Communication method and related apparatus

Abstract

A communication method and a related apparatus. In the method, different radio frequency requirements and / or radiation requirements are respectively defined for satellites of different satellite capability levels, so that various satellite-terrestrial coexistence scenarios can be better adapted, and the communication performance can be improved.

Description

Communication method and related device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on March 7, 2024, with application number 202410264275.X and application name “Communication Methods and Related Devices”, 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 related devices. Background Art

[0003] Compared to terrestrial network (TN) communications (e.g., terrestrial cellular communications), non-terrestrial network (NTN) communications (e.g., satellite communications) offer significant advantages. They offer longer communication ranges, larger coverage areas, and wider frequency bands, providing users with communication services anytime, anywhere. Therefore, satellite communications have a promising future, particularly in international and domestic communications, emergency response, and disaster relief. When NTN and TN coexist, interference between the two systems needs to be considered. Current standards address the situation where the NTN spectrum is adjacent to the terrestrial cellular spectrum by constraining the adjacent channel leakage ratio (ACLR) at the transmitter and the adjacent channel selectivity (ACS) at the receiver to limit adjacent channel interference. However, these standards primarily target satellites with weaker transmission capabilities. For satellites with stronger transmission capabilities, the aforementioned approach of constraining only the ACLR and ACS at the transmitter and receiver is no longer applicable. Summary of the Invention

[0004] The present application provides a communication method and related devices that can meet the requirements of satellite-ground coexistence and are conducive to improving communication performance.

[0005] The present application is introduced below from different aspects. It should be understood that the implementation methods and beneficial effects of the following different aspects can be referenced to each other.

[0006] On the first aspect, the present application provides a communication method, which can be applied to the satellite side, such as a satellite on the satellite side or a component in the satellite (such as a circuit, a chip or a chip system, etc.). Taking the application of this method to a satellite as an example, in this method, the satellite can communicate based on the first radio frequency requirement corresponding to the satellite. The first radio frequency requirement is a radio frequency requirement corresponding to the satellite capability level of the satellite, and the first radio frequency requirement is one of multiple sets of radio frequency requirements, and each set of radio frequency requirements corresponds to a satellite capability level. In other words, different radio frequency requirements can be defined for different satellite capability levels, so that a variety of satellite-ground coexistence scenarios can be better adapted, which is conducive to improving communication performance.

[0007] In a possible implementation, obtaining the first radio frequency requirement corresponding to the satellite includes:

[0008] First indication information is received, where the first indication information indicates the first radio frequency requirement corresponding to the satellite.

[0009] In this implementation mode, the satellite is notified of the first radio frequency requirement it should use through the ground gateway, which helps save computing power.

[0010] In a possible implementation, obtaining the first radio frequency requirement corresponding to the satellite includes:

[0011] The first radio frequency requirement is determined according to the satellite capability level of the satellite and a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the satellite capability level and the radio frequency requirement.

[0012] In this implementation manner, the first radio frequency requirement used by the satellite is determined by the satellite itself, which can save signaling overhead.

[0013] In a possible implementation, obtaining the first radio frequency requirement corresponding to the satellite includes:

[0014] The first radio frequency requirement is determined according to a satellite capability level of the satellite and an area type of a service area of ​​the satellite.

[0015] In this implementation mode, in addition to defining multiple satellite capability levels, multiple regional types are also defined. The satellite can determine the first RF requirements corresponding to the satellite based on the satellite capability level and regional type, which can more flexibly adapt to multiple satellite coexistence scenarios and improve the applicability of the solution.

[0016] In a possible implementation, determining the first radio frequency requirement according to a satellite capability level of the satellite and an area type of a service area of ​​the satellite includes:

[0017] The first radio frequency requirement is determined according to the satellite capability level of the satellite, the regional type of the service area of ​​the satellite, and a second corresponding relationship, where the second corresponding relationship is the corresponding relationship between the satellite capability level, the regional type and the radio frequency requirement.

[0018] In this implementation, by defining the correspondence between the RF requirements and the satellite capability level and the regional type (i.e., the second correspondence), the satellite can quickly determine the first RF requirements corresponding to the satellite based on the second correspondence, as well as the satellite capability level and the regional type, which is conducive to improving communication efficiency.

[0019] In a possible implementation, the area type includes a coexistence type and a non-coexistence type; wherein:

[0020] When the service area of ​​the satellite overlaps with the service area of ​​the terrestrial network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the terrestrial network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the terrestrial network device, the area type of the service area of ​​the satellite is a coexistence type;

[0021] When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold, the area type of the service area of ​​the satellite is a non-coexistence type.

[0022] In one possible implementation, the method further includes:

[0023] Region type information is received, where the region type information is used to indicate a region type of a service area of ​​the satellite.

[0024] In one possible implementation, the method further includes:

[0025] An operating frequency band of the satellite is sent, where the operating frequency band of the satellite is used to determine the area type information.

[0026] In one possible implementation, the radio frequency requirements include one or more of the following:

[0027] ACLR, or ACS.

[0028] In a possible implementation, the communicating based on the first radio frequency requirement includes:

[0029] Communication is performed based on the first radio frequency requirement and a first radiation requirement corresponding to the satellite, where the first radiation requirement is one of a plurality of sets of radiation requirements, each set of radio frequency requirements corresponding to a satellite capability level.

[0030] Under this implementation method, in addition to defining different RF requirements for different satellite capability levels, different radiation requirements can also be defined. This can better adapt to the characteristics of high-capability satellites while taking into account the needs of hardware costs, product capabilities, and coexistence scenarios.

[0031] In one possible implementation, the radiation requirement includes effective isotropic radiated power (EIRP) or EIRP density.

[0032] In one possible implementation, the satellite corresponds to multiple sets of radio frequency requirements and / or multiple sets of radiation requirements, the multiple sets of radio frequency requirements include the first radio frequency requirement, the multiple sets of radiation requirements include the first radiation requirement, and the first radio frequency requirement and the first radiation requirement are related to the operating time of the satellite and / or the transmission beam of the satellite.

[0033] In this implementation mode, due to the mobility of satellites, the same satellite may correspond to multiple sets of RF requirements and / or multiple sets of radiation requirements. The specific set of RF requirements and / or radiation requirements to be sampled can be determined based on the current time and the transmission beam used. This is more in line with the actual situation and the solution is highly applicable.

[0034] On the second aspect, the present application provides a communication method, which can be applied to the network side, such as the ground network equipment on the network side or the components in the ground network equipment (such as circuits, chips or chip systems, etc.). Taking the application of this method to the ground network equipment as an example, in this method, the ground network equipment first obtains the second radiation requirement corresponding to the ground network equipment, and the second radiation requirement is determined based on the satellite capability level of the satellite that coexists with the ground network equipment. The second radiation requirement is one of multiple sets of radiation requirements, and each set of radiation requirements corresponds to a satellite capability level. The service area of ​​the satellite overlaps with the service area of ​​the ground network equipment, and the interval between the working frequency band of the satellite and the working frequency band of the ground network equipment is less than or equal to the first threshold or the working frequency band of the satellite overlaps with the working frequency band of the ground network equipment. Then, the ground network equipment communicates based on the second radiation requirement.

