Communication method, apparatus and system, and chip, storage medium and program product

Abstract

A communication method, apparatus and system, and a chip, a storage medium and a program product. The method comprises: a network device sending first information to a terminal, wherein the first information is used for activating at least one first uplink-power control parameter; and the terminal mapping the at least one first uplink-power control parameter to at least one first code point, wherein the at least one first uplink-power control parameter is configured and / or activated independently of at least one first TCI state, and the at least one first TCI state is mapped to at least one second code point. By means of the solution in the present application, an uplink-power control parameter and a transmission configuration indicator are configured and / or activated independently, such that the uplink-power control parameter can be activated individually, thereby improving the flexibility of configuration and / or activation and reducing signaling overheads.

Description

Communication method, device, system, chip, storage medium and program product

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 9, 2024, with application number 202410039402.6 and invention name “Communication method, device, system, chip, storage medium and program product”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a communication method, device, system, chip, storage medium, and program product. Background Art

[0003] During actual communication of a terminal, usually only 8 uplink power control (ul-powercontrol) parameters are needed at most. However, when configuring the network side, up to 64 ul-powercontrol parameters may be configured, which results in a huge signaling overhead.

[0004] In the prior art, ul-powercontrol is bound to the transmission configuration indicator (TCI) state. One TCI state corresponds to only one ul-powercontrol, which has low flexibility. Moreover, when the relevant parameters of ul-powercontrol in the TCI state need to be changed, the TCI state usually needs to be reconfigured, which will bring additional overhead. Summary of the Invention

[0005] The present application provides a communication method, device, system, chip, storage medium and program product to improve the flexibility of configuration and / or activation and reduce signaling overhead.

[0006] In a first aspect, a communication method is provided, the method comprising: receiving first information, the first information being used to activate at least one first uplink power control parameter; and mapping the at least one first uplink power control parameter to at least one first code point; wherein the at least one first uplink power control parameter and at least one first TCI state are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

[0007] In this aspect, the uplink power control parameter and the transmission configuration indication are independently configured and / or activated, so that the uplink power control parameter can be activated separately, which improves the flexibility of configuration and / or activation and reduces signaling overhead.

[0008] In one possible implementation, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to different code points, and the method further includes: receiving second information, where the second information is used to indicate a third code point and a fourth code point, where the third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

[0009] In another possible implementation, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to the same code point, and the method further includes: receiving third information, where the third information is used to indicate a fifth code point, and the fifth code point belongs to the at least one first code point or the at least one second code point.

[0010] In another possible implementation, at least one first downlink TCI state and at least one first uplink TCI state are independently configured, and the first information includes an identifier of the at least one first uplink power control parameter; and mapping the at least one first uplink power control parameter to at least one first code point includes: mapping the at least one first uplink power control parameter to at least one first code point according to a correspondence between the at least one first uplink power control parameter and the at least one first code point, and the identifier of the at least one first uplink power control parameter.

[0011] In this implementation, UL-powercontrol corresponds to a UL TCI state. The network device can directly deliver a list / set containing multiple UL-powercontrol identifiers. The terminal can map at least one first UL-powercontrol to at least one second codepoint based on the correspondence between at least one uplink TCI state and at least one second codepoint, as well as the identifier of at least one first UL-powercontrol. This improves processing efficiency.

[0012] In another possible implementation, the uplink power control parameter includes at least one of the following: an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter; the first information is used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, and at least one uplink reference signal power control parameter.

[0013] In another possible implementation, the method further includes: determining a second TCI state corresponding to the fourth code point based on the fourth code point, and determining a transmission beam based on the second TCI state, wherein the second TCI state belongs to the at least one first TCI state; determining at least one of an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter corresponding to the third code point based on the third code point, and determining at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter based on the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter; and sending at least one of an uplink data channel, an uplink control channel, and an uplink reference signal based on the transmission beam and at least one of the uplink data channel power, the uplink control channel power, and the uplink reference signal power.

[0014] In another possible implementation, the method further includes: receiving fourth information, the fourth information being used to indicate a sixth code point and an updated uplink-power control parameter, the sixth code point belonging to the at least one first code point; and updating the uplink-power control parameter corresponding to the sixth code point.

[0015] In another possible implementation, the first information includes first indication information, where the first indication information is used to indicate a transmission and reception point corresponding to at least one first uplink power control parameter.

[0016] Illustratively, the method described in the first aspect or any implementation of the first aspect may be implemented by a terminal, or a chip or circuit for a terminal.

[0017] In a second aspect, a communication method is provided, the method comprising: sending first information, the first information being used to activate at least one first uplink-power control parameter; wherein the at least one first uplink-power control parameter and at least one first TCI state are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

[0018] In this aspect, the uplink power control parameter and the transmission configuration indication are independently configured and / or activated, so that the uplink power control parameter can be activated separately, which improves the flexibility of configuration and / or activation and reduces signaling overhead.

[0019] In one possible implementation, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to different code points, and the method further includes: sending second information, where the second information is used to indicate a third code point and a fourth code point, where the third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

[0020] In another possible implementation, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to the same code point, and the method further includes: sending third information, where the third information is used to indicate a fifth code point, and the fifth code point belongs to the at least one first code point or the at least one second code point.

[0021] In another possible implementation, the uplink power control parameter includes at least one of the following: an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter; the first information is used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, and at least one uplink reference signal power control parameter.

[0022] In yet another possible implementation, the method further includes: sending fourth information, where the fourth information is used to indicate a sixth code point and an updated uplink power control parameter, and the sixth code point belongs to at least one first code point.

[0023] In another possible implementation, the first information includes first indication information, where the first indication information is used to indicate a transmission and reception point corresponding to at least one first uplink power control parameter.

[0024] Illustratively, the method described in the second aspect or any implementation of the second aspect may be implemented by a network device, or a chip or circuit used for a network device.

[0025] In a third aspect, a communication device is provided for implementing the communication method in the first aspect or any one of the implementations of the first aspect. The device can be a terminal, or a module applied to a terminal (such as a processor, a chip, or a chip system, etc.), or a logical node, a logical module, or software that can implement all or part of a terminal. In one implementation, the communication device may include a sending unit, a receiving unit, and may also include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiver unit").

[0026] In a fourth aspect, a communication device is provided for implementing the communication method in the second aspect or any one of the implementations of the second aspect. The device may be a network device, or a module (such as a processor, a chip, or a chip system, etc.) applied to a network device, or a logical node, a logical module, or software that can implement all or part of the functions of a network device. In one implementation, the communication device may include a sending unit, a receiving unit, and may also include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiver unit").

[0027] In a possible implementation, the communication device in the third to fourth aspects includes a module for respectively executing the method in any one of the first and second aspects or any implementation thereof.

[0028] When the communication device is used to implement the method described in the first aspect or any one of the implementations of the first aspect, the transceiver unit is used to receive first information, and the first information is used to activate at least one first uplink-power control parameter; and the processing unit is used to map the at least one first uplink-power control parameter to at least one first code point; wherein the at least one first uplink-power control parameter and at least one first transmission configuration indication TCI state are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

[0029] Optionally, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to different code points, and the transceiver unit is further used to receive second information, where the second information is used to indicate a third code point and a fourth code point, the third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

[0030] Optionally, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to the same code point, and the transceiver unit is further used to receive third information, where the third information is used to indicate a fifth code point, and the fifth code point belongs to the at least one first code point or the at least one second code point.

[0031] Optionally, the at least one first uplink-power control parameter and the at least one downlink-power control parameter are configured independently, and the first information includes an identifier of the at least one first uplink-power control parameter; the processing unit is used to map the at least one first uplink-power control parameter to at least one first code point based on the correspondence between the at least one first uplink-power control parameter and the at least one first code point, and the identifier of the at least one first uplink-power control parameter.

[0032] Optionally, the uplink power control parameter includes at least one of the following: an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter; the first information is used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, and at least one uplink reference signal power control parameter.

[0033] Optionally, the processing unit is further used to determine a second TCI state corresponding to the fourth code point based on the fourth code point, and to determine a transmission beam based on the second TCI state, wherein the second TCI state belongs to the at least one first TCI state; the processing unit is further used to determine at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter corresponding to the third code point based on the third code point, and to determine at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter based on the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter; and the transceiver unit is further used to send at least one of the uplink data channel, the uplink control channel, and the uplink reference signal based on the transmission beam and at least one of the uplink data channel power, the uplink control channel power, and the uplink reference signal power.

[0034] Optionally, the transceiver unit is further used to receive fourth information, wherein the fourth information is used to indicate a sixth code point and an updated uplink-power control parameter, wherein the sixth code point belongs to the at least one first code point; and the processing unit is further used to update the uplink-power control parameter corresponding to the sixth code point.

[0035] Optionally, the first information includes first indication information, and the first indication information is used to indicate a transmission and receiving point corresponding to at least one first uplink-power control parameter.

