Wireless communication method and device, and storage medium

Abstract

Provided are a wireless communication method and device, and a storage medium, the method comprising: a terminal device receiving at least one maximum transmission layer number sent by a network device, the at least one maximum transmission layer number is used for determining a first maximum transmission layer number, a second maximum transmission layer number and / or the at least one maximum transmission layer number is used for determining a third maximum transmission layer number, and the first maximum transmission layer number and the second maximum transmission layer number are used for a first PUSCH transmission scheme; the first PUSCH transmission scheme is associated with two different space parameters, the third maximum transmission layer number is used for a second PUSCH transmission scheme, and the second PUSCH transmission scheme is associated with one space parameter.

Description

Wireless communication method, device, and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of mobile communication technologies, and in particular to a wireless communication method and device, and a storage medium. Background Art

[0002] If a terminal device is configured with multiple panels and supports simultaneous transmission of the physical uplink shared channel (PUSCH) on multiple panels, if different signals are simultaneously transmitted using different beams on different panels, the propagation distances between the terminal device and different transmission reception points (TRPs) are different, and the channel conditions of different panels may be different, the number of transmission layers of the PUSCH transmitted through multiple panels may be different. However, the related art uses the same number of transmission layers for different PUSCHs, which is not applicable to PUSCH transmission in a multi-panel scenario.

[0003] Summary of the Invention

[0004] Embodiments of the present application provide a wireless communication method and device, and a storage medium.

[0005] The wireless communication method provided in the embodiment of the present application includes:

[0006] The terminal device receives at least one maximum number of transmission layers sent by the network device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0007] The wireless communication method provided in the embodiment of the present application includes:

[0008] The network device sends at least one maximum number of transmission layers to the terminal device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0009] The terminal device provided in the embodiment of the present application includes:

[0010] A first communication unit is configured to receive at least one maximum number of transmission layers sent by a network device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers, and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0011] The network device provided in the embodiment of the present application includes:

[0012] The second communication unit is configured to send at least one maximum number of transmission layers to the terminal device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0013] The communication device provided in an embodiment of the present application may be a terminal device or a network device in the above-mentioned solution, and the communication device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and execute the computer program stored in the memory to perform the above-mentioned wireless communication method.

[0014] The chip provided in the embodiment of the present application is used to implement the above-mentioned wireless communication method.

[0015] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned wireless communication method.

[0016] The computer-readable storage medium provided in an embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned wireless communication method.

[0017] The computer program product provided in the embodiments of the present application includes computer program instructions, which enable a computer to execute the above-mentioned wireless communication method.

[0018] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned wireless communication method.

[0019] Through the above technical solution, the network device configures at least one maximum number of transmission layers for the terminal device. The terminal device can determine the corresponding maximum number of transmission layers for the first PUSCH transmission scheme and the second PUSCH transmission scheme according to the at least one maximum number of transmission layers configured by the network device, so that the maximum number of transmission layers corresponding to the PUSCH under different transmission schemes can be flexibly set according to the configuration of the network device, thereby removing the restriction that the precoding information in the first PUSCH transmission scheme and the two transmission layer numbers must be the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] FIG1 is a schematic diagram of an application scenario of an embodiment of the present application;

[0022] FIG2 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0023] FIG3 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0024] FIG4 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0025] FIG5 is an optional schematic diagram of a first PUSCH transmission scheme provided in an embodiment of the present application;

[0026] FIG6 is an optional schematic diagram of a first PUSCH transmission scheme provided in an embodiment of the present application;

[0027] FIG7 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0028] FIG8 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0029] FIG9A is a schematic diagram of an optional relationship between a first PUSCH and a second PUSCH provided in an embodiment of the present application;

[0030] FIG9B is a schematic diagram of an optional relationship between PUSCH1 and PUSCH2 provided in an embodiment of the present application;

[0031] FIG10 is an optional schematic structural diagram of a terminal device provided in an embodiment of the present application;

[0032] FIG11 is an optional schematic structural diagram of a terminal device provided in an embodiment of the present application;

[0033] FIG12 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0034] FIG13 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0035] FIG14 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] FIG1 is a schematic diagram of an application scenario of an embodiment of the present application.

[0038] As shown in Figure 1, a communication system 100 may include a terminal device 110 and a network device 120. The network device 120 may communicate with the terminal device 110 via an air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0039] It should be understood that the embodiments of the present application are only illustrative of the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0040] In the communication system 100 shown in Figure 1, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area and may communicate with the terminal device 110 (eg, UE) located within the coverage area.

[0041] The network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0042] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0043] For example, the terminal device 110 may refer to an access terminal, UE, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0044] The wireless communication system 100 may further include a core network device 130 for communicating with the base station. The core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device of an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that can be implemented by SMF and PGW-C. During the network evolution process, the above-mentioned core network device may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in the embodiments of the present application.

[0045] The functional units in the communication system 100 may also establish connections and implement communication via next generation (NG) network interfaces.

[0046] For example, the terminal device establishes an air interface connection with the access network device through the Uu interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (referred to as N3); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (referred to as N2); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (referred to as N4); the UPF can exchange user plane data with the data network through the NG interface 6 (referred to as N6); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (referred to as N11); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (referred to as N7).

[0047] Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0048] It should be noted that Figure 1 is merely an example of a system applicable to this application. Of course, the methods described in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, "A indicates B" can mean that A directly indicates B, for example, B can obtain information through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain information through C; or it can mean that A and B have an association relationship. It should also be understood that the "correspondence" mentioned in the embodiments of this application can mean that there is a direct or indirect correspondence between two objects, or that there is an association relationship between the two objects, or a relationship between an indicator and the indicated, a configuration and the configured, and so on. It should also be understood that the “predefined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, predefined can refer to a definition in a protocol. It should also be understood that in the embodiments of the present application, the “protocol” can refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0049] To facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the related technologies of the embodiments of the present application. The following related technologies are optional solutions that can be combined with the technical solutions of the embodiments of the present application in any way, and all of them fall within the scope of protection of the embodiments of the present application. This involves a codebook-based PUSCH transmission scheme and a non-codebook-based PUSCH transmission scheme.

[0050] The codebook-based PUSCH transmission scheme includes:

[0051] S1. The user equipment (UE) sends a sounding reference signal (SRS) for a codebook to the network device.

[0052] S2. The network device performs uplink channel detection based on the SRS sent by the UE, schedules resources for the UE, and determines the SRS resources, number of uplink transmission layers, and precoding matrix corresponding to the PUSCH transmission. The network device indicates the above information to the terminal device through downlink control information (DCI).

[0053] S3. The terminal device receives the DCI and sends the PUSCH according to the instructions of the DCI.

[0054] In the codebook-based PUSCH transmission scheme, the network device indicates the SRS resources corresponding to the PUSCH, the number of PUSCH transmission layers, and the PUSCH precoding matrix to the UE through the DCI. The field in the DCI that carries the precoding matrix and the number of transmission layers is the wideband precoding matrix indicator (TPMI) field, and the field in the DCI that indicates the specific SRS resources in the SRS resource set is the SRS resource indicator (SRI) field. Among them, the number of PUSCH transmission layers and the PUSCH precoding matrix are indicated by joint coding.

[0055] For a codebook-based transmission scheme, the terminal device determines the number of bits in the TPMI field according to the configured maximum number of transmission layers, also called the maximum rank (maxRank), that is, the value of the configured high-layer parameter maxRank.

[0056] Non-codebook-based PUSCH transmission schemes include:

[0057] S1. The UE measures the downlink reference signal, obtains a candidate precoding matrix, precodes the SRS using the candidate precoding matrix, and then sends the SRS for non-codebook use to the network device.

[0058] S2. The network device performs uplink channel detection based on the SRS sent by the UE, schedules resources for the UE, and determines the SRS resources corresponding to the beam transmitted by the PUSCH. The network device indicates the above information to the terminal device via the DCI.

[0059] S3. The terminal device receives the DCI and sends the PUSCH according to the instructions of the DCI.

[0060] In non-codebook-based PUSCH transmission schemes, the network device indicates the number of PUSCH transmission layers and the SRS resources in the SRS resource set to the terminal device through the SRI field in the DCI. For non-codebook-based transmission, the terminal device determines the number of SRI bits based on the configured maximum number of transmission layers, that is, the configured high-layer parameter maxMIMO-Layers.

[0061] PUSCH transmission scheme for multiple TRPs

[0062] The NR system introduces incoherent downlink and uplink transmission based on multiple Transmitter Relays (TRPs). The backhaul between TRPs can be ideal or non-ideal. Ideal backhaul allows for fast and dynamic information exchange between TRPs. However, non-ideal backhaul allows for only quasi-static information exchange due to high latency.

[0063] In downlink non-coherent transmission, multiple TRPs can use different control channels to independently schedule multiple PDSCH transmissions of a terminal, or use the same control channel to schedule the transmission of different TRPs, where the data of different TRPs use different transmission layers. The latter can only be used in ideal backhaul situations.

[0064] The UE can send PUSCH to two TRPs in a time division multiplexing (TDM) manner. The terminal device aligns the PUSCH transmitted to different TRPs with the corresponding TRPs for analog beamforming, thereby distinguishing different PUSCHs in the spatial domain and improving uplink spectrum efficiency.

[0065] The network device can schedule the terminal device to transmit PUSCH to two TRPs through one DCI. The PUSCH transmitted to the two TRPs can be configured with independent transmission parameters, such as beam and precoding matrix, but the number of transmission layers of the PUSCH transmitted to the two TRPs is constrained to be the same.

[0066] For codebook-based PUSCH transmission, the single DCI needs to include two TPMI fields. The first TPMI field is used to indicate the precoding information and number of transmission layers of the PUSCH sent to TRP1. The number of transmission layers of the PUSCH sent to TRP2 is the same as the number of transmission layers indicated by the first TPMI field. The first SRI field is used to indicate the beam direction of the PUSCH sent to TRP1, and the second SRI field is used to indicate the beam direction of the PUSCH sent to TRP2. Among them, the network device is configured with 2 SRS resource sets (SRS resource sets). The first SRI field and the second SRI field correspond to 2 SRS resource sets respectively, which are used to indicate the beam direction of the PUSCH transmitted to the two TRPs. It can be understood that the second TPMI field only needs to indicate the precoding information, and the number of transmission layers defaults to the same as the number of transmission layers indicated by the first TPMI field. Among them, the precoding information can be understood as a precoding matrix.

[0067] For non-codebook based PUSCH transmission, the single DCI needs to contain two SRI fields, where the first SRI field is used to indicate the beam direction and number of transmission layers of the PUSCH sent to TRP1, and the second SRI field is used to indicate the beam direction of the PUSCH sent to TRP2. The number of transmission layers of the PUSCH sent to TRP2 is the same as the number of transmission layers indicated by the first SRI.

[0068] The network device can also use multiple DCIs to schedule the terminal device to transmit PUSCH to two TRPs. These DCIs can be carried by different control resource sets (CORESETs). The network side configures multiple CORESET groups, and each TRP is scheduled using the CORESETs in its own CORESET group. That is, different TRPs can be distinguished by the CORESET group. For example, the network device can configure a CORESET group index for each CORESET, and different indexes correspond to different TRPs.

[0069] Based on the above records, the network device can schedule the PUSCH sent to two TRPs through a DCI, add a TPMI field in the DCI, that is, the DCI includes two TPMI fields, and use the first TPMI field to indicate the precoding matrix and number of transmission layers of the PUSCH sent to one of the TRPs, and by constraining the number of transmission layers of the PUSCH sent to the two TRPs to be the same, the second TPMI field only needs to indicate the precoding matrix of the PUSCH sent to the other TRP.

[0070] For a terminal device, if the terminal device is configured with multiple panels and supports simultaneous transmission of PUSCH on multiple panels, if different signals are transmitted simultaneously using different beams on different panels, the propagation distance between the terminal device and different receiving TRPs is different, and the channel conditions of different panels may be different, the number of transmission layers of the PUSCH transmitted through multiple panels may be different.

[0071] However, existing technologies do not support configuring the maximum number of transmission layers for two panels, nor do they specify how to determine the number of TPMI and SRI bits. Furthermore, multi-panel simultaneous interpretation solutions can switch between single-panel / TRP transmission solutions. In this case, the maximum number of transmission layers supported by these solutions differs from that of single-panel / TRP transmission solutions. There are currently no regulations on how to handle this switchover.

[0072] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0073] The wireless communication method provided in the embodiment of the present application is applied to a terminal device, as shown in FIG2 , and includes:

[0074] S201. The terminal device receives at least one maximum number of transmission layers sent by the network device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers, and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0075] The wireless communication method provided in the embodiment of the present application is applied to a network device, as shown in FIG3 , and includes:

[0076] S301. The network device sends at least one maximum number of transmission layers to the terminal device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers, and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers. The first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, and the first PUSCH transmission scheme is associated with two different spatial parameters. The third maximum number of transmission layers is used for a second PUSCH transmission scheme, and the second PUSCH transmission scheme is associated with one spatial parameter.