[0035] In an embodiment of the present application, for ground network equipment, the ground network equipment can also select corresponding radio frequency requirements and radiation requirements for constraints based on the satellite capability level and the geographical area type, so that the coexistence requirements can be met through constraints in the coexistence scenario. It should be understood that in the above-mentioned first aspect, the satellite can determine the first radio frequency requirement and / or first radiation requirement corresponding to the satellite based on its own satellite capability level. In the second aspect, the ground network equipment can determine the second radio frequency requirement and / or second radiation requirement corresponding to the ground network equipment based on the satellite capability level of the satellite that has a coexistence relationship with the ground network equipment. Generally speaking, the specific values ​​of the index requirements corresponding to the satellite and the index requirements corresponding to the ground network equipment can be the same or different, and this application does not limit them.

[0036] In a possible implementation, obtaining the second radiation requirement corresponding to the ground network device includes:

[0037] The second radiation requirement corresponding to the ground network equipment is determined according to the satellite capability level of the satellite.

[0038] In one possible implementation, the method further includes:

[0039] A satellite capability level of the satellite is received.

[0040] In one possible implementation, the method further includes:

[0041] receiving a working frequency band of the satellite;

[0042] Sending area type information, where the area type information is used to indicate the area type of the service area of ​​the satellite, and the area type information is determined based on the working frequency band of the satellite.

[0043] In a possible implementation, the area type includes a coexistence type and a non-coexistence type; wherein:

[0044] When the service area of ​​the satellite overlaps with the service area of ​​the terrestrial network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the terrestrial network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the terrestrial network device, the area type of the service area of ​​the satellite is a coexistence type;

[0045] When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold, the area type of the service area of ​​the satellite is a non-coexistence type.

[0046] In a possible implementation, the communicating based on the second radiation requirement includes:

[0047] Communication is performed based on the second radiation requirement and the second radio frequency requirement corresponding to the ground network equipment, the second radio frequency requirement is the radio frequency requirement corresponding to the satellite capability level of the satellite, the second radio frequency requirement is one set of multiple sets of radio frequency requirements, and each set of radio frequency requirements corresponds to a satellite capability level.

[0048] In one possible implementation, the radiation requirement includes EIRP, or EIRP density.

[0049] In one possible implementation, the radiation requirement includes one or more of the following:

[0050] ACLR, or ACS.

[0051] In a third aspect, the present application provides a communication device, which includes a unit or module for executing any method in the first to second aspects, or any possible implementation of any aspect.

[0052] In a fourth aspect, the present application provides a communication device, comprising a processor and a transceiver, wherein the processor and the transceiver are configured to execute any method of the first to second aspects, or any possible implementation of any of the aspects.

[0053] Optionally, the communication device also includes a memory in which a computer program is stored; the above-mentioned processor and transceiver are used to call the computer program in the memory, so that the communication device executes any method in the first aspect to the second aspect, or a method shown in any possible implementation of any aspect therein.

[0054] In one possible design, the communication device may be a chip that implements the above method or a device including a chip.

[0055] In a fifth aspect, the present application provides a communication device, which includes a processor and an interface circuit, the interface circuit being used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor being used to implement any method as described in any of the first to second aspects, or any possible implementation of any of the aspects, through a logic circuit or executing code instructions.

[0056] In a sixth aspect, the present application provides a computer-readable storage medium storing a computer program or instruction. When the computer program or instruction is executed by a computer, the method as shown in any method in the first to second aspects, or any possible implementation of any aspect thereof, is implemented.

[0057] In a seventh aspect, the present application provides a computer program product. When a computer reads and executes the computer program product, the computer executes any method in the first to second aspects, or a method shown in any possible implementation of any aspect.

[0058] In an eighth aspect, the present application provides a chip system comprising an interface and at least one processor, the processor being used to read and execute instructions stored in a memory. When the instructions are executed, the chip executes a method as described in any one of the first aspect or the second aspect, or a method as shown in any possible implementation of any one of the aspects.

[0059] In a ninth aspect, the present application provides a communications system, which may include a satellite and a wireless access network device (or terrestrial network device). The satellite is configured to perform the method described in the first aspect or any possible implementation of the first aspect. The wireless access network device is configured to perform the method described in the second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] FIG1 is a schematic diagram of the architecture of a communication system used in an embodiment of the present application;

[0061] FIG2 is a flow chart of a communication method provided in an embodiment of the present application;

[0062] FIG3 is a schematic diagram of a coexistence scenario provided in an embodiment of the present application;

[0063] FIG4 is a schematic diagram of a non-coexistence scenario provided in an embodiment of the present application;

[0064] FIG5 is a schematic diagram of another non-coexistence scenario provided in an embodiment of the present application;

[0065] FIG6 is a schematic diagram of another non-coexistence scenario provided in an embodiment of the present application;

[0066] FIG7 is a schematic diagram of radio frequency requirements corresponding to satellites provided in an embodiment of the present application;

[0067] FIG8 is a schematic diagram of satellite corresponding radio frequency requirements and radiation requirements according to an embodiment of the present application;

[0068] FIG9 is another schematic diagram of the radio frequency requirements and radiation requirements corresponding to satellites provided in an embodiment of the present application;

[0069] FIG10 is another flow chart of a communication method according to an embodiment of the present application;

[0070] FIG11 is a schematic diagram of radio frequency requirements corresponding to ground network equipment provided in an embodiment of the present application;

[0071] FIG12 is a schematic diagram of radio frequency requirements and radiation requirements corresponding to ground network equipment provided in an embodiment of the present application;

[0072] FIG13 is another schematic diagram of radio frequency requirements and radiation requirements corresponding to ground network equipment provided in an embodiment of the present application;

[0073] FIG14 is a schematic structural diagram of a possible communication device provided in an embodiment of the present application;

[0074] FIG15 is a schematic structural diagram of a possible communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0076] In the description of this application, "first" and "second" etc. are only used to distinguish different objects, rather than to describe a specific order. In addition, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "plurality" means two or more. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c; a and b; a and c; b and c; or a and b and c. Among them, a, b, c can be single or multiple.

[0077] The terms "comprise," "include," "have," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

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

[0079] It can be understood that in this application, "when", "if" and "if" all mean that the device will perform corresponding processing under certain objective circumstances, and do not limit the time. It does not require that the device must perform a judgment action when it is implemented, nor does it mean that there are other limitations.

