Communication method and device

Abstract

The invention provides a communication method and device, relates to the technical field of communication, and can save air interface resources. In the method, a wireless relay device can receive first information from a network device, send first data to a first reference point by using a first amplification gain, and send second data to the first reference point by using a second amplification gain. Wherein the first amplification gain and the second amplification gain are determined according to the first information, and the first amplification gain and the second amplification gain are different. The wireless relay device determines the amplification gains for sending the first data and the second data through the first information, and the network device does not need to send information twice to indicate the two gains respectively, so that air interface resources can be saved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication method and apparatus. Background Art

[0002] A network-controlled repeater (NCR) can forward data in a communication system. For example, a base station instructs the NCR of a beam index and a time resource. The NCR forwards data from the base station to a terminal on a time resource through a beam indicated by the beam index. Currently, the relevant configuration for the NCR to forward data needs to be further improved. Summary of the Invention

[0003] This application provides a communication method and apparatus, which can reduce the overhead of air interface resources.

[0004] To achieve the above object, the embodiments of this application provide the following technical solutions:

[0005] In a first aspect, a communication method is provided. This method can be executed by a wireless relay device; alternatively, it can also be executed by a module applied to the wireless relay device, such as a chip, a chip system, or a circuit; or it can also be implemented by a logic module or software that can implement all or part of the functions of the wireless relay device, and this is not limited. For ease of description, the following takes the execution by the wireless relay device as an example for illustration.

[0006] The method includes: receiving first information, where the first information is used to determine the amplification gain of data sent to a first reference point. The amplification gain of the data sent to the first reference point includes a first amplification gain and a second amplification gain, and the first amplification gain and the second amplification gain are different; sending first data to the first reference point using the first amplification gain; and sending second data to the first reference point using the second amplification gain.

[0007] Through this solution, the wireless relay device determines the first amplification gain of the first data sent and the second amplification gain of the second data sent according to the first information, and does not require the network device to send two pieces of information to respectively indicate these two gains, thereby saving air interface resources.

[0008] In combination with the first aspect, in a possible design, the first information indicates a first signal-to-noise ratio or a reference amplification gain. The first signal-to-noise ratio is the signal-to-noise ratio of sending the first data to the first reference point, or the first signal-to-noise ratio is the signal-to-noise ratio of sending the first data to the pointing direction of the first beam; the reference amplification gain is the reference amplification gain of sending the first data to the first reference point, or the reference amplification gain is the reference amplification gain of sending the first data to the pointing direction of the first beam.

[0009] Through this solution, the wireless relay device can determine the first amplification gain or the second amplification gain according to the first signal-to-noise ratio or the reference amplification gain, thereby saving air interface resources.

[0010] Combined with the first aspect, in a possible design, a first piece of information indicates a first signal-to-noise ratio; or, a first piece of information indicates a reference amplification gain.

[0011] Combined with the first aspect, in a possible design, the method further includes: receiving an enabling identifier, where the enabling identifier is used to enable the determination of the amplification gain of the data sent to the first reference point according to the first piece of information.

[0012] Through this solution, the wireless relay device can, according to the enabling identifier, determine the amplification gain of the data sent to the first reference point according to the first piece of information when enabled.

[0013] Combined with the first aspect, in a possible design, the first piece of information is further used to determine the amplification gain of the data sent to the second reference point. The amplification gain of the data sent to the second reference point includes a third amplification gain and a fourth amplification gain, and the third amplification gain and the fourth amplification gain are different; the method further includes: sending third data to the second reference point using the third amplification gain; sending fourth data to the second reference point using the fourth amplification gain, where the first amplification gain is the same as the third amplification gain, and the second amplification gain is the same as the fourth amplification gain.

[0014] Through this solution, the first piece of information can determine the amplification gain of the data sent to multiple reference points, thereby saving air interface resources.

[0015] Combined with the first aspect, in a possible design, the enabling identifier is further used to indicate enabling the determination of the amplification gain of the data sent to the second reference point according to the first piece of information.

[0016] Combined with the first aspect, in a possible design, the method further includes: receiving a third piece of information, where the third piece of information is used to determine the amplification gain of the data sent to the second reference point. The amplification gain of the data sent to the second reference point includes a third amplification gain and a fourth amplification gain, and the third amplification gain and the fourth amplification gain are different; sending third data to the second reference point using the third amplification gain; sending fourth data to the second reference point using the fourth amplification gain, where the amplification gain of the data sent to the second reference point is different from the amplification gain of the data sent to the first reference point.

[0017] Through this solution, the first piece of information is used to indicate the amplification gain of the data sent to the first reference point, and the third piece of information is used to indicate the amplification gain of the data sent to the second reference point. Thus, it is possible to indicate the amplification gain of the data sent to each reference point, improving the accuracy of the amplification gain of the data sent to each reference point.

[0018] In combination with the first aspect, in one possible design, the method further includes: receiving second information, where the second information includes the identifier of the amplification gain group corresponding to the first reference point and the identifier of the amplification gain group corresponding to the second reference point.

[0019] Through this solution, the wireless relay device can determine the amplification gain according to the identifier of the amplification gain group corresponding to the reference point, thereby reducing the indication of the amplification gain in the air interface and saving air interface resources.

[0020] In combination with the first aspect, in one possible design, the method further includes: receiving first time resource information and a cycle length, where the first time resource information is used to send first data to the first reference point, and the cycle length is the time duration between sending the first data to the first reference point and sending second data to the first reference point; the first time resource information is further used to determine a third time resource for sending the second data.

[0021] Through this solution, the wireless relay device can obtain subsequent time resource information based on the first time resource information and the cycle length, reduce the indication of time resources transmitted in the air interface, and save air interface resources.

[0022] In combination with the first aspect, in one possible design, the method further includes: receiving first indication information, where the first indication information is used to indicate the angle of the first beam, the first beam is used to send first data, and the first amplification gain meets the requirements of the power density priority, and the requirements of the power density priority are determined according to the angle of the first beam.

[0023] Through this solution, the wireless relay device can determine whether the first amplification gain meets the requirements of the power density priority according to the first indication information, so that the first amplification gain meets the requirements of the power density priority.

[0024] In combination with the first aspect, in one possible design, the angle of the first beam is the elevation angle of the first beam.

[0025] In combination with the first aspect, in one possible design, the method further includes: receiving second indication information, where the second indication information is used to enable the power density priority.

[0026] Through this solution, the wireless relay device can determine whether the first amplification gain meets the requirements of the power density priority when enabled.

[0027] In combination with the first aspect, in one possible design, the method further includes: receiving third indication information, where the third indication information indicates the position of the first reference point.

[0028] In combination with the first aspect, in a possible design, the method further includes: receiving third indication information, where the third indication information indicates the pointing direction of a first beam; sending first data to a first reference point using a first amplification gain includes: sending the first data to the first reference point in a first direction using the first amplification gain, and the first direction is determined according to the third indication information; sending second data to the first reference point using a second amplification gain includes: sending the second data to the first reference point in a second direction using the second amplification gain, and the second direction is determined according to the third indication information; the first direction is different from the second direction.

[0029] Through the above solution, the wireless relay device can send a beam to the reference point according to the position of the reference point or the pointing direction of the beam. In addition, after the position of the wireless relay device changes, it can determine the pointing direction of a new beam according to its own operation and the position of the reference point or the above-mentioned pointing direction of the beam, so as to send the beam.

[0030] In combination with the first aspect, in a possible design, the third indication information indicates the position of a first reference point or the pointing direction of a first beam.

[0031] In combination with the first aspect, in a possible design, one or more of the following information is carried by downlink control information DCI: first information, second information, third information, enable flag, time resource information, cycle length, first indication information, second indication information, third indication information, fourth indication information, or fifth indication information.

[0032] In combination with the first aspect, in a possible design, one or more of the following information is carried by radio resource control RRC information: first information, second information, third information, enable flag, time resource information, cycle length, first indication information, second indication information, third indication information, fourth indication information, or fifth indication information.

[0033] In combination with the first aspect, in a possible design, the method further includes: receiving an activation or deactivation message of MAC CE.

[0034] In a second aspect, a communication method is provided. This method can be executed by a network device; alternatively, it can also be executed by a module applied to the network device, such as a chip, a chip system, or a circuit; alternatively, it can also be implemented by a logic module or software that can implement all or part of the functions of the network device, and this is not limited. For the sake of description, the following takes the execution by the network device as an example for illustration.

[0035] The method includes: determining first information, where the first information is used to determine the amplification gain of the data sent by the wireless relay device to a first reference point, the amplification gain of the data sent to the first reference point includes a first amplification gain and a second amplification gain, and the first amplification gain and the second amplification gain are different; and sending the first information.

[0036] In combination with the second aspect, in a possible design, the first information indicates a first signal-to-noise ratio or a reference amplification gain. The first signal-to-noise ratio is the signal-to-noise ratio of the first data sent by the wireless relay device to the first reference point, or the first signal-to-noise ratio is the signal-to-noise ratio of the first data sent by the wireless relay device to the pointing direction of the first beam; the reference amplification gain is the reference amplification gain of the first data sent to the first reference point, or the reference amplification gain is the reference amplification gain of the first data sent to the pointing direction of the first beam.

[0037] In combination with the second aspect, in a possible design, one piece of first information indicates one first signal-to-noise ratio; one piece of first information indicates one reference amplification gain.

[0038] In combination with the second aspect, in a possible design, the method further includes: sending an enabling identifier, where the enabling identifier is used to enable the wireless relay device to determine the amplification gain of the data sent to the first reference point according to the first information.

