CN112970294B

CN112970294B - Signal transmission method, terminal equipment and network equipment

Info

Publication number: CN112970294B
Application number: CN201980073449.1A
Authority: CN
Inventors: 陈文洪; 史志华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2023-01-31
Anticipated expiration: 2039-04-08
Also published as: WO2020206581A1; CN112970294A

Abstract

The embodiment of the application discloses a method for transmitting signals, terminal equipment and network equipment, wherein the method comprises the following steps: the terminal equipment detects first DCI in a first search space, wherein the first DCI comprises a first TPC command domain; the terminal equipment determines the transmission power of a first uplink signal according to the first TPC command domain; 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 a second search space, and the first search space and the second search space are associated with the same CORESET or the CORESET in the same CORESET group. The method, the terminal device and the network device of the embodiment of the application can be well matched with uplink signal transmission in uplink incoherent transmission, and are beneficial to improving the spectrum efficiency of uplink transmission, so that the transmission performance of uplink signals is improved.

Description

Method for transmitting signal, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a method for transmitting signals, terminal equipment and network equipment.

Background

In the related art, the terminal device may adjust the transmission Power of the uplink signal through a Transmit Power Control (TPC) command field configured by the network device. For example, the terminal device determines the transmission power of a Physical Uplink Shared Channel (PUSCH)/Physical Uplink Control Channel (PUCCH) through a TPC command field carried by a Downlink Control Information (DCI) format (format) 2_2, or determines the transmission power of a Sounding Reference Signal (SRS) through a 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.

Disclosure of Invention

The embodiment of the application provides a method for transmitting signals, terminal equipment and network equipment, which can be well matched with uplink signal transmission in uplink incoherent transmission, and are beneficial to improving the spectrum efficiency of uplink transmission, so that the transmission performance of the uplink signals is improved.

In a first aspect, a method for transmitting a signal is provided, the method including: the terminal equipment detects first downlink control information DCI in a first search space, wherein the first DCI comprises a first Transmission Power Control (TPC) command field; the terminal equipment determines the transmission power of a first uplink signal according to the first TPC command domain; 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 physical uplink control channel PUCCH used for carrying first HARQ-ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to a physical downlink shared channel PDSCH scheduled by the second DCI detected in a 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.

In a second aspect, a method of transmitting a signal is provided, the method comprising: the terminal equipment receives a Transmission Power Control (TPC) command domain sent by the network equipment, wherein the TPC command domain has an association relation with the first identifier; and the terminal equipment determines the transmission power of the first uplink signal corresponding to the first identifier according to the TPC command domain.

In a third aspect, a method for transmitting a signal is provided, the method including: the method comprises the steps that network equipment transmits first Downlink Control Information (DCI) to terminal equipment in a first search space, wherein the first DCI comprises a first Transmission Power Control (TPC) command domain, and the first TPC command domain is used for determining the transmission power of a first uplink signal by the terminal equipment; the first uplink signal is an uplink signal scheduled by second DCI transmitted in a second search space, or the first uplink signal is a physical uplink control channel PUCCH used for carrying Hybrid Automatic Repeat Request (HARQ) -acknowledge ACK (ACK) information, the first HARQ-ACK information is HARQ-ACK information corresponding to a PDSCH of a physical downlink shared channel 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.

In a fourth aspect, a method of transmitting a signal is provided, the method comprising: the network equipment sends a Transmission Power Control (TPC) command field to the terminal equipment, the first TPC command field has an incidence relation with a first identifier, and the TPC command field is used for determining the sending power of a first uplink signal corresponding to the first identifier.

In a fifth aspect, a terminal device is provided, configured to perform the method in any one of the first aspect to the second aspect or each implementation manner thereof.

Specifically, the terminal device includes a functional module configured to execute the method in any one of the first aspect to the second aspect or in each implementation manner thereof.

A sixth aspect provides a network device configured to perform the method of any one of the third to fourth aspects or implementations thereof.

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

In a seventh aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in any one of the first aspect to the second aspect or each implementation manner thereof.

In an eighth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method of any one of the third aspect to the fourth aspect or each implementation manner thereof.

In a ninth aspect, there is provided a chip for implementing the method in any one of the first to fourth aspects or implementations thereof.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device on which the chip is installed performs the method in any one of the first to fourth aspects or the implementation manners thereof.

A tenth aspect provides a computer-readable storage medium for storing a computer program for causing a computer to perform the method of any one of the first to fourth aspects or implementations thereof.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to fourth aspects or implementations thereof.

In a twelfth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to fourth aspects or implementations thereof.

Through the technical scheme, downlink Control Information (DCI) corresponding to the uplink signal detected in different search spaces associated with the same Control Resource Set (CORESET) is associated with the DCI comprising the TPC command domain, or the DCI corresponding to the uplink signal detected in different search spaces associated with the CORESET in the same CORESET group is associated with the DCI comprising the TPC command domain, so that the sending power of the uplink signal can be determined according to the TPC command domain, the spectrum efficiency of uplink transmission in uplink incoherent transmission can be improved, and the transmission performance of the uplink signal can be improved.

Drawings

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

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

Fig. 3a and 3b show schematic diagrams of PUSCH and PUCCH transmission based on multiple pannel.

Fig. 4 is an interaction diagram of a method for transmitting a signal according to an embodiment of the present application.

Fig. 5 is another schematic interaction diagram of a method for transmitting a signal according to an embodiment of the present disclosure.

FIG. 6 is a flowchart illustrating a correspondence according to an embodiment.

FIG. 7 is a flow chart corresponding to the embodiment.

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

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

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

Fig. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a network device according to an embodiment of the present application.

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

Fig. 15 is another schematic block diagram of a network device according to an embodiment of the present application.

Fig. 16 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 17 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a long term evolution LTE System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD), a Universal Mobile telecommunications System (Universal Mobile telecommunications System, UMTS), a UMTS Worldwide Interoperability for Microwave Access (WiMAX) communication System, a New Radio (NR), a future 5G System, or the like.

In particular, the technical solution of the embodiment of the present application may be applied to various communication systems based on a non-orthogonal Multiple Access technology, such as a Sparse Code Multiple Access (SCMA) system, a Low Density Signature (LDS) system, and the like, and certainly the SCMA system and the LDS system may also be called other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a Multi-carrier transmission system using a non-Orthogonal multiple access technology, for example, an Orthogonal Frequency Division Multiplexing (OFDM) system using a non-Orthogonal multiple access technology, a Filter Bank Multi-carrier (FBMC), a General Frequency Division Multiplexing (GFDM), a Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) system, and the like.

Illustratively, a 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 referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network device gNB in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises 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), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, and the embodiments of the present invention are not limited thereto.

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

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

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. 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 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

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

where i is the index of a PUSCH transmission, and j is the open-loop power control parameter index (including the target power P) _{O_PUSCH，b，f，c} (j) And the path loss factor alpha _b，f，c (j))；q _d Is an index of a reference signal for performing path loss measurement for obtaining a path loss value PL _b，f，c (q _d ) And is also an open loop power control parameter; f. of _b，f，c (i, l) is the closed loop power control adjustment factor, where 1 is the closed loop power control procedure. The terminal equipment determines the closed loop power adjustment factor according to a TPC command field sent by a network side, wherein the TPC command field can search a space through UEThe DCI used for scheduling the PUSCH may also be carried through DCI format (format) 2_2 used for carrying a group TPC command field in a common search space.

