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

Abstract

The invention discloses a communication method, device and system, a chip, a storage medium and a program product. The method comprises: a network device sending first information to a terminal, the first information being used for activating at least one first uplink-power control parameter; the terminal maps 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 the 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. By adopting the scheme of the invention, 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 independently activated, the configuration and / or activation flexibility is improved, and the signaling overhead is reduced.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a communication method, apparatus, system, chip, storage medium, and program product. Background Art

[0002] In the actual communication process of a terminal, usually only up to 8 uplink-power control (ul-powercontrol) parameters are required, but when the network side configures, up to 64 ul-powercontrol parameters may be configured, which will bring a great deal of signaling overhead.

[0003] Moreover, in the prior art, ul-powercontrol is bound to the transmission configuration indicator (TCI) state, and one TCI state only corresponds to one ul-powercotnrol, with low flexibility; and when it is necessary to change the relevant parameters of ul-powercontrol in the TCI state, usually the TCI state needs to be reconfigured, which will bring additional overhead. Summary of the Invention

[0004] This application provides a communication method, apparatus, system, chip, storage medium, and program product to improve the flexibility of configuration and / or activation and reduce signaling overhead.

[0005] In a first aspect, a communication method is provided. The method includes: receiving first information for activating 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.

[0006] 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, improving the flexibility of configuration and / or activation and reducing signaling overhead.

[0007] In a 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 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.

[0008] 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.

[0009] In yet another possible implementation, at least one first downlink TCI state is configured independently of at least one first uplink TCI state, and the first information includes an 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 first code point includes: mapping the at least one first uplink-power control parameter to at least one first code point according to 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.

[0010] In this implementation, ul-powercontrol corresponds to the UL TCI state. The network device can directly send down a list / set that contains identifiers of multiple ul-powercontrols. The terminal can map at least one first ul-powercontrol to at least one second code point according to the correspondence between at least one uplink TCI state and at least one second code point, and the identifier of at least one first ul-powercontrol. Thereby, the processing efficiency is improved.

[0011] In yet 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, 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.

[0012] In yet another possible implementation, the method further includes: determining, based on the fourth code point, a second TCI state corresponding to the fourth code point, and determining, based on the second TCI state, a transmission beam, where the second TCI state belongs to the at least one first TCI state; determining, based on the third code point, 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 determining, 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, at least one of a transmission power of the uplink data channel, a transmission power of the uplink control channel, and a transmission power of the uplink reference signal, respectively; and transmitting at least one of the uplink data channel, the uplink control channel, and the uplink reference signal, respectively, 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.

[0013] In yet another possible implementation, the method further includes: receiving 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; and updating the uplink power control parameter corresponding to the sixth code point.

[0014] In yet another possible implementation, the first information includes first indication information, where the first indication information is used to indicate a transmission reception point corresponding to at least one first uplink power control parameter.

[0015] Exemplarily, 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.

[0016] In a second aspect, a communication method is provided, where the method includes: transmitting first information, where the first information is used to activate at least one first uplink power control parameter; where 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.

[0017] In this aspect, the uplink power control parameter and the transmission configuration indication are independently configured and / or activated. Thus, the uplink power control parameter can be activated separately, improving the flexibility of configuration and / or activation and reducing signaling overhead.

[0018] In a 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, 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.

[0019] 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.

[0020] In yet 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, 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.

[0021] 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 the at least one first code point.

[0022] In yet another possible implementation, the first information includes first indication information, and the first indication information is used to indicate a transmission and reception point corresponding to the at least one first uplink-power control parameter.

[0023] Exemplarily, 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 for a network device.

[0024] In a third aspect, a communication device is provided for implementing the communication method in the first aspect or any implementation of the first aspect. The device may 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 the terminal. In one implementation, the communication device may include a sending unit, a receiving unit, and may further include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiving unit").

[0025] Fourthly, a communication device is provided for implementing the communication method in the second aspect or any implementation of the second aspect. The device may be a network device, or a module applied to a network device (such as a processor, a chip, or a chip system, etc.), or a logical node, a logical module, or software capable of implementing 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 further include a processing unit. The sending unit and the receiving unit may be independent or integrated together (which may be referred to as a "transceiving unit").

[0026] In a possible implementation, the communication devices in the third aspect to the fourth aspect include modules for respectively executing the methods in any aspect or any implementation of the first aspect and the second aspect.

[0027] Wherein, when the communication device is used to implement the method in the first aspect or any implementation of the first aspect, the transceiving 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.

[0028] 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 transceiving unit is further used to receive 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.

[0029] 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 transceiving unit is further used to receive 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.

[0030] Optionally, the at least one first uplink-power control parameter is independently configured with at least one downlink-power control parameter, 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 according to 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.

[0031] Optionally, 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.

[0032] Optionally, the processing unit is further configured to determine, based on the fourth code point, a second TCI state corresponding to 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, based on the third code point, 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 determine, 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, at least one of a transmission power of the uplink data channel, a transmission power of the uplink control channel, and a transmission power of the uplink reference signal; and the transceiver unit is further configured to 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.

[0033] Optionally, 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; and the processing unit is further configured to update the uplink power control parameter corresponding to the sixth code point.

[0034] Optionally, the first information includes first indication information, where the first indication information is used to indicate a transmission reception point corresponding to at least one first uplink power control parameter.

[0035] Wherein, when the communication device is used to implement the method described in the second aspect or any implementation manner of the second aspect, the transceiver unit is configured to send first information, where 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.

[0036] 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 configured 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.

[0037] 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 configured 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.

[0038] 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 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.

[0039] Optionally, the transceiver unit is further configured 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 the at least one first code point.

[0040] Optionally, the first information includes first indication information, where the first indication information is used to indicate a transmission and reception point corresponding to the at least one first uplink-power control parameter.

[0041] In another possible implementation, the communication device in the above third aspect to the fourth aspect includes a processor coupled to a memory; the processor is configured to implement the corresponding functions of the device in the above communication method. The memory is used to be coupled to the processor and stores the necessary programs (instructions) and / or data of the device. Optionally, the communication device may further include a communication interface for implementing communication between the device and other network elements. Optionally, the memory may be located inside the communication device or outside the communication device.

[0042] In yet another possible implementation, the communication device in the above third to fourth aspects includes a processor and a transceiver device. The processor is coupled to the transceiver device. The processor is configured to execute a computer program or instructions to control the transceiver device to receive and transmit information. When the processor executes the computer program or instructions, the processor is further configured to implement the above method through a logic circuit or by executing code instructions. Wherein, the transceiver device may be a transceiver, a transceiver circuit, or an input / output interface, and is configured to receive signals from other communication devices outside the communication device and transmit them to the processor, or transmit signals from the processor to other communication devices outside the communication device. When the communication device is a chip, the transceiver device is a transceiver circuit or an input / output interface.

[0043] When the communication device in the above third to fourth aspects 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; the receiving unit may be a receiver or a receiver.

[0044] In a fifth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed, the methods described in the above aspects are implemented.

[0045] In a sixth aspect, a computer program product containing instructions is provided. When the instructions run on a communication device, the communication device is caused to execute the methods described in the above aspects.

