Communication method and related device

Abstract

A communication method and related apparatus, in which a first communication apparatus transmits an NTN signal having a signal power lower than or equal to a threshold within a specific angle range based on an indication of first information. Generally, in an NTN scene, due to the fact that the distance between different communication devices is long, signal path loss is large and the like, NTN signals may need large transmission power. In the scheme, the first information received by the first communication device can limit the transmission power of the NTN signal sent by the first communication device. In this way, the signal power of the NTN signal sent by the first communication device within the specified angle range will be lower than or equal to the threshold specified by the first information. The interference of the NTN signal on signal transmission of other systems (such as a radio telescope system and other communication systems except the NTN system to which the first communication device belongs) within the specified angle range can be reduced or reduced, so that the signal transmission performance of the other systems is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular, to a communication method and related apparatus. BACKGROUND

[0002] Wireless communication can be transmission communication between two or more communication devices through electromagnetic wave propagation. The communication devices generally include network devices and terminal devices. Traditional network devices can be devices fixed on the ground, such as ground base stations in a terrestrial network (TN).

[0003] With the development of communication technology, network devices can not be fixed on the ground. For example, the network devices can be high-speed mobile devices in a non-terrestrial network (NTN), including but not limited to unmanned aerial vehicles, high-altitude platforms, and satellite devices such as low-orbit satellites, medium-orbit satellites, and high-orbit satellites.

[0004] However, in the NTN scenario, due to the long distance between different communication devices, the NTN signals transmitted by the communication devices will inevitably interfere with other systems (such as radio telescope systems, other communication systems outside the NTN system to which the communication devices belong, etc.) during long-distance transmission. SUMMARY

[0005] The present application provides a communication method and related apparatus for reducing signal interference.

[0006] The first aspect of the present application provides a communication method. The method is applied to a first communication apparatus, for example, the method is executed by the first communication apparatus. The first communication apparatus can be a communication device (such as a terminal device or a network device, etc.), or the first communication apparatus can be a part of the communication device (such as a circuit or a chip responsible for communication functions (such as a Modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), etc.), or the first communication apparatus can also be a logic module or software that can realize all or part of the functions of the communication device. In the method, the first communication apparatus receives first information, the first information is used to indicate a threshold of a transmission power of an NTN signal transmitted by the first communication apparatus in a first angle range; and the first communication apparatus transmits the NTN signal based on the first information.

[0007] Based on the above scheme, the first information received by the first communication device can indicate a threshold of the transmission power of the NTN signal transmitted by the first communication device in the first angle range, and the first communication device can transmit the NTN signal based on the threshold indicated by the first information. In other words, the first communication device transmits the NTN signal with a signal power lower than or equal to the threshold in a specific angle range based on the indication of the first information. Generally, in the NTN scenario, due to the long distance between different communication devices, large signal path loss, etc., the NTN signal may need a large transmission power. In the above scheme, the first information received by the first communication device can limit the transmission power of the NTN signal transmitted by the first communication device. In this way, the signal power of the NTN signal transmitted by the first communication device in the specified angle range will be lower than or equal to the threshold specified by the first information, which can reduce or reduce the interference of the NTN signal to the signal transmission of other systems (such as radio telescope systems, other communication systems other than the NTN system to which the first communication device belongs, etc.) in the specified angle range, to improve the signal transmission performance of the other system.

[0008] It should be noted that the first communication device transmits the NTN signal based on the first information, which can be understood as that the first communication device transmits the NTN signal with a signal power lower than or equal to the threshold indicated by the first information in the first angle range based on the first information.

[0009] Optionally, in the case where the threshold indicated by the first information is 0 or close to 0, the NTN signal transmitted by the first communication device based on the threshold may not be successfully received or successfully parsed by the receiving end. Therefore, in this case, the process of the first communication device transmitting the NTN signal based on the first information can be replaced by: the first communication device does not transmit the NTN signal in the first angle range based on the first information (or determines not to transmit the NTN signal in the first angle range based on the first information), or the first communication device is silent in the first angle range based on the first information.

[0010] In this application, the transmission power can be replaced by other terms, such as power, signal power, signal transmission power, energy, signal energy, or signal transmission energy, etc.

[0011] Optionally, the threshold of the transmission power includes at least one of the following: an effective isotropic radiation power (EIRP) threshold, a power flux density (PFD) threshold, an adjacent channel leakage ratio (ALCR) threshold, or an out-of-band PFD threshold.

[0012] In a possible implementation of the first aspect, the first information comprises at least one of the following:

[0013] first indication information, indicating the first angle range;

[0014] second indication information, indicating an effective time corresponding to the threshold of the transmission power;

[0015] third indication information, indicating a frequency point corresponding to the effective threshold of the transmission power; or

[0016] fourth indication information, indicating polarization information corresponding to the effective threshold of the transmission power.

[0017] Based on the above scheme, the first information received by the first communication device can comprise at least one of the above, so that the interference generated by the NTN signal transmitted by the first communication device based on the at least one is reduced.

[0018] In a possible implementation of the first aspect, the first indication information indicates at least one of the following:

[0019] an angle range of an azimuth angle of the NTN signal transmitted by the first communication device in the first angle range;

[0020] an angle range of an elevation angle of the NTN signal transmitted by the first communication device in the first angle range; or

[0021] an area covered by the NTN signal transmitted by the first communication device in the first angle range.

[0022] Based on the above scheme, the first indication information can indicate the first angle range in the above-mentioned multiple ways, so as to improve the flexibility of the implementation of the scheme.

[0023] In a possible implementation of the first aspect, the method further comprises: the first communication device transmitting second information, the second information being used for requesting the first information.

[0024] Based on the above scheme, the first communication device can further transmit the second information for requesting the first information, so that a receiver (for example, the second communication device) of the second information can provide the first information for the first communication device based on the request of the second information. In this way, the first communication device can actively obtain the transmission threshold of the NTN signal by requesting information, so as to reduce the interference of the NTN signal transmitted by the first communication device to other systems.

[0025] Optionally, the first communication device can periodically transmit the second information.

[0026] Optionally, the first communication device can trigger the transmission of the second information based on a certain trigger condition.

[0027] For example, the trigger condition can be that the first communication apparatus receives other signals in a certain angle range (e.g., the first angle range) with energy greater than a certain threshold value, and the first communication apparatus can determine that the first information needs to be requested by the second information to indicate a threshold value for NTN signal transmission by the first information, which can avoid or reduce interference to the transmission process of the other signals.

[0028] For example, the trigger condition can be that the first communication apparatus determines that NTN signals will be transmitted to a certain angle range (e.g., the first angle range). In order to avoid interference of the to-be-transmitted NTN signals to other systems, the first communication apparatus can request the first information by the second information to indicate a threshold value for NTN signal transmission by the first information, which can avoid or reduce interference to the transmission process of the other signals.

[0029] In a possible implementation manner of the first aspect, the second information includes state information of the first communication apparatus, and the state information of the first communication apparatus is used to determine the first information.

[0030] Based on the above scheme, the second information used to request the first information can include state information of the first communication apparatus, so that the receiver of the second information can provide the first communication apparatus with the first information adapted to the state information of the first communication apparatus based on the request of the second information, so that the first communication apparatus can subsequently perform a corresponding signal transmission process based on the first information.

[0031] Optionally, the state information is used to indicate at least one of the following:

[0032] The position of the first communication apparatus;

[0033] The correspondence between the position of the first communication apparatus and time;

[0034] The frequency point of the communication beam supported by the first communication apparatus;

[0035] The scanning angle range of the communication beam supported by the first communication apparatus;

[0036] The transmission power of the communication beam supported by the first communication apparatus; or

[0037] The out-of-band radiation power of the communication beam supported by the first communication apparatus.

[0038] The second aspect of the present application provides a communication method applied to a second communication device, such as being executed by the second communication device, which can be a communication device (e.g., a network device or a server, etc.), or a part of the communication device (e.g., a circuit or a chip responsible for communication functions (e.g., a modem chip, also known as a baseband chip, or a SoC chip or a SIP chip containing a modem core, etc.), or a logic module or software capable of implementing all or part of the functions of the communication device). In the method, the second communication device determines first information, which is used to indicate a threshold of transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the second communication device transmits the first information.

[0039] Based on the above scheme, the first information transmitted by the second communication device to the first communication device can indicate a threshold of transmission power of an NTN signal transmitted by the first communication device in a first angle range, and the first communication device can transmit the NTN signal based on the threshold indicated by the first information. In other words, the first communication device transmits an NTN signal with a signal power lower than or equal to the threshold in a specific angle range based on the indication of the first information. Generally, in the NTN scenario, due to the long distance between different communication devices, large signal path loss, etc., the NTN signal may need a large transmission power. In the above scheme, the first information received by the first communication device can limit the transmission power of the NTN signal transmitted by the first communication device. In this way, the signal power of the NTN signal transmitted by the first communication device in the specified angle range will be lower than or equal to the threshold specified by the first information, which can reduce or eliminate the interference of the NTN signal to the signal transmission of other systems (e.g., a radio telescope system, other communication systems other than the NTN system to which the first communication device belongs, etc.) in the specified angle range, so as to improve the signal transmission performance of the other system.

[0040] Optionally, the threshold of transmission power includes at least one of an effective isotropic radiation power (EIRP) threshold, a power flux density (PFD) threshold, an adjacent channel leakage ratio (ALCR) threshold, or an out-of-band PFD threshold.

[0041] In a possible implementation of the second aspect, the first information includes at least one of:

[0042] first indication information indicating the first angle range;

[0043] The second indication information indicates an effective time corresponding to the threshold of the transmission power;

[0044] The third indication information indicates a frequency point corresponding to the threshold of the transmission power.

[0045] The fourth indication information indicates polarization information corresponding to the threshold of the transmission power.

