Power control method and communication apparatus

Abstract

The present application relates to the technical field of communications, and provides a power control method and a communication apparatus. In the method, an access network device configures for a first terminal power control information on the granularity of frequency-domain resource groups, for example, power control information of a first frequency domain resource group, and the power control information is applied to at least two frequency domain resources in the first frequency domain resource group, so that when sending a signal on at least one frequency domain resource in the first frequency domain resource group, the first terminal does not need to separately determine power control information corresponding to each frequency domain resource, thereby reducing calculation overhead. Moreover, power control information corresponding to at least two frequency domain resources in the first frequency domain resource group may be indicated by same information, thereby reducing signaling overhead.

Description

Power control method and communication device

[0001] This application claims priority to Chinese Patent Application No. 202510123493.6, filed on January 24, 2025, entitled "Power Control Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a power control method and a communication device. Background Technology

[0003] In a wireless communication system, access network equipment configures frequency domain resources for terminal equipment, and the terminal equipment communicates based on the frequency domain resources configured by the access network equipment.

[0004] When the access network equipment configures uplink power control information for the terminal equipment, it will configure the same or different power control parameters for each frequency domain resource. The number of parameters configured is large, resulting in significant overhead. Summary of the Invention

[0005] This application provides a power control method and communication device that can reduce the overhead of configuring power control information.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] Firstly, a power control method is provided. This method can be executed by a first terminal, for example, by the first terminal itself, or by a module applied to the first terminal (e.g., a processor, chip, or chip system), or by a logic node, logic module, or software capable of implementing all or part of the functions of the first terminal. For ease of description, the following description assumes the method is executed by the first terminal. The method includes: receiving first information, the first information indicating power control information for a first frequency domain resource group, the power control information being applied to at least two frequency domain resources in the first frequency domain resource group; and transmitting a signal on at least one frequency domain resource in the first frequency domain resource group according to the power control information.

[0008] Based on the power control method provided in the first aspect, the access network device configures power control information for the first terminal at the granularity of frequency domain resource groups, such as the power control information of the first frequency domain resource group. This power control information is applied to at least two frequency domain resources within the first frequency domain resource group. This eliminates the need to determine the power control information for each frequency domain resource separately when the first terminal transmits signals on at least one frequency domain resource within the first frequency domain resource group, thus reducing computational overhead. Furthermore, the power control information corresponding to at least two frequency domain resources in the first frequency domain resource group can be indicated by the same information (such as the first information), thereby simplifying the first information and reducing signaling overhead.

[0009] In one possible implementation, the frequency domain resources are either bandwidth parts (BWP) or carriers. That is, frequency domain resource groups can be divided at the granularity of BWPs or carriers, with the first frequency domain resource group including at least two BWPs or carriers. Compared to configuring power control parameters based on each frequency domain resource, configuring power control information for the first terminal at the granularity of frequency domain resource groups reduces overhead.

[0010] Optionally, the power control information includes at least one of the following: path loss information, transmission power control (TPC) information, and open-loop power control information. The path loss information is used to determine the signal loss during path transmission between the access network equipment and the first terminal. The open-loop power control information may include power parameters configured by higher layers and some power control parameters related to path loss compensation. By having at least two frequency domain resources in the first frequency domain resource group correspond to the same power control information, the overhead of configuring power control information can be reduced.

[0011] Optionally, path loss information may include a path loss measurement reference signal. The path loss measurement reference signal may be, for example, a synchronization signal block (SSB) or a channel state information-reference signal (CSI-RS).

[0012] Optionally, the path loss information may include the path loss value corresponding to the first frequency domain resource group. Directly indicating the path loss value corresponding to the first frequency domain resource group through the access network device can reduce the computational overhead of the first terminal.

[0013] In one possible implementation, the first information further indicates the power control information of the second frequency domain resource group, which includes the offset between the power control information corresponding to the second frequency domain resource group and the power control information corresponding to the first frequency domain resource group.

[0014] If the power control information of the first frequency domain resource group includes the path loss value, and the power control information of the second frequency domain resource group includes the offset between the path loss value corresponding to the second frequency domain resource group and the path loss value corresponding to the first frequency domain resource group (denoted as offset #1), then the first terminal can determine the path loss value corresponding to the second frequency domain resource group through offset #1.

[0015] If the power control information of the first frequency domain resource group includes TPC information (i.e., the TPC parameters of the first frequency domain resource group), and the power control information of the second frequency domain resource group includes the offset between the TPC parameters of the second frequency domain resource group and the TPC parameters of the first frequency domain resource group (denoted as offset #2), then the first terminal can determine the TPC parameters of the second frequency domain resource group through offset #2.

[0016] If the power control information of the first frequency domain resource group includes open-loop power control information (i.e., the open-loop power control parameters of the first frequency domain resource group), and the power control information of the second frequency domain resource group includes the offset between the open-loop power control parameters of the second frequency domain resource group and the open-loop power control parameters of the first frequency domain resource group (denoted as offset #3), then the first terminal can determine the open-loop power control parameters of the second frequency domain resource group through offset #3.

[0017] In this way, the access network device indirectly indicates the power control parameters corresponding to the second frequency domain resource group to the first terminal through the offset between the power control parameters corresponding to the second frequency domain resource group and the power control parameters corresponding to the first frequency domain resource group, thereby reducing the overhead of signaling indication.

[0018] In one possible implementation, the first information further indicates the frequency domain resources included in the first frequency domain resource group. For example, the first information may indicate at least one of the following for each frequency domain resource included in the first frequency domain resource group: identifier, location, or bandwidth size. The power control information of the first frequency domain resource group and the information indicating the frequency domain resources included in the first frequency domain resource group can be carried in the same message / signaling, such as in different cells of the same message, or in different messages; there is no limitation on this. By indicating the frequency domain resources included in the first frequency domain resource group to the first terminal through the access network device, the first terminal and the access network device can align the first frequency domain resource group, facilitating the first terminal's use of the power control information of the first frequency domain resource group.

[0019] Secondly, a power control method is provided. This method can be executed by an access network device, for example, by the access network device itself, or by a module applied to the access network device (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the access network device's functions. This method can also be executed by a second terminal, for example, by the second terminal itself, or by a module applied to the second terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the second terminal's functions. For ease of description, the following description uses the execution of the method by an access network device as an example. The method includes: determining power control information for a first frequency domain resource group, the power control information being applied to at least two frequency domain resources in the first frequency domain resource group; and sending first information, the first information being used to indicate the power control information.

[0020] In one possible implementation, the power control method may further include: receiving a signal on at least one frequency domain resource in a first frequency domain resource group, wherein the transmit power of the signal is determined based on power control information.

[0021] In one possible implementation, the frequency domain resources are: a portion of the bandwidth or a carrier.

[0022] Optionally, the power control information includes at least one of the following corresponding to the first frequency domain resource group: path loss information, transmission power control (TPC) information, and open-loop power control information.

[0023] Optionally, the path loss information includes the path loss value corresponding to the first frequency domain resource group.

[0024] In one possible implementation, the first information further indicates the power control information of the second frequency domain resource group, which includes the offset between the power control information corresponding to the second frequency domain resource group and the power control information corresponding to the first frequency domain resource group.

[0025] Optionally, the first information may also indicate the frequency domain resources included in the first frequency domain resource group.

[0026] Furthermore, the technical effects of the method provided in the second aspect can be referred to the technical effects of the corresponding features in the method provided in the first aspect, and will not be elaborated upon further.

[0027] Thirdly, a power control method is provided. This method can be executed by a first terminal, for example, by the first terminal itself, or by a module applied to the first terminal (e.g., a processor, chip, or chip system), or by a logic node, logic module, or software capable of implementing all or part of the functions of the first terminal. For ease of description, the following description assumes the method is executed by the first terminal. The method includes: the first terminal receiving first information, wherein the first information indicates a first association between transmission configuration indicator (TCI) status information and power control information. The first terminal determines power control information associated with a first TCI status or a first TCI status group based on the first information, and transmits a signal on at least one frequency domain resource in a first frequency domain resource group based on the power control information.

[0028] Based on the power control method provided in the third aspect, the access network device determines the first association between TCI state information and power control information at the granularity of frequency domain resource groups. The first terminal can determine the power control information associated with the current TCI state (i.e., the first TCI state) according to the first association, and send a signal according to the power control information associated with the current TCI state. In this way, configuring the power control information associated with different TCI states at the granularity of frequency domain resource groups can reduce configuration overhead and signaling overhead.

[0029] Optionally, the access network device associates TCI status information with a first frequency domain resource group, and power control information with the first frequency domain resource group, thus determining a first association between the TCI status information and the power control information. In other words, the access network device can associate TCI status information with power control information through the first frequency domain resource group. By configuring power control information associated with different TCI states at the granularity of frequency domain resource groups, configuration overhead can be reduced.

[0030] Optionally, the TCI status information includes a first TCI status or a first TCI status group. Optionally, the TCI status information may include a first TCI status associated with a first frequency domain resource group, or a first TCI status group associated with a first frequency domain resource group. The first TCI status may be one or more, and the first TCI status group may include one or more TCI states.