[0046] In a seventh aspect, a communication system is provided. The communication system includes the communication device described in the third aspect and the communication device described in the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 FIG. 18 is a simplified schematic diagram of a wireless communication system provided by an embodiment of the present application;

[0048] Figures 2a - 2c FIG. 22 is a schematic diagram of an application scenario of a space-ground integrated network;

[0049] Figure 3 FIG. 26 is a schematic diagram of a format for activating a TCI state through a MAC CE in the prior art;

[0050] Figure 4 FIG. 30 is a schematic flowchart of a communication method provided by an embodiment of the present application;

[0051] Figure 5Schematic diagram of the format for activating ul - powerControl through MAC CE in the embodiments of the present application;

[0052] Figure 6 Schematic flowchart of another communication method provided by the embodiments of the present application;

[0053] Figure 7 Schematic structural diagram of a communication device provided by the embodiments of the present application;

[0054] Figure 8 Schematic structural diagram of another communication device provided by the embodiments of the present application. Detailed implementation manners

[0055] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0056] The technology provided by the present application can be applied to various communication systems. For example, the communication system can be a fourth - generation (4 th generation, 4G) communication system (such as a long - term evolution (LTE) system), a fifth - generation (5 th generation, 5G) communication system, worldwide interoperability for microwave access (WiMAX), a wireless local area network (WLAN) system, a fusion system of multiple systems, or a future communication system, such as a sixth - generation (6 th generation, 6G) communication system, etc. Among them, the 5G communication system can also be referred to as a new radio (NR) system.

[0057] A network element in a communication system can send a signal to another network element or receive a signal from another network element. The signal can include information, signaling, data, etc. Herein, the network element can also be replaced with an entity, a network entity, a device, a terminal, a communication module, a node, a communication node, etc. In the present application, the network element is taken as an example for description. For example, a communication system can include at least one terminal and at least one access network device. The access network device can send a downlink signal to the terminal, and / or the terminal can send an uplink signal to the access network device. In addition, it can be understood that if there are multiple terminals in the communication system, signals can also be sent between the multiple terminals, that is, both the signal - sending network element and the signal - receiving network element can be terminals.

[0058] The communication method provided by the embodiments of the present application can be applied to wireless communication systems such as 5G, 6G, and satellite communication. SeeFigure 1 , Figure 1 is a simplified schematic diagram of the wireless communication system provided by the embodiments of the present application. As Figure 1 shown, the wireless communication system includes a radio access network (RAN) 100. The radio access network 100 may be a next-generation (e.g., 6G or higher) wireless access network or a traditional (e.g., 5G, 4G) wireless access network. One or more terminals (120a-120g, collectively referred to as 120) may be connected to each other or to one or more network devices (110a-110c, collectively referred to as 110) in the radio access network 100, and the connection method may be wired or wireless. Optionally, Figure 1 merely for illustration, other devices may also be included in the wireless communication system, such as core network devices, wireless relay devices, and / or wireless backhaul devices, etc., which are not drawn in Figure 1 .

[0059] Optionally, in practical applications, the wireless communication system may include multiple network devices (also referred to as access network devices) at the same time, or may include multiple terminals at the same time. One network device may serve one or more terminals at the same time. One terminal may 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.

[0060] Among them, a network device can be an entity on the network side for transmitting or receiving signals. The network device can be an access device for a terminal to access the wireless communication system wirelessly. For example, the network device can be a base station. The base station can generally cover various names in the following, or be replaced with the following names. For example: RAN node, Node B, evolved Node B (eNB), next generation Node B (gNB), satellite base station, access network device in open radio access network (O-RAN), relay station, access point, transmitting and receiving 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 (DU), radio unit (RU), centralized unit control plane (CU-CP) node, centralized unit user plane (CU-UP) node, positioning node, etc. The base station can be a macro base station, micro base station, relay node, donor node or the like, or a combination thereof. The network device can also refer to a communication module, a modem or a chip disposed in the foregoing device or apparatus. The network device can also be a mobile switching center and a device that undertakes the function of a base station in device-to-device (D2D), vehicle-to-everything (V2X), machine-to-machine (M2M) communication, a network side device in a 6G network, a device that undertakes the function of a base station in a future communication system, etc. The network device can support networks with the same or different access technologies. Embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network device.

[0061] The network device 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. Figure 1 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 position of the mobile base station 120c. In other examples, the helicopter or drone (120c) can be configured to be used as a terminal communicating with the satellite base station 110a.

[0062] In this application, the communication device for implementing the above access network function can be an access network device, or a network device with partial functions of the access network, 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 combination of a hardware circuit and a software module. This 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 for implementing the function of the access network device is taken as an example of the access network device for description.

[0063] 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, things, and machines. The terminal can communicate with one or more core networks through network devices. The terminal includes handheld devices with wireless connection capabilities, other processing devices connected to wireless modems, or in-vehicle devices, etc. The terminal can be a portable, pocket-sized, handheld, computer-integrated, or in-vehicle mobile device. The terminal 120 can be widely applied in various scenarios, such as cellular communication, D2D, V2X, end-to-end (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 wearables, 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 are: user equipment (UE) compliant with the 3GPP standard, fixed equipment, mobile equipment, handheld equipment, wearable equipment, cellular phone, smart phone, session initiated protocol (SIP) phone, laptop computer, personal computer, smart book, vehicle, satellite, global positioning system (GPS) device, target tracking device, drone, helicopter, aircraft, ship, remote control device, smart home equipment, industrial equipment, personal communication service (PCS) phone, wireless local loop (WLL) station, personal digital assistant (PDA), wireless network camera, tablet computer, palmtop computer, mobile internet device (MID), wearable equipment such as smart watch, VR device, AR device, wireless terminal in industrial control, terminal in vehicle-to-everything (V2X) system, wireless terminal in self-driving, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city such as smart fuel dispenser, terminal on high-speed train, and wireless terminal in smart home, such as smart speaker, smart coffee maker, smart printer, etc. The terminal 120 can be a wireless device in the above various scenarios or a device for being disposed in a wireless device. For example, a communication module, a modem or a chip in the above devices, etc. The terminal can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal can also be a terminal in a future wireless communication system. The terminal can be used in a private network device or a general device. Embodiments of the present application do not limit the specific technologies and specific device forms adopted by the terminal.

[0064] Optionally, the terminal can be used to act as a base station. For example, a UE can act as a scheduling entity that provides sidelink signals between UEs in V2X, D2D or P2P, etc. As Figure 1 shown, the cellular phone 120a and the vehicle 120b communicate with each other using sidelink signals. The cellular phone 120a communicates with the smart home equipment 120e without relaying the communication signals through the base station 110b.

[0065] In this application, the communication device for implementing the terminal functions may be a terminal, or a terminal with some of the functions of the above terminal, or a device capable of supporting the implementation of the functions of the above terminal, such as a chip system, which may be installed in the terminal or used in combination with the terminal. In this application, the chip system may be composed of chips or may include chips and other discrete devices. In the technical solution provided in this application, the communication device is described by taking the terminal or UE as an example.

[0066] Optionally, a wireless communication system is usually composed of cells, and the base station provides the management of the cells. The base station provides 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 the RRU may be placed in different locations. For example, the RRU is remote and placed in a high-traffic area, and the BBU is placed in the central computer room. The BBU and the RRU may also be placed in the same computer room. The BBU and the RRU may also be different components under the same rack. Optionally, a cell may correspond to one carrier or a member carrier.

