WO2020206581A1

WO2020206581A1 - Signal transmission method, terminal device, and network device

Info

Publication number: WO2020206581A1
Application number: PCT/CN2019/081688
Authority: WO
Inventors: 陈文洪; 史志华
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-10-15
Also published as: CN112970294A; CN112970294B

Abstract

Disclosed are a signal transmission method, a terminal device and a network device. The method comprises: a terminal device detecting, in a first search space, first DCI, the first DCI comprising a first TPC command field; and the terminal device determining, according to the first TPC command field, a sending power of a first uplink signal, wherein the first uplink signal is an uplink signal scheduled by second DCI detected in a second search space, or the first uplink signal is a PUCCH used for carrying first HARQ-ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to a PDSCH scheduled by the second DCI detected in the second search space, and the first search space and the second search space are associated with the same CORESET or CORESETs in the same CORESET group. The method, the terminal device and the network device in the embodiments of the present application can better match the uplink signal transmission in non-coherent uplink transmission, and can help to improve the spectral efficiency of the uplink transmission, thereby improving the transmission performance of uplink signals.

Description

Signal transmission method, terminal equipment and network equipment

Technical field

The embodiments of the present application relate to the field of communications, and in particular to a method, terminal device, and network device for transmitting signals.

Background technique

In related technologies, the terminal device can adjust the transmission power of the uplink signal through the transmit power control (Transmit Power Control, TPC) command field configured by the network device. For example, the terminal device determines the Physical Uplink Shared Channel (PUSCH)/Physical Uplink Control Channel (Physical Uplink Control Channel) through the TPC command field carried in the Downlink Control Information (DCI) format (format) 2_2 , PUCCH) transmission power, or the terminal device determines the sounding reference signal (Sounding Reference Signal, SRS) transmission power through the TPC command field carried by DCI format 2_3. However, different TPC command fields can only distinguish different groups of users or different groups of carriers, which may affect the transmission performance of uplink signals in uplink non-coherent transmission.

Summary of the invention

The embodiments of the present application provide a signal transmission method, terminal equipment, and network equipment, which can well match the uplink signal transmission in the uplink non-coherent transmission, which is beneficial to improve the spectral efficiency of the uplink transmission, thereby improving the transmission performance of the uplink signal.

In a first aspect, a signal transmission method is provided, the method includes: a terminal device detects first downlink control information DCI in a first search space, the first DCI includes a first transmission power control TPC command field; The terminal device determines the transmit power of the first uplink signal according to the first TPC command field; wherein, the first uplink signal is an uplink signal scheduled by a second DCI detected in a second search space, or the The first uplink signal is the physical uplink control channel PUCCH used to carry the first HARQ-ACK information, and the first HARQ-ACK information corresponds to the physical downlink shared channel PDSCH scheduled by the second DCI detected in the second search space HARQ-ACK information, the first search space and the second search space are associated with the same control resource set CORESET or CORESET in the same CORESET group.

In a second aspect, a signal transmission method is provided. The method includes: a terminal device receives a transmission power control TPC command field sent by a network device, where the TPC command field has an association relationship with a first identifier; The TPC command field determines the transmission power of the first uplink signal corresponding to the first identifier.

In a third aspect, a signal transmission method is provided. The method includes: a network device transmits first downlink control information DCI to a terminal device in a first search space, where the first DCI includes a first transmission power control TPC command Field, the first TPC command field is used by the terminal device to determine the transmit power of the first uplink signal; wherein, the first uplink signal is an uplink signal scheduled by a second DCI transmitted in a second search space, Or the first uplink signal is the physical uplink control channel PUCCH used to carry the first hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ)-response ACK information, and the first HARQ-ACK information is used in the second search The HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI transmitted in the space, and the first search space and the second search space are associated with the same control resource set CORESET or CORESET in the same CORESET group.

In a fourth aspect, a signal transmission method is provided. The method includes: a network device sends a transmission power control TPC command field to a terminal device, the first TPC command field has an association relationship with a first identifier, and the TPC command field Used to determine the transmission power of the first uplink signal corresponding to the first identifier.

In a fifth aspect, a terminal device is provided, which is used to execute any one of the foregoing first to second aspects or the method in each of its implementation manners.

Specifically, the terminal device includes a functional module for executing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

In a sixth aspect, a network device is provided, which is used to execute any one of the foregoing third to fourth aspects or the method in each implementation manner thereof.

Specifically, the network device includes a functional module for executing any one of the foregoing third aspect to the fourth aspect or the method in each implementation manner thereof.

In a seventh aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.

In an eighth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute any one of the above-mentioned third aspect to the fourth aspect or the method in each implementation manner thereof.

In a ninth aspect, a chip is provided for implementing any one of the above-mentioned first to fourth aspects or a method in each of its implementation manners.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the fourth aspect or any of the implementations thereof method.

In a tenth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof.

In an eleventh aspect, a computer program product is provided, including computer program instructions that cause a computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof.

In a twelfth aspect, a computer program is provided, which, when run on a computer, causes the computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof.

Through the above technical solution, the downlink control information (Downlink Control Information, DCI) corresponding to the uplink signal detected in different search spaces associated with the same control resource set (Control Resource Set, CORESET) is associated with the DCI including the TPC command field Or associate the DCI corresponding to the uplink signal detected in different search spaces associated with the CORESET in the same CORESET group with the DCI including the TPC command field, so that the uplink signal can be determined according to the TPC command field The transmission power helps to improve the spectral efficiency of the uplink transmission in the uplink non-coherent transmission, thereby improving the transmission performance of the uplink signal.

Description of the drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Figures 2a and 2b show schematic diagrams of uplink non-coherent transmission.

Figures 3a and 3b show schematic diagrams of PUSCH and PUCCH transmission based on multiple pannels.

FIG. 4 is a schematic diagram of interaction of a signal transmission method provided by an embodiment of the present application.

FIG. 5 is another schematic diagram of interaction of the signal transmission method provided by an embodiment of the present application.

Figure 6 is a flowchart corresponding to the first embodiment.

Figure 7 is a flowchart corresponding to the second embodiment.

FIG. 8 is a schematic diagram of an association between the first identifier and the TPC command field provided in an embodiment of the present application.

FIG. 9 is another schematic diagram of the association between the first identifier and the TPC command field provided by an embodiment of the present application.

FIG. 10 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 11 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 12 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 13 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 14 is another schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 15 is another schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 16 is a schematic block diagram of a chip provided by an embodiment of the present application.

FIG. 17 is a schematic block diagram of a communication system provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and broadband code Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution LTE system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) or future 5G System etc.

In particular, the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as sparse code multiple access (SCMA) systems, low-density signatures (Low Density Signature, LDS) system, etc. Of course, the SCMA system and LDS system can also be called other names in the communication field; further, the technical solutions of the embodiments of this application can be applied to multi-carriers using non-orthogonal multiple access technology Transmission systems, such as non-orthogonal multiple access technology Orthogonal Frequency Division Multiplexing (OFDM), Filter Bank Multi-Carrier (FBMC), Generalized Frequency Division Multiplexing (Generalized Frequency Division Multiplexing) Frequency Division Multiplexing (GFDM), Filtered-OFDM (F-OFDM) systems, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network devices gNB in 5G networks, or network devices in the future evolution of public land mobile networks (Public Land Mobile Network, PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes but is not limited to User Equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, Terminal, wireless communication equipment, user agent or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile network (Public Land Mobile Network, PLMN) Terminal equipment, etc., are not limited in the embodiment of the present invention.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

Currently, the transmit power of PUSCH can be calculated by the following formula:

Among them, i is the index of one PUSCH transmission, j is the index of open-loop power control parameters (including target power _{PO_PUSCH, b, f, c} (j) and path loss factor α _{b, f, c} (j)); q _d Is the index of the reference signal used for path loss measurement, used to obtain the path loss value PL _b,f,c (q _d ), which is also an open-loop power control parameter; f _b,f,c (i,l) is Closed-loop power control adjustment factor, where l is the closed-loop power control process. The terminal device determines the closed-loop power adjustment factor according to the TPC command field sent by the network side. The TPC command field can be carried by the DCI used to schedule the PUSCH in the UE search space, or used in the common search space. The DCI format (format) 2_2 of the group TPC command field is carried.

In NR, the terminal device determines the scheduled transmission beam of the PUSCH based on the SRS Resource Indicator (SRI) in the DCI, and also determines the power control parameters used by the PUSCH based on the SRI. Specifically, the network side can configure multiple SRI-PUSCH-PowerControl parameter fields through Radio Resource Control (RRC) signaling in advance. Each parameter field corresponds to an SRI value, and the parameter field contains the corresponding SRI value. A set of PUSCH power control parameter configurations (for example, j, q _d , l). When the values indicated by the SRI are different, the power control parameter configuration in the corresponding parameter field (SRI-PUSCH-PowerControl) is used to determine the transmit power of the currently scheduled PUSCH.

Similarly, the terminal device can also determine the closed-loop power adjustment factor through the TPC command field carried in the DCI format 2_2, so as to determine the transmission power of the PUCCH.