[0036] When the communication device is used to implement the method described in the second aspect or any one of the implementations of the second aspect, the transceiver unit is used to send first information, and the first information is used to activate at least one first uplink-power control parameter; wherein the at least one first uplink-power control parameter and at least one first transmission configuration indication TCI state are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

[0037] Optionally, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to different code points, and the transceiver unit is further used to send second information, where the second information is used to indicate a third code point and a fourth code point, the third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

[0038] Optionally, the at least one first uplink-power control parameter and the at least one first TCI state are mapped to the same code point, and the transceiver unit is further used to send third information, where the third information is used to indicate a fifth code point, and the fifth code point belongs to the at least one first code point or the at least one second code point.

[0039] Optionally, the uplink power control parameter includes at least one of the following: an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter; the first information is used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, and at least one uplink reference signal power control parameter.

[0040] Optionally, the transceiver unit is further used to send fourth information, where the fourth information is used to indicate a sixth code point and an updated uplink power control parameter, and the sixth code point belongs to at least one first code point.

[0041] Optionally, the first information includes first indication information, and the first indication information is used to indicate a transmission and receiving point corresponding to at least one first uplink-power control parameter.

[0042] In another possible implementation, the communication device in the third and fourth aspects includes a processor coupled to a memory; the processor is configured to enable the device to perform the corresponding functions in the above-mentioned communication method. The memory is coupled to the processor and stores the necessary programs (instructions) and / or data for the device. Optionally, the communication device may further include a communication interface for enabling communication between the device and other network elements. Optionally, the memory may be located inside or outside the communication device.

[0043] In another possible implementation, the communication device in the third to fourth aspects includes a processor and a transceiver, the processor being coupled to the transceiver, and the processor being 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 executing code instructions. The transceiver may be a transceiver, a transceiver circuit, or an input / output interface, configured to receive signals from other communication devices other than the communication device and transmit them to the processor, or to send signals from the processor to other communication devices other than the communication device. When the communication device is a chip, the transceiver is a transceiver circuit or an input / output interface.

[0044] When the communication device in the third and fourth aspects above is a chip, 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, the sending unit may be a transmitter or a transmitter; and the receiving unit may be a receiver or a receiver.

[0045] 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.

[0046] In a sixth aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, causes the communication device to execute the methods described in the above aspects.

[0047] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG1 is a simplified schematic diagram of a wireless communication system provided by an embodiment of the present application;

[0049] Figures 2a-2c are schematic diagrams of application scenarios of satellite-ground fusion networks;

[0050] FIG3 is a schematic diagram of the format of activating TCI state through MAC CE in the prior art;

[0051] FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

[0052] FIG5 is a schematic diagram of the format of activating ul-powerControl through MAC CE according to an embodiment of the present application;

[0053] FIG6 is a flow chart of another communication method provided in an embodiment of the present application;

[0054] FIG7 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0055] FIG8 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0057] The technology provided by this application can be applied to various communication systems. For example, the communication system can be a fourth generation (4 th generation, 4G) communication systems (such as long term evolution (LTE) systems), fifth generation (5 th The 5G communication system may also be referred to as a new radio (NR) system.

[0058] A network element in a communication system can send signals to or receive signals from another network element. The signals may include information, signaling, or data. The network element can also be replaced by an entity, a network entity, a device, a terminal, a communication module, a node, a communication node, etc. The present application uses the network element as an example for description. For example, the communication system may include at least one terminal and at least one access network device. The access network device can send downlink signals to the terminal, and / or the terminal can send uplink signals to the access network device. In addition, it is understood that if the communication system includes multiple terminals, the multiple terminals can also send signals to each other, that is, the signal sending network element and the signal receiving network element can both be terminals.

[0059] The communication method provided in the embodiment of the present application can be applied to wireless communication systems such as 5G, future communication networks, and satellite communications. Referring to Figure 1, Figure 1 is a simplified schematic diagram of the wireless communication system provided in the embodiment of the present application. As shown in Figure 1, the wireless communication system includes a radio access network (RAN) 100. The radio access network 100 can be a next-generation radio access network, or a traditional (e.g., 5G, 4G) radio access network. One or more terminals (120a-120g, collectively referred to as 120) can be connected to each other, or connected to one or more network devices (110a~110c, collectively referred to as 110) in the radio access network 100, and the connection method can be wired or wireless. Optionally, Figure 1 is only a schematic diagram, and the wireless communication system may also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, which are not shown in Figure 1.

[0060] Optionally, in actual applications, the wireless communication system may include multiple network devices (also called access network devices) and multiple terminals at the same time. A network device can serve one or more terminals at the same time. A terminal can also access one or more network devices at the same time. The embodiments of the present application do not limit the number of terminals and network devices included in the wireless communication system.

[0061] The network device may be an entity on the network side for transmitting or receiving signals. The network device may be an access device for a terminal to access the wireless communication system in a wireless manner, such as a base station. Base station can broadly cover various names as follows, or be replaced with the following names, such as: RAN node, NodeB, evolved NodeB (eNB), next generation NodeB (gNB), satellite base station, access network equipment in open radio access network (O-RAN), relay station, access point, transmission point (TRP), transmitting point (TP), master eNB (MeNB), secondary eNB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, building baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), centralized unit (CU), distributed unit (DRU), etc. unit, DU), radio unit (radio unit, RU), centralized unit control plane (CU control plane, CU-CP) node, centralized unit user plane (CU user plane, CU-UP) node, positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The network device can also refer to a communication module, a modem or a chip for being set in the aforementioned device or apparatus. The network device can also be a mobile switching center and a device that performs the base station function in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network side device in a future communication network, and a device that performs the base station function in a future communication system. The network device can support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0062] Network devices can be fixed or mobile. For example, base stations 110b and 110c are stationary and are responsible for wireless transmission and reception in one or more cells from terminal 120. The helicopter or drone 120c shown in Figure 1 can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station 120c. In other examples, the helicopter or drone (120c) can be configured to act as a terminal communicating with satellite base station 110a.

[0063] In this application, the communication device used to implement the above-mentioned access network function can be an access network device, a network device having some of the access network functions, or a device capable of supporting the implementation of the access network function, such as a chip system, a hardware circuit, a software module, or a hardware circuit and a software module. The device can be installed in the access network device or used in combination with the access network device. In the method of this application, the communication device used to implement the access network device function is described as an access network device.

[0064] A terminal can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal can be used to connect people, objects and machines. The terminal can communicate with one or more core networks through network devices. The terminal includes a handheld device with wireless connection function, other processing devices connected to a wireless modem, or a vehicle-mounted device. The terminal can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device. The terminal 120 can be widely used in various scenarios, such as cellular communication, D2D, V2X, point-to-point (P2P), machine-to-machine (M2M), machine type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery and mobility, etc.Some examples of the terminal 120 include: user equipment (UE) of the 3GPP standard, fixed equipment, mobile equipment, handheld equipment, wearable equipment, cellular phones, smart phones, session initiated protocol (SIP) phones, laptops, personal computers, smart books, vehicles, satellites, global positioning system (GPS) equipment, target tracking equipment, drones, helicopters, aircraft, ships, remote control equipment, smart home equipment, industrial equipment, personal communication service (PCS) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), wireless network cameras, tablet computers, handheld computers, mobile internet devices (MIDs), wearable devices such as smart watches, VR devices, AR devices, wireless terminals in industrial control, terminals in vehicle networking systems, wireless terminals in self-driving cars, wireless terminals in smart grids, wireless terminals in transportation safety, and smart cities. The terminal 120 may be a wireless terminal in a smart city, such as a smart gas pump, a terminal on a high-speed rail, and a wireless terminal in a smart home, such as a smart speaker, a smart coffee machine, a smart printer, etc. The terminal 120 may be a wireless device in the above various scenarios or a device for being set in a wireless device, for example, a communication module, a modem or a chip in the above device. The terminal may also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal may also be a terminal in a future wireless communication system. The terminal may be used in a dedicated network device or a general-purpose device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0065] Alternatively, a terminal can function as a base station. For example, a UE can act as a dispatching entity, providing sidelink signals between UEs in V2X, D2D, or P2P scenarios. As shown in Figure 1, a cell phone 120a and a car 120b communicate with each other using sidelink signals. Cell phone 120a and smart home device 120e communicate without relaying the communication signals through base station 110b.

[0066] In this application, the communication device used to implement the terminal function can be a terminal, or a terminal with some of the functions of the above terminal, or a device that can support the implementation of the functions of the above terminal, such as a chip system, which can be installed in the terminal or used in conjunction with the terminal. In this application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. In the technical solution provided in this application, the communication device is described as a terminal or UE as an example.