[0067] In some deployments, the network device mentioned in the embodiments of this application may be a device including a CU, or a DU, or a device including a CU and a DU, or a device including CU-CP, CU-UP, and DU nodes. For example, the network device may include gNB-CU-CP, gNB-CU-UP, and gNB-DU.

[0068] In some deployments, multiple RAN nodes cooperate to assist the terminal in achieving wireless access, and different RAN nodes respectively implement some of the functions of the base station. For example, the RAN node may be a CU, a DU, a CU-CP, a CU-UP, or an RU, etc. The CU and the DU may be set separately or may also be included in the same network element, such as in the BBU. The RU may be included in the radio frequency device or radio frequency unit, such as included in the RRU, AAU, or RRH.

[0069] The RAN node can support one or more types of fronthaul interfaces. Different fronthaul interfaces respectively correspond to DUs and RUs with different functions. If the fronthaul interface between the DU and the RU is the Common Public Radio Interface (CPRI), the DU is configured to implement one or more of the baseband functions, and the RU is configured to implement one or more of the radio frequency functions. If the fronthaul interface between the DU and the RU is another interface, compared with the CPRI, some of the downlink and / or uplink baseband functions, for example, for the downlink, one or more of precoding, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / cyclic prefix (CP) addition, are moved from the DU to the RU for implementation; for the 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 a possible implementation, this interface can be the Enhanced Common Public Radio Interface (eCPRI). Under the eCPRI architecture, different splitting methods between the DU and the RU correspond to different categories (Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, F.

[0070] Taking eCPRI Cat A as an example, for downlink transmission, with layer mapping as the segmentation, the DU is configured to implement one or more functions before layer mapping (i.e., one or more of encoding, rate matching, scrambling, modulation, and layer mapping), while other functions after layer mapping (e.g., one or more of RE mapping, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / cyclic prefix (CP) addition) are moved to the RU for implementation. For uplink transmission, with de-RE mapping as the segmentation, the DU is configured to implement one or more functions before demapping (i.e., one or more of decoding, derate matching, descrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and de-RE mapping), while other functions after demapping (e.g., one or more of digital BF or FFT / CP removal) are moved to the RU for implementation. It can be understood that for the function descriptions of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol, which will not be elaborated here.

[0071] In a possible design, the processing unit in the BBU for implementing baseband functions is called the baseband high (BBH) unit, and the processing unit in the RRU / AAU / RRH for implementing baseband functions is called the baseband low (BBL) unit.

[0072] In different systems, the 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, the CU can also be called the O-CU (open CU), the DU can also be called the O-DU, the CU-CP can also be called the O-CU-CP, the CU-UP can also be called the O-CU-UP, and the RU can also be called the O-RU. Any unit among the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through a software module, a hardware module, or a combination of a software module and a hardware module.

[0073] In the embodiments of this application, the device for implementing the functions of the network device can be the network device; it can also be a device capable of supporting the network device to implement such functions, such as a chip system, a hardware circuit, a software module, or a combination of a hardware circuit and a software module. This device can be installed in the network device or used in matching with the network device. In the embodiments of this application, only the case where the device for implementing the functions of the network device is the network device is taken as an example for illustration, which does not limit the solutions of the embodiments of this application.

[0074] It can be understood that the present application can be applied between a network device and a terminal.

[0075] 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 functions of protocol layers such as a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a medium access control (MAC) layer, and a physical layer. For example, the user plane protocol layer structure may include functions of protocol layers such as the PDCP layer, the RLC layer, the MAC layer, and the physical layer. In a possible implementation, a service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

[0076] Optionally, the protocol layer structure between the network device and the terminal may further include an artificial intelligence (AI) layer for transmitting data related to AI functions.

[0077] Taking the data transmission between the network device and the terminal as an example, the data transmission needs to pass through the user plane protocol layer, such as passing through the SDAP layer, the PDCP layer, the RLC layer, the MAC layer, and the physical layer. Among them, the SDAP layer, the PDCP layer, the RLC layer, the MAC layer, and the physical layer may also be collectively referred to as the access layer. According to the data transmission direction, it is divided into sending or receiving, and each of the above layers is further divided into a sending part and a receiving part. Taking the 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 the MAC layer. Then, the MAC layer generates a transport block, and then performs wireless transmission through the physical layer. The data is encapsulated correspondingly in each layer. For example, the data received by a certain layer from the upper layer of that layer is regarded as the service data unit (SDU) of that layer. After being encapsulated by that layer, it becomes a protocol data unit (PDU), and then is passed to the next layer.

[0078] Exemplarily, the terminal may also have an application layer and a non-access stratum. Among them, the application layer may be used to provide services for the applications installed in the terminal. For example, the downlink data received by the terminal may 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 may obtain the data generated by the application and sequentially transmit the data to the physical layer to be sent to other communication devices. The non-access stratum may be used to forward user data. For example, the uplink data received from the application layer is forwarded to the SDAP layer, or the downlink data received from the SDAP layer is forwarded to the application layer.

[0079] It should be understood that Figure 1 The number and type of each device in the shown communication system are only for illustration, and this application is not limited thereto. In actual applications, the communication system may further include more terminals, more access network devices, and may also include other network elements, such as core network devices, and / or network elements for implementing artificial intelligence functions.

[0080] It can be understood that all or part of the functions implemented by one or more of the terminal, the access network device, the core network device, or the network element for implementing artificial intelligence functions can be virtualized, that is, implemented by one or more of a dedicated processor or a general-purpose processor and corresponding software modules. Among them, since the terminal and the access network device involve the interfaces for air interface transmission, the transceiver functions of these interfaces can be implemented by hardware. Core network devices, such as operation administration and maintenance (OAM) network elements, can all be virtualized. Optionally, one or more functions of the virtualized terminal, access network device, core network device, or network element for implementing artificial intelligence functions can be implemented by a cloud device, such as a cloud device in an over the top (OTT) system.

[0081] Satellite communication has been introduced currently as a communication scenario for 5G communication, called non-terrestrial network (NTN), which can not only support various types of 5G terminals, but also support IoT type terminals. Satellite communication has its unique advantages compared with terrestrial communication. For example, it can provide a wider coverage area; satellite base stations are not easily damaged by natural disasters or external forces. If satellite communication is introduced in future 5G communication, it can provide communication services for some areas that cannot be covered by terrestrial communication networks, such as the ocean and forests; enhance the reliability of 5G communication, such as providing better communication services for users on vehicles such as airplanes and trains; provide more resources for data transmission in 5G communication and improve the network rate. Therefore, supporting both terrestrial and satellite communication simultaneously is an inevitable trend for future 5G communication, which has relatively great benefits in terms of wide coverage, reliability, multi-connection, high throughput, etc.