[0039] In combination with the second aspect, in a possible design, the first information is further used to determine the amplification gain of the data sent by the wireless relay device to a second reference point, the amplification gain of the data sent to the second reference point includes a third amplification gain and a fourth amplification gain, the third amplification gain and the fourth amplification gain are different, the first amplification gain is the same as the third amplification gain, and the second amplification gain is the same as the fourth amplification gain.

[0040] In combination with the second aspect, in a possible design, the method further includes: sending third information, where the third information is used to determine the amplification gain of the data sent by the wireless relay device to the second reference point, the amplification gain of the data sent to the second reference point includes a third amplification gain and a fourth amplification gain, the third amplification gain and the fourth amplification gain are different, and the amplification gain of the data sent to the second reference point is different from the amplification gain of the data sent to the first reference point.

[0041] In combination with the second aspect, in a possible design, the method further includes: sending second information, where the second information includes an identifier of an amplification gain group corresponding to the first reference point and an identifier of an amplification gain group corresponding to the second reference point.

[0042] In combination with the second aspect, in a possible design, the method further includes: sending first time resource information and a cycle length, where the first time resource information is used for the wireless relay device to send first data to a first reference point, and the cycle length is the time duration between the wireless relay device sending the first data to the first reference point and sending second data to the first reference point; the first time resource information is further used to determine a third time resource, and the third time resource is used for the wireless relay device to send second data.

[0043] In combination with the second aspect, in a possible design, the method further includes: sending first indication information, where the first indication information is used to indicate the angle of a first beam, and the first beam is used for the wireless relay device to send first data.

[0044] In combination with the second aspect, in a possible design, the method further includes: sending third indication information, where the third indication information indicates the position of the first reference point or the pointing direction of the first beam.

[0045] In combination with the second aspect, in a possible design, the method further includes: sending third indication information, where the third indication information indicates the pointing direction of the first beam.

[0046] In combination with the second aspect, in a possible design, one or more of the following information is carried by downlink control information DCI: first information, second information, third information, enable flag, time resource information, cycle length, first indication information, second indication information, third indication information, fourth indication information, or fifth indication information.

[0047] In combination with the second aspect, in a possible design, one or more of the following information is carried by radio resource control RRC information: first information, second information, third information, enable flag, time resource information, cycle length, first indication information, second indication information, third indication information, fourth indication information, or fifth indication information.

[0048] In combination with the second aspect, in a possible design, the method further includes: sending an activation or deactivation message of MAC CE.

[0049] In a third aspect, a communication system is provided, including a first device and a second device, where the first device is wirelessly connected to the second device, the first device executes the method described in the first aspect and any one of its implementation manners above, and the second device executes the method described in the second aspect and any one of its implementation manners.

[0050] Fourthly, a communication device is provided, including a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the computer instructions execute the method described in the first aspect and any one of its implementation manners, or the computer instructions execute the method described in the second aspect and any one of its implementation manners.

[0051] Fifthly, a chip system is provided, including: a processor and an interface circuit; the processor and the interface circuit are interconnected by a line; the interface circuit is used to read the instructions stored in the memory, and when the instructions are executed by the processor, the chip system executes the method described in the first aspect and any one of its implementation manners, or executes the method described in the second aspect and any one of its implementation manners.

[0052] Sixthly, a chip system is provided, the chip system includes a processor, which is used to support the communication device to implement the functions described in the first aspect and any one of its implementation manners, or implement the functions described in the second aspect and any one of its implementation manners. In a possible design, the chip system further includes a memory, which is used to store the necessary program instructions and data of the communication device. The chip system can be composed of chips, or can include chips and other discrete devices.

[0053] Seventhly, a communication device is provided, the communication device has the function of implementing the method described in the first aspect and any one of its implementation manners, or has the function of implementing the method described in the second aspect and any one of its implementation manners. This function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0054] Eighthly, a communication device is provided, including: a processor; the processor is used to be coupled with the memory, and after reading the instructions in the memory, execute the method described in the first aspect and any one of its implementation manners according to the instructions, or execute the method described in the second aspect and any one of its implementation manners according to the instructions.

[0055] Ninthly, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium. When the instructions run on the communication device, the communication device is enabled to execute the method described in the first aspect and any one of its implementation manners, or the communication device is enabled to execute the method described in the second aspect and any one of its implementation manners.

[0056] In a tenth aspect, there is provided a computer program product including a computer program which, when executed by a processor, implements the method described in the first aspect and any one of its implementation manners, or implements the method described in the second aspect and any one of its implementation manners.

[0057] It can be understood that the beneficial effects that can be achieved by the methods, communication devices, computer-readable storage media, computer program products, etc. provided in the above second aspect to tenth aspect can refer to the beneficial effects in the first aspect and any one of its possible implementation manners provided above, and will not be elaborated here. Description of the Drawings

[0058] Figure 1 Schematic diagram of the architecture of the communication system applied in the embodiment of the present application;

[0059] Figure 2 Architecture diagram of the NCR in the embodiment of the present application;

[0060] Figure 3 Schematic diagram of a base station in the related art indicating beam information to the NCR;

[0061] Figure 4 Schematic diagram of a base station in the embodiment of the present application indicating beam information to the NCR;

[0062] Figure 5 Schematic diagram of the method flow in the embodiment of the present application;

[0063] Figure 6 Schematic diagram of the NCR transmitting a beam in the embodiment of the present application;

[0064] Figure 7 Schematic diagram of another method flow in the embodiment of the present application;

[0065] Figure 8 Schematic diagram of the reference point in the embodiment of the present application;

[0066] Figure 9 Schematic diagram of the cycle length in the embodiment of the present application;

[0067] Figure 10 Schematic diagram of the beam information corresponding to multiple reference points indicated by the base station to the NCR in the embodiment of the present application;

[0068] Figure 11 Another schematic diagram of the beam information corresponding to multiple reference points indicated by the base station to the NCR in the embodiment of the present application;

[0069] Figure 12 Schematic diagram of the beam information corresponding to one reference point indicated by the base station to the NCR in the embodiment of the present application;

[0070] Figure 13 Another schematic diagram of beam information corresponding to multiple reference points indicated by the base station in the embodiment of the present application;

[0071] Figure 14 Schematic diagram of the elevation angle corresponding to the reference point that can be indicated by the base station in the embodiment of the present application;

[0072] Figure 15 Schematic diagram of the communication device provided in the embodiment of the present application;

[0073] Figure 16 Another schematic diagram of the communication device provided in the embodiment of the present application. Detailed implementation manners

[0074] In the description of the present application, unless otherwise specified, " / " means that the objects associated before and after are in an "or" relationship. For example, A / B may represent A or B; "and / or" in the present application is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A and B may be singular or plural.

[0075] In the description of the present application, unless otherwise specified, "a plurality of" means two or more than two. "At least one (item)" or its similar expression below refers to any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a, b, or c may represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c may be single or multiple.

[0076] In addition, in order to facilitate a clear description of the technical solutions in the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words such as "first" and "second" do not limit the quantity and execution order, and the words such as "first" and "second" do not necessarily limit being different.

[0077] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" aims to present relevant concepts in a specific manner for easy understanding.

[0078] It can be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the embodiments throughout the specification do not necessarily refer to the same embodiments. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It can be understood that in various embodiments of the present application, the magnitude of the serial numbers of the processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0079] It can be understood that in the present application, both "when..." and "if" refer to corresponding processing under certain objective circumstances, not limited to time, and do not require a judgment action during implementation, nor does it mean the existence of other limitations.

[0080] It can be understood that some optional features in the embodiments of the present application can, in certain scenarios, be implemented independently without relying on other features, such as the current solution they are based on, to solve the corresponding technical problems and achieve the corresponding effects. In certain scenarios, they can also be combined with other features according to requirements. Correspondingly, the devices given in the embodiments of the present application can also implement these features or functions accordingly, which will not be elaborated here.

[0081] In the present application, unless otherwise specified, the same or similar parts between various embodiments can be referred to each other. In various embodiments of the present application, and in each implementation manner / implementation method / realization method in each embodiment, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments, and between each implementation manner / implementation method / realization method in each embodiment, are consistent and can be mutually referred to. The technical features in different embodiments, and in each implementation manner / implementation method / realization method in each embodiment, can be combined according to their internal logical relationships to form new embodiments, implementation manners, implementation methods, or realization methods. The implementation manners of the present application described below do not constitute a limitation to the protection scope of the present application.

[0082] Figure 1 is a schematic diagram of the architecture of the communication system to which the embodiments of the present application are applied. As Figure 1 shown, the communication system includes a radio access network (RAN) 100. Optionally, the communication system may further include a core network 200 and the Internet 300. Among them, RAN 100 includes at least one RAN node (such as Figure 1 the RAN node 110 in Figure 1The wireless relay devices 130a - 130b (collectively referred to as wireless relay device 130), where the wireless relay device can be an NCR, and the following takes the NCR as an example for introduction. The RAN 100 may also include at least one terminal (such as Figure 1 the terminals 120a - 120b in Figure 1 , collectively referred to as terminal 120). The terminal 120 is connected to the NCR 130 wirelessly, the NCR is connected to the RAN node 110 wirelessly, and the RAN node 110 is connected to the core network 200 wirelessly or by wire. The core network devices in the core network 200 and the RAN nodes 110 in the RAN 100 can be independent different physical devices, or the same physical device integrating the logical functions of the core network devices and the logical functions of the RAN nodes. Terminals can be connected to each other, NCRs can be connected to each other, and RAN nodes can be connected to each other either by wire or wirelessly.

