WO2025108250A1 - Communication method and apparatus, and chip, chip module and storage medium - Google Patents

Abstract

Disclosed in the present application are a communication method and apparatus, and a chip, a chip module and a storage medium. If no PUSCH transmission on an activated uplink bandwidth part of a first carrier of a first serving cell is configured for a terminal device, or if it is indicated to the terminal device that an independent power control adjustment state is used between an SRS transmission and a PUSCH transmission, or if two power control adjustment states are configured for the terminal device for an SRS transmission, and the two power control adjustment states are independent of a power control adjustment state used for a PUSCH transmission, or if two power control adjustment states are configured for the terminal device for an SRS transmission and are independent of the power control adjustment state used for an PUSCH transmission, and it is indicated to the terminal device that an independent power control adjustment state is used between the SRS transmission and the PUSCH transmission, the terminal device can determine power in a manner which is associated with the power control adjustment states corresponding to the SRS transmission, so as to send an SRS, thereby implementing an uplink transmission.

Description

Communication method, device, chip, chip module and storage medium

This application claims priority to the Chinese patent application filed with the China Patent Office on November 21, 2023, with application number 202311562152.6 and application name “Communication method, device, chip, chip module and storage medium”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method, device, chip, chip module and storage medium.

Background Art

For the transmission of sounding reference signal (SRS), how to determine the power control parameters of SRS and reasonably perform power control to realize the transmission of SRS is an urgent problem to be solved.

Summary of the invention

The present application provides a communication method, device, chip, chip module and storage medium to determine the power control parameters of SRS, reasonably perform power control, and realize SRS transmission.

In a first aspect, a communication method is provided, which can be implemented by a terminal device, or a chip or circuit used for the terminal device.

The method includes: if physical uplink shared channel transmission on the activated uplink part bandwidth of the first carrier of the first service cell is not configured; or if it is indicated that an independent power control adjustment state is used between the detection reference signal transmission and the physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission, determining a first transmit power, and the first transmit power is associated with the first power control adjustment state corresponding to the detection reference signal transmission.

Alternatively, the method includes: in response to a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier that is not configured in a first service cell; or in response to being instructed to adopt an independent power control adjustment state between a sounding reference signal transmission and a physical uplink shared channel transmission; or in response to being configured with two power control adjustment states for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, determining a first transmit power, the first transmit power being associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the method includes: if a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier of a first service cell is not configured, determining a first transmit power, wherein the first transmit power is associated with a first power control adjustment state corresponding to the detection reference signal transmission.

Alternatively, the method includes: if it is indicated that independent power control adjustment states are used between the sounding reference signal transmission and the physical uplink shared channel transmission, determining a first transmit power, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, determining a first transmit power, the first transmit power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission. Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, determining a first transmit power, the first transmit power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

In a possible implementation, the method further includes: sending the sounding reference signal on the activated uplink partial bandwidth of the first carrier of the first serving cell at a first transmission power.

In another possible implementation, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

In another possible implementation, the method further includes: receiving configuration information, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state.

In another possible implementation, the first transmit power is associated with a power control adjustment state h _b,f,c (i,l) at carrier f, uplink portion bandwidth b, service cell c, and at transmission timing i of a detection reference signal, wherein b is an identifier of the activated uplink portion bandwidth, f is an identifier of the first carrier, c is an identifier of the first service cell, i is an index of the transmission timing of the detection reference signal, and l is the first index.

Exemplarily, each power control adjustment state has a corresponding power adjustment value.

In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h _b,f,c (i,l) satisfies:

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

In yet another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is provided, and DCI format 2_3 is detected K _SRS,min symbols before the first symbol of SRS transmission opportunity i, the h _b,f,c (i,l) satisfies:
h _b,f,c (i,l)＝δ _SRS,b,f,c (i,l)

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

In a second aspect, a communication method is provided, which can be implemented by a network device, or a chip or circuit used for a network device.

The method includes: if the physical uplink shared channel transmission of the terminal device on the activated uplink partial bandwidth of the first carrier of the first service cell is not configured; or if the terminal device is instructed to use an independent power control adjustment state between the detection reference signal transmission and the physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is instructed to use an independent power control adjustment state between SRS transmission and PUSCH transmission, receiving the detection reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, and the first transmission power is associated with a first power control adjustment state corresponding to the detection reference signal transmission.

Alternatively, the method includes: in response to a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier of a first service cell that is not configured for a terminal device; or in response to an instruction to adopt an independent power control adjustment state between a sounding reference signal transmission and a physical uplink shared channel transmission of the terminal device; or in response to being configured with two power control adjustment states for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and an independent power control adjustment state is adopted between SRS transmission and PUSCH transmission, receiving the sounding reference signal sent by the terminal device at a first transmit power on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the first transmit power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the method includes: if the physical uplink shared channel transmission of the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured, receiving the sounding reference signal sent by the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell with a first transmission power, the first transmission power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the method includes: if the terminal device is instructed to use an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission, receiving the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, the first transmission power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, receiving the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, and the sounding reference signal is received by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

In a possible implementation, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

In another possible implementation, the method further includes: sending configuration information, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state.

In another possible implementation, the first transmit power is associated with a power control adjustment state h _b,f,c (i,l) at carrier f, uplink portion bandwidth b, service cell c, and at transmission timing i of a detection reference signal, wherein b is an identifier of the activated uplink portion bandwidth, f is an identifier of the first carrier, c is an identifier of the first service cell, i is an index of the transmission timing of the detection reference signal, and l is the first index.

Exemplarily, each power control adjustment state has a corresponding power adjustment value.

In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h _b,f,c (i,l) satisfies:

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is provided, and a DCI format 2_3K _{SRS ,min symbol is detected K SRS,} min symbols before the first symbol of the SRS transmission opportunity i, the h _b,f,c (i,l) satisfies:
h _b,f,c (i,l)＝δ _SRS,b,f,c (i,l)

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

In a third aspect, a communication device is provided, which can implement the communication method described in the first aspect or any one of the first aspects. For example, the communication device can be a chip or a terminal device. The method can be implemented by software, hardware, or by hardware executing corresponding software.

