitted in the direction corresponding to the second TCI state and / or the second TRP.

[0146] In summary, by receiving first indication information sent by the network device, which indicates the total DMRS ports used for PUSCH transmission, and receiving second indication information sent by the network device, which indicates the transmission layer combination information corresponding to the multiple PUSCH transmission times, it is determined whether each DMRS port indicated by the first indication information belongs to the same DMRS code division multiplexing (CDM) group. If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission time and the second DMRS port corresponding to the second PUSCH transmission time are determined. The first DMRS port is the DMRS port indicated by the first indication information. After the port numbers are arranged in a first order, adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port. When all the DMRS ports indicated by the first indication information belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission time and the second DMRS port corresponding to the second PUSCH transmission time are determined. The first DMRS port is the DMRS port number indicated by the first indication information arranged in a first order and then adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port. This allows for flexible configuration of the DMRS ports used for transmission, effectively reducing transmission interference between multiple antenna panels, effectively improving transmission reliability and robustness, and improving system communication efficiency.

[0147] In this embodiment of the application, as an example, the second indication information may indicate that the transmission layer number of the first PUSCH transmission timing is R1 and the transmission layer number of the second PUSCH transmission timing is R2. The first PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the second PUSCH transmission timing corresponds to the second SRI field / second TPMI field. The first PUSCH transmission timing is transmitted in a first direction (the direction corresponding to the first TCI state and / or the first TRP), and the second PUSCH transmission timing is transmitted in a second direction (the direction corresponding to the second TCI state and / or the second TRP).

[0148] The terminal device determines the DMRS ports corresponding to the first PUSCH transmission timing and the second PUSCH transmission timing, and the terminal device can determine whether each DMRS port indicated by the first indication information belongs to the same CDM group.

[0149] If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the multiple DMRS ports can be divided according to the CDM group. R1 DMRS ports belonging to the same CDM group are assigned to the first PUSCH transmission time, and R2 DMRS ports belonging to another CDM group are assigned to the second PUSCH transmission time.

[0150] If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the DMRS ports indicated by the first indication information can be arranged in the first order of their numbers. The R1 adjacent DMRS ports (for example, the first R1 ports can be arranged from smallest to largest, or the first R1 ports can be arranged from largest to smallest, etc.) are allocated to the first PUSCH transmission opportunity, and the remaining R2 DMRS ports are allocated to the second PUSCH transmission opportunity.

[0151] When the DMRS ports indicated by the first indication information belong to the same CDM group, the DMRS ports indicated by the first indication information can be arranged in the first order of their numbers. The R1 adjacent DMRS ports (for example, the first R1 ports can be arranged from smallest to largest, or the first R1 ports can be arranged from largest to smallest, etc.) are allocated to the first PUSCH transmission opportunity, and the remaining R2 DMRS ports are allocated to the second PUSCH transmission opportunity.

[0152] As another example, the second indication information may indicate that the transmission layer number of the first PUSCH transmission timing is R1, and the transmission layer number of the second PUSCH transmission timing is R2. The first PUSCH transmission timing corresponds to the first SRI field / first TPMI field, and the second PUSCH transmission timing corresponds to the second SRI field / second TPMI field. The first PUSCH transmission timing is transmitted in the second direction (the direction corresponding to the second TCI state and / or the second TRP), and the second PUSCH transmission timing is transmitted in the first direction (the direction corresponding to the first TCI state and / or the first TRP).

[0153] The terminal device determines the DMRS ports corresponding to the first PUSCH transmission timing and the second PUSCH transmission timing, and the terminal device can determine whether each DMRS port indicated by the first indication information belongs to the same CDM group.

[0154] If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the multiple DMRS ports can be divided according to the CDM group. R1 DMRS ports belonging to the same CDM group are assigned to the first PUSCH transmission time, and R2 DMRS ports belonging to another CDM group are assigned to the second PUSCH transmission time.

[0155] If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the DMRS ports indicated by the first indication information can be arranged in the first order of their numbers. The R1 adjacent DMRS ports (for example, the first R1 ports can be arranged from smallest to largest, or the first R1 ports can be arranged from largest to smallest, etc.) are allocated to the first PUSCH transmission opportunity, and the remaining R2 DMRS ports are allocated to the second PUSCH transmission opportunity.