[0031] Optionally, the power control information may include one or more power control parameters. The first association relationship may include the correspondence between the identifier of the first TCI state and the identifier (or index) of the power control parameter. For example, if there are multiple first TCI states, the first association relationship may include the correspondence between the identifier of each TCI state and the identifier of each power control parameter. This correspondence may be one-to-one or one-to-many, without limitation. Alternatively, the first association relationship may include the correspondence between the identifier of the first TCI state group and the identifier (or index) of the power control parameter.

[0032] In one possible implementation, the frequency domain resources are: a portion of the bandwidth or a carrier.

[0033] Optionally, the power control information includes at least one of the following corresponding to the first frequency domain resource group: path loss information, transmission power control (TPC) information, and open-loop power control information.

[0034] Optionally, the path loss information includes the path loss value corresponding to the first frequency domain resource group.

[0035] Fourthly, this method can be executed by an access network device, such as by the access network device itself, or by a module applied to the access network device (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the functions of the access network device. This method can also be executed by a second terminal, such as by the second terminal itself, or by a module applied to the second terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the functions of the second terminal. For ease of description, the following description uses the execution of this method by an access network device as an example. This method includes: the access network device determining a first association relationship between TCI status information and power control information, and sending first information to the first terminal, the first information indicating the first association relationship.

[0036] Optionally, the access network device associates TCI status information with a first frequency domain resource group, and power control information with the first frequency domain resource group, thus determining a first association between the TCI status information and the power control information. In other words, the access network device can associate TCI status information with power control information through the first frequency domain resource group. By configuring power control information associated with different TCI states at the granularity of frequency domain resource groups, configuration overhead can be reduced.

[0037] Optionally, the TCI status information includes a first TCI status or a first TCI status group. Optionally, the TCI status information may include a first TCI status associated with a first frequency domain resource group, or a first TCI status group associated with a first frequency domain resource group. The first TCI status may be one or more, and the first TCI status group may include one or more TCI states.

[0038] Optionally, the power control information may include one or more power control parameters. The first association relationship may include the correspondence between the identifier of the first TCI state and the identifier (or index) of the power control parameter. For example, if there are multiple first TCI states, the first association relationship may include the correspondence between the identifier of each TCI state and the identifier of each power control parameter. This correspondence may be one-to-one or one-to-many, without limitation. Alternatively, the first association relationship may include the correspondence between the identifier of the first TCI state group and the identifier (or index) of the power control parameter.

[0039] In one possible implementation, the power control method may further include: receiving a signal on at least one frequency domain resource in a first frequency domain resource group, wherein the transmit power of the signal is determined based on power control information.

[0040] In one possible implementation, the frequency domain resources are: a portion of the bandwidth or a carrier.

[0041] Optionally, the power control information includes at least one of the following corresponding to the first frequency domain resource group: path loss information, transmission power control (TPC) information, and open-loop power control information.

[0042] Optionally, the path loss information includes the path loss value corresponding to the first frequency domain resource group.

[0043] Fifthly, a communication device is provided. This communication device is used to execute the power control method described in any one of the implementations of the first to fourth aspects.

[0044] It should be understood that the communication device described in the fifth aspect includes modules, units, or means that implement the power control method described in any of the first to fourth aspects. These modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units for performing the functions involved in the power control method described above.

[0045] A sixth aspect provides a communication device. The communication device includes a processor configured to execute the power control method described in any of the possible implementations of the first to fourth aspects.

[0046] In one possible implementation, the communication device described in the sixth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the sixth aspect and other communication devices.

[0047] In one possible implementation, the communication device described in the sixth aspect may further include a memory. This memory may be integrated with the processor or disposed separately. The memory may be used to store computer programs (or code instructions or program instructions) and / or data related to the power control method described in any of the first to fourth aspects.

[0048] A seventh aspect provides a communication device. The communication device includes a processor coupled to a memory, the processor executing a computer program stored in the memory to cause the communication device to perform the power control method described in any possible implementation of the first to fourth aspects.

[0049] In one possible implementation, the communication device described in the seventh aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the seventh aspect and other communication devices.

[0050] Eighthly, a communication device is provided, comprising: a processor and a memory; the memory is used to store a computer program, which, when executed by the processor, causes the communication device to perform the power control method described in any one of the first to fourth aspects.

[0051] In one possible implementation, the communication device described in the eighth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the eighth aspect and other communication devices.

[0052] A ninth aspect provides a communication device comprising: a processor; the processor being configured to be coupled to a memory, and after reading a computer program from the memory, to execute a power control method as described in any one of the first to fourth aspects according to the computer program.

[0053] In one possible implementation, the communication device described in the ninth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the ninth aspect and other communication devices.

[0054] In this application, the communication device described in any one of aspects five through nine can be a terminal device, a communication module, a circuit with communication function, a chip, a chip system, or other components or assemblies. The communication module, or the circuit, chip, chip system, or other components or assemblies with communication function can be applied in a terminal device. Alternatively, the communication device can be a network device (such as a radio access network (RAN) node), a communication module, a circuit, chip, chip system, or other components or assemblies with communication function. The communication module, the circuit, chip, chip system, or other components or assemblies with communication function can be applied in a network device.

[0055] In a tenth aspect, a communication system is provided. The communication system includes one or more terminal devices and one or more network devices.

[0056] Eleventhly, a computer-readable storage medium is provided, comprising: a computer program or instructions; when the computer program or instructions are executed on a computer, the computer causes the computer to perform the power control method described in any one of the possible implementations of the first to fourth aspects.

[0057] In a twelfth aspect, a computer program product is provided, comprising a computer program or instructions that, when executed on a computer, cause the computer to perform the power control method described in any one of the possible implementations of the first to fourth aspects.

[0058] Furthermore, the technical effects of the fifth to twelfth aspects mentioned above can be referred to the technical effects of the power control methods described in the first to fourth aspects, and will not be repeated here. Attached Figure Description

[0059] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0060] Figure 2 is a schematic diagram of the frequency domain resource set provided in an embodiment of this application;

[0061] Figure 3 is a flowchart illustrating a power control method provided in an embodiment of this application;

[0062] Figure 4 is a schematic diagram illustrating the relationship between the first frequency domain resource group and power control information provided in an embodiment of this application.

[0063] Figure 5 is a schematic diagram showing the relationship between the first frequency domain resource group and power control information provided in the embodiments of this application.

[0064] Figure 6 is a schematic diagram showing the relationship between the first frequency domain resource group and power control information provided in the embodiments of this application.

[0065] Figure 7 is a flowchart illustrating another power control method provided in an embodiment of this application;

[0066] Figure 8 is a schematic diagram illustrating the relationship between the first frequency domain resource group and power control information provided in the embodiments of this application.

[0067] Figure 9 is a schematic diagram showing the relationship between the first frequency domain resource group and power control information provided in the embodiments of this application.

[0068] Figure 10 is a schematic diagram of the communication device provided in an embodiment of this application;

[0069] Figure 11 is a schematic diagram of the structure of the communication device provided in the embodiment of this application. Detailed Implementation

[0070] To facilitate understanding of the embodiments of this application, the communication system applicable to the embodiments of this application will be described in detail first using the communication system shown in FIG1 as an example. Exemplarily, FIG1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application.

[0071] As shown in Figure 1, the communication system includes a radio access network (RAN), wherein the RAN includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110), and may also include at least one terminal (120a-120j in Figure 1, collectively referred to as 120). The RAN may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment (not shown in Figure 1). Terminal 120 is wirelessly connected to RAN node 110. Terminals and RAN nodes can be interconnected via wired or wireless means. The communication system may also include a core network 130. RAN node 110 is connected to core network 130 via wireless or wired means. The core network equipment in core network 130 and RAN node 110 in RAN may be independent and different physical devices, or they may be the same physical device integrating the logical functions of core network equipment and RAN nodes. The communication system may also include an Internet 140.

[0072] A RAN can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system as defined in the 3rd generation partnership project (3GPP), or it can be a WiFi system. A RAN can also include two or more of the above-mentioned different radio access systems. A RAN can also be an open RAN (O-RAN).

[0073] RAN nodes, also known as radio access network devices, RAN entities, or access nodes, are used to help terminals access communication systems wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a future mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. RAN nodes can be macro base stations (as shown in Figure 1, 110a), micro base stations or indoor stations (as shown in Figure 1, 110b), relay nodes, or donor nodes.

[0074] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes or integrated into the same RAN node, such as within a baseband unit (BBU). The RU can be included in radio frequency equipment, such as in a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane. In different systems, RAN nodes may have different names. For example, in an O-RAN system, CU can be called an open CU (O-CU), DU can be called an open DU (O-DU), and RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, a RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or equipment form used in the RAN nodes. For ease of description, a base station is used as an example of a RAN node in the following description.

[0075] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminals can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.

[0076] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0077] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. For terminals 120j that access the wireless access network 100 through 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol. In this case, relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be called communication devices with base station functions, and 120a-120j in Figure 1 can be called communication devices with terminal functions.

[0078] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0079] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0080] In this application, the base station sends downlink signals or downlink information to the terminal, with the downlink information carried on the downlink channel; the terminal sends uplink signals or uplink information to the base station, with the uplink information carried on the uplink channel. To communicate with the base station, the terminal needs to establish a radio connection on a cell controlled by the base station. The cell with which the terminal has established a radio connection is called the terminal's serving cell. When the terminal communicates with this serving cell, it is also susceptible to interference from signals from neighboring cells.