In a possible implementation, the communication device includes: a processing unit, and may also include a transceiver unit. The processing unit is used to determine a first transmission power if physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured; or if it is indicated that an independent power control adjustment state is used between the sounding reference signal transmission and the physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission, and the first transmission power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the processing unit is used to determine a first transmit power in response to a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier that is not configured in a first service cell; or in response to being instructed to adopt an independent power control adjustment state between a sounding reference signal transmission and a physical uplink shared channel transmission; or in response to being configured with two power control adjustment states for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, and the first transmit power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the processing unit is used to determine a first transmit power if a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier of a first service cell is not configured, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the processing unit is used to determine a first transmit power if it is instructed to use an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission, and the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the processing unit is used to determine a first transmit power if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and the first transmit power is associated with a first power control adjustment state corresponding to the detection reference signal transmission.

Alternatively, the processing unit is configured to determine a first transmit power if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, and the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission. Optionally, the transceiver unit is configured to send the sounding reference signal on the activated uplink partial bandwidth of the first carrier of the first serving cell at the first transmit power.

Optionally, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

Optionally, the transceiver unit is further used to receive configuration information, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state.

Optionally, the first transmit power is associated with a power control adjustment state h _b,f,c (i,l) at carrier f, uplink portion bandwidth b, service cell c, and at transmission timing i of a detection reference signal, wherein b is an identifier of the activated uplink portion bandwidth, f is an identifier of the first carrier, c is an identifier of the first service cell, i is an index of the transmission timing of the detection reference signal, and l is the first index.

Exemplarily, each power control adjustment state has a corresponding power adjustment value.

Optionally, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h _b,f,c (i,l) satisfies:

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

Optionally, if the transmit power control-accumulation amount tpc-Accumulation is provided, and K _SRS,min symbols before the first symbol of SRS transmission opportunity i are in DCI format 2_3, the h _b,f,c (i,l) satisfies:
h _b,f,c (i,l)＝δ _SRS,b,f,c (i,l)

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

In a fourth aspect, a communication device is provided, which can implement the communication method in the second aspect or any one of the second aspects. For example, the communication device can be a chip or a network device. The method can be implemented by software, hardware, or by hardware executing corresponding software.

In a possible implementation, the communication device includes: a transceiver unit, and may also include a processing unit. The transceiver unit is used to receive the sounding reference signal sent by the terminal device on the activated uplink partial bandwidth of the first carrier of the first service cell with a first transmit power, if the physical uplink shared channel transmission on the activated uplink partial bandwidth of the first carrier of the first service cell is not configured; or if it is indicated that an independent power control adjustment state is used between the sounding reference signal transmission and the physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission, and the first transmit power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the transceiver unit is used to, in response to a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier that is not configured in a first service cell; or in response to being instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission; or in response to being configured with two power control adjustment states for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, the two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, receive the sounding reference signal sent by the terminal device at a first transmit power on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the first transmit power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the transceiver unit is used to receive the sounding reference signal sent by the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell with a first transmission power if the physical uplink shared channel transmission of the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the transceiver unit is used to receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell if the terminal device is instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the transceiver unit is used to receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Alternatively, the transceiver unit is used to, if configured with two power control adjustment states for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and is instructed to use independent power control adjustment states between SRS transmission and PUSCH transmission, receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

Optionally, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

Optionally, the transceiver unit is further used to send configuration information, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state.

Optionally, the first transmit power is associated with a power control adjustment state h _b,f,c (i,l) at carrier f, uplink portion bandwidth b, service cell c, and at transmission timing i of a detection reference signal, wherein b is an identifier of the activated uplink portion bandwidth, f is an identifier of the first carrier, c is an identifier of the first service cell, i is an index of the transmission timing of the detection reference signal, and l is the first index.

Exemplarily, each power control adjustment state has a corresponding power adjustment value.

Optionally, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h _b,f,c (i,l) satisfies:

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

Optionally, if the transmit power control-accumulation amount tpc-Accumulation is provided, and DCI format 2_3 is detected K _SRS,min symbols before the first symbol of SRS transmission opportunity i, the h _b,f,c (i,l) satisfies:
h _b,f,c (i,l)＝δ _SRS,b,f,c (i,l)

Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

In combination with any aspect of the first aspect to the second aspect, in another possible implementation, the communication device in any aspect of the first aspect to the second aspect includes a processor coupled to a memory; the processor is configured to support the device to perform corresponding functions in the above communication method. The memory is used to couple with the processor, which stores the necessary programs (instructions) and/or data of the device. Optionally, the communication device may also include a communication interface for supporting communication between the device and other network elements. Optionally, the memory may be located inside the communication device or outside the communication device.

In combination with any one of the first aspect to the second aspect, in another possible implementation, the communication device in any one of the first aspect to the second aspect includes a processor and a transceiver, the processor is coupled to the transceiver, and the processor is used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the above method through a logic circuit or execute code instructions. The transceiver may be a transceiver, a transceiver circuit, or an input-output interface, which is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device. When the communication device is a chip, the transceiver is a transceiver circuit or an input-output interface.

When the communication device in any of the first to second aspects is a chip or a chip module, the sending unit may be an output unit, such as an output circuit or a communication interface; the receiving unit may be an input unit, such as an input circuit or a communication interface. When the communication device is a terminal device or a network device, the sending unit may be a transmitter or a transmitter; the receiving unit may be a receiver or a receiver.

In a fifth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed, the methods described in the above aspects are implemented.

According to a sixth aspect, a computer program product comprising instructions is provided. When the instructions are executed on a computer, the computer executes the methods described in the above aspects.

In a seventh aspect, a communication system is provided, which includes the communication device described in the third aspect and the communication device described in the fourth aspect.

The solution of this application has the following beneficial effects:

If PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured; or if it is indicated that an independent (separate) power control adjustment state is adopted between SRS transmission and PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that an independent power control adjustment state is adopted between SRS transmission and PUSCH transmission, the terminal device can determine the power in a manner associated with the power control adjustment state corresponding to the SRS transmission and then send the SRS to achieve uplink transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1A is a schematic diagram of a communication system involved in an embodiment of the present application;

FIG1B is a schematic diagram of another communication system involved in an embodiment of the present application;

FIG2 is a schematic diagram of another communication system involved in an embodiment of the present application;

FIG3 is a schematic diagram of an exemplary communication scenario;

FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG6 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application.