[0080] Elements used in the singular herein are intended to mean "one or more" rather than "one and only one" unless specifically stated otherwise.

[0081] It is understood that in each embodiment of the present application, "A corresponds to B" means that there is a corresponding relationship between A and B, and B can be determined according to A. Determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0082] To better understand the embodiments of the present application, the following first introduces the system architecture involved in the embodiments of the present application:

[0083] Please refer to Figure 1, which is a schematic diagram of the architecture of the communication system used in the embodiments of the present application. It should be noted that Figure 1 is a possible, non-limiting system schematic diagram. As shown in Figure 1, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 may also include the Internet 300. The RAN 100 includes at least one RAN node (such as 110a and 110b in Figure 1, collectively referred to as 110) and at least one terminal (such as 120a-120j in Figure 1, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment (not shown in Figure 1). The terminal 120 is connected to the RAN node 110 wirelessly. The RAN node 110 is connected to the core network 200 wirelessly or wiredly. The core network elements in the core network 200 and the RAN nodes 110 in the RAN 100 can be separate physical devices, or they can be a single physical device that integrates core network logical functions and radio access network logical functions. Alternatively, they can be a single physical device that integrates some core network element functions and some RAN node 110 functions. Terminals and RAN nodes 110 can be connected to each other via wired or wireless means. Figure 1 is merely a schematic diagram; the communication system may also include other network devices, such as wireless relay devices and wireless backhaul equipment, which are not shown in Figure 1.

[0084] The RAN 100 may be a cellular system related to the Third Generation Partnership Project (3GPP), such as a 4G or 5G mobile communication system, or a future-oriented evolutionary system. The RAN 100 may also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. The RAN 100 may also be a communication system that integrates two or more of the above systems.

[0085] RAN node 110, sometimes also referred to as radio access network equipment, access network equipment, RAN entity, or access node, constitutes part of a communication system and facilitates wireless access for terminals. Multiple RAN nodes 110 in the communication system 10 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative. For example, network element 120i in Figure 1 can be a helicopter or drone, which can be configured as a mobile base station. For terminal 120j accessing RAN 100 via network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes referred to as communication devices. For example, network elements 110a and 110b in Figure 1 can be understood as communication devices with base station functionality, and network elements 120a-120j can be understood as communication devices with terminal functionality.

[0086] In one possible scenario, the RAN node 110 may be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a WiFi system. The RAN node 110 may be a macro base station (such as 110a in FIG1 ), a micro base station or an indoor station (such as 110b in FIG1 ), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node 110 may also be a server, a wearable device, a vehicle or an onboard device. For example, the wireless access network device in the vehicle to everything (V2X) technology may be a road side unit (RSU). All or part of the functions of the RAN node 110 in the present application may also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform). The RAN node 110 in this application may also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node 110.

[0087] In another possible scenario, multiple RAN nodes 110 collaborate to assist the terminal in achieving wireless access, and different RAN nodes 110 respectively implement part of the functions of the base station. For example, the RAN node 110 can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately or included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0088] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0089] 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 may be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, drone, helicopter, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of the present application do not limit the device form of the terminal.

[0090] For ease of description, the following description uses a base station as an example of RAN node 110. Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0091] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with base station functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal functionality.

[0092] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized 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.

[0093] 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, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0094] In this application, a base station sends downlink signals or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection in the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the serving cell of the terminal. When the terminal communicates with the serving cell, it will also be interfered with by signals from neighboring cells.

[0095] 3GPP NR R17 began to discuss the issue of satellite-ground adjacent channel coexistence. The so-called satellite-ground adjacent channel coexistence means that when the service area of ​​the satellite overlaps with the service area of ​​the ground cellular network (such as ground network equipment), and the operating frequency band of the satellite is adjacent to the operating frequency band of the ground network equipment, the RF requirements of the transceiver are constrained to limit the interference of adjacent channels, so that the throughput performance of the satellite and ground network equipment is within an acceptable range.

[0096] The satellite capabilities currently considered in the standard are relatively weak, and the adjacent channel coexistence RF requirements for NTN satellite access nodes (SANs) and NTN UEs are no higher than those for TN base stations (TN BSs) and TN UEs, and can be relaxed appropriately depending on the scenario. However, with the emergence of high-throughput satellites, these satellites have significantly improved transmission capabilities compared to the satellite parameters considered in the current standard. Therefore, the introduction of high-throughput satellites may significantly change the conclusions of existing coexistence scenarios, significantly increasing the RF requirements for the transceiver, especially the ACLR requirements for high-throughput satellites, which may even exceed the ACLR requirements for TN base stations or exceed the acceptable range for products. In areas without terrestrial network coverage, strict ACLR constraints based on coexistence requirements are not required. The current approach of using more stringent ACLR requirements to meet interference limitations in coexistence scenarios in areas where NTN and TN coverage overlap will significantly increase hardware costs and may even make products unfeasible.

[0097] Based on this, the present application proposes a communication method that defines multiple satellite capability levels and the radio frequency requirements (radio frequency requirements) and / or radiation requirements (radiated requirements) corresponding to each satellite capability level, so that it can better adapt to various satellite-ground coexistence scenarios, which is conducive to improving communication performance.

[0098] The communication method and communication device provided by this application are described in detail below:

[0099] Please refer to Figure 2, which is a flow chart of a communication method provided by an embodiment of the present application. As shown in Figure 2, the communication method may include the following steps S201 to S202. The execution subject of the method shown in Figure 2 may be a satellite. Alternatively, the execution subject of the method shown in Figure 2 may also be a chip in a satellite. For the convenience of description, this application is mainly explained with the satellite as the execution subject. It should be understood that Figure 2 is a schematic flow chart of an embodiment of the method of the present application, which shows the detailed communication steps or operations of the method, but these steps or operations are only examples. The embodiment of the present application may also perform other operations or variations of the various operations in Figure 2. In addition, the various steps in Figure 2 may be performed in an order different from that presented in Figure 2, and it may not be necessary to perform all the operations in Figure 2. Among them:

[0100] S201: A satellite obtains a first radio frequency requirement corresponding to the satellite.

[0101] In some feasible implementations, a ground gateway may determine the RF requirements that a satellite should use. Therefore, the satellite obtaining the first RF requirement corresponding to the satellite can be understood as follows: the ground gateway determines the first RF requirement corresponding to the satellite and sends first indication information to the satellite. In response, the satellite receives the first indication information, which indicates the first RF requirement corresponding to the satellite. Optionally, the first indication information may also indicate information such as the first radiation requirement corresponding to the satellite, a beam identifier, and a beam coverage range.