[0046] Based on the above scheme, the first information sent by the second communication device can include the at least one, so that the interference generated by the NTN signal sent by the first communication device based on the at least one is reduced.

[0047] In a possible implementation of the second aspect, the first indication information indicates at least one of:

[0048] An angle range of an azimuth angle of the NTN signal sent by the first communication device in the first angle range;

[0049] An angle range of an elevation angle of the NTN signal sent by the first communication device in the first angle range; or

[0050] An area covered by the NTN signal sent by the first communication device in the first angle range.

[0051] Based on the above scheme, the first indication information can indicate the first angle range in the above-mentioned multiple ways, so as to improve the flexibility of the scheme implementation.

[0052] In a possible implementation of the second aspect, the method further includes: receiving, by the second communication device, second information, the second information being used for requesting the first information.

[0053] Based on the above scheme, the second communication device can also receive the second information used for requesting the first information, so that the second communication device can provide the first information for the first communication device based on the request of the second information. In this way, the first communication device can actively obtain the transmission threshold of the NTN signal by requesting information, so as to reduce the interference of the NTN signal sent by the first communication device to other systems.

[0054] In a possible implementation of the second aspect, the second information includes state information of the first communication device, and the state information of the first communication device is used for determining the first information.

[0055] Based on the above scheme, the second information used for requesting the first information can include the state information of the first communication device, so that the second communication device can provide the first information adapted to the state information of the first communication device for the first communication device based on the request of the second information, so that the first communication device can subsequently perform a corresponding signal sending process based on the first information.

[0056] Optionally, the state information is used to indicate at least one of:

[0057] a location of the first communication device;

[0058] a correspondence between a location and a time of the first communication device;

[0059] a frequency point of a communication beam supported by the first communication device;

[0060] a scanning angle range of a communication beam supported by the first communication device;

[0061] a transmission power of a communication beam supported by the first communication device; or

[0062] an out-of-band radiation power of a communication beam supported by the first communication device.

[0063] The third aspect of the present application provides a communication device, comprising a processing unit and a transceiver unit; the transceiver unit is configured to receive first information, the first information being used to indicate a threshold value of a transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the transceiver unit is configured to transmit the NTN signal based on the first information.

[0064] In the third aspect of the present application, the constituent modules of the communication device can also be used to perform the steps performed in the various possible implementation manners of the first aspect and achieve the corresponding technical effects, which can be referred to the first aspect for details and will not be described here.

[0065] The fourth aspect of the present application provides a communication device, comprising a processing unit and a transceiver unit; the processing unit is configured to determine first information, the first information being used to indicate a threshold value of a transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the transceiver unit is configured to transmit the first information.

[0066] In the fourth aspect of the present application, the constituent modules of the communication device can also be used to perform the steps performed in the various possible implementation manners of the second aspect and achieve the corresponding technical effects, which can be referred to the second aspect for details and will not be described here.

[0067] The fifth aspect of the present application provides a communication device, comprising at least one processor configured to execute computer programs or instructions to enable the device to implement the method of any one of the preceding first aspect to the second aspect and any one of the possible implementation manners thereof.

[0068] Optionally, the at least one memory is coupled with the memory, and the memory is configured to store the computer programs or instructions.

[0069] Optionally, the communication device comprises the memory.

[0070] The sixth aspect of the present application provides a communication apparatus, comprising at least one logic circuit and an input / output interface; the logic circuit is configured to perform the method in any possible implementation manner of any one of the preceding first aspect to the second aspect.

[0071] The seventh aspect of the present application provides a communication system, comprising the first communication apparatus and the second communication apparatus.

[0072] The eighth aspect of the present application provides a computer readable storage medium, configured to store one or more computer-executable instructions, when the computer-executable instructions are executed by a processor, the processor performs the method in any possible implementation manner of any one of the preceding first aspect to the second aspect.

[0073] The ninth aspect of the present application provides a computer program product (or computer program), when the computer program in the computer program product is executed by a processor, the processor performs the method in any possible implementation manner of any one of the preceding first aspect to the second aspect.

[0074] The tenth aspect of the present application provides a chip or chip system, comprising at least one processor, configured to support the communication apparatus to perform the method in any possible implementation manner of any one of the preceding first aspect to the second aspect. For example, the chip can be a baseband chip, a modem chip, a system on chip (SoC) chip containing a modem core, a system in package (SIP) chip, or a communication module, etc.

[0075] In a possible design, the chip or chip system can further comprise a memory, configured to store necessary program instructions and data of the communication apparatus. The chip system can be composed of a chip, or can contain a chip and other discrete devices. Optionally, the chip system further comprises an interface circuit, configured to provide program instructions and / or data for the at least one processor.

[0076] The technical effects brought by any one of the third aspect to the tenth aspect can be referred to the technical effects brought by different design manners of the first aspect to the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0077] Figure 1 A schematic diagram of a communication system provided by the present application is shown in FIG. 1;

[0078] Figures 2a to 2dSome diagrams of satellite communication procedures provided for the present application;

[0079] Figure 3 One diagram of satellite communication procedures in a 5G system provided for the present application;

[0080] Figure 4 One diagram of communication methods provided for the present application;

[0081] Figures 5a to 5f Some diagrams of applications of communication methods provided for the present application;

[0082] Figure 6 and Figure 7 Some diagrams of applications of communication methods provided for the present application;

[0083] Figures 8 to 11 Some diagrams of communication apparatuses provided for the present application. DETAILED DESCRIPTION

[0084] First, some terms in the embodiments of the present application are explained and described, so as to facilitate the understanding of those skilled in the art.

[0085] (1) Terminal device: can be a wireless terminal device capable of receiving network device scheduling and indication information, the wireless terminal device can be a device that provides voice and / or data connectivity to a user, or a handheld device with wireless connection function, or other processing devices connected to a wireless modem.

[0086] The terminal device can be various communication kits (a kit can include, for example, an antenna, a power supply template, a cable, and a Wi-Fi module, etc.) with wireless communication functions, and can also be a communication module with satellite communication functions, a satellite phone or its components, a very small aperture terminal (VSAT). The terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone, mobile phone), a computer and a data card, for example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets (Pads), computers with wireless transceiver functions, etc. The wireless terminal device can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a subscriber station (SS), customer premises equipment (CPE), a terminal, user equipment (UE), a mobile terminal (MT), a drone, etc. The terminal device can also be a wearable device and a next-generation communication system, for example, a terminal device in a 6G communication system or a terminal device in a future evolved public land mobile network (PLMN), etc. Of course, the terminal device in this application can also refer to a chip, a modem, a system on a chip (SoC) mainly responsible for the relevant communication functions in the device, or a communication platform that can include a radio frequency (RF) part, etc.

[0087] (2) Network device: can be a device in a wireless network, for example, the network device can be a RAN node (or device) for accessing a terminal device to a wireless network, which can also be referred to as a base station. At present, some examples of RAN devices are: a base station, an evolved NodeB (eNodeB), a base station gNB (gNodeB) in a 5G communication system, a transmission reception point (TRP), an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a home base station (for example, a home evolved Node B, or a home Node B (HNB)), a baseband unit (BBU), or a wireless fidelity (Wi-Fi) access point (AP), etc. In addition, in a network structure, the network device can include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

[0088] Optionally, the RAN node can also be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a cloud radio access network (CRAN) scenario. The RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU).

[0089] In another possible scenario, multiple RAN nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can also be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0090] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an open RAN (O-RAN or ORAN) system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the 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.

[0091] The communication between the access network device and the terminal device follows a certain protocol layer structure. The protocol layer can include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer can include at least one of a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, or a physical (PHY) layer, etc. The user plane protocol layer can include at least one of a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, or a physical layer, etc.

[0092] For the correspondence between the network elements in the ORAN system and the protocol layer functions that can be implemented by the network elements, refer to Table 1 below.

[0093] Table 1

[0094] ORAN network elements 3GPP protocol layer functions O-CU-CP RRC+PDCP-Control Plane (PDCP-C) O-CU-UP SDAP+PDCP - User Plane (PDCP-U) O-DU RLC+MAC+PHY-high O-RU PHY-low

[0095] The network device can be other devices that provide wireless communication functions for terminal devices. Embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For the convenience of description, the embodiments of the present application do not limit.

[0096] The network device can further include a core network device, for example, including a mobility management entity (MME) in a fourth generation (4G) network, a home subscriber server (HSS), a serving gateway (S-GW), a policy and charging rules function (PCRF), a public data network gateway (P-GW), a network element such as an access and mobility management function (AMF), a user plane function (UPF), or a session management function (SMF) in a 5G network, and the like. In addition, the core network device can also include other core network devices in a 5G network and a next-generation network of the 5G network.

[0097] In the embodiments of the present application, the network device described above can also be a network node with artificial intelligence (AI) capability, which can provide AI services for terminals or other network devices. For example, the network node can be an AI node, a computing power node, an RAN node with AI capability, a core network element with AI capability, or the like on the network side (access network or core network).

[0098] In the embodiments of the present application, the device for implementing the function of the network device can be the network device, or a device capable of supporting the network device to implement the function, such as a chip system, which can be installed in the network device. In the technical solutions provided in the embodiments of the present application, the device for implementing the function of the network device is taken as an example to describe the technical solutions provided in the embodiments of the present application.

[0099] (3) Configuration and pre-configuration: in the present application, configuration and pre-configuration will be used simultaneously. Configuration refers to that the network device sends some parameter configuration information or parameter values to the terminal device through a message or signaling, so that the terminal device determines the communication parameters or resource in transmission according to the values or information. Pre-configuration is similar to configuration, which can be parameter information or parameter values agreed by the network device and the terminal device in advance, or parameter information or parameter values adopted by the network device or the terminal device according to a standard protocol, or parameter information or parameter values pre-stored in the network device or the terminal device. The present application does not make any limitation.