[0083] The RAN 100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, and a future radio access system defined in the 3rd generation partnership project (3GPP), or a WiFi system. The RAN 100 may also include two or more different radio access systems as described above. The RAN 100 can also be an open RAN (O-RAN).

[0084] The RAN node, also known as a radio access network device, a RAN entity, or an access node, is used to help a terminal access a communication system wirelessly. In one application scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in the 5th generation (5G) mobile communication system, a next generation NodeB in the 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The RAN node can be a macro base station, a micro base station, or an indoor station, and can also be a relay node or a donor node.

[0085] In another application scenario, the wireless access of a terminal can be assisted by the cooperation of multiple RAN nodes, and different RAN nodes respectively implement some functions of the base station. For example, the RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete some or all of the functions of the physical layer. For the specific descriptions of the above protocol layers, reference can be made to the relevant technical specifications of 3GPP. The RU can be used to implement the functions of transmitting and receiving radio frequency signals. The CU and the DU can be two independent RAN nodes, or can be integrated in the same RAN node, for example, integrated in the baseband unit (BBU). The RU can be included in the radio frequency device, for example, included in the remote radio unit (RRU) or the active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0086] In different systems, the RAN node may have different names. For example, in the O-RAN system, the CU can be called an open CU (O-CU), the DU can be called an open DU (O-DU), and the RU can be called an open RU (O-RU). The RAN node in the embodiments of the present application can be implemented in the form of a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node can be a server loaded with the corresponding software module. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the RAN node. For the convenience of description, the base station is used as an example of the RAN node in the following description.

[0087] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal can also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely applied 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 grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, aircraft, ship, robot, robotic arm, smart home device, etc. Embodiments of this application do not limit the specific technologies and specific device forms adopted by the terminal.

[0088] The base station and the terminal can be fixed in position or movable. The base station and the terminal can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons, and artificial satellites. Embodiments of this application do not limit the application scenarios of the base station and the terminal. The base station, NCR, and terminal can all be collectively referred to as communication devices. Figure 1 The RAN node 110 in [reference] can be referred to as a communication device with base station functions. Figure 1 The terminals 120a and 120b in [reference] can be referred to as communication devices with terminal functions. Figure 1 The wireless relay devices 130a and 130b in [reference] can be referred to as communication devices with NCR functions.

[0089] An NCR is a repeater that allows network control. The NCR can send data to a specific space according to the instructions of network devices. For example, it receives data from the base station and forwards the data to a reference point. The NCR can bring better spatial directivity to the transmission of data. The reference point can be a specific geographical location, such as the center position of a certain cell. The terminal 120 can be located at the reference point and receive the signal forwarded by the NCR. Refer to Figure 2 , Figure 2The architecture diagram of NCR is shown. NCR includes a forwarding module and a mobile terminal (MT) module. Among them, the forwarding module is usually denoted as NCR-Fwd, and its function is to transparently amplify and forward physical layer signals. The MT module is usually denoted as NCR-MT, which is used to receive and feedback base station control signaling. Taking NCR as a repeater for forwarding data between the base station and the terminal as an example, the link between NCR-Fwd and the terminal is called the access link, and the link between NCR-Fwd and the base station is called the backhaul link. The link between NCR-MT and the base station is called the control link.

[0090] The base station can send control information about NCR-Fwd to NCR-MT, or in other words, the beam information of NCR, forwarding resources, etc. Among them, the forwarding resources include: beam index, time resource. The beam index indicates the direction of the transmission beam, and the time resource indicates the time resource of the transmission beam.

[0091] Exemplarily, the base station configures the beam information of NCR in a static configuration, semi-static configuration or dynamic configuration manner. The specific implementation process of the static configuration is as follows: The base station sends the beam information of NCR to NCR-MT through radio resource control (RRC) signaling. Each RRC signaling can configure a period and a certain number of forwarding resources. Each forwarding resource is a beam transmitted towards a reference point. The time resource interval of the beams transmitted towards the same reference point is the duration of this period. In one beam indication, the periods corresponding to the time resources of the beams transmitted towards each reference point are the same.

[0092] The specific implementation process of the semi-static configuration is as follows: The base station sends the beam information of NCR to NCR-MT through RRC signaling. Each RRC signaling can configure a certain number of forwarding resources. The base station activates or deactivates all or part of the configuration of the beam information of NCR configured by RRC through MAC CE.

[0093] The specific implementation process of the dynamic configuration is as follows: The base station uses downlink control information (DCI) to send control information about NCR-Fwd. For example, the base station uses DCI format 5_0 to carry the control information. 6 bits are used in this control information to indicate the beam index, so as to realize indicating 64 beam directions. The base station can configure the value of Lmax through RRC. In each DCI indication, L beam directions are indicated, where L is less than or equal to Lmax, and the beam directions and time domain resources are mapped one-to-one.

[0094] After receiving the control information, NCR-MT controls NCR-Fwd to perform corresponding operations. That is to say, the base station can realize the control of NCR-Fwd through the interaction with NCR-MT, thus reflecting the "network control" function in NCR.

[0095] Communication can be carried out between the base station and NCR, between NCR and NCR, between NCR and the terminal, etc. through authorized spectrum, or through unlicensed spectrum, or through both authorized spectrum and unlicensed spectrum at the same time; communication can be carried out through spectrum below 6 gigahertz (GHz), or through spectrum above 6 GHz, or through both spectrum below 6 GHz and spectrum above 6 GHz at the same time. Embodiments of this application do not limit the spectrum resources used for wireless communication.

[0096] In the embodiments of this application, the functions of the base station can also be performed by modules (such as chips) in the base station, or by a control subsystem that includes the functions of the base station. The control subsystem that includes the functions of the base station can be a control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal can also be performed by modules (such as chips or modems) in the terminal, or by a device that includes the functions of the terminal. The functions of NCR can also be performed by modules (such as chips or modems) in NCR, or by a device that includes the functions of NCR.

[0097] In this application, the base station sends downlink signals, downlink data or downlink information to NCR, and NCR sends them to the terminal. The downlink information is carried on the downlink channel, where the data is encoded using channel coding, and the encoded data is transmitted after constellation modulation; the terminal sends uplink signals, uplink data or uplink information to NCR, and NCR sends them to the base station. The uplink information is carried on the uplink channel, and the uplink data can also be encoded using channel coding, and the encoded data is transmitted to the satellite base station after constellation modulation.

[0098] The architecture of a Non-Terrestrial Network (NTN) system includes a transparent architecture and a regenerative architecture. For the transparent architecture, the satellite directly performs frequency conversion and forwarding of data. In the regenerative architecture, the satellite basically has various functions of a base station, such as performing baseband signal processing on data. In the satellite system with a transparent architecture, the control information comes from the ground telemetry, tracking and command (TT&C) link. Specifically, for the adjustment of the beam, the information such as the pattern of the beam is uploaded to the satellite payload through TT&C, and the satellite payload can perform corresponding transparent forwarding of the signal according to the received beam direction map. The satellite based on the NCR architecture realizes the function of TT&C in the transparent satellite through the control link. From a certain perspective, it is equivalent to the standardization of TT&C. The method of the embodiments of the present application can be applied to architectures such as the transparent architecture and the regenerative architecture.

[0099] Referring to Figure 3 , during the movement of a satellite based on the NCR architecture (or the NCR set on the satellite), it is necessary to continuously adjust the direction, power value, etc. of the beam so that the beam can point to a certain fixed position on the ground for a period of time to forward data to the terminal at that position. This process can be called beam gazing. In the related art, the base station needs to separately indicate to the NCR the beam information (such as the first beam information, the second beam information, the third beam information, etc.) sent when the NCR is located at multiple positions (such as the first position, the second position, and the third position, etc.). The beam information can indicate the angle at which the NCR sends the beam. Configuring the beam in this way requires a large amount of air interface resources. Moreover, since the DCI has a length limit, for example, the maximum is 140 bit, when using the DCI to indicate the beam information, more than 20 bits (6-bit beam index + several bits of time resource) are required to indicate 1 beam. Therefore, the beam information indicated by 1 DCI is less.

[0100] In view of the above problems, the present application proposes a communication method. Referring to Figure 4 , in this method, the base station sends data to a reference point through the NCR and indicates the beam information of the beam used by the NCR to send data at one time. The beam information may include a beam index, a time resource, an amplification gain, etc. For example, the NCR may be located at the first position as shown in Figure 4 . The NCR can calculate the beam information of the beam used to send data to the reference point when it is located at other positions (such as the second position and the third position shown in Figure 4 ) according to its own movement situation. Thus, the base station can indicate less beam information to the NCR, saving air interface resources.

[0101] Taking the data sent by the NCR relay base station to a reference point (the reference point can be a terminal) as an example, the communication method provided by the embodiments of the present application will be introduced. Refer to Figure 5 , and the process includes the following steps:

[0102] S501. The base station sends the first information to the NCR. Correspondingly, the NCR receives the first information from the base station.

[0103] The first information is used to determine the amplification gain of the data sent to the first reference point. The amplification gain of the data sent to the first reference point includes a first amplification gain and a second amplification gain, and the first amplification gain and the second amplification gain are different.

[0104] The amplification gain in the embodiments of the present application may refer to the power amplification gain used by the NCR to send a beam (or signal).

[0105] Exemplarily, the first information indicates a first signal-to-noise ratio or a reference amplification gain. Optionally, the first information includes a first signal-to-noise ratio or a reference amplification gain. The first signal-to-noise ratio is the signal-to-noise ratio of sending the first data to the first reference point, or the first signal-to-noise ratio is the signal-to-noise ratio of sending the first data to the pointing direction of the first beam.