[0077] The wireless communication method provided in the embodiment of the present application is applied to a communication system including a terminal device and a network device, as shown in FIG4 , including:

[0078] S401. The network device sends at least one maximum number of transmission layers to the terminal device.

[0079] The at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers, and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, the first PUSCH transmission scheme is associated with two different spatial parameters, the third maximum number of transmission layers is used for a second PUSCH transmission scheme, and the second PUSCH transmission scheme is associated with one spatial parameter.

[0080] Next, the wireless communication method shown in FIG. 2 , FIG. 3 or FIG. 4 will be described.

[0081] The network device sends at least one maximum transmission layer number to the terminal device, where the at least one maximum transmission layer number includes at least one of the following: a first maximum transmission layer number, a second maximum transmission layer number, and a third maximum transmission layer number.

[0082] The terminal device receives at least one maximum number of transmission layers sent by the network device, and determines the first maximum number of transmission layers and the second maximum number of transmission layers associated with the first PUSCH transmission scheme and / or the third maximum number of transmission layers associated with the second PUSCH transmission scheme based on the at least one maximum number of transmission layers sent by the network device.

[0083] In one example, the terminal device determines a first maximum number of transmission layers and a second maximum number of transmission layers based on at least one maximum number of transmission layers sent by the network device. In one example, the terminal device determines a third maximum number of transmission layers based on at least one maximum number of transmission layers sent by the network device. In one example, the terminal device determines the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers based on at least one maximum number of transmission layers sent by the network device.

[0084] The first PUSCH transmission scheme is associated with two different spatial parameters: the first spatial parameter and the second spatial parameter, and the second PUSCH transmission scheme is associated with the third spatial parameter. It can be understood that the first PUSCH transmission scheme can be understood as a multi-panel simultaneous PUSCH transmission scheme, and the second PUSCH scheme can be understood as a single panel / TRP PUSCH transmission scheme.

[0085] In some embodiments, the third spatial parameter is different from both the first spatial parameter and the second spatial parameter. In some embodiments, the third spatial parameter is the same as the first spatial parameter or the second spatial parameter.

[0086] In an embodiment of the present application, the third spatial parameter is used for the transmission of a single PUSCH, and the first spatial parameter and the second spatial parameter are used for the simultaneous transmission of the first PUSCH and the second PUSCH. When the third spatial parameter is the same as the first spatial parameter or the second spatial parameter, when the terminal device switches between the transmission of a single PUSCH and the simultaneous transmission of multiple PUSCHs, it is not necessary to switch all the spatial parameters, but only to switch one set of spatial parameters, and the other set of spatial parameters can be maintained, thereby reducing the delay in the terminal device switching the transmission scheme and improving resource utilization.

[0087] The first PUSCH transmission scheme uses transmission of a first PUSCH and a second PUSCH, with first spatial parameters used for the first PUSCH and second spatial parameters used for the second PUSCH.

[0088] It can be understood that the first PUSCH and the second PUSCH can be scheduled by the same DCI or by different DCIs.

[0089] If the second PUSCH transmission scheme is used for the transmission of the third PUSCH, the third spatial parameters are used for the transmission of the third PUSCH. The third PUSCH can also be multiple PUSCHs repeatedly transmitted in the time domain. This can be understood as one panel of the UE sending one PUSCH to one TRP, or multiple repeated PUSCHs. Another case of the second PUSCH transmission scheme can be understood as multiple panels of the UE sending one PUSCH to one TRP, or multiple repeated PUSCHs.

[0090] In some embodiments, the first PUSCH transmission scheme is used for transmission of a first physical uplink shared channel PUSCH and a second PUSCH, the first PUSCH and the second PUSCH overlap in the time domain, and the second PUSCH transmission scheme is used for transmission of a third PUSCH.

[0091] The first maximum number of transmission layers and the second maximum number of transmission layers are respectively used for the first PUSCH and the second PUSCH that overlap in time. The first PUSCH and the second PUSCH can be transmitted by different antenna panels (panels) and received by different TRPs on the network device side. It can be understood that the first panel transmits the first PUSCH to the first TRP, and the second panel transmits the second PUSCH to the second TRP.

[0092] The first PUSCH and the second PUSCH may completely overlap or partially overlap in time.

[0093] The first maximum number of transmission layers is used to limit the number of transmission layers used for transmission of the first PUSCH, the second maximum number of transmission layers is used to limit the number of transmission layers used for transmission of the second PUSCH, and the third maximum number of transmission layers is used to limit the number of transmission layers used for transmission of the third PUSCH.

[0094] In some embodiments, the first maximum number of transmission layers is the maximum number of transmission layers used for the transmission of the first PUSCH, the second maximum number of transmission layers is the maximum number of transmission layers used for the transmission of the second PUSCH, and the third maximum number of transmission layers is the maximum number of transmission layers used for the transmission of the third PUSCH.

[0095] In the embodiment of the present application, the maximum number of transmission layers (maxMIMO-Layers) can be replaced by the maximum rank (maxRank).

[0096] In the embodiment of the present application, the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers can be sent together or separately. When sent separately, the third maximum number of transmission layers and the first and second maximum numbers of transmission layers can be carried in different first parameters. In this case, the first and second maximum numbers of transmission layers can be carried in the same first parameter or in different first parameters.

[0097] In the wireless communication method provided in the embodiment of the present application, a network device configures at least one maximum number of transmission layers for a terminal device. The terminal device can determine the corresponding maximum number of transmission layers for a first PUSCH transmission scheme and a second PUSCH transmission scheme respectively according to the at least one maximum number of transmission layers configured by the network device, so that the maximum number of transmission layers corresponding to the PUSCH under different transmission schemes can be flexibly set according to the configuration of the network device, thereby removing the restriction that the two transmission layer numbers used in the first PUSCH transmission scheme must be the same.

[0098] In some embodiments, the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, the first PUSCH transmission scheme is associated with two sets of spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, and the second PUSCH transmission scheme is associated with one set of transmission parameters.

[0099] Under the first PUSCH transmission scheme, the terminal device uses two sets of spatial parameters to transmit PUSCH, where the first spatial parameters are used for the transmission of the first PUSCH and the second spatial parameters are used for the transmission of the second PUSCH. It can be understood that under the first PUSCH transmission scheme, the terminal device transmits two PUSCHs simultaneously based on two panels, that is, the first PUSCH and the second PUSCH are transmitted through different panels and overlap in the time domain.

[0100] In some embodiments, the first PUSCH transmission scheme includes: the transmission mode of the two PUSCHs transmitted simultaneously includes one of the following: spatial division multiplexing (SDM), time division multiplexing (TDM), and single frequency network (SFN). In this case, the two PUSCHs transmitted simultaneously are scheduled by the same DCI.

[0101] In some embodiments, the first PUSCH transmission scheme includes: the two PUSCHs transmitted simultaneously are scheduled by respective DCIs; or, one of the two PUSCHs transmitted simultaneously is DCI scheduled and the other is a non-scheduled PUSCH; or, both the two PUSCHs transmitted simultaneously are non-scheduled PUSCHs.

[0102] In one example, when the transmission mode of two concurrently transmitted PUSCHs is SDM, each carries a different transport layer of a PUSCH and is sent to the TRP(s) via different panels of the UE. The two concurrently transmitted PUSCHs use the same time and frequency resources. As shown in Figure 5, the transport layer of the PUSCH sent via panel 1 is associated with the first TCI state, and the transmitted PUSCH is denoted as the first PUSCH. The other transport layer of the PUSCH sent via panel 2 is associated with the second TCI state, and the transmitted PUSCH is denoted as the second PUSCH.

[0103] In one example, when two PUSCHs are transmitted simultaneously using SFN, repeated transmissions of a PUSCH are sent to TRP(s) via different panels. The first and second PUSCHs use the same frequency resources, time resources, and DMRS ports. As shown in Figure 6, PUSCH1 of panel 1 and PUSCH2 of panel 2 share the same transport layer for transmission.

[0104] In some embodiments, the spatial parameter includes at least one of the following: transmission configuration indicator (TCI) status; antenna panel information; control resource set CORESET group information; SRS resource set information; beam information.

[0105] The antenna panel information indicates the panel of the terminal device.

[0106] The CORESET group information is used to indicate a CORESET group. It is understandable that different CORESET groups are associated with different TRPs, so that different TRPs can be distinguished by different CORESET groups. In some embodiments, the CORESET group information may include: a CORESET group index.

[0107] The SRS resource set information is used to indicate the SRS resource set. It can be understood that different SRS resource sets are associated with different TRPs, that is, different TRPs transmit different PUSCHs through SRS resources in different SRS resource sets.

[0108] In the embodiment of the present application, the at least one maximum number of transmission layers sent by the network device is based on the included maximum number of transmission layers and may include at least one of the following scenarios:

[0109] Scenario 1: at least one maximum number of transmission layers includes: the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers;

[0110] Scenario 2: The at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the third maximum number of transmission layers;

[0111] Scenario 3: At least one maximum number of transmission layers includes: the first maximum number of transmission layers and the second maximum number of transmission layers;

[0112] Scenario 4: At least one maximum number of transmission layers includes: the third maximum number of transmission layers.

[0113] In the following scenario, the network device sends a first maximum number of transmission layers, a second maximum number of transmission layers, and a third maximum number of transmission layers to the terminal device, and the terminal device receives the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers.

[0114] The first maximum number of transmission layers is associated with the first space parameter, the second maximum number of transmission layers is associated with the second space parameter, and the third maximum number of transmission layers is the maximum number of transmission layers for single panel / TRP transmission.

[0115] In some embodiments, the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers satisfy at least one of the following:

[0116] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is the same as the third maximum number of transmission layers;

[0117] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers;

[0118] The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are different from each other.

[0119] If the sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers, the sum of the first maximum number of transmission layers and the second maximum number of transmission layers may be greater than, equal to, or less than the third maximum number of transmission layers.

[0120] In some embodiments, the first maximum number of transmission layers is associated with a first spatial parameter of the two different spatial parameters;

[0121] The second maximum number of transmission layers is associated with a second spatial parameter of the two different spatial parameters;

[0122] The third maximum number of transmission layers is associated with the first space parameter, the second space parameter, or the third space parameter.

[0123] After the terminal device receives the first maximum number of transmission layers, the second maximum number of transmission layers and the third maximum number of transmission layers, the first maximum number of transmission layers is associated with the first spatial parameter; the second maximum number of transmission layers is associated with the second spatial parameter; the third maximum number of transmission layers is associated with the third spatial parameter, and the terminal device determines the maximum number of transmission layers corresponding to the PUSCH based on the association between the spatial parameter and the maximum number of transmission layers and the spatial parameter used by a PUSCH.

[0124] In scenario two, the network device configures a maximum number of transmission layers corresponding to the first PUSCH transmission scheme to the terminal device: the first maximum number of transmission layers, and configures the third maximum number of transmission layers corresponding to the second PUSCH transmission scheme. At this time, the terminal device receives the first maximum number of transmission layers and the third maximum number of transmission layers, and determines the second maximum number of transmission layers.

[0125] In some embodiments, the second maximum number of transmission layers is one of the following:

[0126] First default value;

[0127] a difference between the first maximum number of transmission layers and the third maximum number of transmission layers;

[0128] The same as the value of the third maximum number of transmission layers;

[0129] The same as the value of the first maximum number of transmission layers;

[0130] The second default value is subtracted from the value of the first maximum number of transmission layers.

[0131] The first default value is a positive integer; or the first default value is a positive integer and is a multiple of 2 such as 2, 4, etc.

[0132] The second default value may be a positive integer; or a positive integer such as 4, 6, or 8.

[0133] In some embodiments, if the first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, the second PUSCH transmission scheme is associated with a third spatial parameter, the first spatial parameter is associated with the first maximum number of transmission layers, and the second spatial parameter is the same as the third spatial parameter, then the value of the second maximum number of transmission layers is the same as the value of the third maximum number of transmission layers.

[0134] Here, the spatial parameter of the maximum transmission parameter that is not associated in the first PUSCH transmission scheme is the second spatial parameter. When the second spatial parameter is the same as the third spatial parameter associated with the second PUSCH transmission scheme, the value of the second maximum number of transmission layers is the same as the value of the third maximum number of transmission layers.

[0135] In scenario three, the network device configures two maximum transmission layer numbers corresponding to the first PUSCH transmission scheme to the terminal device: the first maximum transmission layer number and the second maximum transmission layer number. At this time, the terminal device receives the first maximum transmission layer number and the second maximum transmission layer number, and determines the third maximum transmission layer number.

[0136] In some embodiments, the third maximum number of transmission layers is one of the following:

[0137] Third default value;

[0138] the sum of the first maximum number of transmission layers and the second maximum number of transmission layers;

[0139] The same as the first maximum number of transmission layers;

[0140] The same as the second maximum number of transmission layers.

[0141] The third default value is a positive integer; or the third default value is a positive integer and is a multiple of 2 such as 2, 4, etc.