Aperiodic SRS transmission is introduced in the NR system, and the network side can trigger the terminal's SRS transmission through uplink or downlink DCI. The trigger signaling used to trigger aperiodic SRS transmission can be carried by the DCI used for scheduling PUSCH/PDSCH in the UE-specific search space, or can be carried by DCI format 2_3 in the common search space. Among them, DCI format 2_3 can be used not only to trigger aperiodic SRS transmission, but also to configure the TPC command field of SRS on a group of UEs or a group of carriers at the same time. After receiving the aperiodic SRS trigger signaling, the terminal equipment performs SRS transmission on the SRS resource set indicated by the trigger signaling.

The current transmission power of SRS can be calculated by the following formula:

Among them, i is the index of one SRS transmission, q _s is the index of open-loop power control parameters (including target power P _{O_SRS, b, f, c} (q _s ) and path loss factor α _{SRS, b, f, c} (q _s) )); q _d is the index of the reference signal used for path loss measurement, used to obtain the path loss value PL _b,f,c (q _d ), which is also an open-loop power control parameter; h _b,f,c ( i, l) is the closed-loop power control adjustment factor, where l is the closed-loop power control process. Among them, q _d and q _{s are} included in the configuration parameters of the SRS resource set, and are configured to the terminal through high-level signaling. If high-level signaling configures SRS and PUSCH to use the same power control process, then h _{b, f, c} (i, l) = f _{b, f, c} (i, l). If the high-level signaling configures the SRS to use an independent power control process, the network side uses the DCI format 2_3 in the common search space to indicate the TPC command field of each terminal's respective SRS, and the terminal determines the closed-loop power adjustment factor according to its own TPC command field. It has nothing to do with PUSCH closed loop power adjustment factor.

In the NR system, downlink and uplink non-coherent transmission based on multiple transmission points/reception points (TRP) is introduced. Among them, the backhaul connection between TRPs can be ideal or non-ideal. Under ideal backhaul, TRPs can exchange information quickly and dynamically. Under non-ideal backhaul, TRPs can only exchange information due to the large delay. Quasi-static information exchange. In the uplink non-coherent transmission, different TRPs can also independently schedule PUSCH transmission of the same terminal. Different PUSCH transmissions can be configured with independent transmission parameters, such as beam, precoding matrix, number of layers, etc. The scheduled PUSCH transmission can be transmitted in the same time slot or in different time slots. If the terminal is scheduled for two PUSCH transmissions in the same time slot at the same time, it needs to determine how to transmit according to its own capabilities. If the terminal is configured with multiple antenna panels (panel) and supports simultaneous transmission of PUSCH on multiple panels, the two PUSCHs can be transmitted at the same time, and the PUSCHs transmitted on different panels are aligned with the corresponding TRP for analog shaping, thus Different PUSCHs are distinguished through the spatial domain to provide uplink spectral efficiency (as shown in Figure 2a). If the terminal has only a single panel, or does not support simultaneous transmission of multiple panels, it can only transmit PUSCH on one panel (as shown in Figure 2b). Among them, the DCI for scheduling PUSCH transmitted by different TRPs can be carried by different CORESET or CORESET groups, that is, the network side configures multiple CORESET or multiple CORESET groups for the terminal, and each TRP uses its own CORESET or CORESET group for scheduling .

The terminal can have multiple panels for uplink transmission. A panel contains a set of physical antennas, each panel has an independent radio frequency channel, and there is usually a certain degree of isolation between the panels. Therefore, a panel is also usually called an antenna group. Different panels can be used for signal transmission between the terminal and different TRPs. As shown in Figures 3a and 3b, TRP1 performs PUSCH scheduling with the terminal through panel1, and TRP2 performs PUSCH scheduling with the terminal through panel2. The terminal needs to notify the network side of the number of antenna panels configured in the capability report. At the same time, the terminal may also need to notify the network side whether it has the ability to simultaneously transmit signals on multiple antenna panels. Since different panels correspond to different channel conditions, different panels need to adopt different transmission parameters according to their respective channel information. In order to obtain these transmission parameters, it is necessary to configure different SRS resources for different panels to obtain uplink channel information. For example, in order to perform uplink beam management, an SRS resource set can be configured for each panel, so that each panel performs beam management separately and determines an independent analog beam. In order to obtain the precoding information used for PUSCH transmission, an SRS resource set can also be configured for each panel to obtain transmission parameters such as the beam, precoding vector, and number of transmission layers used by the PUSCH transmitted on the panel. At the same time, multi-panel transmission can also be applied to PUCCH, that is, the information carried by the PUCCH resource on the same PUCCH resource or the same time domain resource can be sent to the network side through different panels at the same time. Among them, each panel can have its own panel ID, which is used to associate different signals transmitted on the same panel, that is, the terminal can consider that signals associated with the same panel ID need to be transmitted from the same panel.

In the related art, the DCI format 2_2 is used to carry the PUSCH/PUCCH TPC command field of a group of users, and can be used to adjust the closed-loop power adjustment factor corresponding to the indicated closed-loop power control process 1. The DCI format 2_3 is used to carry the SRS TPC command field of a group of users or a group of carriers, and can be used to adjust the closed-loop power adjustment factor of all SRS transmissions using independent power control processes. If the terminal device wants to perform uplink non-coherent transmission, it may affect the transmission performance of the uplink signal.

FIG. 4 shows a schematic flowchart of a signal transmission method 200 according to an embodiment of the present application. As shown in FIG. 4, the method 200 may be implemented by interaction between a terminal device and a network device. Specifically, the method 200 includes some or all of the following content:

S210: The network device transmits the first DCI to the terminal device in the first search space, where the first DCI includes a first TPC command field.

S220: The terminal device detects the first DCI in the first search space, where the first DCI includes the first TPC command field.

S230. The network device transmits a second DCI to the terminal device in the second search space, where the second DCI is used to schedule a first uplink signal, or the second DCI is used to schedule a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), the second search space and the first search space are associated with the same CORESET or associated with CORESETs in the same CORESET group.

S240: The terminal device detects a second DCI in the second search space, and the second search space and the first search space are associated with the same CORESET or associated with CORESETs in the same CORESET group.

S250: The terminal device determines the transmission power of the first uplink signal or the transmission power of the HARQ-ACK information of the PDSCH according to the first TPC command field.

First of all, it should be noted that the size of the sequence number of the above steps does not imply the order of execution. For example, the first DCI and the second DCI in the embodiment of this application are not in order, and the network device may send the first DCI before sending the first DCI. When sending the second DCI, the terminal device may also detect the second DCI between detecting the first DCI. The execution sequence of this method should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

The first uplink signal in the embodiment of the present application may include the PUSCH, PUCCH or SRS described above. In addition, the PUCCH may also be a PUCCH used to carry HARQ-ACK information. Among them, the HARQ-ACK information may include response ACK/negative response NACK. The first search space and the second search space can be associated with the same CORESET or CORESET in the same CORESET group. That is to say, the TPC command field detected in a CORESET or a CORESET group can be used to determine whether the CORESET or CORESET is The uplink signal scheduled by the DCI detected in the group or the transmission power of the HARQ-ACK information of the scheduled PDSCH. Optionally, the TPC command field detected in the first search space may also be used to determine the transmission power of the uplink signal scheduled by the DCI carrying the TPC command field. For example, the first DCI includes the first TPC command field, The first DCI is also used to trigger SRS transmission, and the triggered SRS transmission uses the first TPC command field to determine the transmission power. It should be noted that triggering of SRS can also be understood as scheduling of SRS.

Therefore, the signal transmission method of the embodiment of the present application associates the DCI corresponding to the uplink signal and the DCI including the TPC command field detected in different search spaces associated with the same CORESET or the same CORESET group, so as to be able to correlate The TPC command field determines the transmission power of the uplink signal, which can well match the uplink signal transmission in the uplink non-coherent transmission, which is beneficial to improve the spectral efficiency of the uplink transmission, thereby improving the transmission performance of the uplink signal.

Optionally, the first search space and the second search space are associated with the same CORESET, which may mean that the CORESET identification (Identification, ID) configured in the first search space and the second search space are the same. The first search space and the second search space are associated with CORESETs in the same CORESET group, which may mean that the CORESET group IDs (CORESET Group ID) configured for the CORESETs respectively associated with the first search space and the second search space are the same. For example, the first search space is associated with the first CORESET, and the second search space is associated with the second CORESET, and the CORESET group identification indications in the first CORESET and the second CORESET are the same.

In non-coherent transmission, the network device can configure multiple CORESETs for the terminal device. For example, the network device configures multiple CORESETs through Radio Resource Control (RRC) signaling, and each CORESET can be associated with one TRP and/or one Antenna panel pannel. A TRP can transmit signals between the corresponding CORESET and the terminal device, or the terminal device can transmit signals between the corresponding CORESET and the network device on a pannel.

In addition, the network equipment can also configure multiple CORESETs for the terminal equipment. For example, the network equipment configures multiple CORESETs through RRC signaling, and configures a CORESET group identifier for each CORESET to identify the CORESET group to which the CORESET belongs. If the group ID is the same, they are considered to belong to the same CORESET group. Alternatively, the network device may configure multiple CORESET groups for the terminal device through RRC signaling, and each CORESET group contains one or more CORESET. Among them, each CORESET group can be associated with a TRP and/or an antenna panel pannel. A TRP can transmit signals between the corresponding CORESET group and the terminal device, or the terminal device can transmit signals between the corresponding CORESET group and the network device on a pannel.