[0100] Further, these values and parameters can be changed or updated.

[0101] (4) The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "multiple" means two or more. The term "and / or" describes the association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can represent the cases of A alone, A and B together, and B alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. In addition, unless otherwise specified, the ordinal numbers "first", "second", etc. mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, time sequence, priority or importance of the multiple objects.

[0102] (5) In the embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as "output" of a chip interface, and "receiving" can also be understood as "input" of a chip interface.

[0103] In other words, sending and receiving can be between devices, such as between network devices and terminal devices, or within devices, such as between components, modules, chips, software modules or hardware modules within a device through a bus, wire or interface.

[0104] It can be understood that the information may be processed as necessary between the source and the destination of the information transmission, such as encoding and modulation, but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly, and will not be repeated here.

[0105] (6) Geographical area. In the embodiments of the present application, the geographical area can be replaced by the area. Wherein, the area is fixed relative to the earth, or the area is understood to refer to the geographical area fixed relative to the earth.

[0106] Exemplarily, the region can have at least one of the following properties: shape, contour, size, radius, area, geographical position, etc. In addition, the "region" can also have a height property, i.e., the region can be understood as a geographical region at a given height or a height range. For example, the region can refer to a geographical region at an altitude of 0 km or within an altitude range of 0 km ± 2 km, or a geographical region at a certain average altitude, or a geographical region at a certain specific height, such as a geographical region at an altitude of 10 km or within an altitude range of 10 km ± 3 km.

[0107] Alternatively, the above region fixed relative to the earth can also be referred to as "wave position", "geographical region", etc. Of course, there can be other names, and the name of the region fixed relative to the earth is not limited in the present application.

[0108] In a possible implementation, the shapes, contours, sizes, radii, and areas of different regions can or can not be the same. The geographical positions of different regions are different. There can or can not be overlap between different regions.

[0109] In a possible implementation, the region is fixed relative to the earth, which can be understood as: the contour, size, or geographical position of the region does not change, e.g., the contour, size, or geographical position of the region does not change with time. Alternatively, the region is fixed relative to the earth, which can be understood as: the contour of the region and the points in the region can be described by a fixed coordinate system of the earth, or the coordinates of each point on the contour of the region in the fixed coordinate system of the earth are fixed and unchanged.

[0110] In a possible implementation, the shape of the region can be a regular hexagon, or other shapes such as a regular pentagon, a circle, an ellipse, etc. Alternatively, the shape of the region can also be irregular, which is not limited.

[0111] Exemplarily, the shape of the region can be defined by a protocol or defined by a network device. The shapes of the regions defined by different network devices can or can not be the same. The same network device can also define multiple region shapes. Similarly, the size, radius, and area of the region can also be defined by a protocol or defined by a network device. The sizes, radii, and areas of the regions defined by different network devices can or can not be the same. The same network device can also define multiple region sizes, multiple region radii, or multiple region areas.

[0112] In a possible implementation, the earth surface can be divided into multiple regions, and the multiple regions can be indexed (e.g., numbered). The terminal device and the network device can agree on the numbering manner of the regions (e.g., whether to start from 1 or from 0) and the correspondence between the regions and the indexes. Alternatively, a protocol can define the numbering manner of the regions and the correspondence between the regions and the indexes. Based on the index of a region, the geographical position and other information of the region can be determined.

[0113] Optionally, the multiple divided regions can completely cover the earth surface, for example, any position on the earth surface belongs to a region; or the multiple divided regions can cover part of the geographical positions on the earth, for example, the multiple regions can not cover the south and / or north poles of the earth, that is, the south and / or north poles can not exist in the regions.

[0114] Optionally, the manner of dividing the multiple regions can be defined by a protocol or can be defined by the network device. The dividing manners defined by different network devices can be the same or different. The same network device can also define multiple dividing manners.

[0115] As a first possible dividing manner, a granularity of latitude and longitude grid can be used to divide the earth surface, for example, the earth surface can be divided by latitude and longitude grid with a granularity of 1 degree. If only this discrete manner is used, the global can be divided into 360x360=129600 regions, and the terminal device and the network device can agree that the indexes of the 129600 regions are 0, 1, …, 129599, or can also be agreed as 1, 2, …, 129600.

[0116] Optionally, when the height attribute of the geographical region is introduced, multiple grids dividing the earth surface can be defined, for example, the grid with an altitude of 0 km or within a range of 0 km plus or minus 2 km can be divided by latitude and longitude grid with a granularity of 1 degree, resulting in 129600 regions. The position with an altitude of 10 km or within a range of 10 km plus or minus 3 km is further divided by latitude and longitude grid with a granularity of 1 degree, resulting in another 129600 regions. When indexing these grids, the index range of the single-layer grid needs to be extended, for example, the total index is 0, 1, …, 129599, 129600, 129601, …, 259199, where the first 129600 serial numbers represent the grid index of the altitude of 0 km, and the last 129600 serial numbers represent the grid index of the altitude of 10 km.

[0117] For example, in the case of a network device being a LEO satellite, a relatively small granularity can be used for discretization; in the case of a network device being a GEO satellite, a relatively large granularity can be used for discretization.

[0118] As a second possible division manner, the earth surface can be divided using latitude and longitude grids of multiple granularities, for example, the earth surface in a part of the earth or a part of administrative region is divided using latitude and longitude grids of 1 degree granularity, and the earth surface in another part of the earth or another part of administrative region is divided using latitude and longitude grids of 2 degree granularity.

[0119] Alternatively, after introducing the height attribute of the geographical region, the earth surface at an altitude of 0 km can be divided using latitude and longitude grids of 1 degree granularity, and the earth surface at an altitude of 10 km can be divided using latitude and longitude grids of 2 degree granularity.

[0120] As a third possible division manner, the earth surface can be divided according to administrative regions. For example, a township-level administrative region is taken as a region.

[0121] As a fourth possible division manner, for a GEO satellite, a projection of a beam of the GEO satellite on the ground can be taken as a region. Since the GEO satellite is stationary relative to the earth, the projection of the beam of the GEO satellite on the ground can be considered as fixed relative to the earth.

[0122] In actual applications, multiple division manners can be combined to divide the earth surface, for example, the earth surface in a part of the earth or a part of administrative region is divided using latitude and longitude grids of 1 degree granularity, and the earth surface in another part of the earth or another part of administrative region is divided according to administrative regions.

[0123] In a possible implementation, in the case where the earth surface is divided into multiple regions, different levels of region division can be performed on the same earth surface range. For example, for a certain earth surface range, first level of region division is performed using latitude and longitude grids of 10 degree granularity, second level of region division is performed using latitude and longitude grids of 6 degree granularity, and third level of region division is performed using latitude and longitude grids of 1 degree granularity. At this time, in the earth surface range, the number of regions of the first level is greater than the number of regions of the second level, and the number of regions of the second level is greater than the number of regions of the third level. In addition, in this scenario, the regions of each level can be numbered separately.

[0124] (7) In the embodiments of the present application, the indication can include direct indication and indirect indication, and can also include explicit indication and implicit indication. The information indicated by certain information (indication information described below) is referred to as to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the arrangement order of each information agreed in advance (for example, predefined by a protocol) can be used to indicate a specific information, thereby reducing the indication overhead to a certain extent. The specific manner of indication is not limited in the present application. It can be understood that the indication information can be used to indicate the to-be-indicated information for the sender of the indication information, and the indication information can be used to determine the to-be-indicated information for the receiver of the indication information.

[0125] (8) A radio telescope is a specialized antenna and radio receiver used in radio astronomy to receive radio waves from astronomical radio sources in the sky. Radio telescopes vary greatly in appearance, from single-dish, fixed-in-place, spherical radio telescopes to dishes that can rotate in all directions like satellite dishes, to arrays of radio telescopes, to radio telescopes made of wire mesh. The ultimate resolution of a telescope depends on the diameter of the telescope and the wavelength of the observation. The larger the diameter and the shorter the wavelength, the higher the resolution.

[0126] Generally, since the signal observed by the radio telescope is very weak, from the perspective of communication, the radio telescope is a receiver arranged on the ground, with extremely high receiver sensitivity and adjustable receiving direction. In the direction observed by the radio telescope, it is not desirable to have other co-frequency communication signals to cause interference.

[0127] In the present application, the same or similar parts between various embodiments can be mutually referred to, unless otherwise specified. In the various embodiments of the present application, and the various methods / designs / implementation manners in the various embodiments, the terms and / or descriptions between different embodiments, and between the various methods / designs / implementation manners in the various embodiments are consistent and can be mutually referred to, unless otherwise specified and logically conflicted. The technical features in different embodiments, and in the various methods / designs / implementation manners in the various embodiments can be combined to form new embodiments, methods, or implementation manners according to their inherent logical relationship. The implementation manners of the present application described below do not constitute a limitation on the protection scope of the present application.

[0128] The present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or a new radio vehicle to everything (NR V2X) system; can also be applied to a system in which LTE and 5G are hybrid networked; or a device-to-device (D2D) communication system, a machine to machine (M2M) communication system, an Internet of Things (IoT), or a drone communication system; or a communication system supporting multiple wireless technologies, such as an LTE technology and an NR technology; or a non-ground communication system, such as a satellite communication system, a high-altitude communication platform, and the like. In addition, the communication system can also be applied to a narrow band-internet of things (NB-IoT) system or other communication systems, wherein the communication system includes a network device and a terminal device, the network device serves as a configuration information sending entity, and the terminal device serves as a configuration information receiving entity. Specifically, there are entities in the communication system that send configuration information to another entity, and send data to another entity or receive data sent by another entity; another entity receives configuration information and sends data to the configuration information sending entity or receives data sent by the configuration information sending entity according to the configuration information. The present application can be applied to a terminal device in a connected state or an active state, and can also be applied to a terminal device in an inactive state or an idle state.

