Communication method and apparatus

Abstract

The present application relates to the technical field of communications, and provides a communication method and apparatus, which can save air interface resources. In the method, a wireless relay device can receive first information from a network device, use a first amplification gain to send first data to a first reference point, and use a second amplification gain to send second data to the first reference point. The first amplification gain and the second amplification gain are determined on the basis of the first information, and the first amplification gain and the second amplification gain are different. The wireless relay device determines, by means of the first information, the amplification gains for sending the first data and the second data. The network device does not need to send information twice to respectively indicate the two gains, thereby saving air interface resources.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 27, 2024, with application number 202410120625.5 and application name “Communication Method and Device,” the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0003] A network-controlled repeater (NCR) forwards data in a communication system. For example, a base station indicates a beam index and a time resource to the NCR. The NCR then forwards data from the base station to the terminal using the beam indicated by the beam index and the time resource. Currently, the NCR's data forwarding configuration requires further refinement. Summary of the Invention

[0004] The present application provides a communication method and apparatus that can reduce air interface resource overhead.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] In a first aspect, a communication method is provided. The method can be performed by a wireless relay device; alternatively, the method can be performed by a module implemented in the wireless relay device, such as a chip, a chip system, or a circuit; alternatively, the method can be implemented by a logic module or software that implements all or part of the functions of the wireless relay device, without limitation. For ease of description, the following description uses execution by a wireless relay device as an example.

[0007] The method includes: receiving first information, the first information is used to determine the amplification gain of 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; using the first amplification gain to send the first data to the first reference point; using the second amplification gain to send the second data to the first reference point.

[0008] Through this solution, the wireless relay device determines the first amplification gain of the first data to be sent and the second amplification gain of the second data to be sent according to the first information. The network device does not need to send information twice to indicate the two gains respectively, thereby saving air interface resources.

[0009] In combination with the first aspect, in one possible design, the first information indicates a first signal-to-noise ratio or a reference amplification gain, where the first signal-to-noise ratio is a signal-to-noise ratio for sending the first data to a first reference point, or the first signal-to-noise ratio is a signal-to-noise ratio for sending the first data in the direction of the first beam; and the reference amplification gain is a reference amplification gain for sending the first data to the first reference point, or the reference amplification gain is a reference amplification gain for sending the first data in the direction of the first beam.

[0010] 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.

[0011] In combination with the first aspect, in a possible design, a first information indicates a first signal-to-noise ratio; or, a first information indicates a reference amplification gain.

[0012] In combination with the first aspect, in a possible design, the method also includes: receiving an enable flag, where the enable flag is used to enable determination of an amplification gain of data sent to the first reference point based on the first information.

[0013] Through this solution, the wireless relay device can determine the amplification gain of the data sent to the first reference point according to the enable flag and the first information when enabled.

[0014] In combination with the first aspect, in one possible design, the first information is also used to determine the amplification gain of the data sent to the second reference point, and 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 also includes: using the third amplification gain to send third data to the second reference point; using the fourth amplification gain to send fourth data to the second reference point, 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.

[0015] Through this solution, the first information can determine the amplification gain of data sent to multiple reference points, thereby saving air interface resources.

[0016] In combination with the first aspect, in a possible design, the enable flag is further used to indicate that an amplification gain of data sent to the second reference point is enabled to be determined based on the first information.

[0017] In combination with the first aspect, in a possible design, the method also includes: receiving third information, 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; using the third amplification gain to send the third data to the second reference point; using the fourth amplification gain to send the fourth data to the second reference point, 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.

[0018] With this solution, the first information indicates the amplification gain of data sent to the first reference point, and the third information indicates the amplification gain of data sent to the second reference point. This allows the amplification gain of data sent to each reference point to be indicated, improving the accuracy of the amplification gain of data sent to each reference point.

[0019] In combination with the first aspect, in a possible design, the method further includes: receiving second information, the second information including 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.

[0020] 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.

[0021] In combination with the first aspect, in a possible design, the method also includes: receiving first time resource information and a cycle length, the first time resource information is used to send first data to the first reference point, and the cycle length is the duration between sending the first data to the first reference point and sending the second data to the first reference point; the first time resource information is also used to determine a third time resource, and the third time resource is used to send the second data.

[0022] 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.

[0023] In combination with the first aspect, in a possible design, the method also includes: receiving first indication information, the first indication information is used to indicate the angle of the first beam, the first beam is used to send first data, the first amplification gain meets the power density priority requirement, and the power density priority requirement is determined based on the angle of the first beam.

[0024] Through this solution, the wireless relay device can determine whether the first amplification gain meets the power density priority requirement according to the first indication information, so that the first amplification gain meets the power density priority requirement.

[0025] In combination with the first aspect, in a possible design, the angle of the first beam is the elevation angle of the first beam.

[0026] In combination with the first aspect, in one possible design, the method also includes: receiving second indication information, where the second indication information is used to enable power density priority.

[0027] Through this solution, the wireless relay device can, when enabled, determine whether the first amplification gain meets the power density priority requirement.

[0028] In combination with the first aspect, in a possible design, the method also includes: receiving third indication information, where the third indication information indicates the position of the first reference point.

[0029] In combination with the first aspect, in a possible design, the method also includes: receiving third indication information, the third indication information indicating the pointing direction of the first beam; using the first amplification gain to send the first data to the first reference point includes: using the first amplification gain to send the first data to the first reference point in the first direction, and the first direction is determined according to the third indication information; using the second amplification gain to send the second data to the first reference point includes: using the second amplification gain to send the second data to the first reference point in the second direction, and the second direction is determined according to the third indication information; the first direction is different from the second direction.

[0030] Through the above solution, the wireless relay device can transmit a beam to the reference point based on the location of the reference point or the direction of the beam. In addition, after the wireless relay device changes its position, it can determine the new direction of the beam based on its own operation and the location of the reference point or the direction of the beam, thereby transmitting the beam.

[0031] 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.

[0032] In combination with the first aspect, in one possible design, one or more of the following information is carried through 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.

[0033] In combination with the first aspect, in one possible design, one or more of the following information is carried through wireless 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.

[0034] In combination with the first aspect, in one possible design, the method also includes: receiving an activation or deactivation message of a MAC CE.

[0035] A second aspect provides a communication method. This method can be executed by a network device; alternatively, it can be executed by a module implemented in the network device, such as a chip, a chip system, or a circuit; alternatively, it can be implemented by a logic module or software that implements all or part of the network device's functions, without limitation. For ease of description, the following description uses execution by a network device as an example.

[0036] The method includes: determining first information, the first information is used to determine the amplification gain of data sent by the wireless relay device 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; sending the first information.

[0037] In combination with the second aspect, in one possible design, the first information indicates a first signal-to-noise ratio or a reference amplification gain, where the first signal-to-noise ratio is a signal-to-noise ratio of the wireless relay device sending the first data to the first reference point, or the first signal-to-noise ratio is a signal-to-noise ratio of the wireless relay device sending the first data in the direction of the first beam; the reference amplification gain is a reference amplification gain for sending the first data to the first reference point, or the reference amplification gain is a reference amplification gain for sending the first data in the direction of the first beam.

[0038] In combination with the second aspect, in a possible design, a first information indicates a first signal-to-noise ratio; a first information indicates a reference amplification gain.