The network device can associate the TPC command field detected in the search space associated with the same CORESET or the same CORESET group with the DCI used to schedule the uplink signal, so that the terminal device can detect it according to a CORESET or a CORESET group The TPC command field included in the DCI determines the transmission power of the uplink signal scheduled by the DCI detected in the CORESET or the CORESET group. Or the network device can also associate the TPC command field detected in the search space associated with the same CORESET or CORESET group with the DCI used to schedule the PDSCH, so that the terminal device can follow the TPC command detected in a CORESET or CORESET group The field determines the transmission power of HARQ-ACK information corresponding to the PDSCH scheduled by the DCI detected in the CORESET or the CORESET group. For example, the first search space is associated with the first CORESET or the CORESET in the first CORESET group, and the terminal device may determine the relationship with the first CORESET according to the TPC command field included in the first DCI detected in the first search space. Or the transmission power of the uplink signal transmission scheduled by the DCI detected in all search spaces associated with the first CORESET group. Alternatively, the terminal device may determine, according to the TPC command field included in the first DCI detected in the first search space, that the DCI scheduled for detection is detected in all search spaces associated with the first CORSET or the first CORESET group The transmission power of the HARQ-ACK information of the PDSCH, where the first CORESET or the first CORESET group may be associated with multiple search spaces.

In the embodiment of the present application, the HARQ-ACK information corresponding to the uplink signal and the PDSCH and the TPC command field need to meet certain timing requirements. Specifically, the TPC command field will only take effect after a period of time after the terminal device receives the TPC command field, for example, the TPC command field and the uplink signal or all the signals to which the TPC command field is applied. The time interval between HARQ-ACK information corresponding to the PDSCH needs to be greater than or equal to several time slots or several OFDM symbols. The uplink signal or the HARQ-ACK information that is scheduled before this, even if the above conditions of the same CORESET or the same CORESET group are met, the TPC command field will not be applied.

In each CORESET or each CORESET group, the terminal device can use a method similar to the method 200 to determine the transmission power of the uplink signal. Optionally, in the embodiment of the present application, the method 200 further includes: the terminal device detects a third DCI in a third search space, the third DCI includes a second TPC command field; the terminal device according to The second TPC command field determines the transmission power of the second uplink signal; wherein, the second uplink signal is the uplink signal scheduled by the fourth DCI detected in the fourth search space, or the second uplink signal Is the PUCCH used to carry the second HARQ-ACK information, the second HARQ-ACK information is the HARQ-ACK information corresponding to the PDSCH scheduled by the fourth DCI detected in the fourth search space, the third search space and The fourth search space is associated with CORESETs in the same CORESET or the same CORESET group. For example, the first search space and the second search space are both associated with the first CORESET, and the third search space and the fourth search space are both associated with the second CORESET. For another example, the first search space and the second search space are both associated with the first CORESET group, and the third search space and the fourth search space are both associated with the second CORESET group.

Optionally, the first search space may be a public search space. Then if the format of the first DCI is DCI format 2_2, the first uplink signal may include PUSCH or PUCCH; if the format of the first DCI is DCI format 2_3, the first uplink signal may be SRS. Optionally, the first search space may also be a UE-specific search space. For example, if the first uplink signal is PUCCH, the first DCI may be DCI used for scheduling PUSCH/PDSCH; if the first uplink signal is PUSCH, then the first DCI may be DCI used for scheduling PUSCH.

Optionally, the second search space shown may be a public search space or a UE-specific search space. The format of the second DCI may be DCI format 0_0, DCI format 0_1, DCI format 1_0, DCI format 1_1, or DCI format 2_3.

Optionally, the terminal device determining the transmit power of the first uplink signal according to the first TPC command field includes: the terminal device determining a closed-loop power control adjustment factor according to the first TPC command field; The terminal device determines the transmission power of the first uplink signal according to the closed-loop power control adjustment factor. For example, the terminal device can determine the f _{b, f, c} (i, l) in the above formula (1) according to the first TPC command field, and then can determine the transmission power of the PUSCH according to the formula (1). For another example, the terminal device can determine h _{b, f, c} (i, l) in the above formula (2) according to the first TPC command field, and then can determine the transmission power of the SRS according to formula (2).

After determining the transmission power of the first uplink signal, the terminal device transmits the first uplink signal to the network device at the determined transmission power. Similarly, the network device receives the first uplink signal transmitted by the terminal device at a determined transmission power.

For a detailed description of the signal transmission method 200 in this embodiment of the present application, please refer to Embodiment 1 and Embodiment 2 below. For brevity, details are not repeated here.

FIG. 5 shows a schematic flowchart of a signal transmission method 300 according to an embodiment of the present application. As shown in FIG. 5, the method 300 may be implemented by interaction between a terminal device and a network device. Specifically, the method 300 includes some or all of the following content:

S310: The network device sends a transmission power control TPC command field to the terminal device, where the TPC command field has an association relationship with the first identifier.

S320: The terminal device receives a transmission power control TPC command field sent by the network device, where the TPC command field has an association relationship with the first identifier.

S330: The terminal device determines the transmission power of the first uplink signal corresponding to the first identifier according to the TPC command field.

First, the following points need to be explained:

1. The first identifier may refer to any of the following definitions: an ID used to identify a panel of a terminal device, or an ID of an SRS resource set, or an ID of an SRS resource, or an ID of a PUCCH resource The ID is either an ID of spatial related information, or an ID of a CSI-RS resource, or an index of an SSB.

2. The TPC command field has an association relationship with the first identifier, which may mean that the first identifier is carried in the TPC command field, or the DCI carrying the TPC command field carries the first identifier. For example, each TPC command domain may be independently configured with the first identifier. For example, in addition to the TPC command and possible closed-loop power control process indication information, each TPC command domain may also include indication information of a first identifier. For another example, multiple TPC command domains may share a first identifier. Each DCI may only include indication information of one first identifier, and all TPC command fields included in the DCI share the same first identifier.

3. The first uplink signal has a corresponding relationship with the first identifier, which may mean that the network device independently configures the corresponding first identifier for each uplink signal of the terminal device. Specifically, the first uplink signal corresponding to the first identifier may include at least one of the following uplink signals: scheduling downlink control information DCI includes an uplink signal of indication information of the first identifier; in the sounding reference signal SRS resource set The identification ID of is equal to the SRS transmitted on the SRS resource set of the first identification; the identification ID of the sounding reference signal SRS resource is equal to the SRS transmitted on the SRS resource of the first identification; used to configure the high-level parameters of the uplink signal The uplink signal that includes the indication information of the first identifier; the uplink signal that includes the indication information of the first identifier in the corresponding space-related information; the configuration parameter of the control resource set CORESET where the scheduling DCI is located includes the information of the first identifier. The uplink signal indicating the information; the uplink signal including the indicating information of the first identifier in the configuration parameters of the search space where the DCI is scheduled; the uplink signal transmitted by the antenna panel determined by the first identifier. In this embodiment of the present application, the first identifier may correspond to one or more uplink signals. At this time, the TPC command field associated with the first identifier may be used for one or more corresponding uplink signals. In the embodiment of the present application, one uplink signal may also correspond to multiple first identifiers. If one uplink signal corresponds to multiple first identifiers, power adjustments need to be performed separately according to the TPC command associated with each first identifier.

4. The first uplink signal may include the PUSCH, PUCCH or SRS described above. In addition, the PUCCH may also be a PUCCH used to carry HARQ-ACK information.

Therefore, in the signal transmission method of the embodiment of the present application, the TPC command field is associated with the uplink signal through a first identifier, where a first identifier can be associated with a pannel and/or a TRP, so that it can be based on the TPC command The domain determines the transmission power of the uplink signal, which can well match the uplink signal transmission in the uplink non-coherent transmission, which is beneficial to improve the spectral efficiency of the uplink transmission, thereby improving the transmission performance of the uplink signal.

Optionally, the terminal device determining the transmit power of the first uplink signal according to the TPC command field includes: the terminal device determines the closed-loop power control adjustment factor according to the TPC command field; The closed-loop power control adjustment factor determines the transmission power of the first uplink signal. For example, the terminal device can determine the f _{b, f, c} (i, l) in the above formula (1) according to the first TPC command field, and then can determine the transmission power of the PUSCH according to the formula (1). For another example, the terminal device can determine h _{b, f, c} (i, l) in the above formula (2) according to the first TPC command field, and then can determine the transmission power of the SRS according to formula (2).

Optionally, in this embodiment of the present application, the terminal device may first determine the first antenna panel according to the first identifier associated with the TPC command field, and then the terminal device may transmit all signals on the determined first antenna panel. The first uplink signal.

For a detailed description of the signal transmission method 300 of the embodiment of the present application, please refer to the third embodiment below. For brevity, the details are not repeated here.

The technical solution of the present application will be described in detail below in conjunction with several specific embodiments.

Embodiment 1: The network device transmits the first DCI including the TPC command field through the first search space, and the TPC command field is used to determine the transmission power of the uplink signal transmission scheduled by the second DCI transmitted in the second search space. The terminal device determines the transmission power of uplink signal transmission scheduled by the second DCI detected in the second search space according to the TPC command field included in the first DCI detected in the first search space. Wherein, the second search space is associated with the same CORESET or the same CORESET in the CORESET group with the first search space.

Optionally, the network device can pre-configure at least one search space through high-level signaling, and the configuration parameters of each search space include the associated CORESET identity (ID) or the associated CORESET group ID, aggregation level , Search space type, etc. The search space type includes whether the search space is a common search space (CSS) or a UE-specific search space (UE-specific Search Space, USS), and the DCI format that the terminal device needs to detect in the search space.