[0129] Referring to Figure 1 , a schematic diagram of an architecture of a communication system 1000 to which embodiments of the present application are applied is shown. As shown in Figure 1 , the communication system includes a radio access network (RAN) 100 and a core network 200, and optionally, the communication system 1000 can also include an 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 can also include at least one terminal (such as 120a-120j in Figure 1 , collectively referred to as 120). The RAN 100 can also include other RAN nodes, such as a wireless relay device and / or a wireless backhaul device Figure 1The terminal 120 is connected to the RAN node 110 in a wireless manner, and the RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be independent and different physical devices, or can be the same physical device integrating the logical functions of the core network device and the logical functions of the RAN node. The terminals can be connected to each other in a wired or wireless manner, and the RAN nodes can be connected to each other in a wired or wireless manner.

[0130] It should be noted that the technical solutions of the embodiments of the present application are applicable to a ground communication system. Alternatively, the technical solutions of the embodiments of the present application are applicable to a communication system integrating ground communication and satellite communication, which can also be referred to as a non-terrestrial network (NTN) communication system. Exemplarily, Figure 1 The RAN 100 in the satellite communication system can include a ground base station, where the ground base station can include a TN cell (i.e., signals of the TN cell can be transmitted and received by the ground base station); and Figure 1 The RAN 100 in the satellite communication system can also include a non-ground base station. Taking a satellite as an example, the satellite can include an NTN cell (i.e., signals of the NTN cell can be transmitted and received by the satellite). The ground communication system can be, for example, a long term evolution (LTE) system, a universal mobile telecommunication system (UMTS), a 5G communication system, a new radio (NR) system, or a next-generation communication system of the 5G communication system, without limitation.

[0131] The satellite communication has a wider coverage range than the traditional mobile communication system, the communication cost is independent of the transmission distance, and can overcome natural geographical obstacles such as oceans, deserts, and mountains. In order to overcome the shortcomings of the traditional communication network, the satellite communication can be an effective supplement to the traditional network. It is generally considered that the non-terrestrial network communication has different channel characteristics compared with the ground network communication, such as large transmission delay and large Doppler frequency offset. Exemplarily, the round-trip delay of GEO satellite communication is 238-270 milliseconds (ms). The round-trip delay of LEO satellite communication is 8-20 ms. According to the orbital height, the satellite communication system can be divided into three types: a geostationary earth orbit (GEO) satellite communication system, also known as a synchronous orbit satellite system; a medium earth orbit (MEO) satellite communication system; and a low earth orbit (LEO) satellite communication system.

[0132] Among them, GEO satellite is also commonly known as geostationary satellite, and its orbit height can be 35786 kilometers (km). The main advantage is that it is stationary relative to the ground and provides a large coverage area. However, the disadvantages of GEO satellite orbit satellites are also relatively prominent: such as the distance from the earth is too large, a larger diameter antenna is needed; its transmission delay is large, about 0.5 seconds, which cannot meet the needs of real-time services; at the same time, its orbit resources are relatively scarce, the launch cost is high and it cannot provide coverage for the polar regions. MEO satellite, with an orbit height of 2000-35786 km, has a relatively small number of satellites to achieve global coverage, but its transmission delay is higher than that of LEO satellite, and it is mainly used for positioning and navigation. In addition, the orbit height of 300-2000 km is called low earth orbit (LEO). LEO satellite has a lower orbit height than MEO and GEO, smaller data propagation delay, less power loss, and relatively lower launch cost. Therefore, LEO satellite communication network has made great progress in recent years and has attracted attention.

[0133] In a possible implementation, the satellite device can be divided into transparent mode and regenerative mode according to the working mode.

[0134] The following will be described by the implementation modes shown in Figure 2a 、 Figure 2b 、 Figure 2c and Figure 2d .

[0135] As shown in the implementation mode of the transparent mode shown in Figure 2a , the satellite and the gateway (i.e. NTN Gateway in Figure 2a ) act as a relay, i.e. the Remote Radio Unit shown in Figure 2a , and the terminal device and the gNB need to realize communication through the relay process. In other words, in the transparent mode, the satellite has the function of relay forwarding.

[0136] For example, in the implementation mode of the transparent mode shown in Figure 2b , when the satellite (including GEO satellite, MEO satellite, LEO satellite, etc.) works in the transparent mode, the satellite has the function of relay forwarding. The gateway (or gateway station) has the function of the base station or part of the base station function, and at this time the gateway can be regarded as a base station. Alternatively, the base station can be deployed separately from the gateway, and then the delay of the feeder link includes the delay of the satellite to the gateway and the delay of the gateway to the gNB.

[0137] Optionally, the transparent mode can be exemplified by the case where the gateway station and the gNB are together or close to each other. For the case where the gateway station is far away from the gNB, the feeder link delay can be the sum of the satellite-to-gateway station delay and the gateway station-to-gNB delay.

[0138] As shown in the implementation mode of the regenerative mode, Figure 2c the satellite and the gateway station (i.e., the NTN Gateway) can communicate with the terminal device as a gNB. In other words, in the regenerative mode, the satellite has the function of a base station or part of the function of a base station, and at this time the satellite can be regarded as a base station. Figure 2c

[0139] Exemplarily, in the implementation mode of the regenerative mode shown in Figure 2d , compared with the implementation mode shown in Figure 2b , the satellite has the function of a base station or part of the function of a base station, and at this time the satellite can be regarded as a base station (i.e., an air base station).

[0140] Optionally, in Figure 2b and / or Figure 2d , the satellite can be implemented in other ways, such as a drone or a high-altitude platform in the figure.

[0141] It should be noted that the base stations of the NTN and the ground network can be interconnected through a common core network. Higher timeliness assistance and interconnection can also be achieved through interfaces defined between base stations. In NR, the interface between base stations is called Xn interface, and the interface between the base station and the core network is called NG interface. In the fusion network, the NTN node and the ground node can realize interworking and cooperation through the foregoing interfaces.

[0142] In addition, the satellite as a network device can send ephemeris information, so that the receiver of the ephemeris information (such as a terminal device or a base station thereof or other satellites, etc.) can determine the relevant information of the running track of the satellite based on the ephemeris information. As an implementation example, the ephemeris information can include one or more information in Table 2 below. Alternatively, the terminal device can obtain one or more information in Table 2 through pre-configuration.

[0143] Table 2

[0144]

[0145] It should be noted that in actual applications, the last parameter in Table 2, the perigee time t p may be replaced by true anomaly or mean anomaly, which has the same effect, as shown in Table 3.

[0146] Table 3 ​

[0147]

[0148] It should be noted that the present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or a future communication network / system.

[0149] For example, a 5G satellite communication system architecture is shown in Figure 3 The ground terminal device accesses the 5G new radio access network through the 5G base station deployed on the satellite, and is connected to the ground core network through the wireless link. At the same time, there is a wireless link between the satellites to complete the signaling interaction and user data transmission between the base stations. Figure 3 The description of the devices and interfaces in

[0150] 5G core network: user access control, mobility management, session management, user security authentication, charging and other services. It is composed of multiple functional units, which can be divided into control plane and data plane functional entities. Access and mobility management unit (AMF) is responsible for user access management, security authentication, and mobility management. User plane unit (UPF) is responsible for managing user plane data transmission, traffic statistics and other functions. Session management function (SMF) is mainly used for session management in mobile networks, such as session establishment, modification, and release.

[0151] Ground station: responsible for forwarding signaling and service data between satellite base station and 5G core network.

[0152] 5G new radio: wireless link between terminal and base station.

[0153] Xn interface: interface between 5G base stations, mainly used for signaling interaction such as handover.

[0154] NG interface: interface between 5G base station and 5G core network, mainly interacting with non-access stratum (NAS) signaling of core network and user service data.

[0155] Furthermore, network devices in terrestrial network communication systems and satellites in NTN communication systems can be uniformly considered as network devices. The apparatus used to implement the functions of a network device can be a network device itself; it can also be an apparatus capable of supporting the network device in implementing that function, such as a chip system, which can be installed within the network device. In the following description of the technical solutions provided by the embodiments of this application, a satellite is used as an example to illustrate the technical solutions provided by the embodiments of this application. It is understood that when the methods provided by the embodiments of this application are applied to terrestrial network communication systems, the actions performed by the satellite can be applied to the base station or network device for execution.

[0156] In this application embodiment, the device for implementing the functions of the terminal device can be the terminal device itself; it can also be a device capable of supporting the terminal device in implementing the functions, such as a chip system, which can be installed in the terminal device. In this application embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. In the technical solutions provided in this application embodiment, the device for implementing the functions of the terminal device is a terminal or UE as an example to describe the technical solutions provided in this application embodiment.

[0157] In addition, the aforementioned satellites can be geostationary satellites, non-geostationary satellites, artificial satellites, low-Earth orbit satellites, medium-Earth orbit satellites, and high-Earth orbit satellites, etc., which are not specifically limited here.

[0158] The foregoing content describes various wireless communication scenarios involved in this application. It should be understood that the above content is merely an illustrative description of the scenarios in which this application can be applied, and this application can also be applied to other application scenarios, which are not limited here. The wireless communication process involved in this application will be described below.

[0159] With the development of communication technology, network equipment (such as...) Figure 2a / Figure 2b / Figure 2c / Figure 2d / Figure 3 The network equipment in the communication system shown may not be fixed at a certain location on the ground. For example, the network equipment may be a high-speed mobile device belonging to the NTN cell, including but not limited to drones, high-altitude platforms, or satellite equipment such as low-orbit satellites, medium-orbit satellites, and high-orbit satellites.