[0106] Exemplarily. The reference amplification gain is the reference amplification gain of sending the first data to the first reference point. Or rather, the reference amplification gain is the reference amplification gain of sending the first data to the pointing direction of the first beam. In the embodiments of the present application, sending the first data to the first reference point can be replaced by: sending the first data to the pointing direction of the first beam.

[0107] The first beam is the first beam that the base station instructs the NCR to send to the first reference point, and the pointing direction of the first beam can be understood as the initial beam pointing. In other examples, such as in the example where the base station instructs the NCR to forward data to a second reference point, the example of sending data to the first reference point can be referred to, where the pointing direction of the first beam is replaced by the pointing direction of the initial beam sent to the second reference point.

[0108] In some embodiments, the base station can obtain the requirement of the first reference point for the signal-to-noise ratio of the received signal and send this signal-to-noise ratio to the NCR. This signal-to-noise ratio can be the first signal-to-noise ratio. For example, if the requirement of the first reference point for the signal-to-noise ratio of the received signal is greater than or equal to 15 dB, then the first signal-to-noise ratio can be 15 dB.

[0109] In some embodiments, if the first information indicates the first signal-to-noise ratio, the first amplification gain and the second amplification gain can be determined according to the first signal-to-noise ratio and one or more of the following information: the signal power received by the NCR, the antenna gain of the NCR, and the path loss of the signal sent by the NCR to the first reference point.

[0110] Exemplarily, the first amplification gain = the first signal-to-noise ratio - the signal power received by the NCR - the antenna gain of the NCR + the path loss of the signal sent by the NCR to the first reference point. For example, if the first signal-to-noise ratio is 3 dB, the signal power received by the NCR is 10 dB, the antenna gain of the NCR is 2 dB, and the path loss of the signal sent by the NCR to the first reference point is 5 dB, then the first amplification gain = 3 - 10 - 2 + 5 = -4 dB. When the first amplification gain is less than 0, the signal may no longer be amplified, or the amplification gain may be reduced. For another example, if the first signal-to-noise ratio is 3 dB, the signal power received by the NCR is 5 dB, the antenna gain of the NCR is 2 dB, and the path loss of the signal sent by the NCR to the first reference point is 5 dB, then the first amplification gain = 3 - 5 - 2 + 5 = 1 dB. When the first amplification gain is greater than 0, the signal sent to the first reference point is amplified using this value (such as 1 dB).

[0111] Exemplarily again, if the first information indicates a reference amplification gain, the first amplification gain can be determined based on the reference amplification gain and the first compensation value.

[0112] Optionally, the first compensation value can be determined by the compensation value of the antenna gain of the NCR and / or the compensation value of the path loss of the signal sent by the NCR to the first reference point. The compensation value of the antenna gain of the NCR can be the difference between the antenna gain of the first beam transmitted by the NCR and the antenna gain of the current beam transmitted by the NCR. For example, the compensation value of the antenna gain when the NCR transmits the second beam is the difference between the antenna gain of the first beam transmitted by the NCR and the antenna gain of the second beam transmitted by the NCR. The compensation value of the path loss of the signal sent by the NCR to the first reference point can be the difference between the path loss of the first beam transmitted by the NCR to the first reference point and the path loss of the current beam transmitted by the NCR to the first reference point. For example, the compensation value of the path loss when the NCR transmits the second beam can be the difference between the path loss of the first beam transmitted by the NCR and the path loss of the second beam transmitted by the NCR. Referring to Figure 6 , the first beam can be the beam used by the NCR to send the first data to the first reference point. The second beam can be the beam used by the NCR to send the second data to the first reference point.

[0113] In a possible way, the first amplification gain = the reference amplification gain - the compensation value of the antenna gain of the NCR + the compensation value of the path loss of the signal sent by the NCR to the first reference point. For example, if the compensation value of the antenna gain of the NCR corresponding to the amplification gain of the first beam transmitted by the NCR for the first time (i.e., the first amplification gain) and the compensation value of the path loss of the signal sent by the NCR to the first reference point are both 0, then the reference amplification value is the first amplification gain.

[0114] For another example, for the method gain (i.e., the second amplification gain) of the NCR's second transmitted beam, the reference amplification gain is 5 dB, the compensation value for the NCR's antenna gain is 2 dB, and the compensation value for the path loss of the signal transmitted by the NCR to the first reference point is 5 dB. Then the second amplification gain = 5 - 2 + 5 = 8 dB. Exemplarily, similar to the first information indicating the first signal-to-noise ratio, when the first amplification gain is less than 0, the signal may not be amplified any further based on the reference amplification gain. Or, reduce the corresponding amplification gain value based on the reference amplification gain.

[0115] According to this solution, after the NCR receives the reference amplification gain, it can compare the current NCR's antenna gain with the reference amplification gain. If the NCR's antenna gain is smaller, the obtained first amplification gain is positive, that is, the amplification gain required for the current beam is larger than the reference amplification gain to compensate for the loss of signal energy caused by the small antenna gain of the current NCR. If the path loss experienced by the access link of the NCR is larger compared with the reference amplification gain, the obtained first amplification gain is positive, that is, the amplification gain required for the current beam is larger than the reference amplification gain to compensate for the loss of signal energy caused by the large path loss.

[0116] In some embodiments, one piece of first information indicates one first signal-to-noise ratio.

[0117] In some embodiments, one piece of first information indicates one reference amplification gain.

[0118] Exemplarily, referring to Figure 4 , the first information includes the first signal-to-noise ratio of the beam transmitted by the NCR to the first reference point when the NCR is at the first position, or the reference amplification gain of the beam transmitted by the NCR to the first reference point when the NCR is at the first position, and does not include the first signal-to-noise ratio of the beam transmitted by the NCR to the first reference point when the NCR is at other positions (such as the second position, the third position, etc.) or the reference amplification gain of the beam transmitted by the NCR to the first reference point when the NCR is at other positions. The NCR can determine the first amplification gain for transmitting data when it is at the first position and the second amplification gain for transmitting data when it is at the second position, etc. according to the above examples.

[0119] It can be understood that one first signal-to-noise ratio can be multiple values, but these multiple values all indicate the first signal-to-noise ratio of the beam transmitted by the NCR to the first reference point when the NCR is at the first position. The NCR can process these multiple values to obtain the first signal-to-noise ratio used for calculating the first amplification gain. Similarly, one reference amplification gain can also be multiple values and will not be elaborated further.

[0120] S502. The NCR transmits the first data to the first reference point using the first amplification gain.

[0121] S503. The NCR sends the second data to the first reference point using a second amplification gain. The first amplification gain and the second amplification gain are determined according to the first information.

[0122] Exemplarily, referring to Figure 6 , the first data is the data that the base station sends to the NCR and needs the NCR to forward to the first reference point. The NCR can be located at the first position and send the first data using the first beam. The second data is also the data that the base station sends to the NCR and needs the NCR to forward to the first reference point. The NCR can be located at the second position and send the second data using the second beam. Among them, the first data and the second data can be the same or different. The amplification gain of the first beam is the first amplification gain, and the gain of the second beam is the second amplification gain. Among them, the first beam can be the initial beam, that is, the base station indicates the position of the reference point pointed by the initial beam or the direction of the beam pointing. Subsequently, the pointing angle of the beam sent by the NCR (such as the second beam) is obtained by the NCR's operation.

[0123] Optionally, referring to Figure 7 , in some embodiments, Figure 5 the method shown also includes S701 and S704.

[0124] S701. The base station sends the third indication information to the NCR. Correspondingly, the NCR receives the third indication information from the base station.

[0125] The third indication information indicates the position of the first reference point or the pointing direction of the first beam.

[0126] Exemplarily, the position of the first reference point can be indicated by the Global Navigation Satellite System. The pointing direction of the first beam can be indicated by the indication method in the related art (such as beam index). For example, one of 64 beam directions is indicated by 6 bits.

[0127] S704. The base station sends the fourth indication information to the NCR. Correspondingly, the NCR receives the fourth indication information from the base station.

[0128] The fourth indication information indicates the time resource for the NCR to send the first data to the first reference point, such as the first time resource. Exemplarily, the time resource of the first data can include the start time and the time length. For example, the start position of the time resource occupied by the first data and the length of this time resource.

[0129] Exemplarily, the fourth indication information can indicate the time resource by indicating the synchronization signal block (SSB).

[0130] In some embodiments, the time resources indicated by the fourth indication information may be multiple. For example, the time resources used by the NCR to send the first to the third beams to the first reference point. Refer to Figure 6 , the first time resource may be used for the NCR to send data when it is located at the first position, the second time resource may be used for the NCR to send data when it is located at the second position, and the third time resource may be used for the NCR to send data when it is located at the third position.

[0131] In other embodiments, the time resources indicated by the fourth indication information may be one. For example, the time resource used by the NCR to send the first beam to the first reference point.

[0132] Optionally, in some embodiments, the above communication method further includes S706.

[0133] S706. The base station sends fifth indication information to the NCR. Correspondingly, the NCR receives the fifth indication information from the base station.

[0134] Wherein, the fifth indication information indicates the cycle length of the time resources for the NCR to forward data to the same reference point. That is to say, the cycle length is the time duration between sending the first data to the first reference point and sending the second data to the first reference point. It can also be said that the cycle length is the time duration between sending data to the same reference point twice.