Optionally, the network device can also configure multiple CORESETs or multiple CORESET groups for the terminal device, where each CORESET or each CORESET group is associated with a TRP, that is, the CORESET or the control channel on the CORESET group is transmitted by the TRP, And it is used to schedule signal transmission between the TRP and the terminal equipment. Or, each CORESET or each CORESET group is associated with a panel of a terminal device for scheduling uplink signal transmission on the panel. In this way, network devices can schedule uplink and downlink transmissions corresponding to different TRPs, or uplink transmissions on different panels through different CORESETs or CORESETs in different CORESET groups, thereby improving scheduling flexibility and supporting multiple TRP transmissions or multiple panels transmission.

Optionally, the terminal device may receive multiple CORESETs or multiple CORESET groups configured by the network device, and each CORESET or each CORESET group is associated with several search spaces. The terminal device determines the DCI for uplink scheduling that is also detected in the CORESET or CORESET group based on the TPC command field included in the DCI used to send the TPC command field detected in each CORESET or each CORESET group The transmit power of the scheduled uplink signal. In other words, the TPC command field detected on a CORESET or a CORESET group can only be used for the uplink signal transmission scheduled on the CORESET or the CORESET group, and cannot be used for uplink signal transmission scheduled on other CORESETs or other CORESET groups. In this way, independent closed-loop power control for each CORESET or each CORESET group can be ensured, so as to independently perform power control for the uplink signal of each TRP or the uplink signal transmitted on each panel, and improve the accuracy of the uplink power control. .

Specifically, after the terminal device receives the DCI format that needs to be detected in a search space configured by the network device through the search space type (searchSpaceType), it blindly detects the corresponding DCI format in the search space and the CORESET associated with the search space. In this embodiment, it is assumed that the terminal device detects the first DCI in the first search space and detects the second DCI in the second search space. It should be noted that, in this embodiment, the terminal device detects DCI in a search space. It can also be described as the terminal device detecting DCI in the search space and the CORESET associated with the search space, or it can be described as the terminal device detecting DCI in the search space. DCI is detected in CORESET of spatial association.

In this embodiment, it is assumed that the first search space is associated with a first CORESET, and the first CORESET is associated with multiple search spaces. Or assuming that the first search space is associated with CORESETs in a first CORESET group, the first CORESET group may include one or more CORESETs, and the first CORESET group may be associated with multiple search spaces.

Wherein, the first search space is a public search space. Specifically, the search space type (searchSpaceType) in the first search space is configured as Common, and the corresponding DCI format to be detected includes DCI format 2_2 and/or DCI format 2_3. Correspondingly, the DCI format of the first DCI is DCI format 2_2 or DCI format 2_3, that is, the first DCI is a DCI specifically used to indicate a group TPC of an uplink signal.

The second search space may be CSS or USS. If the second search space is CSS, the corresponding DCI format to be detected is DCI format 2_3, or DCI format 0_0 and DCI format 1_0. If the second search space is USS, the corresponding DCI formats that need to be detected include DCI format 0_0 and DCI format 1_0, or include DCI format 0_1 and DCI format 1_1, or include the above four DCI formats. Correspondingly, the DCI format of the second DCI is DCI format 0_0 or DCI format 0_1 or DCI format 2_3, that is, the second DCI is DCI used to schedule PUSCH transmission or trigger aperiodic SRS transmission.

Optionally, the uplink signal is SRS or PUSCH or PUCCH. For example, if the DCI format of the first DCI is DCI format 2_2, the uplink signal is PUSCH or PUCCH; if the DCI format of the first DCI is DCI format 2_3, the uplink signal is an aperiodic SRS.

The first DCI may include multiple TPC command fields. Specifically, the first DCI includes multiple terminal devices or respective TPC command fields on multiple carriers, and the network device notifies the terminal device through high-level signaling of the TPC command field belonging to a certain terminal device among the multiple TPC command fields . For example, the terminal device can determine its own TPC command domain through the TPC index (index) indicated by the network device. After detecting the first DCI from the first search space, the terminal device determines its own TPC command field from the multiple TPC command fields included in the first DCI, and then determines the relationship with the first CORESET according to the TPC command field. Or the transmission power of the uplink signal transmission scheduled by the uplink grant (uplink grant) detected in all search spaces associated with the CORESET in the first CORESET group.

In this embodiment, the terminal device may determine the closed-loop power control adjustment factor of the closed-loop power control process indicated in the TPC command field according to the TPC command in the TPC command field; and determine the closed-loop power control adjustment factor according to the closed-loop power control adjustment factor. The transmission power corresponding to the closed-loop power control process. When the uplink signal scheduled by the second DCI adopts the closed-loop power control process, the corresponding transmission power is used as the uplink transmission power.

Finally, the terminal device transmits the uplink signal according to the determined transmission power. The network device receives the uplink signal transmitted by the terminal device.

FIG. 6 shows a schematic block diagram corresponding to Embodiment 1. Among them, CORESET1 and COSRESET2 are the two CORESETs configured by the network device to the terminal device. Among them, CORESET1 is associated with CSS1, USS1 and USS2, and CORESET2 is associated with CSS2 and USS3. The terminal device determines the DCI format 0_0 detected by the USS1 and the DCI format 0_1 detected by the USS2 according to the PUSCH TPC command in the DCI format 2_2 detected by the CSS1 to determine the closed-loop power adjustment factor of the PUSCH scheduled by the DCI format 0_1 detected by the USS2. The terminal device determines the closed-loop power adjustment factor of the SRS transmission triggered by the DCI format 0_1 triggered by the USS2 according to the SRS TPC command in the DCI format 2_3 detected by the CSS1. Similarly, in CORESET2, the terminal device determines the closed-loop power adjustment factor of the PUSCH scheduled by the DCI format 0_1 scheduled by the USS3 according to the PUSCH TPC command in the DCI format 2_2 detected by the CSS2.

Embodiment 2: The network device transmits the first DCI including the TPC command field through the first search space, the TPC command field is used to determine the transmission power of the target HARQ-ACK information, and the target HARQ-ACK information is the second search space HARQ-ACK information of the PDSCH scheduled by the second DCI transmitted in. Wherein, the second search space is associated with the same CORESET or the same CORESET group with the first search space. The terminal device determines the transmission power of the target HARQ-ACK information according to the TPC command field included in the first DCI detected in the first search space. The target HARQ-ACK information is the HARQ-ACK information of the PDSCH scheduled by the second DCI detected in the second search space, and the second search space is associated with the same CORESET or the same CORESET group with the first search space.

For specific descriptions of the search space, CORESET, CORESET group, first search space, second search space, and TPC command field, refer to the description in Embodiment 1. For brevity, it will not be repeated here.

In this embodiment, HARQ-ACK information is carried by PUCCH. Therefore, the terminal device determining the transmission power of the HARQ-ACK information can also be described as the terminal device determining the transmission power of the PUCCH carrying the HARQ-ACK information.

The DCI format of the first DCI is DCI format 2_2, and the CRC scrambling ID adopted by the first DCI is PUCCH-TPC-RNTI, that is, the first DCI is DCI specifically used to indicate the group TPC of the PUCCH. The DCI format of the second DCI is DCI format 1_0 or DCI format 1_1, that is, the second DCI is DCI used to schedule PDSCH transmission.

Specifically, after the terminal device receives the DCI format that needs to be detected in a search space configured by the network device through the search space type (searchSpaceType), it blindly detects the corresponding DCI format in the search space and the CORESET associated with the search space. In this embodiment, it is assumed that the terminal detects the first DCI in the first search space and detects the second DCI in the second search space.

The terminal device can receive multiple CORESETs or multiple CORESET groups configured by the network device, and each CORESET or each CORESET group is associated with several search spaces. According to the TPC command field contained in the DCI used to send PUCCH and TPC commands detected in each CORESET or each CORESET group, the terminal device determines that the CORESET or the DCI detected in the CORESET group for downlink scheduling is scheduled The transmission power of the HARQ-ACK information of the PDSCH. In other words, the TPC command detected on a CORESET or a CORESET group can only be used for HARQ-ACK transmission of the CORESET or PDSCH scheduled on the CORESET group, and cannot be used for other CORESET or PDSCH scheduled on other CORESET groups. HARQ-ACK transmission. Through this method, independent closed-loop power control of each CORESET or each CORESET group can be guaranteed, so that the power control is performed independently for the HARQ-ACK feedback of the PDSCH scheduled by each TRP, and the accuracy of uplink power control is improved.

In this embodiment, the terminal device determines the closed-loop power control adjustment factor of the closed-loop power control process indicated in the TPC command field according to the TPC command in the TPC command field; and determines the closed-loop power control adjustment factor according to the closed-loop power control adjustment factor. The transmit power corresponding to the closed-loop power control process. When the PUCCH carrying the HARQ-ACK information of the PDSCH scheduled by the second DCI adopts the closed-loop power control process, the corresponding transmission power is adopted as the uplink transmission power.

The terminal device transmits the HARQ-ACK information according to the determined transmission power. The network device receives the HARQ-ACK information transmitted by the terminal device.