[0160] However, in NTN scenarios, due to the long distances between different communication devices, the NTN signals transmitted by these devices will inevitably interfere with other systems (such as radio telescope systems, and other communication systems outside the NTN system to which the communication device belongs) during long-distance transmission. The following examples illustrate the potential interference issues associated with NTN signals.

[0161] As an example, there can be an issue of co-frequency interference between different satellite systems, i.e., the NTN signals of one satellite system can interfere with other satellite systems. Generally, in cellular communications, the frequency spectrum of different operators is different, and there is no risk of co-frequency interference between operators. However, the situation of satellite communication is completely different, and historically, LEO satellites can use the same frequency spectrum as GEO satellites under certain conditions. In recent years, a large number of LEO constellations have appeared, and different LEO satellite systems also apply for the same millimeter wave frequency band, and there is a risk of co-frequency interference between different systems.

[0162] For example, the international telecommunication union (ITU) has principle design guidelines for interference avoidance between LEO systems and GEO systems, for example: GEO satellite systems have higher priority than LEO satellite systems, and LEO satellite systems should avoid interfering with GEO systems. For another example: LEO satellite systems should not transmit and receive near the communication direction of GEO satellite systems to avoid "coaxial interference".

[0163] In addition, unlike the GEO and LEO satellite co-frequency interference avoidance problem, there is currently no discussion of coexistence methods between LEO systems. Among them, when applying for frequency and orbit resources, new LEO satellite constellation systems need to coordinate with existing LEO satellite systems to ensure that the interference is within a low range. If no interference coordination is done, different LEO satellite systems can have random interference, and the severity of the interference is related to user density and satellite scale.

[0164] As another example, there can be an issue of interference between satellite systems and radio telescopes, i.e., the NTN signals of one satellite system can interfere with radio telescope systems. For example, once the signals transmitted by the satellite system enter the receiving beam of the radio telescope, it will produce very strong interference, and since the receiving sensitivity of the radio telescope is very high, even a small amount of energy from the satellite beam can interfere with the observation of the radio telescope.

[0165] For example, the United States Federal Communications Commission (FCC) requires that practicable means be taken to avoid interference to radio telescope systems from spaceborne or airborne systems, e.g., take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service. In such cases, the satellite cannot transmit either co-frequency or adjacent frequency signals toward the radio telescope.

[0166] In addition, the ITU has very specific limits on the downlink signal strength at different frequencies into a radio telescope. For example, around 2 gigahertz (GHz), the PFD into a radio telescope is required to be below -210 decibels watts per square meter per megahertz (dBW / m2 / MHz). However, the in-band downlink signal strength of a typical communications satellite is -80 to -90 dBW / m2 / MHz, and the out-of-band leakage downlink strength (as required by FCC regulations) is no more than -120 dBW / m2 / MHz, which is still much higher than the ITU limit. Therefore, the beam of a communications satellite cannot transmit signals toward the direction where the radio telescope receives signals, even if the satellite operates at the adjacent frequency of the radio telescope.

[0167] From the above process, it can be known that the NTN signal can interfere with other systems (for example, other satellite systems, radio telescope systems, and the like). The current satellite communication system lacks corresponding signaling to enable real-time control and management of the satellite beam, and therefore the ability of the satellite communication system must be limited in a larger range (for example, the satellite communication system cannot send any signal in the direction associated with the other system at any time). Taking the radio telescope system as an example, in order to avoid interference with the radio telescope system, the radio telescope system and the satellite system negotiate the observation time and the beam service strategy of the satellite system. The satellite system controls the beam emitted by the satellite according to the negotiation result, so as to avoid the signal emitted by the satellite system interfering with the radio telescope system (for example, the satellite communication system cannot send any signal in the direction that can interfere with the radio telescope system at any time). However, although this method can achieve interference avoidance, the service of the satellite communication is damaged to a high degree due to poor timeliness, and therefore this interference avoidance method can not be applicable.

[0168] To solve the above problems, the present application provides a communication method and related devices, which will be described in detail below with reference to the accompanying drawings.

[0169] Please refer to Figure 4 An implementation example of the communication method provided by the present application is shown in the figure, and the method includes the following steps.

[0170] It should be understood that in the following, the different communication devices are taken as examples of the execution subject of the interaction diagram to illustrate the method, but the present application does not limit the execution subject of the interaction diagram. For example, any one of the first communication device to the fourth communication device can be a communication device, or part of the components (for example, a chip, a baseband chip, a modem chip, a SoC chip containing a modem core, a SIP chip, a communication module, a chip system, a processor, a logic module, or software, etc.) in the communication device.

[0171] As an example, the first communication device can be a certain network device, and the second communication device can be another network device, a server, an operation, administration and maintenance (OAM) device, or the like, which is used to manage / control / schedule the threshold of the transmission power of the NTN signal sent by the network device.

[0172] As another example, the first communication device can be a terminal device, and the second communication device can be a network device, a server, an OAM device, or the like, which is used to manage / control / schedule the threshold of the transmission power of the NTN signal sent by the terminal device.

[0173] Optionally, the network device can be an access network device, which can be an ORAN network element.

[0174] For example, the first communication device can be an access network device. The access network device can include an O-CU, an O-DU, and an O-RU. In step S401, the first communication device can receive the first information through the O-RU. In step S402, the first communication device can generate an NTN signal through the O-CU and / or the O-DU, and control the O-RU to transmit the NTN signal through the O-CU and / or the O-DU.

[0175] For another example, the second communication device can be an access network device. The access network device can include an O-CU, an O-DU, and an O-RU. In step S401, the second communication device can generate the first information through the O-CU and / or the O-DU, and control the O-RU to transmit the first information through the O-CU and / or the O-DU.

[0176] In step S401, the second communication device transmits the first information, and the first communication device receives the first information. The first information is used to indicate a threshold value of a transmission power of an NTN signal transmitted by the first communication device in a first angle range.

[0177] Optionally, the first communication device and the second communication device can transmit communication signals (such as messages, signaling, or data, etc.), which can be transmitted through the same link as the first information. In other words, the second communication device can transmit the first information through a communication link between the two communication devices, which can be referred to as a side control link. In this way, the communication link between the first communication device and the second communication device can be multiplexed to transmit the first information. For example, in the case where the first communication device is a UE or a mobile termination (MT) (or a device containing the MT), and the second communication device is a network device, the first information can be transmitted through a downlink. For example, the first information can be transmitted in the form of downlink control information (DCI), a medium access control control element (MAC CE), radio resource control (RRC) signaling, etc.

[0178] Optionally, the device including the MT can be implemented in various ways. For example, the device can be a network controlled repeater (NCR) including the MT and a forwarding (Fwd), an integrated access and backhaul (IAB) including the MT and a DU, an NTN node including the MT and a forwardink unit (FU), or a terrestrial relay node including the MT and the FU, etc.

[0179] For example, as shown in the example of FIG. 1, the device including the MT can be a network controlled repeater (NCR) including the MT and a forwarding (Fwd), an integrated access and backhaul (IAB) including the MT and a DU, an NTN node including the MT and a forwardink unit (FU), or a terrestrial relay node including the MT and the FU, etc. Figure 5a For example, as shown in the example of FIG. 1, the device including the MT can be a network controlled repeater (NCR) including the MT and a forwarding (Fwd), an integrated access and backhaul (IAB) including the MT and a DU, an NTN node including the MT and a forwardink unit (FU), or a terrestrial relay node including the MT and the FU, etc.

[0180] S402. The first communication device sends the NTN signal based on the first information.

[0181] It should be noted that the first communication device sends the NTN signal based on the first information can be understood as that the first communication device sends the NTN signal with a signal power lower than or equal to a threshold indicated by the first information within the first angle range based on the first information. Optionally, the receiver of the NTN signal sent by the first communication device can be a terminal device or a network device.

[0182] Optionally, in the case that the threshold indicated by the first information is 0 or close to 0, the NTN signal transmitted by the first communication device based on the threshold can not be successfully received or successfully parsed by the receiving end. Therefore, in this case, the process of transmitting the NTN signal by the first communication device based on the first information in step S402 can be replaced by: the first communication device does not transmit (or determines not to transmit) the NTN signal in the first angle range based on the first information, or the first communication device is silent in the first angle range based on the first information.

[0183] In this application, the transmission power can be replaced by other terms, such as power, signal power, signal transmission power, energy, signal energy, or signal transmission energy, etc.

[0184] Optionally, the threshold of the transmission power includes at least one of the following: an effective isotropic radiation power (EIRP) threshold, a power flux density (PFD) threshold, an adjacent channel leakage ratio (ALCR) threshold, or an out-of-band PFD threshold.

[0185] Based on Figure 4 According to the scheme shown, the first information received by the first communication device in step S401 can indicate a threshold of the transmission power of the NTN signal transmitted by the first communication device in the first angle range, and in step S402, the first communication device can transmit the NTN signal based on the threshold indicated by the first information. In other words, the first communication device transmits the NTN signal with a signal power lower than or equal to the threshold in a specific angle range based on the indication of the first information. Generally, in the NTN scenario, due to the long distance between different communication devices, large signal path loss, etc., the NTN signal can need a large transmission power. In the above scheme, the first information received by the first communication device can limit the transmission power of the NTN signal transmitted by the first communication device. In this way, the signal power of the NTN signal transmitted by the first communication device in the specified angle range will be lower than or equal to the threshold specified by the first information, which can reduce or decrease the interference of the NTN signal to the signal transmission of other systems (such as radio telescope systems, other communication systems other than the NTN system to which the first communication device belongs, etc.) in the specified angle range, so as to improve the signal transmission performance of the other system.

[0186] It should be noted that, Figure 4The method shown can be applied to various scenarios. For example, the scenario can include a scenario in which the inter-satellite link (ISL) capacity of a hotspot area in a future high-throughput satellite network is limited, and it is difficult to deploy a network ground device in a user-uninhabited area. Some implementation examples will be described below.