In NR, the terminal apparatus determines a transmission beam of a scheduled PUSCH based on an SRS Resource Indicator (SRI) in DCI, and also determines a power control parameter for the PUSCH based on the SRI. Specifically, the network side may configure a plurality of SRI-PUSCH-PowerControl parameter domains in advance through Radio Resource Control (RRC) signaling, where each parameter domain corresponds to one SRI value, and the parameter domain includes a set of PUSCH power Control parameter configurations (e.g., j, q) corresponding to the SRI value _d ,1). When the values of the SRI indications are different, the power control parameter configuration in the corresponding parameter domain (SRI-PUSCH-PowerControl) is adopted to determine the transmission power of the currently scheduled PUSCH.

Similarly, the terminal device may 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.

The non-periodic SRS transmission is introduced into the NR system, and the network side can trigger the SRS transmission of the terminal through the uplink or downlink DCI. The trigger signaling for triggering the aperiodic SRS transmission can be carried by DCI for scheduling PUSCH/PDSCH in the UE-specific search space, or by DCI format 2_3 in the common search space. The DCI format 2_3 may be used to trigger aperiodic SRS transmission, and may also be used to configure a TPC command field of an SRS on a group of UEs or a group of carriers. And after receiving the aperiodic SRS triggering signaling, the terminal equipment transmits the SRS on the SRS resource set indicated by the triggering signaling.

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

where i is the index of a SRS transmission, q _s Is an open loop power control parameter index (including the target power P) _{O_SRS，b，f，c} (q _s ) And the path loss factor alpha _{SRS，b，f，c} (q _s ))；q _d Is an index of a reference signal for performing path loss measurement for obtaining a path loss value PL _b，f，c (q _d ) Is also an open loop power control parameter; h is _b，f，c (i, l) is a closed loop power control adjustment factor, where 1 is a closed loop power control procedure. Wherein q is _d And q is _s And configuring the configuration parameters of the SRS resource set to the terminal through a high-layer signaling. H if the SRS and PUSCH configured by the high-level signaling adopt the same power control process _b，f，c (i，l)＝f _b，f，c (i, l). If the SRS configured by the high-level signaling adopts an independent power control process, the network side indicates the TPC command field of the SRS of each terminal through DCI format 2_3 in the public search space, and the terminal determines a closed-loop power adjustment factor according to the TPC command field and is irrelevant to the closed-loop power adjustment factor of the PUSCH.

In the NR system, non-coherent Transmission of downlink and uplink based on a plurality of Transmission/reception points (TRPs) is introduced. The backhaul (backhaul) connection between the TRPs may be ideal or non-ideal, information interaction between the TRPs under the ideal backhaul can be performed rapidly and dynamically, and information interaction between the TRPs under the non-ideal backhaul can be performed only quasi-statically due to the larger time delay. In uplink non-coherent transmission, different TRPs can also independently schedule PUSCH transmission of the same terminal. Different PUSCH transmissions may be configured with independent transmission parameters such as beams, precoding matrix, number of layers, etc. The scheduled PUSCH transmissions may be transmitted in the same time slot or different time slots. If the terminal is scheduled two PUSCH transmissions simultaneously in the same time slot, it needs to determine how to transmit according to its own capability. If the terminal is configured with multiple antenna panels (panels) and supports PUSCH transmission on multiple panels simultaneously, the two PUSCHs can be transmitted simultaneously, and the PUSCHs transmitted on different panels are subjected to analog beamforming in alignment with corresponding TRPs, so that different PUSCHs are distinguished by a spatial domain, and uplink spectral efficiency is provided (as shown in fig. 2 a). If the terminal has only a single panel, or does not support simultaneous transmission of multiple panels, the PUSCH can only be transmitted on one panel (as shown in fig. 2 b). The DCI for scheduling the PUSCH transmitted by different TRPs may be carried by different CORESET or CORESET groups, that is, the network configures a plurality of CORESET or CORESET groups for the terminal, and each TRP is scheduled by using its own CORESET or CORESET group.

The terminal may have multiple panels for uplink transmission, one panel containing a set of physical antennas, each panel having an independent rf channel, and the panels are usually separated by some degree. Thus, a panel is also commonly referred to as an antenna group. The transmission of signals between the terminal and different TRPs may use different panels, as shown in fig. 3a and 3b, TRP1 performs PUSCH scheduling with the terminal through panel1, and TRP2 performs PUSCH scheduling with the terminal through panel 2. The terminal needs to notify the number of antenna panels configured on the network side in the capability report. Meanwhile, the terminal may need to notify the network side whether the terminal has the capability of transmitting signals on multiple antenna panels simultaneously. Because the channel conditions corresponding to different panels are different, different panels need to adopt different transmission parameters according to their respective channel information. In order to obtain these transmission parameters, different SRS resources need to be configured for different panels to obtain uplink channel information. For example, in order to perform uplink beam management, one SRS resource set may be configured for each panel, so that each panel performs beam management separately to determine an independent analog beam. In order to obtain precoding information for PUSCH transmission, one SRS resource set may be configured for each panel to obtain transmission parameters such as a beam, a precoding vector, and the number of transmission layers for PUSCH transmitted on the panel. Meanwhile, multi-panel transmission can also be applied to the PUCCH, that is, information carried by the PUCCH resource on the same PUCCH resource or the same time domain resource can be simultaneously sent to the network side through different panels. Wherein each panel can have its own panel ID for correlating different signals transmitted on the same panel, i.e., the terminal can consider that signals associated with the same panel ID need to be transmitted from the same panel.

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

Fig. 4 shows a schematic flow chart of a method 200 of transmitting a signal according to an embodiment of the present application. As shown in fig. 4, the method 200 may be implemented by an interaction between a terminal device and a network device, and specifically, the method 200 includes some or all of the following:

s210, the network device transmits a 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 a 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 a second search space, where the second DCI is used to schedule the first uplink signal, or the second DCI is used to schedule a Physical Downlink Shared Channel (PDSCH), and the second search space and the first search space are associated with the same CORESET or are associated with CORESETs in the same CORESET group.

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

And S250, the terminal equipment determines the transmission power of the first uplink signal or determines the transmission power of the HARQ-ACK information of the PDSCH according to the first TPC command field.

First, it should be noted that, the sequence numbers of the above steps do not mean the order of execution, for example, the first DCI and the second DCI in this embodiment do not have the order of order, the network device may send the second DCI before sending the first DCI, and the terminal device may also detect the second DCI between detecting the first DCI.

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. Wherein the HARQ-ACK information may include acknowledgement ACK/negative acknowledgement NACK. The first search space and the second search space may be associated with the same core set or core sets of core sets, that is, the TPC command field detected in one core set or one core set may be used to determine the transmission power of the uplink signal scheduled by DCI detected in the core set or 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, and the first DCI is simultaneously 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 SRS may also be understood as scheduling SRS.

Therefore, the method for transmitting signals according to the embodiment of the present application associates DCI corresponding to an uplink signal detected in different search spaces associated with the same CORESET or the same CORESET group with DCI including a TPC command field, so that the transmit power of the uplink signal can be determined according to the TPC command field, uplink signal transmission in uplink incoherent transmission can be well matched, the spectrum efficiency of uplink transmission is improved, and the transmission performance of the uplink signal is improved.

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

In the non-coherent transmission, the network device may configure a plurality of core sets for the terminal device, for example, the network device configures a plurality of core sets through Radio Resource Control (RRC) signaling, and each core set may be associated with one TRP and/or one antenna panel pannel. A TRP may be transmitted between the respective CORESET and the terminal device, or the terminal device may transmit signals between the respective CORESET and the network device over a pannel.