DETAILED DESCRIPTION

The solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

FIG1A is a schematic diagram of a communication system involved in an embodiment of the present application. The communication system may include one or more network devices (only one is shown in the figure) and one or more terminal devices connected to the network device. A network device may transmit data or control signaling to one or more terminal devices. In another communication system as shown in FIG1B , multiple network devices may also transmit data or control signaling to a terminal device at the same time.

The network device can be any device with wireless transceiver functions, including but not limited to: base station (NodeB), evolved base station (eNodeB), base station in 5G communication system, base station or network equipment in future communication system, access node in Wi-Fi system, wireless relay node, wireless backhaul node, etc. The network device can also be a wireless controller in the cloud radio access network (CRAN) scenario. The network device can also be a small station, transmission reference point (TRP), etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

Terminal equipment is a device with wireless transceiver function, which can be deployed on land (including indoors or outdoors), handheld, wearable or vehicle-mounted; it can also be deployed on the water, such as on ships; it can also be deployed in the air, such as on airplanes, balloons and satellites. Terminal equipment can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, complete vehicles, functional modules in vehicles, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city (for example, street lights, etc.), wireless terminal equipment in smart home, etc. The embodiments of the present application do not limit the application scenarios. The terminal device may also be sometimes referred to as user equipment (UE), access terminal equipment, UE unit, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, terminal equipment (terminal), wireless communication equipment, UE agent or UE device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

Optionally, in an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application. It can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application. For example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute a program.

In other words, the relevant functions of the terminal device or network device in the embodiment of the present application can be implemented by one device, or by multiple devices together, or by one or more functional modules in one device, and the embodiment of the present application does not specifically limit this. It is understandable that the above functions can be network elements in hardware devices, or software functions running on dedicated hardware, or a combination of hardware and software, or virtualization functions instantiated on a platform (e.g., a cloud platform).

The communication between the network device and the terminal device in the communication system shown in FIG. 1A and FIG. 1B can also be represented in another form. As shown in FIG. 2, the terminal device 10 includes a processor 101, a memory 102, and a transceiver 103. The transceiver 103 includes a transmitter 1031, a receiver 1032, and an antenna 1033. The network device 20 includes a processor 201, a memory 202, and a transceiver 203. The transceiver 203 includes a transmitter 2031, a receiver 2032, and an antenna 2033. The receiver 1032 can be used to receive transmission control information through the antenna 1033, and the transmitter 1031 can be used to send transmission feedback information to the network device 20 through the antenna 1033. The transmitter 2031 can be used to send transmission control information to the terminal device 10 through the antenna 2033, and the receiver 2032 can be used to receive the transmission feedback information sent by the terminal device 10 through the antenna 2033.

Among them, processor 101/processor 201 can be a CPU, a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

The memory 102/memory 202 may be a device with a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor through a communication line. The memory may also be integrated with the processor.

The memory 102/memory 202 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 101/processor 201. The processor 101/processor 201 is used to execute the computer-executable instructions stored in the memory 102/memory 202, thereby realizing the communication method provided in the embodiment of the present application.

Alternatively, in the embodiment of the present application, the processor 101/processor 201 may also perform processing-related functions in the communication method provided in the following embodiments of the present application.

The computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which is not specifically limited in the embodiments of the present application.

In some possible implementations, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site coherent joint transmission may be multiple sites coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent joint transmission may be remote radio heads (RRH), TRP, etc., and there is no specific limitation on this.

In some possible implementations, the network device may be any one of the multiple sites that perform incoherent joint transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, the multi-site incoherent joint transmission may be multiple sites joint incoherent transmission, or different data belonging to the same PDSCH is sent from different sites to the terminal device, and the names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site incoherent joint transmission may be RRH, TRP, etc., and there is no specific limitation on this. The transmission scheme of multiple TRPs may include a multi-TRP (single-downlink control information based M-TRP, S-DCI based M-TRP) transmission scheme based on single downlink control information, and may also include a multi-TRP (M-DCI based M-TRP) transmission scheme based on multiple downlink control information.

Among them, M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool identifiers (coresetPoolIndex) values, such as coresetPoolIndex = 0, coresetPoolIndex = 1. Of course, M-DCI based M-TRP can also be reflected in other ways, which are not specifically limited.

Among them, S-DCI based M-TRP can be embodied as follows: one DCI can indicate multiple transmission configuration indicator (TCI) states, or one DCI can include multiple sounding reference signal resource indication (SRS resource indicator, SRI) fields. Of course, S-DCI based M-TRP can also be embodied in other ways, which are not specifically limited.

It should be noted that the TRP of the present application is not limited to coherent joint transmission or incoherent joint transmission scenarios, but can also be applied to other scenarios without specific restrictions.

In some possible implementations, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

In some possible implementations, a network device may provide services for a cell, and a terminal device in the cell may communicate with the network device through transmission resources (such as spectrum resources). The cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

In some possible implementations, the network device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

(1) TRP:

It should be noted that the new communication scenarios mentioned in this application may involve communication scenarios such as multiple-transmission and reception point (M-TRP), multiple-downlink control information based M-TRP (M-DCI based M-TRP), and single DCI based M-TRP (S-DCI based M-TRP).

M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool indexes (control resource set pool index, CORESET pool index, CORESETPoolIndex) values, such as CORESETPoolIndex = 0, CORESETPoolIndex = 1. It can also be reflected in that the network will configure the value of the control resource set pool index (control resource set pool index, CORESET pool index, CORESETPoolIndex), such as CORESETPoolIndex = 1. Of course, M-DCI based M-TRP is reflected through other concepts/parameters, and no specific limitation is made to this.

S-DCI based M-TRP can be reflected in that one DCI can indicate multiple TCI states, or one DCI can include multiple sounding reference signal resource indicator (SRS resource indicator, SRI) fields, etc. Of course, S-DCI based M-TRP can also be reflected through other concepts/parameters, which are not specifically limited.

In some possible implementations, TRP can be a functional module (for example, implemented using software functions) or can be implemented through hardware, and there is no specific limitation on this.