[0187] As an example, network devices on the ground can act as inter-satellite relays, and these network devices can also serve UEs.

[0188] As shown in the example, Figure 5b The network devices on the ground can be ground base stations, and transceiver devices supporting satellite signal forwarding can be deployed on the ground base stations. Such devices can be referred to as ground forwarding devices (e.g., BS & forwarding devices in remote areas in the figure). Such a scenario can be applicable to scenarios in which existing ground base stations are deployed. For example, the ground relay device can act as a relay for inter-satellite data transmission, for forwarding NTN signals of one satellite to another satellite; the ground relay device can also serve as a BS to serve UEs in the surrounding area, for processing signals sent by UEs to the satellite as NTN signals and forwarding them to the satellite, or forwarding NTN signals sent by the satellite to the UEs to the UEs.

[0189] It should be understood that in the example shown in Figure 5b The BS, UE, BS & forwarding device, GW, and the like can transmit NTN signals, and any of these devices can act as the first communication device described above, which transmits NTN signals according to the threshold indicated by the first information, to avoid or reduce interference of signals transmitted by these devices with signal transmission of other systems.

[0190] As another example, network devices on the ground (including land areas and / or sea areas) can act as inter-satellite relays, and these network devices can act as ground relays for inter-satellite signal transmission.

[0191] As shown in the example, Figure 5c The network devices in the sea area can be used in scenarios in which ground relay devices are deployed in uninhabited areas on land or in the sea, where there can be no users or few users.

[0192] It should be understood that in the example shown in Figure 5c The UE in the sea area, the strong ground relay, and the GW & BS in the land area can transmit NTN signals, and any of these devices can act as the first communication device described above, which transmits NTN signals according to the threshold indicated by the first information, to avoid or reduce interference of signals transmitted by these devices with signal transmission of other systems.

[0193] As described above, the ground relay device and the satellite can be divided into transparent mode and regenerative mode according to the working mode. When working in the transparent mode, the device has the function of amplifying and forwarding the radio frequency signal and frequency shift. When working in the regenerative mode, the device has data processing capability (including coding and decoding, recombination, and retransmission, etc.), and has the function of a base station or part of the base station (such as IAB node, gNB-DU, or UE relay) function. For example, according to whether the satellite and the ground relay device have processing capability, there are several potential architectures, which will be introduced below in combination with the examples shown in the following figures. Figures 5d to 5f

[0194] As shown in the example of Figure 5d , it is an example of a full transparent architecture. The satellite and the ground relay device are both transparent devices, and do not perform coding and decoding, recombination, and retransmission, etc. on data. The BS node perceived by the UE is the BS (such as gNB) on the ground.

[0195] As shown in the example of Figure 5e , it is an example of a full regenerative architecture. The satellite and the ground relay device are both regenerative devices, and each node can perform coding and decoding, recombination, and retransmission, etc. on data. The node perceived by the UE is the satellite serving the UE, that is, the node perceived by the UE is the BS node closest to the UE in the multi-hop link.

[0196] As shown in the example of Figure 5f , it is an example of a partially regenerative and partially transparent architecture. Part of the satellite and the ground relay device is a transparent node, and part is a regenerative node. For example, the satellite is a transparent node, and the ground is a regenerative node, which can reduce the load cost to the maximum extent under similar performance. The node perceived by the UE is the BS node closest to the UE in the multi-hop link.

[0197] It should be understood that, in the example shown in Figures 5d to 5f , the UE, the satellite, the gNB, etc. can transmit the NTN signal, and any of these devices can be the first communication device described above, which transmits the NTN signal through the threshold value indicated by the first information, so as to avoid or reduce the interference of the signals transmitted by these devices to the signal transmission of other systems.

[0198] In a possible implementation of the method shown in Figure 4 , the first information received by the first communication device in step S401 includes at least one of the following:

[0199] The first indication information indicates the first angle range;

[0200] The second indication information indicates the effective time corresponding to the threshold value of the transmission power;​

[0201] The third indication information indicates the effective frequency point corresponding to the threshold of the transmission power; or

[0202] The fourth indication information indicates the effective polarization information corresponding to the threshold of the transmission power.

[0203] Therefore, the first information received by the first communication device can include at least one of the above, so that the interference generated by the NTN signal transmitted by the first communication device based on the at least one is reduced.

[0204] Optionally, the first information can carry the at least one information by a table, an index, a formula or other ways.

[0205] Optionally, the first indication information can indicate the first angle range in various ways, for example, the first indication information indicates at least one of the following:

[0206] ① The azimuth angle range of the NTN signal transmitted by the first communication device in the first angle range;

[0207] ② The elevation angle range of the NTN signal transmitted by the first communication device in the first angle range (optionally, the elevation angle can include the depression angle and / or the elevation angle); or

[0208] ③ The area covered by the NTN signal transmitted by the first communication device in the first angle range.

[0209] Illustratively, the azimuth angle can be the angle formed between the reference direction (the reference direction is north in a common case) of the target on the defined horizontal plane and the line-of-sight direction. Or, the projection of the vector from the observer (origin) to the point of interest to the reference plane is orthogonal, and the angle between the projection vector and the reference vector (north) on the reference plane is called the azimuth angle. Optionally, the azimuth angle can be replaced by the azimuth direction or other terms.

[0210] Illustratively, the elevation angle can include the depression angle and / or the elevation angle. For example, if the line of sight is above the horizontal line, the angle between the line of sight and the horizontal line is called the elevation angle. The concept opposite to the elevation angle: if the line of sight is below the horizontal line, the angle between the line of sight and the horizontal line is called the depression angle.

[0211] It should be noted that the first communication device can be implemented in various different ways, and accordingly, the first information obtained by the first communication device can be different, which will be described below in combination with some examples.

[0212] Implementation Example One, the first communication device is a satellite, a drone, a high-altitude platform or other NTN node, and the first information can be configured by the signal transmission direction of the NTN signal transmitted by the NTN node.

[0213] In Example 1, the second communication device can send first information to the NTN node via the in-line control link. When the NTN node transmits a beam, the transmission energy in a given time and direction does not exceed the configured radio frequency threshold.

[0214] For example, in the implementation of Example 1, the first information is carried through a table, as shown in Table 4 below.

[0215] Table 4

[0216]

[0217] It should be understood that in Table 4, the service angle range is an example of the first indication information mentioned above (e.g., ① and ②), the time range is an example of the second indication information mentioned above, the frequency point is an example of the third indication information mentioned above, and the EIRP threshold, landing PFD threshold, ALCR threshold, and out-of-band landing PFD threshold are examples of the thresholds indicated by the first information.

[0218] It should be noted that the service angle range can be achieved in various ways, which will be described below with some examples.

[0219] As an example, such as Figure 6 In the example shown, the forward direction of the NTN node (i.e., the satellite's forward direction) is the x-axis, and the geocentric direction is the z-axis. The service angle range can be described using the azimuth angle (Phi) and elevation angle (Theta) of the agreed coordinate system.

[0220] As another example, the service angle range can also be achieved in other ways, as shown in Table 5 below.

[0221] Table 5

[0222] serial number Phi range Theta range 1 Phi11-phi12 Theta11-theta12 2 Phi21-phi22 Theta21-theta22 3 Phi31-phi32 Theta31-theta32 … … …

[0223] In Table 5, the spatial angles seen by the satellite can be discretized and pre-configured or pre-defined with discrete numbers. Using numbers or indexes to represent the range of service angles can reduce indication overhead.

[0224] Furthermore, in Table 4, the time range can indicate absolute time, or it can be the relative time built into the communication system, such as the system frame number (SFN), or implemented in other ways, which are not limited here.

[0225] Alternatively, the time range can also be achieved in other ways, as shown in Table 6 below.

[0226] Table 6

[0227] serial number Time range 1 T=t11-t12+k*delta,k=0,1,2,… 2 T=t21-t22+k*delta,k=0,1,2,… 3 T=t31-t32+k*delta,k=0,1,2,… … …

[0228] In Table 6, the number of time patterns can be pre-configured or pre-defined, and the time range can be represented by using the number or index, which can reduce the indication overhead.

[0229] Optionally, in Table 4, the EIRP threshold and the landing PFD threshold can be 2 selected from 1.

[0230] Optionally, in Table 4, the ALCR threshold can include multiple, such as a first adjacent frequency, a second adjacent frequency, and a commonly used first adjacent frequency distance in the table.

[0231] Optionally, in Table 4, the out-of-band landing PFD threshold can also include multiple, such as a first adjacent frequency out-of-band landing PFD, a second adjacent frequency out-of-band landing PFD, and a landing PFD of the second harmonic, and a commonly used first adjacent frequency in the table.

[0232] In the second implementation example, the first communication device is a ground base station, a ground relay node UE, or the like, and the first information can be configured by a signal transmission direction of the ground node transmitting the NTN signal.

[0233] In the second implementation example, the second communication device can send the first information to the ground node through the side control link, and the ground node transmits the energy in a given direction at a given time. The transmission energy does not exceed the configured radio frequency threshold.

[0234] For example, in the second implementation example, the first information carries each item of information through a table, as shown in the following Table 7.

[0235] Table 7

[0236]

[0237] It should be understood that in Table 7, the service angle range is an example of the first indication information (e.g., ① and ②) described above, the time range is an example of the second indication information described above, the frequency point is an example of the third indication information described above, and the EIRP threshold, the ALCR threshold, and the out-of-band power are examples of the threshold indicated by the first information.

[0238] It should be noted that the service angle range can be implemented in various ways, which will be described below in conjunction with some examples.