[0039] In combination with the second aspect, in a possible design, the method further includes: sending an enable flag, where the enable flag is used to enable the wireless relay device to determine an amplification gain of data sent to the first reference point based on the first information.

[0040] In combination with the second aspect, in one possible design, the first information is also 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. 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.

[0041] In combination with the second aspect, in a possible design, the method also includes: sending third information, 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.

[0042] In combination with the second aspect, in a possible design, the method also includes: sending second information, the second information including 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.

[0043] In combination with the second aspect, in a possible design, the method also includes: sending first time resource information and a cycle length, the first time resource information is used for the wireless relay device to send the first data to the first reference point, and the cycle length is the duration between the wireless relay device sending the first data to the first reference point and sending the second data to the first reference point; the first time resource information is also used to determine a third time resource, and the third time resource is used for the wireless relay device to send the second data.

[0044] In combination with the second aspect, in a possible design, the method also includes: sending first indication information, 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.

[0045] In combination with the second aspect, in a possible design, the method also 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.

[0046] In combination with the second aspect, in a possible design, the method also includes: sending third indication information, where the third indication information indicates the pointing direction of the first beam.

[0047] In combination with the second aspect, in one possible design, one or more of the following information is carried through 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.

[0048] In combination with the second aspect, in one possible design, one or more of the following information is carried through wireless 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.

[0049] In combination with the second aspect, in one possible design, the method also includes: sending an activation or deactivation message of the MAC CE.

[0050] In a third aspect, a communication system is provided, comprising a first device and a second device, wherein 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 implementations, and the second device executes the method described in the second aspect and any one of its implementations.

[0051] In a fourth aspect, a communication device is provided, 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 described in the first aspect and any one of its implementations, or the computer instructions execute the method described in the second aspect and any one of its implementations.

[0052] In a fifth aspect, a chip system is provided, comprising: a processor and an interface circuit; the processor and the interface circuit are interconnected through a line; the interface circuit is used to read instructions stored in a 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 implementations, or executes the method described in the second aspect and any one of its implementations.

[0053] In a sixth aspect, a chip system is provided, comprising a processor configured to support a communication device in implementing the functions described in the first aspect and any one of its implementations, or in implementing the functions described in the second aspect and any one of its implementations. In one possible design, the chip system further comprises a memory configured to store program instructions and data necessary for the communication device. The chip system may consist of a chip alone, or may include a chip and other discrete components.

[0054] In a seventh aspect, a communication device is provided, wherein the communication device has the functionality to implement the method described in the first aspect and any one of its implementations, or has the functionality to implement the method described in the second aspect and any one of its implementations. The functionality may be implemented via hardware or via hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the aforementioned functionality.

[0055] In an eighth aspect, a communication device is provided, comprising: a processor; the processor is used to couple with a memory, and after reading instructions in the memory, execute the method as described in the first aspect and any one of its implementations according to the instructions, or execute the method as described in the second aspect and any one of its implementations according to the instructions.

[0056] In the ninth aspect, a computer-readable storage medium is provided, in which instructions are stored. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect and any one of its implementations, or the communication device executes the method described in the second aspect and any one of its implementations.

[0057] In a tenth aspect, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the method described in the first aspect and any one of its implementations, or implements the method described in the second aspect and any one of its implementations.

[0058] 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 second to tenth aspects above can refer to the beneficial effects in the first aspect and any possible implementation method provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] FIG1 is a schematic diagram of the architecture of a communication system used in an embodiment of the present application;

[0060] FIG2 is a diagram illustrating the architecture of the NCR according to an embodiment of the present application;

[0061] FIG3 is a schematic diagram of a base station indicating beam information to an NCR in the related art;

[0062] FIG4 is a schematic diagram of a base station indicating beam information to an NCR according to an embodiment of the present application;

[0063] FIG5 is a schematic diagram of a method flow chart of an embodiment of the present application;

[0064] FIG6 is a schematic diagram of an NCR transmission beam according to an embodiment of the present application;

[0065] FIG7 is a schematic diagram of another method flow chart of an embodiment of the present application;

[0066] FIG8 is a schematic diagram of reference points according to an embodiment of the present application;

[0067] FIG9 is a schematic diagram of the cycle length according to an embodiment of the present application;

[0068] FIG10 is a schematic diagram of beam information corresponding to multiple reference points indicated by a base station to an NCR according to an embodiment of the present application;

[0069] FIG11 is another schematic diagram of beam information corresponding to multiple reference points indicated by the base station to the NCR according to an embodiment of the present application;

[0070] FIG12 is a schematic diagram of beam information corresponding to a reference point indicated by a base station to an NCR according to an embodiment of the present application;

[0071] FIG13 is another schematic diagram of beam information corresponding to multiple reference points indicated by the base station to the NCR according to an embodiment of the present application;

[0072] FIG14 is a schematic diagram showing that a base station according to an embodiment of the present application can indicate an elevation angle corresponding to a reference point;

[0073] FIG15 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0074] FIG16 is a schematic diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0076] In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0077] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0078] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0079] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0080] It can be understood that in this application, "when" and "if" both mean that corresponding processing will be taken under certain objective circumstances, and do not limit the time, nor do they require any judgment action when implementing, nor do they mean that there are other limitations.

[0081] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. They may also be combined with other features in certain scenarios as needed. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0082] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments in this application, and the various implementation methods / implementation methods / implementation methods in each embodiment, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment are consistent and can be referenced to each other. The technical features in different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment can be combined to form new embodiments, implementation methods, implementation methods, or implementation methods according to their inherent logical relationships. The implementation methods of this application described below do not constitute a limitation on the scope of protection of this application.

[0083] Figure 1 is a schematic diagram of the architecture of a communication system used in an embodiment of the present application. As shown in Figure 1, the communication system includes a radio access network (RAN) 100. Optionally, the communication system may also include a core network 200 and the Internet 300. RAN 100 includes at least one RAN node (such as RAN node 110 in Figure 1) and at least one wireless relay device (such as wireless relay device 130a-wireless relay device 130b in Figure 1, collectively referred to as wireless relay device 130). The wireless relay device may be an NCR, and the following description will take NCR as an example. RAN 100 may also include at least one terminal (such as terminal 120a-terminal 120b in Figure 1, collectively referred to as terminal 120). Terminal 120 is connected to NCR 130 wirelessly, NCR is connected to RAN node 110 wirelessly, and RAN node 110 is connected to core network 200 wirelessly or wiredly. The core network equipment in core network 200 and the RAN node 110 in RAN 100 can be independent and distinct physical devices, or they can be a single physical device that integrates the logical functions of the core network equipment and the logical functions of the RAN node. Terminals, NCRs, and RAN nodes can be connected to each other via wired or wireless means.

[0084] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system defined in the 3rd Generation Partnership Project (3GPP), or a WiFi system. RAN100 can also include two or more of the aforementioned different radio access systems. RAN100 can also be an open RAN (O-RAN).

[0085] A RAN node, also known as a radio access network device, RAN entity, or access node, facilitates wireless access to a communication system by a terminal. In one application scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a future mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node.