In some possible implementations, TRP can be characterized by parameters such as TCI status, sounding reference signal (SRS) resources, SRS resource set, spatial information, CORESETPoolIndex, timing advance group (TAG) identifier (ID), SRI, and the value of the TCI selection field.

In other words, parameters such as TCI status, SRS resources, SRS resource set, airspace information, CORESETPoolIndex, TAG ID, SRI, etc. can also be regarded as TRP.

In some possible implementations, TRP can be associated with spatial information or a slot direction (e.g., a beam or a group of beams); or, TRP can be characterized by spatial information or a slot direction (e.g., a beam or a group of beams); or, TRP can be characterized by power control parameters.

In some possible implementations, a TRP may be a network node, a radio head, a spatial relation, or a transmission configuration indication state. In some embodiments, a TRP may be represented by a spatial relation or a TCI state. In some embodiments, a TRP may use multiple TCI states. In some embodiments, a TRP may be a part of a gNB that sends/receives radio signals to/from a terminal device based on the physical layer properties and parameters inherent to that component. In some embodiments, in multi-TRP (multi-TRP) operation, a serving cell may schedule a terminal device from two TRPs, thereby providing better PDSCH coverage, reliability, and/or data rate. There are two different modes of operation for multi-TRP: single downlink control information (DCI) and multi-DCI. For both modes, the control of uplink and downlink operations is done by the physical layer and the media access control (MAC). In single-DCI mode, the terminal device is scheduled by the same DCI of both TRPs, while in multi-DCI mode, the terminal device is scheduled by independent DCI from each TRP.

In some embodiments, a set of transmission points (TPs) is a set of geographically co-located transmit antennas, e.g., antenna arrays (with one or more antenna elements), for a cell, a portion of a cell, or a positioning reference signal, PRS-only TPs. TPs may include base station (eNB) antennas, remote radio heads (RRHs), remote antennas of base stations, antennas of PRS-only TPs, etc. A cell may consist of one or more TPs. For homogeneous deployments, each TP may correspond to a cell.

In some embodiments, a group of TRPs is a group of geographically co-located antennas, such as an antenna array (having one or more antenna elements), that support TP and/or reception point (RP) functionality.

Note that the description given herein focuses on 3GPP cellular communication systems, and therefore, 3GPP terminology or 3GPP-like terminology is often used. However, the concepts disclosed herein are not limited to 3GPP systems.

(2) Existing method for determining the transmission power of SRS:

The following description is from 3GPP TS 38.213: "NR; Physical layer procedures for control", but the concepts in this article are not limited to 3GPP systems. The following description only gives an example of obtaining the transmission power of SRS, and this application does not limit the way of obtaining the transmission power of SRS to be changed accordingly with the evolution of communication technology, for example, it does not limit any deformation of the formula for determining the transmission power of SRS.

If the UE transmits SRS on the bandwidth part (BWP) b of the activated uplink (UL) of the carrier f of the serving cell c using the SRS power control adjustment state with index l based on the configuration of the SRS-ResourceSet, the UE determines that the transmission power P _SRS,b,f,c (i,q _s ,l) of the SRS at the SRS transmission opportunity i satisfies:

where _PCMAX,f,c (i) is the maximum output power of the UE for carrier f of serving cell c for SRS transmission opportunity i as defined in [8, TS 38.101-1], [8-2, TS 38.101-2] and [TS 38.101-3];

_{PO_SRS,b,f,c} ( _qs ) represents the target received power of the SRS resource set _qs in the SRS transmission opportunity i of the activated UL BWP b of the carrier f of the serving cell c, which can be configured by the parameter p0. _qs is provided by SRS-ResourceSet and SRS-ResourceSetId.

M _SRS,b,C,( (i) is an SRS bandwidth expressed in terms of the number of resource blocks used for SRS transmission opportunity i on UL BWP b of carrier f serving cell c, and μ is the SCS configuration defined in [4, TS 38.211].

α _SRS,b,f,c (q _s ) is provided by alpha, where alpha is used for the SRS resource set q _s on the UL BWP b of carrier f serving cell c.

PL _b,f,c (q _d ) is a downlink path loss estimate in dB calculated by the UE using the RS resource index q _d and the SRS resource set q _s , where q _d is described in clause 7.1.1 [TS 38.213] for the UL BWP b of carrier f serving cell c. _{q s} is described in [6, TS 38.214].

For activated UL BWP b and SRS transmission opportunity i for carrier f serving cell c:

(1) if srs-PowerControlAdjustmentStates indicates the same power control adjustment state for both SRS transmission and physical uplink shared channel (PUSCH) transmission, then h _b,f,c (i,l)=f _b,f,c (i,l), where f _b,f,c (i,l) is the current PUSCH power control adjustment state as defined in clause 7.1.1 [TS38.213]; or

(2) If the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f of serving cell c, or srs-PowerControlAdjustmentStates indicates independent power control adjustment states for SRS and PUSCH transmissions, and tpc-Accumulation is not provided, then where the values of δ _SRS,b,f,c are given in Table 7.1.1-1 [TS38.213];

δ _SRS,b,f,c (m) is jointly encoded with other transmission power control (TPC) commands, which are located in DCI format 2_3 carried on PDCCH;

is the sum of the TPC command values in the TPC command value set S _i , and the UE receives the TPC command value set S _i between _the K _SRS (ii ₀ )-1 symbol and the K _SRS (i) symbol, wherein the K SRS (ii ₀ )-1 symbol is located before the SRS transmission opportunity ii ₀ , and the K _SRS (i) symbol is located before the SRS transmission opportunity i on the activated UL BWP b of the carrier f of the serving cell c in the SRS power control adjustment state, wherein, for the K _SRS (i) symbol before the SRS transmission opportunity ii ₀ , it is earlier than the K _SRS (ii ₀ ) symbol before the SRS transmission opportunity i, and i ₀ >0 is the smallest integer ( is a sum of TPC command values in a set S _i of TPC command values with cardinality C(S _i )that the UE receives between K _SRS (ii ₀ )-1 symbols before SRS transmission occasion ii ₀ and K _SRS (i)symbols before SRS transmission occasion i on active UL BWP b of carrier f of serving cell c for SRS power control adjustment state,where i ₀ >0 is the smallest integer for which K _SRS (i)symbols before SRS transmission occasion ii ₀ is earlier than K _SRS (ii ₀ )symbols before SRS transmission occasion i). The above is given The meaning of this parameter can be understood accordingly with the evolution of communication technology;