[0102] In some feasible implementations, the satellite may also determine the RF requirements that the satellite should use. Therefore, one implementation of the satellite obtaining the first RF requirements corresponding to the satellite may be: the satellite determines the first RF requirements based on the satellite's satellite capability level and a first correspondence. Here, the first correspondence is the correspondence between the satellite capability level and the RF requirements. This first correspondence may be predefined, preconfigured, or configured. One satellite capability level may correspond to one or more sets of RF requirements, and one set of RF requirements may generally correspond to one satellite capability level. Alternatively, another implementation of the satellite obtaining the first RF requirements corresponding to the satellite may be: the satellite determines the first RF requirements based on the satellite capability level and the regional type of the satellite's service area. Specifically, determining the first RF requirements based on the satellite capability level and the regional type of the satellite's service area may be understood as: the satellite determines the first RF requirements based on the satellite capability level, the regional type of the satellite's service area, and a second correspondence. Here, the second correspondence is the correspondence between the satellite capability level, the regional type, and the RF requirements. In other words, the RF requirements are related to the satellite capability level and the regional type. This second correspondence may be predefined, preconfigured, or configured, without limitation.

[0103] Optionally, in addition to deciding the radiation requirements to be used, the satellite can also decide the radiation requirements it needs to use (hereinafter the radiation requirements corresponding to the satellite will be referred to as the first radiation requirements). Specifically, the satellite can determine the first radiation requirement based on the satellite capability level of the satellite and the third corresponding relationship. The third corresponding relationship here is the corresponding relationship between the satellite capability level and the radiation requirement, where one satellite capability level can correspond to one or more sets of radiation requirements, and a set of radiation requirements usually corresponds to one satellite capability level. Alternatively, the satellite can also determine the first radiation requirement based on the satellite capability level of the satellite and the regional type of the satellite's service area. Specifically, the above-mentioned determination of the first radiation requirement based on the satellite capability level of the satellite and the regional type of the satellite's service area can be understood as: the satellite determines the first radiation requirement based on the satellite capability level of the satellite, the regional type of the satellite's service area, and the fourth corresponding relationship. The fourth corresponding relationship here is the corresponding relationship between the satellite capability level, the regional type and the radiation requirement, that is, the radiation requirement is related to the satellite capability level and the regional type.

[0104] The area type includes a coexistence type and a non-coexistence type. Generally speaking, when the service area of ​​the satellite overlaps with the service area of ​​the ground network device, and the interval between the working frequency band of the satellite and the working frequency band of the ground network device is less than or equal to the first threshold value, or the working frequency band of the satellite overlaps with the working frequency band of the ground network device, the area type of the satellite's service area is a coexistence type. When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold value, the area type of the satellite's service area is a non-coexistence type. For example, please refer to Figure 3, which is a schematic diagram of a coexistence scenario provided by an embodiment of the present application. As shown in Figure 3, it is assumed that the working frequency band of the ground network device is (a1, a2) and the working frequency band of the satellite is (a3, a4). In the coexistence scenario, the interval between the working frequency band of the satellite and the working frequency band of the ground network device is less than or equal to the first threshold value (as shown in (1) in Figure 3) or the working frequency band of the satellite overlaps with the working frequency band of the ground network device (as shown in (2) in Figure 3), and the service area of ​​the satellite overlaps with the service area of ​​the ground network device. Figures 4, 5, and 6 show schematic diagrams of three non-coexistence scenarios. In a non-coexistence scenario, the satellite's service area does not overlap with the terrestrial network equipment's service area, or the interval between the satellite's operating frequency band and the terrestrial network equipment's operating frequency band is greater than a first threshold.

[0105] Optionally, when the satellite autonomously decides on the radio frequency requirements that the satellite should use, and when the radio frequency requirements are related to the satellite capability level and regional type, the ground network device can indicate to the satellite the regional type of the satellite's current service area. Specifically, the satellite can send the satellite's operating frequency band to the ground network device (optionally, the satellite can also send information about the satellite's service area to the ground network device). Accordingly, when the ground network device receives the satellite's operating frequency band, the ground network device can determine the regional type information based on the satellite's operating frequency band and service area, as well as the ground network device's own operating frequency band and service area, and feedback the regional type information to the satellite. The regional type information is used to indicate the regional type of the satellite's service area.

[0106] Alternatively, the satellite itself may determine the regional type of its current service area. Specifically, the ground network device may transmit its operating frequency band to the satellite (optionally, the ground network device may also transmit information about its service area to the satellite). Accordingly, upon receiving the operating frequency band of the ground network device, the satellite may determine the regional type of its service area based on the operating frequency band and service area of ​​the ground network device, as well as the satellite's own operating frequency band and service area.

[0107] It should be understood that the first RF requirement is the RF requirement corresponding to the satellite capability level of the satellite, and this first RF requirement is one of multiple sets of RF requirements. Generally speaking, one satellite corresponds to one satellite capability level, and different satellite capability levels correspond to different RF requirements, or it can be understood that each set of RF requirements corresponds to one satellite capability level. The RF requirements may include one or more of ACLR, ACS, etc. For ease of description, the following explanation mainly uses the example of RF requirements including ACLR and ACS.

[0108] The RF requirements corresponding to the above-mentioned different satellite capability levels can be specifically understood as completely different RF requirements corresponding to different satellite capability levels, or partially different RF requirements corresponding to different satellite capability levels. For example, assuming that the satellite capability levels include a first satellite capability level and a second satellite capability level, the first satellite capability level corresponds to ACLR1 and ACS1, and the second satellite capability level corresponds to ACLR2 and ACS2. At least one of ACLR1 and ACLR2, or ACS1 and ACS2, is different. In other words, the different RF requirements corresponding to different satellite capability levels may be any of the following three situations: ① ACLR1 ≠ ACLR2, ACS1 = ACS2; ② ACLR1 = ACLR2, ACS1 ≠ ACS2; ③ ACLR1 ≠ ACLR2, ACS1 ≠ ACS2.

[0109] Optionally, the first satellite capability level mentioned above may be a high capability level, and the second satellite capability level may be a low capability level. For example, a satellite that can only provide low-throughput services such as basic voice and text messaging is a low-capability satellite, including satellites configured in set 1 and set 2 in existing standards. For example, the EIRP density of set 1 satellites can reach 34dBw / MHz, and the EIRP density of set 2 satellites can reach 28dBw / MHz. Correspondingly, a satellite that can provide high-throughput services such as high-definition video is a high-capability satellite. For example, the EIRP density of a satellite providing high-throughput services can currently reach 51dBw / MHz or 46.8dBw / MHz, without limitation. In other words, different satellite capability levels can be defined based on the satellite's launch capability or the type of service that the satellite can provide.