In addition, the network device may also configure multiple CORESETs for the terminal device, for example, the network device configures multiple CORESETs through RRC signaling, and configures one CORESET group identifier for each CORESET to identify a CORESET group to which the CORESET belongs, and if the group identifiers of two CORESETs are the same, the CORESET group is considered to belong to the same CORESET group. Alternatively, the network device may configure a plurality of CORESET groups for the terminal device through RRC signaling, where each CORESET group includes one or more CORESETs. Wherein each CORESET may be associated with one TRP and/or one antenna panel pannel. A TRP may be transmitted between the corresponding CORESET and the terminal device, or the terminal device may transmit signals between the corresponding CORESET and the network device over a pannel.

The network device may associate the TPC command field detected in the search space associated with the same CORESET or the same CORESET group with the DCI for scheduling the uplink signal, so that the terminal device may determine the transmit power of the uplink signal scheduled by the DCI detected in the CORESET or the CORESET group according to the TPC command field included in the DCI detected in the CORESET or the CORESET group. Or the network device may associate the detected TPC command field in the search space associated with the same core set or core set with the DCI for scheduling the PDSCH, so that the terminal device may determine the transmission power of the HARQ-ACK information corresponding to the PDSCH scheduled by the DCI detected in the core set or core set according to the TPC command field detected in the core set or core set. For example, the first search space is associated with a first CORESET or a CORESET in a first CORESET group, and the terminal device may determine, according to a TPC command field included in a first DCI detected in the first search space, a transmit power of an uplink signal transmission scheduled by a DCI detected in all search spaces associated with the first CORESET or the first CORESET group. Alternatively, the terminal device may determine the transmission power of HARQ-ACK information of a PDSCH scheduled by DCI detected in all search spaces associated with the first CORESET or the first CORESET group according to a TPC command field included in a first DCI detected in the first search space, where the first CORESET or the first CORESET group may be associated with a plurality of search spaces.

In this embodiment of the present application, the HARQ-ACK information corresponding to the uplink signal and the PDSCH and the TPC command field need to satisfy a certain timing requirement. Specifically, the TPC command field may take effect only after a period of time after the terminal device receives the TPC command field, for example, a time interval between the TPC command field and the uplink signal applying the TPC command field or the HARQ-ACK information corresponding to the PDSCH may need to be greater than or equal to several slots or several OFDM symbols. The TPC command field is not applied even if the above condition of the same CORESET or the same CORESET is satisfied for the previously scheduled uplink signal or the transmitted HARQ-ACK information.

In each CORESET or each CORESET group, the terminal device may determine the transmit power of the uplink signal in a manner similar to method 200. Optionally, in an embodiment of the present application, the method 200 further includes: the terminal equipment detects third DCI in a third search space, wherein the third DCI comprises a second TPC command domain; the terminal equipment determines the transmission power of a second uplink signal according to the second TPC command domain; the second uplink signal is an uplink signal scheduled by a fourth DCI detected in a fourth search space, or the second uplink signal is a PUCCH used for carrying second HARQ-ACK information, the second HARQ-ACK information is HARQ-ACK information corresponding to a PDSCH scheduled by the fourth DCI detected in the fourth search space, and the third search space and the fourth search space are associated with the same CORESET or a CORESET in the same CORESET. For example, the first search space and the second search space are both associated with a first CORESET, and the third search space and the fourth search space are both associated with a second CORESET. As another example, the first search space and the second search space are both associated with a first CORESET, and the third search space and the fourth search space are both associated with a second CORESET.

Optionally, the first search space may be a common 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 an SRS. Optionally, the first search space may also be a UE-specific search space. For example, if the first uplink signal is a PUCCH, the first DCI may be a DCI for scheduling a PUSCH/PDSCH; if the first uplink signal is a PUSCH, the first DCI may be a DCI for scheduling a PUSCH.

Alternatively, the second search space may be a common 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 determining, by the terminal device, the transmission power of the first uplink signal according to the first TPC command field includes: the terminal equipment determines a closed loop power control adjustment factor according to the first TPC command domain; and the terminal equipment determines the transmission power of the first uplink signal according to the closed-loop power control adjustment factor. For example, the terminal device may determine f in the above equation (1) according to the first TPC command field _b，f，c (i, l), and the transmission power of the PUSCH can be determined according to equation (1). For another example, the terminal device may determine h in the above formula (2) according to the first TPC command field _b，f，c (i, l), and the SRS transmission power may be determined according to equation (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. Likewise, the network device receives the first uplink signal transmitted by the terminal device at the determined transmission power.

For a detailed description of the method 200 for transmitting a signal according to the embodiment of the present application, reference may be made to the first embodiment and the second embodiment below, and for brevity, details are not described herein again.

Fig. 5 shows a schematic flow chart of a method 300 of transmitting a signal of an embodiment of the application. As shown in fig. 5, the method 300 may be implemented by an interaction between a terminal device and a network device, and specifically, the method 300 includes some or all of the following:

s310, the network device sends a TPC command field to the terminal device, and the TPC command field has an association relation with the first identifier.

S320, the terminal equipment receives a Transmission Power Control (TPC) command field sent by the network equipment, and the TPC command field and the first identifier have an association relation.

And S330, the terminal equipment determines the sending power of the first uplink signal corresponding to the first identifier according to the TPC command domain.

First, the following points need to be explained:

1. the first identity may refer to any one of the following definitions: an ID for identifying a panel of the terminal device, or an ID of an SRS resource set, or an ID of an SRS resource, or an ID of a PUCCH resource, or an ID of a CSI-RS resource, or an index of an SSB.

2. The TPC command field and the first identifier have an association relationship, which may refer to that the TPC command field carries the first identifier, or that the DCI carrying the TPC command field carries the first identifier. For example, the first identifier may be configured independently for each TPC command field, and for example, each TPC command field may further include an indication of the first identifier in addition to the TPC command and the indication of the possible closed loop power control procedure. As another example, multiple TPC command fields may share a first identity. Indication information of only one first identity may be included in each DCI, and all TPC command fields included in the DCI share the same first identity.

3. The first uplink signal and the first identifier have a corresponding relationship, which may mean that the network device independently configures a 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 to include an uplink signal of the indication information of the first identifier; transmitting an SRS on a set of SRS resources whose identity ID of the set of sounding reference signal SRS resources is equal to the first identity; transmitting an SRS on the SRS resource with the identification ID of the sounding reference signal SRS resource equal to the SRS resource of the first identification; configuring uplink signals of which high-layer parameters comprise the indication information of the first identifier; corresponding to the uplink signal of the indication information including the first identifier in the space related information; scheduling the DCI to be in the uplink signal of the indication information of the first identifier in the configuration parameter of the control resource set CORESET; scheduling an uplink signal of the configuration parameter of the search space where the DCI is located, wherein the uplink signal comprises the indication information of the first identifier; and the uplink signal transmitted by the antenna panel determined by the first identifier. In the 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 the corresponding one or more uplink signals. In the embodiment of the present application, one uplink signal may also correspond to a plurality of first identifiers. If one uplink signal corresponds to a plurality of first identifiers, power adjustment needs to be performed respectively 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 method for transmitting a signal according to the embodiment of the present application, the TPC command field and the uplink signal are associated through the first identifier, where one first identifier may be associated with one pannel and/or one TRP, so that the transmit power of the uplink signal may be determined according to the TPC command field, the uplink signal transmission in uplink incoherent transmission may be well matched, and it is beneficial to improve the spectrum efficiency of uplink transmission, thereby improving the transmission performance of the uplink signal.