[0239] As an example, as shown in the following Figure 7 example, the x-axis is east, the y-axis is north, and the z-axis is directly above. The service angle range can be described by the azimuth angle (Phi, denoted as φ in the figure) and the pitch angle (Theta, denoted as θ in the figure) of the convention coordinate system.

[0240] As another example, the service angular range can also be implemented in other manners, as shown in Table 8 below.

[0241] Table 8

[0242] serial number Phi range Theta range 1 Phi11-phi12 Theta11-theta12 2 Phi21-phi22 Theta21-theta22 3 Phi31-phi32 Theta31-theta32 … … …

[0243] In Table 8, the spatial angle seen by the ground node can be discretized and pre-configured or pre-defined, and the number or index can be used to represent the range of the service angle, so as to reduce the indication overhead.

[0244] In addition, in Table 7, the time range can indicate an absolute time, or a relative time of the communication system, such as a system frame number (SFN), or other manners, which are not limited here.

[0245] Optionally, the time range can also be implemented in other manners, as shown in Table 9 below.

[0246] Table 9

[0247] serial number Time range 1 T=t11-t12+k*delta,k=0,1,2,… 2 T=t21-t22+k*delta,k=0,1,2,… 3 T=t31-t32+k*delta,k=0,1,2,… … …

[0248] In Table 9, the number or index of the time pattern can be pre-configured or pre-defined, and the number or index can be used to represent the time range, so as to reduce the indication overhead.

[0249] Optionally, in Table 7, the ALCR threshold can include one or more, such as a first adjacent frequency, a second adjacent frequency, and the first adjacent frequency distance in the table.

[0250] Optionally, in Table 7, the out-of-band power can include one or more, such as a first adjacent frequency out-of-band power, a second adjacent frequency out-of-band power, and a second harmonic power.

[0251] In implementation example three, the first communication device can be an NTN node or a ground node, and the first information can be configured in the direction of the radio telescope system or other protected system.

[0252] In implementation example three, the second communication device sends the first information to the ground node or the NTN node through the control channel, and the ground node or the NTN node transmits a beam according to the first information, and the beam radiation characteristic meets the threshold required in the configuration in the radio telescope area.

[0253] For example, in implementation example one, the first information is carried in the table, as shown in Table 10 below.

[0254] Table 10

[0255]

[0256] It should be understood that in Table 10, the service angle range is an example of the first indication information (e.g., ③) described above, the time range is an example of the second indication information described above, the frequency point is an example of the third indication information described above, and the EIRP threshold, the landing PFD threshold, the ALCR threshold, and the out-of-band landing PFD threshold are examples of the thresholds indicated by the first information.

[0257] Optionally, in Table 10, the geographic area can be directly described (latitude and longitude) or described using the index described in the foregoing terms.

[0258] In addition, in Table 10, the time range can indicate an absolute time or a relative time of a communication system, such as a system frame number (SFN), or other manners, which are not limited herein.

[0259] Optionally, the time range can also be implemented in other manners, as shown in Table 11 below.

[0260] Table 11

[0261] serial number Time range 1 T=t11-t12+k*delta,k=0,1,2,… 2 T=t21-t22+k*delta,k=0,1,2,… 3 T=t31-t32+k*delta,k=0,1,2,… … …

[0262] Optionally, in Table 10, the EIRP threshold and the landing PFD threshold can be selected from one of the two;

[0263] Optionally, in Table 10, the ALCR threshold can include one or more, such as a first adjacent frequency, a second adjacent frequency, and a commonly used first adjacent frequency distance in the table.

[0264] Optionally, in Table 10, the out-of-band landing PFD threshold can also include one or more, such as a first adjacent frequency out-of-band landing PFD, a second adjacent frequency out-of-band landing PFD, and a second harmonic landing power. The table takes the commonly used first adjacent frequency as an example.

[0265] In a possible implementation manner, Figure 4 The method also includes:

[0266] Step S400. The first communication device sends second information, and the second communication device receives the second information correspondingly. The second information is used to request the first information.

[0267] In other words, the first communication device can further transmit second information for requesting the first information, so that a receiver (e.g., the second communication device) of the second information can provide the first information for the first communication device based on the request of the second information. In this way, the first communication device can actively obtain the transmission threshold of the NTN signal by requesting the information, so as to reduce the interference of the NTN signal transmitted by the first communication device to other systems.

[0268] Optionally, the first communication device can periodically transmit the second information.

[0269] Optionally, the first communication device can trigger the transmission of the second information based on a certain trigger condition.

[0270] For example, the trigger condition can be that the energy of other signals received by the first communication device within a certain angle range (e.g., the first angle range) is greater than a certain threshold. Then, the first communication device can determine that it needs to request the first information through the second information, so as to perform the NTN signal transmission through the threshold indicated by the first information, so as to avoid or reduce the interference to the transmission process of the other signals.

[0271] For another example, the trigger condition can be that the first communication device determines that it will transmit the NTN signal to a certain angle range (e.g., the first angle range). In order to avoid the interference of the NTN signal to be transmitted to other systems, the first communication device can request the first information through the second information, so as to perform the NTN signal transmission through the threshold indicated by the first information, so as to avoid or reduce the interference to the transmission process of the other signals.

[0272] Optionally, in the above process, the second information transmitted by the first communication device in step S400 includes state information of the first communication device, and the state information of the first communication device is used to determine the first information. In other words, the second information for requesting the first information can include the state information of the first communication device, so that the receiver of the second information can provide the first information suitable for the state information of the first communication device for the first communication device based on the request of the second information, so that the first communication device can subsequently perform a corresponding signal transmission process based on the first information.

[0273] Optionally, the above state information is used to indicate at least one of the following:

[0274] The position of the first communication device (e.g., the second information transmitted by the second communication device subsequently indicates the angle and / or threshold suitable for the position);

[0275] The corresponding relationship between the position of the first communication device and the time (e.g., the corresponding relationship can be indicated by the ephemeris information of a satellite, and the second information transmitted by the second communication device subsequently indicates the angle and / or threshold suitable for the satellite ephemeris).

[0276] a frequency point or frequency domain resource of a communication beam supported by the first communication device (for example, the second information sent by the subsequent second communication device indicates an angle and / or a threshold value applicable to the frequency point or frequency domain resource) ;

[0277] a scanning angle range of a communication beam supported by the first communication device (for example, the second information sent by the subsequent second communication device indicates a first angle range included in the scanning angle range) ;

[0278] a transmission power of a communication beam supported by the first communication device (for example, the second information sent by the subsequent second communication device indicates a threshold value included in a range of the transmission power) ; or

[0279] an out-of-band radiation power of a communication beam supported by the first communication device (for example, the second information sent by the subsequent second communication device indicates a threshold value included in a range of the out-of-band radiation power).

[0280] Optionally, if the beam transmission power information carried by the second information does not exceed the radiation limit information, the second communication device can not send the corresponding configuration information (i.e. the first information) to save overhead.

[0281] Referring to Figure 8 , the embodiment of the present application provides a communication device 800, which comprises a transceiver unit 802 and a processing unit 801.

[0282] It should be understood that the communication device 800 can realize the functions of any communication device (such as the first communication device or the second communication device) in the above-mentioned method embodiments, and thus can also realize the beneficial effects possessed by the above-mentioned method embodiments. In the embodiment of the present application, the communication device 800 can be any communication device in the above-mentioned method embodiments, or an integrated circuit or element etc. inside any communication device in the above-mentioned method embodiments, such as a chip.

[0283] In a possible implementation manner, when the device 800 is used to execute the method performed by the first communication device in the foregoing embodiments, the transceiver unit 801 is configured to receive first information, the first information being used to indicate a threshold value of transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the transceiver unit 802 is configured to transmit the NTN signal based on the first information.

[0284] In another possible implementation manner, when the device 800 is used to execute the method performed by the network device in the foregoing embodiments, the processing unit 801 is configured to determine first information, the first information being used to indicate a threshold value of transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the transceiver unit 802 is configured to transmit the first information.

[0285] It should be noted that the information execution process and the corresponding technical effects of the units of the communication device 800 described above can be referred to the descriptions in the method embodiments of the present application, which will not be repeated here.

[0286] Please refer to Figure 9 Another schematic structural diagram of the communication device 900 provided by the present application is shown, which at least includes an input / output interface 901. Wherein, the communication device 900 can be a chip or an integrated circuit.

[0287] Optionally, the communication device further includes a logic circuit 902.

[0288] Wherein, Figure 8 The transceiver unit 802 can be a communication interface, which can be Figure 9 The input / output interface 901 in the communication interface can include an input interface and an output interface. Alternatively, the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0289] Optionally, the input / output interface 901 is configured to receive first information, the first information being used to indicate a threshold of transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the logic circuit 902 is configured to transmit the NTN signal based on the first information.

[0290] Optionally, the logic circuit 902 is configured to determine first information, the first information being used to indicate a threshold of transmission power of an NTN signal transmitted by the first communication device in a first angle range; and the input / output interface 901 is configured to transmit the first information.

[0291] Wherein, the logic circuit 902 and the input / output interface 901 can perform the method executed by any communication device (such as a terminal device or a network device) in the foregoing method embodiments and achieve the corresponding beneficial effects, which will not be repeated here.

[0292] In one possible implementation manner, Figure 8 The processing unit 801 can be Figure 9 The logic circuit 902 in the communication device.

[0293] Optionally, the logic circuit 902 can be a processing device, and the functions of the processing device can be partially or entirely implemented by software. Wherein, the functions of the processing device can be partially or entirely implemented by software.

[0294] Optionally, the processing device can include a memory and a processor, wherein the memory is configured to store a computer program, and the processor is configured to read and execute the computer program stored in the memory to perform the corresponding processing and / or steps in any one method embodiment.

[0295] Optionally, the processing device can only include a processor. The memory for storing the computer program is located outside the processing device, and the processor is connected with the memory through circuit / wire to read and execute the computer program stored in the memory. Among them, the memory and the processor can be integrated together, or can also be physically independent of each other.