[0086] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing portions of the base station's functions. For example, a RAN node can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU implements the base station's radio resource control protocol and packet data convergence protocol (PDCP) functions, as well as the service data adaptation protocol (SDAP) functions. The DU implements the base station's radio link control layer and medium access control (MAC) layer functions, as well as some or all of the physical layer functions. For detailed descriptions of each of the above protocol layers, please refer to the relevant 3GPP technical specifications. The RU can be used to implement the transmission and reception of radio frequency signals. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as in a baseband unit (BBU). The RU can be included in radio frequency equipment, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0087] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU may be called an open CU (O-CU), a DU may be called an open DU (O-DU), and a RU may be called an open RU (O-RU). The RAN node in the embodiments of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node may be a server loaded with the corresponding software module. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For ease of description, the following description takes a base station as an example of a RAN node.

[0088] 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 may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0089] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons and artificial satellites. The embodiments of the present application do not limit the application scenarios of base stations and terminals. Base stations, NCRs and terminals can all be collectively referred to as communication devices. The RAN node 110 in Figure 1 can be referred to as a communication device with base station functions, the terminal 120a and the terminal 120b in Figure 1 can be referred to as a communication device with terminal functions, and the wireless relay device 130a and the wireless relay device 130b in Figure 1 can be referred to as a communication device with NCR functions.

[0090] NCR is a repeater that allows network control. NCR can send data to a specific space according to the instructions of the network equipment. For example, it receives data from the base station and forwards the data to the reference point. NCR can bring better spatial directionality to the data transmission. The reference point can be a specific geographical location, such as the center of a cell. Terminal 120 can be located at the reference point and receive the signal forwarded by NCR. Referring to Figure 2, Figure 2 shows the architecture diagram of NCR. 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 an example of a repeater that forwards data between the base station and the terminal, 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.

[0091] The base station can send control information for the NCR-Fwd, or NCR beam information and forwarding resources, to the NCR-MT. Forwarding resources include a beam index and time resources. The beam index indicates the direction of the transmitted beam, and the time resource indicates the time resource for transmitting the beam.

[0092] Exemplarily, the base station configures the beam information of the NCR through static configuration, semi-static configuration, or dynamic configuration. The specific implementation process of static configuration is as follows: the base station sends the beam information of the NCR to the 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 sent toward a reference point. The interval of the time resource of the beam sent toward the same reference point is the duration of the period. In a beam indication, the period corresponding to the time resource of the beam sent toward each reference point is the same.

[0093] The specific implementation process of semi-static configuration is as follows: the base station sends NCR beam information to the 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 NCR beam information configured by RRC through MAC CE.

[0094] The specific implementation process of dynamic configuration is as follows: the base station uses downlink control information (DCI) to send control information for NCR-Fwd. For example, the base station uses DCI format 5_0 to carry control information. This control information uses 6 bits to indicate the beam index, thereby indicating 64 beam directions. The base station can configure the value of Lmax through RRC. Each DCI indication indicates L beam directions, where L is less than or equal to Lmax. The beam directions are mapped one-to-one to time domain resources.

[0095] After receiving the control information, NCR-MT controls NCR-Fwd to perform the corresponding operation. In other words, the base station can control NCR-Fwd through interaction with NCR-MT, thus embodying the "network control" function in NCR.

[0096] Communication between base stations and NCRs, between NCRs, and between NCRs and terminals can be carried out through licensed spectrum, unlicensed spectrum, or both. Communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0097] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device that includes the terminal functions. The functions of the NCR may also be performed by a module (such as a chip or a modem) in the NCR, or by a device that includes the NCR functions.

[0098] In this application, the base station sends a downlink signal, downlink data or downlink information to the NCR, and the NCR sends a downlink signal to the terminal. The downlink information is carried on the downlink channel, where the data is encoded using channel coding, and the channel-coded data is transmitted after constellation modulation; the terminal sends an uplink signal, uplink data or uplink information to the NCR, and the NCR sends a uplink signal to the base station. The uplink information is carried on the uplink channel, and the uplink data can also be encoded using channel coding. The encoded data is transmitted to the satellite base station after constellation modulation.

[0099] The architecture of the non-terrestrial network (NTN) system includes a transparent transmission architecture and a regeneration architecture. For the transparent transmission architecture, the satellite directly performs frequency conversion and forwarding of data. In the regeneration architecture, the satellite basically has various functions of a base station, such as baseband signal processing of data. In the satellite system of the transparent transmission architecture, the control information comes from the ground telemetry, tracking and command (TT&C) link. Specifically, for the adjustment of the beam, the beam pattern and other information are uploaded to the satellite payload through TT&C, and the satellite payload can perform corresponding transparent transmission and forwarding of the signal according to the received beam pattern. A satellite based on the NCR architecture is equivalent to realizing the TT&C function in the transparent transmission satellite through a control link. From a certain perspective, it is equivalent to the standardization of TT&C. The method of the embodiment of the present application can be applied to architectures such as the transparent transmission architecture and the regeneration architecture.

[0100] 3 , a satellite based on the NCR architecture (or an NCR set on a satellite) needs to continuously adjust the direction and power value of the beam during its movement so that the beam can point to a 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 staring. In related technologies, the base station needs to 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 more air interface resources. In addition, since DCI has a length limit, for example, a maximum of 140 bits, when using DCI to indicate beam information, more than 20 bits (6 bits of beamindex + several bits of time resource) are required to indicate one beam, so the beam information indicated by one DCI is less.

[0101] In response to the above problems, the present application proposes a communication method. Referring to Figure 4, in this method, the base station sends data to the reference point through the NCR and instructs the NCR to send the beam information of the beam used for data transmission. The beam information may include the beam index, time resource, 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 subsequently located at other positions (the second position and the third position as shown in Figure 4) based on its own movement. In this way, the base station can indicate less beam information to the NCR, saving air interface resources.

[0102] The following describes the communication method provided by the embodiment of the present application, taking the NCR forwarding data sent by the base station to the reference point (the reference point can be a terminal) as an example. Referring to Figure 5, the process includes the following steps:

[0103] S501: A base station sends first information to an NCR. Correspondingly, the NCR receives the first information from the base station.

[0104] The first information is used to determine an amplification gain of 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. The first amplification gain and the second amplification gain are different.

[0105] The amplification gain in the embodiment of the present application may refer to the power amplification gain used by the NCR to transmit a beam (or signal).

[0106] Exemplarily, the first information indicates a first signal-to-noise ratio or a reference amplification gain. Optionally, the first information includes the first signal-to-noise ratio or the reference amplification gain. The first signal-to-noise ratio is a signal-to-noise ratio for sending the first data to the first reference point, or the first signal-to-noise ratio is a signal-to-noise ratio for sending the first data in the direction of the first beam.

[0107] For example, the baseline amplification gain is the baseline amplification gain for sending the first data to the first reference point. In other words, the baseline amplification gain is the baseline amplification gain for sending the first data in the direction of the first beam. In this embodiment of the present application, "sending the first data to the first reference point" can be replaced by "sending the first data in the direction of the first beam."

[0108] The first beam is the first beam that the base station instructs the NCR to send toward the first reference point. The direction of the first beam can be understood as the initial beam direction. In other examples, such as when the base station instructs the NCR to forward data to the second reference point, the direction of the first beam can be referred to as sending data to the first reference point, where the direction of the first beam is replaced by the direction of the initial beam sent to the second reference point.