[0067] Optionally, a wireless communication system is typically composed of cells, with base stations providing cell management and communication services to multiple mobile stations (MS) in the cell. The base station includes a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU can be placed in different locations, for example: the RRU is remote and placed in an area with high traffic volume, while the BBU is placed in a central computer room. The BBU and RRU can also be placed in the same computer room. The BBU and RRU can also be different components under the same rack. Optionally, a cell can correspond to a carrier or component carrier.

[0068] In some deployments, the network devices mentioned in the embodiments of this application may include a CU, a DU, a CU and a DU, or a CU-CP, a CU-UP, or a DU node. For example, the network devices may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0069] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes implementing portions of the base station's functionality. For example, a RAN node can be a CU, DU, CU-CP, CU-UP, or RU. The CU and DU can be separate or included in the same network element, such as the BBU. The RU can be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.

[0070] The RAN node may support one or more types of fronthaul interfaces, and different fronthaul interfaces correspond to DUs and RUs with different functions. If the fronthaul interface between the DU and the RU is a common public radio interface (CPRI), the DU is configured to implement one or more baseband functions, and the RU is configured to implement one or more radio frequency functions. If the fronthaul interface between the DU and the RU is another type of interface, relative to the CPRI, some of the downlink and / or uplink baseband functions, such as precoding, digital beamforming (BF), or one or more of inverse fast Fourier transform (IFFT) / cyclic prefix (CP) for downlink, are moved from the DU to the RU for implementation; and for uplink, one or more of digital beamforming (BF), or fast Fourier transform (FFT) / CP removal are moved from the DU to the RU for implementation. In one possible implementation, the interface may be an enhanced common public radio interface (eCPRI). In the eCPRI architecture, the division between the DU and RU is different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, and F.

[0071] Taking eCPRI Cat A as an example, for downlink transmission, based on layer mapping, the DU is configured to implement layer mapping and one or more functions preceding it (i.e., one or more of coding, rate matching, scrambling, modulation, and layer mapping). Other functions after layer mapping (e.g., RE mapping, digital beamforming (BF), or one or more of inverse fast Fourier transform (IFFT) / cyclic prefix (CP) addition) are moved to the RU for implementation. For uplink transmission, based on RE demapping, the DU is configured to implement demapping and one or more functions preceding it (i.e., one or more of decoding, rate matching, descrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and RE demapping). Other functions after demapping (e.g., one or more of digital BF or FFT / CP removal) are moved to the RU for implementation. It is understandable that for the functional description of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol, which will not be described in detail here.

[0072] In one possible design, the processing unit for implementing baseband functions in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing baseband functions in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0073] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0074] In the embodiments of the present application, the device for implementing the functions of the network device can be a network device; it can also be a device that can support the network device to implement the functions, such as a chip system, a hardware circuit, a software module, or a hardware circuit and a software module. The device can be installed in the network device or used in conjunction with the network device. In the embodiments of the present application, only the device for implementing the functions of the network device is used as an example to illustrate, and does not constitute a limitation on the solutions of the embodiments of the present application.

[0075] It is understandable that the present application can be applied between network devices and terminals.

[0076] The communication between the network device and the terminal follows a certain protocol layer structure. The protocol layer structure may include a control plane protocol layer structure and a user plane protocol layer structure. For example, the control plane protocol layer structure may include the functions of the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical layer. For example, the user plane protocol layer structure may include the functions of the PDCP layer, the RLC layer, the MAC layer, and the physical layer. In one possible implementation, a service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

[0077] Optionally, the protocol layer structure between the network device and the terminal may also include an artificial intelligence (AI) layer for transmitting data related to AI functions.

[0078] Taking data transmission between network devices and terminals as an example, data transmission needs to pass through the user plane protocol layers, such as the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer. The SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer can also be collectively referred to as the access layer. Data transmission is divided into sending or receiving based on the direction of transmission, and each of these layers is further divided into a sending part and a receiving part. Taking downlink data transmission as an example, after the PDCP layer obtains data from the upper layer, it transmits the data to the RLC layer and MAC layer. The MAC layer then generates a transport block, which is then wirelessly transmitted through the physical layer. Data is encapsulated accordingly in each layer. For example, data received by a layer from the layer above it is considered a service data unit (SDU) of that layer. After encapsulation by that layer, it becomes a protocol data unit (PDU) and is then passed to the next layer.

[0079] For example, a terminal may also have an application layer and a non-access layer. The application layer can be used to provide services to applications installed in the terminal. For example, downlink data received by the terminal can be sequentially transmitted from the physical layer to the application layer, and then provided to the application by the application layer. For another example, the application layer can obtain data generated by the application and sequentially transmit the data to the physical layer for transmission to other communication devices. The non-access layer can be used to forward user data, such as forwarding uplink data received from the application layer to the SDAP layer, or forwarding downlink data received from the SDAP layer to the application layer.

[0080] It should be understood that the number and type of each device in the communication system shown in Figure 1 are for illustration only, and the present application is not limited to this. In actual applications, the communication system may also include more terminals, more access network devices, and other network elements, such as core network devices, and / or network elements for implementing artificial intelligence functions.

[0081] It is understandable that all or part of the functions implemented by one or more of the terminals, access network devices, core network devices, or network elements for implementing artificial intelligence functions can be virtualized, that is, implemented by one or more of the proprietary processors or general-purpose processors and the corresponding software modules. Among them, since the terminal and the access network device involve an interface for air interface transmission, the transceiver function of the interface can be implemented by hardware. Core network equipment, such as operation administration and maintenance (OAM) network elements, can be virtualized. Optionally, one or more functions of the virtualized terminal, access network device, core network device, or network elements for implementing artificial intelligence functions can be implemented by cloud devices, such as cloud devices in an over the top (OTT) system.

[0082] Satellite communications have been introduced as a 5G communication scenario, known as non-terrestrial networks (NTNs). These networks can support not only various 5G terminals but also IoT-related terminals. Satellite communications offer unique advantages over terrestrial communications, such as wider coverage and reduced vulnerability to natural disasters and external forces. In the future, the integration of satellite communications into 5G communications could provide communication services in areas beyond the reach of terrestrial networks, such as oceans and forests. It could also enhance the reliability of 5G communications, providing higher-quality communication services for users on airplanes and trains. Furthermore, it could provide more data transmission resources for 5G communications, increasing network speeds. Therefore, supporting both terrestrial and satellite communications is an inevitable trend in future 5G communications, offering significant benefits in terms of wide coverage, reliability, multiple connections, and high throughput.

[0083] As shown in Figures 2a to 2c, this is a schematic diagram of the application scenario of the satellite-ground integrated network. The terminal on the ground can access the network through the air interface (the air interface can be various types of air interfaces, such as the 5G air interface). In Figure 2a, the base station can be deployed on the ground and connected to the ground station that communicates with the satellite; in Figure 2b, the base station can be deployed on the satellite. The satellite is connected to the ground station via a wireless link. The ground station and the ground base station are connected to the core network via wired or wireless. There can be a wireless link between satellites. If the satellite only has the transparent transmission and forwarding function (that is, the corresponding base station is deployed on the ground), only transparent transmission and forwarding are realized between satellites; if the base station or part of the base station function is deployed on the satellite, the satellites can complete the signaling interaction and user data transmission between base stations, as shown in Figure 2c.

[0084] First, the terms that may be involved in the embodiments of this application are explained:

[0085] (1) TCI state

[0086] A beam is a communication resource. A beam can be wide, narrow, or other types of beams. Beam formation can be achieved through beamforming or other techniques. Beamforming techniques include digital beamforming, analog beamforming, and hybrid digital / analog beamforming. Different beams can be considered different resources. Different beams can transmit the same or different information. Optionally, multiple beams with the same or similar communication characteristics can be considered a single beam. A beam can be formed by one or more antenna ports and used to transmit data channels, control channels, and sounding signals. The one or more antenna ports that form a beam can be considered an antenna port set.

[0087] Beams include transmit beams and receive beams. A transmit beam refers to the signal strength distribution in different directions after a signal is transmitted by an antenna. A receive beam refers to the distribution of wireless signals received by an antenna array in different directions, either strengthening or weakening them.

[0088] Currently, the Third Generation Partnership Project (3 rdIn the 3GPP NR protocol, beam information can be indicated by the quasi co-location (QCL) relationship of antenna ports. It is possible to indicate in indication information (for example, downlink control information (DCI)) that a resource (or antenna port) has a quasi co-location relationship with another resource (or antenna port) to indicate that the beams corresponding to the two resources (or antenna ports) have one or more identical or similar spatial characteristics (or parameters) and can be received using the same receive beam. The parameters may include one or more of the following: delay spread, Doppler spread, Doppler shift, average delay, and spatial Rx parameters. Among them, the spatial reception parameters may include one or more of the following: angle of arrival (AoA), average AoA, AoA spread, angle of departure (AoD), average AoD, AoD spread, receive antenna spatial correlation parameter, transmit antenna spatial correlation parameter, transmit beam, receive beam, and resource identifier. Currently, NR supports four QCL types, namely QCL-TypeA, QCL-TypeB, QCL-TypeC, and QCL-TypeD. Among them, QCL-TypeA corresponds to Doppler shift, Doppler spread, average delay, and delay spread; QCL-TypeB corresponds to Doppler shift and Doppler spread; QCL-TypeC corresponds to average delay and Doppler shift; and QCL-TypeD corresponds to Spatial Rx parameter.