[0156] When the DMRS ports indicated by the first indication information belong to the same CDM group, the DMRS ports indicated by the first indication information can be arranged in the first order of their numbers. The R1 adjacent DMRS ports (for example, the first R1 ports can be arranged from smallest to largest, or the first R1 ports can be arranged from largest to smallest, etc.) are allocated to the first PUSCH transmission opportunity, and the remaining R2 DMRS ports are allocated to the second PUSCH transmission opportunity.

[0157] Please see Figure 6 , Figure 6 This is a flowchart illustrating an uplink communication method based on simultaneous transmission across multiple panels, provided in an embodiment of this application. It should be noted that the uplink communication method based on simultaneous transmission across multiple panels in this embodiment is executed by a network device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 6 As shown, the method may include the following steps: Step 601: Send a first indication message to the terminal device, the first indication message being used to indicate the total DMRS port used for PUSCH transmission.

[0158] In this embodiment, the PUSCH transmission is based on the simultaneous transmission of STxMP by a single DCI spatially multiplexed SDM multi-antenna panel.

[0159] It should be noted that in Rel 18, the SDM uplink STxMP scheme based on S-DCI includes: different parts of a transport block TB of PUSCH are transmitted to two different TRPs on the same time-frequency resources through their respective corresponding DMRS ports or port combinations allocated on different panels. Different panels / TRPs / transmission timings are associated with different TCI states, i.e., beams.

[0160] In this context, the TO of PUSCH refers to the transmission of different data layers of a PUSCH transport block to different TRPs via different terminal panels on the same time-frequency resource. The portion of PUSCH data layer transmitted on each panel-TRP transmission link corresponds to a PUSCH transmission timing.

[0161] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, which can be used to indicate the total DMRS ports allocated by the network side for PUSCH transmission.

[0162] In various embodiments of this application, the maximum number of transport layers for the PUSCH is 4.

[0163] Optionally, the first indication information can be DCI.

[0164] Furthermore, this first indication information can be the antenna ports indication field in the DCI.

[0165] In this application embodiment, as an example, the DMRS port allocation with different parameter configurations under the uplink OFDM (CP-OFDM) waveform with cyclic prefix can be as shown in the various tables in the foregoing embodiments of this application, and will not be repeated here.

[0166] Optionally, the first indication information can be a code point in an indication field of the DCI. Different code points indicate different DMRS ports allocated (for example, when the DMRS type is 1, the number of symbols occupied by the pre-DMRS is 1, and the number of data transmission layers is 2, the first indication information is set to 0 to indicate that the total number of DMRS ports allocated to the PUSCH is DMRS ports numbered 0 and 1, and DMRS ports numbered 0 and 1 belong to the same CDM group; as another example, when the DMRS type is 1, the number of symbols occupied by the pre-DMRS is 1, and the number of data transmission layers is 3, the first indication information is set to 0 to indicate that the total number of DMRS ports allocated to the PUSCH is DMRS ports numbered 0, 1, and 2, and DMRS ports numbered 0 and 1 belong to the same CDM group, while DMRS port numbered 2 belongs to another CDM group).

[0167] Step 602: Send a second indication message to the terminal device. The second indication message is used to indicate the transmission layer information corresponding to the multiple PUSCH transmission times of the PUSCH.

[0168] The multiple PUSCH transmissions occur in the directions corresponding to multiple TCI states and / or TRPs.

[0169] In this embodiment of the application, the terminal device can receive the second indication information sent by the network device, and determine the transmission layer information corresponding to the multiple PUSCH transmission times of the PUSCH according to the indication of the second indication information.

[0170] Optionally, the second indication information may be an SRS resource set indicator.

[0171] In this embodiment of the application, the timing of the PUSCH transmission corresponds to at least one of the following: Codeword (CW); Panel; Detection Reference Signal (SRS) resource set; SRS Resource Indicator (SRI) indication field; Transmit Precoding Matrix Indicator (TPMI) indication field; Transmitter / Receiver Point (TRP); Used to indicate the TCI status of the beam.