[0081] It is understood that in the embodiments of this application, the physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), and physical uplink shared channel (PUSCH) are only examples of downlink data channel, downlink control channel, and uplink data channel, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of this application do not limit this.

[0082] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0083] The technical terms and related technical solutions in this application will be described below with reference to the accompanying drawings.

[0084] 1. Parameter set (numerology):

[0085] 5G NR introduces the concept of a parameter set, which includes sub-carrier spacing (SCS) and corresponding parameters such as symbol length and cyclic prefix (CP) length. Because there is a mapping relationship between SCS and symbol length / CP length, SCS is often used instead of parameter set in some literature.

[0086] For example, the parameters involved in the parameter set are shown in Table 1.

[0087] Table 1

[0088] In Table 1, μ represents the subcarrier spacing index, or μ represents the parameter set, CP length includes the normal CP length and the extended CP length, and FR represents the frequency range (FR).

[0089] 2. TCI Status:

[0090] The UE can be configured with a list of M TCI states via higher-layer parameters to decode the PDSCH based on the detected PDCCH containing downlink control information (DCI) for the UE and a given serving cell, where M is an integer greater than 1 and depends on the UE's capabilities. Each TCI state contains parameters for configuring quasi-co-location relationships between the antenna ports of one or two reference signals and the DMRS antenna ports of the PDSCH, the DMRS antenna ports of the PDCCH, or the CSI-RS antenna ports(s) of the CSI-RS resources.

[0091] 3. Frequency domain resource set:

[0092] A frequency domain resource set refers to a collection of one or more frequency domain resources. A frequency domain resource set can support communication of a cell on frequency domain resources in at least one frequency band. That is, a frequency domain resource set includes one or more carriers within the same frequency band, or multiple carriers within multiple frequency bands. A frequency domain resource can include one or more component carriers (CCs), in which case a frequency domain resource set can include one or more carriers. It is understood that a frequency domain resource set can also be called a uni-carrier, or other possible names, which will not be elaborated further.

[0093] Optionally, frequency domain resources within the same frequency domain resource set are equivalent to a logical carrier. For example, frequency domain resources within the same set can share a single radio frequency channel, and / or the signals carried by frequency domain resources within the same set can undergo FFT operations together. As shown in Figure 2, the access network device can be configured with three frequency domain resource sets, such as frequency domain resource set 0, frequency domain resource set 1, and frequency domain resource set 2. Frequency domain resource set 0 can include multiple frequency domain resources, frequency domain resource set 1 can include multiple frequency domain resources, and frequency domain resource set 2 can include multiple frequency domain resources. Frequency domain resource set 0 is equivalent to a logical carrier, frequency domain resource set 1 is equivalent to a logical carrier, and frequency domain resource set 2 is equivalent to a logical carrier. It should be understood that some frequency domain resources within a frequency domain resource set can also be equivalent to a logical carrier.

[0094] Optionally, frequency domain resource sets can be divided according to the frequency band or frequency range in which the frequency domain resources are located. Taking CCs as an example, multiple CCs within frequency range 1 (FR1) form a frequency domain resource set, multiple CCs within frequency range 2 (FR2) form a frequency domain resource set, and multiple CCs within frequency range 3 (FR3) form a frequency domain resource set. The frequency range of FR1 is 450 MHz to 6000 MHz. FR1 can also be referred to as the 6 GHz (Sub-6 GHz) band. The frequency range of FR2 is 24250 MHz to 52600 MHz. FR2 is often referred to as the millimeter wave (mmWave) band. The frequency range of FR3 is 6000 MHz to 24250 MHz. FR3 is the band between FR1 and FR2, and is often referred to as the 24 GHz (Sub-24 GHz) band. It is understood that the frequency domain resource allocation method described here is only for illustrative purposes. In actual implementation, the same frequency domain resource set may also include CCs from different frequency ranges, or the same frequency domain resource set may include some CCs from the same frequency range. It is understood that each frequency range may include at least one frequency band.

[0095] For any two frequency domain resources in the same frequency domain resource set, they can be co-located (i.e. used for communication between the same access network device and terminal device) or non-co-located (i.e. used for communication between different access network devices and terminal devices).

[0096] 4. Carrier aggregation (CA):

[0097] Carrier aggregation provides greater bandwidth to a single terminal device by aggregating multiple carrier aggregation (CCs). This allows the terminal device to enjoy bandwidth equal to the total bandwidth of all CCs, thereby increasing peak rates.

[0098] CA can be applied to 3CC aggregation scenarios. In this case, a terminal device is served by three carriers simultaneously, one of which is the primary component carrier (PCC), and the other two are secondary component carriers (SCCs). The cell where the PCC is located is called the primary cell (PCell), and the cell where the SCC is located is called the secondary cell (SCell).

[0099] Based on whether the aggregated multiple CCs belong to the same frequency band and are continuous in the frequency domain, CA can be divided into the following categories: (1) Intra-band contiguous CA, where multiple CCs belong to the same frequency band and are continuous in the frequency domain. (2) Intra-band non-contiguous CA, where multiple CCs belong to the same frequency band but are not continuous in the frequency domain. (3) Inter-band CA, where multiple CCs belong to different frequency bands. In this case, the multiple CCs are usually not continuous in the frequency domain.

[0100] 5. Basic framework for uplink power control:

[0101] Uplink power control is primarily based on the basic framework of uplink power control to determine the UE transmit power. Since the Physical Random Access Channel (PRACH) is used for UE random access, and the access network equipment does not yet have UE feedback information at this time, the power calculation for the PRACH channel only involves the open-loop power control part. The power control of other channels and signals can involve both open-loop and closed-loop parts.

[0102] In uplink power control, the access network equipment calculates the UE's TPC information based on power control configuration parameters, UE feedback information, and access network equipment measurement information, and sends the TPC information to the UE through the DCI in the PDCCH. The UE maps the TPC information to a power adjustment amount and determines the final uplink transmit power based on its maximum transmit power, path loss, number of resource blocks (RBs), and transmission format.

[0103] It should be noted that in enhanced non-standalone (NSA) networking, if the UE is in a dual-connectivity state of simultaneously accessing the LTE network and the NR network, the UE may need to transmit signals on both the LTE side and the NR side. This application mainly introduces the calculation of the transmit power on the NR side.

[0104] On a specific uplink carrier in a given cell, the actual transmit power of the UE is calculated as follows (if the UE is configured with multiple uplink carriers, the power of each carrier is controlled according to the following formula):

[0105] P = min{UE's maximum transmit power on this uplink carrier, desired uplink transmit power} = min{P CMAX The formula is: {open-loop power control} + {closed-loop power control} + {other adjustment variables}. The closed-loop power control and other adjustment variables can be optional components.

[0106] The following sections will introduce each part of the above formula.

[0107] Among them, P CMAX This represents the maximum transmit power of the UE on a specific uplink carrier within a given cell, applicable to all uplink BWPs within that uplink carrier.

[0108] Open-loop power control is typically configured or adjusted by higher-layer signaling in radio resource control (RRC). It is related to the power parameters or path loss estimates configured by the higher layers, hence the term "open-loop component." Open-loop power control involves parameters such as P0, α, and PL(q). Here, P0 is the desired received power level for the access network equipment, and α is a partial path loss compensation factor with a value range of {0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1}. Both P0 and α are configured through higher-layer parameters. For the PUSCH channel, P0 and α are configured as a parameter set (P0(j), α(j)), where j is the index of the parameter set.

[0109] The role of α is to allow the terminal to partially compensate for path loss to reduce interference to neighboring cells and improve the transmission rate at the cell edge. However, this reduces the transmission power of users in the cell and near the edge, potentially leading to a decrease in the overall cell capacity. Therefore, to balance the overall cell capacity and the transmission performance at the cell edge, a suitable path loss compensation factor between 0 and 1 can be selected. In practical systems, α of 0.7 or 0.8 achieves a good balance between the overall cell capacity and the transmission performance at the cell edge, and is therefore used for PUSCH and sounding reference signal (SRS) power control. The PUCCH and PRACH channels have low throughput requirements but high transmission performance requirements for all UEs in the cell; therefore, the protocol specifies full path loss compensation, meaning that only a value of α of 1 is supported.

[0110] The “protocol” mentioned in the embodiments of this application may refer to standard protocols in the field of communications, such as LTE protocols (e.g., technical specification TS 36, i.e., the TS36 series of technical specifications) and NR protocols (e.g., the TS38 series of technical specifications) of the 3rd generation partnership project (3GPP), as well as related protocols applied to future communication systems. This application does not limit this.

[0111] PL(q) is the path loss estimate, where q is the index of the reference signal used to measure the path loss (each reference signal is associated with a specific q value), selected from a set of path loss estimates maintained by the UE. Path loss can be estimated using downlink reference signals such as SSB or CSI-RS.

[0112] For connected UEs, CSI-RS is typically provided for path loss estimation; for UEs without CSI-RS or uplink transmissions associated with common channels, SSB can be used for path loss estimation.

[0113] For the same UE, the path loss corresponding to different serving cells is generally different, and different reference signals in the same serving cell may also experience different path losses. Therefore, the same UE needs to maintain multiple path loss estimates. In actual use, a certain path loss estimate is retrieved according to the index configured or indicated by the access network equipment to calculate the transmission power.