[0089] The network uses TCI states to represent the QCL source reference signal (source RS) and the large-scale parameter QCL type that can be derived from it. Each TCI state can be configured with two source RS and QCL type pairs. According to TS38.331, the TCI state-state structure is as follows:

[0090] The TCI state indicates the large-scale characteristics that can be obtained from certain reference signals, namely the source RS and QCL type information. In addition, the protocol specifies the transmission configuration indication state configuration (TCI state configuration) available for each target reference signal. A target reference signal can be configured with multiple TCI state configurations. Specifically, the network device configures the TCI state it can use in the configuration of the target reference signal resource (corresponding to the channel state information-reference signal (CSI-RS)) or the configuration of the PDSCH / PDCCH (corresponding to the demodulation reference signal (DMRS)).

[0091] Among them, uplink power control parameters are defined in the TCI state.

[0092] When ul-powerControl is not configured in the Fractional Bandwidth - Uplink - Dedicated field, the TCI state includes the ul-powerControl field. The ul-powerControl field indicates an element in the uplink-power control to be added list (uplink-PowerControlToAddModList) configured for the serving cell configured in the downlink-or joint transmission configuration indication to be added list (dl-OrJointTCI state-StateToAddModList).

[0093] (2) Uplink Power Control Parameters

[0094] ul-powerControl includes the power control parameters of the physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), and sounding reference signal (SRS) configured in the TCI state. The specific configuration is as follows:

[0095] In particular, when the alpha field is missing from the uplink data channel power control parameter (p0AlphaSetforPUSCH), the UE may set the PUSCH power control parameter to 1. When the alpha field is missing from the sounding reference signal power control parameter (p0AlphasetforSRS), the UE may set the SRS power control parameter to 1. When the alpha field is missing from the uplink control channel power control parameter (p0AlpaSetForPUCCH), the UE may set the PUCCH power control parameter to 1.

[0096] Among them, the transmission power of PUSCH is P PUSCH,b,f,c (i,j,q d ,l) satisfies the following formula 1:

[0097] Among them, P CMAX,f,c is the output power of the terminal corresponding to carrier f and serving cell c; is the initial power value of PUSCH of partial bandwidth b, carrier f, and serving cell c; μ is the subcarrier spacing used by PUCCH; is the number of resource blocks of PUSCH resources allocated for transmission opportunity i on partial bandwidth b, carrier f, and serving cell c; b,f,c (j) is the compensation factor for path loss; PL b,f,c (q d ) is the estimated path loss on the partial bandwidth b, carrier f, and serving cell c; Δ TF,b,f,c (i) is the power parameter related to the modulation scheme on the partial bandwidth b, carrier f, and serving cell c; f b,f,c (i, l) are the parameters related to closed-loop power adjustment for transmission opportunity i on partial bandwidth b, carrier f, and serving cell c; l is the PUSCH power control adjustment state.

[0098] Among them, the transmission power of PUCCH is P PUCCH,b,f,c (i,q u ,q d ,l) satisfies the following formula 2:

[0099] in, is the output power of the PUCCH on the activated uplink portion of bandwidth b of carrier f in serving cell c; Δ is the number of resource blocks of PUCCH resources allocated for transmission opportunity i on the activated uplink portion of bandwidth b of carrier f of serving cell c; F_PUCCH(F) is the PUCCH transmission power adjustment value on the activated uplink bandwidth b of carrier f of serving cell c; g b,f,c (i, l) represents the current PUCCH power control adjustment state l on the activated uplink portion of bandwidth b of carrier f in serving cell c and the PUCCH power control adjustment state factor corresponding to PUCCH transmission opportunity i. The meanings of the remaining parameters are as described above and are not repeated here.

[0100] Among them, the transmission power of SRS P SRS,b,f,c (i,q s ,l) satisfies the following formula 3:

[0101] in, is the nominal power of the SRS, based on p0 of the activated uplink bandwidth b of carrier f for serving cell c, and the SRS resource set q provided by SRS-ResourceSet and SRS-ResourceSetId s ;M SRS,b,f,c (i) is the SRS bandwidth, expressed in the number of resource blocks, for SRS transmission opportunity i on the activated uplink portion of bandwidth b of carrier f serving cell c; α SRS,b,f,c (q s ) is the path loss compensation factor, which is based on the alpha and SRS resource set q on the activated uplink bandwidth b of carrier f of serving cell c. s h b,f,c (i, l) is the current PUCCH power control adjustment state l on the activated uplink bandwidth b of carrier f in serving cell c and the accumulated power control value of the SRS corresponding to PUCCH transmission opportunity i. The meanings of the remaining parameters can be found above and will not be repeated here.

[0102] In formula 1, α b,f,c (j) and the PUSCH power control adjustment state l are provided by p0AlphaSetforPUSCH in the corresponding indicated TCI state-state / TCI state-UL-State; in formula 2, The PUCCH power control adjustment state 1 is provided by p0AlphaSetforPUCCH in the corresponding indicated TCI state-state / TCI state-UL-State; in formula 3, α SRS,b,f,c (q s), SRS power control adjustment state 1 is provided by p0AlphaSetforSRS in the corresponding TCI state-state / TCI state-UL-TCI state-state.

[0103] (3) Configuration and activation of TCI state

[0104] The configuration and activation of TCI state is explained using PDSCH as an example. The information related to PDSCH channel and TCI state is as follows:

[0105] The network device can configure the TCI state information of up to 128 PDSCHs through radio resource control (RRC) signaling. If the TCI state information configured by the PDSCH is greater than 8, the TCI state information needs to be activated through the medium access control control element (MAC CE); if the TCI state information configured by the PDSCH is less than 8, the TCI state information will be directly indicated through the DCI. Among them, the TCI state activation or deactivation of the UE-specific PDCSH MAC CE is identified by the MAC subheader with a logical control identifier (LCID), as shown in Figure 3.

[0106] If there is a TCI state with the TCI state-State ID specified above, this field indicates the activation / deactivation status of the TCI state with TCI state-StateId i, otherwise the MAC entity ignores the Ti field. The Ti field is set to 1, indicating that the TCI state with TCI stateID i should be activated and mapped to the codepoint of the DCI transmission configuration indication field. The Ti field is set to 0, indicating that the TCI state with TCI stateID i should be deactivated and not mapped to the codepoint of the DCI transmission configuration indication field. The codepoint to which the TCI state is mapped is determined by the order of the TCI state sate with its Ti field set to 1, that is, the first TCI state with Ti field set to 1 should be mapped to codepoint value 0, the second TCI state with Ti field set to 1 should be mapped to codepoint value 1, and so on. The maximum number of activated TCI states is 8. An activated TCI state can be associated with at most one PCI that is different from the serving cell PCI at a time.

[0107] The TCI state may be a downlink transmission configuration identification state (DL TCI state), an uplink transmission configuration identification state (UL TCI state), or a joint transmission configuration identification state (joint TCI state) (used for both uplink and downlink).

[0108] Typically, the network allocates a maximum of 128 TCI states to a UE, including 64 UL-TCI states, corresponding to a maximum of 64 * 3 = 192 p0AlphaSet groups. However, during actual communication, the network can only activate a maximum of 8 TCI states, corresponding to a maximum of 8 * 3 = 24 p0AlphaSet groups.

[0109] Therefore, in the actual communication process of the terminal, usually only 8 ul-powercontrol parameters are needed at most, but the network side will configure up to 64 ul-powercontrol parameters during configuration, which will bring huge signaling overhead.

[0110] In the existing technology, ul-powercontrol is bound to TCI state, and one TCI state corresponds to only one ul-powercontrol, which has low flexibility. Moreover, when the relevant parameters of ul-powercontrol in the TCI state need to be changed, the TCI state usually needs to be reconfigured, which will bring additional overhead.

[0111] To this end, an embodiment of the present application provides a communication solution in which the uplink power control parameters and the transmission configuration indication are independently configured and / or activated, so that the uplink power control parameters can be activated separately, thereby improving the flexibility of configuration and / or activation and reducing signaling overhead.

[0112] 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:

[0113] S401. A terminal in a radio resource control-connected state (RRC_CONNECTED) sends a measurement report to a network device. Correspondingly, the network device receives the measurement report.

[0114] The network device sends a reference signal to the terminal. The terminal measures the received reference signal, generates a measurement report, and sends the measurement report to the network device, so that the network device can know the channel status between the terminal and the terminal.

[0115] Of course, in this embodiment, the execution of this step is not necessary. Therefore, it is represented and connected by a dotted line in the figure.