If the SRS transmission is aperiodic, K _SRS (i) is the number of symbols of the activated UL BWP b corresponding to carrier f of serving cell c after the last symbol of the corresponding PDCCH that triggers the SRS transmission and before the first symbol of the SRS transmission;

If the SRS transmission is semi-continuous or periodic, K _SRS (i) is the number of symbols of K _SrS,min , which is equivalent to the number of symbols per time slot. The product of the minimum value provided by k2 in PUSCH-ConfigCommon and the activated UL BWP b for carrier f of serving cell c;

- If the first symbol of an SRS transmission opportunity occurs within T _proc,2 , which is after the last symbol received by the PDCCH for which the UE detects a DCI format provided by a TPC command, the UE may defer the application of TPC until the above condition is invalid. _{T proc,2} is the PUSCH preparation time corresponding to the UE processing capability, assuming d _2,1 = 0, and μ corresponds to the smallest SCS configuration between the sub-carrier space (SCS) configuration of the PDCCH carrying the DCI format and the SCS configuration of the SRS.

If at SRS transmission opportunity ii ₀ , the UE reaches the maximum power of the activated UL BWP b for carrier f of serving cell c, and Then h _b,f,c (i)＝h _b,f,c (ii ₀ );

If at SRS transmission opportunity ii ₀ , the UE reaches the minimum power of the activated UL BWP b for carrier f of serving cell c, and Then h _b,f,c (i)＝h _b,f,c (ii ₀ );

If higher layers provide a configuration for the activated UL BWP b for carrier f of serving cell c, a configuration for the _{PO_SRS,b,f,c} ( _qs ) value for the corresponding SRS power control adjustment state l, or a configuration for the α _SRS,b,f,c ( _qs ) value:
h _b,f,c (k)＝0,k＝0,1,…,i

otherwise,
h _b,f,c (0)＝ΔP _rampup,b,f,c +δ _b,f,c

in:

δ _b,f,c is the TPC command value indicated in the random access response grant, which corresponds to the physical random access channel (PRACH) transmission of the random access procedure based on Type-1, or the random access response grant corresponds to the MsgA transmission of the random access procedure based on Type-2, and the random access procedure based on Type-2 has an RAR message for feedback of the random access response (RAR), or δ _b,f,c is the TPC command value indicated in the successful RAR, which corresponds to the MsgA transmission of the random access procedure for Type-2.
ΔP _rampup,b,f,c =min[max(0,P _CMAX,f,c -(P _{O_SRS,b,f,c} (q _s )+10log ₁₀ (2 ^μ ·M _SRS,b,f,c (i))+
α _sRS,b,f,c (q _s )·PL _b,f,c (q _d ))),ΔP _{rampup_requested,b,f,c} ];

Wherein, ΔP _{rampup_requested,b,f,c} is provided by the higher layer, and corresponds to the entire power capacity (power ramp-up) from the first to the last preamble of the activated UL BWP b of the carrier f serving the cell c requested by the higher layer.

(3) If the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f of serving cell c, or if srs-PowerControlAdjustmentStates indicates that separate power control adjustment states are used between SRS transmission and PUSCH transmission, and tpc-Accumulation is provided, and the UE detects a DCI format 2_3 K SRS _{, min} symbols before a first symbol of SRS transmission occasion i, then h _b,f,c (i) = δ _SRS,b,f,c (i), where the absolute value of δ _SRS,b,f,c is provided in Table 7.1.1-1 [TS38.213].

If srs-PowerControlAdjustmentStates indicates that the same power control adjustment state is used for SRS transmission and PUSCH transmission, the update of the power control adjustment state for SRS transmission opportunity i occurs at the beginning of each SRS resource in the SRS resource set _qs ; otherwise, the update of the power control adjustment state for SRS transmission opportunity i occurs at the beginning of the first transmitted SRS resource in the SRS resource set _qs .

With the development of communication technology, scenarios in which multiple TRPs collaborate have emerged. How to achieve the goal of meeting various uplink rate requirements and reducing network deployment costs in these scenarios is a technical problem that needs to be solved urgently.

When a high rate is required for uplink transmission, it can be considered that only some TRPs (such as one TRP) need to support the downlink transmission capability between the terminal device, and some TRPs only support the uplink transmission capability between the terminal. Compared with the prior art, each TRP needs to support the uplink and downlink transmission capabilities between the terminal device, and this application can save network deployment costs.

For example, there may be a communication scenario as shown in Figure 3: the downlink is a single TRP transmission, and the uplink is a multi-TRP transmission. In Figure 3, only TRP1 sends the downlink, and the terminal device can send the uplink to any one, two or three of TRP1, TRP2 and TRP3. The uplink may include sending data and a reference signal (e.g., SRS). The data is carried on the PUSCH.

For the above scenario, how to determine the power control parameters of the SRS, reasonably perform power control, and realize the transmission of the SRS is an urgent problem to be solved.

To this end, the present application provides a communication scheme. If PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured; or if an independent (separate) power control adjustment state is indicated between SRS transmission and PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and an independent power control adjustment state is indicated between SRS transmission and PUSCH transmission, the terminal device can determine the power in a manner associated with the power control adjustment state corresponding to the SRS transmission and then send the SRS to achieve uplink transmission.

As shown in Figure 4, it is a flow chart of a communication method provided in an embodiment of the present application. Exemplarily, the method may include the following steps:

S401. If the PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or

If it is instructed to use independent power control adjustment states between SRS transmission and PUSCH transmission; or

If two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or

If two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission;

The UE determines a first transmit power.

In an optional implementation, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission.

In an optional implementation, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and the power control adjustment states corresponding to these two power control adjustment state indexes are independent of the power control adjustment state used for PUSCH transmission.

In an optional implementation, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. It can be understood that multiple power control adjustment state indexes are configured for SRS transmission, wherein the power control adjustment states corresponding to the two power control adjustment state indexes are independent of the power control adjustment state used for PUSCH transmission.

In an optional implementation, two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission.

In an optional implementation, two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and the power control adjustment states corresponding to the two power control adjustment state indexes are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission.