[0172] In M-TRP transmission, two SRS resource sets are supported. Therefore, the DCI contains two SRI fields associated with the two SRS resource sets. Each SRI indication field indicates the SRS resources in the SRS resource set associated with that SRI field for a TRP. The two SRI indication fields correspond to different PUSCH transmission timings. The transmission scheduling of single TRP and multi-TRP can be dynamically indicated through the indication fields of the SRS resource sets.

[0173] In some implementations, the transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field in the two SRI / TPMI indication fields is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field in the two SRI / TPMI indication fields is R2. The second indication information can be used to indicate R1 and R2.

[0174] It can be understood that in codebook-based PUSCH transmission, the timing of the PUSCH transmission corresponds to the SRI indication field, which indicates the associated SRS resource set; in non-codebook-based PUSCH transmission, the timing of the PUSCH transmission corresponds to the TPMI indication field, which indicates the associated SRS resource set.

[0175] In some implementations, the second indication information may individually indicate the transmission layer number information corresponding to the plurality of transmission times, or it may combine to indicate a combination of transmission layer number information corresponding to the plurality of transmission times.

[0176] As an example, the second indication information can be a combination of the PUSCH transmission timing corresponding to the first SRI / TPMI indication field and the transmission layer information of the PUSCH transmission timing corresponding to the second SRI / TPMI indication field, that is, the combination information indicating the R1 and R2, such as indicating the combination information of the transmission layer corresponding to the two transmission timings as {R1, R2}.

[0177] In some implementations, the correspondence between the multiple PUSCH transmission timings and the SRI or TPMI domains is predefined.

[0178] In some implementations, the correspondence between the multiple PUSCH transmission times and the SRI or TPMI domain is indicated by the indication field of the SRS resource set indicator.

[0179] As one possible implementation, the correspondence between the multiple PUSCH transmission timings and the SRI domain or the TPMI domain is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0180] As another possible implementation, the correspondence between the multiple PUSCH transmission timings and the SRI domain or the TPMI domain is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0181] In some implementations, the second indication information is an SRS resource set indication, and the second indication information (SRS resource set indication) includes a first code point used to indicate the combination information of the transport layer number {R1, R2}, wherein the PUSCH transmission timing of the transport layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transport layer number R2 is transmitted in the second direction. The indication field of the SRS resource set indicates that the second code point is used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0182] In various embodiments of this application, the first instruction information and the second instruction information may be the same instruction information or different instruction information.

[0183] In this embodiment of the application, the DMRS port corresponding to each PUSCH transmission timing is determined by the terminal device.

[0184] In some implementations, the terminal device can determine the DMRS port corresponding to each PUSCH transmission timing based on a fixed rule.

[0185] In some implementations, the terminal device can determine whether the DMRS port indicated by the first indication information belongs to the same DMRS CDM group.

[0186] Optionally, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing, and the first DMRS port belongs to the same CDM group, while the second DMRS port belongs to another CDM group.

[0187] Optionally, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0188] Optionally, if the DMRS ports indicated by the first indication information belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0189] In summary, by sending a first indication to the terminal device, which indicates the total demodulation reference signal (DMRS) port used for Physical Uplink Shared Channel (PUSCH) transmission (where the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP), and sending a second indication to the terminal device, which indicates the transmission layer number (RANK) information corresponding to the multiple PUSCH transmission opportunities (where the multiple PUSCH transmission opportunities are transmitted in the directions corresponding to the multiple Transmission Configuration Indication (TCI) states and / or Transmitter Receiver Points (TRPs), the DMRS port used for transmission can be flexibly configured, effectively reducing transmission interference between multi-antenna panels, effectively improving transmission reliability and robustness, and improving system communication efficiency.

[0190] Corresponding to the uplink communication method based on simultaneous transmission of multiple panels provided in the above embodiments, this application also provides an uplink communication device based on simultaneous transmission of multiple panels. Since the uplink communication device based on simultaneous transmission of multiple panels provided in this application corresponds to the method provided in the above embodiments, the implementation of the uplink communication method based on simultaneous transmission of multiple panels is also applicable to the uplink communication device based on simultaneous transmission of multiple panels provided in the following embodiments, and will not be described in detail in the following embodiments.