FIG. 7 shows a schematic block diagram corresponding to the second embodiment. Among them, CORESET1 and COSRESET2 are the two CORESETs configured by the network device to the terminal device. Among them, CORESET1 is associated with CSS1 and USS1, and CORESET2 is associated with CSS2 and USS2. The terminal device determines the closed-loop power adjustment factor of PUCCH1 according to the PUCCH TPC command in the DCI format 2_2 detected by CSS1, where PUCCH1 is used to carry the HARQ-ACK information 1 of the PDSCH scheduled by the DCI format 1_1 detected by USS1. Similarly, in CORESET2, the terminal device determines the closed-loop power adjustment factor of PUCCH2 according to the PUCCH TPC command in DCI format 2_2 detected by CSS2, where PUCCH2 is used to carry the HARQ-ACK of the PDSCH scheduled by the DCI format 1_0 detected by USS2 Information 2.

Embodiment 3: The network device transmits the first DCI including the TPC command field, and the TPC command field is used to determine the transmission power of the uplink signal corresponding to the first identifier associated with the TPC command field. The terminal device determines the transmit power of the uplink signal corresponding to the first identifier associated with the TPC command field according to the TPC command field included in the detected first DCI.

In this embodiment, a first identifier may specifically adopt one of the following definitions:

(1) ID used to identify a terminal device panel. Specifically, the terminal device can report the number of panels configured by itself through the UE capabilities, where each panel corresponds to a panel ID. For example, if the terminal device reports 4 panels, the panel ID corresponding to each panel can be {0,1,2,3} respectively. At this time, the uplink signal corresponding to the panel ID is the uplink signal transmitted on the panel. If two uplink signals are transmitted on the same panel, it can be considered that they correspond to the same panel ID.

(2) The ID of an SRS resource set. Specifically, if one SRS resource set corresponds to SRS transmission on a panel, the ID of the SRS resource set can be used as the ID to identify the panel. Among them, the SRS resource collection and the panel do not need to have a one-to-one correspondence. At this time, the uplink signal corresponding to the first identifier may be an uplink signal transmitted using the same panel as the SRS resource set identified by the ID.

(3) The ID of an SRS resource. Specifically, if each SRS resource corresponds to SRS transmission on a panel, the ID of the SRS resource can be used as the ID to identify the panel. Among them, SRS resources and panels do not need to have a one-to-one correspondence. At this time, the uplink signal corresponding to the first identifier may be an uplink signal transmitted using the same panel as the SRS resource identified by the ID.

(4) The ID of a PUCCH resource. Specifically, if different PUCCH resources can be transmitted on different panels, the ID of the PUCCH resource can be used as the ID for identifying the panel. At this time, the uplink signal corresponding to the first identifier may be an uplink signal transmitted using the same panel as the PUCCH resource identified by the ID. Further, the first identifier may also be an ID of a PUCCH resource set (PUCCH-resourceSet).

(5) An ID of space-related information. If the signals transmitted on different panels are configured with different space-related information, the ID of the space-related information can be used as the panel ID. The spatial related information here may be SRS spatial related information (SRS-SpatialRelationInfo) or PUCCH spatial related information (PUCCH-SpatialRelationInfo). At this time, the uplink signal corresponding to the first identifier may be the uplink signal configured with the spatial related information.

(6) The ID of a CSI-RS resource. When the beam correspondence is established, the transmission beam of the uplink signal transmitted on a panel can be determined by the receiving beam of the CSI-RS resource. At this time, the ID of the CSI-RS resource can be used as the ID to identify the panel. At this time, the uplink signal corresponding to the first identifier may be an uplink signal that uses the receiving panel of the CSI-RS resource identified by the ID as the sending panel.

(7) An SSB index. When the beam correspondence is established, the sending beam of a signal on a panel can be determined by the receiving beam of the SSB, so the index of the SSB can be used as the ID of the panel. At this time, the uplink signal corresponding to the first identifier may be the receiving panel of the SSB identified by the ID as the uplink signal for sending the panel.

Based on the definition of the first identifier above, the terminal device can determine a panel of the terminal device according to the first terminal device associated with the TPC command field, and determine the transmit power of the uplink signal transmitted on the panel based on the TPC command in the TPC command field, so as to achieve Each panel has independent power control to achieve more accurate uplink power control.

Specifically, the corresponding relationship between the first identifier and the uplink signal may be one of the following:

(1) If the uplink signal is PUSCH, the first identifier is indicated by scheduling the DCI of the PUSCH, for example, the first identifier may be indicated by a special information field in the DCI, or the first identifier may be indicated by the SRI indication field. Indicate the first identifier, or reuse other information fields. For example, if the SRI indication field in the DCI indicates an SRS resource, the ID of the SRS resource may be used as the first identifier, or the SRI index value indicated by the SRI indication field may be directly used as the first identifier.

(2) If the uplink signal is an aperiodic SRS, the first identifier may be indicated by triggering the DCI of the aperiodic SRS, for example, the first identifier may be indicated while indicating the SRS resource set through trigger signaling. , Or use the ID of the aperiodic SRS resource set indicated by the trigger signaling as the first identifier. Table 1 shows an example.

Table 1

(3) The uplink signal is an SRS resource set with an SRS resource set ID equal to the first identifier. Specifically, each SRS resource set is configured with its own SRS resource set ID (high-layer parameter SRS-ResourceSetId) through high-layer signaling. It can also be said that the uplink signal is an SRS transmitted on an SRS resource set whose SRS resource set ID is equal to the first identifier.

(4) The uplink signal is an SRS resource whose SRS resource ID is the first identifier. Specifically, each SRS resource is configured with its own SRS resource ID (high-layer parameter SRS-ResourceId) through high-layer signaling. It can also be said that the uplink signal is an SRS transmitted on an SRS resource with an SRS resource ID equal to the first identifier.

(5) Configure the upper layer parameter of the uplink signal to indicate the first identifier. For example, if the uplink signal is PUSCH, the first identifier may be indicated through the configuration parameter set of PUSCH (high-layer parameter PUSCH-config). For another example, if the uplink signal is a PUCCH, the first identifier can be indicated by configuring the high-level parameter of the PUCCH resource, for example, the PUCCH resource ID or the PUCCH resource set ID in the high-level parameter is used as the first identifier, Or configure the first identifier for each PUCCH resource or each PUCCH resource set through high-layer signaling. For another example, if the uplink signal is an SRS, the first identifier may be indicated by configuring the SRS resource or the high-level parameter of the SRS resource set. For example, the SRS resource ID or SRS resource set ID may be directly used as the first identifier, or the first identifier may be used as a parameter to indicate in the SRS resource configuration (high-level parameter SRS-Resource) or SRS resource set configuration (high-level parameter SRS-ResourceSet) .

(6) The space related information of the uplink signal indicates the first identifier. Specifically, the spatial correlation parameter is used to indicate the beam used for uplink signal transmission, for example, SRS-SpatialRelationInfo or PUCCH-SpatialRelationInfo. At this time, the terminal device may be instructed to obtain the reference signal used for the beam, and the corresponding first identifier may be indicated. In addition, the first identifier may also be an existing parameter in the spatial related information, such as SRS-SpatialRelationInfoID or PUCCH-SpatialRelationInfoID, or the CSI-RS resource ID/SRS resource ID/SSB index indicated in the spatial related information .

(7) The first identifier is indicated in the parameter of CORESET where the DCI for scheduling the uplink signal is located. Specifically, a first identifier may be indicated in each CORESET, and when the terminal device detects a DCI scheduling an uplink signal in this CORESET, the uplink signal scheduled by the DCI is the uplink signal corresponding to the first identifier. If the CORESET is used to schedule multiple uplink signals, these multiple uplink signals all correspond to the first identifier.

(8) The first identifier is indicated in a parameter of the search space where the DCI of the uplink signal is scheduled. Specifically, a first identifier may be indicated in each search space. When the terminal detects a DCI scheduling an uplink signal in this search space, the uplink signal scheduled by the DCI is the uplink signal corresponding to the first identifier. .

(9) Transmit the uplink signal through the panel corresponding to the first identifier. Specifically, the first identifier is used to identify a panel of a terminal, and all uplink signals transmitted on the panel can be considered as uplink signals corresponding to the first identifier. At this time, these uplink signals all need to use the TPC command for closed-loop power control.

In this embodiment, the network device may independently configure a corresponding first identifier for each uplink signal of the terminal device.

Optionally, the first DCI may include multiple TPC command fields. Specifically, the first DCI includes multiple terminal devices or respective TPC command fields on multiple carriers, and the network device notifies the terminal device through high-level signaling of the TPC command field belonging to a certain terminal device among the multiple TPC command fields . For example, the terminal device can determine its own TPC command field through the TPC index indicated by the network device.

Optionally, the first identifier associated with a TPC command field may be indicated in the TPC command field, as shown in FIG. 8. Or a first identifier associated with a TPC command domain may be indicated in the first DCI, as shown in FIG. 9. Wherein, each TPC command domain can independently configure the first identifier. For example, in addition to the TPC command and possible closed-loop power control process indication information, each TPC command domain may also include indication information of a first identifier. In addition, multiple TPC command domains can share the same indication information of the first identifier. Alternatively, each DCI may contain only one indication information of the first identifier, and all TPC command fields included in the DCI share the same first identifier.

Specifically, the uplink signal is SRS or PUSCH or PUCCH. For example, if the DCI format of the first DCI is DCI format 2_2, the uplink signal is PUSCH or PUCCH; if the DCI format of the first DCI is DCI format 2_3, the uplink signal is SRS.