Optionally, the determining, by the terminal device, the transmission power of the first uplink signal according to the TPC command field includes: the terminal equipment determines a closed loop power control adjustment factor according to the TPC command domain; and the terminal equipment determines the transmission power of the first uplink signal according to the closed-loop power control adjustment factor. For example, the terminal device may determine f in the above formula (1) according to the first TPC command field _b，f，c (i, l), and the transmission power of the PUSCH can be determined according to equation (1). For another example, the terminal device may determine h in the above formula (2) according to the first TPC command field _b，f，c (i, l), and the SRS transmission power may be determined according to equation (2).

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

For a detailed description of the method 300 for transmitting a signal according to the embodiment of the present application, reference may be made to the third embodiment below, and for brevity, detailed description is omitted here.

The technical solution of the present application will be described in detail with reference to several specific examples.

The first embodiment is as follows: the network equipment transmits first DCI including a TPC command field through a first search space, wherein the TPC command field is used for determining the transmission power of uplink signal transmission scheduled by second DCI transmitted in a second search space. And the terminal equipment 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 contained in the first DCI detected in the first search space. Wherein the second search space is associated with the same CORESET or CORESET in the same CORESET group as the first search space.

Optionally, the network device may pre-configure at least one search space through high-level signaling, where the configuration parameter of each search space includes an identifier (identity, ID) of an associated CORESET or an identifier of a CORESET group described in the associated CORESET, an aggregation level, a search space type, and the like. The Search Space type includes whether the Search Space is Common Search Space (CSS) or UE-specific Search Space (USS), and a DCI format that the terminal device needs to detect in the Search Space.

Optionally, the network device may also configure a plurality of CORESET or a plurality of CORESET groups to the terminal device, where each CORESET or each CORESET group is associated with a TRP, that is, a control channel on the CORESET or the CORESET group is transmitted by the TRP and is used for scheduling signal transmission between the TRP and the terminal device. Or, each core or each core group is associated with a panel of a terminal device for scheduling upstream signal transmission on the panel. By the mode, the network equipment can schedule uplink and downlink transmission corresponding to different TRPs or uplink transmission on different panels through different CORESETs or CORESETs in different CORESET groups, so that the scheduling flexibility is improved, and multi-TRP transmission or multi-panel transmission is supported.

Optionally, the terminal device may receive a plurality of CORESET or a plurality of CORESET groups configured by the network device, each CORESET or each CORESET group being associated with a number of search spaces. The terminal equipment determines the transmission power of the uplink signal scheduled by the DCI for uplink scheduling detected in each CORESET or each CORESET group according to the TPC command field contained in the DCI for transmitting the TPC command field detected in each CORESET or each CORESET group. That is, the TPC command field detected on one core set or one core set can only be used for the scheduled uplink signal transmission on the core set or the core set, and cannot be used for the scheduled uplink signal transmission on other core sets or other core sets. By the method, independent closed-loop power control of each CORESET or each CORESET group can be ensured, so that power control is independently performed on the uplink signal of each TRP or the uplink signal transmitted on each panel, and the accuracy of uplink power control is improved.

Specifically, after receiving the DCI format that needs to be detected in one search space and configured by the network device according to the search space type (searchSpaceType), the terminal device blindly detects the corresponding DCI format in the search space and the CORESET associated with the search space. In the present embodiment, it is assumed that the terminal device detects the first DCI in the first search space and the second DCI in the second search space. It should be noted that, in this embodiment, the terminal device detects DCI in one search space, which may also be described as the terminal device detecting DCI in the search space and the CORESET associated with the search space, or as the terminal device detecting DCI in the CORESET associated with the search space.

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

Wherein the first search space is a common search space. Specifically, the search space type (searchSpaceType) in the first search space is configured as Common, and the DCI format to be detected correspondingly 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 dedicated to indicate a group (group) TPC of an uplink signal.

The second search space may be a CSS or a USS. If the second search space is the CSS, the DCI format that needs to be detected accordingly is DCI format 2_3, or DCI format 0_0 and DCI format 1_0. If the second search space is the USS, the DCI format to be detected correspondingly includes DCI format 0_0 and DCI format 1_0, or includes DCI format 0_1 and DCI format 1_1, or includes the above four DCI formats. Correspondingly, the DCI format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3, that is, the second DCI is a DCI for scheduling PUSCH transmission or triggering aperiodic SRS transmission.

Optionally, the uplink signal is an SRS, a PUSCH, or a PUCCH. For example, if the DCI format of the first DCI is DCI format 2_2, the uplink signal is PUSCH or PUCCH; and 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 a plurality of TPC command fields therein. Specifically, the first DCI includes TPC command fields of multiple terminal devices or multiple carriers, and the network device notifies, through a high-level signaling, the terminal device of the TPC command fields belonging to a certain terminal device among the TPC command fields. For example, the terminal device may determine the TPC command field belonging to the terminal device from the TPC index (index) indicated by the network device. After detecting the first DCI from the first search space, the terminal device determines a TPC command domain belonging to the terminal device from a plurality of TPC command domains included in the first DCI, and then determines, according to the TPC command domain, transmission power of uplink signal transmission scheduled by an uplink grant (uplink grant) detected in all search spaces associated with the first CORESET or CORESETs in the first CORESET group.

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

And finally, the terminal equipment transmits the uplink signal according to the determined sending power. And the network equipment receives the uplink signal transmitted by the terminal equipment.

Fig. 6 shows a corresponding schematic block diagram of the first embodiment. Wherein, the CORESET1 and the COSRESET2 are two CORESETs configured to the terminal device by the network device, wherein the CORESET1 is associated with the CSS1, the USS1 and the USS2, and the CORESET2 is associated with the CSS2 and the USS 3. And the terminal equipment determines closed-loop power adjustment factors of the PUSCH scheduled by 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 CSS 1. And the terminal equipment determines the SRS transmission closed-loop power adjustment factor triggered by the DCI format 0_1 detected by the USS2 according to the SRS TPC command in the DCI format 2_3 detected by the CSS 1. Similarly, in CORESET2, the terminal device determines the closed loop power adjustment factor of the PUSCH scheduled by DCI format 0_1 detected by USS3 according to the PUSCH TPC command in DCI format 2_2 detected by CSS 2.

Example two: the network equipment transmits first DCI comprising a TPC command field through a first search space, wherein the TPC command field is used for determining the transmission power of target HARQ-ACK information, and the target HARQ-ACK information is the HARQ-ACK information of a PDSCH scheduled by second DCI transmitted in a second search space. Wherein the second search space is associated with the same CORESET or the same CORESET group as the first search space. And the terminal equipment 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 HARQ-ACK information of a PDSCH scheduled by second DCI detected in a second search space, and the second search space is associated with the same CORESET or the same CORESET group with the first search space.

The detailed description of the search space, the CORESET group, the first search space, the second search space, and the TPC command field refers to the description in the first embodiment, and is not repeated here for brevity.

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

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 specially used for indicating group TPC of 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 for scheduling PDSCH transmission.

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

The terminal device can receive a plurality of CORESETs or a plurality of CORESET groups configured by the network device, and each CORESET or each CORESET group is associated with a plurality of search spaces. And the terminal equipment determines the transmission power of the HARQ-ACK information of the PDSCH scheduled by the DCI for downlink scheduling detected in each CORESET or each CORESET group according to the TPC command field contained in the DCI for transmitting the PUCCH TPC command detected in each CORESET or each CORESET group. That is, the TPC commands detected on one core set or one core set can only be used for HARQ-ACK transmission of the scheduled PDSCH on that core set or that core set, and cannot be used for HARQ-ACK transmission of the scheduled PDSCH on other core sets or other core sets. By the method, independent closed-loop power control of each CORESET or each CORESET group can be ensured, so that the power control is independently carried out aiming at the HARQ-ACK feedback of each PDSCH scheduled by TRP, and the accuracy of uplink power control is improved.