[0191] Please see Figure 7 , Figure 7 This is a schematic diagram of an uplink communication device based on simultaneous transmission across multiple panels, provided as an embodiment of this application.

[0192] like Figure 7 As shown, the uplink communication device 700 based on simultaneous transmission across multiple panels includes: a transceiver unit 710 and a processing unit 720, wherein: The transceiver unit 710 is used to receive first indication information sent by the network device. The first indication information is used to indicate the total demodulation reference signal DMRS port for the Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on the Spatial Division Multiplexing (SDM) Multi-Antenna Panel (SDM) Simultaneous Transmission of STxMP. The transceiver unit 710 is also configured to receive second indication information sent by the network device. The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or the transmit / receive point TRP. The processing unit 720 is used to determine the DMRS port corresponding to each PUSCH transmission timing.

[0193] Optionally, the timing of this PUSCH transmission corresponds to at least one of the following: Typing; panel; Detection Reference Signal (SRS) resource set; SRS Resource Indicator (SRI) Indicator Field; Transmission Precoding Matrix Indicator (TPMI) field; Transmitter / Receiver Point (TRP); Used to indicate the TCI status of the beam.

[0194] Optionally, the transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field is R2. The second indication information is used to indicate R1 and R2.

[0195] Optionally, the second indication information is used to indicate the combination information of the transport layer number R1 and R2.

[0196] Optionally, the correspondence between the plurality of PUSCH transmission times and the SRI field or the TPMI field is predefined; or, the correspondence between the plurality of PUSCH transmission times and the SRI field or the TPMI field is indicated by the indication field indicated by the SRS resource set.

[0197] Optionally, the correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0198] Optionally, the correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0199] Optionally, the indication field of the SRS resource set indication includes a first code point for indicating the combination information of the transmission layer number {R1, R2}, wherein the PUSCH transmission timing of the transmission layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R2 is transmitted in the second direction. The indication field of the SRS resource set indicates that the second code point is used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. The first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0200] Optionally, the maximum number of transport layers for this PUSCH is 4.

[0201] Optionally, the processing unit 720 is specifically used for: If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission time and the second DMRS port corresponding to the second PUSCH transmission time are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission time, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission time, and the first DMRS port belongs to the same CDM group, while the second DMRS port belongs to another CDM group.

[0202] Optionally, the processing unit 720 is specifically used for: If the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission time and the second DMRS port corresponding to the second PUSCH transmission time are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission time, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH. The first DMRS port is the DMRS port number indicated by the first indication information arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port.

[0203] Optionally, the processing unit 720 is specifically used for: When the DMRS ports indicated by the first indication information belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission time and the second DMRS port corresponding to the second PUSCH transmission time are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission time, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission time. The first DMRS port is the DMRS port number indicated by the first indication information arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port.

[0204] The uplink communication device based on simultaneous transmission across multiple panels in this embodiment can receive first indication information sent by a network device. This first indication information indicates the total demodulation reference signal (DMRS) port used for physical uplink shared channel (PUSCH) transmission. The PUSCH transmission is based on spatial division multiplexing (SDM) multi-antenna panel simultaneous transmission (STxMP) using a single downlink control information (DCI). The device also receives second indication information sent by the network device. This second indication information indicates the transmission layer (RANK) information corresponding to multiple PUSCH transmission opportunities. These multiple PUSCH transmission opportunities are transmitted in directions corresponding to multiple transmission configuration indication (TCI) states and / or transmit / receive points (TRPs). Determining the DMRS port corresponding to each PUSCH transmission opportunity allows for flexible configuration of the DMRS port used for transmission, effectively reducing transmission interference between multiple antenna panels, improving transmission reliability and robustness, and increasing system communication efficiency.

[0205] Please see Figure 8 , Figure 8 This is a schematic diagram of an uplink communication device based on simultaneous transmission across multiple panels, provided as an embodiment of this application.