[0110] Similarly, the first radiation requirement is the radiation requirement corresponding to the satellite's satellite capability level, and this first radiation requirement is one of multiple sets of radiation requirements. Generally speaking, different satellite capability levels correspond to different radiation requirements, or it can be understood that each set of radiation requirements corresponds to a satellite capability level. The radiation requirement may include one or more of EIRP, EIRP density, etc. For ease of description, the following description mainly uses the radiation requirement of EIRP density as an example for schematic explanation.

[0111] For example, see Figure 7, which is a schematic diagram of the RF requirements corresponding to satellites provided in an embodiment of the present application. As shown in Figure 7, taking the example of satellite capability levels including a first satellite capability level and a second satellite capability level, and RF requirements including ACLR and ACS, for satellites of the first satellite capability level, the ACLR and ACS values ​​corresponding to satellites of the second satellite capability level are V1 and U1, respectively, and the ACLR and ACS values ​​corresponding to satellites of the second satellite capability level are V2 and U2, respectively. At least one of V1 ≠ V2 and U1 ≠ U2 is satisfied.

[0112] As another example, please refer to Figure 8, which is a schematic diagram of the RF requirements and radiation requirements corresponding to the satellite provided in an embodiment of the present application. As shown in Figure 8, assuming that the first satellite capability level is higher than the second satellite capability level, for a satellite, when the satellite capability level is the first satellite capability level, the satellite's index requirements can be constrained by coupling the RF requirements and the radiation requirements. Specifically, the values ​​of ACLR, ACS, and EIRP density corresponding to satellites of the first satellite capability level are V1, U1, and W1, respectively, and the values ​​of ACLR and ACS corresponding to satellites of the second satellite capability level are V2 and U2, respectively. Among them, at least one of V1≠V2 and U1≠U2 is satisfied.

[0113] As another example, please refer to Figure 9, which is another schematic diagram of the RF requirements and radiation requirements corresponding to satellites provided in an embodiment of the present application. As shown in Figure 9, in addition to defining multiple satellite capability levels, multiple area types are also defined, and different RF requirements or RF requirements and radiation requirements are defined according to the satellite capability level and area type. Taking the definition of two area types as an example, one area type is a coexistence type and the other area type is a non-coexistence type. When the satellite capability level of a satellite is the first satellite capability level and is in an area of ​​the coexistence type, for the satellite, it is necessary to adopt the coupling constraint of the RF requirements and the radiation requirements. Specifically, when the satellite capability level of the satellite is the first satellite capability level and is in a coexistence type area, the corresponding satellite's ACLR, ACS and EIRP density values ​​are V11, U11 and W11 respectively; when the satellite capability level of the satellite is the first satellite capability level and is in a non-coexistence type area, the corresponding satellite's ACLR and ACS values ​​are V12 and U12 respectively; when the satellite capability level of the satellite is the second satellite capability level and is in a coexistence type area, the corresponding satellite's ACLR and ACS values ​​are V21 and U21 respectively; when the satellite capability level of the satellite is the second satellite capability level and is in a non-coexistence type area, the corresponding satellite's ACLR and ACS values ​​are V22 and U22 respectively.

[0114] Optionally, for the same satellite capability level, subcategories can be defined within that level, each with different RF requirements. For example, taking the first satellite capability level as an example, based on satellite ephemeris information, such as the satellite's orbital altitude and communication elevation angle, the first satellite capability level is further divided into first satellite capability level 1 and first satellite capability level 2. First satellite capability level 1 corresponds to ACLR1-1 and ACS1-1, while first satellite capability level 2 corresponds to ACLR1-2 and ACS1-2.

[0115] It should be understood that a satellite capability level may correspond to one or more sets of RF requirements. When the satellite capability level corresponding to the satellite corresponds to multiple sets of RF requirements, the multiple sets of RF requirements include a first RF requirement, which is related to the satellite's operating time and / or the satellite's transmit beam.

[0116] S202: The satellite communicates based on a first radio frequency requirement.

[0117] In some feasible implementations, a satellite may communicate with a communication device based on the first radio frequency requirement, or the satellite may communicate with the communication device based on the first radio frequency requirement and the first radiation requirement. For example, the satellite may communicate with a terminal, or may communicate with a ground gateway or ground network equipment, etc., which is not limited in this application. For the satellite, the satellite needs to use communication parameters greater than or equal to the first radio frequency requirement for communication, and / or communication parameters less than or equal to the first radiation requirement for communication.

[0118] In an embodiment of the present application, different radio frequency requirements or different radio frequency requirements and radiation requirements are defined for satellites of different satellite capability levels, which can better adapt to various satellite-ground coexistence scenarios. Specifically, the communication parameters of the satellite are constrained in the form of coupled radio frequency requirements and radiation requirements, which can be more adapted to the characteristics of high-capability satellites, taking into account hardware costs, product capabilities and coexistence scenario requirements; for low-capability satellites, radio frequency requirements can be used for constraints. In addition, multiple satellite capability levels and regional types can be defined in the standard, and multiple sets of radio frequency requirements or radio frequency requirements and radiation requirements can be defined based on the satellite capability levels and regional types. Specifically, high-capability satellites are allowed to adopt greater radio frequency requirements and more relaxed radiation requirements in non-coexistence areas, so that the satellite can provide better service quality, while more stringent radio frequency requirements and radiation requirements are needed in coexistence areas to ensure the system capability of the coexistence scenario, which is more adapted to the characteristics of high-capability satellites and geographical areas; for low-capability satellites, different radio frequency requirements can be used for constraints in coexistence areas and non-coexistence areas.

[0119] Please refer to Figure 10, which is another flow chart of the communication method provided by an embodiment of the present application. As shown in Figure 10, the communication method may include the following steps S1001 to S1002. The execution subject of the method shown in Figure 10 may be a ground network device. Alternatively, the execution subject of the method shown in Figure 10 may also be a chip in a ground network device. For the convenience of description, this application is mainly explained with the ground network device as the execution subject. It should be understood that Figure 10 is a schematic flow chart of an embodiment of the method of the present application, which shows the detailed communication steps or operations of the method, but these steps or operations are only examples. The embodiment of the present application can also perform other operations or variations of the various operations in Figure 10. In addition, the various steps in Figure 10 can be executed in a different order from that presented in Figure 10, and it may not be necessary to execute all the operations in Figure 10. Among them:

[0120] S1001. The ground network device obtains a second radiation requirement corresponding to the ground network device.