In an optional implementation, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission. It can be understood that multiple power control adjustment state indexes are configured for SRS transmission, wherein the power control adjustment states corresponding to the two power control adjustment state indexes are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that an independent power control adjustment state is used between SRS transmission and PUSCH transmission.

When a high rate is required for uplink transmission, the UE needs to determine the transmission power of the SRS in the scenario where only part of the TRP (such as one TRP) is needed to support the downlink transmission capability with the terminal device, and part of the TRP only supports the uplink transmission capability (sending SRS) with the terminal.

Specifically, the following scenarios may include determining the transmission power of the SRS:

In some scenarios, the UE is not configured for PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell, and the UE cannot determine how to perform power control when sending SRS. In this scenario, the UE needs to determine the first transmit power for sending SRS.

In other scenarios, although the UE is configured with PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the network device instructs the UE to use an independent power control adjustment state between SRS transmission and PUSCH transmission. In this scenario, the UE needs to additionally determine the first transmission power for sending SRS.

In other scenarios, although the UE is configured with PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell, and is configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. In this scenario, the UE needs to additionally determine the first transmit power for sending SRS.

In other scenarios, although the UE is configured with PUSCH transmission on the activated uplink partial bandwidth of the first carrier of the first service cell, and is configured with two power control adjustment states for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, the network device instructs the UE to use independent power control adjustment states between SRS transmission and PUSCH transmission. In this scenario, the UE needs to additionally determine the first transmission power for sending SRS.

In this embodiment, the UE determines a first transmit power for transmitting the SRS, wherein the first transmit power is associated with a first power control adjustment state corresponding to the SRS transmission.

For example, if the UE transmits SRS on the bandwidth part (BWP) b of the activated uplink (UL) of the carrier f of the serving cell c using the SRS power control adjustment state (i.e., the first power control adjustment state) with an index of l (i.e., the first index) based on the configuration of the SRS-ResourceSet, the UE determines that the transmission power P _SRS,b,f,c (i,q _s ,l) of the SRS at the SRS transmission opportunity i satisfies:

Among them, the meanings of the parameters _PCMAX,f,c (i), _{PO_SRS,b,f,c} ( _qs ), _MSRS,b,f,c (i), _αSRS,b,f,c ( _qs ) and PLb _,f,c ( _qd ) can be found in the above description and will not be repeated here.

For activated UL BWP b and SRS transmission opportunity i for carrier f serving cell c:

(1) If srs-PowerControlAdjustmentStates indicates the same power control adjustment state for both SRS transmission and physical uplink shared channel (PUSCH) transmission, then h _b,f,c (i,l)=f _b,f,c (i,l), where f _b,f,c (i,l) is the current PUSCH power control adjustment state as defined in clause 7.1.1 [TS38.213];

(2) Alternatively, if the UE is not configured for PUSCH transmission on the activated UL BWP b of the carrier f of the serving cell c, or srs-PowerControlAdjustmentStates indicates that independent power control adjustment states are used between SRS transmission and PUSCH transmission (the transmit power for PUSCH transmission is associated with a second power control adjustment state, and the second power control adjustment state corresponds to the second index), and tpc-Accumulation is not provided, or two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and tpc-Accumulation is not provided, or two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, and tpc-Accumulation is not provided, then in,

The values of δ _SRS,b,f,c are given in Table 7.1.1-1 [TS38.213];

δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, which are located in DCI format 2_3 carried on PDCCH;

is the sum of TPC command values in a TPC command value set S _i , which is received by the UE between a K _SRS (ii ₀ )-1 symbol and a K _SRS ( _i ) symbol, wherein the K _SRS (ii ₀ )-1 symbol is located before an SRS transmission opportunity ii ₀ , and the K _SRS (i) symbol is located before an SRS transmission opportunity i on an activated UL BWP b of a carrier f of a serving cell c in an SRS power control adjustment state l, wherein for the K _SRS (i) symbol before the SRS transmission opportunity ii ₀ , it is earlier than the K _SRS (ii ₀ ) symbol before the SRS transmission opportunity i, and i ₀ >0 is the smallest integer;

If the SRS transmission is aperiodic, K _SRS (i) is the number of symbols of the activated UL BWP b corresponding to carrier f of serving cell c after the last symbol of the corresponding PDCCH that triggers the SRS transmission and before the first symbol of the SRS transmission;

If the SRS transmission is semi-continuous or periodic, K _SRS (i) is the number of symbols of K _SRS,min , which is equivalent to the number of symbols per time slot. The product of the minimum value provided by k2 in PUSCH-ConfigCommon and the activated UL BWP b for carrier f of serving cell c;

- If the first symbol of an SRS transmission opportunity occurs within T _proc,2 , which is located after the last symbol received by the PDCCH for which the UE detected the DCI format provided by the TPC command, the UE may defer the application of TPC until the above condition is invalid. _{T proc,2} is the PUSCH preparation time corresponding to the UE processing capability, assuming that d _2,1 = 0 and μ corresponds to the smallest SCS configuration between the SCS configuration of the PDCCH carrying the DCI format and the SCS configuration of the SRS.

If at SRS transmission opportunity ii ₀ , the UE reaches the maximum power of the activated UL BWP b for carrier f of serving cell c, and Then h _b,f,c (i,l)＝h _b,f,c (ii ₀ ,l);

If at SRS transmission opportunity ii ₀ , the UE reaches the minimum power of the activated UL BWP b for carrier f of serving cell c, and Then h _b,f,c (i,l)＝h _b,f,c (ii ₀ ,l);

Optionally, if the higher layer provides a configuration for the activated UL BWP b for carrier f of serving cell c, a configuration for the corresponding SRS power control adjustment state l for the _{PO_SRS,b,f,c} ( _qs ) value, or a configuration for the α _SRS,b,f,c ( _qs ) value:
h _b,f,c (k,l)＝0,k＝0,1,…,i

otherwise,
h _b,f,c (0,l)＝ΔP _rampup,b,f,c +δ _b,f,c

in:

δ _b,f,c is a TPC command value indicated in a random access response grant corresponding to a physical random access channel (PRACH) transmission of a random access procedure based on Type-1, or a MsgA transmission of a random access procedure based on Type-2 with a random access response (RAR) message for feedback, or δ _b,f,c is

The TPC command value indicated in a successful RAR corresponding to the MsgA transmission for the Type-2 random access procedure.
ΔP _rampup,b,f,c =min[max(0,P _CMAX,f,c -(P _{O_SRS,b,f,c} (q _s )+10log ₁₀ (2 ^μ ·M _SRS,b,f,c (i))+
α _SRS,b,f,c (q _s )·PL _b,f,c (q _d ))),ΔP _{rampup_requested,b,f,c} ];

Wherein, ΔP _{rampup_requested,F,C,(} is provided by the higher layer, which corresponds to the entire power capacity of the activated UL BWP b from the first to the last preamble requested by the higher layer for the carrier f serving the cell c.