[0142] In scenario four, the network device configures the third maximum number of transmission layers corresponding to the second PUSCH transmission scheme to the terminal device. At this time, the terminal device receives the third maximum number of transmission layers and determines the first maximum number of transmission layers and the second maximum number of transmission layers.

[0143] In some embodiments, the first maximum number of transmission layers is a fourth default value or is the same as the value of the third maximum number of transmission layers.

[0144] In some embodiments, the second maximum number of transmission layers is a fifth default value or is the same as the value of the third maximum number of transmission layers.

[0145] In the embodiment of the present application, one or both of the first maximum number of transmission layers and the second maximum number of transmission layers may be the same as the value of the third maximum number of transmission layers.

[0146] For the above scenario three or scenario four, if the third space parameter is the same as the first space parameter or the second space parameter, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers or the second maximum number of transmission layers.

[0147] For scenario three, if the third space parameter is the same as the first space parameter or the second space parameter, the terminal device determines the third maximum number of transmission layers based on the first maximum number of transmission layers or the second maximum number of transmission layers.

[0148] For scenario four, if the third space parameter is the same as the first space parameter or the second space parameter, the terminal device determines the first maximum number of transmission layers or the second maximum number of transmission layers based on the third maximum number of transmission layers.

[0149] In some embodiments, at least one of the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers is a multiple of 2.

[0150] In the embodiment of the present application, the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are positive integers.

[0151] In one example, the first maximum number of transmission layers is 2, the second maximum number of transmission layers is 2, and the third maximum number of transmission layers is 4. In one example, the first maximum number of transmission layers is 1, the second maximum number of transmission layers is 1, and the third maximum number of transmission layers is 4. In one example, the first maximum number of transmission layers is 1, the second maximum number of transmission layers is 2, and the third maximum number of transmission layers is 4. In one example, the first maximum number of transmission layers is 4, the second maximum number of transmission layers is 2, and the third maximum number of transmission layers is 4.

[0152] In an embodiment of the present application, at least one of the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers is a multiple of 2, which can match the configuration of the dual-polarized antenna, thereby improving the applicability of the maximum number of transmission layers.

[0153] In some embodiments, the terminal device receives at least one maximum number of transmission layers sent by the network device, including:

[0154] The terminal device receives a first parameter sent by the network device, where the first parameter includes the at least one maximum number of transmission layers.

[0155] At this point, the network device sends at least one maximum transmission layer number to the terminal device, including:

[0156] The network device sends a first parameter to the terminal device, where the first parameter includes the at least one maximum number of transmission layers.

[0157] The network device may send one or more first parameters, wherein the one or more first parameters include the at least one maximum number of transmission layers. The first parameter may be a high-layer parameter.

[0158] In some embodiments, if the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, the first parameter includes at least one of the following:

[0159] SRS resource set configuration parameters;

[0160] PUSCH configuration parameters (PUSCH-Config);

[0161] PUSCH serving cell configuration parameters.

[0162] The SRS resource set configuration parameter may be identified as SRS-ResourceSet.

[0163] The PUSCH configuration parameter may be identified as PUSCH-Config, and the PUSCH serving cell configuration parameter may be identified as PUSCH-ServingCellConfig.

[0164] Here, the first maximum number of transmission layers and the second maximum number of transmission layers are configured in the higher-layer parameters SRS-ResourceSet, PUSCH-Config, and PUSCH-ServingCellConfig.

[0165] In some embodiments, wherein the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, and the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers, the first parameter includes at least one of the following: PUSCH configuration parameter; PUSCH service cell configuration parameter.

[0166] In an embodiment of the present application, the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers. To determine the third maximum number of transmission layers corresponding to the second PUSCH transmission scheme, it is necessary to read the first maximum number of transmission layers and the second maximum number of transmission layers of the first PUSCH transmission scheme. If the first maximum number of transmission layers and the second maximum number of transmission layers are configured in the high-level parameters PUSCH-Config and PUSCH-ServingCellConfig, the terminal device avoids configuring the SRS resource set parameters involving specific spatial parameters when determining the third maximum number of transmission layers.

[0167] In some embodiments, the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, and the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers, and the first parameter includes at least one of the following: PUSCH configuration parameter; PUSCH service cell configuration parameter.

[0168] The third maximum number of transmission layers is configured in the PUSCH-Config and PUSCH-ServingCellConfig higher-level parameters.

[0169] In some embodiments, the first maximum number of transmission layers is used to determine first information, where the first information is transmission information associated with a first transmission parameter, where the first transmission parameter is a transmission parameter for indicating transmission of a first PUSCH in the first PUSCH transmission scheme;

[0170] The second maximum number of transmission layers is used to determine second information, where the second information is transmission information associated with a second transmission parameter, where the second transmission parameter is a transmission parameter for indicating transmission of a second PUSCH in the first PUSCH transmission scheme, and the first PUSCH and the second PUSCH overlap in the time domain;

[0171] The third maximum number of transmission layers is used to determine third information, where the third information is transmission information associated with a third transmission parameter, and the third transmission parameter is a transmission parameter used to indicate transmission of a third PUSCH in the second PUSCH transmission scheme.

[0172] In the embodiment of the present application, the first maximum number of transmission layers is used to determine the first information, the second maximum number of transmission layers is used to determine the second information, and the third maximum number of transmission layers is used to determine the third information. Based on the first maximum number of transmission layers and the second maximum number of transmission layers being used for a transmission scheme, and the third maximum number of transmission layers being used for another transmission scheme, the terminal device may determine the first information and the second information based on the first maximum number of transmission layers and the second maximum number of transmission layers, respectively, or the terminal device may determine the third information based on the third maximum number of transmission layers.

[0173] The first information, the second information, and the third information are transmission information associated with transmission parameters of different channels.

[0174] In some embodiments, the transmission information includes at least one of the following: the number of bits of the information field used to carry the corresponding transmission parameter; and the range set to which the corresponding transmission parameter belongs.

[0175] Here, the range set to which the transmission parameter belongs can be understood as the transmission parameter corresponding to different tables, and the range of the transmission parameter is different in different tables.

[0176] In some embodiments, the transmission parameter includes at least one of the following:

[0177] An indication of the association between TPMI, SRI, Phase-tracking reference signals (PTRS), and Demodulation Reference Signal (DMRS).

[0178] Corresponding to a PUSCH, the maximum number of transmission layers corresponding to the PUSCH is used to determine the number of bits in the information field carrying the transmission parameters of the PUSCH.

[0179] In one example, for a first PUSCH, the number of bits in an information field carrying one or more of the following first transmission parameters of the first PUSCH is determined based on a first maximum number of transmission layers: a first TPMI, a first SRI, a first PTRS, and an indication of the association with the first DMRS. In one example, for a second PUSCH, the number of bits in an information field carrying one or more of the following second transmission parameters of the second PUSCH is determined based on a second maximum number of transmission layers: a second TPMI, a second SRI, a second PTRS, and an indication of the association with the second DMRS. In one example, for a third PUSCH, the number of bits in an information field carrying one or more of the following third transmission parameters of the third PUSCH is determined based on a third maximum number of transmission layers: a third TPMI, a third SRI, a third PTRS, and an indication of the association with the third DMRS.

[0180] In some embodiments, the transmission parameters further include an SRS resource set, wherein the third SRS resource set in the third transmission parameter is different from the first SRS resource set in the first transmission parameter and the second SRS resource set in the second transmission parameter.

[0181] In the embodiment of the present application, the transmission mode of the PUSCH in the first PUSCH, the second PUSCH and the third PUSCH can be codebook-based transmission or non-codebook-based transmission, wherein the transmission mode of the first PUSCH and the second PUSCH is the same.

[0182] If the corresponding PUSCH transmission is codebook-based transmission, the transmission parameter includes at least one of the following: TPMI, and an indication of association between PTRS and DMRS.

[0183] The TPMI is used to indicate precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the TPMI is less than the corresponding maximum number of transmission layers.

[0184] For the first PUSCH, if the first PUSCH is codebook-based transmission, the first TPMI is used to indicate precoding information and the number of transmission layers of the first PUSCH, and the number of transmission layers indicated by the first TPMI is less than or equal to the first maximum number of transmission layers.

[0185] For the second PUSCH, if the second PUSCH is codebook-based transmission, the second TPMI is used to indicate precoding information and the number of transmission layers of the second PUSCH, and the number of transmission layers indicated by the second TPMI is less than or equal to the second maximum number of transmission layers.

[0186] For the third PUSCH, if the third PUSCH is codebook-based transmission, the third TPMI is used to indicate precoding information and the number of transmission layers of the third PUSCH, and the number of transmission layers indicated by the third TPMI is less than or equal to the third maximum number of transmission layers.

[0187] In some embodiments, for codebook-based PUSCH transmission, the number of maximum ports of SRS resources in the third SRS resource set is less than or equal to the sum of the first maximum transmission layer and the second maximum transmission layer.

[0188] When the third transmission parameter includes a third SRI, the SRS resources indicated by the third SRI belong to a third SRS resource set.

[0189] If the corresponding PUSCH transmission is non-codebook based transmission, the transmission parameter includes at least one of the following: SRI, an indication of association between PTRS and DMRS.

[0190] The SRI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the SRI is less than or equal to the corresponding maximum number of transmission layers.

[0191] For the first PUSCH, if the first PUSCH is non-codebook based transmission, the first SRI is used to indicate precoding information and the number of transmission layers of the first PUSCH, and the number of transmission layers indicated by the first TPMI is less than or equal to the first maximum number of transmission layers.

[0192] For the second PUSCH, if the second PUSCH is non-codebook based transmission, the second SRI is used to indicate the precoding information and the number of transmission layers of the second PUSCH, and the number of transmission layers indicated by the second TPMI is less than or equal to the second maximum number of transmission layers.

[0193] For the third PUSCH, if the second PUSCH is non-codebook based transmission, the third SRI is used to indicate the precoding information and number of transmission layers of the third PUSCH, and the number of transmission layers indicated by the third TPMI is less than or equal to the third maximum number of transmission layers.

[0194] When the corresponding PUSCH belongs to non-codebook based PUSCH transmission, the number of SRS resources indicated by the SRS is less than or equal to the sum of the first maximum number of transmission layers and the second maximum number of transmission layers.

[0195] In some embodiments, the terminal device further implements the following processing: if the PUSCH transmission scheme is the first PUSCH transmission scheme, the terminal device determines the first information according to the first maximum transmission layer, and determines the second information according to the second maximum transmission layer.

[0196] In some embodiments, the terminal device further implements the following processing: if the PUSCH transmission scheme is the second PUSCH transmission scheme, the terminal device determines the third information according to the third maximum transmission layer.

[0197] In some embodiments, the terminal device further implements the following processing: the terminal device receives first signaling sent by the network device, where the first signaling is used to indicate the type of the PUSCH transmission scheme.

[0198] At this time, the network device also performs the following processing: the network device sends a first signaling to the terminal device, where the first signaling is used to indicate the type of the PUSCH transmission scheme.

[0199] The type of the PUSCH transmission scheme is based on a first signaling indication sent by the network device.

[0200] In some embodiments, the first signaling includes at least one of the following:

[0201] Downlink control information DCI;

[0202] Radio Resource Control (RRC) signaling;

[0203] Media Access Control (MAC) signaling.

[0204] In some embodiments, if the first signaling is DCI, the SRS resource set indication field carried in the DCI is used to indicate the type of the PUSCH transmission scheme.

[0205] In the case where the first signaling is DCI, the terminal device determines the type of PUSCH transmission scheme based on the SRS resource indication field carried in the first DCI.

[0206] In some embodiments, if the value of the SRS resource set indication field is a first value, the first value indicates two SRS resource sets, and the PUSCH transmission scheme is a first PUSCH transmission scheme; and / or,

[0207] If the value of the SRS resource set indication field is a second value, the second value indicates an SRS resource set, and the PUSCH transmission scheme is a second PUSCH transmission scheme.

[0208] The first value may include values ​​such as 10 and 11 indicating two SRS resource sets. When the SRS resource set indication field indicates two SRS resource sets, it is determined that the PUSCH transmission scheme needs to use two SRS resource sets, and the current PUSCH transmission scheme is determined to be the first PUSCH transmission scheme.

[0209] It can be understood that the first value may also indicate the usage order of the two SRS resource sets.

[0210] The second value may include 00, 01, etc., indicating a SRS resource set. When the SRS resource set indication field indicates an SRS resource set, it is determined that the PUSCH transmission scheme needs to use an SRS resource set, and the current PUSCH transmission scheme is determined to be the second PUSCH transmission scheme.

[0211] In some embodiments, if the value of the SRS resource set indication field is a first value, the value of the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers.

[0212] If the value of the SRS resource set indication field is the second value, the second value indicates the first SRS resource set and the second SRS resource set, the PUSCH transmission scheme is another case of the second PUSCH transmission scheme, and the first transmission parameter and the second transmission parameter are used for the transmission of the PUSCH at the same time.