[0109] In some embodiments, the base station can obtain the signal-to-noise ratio requirement of the first reference point for the received signal and send the signal-to-noise ratio to the NCR. The signal-to-noise ratio can be the first signal-to-noise ratio. For example, if the signal-to-noise ratio requirement of the first reference point for the received signal is greater than or equal to 15 dB, then the first signal-to-noise ratio can be 15 dB.

[0110] In some embodiments, if the first information indicates a first signal-to-noise ratio, the first amplification gain and the second amplification gain can be determined based on 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.

[0111] Exemplarily, the first amplification gain = first signal-to-noise ratio - signal power received by the NCR - antenna gain of the NCR + path loss for signals sent by the NCR to the first reference point. For example, if the first signal-to-noise ratio is 3dB, the signal power received by the NCR is 10dB, the antenna gain of the NCR is 2dB, and the path loss for signals sent by the NCR to the first reference point is 5dB, then the first amplification gain = 3 - 10 - 2 + 5 = -4dB. 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 3dB, the signal power received by the NCR is 5dB, the antenna gain of the NCR is 2dB, and the path loss for signals sent by the NCR to the first reference point is 5dB, then the first amplification gain = 3 - 5 - 2 + 5 = 1dB. When the first amplification gain is greater than 0, the signal sent to the first reference point is amplified using that value (e.g., 1dB).

[0112] As another example, if the first information indicates a reference amplification gain, the first amplification gain may be determined according to the reference amplification gain and the first compensation value.

[0113] Optionally, the first compensation value may be determined by a compensation value for the NCR's antenna gain and / or a compensation value for the path loss of signals transmitted by the NCR to the first reference point. The compensation value for the NCR's antenna gain may be the difference between the antenna gain of the NCR's first transmitted beam and the antenna gain of the NCR's current transmitted beam. For example, the compensation value for the antenna gain when the NCR transmits the second beam may be the difference between the antenna gain of the NCR's first transmitted beam and the antenna gain of the NCR's second transmitted beam. The compensation value for the path loss of signals transmitted by the NCR to the first reference point may be the difference between the path loss of the NCR's first transmitted beam and the path loss of the NCR's current transmitted beam. For example, the compensation value for the path loss when the NCR transmits the second beam may be the difference between the path loss of the NCR's first transmitted beam and the path loss of the NCR's second transmitted beam. Referring to Figure 6, the first beam may be the beam used by the NCR to transmit the first data to the first reference point. The second beam may be the beam used by the NCR to transmit the second data to the first reference point.

[0114] In one possible approach, the first amplification gain = the reference amplification gain - the compensation value for the NCR's antenna gain + the compensation value for the path loss of the signal transmitted by the NCR to the first reference point. For example, if the amplification gain of the NCR's first transmitted beam (i.e., the first amplification gain) corresponds to the compensation value for the NCR's antenna gain and the compensation value for the path loss of the signal transmitted by the NCR to the first reference point, both of which are 0, then the reference amplification value is the first amplification gain.

[0115] For another example, for the method gain of the NCR's second beam transmission (i.e., the second amplification gain), if the baseline amplification gain is 5dB, the NCR's antenna gain compensation value is 2dB, and the path loss compensation value for the NCR's signal transmission to the first reference point is 5dB, then the second amplification gain = 5-2+5 = 8dB. For example, similar to the first information indicating the first signal-to-noise ratio, when the first amplification gain is less than 0, the signal may no longer be amplified based on the baseline amplification gain. Alternatively, the corresponding amplification gain value may be reduced based on the baseline amplification gain.

[0116] 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 resulting first amplification gain is positive, meaning the amplification gain required for the current beam is greater than the reference amplification gain to compensate for the signal energy loss caused by the current NCR's smaller antenna gain. If the path loss experienced by the NCR's access link is greater than the reference amplification gain, the resulting first amplification gain is positive, meaning the amplification gain required for the current beam is greater than the reference amplification gain to compensate for the signal energy loss caused by the large path loss.

[0117] In some embodiments, the first information indicates a first signal-to-noise ratio.

[0118] In some embodiments, the first information indicates a reference amplification gain.

[0119] For example, referring to FIG4 , the first information includes a first signal-to-noise ratio (SNR) of a beam transmitted by the NCR to the first reference point when the NCR is in the first position, or a reference amplification gain of a beam transmitted by the NCR to the first reference point when the NCR is in the first position, but does not include a first SNR of a beam transmitted by the NCR to the first reference point when the NCR is in other positions (such as the second position, the third position, etc.), or a reference amplification gain of a beam transmitted by the NCR to the first reference point when the NCR is in other positions. The NCR can determine the first amplification gain of data transmitted when it is in the first position and the second amplification gain of data transmitted when it is in the second position based on the above examples.

[0120] It is understood that a first signal-to-noise ratio can have multiple values, but these multiple values ​​all indicate the first signal-to-noise ratio when the NCR transmits a beam to the first reference point when the NCR is at the first position. The NCR can process these multiple values ​​to obtain a first signal-to-noise ratio for calculating the first amplification gain. A reference amplification gain can also have multiple values, similar to the first signal-to-noise ratio, and will not be further described.

[0121] S502: The NCR sends first data to a first reference point using a first amplification gain.

[0122] S503: The NCR sends second data to the first reference point using a second amplification gain, wherein the first amplification gain and the second amplification gain are determined according to the first information.

[0123] Exemplarily, referring to Figure 6, the first data is data sent by the base station to the NCR that needs to be forwarded by the NCR to the first reference point. The NCR can be located at the first position and use the first beam to send the first data. The second data is also data sent by the base station to the NCR that needs to be forwarded by the NCR to the first reference point. The NCR can be located at the second position and use the second beam to send the second data. 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. The first beam can be an initial beam, that is, the base station indicates to the NCR the position of the reference point to which the initial beam points or the direction in which the beam points, and the pointing angle of the beam subsequently sent by the NCR (such as the second beam) is obtained by NCR calculation.

[0124] Optionally, referring to FIG. 7 , in some embodiments, the method shown in FIG. 5 further includes S701 and S704 .

[0125] S701: The base station sends third indication information to the NCR. Correspondingly, the NCR receives the third indication information from the base station.

[0126] The third indication information indicates the position of the first reference point or the pointing direction of the first beam.

[0127] For example, the position of the first reference point can be indicated by a global satellite navigation system. The direction of the first beam can be indicated by an indication method in related art (such as a beam index). For example, one of 64 beam directions can be indicated by 6 bits.

[0128] S704: The base station sends fourth indication information to the NCR. Correspondingly, the NCR receives the fourth indication information from the base station.

[0129] The fourth indication information instructs the NCR to send a time resource (such as a first time resource) of the first data to the first reference point. Exemplarily, the time resource of the first data may include a start time and a time length, such as a start position of the time resource occupied by the first data and the length of the time resource.

[0130] Exemplarily, the fourth indication information may indicate the time resource by indicating a synchronization signal block (SSB).

[0131] In some embodiments, the fourth indication information may indicate multiple time resources, for example, the time resources used by the NCR to send the first to third beams to the first reference point. Referring to FIG6 , the first time resource may be used to send data when the NCR is at the first position, the second time resource may be used to send data when the NCR is at the second position, and the third time resource may be used to send data when the NCR is at the third position.

[0132] In other embodiments, the time resource 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.