[0114] Closed-loop power control is power control related to historical transmission power. The closed-loop power control component can include f(l), where l is the index of the closed-loop power control adjustment amount. Access network equipment can adjust the UE's transmission power through f(l), based on the UE's previous transmission performance. The adjustment information is indicated through the DCI, hence the term closed-loop adjustment. The UE's previous transmission performance is reported to the base station via a power headroom report (PHR). When the base station detects that the expected transmission power for the UE is too high based on the power headroom reported by the UE, it can instruct the UE to reduce the transmission power in the next transmission through the closed-loop adjustment information. The closed-loop adjustment information in the DCI is called the transmit power control command (TPC Command), denoted as δ(l), which is determined according to the transmission power control command mapping table defined in the protocol.

[0115] Other adjustment variables are related to power adjustments and frequency domain resource allocation and link adaptation. In other words, other adjustment variables are primarily closely related to resource allocation and link adaptation.

[0116] The power control of each uplink channel or signal is implemented based on the above-mentioned basic power control framework, which can be divided into: PRACH power control, PUSCH power control, PUCCH power control, and SRS power control, which will be introduced below.

[0117] PRACH power control:

[0118] The purpose of PRACH power control is to reduce interference to neighboring cells and reduce UE power consumption by having the UE transmit the preamble with the lowest possible power while ensuring the success rate of random access to access network equipment.

[0119] Since the PRACH channel is used for random access of the UE, the UE does not yet have historical transmission power information. Therefore, the PRACH channel adopts an open-loop power control method, that is, the UE determines the uplink transmission power based on path loss and power control parameters issued by the access network equipment.

[0120] The control procedure for the transmit power of the PRACH channel is as follows:

[0121] The access network device sends the desired preamble receive power level to the UE via SIB1 or RRC signaling. The UE then estimates the downlink path loss. Subsequently, the UE calculates the PRACH transmit power based on the access network device's parameter settings and the path loss result. If the preamble transmission fails (i.e., no random access response message is received), the transmit power is increased and the attempt is repeated until a random access response message is received or the maximum number of preamble transmissions is reached.

[0122] The formula for calculating PRACH transmit power is shown below: P PRACH =min{P CMAX ,P 0_pre +Δ preamble +(N pre -1)×Δ step +PL}[dBm

[0123] Among them, P CMAX P represents the UE's maximum uplink transmit power. 0_pre +Δ preamble +(N pre -1)×Δ step +PL is the open-loop power control section, P 0_pre +Δ preamble +(N pre -1)×Δ step This represents the target power level of the receive preamble desired by the access network equipment. Wherein, P... 0_pre This represents the target power level expected by the access network device when the PRACH preamble format is 0, while meeting preamble detection performance requirements. Δ preamble This represents the power bias value of the currently configured preamble format relative to a preamble format of 0. N pre This indicates the number of times the UE has sent a preamble (accumulated based on the number of preambles sent by the UE; the count is reset to zero if the UE receives a random access response). This value cannot exceed the maximum number of preambles that can be sent. Δ step This indicates the preamble power ramp-up step size. If the UE fails to access the network randomly before reaching the maximum number of preamble transmissions, the PRACH transmit power will ramp up and the preamble will be retransmitted. PL is the estimated downlink path loss value for the UE.

[0124] The transmit power of the PRACH channel is compensated for full path loss, which is equivalent to a path loss compensation factor α = 1.

[0125] Access network equipment transmits P via SIB1 or RRC signaling 0_pre Δ step The data is sent to the UE, which then calculates the random access preamble transmit power (i.e., PRACH transmit power) according to the above formula.

[0126] PUSCH power control:

[0127] The primary purpose of PUSCH power control is to reduce interference to neighboring cells and increase cell throughput, while ensuring the rate of users at the cell edge. PUSCH power control is the process by which access network equipment adjusts the UE's uplink transmit power using TPC information.

[0128] The formula for calculating PUSCH transmit power is shown below:

[0129] Where i represents the i-th upward slot. P CMAX This represents the UE's maximum uplink transmit power. This is the open-loop power control section, in which This represents the expected received power level per RB for the access network equipment. The calculation formula is as follows:

[0130] in, This indicates the expected PUSCH transmit power level for the access network equipment during normal PUSCH demodulation. For UE relative The power bias reflects the impact of UE level, service type, and channel quality on PUSCH transmit power.

[0131] α PUSCH This is the path loss compensation factor. f(i,l) is the closed-loop power control part, i.e., the adjustment amount of the UE's PUSCH transmit power. 10×log 10 (2 μ ×M PUSCH (i))+Δ TF (i) represents other adjustment values, where μ is the subcarrier width configuration factor and the subcarrier width is 2. μ *15kHz. M PUSCH (i) represents the number of PUSCH RBs used in the i-th uplink time slot. Δ TF (i) Power bias values ​​determined for different modulation and coding scheme (MCS) levels.

[0132] Access network equipment will use RRC signaling to and α PUSCH The data is sent to the UE, which then calculates the PUSCH transmit power using the formula described above.

[0133] PUCCH power control:

[0134] The purpose of PUCCH power control is primarily to ensure PUCCH performance and reduce interference to neighboring cells. PUCCH power control is the process by which access network equipment adjusts the UE's uplink transmit power using TPC information. When a UE initially accesses or hands over to a new cell, it uses open-loop power control to calculate the initial transmit power based on the power parameters configured by the access network equipment and the path loss measured by the UE.

[0135] The formula for calculating PUCCH transmit power is shown below:

[0136] Where i represents the i-th uplink time slot. P CMAX This represents the UE's maximum uplink transmit power. This is the open-loop power control section, in which PL represents the expected received power level per RB for the access network equipment. PL is the estimated downlink path loss value for the UE, which can be obtained, for example, from the RSRP measurement and transmit power of the SSB. g(i,l) is the closed-loop power control part, i.e., the adjustment amount of the UE's PUCCH transmit power.

[0137] 10×log 10 (2 μ ×M PUSCH (i))+Δ TF (i)+Δ F_PUCCH (F) represents other adjustment values, where μ is the subcarrier width configuration factor, and the subcarrier width is 2. μ *15kHz. M PUSCH (i) represents the number of RBs used by the i-th uplink slot PUCCH. Δ TF (i) Determined by the PUCCH format, reflecting the impact of the number of uplink control information (UCI) bits carried on the PUCCH on power under different PUCCH formats. Δ F_PUCCH (F) represents the power offset value for different PUCCH formats, which is configured to the UE by the access network device via RRC signaling.

[0138] Access network equipment will use RRC signaling to Δ F_PUCCH (F) is sent to the UE, and the UE calculates the PUCCH transmit power according to the above calculation formula.

[0139] SRS power control:

[0140] The purpose of SRS power control is to ensure the accuracy of uplink channel estimation and uplink timing. SRS power control can reuse PUSCH TPC information or transmit TPC information separately. The SRS transmit power is determined by calculation based on the transmission bandwidth and SRS power control parameters.

[0141] The formula for calculating SRS transmit power is shown below:

[0142] Where i represents the i-th time slot, q s Indicates the SRS resource set number. P CMAX This represents the UE's maximum uplink transmit power. This is the open-loop power control section, in which α represents the expected received power level per RB for SRS access network equipment. SRS PL is the path loss compensation factor. PL is the downlink path loss value estimated by the UE, which can be obtained, for example, from the RSRP measurement of the SSB and the SSB transmit power. h(i,l) is the closed-loop power control part. 10×log 10 (2 μ ×M SRS (i) represents other adjustment values, where μ is the subcarrier width configuration factor and the subcarrier width is 2. μ *15kHz. M SRS This indicates the SRS transmission bandwidth.

[0143] Access network equipment will use RRC signaling to α SRS The data is sent to the UE, which then calculates the SRS transmit power using the formula described above.

[0144] In wireless communication systems, access network equipment can configure carriers for communication on terminal equipment, which can then communicate on the frequency domain resources configured by the access network equipment. In the above-mentioned frequency domain resource configuration scheme, the power control parameters for each carrier are configured differently, resulting in a large number of configurations and significant overhead.

[0145] To address the aforementioned technical problems, this application provides a power control method. In this method, the access network device can configure power control information for the terminal device at the granularity of frequency domain resource groups, such as power control information for a first frequency domain resource group. This power control information is applied to at least two frequency domain resources within the first frequency domain resource group. This eliminates the need for the first terminal to determine the power control information for each frequency domain resource separately when transmitting signals on at least one frequency domain resource in the first frequency domain resource group, thus reducing computational overhead. Furthermore, the power control information for at least two frequency domain resources in the first frequency domain resource group can be indicated by the same information, thereby reducing signaling overhead.

[0146] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0147] It should be noted that the power control method provided in this application embodiment can be applied between any two devices shown in Figure 1, such as between a terminal device and a network device. For specific implementation, please refer to the following method embodiment, which will not be repeated here.

[0148] It should be noted that the solutions in the embodiments of this application can also be applied to other communication systems, and the corresponding names can be replaced by the names of the corresponding functions in other communication systems.

[0149] The power control method provided in the embodiments of this application will be described in detail below with reference to Figure 3.