[0135] In some embodiments, the first time resource information is further used to determine the third time resource, and the NCR sends the second data to the first reference point at the third time resource. The third time resource is the time length corresponding to the first time resource plus the cycle length. The NCR can obtain the time resource for the next time to forward data to the first reference point according to the first time resource and the cycle length, so that the base station does not need to indicate the time resource for the NCR to forward signals to the same reference point each time, reducing the occupation of air interface resources. For example, the cycle length is 20 milliseconds, and the start time of the first time resource is 5 milliseconds, then the start time of the third time resource is 25 milliseconds.

[0136] It can be understood that, in some embodiments, the frequency domain resources for the NCR to send the first data to the first reference point may be pre-configured resources. In some embodiments, the fourth indication information further indicates the frequency domain resources for the NCR to send the first data to the first reference point.

[0137] S502 can be implemented as S702, and S503 can be implemented as S703.

[0138] S702. The NCR sends the first data in the first amplification gain towards the first direction. Wherein, the first direction is determined according to the third indication information.

[0139] If the third indication information indicates the position of the first reference point, the NCR may calculate the first direction based on its own position and the position of the first reference point, and send the first data in the first direction using the time resource indicated by the fourth indication information. If the third indication information indicates the pointing direction of the first beam, the NCR may send the first data in the pointing direction of the first beam using the time resource indicated by the fourth indication information. At this time, it can be considered that the first beam points to the position of the first reference point. The pointing of the first beam may be expressed as the first direction.

[0140] S703. The NCR sends the second data in the second direction with the second amplification gain.

[0141] Wherein, the second direction is determined according to the third indication information, and the first direction is different from the second direction.

[0142] The NCR may calculate its own positions at the second and third time resources based on its own position at the current moment or historical moment, so as to calculate the angle, amplification gain, etc. of the beam sent towards the first reference point, and send the beam towards the first reference point at the second and third time resources.

[0143] It should be noted that the above examples only take the amplification gain including the first amplification gain and the second amplification gain as an example. In some examples, the amplification gain may further include the amplification gain 3. For example, referring to Figure 6 , the NCR calculates the amplification gain 3, and sends the data 3 towards the first reference point using the third beam at the third position, and the amplification gain of the third beam is the amplification gain 3.

[0144] Through the method provided by the embodiments of the present application, the base station sends the first signal-to-noise ratio or the reference amplification gain to the NCR, so that the NCR calculates the amplification gain of the beam sent towards the first reference point by itself. Thus, the base station may not calculate the amplification gain of the beam sent by the NCR, reducing the calculation burden of the base station. In addition, the NCR will change its position during operation, and the self-operation of the NCR can make the determined amplification gain have higher accuracy. The NCR calculates the first amplification gain and the second amplification gain through the first signal-to-noise ratio or the reference amplification gain, reducing the number of times of the amplification gain sent by the base station and saving the air interface resources.

[0145] Optionally, referring to Figure 7 , in some other embodiments, Figure 5 the method shown also includes S705.

[0146] S705. The base station sends an enable flag to the NCR. Correspondingly, the NCR receives the enable flag from the base station.

[0147] The enable flag is used to enable the NCR to determine the amplification gain of the data sent towards the first reference point according to the first information.

[0148] Exemplarily, after receiving the enabling identifier, NCR may perform steps such as S502 and S503.

[0149] Again exemplarily, the enabling identifier may be used to enable NCR to execute the method provided in the embodiments of the present application, and the specific steps for enabling NCR to execute may refer to the descriptions of other steps in this article.

[0150] In this solution, by using the enabling identifier to instruct NCR to execute the method of the embodiments of the present application, NCR can determine the beams to be sent to the reference point at multiple moments (or when NCR is located at multiple positions) according to the beam information corresponding to a moment indicated by the base station (or when NCR is located at a position), thereby reducing the information sent by the base station and saving air interface resources.

[0151] The above embodiments are introduced by taking the base station instructing NCR to forward data to a reference point as an example. In some embodiments, the base station may instruct NCR to forward data to multiple reference points. Refer to Figure 8 , Figure 8 where each ellipse represents a reference point, Figure 8 and reference points 1 to 17 are shown in

[0152] Refer to Figure 9 , when the base station instructs NCR to forward data to multiple reference points, the above fourth indication information may indicate the first time resource information (such as SSB0 shown in Figure 9 ). In some embodiments, the fourth indication information may also indicate the second time resource information (such as SSB1 shown in Figure 9 ). Among them, the first time resource information is used to send the first data to the first reference point, and the second time resource information is used to send the third data to the second reference point.

[0153] The fourth indication information may also indicate more time resource information, such as the time resource information for NCR to send data to reference points 3 to 17, such as indicating the time domain resources of reference points 3 to 16 through SSB3 to SSB16 (not shown in the figure), and indicating the time domain resources of reference point 17 through SSB17 shown in Figure 9 etc.

[0154] In some embodiments, the fourth indication information may indicate a time resource for NCR to forward data to each reference point, and no longer indicate other time resources for forwarding data to the same reference point for the second time, the third time, etc.

[0155] The above embodiments illustrate the case where the base station instructs the NCR to periodically forward data of multiple reference points. Next, the amplification gain when the base station instructs the NCR to forward data of multiple reference points is introduced.

[0156] In some other embodiments, the first information is further used to determine the amplification gain of the data sent by the NCR to the second reference point. The amplification gain of the data sent by the NCR to the second reference point includes a third amplification gain and a fourth amplification gain, and the third amplification gain and the fourth amplification gain are different.

[0157] Optionally, the above communication method further includes S707 and S708.

[0158] S707: The NCR sends the third data to the second reference point using the third amplification gain.

[0159] S708: The NCR sends the fourth data to the second reference point using the fourth amplification gain.

[0160] Among them, the amplification gain of the first data is the same as that of the third data, and the amplification gain of the second data is the same as that of the fourth data. The second reference point may be Figure 8 the reference point 2 shown.

[0161] Exemplarily, Figure 8 among the reference points shown, the power required for the NCR to forward data to reference points 1 to 5 may be the same. The NCR may determine the amplification gain required for forwarding data to reference points 1 to 5 according to the first information.

[0162] In some embodiments, the above enable flag is further used to indicate enabling the determination of the amplification gain of the data sent to the second reference point according to the first information.

[0163] Optionally, in some embodiments, the above communication method further includes S709.

[0164] S709: The base station sends the third information to the NCR. Correspondingly, the NCR receives the third information from the base station.

[0165] Among them, the third information is used to determine the amplification gain of the data sent to the second reference point. The amplification gain of the data sent to the second reference point includes a third amplification gain and a fourth amplification gain, and the third amplification gain and the fourth amplification gain are different.

[0166] The third amplification gain and the fourth amplification gain are determined according to the third information, and the amplification gain of the data sent to the second reference point is different from that of the data sent to the first reference point.

[0167] Exemplarily, when the amplification gain of the second reference point is different from that of the first reference point, the base station may use different information to indicate the amplification gain of the second reference point. Refer to Figure 10 , Figure 10 illustrates the manner in which the base station indicates beam information corresponding to multiple reference points to the NCR. The base station indicates the cycle length, the enable flag, the first signal-to-noise ratio or the reference amplification gain corresponding to each reference point respectively, the position of each reference point or the initial beam direction of the beam pointing to each reference point, and the time resource of each reference point. Among them, the time resource may be the time resource when the NCR first sends a beam towards this reference point.

[0168] Exemplarily again, refer to Figure 11 , Figure 11 illustrates another manner in which the base station indicates beam information corresponding to multiple reference points to the NCR. The base station indicates the cycle length, the enable flag, more than two first signal-to-noise ratios or more than two reference amplification gains, the position of each reference point or the initial beam direction of the beam pointing to each reference point, the time resource of each reference point, and the amplification gain group corresponding to each reference point. Among them, the time resource may be the time resource when the NCR first sends a beam towards this reference point. The NCR may determine the first signal-to-noise ratio or the reference amplification gain corresponding to each reference point according to the corresponding relationship between the amplification gain group and the first signal-to-noise ratio or the reference amplification gain.

[0169] In some embodiments, the third indication information indicates the positions of multiple reference points or indicates the pointing directions of the beams transmitted towards multiple reference points. If the third indication information indicates the pointing directions of the beams transmitted towards multiple reference points, then for each reference point, the third indication information indicates the pointing direction of one beam, and the NCR may calculate the pointing directions of the beams transmitted towards each reference point after the change of its own position according to its own movement.

[0170] In some embodiments, the fourth indication information may also refer to the time resources used by the NCR to forward data to multiple reference points such as the second reference point and the third reference point, such as indicating that the NCR sends data to the second reference point at the second time resource.

[0171] Exemplarily, the NCR may also determine the fourth time resource used for the next time to forward data to the second reference point according to the second time resource and the cycle length. The time resources used for forwarding data to other reference points may be deduced by analogy and will not be elaborated here.

[0172] When the fourth indication information indicates multiple time resources, the multiple time resources may be the time resources used by the NCR to send data to the same reference point, or may be the time resources used by the NCR to send data to different reference points.

[0173] Exemplarily, referring to Figure 12 , the base station indicates a reference point location or an initial beam direction to the NCR. The multiple time resources may be multiple time resources for sending data to the reference point, or beam directions corresponding to the reference points obtained along the initial beam direction.

[0174] Again exemplarily, referring to Figure 10 、 Figure 13 , the base station indicates multiple reference point locations or multiple initial beam directions to the NCR. The multiple time resources may be multiple time resources for sending data to the multiple reference points, or beam directions corresponding to the reference points obtained along the multiple initial beam directions.