(3) Alternatively, if the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f serving cell c, or if srs-PowerControlAdjustmentStates indicates independent power control adjustment states between SRS transmission and PUSCH transmission, and tpc-Accumulation is provided, and the UE detects DCI format 2_3 K _SRB,min symbols before the first symbol of SRS transmission opportunity i, then h _b,f,c (i,l) = δ _SRS,b,f,c (i,l), where the absolute value of δ _SRS,b,f,c is provided in Table 7.1.1-1 [TS38.213].

If srs-PowerControlAdjustmentStates indicates that the same power control adjustment state is used for SRS transmission and PUSCH transmission, the update of the power control adjustment state for SRS transmission opportunity i occurs at the beginning of each SRS resource in the SRS resource set _qs ; otherwise, the update of the power control adjustment state for SRS transmission opportunity i occurs at the beginning of the first transmitted SRS resource in the SRS resource set _qs .

Exemplarily, each of the above power control adjustment states has a corresponding power adjustment value.

Further, before step S401, the network device may also send configuration information to the UE, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state.

It is understandable that after the UE determines the first transmission power of the SRS, it can directly transmit the SRS with the first transmission power, or wait for other triggering events to occur after determining the first transmission power to transmit the SRS with the first transmission power. Therefore, the above step S401 can be implemented independently or in conjunction with step S402.

S402. The UE transmits an SRS on an activated uplink partial bandwidth of a first carrier of a first serving cell at a first transmission power. Correspondingly, the network device receives the SRS.

After determining the first transmit power, the UE may send the SRS to the network device on the activated uplink partial bandwidth of the first carrier of the first serving cell at the first transmit power.

It can be understood that this step is optional, which is indicated by a dotted line in the figure, and can be implemented in conjunction with the above-mentioned step S401 or as an independent embodiment.

According to a communication method provided by an embodiment of the present application, if PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured, or an independent power control adjustment state is indicated between SRS transmission and PUSCH transmission, or two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, or two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and an independent power control adjustment state is indicated between SRS transmission and PUSCH transmission, the terminal device can determine the power in a manner associated with the power control adjustment state corresponding to the SRS transmission and then send the SRS to achieve uplink transmission.

It can be understood that in the above embodiments, the methods and/or steps implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used for the terminal device; the methods and/or steps implemented by the network device can also be implemented by components (such as chips or circuits) that can be used for the network device.

The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of interaction between various network elements. Accordingly, the embodiment of the present application also provides a communication device, which is used to implement the above various methods. The communication device can be a terminal device in the above method embodiment, or a component that can be used for a terminal device; or, the communication device can be a network device in the above method embodiment, or a component that can be used for a network device. It can be understood that in order to implement the above functions, the communication device includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

Based on the same concept of the above communication method, the present application also provides the following communication device:

As shown in Fig. 5, the communication device 500 includes a processing unit 510 and a transceiver unit 520. The communication device 500 is used to implement the functions of the terminal device or network device in the method embodiment shown in Fig. 4 above.

When the communication device 500 is used to implement the function of the terminal device in the method embodiment shown in Figure 4: the processing unit 510 is used to execute step S401, that is, determine the first transmission power, and is also used to generate SRS; and the transceiver unit 520 is used to implement the function of the terminal device in step S402 in the embodiment shown in Figure 4, that is, send SRS with the first transmission power.

When the communication device 500 is used to implement the function of the network device in the method embodiment shown in FIG. 4 : the transceiver unit 520 is used to implement the function of the network device in step S402 in the embodiment shown in FIG. 4 , that is, to receive the SRS at the first transmission power.

A more detailed description of the processing unit 510 and the transceiver unit 520 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG. 4 , and will not be repeated here.

When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device.

When the above communication device is a chip applied to a network device, the network device chip implements the function of the network device in the above method embodiment. The network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device.

In addition, it should be noted that the aforementioned transceiver unit and/or processing unit can be implemented through a virtual module, for example, the processing unit can be implemented through a software function unit or a virtual device, and the transceiver unit can be implemented through a software function or a virtual device. Alternatively, the processing unit or the transceiver unit can also be implemented through a physical device, for example, if the device is implemented using a chip/chip circuit, the transceiver unit can be an input-output circuit and/or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit is an integrated processor or microprocessor or integrated circuit.

As shown in FIG6 , the communication device 600 includes a processor 610 and may further include an interface circuit 620. The processor 610 and the interface circuit 620 are coupled to each other. It is understood that the interface circuit 620 may be a transceiver or an input/output interface. Optionally, the communication device 600 may further include a memory 630 (indicated by a dotted line in the figure) for storing instructions executed by the processor 610 or storing input data required by the processor 610 to execute instructions or storing data generated after the processor 610 executes instructions.

When the communication device 600 is used to implement the function of the terminal device in the method embodiment shown in Figure 4: the processor 610 is used to execute step S401, that is, determine the first transmission power, and is also used to generate SRS; and the interface circuit 620 is used to implement the function of the terminal device in step S402 in the embodiment shown in Figure 4, that is, send SRS with the first transmission power.

When the communication apparatus 600 is used to implement the function of the network device in the method embodiment shown in FIG. 4 : the interface circuit 620 is used to implement the function of the network device in step S402 in the embodiment shown in FIG. 4 , ie, receiving the SRS at the first transmission power.

A more detailed description of the processor 610, the interface circuit 620 and the memory 630 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG. 4, and will not be repeated here.

The division of modules in this application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each example of this application may be integrated into one processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

An embodiment of the present application further provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the method in the above embodiment is implemented.