[0082] As shown in Figures 2a - 2c the figure, it is a schematic diagram of the application scenario of the satellite-ground integrated network. Ground terminals can access the network through the air interface (the air interface can be various types of air interfaces, such as 5G air interfaces). 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 through a wireless link. The ground station and the ground base station are connected to the core network through wired or wireless means. There can be a wireless link between satellites. If the satellite only has the function of transparent transmission and forwarding (that is, the corresponding base station is deployed on the ground), then only transparent transmission and forwarding are realized between satellites; if the base station or some base station functions are deployed on the satellite, then signaling interaction and user data transmission between base stations can be completed as Figure 2c shown in the figure.

[0083] First, the terms that may be involved in the embodiments of the present application are explained:

[0084] (1) TCI state

[0085] A beam is a communication resource. The beam can be a wide beam, a narrow beam, or other types of beams. The technology for forming the beam can be beamforming technology or other technical means. The beamforming technology can specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology. Different beams can be regarded as different resources. The same information or different information can be sent through different beams. Optionally, multiple beams with the same or similar communication characteristics can be regarded as one beam. A beam can be formed by one or more antenna ports and is used to transmit data channels, control channels, sounding signals, etc. One or more antenna ports forming a beam can be regarded as an antenna port set.

[0086] The beam includes a transmit beam and a receive beam. The transmit beam can refer to the signal intensity distribution formed in different directions in space after the signal is transmitted by the antenna, and the receive beam can refer to the distribution of the antenna array strengthening or weakening the reception of wireless signals in different directions in space.

[0087] Currently, the 3rd Generation Partnership Project (3 rdIn the New Radio (NR) protocol of the 3rd Generation Partnership Project (3GPP), beam information can be indicated through the quasi co-location (QCL) relationship of antenna ports. It can be indicated in the indication information (e.g., downlink control information (DCI)) that a resource (or antenna port) has a QCL relationship with another resource (or antenna port), indicating that the beams corresponding to these two resources (or antenna ports) have one or more identical or similar spatial characteristics (or parameters) and can be received using the same receiving 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 Rx 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, receiving antenna spatial correlation parameters, transmitting antenna spatial correlation parameters, transmit beam, receive beam, and resource identifier. Currently in NR, a total of 4 QCL types are supported, 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; QCL-TypeD corresponds to Spatial Rx parameter.

[0088] The network uses the Transmission Configuration Indicator (TCI) state to represent the QCL source reference signal (source RS) and the large-scale parameter QCL type that can be obtained from it. Each TCI state can be configured with two pairs of source RS and QCL type. According to TS38.331, the structure of the TCI state is as follows:

[0089]

[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. Moreover, the protocol stipulates the transmission configuration indication state configuration (TCI state configuration) available for each target reference signal, and 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 in the configuration of PDSCH / PDCCH (corresponding to the demodulation reference signal (DMRS)).

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

[0092] When the ul-powerControl is not configured in the partial bandwidth-uplink-dedicated field, the TCI state will include the ul-powerControl field. The ul-powerControl field indicates the elements in the uplink-PowerControlToAddModList configured for the serving cell configured by the 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), the physical uplink shared channel (PUSCH), and the sounding reference signal (SRS) configured in the TCI state. The specific configuration is as follows:

[0095]

[0096] Uplink-powerControlId-r17::=INTEGER(1..maxUL-TCI state-r17)

[0097] In particular, when the alpha field is missing in the uplink data channel power control parameter (p0AlphaSetforPUSCH), the UE may set the power control parameter value of the PUSCH to 1. When the alpha field is missing in the sounding reference signal power control parameter (p0AlphasetforSRS), the UE may set the power control parameter value of the SRS to 1. When the alpha field is missing in the uplink control channel power control parameter (p0AlpaSetForPUCCH), the UE may set the power control parameter value of the PUCCH to 1.

[0098] Among them, the transmission power P of the PUSCH PUSCH,b,f,c (i,j,q d ,l) satisfies the following formula 1:

[0099]

[0100] Among them, P CMAX,f,c is the output power of the terminal corresponding to the carrier f and the serving cell c; is the initial power value of the PUSCH for the partial bandwidth b, carrier f, and serving cell c; μ is the subcarrier spacing adopted by the PUCCH; is the number of resource blocks of the PUSCH resource allocated for the transmission occasion i on the partial bandwidth b, carrier f, and serving cell c; α b,f,c (j) is the compensation factor for path loss; PL n,f,c (q d ) is the estimated path loss on the partial bandwidth b, carrier f, and serving cell c; Δ TF,n,f,c (i) is the power parameter related to the modulation mode on the partial bandwidth b, carrier f, and serving cell c; f b,f,c (i,l) is the parameter related to the closed-loop power adjustment of the transmission occasion i on the partial bandwidth b, carrier f, and serving cell c; l is the PUSCH power control adjustment state.

[0101] Among them, the transmission power P of the PUCCH PUCCH,b,f,c (i,q u ,q d ,l) satisfies the following formula 2:

[0102]

[0103] Among them, is the output power of the PUCCH on the active uplink partial bandwidth b of the carrier f of the serving cell c; The number of resource blocks of the PUCCH resource allocated for transmission occasion i on the active uplink partial bandwidth b of carrier f of serving cell c; Δ F_PUCCH (F) is the PUCCH transmission power adjustment amount on the active uplink partial bandwidth b of carrier f of serving cell c; g b,f,c (i, l) is the PUCCH power control adjustment state factor corresponding to the current PUCCH power control adjustment state l and PUCCH transmission occasion i on the active uplink partial bandwidth b of carrier f of serving cell c. The meanings of the remaining parameters can be referred to the above text and will not be elaborated here.

[0104] Among them, the transmission power P of SRS SRS,b,f,c (i, q s , l) satisfies the following formula 3:

[0105]

[0106] Among them, is the nominal power of this SRS, based on p0 for the active uplink partial bandwidth b of carrier f of 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 bandwidth of SRS, characterized by the number of resource blocks, for the SRS transmission occasion i on the active uplink partial bandwidth b of carrier f of serving cell c; α SRS,b,f,c (q s ) is the path loss compensation factor, which is based on alpha and SRS resource set q on the active uplink partial bandwidth b of carrier f of serving cell c s ; h b,f,c (i, l) is the power control accumulation amount of this SRS corresponding to the current PUCCH power control adjustment state l and PUCCH transmission occasion i on the active uplink partial bandwidth b of carrier f of serving cell c. The meanings of the remaining parameters can be referred to the above text and will not be elaborated here.

[0107] 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 l is provided by p0AlphaSetforPUCCH in the corresponding indicated TCI state-state / TCI state-UL-State; in formula 3, αSRS,b,f,c (q s ) The SRS power control adjustment state l is provided by p0AlphaSetforSRS in the corresponding TCI state-state / TCI state-UL-TCI state-state.

[0108] (3) Configuration and activation of TCI state state

[0109] Taking the PDSCH as an example to illustrate the configuration and activation of TCI state state. The information of the PDSCH channel related to the TCI state is as follows:

[0110]

[0111] The network device can configure the TCI state state information of up to 128 PDSCHs through radio resource control (RRC) signaling. If the configured TCI state state of the PDSCH is greater than 8, the TCI state state needs to be activated through the medium access control control element (MAC CE); if the configured TCI state state of the PDSCH is less than 8, the TCI state state will be directly indicated by DCI. Among them, the activation or deactivation of the TCI state of the UE-specific PDCSH MAC CE is identified by the MAC sub-header with a logical control identifier (LCID), as Figure 3 shown.