[0133] Optionally, in some embodiments, the above communication method also includes S706.

[0134] S706: The base station sends fifth indication information to the NCR. Correspondingly, the NCR receives the fifth indication information from the base station.

[0135] The fifth indication information indicates the period length of the time resource used by the NCR to forward data to the same reference point. In other words, the period length is the duration between sending the first data to the first reference point and sending the second data to the first reference point. Alternatively, the period length is the duration between two data transmissions to the same reference point.

[0136] In some embodiments, the first time resource information is further used to determine a third time resource, during which the NCR sends the second data to the first reference point. The third time resource is the first time resource plus a time length corresponding to the cycle length. Based on the first time resource and the cycle length, the NCR can determine the time resource for the next data forwarding to the first reference point. This eliminates the need for the base station to indicate the time resource each time the NCR forwards a signal to the same reference point, thereby reducing air interface resource usage. For example, if the cycle length is 20 milliseconds and the start time of the first time resource is 5 milliseconds, the start time of the third time resource is 25 milliseconds.

[0137] It is understandable that, in some embodiments, the frequency domain resources used by 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 used by the NCR to send the first data to the first reference point.

[0138] S502 can be implemented as S702, and S503 can be implemented as S703.

[0139] S702: The NCR sends first data in a first direction using a first amplification gain, wherein the first direction is determined according to third indication information.

[0140] If the third indication information indicates the location of the first reference point, the NCR may calculate the first direction based on its own location and the location of the first reference point, and use the time resources indicated by the fourth indication information to send the first data in the first direction. If the third indication information indicates the direction of the first beam, the NCR may use the time resources indicated by the fourth indication information to send the first data in the direction of the first beam. In this case, the first beam can be considered to be pointing to the location of the first reference point. The direction of the first beam can be expressed as a first direction.

[0141] S703: The NCR sends second data in a second direction using a second amplification gain.

[0142] The second direction is determined according to the third indication information, and the first direction is different from the second direction.

[0143] NCR can calculate its own position at the second and third time resources based on its own position at the current moment or historical moment, thereby calculating the angle of sending the beam toward the first reference point, amplification gain, etc., and sending the beam to the first reference point in the second and third time resources.

[0144] It should be noted that the above example only uses the amplification gain including the first amplification gain and the second amplification gain. In some examples, the amplification gain may also include an amplification gain of 3. For example, referring to FIG6 , the NCR calculates an amplification gain of 3 and transmits data 3 to the first reference point using the third beam at the third position. The amplification gain of the third beam is amplification gain of 3.

[0145] Using the method provided in the embodiments of the present application, the base station transmits a first signal-to-noise ratio (SNR) or a reference amplification gain to the NCR, enabling the NCR to independently calculate the amplification gain for the beam transmitted to the first reference point. This eliminates the need for the base station to calculate the amplification gain for the beam transmitted by the NCR, reducing the base station's computational burden. Furthermore, the NCR's position changes during operation, and the NCR's independent calculations can achieve higher accuracy in the determined amplification gain. The NCR calculates the first and second amplification gains based on the first SNR or the reference amplification gain, reducing the number of amplification gains transmitted by the base station and conserving air interface resources.

[0146] Optionally, referring to FIG. 7 , in some other embodiments, the method shown in FIG. 5 further includes S705 .

[0147] S705: The base station sends an enabling flag to the NCR. Correspondingly, the NCR receives the enabling flag from the base station.

[0148] The enabling flag is used to enable the NCR to determine the amplification gain of data sent to the first reference point according to the first information.

[0149] Illustratively, after receiving the enabling identifier, the NCR may execute steps S502 and S503.

[0150] As another example, the enabling identifier may be used to enable the NCR to execute the method provided in the embodiment of the present application. The specific steps for enabling the NCR to execute the method may refer to the description of other steps in this document.

[0151] In this solution, the NCR is instructed to execute the method of the embodiment of the present application by an enabling flag, so that after receiving the enabling flag, the NCR can determine the beams sent to the reference point at multiple times (or when the NCR is located at multiple positions) based on the beam information corresponding to a time indicated by the base station (or when the NCR is located at one position), thereby reducing the information sent by the base station and saving air interface resources.

[0152] The above embodiment uses the example of a base station instructing an NCR to forward data to a single reference point. In some embodiments, the base station can instruct the NCR to forward data to multiple reference points. Referring to Figure 8 , each ellipse represents a reference point, and Figure 8 shows reference points 1 to 17. The base station can instruct the NCR to forward data to reference points 1 to 17.

[0153] Referring to Figure 9 , the base station instructs the NCR to forward data to multiple reference points. The fourth indication information may indicate first time resource information (SSB0 as shown in Figure 9 ). In some embodiments, the fourth indication information may also indicate second time resource information (SSB1 as shown in Figure 9 ). 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.

[0154] The fourth indication information can also indicate more time resource information, such as the time resource information of the NCR sending data to reference point 3 to reference point 17, such as indicating the time domain resources of reference point 3 to reference point 16 through SSB3 to SSB16 (not shown in the figure), indicating the time domain resources of reference point 17 through SSB17 shown in Figure 9, etc.

[0155] In some embodiments, the fourth indication information may indicate a time resource for the 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, third, or more times.

[0156] The above embodiment illustrates an example of a base station instructing an NCR to periodically forward data of multiple reference points. The following describes the amplification gain when the base station instructs the NCR to forward data of multiple reference points.

[0157] In other embodiments, the first information is further used to determine the amplification gain of data sent by the NCR to the second reference point, and 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.

[0158] Optionally, the above communication method also includes S707 and S708.

[0159] S707 . The NCR sends third data to the second reference point using a third amplification gain.

[0160] S708. The NCR sends fourth data to the second reference point using a fourth amplification gain.

[0161] The amplification gain of the first data is the same as the amplification gain of the third data, and the amplification gain of the second data is the same as the amplification gain of the fourth data. The second reference point may be the reference point 2 shown in FIG8 .

[0162] 8 , the power required by the NCR to forward data to reference point 1 to reference point 5 may be the same. The NCR may determine the amplification gain required to forward data to reference point 1 to reference point 5 based on the first information.

[0163] In some embodiments, the enabling flag is further used to indicate enabling determination of an amplification gain of data sent to the second reference point according to the first information.

[0164] Optionally, in some embodiments, the above communication method also includes S709.

[0165] S709: The base station sends the third information to the NCR. Correspondingly, the NCR receives the third information from the base station.

[0166] 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. The third amplification gain and the fourth amplification gain are different.

[0167] 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 the amplification gain of the data sent to the first reference point.

[0168] Exemplarily, when the amplification gain of the second reference point is different from the amplification gain of the first reference point, the base station may use different information to indicate the amplification gain of the second reference point. Referring to Figure 10, Figure 10 shows how the base station indicates beam information corresponding to multiple reference points to the NCR. The base station indicates to the NCR the cycle length, the enable flag, the first signal-to-noise ratio or reference amplification gain corresponding to each reference point, the position of each reference point or the initial beam pointing to each reference point, and the time resource of each reference point. Among them, the time resource can be the time resource for the NCR to send a beam toward the reference point for the first time.