The embodiments of the present application also provide a computer program product including instructions, which, when executed on a computer, enables the computer to execute the method in the above embodiments.

An embodiment of the present application also provides a communication system, including the above-mentioned communication device.

The embodiment of the present application also provides a circuit, which is coupled to a memory and is used to execute the method shown in the above embodiment. The circuit may include a chip circuit.

When the above-mentioned communication device is a module applied to a network device, the network device module implements the function of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the UE to the network device; or, the network device module sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the UE. The network device module here can be a baseband chip of the network device, or a CU, DU or other module, or a device under the open radio access network (open radio access network, O-RAN) architecture, such as an open CU, an open DU and other devices.

It should be noted that the above units or one or more of the units can be implemented by software, hardware or a combination of the two. When any of the above units or units is implemented by software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow.

In this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or all or part of the circuits in the aforementioned devices for implementing processing functions, which may implement or execute the methods, steps and logic block diagrams disclosed in this application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in this application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

When the above units or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

Optionally, the embodiment of the present application further provides a chip system, including: at least one processor and an interface, the at least one processor is coupled to a memory via the interface, and when the at least one processor runs a computer program or instruction in the memory, the chip system executes a method in any of the above method embodiments. Optionally, the chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

The memory in the present application may also be a circuit or any other device capable of realizing a storage function, for storing program instructions and/or data. The memory is any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. For example, the memory may be a non-volatile memory, such as a digital versatile disc (DVD), a hard disk drive (HDD), or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM).

It should be understood that in the description of the present application, unless otherwise specified, "/" indicates that the objects associated before and after are in an "or" relationship, for example, A/B can represent A or B; wherein A and B can be singular or plural. Also, in the description of the present application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be necessarily different. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in a claim. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

The components in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments and features of the different embodiments described in this specification.

In the present application, under the premise of no logical contradiction, the examples may reference each other, for example, the methods and/or terms between method embodiments may reference each other, for example, the functions and/or terms between device embodiments may reference each other, for example, the functions and/or terms between device examples and method examples may reference each other.

Claims (20)

A communication method, characterized in that the method comprises: If physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or If it is instructed to use independent power control adjustment states between the sounding reference signal transmission and the physical uplink shared channel transmission; or If two power control adjustment states are configured for sounding reference signal SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or If two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission; A first transmit power is determined, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission. The method according to claim 1, characterized in that the method further comprises: The sounding reference signal is sent on the activated uplink portion bandwidth of the first carrier of the first serving cell at the first transmit power. The method according to claim 1 or 2 is characterized in that the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index. The method according to claim 3, characterized in that the method further comprises: Configuration information is received, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state. The method as claimed in claim 3 or 4 is characterized in that the first transmission power is associated with the power control adjustment state h _b,f,c (i,l) at the carrier f, the uplink part bandwidth b, the service cell c, and the transmission timing i of the detection reference signal, wherein b is the identifier of the activated uplink part bandwidth, f is the identifier of the first carrier, c is the identifier of the first service cell, i is the index of the transmission timing of the detection reference signal, and l is the first index. The method of claim 5, wherein if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h _b,f,c (i,l) satisfies:
Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel. The method of claim 5, wherein if a transmit power control-accumulation amount tpc-Accumulation is provided and a DCI format 2_3 is detected K _SRS,min symbols before the first symbol of the SRS transmission opportunity i, the h _b,f,c (i,l) satisfies:
h _b,f,c (i,l)＝δ _SRS,b,f,c (i,l) Among them, δ _SRS,b,f,c (i,l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel. A communication method, characterized in that the method comprises: If the physical uplink shared channel transmission of the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or If it indicates that independent power control adjustment states are used between the sounding reference signal transmission and the physical uplink shared channel transmission of the terminal device, or two power control adjustment states are configured for sounding reference signal SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or If two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission; Receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, wherein the first transmission power is associated with a first power control adjustment state corresponding to the transmission of the sounding reference signal. The method as claimed in claim 8 is characterized in that the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index. The method according to claim 9, characterized in that the method further comprises: Send configuration information, where the configuration information is used to configure the first power control adjustment state and/or the second power control adjustment state. The method as claimed in claim 9 or 10 is characterized in that the first transmission power is associated with the power control adjustment state h _b,f,v (i,l) at the carrier f, the uplink part bandwidth b, the service cell c, and the transmission timing i of the detection reference signal, wherein b is the identifier of the activated uplink part bandwidth, f is the identifier of the first carrier, c is the identifier of the first service cell, i is the index of the transmission timing of the detection reference signal, and l is the first index. The method of claim 11, wherein if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h _b,C,( (i,l) satisfies:
Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel. The method of claim 11, wherein if a transmit power control-accumulation amount tpc-Accumulation is provided and a DCI format 2_3 is detected K _SRS,min symbols before the first symbol of the SRS transmission opportunity i, the h _b,f,c (i,l) satisfies:
h _b,f,c (i,l)＝δ _SRS,b,f,c (i,l) Among them, δ _SRS,b,f,c (m,l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel. A communication device, characterized by comprising a unit for implementing the method as claimed in any one of claims 1 to 7, or comprising a unit for implementing the method as claimed in any one of claims 8 to 13. A communication device, characterized in that it includes a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that when the processor executes the computer program, it implements the method described in any one of claims 1 to 7, or implements the method described in any one of claims 8 to 13. A chip, characterized in that the chip is used to execute the method as described in any one of claims 1 to 7, or to execute the method as described in any one of claims 8 to 13. A chip module, characterized in that it comprises an interface component and a chip, wherein the chip is used to execute the method as described in any one of claims 1 to 7, or execute the method as described in any one of claims 8 to 13. A computer-readable storage medium, characterized in that a computer program or instruction is stored in the storage medium, and when the computer program or instruction is executed by a communication device, the method as described in any one of claims 1 to 7 is implemented, or the method as described in any one of claims 8 to 13 is implemented. A communication system, characterized in that it includes a first communication device and a second communication device, the first communication device is used to implement the method as described in any one of claims 1-7, and the second communication device is used to implement the method as described in any one of claims 8-13. A computer program product, characterized in that the computer program product contains program instructions, and when the program instructions are executed, the method according to any one of claims 1 to 7 is implemented, or the method according to any one of claims 8 to 13 is implemented.