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

And the terminal equipment transmits the HARQ-ACK information according to the determined sending power. And the network equipment receives the HARQ-ACK information transmitted by the terminal equipment.

Fig. 7 shows a schematic block diagram corresponding to the second embodiment. The CORESET1 and the COSRESET2 are two CORESETs configured to the terminal equipment by the network equipment, wherein the CORESET1 is associated with the CSS1 and the USS1, and the CORESET2 is associated with the CSS2 and the USS 2. And the terminal equipment determines a closed loop power adjustment factor of PUCCH1 according to a PUCCH TPC command in DCI format 2_2 detected by CSS1, wherein the PUCCH1 is used for carrying HARQ-ACK information 1 of a PDSCH scheduled by DCI format 1_1 detected by USS 1. 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 HARQ-ACK information 2 of PDSCH scheduled by DCI format 1_0 detected by USS 2.

Example three: the network equipment transmits first DCI comprising a TPC command domain, wherein the TPC command domain is used for determining the transmission power of an uplink signal corresponding to a first identifier associated with the TPC command domain. And the terminal equipment determines the transmission power of the uplink signal corresponding to the first identifier associated with the TPC command domain according to the TPC command domain included in the detected first DCI.

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

(1) An ID for identifying a terminal equipment panel. Specifically, the terminal device may report the number of the panel configured by the terminal device through the UE capability, where each panel corresponds to one panel ID. For example, if 4 panels are reported by the terminal device, the panel ID corresponding to each panel may be {0,1,2,3}, respectively. At this time, the upstream signal corresponding to the panel ID is the upstream signal transmitted over the panel. If two upstream signals are transmitted on the same panel, they can be considered to correspond to the same panel ID.

(2) An ID of one SRS resource set. Specifically, if an SRS resource set corresponds to SRS transmission on a panel, the ID of the SRS resource set can be used as an ID for identifying the panel. Wherein, SRS resource set and panel need not be one-to-one. In this case, the uplink signal corresponding to the first identifier may be an uplink signal transmitted by using the same panel as the SRS resource set identified by the ID.

(3) An ID of one SRS resource. Specifically, if each SRS resource corresponds to SRS transmission on a panel, the ID of the SRS resource can be used as an ID for identifying the panel. Wherein, SRS resources and panel need not be in one-to-one correspondence. In this case, the uplink signal corresponding to the first identifier may be an uplink signal transmitted by using the same panel as the SRS resource identified by the ID.

(4) ID of one PUCCH resource. Specifically, if different PUCCH resources can be transmitted on different panels, the ID of the PUCCH resource may be used as the ID identifying the panel. In this case, the uplink signal corresponding to the first identifier may be an uplink signal transmitted by 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-resource set).

(5) An ID of the spatial correlation information. If the signals transmitted on different panels configure different spatial correlation information, the ID of the spatial correlation information can be used as the panel ID. Here, the spatial correlation information may be SRS spatial correlation information (SRS-spatial relationship info) or PUCCH spatial correlation information (PUCCH-spatial relationship info). At this time, the uplink signal corresponding to the first identifier may be an uplink signal configured with the spatial correlation information.

(6) An ID of one CSI-RS resource. When the beam correspondence is established, a transmission beam of an uplink signal transmitted on a panel can be determined by a reception beam of the CSI-RS resource, and an ID of the CSI-RS resource can be used as an ID for identifying the panel. In this case, the uplink signal corresponding to the first identifier may be an uplink signal for transmitting a panel, where the panel is a reception panel of the CSI-RS resource identified by the ID.

(7) An index of SSBs. When the beam correspondence is established, a transmission beam of a signal on one panel can be determined by a reception beam of the SSB, and therefore an index of the SSB can be used as an ID for identifying the panel. In this case, the uplink signal corresponding to the first identifier may be an uplink signal in which the receiving panel of the SSB identified by the ID is used as the sending panel.

Based on the definition of the first identifier, the terminal device may determine a panel of the terminal device according to the first terminal device associated with the TPC command field, and determine the transmit power for transmitting uplink signals on the panel based on the TPC command in the TPC command field, thereby achieving independent power control of each panel and achieving 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 a PUSCH, the first identifier is indicated by scheduling DCI of the PUSCH, for example, the first identifier may be indicated by a specific information field in the DCI, or the first identifier may be indicated by an SRI indication field, or another information field may be reused. For example, if an SRI indication field in DCI indicates one 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 DCI of the aperiodic SRS, for example, the first identifier may be indicated while an SRS resource set is indicated by triggering signaling, or an ID of the aperiodic SRS resource set indicated by the triggering signaling is used as the first identifier. An example of this is given in table 1.

TABLE 1

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

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

(5) And configuring the first identifier in the high-level parameters of the uplink signals. For example, if the uplink signal is a PUSCH, the first identifier may be indicated by a configuration parameter set (higher layer parameter PUSCH-config) of the PUSCH. For another example, if the uplink signal is a PUCCH, the first identifier may be indicated by configuring a higher layer parameter of a PUCCH resource, for example, a PUCCH resource ID or a PUCCH resource set ID in the higher layer parameter is used as the first identifier, or a first identifier is configured for each PUCCH resource or each PUCCH resource set through higher layer signaling. For another example, if the uplink signal is an SRS, the first identifier may be indicated by configuring an SRS resource or a higher layer parameter of an SRS resource set. For example, the SRS Resource ID or the 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 (higher layer parameter SRS-Resource) or the SRS Resource set configuration (higher layer parameter SRS-Resource set).

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

(7) And the first identifier is indicated in the parameter of the CORESET where the DCI of the uplink signal is scheduled. Specifically, each core set may be respectively indicated with a first identifier, and when the terminal device detects DCI scheduling an uplink signal in the core set, the uplink signal scheduled by the DCI is the uplink signal corresponding to the first identifier. If the CORESET is used to schedule multiple upstream signals, the multiple upstream signals each correspond to the first identifier.

(8) And the first identifier is indicated in the parameter of the search space where the DCI for scheduling the uplink signal is located. Specifically, each search space may be respectively indicated with a first identifier, and when the terminal detects DCI scheduling an uplink signal in the search space, the uplink signal scheduled by the DCI is the uplink signal corresponding to the first identifier.

(9) And transmitting 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 regarded as uplink signals corresponding to the first identifier. At this time, these uplink signals need to use the TPC commands 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, a plurality of TPC command fields may be included in the first DCI. Specifically, the first DCI includes TPC command fields of multiple terminal devices or multiple carriers, and the network device notifies, through a high-level signaling, the terminal device of the TPC command fields belonging to a certain terminal device among the TPC command fields. For example, the terminal device may determine the TPC command field belonging to the terminal device from the TPC index indicated by the network device.

Alternatively, the first identity associated with one TPC command field may be indicated in the TPC command field, as shown in fig. 8. Or the first identity of one TPC command field association may be indicated in the first DCI, as shown in fig. 9. Each TPC command field may configure the first identifier independently, for example, each TPC command field may include, in addition to the TPC command and the indication information of the possible closed-loop power control procedure, indication information of one first identifier. In addition, a plurality of TPC command fields may share the indication information of the same first flag. Alternatively, each DCI may include only indication information of one first identifier, and all TPC command fields included in the DCI share the same first identifier.