[0112] 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 this Ti field. When the Ti field is set to 1, it means that the TCI state with TCI state ID i should be activated and mapped to the code point of the DCI transmission configuration indication field. When the Ti field is set to 0, it means that the TCI state with TCI state ID i should be deactivated and not mapped to the code point of the DCI transmission configuration indication field. The code point to which the TCI state is mapped is determined by the order of the TCI state sates with their Ti fields set to 1. That is, the first TCI state with its Ti field set to 1 should be mapped to the code point value 0, the second TCI state with its Ti field set to 1 should be mapped to the code point value 1, and so on. The maximum number of activated TCI states is 8. The activated TCI states can be associated with at most one PCI different from the serving cell PCI at a time.

[0113] The TCI state can 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) (for both uplink and downlink simultaneously).

[0114] Typically, the network side allocates up to 128 TCI states to the UE, among which the number of UL-TCI states is 64, and the corresponding number of groups of p0AlphaSet is 64 * 3 = 192 groups. However, during the actual communication process, the network side can activate at most 8 TCI states, and the corresponding maximum number of groups of p0AlphaSet is 8 * 3 = 24 groups.

[0115] Therefore, during the actual communication process of the terminal, usually at most 8 ul-powercontrol parameters are required. However, when the network side configures, it will configure up to 64 ul-powercontrol parameters, which will bring a huge signaling overhead.

[0116] Moreover, in the prior art, ul-powercontrol is bound to the TCI state, and one TCI state corresponds to only one ul-powercotnrol, with low flexibility. Also, when it is necessary to change the relevant parameters of ul-powercontrol in the TCI state, usually the TCI state needs to be reconfigured, which will bring additional overhead.

[0117] To this end, the embodiments of the present application provide a communication solution, where the uplink-power control parameters and the transmission configuration indication are independently configured and / or activated. Therefore, the uplink-power control parameters can be separately activated, improving the flexibility of configuration and / or activation and reducing the signaling overhead.

[0118] As Figure 4 shown, it is a schematic flowchart of a communication method provided by the embodiments of the present application. Exemplarily, the method may include the following steps:

[0119] S401. A terminal in the radio resource control-connected state (RRC_CONNECTED) sends a measurement report to a network device. Correspondingly, the network device receives the measurement report.

[0120] 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 state between it and the terminal.

[0121] 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.

[0122] S402. The network device sends a radio resource control reconfiguration (RRC reconfiguration) instruction to the terminal. Correspondingly, the terminal receives the RRC reconfiguration.

[0123] Among them, the RRC reconfiguration includes at most 128 TCI states and at most 64 ul-powercontrols. It can be seen that these multiple TCI states may not include ul-power control parameters, and these multiple TCI states and multiple ul-powercontrols are independently configured.

[0124] This step is optional. In this embodiment, the TCI state and ul-powercontrol can also be configured in other ways. Therefore, it is represented by a dotted line in the figure.

[0125] 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.

[0126] This RRC reconfiguration complete message is used to indicate that the terminal has successfully received the RRC reconfiguration and completed the reconfiguration.

[0127] Of course, the terminal may not send this RRC reconfiguration complete message. The network device defaults that the terminal has successfully received the RRC reconfiguration and completed the reconfiguration. Therefore, this step is optional and is shown as a dashed line in the figure.

[0128] S404. The network device sends a Transmission Configuration Identity state Activation / Deactivation (TCI state Activation / Deactivation) instruction to the terminal. Correspondingly, the terminal receives this TCI state Activation / Deactivation instruction.

[0129] The network device activates the TCI states to be used and sends a TCI state Activation / Deactivation instruction to the terminal. For example, this TCI state Activation / Deactivation instruction is used to indicate the activation of 8 TCI states: TCI state #0 to TCI state 7.

[0130] Exemplarily, this TCI state Activation / Deactivation instruction may be a MAC CE signaling. This MAC CE signaling is respectively used to indicate the value of Ti corresponding to each TCI state configured by the above RRC reconfiguration. Among them, if the value of Ti is "1", it indicates the activation of the TCI state corresponding to this Ti; if the value of Ti is "0", it indicates the deactivation of the TCI state corresponding to this Ti.

[0131] Further, the terminal maps these 8 TCI states to at least one second code point. For example, as shown in Table 1, the terminal maps these 8 TCI states to codepoints #1:

[0132] Table 1

[0133]

[0134] Among them, codepoints #1 includes 8 codepoints. The terminal maps the corresponding TCI states to these 8 codepoints in sequence according to the order of Ti with a value of "1".

[0135] This embodiment may not involve the activation of the TCI state, or several TCI states have been activated before this embodiment is implemented. Therefore, this step is optional and is shown by a dashed line in the figure.

[0136] S405. The network device sends the first information to the terminal. Correspondingly, the terminal receives the first information.

[0137] The network device activates the uplink-power control parameters to be used and sends the first information to the terminal. This first information can also be referred to as an uplink-power control parameter activation / deactivation (ul-powercontrol Activation / Deactivation) instruction. This first information is used to activate at least one first uplink-power control parameter.

[0138] Exemplarily, this first information can be a MAC CE / RRC signaling, and its format is as Figure 5 shown. The activation method of ul-powercontrol is similar to that of the TCI state. This MAC CE signaling is respectively used to indicate the value of Pi corresponding to each ul-powercontrol configured in the above RRC reconfiguration. Among them, if the value of Pi is "1", it indicates the activation of the ul-powercontrol corresponding to this Pi; if the value of Pi is "0", it indicates the deactivation of the ul-powercontrol corresponding to this Pi.

[0139] The network device can activate at most 8 ul-powercontrols.

[0140] 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 the corresponding codepoints#2:

[0141] Table 2

[0142] codepoint 0(000) 1(001) 2(010) 3(011) ul - powercontrol ul - powercontrol ID#0 ul - powercontrol ID#1 ul - powercontrol ID#2 ul - powercontrol ID#3 codepoint 4(100) 5(101) 6(110) 7(111) ul - powercontrol ul - powercontrol ID#4 ul - powercontrol ID#5 ul - powercontrol ID#6 ul - powercontrol ID#7

[0143] 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 is different from the at least one second code point to which the at least one first TCI state is mapped.

[0144] It can be seen from steps S404 and S405 that these multiple TCI states and multiple ul-powercontrols are independently activated, improving the flexibility of the activation process.

[0145] Exemplarily, in the above step S402, the network device may also configure no more than 8 ul-powercontrols through an RRC reconfiguration instruction. After receiving the RRC reconfiguration instruction, the terminal directly maps the multiple ul-powercontrols configured by the network device to code points, and no longer requires the network device to activate the multiple ul-powercontrols to be used. Then, the network device may select the TCI state to be activated according to the multiple ul-powercontrols corresponding to the code points. In this way, when a handover occurs, the network device may not update the ul-powercontrol corresponding to the code point, but only update the corresponding TCI state.

[0146] S406. The network device sends second information to the terminal. Correspondingly, the terminal receives the second information.

[0147] When actually scheduling, the network device sends second information to the terminal.

[0148] Exemplarily, the second information may be DCI.