[0175] Optionally, referring to Figure 7 , in some embodiments, the method of the embodiments of the present application further includes S710.

[0176] S710: The base station sends second information to the NCR. Correspondingly, the NCR receives the second information from the base station.

[0177] The second information includes the identifier of the amplification gain group corresponding to the pointing direction of the first reference point or the first beam and the identifier of the amplification gain group corresponding to the second reference point.

[0178] Referring to the above description, the identifier of the amplification gain group corresponding to the first reference point and the identifier of the amplification gain group corresponding to the second reference point may be the same or different. When the identifier of the amplification gain group corresponding to the first reference point is the same as the identifier of the amplification gain group corresponding to the second reference point, the NCR can determine the amplification gain of the second reference point according to the first information.

[0179] Through this solution, the number of bits occupied by the identifier of the amplification gain group is small, and using the identifier of the amplification gain group to indicate the first signal-to-noise ratio or the reference amplification gain corresponding to each reference point incurs less overhead, which can save air interface resources.

[0180] In the above embodiments, by indicating the first signal-to-noise ratio or the reference amplification gain to the NCR, the NCR calculates the amplification gain of the beam sent to each reference point by itself, realizing power control in the beam gazing scenario and reducing the signaling overhead of the base station indicating the NCR. Considering that the NCR calculates the amplification gain of the beam sent to each reference point by itself, it may cause the amplification gain of the signal to exceed the power flux density (PFD) threshold constraint specified by the International Telecommunication Union. The embodiments of the present application also disclose the following solution.

[0181] In some embodiments, the base station may also send first indication information to the NCR. Correspondingly, the NCR receives the first indication information from the base station.

[0182] Among them, the first indication information is used to indicate the angle of the first beam. The first beam is used to transmit the first data, and the first amplification gain meets the requirements of the power density priority, and the requirements of the power density priority are determined according to the angle of the first beam.

[0183] In some embodiments, the angle of the first beam is the elevation angle of the first beam.

[0184] In some embodiments, the angle of the first beam is the azimuth angle of the first beam.

[0185] Exemplarily, determining the power density priority according to the angle of the first beam may refer to Table 1.

[0186] Table 1

[0187]

[0188] For example, the angle δ of the first beam and the threshold value of the amplification gain P satisfy the following relationship:

[0189] P 0°≤δ≤5°

[0190] P+r×(δ - 5) 5°<δ≤25°

[0191] P + 20r 25°<δ≤90°

[0192] The NCR determines whether it exceeds the threshold limit according to the amplification gain of the beam calculated in the above manner and the angle of the beam. For the beam whose amplification gain exceeds the PFD, the NCR adjusts the amplification gain of the beam according to the PFD threshold.

[0193] Exemplarily, taking the first beam in the frequency band 1518 - 1525 as an example. If the NCR determines that the elevation angle of the first beam is 90° according to the first information, and the PFD corresponding to its 1 MHz is P = -128 + 20×0.5 = -118 dB (watts per square meter), so its effective isotropic radiated power (EIRP) density is -118 + 10×log 10 (4πd 2) dBW / MHz. For the LEO-600 satellite system, at an elevation angle of 90 degrees, d = 600 km, so its EIRP density is 8.56 dBW / MHz. Since EIRP = satellite antenna gain + transmit power = satellite antenna gain + signal input power + amplification gain. Assuming the beam has a bandwidth of 240 MHz, then according to the EIRP density, its EIRP is such that the satellite antenna gain = 32.36 dBW; additionally, assuming the satellite antenna gain signal input power = -20 dBW and the satellite antenna gain = 32.36 dBi, the maximum amplification gain can be obtained as 20 dB.

[0194] If the NCR determines an amplification gain of 22 dB based on the first information, since 22 dB is greater than 20 dB, the NCR amplifies the power by 20 dB and transmits data to the UE; if the NCR determines an amplification gain of 18 dB based on the first information, since 18 dB is not greater than 20 dB, the NCR amplifies the power by 18 dB and transmits data to the UE.

[0195] In some embodiments, the base station may also send a second indication message to the NCR. Correspondingly, the NCR receives the second indication message from the base station, and the second indication message is used to enable power density priority. Exemplarily, the second indication message can be 1 bit, and this bit can be represented as IE pfdPriority. Exemplarily, the second indication message can be indicated by DCI, MAC CE, or RRC.

[0196] The above introduced the first indication message taking the first beam sent by the base station to the first reference point as an example. It can be understood that the first indication message can also indicate the angles of the beams sent to multiple reference points such as the second reference point and the third reference point, enabling the NCR to obtain the amplification gain requirements for sending the beam based on the angles of the beams, so that the NCR meets the amplification gain requirements when sending beams to each reference point.

[0197] Exemplarily, referring to Figure 14 , the base station can indicate the elevation angle corresponding to each reference point, enabling the NCR to calculate whether the amplification gain corresponding to each reference point exceeds the amplification gain threshold.

[0198] In some embodiments, one or more of the following information is carried by DCI: the first information, the second information, the third information, the enable flag, the time resource information, the cycle length, the first indication message, the second indication message, the third indication message, the fourth indication message, or the fifth indication message.

[0199] In some other embodiments, one or more of the following information is carried by RRC signaling: first information, second information, third information, enabling identifier, time resource information, cycle length, first indication information, second indication information, third indication information, fourth indication information, or fifth indication information.

[0200] It can be understood that the information carried by the above DCI can be sent in one or more DCIs. The information carried by the above RRC signaling can also be sent in one or more RRCs.

[0201] In some embodiments, if the base station indicates the beam information of multiple reference points through RRC signaling, the base station can activate or deactivate the beam information of all or part of the multiple reference points through MAC CE. The NCR can determine the amplification power of the beam of the activated reference point after receiving the activation of the MAC CE.

[0202] It can be understood that the base station can send DCI or RRC signaling to the NCR multiple times. For example, the base station sends a first DCI to the NCR, and the first DCI is used to determine the amplification gain for the NCR to send data from the first position to the third position to the first reference point. The base station sends a second DCI to the NCR, and the second DCI is used to determine the amplification gain for the NCR to send data from the fourth position and the fifth position to the first reference point. Refer to Figure 4 , the first DCI may include the first information, and the second DCI may include the fifth information.

[0203] The embodiments of the present application are introduced below through several specific examples.

[0204] Refer to Figure 12 , the base station sends the following information to the NCR through DCI: enabling identifier, reference point position or initial beam pointing, first signal-to-noise ratio or reference amplification gain, time resources such as time resource 1 and time resource 2, to indicate the NCR forwarding beam. Among them, the enabling identifier is used to enable the NCR to perform staring scheduling on the reference point (or on the wave position), and can be 1-bit information, denoted as earth-fixed_FLAG. The reference position cell can indicate the reference point position. After receiving the above information, the NCR can perform the following operations according to the enabling identifier:

[0205] Example 1

[0206] The cell carried in the DCI sent by the base station to the NCR indicates the reference point position and the first signal-to-noise ratio. When the NCR determines time resource 1 according to its own movement trajectory, the NCR is at position 1. According to the first signal-to-noise ratio and position 1, the amplification gain for sending a beam towards the reference point position at position 1 is determined to be amplification gain 1, and a beam with amplification gain 1 is sent towards the reference point position at time resource 1.

[0207] When the NCR determines the time resource 2, the NCR is located at position 2 according to its own movement trajectory. According to the first signal-to-noise ratio and position 2, the amplification gain for transmitting the beam towards the reference point position at position 2 is determined as amplification gain 2, and the beam with amplification gain 2 is transmitted towards the reference point position at time resource 2. The NCR obtains the amplification gain in the subsequent time resources by referring to the method of time resource 2 and transmits the beam towards the reference point.

[0208] Example 2

[0209] The cell carried in the DCI sent by the base station to the NCR indicates the initial beam direction and the first signal-to-noise ratio. The NCR determines that the amplification gain of the beam transmitted along the initial beam direction is amplification gain 1 according to the first signal-to-noise ratio, and uses time resource 1 to transmit the beam with amplification gain 1 along the initial beam direction.

[0210] The NCR determines its position at time resource 2 according to its own movement trajectory, and determines the beam direction at time resource 2 according to the position of the NCR at time resource 2 and the initial beam direction. According to the first signal-to-noise ratio or amplification gain, the amplification gain for transmitting the beam along the beam direction at time resource 2 at position 2 is determined as amplification gain 2, and the beam with amplification gain 2 is transmitted along the beam direction at time resource 2 at time resource 2. The NCR obtains the amplification gain in the subsequent time resources by referring to the method of time resource 2 and transmits the beam towards the reference point.

[0211] Example 3

[0212] The cell carried in the DCI sent by the base station to the NCR indicates the reference point position and the reference amplification gain. The NCR transmits the beam with the amplification gain of the reference amplification gain towards the reference point position at time resource 1.

[0213] The NCR determines that the NCR is located at position 2 at time resource 2 according to its own movement trajectory, and obtains the amplification gain 2 of the beam at position 2 according to the reference amplification gain. At time resource 2, the beam with the amplification gain of amplification gain 2 is transmitted towards the reference point position.

[0214] Example 4

[0215] The cell carried in the DCI sent by the base station to the NCR indicates the initial beam direction and the reference amplification gain. The NCR transmits the beam with the amplification gain of the reference amplification gain along the initial beam direction at time resource 1.