[0213] In some embodiments, if the second value indicates a first SRS resource set associated with the first maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers; and / or,

[0214] If the second value indicates the second SRS resource set associated with the second maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the second maximum number of transmission layers.

[0215] In one example, the second value may include 00, 01, etc., indicating a value of an SRS resource set, and if the second value is 00, it indicates the first SRS resource set, and the first SRS resource is associated with the first maximum number of transmission layers; if the second value is 01, it indicates the second SRS resource set, and the second SRS resource set is associated with the second maximum number of transmission layers.

[0216] When the second value indicates the first SRS resource set, the third PUSCH transmitted by the second PUSCH transmission scheme is associated with the first SRS resource set. At this time, the SRS resource sets of the first PUSCH and the third PUSCH are the same, and the maximum number of transmission layers of the first PUSCH and the third PUSCH are also the same.

[0217] When the second value indicates the second SRS resource set, the third PUSCH transmitted by the second PUSCH transmission scheme is associated with the second SRS resource set. At this time, the SRS resource sets of the second PUSCH and the third PUSCH are the same, and the maximum number of transmission layers of the second PUSCH and the third PUSCH are also the same.

[0218] At this time, the terminal device receives two first parameters, which respectively include the first maximum number of transmission layers and the second maximum number of transmission layers. The two first parameters are corresponding SRS resource set configuration parameters. For specific configuration, please refer to RRC Configuration 3.

[0219] An embodiment of the present application provides a wireless communication method, as shown in FIG8 , in which a first PUSCH and a second PUSCH transmitted by the first PUSCH transmission scheme are respectively scheduled by a first DCI and a second DCI, and the first PUSCH and the second PUSCH overlap in the time domain, including:

[0220] S801. If the power of the first PUSCH and the power of the second PUSCH exceed the maximum power requirement, the terminal device transmits the first PUSCH and / or the second PUSCH according to the priority order of power control.

[0221] It should be noted that the wireless communication method shown in FIG. 8 may be independent of the wireless communication method shown in FIG. 2 , FIG. 3 or FIG. 4 , or may be implemented together with the wireless communication method shown in FIG. 2 , FIG. 3 or FIG. 4 .

[0222] In the wireless communication method provided in the embodiment of the present application, the situation where the first PUSCH and the second PUSCH overlap in the time domain includes but is not limited to the overlap shown in Figure 7.

[0223] The power of the first PUSCH and the power of the second PUSCH refer to the power required for transmitting the first PUSCH, not the power actually transmitted.

[0224] When the power of the first PUSCH and the power of the second PUSCH exceed the maximum power requirement, the terminal device adjusts the power of the first PUSCH and the second PUSCH according to the power control priority pair to obtain the adjusted actual power, and transmits the first PUSCH and the second PUSCH based on the adjusted actual power. The priority order of the power control includes the power allocation priority order between the first PUSCH and the second PUSCH.

[0225] Here, the terminal device may reduce the power of the first PUSCH or the second PUSCH, and transmit the corresponding PUSCH based on the reduced power.

[0226] In one example, the terminal device may reduce the power of the first PUSCH. In this case, the terminal device transmits the first PUSCH based on the reduced power of the first PUSCH and transmits the second PUSCH based on the power of the second PUSCH.

[0227] In one example, the terminal device may reduce the power of the second PUSCH. In this case, the terminal device transmits the second PUSCH based on the reduced power of the second PUSCH and transmits the first PUSCH based on the power of the first PUSCH.

[0228] It is understandable that if the power control priority is: the first PUSCH is higher than the second PUSCH, the terminal device reduces the power of the second PUSCH. If the power control priority is: the second PUSCH is higher than the first PUSCH, the terminal device reduces the power of the first PUSCH.

[0229] In some embodiments, the terminal device determines a priority order for power control based on reception times of the first DCI and the second DCI.

[0230] In some examples, the power control priority order is based on at least one of the following:

[0231] Factor 1: a relationship between a first time interval and a first duration, where the first time interval is the time interval between a reception time of a third DCI and a transmission time of a third PUSCH, the third DCI being the DCI received later than the first DCI and the second DCI, and the third PUSCH being the PUSCH transmitted earlier than the first PUSCH and the second PUSCH;

[0232] Factor 2: priorities of the first PUSCH and the second PUSCH.

[0233] Factor 1 represents the time interval between the later-received DCI and the first-sent PUSCH in the first DCI and the second DCI, that is, the relationship between the first time interval and the set first duration. When the first time interval is greater than or equal to the first duration, it represents that the terminal device has sufficient time to process any one of the first PUSCH and the second PUSCH. When the first time interval is less than the first duration, it represents that there is insufficient time left for the terminal device to process the first-sent PUSCH. At this time, the terminal device can only reduce the power of the later-sent PUSCH.

[0234] In some embodiments, the first time interval is a time interval between the third DC and a first symbol of the third PUSCH.

[0235] The priority of the first PUSCH and the second PUSCH in factor 2 may be determined based on one of the following:

[0236] The priority index of the first PUSCH is the first priority index, and the priority index of the second PUSCH is the second priority index;

[0237] The priority of the content carried by the first PUSCH and the second PUSCH.

[0238] In some embodiments, the priority of the first PUSCH and the second PUSCH is determined based on the first priority index and the second priority index. When the priority represented by the first priority index is higher than the priority of the second PUSCH, the priority of the first PUSCH is higher than the priority of the second PUSCH.

[0239] In some embodiments, the priority of the first PUSCH and the second PUSCH is based on the priority of the content carried by the first PUSCH and the second PUSCH.

[0240] The PUSCH can carry one of the following: Hybrid Automatic Repeat request Acknowledgement (HARQ-ACK) and Channel State Information (CSI). In this case, the priority of HARQ-ACK may be higher than the priority of CSI.

[0241] In an example, the first PUSCH carries HARQ-ACK and the second PUSCH carries CSI, and the priority of the first PUSCH is higher than the priority of the second PUSCH.

[0242] In some embodiments, the priorities of the first PUSCH and the second PUSCH are determined based on the first priority index and the second priority index, and the priorities of the contents carried by the first PUSCH and the second PUSCH.

[0243] Here, when the first priority index and the second priority index are the same, the priorities of the first PUSCH and the second PUSCH may be determined based on the priorities of the contents carried by the first PUSCH and the second PUSCH.

[0244] In an embodiment of the present application, the terminal device can determine the power allocation priority order of the first PUSCH and the second PUSCH based on factor one, and can also determine the power allocation priority order of the first PUSCH and the second PUSCH based on factor two, or can determine the power allocation priority order of the first PUSCH and the second PUSCH based on factor one and factor two.

[0245] In some embodiments, if the first time interval is greater than or equal to the first duration, the priority order of the power control is that the first PUSCH is greater than the second PUSCH, or the second PUSCH or the first PUSCH; or,

[0246] If the first time interval is less than the first duration, the priority of the power control is that the fourth PUSCH is greater than the third PUSCH, and the fourth PUSCH is another one of the first PUSCH and the second PUSCH other than the third PUSCH.

[0247] At this time, the terminal device determines the power allocation priority order of the first PUSCH and the second PUSCH based on factor one.

[0248] In some embodiments, if the first time interval is greater than or equal to the first duration, and the priority of the first PUSCH is greater than the priority order of the second PUSCH, then the priority order of the power control is that the first PUSCH is greater than the second PUSCH; or,

[0249] If the first time interval is greater than or equal to the first duration, and the priority of the second PUSCH is greater than the priority order of the first PUSCH, the priority order of the power control is that the second PUSCH is greater than the first PUSCH.

[0250] At this time, the terminal device determines the power allocation priority order of the first PUSCH and the second PUSCH based on factor one and factor two.

[0251] It can be understood that if the first time interval is greater than or equal to the first duration and the priority of the first PUSCH is greater than the priority of the second PUSCH, then the priority order of the power control is that the first PUSCH is greater than the second PUSCH; if the first time interval is greater than or equal to the first duration and the priority of the first PUSCH is less than the priority order of the second PUSCH, then the priority order of the power control is that the second PUSCH is greater than the first PUSCH; if the first time interval is less than the first duration, then the priority of the power control is that the fourth PUSCH is greater than the third PUSCH, and the fourth PUSCH is the PUSCH sent later between the first PUSCH and the second PUSCH.

[0252] The wireless communication method provided in an embodiment of the present application adjusts the power of the first PUSCH and the second PUSCH based on the reception time of the first DCI and the second DCI that schedule the first PUSCH and the second PUSCH and the transmission time of the first PUSCH and the second PUSCH when transmitting the first PUSCH and the second PUSCH, so that the actual transmission power of the adjusted first PUSCH and the second PUSCH meets the maximum power requirement. Adjusting the power of the first PUSCH and the second PUSCH based on the reception time of the first DCI and the second DCI takes into account the processing time and processing capability of the terminal device, and ensures that the actual transmission power of the terminal device meets the maximum power requirement while meeting the terminal device's capability.

[0253] Below, the wireless communication method provided in the embodiment of the present application is further described by taking the association between the maximum transmission parameter and the SRS resource set in the spatial parameter as an example.

[0254] The wireless communication method provided in the embodiments of the present application can be implemented as but not limited to the following embodiments.

[0255] Embodiment 1: The network device configures the maximum number of transmission layers corresponding to two SRS resource sets and the maximum number of transmission layers during single TRP transmission.

[0256] The terminal device receives the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers configured by the network device.

[0257] The first maximum number of transmission layers and the second maximum number of transmission layers are the maximum number of transmission layers configured for the SDM scheme of multi-panel simultaneous transmission or the two SRS resource sets of the SFN scheme respectively, and the third maximum number of transmission layers is the maximum number of transmission layers configured separately for single panel / TRP transmission.

[0258] In some embodiments, the first maximum number of transmission layers is associated with a first spatial parameter, the second maximum number of transmission layers is associated with a second spatial parameter, and the third maximum number of transmission layers is the maximum number of transmission layers for single panel / TRP transmission.

[0259] The first spatial parameter is the spatial parameter associated with the first SRS resource set of the SDM scheme, and the second spatial parameter is the spatial parameter associated with the second SRS resource set of the SDM scheme. The spatial parameter includes at least one of the following: TCI status information, antenna panel information, control resource set CORESET group information (coresetPoolIndex), sounding reference signal resource set information (SRS resource set), and beam information.

[0260] The first and second maximum transmission layers are used for multi-panel simultaneous interpretation, while the third maximum transmission layer is used for single-panel / TRP transmission.

[0261] In some embodiments, the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers satisfy at least one of the following:

[0262] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is equal to the third maximum number of transmission layers;

[0263] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers, that is, the sum of the first maximum number of transmission layers and the second maximum number of transmission layers may be greater than, equal to, or less than the third maximum number of transmission layers;

[0264] The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers may be different from each other;

[0265] The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are respectively integer multiples of 2. In one example, the first maximum number of transmission layers is 2, the second maximum number of transmission layers is 2, and the third maximum number of transmission layers is 4; or, the first maximum number of transmission layers is 1, the second maximum number of transmission layers is 1, and the third maximum number of transmission layers is 4; or, the first maximum number of transmission layers is 1, the second maximum number of transmission layers is 2, and the third maximum number of transmission layers is 4; or, the first maximum number of transmission layers is 4, the second maximum number of transmission layers is 2, and the third maximum number of transmission layers is 4.

[0266] In the embodiment of the present application, the PUSCH transmission scheme is determined according to the first information.

[0267] If the first information indicates that the PUSCH transmission scheme is single panel / TRP transmission or TDM transmission

[0268] The terminal device determines information associated with a third transmission parameter based on the third maximum number of transmission layers. The determined third transmission parameter includes at least one of the following: TPMI, SRI, PTRS, and an indication of a Demodulation Reference Signal (DMRS) association. The information associated with the third transmission parameter includes at least one of the following: the number of bits in the information field used to carry the third transmission parameter, and a range set to which the third transmission parameter belongs (corresponding to the TPMI table in the protocol).

[0269] For codebook-based PUSCH transmission, the third transmission parameter includes: TPMI, PTRS and DMRS association indication; for non-codebook-based PUSCH transmission, the transmission parameter includes: SRI, PTRS and DMRS association indication.

[0270] The third maximum number of transmission layers supported by the third TPMI domain is less than or equal to the third maximum number of transmission layers.

[0271] If the first information indicates that the PUSCH transmission scheme is an SDM transmission scheme or an SFN transmission scheme

[0272] The terminal device determines information associated with a first transmission parameter based on a first maximum number of transmission layers, and determines information associated with a second transmission parameter based on a second maximum number of transmission layers. The determined first transmission parameter includes at least one of the following: TPMI, SRI, an indication of PTRS and DMRS association, etc. The information associated with the first transmission parameter includes at least one of the following: the number of bits in the information field used to carry the first transmission parameter, and the set of ranges to which the first transmission parameter belongs (the corresponding TPMI table in the protocol). The determined second transmission parameter includes at least one of the following: TPMI, SRI, an indication of PTRS and DMRS association, etc. The information associated with the second transmission parameter includes at least one of the following: the number of bits in the information field used to carry the second transmission parameter, and the set of ranges to which the second transmission parameter belongs (the corresponding TPMI table in the protocol).