[0121] It should be understood that for ground network equipment, different radiation requirements and / or different radio frequency requirements can be defined. Specifically, the ground network equipment can determine the regional type of the service area of ​​the ground network equipment based on the obtained working frequency band and service area of ​​the satellite, as well as the working frequency band and service area of ​​the ground network equipment. If the regional type is a coexistence type, the ground network equipment can determine the radiation requirements corresponding to the ground network equipment based on the obtained satellite capability level (hereinafter referred to as the radiation requirements corresponding to the ground network equipment as the second radiation requirements). If the regional type is a non-coexistence type, the radiation requirements corresponding to the ground network equipment are not related to the satellite capability level. Generally speaking, when the service area of ​​the satellite overlaps with the service area of ​​the ground network equipment, and the interval between the working frequency band of the satellite and the working frequency band of the ground network equipment is less than or equal to the first threshold, or the working frequency band of the satellite overlaps with the working frequency band of the ground network equipment, the area type of the service area of ​​the ground network equipment is a coexistence type (or the ground network equipment and the satellite have a coexistence relationship); when the service area of ​​the satellite does not overlap with the service area of ​​the ground network equipment, or the interval between the working frequency band of the satellite and the working frequency band of the ground network equipment is greater than the first threshold, the area type of the service area of ​​the ground network equipment is a non-coexistence type (or the ground network equipment and the satellite do not have a coexistence relationship).

[0122] Optionally, in addition to determining the second radiation requirement it needs to use, the ground network equipment can also determine the radio frequency requirement it needs to use (for ease of description, the radio frequency requirement corresponding to the ground network equipment is hereinafter referred to as the second radio frequency requirement). The second radio frequency requirement is the radio frequency requirement corresponding to the satellite capability level of the satellite, and the second radio frequency requirement is one of multiple sets of radio frequency requirements, each set of radio frequency requirements corresponding to a satellite capability level.

[0123] For example, please refer to Figure 11, which is a schematic diagram of the radio frequency requirements corresponding to the ground network equipment provided in an embodiment of the present application. As shown in Figure 11, taking the satellite capability level including the first satellite capability level and the second satellite capability level, and the radio frequency requirements including ACLR and ACS as an example, for the ground network equipment, when it coexists with a satellite of the first satellite capability level, the corresponding ACLR and ACS values ​​of the ground network equipment are X1 and Y1 respectively. When it coexists with a satellite of the second satellite capability level, the corresponding ACLR and ACS values ​​of the ground network equipment are X2 and Y2 respectively. Among them, at least one of X1≠X2 and Y1≠Y2 is satisfied.

[0124] As another example, please refer to Figure 12, which is a schematic diagram of the radio frequency requirements and radiation requirements corresponding to the ground network equipment provided in an embodiment of the present application. As shown in Figure 12, assuming that the first satellite capability level is higher than the second satellite capability level, for the ground network equipment, when the ground network equipment coexists with the satellite of the first satellite capability level, the index requirements of the ground network equipment can be constrained in the form of coupling the radio frequency requirements and the radiation requirements. Specifically, when the ground network equipment coexists with the satellite of the first satellite capability level, the values ​​of the ACLR, ACS and EIRP density of the corresponding ground network equipment are X1, Y1 and Z1 respectively. When the ground network equipment coexists with the satellite of the second satellite capability level, the values ​​of the ACLR and ACS of the corresponding ground network equipment are X2 and Y2 respectively. Among them, at least one of X1≠X2 and Y1≠Y2 is satisfied.

[0125] As another example, please refer to Figure 13, which is another schematic diagram of the RF and radiation requirements corresponding to ground network equipment provided in an embodiment of the present application. As shown in Figure 13, in addition to defining multiple satellite capability levels, multiple area types are also defined, and different RF requirements or RF and radiation requirements are defined according to the satellite capability level and area type. Taking the definition of two area types as an example, one area type is a coexistence type, and the other area type is a non-coexistence type. When the satellite's satellite capability level is the first satellite capability level and it is in an area of ​​the coexistence type, for the ground network equipment, it is necessary to adopt the coupled constraints of RF requirements and radiation requirements. Specifically, when the satellite's satellite capability level is the first satellite capability level and it is in an area of ​​the coexistence type, the corresponding ACLR, ACS, and EIRP density values ​​of the ground network equipment are X11, Y11, and Z11 respectively; when the satellite's satellite capability level is the second satellite capability level and it is in an area of ​​the coexistence type, the corresponding ACLR and ACS values ​​of the ground network equipment are X21 and Y21 respectively; when it is in an area of ​​the non-coexistence type, the corresponding ACLR and ACS values ​​of the ground network equipment are X3 and Y3 respectively.

[0126] Optionally, for the same satellite capability level, subcategories under the level may be defined, and different radio frequency requirements may be defined for each subcategory.

[0127] Optionally, information such as the satellite's operating frequency band, the satellite's service area, and the satellite's satellite capability level may come from the satellite or a ground gateway, etc., and this application does not limit this.

[0128] S1002. The ground network device communicates based on the second radiation requirement.

[0129] In a coexistence scenario, the ground network device may communicate with the communication device based on the second radiation requirement, or the ground network device may communicate with the communication device based on the second radio frequency requirement and the second radiation requirement. For example, the communication may be with a terminal, or with a ground gateway or ground network device, etc. This application is not limited to this. For the ground network device, the ground network device needs to use communication parameters greater than or equal to the second radio frequency requirement for communication, and / or communication parameters less than or equal to the second radiation requirement for communication.

[0130] In an embodiment of the present application, for ground network equipment, the ground network equipment can also select corresponding radio frequency requirements and radiation requirements for constraints based on the satellite capability level and geographical area type, so that the coexistence requirements can be met through constraints in the coexistence scenario.

[0131] The communication device provided in this application will be described in detail below with reference to FIG. 14 and FIG. 15 .

[0132] It is understood that in order to implement the functions in the above embodiments, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be readily apparent to those skilled in the art that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present 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 manner driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0133] Figures 14 and 15 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 satellite or wireless access network equipment (or terrestrial network equipment, such as a base station) in the above-mentioned method embodiments, thereby also achieving the beneficial effects of the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be a satellite or wireless access network equipment, or it can also be a module (such as a chip) applied to a satellite or wireless access network equipment.

[0134] As shown in Figure 14, the communication device 1400 includes a processing unit 1410 and a transceiver unit 1420. The communication device 1400 is used to implement the functions of the satellite or wireless access network device in the method embodiment shown in Figure 2 or Figure 10 above.

[0135] When the communication device 1400 is used to implement the function of the satellite in the method embodiment shown in FIG2 :

[0136] The processing unit 1410 is used to obtain a first radio frequency requirement corresponding to the satellite, where the first radio frequency requirement is a radio frequency requirement corresponding to the satellite capability level of the satellite, and the first radio frequency requirement is one set of multiple sets of radio frequency requirements, each set of radio frequency requirements corresponding to a satellite capability level; the transceiver unit 1420 is used to communicate based on the first radio frequency requirement.

[0137] In a possible implementation, when obtaining the first radio frequency requirement corresponding to the satellite, the processing unit 1410 is configured to:

[0138] First indication information is received through the transceiver unit 1420, where the first indication information indicates the first radio frequency requirement corresponding to the satellite.