[0116] S402. The network device sends a radio resource control reconfiguration (RRC reconfiguration) instruction to the terminal. Correspondingly, the terminal receives the RRC reconfiguration.

[0117] The RRC reconfiguration includes up to 128 TCI states and up to 64 ul-powercontrol parameters. It can be seen that these multiple TCI states may not include the ul-powercontrol parameter, and these multiple TCI states and multiple ul-powercontrol parameters are configured independently.

[0118] This step is optional. In this embodiment, TCI state and ul-powercontrol may also be configured in other ways. Therefore, it is indicated by dotted lines in the figure.

[0119] S403. The terminal sends a radio resource control reconfiguration complete (RRC reconfiguration complete) message to the network device. Correspondingly, the network device receives the RRC reconfiguration complete message.

[0120] The RRC reconfiguration complete message is used to indicate that the terminal has successfully received the RRC reconfiguration and has completed the reconfiguration.

[0121] Of course, the terminal may not send the RRC reconfiguration complete message, and the network device may assume that the terminal has successfully received the RRC reconfiguration and has completed the reconfiguration. Therefore, this step is optional and is indicated by a dotted line in the figure.

[0122] S404. The network device sends a transmission configuration identifier state activation / deactivation (TCI state Activation / Deactivation) instruction to the terminal. Correspondingly, the terminal receives the TCI state Activation / Deactivation instruction.

[0123] The network device activates the TCI states to be used and sends a TCI state Activation / Deactivation instruction to the terminal. For example, the TCI state Activation / Deactivation instruction is used to instruct the activation of eight TCI states: TCI state #0 to TCI state #7.

[0124] Exemplarily, the TCI state Activation / Deactivation instruction may be MAC CE signaling. The MAC CE signaling is used to indicate the value of Ti corresponding to each of the multiple TCI states configured by the RRC reconfiguration, where a Ti value of "1" indicates activation of the TCI state corresponding to Ti; a Ti value of "0" indicates deactivation of the TCI state corresponding to Ti.

[0125] Furthermore, the terminal maps the eight TCI states to at least one second code point. For example, as shown in Table 1, the terminal maps the eight TCI states to codepoints#1:

[0126] Table 1

[0127] Among them, codepoints#1 includes 8 codepoints. The terminal maps the corresponding TCI state to these 8 codepoints in sequence according to the order of Ti with the value of "1".

[0128] This embodiment may not involve activation of the TCI state, or several TCI states may have been activated before implementing this embodiment. Therefore, this step is optional and is indicated by a dotted line in the figure.

[0129] S405: The network device sends the first information to the terminal. Correspondingly, the terminal receives the first information.

[0130] The network device activates the uplink power control parameters to be used and sends first information to the terminal. The first information may also be called an uplink power control parameter activation / deactivation instruction. The first information is used to activate at least one first uplink power control parameter.

[0131] Exemplarily, the first information may be MAC CE / RRC signaling, the format of which is shown in FIG5 . The activation method of ul-powercontrol is similar to the activation method of TCI state, and the MAC CE signaling is used to indicate the value of Pi corresponding to each ul-powercontrol in the multiple ul-powercontrols configured by the above-mentioned RRC reconfiguration, wherein the value of Pi is "1", indicating that the ul-powercontrol corresponding to the Pi is activated; the value of Pi is "0", indicating that the ul-powercontrol corresponding to the Pi is deactivated.

[0132] A network device can activate up to 8 ul-powercontrols.

[0133] Furthermore, the terminal maps at least one first uplink-power control parameter to at least one first code point. For example, as shown in Table 2, the terminal maps 8 uplink-power control parameters to corresponding code points #2:

[0134] Table 2

[0135] It can be understood that the at least one first code point to which the at least one first uplink power control parameter is mapped and the at least one second code point to which the at least one first TCI state is mapped are different.

[0136] It can be seen from steps S404 and S405 that the multiple TCI states and the multiple ul-powercontrols are activated independently, which improves the flexibility of the activation process.

[0137] For example, in step S402, the network device may configure no more than eight ul-powercontrols via an RRC reconfiguration command. Upon receiving the RRC reconfiguration command, the terminal directly maps the multiple ul-powercontrols configured by the network device to the code point, eliminating the need for the network device to activate multiple ul-powercontrols for use. The network device can then select the TCI state to activate based on the multiple ul-powercontrols corresponding to the code point. This allows the network device to update only the corresponding TCI state, rather than the ul-powercontrol corresponding to the code point, when a handover occurs.

[0138] S406: The network device sends the second information to the terminal. Correspondingly, the terminal receives the second information.

[0139] During actual scheduling, the network device sends the second information to the terminal.

[0140] Exemplarily, the second information may be DCI.

[0141] Exemplarily, the second information is used to indicate a third code point and a fourth code point. The third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

[0142] For example, the network device may add new indication information to the existing DCI signaling, such as adding three bits to indicate the required ul-powercontrol. For example, the network device may add three bits after the original three bits indicating codepoints to become xxxyyy, where the first three bits xxx indicate the TCI state and the last three bits are used to indicate ul-powercontrol.

[0143] It is understandable that this embodiment does not limit the order of "xxx" and "yyy" in the DCI, that is, it can be "xxxyyy" or "yyyxxx". It does not limit the position of "xxx" and "yyy" in the DCI.

[0144] S407. The terminal sends an uplink channel and / or an uplink reference signal according to the uplink power control parameter corresponding to the third code point.

[0145] The terminal may determine the uplink power control parameter corresponding to the third code point based on the third code point and Table 2. The terminal determines the uplink transmit power based on the uplink power control parameter corresponding to the third code point, and transmits an uplink channel (e.g., PUSCH, PUCCH) and / or an uplink reference signal (e.g., SRS) based on the uplink transmit power.

[0146] Furthermore, the terminal may also determine the TCI state corresponding to the fourth code point based on the fourth code point and Table 1. The terminal determines a transmit beam based on the TCI state corresponding to the fourth code point, and sends an uplink channel and / or an uplink reference signal based on the transmit beam.

[0147] According to a communication method provided by an embodiment of the present application, the uplink-power control parameter and the transmission configuration indication are independently configured and / or activated, so that the uplink-power control parameter can be activated separately, thereby improving the flexibility of configuration and / or activation and reducing signaling overhead.

[0148] In another embodiment, ul-powercontrol and TCI state may also be mapped to the same code point.

[0149] In the above steps S404 and S405, the terminal maps 8 TCI states and 8 ul-powercontrol to the same set of code points.

[0150] In addition, this embodiment does not limit the order in which TCI state and ul-powercontrol are mapped to code points. At least one ul-powercontrol may be mapped to a code point first, and then, based on the mapping relationship between ul-powercontrol and the code point, the TCI state may be mapped to the code point.

[0151] In step S406, the network device sends third information (eg, DCI) to the terminal, where the third information is used to indicate the fifth code point.

[0152] The terminal determines, based on the fifth code point indicated by the third information and a mapping relationship between ul-powercontrol, TCI state, and the code point, the ul-powercontrol and TCI state corresponding to the fifth code point, and transmits an uplink channel and / or an uplink reference signal based on the determined ul-powercontrol and TCI state.

[0153] In another embodiment, in the above step S402, when the network device configures the TCI state and ul-powercontrol parameters through the RRC reconfiguration instruction, the DL TCI state and the UL TCI state can be configured separately, as shown in Table 3 below:

[0154] Table 3

[0155] UL-powercontrol corresponds to the UL TCI state. As an alternative to steps S402 and S405 above, the network device can directly issue a list / set containing multiple UL-powercontrol identifiers. The terminal can map the at least one first UL-powercontrol to the at least one second codepoint based on the correspondence between the at least one uplink TCI state and the at least one second codepoint and the at least one first UL-powercontrol identifier.

[0156] Exemplarily, the ul-powercontrol is sequentially mapped to different ul-TCI states and their corresponding codepoints. For example, the network device directly issues ul-powercontrolsets = {ul-powercontrol ID#0, ul-powercontrol ID#1, ul-powercontrol ID#2, ul-powercontrol ID#3, ul-powercontrol ID#4}, where ul-powercontrol ID#0 corresponds to ul TCI state#y0, ul-powercontrol ID#1 corresponds to ul TCI state#y1, ul-powercontrol ID#2 corresponds to ul TCI state#y2, ul-powercontrol ID#3 corresponds to ul TCI state#y3, and ul-powercontrol ID#4 corresponds to ul TCI state#y4.

[0157] The uplink power control parameters mentioned above may further include at least one of the following: an uplink data channel power control parameter (p0AlphaSetforPUSCH), an uplink control channel power control parameter (p0AlpaSetForPUCCH), and an uplink reference signal power control parameter (p0AlphasetforSRS). The following describes in detail how to configure and / or activate each of the above power control parameters through embodiments:

[0158] As shown in Figure 6, a flow chart of another communication method provided in an embodiment of the present application is shown. Exemplarily, the method may include the following steps:

[0159] S601. A terminal in a radio resource control-connected state sends a measurement report to a network device. Correspondingly, the network device receives the measurement report.