Specifically, the uplink signal is an SRS, a PUSCH, or a PUCCH. For example, if the DCI format of the first DCI is DCI format 2_2, the uplink signal is a PUSCH or PUCCH; and 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 a closed-loop power control adjustment factor of a closed-loop power control process indicated in the TPC command field according to the TPC command in the TPC command field; and determining the transmission power corresponding to the closed-loop power control process according to the closed-loop power control adjustment factor. And when the uplink signal corresponding to the first identifier associated with the TPC command domain adopts the closed-loop power control process, adopting the corresponding transmission power as the uplink transmission power.

And the terminal equipment transmits the uplink signal according to the determined sending power. And the network equipment receives the uplink signal transmitted by the terminal equipment according to the determined transmission power.

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

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Having described the method for transmitting a signal according to an embodiment of the present application in detail above, an apparatus for transmitting a signal according to an embodiment of the present application will be described below with reference to fig. 10 to 15, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

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

a transceiving unit 410, configured to receive a 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 410, configured to determine a transmit power of a first uplink signal according to the first TPC command field;

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

Optionally, in this embodiment of the application, the first search space and the second search space are associated with a first CORESET or a CORESET in a first CORESET group, and the transceiver unit is further configured to: receiving configuration information of a plurality of CORESETs or a plurality of CORESET groups sent by a network device, wherein the CORESETs comprise the first CORESET, and the CORESET groups comprise the first CORESET group.

Optionally, in this embodiment of the application, the plurality of CORESET further includes a second CORESET or the plurality of CORESET groups further includes a second CORESET group, and the transceiver unit is further configured to: receiving third DCI in a third search space, the third DCI comprising a second TPC command field; the processing unit is further to: determining the transmission power of a second uplink signal according to the second TPC command domain; the second uplink signal is an uplink signal scheduled by fourth DCI received by the transceiver unit in a fourth search space, or the second uplink signal is a PUCCH for carrying second HARQ-ACK information, the second HARQ-ACK information is HARQ-ACK information corresponding to a PDSCH scheduled by the fourth DCI received by the transceiver unit in a fourth search space, and the third search space and the fourth search space are associated with the second CORESET or are associated with CORESET in the second CORESET.

Optionally, in this embodiment of the present application, each of the plurality of CORESETs is associated with one transmission point TRP and/or one antenna panel, or each of the plurality of CORESETs is associated with one transmission point TRP and/or one antenna panel.

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

Optionally, in this 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 a PUSCH or a PUCCH; or if the format of the first DCI is DCI format 2_3, the uplink signal includes an SRS.

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

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to a terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing a corresponding flow of the terminal device in the method of fig. 4, and are not described herein again for brevity.

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

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

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

Optionally, in this embodiment of the application, the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals: scheduling downlink control information DCI to comprise an uplink signal of the indication information of the first identifier; transmitting an SRS on a sounding reference signal, SRS, resource set with an identification, ID, equal to the first identified set of SRS resources; transmitting an SRS on the SRS resource with the identification ID of the sounding reference signal SRS resource equal to the SRS resource of the first identification; the uplink signal of which the high-level parameters used for configuring the uplink signal comprise the indication information of the first identifier; the uplink signal corresponding to the space related information and comprising the indication information of the first identifier; scheduling the DCI to be in the uplink signal of the indication information of the first identifier in the configuration parameter of the control resource set CORESET; scheduling an uplink signal of the configuration parameter of the search space where the DCI is located, wherein the uplink signal comprises the indication information of the first identifier; and the uplink signal transmitted by the antenna panel determined by the first identifier.

Optionally, in this embodiment of the present application, the associating relationship between the TPC command field and the first identifier includes: the first identifier is carried in the TPC command domain; or the first identifier is carried in first DCI, and the first DCI includes the TPC command field.

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

Optionally, in an embodiment of the present application, the processing unit is further configured to: determining a first antenna panel according to the first identifier; the transceiver unit is further configured to: transmitting, on the first antenna panel, the first uplink signal.

Optionally, in this embodiment of the present application, the first identifier is an identifier ID for identifying an antenna panel of the terminal device, an ID of a sounding reference signal SRS resource set, an ID of a sounding reference signal SRS resource, an ID of spatial correlation information, an ID of a channel state information reference signal CSI-RS resource, or an index of a 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 embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 500 are respectively for implementing the corresponding flow of the terminal device in the method of fig. 6, and are not described herein again for brevity.

Fig. 12 shows a schematic block diagram of a network device 600 of an embodiment of the application. As shown in fig. 12, the network device 600 includes:

a transceiving unit 610, configured to transmit a 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 device to determine a transmission power of a first uplink signal:

the first uplink signal is an uplink signal scheduled by second DCI transmitted in a second search space, or the first uplink signal is a physical uplink control channel PUCCH used for carrying first HARQ-ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to a 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 the CORESET in the same CORESET.

Optionally, in this embodiment of the application, the first search space and the second search space are associated with a first CORESET or a CORESET in a first CORESET group, and the transceiver unit is further configured to: sending configuration information of a plurality of CORESETs to the terminal device, wherein the CORESETs comprise the first CORESET, each CORESET in the CORESETs is associated with one transmission point TRP and/or one antenna panel, or the CORESET groups comprise the first CORESET group, and each CORESET group in the CORESET groups is associated with one transmission point TRP and/or one antenna panel.

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

It should be understood that the network device 600 according to the embodiment of the present application may correspond to a network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 600 are respectively for implementing a corresponding flow of the network device in the method of fig. 5, and are not described herein again for brevity.

Fig. 13 shows a schematic block diagram of a network device 700 of an embodiment of the application. As shown in fig. 13, the network device 700 includes:

a transceiver unit 710, configured to send a 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 a transmit power of a first uplink signal corresponding to the first identifier.

Optionally, in this embodiment of the application, the first uplink signal corresponding to the first identifier includes at least one of the following uplink signals: scheduling downlink control information DCI to include an uplink signal of the indication information of the first identifier; transmitting an SRS on a set of SRS resources whose identity ID of the set of sounding reference signal SRS resources is equal to the first identity; transmitting an SRS on an SRS resource whose ID of the SRS resource is equal to the first identification; configuring uplink signals of which high-layer parameters comprise the indication information of the first identifier; the uplink signal corresponding to the space related information and comprising the indication information of the first identifier; scheduling the DCI to be in the uplink signal of the indication information of the first identifier in the configuration parameter of the control resource set CORESET; scheduling an uplink signal of the configuration parameter of the search space where the DCI is located, wherein the uplink signal comprises the indication information of the first identifier; and the uplink signal transmitted by the antenna panel determined by the first identifier.

Optionally, in this embodiment of the present application, the associating relationship between the TPC command field and the first identifier includes: the first identifier is carried in the TPC command domain; or the first identifier is carried in first downlink control information DCI, where the first DCI includes the TPC command field.

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

It should be understood that the network device 700 according to the embodiment of the present application may correspond to a network device in an embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 700 are respectively for implementing a corresponding flow of the network device in the method of fig. 5, and are not described herein again for brevity.

As shown in fig. 14, the present embodiment also provides a terminal device 800, where the terminal device 800 may be the terminal device 500 in fig. 10 and the terminal device 600 in fig. 11, and can be used to execute the content of the terminal device corresponding to each method in fig. 5 and fig. 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 a 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. From the memory 820, the processor 810 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, as shown in fig. 14, the terminal device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 830 may include a transmitter and a receiver, among others. The transceiver 830 may further include one or more antennas.

Optionally, the terminal device 800 may be a terminal device according to this embodiment, and the terminal device 800 may implement a corresponding process implemented by the terminal device in each method according to this embodiment, which is not described herein again for brevity.