[0273] The range set may represent the range of values ​​of the third transmission parameter. Different maximum numbers of transmission layers correspond to different tables, wherein the value ranges in different tables are different.

[0274] In one example, the maximum number of transmission layers is 2, and the corresponding TPMI bit number is 4 bits (the codebook subset for PUSCH transmission is configured as a non-coherent codebook), or 5 bits (the codebook subset for PUSCH transmission is configured as a partially coherent or non-coherent codebook). The range set is shown in Table 1. In Table 1, for different numbers of transmission layers, the corresponding TPMI values ​​are different.

[0275] Table 1. Range collection example 1

[0276]

[0277]

[0278] In one example, the maximum number of transmission layers is 3 or 4, and the corresponding TPMI bit number is 4 bits (the codebook subset for PUSCH transmission is configured as a non-coherent codebook) or 6 bits (the codebook subset for PUSCH transmission is configured as a partially coherent or non-coherent codebook). The range set is shown in Table 2. In Table 2, for different numbers of transmission layers, the corresponding TPMI values ​​are different.

[0279] Table 2. Range collection example 2

[0280]

[0281]

[0282] In one example, for non-codebook-based PUSCH transmission, when the maximum number of transmission layers is 11, when the number of SRS resources in the SRS resource set is 2, the number of SRI bits is 1 bit; when the number of SRS resources is 3, the number of SRI bits is 2 bits; and when the number of SRS resources is 4, the number of SRI bits is 2 bits. The range set is shown in Table 3.

[0283] Table 3. Range collection example 3

[0284]

[0285] The range sets in the embodiments of the present application include but are not limited to the range sets shown in Table 1, Table 2 and Table 3.

[0286] For codebook-based PUSCH transmission, the first transmission parameter and / or the second transmission parameter include TPMI, PTRS and DMRS association indication; for non-codebook-based PUSCH transmission, the first transmission parameter and / or the second transmission parameter include SRI, PTRS and DMRS association indication.

[0287] The first transmission parameter is associated with the first spatial parameter, and the second transmission parameter is associated with the second spatial parameter.

[0288] The terminal device determines the number of bits of the first TPMI field according to the first maximum number of transmission layers, and the number of transmission layers indicated by the first TPMI field is less than or equal to the first maximum number of transmission layers; and determines the number of bits of the second TPMI field according to the second maximum number of transmission layers, and the number of transmission layers indicated by the second TPMI field is less than or equal to the second maximum number of transmission layers.

[0289] The first information may include an SRS resource set indicator field or a set information field in the DCI signaling. The first information may also be higher layer signaling, such as RRC signaling or MAC signaling.

[0290] Taking the first information as the SRS resource set indicator as an example, if the SRS resource set indicator is 00 or 01 indicating one SRS resource set, the third transmission parameter is determined according to the third maximum number of transmission layers; if the SRS resource set indicator is 10 or 11 indicating two SRS resource sets, the first transmission parameter is determined according to the first maximum number of transmission layers and the second transmission parameter is determined according to the second maximum number of transmission layers.

[0291] In some embodiments, one of the first maximum number of transmission layers and the second maximum number of transmission layers and the third maximum number of transmission layers are associated with the same SRS resource set, and the other of the first maximum number of transmission layers and the second maximum number of transmission layers is associated with another SRS resource set.

[0292] It is understandable that the terminal device supports the transmission solution of multi-panel simultaneous interpretation, and the network device configures two SRS resource sets for the terminal device.

[0293] In some embodiments, the first maximum number of transmission layers and the second maximum number of transmission layers are configured in high-level parameters such as SRS-ResourceSet, PUSCH-Config, and PUSCH-ServingCellConfig, and the third maximum number of transmission layers is configured in high-level parameters such as PUSCH-Config and PUSCH-ServingCellConfig.

[0294] In some embodiments, the number of SRS resources included in the first SRS resource set and the number of SRS resources included in the second SRS resource set may be the same as or different from each other.

[0295] For non-codebook transmission, the number of SRS ports of the SRS resource indicated by the SRI in the first transmission parameter and the number of SRS ports of the SRS resource indicated by the SRI in the second transmission parameter may be the same as or different from each other.

[0296] In one example, possible RRC configuration 1 is as follows:

[0297]

[0298] Among them, X1 is the first maximum number of transmission layers.

[0299] In one example, possible RRC configuration 2 is as follows:

[0300]

[0301] Among them, X2 is the second maximum number of transmission layers.

[0302] In one example, possible RRC configuration 3 is as follows:

[0303]

[0304] Wherein, X1 is the first maximum number of transmission layers, and X2 is the second maximum number of transmission layers.

[0305] In one example, possible RRC configuration 4 is as follows:

[0306]

[0307] Wherein, X1 is the first maximum number of transmission layers, and X2 is the second maximum number of transmission layers.

[0308] The RRC configurations in the embodiments of the present application include but are not limited to the above-mentioned RRC configuration 1, RRC configuration 2 and RRC configuration 3.

[0309] In the above-mentioned embodiment 1 provided in the embodiments of the present application, the network device directly configures the first maximum number of transmission layers, the second maximum number of transmission layers and the third maximum number of transmission layers to the terminal device. For different PUSCH transmission schemes (i.e., multi-panel simultaneous transmission (first PUSCH transmission scheme) or single panel / TRP transmission (second PUSCH transmission scheme)), the corresponding maximum number of transmission layers can be used, which makes the terminal implementation simpler.

[0310] Embodiment 2: Network device configuration configures the maximum number of transmission layers during single TRP transmission and the maximum number of transmission layers corresponding to one SRS resource set.

[0311] The terminal device receives the first maximum number of transmission layers and the third maximum number of transmission layers configured by the network device.

[0312] In one possible implementation, the second maximum number of transmission layers is a default value (eg, 2).

[0313] In a possible implementation manner, the second maximum number of transmission layers is a difference between the first maximum number of transmission layers and the third maximum number of transmission layers.

[0314] In a possible implementation manner, the second maximum number of transmission layers is the same as the third maximum number of transmission layers.

[0315] In a possible implementation manner, the second maximum number of transmission layers is the same as the first maximum number of transmission layers.

[0316] In a possible implementation manner, the second maximum number of transmission layers is equal to 4 minus the first maximum number of transmission layers.

[0317] In the embodiment of the present application, the PUSCH transmission scheme is determined according to the first information.

[0318] If the first information indicates that the PUSCH transmission scheme is single panel / TRP transmission or TDM transmission

[0319] The terminal device determines information associated with a third transmission parameter based on the third maximum number of transmission layers. The determined third transmission parameter includes at least one of the following: TPMI, SRI, an indication of PTRS and DMRS association, etc. The information associated with the third transmission parameter includes at least one of the following: the number of bits of an information field used to carry the third transmission parameter, and a range set to which the third transmission parameter belongs (corresponding to a TPMI table in the protocol).

[0320] For codebook-based PUSCH transmission, the third transmission parameter includes: TPMI, PTRS and DMRS association indication; for non-codebook-based PUSCH transmission, the transmission parameter includes: SRI, PTRS and DMRS association indication.

[0321] The third maximum number of transmission layers supported by the third TPMI domain is less than or equal to the third maximum number of transmission layers.

[0322] If the first information indicates that the PUSCH transmission scheme is an SDM transmission scheme or an SFN transmission scheme

[0323] The terminal device determines information associated with a first transmission parameter based on a first maximum number of transmission layers, and determines information associated with a second transmission parameter based on a second maximum number of transmission layers. The determined first transmission parameter includes at least one of the following: TPMI, SRI, an indication of PTRS and DMRS association, etc. The information associated with the first transmission parameter includes at least one of the following: the number of bits in the information field used to carry the first transmission parameter, and the set of ranges to which the first transmission parameter belongs (the corresponding TPMI table in the protocol). The determined second transmission parameter includes at least one of the following: TPMI, SRI, an indication of PTRS and DMRS association, etc. The information associated with the second transmission parameter includes at least one of the following: the number of bits in the information field used to carry the second transmission parameter, and the set of ranges to which the second transmission parameter belongs (the corresponding TPMI table in the protocol).

[0324] For codebook-based PUSCH transmission, the first transmission parameter and / or the second transmission parameter include TPMI, PTRS and DMRS association indication; for non-codebook-based PUSCH transmission, the first transmission parameter and / or the second transmission parameter include SRI, PTRS and DMRS association indication.

[0325] The first transmission parameter is associated with the first spatial parameter, and the second transmission parameter is associated with the second spatial parameter.

[0326] The terminal device determines the number of bits of the first TPMI field based on the first maximum number of transmission layers, where the number of transmission layers indicated by the first TPMI field is less than or equal to the first maximum number of transmission layers; and determines the number of bits of the second TPMI field based on the second maximum number of transmission layers, where the number of transmission layers indicated by the second TPMI field is less than or equal to the second maximum number of transmission layers. In one possible implementation, the number of bits of the first TPMI field and the number of bits of the second TPMI field are the same.

[0327] In one example, the third maximum number of transmission layers is 4, the first maximum number of transmission layers is 2, and the second maximum number of transmission layers is the same as the third maximum number of transmission layers, which is 4. The second TPMI field needs to indicate the precoding matrix and the number of transmission layers with a maximum number of transmission layers of 4, and the first TPMI field only needs to indicate the precoding matrix and the number of transmission layers with a maximum number of transmission layers of 2. The first TPMI field does not need to indicate the number of transmission layers 4, thereby reducing the number of bits in the first TPMI field.

[0328] In the second embodiment provided in the embodiments of the present application, switching occurs between single TRP / Panel transmission (second PUSCH transmission scheme) and multi-panel simultaneous transmission (second PUSCH transmission scheme), and the third maximum number of transmission layers and a maximum number of transmission layers associated with the second PUSCH transmission scheme may be the same value. At this time, the first transmission information or the second transmission information and the third transmission information may be determined based on the maximum number of transmission layers with the same value. Therefore, the number of bits in the information field is the same, and the total number of bits of the DCI containing the information field will not change, which is beneficial to the UE's monitoring of the DCI and reduces the number of blind detections of the UE.

[0329] Example 3: The network device configures the maximum number of transmission layers corresponding to two SRS resource sets. The maximum number of transmission layers during single TRP transmission is the sum of the maximum number of transmission layers corresponding to the two SRS resource sets.

[0330] The terminal device receives the first maximum number of transmission layers and the second maximum number of transmission layers configured by the network device, wherein the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers.

[0331] In one possible implementation, the first and second maximum numbers of transmission layers are configured in the PUSCH-Config and PUSCH-ServingCellConfig high-level parameters. Because information on two maximum numbers of transmission layers is required for single TRP / Panel transmission, and only one SRS resource set is configured for single TRP / Panel transmission, it cannot be configured in the SRS resource set high-level parameters.

[0332] In the fourth embodiment, the maximum number of transmission layers when the network device configures single TRP transmission, and the maximum number of transmission layers corresponding to the two SRS resource sets are both default values.

[0333] The terminal device receives the third maximum number of transmission layers configured by the network device. The first maximum number of transmission layers and the second maximum number of transmission layers are default values.

[0334] In the second to fourth embodiments provided in the embodiments of the present application, the network device only needs to configure part of the maximum number of transmission layers, which can save signaling.

[0335] Example 5

[0336] When the PUSCHs scheduled by different DCIs in multiple DCIs partially overlap or completely overlap in the time domain, how to perform power control so that the total power of the two panels simultaneously transmits meets the maximum power requirement is a problem to be solved. As shown in Figure 9A, PUSCH1 and PUSCH2 are scheduled by different DCIs, and PUSCH1 and PUSCH2 partially overlap or completely overlap in the time domain. In 901, PUSCH1 and PUSCH2 completely overlap in the time domain and do not overlap in the frequency domain; in 902, PUSCH1 and PUSCH2 are completely overlapped in the time domain and do not overlap in the frequency domain. SCH1 and PUSCH2 completely overlap in the time domain and partially overlap in the frequency domain; in 903, PUSCH1 and PUSCH2 completely overlap in the time domain and completely overlap in the frequency domain; in 904, PUSCH1 and PUSCH2 partially overlap in the time domain and do not overlap in the frequency domain; in 905, PUSCH1 and PUSCH2 partially overlap in the time domain and partially overlap in the frequency domain; in 906, PUSCH1 and PUSCH2 partially overlap in the time domain and completely overlap in the frequency domain.

[0337] In the wireless communication method provided in an embodiment of the present application, if the power of the first PUSCH and the second PUSCH exceeds the maximum power requirement, the terminal device determines the priority of power control according to the reception time of the two DCIs that schedule the two PUSCHs.