[0206] like Figure 8 As shown, the uplink communication device 800 based on simultaneous transmission across multiple panels includes: a transceiver unit 810, wherein: The transceiver unit 810 is used to send a first indication information to the terminal device. The first indication information is used to indicate the total demodulation reference signal DMRS port for the Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on the Spatial Division Multiplexing (SDM) Multi-Antenna Panel (SDM) Simultaneous Transmission of STxMP. The transceiver unit 810 is further configured to send a second indication information to the terminal device. The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or the transmit / receive point TRP.

[0207] Optionally, the timing of this PUSCH transmission corresponds to at least one of the following: Typing; panel; Detection Reference Signal (SRS) resource set; SRS Resource Indicator (SRI) Indicator Field; Transmission Precoding Matrix Indicator (TPMI) field; Transmitter / Receiver Point (TRP); Used to indicate the TCI status of the beam.

[0208] Optionally, the transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field is R2. The second indication information is used to indicate R1 and R2.

[0209] Optionally, the second indication information is used to indicate the combination information of the transport layer number R1 and R2.

[0210] Optionally, the correspondence between the plurality of PUSCH transmission times and the SRI field or the TPMI field is predefined; or, the correspondence between the plurality of PUSCH transmission times and the SRI field or the TPMI field is indicated by the indication field indicated by the SRS resource set.

[0211] Optionally, the correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0212] Optionally, the correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0213] Optionally, the first code point included in the SRS resource set indication field is used to indicate the combination information of the transmission layer number {R1, R2}, wherein the PUSCH transmission timing of the transmission layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R2 is transmitted in the second direction. The second code point included in the SRS resource set indication field is used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. The first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

[0214] Optionally, the maximum number of transport layers for this PUSCH is 4.

[0215] Optionally, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first PUSCH transmission timing corresponds to the first DMRS port, and the second PUSCH transmission timing corresponds to the second DMRS port. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. The first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

[0216] Optionally, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first PUSCH transmission timing corresponds to the first DMRS port, and the second PUSCH transmission timing corresponds to the second DMRS port. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0217] Optionally, when the DMRS ports indicated by the first indication information belong to the same CDM group, the first PUSCH transmission timing corresponds to the first DMRS port, and the second PUSCH transmission timing corresponds to the second DMRS port. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports that are arranged in a first order after the numbers of the DMRS ports indicated by the first indication information are arranged in a first order, and the second DMRS port is the remaining DMRS port.

[0218] The uplink communication device based on simultaneous transmission across multiple panels in this embodiment can send a first indication to the terminal device. This first indication indicates the total demodulation reference signal (DMRS) port used for the transmission of the Physical Uplink Shared Channel (PUSCH). The PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission (STxMP) using a single downlink control information (DCI). The device can also send a second indication to the terminal device. This second indication indicates the transmission layer (RANK) combination information corresponding to the multiple PUSCH transmission opportunities. These multiple PUSCH transmission opportunities are transmitted in the directions corresponding to multiple Transmission Configuration Indication (TCI) states and / or Transmitter / Receiver Point (TRP). The DMRS port corresponding to each PUSCH transmission opportunity is determined by the terminal device based on a first rule. This allows for flexible configuration of the DMRS port used for transmission, effectively reducing transmission interference between multiple antenna panels, improving transmission reliability and robustness, and increasing system communication efficiency.

[0219] To implement the above embodiments, this application also proposes a communication device, including: a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform... Figures 2 to 5 The method shown in the embodiment.

[0220] To implement the above embodiments, this application also proposes a communication device, including: a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform... Figure 6 The method shown in the embodiment.

[0221] To implement the above embodiments, this application also proposes a communication device, including: a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to execute the code instructions to perform... Figures 2 to 5 The method shown in the embodiment.

[0222] To implement the above embodiments, this application also proposes a communication device, including: a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to execute the code instructions to perform... Figure 6 The method shown in the embodiment.

[0223] Please see Figure 9 , Figure 9This is a schematic diagram of another uplink communication device based on simultaneous transmission across multiple panels, provided in this embodiment. The uplink communication device 900 based on simultaneous transmission across multiple panels can be a network device, a terminal device, a chip, chip system, or processor that supports the implementation of the above methods in a network device, or a chip, chip system, or processor that supports the implementation of the above methods in a terminal device. This device can be used to implement the methods described in the above method embodiments; please refer to the descriptions in the above method embodiments for details.