In a specific embodiment, 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 terminal device 500 may be implemented by processor 810 in fig. 14.

As shown in fig. 15, an embodiment of the present application further provides a network device 900, and the network device 800 may be the network device 600 in fig. 12 and the network device 700 in fig. 13, which can be used to execute the content of the network device corresponding to each method in fig. 5 and fig. 6. The network device 900 shown in fig. 15 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 15, network device 900 may also include memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from 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, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 930 may include a transmitter and a receiver, among others. The transceiver 930 may further include one or more antennas.

Optionally, the network device 900 may be a network device in this embodiment, and the network device 900 may implement a corresponding process implemented by the network device in each method in this embodiment, which is not described herein again for brevity.

In a specific embodiment, 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 may call and run a computer program from a 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. From the memory 1020, the processor 1010 may call and execute a computer program to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

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

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

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as 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 according to 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.

The terminal device 2010 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 2020 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, and details are not repeated here.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and combines hardware thereof to complete the steps of the method.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising 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 enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting a signal, comprising:

the method comprises the steps that terminal equipment detects first Downlink Control Information (DCI) in a first search space, wherein the first DCI comprises a plurality of Transmission Power Control (TPC) command domains, and the plurality of TPC command domains respectively correspond to a plurality of carriers of the terminal equipment;

the terminal equipment determines the sending power of a first uplink signal on each carrier according to the TPC command domains;

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 physical uplink control channel PUCCH used for carrying first hybrid automatic repeat request HARQ-response ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to a physical downlink shared channel 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 control resource set CORESET or the CORESET in the same CORESET.

2. The method of claim 1, wherein the first search space and the second search space are associated with a first CORESET or a CORESET of a first CORESRT group, the method further comprising:

the terminal device receives configuration information of a plurality of CORESETs or a plurality of CORESET groups sent by a network device, wherein the CORESETs comprise the first CORESET, and the CORESET groups comprise the first CORESET group.

3. The method of claim 2, wherein the plurality of CORESET further comprises a second CORESET or the plurality of CORESET groups further comprises a second CORESET group, the method further comprising:

the terminal equipment detects a third DCI in a third search space, wherein the third DCI comprises a second TPC command domain;

the terminal equipment determines the transmission power of a second uplink signal according to the second TPC command domain;

the second uplink signal is an uplink signal scheduled by fourth DCI detected in a fourth search space, or the second uplink signal is a PUCCH used for carrying second HARQ-ACK information, the second HARQ-ACK information is HARQ-ACK information corresponding to a PDSCH scheduled by the fourth DCI detected in the fourth search space, and the third search space and the fourth search space are associated with the second CORESET or are associated with CORESET in the second CORESET.

4. Method according to claim 2 or 3, characterized in that each of said plurality of CORESETs is associated with one transmission point TRP and/or one antenna panel, or each of said plurality of CORESET groups is associated with one transmission point TRP and/or one antenna panel.

5. The method of any of claims 1-3, wherein the first search space is a common search space.

6. The method according to any of claims 1-3, wherein the first uplink signal comprises a sounding reference signal, SRS, a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.

7. The method of claim 6,

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

If the first DCI format is DCI format 2_3, the first uplink signal includes an SRS.

8. The method of any of claims 1 to 3, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3.

9. The method of any of claims 1 to 3, wherein the determining, by the terminal device, the transmit power of the first uplink signal on each carrier according to the plurality of TPC command fields comprises:

the terminal equipment determines a closed loop power control adjustment factor on each carrier according to the TPC command domains;

and the terminal equipment determines the transmission power of the first uplink signal according to the closed-loop power control adjustment factor.

10. A method of transmitting a signal, comprising:

the method comprises the steps that terminal equipment receives a plurality of Transmission Power Control (TPC) command domains sent by network equipment, the TPC command domains respectively correspond to a plurality of carriers of the terminal equipment, and the TPC command domains have an association relation with a first identifier;

and the terminal equipment determines the transmission power of the first uplink signal corresponding to the first identifier on each carrier according to the TPC command domains.

11. The method of claim 10, wherein the first uplink signal corresponding to the first identifier comprises at least one of the following uplink signals:

scheduling downlink control information DCI to comprise an uplink signal of the indication information of the first identifier;

transmitting an SRS on a sounding reference signal, SRS, resource set with an identification, ID, equal to the first identified set of SRS resources;

transmitting an SRS on the SRS resource with the identification ID of the sounding reference signal SRS resource equal to the SRS resource of the first identification;

the uplink signal of which the high-level parameters used for configuring the uplink signal comprise the indication information of the first identifier;

corresponding to the uplink signal of the indication information including the first identifier in the space related information;

scheduling the DCI to be in the uplink signal of the indication information of the first identifier in the configuration parameter of the control resource set CORESET;

scheduling an uplink signal of the configuration parameter of the search space where the DCI is located, wherein the uplink signal comprises the indication information of the first identifier;

and the uplink signal transmitted by the antenna panel determined by the first identifier.

12. The method of claim 10 or 11, wherein the associating of the plurality of TPC command fields with the first flag comprises:

the first identifier is carried in the plurality of TPC command domains; or

The first identifier is carried in a first DCI, the first DCI including the plurality of TPC command fields.

13. The method of claim 10 or 11, wherein the determining, by the terminal device, the transmission power of the first uplink signal on each carrier according to the plurality of TPC command fields comprises:

14. The method according to claim 10 or 11, further comprising:

the terminal equipment determines a first antenna panel according to the first identifier;

and the terminal equipment sends the first uplink signal on the first antenna panel.

15. The method according to claim 10 or 11, wherein the first identifier is an identifier ID for identifying an antenna panel of the terminal device, an ID of a set of sounding reference signal, SRS, resource, spatial correlation information, channel state information reference signal, CSI-RS, resource, or an index of a synchronization signal block, SSB.

16. The method according to claim 10 or 11, wherein the first uplink signal comprises a sounding reference signal, SRS, a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.

17. A method of transmitting a signal, comprising:

the method comprises the steps that network equipment transmits first Downlink Control Information (DCI) to terminal equipment in a first search space, wherein the first DCI comprises a plurality of Transmission Power Control (TPC) command domains, the plurality of TPC command domains respectively correspond to a plurality of carriers of the terminal equipment, and the plurality of TPC command domains are used for the terminal equipment to determine the sending power of a first uplink signal on each carrier;

the first uplink signal is an uplink signal scheduled by second DCI transmitted in a second search space, or the first uplink signal is a physical uplink control channel PUCCH used for carrying first hybrid automatic repeat request HARQ-response ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to a 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 the CORESET in the same CORESET.

18. The method of claim 17, wherein the first search space and the second search space are associated with a first CORESET or CORESET in a first CORESET, the method further comprising:

the network device sends configuration information of a plurality of CORESETs or a plurality of CORESET groups to the terminal device, wherein the CORESETs comprise the first CORESET, each CORESET in the CORESETs is associated with one transmission point TRP and/or one antenna panel, or the CORESET groups comprise the first CORESET group, and each CORESET group in the CORESET groups is associated with one transmission point TRP and/or one antenna panel.

19. The method of claim 17 or 18, wherein the first search space is a common search space.

20. The method according to claim 17 or 18, wherein the first uplink signal comprises a sounding reference signal, SRS, a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.

21. The method of claim 20,

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 an SRS.