[0139] In a possible implementation, when obtaining the first radio frequency requirement corresponding to the satellite, the processing unit 1410 is configured to:

[0140] The first radio frequency requirement is determined according to the satellite capability level of the satellite and a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the satellite capability level and the radio frequency requirement.

[0141] In a possible implementation, when obtaining the first radio frequency requirement corresponding to the satellite, the processing unit 1410 is configured to:

[0142] The first radio frequency requirement is determined according to a satellite capability level of the satellite and an area type of a service area of ​​the satellite.

[0143] In a possible implementation, when determining the first radio frequency requirement according to the satellite capability level of the satellite and the area type of the service area of ​​the satellite, the processing unit 1410 is configured to:

[0144] The first radio frequency requirement is determined according to the satellite capability level of the satellite, the regional type of the service area of ​​the satellite, and a second corresponding relationship, where the second corresponding relationship is the corresponding relationship between the satellite capability level, the regional type and the radio frequency requirement.

[0145] In a possible implementation, the area type includes a coexistence type and a non-coexistence type; wherein:

[0146] When the service area of ​​the satellite overlaps with the service area of ​​the terrestrial network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the terrestrial network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the terrestrial network device, the area type of the service area of ​​the satellite is a coexistence type;

[0147] When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold, the area type of the service area of ​​the satellite is a non-coexistence type.

[0148] In a possible implementation, the transceiver unit 1420 is further configured to:

[0149] Region type information is received, where the region type information is used to indicate a region type of a service area of ​​the satellite.

[0150] In a possible implementation, the transceiver unit 1420 is further configured to:

[0151] An operating frequency band of the satellite is sent, where the operating frequency band of the satellite is used to determine the area type information.

[0152] In one possible implementation, the radio frequency requirements include one or more of the following:

[0153] Adjacent Channel Leakage Ratio ACLR, or Adjacent Channel Selectivity ACS.

[0154] In a possible implementation, when communicating based on the first radio frequency requirement, the transceiver unit 1420 is configured to:

[0155] Communication is performed based on the first radio frequency requirement and a first radiation requirement corresponding to the satellite, where the first radiation requirement is one of a plurality of sets of radiation requirements, each set of radio frequency requirements corresponding to a satellite capability level.

[0156] In a possible implementation, the radiation requirement includes effective isotropic radiated power EIRP, or EIRP density.

[0157] In one possible implementation, the satellite corresponds to multiple sets of radio frequency requirements and / or multiple sets of radiation requirements, the multiple sets of radio frequency requirements include the first radio frequency requirement, the multiple sets of radiation requirements include the first radiation requirement, and the first radio frequency requirement and the first radiation requirement are related to the operating time of the satellite and / or the transmission beam of the satellite.

[0158] When the communication device 1400 is used to implement the functions of the wireless access network device in the method embodiment shown in FIG10 :

[0159] Processing unit 1410 is used to obtain a second radiation requirement corresponding to a ground network device, where the second radiation requirement is determined based on a satellite capability level of a satellite that coexists with the ground network device. The second radiation requirement is one of multiple sets of radiation requirements, each set of radiation requirements corresponds to a satellite capability level, the service area of ​​the satellite overlaps with the service area of ​​the ground network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the ground network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the ground network device; transceiver unit 1420 is used to communicate based on the second radiation requirement.

[0160] In a possible implementation, when obtaining the second radiation requirement corresponding to the ground network device, the processing unit 1410 is configured to:

[0161] The second radiation requirement corresponding to the ground network equipment is determined according to the satellite capability level of the satellite.

[0162] In a possible implementation, the transceiver unit 1420 is further configured to:

[0163] A satellite capability level of the satellite is received.

[0164] In a possible implementation, the transceiver unit 1420 is further configured to:

[0165] receiving a working frequency band of the satellite;

[0166] Sending area type information, where the area type information is used to indicate the area type of the service area of ​​the satellite, and the area type information is determined based on the working frequency band of the satellite.

[0167] In a possible implementation, the area type includes a coexistence type and a non-coexistence type; wherein:

[0168] When the service area of ​​the satellite overlaps with the service area of ​​the terrestrial network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the terrestrial network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the terrestrial network device, the area type of the service area of ​​the satellite is a coexistence type;

[0169] When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold, the area type of the service area of ​​the satellite is a non-coexistence type.

[0170] In a possible implementation, when communicating based on the second radiation requirement, the transceiver unit 1420 is configured to:

[0171] Communication is performed based on the second radiation requirement and the second radio frequency requirement corresponding to the ground network equipment, the second radio frequency requirement is the radio frequency requirement corresponding to the satellite capability level of the satellite, the second radio frequency requirement is one set of multiple sets of radio frequency requirements, and each set of radio frequency requirements corresponds to a satellite capability level.

[0172] In a possible implementation, the radiation requirement includes effective isotropic radiated power EIRP, or EIRP density.

[0173] In one possible implementation, the radiation requirement includes one or more of the following:

[0174] Adjacent Channel Leakage Ratio ACLR, or Adjacent Channel Selectivity ACS.

[0175] For a more detailed description of the processing unit 1410 and the transceiver unit 1420 , reference may be made to the relevant description in the method embodiment shown in FIG. 2 or FIG. 10 .

[0176] As shown in Figure 15, communication device 1500 includes a processor 1510 and an interface circuit 1520. Processor 1510 and interface circuit 1520 are coupled to each other. It is understood that interface circuit 1520 can be a transceiver or an input / output interface. Optionally, communication device 1500 may also include a memory 1530 for storing instructions executed by processor 1510, input data required by processor 1510 to execute instructions, or data generated by processor 1510 after executing instructions.

[0177] When the communication device 1500 is used to implement the method shown in FIG. 2 or FIG. 10 , the processor 1510 is used to implement the functions of the processing unit 1410 , and the interface circuit 1520 is used to implement the functions of the transceiver unit 1420 .

[0178] When the communication device is a chip used in a satellite, the satellite chip implements the satellite functions described in the method embodiments. The satellite chip receives information sent to the satellite by a wireless access network device via other modules in the satellite (e.g., a radio frequency module or antenna); alternatively, the satellite chip transmits information sent by the satellite to the wireless access network device to other modules in the satellite (e.g., a radio frequency module or antenna).

[0179] When the above-mentioned communication device is a module applied to a wireless access network device, the wireless access network device module implements the functions of the wireless access network device in the above-mentioned method embodiment. The wireless access network device module receives information from other modules in the wireless access network device (such as a radio frequency module or an antenna), and the information is sent by a satellite to the wireless access network device; or the wireless access network device module sends information to other modules in the wireless access network device (such as a radio frequency module or an antenna), and the information is sent by the wireless access network device to a satellite. The wireless access network device module here can be a baseband chip of the wireless access network device, or a CU, DU or other module, or a device under the open radio access network (O-RAN) architecture, such as an open CU, open DU, and other devices.