[0224] The uplink communication device 900 based on simultaneous transmission across multiple panels may include one or more processors 901. The processor 901 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the uplink communication device based on simultaneous transmission across multiple panels (e.g., base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0225] Optionally, the uplink communication device 900 based on simultaneous transmission across multiple panels may further include one or more memories 902, on which a computer program 903 may be stored. The processor 901 executes the computer program 903 to cause the uplink communication device 900 based on simultaneous transmission across multiple panels to perform the methods described in the above method embodiments. The computer program 903 may be embedded in the processor 901, in which case the processor 901 may be implemented in hardware.

[0226] Optionally, the memory 902 may also store data. The uplink communication device 900 and the memory 902, which are based on simultaneous transmission across multiple panels, can be configured separately or integrated together.

[0227] Optionally, the uplink communication device 900 based on simultaneous transmission across multiple panels may further include a transceiver 905 and an antenna 906. The transceiver 905, also known as a transceiver unit, transceiver, or transceiver circuit, is used to implement transceiver functions. The transceiver 905 may include a receiver and a transmitter. The receiver, also known as a receiver circuit, is used to implement a receiving function; the transmitter, also known as a transmitter or transmitting circuit, is used to implement a transmitting function.

[0228] Optionally, the uplink communication device 900 based on simultaneous transmission across multiple panels may further include one or more interface circuits 907. The interface circuits 907 are used to receive code instructions and transmit them to the processor 901. The processor 901 executes the code instructions to cause the uplink communication device 900 based on simultaneous transmission across multiple panels to perform the methods described in the above method embodiments.

[0229] In one implementation, the processor 901 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0230] In one implementation, the uplink communication device 900 based on simultaneous transmission across multiple panels may include circuitry capable of transmitting, receiving, or communicating as described in the aforementioned method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0231] The uplink communication device based on simultaneous transmission across multiple panels described in the above embodiments can be a network device or a terminal device, but the scope of the uplink communication device based on simultaneous transmission across multiple panels described in this disclosure is not limited to this, and the structure of the uplink communication device based on simultaneous transmission across multiple panels can be unrestricted. Figures 7-8 The limitations. Uplink communication devices based on simultaneous transmission across multiple panels can be independent devices or part of a larger device. For example, an uplink communication device based on simultaneous transmission across multiple panels could be: (1) Independent integrated circuit IC, or chip, or chip system or subsystem; (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs; (3) ASIC, such as modem; (4) Modules that can be embedded in other devices; (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc. (6) Others, etc.

[0232] For uplink communication devices that can transmit data simultaneously across multiple panels, and can be chips or chip systems, please refer to [reference needed]. Figure 10 The diagram shows the structure of the chip. Figure 10 The chip shown includes a processor 1001 and an interface 1002. There can be one or more processors 1001, and multiple interfaces 1002.

[0233] Regarding the case where the chip is used to implement the functions of the terminal device in the embodiments of this disclosure: Interface 1002 is used for code instructions and their transmission to the processor; Processor 1001 is used to run code instructions to perform, such as Figures 2 to 8 The method.

[0234] For cases where the chip is used to implement the functions of the network device in the embodiments of this disclosure: Interface 1002 is used for code instructions and their transmission to the processor; Processor 1001 is used to run code instructions to perform, such as Figure 9 The method.

[0235] Optionally, the chip also includes a memory 1003 for storing necessary computer programs and data.

[0236] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0237] This disclosure also provides a communication system, which includes the aforementioned... Figures 7-8 The embodiments include an uplink communication device based on simultaneous transmission across multiple panels as a terminal device and an uplink communication device based on simultaneous transmission across multiple panels as a network device; or, the system includes the aforementioned... Figure 9The embodiments include an uplink communication device based on simultaneous transmission across multiple panels as a terminal device and an uplink communication device based on simultaneous transmission across multiple panels as a network device.