[0160] For the specific implementation of this step, reference may be made to step S401 of the embodiment shown in FIG4 , and details thereof will not be repeated here.

[0161] S602. The network device sends a radio resource control reconfiguration (RRC reconfiguration) instruction to the terminal. Correspondingly, the terminal receives the radio resource control reconfiguration instruction.

[0162] In this embodiment, the uplink power control parameter may include at least one of the following: an uplink data channel power control parameter (p0AlphaSetforPUSCH), an uplink control channel power control parameter (p0AlpaSetForPUCCH), and an uplink reference signal power control parameter (p0AlphasetforSRS).

[0163] The RRC reconfiguration includes up to 128 TCI states and up to 64 sets of ul-powercontrol parameters, where each set of ul-powercontrol parameters includes at least one of p0AlphaSetforPUSCH, p0AlpaSetForPUCCH, and p0AlphasetforSRS. These multiple TCI states may not include the ul-powercontrol parameter; these multiple TCI states and multiple sets of ul-powercontrol parameters are configured independently.

[0164] S603. The terminal sends a radio resource control reconfiguration completion message to the network device. Correspondingly, the network device receives the radio resource control reconfiguration completion message.

[0165] The specific implementation of this step can refer to step S403 of the embodiment shown in FIG4 , and will not be described in detail here.

[0166] S604. The network device sends a TCI state activation / deactivation instruction to the terminal. Correspondingly, the terminal receives the TCI state activation / deactivation instruction.

[0167] The network device activates the TCI states to be used and sends a TCI state Activation / Deactivation instruction to the terminal. For example, the TCI state Activation / Deactivation instruction is used to instruct the activation of eight TCI states: TCI state #0 to TCI state #7.

[0168] For the specific implementation of this step, reference may be made to step S404 of the embodiment shown in FIG4 , and details thereof will not be repeated here.

[0169] S605: The network device sends the first information to the terminal. Correspondingly, the terminal receives the first information.

[0170] The network device activates at least one of an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter to be used, and sends first information to the terminal. The first information may also be referred to as an uplink power control parameter activation / deactivation instruction. The first information is used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, and at least one uplink reference signal power control parameter.

[0171] Exemplarily, the first information may be MAC CE or RRC signaling, etc.

[0172] For at least one p0AlphaSetforPUSCH configured in the RRC reconfiguration instruction in step S602, the first information is used to indicate the value of Pi corresponding to each p0AlphaSetforPUSCH configured in the RRC reconfiguration instruction. Wherein, the value of Pi is "1", indicating that the p0AlphaSetforPUSCH corresponding to the Pi is activated; the value of Pi is "0", indicating that the p0AlphaSetforPUSCH corresponding to the Pi is deactivated.

[0173] Similarly, for at least one p0AlphaSetforPUCCH configured in the RRC reconfiguration instruction in step S602, the first information is used to indicate the value of Pi corresponding to each p0AlphaSetforPUCCH configured in the RRC reconfiguration instruction. Wherein, if the value of Pi is "1", it indicates that the p0AlphaSetforPUCCH corresponding to Pi is activated; if the value of Pi is "0", it indicates that the p0AlphaSetforPUCCH corresponding to Pi is deactivated.

[0174] For at least one p0AlphaSetforSRS configured in the RRC reconfiguration instruction in step S602, the first information is used to indicate the value of Pi corresponding to each p0AlphaSetforSRS configured in the RRC reconfiguration instruction. Wherein, if the value of Pi is "1", it indicates that the p0AlphaSetforSRS corresponding to Pi is activated; if the value of Pi is "0", it indicates that the p0AlphaSetforSRS corresponding to Pi is deactivated.

[0175] The terminal maps the at least one activated TCI state to at least one second code point (Codepoint #1) in sequence, as shown in Table 4 below:

[0176] Table 4

[0177] The terminal maps at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS to at least one first code point (Codepoint#2) according to the order of at least one of the activated p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS, as shown in Table 5 below:

[0178] Table 5

[0179] Tables 3 and 4 illustrate that TCI states and ul-powercontrol (including at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS) are mapped to different code points.

[0180] TCI states and ul-powercontrol (including at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS) may also be mapped to the same set of code points.

[0181] S606: The network device sends the second information to the terminal. Correspondingly, the terminal receives the second information.

[0182] During actual scheduling, the network device sends the second information to the terminal.

[0183] Exemplarily, the second information may be DCI.

[0184] Exemplarily, the second information is used to indicate a third code point and a fourth code point. The third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

[0185] For example, the network device may add new indication information to the existing DCI signaling, such as adding three bits to indicate the ul-powercontrol to be used, where the ul-powercontrol includes at least one of the following parameters: p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS. For example, the network device may add three bits after the original three bits indicating codepoints to become xxxyyy, where the first three bits xxx indicate the TCI state and the last three bits are used to indicate the ul-powercontrol.

[0186] It is understandable that TCI states and ul-powercontrol can also be mapped to the same set of codepoints. The network device can then send third information (e.g., DCI) to the terminal, where the third information is used to indicate the fifth codepoint. The terminal determines the ul-powercontrol and TCI state corresponding to the fifth codepoint based on the fifth codepoint indicated by the third information and the mapping relationship between ul-powercontrol, TCI state, and codepoints. The ul-powercontrol includes at least one of the following parameters: p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS.

[0187] S607. The terminal determines a second TCI state corresponding to the fourth code point based on the fourth code point, and determines a transmission beam based on the second TCI state, where the second TCI state belongs to the at least one first TCI state.

[0188] The terminal determines, based on the fourth code point indicated by the second information, a second TCI state corresponding to the fourth code point, and determines a transmission beam based on the second TCI state, where the second TCI state belongs to the at least one first TCI state.

[0189] S608. The terminal determines at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter corresponding to the third code point based on the third code point, and determines at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter based on the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter.

[0190] The terminal determines an uplink power control parameter corresponding to the third code point according to the third code point indicated by the second information.

[0191] In one implementation, if at least one p0AlphaSetforPUSCH is configured in the RRC reconfiguration instruction in step S602, and the terminal maps the activated at least one p0AlphaSetforPUSCH to at least one first code point, the terminal determines the p0AlphaSetforPUSCH corresponding to the third code point according to the third code point indicated by the second information (the third code point belongs to at least one first code point), and determines the transmit power of the PUSCH based on the p0AlphaSetforPUSCH.

[0192] In another implementation, if at least one p0AlphaSetforPUCCH is configured in the RRC reconfiguration instruction in step S602, and the terminal maps the activated at least one p0AlphaSetforPUCCH to at least one first code point, the terminal determines the p0AlphaSetforPUCCH corresponding to the third code point according to the third code point indicated by the second information (the third code point belongs to at least one first code point), and determines the transmit power of the PUCCH based on the p0AlphaSetforPUCCH.

[0193] In another implementation, if at least one p0AlphaSetforSRS is configured in the RRC reconfiguration instruction in step S602, and the terminal maps the activated at least one p0AlphaSetforSRS to at least one first code point, the terminal determines the p0AlphaSetforSRS corresponding to the third code point according to the third code point indicated by the second information (the third code point belongs to at least one first code point), and determines the transmit power of the SRS based on the p0AlphaSetforSRS.

[0194] It is understandable that the above-mentioned multiple implementations can be implemented independently or in combination.

[0195] S609. The terminal transmits at least one of an uplink data channel, an uplink control channel, and an uplink reference signal based on the transmission beam and at least one of the transmission power of the uplink data channel, the transmission power of the uplink control channel, and the transmission power of the uplink reference signal.

[0196] In one implementation, the terminal determines a transmission beam and a transmit power of the PUSCH, and then transmits the PUSCH based on the transmission beam and the transmit power of the PUSCH.

[0197] In yet another implementation, the terminal determines a transmission beam and a transmit power of the PUCCH, and transmits the PUCCH based on the transmission beam and the transmit power of the PUCCH.

[0198] In yet another implementation, the terminal determines a transmission beam and a transmission power of the SRS, and then transmits the SRS based on the transmission beam and the transmission power of the SRS.

[0199] According to a communication method provided by an embodiment of the present application, uplink power control parameters and transmission configuration indications are independently configured and / or activated, so that the uplink power control parameters can be activated separately, thereby improving the flexibility of configuration and / or activation and reducing signaling overhead; the uplink power control parameters can further include at least one of the following: uplink data channel power control parameters, uplink control channel power control parameters, and uplink reference signal power control parameters, so that various uplink power control parameters can be further configured and / or activated.