[0169] As another example, referring to FIG11, FIG11 shows another way in which the base station indicates beam information corresponding to multiple reference points to the NCR. The base station indicates to the NCR the cycle length, the enable flag, two or more first signal-to-noise ratios or two or more reference amplification gains, the position of each reference point or the initial beam pointing to each reference point, the time resource of each reference point, and the amplification gain group corresponding to each reference point. The time resource may be the time resource for the first time the NCR sends a beam toward the reference point. The NCR can determine the first signal-to-noise ratio or the reference amplification gain corresponding to each reference point based on the correspondence between the amplification gain group and the first signal-to-noise ratio or the reference amplification gain.

[0170] In some embodiments, the third indication information indicates the positions of multiple reference points or indicates the pointing directions of beams transmitted toward the multiple reference points. If the third indication information indicates the pointing directions of beams transmitted toward the multiple reference points, the third indication information indicates a pointing direction of a beam for each reference point, and the NCR can calculate the pointing direction of the beam transmitted toward each reference point after its position changes based on its own movement.

[0171] 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 instructing the NCR to send data to the second reference point at the second time resource.

[0172] For example, the NCR may also determine the fourth time resource used for the next data forwarding to the second reference point based on the second time resource and the cycle length. The time resources used for data forwarding to other reference points may be similarly determined and will not be described in detail.

[0173] When the fourth indication information indicates multiple time resources, the multiple time resources may be time resources used by the NCR to send data to the same reference point, or may be time resources used by the NCR to send data to different reference points.

[0174] Exemplarily, referring to Figure 12, the base station indicates a reference point position or an initial beam direction to the NCR, and the multiple time resources can be multiple time resources for sending data to the reference point, or the beam direction corresponding to the reference point obtained along the initial beam direction.

[0175] As another example, referring to Figures 10 and 13, the base station indicates multiple reference point positions or multiple initial beam pointings to the NCR. The multiple time resources can be multiple time resources for sending data to the multiple reference points, or beam pointings corresponding to the reference points obtained along the multiple initial beam pointings.

[0176] Optionally, referring to FIG. 7 , in some embodiments, the method of the embodiment of the present application further includes S710 .

[0177] S710: The base station sends second information to the NCR. Correspondingly, the NCR receives the second information from the base station.

[0178] The second information includes an identifier of the amplification gain group corresponding to the first reference point or the pointing direction of the first beam and an identifier of the amplification gain group corresponding to the second reference point.

[0179] With reference 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 as or different from each other. When 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 are the same, the NCR may determine the amplification gain of the second reference point based on the first information.

[0180] With this solution, the identifier of the amplification gain group occupies fewer bits, and using the identifier of the amplification gain group to indicate the first signal-to-noise ratio or reference amplification gain corresponding to each reference point occupies less overhead, which can save air interface resources.

[0181] In the above embodiment, by indicating a first signal-to-noise ratio or a reference amplification gain to the NCR, the NCR independently calculates the amplification gain for transmitting beams to each reference point, thereby achieving power control in a beam-staring scenario and reducing the signaling overhead of the base station instructing the NCR. Considering that the NCR's independent calculation of the amplification gain for transmitting beams to each reference point may cause the signal amplification gain to exceed the power flux density (PFD) threshold constraint specified by the International Telecommunication Union, the present application also discloses the following solution.

[0182] In some embodiments, the base station may further send first indication information to the NCR. Correspondingly, the NCR receives the first indication information from the base station.

[0183] The first indication information is used to indicate the angle of the first beam, the first beam is used to send first data, the first amplification gain meets the power density priority requirement, and the power density priority requirement is determined based on the angle of the first beam.

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

[0185] In some embodiments, the angle of the first beam is an azimuth angle of the first beam.

[0186] For example, the power density priority determined according to the angle of the first beam may refer to Table 1.

[0187] Table 1

[0188] For example, the angle δ of the first beam and the threshold value of the amplification gain P satisfy the following relationship: P 0°≤δ≤5° P+r×(δ-5) 5°<δ≤25° P+20r 25°<δ≤90°

[0189] The NCR determines whether the beam gain and beam angle calculated in the above manner exceed the threshold limit. For beams whose gain exceeds the PFD, the NCR adjusts the beam gain according to the PFD threshold.

[0190] For example, take the first beam in the frequency band 1518-1525 as an example. If the NCR determines based on the first information that the elevation angle of the first beam is 90° and its PFD corresponding to 1 MHz is P = -128 + 20 × 0.5 = -118 dB (watts / square meter), then its effective isotropic radiated power (EIRP) density is -118 + 10 × log 10 (4πd 2 )dBW / MHz. For the LEO-600 satellite system, at a 90-degree elevation angle, d = 600km, so its EIRP density is 8.56dBW / MHz. Since EIRP = satellite antenna gain + transmit power = satellite antenna gain + signal input power + amplifier gain, assuming a 240MHz beamwidth, the EIRP density yields the satellite antenna gain = 32.36dBW. Furthermore, assuming the satellite antenna gain signal input power = -20dBW and the satellite antenna gain = 32.36dBi, the maximum amplifier gain is 20dB.

[0191] If the NCR determines that the amplification gain is 22dB based on the first information, since 22dB is greater than 20dB, the NCR amplifies the power by 20dB and transmits data to the UE; if the NCR determines that the amplification gain is 18dB based on the first information, since 18dB is not greater than 20dB, the NCR amplifies the power by 18dB and transmits data to the UE.

[0192] In some embodiments, the base station may also send second indication information to the NCR. Accordingly, the NCR receives the second indication information from the base station, where the second indication information is used to enable power density priority. Exemplarily, the second indication information may be 1 bit, which may be represented by the IE pfdPriority. Exemplarily, the second indication information may be indicated via a DCI, MAC CE, or RRC.

[0193] The first indication information is described above using the example of the first beam sent by the base station to the first reference point. It is understood that the first indication information can also indicate the angles at which beams are sent to multiple reference points, such as the second reference point and the third reference point, so that the NCR can determine the amplification gain requirement for sending the beam based on the beam angles, thereby ensuring that the amplification gain requirement is met when the NCR sends beams to each reference point.

[0194] Exemplarily, referring to FIG. 14 , the base station may indicate the elevation angle corresponding to each reference point, so that the NCR may calculate whether the amplification gain corresponding to each reference point exceeds a threshold value of the amplification gain.

[0195] In some embodiments, one or more of the following information is carried through 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.

[0196] In other embodiments, one or more of the following information is carried through RRC signaling: 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.

[0197] It is understandable that the information carried by the DCI may be sent in one or more DCIs. The information carried by the RRC signaling may also be sent in one or more RRCs.

[0198] In some embodiments, if the base station indicates beam information of multiple reference points through RRC signaling, the base station may activate or deactivate the beam information of all or some of the multiple reference points through MAC CE. After receiving the activation MAC CE, the NCR may determine the amplified power of the beam of the activated reference point.

[0199] It is 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, the first DCI being used to determine the amplification gain for data transmitted by the NCR from the first position to the third position to the first reference point. The base station sends a second DCI to the NCR, the second DCI being used to determine the amplification gain for data transmitted by the NCR from the fourth position to the fifth position to the first reference point. Referring to Figure 4, the first DCI may include the first information, and the second DCI may include the fifth information.

[0200] The following describes the embodiments of the present application through several specific examples.