[0149] Exemplarily, the second information is used to indicate a third code point and a fourth code point. The third code point belongs to the above at least one first code point, and the fourth code point belongs to the above at least one second code point.

[0150] For example, the network device may add indication information to the existing DCI signaling. For example, 3 new bits are added to indicate the ul-powercontrol to be used. For example, the network device may add 3 bits after the original 3 bits indicating codepoints to become xxxyyy, where the first 3 bits xxx indicate the TCI state, and the last 3 bits are used to indicate the ul-powercontrol.

[0151] It can be understood that this embodiment does not limit the order of "xxx" and "yyy" in the DCI, that is, it may be "xxxyyy" or "yyyxxx". It does not limit the positions of "xxx" and "yyy" in the DCI.

[0152] 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.

[0153] The terminal can determine the uplink power control parameter corresponding to the third code point according to the third code point and Table 2. The terminal determines the uplink transmission power according to the uplink power control parameter corresponding to the third code point, and transmits an uplink channel (such as PUSCH, PUCCH) and / or an uplink reference signal (such as SRS) based on the uplink transmission power.

[0154] Further, the terminal can also determine the TCI state corresponding to the fourth code point according to the fourth code point and Table 1. The terminal determines the transmission beam according to the TCI state corresponding to the fourth code point, and transmits an uplink channel and / or an uplink reference signal based on the transmission beam.

[0155] According to a communication method provided in an embodiment of the present application, the uplink power control parameter and the transmission configuration indication are independently configured and / or activated. Therefore, the uplink power control parameter can be activated separately, which improves the flexibility of configuration and / or activation and reduces the signaling overhead.

[0156] In another embodiment, the ul - powercontrol and the TCI state can also be mapped to the same code point.

[0157] Among them, in the above steps S404 and S405, the terminal maps 8 TCI states and 8 ul - powercontrols to the same set of code points.

[0158] In addition, this embodiment does not limit the order in which the TCI state and the ul - powercontrol are mapped to the code points. At least one ul - powercontrol can be mapped to the code point first, and then, according to the mapping relationship between the ul - powercontrol and the code point, the TCI state can be mapped to the code point.

[0159] In step S406, the network device sends third information (such as DCI) to the terminal, and this third information is used to indicate the fifth code point.

[0160] The terminal determines the ul - powercontrol and the TCI state corresponding to the fifth code point according to the fifth code point indicated by the third information and the mapping relationship between the ul - powercontrol, the TCI state and the code point. And the terminal transmits an uplink channel and / or an uplink reference signal according to the determined ul - powercontrol and TCI state.

[0161] 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:

[0162] Table 3

[0163]

[0164]

[0165] ul-powercontrol corresponds to the UL TCI state. As an alternative to the above steps S402 and S405, the network device can directly send down a list / set that contains the identifiers of multiple ul-powercontrols. The terminal can map at least one first ul-powercontrol to at least one second code point according to the correspondence between at least one uplink TCI state and at least one second code point, and the identifier of at least one first ul-powercontrol.

[0166] Exemplarily, the ul-powercontrols therein correspond, in sequence, to different ul-TCI states and the codepoints where they are located. For example, the network device directly sends down 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.

[0167] The uplink power control parameters in the above text may further include at least one of the following: uplink data channel power control parameter (p0AlphaSetforPUSCH), uplink control channel power control parameter (p0AlpaSetForPUCCH), 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:

[0168] As Figure 6 shown, it is a schematic flowchart of another communication method provided by an embodiment of the present application. Exemplarily, the method may include the following steps:

[0169] S601. A terminal in the radio resource control-connected state sends a measurement report to a network device. Correspondingly, the network device receives the measurement report.

[0170] For the specific implementation of this step, reference may be made to Figure 4 step S401 of the embodiment shown, which will not be elaborated here.

[0171] 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.

[0172] In this embodiment, the uplink power control parameters may include at least one of the following: uplink data channel power control parameter (p0AlphaSetforPUSCH), uplink control channel power control parameter (p0AlpaSetForPUCCH), uplink reference signal power control parameter (p0AlphasetforSRS).

[0173] Among them, the RRC reconfiguration includes at most 128 TCI states and at most 64 groups of ul-powercontrol parameters, and each group of ul-powercontrol parameters includes at least one of p0AlphaSetforPUSCH, p0AlpaSetForPUCCH, and p0AlphasetforSRS. It can be seen that these multiple TCI states may not include ul-powercontrol parameters, and these multiple TCI states and multiple groups of ul-powercontrol are independently configured.

[0174] S603. The terminal sends a radio resource control reconfiguration complete message to the network device. Correspondingly, the network device receives the radio resource control reconfiguration complete message.

[0175] For the specific implementation of this step, reference may be made to Figure 4Step S403 of the illustrated embodiment will not be elaborated herein.

[0176] S604. The network device sends a Transmission Configuration Indicator (TCI) state Activation / Deactivation command to the terminal. Correspondingly, the terminal receives the TCI state Activation / Deactivation command.

[0177] The network device activates the TCI states to be used and sends a TCI state Activation / Deactivation command to the terminal. For example, the TCI state Activation / Deactivation command is used to indicate the activation of 8 TCI states: TCI state #0 to TCI state 7.

[0178] The specific implementation of this step can refer to Figure 4 Step S404 of the illustrated embodiment will not be elaborated herein.

[0179] S605. The network device sends the first information to the terminal. Correspondingly, the terminal receives the first information.

[0180] The network device activates 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, and sends the first information to the terminal. The first information can also be referred to as an uplink - power control Activation / Deactivation command. 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.

[0181] Exemplarily, the first information can be a MAC CE or an RRC signaling, etc.

[0182] For at least one p0AlphaSetforPUSCH configured in the RRC reconfiguration command in step S602, the first information is used to indicate the value of Pi corresponding to each p0AlphaSetforPUSCH configured in the RRC reconfiguration command. Where the value of Pi is "1", it indicates the activation of the p0AlphaSetforPUSCH corresponding to this Pi; where the value of Pi is "0", it indicates the de - activation of the p0AlphaSetforPUSCH corresponding to this Pi.

[0183] Similarly, for at least one p0AlphaSetforPUCCH configured in the RRC reconfiguration instruction in step S602, this first piece of information is used to indicate the value of Pi corresponding to each p0AlphaSetforPUCCH configured in the RRC reconfiguration instruction. Among them, if the value of Pi is "1", it indicates to activate the p0AlphaSetforPUCCH corresponding to this Pi; if the value of Pi is "0", it indicates to deactivate the p0AlphaSetforPUCCH corresponding to this Pi.

[0184] For at least one p0AlphaSetforSRS configured in the RRC reconfiguration instruction in step S602, this first piece of information is used to indicate the value of Pi corresponding to each p0AlphaSetforSRS configured in the RRC reconfiguration instruction. Among them, if the value of Pi is "1", it indicates to activate the p0AlphaSetforSRS corresponding to this Pi; if the value of Pi is "0", it indicates to deactivate the p0AlphaSetforSRS corresponding to this Pi.