[0338] Method 1: The UE first receives the first DCI, and the terminal device determines the time interval between the time of receiving the second DCI and the first symbol of the first PUSCH. If the determined time interval T is greater than or equal to the first processing time, the first PUSCH or the second PUSCH is reduced; conversely, if T is less than the first processing time, the power of the second PUSCH is reduced to meet the maximum power requirement.

[0339] In an example, as shown in FIG9B , DCI1 schedules PUSCH1, DCI2 schedules PUSCH2, and DCI2 is received later. The transmission time of PUSCH1 is earlier than the transmission time of PUSCH2. Then T is the time interval between the reception time of DCI2 and the transmission time of PUSCH1.

[0340] Method 2: The terminal device determines the priority of the first PUSCH and the second PUSCH based on the reception time of the two DCIs that schedule the two PUSCHs.

[0341] Based on the first method, if T is greater than or equal to the first processing time, the power of the PUSCH with the lower priority between the first PUSCH and the second PUSCH is reduced. The order of PUSCH priority from high to low is as follows:

[0342] PUSCH with a larger priority index;

[0343] When two PUSCHs have the same priority, the priority order is:

[0344] PUSCH carrying HARQ-ACK, PUSCH carrying CSI, and PUSCH not carrying HARQ and CSI.

[0345] In some embodiments, the terminal device determines whether to dynamically adjust the power of the first PUSCH and the second PUSCH based on the power control capability of the UE. If the UE reports that it supports power control capability 1, the above-mentioned method 1 or method 2 is implemented. If the UE does not report that it supports power control capability 1, the two panels use a semi-static method to allocate the maximum transmit power.

[0346] The power control capabilities supported by the UE include:

[0347] Power control capability 1. The power between the two panels can be adjusted dynamically;

[0348] Power control capability 2. The power between two panels cannot be adjusted dynamically.

[0349] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0350] It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply a precedence in the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate the first direction of transmission of signals or data from a site to a user equipment in a cell, "uplink" is used to indicate the second direction of transmission of signals or data from a user equipment in a cell to a site, and "sidelink" is used to indicate the third direction of transmission of signals or data from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0351] FIG10 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. As shown in FIG10 , the terminal device 1000 includes:

[0352] The first communication unit 1001 is configured to receive at least one maximum number of transmission layers sent by a network device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers, and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0353] It is understandable that the terminal device further includes: a first storage unit configured to store the received spatial parameters.

[0354] In some embodiments, the first PUSCH transmission scheme is used for transmission of a first physical uplink shared channel PUSCH and a second PUSCH, the first PUSCH and the second PUSCH overlap in the time domain, and the second PUSCH transmission scheme is used for transmission of a third PUSCH.

[0355] In some embodiments, the at least one maximum number of transmission layers includes: the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers.

[0356] In some embodiments, the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers satisfy at least one of the following:

[0357] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is the same as the third maximum number of transmission layers;

[0358] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers;

[0359] The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are different from each other.

[0360] In some embodiments,

[0361] The first maximum number of transmission layers is associated with a first spatial parameter of the two different spatial parameters;

[0362] The second maximum number of transmission layers is associated with a second spatial parameter of the two different spatial parameters;

[0363] The third maximum number of transmission layers is associated with a third spatial parameter associated with the second PUSCH transmission scheme.

[0364] In some embodiments, the at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the third maximum number of transmission layers.

[0365] In some embodiments, the value of the second maximum number of transmission layers is one of the following:

[0366] First default value;

[0367] a difference between the first maximum number of transmission layers and the third maximum number of transmission layers;

[0368] The same as the value of the third maximum number of transmission layers;

[0369] The same as the value of the first maximum number of transmission layers;

[0370] The second default value is subtracted from the value of the first maximum number of transmission layers.

[0371] In some embodiments, the first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, the second PUSCH transmission scheme is associated with a third spatial parameter, the first spatial parameter is associated with the first maximum number of transmission layers, the second spatial parameter is the same as the third spatial parameter, then the value of the second maximum number of transmission layers is the same as the value of the third maximum number of transmission layers.

[0372] In some embodiments, the at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the second maximum number of transmission layers.

[0373] In some embodiments, the third maximum number of transmission layers is one of the following:

[0374] Third default value;

[0375] the sum of the first maximum number of transmission layers and the second maximum number of transmission layers;

[0376] The same as the first maximum number of transmission layers;

[0377] The same as the second maximum number of transmission layers.

[0378] In some embodiments, the at least one maximum number of transmission layers includes: the third maximum number of transmission layers.

[0379] In some embodiments, the first maximum number of transmission layers is a fourth default value or is the same as the value of the third maximum number of transmission layers;

[0380] The second maximum number of transmission layers is a fifth default value or is the same as the value of the third maximum number of transmission layers.

[0381] In some embodiments, the first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, and the second PUSCH transmission scheme is associated with a third spatial parameter. If the third spatial parameter is the same as the first spatial parameter or the second spatial parameter, then the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers or the second maximum number of transmission layers.

[0382] In some embodiments, at least one of the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers is a multiple of 2.

[0383] In some embodiments, the first communication unit 1001 is further configured to receive a first parameter sent by a network device, where the first parameter includes the at least one maximum number of transmission layers.

[0384] In some embodiments, if the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, the first parameter includes at least one of the following:

[0385] SRS resource set configuration parameters;

[0386] PUSCH configuration parameters;

[0387] PUSCH serving cell configuration parameters.

[0388] In some embodiments, the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, and the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers, and the first parameter includes at least one of the following:

[0389] PUSCH configuration parameters;

[0390] PUSCH serving cell configuration parameters.

[0391] In some embodiments, if the at least one maximum number of transmission layers includes the third maximum number of transmission layers, the first parameter includes at least one of the following:

[0392] PUSCH configuration parameters;

[0393] PUSCH serving cell configuration parameters.

[0394] In some embodiments, the first maximum number of transmission layers is used to determine first information, where the first information is transmission information associated with a first transmission parameter, where the first transmission parameter is a transmission parameter for indicating transmission of a first PUSCH in the first PUSCH transmission scheme;

[0395] The second maximum number of transmission layers is used to determine second information, where the second information is transmission information associated with a second transmission parameter, where the second transmission parameter is a transmission parameter for indicating transmission of a second PUSCH in the first PUSCH transmission scheme, and the first PUSCH and the second PUSCH overlap in the time domain;

[0396] The third maximum number of transmission layers is used to determine third information, where the third information is transmission information associated with a third transmission parameter, and the third transmission parameter is a transmission parameter used to indicate transmission of a third PUSCH in the second PUSCH transmission scheme.

[0397] In some embodiments, the transmission information includes at least one of the following:

[0398] The number of bits in the information field used to carry the corresponding transmission parameters;

[0399] The range set to which the corresponding transmission parameter belongs.

[0400] In some embodiments, the transmission parameter includes at least one of the following:

[0401] The wideband precoding matrix indicator TPMI, the SRS resource indicator SRI, the phase tracking reference signal PTRS and the demodulation reference signal DMRS are associated with each other.

[0402] In some embodiments, if the corresponding PUSCH transmission is codebook-based transmission, the transmission parameter includes at least one of the following: TPMI, and an indication of association between PTRS and DMRS.

[0403] In some embodiments, the TPMI is used to indicate precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the TPMI is less than or equal to the corresponding maximum number of transmission layers.

[0404] In some embodiments, if the corresponding PUSCH transmission is non-codebook transmission, the transmission parameter includes at least one of the following: SRI, PTRS and DMRS association indication.

[0405] In some embodiments, the SRI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the SRI is less than or equal to the corresponding maximum number of transmission layers.

[0406] In some embodiments, the terminal device 1000 further includes: a first determination unit configured to determine the first information according to the first maximum transmission layer if the PUSCH transmission scheme is the first PUSCH transmission scheme, and determine the second information according to the second maximum transmission layer.

[0407] In some embodiments, the terminal device 1000 further includes: a second determination unit configured to determine the third information according to the third maximum transmission layer if the PUSCH transmission scheme is the second PUSCH transmission scheme.

[0408] In some embodiments, the first communication unit 1001 is further configured to receive first signaling sent by the network device, where the first signaling is used to indicate the type of the PUSCH transmission scheme.

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

[0410] Downlink control information DCI;

[0411] Radio Resource Control (RRC) signaling;

[0412] Media Access Control (MAC) signaling.

[0413] In some embodiments, if the first signaling is DCI, the SRS resource set indication field carried in the DCI is used to indicate the type of the PUSCH transmission scheme.

[0414] In some embodiments, if the value of the SRS resource set indication field is a first value, the first value indicates two SRS resource sets, and the PUSCH transmission scheme is a first PUSCH transmission scheme; and / or,

[0415] If the value of the SRS resource set indication field is a second value, the second value indicates an SRS resource set, and the PUSCH transmission scheme is a second PUSCH transmission scheme.

[0416] In some embodiments, if the second value indicates a first SRS resource set associated with the first maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers; and / or,

[0417] If the second value indicates the second SRS resource set associated with the second maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the second maximum number of transmission layers.

[0418] In some embodiments, the spatial parameters include at least one of the following:

[0419] Transmission Configuration Indication TCI status;

[0420] Antenna panel information;

[0421] Control resource set CORESET group information;

[0422] Sounding reference signal SRS resource set information;

[0423] Beam information.

[0424] In some embodiments, the terminal device 1000 also includes: an adjustment unit, configured to, when the first PUSCH and the second PUSCH transmitted by the first PUSCH transmission scheme are respectively scheduled by the first DCI and the second DCI, and the first PUSCH and the second PUSCH overlap in the time domain, if the power of the first PUSCH and the power of the second PUSCH exceed the maximum power requirement, transmit the first PUSCH and / or the second PUSCH according to the priority order of power control, and the priority order of power control includes the power allocation priority order between the first PUSCH and the second PUSCH.

[0425] In some embodiments, the priority order of the power control is based on at least one of the following:

[0426] a relationship between a first time interval and a first duration, where the first time interval is a time interval between a reception time of a third DCI and a transmission time of a third PUSCH, the third DCI being the DCI received later than the first DCI and the second DCI, and the third PUSCH being the PUSCH transmitted earlier than the first PUSCH and the second PUSCH;

[0427] The priorities of the first PUSCH and the second PUSCH.

[0428] In some embodiments,

[0429] If the first time interval is greater than or equal to the first duration, the priority order of the power control is that the first PUSCH is greater than the second PUSCH, or the second PUSCH or the first PUSCH; or,

[0430] If the first time interval is less than the first duration, the priority of the power control is that the fourth PUSCH is greater than the third PUSCH, and the fourth PUSCH is another one of the first PUSCH and the second PUSCH other than the third PUSCH.

[0431] In some embodiments, if the first time interval is greater than or equal to the first duration, and the priority of the first PUSCH is greater than the priority order of the second PUSCH, then the priority order of the power control is that the first PUSCH is greater than the second PUSCH; or,

[0432] If the first time interval is greater than or equal to the first duration, and the priority of the second PUSCH is greater than the priority order of the first PUSCH, the priority order of the power control is that the second PUSCH is greater than the first PUSCH.

[0433] In some embodiments, the conditions for transmitting the first PUSCH and / or the second PUSCH according to the priority order of power control include:

[0434] The power between the first panel and the second panel of the terminal device supports dynamic adjustment, the first panel is used to transmit the first PUSCH, and the second panel is used to transmit the second PUSCH.

[0435] FIG11 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. As shown in FIG11 , the network device 1100 includes:

[0436] The second communication unit 1101 is configured to send at least one maximum number of transmission layers to the terminal device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and where the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

[0437] It is understandable that the network device 1100 may further include a third storage unit configured to store the first information.

[0438] In some embodiments, the first PUSCH transmission scheme is used for transmission of a first physical uplink shared channel PUSCH and a second PUSCH, the first PUSCH and the second PUSCH overlap in the time domain, and the second PUSCH transmission scheme is used for transmission of a third PUSCH.

[0439] In some embodiments, the at least one maximum number of transmission layers includes: the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers.

[0440] In some embodiments, the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers satisfy at least one of the following:

[0441] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is the same as the third maximum number of transmission layers;

[0442] The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers;

[0443] The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are different from each other.

[0444] In some embodiments, the first maximum number of transmission layers is associated with a first spatial parameter of the two different spatial parameters;

[0445] The second maximum number of transmission layers is associated with a second spatial parameter of the two different spatial parameters;

[0446] The third maximum number of transmission layers is associated with a third spatial parameter associated with the second PUSCH transmission scheme.

[0447] In some embodiments, the at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the third maximum number of transmission layers.

[0448] In some embodiments, the value of the second maximum number of transmission layers is one of the following:

[0449] First default value;

[0450] a difference between the first maximum number of transmission layers and the third maximum number of transmission layers;

[0451] The same as the value of the third maximum number of transmission layers;

[0452] The same as the value of the first maximum number of transmission layers;

[0453] The second default value is subtracted from the value of the first maximum number of transmission layers.