In this embodiment, the terminal device determines the closed-loop power control adjustment factor of the closed-loop power control process indicated in the TPC command field according to the TPC command in the TPC command field; and determines the closed-loop power control adjustment factor according to the closed-loop power control adjustment factor. The transmit power corresponding to the closed-loop power control process. When the uplink signal corresponding to the first identifier associated with the TPC command domain adopts the closed-loop power control process, the corresponding transmission power is used as the uplink transmission power.

The terminal device transmits the uplink signal according to the determined transmission power. The network device receives the uplink signal transmitted by the terminal device according to the determined transmission power.

Wherein, the terminal device may transmit the uplink signal on the panel determined according to the first identifier. For example, if the terminal device reports that 4 panels are configured, each first identifier indicated by the network device corresponds to a different panel. For example, the first identifier={0,1,2,3} can correspond to the first, respectively, of the terminal device. 2, 3, 4 panels.

It should be understood that, in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application The implementation process constitutes any limitation.

The signal transmission method according to the embodiment of the present application is described in detail above. The signal transmission apparatus according to the embodiment of the present application will be described below in conjunction with FIG. 10 to FIG. 15. The technical features described in the method embodiment are applicable to the following device implementation example.

FIG. 10 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 10, the terminal device 400 includes:

The transceiver unit 410 is configured to receive first downlink control information DCI in the first search space, where the first DCI includes a first transmission power control TPC command field;

The processing unit 410 is configured to determine the transmission power of the first uplink signal according to the first TPC command field;

Wherein, the first uplink signal is an uplink signal scheduled by the second DCI received by the transceiver unit in the second search space, or the first uplink signal is a physical uplink signal used to carry first HARQ-ACK information The control channel PUCCH, the first HARQ-ACK information is the HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI received by the transceiver unit in the second search space, the first search space and the The second search space is associated with CORESET in the same control resource set or CORESET in the same CORESET group.

Optionally, in the embodiment of the present application, the first search space and the second search space are associated with a first CORESET or a CORESET in the first CORESRT group, and the transceiving unit is further configured to: receive data sent by a network device Configuration information of multiple CORESETs or multiple CORESET groups, the multiple CORESETs including the first CORESET, and the multiple CORESET groups including the first CORESET group.

Optionally, in this embodiment of the present application, the multiple CORESETs further include a second CORESET or the multiple CORESET groups further include a second CORESET group, and the transceiver unit is further configured to: The third DCI, where the third DCI includes a second TPC command field; the processing unit is further configured to: determine the transmission power of the second uplink signal according to the second TPC command field; wherein, the second uplink signal Is the uplink signal scheduled by the fourth DCI received by the transceiver unit in the fourth search space, or the second uplink signal is the PUCCH used to carry the second HARQ-ACK information, and the second HARQ-ACK information Is the HARQ-ACK information corresponding to the fourth DCI scheduled PDSCH received by the transceiver unit in the fourth search space, and the third search space and the fourth search space are associated with the second CORESET or associated with the first Two CORESET in the CORESET group.

Optionally, in the embodiment of the present application, each CORESET of the multiple CORESET is associated with a transmission point TRP and/or an antenna panel, or each CORESET group of the multiple CORESET groups is associated with a transmission Click on TRP and/or an antenna panel.

Optionally, in this embodiment of the present application, the first search space is a common search space.

Optionally, in the embodiment of the present application, the first uplink signal includes a sounding reference signal SRS, a physical uplink shared channel PUSCH, or a physical uplink control channel PUCCH.

Optionally, in this embodiment of the application, if the format of the first DCI is DCI format 2_2, the uplink signal includes PUSCH or PUCCH; or if the format of the first DCI is DCI format 2_3, the uplink The signal includes SRS.

Optionally, in the embodiment of the present application, the format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3.

Optionally, in the embodiment of the present application, the processing unit is specifically configured to: determine a closed-loop power control adjustment factor according to the first TPC command field; and determine the first uplink power control adjustment factor according to the closed-loop power control adjustment factor The transmit power of the signal.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are used to implement the terminal in the method of FIG. For the sake of brevity, the corresponding process of the equipment will not be repeated here.

FIG. 11 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in FIG. 11, the terminal device 500 includes:

The transceiver unit 510 is configured to receive a transmission power control TPC command field sent by a network device, where the TPC command field has an association relationship with the first identifier;

The processing unit 520 is configured to determine the transmission power of the first uplink signal corresponding to the first identifier according to the TPC command field.

Optionally, in this embodiment of the present application, the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals: scheduling downlink control information DCI includes an uplink signal of indication information of the first identifier; The identification ID of the sounding reference signal SRS resource set is equal to the SRS transmitted on the SRS resource set of the first identification; the identification ID of the sounding reference signal SRS resource is equal to the SRS transmitted on the SRS resource of the first identification; Configure the uplink signal in the high-level parameters of the uplink signal including the indication information of the first identifier; in the uplink signal corresponding to the space related information including the indication information of the first identifier; in the configuration parameter of the control resource set CORESET where the DCI is scheduled The uplink signal including the indication information of the first identifier; the uplink signal including the indication information of the first identifier in the configuration parameters of the search space where the DCI is scheduled; the uplink signal transmitted by the antenna panel determined by the first identifier .

Optionally, in the embodiment of the present application, the TPC command field has an association relationship with a first identifier, including: the first identifier is carried in the TPC command field; or the first identifier is carried in the first identifier. In the DCI, the first DCI includes the TPC command field.

Optionally, in the embodiment of the present application, the processing unit is specifically configured to: determine a closed-loop power control adjustment factor according to the TPC command field; and determine the value of the first uplink signal according to the closed-loop power control adjustment factor Transmission power.

Optionally, in the embodiment of the present application, the processing unit is further configured to: determine the first antenna panel according to the first identifier; the transceiving unit is further configured to: transmit on the first antenna panel The first uplink signal.

Optionally, in this embodiment of the present application, the first identifier is the identification ID used to identify the antenna panel of the terminal device, the ID of the sounding reference signal SRS resource set, the ID of the sounding reference signal SRS resource, and the spatial correlation The ID of the information, the ID of the channel state information reference signal CSI-RS resource, or the index of the synchronization signal block SSB.

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are to implement the terminal device in the method of FIG. For the sake of brevity, the corresponding process of the equipment will not be repeated here.

FIG. 12 shows a schematic block diagram of a network device 600 according to an embodiment of the present application. As shown in FIG. 12, the network device 600 includes:

The transceiver unit 610 is configured to transmit first downlink control information DCI to a terminal device in a first search space, where the first DCI includes a first transmission power control TPC command field, and the first TPC command field is used for the The terminal device determines the transmission power of the first uplink signal;

Wherein, the first uplink signal is an uplink signal scheduled by the second DCI transmitted in the second search space, or the first uplink signal is a physical uplink control channel PUCCH used to carry first HARQ-ACK information, The first HARQ-ACK information is HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI transmitted in the second search space, and the first search space and the second search space are associated with the same Control resource set CORESET or CORESET in the same CORESET group.

Optionally, in the embodiment of the present application, the first search space and the second search space are associated with a first CORESET or a CORESET in the first CORESRT group, and the transceiver unit is further configured to: Sending configuration information of multiple CORESETs, the multiple CORESETs including the first CORESET, and each CORESET of the multiple CORESETs is associated with a transmission point TRP and/or an antenna panel, or the multiple CORESET groups Including the first CORESET group, each CORESET group of the multiple CORESET groups is associated with a transmission point TRP and/or an antenna panel.

It should be understood that the network device 600 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 600 are to implement the network in the method of FIG. For the sake of brevity, the corresponding process of the equipment will not be repeated here.

FIG. 13 shows a schematic block diagram of a network device 700 according to an embodiment of the present application. As shown in FIG. 13, the network device 700 includes:

The transceiver unit 710 is configured to send a transmission power control TPC command field to a terminal device, where the first TPC command field has an association relationship with a first identifier, and the TPC command field is used to determine the first uplink corresponding to the first identifier. The transmit power of the signal.

Optionally, in this embodiment of the application, the TPC command field has an association relationship with the first identifier, including: the first identifier is carried in the TPC command field; or the first identifier is carried in the first download In the row control information DCI, the first DCI includes the TPC command field.

It should be understood that the network device 700 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 700 are to implement the network in the method of FIG. For the sake of brevity, the corresponding process of the equipment will not be repeated here.

As shown in FIG. 14, an embodiment of the present application also provides a terminal device 800. The terminal device 800 may be the terminal device 500 in FIG. 10 and the terminal device 600 in FIG. The content of the terminal device corresponding to each method in Figure 6. The terminal device 800 shown in FIG. 14 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 14, the terminal device 800 may further include a memory 820. Wherein, the processor 810 can call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.

The memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.

Optionally, as shown in FIG. 14, the terminal device 800 may also include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

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

Optionally, the terminal device 800 may be a terminal device of an embodiment of the present application, and the terminal device 800 may implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For brevity, details are not described herein again.

In a specific implementation manner, the transceiver unit in the terminal device 400 may be implemented by the transceiver 830 in FIG. 14. The processing unit in the terminal device 400 may be implemented by the processor 810 in FIG. 14. The transceiving unit in the terminal device 500 may be implemented by the transceiver 830 in FIG. 14. The processing unit in the terminal device 500 may be implemented by the processor 810 in FIG. 14.