[0238] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0239] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0240] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs. When a computer program is loaded and executed on a computer, it generates, in whole or in part, the processes or functions according to the embodiments of this disclosure. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0241] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0242] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0243] The correspondences shown in the tables of this disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values; this disclosure is not limiting. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondences shown in some rows of the tables in this disclosure may not be configured. Furthermore, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the headers of the above tables can also use other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. In the implementation of the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables, etc.

[0244] The predefined terms in this disclosure can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0245] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0246] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0247] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0248] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An uplink communication method based on simultaneous transmission across multiple panels, characterized in that, The method is executed by a terminal device, and the method includes: Determine the first instruction information and the second instruction information; The first indication information is used to indicate the total demodulation reference signal DMRS port for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on Single Downlink Control Information (DCI). The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit-receive point TRP; Determine the DMRS port corresponding to each PUSCH transmission timing.

2. The method according to claim 1, characterized in that, The PUSCH transmission timing corresponds to at least one of the following: Typing; panel; Detection Reference Signal (SRS) resource set; SRS Resource Indicator (SRI) Indicator Field; Transmission Precoding Matrix Indicator (TPMI) field; Transmitter / Receiver Point (TRP); Used to indicate the TCI status of the beam.

3. The method according to claim 2, characterized in that, The transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field is R2. The second indication information is used to indicate R1 and R2.

4. The method according to claim 3, characterized in that, The second indication information is used to indicate the combination information of the transmission layer numbers R1 and R2.

5. The method according to claim 3, characterized in that, The correspondence between the plurality of PUSCH transmission opportunities and the SRI field or the TPMI field is predefined; or, the correspondence between the plurality of PUSCH transmission opportunities and the SRI field or the TPMI field is indicated by the indication field indicated by the SRS resource set.

6. The method according to claim 5, characterized in that, The correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

7. The method according to claim 5, characterized in that, The correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

8. The method according to any one of claims 3-5, characterized in that, The indication field of the SRS resource set indication includes a first code point used to indicate the combination information of the transmission layer number {R1, R2}, wherein the PUSCH transmission timing of the transmission layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R2 is transmitted in the second direction. The indication field of the SRS resource set indication includes a second code point used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. The first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

9. The method according to any one of claims 1-8, characterized in that, The maximum number of transport layers for the PUSCH is 4.

10. The method according to claim 9, characterized in that, Determining the DMRS port corresponding to each PUSCH transmission timing includes: If the DMRS ports indicated by the first indication information do not belong to the same CDM group, determine the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing, and the first DMRS port belongs to the same CDM group, while the second DMRS port belongs to another CDM group.

11. The method according to claim 9, characterized in that, Determining the DMRS port corresponding to each PUSCH transmission timing includes: When the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH. The first DMRS port is the DMRS port number indicated by the first indication information arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port.

12. The method according to claim 9, characterized in that, Determining the DMRS port corresponding to each PUSCH transmission timing includes: When the DMRS ports indicated by the first indication information belong to the same CDM group, the first DMRS port corresponding to the first PUSCH transmission timing and the second DMRS port corresponding to the second PUSCH transmission timing are determined. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS port number indicated by the first indication information arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port.

13. An uplink communication method based on simultaneous transmission across multiple panels, characterized in that, The method is performed by a network device, and the method includes: Send the first instruction information and the second instruction information to the terminal device; The first indication information is used to indicate the total demodulation reference signal DMRS port for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on Single Downlink Control Information (DCI). The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit / receive point TRP.

14. The method according to claim 13, characterized in that, The PUSCH transmission timing corresponds to at least one of the following: Typing; panel; Detection Reference Signal (SRS) resource set; SRS Resource Indicator (SRI) Indicator Field; Transmission Precoding Matrix Indicator (TPMI) field; Transmitter / Receiver Point (TRP); Used to indicate the TCI status of the beam.

15. The method according to claim 14, characterized in that, The transmission layer number of the PUSCH transmission timing corresponding to the first SRI indication field or the first TPMI indication field is R1, and the transmission layer number of the PUSCH transmission timing corresponding to the second SRI indication field or the second TPMI indication field is R2. The second indication information is used to indicate R1 and R2.