[0185] The terminal maps to at least one second code point (Codepoint#1) in sequence according to the order of the at least one activated TCI states, as shown in Table 4 below:

[0186] Table 4

[0187]

[0188] The terminal maps at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS to at least one first code point (Codepoint#2) respectively according to the order of at least one of the activated p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS, as shown in Table 5 below:

[0189] Table 5

[0190] Codepoint#2 0(000) 1(001) 2(010) 3(011) 4(100) 5(101) 6(110) 7(111) PUSCH P#w0 P#w1 P#w2 P#w3 P#w4 P#w5 P#w6 P#w7 PUCCH P#y0 P#y1 P#y2 P#y3 P#y4 P#y5 P#y6 P#y7 SRS P#z0 P#z1 P#z2 P#z3 P#z4 P#z5 P#z6 P#z7

[0191] In Table 3 and Table 4, it is exemplified that TCI states and ul - powercontrol (including at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, and p0AlphaSetforSRS) are mapped to different code points.

[0192] The TCI states and ul - powercontrol (including at least one of p0AlphaSet for PUSCH, p0AlphaSet for PUCCH, and p0AlphaSet for SRS) can also be mapped to the same set of code points.

[0193] S606. The network device sends the second information to the terminal. Correspondingly, the terminal receives the second information.

[0194] When actually scheduling, the network device sends the second information to the terminal.

[0195] Exemplarily, the second information can be DCI.

[0196] Exemplarily, the second information is used to indicate a third code point and a fourth code point. The third code point belongs to at least one of the above - mentioned first code points, and the fourth code point belongs to at least one of the above - mentioned second code points.

[0197] For example, the network device can add new indication information in the existing DCI signaling. For example, 3 new bits are added to indicate the ul - powercontrol to be used, and the ul - powercontrol includes at least one of the following parameters: p0AlphaSet for PUSCH, p0AlphaSet for PUCCH, p0AlphaSet for SRS. For example, the network device can add 3 bits after the original 3 bits indicating codepoints to become xxxyyy, where the first 3 bits xxx indicate the TCI state, and the last 3 bits are used to indicate the ul - powercontrol.

[0198] It can be understood that the TCI states and ul - powercontrol can also be mapped to the same set of code points. Then the network device can send the third information (such as DCI) to the terminal, and the third information is used to indicate a fifth code point. The terminal determines the ul - powercontrol and TCI state corresponding to the fifth code point according to the mapping relationship between the ul - powercontrol, TCI state, and the code point. The ul - powercontrol includes at least one of the following parameters: p0AlphaSet for PUSCH, p0AlphaSet for PUCCH, p0AlphaSet for SRS.

[0199] 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. The second TCI state belongs to at least one first TCI state.

[0200] The terminal determines a second TCI state corresponding to the fourth code point indicated by the second information, and determines a transmission beam based on the second TCI state. The second TCI state belongs to the above at least one first TCI state.

[0201] S608. The terminal determines 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 determines 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 respectively 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.

[0202] The terminal determines an uplink power control parameter corresponding to the third code point indicated by the second information.

[0203] In one implementation, if at least one p0AlphaSetforPUSCH is configured in the RRC reconfiguration instruction in step S602, and the terminal maps at least one activated p0AlphaSetforPUSCH to at least one first code point, then the terminal determines a p0AlphaSetforPUSCH corresponding 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 transmission power of the PUSCH based on the p0AlphaSetforPUSCH.

[0204] In another implementation, if at least one

[0205] p0AlphaSetforPUCCH is configured in the RRC reconfiguration instruction in step S602, and the terminal maps at least one activated p0AlphaSetforPUCCH to at least one first code point, then the terminal determines a p0AlphaSetforPUCCH corresponding 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 transmission power of the PUCCH based on the p0AlphaSetforPUCCH.

[0206] In another implementation, if at least one p0AlphaSetforSRS is configured in the RRC reconfiguration instruction in step S602, and the terminal maps at least one activated p0AlphaSetforSRS to at least one first code point, then the terminal determines the p0AlphaSetforSRS corresponding to the third code point (the third code point belongs to at least one first code point) indicated by the second information, and determines the transmission power of the SRS based on the p0AlphaSetforSRS.

[0207] It can be understood that the above-mentioned multiple implementations can be implemented independently or in combination.

[0208] S609. The terminal respectively transmits at least one of the uplink data channel, the uplink control channel, and the uplink reference signal based on at least one of the transmission beam and 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.

[0209] In one implementation, if the terminal determines the transmission beam and the transmission power of the PUSCH, then it transmits the PUSCH based on the transmission beam and the transmission power of the PUSCH.

[0210] In another implementation, if the terminal determines the transmission beam and the transmission power of the PUCCH, then it transmits the PUCCH based on the transmission beam and the transmission power of the PUCCH.

[0211] In another implementation, if the terminal determines the transmission beam and the transmission power of the SRS, then it transmits the SRS based on the transmission beam and the transmission power of the SRS.

[0212] According to a communication method provided by an embodiment of the present application, the uplink-power control parameters and the transmission configuration indication are configured and / or activated independently. Thus, the uplink-power control parameters can be activated separately, which improves the flexibility of configuration and / or activation and reduces the 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. Therefore, various uplink-power control parameters can be further configured and / or activated.

[0213] In another embodiment, when the network device needs to update the ul-powercontrol (including at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, p0AlphaSetforSRS) corresponding to a codepoint (any one of the above at least one first codepoints, hereinafter referred to as the sixth codepoint), the network device may send fourth information to indicate the sixth codepoint and the updated ul-powercontrol (specifically at least one of p0AlphaSetforPUSCH, p0AlphaSetforPUCCH, p0AlphaSetforSRS). After receiving the fourth information, the terminal updates the ul-powercontrol corresponding to the sixth codepoint according to the fourth information.

[0214] In another embodiment, the multi-TRP (multi-Transmission and Reception Point) technology improves the coverage range, throughput, and transmission reliability of cell-edge users through joint transmission by multiple TRPs. The same or different data may be transmitted between the terminal and the multiple TRPs. The multiple TRPs may be divided into ideal backhaul lines and non-ideal backhaul lines. Each of the above embodiments in this application may also be applied to the m-TRP scenario.

[0215] For example, for TRP#1, the network device may activate and map TCI states and ul-powercontrol to codepoint#1 and codepoint#2 respectively. For TRP#2, the network device may activate and map TCI states and ul-powercontrol to codepoint#3 and codepoint#4 respectively. To distinguish the ul-powercontrol that needs to be activated under different TRPs, the network device may include first indication information in the above 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.

[0216] For another example, for TRP#1, the network device can activate and map TCI states and ul - powercontrol to a set of codepoints. For TRP#2, the network device can activate and map TCI states and ul - powercontrol to another set of codepoints. 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. This first indication information is used to indicate the TRP corresponding to at least one first ul - powercontrol parameter. For example, this 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.

[0217] It can be understood that in each of the above - mentioned embodiments, the methods and / or steps implemented by the terminal can also be implemented by components for the terminal (such as chips or circuits); the methods and / or steps implemented by the network device can also be implemented by components for the network device (such as chips or circuits).