[0201] Referring to Figure 12, the base station sends the following information to the NCR via DCI: an enable flag, a reference point location or initial beam pointing, a first signal-to-noise ratio or a reference amplification gain, time resources such as time resource 1 and time resource 2, to instruct the NCR to forward the beam. The enable flag is used to enable the NCR to perform gaze scheduling on the reference point (or beam position), which can be a 1-bit information represented as earth-fixed_FLAG. The reference position information element can indicate the reference point location. After receiving the above information, the NCR can perform the following operations based on the enable flag:

[0202] Example 1

[0203] The DCI sent by the base station to the NCR carries an information element indicating the reference point location and a first signal-to-noise ratio. The NCR determines, based on its own motion trajectory, that it is located at position 1 during time resource 1. Based on the first signal-to-noise ratio and position 1, the NCR determines that the amplification gain for transmitting the beam at position 1 toward the reference point is amplification gain 1. The NCR then transmits a beam with amplification gain 1 toward the reference point during time resource 1.

[0204] When the NCR determines that time resource 2 is located at position 2 based on its own motion trajectory, it determines that the amplification gain of the beam sent at position 2 toward the reference point is amplification gain 2 based on the first signal-to-noise ratio and position 2. The NCR sends a beam with amplification gain 2 toward the reference point on time resource 2. The NCR calculates the amplification gain in subsequent time resources by referring to time resource 2 and sends a beam toward the reference point.

[0205] Example 2

[0206] The DCI sent by the base station to the NCR carries an information element indicating the initial beam direction and a first signal-to-noise ratio. The NCR determines, based on the first signal-to-noise ratio, that the amplification gain of the beam sent along the initial beam direction is amplification gain 1, and uses time resource 1 to send a beam with amplification gain 1 along the initial beam direction.

[0207] The NCR determines its position at time resource 2 based on its own motion trajectory, and determines the beam pointing at time resource 2 based on the NCR's position and initial beam pointing at time resource 2. Based on the first signal-to-noise ratio or amplification gain, the amplification gain of the beam transmitted along the beam pointing at time resource 2 at position 2 is amplification gain 2. At time resource 2, the NCR transmits a beam with amplification gain 2 along the beam pointing at time resource 2. In subsequent time resources, the NCR calculates the amplification gain by referring to time resource 2 and transmits a beam toward the reference point.

[0208] Example 3

[0209] The DCI sent by the base station to the NCR carries an information element indicating the reference point location and the reference amplification gain. The NCR transmits a beam with an amplification gain equal to the reference amplification gain toward the reference point location at time resource 1.

[0210] The NCR determines that it is at position 2 at time resource 2 based on its own motion trajectory, and calculates the amplification gain 2 of the beam at position 2 based on the reference amplification gain. At time resource 2, a beam with an amplification gain of amplification gain 2 is transmitted toward the reference point position.

[0211] Example 4

[0212] The DCI sent by the base station to the NCR carries an information element indicating the initial beam direction and the reference amplification gain. At time resource 1, the NCR sends a beam with an amplification gain equal to the reference amplification gain along the initial beam direction.

[0213] The NCR determines that it is at position 2 at time resource 2 based on its own motion trajectory. It also determines the beam direction at time resource 2 based on the NCR's position and initial beam direction at time resource 2. It calculates the amplification gain 2 of the beam at position 2 based on the reference amplification gain. At time resource 2, the NCR transmits a beam with an amplification gain of 2 along the beam direction at time resource 2.

[0214] In some examples, referring to FIG13 , 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 pointing, a first signal-to-noise ratio or a reference amplification gain, and multiple time resources (such as time resource 1, time resource 2, etc.). Each reference point position corresponds to a time resource (such as reference point position 1 corresponds to time resource 1, reference point position 2 corresponds to time resource 2), or each initial beam pointing corresponds to a time resource (such as initial beam pointing 1 corresponds to time resource 1, initial beam pointing 2 corresponds to time resource 2). The enable flag is used to enable the NCR to perform staring scheduling on the reference point (or the wave position), which can be 1-bit information, represented as earth-fixed_FLAG. The reference position information element can indicate the reference point position.

[0215] The base station can use the above information to instruct the NCR to send beams to multiple reference points or along multiple initial beam directions. The gain of the beam sent toward each reference point or along each initial beam direction can be obtained by the first signal-to-noise ratio or the reference amplification gain. At each reference point or along the corresponding time resource of each initial beam direction, the beam is sent toward the reference point or along the initial beam direction. The NCR can obtain the time resource for the next transmission of the beam toward the reference point position or along the initial beam direction by adding the period length to the time resource corresponding to each reference point position or each initial beam direction. With reference to Examples 1 to 4 above, the NCR can send a beam toward 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.

[0216] In some examples, referring to FIG10 , 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.), and multiple time resources (such as time resource 1, time resource 2, time resource 3, etc.). Each reference point position corresponds to a time resource, and each reference point position corresponds to a first signal-to-noise ratio or reference amplification gain. The enable flag is used to enable the NCR to perform staring scheduling on the reference point (or the wave position), which can be 1-bit information, represented as earth-fixed_FLAG. The reference position information element can indicate the reference point position.

[0217] Alternatively, the base station sends the following information to the NCR through RRC signaling: cycle length, enable flag, multiple initial beam pointing directions (such as initial beam pointing direction 1, initial beam pointing direction 2, initial beam pointing direction 3, etc.), multiple first signal-to-noise ratios or benchmark amplification gains (such as first signal-to-noise ratio 1 or benchmark amplification gain 1, first signal-to-noise ratio 2 or benchmark amplification gain 2, first signal-to-noise ratio 3 or benchmark amplification gain 3, etc.), and multiple time resources (such as time resource 1, time resource 2, time resource 3, etc.). Each initial beam pointing direction corresponds to one time resource, and each initial beam pointing direction corresponds to one first signal-to-noise ratio or benchmark amplification gain.

[0218] The NCR may send a beam to each reference point location based on the time resource, first signal-to-noise ratio, or reference amplification gain corresponding to the location. Alternatively, the NCR may send a beam to the reference point location based on 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 location (or each initial beam direction) is different, and the base station may separately indicate the first signal-to-noise ratio or reference amplification gain corresponding to each reference point location (or each initial beam direction).

[0219] In some examples, referring to FIG11 , the base station sends the following information to the NCR via RRC signaling: a cycle length, an enable flag, multiple first signal-to-noise ratios (SNRs) or reference amplification gains (e.g., first SNR 1 or reference amplification gain 1, first SNR 2 or reference amplification gain 2, first SNR 3 or reference amplification gain 3), multiple reference point locations (e.g., reference point location 1, reference point location 2, reference point location 3), multiple time resources (e.g., time resource 1, time resource 2, time resource 3), and multiple amplification gain group identifiers (e.g., amplification gain group 1, amplification gain group 2). Each reference point location corresponds to a time resource, each reference point location corresponds to an amplification gain group identifier, and each amplification gain group identifier corresponds to a first SNR or a reference amplification gain (e.g., amplification gain group 1 corresponds to first SNR 1 or reference amplification gain 1, and amplification gain group 2 corresponds to first SNR 2 or reference amplification gain 2). The enable flag is used to enable the NCR to perform staring scheduling on the reference point (or beam position) and can be a 1-bit message represented as earth-fixed_FLAG. The reference position information element may indicate the reference point position.