[0180] 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.

[0181] 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 wireless access network device or a satellite. The processor and storage medium can also exist as discrete components in a wireless access network device or a satellite.

[0182] 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.

[0183] In the various embodiments of the present application, unless otherwise specified or there is any logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0184] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that: include: Obtain a first radio frequency requirement corresponding to a satellite, where the first radio frequency requirement is a radio frequency requirement corresponding to a satellite capability level of the satellite, and the first radio frequency requirement is one of multiple sets of radio frequency requirements, each set of radio frequency requirements corresponding to a satellite capability level; Communicate based on the first radio frequency requirement.

2. The method according to claim 1, characterized in that The obtaining of the first radio frequency requirement corresponding to the satellite includes: First indication information is received, where the first indication information indicates the first radio frequency requirement corresponding to the satellite.

3. The method according to claim 1, characterized in that The obtaining of the first radio frequency requirement corresponding to the satellite includes: The first radio frequency requirement is determined according to the satellite capability level of the satellite and a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the satellite capability level and the radio frequency requirement.

4. The method according to claim 1, wherein The obtaining of the first radio frequency requirement corresponding to the satellite includes: The first radio frequency requirement is determined according to a satellite capability level of the satellite and an area type of a service area of ​​the satellite.

5. The method according to claim 4, characterized in that The determining the first radio frequency requirement according to the satellite capability level of the satellite and the area type of the service area of ​​the satellite includes: The first radio frequency requirement is determined according to the satellite capability level of the satellite, the regional type of the service area of ​​the satellite, and a second corresponding relationship, where the second corresponding relationship is the corresponding relationship between the satellite capability level, the regional type and the radio frequency requirement.

6. The method according to claim 4 or 5, characterized in that The area types include coexistence type and non-coexistence type; wherein: When the service area of ​​the satellite overlaps with the service area of ​​the terrestrial network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the terrestrial network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the terrestrial network device, the area type of the service area of ​​the satellite is a coexistence type; When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold, the area type of the service area of ​​the satellite is a non-coexistence type.

7. The method according to any one of claims 4 to 6, characterized in that The method further comprises: Region type information is received, where the region type information is used to indicate a region type of a service area of ​​the satellite.

8. The method according to claim 7, characterized in that The method further comprises: An operating frequency band of the satellite is sent, where the operating frequency band of the satellite is used to determine the area type information.

9. The method according to any one of claims 1 to 8, characterized in that The radio frequency requirements include one or more of the following: Adjacent Channel Leakage Ratio ACLR, or Adjacent Channel Selectivity ACS.

10. The method according to any one of claims 1 to 8, characterized in that The communicating based on the first radio frequency requirement includes: Communication is performed based on the first radio frequency requirement and a first radiation requirement corresponding to the satellite, where the first radiation requirement is one of a plurality of sets of radiation requirements, each set of radio frequency requirements corresponding to a satellite capability level.

11. The method according to claim 10, characterized in that The radiation requirements include effective isotropic radiated power (EIRP), or EIRP density.

12. The method according to claim 10 or 11, characterized in that The satellite corresponds to multiple sets of radio frequency requirements and / or multiple sets of radiation requirements, the multiple sets of radio frequency requirements include the first radio frequency requirement, the multiple sets of radiation requirements include the first radiation requirement, and the first radio frequency requirement and the first radiation requirement are related to the operating time of the satellite and / or the transmission beam of the satellite.

13. A communication method, characterized in that: include: Obtaining a second radiation requirement corresponding to a terrestrial network device, where the second radiation requirement is determined based on a satellite capability level of a satellite that coexists with the terrestrial network device, the second radiation requirement being one of multiple sets of radiation requirements, each set of radiation requirements corresponding to a satellite capability level, a service area of ​​the satellite overlapping with a service area of ​​the terrestrial network device, and an interval between an operating frequency band of the satellite and an operating frequency band of the terrestrial network device being less than or equal to a first threshold, or the operating frequency band of the satellite overlapping with the operating frequency band of the terrestrial network device; Communicating is performed based on the second radiation requirement.

14. The method according to claim 13, characterized in that The obtaining of the second radiation requirement corresponding to the ground network device includes: The second radiation requirement corresponding to the ground network equipment is determined according to the satellite capability level of the satellite.

15. The method according to claim 14, characterized in that The method further comprises: A satellite capability level of the satellite is received.

16. The method according to any one of claims 13 to 15, characterized in that: The method further comprises: receiving a working frequency band of the satellite; Sending area type information, where the area type information is used to indicate the area type of the service area of ​​the satellite, and the area type information is determined based on the working frequency band of the satellite.

17. The method according to claim 16, characterized in that The area types include coexistence type and non-coexistence type; wherein: When the service area of ​​the satellite overlaps with the service area of ​​the terrestrial network device, and the interval between the operating frequency band of the satellite and the operating frequency band of the terrestrial network device is less than or equal to a first threshold, or the operating frequency band of the satellite overlaps with the operating frequency band of the terrestrial network device, the area type of the service area of ​​the satellite is a coexistence type; When the service area of ​​the satellite does not overlap with the service area of ​​the ground network device, or the interval between the working frequency band of the satellite and the working frequency band of the ground network device is greater than the first threshold, the area type of the service area of ​​the satellite is a non-coexistence type.

18. The method according to any one of claims 13 to 17, characterized in that: The communicating based on the second radiation requirement includes: Communication is performed based on the second radiation requirement and the second radio frequency requirement corresponding to the ground network equipment, the second radio frequency requirement is the radio frequency requirement corresponding to the satellite capability level of the satellite, the second radio frequency requirement is one set of multiple sets of radio frequency requirements, and each set of radio frequency requirements corresponds to a satellite capability level.

19. The method according to claim 18, characterized in that The radiation requirements include effective isotropic radiated power (EIRP), or EIRP density.

20. The method according to any one of claims 13 to 19, characterized in that: The radiation requirements include one or more of the following: Adjacent Channel Leakage Ratio ACLR, or Adjacent Channel Selectivity ACS.

21. A communication device, characterized in that: The method comprises a unit or module for executing the method according to any one of claims 1 to 12, or comprises a unit or module for executing the method according to any one of claims 13 to 20.

22. A communication device, characterized in that: The device comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method according to any one of claims 1 to 12 through a logic circuit or by executing code instructions, or to implement the method according to any one of claims 13 to 20.

23. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 12 is implemented, or the method according to any one of claims 13 to 20 is implemented.

24. A computer program product, characterized in that The method comprises a computer program code, and when the computer program code is run on a computer, the method is implemented as claimed in any one of claims 1 to 12, or the method is implemented as claimed in any one of claims 13 to 20.

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