[0218] The above mainly introduces the solutions provided in the embodiments of the present application from the perspective of the interaction between the terminal and the network device. Correspondingly, the embodiments of the present application also provide a communication device, which is used to implement the above - mentioned various methods. This communication device can be the terminal in the above - mentioned method embodiments, or a component available for the terminal; or, this communication device can be the network device in the above - mentioned method embodiments, or a component available for the network device. It can be understood that in order to implement the above functions, this communication device includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combined with the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described function for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0219] Embodiments of the present application can divide functional modules for a communication device according to the above method embodiments. For example, each functional module can be divided corresponding 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 embodiments of the present application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0220] Based on the same concept as the above communication method, the present application also provides the following communication device:

[0221] As Figure 7 shown, it is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device 700 includes a transceiver unit 701 and a processing unit 702; wherein:

[0222] 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 shown as Figure 4 shown; or, the transceiver unit 701 is used to execute one or more of the operations performed by the terminal in steps S601 to S606, S609 in the embodiment shown as Figure 6 shown, and the processing unit 702 is used to execute one or more of the operations in steps S607 and S608 in the embodiment shown as Figure 6 shown.

[0223] 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 shown as Figure 4 shown; 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, S609 in the embodiment shown as Figure 6 shown.

[0224] For the specific implementation of the above transceiver unit 701 and processing unit 702, reference can be made to the description in the above method embodiments.

[0225] As Figure 8As shown in the figure, it is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device 800 includes one or more processors 801 (one processor is exemplified in the figure). Optionally, the communication device 800 may further include an interface circuit 802 (shown as a dotted line in the figure), and the processor 801 and the interface circuit 802 are coupled to each other. It can be understood that the interface circuit 802 may be a transceiver or an input / output interface. Optionally, the communication device 800 may further include a memory 803 (shown as a dotted line in the figure). The memory 803 is used to store instructions executed by the processor 801, or input data required for the processor 801 to run instructions, or data generated after the processor 801 runs instructions.

[0226] Wherein, when the communication device is used to implement the functions 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, 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 .

[0227] 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 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, S609 in the embodiment shown in Figure 6 .

[0228] When the above communication device is a chip applied to a terminal, the chip implements the functions of the terminal in the above method embodiment. The chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal, and this information is sent by the network device to the terminal; or, the chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal, and this information is sent by the terminal to the network device.

[0229] When the above communication device is a chip applied to a network device, the chip implements the functions of the network device in the above method embodiment. The chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by the terminal to the network device; or, the chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by the network device to the terminal.

[0230] In addition, it should be noted that the aforementioned transceiver unit and / or processing unit can be implemented by virtual modules. For example, the processing unit can be implemented by a software functional unit or a virtual device, and the transceiver unit can be implemented by a software function or a virtual device. Alternatively, the processing unit or the transceiver unit can also be implemented by a physical device. For example, if the device is implemented using a chip / chip circuit, the transceiver unit can be an input / output circuit and / or a communication interface that performs input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit is an integrated processor, a microprocessor, or an integrated circuit.

[0231] The division of modules in this application is illustrative, merely a logical function division. In actual implementation, there can be other division methods. In addition, in each example of this application, each functional module can be integrated in a processor, can exist independently physically, or two or more modules can be integrated in one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0232] It can be understood that the processor in the embodiments of this application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0233] The embodiments of this application also provide a computer-readable storage medium storing a computer program or instructions. When the computer program or instructions are executed, the methods in the above embodiments are implemented.

[0234] The embodiments of this application also provide a computer program product containing instructions. When the instructions run on a computer, the computer is caused to execute the methods in the above embodiments.

[0235] The embodiments of this application also provide a communication system including the above communication device.

[0236] The embodiments of this application also provide a circuit coupled to a memory. The circuit is used to execute the methods shown in the above embodiments. The circuit can include a chip circuit.

[0237] When the above communication device is a module applied to a network device, the network device module implements the functions of the network device in the above method embodiments. The network device module receives information from other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by a terminal to the network device; or, the network device module sends information to other modules (such as a radio frequency module or an antenna) in the network device, and this 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, an open DU, etc.

[0238] It should be noted that one or more of the above units can be implemented by software, hardware, or a combination of both. When any of the above 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.

[0239] In this application, the processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or all or part of the circuits in the foregoing devices for implementing the processing function, which can implement or execute the various methods, steps, and logic block diagrams disclosed in this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with this application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

[0240] When the above unit or units are implemented by 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, an 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 execute the above method flow without relying on software.

[0241] Optionally, the embodiment of this application also provides a chip system, including: at least one processor and an interface, and the at least one processor is coupled to a memory through the interface. When the at least one processor runs 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 can be composed of chips, or can include chips and other discrete devices, and the embodiment of this application does not make a specific limitation on this.

[0242] The memory in this application can also be a circuit or any other device capable of implementing a storage function, for storing program instructions and / or data. The memory is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. For example, the memory can be a non-volatile memory, such as a digital versatile disc (DVD), a hard disk drive (HDD), or a solid-state drive (SSD), etc., or can also be a volatile memory, such as a random-access memory (RAM).

[0243] As used in this application, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. 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 further includes other steps or units not listed, or optionally further includes other steps or units 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 mean for example, illustration, or explanation. Any method or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other methods or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0244] It should be understood that in the description of this application, unless otherwise specified, " / " means that the objects associated before and after are in an "or" relationship. For example, A / B can represent A or B; where A and B can be singular or plural. Also, in the description of this application, unless otherwise specified, "a plurality" means two or more than two. "At least one (item)" or its similar expressions refer to any combination of these items, including any combination of a single item or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple. Additionally, for the convenience of clearly describing the technical solutions of the embodiments of this application, in the embodiments of this application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and "first", "second", etc. 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 represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, using words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner for easy understanding.

[0245] 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 processes or functions described in the embodiments of this application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, computer, network device, or data center to another website, computer, network device, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or a wireless manner (such as infrared, wireless, microwave, etc.).

[0246] Although the present application has been described in connection with various embodiments, those skilled in the art can understand and achieve other variations of the disclosed embodiments by referring to the accompanying drawings, the disclosure, and the appended claims. In the claims, a single processor or other unit may implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0247] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The magnitude of the serial numbers of the above processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic.

[0248] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0249] The components in the device embodiments of the present application can be combined, divided, and deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments and the features of different embodiments described in this specification.

[0250] In the present application, on the premise of no logical contradiction, the examples can be cited from each other. For example, the methods and / or terms between the method embodiments can be cited from each other, for example, the functions and / or terms between the device embodiments can be cited from each other, for example, the functions and / or terms between the device examples and the method examples can be cited from 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, When the at least one first uplink - power control parameter and the at least one first TCI state are mapped to different code points, 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, characterized in that When 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 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 1-4, 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 to 7, characterized in that The first information includes first indication information for indicating a transmission 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; Wherein, the at least one first uplink-power control parameter and at least one first transmission configuration indication state TCIstate 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, 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: 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 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; wherein: 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; Wherein, the at least one first uplink-power control parameter and at least one first transmission configuration indication state TCIstate 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, characterized in that, At least one first downlink TCI state is configured independently of 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 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.

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, based on the fourth code point, a second TCI state corresponding to 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, based on the third code point, 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 respectively determine at least one of a transmission power of the uplink data channel, a transmission power of the uplink control channel, and a 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 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, 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 send third information, and the third information is used to indicate a fifth code point, 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, wherein 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, the communication device is caused 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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