[0150] For example, Figure 3 is a schematic flowchart of a power control method provided in an embodiment of this application. This power control method can be applied to communication between a first communication device (the terminal device shown in Figure 1) and a second communication device (the terminal device or access network device shown in Figure 1). For ease of understanding, the following embodiments will use the first communication device as the first terminal and the second communication device as the access network device as examples.

[0151] As shown in Figure 3, the power control method includes:

[0152] S301, the access network equipment determines the power control information of the first frequency domain resource group.

[0153] The first frequency domain resource group belongs to the first frequency domain resource set. The access network device can determine the power control information of multiple frequency domain resource groups in the first frequency domain resource set and send the power control information of multiple frequency domain resource groups to the first terminal. Optionally, the first frequency domain resource set corresponds to a cell. Here, "cell" is an exemplary description and can be replaced with a serving cell, serving area, waveband, or any description of an area used by the network to provide services to terminal devices. For ease of explanation, this application embodiment uses the power control information of the first frequency domain resource group in the first frequency domain resource set as an example.

[0154] The first frequency domain resource group includes at least two frequency domain resources, and power control information is applied to at least two frequency domain resources in the first frequency domain resource group. That is, at least two frequency domain resources in the first frequency domain resource group share the power control information, or in other words, the frequency domain resources in the first frequency domain resource group correspond to the same power control information. The power control information can be used by the first terminal to determine the uplink transmit (transmit) power of the signal transmitted on at least two frequency domain resources in the first frequency domain resource group.

[0155] The power control information may include one or more power control parameters. Optionally, the power control information may also include an identifier / index corresponding to each of the multiple power control parameters. The specific power control parameters included in the power control information are described below and will not be repeated here.

[0156] In this embodiment, the power control information can be replaced with other possible expressions, such as power control configuration information, power control parameters, power control parameter groups, etc., and there is no limitation on this.

[0157] S302, the access network device sends first information to the first terminal, and correspondingly, the first terminal receives the first information from the access network device.

[0158] The first information indicates the power control information of the first frequency domain resource group. The first information can be a broadcast message or a dedicated message from the first terminal.

[0159] Optionally, the first information can be carried in system information (SI), such as in system information block 1 (SIB1). It is understood that carrying the first information in SIB1 is for illustrative purposes; in actual implementation, the first information can also be carried in other system information blocks within the system information, or in other possible messages outside of the system information, which will not be elaborated further.

[0160] Optionally, the first information can be carried in higher-level signaling, such as RRC signaling or MAC control element (medium access control-control element, MAC CE) signaling.

[0161] Optionally, the first information can be carried in physical layer signaling, such as DCI.

[0162] S303, the first terminal transmits a signal on at least one frequency domain resource in the first frequency domain resource group according to the power control information.

[0163] The first terminal determines that the frequency domain resource belongs to the first frequency domain resource group based on the frequency domain resource of the signal transmission, and determines the uplink transmission power of the signal based on the power control information of the first frequency domain resource group, and then transmits the signal on the frequency domain resource according to the uplink transmission power.

[0164] The signals may include at least one of the following: PUSCH, PUCCH, PRACH, SRS, DMRS, etc.

[0165] In this way, the access network device can configure power control information for the first frequency domain resource group for the terminal device, and the power control information is applied to at least two frequency domain resources in the first frequency domain resource group. This allows the first terminal to transmit signals on at least one frequency domain resource in the first frequency domain resource group without needing to determine the power control information corresponding to each frequency domain resource separately, thus reducing computational overhead. Furthermore, the power control information corresponding to at least two frequency domain resources in the first frequency domain resource group can be indicated by the same information, thereby simplifying the first information and reducing communication overhead.

[0166] The overall flow of the power control method provided in the embodiments of this application has been described above. For ease of understanding, S301 and S302 are described in detail below.

[0167] First, we will introduce the granularity of frequency domain resource group division in the frequency domain resource set.

[0168] Optionally, frequency domain resources can be: partial bandwidth or carrier. That is, frequency domain resource groups can be divided at the granularity of partial bandwidth or carrier, and the first frequency domain resource group includes at least two partial bandwidths or carriers. Of course, frequency domain resource groups can also be divided at the granularity of other frequency domain resources, such as RB groups, RB sets, etc. This application does not impose any restrictions on this.

[0169] It should be understood that frequency domain resources can be continuous or non-continuous, and there are no specific restrictions.

[0170] For example, the first frequency domain resource group is a frequency domain resource group used for access control or a frequency domain resource group used for data transmission.

[0171] The frequency domain resources in the frequency domain resource group used for access control are mainly used to implement connection control functions, or in other words, to carry messages for connection control, such as control plane messages / signaling. The frequency domain resource group used for access control may include frequency domain resources used for access control (denoted as the first frequency domain resource). For example, the messages for connection control carried by the first frequency domain resource may include at least one of the following: messages / signaling for camping, paging messages / signaling, wake-up messages / signaling, such as low-power wake-up signal (LP-WUS) or uplink wake-up signal, or other related messages / signaling, which will not be elaborated further. In some examples, messages / signaling for camping may include synchronization messages, random access requests, or random access preambles. When the first frequency domain resource is used for access control of the first terminal, the first frequency domain resource can also be understood as a frequency domain resource used to meet the coverage performance requirements of the first terminal.

[0172] When the first frequency domain resource is used for access control of the first terminal, optionally, the first frequency domain resource may include frequency domain resources used to carry downlink signals in the access control process (also referred to as downlink anchor frequency domain resources), and / or frequency domain resources used to carry uplink signals in the access control process (also referred to as uplink anchor frequency domain resources). As an example, when the first frequency domain resource is a frequency division multiplexing (FDM) frequency domain resource, i.e., when uplink and downlink use frequency division, the first frequency domain resource may include uplink anchor frequency domain resources and / or downlink anchor frequency domain resources. It is understood that in time division multiplexing (TDM), i.e., when uplink and downlink use time division, the first frequency domain resource may also include uplink anchor frequency domain resources and downlink anchor frequency domain resources. For example, the functions of the uplink anchor frequency domain resources and downlink anchor frequency domain resources can be implemented through resources at different frequency domain positions (i.e., different frequency domain resources) on the first frequency domain resource, and / or resources at different time domain positions (i.e., different time domain resources). The first frequency domain resource can be one or more, without specific limitations.

[0173] The frequency domain resource group used for data transmission may include frequency domain resources used for data transmission (denoted as the second frequency domain resource), which are used to carry service data.

[0174] The second frequency domain resource may include frequency domain resources for uplink transmission and / or frequency domain resources for downlink transmission. As an example, when the second frequency domain resource is an FDM frequency domain resource, it may include frequency domain resources for uplink transmission and / or frequency domain resources for downlink transmission. It is understood that in TDM, the second frequency domain resource may also include frequency domain resources for uplink transmission and frequency domain resources for downlink transmission. For example, the frequency domain resources for uplink transmission and the frequency domain resources for downlink transmission may be resources at different time domain locations on the same frequency domain resource (i.e., different time domain resources), and / or resources at different frequency domain locations (i.e., different frequency domain resources).

[0175] If the first frequency domain resource is used to meet the coverage performance requirements of the terminal device, and the second frequency domain resource is used to carry the data channel, then in this case, the first frequency domain resource can also be called the anchor frequency domain resource or the coverage frequency domain resource. The second frequency domain resource can be called the capacity frequency domain resource.

[0176] In some possible implementations, the first frequency domain resource group may not distinguish between the first frequency domain resources (i.e., anchor frequency domain resources) and the second frequency domain resources (i.e., capacity frequency domain resources). Alternatively, the first frequency domain resource group may include only the second frequency domain resources, i.e., capacity frequency domain resources.

[0177] For a terminal device (such as the first terminal), the anchor frequency domain resources and capacity frequency domain resources can come from different access network devices.

[0178] Optionally, anchor frequency domain resources can also be called anchor CC, or coverage CC, or other names are not limited. Capacity frequency domain resources can also be called capacity CC, or other names are not limited.

[0179] Secondly, the rules for dividing frequency domain resource groups are introduced.

[0180] Optionally, a frequency domain resource group corresponds to a frequency band. For example, the first frequency domain resource set includes a first frequency domain resource group, a second frequency domain resource group, and a third frequency domain resource group. The first frequency domain resource group, the second frequency domain resource group, and the third frequency domain resource group correspond to different frequency bands.

[0181] Taking frequency domain resources as CC as an example, CCs in frequency bands less than 1 GHz (sub 1 GHz) correspond to CC group #1 (i.e., the first frequency domain resource group), CCs in frequency bands from 1 GHz to less than 6 GHz (sub 6 GHz) correspond to CC group #2, and CCs in frequency bands from 24 GHz to 28 GHz correspond to CC group #3. Taking frequency domain resources as BWP as an example, the BWPs in the FR1 band correspond to BWP group #1 (i.e., the first frequency domain resource group), the BWPs in the FR2 band correspond to BWP group #2, and the BWPs in the FR3 band correspond to BWP group #3. The frequency range of FR1 is 450 MHz to 6000 MHz. FR1 can also be called the 6 gigahertz (sub-6 gigahertz, sub-6 GHz) band. The frequency range of FR2 is 24250 MHz to 52600 MHz. FR2 is commonly referred to as the millimeter wave (mmWave) band. The frequency range of FR3 is 6000MHz to 24250MHz. FR3 is the frequency band between FR1 and FR2, and is often referred to as the 24GHz (Sub-24 GHz) band.