[0216] When the NCR determines the time resource 2 according to its own movement trajectory, the NCR is located at position 2, and determines the beam direction at time resource 2 according to the position of the NCR and the initial beam direction at time resource 2, and obtains the amplification gain 2 of the beam at position 2 according to the reference amplification gain. The NCR transmits a beam with an amplification gain of amplification gain 2 along the beam direction at time resource 2 at time resource 2.

[0217] In some examples, referring to Figure 13 , the base station sends the following information to the NCR through RRC signaling: cycle length, enable flag, multiple reference point positions (such as reference point position 1, reference point position 2, etc.) or multiple initial beam directions, first signal-to-noise ratio or reference amplification gain, multiple time resources (such as time resource 1, time resource 2, etc.). Among them, each reference point position corresponds to a time resource (such as reference point position 1 corresponding to time resource 1, reference point position 2 corresponding to time resource 2), or each initial beam direction corresponds to a time resource (such as initial beam direction 1 corresponding to time resource 1, initial beam direction 2 corresponding to time resource 2). The enable flag is used to enable the NCR to perform staring scheduling on the reference point (or on the wave position), and can be 1-bit information, denoted as earth-fixed_FLAG. The reference position cell can indicate the reference point position.

[0218] The base station can indicate to the NCR to send beams to multiple reference points or along multiple initial beam directions through the above information. The gain of the beam sent towards each reference point or along each initial beam direction can be obtained through the first signal-to-noise ratio or the reference amplification gain, and the beam is sent towards the reference point or along the initial beam direction at the time resource corresponding to each reference point or each initial beam direction. The NCR can obtain the next time resource for sending the beam towards the reference point position or along the initial beam direction by adding the cycle length to the time resource corresponding to each reference point position or each initial beam direction. Referring to Examples 1 to 4 above, the NCR can send beams towards the reference point during operation when the received information indicates the reference point position and the first signal-to-noise ratio, the initial beam direction and the first signal-to-noise ratio, the reference point position and the reference amplification gain, or the initial beam direction and the reference amplification gain.

[0219] In some examples, referring to Figure 10, the base station sends the following information to the NCR through RRC signaling: cycle length, enable flag, multiple reference point positions (such as reference point position 1, reference point position 2, reference point position 3, etc.), multiple first signal-to-noise ratios or reference amplification gains (such as first signal-to-noise ratio 1 or reference amplification gain 1, first signal-to-noise ratio 2 or reference amplification gain 2, first signal-to-noise ratio 3 or reference amplification gain 3, etc.), multiple time resources (such as time resource 1, time resource 2, time resource 3, etc.). Among them, each reference point position corresponds to a time resource, and each reference point position corresponds to a first signal-to-noise ratio or a reference amplification gain. The enable flag is used to enable the NCR to perform staring scheduling on the reference point (or on the wave position), which can be 1-bit information, denoted as earth-fixed_FLAG. The reference position cell can indicate the reference point position.

[0220] Alternatively, the base station sends the following information to the NCR through RRC signaling: cycle length, enable flag, multiple initial beam directions (such as initial beam direction 1, initial beam direction 2, initial beam direction 3, etc.), multiple first signal-to-noise ratios or reference amplification gains (such as first signal-to-noise ratio 1 or reference amplification gain 1, first signal-to-noise ratio 2 or reference amplification gain 2, first signal-to-noise ratio 3 or reference amplification gain 3, etc.), multiple time resources (such as time resource 1, time resource 2, time resource 3, etc.). Among them, each initial beam direction corresponds to a time resource, and each initial beam direction corresponds to a first signal-to-noise ratio or a reference amplification gain.

[0221] The NCR can send a beam to the reference point position according to the time resource, first signal-to-noise ratio or reference amplification gain corresponding to each reference point position. Or send a beam to the reference point position according to the time resource, first signal-to-noise ratio or reference amplification gain corresponding to each initial beam direction. The first signal-to-noise ratio or reference amplification gain corresponding to each reference point position (or each initial beam direction) is different, and the base station can respectively indicate the first signal-to-noise ratio or reference amplification gain corresponding to each reference point position (or each initial beam direction).

[0222] In some examples, refer to Figure 11, the base station sends the following information to the NCR through RRC signaling: cycle length, enable flag, multiple first signal-to-noise ratios or reference amplification gains (such as first signal-to-noise ratio 1 or reference amplification gain 1, first signal-to-noise ratio 2 or reference amplification gain 2, first signal-to-noise ratio 3 or reference amplification gain 3, etc.), multiple reference point positions (such as reference point position 1, reference point position 2, reference point position 3, etc.), multiple time resources (such as time resource 1, time resource 2, time resource 3, etc.), and multiple amplification gain group identifiers (such as amplification gain group 1, amplification gain group 2, etc.). Among them, each reference point position corresponds to a time resource, each reference point position corresponds to an amplification gain group identifier, and each amplification gain group identifier corresponds to a first signal-to-noise ratio or a reference amplification gain (such as amplification gain group 1 corresponds to first signal-to-noise ratio 1 or reference amplification gain 1, and amplification gain group 2 corresponds to first signal-to-noise ratio 2 or reference amplification gain 2). The enable flag is used to enable the NCR to perform staring scheduling on the reference point (or on the wave position), and can be 1-bit information, denoted as earth-fixed_FLAG. The reference position cell can indicate the reference point position.

[0223] The NCR can send a beam to the reference point position according to the time resource, the first signal-to-noise ratio or the reference amplification gain corresponding to each reference point position. Or send a beam to the reference point position according to the time resource, the first signal-to-noise ratio or the reference amplification gain corresponding to each initial beam pointing. The first signal-to-noise ratios or reference amplification gains corresponding to multiple reference point positions (or initial beam pointings) are the same. By indicating the grouping of each reference point position (or initial beam pointing) and indicating the first signal-to-noise ratio or the reference amplification gain corresponding to each group, the consumption of air interface resources can be reduced.

[0224] In various embodiments of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be mutually referred to. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. For example, the above-mentioned multiple embodiments can be combined and the combined solution can be implemented. Optionally, some operations in the processes of the method embodiments are optionally combined, and / or the order of some operations is optionally changed. And, the execution order between the steps of each process is only exemplary and does not constitute a limitation on the execution order between the steps. The steps can also be in other execution orders. It is not intended to indicate that the execution order is the only order in which these operations can be performed. Those of ordinary skill in the art will think of various ways to reorder the operations herein. Additionally, it should be noted that the process details involved in a certain embodiment herein are equally applicable to other embodiments in a similar manner, or different embodiments can be combined and used.

[0225] It can be understood that, in order to implement the functions in the above embodiments, the base station and the terminal include the corresponding hardware structures and / or software modules for executing various functions. Those skilled in the art should easily realize that, in combination with the units and method steps of each example described in the embodiments disclosed in the present application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the manner of hardware or computer software driving the hardware depends on the specific application scenarios and design constraints of the technical solution.

[0226] Figure 15 and Figure 16 FIG. is a schematic structural diagram of a possible communication device provided by an embodiment of the present application. These communication devices can be used to implement the functions of the NCR or the base station in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments. In the embodiments of the present application, the communication device can be, for example, Figure 1 the wireless relay device shown in Figure 1 FIG., or can be, for example, Figure 1 the RAN node shown in

[0227] such as Figure 15 FIG. shows that the communication device 1300 includes a processing unit 1310 and a transceiver unit 1320. The communication device 1300 is used to implement the functions of the wireless relay device or the RAN node in the method embodiments shown in any one of the above Figure 5 or Figure 7 FIGs.

[0228] When the communication device 1300 is used to implement the function of the NCR in the method embodiment shown in Figure 5 FIG.: The transceiver unit 1320 is used to receive the first information, send the first data to the first reference point with the first amplification gain, and send the second data to the first reference point with the second amplification gain; the processing unit 1310 is used to execute the functions related to processing.

[0229] When the communication device 1300 is used to implement the function of the base station in the method embodiment shown in Figure 5 FIG.: The transceiver unit 1320 is used to send the first information; the processing unit 1310 is used to execute the functions related to processing.

[0230] When the communication device 1300 is used to implement the function of the NCR in the method embodiment shown in Figure 7 FIG.: The transceiver unit 1320 is further used to receive the enable flag, the third indication information, the fourth indication information, the fifth indication information, the second information or the third information, and send the third data to the second reference point with the third amplification gain and send the fourth data to the second reference point with the fourth amplification gain; the processing unit 1310 is used to execute the functions related to processing.

[0231] When the communication device 1300 is used to implement Figure 7 the functions of the base station in the method embodiments shown: the transceiver unit 1320 is further configured to send an enabling identifier, third indication information, fourth indication information, fifth indication information, second information, or third information; the processing unit 1310 is configured to perform functions related to processing.

[0232] For a more detailed description of the above processing unit 1310 and transceiver unit 1320, reference can be made to Figure 5 or Figure 7 the relevant descriptions in the method embodiments shown.

[0233] As Figure 16 shown, the communication device 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It can be understood that the interface circuit 1420 can be a transceiver or an input / output interface. Optionally, the communication device 1400 may further include a memory 1430, configured to store instructions executed by the processor 1410 or store input data required for the processor 1410 to run instructions or store data generated after the processor 1410 runs instructions.

[0234] When the communication device 1400 is used to implement Figure 5 or Figure 7 the method shown, the processor 1410 is configured to implement the functions of the above processing unit 1310, and the interface circuit 1420 is configured to implement the functions of the above transceiver unit 1320.