[0200] In another embodiment, when the network device needs to update the ul-powercontrol (including at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS) corresponding to the codepoint (any one of the at least one first codepoint mentioned above, referred to herein as the sixth codepoint), the network device may send fourth information to the terminal, where the fourth information is used to indicate the sixth codepoint and the updated ul-powercontrol (specifically at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS). After receiving the fourth information, the terminal updates the ul-powercontrol corresponding to the sixth codepoint according to the fourth information.

[0201] In another embodiment, multi-transmission reception point (multi-TRP, m-TRP) technology uses multiple TRPs for joint transmission to improve coverage, throughput, and transmission reliability for cell-edge users. The terminal and the multiple TRPs can transmit the same data or different data. The multiple TRPs can be divided into ideal backhaul lines and non-ideal backhaul lines. The above embodiments in this application can also be applied to the m-TRP scenario.

[0202] For example, for TRP#1, the network device can activate TCI states and ul-powercontrol and map them to codepoint#1 and codepoint#2 respectively. For TRP#2, the network device can activate TCI states and ul-powercontrol and map them to codepoint#3 and codepoint#4 respectively. In order to distinguish the ul-powercontrol that needs to be activated under different TRPs, the network device can include first indication information in the above-mentioned first information for activating ul-powercontrol. The first indication information is used to indicate the TRP corresponding to at least one ul-powercontrol parameter. For example, the first indication information is 1 bit. When the first indication information is "1", it indicates that the currently activated ul-powercontrol parameter corresponds to TRP#1; when the first indication information is "0", it indicates that the currently activated ul-powercontrol parameter corresponds to TRP#2.

[0203] For another example, for TRP#1, the network device can activate TCI states and ul-powercontrol and map them to a set of codepoints. For TRP#2, the network device can activate TCI states and ul-powercontrol and map them to another set of codepoints. In order to distinguish the ul-powercontrol that needs to be activated under different TRPs, the network device can include first indication information in the above-mentioned first information for activating ul-powercontrol. The first indication information is used to indicate the TRP corresponding to at least one first ul-powercontrol parameter. For example, the first indication information is 1 bit. When the first indication information is "1", it indicates that the currently activated ul-powercontrol parameter corresponds to TRP#1; when the first indication information is "0", it indicates that the currently activated ul-powercontrol parameter corresponds to TRP#2.

[0204] It can be understood that in the above embodiments, the methods and / or steps implemented by the terminal can also be implemented by components used for the terminal (such as chips or circuits); the methods and / or steps implemented by the network device can also be implemented by components used for the network device (such as chips or circuits).

[0205] The above description mainly describes the solutions provided by the embodiments of the present application from the perspective of the interaction between a terminal and a network device. Accordingly, the embodiments of the present application also provide a communication device, which is used to implement the various methods described above. The communication device can be the terminal in the above method embodiments, or a component that can be used for a terminal; alternatively, the communication device can be the network device in the above method embodiments, or a component that can be used for a network device. It will be understood that, in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to performing each function. Those skilled in the art will readily appreciate that, in combination with the various exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or in a hardware-driven manner by computer software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0206] In the embodiment of the present application, the functional modules of the communication device can be divided 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 unit. The above integrated modules 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 functional division. In actual implementation, there may be other division methods.

[0207] Based on the same concept of the above communication method, the present application also provides the following communication device:

[0208] As shown in FIG7 , a schematic diagram of the structure of a communication device provided in an embodiment of the present application is shown. The communication device 700 includes a transceiver unit 701 and a processing unit 702 .

[0209] When the communication device is used to implement the functions of the terminal in the above method embodiment, the transceiver unit 701 is used to execute one or more of the operations performed by the terminal in steps S401 to S407 in the embodiment as shown in Figure 4; or, the transceiver unit 701 is used to execute one or more of the operations performed by the terminal in steps S601 to S606 and S609 in the embodiment as shown in Figure 6, and the processing unit 702 is used to execute one or more of steps S607 and S608 in the embodiment as shown in Figure 6.

[0210] When the communication device is used to implement the functions of the network device in the above method embodiment, the transceiver unit 701 is used to execute one or more of the operations performed by the network device in steps S401 to S407 in the embodiment as shown in Figure 4; or, the transceiver unit 701 is used to execute one or more of the operations performed by the network device in steps S601 to S606 and S609 in the embodiment as shown in Figure 6.

[0211] For the specific implementation of the above-mentioned transceiver unit 701 and the processing unit 702, reference may be made to the description in the above-mentioned method embodiment.

[0212] As shown in Figure 8, it is a structural diagram of another communication device provided in an embodiment of the present application, and the communication device 800 includes one or more processors 801 (one processor is illustrated in the figure). Optionally, the communication device 800 may further include an interface circuit 802 (represented by a dotted line in the figure), and the processor 801 and the interface circuit 802 are coupled to each other. It is understandable that the interface circuit 802 can be a transceiver or an input / output interface. Optionally, the communication device 800 may further include a memory 803 (represented by a dotted line in the figure). The memory 803 is used to store instructions executed by the processor 801, or to store input data required for the processor 801 to run the instruction, or to store data generated after the processor 801 runs the instruction.

[0213] In which, when the communication device is used to implement the function of the terminal in the above method embodiment, the interface circuit 802 is used to execute one or more of the operations performed by the terminal in steps S401 to S407 in the embodiment shown in Figure 4; or, the interface circuit 802 is used to execute one or more of the operations performed by the terminal in steps S601 to S606 and S609 in the embodiment shown in Figure 6, and the processor 801 is used to execute one or more of steps S607 and S608 in the embodiment shown in Figure 6.

[0214] When the communication device is used to implement the functions of the network device in the above method embodiment, the interface circuit 802 is used to execute one or more of the operations performed by the network device in steps S401 to S407 in the embodiment as shown in Figure 4; or, the interface circuit 802 is used to execute one or more of the operations performed by the network device in steps S601 to S606 and S609 in the embodiment as shown in Figure 6.

[0215] When the communication device is a chip used in a terminal, the chip implements the terminal functions in the above method embodiments. The chip receives information from other modules in the terminal (such as a radio frequency module or antenna), which is information sent by the network device to the terminal; or the chip sends information to other modules in the terminal (such as a radio frequency module or antenna), which is information sent by the terminal to the network device.

[0216] When the communication device is a chip used in a network device, the chip implements the functions of the network device in the above method embodiments. The chip receives information from other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the terminal to the network device; or the chip sends information to other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal.

[0217] In addition, it should be noted that the aforementioned transceiver unit and / or processing unit may be implemented through virtual modules, for example, the processing unit may be implemented through a software function unit or a virtual device, and the transceiver unit may be implemented through a software function or a virtual device. Alternatively, the processing unit or transceiver unit may also be implemented through a physical device, for example, if the device is implemented using a chip / chip circuit, the transceiver unit may 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.

[0218] The division of modules in this application is illustrative and represents only a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the examples of this application may be integrated into a single processor, exist physically as separate modules, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in either hardware or software functional modules.

[0219] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be 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.

[0220] 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.

[0221] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method in the above embodiment.

[0222] An embodiment of the present application also provides a communication system, including the above-mentioned communication device.

[0223] 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.

[0224] When the above-mentioned communication device is a module applied to a network device, the network device module implements the functions 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 terminal 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 terminal. 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 O-RAN architecture, such as an open CU, open DU and other devices.

[0225] 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.

[0226] In this application, a 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 circuitry in the aforementioned devices used to implement processing functions, which may implement or execute the various 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 methods disclosed in this application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0227] 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.

[0228] Optionally, an embodiment of the present application further provides a chip system, comprising: at least one processor and an interface, wherein the at least one processor is coupled to a memory via the interface, and when the at least one processor executes a computer program or instruction in the memory, the chip system executes the 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 embodiments of the present application.

[0229] The memory in the present application may also be a circuit or any other device capable of implementing a storage function for storing program instructions and / or data. A memory is any other medium that can be used to carry or store a 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), or a volatile memory, such as a random-access memory (RAM).

[0230] The terms "including" and "having" and any variations thereof mentioned in the above description of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units that are not listed, or optionally includes other steps or units that are inherent to these processes, methods, products or devices. It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any method or design described in this application as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other methods or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way.

[0231] It should be understood that in the description of this application, unless otherwise specified, " / " indicates that the objects associated with each other are in an "or" relationship. For example, A / B can mean A or B; where A and B can be singular or plural. Also, in the description of this application, unless otherwise specified, "multiple" means 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 or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural. In addition, to facilitate the clear description of the technical solutions of the embodiments of this application, in the embodiments of this application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity or execution order, and words such as "first" and "second" do not necessarily mean different. At the same time, in the embodiments of this 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 this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0232] 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 can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can 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 can be transmitted from one website, computer, network device or data center to another website, computer, network device or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0233] Although the present application is described herein with reference to various embodiments, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims in the course of practicing the claimed application. In the claims, a single processor or other unit may implement several functions recited in the claim. The fact that certain measures are recited in different dependent claims does not mean that these measures cannot be combined to produce advantageous effects.