[0182] The first frequency domain resource group can be determined according to predefined rules. In other words, multiple frequency domain resource groups in the first frequency domain resource set can be determined according to predefined rules without instruction, thus saving signaling overhead. For example, multiple frequency domain resource groups in the first frequency domain resource set can be predefined based on different frequency bands / frequency points. The first frequency domain resource set can be pre-configured in the first terminal and access network equipment, such as through system information. Each frequency domain resource set can be configured through a corresponding system information, or multiple frequency domain resource sets can be configured through the same system information; there are no specific restrictions. For two frequency domain resources in the first frequency domain resource set, they can be co-located (i.e., used for communication between the same access network equipment and the terminal equipment) or non-co-located (i.e., used for communication between different access network equipment and the terminal equipment).

[0183] In the embodiments of this application, "preset", "predefined", or "preconfigured" can be implemented by pre-storing the corresponding code, table or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), or by being pre-defined in the protocol. This application does not limit the specific implementation method.

[0184] The first frequency domain resource group can also be configured by the access network equipment, which then sends the configuration information of the first frequency domain resource group to the first terminal to achieve dynamic configuration. The grouping method can be relatively flexible. For example, the first information may also indicate the frequency domain resources included in the first frequency domain resource group. For instance, the first information may indicate at least one of the following for each frequency domain resource included in the first frequency domain resource group: identifier, location, or bandwidth size. The power control information of the first frequency domain resource group and the information indicating the frequency domain resources included in the first frequency domain resource group can be carried in the same message / signaling, such as in different cells of the same message, or in different messages; there are no restrictions on this.

[0185] In the above embodiments, only the first frequency domain resource group is used as an example for illustration. In actual implementation, the access network device in the communication system can configure M frequency domain resource groups for the first terminal and send first information. The first information is used to determine the power control information of each frequency domain resource group in the M frequency domain resource groups. M is an integer greater than or equal to 1. At this time, when M=1, the M frequency domain resource groups are equivalent to the aforementioned first frequency domain resource group, and the corresponding power control information in each of the M frequency domain resource groups is equivalent to the power control information of the first frequency domain resource group. When M is greater than 1, the aforementioned first frequency domain resource group is one of the M frequency domain resource groups. Each frequency domain resource group in the M frequency domain resource groups can include at least two frequency domain resources, or, in addition to the first frequency domain resource group, there can also be a frequency domain resource group in the M frequency domain resource groups that includes one frequency domain resource. The implementation of each of the M frequency domain resource groups can refer to the relevant introduction of the first frequency domain resource group. The implementation of the power control information of each of the M frequency domain resource groups can refer to the relevant introduction of the power control information of the first frequency domain resource group, and will not be elaborated here.

[0186] The power control parameters included in the power control information are described in detail below.

[0187] In one possible implementation, the power control information includes at least one of the following: path loss information, TPC information, and open-loop power control information.

[0188] Among them, path loss information is used to determine the loss generated during the path transmission of the signal between the access network equipment and the first terminal.

[0189] Optionally, the path loss information may include a path loss measurement reference signal. The path loss measurement reference signal may be an SSB, CSI-RS, or other reference signal used for path loss measurement, and there is no limitation thereto. Thus, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same path loss measurement reference signal, the overhead of the reference signal can be reduced.

[0190] Optionally, the path loss information may include the transmit power of the path loss measurement reference signal, or the expected received power, etc. Thus, the first terminal can calculate and determine the path loss value based on the path loss information and the received power of the reference signal. For example, path loss value = transmit power - received power. Furthermore, having the same transmit power or expected received power for the same path loss measurement reference signal in the first frequency domain resource group can reduce signaling overhead.

[0191] Optionally, the path loss information may also include the path loss value corresponding to the first frequency domain resource group.

[0192] The path loss value corresponding to the first frequency domain resource group can be determined by the access network equipment through artificial intelligence (AI) models, channel maps, prior knowledge, empirical knowledge, and the correspondence between location information and path loss value. This application does not limit this.

[0193] Among them, TPC information is used to determine closed-loop power control parameters or closed-loop power control adjustment amounts, such as TPC parameters.

[0194] TPC information may include transmission power control commands from the DCI.

[0195] For example, the TPC command field in DCI can include 2 bits to indicate the value in Table 2.

[0196] Table 2:

[0197] Among them, the open-loop power control information is used to determine the open-loop power control parameters.

[0198] In the embodiments of this application, "for indicating" can include both direct and indirect indication. The information indicated by one piece of information is called the information to be indicated. In specific implementations, there are many ways to indicate the information to be indicated, such as, but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or its index. It can also indirectly indicate the information to be indicated by indicating other information, where there is a relationship between the other information and the information to be indicated. It can also indicate only a part of the information to be indicated, while the other parts are known or pre-agreed upon. Furthermore, the specific indication method can be any existing indication method, such as, but not limited to, the above-mentioned indication methods and their various combinations.

[0199] The information to be indicated can be sent as a whole or divided into multiple sub-information messages, and the sending period and / or timing of these sub-information messages can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information messages can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device. This configuration information can include, for example, but not limited to, higher-layer signaling and / or physical-layer signaling. For example, higher-layer signaling can include RRC signaling or MAC layer signaling. This configuration information can include, for example, but not limited to, one or a combination of at least two of higher-layer and physical-layer signaling. MAC layer signaling includes, for example, MAC CE; physical (PHY) layer signaling includes, for example, DCI.

[0200] Optionally, the open-loop power control information may include power parameters configured by the RRC higher layers and some power control parameters related to path loss compensation. For example, the open-loop power control information may include the expected received power level of the access network equipment, path loss compensation factors, etc. The open-loop power control information can refer to the parameters involved in the open-loop power control section of the aforementioned basic framework for uplink power control, such as... α PUSCH , Δ F_PUCCH (F), P 0_SRS α SRS Etc., will not be elaborated upon here.

[0201] In one possible implementation, the first information also indicates power control information for a second frequency domain resource group, which includes the offset between the power control parameters corresponding to the second frequency domain resource group and the power control parameters corresponding to the first frequency domain resource group.

[0202] The second frequency domain resource group and the first frequency domain resource group belong to the first frequency domain resource set. The implementation of the second frequency domain resource group can refer to the relevant introduction of the first frequency domain resource group. The difference is that the frequency domain resources in the second frequency domain resource group have different frequency bands / ranges than those in the first frequency domain resource group.

[0203] If the power control information of the first frequency domain resource group includes the path loss value, and the power control information of the second frequency domain resource group includes the offset between the path loss value corresponding to the second frequency domain resource group and the path loss value corresponding to the first frequency domain resource group (denoted as offset #1), then the first terminal can determine the path loss value corresponding to the second frequency domain resource group through offset #1.

[0204] For example, as shown in Figure 4, the first frequency domain resource set includes CC group #0 (i.e., the first frequency domain resource group) and CC group #1 (i.e., the second frequency domain resource group). CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. CC group #0 corresponds to path loss value #0, and CC group #1 corresponds to path loss value #1. The access network device can indicate the path loss value #0 corresponding to CC group #0 and the path loss value #1 corresponding to CC group #1 to the first terminal, respectively. Alternatively, the access network device determines the offset #1 between path loss value #0 and path loss value #1, and indicates the path loss value #0 and offset #1 corresponding to CC group #0 to the first terminal. Then, the first terminal calculates the path loss value #1 using the path loss value #0 and offset #1, for example, path loss value #1 = path loss value #0 + offset #1. Here, "+" can also be replaced with "-", or other mathematical operations, which are not limited in this application.

[0205] If the power control information of the first frequency domain resource group includes TPC information (i.e., the TPC parameters of the first frequency domain resource group), and the power control information of the second frequency domain resource group includes the offset between the TPC parameters of the second frequency domain resource group and the TPC parameters of the first frequency domain resource group (denoted as offset #2), then the first terminal can determine the TPC parameters of the second frequency domain resource group through offset #2.

[0206] For example, as shown in Figure 5, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. CC group #0 corresponds to TPC parameter #0, and CC group #1 corresponds to TPC parameter #1. The access network device can indicate the TPC parameter #0 corresponding to CC group #0 and the TPC parameter #1 corresponding to CC group #1 to the first terminal through the first information. Alternatively, the access network device determines the offset #2 between TPC parameter #0 and TPC parameter #1, and indicates the TPC parameter #0 corresponding to CC group #0 and the offset #2 to the first terminal through the first information. Then, the first terminal calculates the TPC parameter #1 through the TPC parameter #0 and the offset #2, for example, TPC parameter #1 = TPC parameter #0 + offset #2. Here, "+" can also be replaced with "-", or other mathematical operations, which are not limited in this application.

[0207] If the power control information of the first frequency domain resource group includes open-loop power control information (i.e., the open-loop power control parameters of the first frequency domain resource group), and the power control information of the second frequency domain resource group includes the offset between the open-loop power control parameters of the second frequency domain resource group and the open-loop power control parameters of the first frequency domain resource group (denoted as offset #3), then the first terminal can determine the open-loop power control parameters of the second frequency domain resource group through offset #3.