As shown in FIG. 15, the embodiment of the present application also provides a network device 900. The network device 800 may be the network device 600 in FIG. 12 and the network device 700 in FIG. Figure 6 Contents of network equipment corresponding to each method. The network device 900 shown in FIG. 15 includes a processor 910, and the processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 15, the network device 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.

The memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.

Optionally, as shown in FIG. 15, the network device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of antennas may be one or more.

Optionally, the network device 900 may be a network device of an embodiment of the present application, and the network device 900 may implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For brevity, details are not described herein again.

In a specific implementation manner, the transceiver unit in the network device 600 may be implemented by the transceiver 930 in FIG. 15. The transceiving unit in the network device 700 may be implemented by the transceiver 930 in FIG. 15.

FIG. 16 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 1000 shown in FIG. 16 includes a processor 1010, and the processor 1010 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 16, the chip 1000 may further include a memory 1020. The processor 1010 can call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device independent of the processor 1010, or it may be integrated in the processor 1010.

Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 can control the input interface 1030 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 can control the output interface 1040 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in the various methods of the embodiment of the present application. For brevity, details are not described herein again.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in the various methods of the embodiment of the present application. For brevity, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

FIG. 17 is a schematic block diagram of a communication system 2000 provided by an embodiment of the present application. As shown in FIG. 16, the communication system 2000 includes a terminal device 2010 and a network device 2020.

Wherein, the terminal device 2010 can be used to implement the corresponding function implemented by the terminal device in the above method, and the network device 2020 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. 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.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

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

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , I won’t repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Repeat it again.

Optionally, the computer program product can be applied to the terminal device in the embodiment of this application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application. For the sake of brevity, I will not repeat them here.

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

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

Optionally, the computer program can be applied to the terminal device in the embodiment of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for transmitting signals, characterized in that it comprises:

The terminal device detects the first downlink control information DCI in the first search space, where the first DCI includes a first transmission power control TPC command field;

The terminal device determines the transmission power of the first uplink signal according to the first TPC command field;

Wherein, the first uplink signal is the uplink signal scheduled by the second DCI detected in the second search space, or the first uplink signal is used to carry the first hybrid automatic repeat request HARQ-response ACK information Physical uplink control channel PUCCH, the first HARQ-ACK information is the HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI detected in the second search space, the first search space and the second The second search space is associated with the same control resource set CORESET or CORESET in the same CORESET group.
The method according to claim 1, wherein the first search space and the second search space are associated with a first CORESET or a CORESET in the first CORESRT group, and the method further comprises:

The terminal device receives configuration information of multiple CORESETs or multiple CORESET groups sent by a network device, the multiple CORESETs include the first CORESET, and the multiple CORESET groups include the first CORESET group.
The method according to claim 2, wherein the plurality of CORESETs further comprises a second CORESET or the plurality of CORESET groups further comprises a second CORESET group, and the method further comprises:

The terminal device detects a third DCI in the third search space, and the third DCI includes a second TPC command field;

The terminal device determines the transmission power of the second uplink signal according to the second TPC command field;

Wherein, the second uplink signal is an uplink signal scheduled by the fourth DCI detected in the fourth search space, or the second uplink signal is a PUCCH used to carry second HARQ-ACK information, and the second The HARQ-ACK information is the HARQ-ACK information corresponding to the PDSCH scheduled by the fourth DCI detected in the fourth search space. The third search space and the fourth search space are associated with the second CORESET or associated with the first CORESET. Two CORESET in the CORESET group.
The method according to claim 2 or 3, wherein each CORESET in the plurality of CORESETs is associated with a transmission point TRP and/or an antenna panel, or each CORESET in the plurality of CORESET groups The group is associated with a transmission point TRP and/or an antenna panel.
The method according to any one of claims 1 to 4, wherein the first search space is a common search space.
The method according to any one of claims 1 to 5, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH, or a physical uplink control channel PUCCH.
The method according to claim 6, wherein:

If the format of the first DCI is DCI format 2_2, the first uplink signal includes PUSCH or PUCCH; or

If the format of the first DCI is DCI format 2_3, the first uplink signal includes SRS.
The method according to any one of claims 1 to 7, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1 or DCI format 2_3.
The method according to any one of claims 1 to 8, wherein the terminal device determining the transmission power of the first uplink signal according to the first TPC command field comprises:

Determining, by the terminal device, a closed-loop power control adjustment factor according to the first TPC command field;

The terminal device determines the transmission power of the first uplink signal according to the closed-loop power control adjustment factor.
A method for transmitting signals, characterized in that it comprises:

The terminal device receives a transmission power control TPC command field sent by the network device, where the TPC command field has an association relationship with the first identifier;

The terminal device determines the transmit power of the first uplink signal corresponding to the first identifier according to the TPC command field.
The method according to claim 10, wherein the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals:

Scheduling downlink control information DCI includes an uplink signal of the indication information of the first identifier;

The identification ID of the sounding reference signal SRS resource set is equal to the SRS transmitted on the SRS resource set of the first identification;

The identification ID of the sounding reference signal SRS resource is equal to the SRS transmitted on the SRS resource of the first identification;

The uplink signal including the indication information of the first identifier in the high-level parameters used to configure the uplink signal;

Corresponding to the uplink signal including the indication information of the first identifier in the spatial related information;

The configuration parameter of the control resource set CORESET where the DCI is scheduled includes the uplink signal indicating the indication information of the first identifier;

The configuration parameter of the search space where the DCI is scheduled includes the uplink signal of the indication information of the first identifier;

The uplink signal transmitted by the antenna panel determined by the first identifier.
The method according to claim 10 or 11, wherein the TPC command field has an association relationship with the first identifier, comprising:

The first identifier is carried in the TPC command field; or

The first identifier is carried in a first DCI, and the first DCI includes the TPC command field.
The method according to any one of claims 10 to 12, wherein the terminal device determining the transmission power of the first uplink signal according to the TPC command field comprises:

The terminal device determines the closed-loop power control adjustment factor according to the TPC command field;

The terminal device determines the transmission power of the first uplink signal according to the closed-loop power control adjustment factor.
The method according to any one of claims 10 to 13, wherein the method further comprises:

The terminal device determines the first antenna panel according to the first identifier;

The terminal device transmits the first uplink signal on the first antenna panel.
The method according to any one of claims 10 to 14, wherein the first identification is an identification ID used to identify an antenna panel of the terminal device, an ID of a sounding reference signal SRS resource set, and a sounding reference The ID of the signal SRS resource, the ID of space related information, the ID of the channel state information reference signal CSI-RS resource, or the index of the synchronization signal block SSB.
The method according to any one of claims 10 to 15, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
A method for transmitting signals, characterized in that it comprises:

The network device transmits first downlink control information DCI to the terminal device in the first search space, where the first DCI includes a first transmission power control TPC command field, and the first TPC command field is used by the terminal device to determine the first Transmission power of an uplink signal;

Wherein, the first uplink signal is an uplink signal scheduled by the second DCI transmitted in the second search space, or the first uplink signal is used to carry the first hybrid automatic repeat request HARQ-response ACK information Physical uplink control channel PUCCH, the first HARQ-ACK information is the HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI transmitted in the second search space, the first search space and the second The second search space is associated with the same control resource set CORESET or CORESET in the same CORESET group.
The method according to claim 17, wherein the first search space and the second search space are associated with a first CORESET or a CORESET in the first CORESRT group, and the method further comprises:

The network device sends configuration information of multiple CORESETs or multiple CORESET groups to the terminal device, where the multiple CORESETs include the first CORESET, and each CORESET of the multiple CORESETs is associated with a transmission point TRP and /Or one antenna panel, or the plurality of CORESET groups include the first CORESET group, and each CORESET group of the plurality of CORESET groups is associated with a transmission point TRP and/or an antenna panel.
The method according to claim 17 or 18, wherein the first search space is a common search space.
The method according to any one of claims 17 to 19, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
The method according to claim 20, wherein:

If the format of the first DCI is DCI format 2_2, the uplink signal includes PUSCH or PUCCH; or

If the format of the first DCI is DCI format 2_3, the uplink signal includes SRS.
The method according to any one of claims 17 to 21, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1 or DCI format 2_3.
A method for transmitting signals, characterized in that it comprises:

The network device sends a transmission power control TPC command field to the terminal device, where the TPC command field has an association relationship with a first identifier, and the TPC command field is used to determine the transmission power of the first uplink signal corresponding to the first identifier.
The method according to claim 23, wherein the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals:

Scheduling downlink control information DCI includes an uplink signal of the indication information of the first identifier;

The identification ID of the sounding reference signal SRS resource set is equal to the SRS transmitted on the SRS resource set of the first identification;

The identification ID of the sounding reference signal SRS resource is equal to the SRS transmitted on the SRS resource of the first identification;

The uplink signal including the indication information of the first identifier in the high-level parameters used to configure the uplink signal;

Corresponding to the uplink signal including the indication information of the first identifier in the spatial related information;

The configuration parameter of the control resource set CORESET where the DCI is scheduled includes the uplink signal indicating the indication information of the first identifier;

The configuration parameter of the search space where the DCI is scheduled includes the uplink signal of the indication information of the first identifier;

The uplink signal transmitted by the antenna panel determined by the first identifier.
The method according to claim 23 or 24, wherein the TPC command field has an association relationship with the first identifier, comprising:

The first identifier is carried in the TPC command field; or

The first identifier is carried in the first downlink control information DCI, and the first DCI includes the TPC command field.
The method according to any one of claims 23 to 25, wherein the first identification is an identification ID for identifying an antenna panel of the terminal device, an ID of a sounding reference signal SRS resource set, and a sounding reference The ID of the signal SRS resource, the ID of space related information, the ID of the channel state information reference signal CSI-RS resource, or the index of the synchronization signal block SSB.
The method according to any one of claims 23 to 26, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
A terminal device, characterized in that it comprises:

A transceiver unit, configured to receive first downlink control information DCI in a first search space, where the first DCI includes a first transmission power control TPC command field;

A processing unit, configured to determine the transmission power of the first uplink signal according to the first TPC command field;

Wherein, the first uplink signal is the uplink signal scheduled by the second DCI received by the transceiver unit in the second search space, or the first uplink signal is used to carry the first hybrid automatic repeat request HARQ- The physical uplink control channel PUCCH that responds to ACK information, the first HARQ-ACK information is the HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI received by the transceiver unit in the second search space, and The first search space and the second search space are associated with the same control resource set CORESET or CORESET in the same CORESET group.
The terminal device according to claim 28, wherein the first search space and the second search space are associated with a first CORESET or a CORESET in the first CORESRT group, and the transceiver unit is further configured to:

Receiving configuration information of multiple CORESETs or multiple CORESET groups sent by a network device, where the multiple CORESETs include the first CORESET.
The terminal device according to claim 29, wherein the plurality of CORESETs further comprises a second CORESET or the plurality of CORESET groups further comprises a second CORESET group,

The transceiver unit is also used for:

A third DCI is received in the third search space, where the third DCI includes a second TPC command field;

The processing unit is also used for:

Determine the transmission power of the second uplink signal according to the second TPC command field;

Wherein, the second uplink signal is an uplink signal scheduled by the fourth DCI received by the transceiver unit in the fourth search space, or the second uplink signal is a PUCCH used to carry second HARQ-ACK information, The second HARQ-ACK information is HARQ-ACK information corresponding to the PDSCH scheduled by the fourth DCI received by the transceiver unit in the fourth search space, and the third search space and the fourth search space are associated with the The second CORESET or the CORESET in the second CORESET group is associated.
The terminal device according to claim 29 or 30, wherein each CORESET in the plurality of CORESET is associated with a transmission point TRP and/or an antenna panel, or each of the plurality of CORESET groups The CORESET group is associated with a transmission point TRP and/or an antenna panel.
The terminal device according to any one of claims 28 to 31, wherein the first search space is a public search space.
The terminal device according to any one of claims 28 to 32, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH, or a physical uplink control channel PUCCH.
The terminal device according to claim 33, wherein:

If the format of the first DCI is DCI format 2_2, the uplink signal includes PUSCH or PUCCH; or

If the format of the first DCI is DCI format 2_3, the uplink signal includes SRS.
The terminal device according to any one of claims 28 to 34, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1 or DCI format 2_3.
The terminal device according to any one of claims 28 to 35, wherein the processing unit is specifically configured to:

Determining a closed-loop power control adjustment factor according to the first TPC command field;

Determining the transmission power of the first uplink signal according to the closed-loop power control adjustment factor.
A terminal device, characterized in that it comprises:

A transceiver unit, configured to receive a transmission power control TPC command field sent by a network device, where the TPC command field has an association relationship with the first identifier;

The processing unit is configured to determine the transmit power of the first uplink signal corresponding to the first identifier according to the TPC command field.
The terminal device according to claim 37, wherein the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals:

Scheduling downlink control information DCI includes an uplink signal of the indication information of the first identifier;

The identification ID of the sounding reference signal SRS resource set is equal to the SRS transmitted on the SRS resource set of the first identification;

The identification ID of the sounding reference signal SRS resource is equal to the SRS transmitted on the SRS resource of the first identification;

The uplink signal including the indication information of the first identifier in the high-level parameters used to configure the uplink signal;

Corresponding to the uplink signal including the indication information of the first identifier in the spatial related information;

The configuration parameter of the control resource set CORESET where the DCI is scheduled includes the uplink signal indicating the indication information of the first identifier;

The configuration parameter of the search space where the DCI is scheduled includes the uplink signal of the indication information of the first identifier;

The uplink signal transmitted by the antenna panel determined by the first identifier.
The terminal device according to claim 37 or 38, wherein the TPC command field has an association relationship with the first identifier, and comprises:

The first identifier is carried in the TPC command field; or

The first identifier is carried in a first DCI, and the first DCI includes the TPC command field.
The terminal device according to any one of claims 37 to 39, wherein the processing unit is specifically configured to:

Determine the closed-loop power control adjustment factor according to the TPC command field;

Determining the transmission power of the first uplink signal according to the closed-loop power control adjustment factor.
The terminal device according to any one of claims 37 to 40, wherein the processing unit is further configured to:

Determine the first antenna panel according to the first identifier;

The transceiver unit is also used for:

On the first antenna panel, the first uplink signal is transmitted.
The terminal device according to any one of claims 37 to 41, wherein the first identifier is an identification ID used to identify an antenna panel of the terminal device, an ID of a sounding reference signal SRS resource set, a sounding Reference signal SRS resource ID, space related information ID, channel state information reference signal CSI-RS resource ID, or synchronization signal block SSB index.
The terminal device according to any one of claims 37 to 42, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH, or a physical uplink control channel PUCCH.
A network device, characterized by comprising:

The transceiver unit is configured to transmit first downlink control information DCI to a terminal device in a first search space, where the first DCI includes a first transmission power control TPC command field, and the first TPC command field is used for the terminal The device determines the transmission power of the first uplink signal;

Wherein, the first uplink signal is an uplink signal scheduled by the second DCI transmitted in the second search space, or the first uplink signal is used to carry the first hybrid automatic repeat request HARQ-response ACK information Physical uplink control channel PUCCH, the first HARQ-ACK information is the HARQ-ACK information corresponding to the physical downlink shared channel PDSCH scheduled by the second DCI transmitted in the second search space, the first search space and the second The second search space is associated with the same control resource set CORESET or CORESET in the same CORESET group.
The network device according to claim 44, wherein the first search space and the second search space are associated with a first CORESET or a CORESET in the first CORESRT group, and the transceiver unit is further configured to:

Send configuration information of multiple CORESETs or multiple CORESET groups to the terminal device, where the multiple CORESETs include the first CORESET, and each CORESET of the multiple CORESETs is associated with a transmission point TRP and/or an antenna Panel, or, the plurality of CORESET groups include the first CORESET group, and each CORESET group of the plurality of CORESET groups is associated with a transmission point TRP and/or an antenna panel.
The network device according to claim 44 or 45, wherein the first search space is a public search space.
The network device according to any one of claims 44 to 46, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH, or a physical uplink control channel PUCCH.
The network device according to claim 47, wherein:

If the format of the first DCI is DCI format 2_2, the uplink signal includes PUSCH or PUCCH; or

If the format of the first DCI is DCI format 2_3, the uplink signal includes SRS.
The network device according to any one of claims 44 to 48, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3.
A network device, characterized by comprising:

The transceiver unit is configured to send a transmission power control TPC command field to a terminal device, where the TPC command field has an association relationship with a first identifier, and the TPC command field is used to determine the transmission of the first uplink signal corresponding to the first identifier power.
The network device according to claim 50, wherein the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals:

Scheduling downlink control information DCI includes an uplink signal of the indication information of the first identifier;

The identification ID of the sounding reference signal SRS resource set is equal to the SRS transmitted on the SRS resource set of the first identification;

The identification ID of the sounding reference signal SRS resource is equal to the SRS transmitted on the SRS resource of the first identification;

The uplink signal including the indication information of the first identifier in the high-level parameters used to configure the uplink signal;

Corresponding to the uplink signal including the indication information of the first identifier in the spatial related information;

The configuration parameter of the control resource set CORESET where the DCI is scheduled includes the uplink signal indicating the indication information of the first identifier;

The configuration parameter of the search space where the DCI is scheduled includes the uplink signal of the indication information of the first identifier;

The uplink signal transmitted by the antenna panel determined by the first identifier.
The network device according to claim 50 or 51, wherein the TPC command field has an association relationship with the first identifier, and comprises:

The first identifier is carried in the TPC command field; or

The first identifier is carried in the first downlink control information DCI, and the first DCI includes the TPC command field.
The network device according to any one of claims 50 to 52, wherein the first identifier is an identification ID used to identify an antenna panel of the terminal device, an ID of a sounding reference signal SRS resource set, and a sounding Reference signal SRS resource ID, space related information ID, channel state information reference signal CSI-RS resource ID, or synchronization signal block SSB index.
The network device according to any one of claims 50 to 53, wherein the first uplink signal comprises a sounding reference signal SRS, a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 9 The method described in one item.
A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 10 to 16 The method described in one item.
A network device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 17 to 22 The method described in one item.
A network device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 23 to 27 The method described in one item.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 9.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 10 to 16.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 17 to 22.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 23 to 27.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 9.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 10 to 16.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 17 to 22.
A computer-readable storage medium, characterized in that it is used for storing a computer program that enables a computer to execute the method according to any one of claims 23 to 27.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 1 to 9.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 10 to 16.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 17 to 22.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 23 to 27.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 9.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 10 to 16.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 17 to 22.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 23 to 27.