16. The method according to claim 15, characterized in that, The second indication information is used to indicate the combination information of the transmission layer numbers R1 and R2.

17. The method according to claim 15, characterized in that, The correspondence between the plurality of PUSCH transmission opportunities and the SRI field or the TPMI field is predefined; or, the correspondence between the plurality of PUSCH transmission opportunities and the SRI field or the TPMI field is indicated by the indication field indicated by the SRS resource set.

18. The method according to claim 17, characterized in that, The correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the first SRI field or the first TPMI field; The timing of PUSCH transmission in the second direction corresponds to the second SRI field or the second TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

19. The method according to claim 17, characterized in that, The correspondence between the multiple PUSCH transmission times and the SRI field or the TPMI field is as follows: The timing of PUSCH transmission in the first direction corresponds to the second SRI field or the second TPMI field; The timing of PUSCH transmission in the second direction corresponds to the first SRI field or the first TPMI field; Wherein, the first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

20. The method according to any one of claims 15-17, characterized in that, The SRS resource set indication field includes a first code point used to indicate the combination information of the transmission layer number {R1, R2}, wherein the PUSCH transmission timing of the transmission layer number R1 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R2 is transmitted in the second direction. The second code point included in the SRS resource set indication field is used to indicate the combination information of the transmission layer number {R2, R1}, wherein the PUSCH transmission timing of the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission timing of the transmission layer number R1 is transmitted in the second direction. The first direction is the direction corresponding to the first TCI state and / or the first TRP, and the second direction is the direction corresponding to the second TCI state and / or the second TRP.

21. The method according to any one of claims 13-20, characterized in that, The maximum number of transport layers for the PUSCH is 4.

22. The method according to claim 21, characterized in that, When the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first PUSCH transmission timing corresponds to the first DMRS port, and the second PUSCH transmission timing corresponds to the second DMRS port. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. Furthermore, the first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

23. The method according to claim 21, characterized in that, When the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first PUSCH transmission timing corresponds to the first DMRS port, and the second PUSCH transmission timing corresponds to the second DMRS port. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH. The first DMRS port is the DMRS ports whose numbers are arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port.

24. The method according to claim 21, characterized in that, When the DMRS ports indicated by the first indication information belong to the same CDM group, the first PUSCH transmission timing corresponds to the first DMRS port, and the second PUSCH transmission timing corresponds to the second DMRS port. The number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission timing, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission timing. The first DMRS port is the DMRS ports whose numbers are arranged in a first order and then the adjacent DMRS ports are sorted. The second DMRS port is the remaining DMRS port.

25. An uplink communication device based on simultaneous transmission across multiple panels, characterized in that, The device is used for execution on a terminal device, and the device includes: The processing unit is used to determine the first indication information and the second indication information; The first indication information is used to indicate the total demodulation reference signal DMRS port for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on Single Downlink Control Information (DCI). The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit-receive point TRP; The processing unit is also used to determine the DMRS port corresponding to each PUSCH transmission timing.

26. An uplink communication device based on simultaneous transmission across multiple panels, characterized in that, The device is used in a network device, and the device includes: The transceiver unit is used to send first instruction information and second instruction information to the terminal device. The first indication information is used to indicate the total demodulation reference signal DMRS port for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on Spatial Division Multiplexing (SDM) multi-antenna panel simultaneous transmission of STxMP based on Single Downlink Control Information (DCI). The second indication information is used to indicate the transmission layer number RANK information corresponding to the multiple PUSCH transmission opportunities of the PUSCH, wherein the multiple PUSCH transmission opportunities are transmitted in the direction corresponding to the multiple transmission configuration indication TCI status and / or transmit / receive point TRP.

27. A communication device, characterized in that, The device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as described in any one of claims 1 to 12, or to perform the method as described in any one of claims 13 to 24.

28. A communication device, characterized in that, include: Processor and interface circuitry; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method as described in any one of claims 1 to 12, or to perform the method as described in any one of claims 13 to 24.

29. A computer-readable storage medium for storing instructions that, when executed, cause the method of any one of claims 1 to 12 to be implemented, or cause the method of any one of claims 13 to 24 to be implemented.

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