[0454] In some embodiments, the first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, the second PUSCH transmission scheme is associated with a third spatial parameter, the first spatial parameter is associated with the first maximum number of transmission layers, the second spatial parameter is the same as the third spatial parameter, then the value of the second maximum number of transmission layers is the same as the value of the third maximum number of transmission layers.

[0455] In some embodiments, the at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the second maximum number of transmission layers.

[0456] In some embodiments, the third maximum number of transmission layers is one of the following:

[0457] Third default value;

[0458] the sum of the first maximum number of transmission layers and the second maximum number of transmission layers;

[0459] The same as the first maximum number of transmission layers;

[0460] The same as the second maximum number of transmission layers.

[0461] In some embodiments, the at least one maximum number of transmission layers includes: the third maximum number of transmission layers.

[0462] In some embodiments, the first maximum number of transmission layers is a fourth default value or is the same as the value of the third maximum number of transmission layers;

[0463] The second maximum number of transmission layers is a fifth default value or is the same as the value of the third maximum number of transmission layers.

[0464] In some embodiments, the first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, and the second PUSCH transmission scheme is associated with a third spatial parameter. If the third spatial parameter is the same as the first spatial parameter or the second spatial parameter, then the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers or the second maximum number of transmission layers.

[0465] In some embodiments, at least one of the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers is a multiple of 2.

[0466] In some embodiments, the second communication unit 1201 is further configured to send a first parameter to the terminal device, where the first parameter includes the at least one maximum number of transmission layers.

[0467] In some embodiments, if the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, the first parameter includes at least one of the following:

[0468] SRS resource set configuration parameters;

[0469] PUSCH configuration parameters;

[0470] PUSCH serving cell configuration parameters.

[0471] In some embodiments, the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, and the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers, and the first parameter includes at least one of the following:

[0472] PUSCH configuration parameters;

[0473] PUSCH serving cell configuration parameters.

[0474] In some embodiments, if the at least one maximum number of transmission layers includes the third maximum number of transmission layers, the first parameter includes at least one of the following:

[0475] PUSCH configuration parameters;

[0476] PUSCH serving cell configuration parameters.

[0477] In some embodiments, the first maximum number of transmission layers is used to determine first information, where the first information is transmission information associated with a first transmission parameter, where the first transmission parameter is a transmission parameter for indicating transmission of a first PUSCH in the first PUSCH transmission scheme;

[0478] The second maximum number of transmission layers is used to determine second information, where the second information is transmission information associated with a second transmission parameter, where the second transmission parameter is a transmission parameter for indicating transmission of a second PUSCH in the first PUSCH transmission scheme, and the first PUSCH and the second PUSCH overlap in the time domain;

[0479] The third maximum number of transmission layers is used to determine third information, where the third information is transmission information associated with a third transmission parameter, and the third transmission parameter is a transmission parameter used to indicate transmission of a third PUSCH in the second PUSCH transmission scheme.

[0480] In some embodiments,

[0481] The number of bits in the information field used to carry the corresponding transmission parameters;

[0482] The range set to which the corresponding transmission parameter belongs.

[0483] In some embodiments, the transmission parameter includes at least one of the following:

[0484] The wideband precoding matrix indicator TPMI, the SRS resource indicator SRI, the phase tracking reference signal PTRS and the demodulation reference signal DMRS are associated with each other.

[0485] In some embodiments, if the corresponding PUSCH transmission is codebook-based transmission, the transmission parameter includes at least one of the following: TPMI, and an indication of association between PTRS and DMRS.

[0486] In some embodiments, the TPMI is used to indicate precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the TPMI is less than or equal to the corresponding maximum number of transmission layers.

[0487] In some embodiments, if the corresponding PUSCH transmission is non-codebook transmission, the transmission parameter includes at least one of the following: SRI, PTRS and DMRS association indication.

[0488] In some embodiments, the SRI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the SRI is less than or equal to the corresponding maximum number of transmission layers.

[0489] In some embodiments, the second communication unit 1101 is further configured to send a first signaling to the terminal device, where the first signaling is used to indicate the type of the PUSCH transmission scheme.

[0490] In some embodiments, the first signaling includes at least one of the following:

[0491] Downlink control information DCI;

[0492] Radio Resource Control (RRC) signaling;

[0493] Media Access Control (MAC) signaling.

[0494] In some embodiments, if the first signaling is DCI, the SRS resource set indication field carried in the DCI is used to indicate the type of the PUSCH transmission scheme.

[0495] In some embodiments, if the value of the SRS resource set indication field is a first value, the first value indicates two SRS resource sets, and the PUSCH transmission scheme is a first PUSCH transmission scheme; and / or,

[0496] If the value of the SRS resource set indication field is a second value, the second value indicates an SRS resource set, and the PUSCH transmission scheme is a second PUSCH transmission scheme.

[0497] In some embodiments, if the second value indicates a first SRS resource set associated with the first maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers; and / or,

[0498] If the second value indicates the second SRS resource set associated with the second maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the second maximum number of transmission layers.

[0499] In some embodiments, the spatial parameters include at least one of the following:

[0500] Transmission Configuration Indication TCI status;

[0501] Antenna panel information;

[0502] Control resource set CORESET group information;

[0503] Sounding reference signal SRS resource set information;

[0504] Beam information.

[0505] Those skilled in the art should understand that the relevant descriptions of the above-mentioned terminal device 1000 and network device 1100 in the embodiments of the present application can be understood by referring to the relevant descriptions of the wireless communication method in the embodiments of the present application.

[0506] Figure 12 is a schematic diagram of a communication device 1200 provided in an embodiment of the present application. The communication device can be a terminal device or a network device. The communication device 1200 shown in Figure 12 includes a processor 1210, which can call and execute a computer program from a memory to implement the method in the embodiment of the present application.

[0507] Optionally, as shown in FIG12 , the communication device 1200 may further include a memory 1220. The processor 1210 may call and execute a computer program from the memory 1220 to implement the method in the embodiment of the present application.

[0508] The memory 1220 may be a separate device independent of the processor 1210 , or may be integrated into the processor 1210 .

[0509] Optionally, as shown in FIG12 , the communication device 1200 may further include a transceiver 1230 , and the processor 1210 may control the transceiver 1230 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0510] The transceiver 1230 may include a transmitter and a receiver. The transceiver 1230 may further include an antenna, and the number of antennas may be one or more.

[0511] Optionally, the communication device 1200 may be a terminal device according to an embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the terminal device in each method according to the embodiment of the present application. For the sake of brevity, these processes are not described here. The first communication unit in the terminal device may be implemented by the transceiver 1230.

[0512] Optionally, the communication device 1200 may be a network device according to an embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the network device in each method according to the embodiment of the present application. For the sake of brevity, these processes are not described here. The second communication unit in the network device may be implemented by the transceiver 1230.

[0513] Figure 14 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1300 shown in Figure 13 includes a processor 1310, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0514] Optionally, as shown in FIG13 , the chip 1300 may further include a memory 1320 , wherein the processor 1310 may call and execute a computer program from the memory 1320 to implement the method in the embodiment of the present application.

[0515] The memory 1320 may be a separate device independent of the processor 1310 , or may be integrated into the processor 1310 .

[0516] Optionally, the chip 1300 may further include an input interface 1330. The processor 1310 may control the input interface 1330 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0517] Optionally, the chip 1300 may further include an output interface 1340. The processor 1310 may control the output interface 1340 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0518] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0519] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0520] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0521] Figure 14 is a schematic block diagram of a communication system 1400 provided in an embodiment of the present application. As shown in Figure 14, the communication system 1400 includes a terminal device 1410 and a network device 1420. In one example, the network device 1502 includes: an access network device and / or a core network device.

[0522] Among them, the terminal device 1410 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1420 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0523] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0524] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0525] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0526] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0527] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0528] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the execution of the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0529] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0530] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the execution of the computer program instructions enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0531] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the execution of the computer program instructions enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0532] The embodiment of the present application also provides a computer program.

[0533] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0534] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0535] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0536] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0537] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0538] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of the solution of this embodiment according to actual needs.

[0539] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0540] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0541] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, the method comprising: The terminal device receives at least one maximum number of transmission layers sent by the network device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first physical uplink shared channel PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

2. The method according to claim 1, wherein The first PUSCH transmission scheme is used for transmission of a first PUSCH and a second PUSCH, the first PUSCH and the second PUSCH overlap in the time domain, and the second PUSCH transmission scheme is used for transmission of a third PUSCH.

3. The method according to claim 1 or 2, wherein: The at least one maximum number of transmission layers includes: the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers.

4. The method according to claim 3, wherein: The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers satisfy at least one of the following: The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is the same as the third maximum number of transmission layers; The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers; The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are different from each other.

5. The method according to claim 3 or 4, wherein: The first maximum number of transmission layers is associated with a first spatial parameter of the two different spatial parameters; The second maximum number of transmission layers is associated with a second spatial parameter of the two different spatial parameters; The third maximum number of transmission layers is associated with a third spatial parameter associated with the second PUSCH transmission scheme.

6. The method according to claim 1 or 2, wherein: The at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the third maximum number of transmission layers.

7. The method according to claim 6, wherein: The second maximum number of transmission layers is one of the following: First default value; a difference between the first maximum number of transmission layers and the third maximum number of transmission layers; The same as the value of the third maximum number of transmission layers; The same as the value of the first maximum number of transmission layers; The second default value is subtracted from the value of the first maximum number of transmission layers.

8. The method according to claim 6 or 7, wherein: The first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, the second PUSCH transmission scheme is associated with a third spatial parameter, the first spatial parameter is associated with the first maximum number of transmission layers, the second spatial parameter is the same as the third spatial parameter, then the value of the second maximum number of transmission layers is the same as the value of the third maximum number of transmission layers.

9. The method according to claim 1 or 2, wherein: The at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the second maximum number of transmission layers.

10. The method according to claim 9, wherein: The third maximum number of transmission layers is one of the following: Third default value; the sum of the first maximum number of transmission layers and the second maximum number of transmission layers; The same as the first maximum number of transmission layers; The same as the second maximum number of transmission layers.

11. The method according to claim 1 or 2, wherein: The at least one maximum number of transmission layers includes: the third maximum number of transmission layers.

12. The method according to claim 11, wherein The first maximum number of transmission layers is a fourth default value or is the same as the value of the third maximum number of transmission layers; The second maximum number of transmission layers is a fifth default value or is the same as the value of the third maximum number of transmission layers.

13. The method according to any one of claims 9 to 12, wherein: The first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, and the second PUSCH transmission scheme is associated with a third spatial parameter. If the third spatial parameter is the same as the first spatial parameter or the second spatial parameter, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers or the second maximum number of transmission layers.

14. The method according to any one of claims 1 to 13, wherein At least one of the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers is a multiple of 2.

15. The method according to any one of claims 1 to 14, wherein The terminal device receives at least one maximum number of transport layers sent by the network device, including: The terminal device receives a first parameter sent by the network device, where the first parameter includes the at least one maximum number of transmission layers.

16. The method according to claim 15, wherein If the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, the first parameter includes at least one of the following: Sounding reference signal SRS resource set configuration parameters; PUSCH configuration parameters; PUSCH serving cell configuration parameters.

17. The method according to claim 15 or 16, wherein The at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, and the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers, and the first parameter includes at least one of the following: PUSCH configuration parameters; PUSCH serving cell configuration parameters.

18. The method according to claim 15, wherein If the at least one maximum number of transmission layers includes the third maximum number of transmission layers, the first parameter includes at least one of the following: PUSCH configuration parameters; PUSCH serving cell configuration parameters.

19. The method according to any one of claims 1 to 18, wherein The first maximum number of transmission layers is used to determine first information, where the first information is transmission information associated with a first transmission parameter, and the first transmission parameter is a transmission parameter used to indicate transmission of a first PUSCH in the first PUSCH transmission scheme; The second maximum number of transmission layers is used to determine second information, where the second information is transmission information associated with a second transmission parameter, where the second transmission parameter is a transmission parameter for indicating transmission of a second PUSCH in the first PUSCH transmission scheme, and the first PUSCH and the second PUSCH overlap in the time domain; The third maximum number of transmission layers is used to determine third information, where the third information is transmission information associated with a third transmission parameter, and the third transmission parameter is a transmission parameter used to indicate transmission of a third PUSCH in the second PUSCH transmission scheme.

20. The method according to claim 19, wherein The transmission information includes at least one of the following: The number of bits in the information field used to carry the corresponding transmission parameters; The range set to which the corresponding transmission parameter belongs.

21. The method according to claim 19 or 20, wherein The transmission parameters include at least one of the following: The wideband precoding matrix indicator TPMI, the SRS resource indicator SRI, the phase tracking reference signal PTRS and the demodulation reference signal DMRS are associated with each other.

22. The method according to claim 21, wherein If the corresponding PUSCH transmission is codebook-based transmission, the transmission parameter includes at least one of the following: TPMI, and an indication of association between PTRS and DMRS.