22. The method of claim 17 or 18, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3.

23. A method of transmitting a signal, comprising:

the network equipment sends a plurality of Transmission Power Control (TPC) command domains to the terminal equipment, the TPC command domains respectively correspond to a plurality of carriers of the terminal equipment, the TPC command domains have an association relation with a first identifier, and the TPC command domains are used for determining the sending power of a first uplink signal corresponding to the first identifier on each carrier.

24. The method of claim 23, wherein the first uplink signal corresponding to the first identifier comprises at least one of the following uplink signals:

scheduling downlink control information DCI to include an uplink signal of the indication information of the first identifier;

transmitting an SRS on a set of SRS resources whose identity ID of the set of sounding reference signal SRS resources is equal to the first identity;

the uplink signal corresponding to the space related information and comprising the indication information of the first identifier;

scheduling an uplink signal of the indication information of the first identifier in the configuration parameters of the search space where the DCI is located;

25. The method of claim 23 or 24, wherein the associating of the plurality of TPC command fields with the first identity comprises:

the first identifier is carried in the TPC command domains; or

The first identifier is carried in first downlink control information DCI, and the first DCI includes the plurality of TPC command fields.

26. The method according to claim 23 or 24, wherein the first identifier is an identifier ID for identifying an antenna panel of the terminal device, an ID of a set of sounding reference signal, SRS, resource, spatial correlation information, channel state information reference signal, CSI-RS, resource or an index of a synchronization signal block, SSB.

27. The method according to claim 23 or 24, wherein the first uplink signal comprises a sounding reference signal, SRS, a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.

28. A terminal device, comprising:

a transceiver unit, configured to receive a first downlink control information DCI in a first search space, where the first DCI includes a plurality of TPC command fields, and the TPC command fields respectively correspond to a plurality of carriers of the terminal device;

a processing unit, configured to determine, according to the multiple TPC command fields, a transmission power of a first uplink signal on each carrier;

the first uplink signal is an uplink signal scheduled by second DCI received by the transceiver unit in a second search space, or the first uplink signal is a physical uplink control channel PUCCH for carrying first hybrid automatic repeat request HARQ-response ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to a 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 the CORESET in the same CORESET.

29. The terminal device of claim 28, wherein the first search space and the second search space are associated with a first CORESET or a CORESET in a first CORESET group, and wherein the transceiver unit is further configured to:

receiving configuration information of a plurality of CORESETs or a plurality of CORESET groups sent by a network device, wherein the CORESETs comprise the first CORESET.

30. The terminal device of 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 further configured to:

receiving a third DCI in a third search space, the third DCI including a second TPC command field;

the processing unit is further to:

determining the transmission power of a second uplink signal according to the second TPC command domain;

the second uplink signal is an uplink signal scheduled by fourth DCI received by the transceiver unit in a fourth search space, or the second uplink signal is a PUCCH for carrying second HARQ-ACK information, the second HARQ-ACK information is HARQ-ACK information corresponding to a PDSCH scheduled by the fourth DCI received by the transceiver unit in a fourth search space, and the third search space and the fourth search space are associated with the second CORESET or are associated with CORESET in the second CORESET.

31. The terminal device according to claim 29 or 30, wherein each of the plurality of CORESET is associated with one transmission point TRP and/or one antenna panel, or wherein each of the plurality of CORESET groups is associated with one transmission point TRP and/or one antenna panel.

32. The terminal device of any of claims 28 to 30, wherein the first search space is a common search space.

33. The terminal device according to any of claims 28-30, wherein the first uplink signal comprises a sounding reference signal, SRS, a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.

34. The terminal device of claim 33,

35. The terminal device of any of claims 28 to 30, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3.

36. The terminal device according to any one of claims 28 to 30, wherein the processing unit is specifically configured to:

determining a closed loop power control adjustment factor on each carrier according to the plurality of TPC command fields;

and determining the transmission power of the first uplink signal according to the closed-loop power control adjustment factor.

37. A terminal device, comprising:

a transceiver unit, configured to receive multiple TPC command fields sent by a network device, where the multiple TPC command fields respectively correspond to multiple carriers of the terminal device, and the multiple TPC command fields have an association relationship with a first identifier;

and the processing unit is used for determining the sending power of the first uplink signal corresponding to the first identifier on each carrier according to the plurality of TPC command domains.

38. 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:

39. The terminal device of claim 37 or 38, wherein the TPC command field has an association relationship with the first identifier, comprising:

the first identifier is carried in the plurality of TPC command domains; or

40. The terminal device according to claim 37 or 38, wherein the processing unit is specifically configured to:

41. The terminal device of claim 37 or 38, wherein the processing unit is further configured to:

determining a first antenna panel according to the first identifier;

the transceiver unit is further configured to:

transmitting, on the first antenna panel, the first uplink signal.

42. The terminal device of any one of claims 37 or 38, wherein the first identifier is an identifier ID for identifying an antenna panel of the terminal device, an ID of a set of sounding reference signal, SRS, resource, spatial correlation information, channel state information, CSI-RS, resource, or an index of a synchronization signal block, SSB.

43. The terminal device according to claim 37 or 38, wherein the first uplink signal comprises a sounding reference signal, SRS, a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.

44. A network device, comprising:

a transceiver unit, configured to transmit first downlink control information DCI to a terminal device in a first search space, where the first DCI includes a plurality of TPC command fields, the TPC command fields respectively correspond to a plurality of carriers of the terminal device, and the TPC command fields are used for the terminal device to determine a transmit power of a first uplink signal on each carrier;

45. The network device of claim 44, wherein the first search space and the second search space are associated with a first CORESET or a CORESET in a first CORESRT group, and wherein the transceiver unit is further configured to:

sending configuration information of a plurality of CORESETs or a plurality of CORESET groups to the terminal device, wherein the CORESETs comprise the first CORESET, each CORESET in the CORESETs is associated with one transmission point TRP and/or one antenna panel, or the CORESET groups comprise the first CORESET group, and each CORESET group in the CORESET groups is associated with one transmission point TRP and/or one antenna panel.

46. The network device of claim 44 or 45, wherein the first search space is a common search space.

47. The network device of claim 44 or 45, wherein the first uplink signal comprises a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).

48. The network device of claim 47,

49. The network device of claim 44 or 45, wherein the format of the second DCI is DCI format 0_0, DCI format 0_1, or DCI format 2_3.

50. A network device, comprising:

a transceiver unit, configured to send multiple TPC command fields to a terminal device, where the multiple TPC command fields respectively correspond to multiple carriers of the terminal device, and have an association relationship with a first identifier, and the multiple TPC command fields are used to determine a sending power of a first uplink signal corresponding to the first identifier on each carrier.

51. The network device of claim 50, wherein the first uplink signal corresponding to the first identifier comprises at least one of the following uplink signals:

transmitting an SRS on an SRS resource whose ID of the SRS resource is equal to the first identification;

52. The network device of claim 50 or 51, wherein the TPC command field has an association relationship with the first identifier, comprising:

the first identifier is carried in the plurality of TPC command domains; or

53. The network device of claim 50 or 51, wherein the first identifier is an identifier ID used to identify an antenna panel of the terminal device, an ID of a set of Sounding Reference Signal (SRS) resources, an ID of spatial correlation information, an ID of channel state information reference signal (CSI-RS) resources, or an index of a Synchronization Signal Block (SSB).

54. The network device of claim 50 or 51, wherein the first uplink signal comprises a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).

55. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 9.

56. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 10 to 16.

57. A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 17 to 22.

58. A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 23 to 27.

59. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 9.

60. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 10 to 16.

61. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 17 to 22.

62. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 23 to 27.

63. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 9.

64. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 10 to 16.

65. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 17 to 22.

66. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 23 to 27.