[0234] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

[0235] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0236] The components in the device of the embodiment of the present application can be merged, divided, or 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.

[0237] In this application, under the premise of no logical contradiction, the examples can reference each other, for example, the methods and / or terms between method embodiments can reference each other, for example, the functions and / or terms between device embodiments can reference each other, for example, the functions and / or terms between device examples and method examples can reference each other.

Claims

1. A communication method, characterized in that, The method includes: Receiving first information for activating at least one first uplink - power control parameter; Mapping the at least one first uplink - power control parameter to at least one first code point; Wherein, the at least one first uplink - power control parameter and at least one first transmission configuration indication state (TCI state) are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

2. The method according to claim 1, wherein, The at least one first uplink - power control parameter and the at least one first TCI state are mapped to different code points, and the method further includes: Receiving second information for indicating a third code point and a fourth code point, where the third code point belongs to the at least one first code point and the fourth code point belongs to the at least one second code point.

3. The method according to claim 1, wherein The at least one first uplink - power control parameter and the at least one first TCI state are mapped to the same code point, and the method further includes: Receiving third information for indicating a fifth code point, where the fifth code point belongs to the at least one first code point or the at least one second code point.

4. The method according to claim 3, wherein At least one first downlink TCI state is independently configured from at least one first uplink TCI state, and the first information includes an identifier of the at least one first uplink - power control parameter; The mapping of the at least one first uplink - power control parameter to at least one first code point includes: According to the correspondence between the at least one uplink TCI state and the at least one second code point, and the identifier of the at least one first uplink - power control parameter, mapping the at least one first uplink - power control parameter to at least one second code point.

5. The method according to any one of claims 1 to 4, characterized in that The uplink - power control parameter includes at least one of the following: uplink data channel power control parameter, uplink control channel power control parameter, uplink reference signal power control parameter; The first information is respectively used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, at least one uplink reference signal power control parameter.

6. The method according to claim 5, wherein The method further includes: Based on the fourth code point, determining a second TCI state corresponding to the fourth code point, and based on the second TCI state, determining a transmission beam, where the second TCI state belongs to the at least one first TCI state; Based on the third code point, determining at least one of an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter corresponding to the third code point, and based on at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter, respectively determining at least one of the transmission power of the uplink data channel, the transmission power of the uplink control channel, and the transmission power of the uplink reference signal; Transmit at least one of an uplink data channel, an uplink control channel, and an uplink reference signal respectively based on at least one of the transmit power of the transmission beam and the uplink data channel, the transmit power of the uplink control channel, and the transmit power of the uplink reference signal.

7. The method according to claim 5 or 6, characterized in that, The method further includes: Receiving fourth information for indicating a sixth code point and updated uplink-power control parameters, where the sixth code point belongs to the at least one first code point; Updating the uplink-power control parameters corresponding to the sixth code point.

8. The method according to any one of claims 1-7, characterized in that, The first information includes first indication information for indicating a transmission and reception point corresponding to at least one first uplink-power control parameter.

9. A communication method, characterized in that, The method includes: Transmitting first information for activating at least one first uplink-power control parameter; where the at least one first uplink-power control parameter and at least one first transmission configuration indication state TCI state are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

10. The method according to claim 9, characterized in that, The at least one first uplink-power control parameter and the at least one first TCI state are mapped to different code points, and the method further includes: Transmitting second information for indicating a third code point and a fourth code point, where the third code point belongs to the at least one first code point and the fourth code point belongs to the at least one second code point.

11. The method according to claim 9, wherein The at least one first uplink-power control parameter and the at least one first TCI state are mapped to the same code point, and the method further includes: Transmitting third information for indicating a fifth code point, where the fifth code point belongs to the at least one first code point or the at least one second code point.

12. The method according to any one of claims 9-11, characterized in that, The uplink-power control parameters include at least one of the following: an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter; The first information is respectively used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, and at least one uplink reference signal power control parameter.

13. The method according to any one of claims 9-12, characterized in that, The method further includes: Transmitting fourth information for indicating a sixth code point and updated uplink-power control parameters, where the sixth code point belongs to at least one first code point.

14. The method according to any one of claims 9-13, characterized in that, The first information includes first indication information for indicating a transmission and reception point corresponding to at least one first uplink-power control parameter.

15. A communication device, characterized in that, Including a transceiver unit and a processing unit; where: The transceiver unit is configured to receive first information for activating at least one first uplink-power control parameter; The processing unit is configured to map the at least one first uplink-power control parameter to at least one first code point; where the at least one first uplink-power control parameter and at least one first transmission configuration indication state TCI state are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

16. The device according to claim 15, characterized in that, The at least one first uplink - power control parameter and the at least one first TCI state are mapped to different code points; The transceiver unit is further configured to receive second information, where the second information is used to indicate a third code point and a fourth code point, the third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

17. The device according to claim 15, characterized in that, The at least one first uplink - power control parameter and the at least one first TCI state are mapped to the same code point; The transceiver unit is further configured to receive third information, where the third information is used to indicate a fifth code point, and the fifth code point belongs to the at least one first code point or the at least one second code point.

18. The device according to claim 17, wherein At least one first downlink TCI state is independently configured with at least one first uplink TCI state, and the first information includes an identifier of the at least one first uplink - power control parameter; The processing unit is configured to map the at least one first uplink - power control parameter to at least one second code point according to the corresponding relationship between the at least one uplink TCI state and the at least one second code point, and the identifier of the at least one first uplink - power control parameter.

19. The device according to any one of claims 15 - 18, characterized in that, The uplink - power control parameter includes at least one of the following: an uplink data channel power control parameter, an uplink control channel power control parameter, an uplink reference signal power control parameter; The first information is respectively used to activate at least one of the following power control parameters: at least one uplink data channel power control parameter, at least one uplink control channel power control parameter, at least one uplink reference signal power control parameter.

20. The apparatus according to claim 19, wherein: The processing unit is further configured to determine a second TCI state corresponding to the fourth code point based on the fourth code point, and determine a transmission beam based on the second TCI state, where the second TCI state belongs to the at least one first TCI state; The processing unit is further configured to determine at least one of an uplink data channel power control parameter, an uplink control channel power control parameter, and an uplink reference signal power control parameter corresponding to the third code point based on the third code point, and respectively determine at least one of the transmission power of the uplink data channel, the transmission power of the uplink control channel, and the transmission power of the uplink reference signal based on at least one of the uplink data channel power control parameter, the uplink control channel power control parameter, and the uplink reference signal power control parameter; The transceiver unit is further configured to respectively transmit at least one of an uplink data channel, an uplink control channel, and an uplink reference signal based on the transmission beam and at least one of the transmission power of the uplink data channel, the transmission power of the uplink control channel, and the transmission power of the uplink reference signal.

21. The apparatus according to claim 19 or 20, wherein: The transceiver unit is further configured to receive fourth information, where the fourth information is used to indicate a sixth code point and an updated uplink - power control parameter, and the sixth code point belongs to the at least one first code point; The processing unit is further configured to update the uplink power control parameter corresponding to the sixth code point.

22. The device according to any one of claims 15-21, characterized in that The first information includes first indication information, and the first indication information is used to indicate a transmission reception point corresponding to at least one first uplink power control parameter.

23. A communication device, characterized in that, The device includes a transceiver unit and a processing unit; wherein: The processing unit is configured to generate first information, and the first information is used to activate at least one first uplink power control parameter. The transceiver unit is configured to send the first information. Wherein, the at least one first uplink power control parameter and at least one first transmission configuration indication state (TCI state) are independently configured and / or activated, and the at least one first TCI state is mapped to at least one second code point.

24. The device according to claim 23, characterized in that, The at least one first uplink power control parameter and the at least one first TCI state are mapped to different code points. The transceiver unit is further configured to send second information, and the second information is used to indicate a third code point and a fourth code point, the third code point belongs to the at least one first code point, and the fourth code point belongs to the at least one second code point.

25. The device according to claim 23, wherein The at least one first uplink power control parameter and the at least one first TCI state are mapped to the same code point. The transceiver unit is further configured to send third information, and the third information is used to indicate a fifth code point, and the fifth code point belongs to the at least one first code point or the at least one second code point.

26. A communication system, characterized in that, It includes a terminal and a network device, the terminal is configured to execute the method according to any one of claims 1-8, and the network device is configured to execute the method according to any one of claims 9-14.

27. A communication device, characterized in that, It includes a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that when the processor executes the computer program, it implements the method according to any one of claims 1-8, or implements the method according to any one of claims 9-14.

28. A computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed, it executes the method according to any one of claims 1-14.

29. A computer program product containing instructions, when the instructions run on a communication device, enabling the communication device to execute the method according to any one of claims 1-14.

30. A chip, characterized in that, The chip is coupled to the memory, and the chip is used to execute the method according to any one of claims 1-14.

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