[0235] When the above communication device is a chip applied to an NCR, the terminal chip implements the functions of the NCR in the above method embodiments. The NCR chip receives information from the base station. It can be understood that this information is first received by other modules (such as a radio frequency module or an antenna) in the NCR, and then sent by these modules to the NCR chip. The NCT chip sends information to the base station. It can be understood that this information is first sent to other modules (such as a radio frequency module or an antenna) in the NCR, and then sent by these modules to the base station.

[0236] When the above 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.

[0237] In this application, when entity A sends information to entity B, it can be directly sent from A to B, or A can send it indirectly to B via other entities. Similarly, when entity B receives information from entity A, entity B can directly receive the information sent by entity A, or entity B can indirectly receive the information sent by entity A through other entities. Here, entity A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. The sending and receiving of information can be the information interaction between a RAN node and a terminal. For example, the information interaction between a base station and a terminal; the sending and receiving of information can also be the information interaction between two RAN nodes. For example, the information interaction between a CU and a DU; the sending and receiving of information can also be the information interaction between different modules within a device. For example, the information interaction between a terminal chip and other modules of the terminal, or the information interaction between a base station chip and other modules in the base station.

[0238] It can be understood that the processor in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0239] 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 be composed of corresponding software modules, and the software modules can be stored in a 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, removable hard disks, CD-ROMs, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the 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 be located in an ASIC. Additionally, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also exist as discrete components in a base station or a terminal.

[0240] Optionally, the present application also provides a computer program product. All or part of the processes in the above method embodiments can be completed by a computer program instructing relevant hardware. The program can be stored in the above computer program product. When the program is executed, it can include the processes of the above method embodiments.

[0241] Optionally, the present application also provides a computer instruction. All or part of the processes in the above method embodiments can be completed by a computer instruction instructing relevant hardware (such as a computer, a processor, a wireless relay device, a terminal, or a RAN node, etc.). The program can be stored in the above computer-readable storage medium or the above computer program product.

[0242] Optionally, the present application also provides a communication system, including: the RAN node and the terminal in the above embodiments.

[0243] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are executed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable devices. The computer program or instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it can also be an optical medium, such as a digital video disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile types of storage media.

Claims

1. A communication method, characterized in that, Including: Receiving first information for determining an amplification gain of data transmitted to a first reference point, the amplification gain of the data transmitted to the first reference point including a first amplification gain and a second amplification gain, the first amplification gain and the second amplification gain being different; Transmitting first data to the first reference point using the first amplification gain; Transmitting second data to the first reference point using the second amplification gain.

2. The method according to claim 1, characterized in that, The first information indicates a first signal-to-noise ratio or a reference amplification gain, the first signal-to-noise ratio being the signal-to-noise ratio of transmitting the first data to the first reference point, or the first signal-to-noise ratio being the signal-to-noise ratio of transmitting the first data in a pointing direction of a first beam; the reference amplification gain being the reference amplification gain of transmitting the first data to the first reference point, or the reference amplification gain being the reference amplification gain of transmitting the first data in the pointing direction of the first beam.

3. The method according to claim 2, wherein One piece of the first information indicates one first signal-to-noise ratio; or one piece of the first information indicates one reference amplification gain.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: Receiving an enabling identifier for enabling determination of an amplification gain of data transmitted to the first reference point according to the first information.

5. The method according to any one of claims 1-4, characterized in that, The first information is further used to determine an amplification gain of data transmitted to a second reference point, the amplification gain of the data transmitted to the second reference point including a third amplification gain and a fourth amplification gain, the third amplification gain and the fourth amplification gain being different; The method further includes: transmitting third data to the second reference point using the third amplification gain; Transmitting fourth data to the second reference point using the fourth amplification gain, the first amplification gain being the same as the third amplification gain, and the second amplification gain being the same as the fourth amplification gain.

6. The method according to any one of claims 1-4, characterized in that, The method further includes: Receiving third information for determining an amplification gain of data transmitted to the second reference point, the amplification gain of the data transmitted to the second reference point including a third amplification gain and a fourth amplification gain, the third amplification gain and the fourth amplification gain being different; Transmitting third data to the second reference point using the third amplification gain; Transmitting fourth data to the second reference point using the fourth amplification gain, the amplification gain of the data transmitted to the second reference point being different from the amplification gain of the data transmitted to the first reference point.

7. The method according to claim 5 or 6, characterized in that, The method further includes: Receiving second information including an identifier of an amplification gain group corresponding to the first reference point and an identifier of an amplification gain group corresponding to the second reference point.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: Receiving first time resource information and a cycle length, the first time resource information being used to transmit first data to the first reference point, the cycle length being a time duration between transmitting the first data to the first reference point and transmitting the second data to the first reference point; The first time resource information is further used to determine a third time resource for transmitting the second data.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: Receive first indication information, where the first indication information is used to indicate the angle of a first beam, the first beam is used to transmit first data, and the first amplification gain meets the requirements of the power density priority, and the requirements of the power density priority are determined according to the angle of the first beam.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: Receive third indication information, where the third indication information indicates the position of the first reference point.

11. The method according to any one of claims 1-9, characterized in that, The method further includes: Receive third indication information, where the third indication information indicates the pointing direction of the first beam; The step of transmitting first data to the first reference point using the first amplification gain includes: transmitting first data to the first reference point in a first direction using the first amplification gain, where the first direction is determined according to the third indication information; The step of transmitting second data to the first reference point using the second amplification gain includes: transmitting second data to the first reference point in a second direction using the second amplification gain, where the second direction is determined according to the third indication information; the first direction is different from the second direction.

12. The method according to any one of claims 1-11, characterized in that, The first information is carried by downlink control information DCI, or the first information is carried by radio resource control RRC signaling.

13. A communication method, characterized in that, Includes: Determine first information, where the first information is used to determine the amplification gain of data transmitted by a wireless relay device to a first reference point, and the amplification gain of the data transmitted to the first reference point includes a first amplification gain and a second amplification gain, and the first amplification gain is different from the second amplification gain; Transmit the first information.

14. The method according to claim 13, characterized in that The first information indicates a first signal-to-noise ratio or a reference amplification gain. The first signal-to-noise ratio is the signal-to-noise ratio of the wireless relay device transmitting first data to the first reference point, or the first signal-to-noise ratio is the signal-to-noise ratio of the wireless relay device transmitting first data to the pointing direction of the first beam; the reference amplification gain is the reference amplification gain for transmitting first data to the first reference point, or the reference amplification gain is the reference amplification gain for transmitting first data to the pointing direction of the first beam.

15. The method according to claim 14, wherein One piece of the first information indicates one first signal-to-noise ratio; or, one piece of the first information indicates one reference amplification gain.

16. The method according to any one of claims 13 - 15, characterized in that, The method further includes: Transmit an enable flag, where the enable flag is used to enable the wireless relay device to determine the amplification gain of data transmitted to the first reference point according to the first information.

17. The method according to any one of claims 13-16, characterized in that, The first information is further used to determine the amplification gain of data transmitted by the wireless relay device to a second reference point, and the amplification gain of the data transmitted to the second reference point includes a third amplification gain and a fourth amplification gain, and the third amplification gain is different from the fourth amplification gain The first amplification gain is the same as the third amplification gain, and the second amplification gain is the same as the fourth amplification gain.

18. The method according to any one of claims 13-16, characterized in that, The method further includes: Transmit third information, where the third information is used to determine the amplification gain of the data transmitted by the wireless relay device to the second reference point. The amplification gain of the data transmitted to the second reference point includes a third amplification gain and a fourth amplification gain, and the third amplification gain and the fourth amplification gain are different. The amplification gain of the data transmitted to the second reference point is different from the amplification gain of the data transmitted to the first reference point.

19. The method according to claim 17 or 18, characterized in that, The method further includes: Transmit second information, where the second information includes an identifier of the amplification gain group corresponding to the first reference point and an identifier of the amplification gain group corresponding to the second reference point.

20. The method according to any one of claims 13-19, characterized in that, The method further includes: Transmit first time resource information and a cycle length. The first time resource information is used for the wireless relay device to transmit first data to the first reference point, and the cycle length is the time duration between the wireless relay device transmitting first data to the first reference point and transmitting second data to the first reference point. The first time resource information is further used to determine a third time resource, and the third time resource is used for the wireless relay device to transmit the second data.

21. The method according to any one of claims 13-20, characterized in that, The method further includes: Transmit first indication information, where the first indication information is used to indicate the angle of a first beam, and the first beam is used for the wireless relay device to transmit first data.

22. The method according to any one of claims 13-21, characterized in that, The method further includes: Transmit third indication information, where the third indication information indicates the position of the first reference point or the pointing direction of the first beam.

23. The method according to any one of claims 13 - 21, characterized in that, The method further includes: Transmit third indication information, where the third indication information indicates the pointing direction of the first beam.

24. The method according to any one of claims 13 - 22, characterized in that, The first information is carried by downlink control information DCI, or the first information is carried by radio resource control RRC signaling.

25. A communication system, characterized in that, Comprising a first device and a second device, where the first device is wirelessly connected to the second device, and the first device executes the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 24.

26. A communication device, characterized in that, Comprising a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the computer instructions execute the method according to any one of claims 1 to 12, or the computer instructions execute the method according to any one of claims 13 to 24.

27. A communication device, characterized in that, Comprising a unit or module for executing the method according to any one of claims 1 to 12, or comprising a unit or module for executing the method according to any one of claims 13 to 24.

28. A computer-readable storage medium storing instructions therein, characterized in that, When the instructions run on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 12, or the communication device is caused to execute the method according to any one of claims 13 to 24.

29. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method according to any one of claims 1 to 12, or implements the method according to any one of claims 13 to 24.

Images