23. The method according to claim 22, wherein The TPMI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the TPMI is less than or equal to the corresponding maximum number of transmission layers.

24. The method according to claim 21, wherein If the corresponding PUSCH transmission is non-codebook transmission, the transmission parameter includes at least one of the following: SRI, PTRS and DMRS association indication.

25. The method according to claim 24, wherein The SRI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the SRI is less than or equal to the corresponding maximum number of transmission layers.

26. The method according to any one of claims 1 to 25, wherein The method further comprises: If the PUSCH transmission scheme is the first PUSCH transmission scheme, the terminal device determines the first information according to the first maximum transmission layer, and determines the second information according to the second maximum transmission layer.

27. The method according to any one of claims 19 to 25, wherein The method further comprises: If the PUSCH transmission scheme is the second PUSCH transmission scheme, the terminal device determines the third information according to the third maximum transmission layer.

28. The method according to claim 26 or 27, wherein The method further comprises: The terminal device receives first signaling sent by the network device, where the first signaling is used to indicate the type of the PUSCH transmission scheme.

29. The method according to claim 28, wherein The first signaling includes at least one of the following: Downlink control information DCI; Radio Resource Control (RRC) signaling; Media Access Control (MAC) signaling.

30. The method according to claim 29, wherein If the first signaling is DCI, the SRS resource set indication field carried in the DCI is used to indicate the type of the PUSCH transmission scheme.

31. The method according to claim 30, wherein If the value of the SRS resource set indication field is a first value, the first value indicates two SRS resource sets, and the PUSCH transmission scheme is a first PUSCH transmission scheme; and / or, If the value of the SRS resource set indication field is a second value, the second value indicates an SRS resource set, and the PUSCH transmission scheme is a second PUSCH transmission scheme.

32. The method according to claim 31, wherein If the second value indicates the first SRS resource set associated with the first maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers; and / or, If the second value indicates the second SRS resource set associated with the second maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the second maximum number of transmission layers.

33. The method according to any one of claims 1 to 32, wherein The spatial parameters include at least one of the following: Transmission Configuration Indication TCI status; Antenna panel information; Control resource set CORESET group information; SRS resource set information; Beam information.

34. The method according to any one of claims 1 to 33, wherein In a case where a first PUSCH and a second PUSCH transmitted by the first PUSCH transmission scheme are respectively scheduled by a first DCI and a second DCI, and the first PUSCH and the second PUSCH overlap in the time domain, the method further includes: If the power of the first PUSCH and the power of the second PUSCH exceed the maximum power requirement, the terminal device transmits the first PUSCH and / or the second PUSCH according to a power control priority order, and the power control priority order includes a power allocation priority order between the first PUSCH and the second PUSCH.

35. The method according to claim 34, wherein The priority order of the power control is based on at least one of the following: a relationship between a first time interval and a first duration, where the first time interval is a time interval between a reception time of a third DCI and a transmission time of a third PUSCH, the third DCI being the DCI received later than the first DCI and the second DCI, and the third PUSCH being the PUSCH transmitted earlier than the first PUSCH and the second PUSCH; The priorities of the first PUSCH and the second PUSCH.

36. The method according to claim 35, wherein If the first time interval is greater than or equal to the first duration, the priority order of the power control is that the first PUSCH is greater than the second PUSCH, or the second PUSCH or the first PUSCH; or, If the first time interval is less than the first duration, the priority of the power control is that the fourth PUSCH is greater than the third PUSCH, and the fourth PUSCH is another one of the first PUSCH and the second PUSCH other than the third PUSCH.

37. The method according to claim 36, wherein If the first time interval is greater than or equal to the first duration, and the priority of the first PUSCH is greater than the priority of the second PUSCH, the priority of the power control is that the first PUSCH is greater than the second PUSCH; or, If the first time interval is greater than or equal to the first duration, and the priority of the second PUSCH is greater than the priority order of the first PUSCH, the priority order of the power control is that the second PUSCH is greater than the first PUSCH.

38. The method according to any one of claims 35 to 37, wherein The conditions for the terminal device to transmit the first PUSCH and / or the second PUSCH according to the priority order of power control include: The power between the first panel and the second panel of the terminal device supports dynamic adjustment, the first panel is used to transmit the first PUSCH, and the second panel is used to transmit the second PUSCH.

39. A wireless communication method, the method comprising: The network device sends at least one maximum number of transmission layers to the terminal device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first physical uplink shared channel PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

40. The method of claim 39, wherein The first PUSCH transmission scheme is used for transmission of a first PUSCH and a second PUSCH, the first PUSCH and the second PUSCH overlap in the time domain, and the second PUSCH transmission scheme is used for transmission of a third PUSCH.

41. The method according to claim 39 or 40, wherein The at least one maximum number of transmission layers includes: the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers.

42. The method according to claim 41, wherein The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers satisfy at least one of the following: The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is the same as the third maximum number of transmission layers; The sum of the first maximum number of transmission layers and the second maximum number of transmission layers is independent of the third maximum number of transmission layers; The first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers are different from each other.

43. The method according to claim 41 or 42, wherein The first maximum number of transmission layers is associated with a first spatial parameter of the two different spatial parameters; The second maximum number of transmission layers is associated with a second spatial parameter of the two different spatial parameters; The third maximum number of transmission layers is associated with a third spatial parameter associated with the second PUSCH transmission scheme.

44. The method according to claim 39 or 40, wherein The at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the third maximum number of transmission layers.

45. The method of claim 44, wherein: The second maximum number of transmission layers is one of the following: First default value; a difference between the first maximum number of transmission layers and the third maximum number of transmission layers; The same as the value of the third maximum number of transmission layers; The same as the value of the first maximum number of transmission layers; The second default value is subtracted from the value of the first maximum number of transmission layers.

46. ​​The method according to claim 44 or 45, wherein The first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, the second PUSCH transmission scheme is associated with a third spatial parameter, the first spatial parameter is associated with the first maximum number of transmission layers, the second spatial parameter is the same as the third spatial parameter, then the value of the second maximum number of transmission layers is the same as the value of the third maximum number of transmission layers.

47. The method according to claim 39 or 40, wherein The at least one maximum number of transmission layers includes: the first maximum number of transmission layers and the second maximum number of transmission layers.

48. The method of claim 47, wherein The third maximum number of transmission layers is one of the following: Third default value; the sum of the first maximum number of transmission layers and the second maximum number of transmission layers; The same as the first maximum number of transmission layers; The same as the second maximum number of transmission layers.

49. The method according to claim 39 or 40, wherein The at least one maximum number of transmission layers includes: the third maximum number of transmission layers.

50. The method of claim 49, wherein The first maximum number of transmission layers is a fourth default value or is the same as the value of the third maximum number of transmission layers; The second maximum number of transmission layers is a fifth default value or is the same as the value of the third maximum number of transmission layers.

51. The method according to any one of claims 47 to 50, wherein The first PUSCH transmission scheme is associated with a first spatial parameter and a second spatial parameter, and the second PUSCH transmission scheme is associated with a third spatial parameter. If the third spatial parameter is the same as the first spatial parameter or the second spatial parameter, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers or the second maximum number of transmission layers.

52. The method according to any one of claims 39 to 51, wherein At least one of the first maximum number of transmission layers, the second maximum number of transmission layers, and the third maximum number of transmission layers is a multiple of 2.

53. The method according to any one of claims 39 to 52, wherein The network device sends at least one maximum transmission layer number to the terminal device, including: The network device sends a first parameter to the terminal device, where the first parameter includes the at least one maximum number of transmission layers.

54. The method of claim 53, wherein: If the at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, the first parameter includes at least one of the following: Sounding reference signal SRS resource set configuration parameters; PUSCH configuration parameters; PUSCH serving cell configuration parameters.

55. The method according to claim 53 or 54, wherein The at least one maximum number of transmission layers includes the first maximum number of transmission layers and / or the second maximum number of transmission layers, and the third maximum number of transmission layers is the sum of the first maximum number of transmission layers and the second maximum number of transmission layers, and the first parameter includes at least one of the following: PUSCH configuration parameters; PUSCH serving cell configuration parameters.

56. The method of claim 53, wherein If the at least one maximum number of transmission layers includes the third maximum number of transmission layers, the first parameter includes at least one of the following: PUSCH configuration parameters; PUSCH serving cell configuration parameters.

57. The method according to any one of claims 39 to 56, wherein The first maximum number of transmission layers is used to determine first information, where the first information is transmission information associated with a first transmission parameter, and the first transmission parameter is a transmission parameter used to indicate transmission of a first PUSCH in the first PUSCH transmission scheme; The second maximum number of transmission layers is used to determine second information, where the second information is transmission information associated with a second transmission parameter, where the second transmission parameter is a transmission parameter for indicating transmission of a second PUSCH in the first PUSCH transmission scheme, and the first PUSCH and the second PUSCH overlap in the time domain; The third maximum number of transmission layers is used to determine third information, where the third information is transmission information associated with a third transmission parameter, and the third transmission parameter is a transmission parameter used to indicate transmission of a third PUSCH in the second PUSCH transmission scheme.

58. The method of claim 57, wherein The transmission information includes at least one of the following: The number of bits in the information field used to carry the corresponding transmission parameters; The range set to which the corresponding transmission parameter belongs.

59. The method according to claim 57 or 58, wherein The transmission parameters include at least one of the following: The wideband precoding matrix indicator TPMI, the SRS resource indicator SRI, the phase tracking reference signal PTRS and the demodulation reference signal DMRS are associated with each other.

60. The method of claim 59, wherein If the corresponding PUSCH transmission is codebook-based transmission, the transmission parameter includes at least one of the following: TPMI, and an indication of association between PTRS and DMRS.

61. The method of claim 60, wherein: The TPMI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the TPMI is less than or equal to the corresponding maximum number of transmission layers.

62. The method of claim 59, wherein: If the corresponding PUSCH transmission is non-codebook transmission, the transmission parameter includes at least one of the following: SRI, PTRS and DMRS association indication.

63. The method of claim 62, wherein: The SRI is used to indicate the precoding information and the number of transmission layers of the corresponding PUSCH, and the number of transmission layers indicated by the SRI is less than or equal to the corresponding maximum number of transmission layers.

64. The method according to any one of claims 39 to 63, wherein The method further comprises: The network device sends a first signaling to the terminal device, where the first signaling is used to indicate a type of a PUSCH transmission scheme.

65. The method of claim 64, wherein The first signaling includes at least one of the following: Downlink control information DCI; Radio Resource Control (RRC) signaling; Media Access Control (MAC) signaling.

66. The method of claim 65, wherein If the first signaling is DCI, the SRS resource set indication field carried in the DCI is used to indicate the type of the PUSCH transmission scheme.

67. The method of claim 66, wherein If the value of the SRS resource set indication field is a first value, the first value indicates two SRS resource sets, and the PUSCH transmission scheme is a first PUSCH transmission scheme; and / or, If the value of the SRS resource set indication field is a second value, the second value indicates an SRS resource set, and the PUSCH transmission scheme is a second PUSCH transmission scheme.

68. The method of claim 67, wherein If the second value indicates the first SRS resource set associated with the first maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the first maximum number of transmission layers; and / or, If the second value indicates the second SRS resource set associated with the second maximum number of transmission layers, the value of the third maximum number of transmission layers is the same as the value of the second maximum number of transmission layers.

69. The method according to any one of claims 39 to 68, wherein The spatial parameters include at least one of the following: Transmission Configuration Indication TCI status; Antenna panel information; Control resource set CORESET group information; Sounding reference signal SRS resource set information; Beam information.

70. A terminal device comprising: A first communication unit is configured to receive at least one maximum number of transmission layers sent by a network device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers, and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first physical uplink shared channel (PUSCH) transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and where the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

71. A network device comprising: The second communication unit is configured to send at least one maximum number of transmission layers to the terminal device, where the at least one maximum number of transmission layers is used to determine a first maximum number of transmission layers, a second maximum number of transmission layers and / or the at least one maximum number of transmission layers is used to determine a third maximum number of transmission layers, where the first maximum number of transmission layers and the second maximum number of transmission layers are used for a first physical uplink shared channel PUSCH transmission scheme, where the first PUSCH transmission scheme is associated with two different spatial parameters, and the third maximum number of transmission layers is used for a second PUSCH transmission scheme, where the second PUSCH transmission scheme is associated with one spatial parameter.

72. A terminal device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 38.

73. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 39 to 69.

74. A chip comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 38, or executes the method according to any one of claims 39 to 69.

75. A computer-readable storage medium for storing a computer program, wherein the execution of the computer program causes a computer to execute the method according to any one of claims 1 to 38, or the method according to any one of claims 39 to 69.

76. A computer program product comprising computer program instructions, wherein execution of the computer program instructions causes a computer to perform the method according to any one of claims 1 to 38, or the method according to any one of claims 39 to 69.

77. A computer program, wherein the execution of the computer program causes a computer to execute the method according to any one of claims 1 to 38, or the method according to any one of claims 39 to 69.

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