[0220] The NCR can send a beam to each reference point location based on the time resource, first signal-to-noise ratio, or reference amplification gain corresponding to the location. Alternatively, the NCR can send a beam to the reference point location based on the time resource, first signal-to-noise ratio, or reference amplification gain corresponding to each initial beam pointing. If the first signal-to-noise ratio or reference amplification gain corresponding to multiple reference point locations (or initial beam pointing) is the same, the consumption of air interface resources can be reduced by indicating the grouping of each reference point location (or initial beam pointing) and the first signal-to-noise ratio or reference amplification gain corresponding to each group.

[0221] In the various embodiments of the present application, unless otherwise specified or logically conflicting, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and 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 scheme can be implemented. Optionally, some operations in the process of each method embodiment are optionally combined, and / or the order of some operations is optionally changed. In addition, 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. Other execution orders can also be used between the steps. It is not intended to indicate that the execution order is the only order in which these operations can be performed. Ordinary technicians in this field will think of various ways to reorder the operations in this article. In addition, it should be noted that the process details involved in a certain embodiment of this article are also applicable to other embodiments in a similar manner, or different embodiments can be used in combination.

[0222] It is understood that, in order to implement the functions in the above embodiments, the base station and the terminal include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the units and method steps of the various examples described in the embodiments disclosed in this application, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0223] Figures 15 and 16 are schematic diagrams of the structures of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the NCR or base station in the above-mentioned method embodiments, and thus can also achieve the beneficial effects of the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be a wireless relay device as shown in Figure 1, a RAN node as shown in Figure 1, a terminal as shown in Figure 1, etc., and can also be a module (such as a chip) applied to a wireless relay device, a RAN node, or a terminal.

[0224] As shown in Figure 15, 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 RAN node in the method embodiment shown in any of Figures 5 or 7 above.

[0225] When the communication device 1300 is used to implement the NCR function in the method embodiment shown in Figure 5: the transceiver unit 1320 is used to receive the first information, send the first data to the first reference point using the first amplification gain, and send the second data to the first reference point using the second amplification gain; the processing unit 1310 is used to perform processing-related functions.

[0226] When the communication device 1300 is used to implement the function of the base station in the method embodiment shown in FIG5 , the transceiver unit 1320 is used to send the first information; and the processing unit 1310 is used to perform processing-related functions.

[0227] When the communication device 1300 is used to implement the NCR function in the method embodiment shown in Figure 7: the transceiver unit 1320 is also used to receive the enable identifier, the third indication information, the fourth indication information, the fifth indication information, the second information or the third information, and use the third amplification gain to send the third data to the second reference point and use the fourth amplification gain to send the fourth data to the second reference point; the processing unit 1310 is used to perform processing-related functions.

[0228] When the communication device 1300 is used to implement the function of the base station in the method embodiment shown in Figure 7: the transceiver unit 1320 is also used to send an enable identifier, a third indication information, a fourth indication information, a fifth indication information, the second information or the third information; the processing unit 1310 is used to perform processing-related functions.

[0229] For a more detailed description of the processing unit 1310 and the transceiver unit 1320 , reference may be made to the relevant description in the method embodiment shown in FIG. 5 or FIG. 7 .

[0230] As shown in Figure 16, communication device 1400 includes a processor 1410 and an interface circuit 1420. Processor 1410 and interface circuit 1420 are coupled to each other. It is understood that interface circuit 1420 can be a transceiver or an input / output interface. Optionally, communication device 1400 may also include a memory 1430 for storing instructions executed by processor 1410, input data required by processor 1410 to execute instructions, or data generated after processor 1410 executes instructions.

[0231] When the communication device 1400 is used to implement the method shown in FIG. 5 or FIG. 7 , the processor 1410 is used to implement the functions of the processing unit 1310 , and the interface circuit 1420 is used to implement the functions of the transceiver unit 1320 .

[0232] When the communication device is a chip used in an NCR, the terminal chip implements the NCR functionality described in the method embodiments. The NCR chip receives information from the base station, which can be understood as the information being first received by other modules in the NCR (e.g., a radio frequency module or antenna) and then sent to the NCR chip by these modules. The NCT chip sends information to the base station, which can be understood as the information being first sent to other modules in the NCR (e.g., a radio frequency module or antenna) and then sent to the base station by these modules.

[0233] When the above-mentioned communication device is a chip applied to a base station, the base station chip realizes the function of the base station in the above-mentioned method embodiment.

[0234] In this application, when entity A sends information to entity B, it can be done directly from A to B or indirectly through another entity. Similarly, when entity B receives information from entity A, it can be done directly from entity B or indirectly through another entity. Entities A and B herein can be RAN nodes or terminals, or modules within a RAN node or terminal. The sending and receiving of information can be information exchange between a RAN node and a terminal, for example, between a base station and a terminal; the sending and receiving of information can also be information exchange between two RAN nodes, for example, between a CU and a DU; the sending and receiving of information can also be information exchange between different modules within a device, for example, between a terminal chip and other modules in the terminal, or between a base station chip and other modules within the base station.

[0235] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0236] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and storage medium can also exist in a base station or a terminal as discrete components.

[0237] Optionally, the present application also provides a computer program product. All or part of the processes in the above method embodiments may be completed by a computer program instructing related hardware. The program may be stored in the above computer program product, and when executed, the program may include the processes in the above method embodiments.

[0238] Optionally, the present application also provides a computer instruction. All or part of the process in the above method embodiment can be completed by the computer instruction to instruct the relevant hardware (such as a computer, processor, wireless relay device, terminal or RAN node, etc.). The program can be stored in the above computer-readable storage medium or in the above computer program product.

[0239] Optionally, the present application also provides a communication system, including: the RAN node and terminal in the above embodiment.

[0240] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

Claims

1. A communication method, characterized in that, Including: Receiving first information for determining the amplification gain of data transmitted to a first reference point, where 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 and the second amplification gain are 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, wherein 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 transmitting the first data to the first reference point, or the first signal-to-noise ratio is the signal-to-noise ratio of transmitting the first data to the pointing direction of a first beam; the reference amplification gain is the reference amplification gain of transmitting the first data to the first reference point, or the reference amplification gain is the reference amplification gain of transmitting the first data to the pointing direction of the first beam.

3. The method according to claim 2, characterized in that, 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 enable flag for enabling the determination of the 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 the amplification gain of data transmitted to a second reference point, where 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 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, 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.

6. The method according to any one of claims 1-4, characterized in that, The method further includes: Receiving third information for determining the amplification gain of data transmitted to the second reference point, where 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; 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, where 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.

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, where the first time resource information is used to transmit first data to the first reference point, and the cycle length is the 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, wherein 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: Send 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, and the third amplification gain and the fourth amplification gain are different. 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.

19. The method according to claim 17 or 18, characterized in that The method further includes: Send 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: Send first time resource information and a cycle length. The first time resource information is used for the wireless relay device to send first data to the 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 the second data.

21. The method according to any one of claims 13 - 20, characterized in that The method further includes: Send 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.

22. The method according to any one of claims 13-21, wherein The method further includes: Send 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: Send 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, Includes a first device and a second device. 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, Includes a processor and a memory; the memory is used to store computer instructions. 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, Includes a unit or module for executing the method according to any one of claims 1 to 12, or includes 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.

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