[0208] Taking the open-loop power control parameter as the expected received power P0 of the access network device as an example, as shown in Figure 6, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. CC group #0 corresponds to P0#0, and CC group #1 corresponds to P0#1. The access network device can indicate P0#0 corresponding to CC group #0 and P0#1 corresponding to CC group #1 to the first terminal through the first information. Alternatively, the access network device determines the offset #3 between P0#0 and P0#1, and indicates P0#0 corresponding to CC group #0 and offset #3 to the first terminal through the first information. Then, the first terminal calculates P0#1 through P0#0 and offset #3, for example, P0#1 = P0#0 + offset #3. Here, "+" can also be replaced with "-", or other mathematical operations, which are not limited in this application.

[0209] In other words, the access network device indirectly indicates the power control parameters corresponding to the second frequency domain resource group to the first terminal through the offset between the power control parameters corresponding to the second frequency domain resource group and the power control parameters corresponding to the first frequency domain resource group, thereby reducing the overhead of signaling indication.

[0210] It is understood that the first information can also indicate power control information for other frequency domain resource groups besides the first and second frequency domain resource groups. The implementation of the first information indicating power control information for other frequency domain resource groups can be found in the relevant introductions to the first or second frequency domain resource groups, and will not be elaborated upon here.

[0211] Optionally, the access network equipment can also configure power control information for other frequency domain resource groups besides the first and second frequency domain resource groups through other information, without limitation.

[0212] In some possible embodiments, the access network device can configure power control information for each of the M frequency domain resource groups, and the first communication device can simultaneously transmit signals on at least two frequency domain resources in the M frequency domain resource groups. The following description uses an example where the M frequency domain resource groups include a first frequency domain resource group and a second frequency domain resource group.

[0213] The first communication device can simultaneously transmit signals on frequency domain resources in both a first and a second frequency domain resource group. The first communication device can transmit signals on frequency domain resources in the first frequency domain resource group based on power control information from the first frequency domain resource group, and also transmit signals on frequency domain resources in the second frequency domain resource group based on power control information from the second frequency domain resource group.

[0214] Alternatively, the first communication device may transmit signals on at least two frequency domain resources in the M frequency domain resource groups using the same power control information. For example, the first communication device may transmit signals on at least two frequency domain resources in the M frequency domain resource groups based on the power control information of any frequency domain resource group in the M frequency domain resource groups. Another example is that the first communication device may transmit signals on at least two frequency domain resources in the M frequency domain resource groups based on the power control information of the frequency domain resource group where the anchor CC is located. Yet another example is that the first communication device may receive the identifier of a frequency domain resource group from the access network equipment and transmit signals on at least two frequency domain resources in the M frequency domain resource groups based on the power control information of the frequency domain resource group corresponding to that identifier.

[0215] Thus, by using different methods to transmit signals on at least two frequency domain resources in M ​​frequency domain resource groups through the first communication device, different transmission scenarios can be adapted. If signals are transmitted on frequency domain resources in different frequency domain resource groups according to the power control information corresponding to different frequency domain resource groups, the indication overhead can be reduced and the communication performance can be improved. If signals are transmitted on frequency domain resources in different frequency domain resource groups according to a set of power control information, the computational overhead can be reduced, and the complexity of signal transmission by the terminal device can be reduced.

[0216] In some possible embodiments, the power control information of the first frequency domain resource group is associated with the TCI state / TCI state group, and the first communication device can determine the power control information of the first frequency domain resource group through the TCI state / TCI state group. The following description is in conjunction with Figure 7. It should be noted that "first," "second," etc., are expressions at the embodiment level, and the content indicated by "first," "second," etc., in the embodiments corresponding to Figure 3 and Figure 7 may differ. As shown in Figure 7, the power control method includes:

[0217] S701, the access network device determines the first association between TCI status information and power control information.

[0218] Optionally, the access network device associates TCI status information with a first frequency domain resource group, and power control information with the first frequency domain resource group, thus determining a first association relationship between the TCI status information and the power control information. In other words, the access network device can associate TCI status information with power control information through the first frequency domain resource group. The first frequency domain resource group belongs to a first frequency domain resource set. The access network device can also determine the association relationship between each frequency domain resource group in the first frequency domain resource set and the TCI status information and power control information. This embodiment of the application uses the first association relationship determined based on the first frequency domain resource group as an example for description.

[0219] The TCI status information includes a first TCI status or a first TCI status group. Optionally, the TCI status information may include a first TCI status associated with a first frequency domain resource group, or a first TCI status group associated with a first frequency domain resource group. The first TCI status may be one or more, and the first TCI status group may include one or more TCI states.

[0220] The power control information can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0221] Optionally, the power control information may include one or more power control parameters. The first association relationship may include the correspondence between the identifier of the first TCI state and the identifier (or index) of the power control parameter. For example, if there are multiple first TCI states, the first association relationship may include the correspondence between the identifier of each TCI state and the identifier of each power control parameter among the multiple power control parameters. This correspondence relationship may be one-to-one or one-to-many, without limitation.

[0222] For example, as shown in Figure 8, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. The access network device configures CC group #0 to correspond with TCI state #0, and CC group #1 to correspond with TCI state #1 and TCI state #2. Furthermore, the access network device configures CC group #0 to correspond with TPC parameter #0, and CC group #1 to correspond with TPC parameter #1 and TPC parameter #2. Further, the access network device configures TCI state #0 to be associated with TPC parameter #0, TCI state #1 to be associated with TPC parameter #1, and TCI state #2 to be associated with TPC parameter #2.

[0223] Alternatively, the first association may include the correspondence between the identifier of the first TCI state group and the identifier (or index) of the power control parameter.

[0224] For example, as shown in Figure 9, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. The access network device configures CC group #0 to correspond with TCI status group #0, and CC group #1 to correspond with TCI status group #1 and TCI status group #2. Furthermore, the access network device configures CC group #0 to correspond with TPC parameter #0, and CC group #1 to correspond with TPC parameter #1 and TPC parameter #2. Further, the access network device configures TCI status group #0 to be associated with TPC parameter #0, TCI status group #1 to be associated with TPC parameter #1, and TCI status group #2 to be associated with TPC parameter #2.

[0225] Optionally, the first association may also include the association between the first frequency domain resource group, the TCI status information and the power control information, that is, any two items between the first frequency domain resource group, the TCI status information and the power control information are mutually associated.

[0226] The implementation of the first frequency domain resource group can refer to the implementation of the first frequency domain resource group in S301, and the implementation of power control information can refer to the implementation of power control information in S301, which will not be elaborated here.

[0227] S702, the access network device sends first information to the first terminal, and correspondingly, the first terminal receives the first information from the access network device.

[0228] The first information is used to indicate the first association. The signaling carried by the first information can be referred to in the relevant description in S302, and will not be repeated here.

[0229] S702 can be optional.

[0230] One possible implementation is that the access network device and / or the first terminal can determine the first association relationship according to rules predefined in the protocol. For example, the first TCI status information identifier is the same as the power control information identifier, meaning they are associated. For instance, if the identifier of the first TCI status group is the same as the identifier of a power control parameter, it indicates that the first TCI status group is associated with that power control parameter, i.e., they have a first association relationship.

[0231] S703, the first terminal determines the power control information associated with the first TCI state or the first TCI state group.

[0232] Optionally, the first terminal determines the power control information associated with the first TCI state or the first TCI state group based on the first information. In this case, S703 follows S701 and S702.

[0233] Optionally, the first terminal determines the power control information associated with the first TCI state or the first TCI state group according to predefined rules in the protocol. In this case, the order of S703 and S701 is not limited. For example, S703 and S701 can be performed simultaneously, with S703 after S701, or S703 before S701.

[0234] Different access network devices have different TCI states, and the first terminal can determine different power control information based on the different TCI states. For example, in a dynamic site selection scenario, the same carrier frequency can communicate with multiple non-co-located access network devices. The first terminal determines the power control information associated with the first TCI state based on the first TCI state and the first association relationship in the DCI from the access network device (such as the first access network device).

[0235] S704, the first terminal transmits a signal on at least one frequency domain resource in the first frequency domain resource group according to the power control information.

[0236] In the above embodiments, only the first frequency domain resource group is used as an example for illustration. In actual implementation, the access network device in the communication system can configure M frequency domain resource groups for the first terminal and send first information. The first information is used to determine the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status information and power control information. M is an integer greater than or equal to 1. At this time, when M=1, the M frequency domain resource groups are equivalent to the above-mentioned first frequency domain resource group, and the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status information and power control information is equivalent to the first association relationship. When M is greater than 1, the above-mentioned first frequency domain resource group is one of the M frequency domain resource groups. The implementation of each frequency domain resource group in the M frequency domain resource groups can refer to the relevant introduction of the first frequency domain resource group, and the implementation of the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status information and power control information can refer to the relevant introduction of the first association relationship, and will not be elaborated further.

[0237] In this way, the access network device determines the first association between TCI status information and power control information at the granularity of frequency domain resource groups. The first terminal can determine the power control information associated with the current TCI status (i.e., the first TCI status) based on the first association and send signals according to the power control information associated with the current TCI status. In this way, configuring the power control information associated with different TCI statuses at the granularity of frequency domain resource groups can reduce configuration overhead and signaling overhead.

[0238] The various implementation schemes of the above embodiments can be used individually or in combination, and there are no restrictions on this.

[0239] It is understood that, in order to achieve the functions in the above embodiments, the base station and terminal include hardware structures and / or software modules corresponding to perform each function. Those skilled in the art should readily recognize that, based on the units and method steps described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0240] The power control method provided by the embodiments of this application has been described in detail above with reference to Figures 3-9. The communication device for performing the power control method provided by the embodiments of this application is described in detail below with reference to Figures 10 and 11.

[0241] Figures 10 and 11 are schematic diagrams of possible communication devices provided in embodiments of this application. These communication devices can be used to implement the functions of terminals or base stations in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device can be the terminal 120 shown in Figure 1, the base station 110 shown in Figure 1, or a module (such as a chip) applied to a terminal or base station.

[0242] As shown in Figure 10, the communication device 1000 includes a processing module 1010 and a transceiver module 1020.

[0243] In some embodiments, the communication device 1000 may be adapted to the communication system shown in FIG1 to perform the function of the first terminal in the power control method shown in FIG3. For ease of explanation, FIG10 only shows the main components of the communication device 1000.

[0244] The transceiver module 1020 is used to receive first information, which indicates power control information of a first frequency domain resource group. The power control information is applied to at least two frequency domain resources in the first frequency domain resource group. The processing module 1001 is used to transmit signals on at least one frequency domain resource in the first frequency domain resource group according to the power control information through the transceiver module 1002.

[0245] Optionally, the transceiver module 1002 may include a receiving module and a transmitting module (not shown in FIG10). The transceiver module 1002 is used to implement the transmitting and receiving functions of the communication device 1000.

[0246] Optionally, the communication device 1000 may further include a storage module (not shown in FIG10) that stores information such as programs, instructions, or data. The processing module 1001 can read information from the storage module, enabling the communication device 1000 to perform the functions of the first terminal in the power control method shown in FIG3.

[0247] It should be understood that the communication device 1000 may be a terminal device, a communication module, a circuit or chip responsible for communication functions, a chip system, or other components or assemblies. This communication module, circuit or chip responsible for communication functions, chip system, or other components or assemblies can be applied in a terminal device. This application does not limit this.

[0248] Furthermore, the technical effects of the communication device 1000 can be seen by referring to the technical effects of the power control method shown in Figure 3, which will not be repeated here.

[0249] In other embodiments, the communication device 1000 may be adapted to the communication system shown in FIG1 to perform the functions of the access network device in the power control method shown in FIG7.

[0250] The processing module 1001 is used to determine the power control information of the first frequency domain resource group, and the power control information is applied to at least two frequency domain resources in the first frequency domain resource group; the transceiver module 1020 is used to send first information, and the first information is used to indicate the power control information.

[0251] Optionally, the transceiver module 1002 may include a receiving module and a transmitting module (not shown in FIG10). The transceiver module 1002 is used to implement the transmitting and receiving functions of the communication device 1000.

[0252] Optionally, the communication device 1000 may further include a storage module (not shown in FIG. 10) that stores information such as programs, instructions, or data. The processing module 1001 can read information from the storage module, enabling the communication device 1000 to perform the functions of the access network device in the power control method shown in FIG. 3 or FIG. 7.

[0253] It should be noted that the communication device 1000 can be a network device, a communication module, a circuit or chip responsible for communication functions, a chip system, or other components or assemblies. This communication module, the circuit or chip responsible for communication functions, the chip system, or other components or assemblies can be used in network devices.

[0254] Furthermore, the technical effects of the communication device 1000 can be seen in the technical effects of the power control method shown in Figure 3, which will not be elaborated here.

[0255] It should be understood that when the communication device 1000 is used to perform the functions of the first terminal or to perform the functions of the access network device, the processing module 1001 involved in the communication device 1000 can be implemented by a processor or processor-related circuit components, and can be a processor or processing unit; the transceiver module 1002 can be implemented by a transceiver or transceiver-related circuit components or a communication interface.

[0256] In some embodiments, the communication device 1000 may be adapted to the communication system shown in FIG1 to perform the functions of the first terminal in the method shown in FIG7.

[0257] The transceiver module 1002 is used to perform the transceiver function of the method shown in Figure 7, and the processing module 1001 is used to perform other functions of the method shown in Figure 7 besides the transceiver function.

[0258] Optionally, the transceiver module 1002 may include a receiving module and a transmitting module (not shown in FIG10). The transceiver module is used to implement the transmitting and receiving functions of the communication device 1000.

[0259] Optionally, the communication device 1000 may further include a storage module (not shown in FIG. 10) that stores programs or instructions. When the processing module 1001 executes the program or instructions, the communication device 1000 can perform the functions of the first terminal in the method shown in FIG. 7.

[0260] Optionally, the communication device 1000 may further include a storage module (not shown in FIG. 10) that stores information such as programs, instructions, or data. The processing module 1001 can read information from the storage module, enabling the communication device 1000 to perform the functions of the first terminal in the power control method shown in FIG. 7.

[0261] In some embodiments, the communication device 1000 may be adapted to the communication system shown in FIG1 to perform the functions of the access network device in the method shown in FIG7.

[0262] The transceiver module 1002 is used to perform the transceiver function of the method shown in Figure 10, and the processing module 1001 is used to perform other functions of the method shown in Figure 7 besides the transceiver function.

[0263] Optionally, the transceiver module 1002 may include a receiving module and a transmitting module (not shown in FIG10). The transceiver module is used to implement the transmitting and receiving functions of the communication device 1000.

[0264] Optionally, the communication device 1000 may further include a storage module (not shown in FIG. 10) that stores information such as programs, instructions, or data. The processing module 1001 can read information from the storage module, enabling the communication device 1000 to perform the functions of the access network device in the power control method shown in FIG. 7.

[0265] For a more detailed description of the processing unit 1310 and the transceiver unit 1320, please refer to the relevant descriptions in the method embodiments shown in Figure 3 or Figure 7.

[0266] For example, Figure 11 is a second schematic diagram of the structure of a communication device provided in an embodiment of this application. This communication device can be a terminal device or a network device, or it can be a chip (system) or other component or assembly that can be disposed in a terminal device or network device. As shown in Figure 11, the communication device 1100 may include a processor 1101. Optionally, the communication device 1100 may also include a memory 1102 and / or a transceiver 1103. The processor 1101 is coupled to the memory 1102 and the transceiver 1103, for example, they can be connected via a communication bus.

[0267] The following is a detailed description of each component of the communication device 1100 with reference to Figure 11:

[0268] The processor 1101 is the control center of the communication device 1100. It can be a single processor or a collective term for multiple processing elements. For example, the processor 1101 can be one or more central processing units (CPUs), application-specific integrated circuits (ASICs), or one or more integrated circuits configured to implement the embodiments of this application, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0269] Optionally, the processor 1101 can perform various functions of the communication device 1100 by running or executing software programs stored in the memory 1102 and calling data stored in the memory 1102.

[0270] In a specific implementation, as one embodiment, processor 1101 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG11.

[0271] In a specific implementation, as one embodiment, the communication device 1100 may also include multiple processors, such as processors 1101 and 1104 shown in FIG. 11. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). Here, a processor may refer to one or more devices, circuits, and / or processing cores used to process data (e.g., computer program instructions).

[0272] The memory 1102 is used to store the software program that executes the solution of this application, and is controlled by the processor 1101 to execute it. The specific implementation method can be referred to the above method embodiment, and will not be repeated here.

[0273] Optionally, the memory 1102 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory 1102 may be integrated with the processor 1101 or may exist independently and be coupled to the processor 1101 through the interface circuit of the communication device 1100 (not shown in FIG. 11). This application embodiment does not specifically limit this.

[0274] Alternatively, the memory may be located outside the communication device.

[0275] Transceiver 1103 is used for communication with other communication devices. For example, if communication device 1100 is a terminal device, transceiver 1103 can be used to communicate with a network device or with another terminal device. As another example, if communication device 1100 is a network device, transceiver 1103 can be used to communicate with a terminal device or with another network device.

[0276] Optionally, transceiver 1103 may include a receiver and a transmitter (not shown separately in Figure 11). The receiver is used to implement the receiving function, and the transmitter is used to implement the transmitting function.

[0277] Optionally, the transceiver 1103 can be integrated with the processor 1101 or exist independently and be coupled to the processor 1101 through the interface circuit of the communication device 1100 (not shown in FIG11). This application embodiment does not specifically limit this.

[0278] It should be noted that the structure of the communication device 1100 shown in Figure 11 does not constitute a limitation on the communication device. The actual communication device may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0279] Furthermore, the technical effects of the communication device 1100 can be referred to the technical effects of the sensing method described in the above method embodiments, and will not be repeated here.

[0280] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from the base station, which can be understood as the information being first received by other modules in the terminal (such as an RF module or antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information being first sent to other modules in the terminal (such as an RF module or antenna), and then sent to the base station by these modules.

[0281] When the aforementioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above method embodiments. The base station chip receives information from the terminal, which can be understood as the information being first received by other modules in the base station (such as an RF module or antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information being sent down to other modules in the base station (such as an RF module or antenna), and then sent to the terminal by these modules.

[0282] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0283] It is understood that the processor in the embodiments of this application can be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, field-programmable gate arrays, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0284] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, optical discs, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the ASIC can reside in a base station or terminal. The processor and the storage medium can also exist as discrete components in the base station or terminal.

[0285] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0286] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0287] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0288] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

Images