[0296] Optionally, the processing device can be one or more chips, or one or more integrated circuits. For example, the processing device can be one or more field-programmable gate arrays (FPGA), application specific integrated circuits (ASIC), system on chips (SoC), central processor units (CPU), network processors (NP), digital signal processors (DSP), microcontroller units (MCU), programmable logic devices (PLD) or other integrated chips, or any combination of the above chips or processors, etc.

[0297] Please refer to Figure 10 The communication device 1000 involved in the above embodiments provided for the embodiments of the present application, which can be any of the communication devices in the above embodiments.

[0298] Among them, a possible logical structure diagram of the communication device 1000 can include but not limited to at least one processor 1001 and a communication interface 1002.

[0299] Further optionally, the device can also include at least one of a memory 1003, a bus 1004, and in the embodiments of the present application, the at least one processor 1001 is used to control the processing of the actions of the communication device 1000.

[0300] In addition, the processor 1001 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic, hardware components, or any combination thereof. It can implement or execute the various exemplary logical blocks, modules and circuits described in connection with the disclosure. The processor can also be a combination of implementing computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0301] It should be noted that, Figure 10 The communication apparatus 1000 specifically can be used to implement the steps implemented by the terminal device in the foregoing method embodiments, and achieve the corresponding technical effects of the terminal device, Figure 10 The specific implementation of the communication apparatus can refer to the description in the foregoing method embodiments, which will not be described here one by one.

[0302] Please refer to Figure 11 The foregoing embodiments of the present application provide a structure diagram of a communication apparatus involved in the embodiments, which can be specifically a network device in the foregoing embodiments, wherein the structure of the communication apparatus can refer to the structure shown in Figure 11 .

[0303] The communication apparatus includes at least one processor 1111 and at least one network interface 1114.

[0304] Optionally, the communication apparatus further includes at least one memory 1112, at least one transceiver 1113 and one or more antennas 1115. The processor 1111, the memory 1112, the transceiver 1113 and the network interface 1114 are connected, for example, through a bus, which can include various interfaces, transmission lines or buses in the embodiments of the present application, which are not limited in the embodiments. The antenna 1115 is connected to the transceiver 1113. The network interface 1114 is used for the communication apparatus to communicate with other communication devices through a communication link. For example, the network interface 1114 can include a network interface between the communication apparatus and the core network device, such as an S1 interface. The network interface can include a network interface between the communication apparatus and other communication apparatuses (such as other network devices or core network devices), such as an X2 or Xn interface.

[0305] The processor 1111 is mainly used for processing communication protocols and communication data, and controlling the whole communication device, executing software programs, processing data of the software programs, such as for supporting the communication device to perform the actions described in the embodiments. The communication device can include a baseband processor and a central processor, the baseband processor is mainly used for processing communication protocols and communication data, and the central processor is mainly used for controlling the whole terminal device, executing software programs, and processing data of the software programs. Figure 11 The processor 1111 in the terminal device can integrate the functions of the baseband processor and the central processor, and those skilled in the art can understand that the baseband processor and the central processor can also be independent processors interconnected by a bus or the like. Those skilled in the art can understand that the terminal device can include multiple baseband processors to adapt to different network modes, and the terminal device can include multiple central processors to enhance its processing capability, and various components of the terminal device can be connected by various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

[0306] The memory is mainly used for storing software programs and data. The memory 1112 can exist independently and be connected to the processor 1111. Alternatively, the memory 1112 can be integrated with the processor 1111, for example, integrated in a chip. The memory 1112 can store program codes for executing the technical solutions of the embodiments of the present application, and the processor 1111 controls the execution. Various computer programs executed can also be regarded as a driver of the processor 1111.

[0307] Figure 11 Only one memory and one processor are shown. In actual terminal devices, multiple processors and multiple memories can exist. The memory can also be referred to as a storage medium or a storage device, etc. The memory can be a storage element on the same chip as the processor, i.e. an on-chip storage element, or an independent storage element, and the embodiments of the present application do not limit this.

[0308] The transceiver 1113 can be configured to support the receiving or transmitting of radio frequency signals between the communication device and a terminal. The transceiver 1113 can be connected to the antenna 1115. The transceiver 1113 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 1115 can receive radio frequency signals, the receiver Rx of the transceiver 1113 is configured to receive the radio frequency signals from the antenna and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or the digital intermediate frequency signals to the processor 1111 for further processing, such as demodulation processing and decoding processing, by the processor 1111. In addition, the transmitter Tx in the transceiver 1113 is also configured to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 1111, and convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through the one or more antennas 1115. Specifically, the receiver Rx can selectively perform one or more levels of down-mixing processing and analog-to-digital conversion processing on the radio frequency signals to obtain the digital baseband signals or the digital intermediate frequency signals, and the order of the down-mixing processing and the analog-to-digital conversion processing can be adjustable. The transmitter Tx can selectively perform one or more levels of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signals or the digital intermediate frequency signals to obtain the radio frequency signals, and the order of the up-mixing processing and the digital-to-analog conversion processing can be adjustable. The digital baseband signals and the digital intermediate frequency signals can be collectively referred to as digital signals.

[0309] The transceiver 1113 can also be referred to as an interface unit, a transceiving unit, a transceiver, a transceiving device, an interface module, etc. Optionally, the devices in the interface unit for implementing the receiving function can be regarded as a receiving unit, and the devices in the interface unit for implementing the transmitting function can be regarded as a transmitting unit, that is, the interface unit includes a receiving unit and a transmitting unit. The receiving unit can also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0310] It should be noted that, Figure 11 The communication device shown can be specifically configured to implement the steps implemented by the network device in the foregoing method embodiment, and achieve the corresponding technical effects of the network device, Figure 11 The specific implementation of the communication device shown can be referred to the description in the foregoing method embodiments, which will not be repeated here.

[0311] The embodiments of the present application also provide a computer readable storage medium for storing one or more computer execution instructions, when the computer execution instructions are executed by a computer, the processor executes the method described in any of the possible implementation manners of the communication device (such as a terminal device or a network device) in the foregoing method embodiments.

[0312] The embodiment of the present application further provides a computer program product (or computer program), including instructions, when the instructions in the computer program product are executed by a processor, the processor executes the method of any possible implementation manner of the communication device (such as a terminal device or a network device) in the above method embodiment.

[0313] The embodiment of the present application further provides a chip system, including at least one processor, used for implementing the functions involved in any possible implementation manner of the communication device (such as a terminal device or a network device) in the above method embodiment.

[0314] Optionally, the chip system further includes an interface circuit, which provides program instructions and / or data for the at least one processor. In a possible design, the chip system can further include a memory, used for storing necessary program instructions and data of the terminal device. The chip system can be composed of a chip, or can include the chip and other discrete devices.

[0315] In a possible design, the chip system can further include a memory, used for storing necessary program instructions and data of the communication device in any of the above method embodiments. The chip system can be composed of a chip, or can include the chip and other discrete devices.

[0316] The embodiment of the present application further provides a communication system, and the network system architecture includes the first communication device and the second communication device in any of the above embodiments.

[0317] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other means. For example, the above-described device embodiments are illustrative, for example, the division of the units is a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0318] The units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0319] In addition, each function unit in each embodiment of the present application can be integrated in one processing module, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit. When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially contribute to or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0320] The above is only a specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the embodiments of the present application, which should be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, The method is applied to a first communication device, and the method includes: Receive first information, the first information being used to indicate a threshold value for the transmission power of the non-terrestrial network (NTN) signal transmitted by the first communication device within a first angular range; The NTN signal is sent based on the first information.

2. The method according to claim 1, characterized in that, The first information includes at least one of the following: The first indication information indicates the first angle range; The second indication information indicates the effective time corresponding to the threshold of the transmission power; The third indication information indicates the effective frequency point corresponding to the threshold of the transmission power; or The fourth indication information indicates the effective polarization information corresponding to the threshold of the transmission power.

3. The method according to claim 2, characterized in that, The first indication information indicates at least one of the following: The azimuth angle range of the NTN signal transmitted by the first communication device within the first angular range; The angular range of the pitch angle of the NTN signal transmitted by the first communication device within the first angular range; or The area covered by the NTN signal transmitted by the first communication device within the first angular range.

4. The method according to any one of claims 1 to 3, characterized in that, The threshold for transmission power includes at least one of the following: Equivalent Isotropic Radiated Power (EIRP) threshold, Ground-based Power Flux Density (PFD) threshold, Adjacent Channel Leakage Ratio (ALCR) threshold, or Out-of-band Ground-based PFD threshold.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: Send a second message, which is used to request the first message.

6. The method according to claim 5, characterized in that, The second information includes the status information of the first communication device, which is used to determine the first information.

7. The method according to claim 6, characterized in that, The status information is used to indicate at least one of the following: The location of the first communication device; The correspondence between the location and time of the first communication device; The frequency points of the communication beams supported by the first communication device; The scanning angle range of the communication beam supported by the first communication device; The transmit power of the communication beam supported by the first communication device; or The out-of-band radiated power of the communication beam supported by the first communication device.

8. A communication method, characterized in that, include: Determine first information, which is used to indicate a threshold value for the transmission power of the non-terrestrial network (NTN) signal transmitted by the first communication device within a first angular range; Send the first message.

9. The method according to claim 8, characterized in that, The first information includes at least one of the following: The first indication information indicates the first angle range; The second indication information indicates the effective time corresponding to the threshold of the transmission power; The third indication information indicates the effective frequency point corresponding to the threshold of the transmission power; or The fourth indication information indicates the effective polarization information corresponding to the threshold of the transmission power.

10. The method according to claim 9, characterized in that, The first indication information indicates at least one of the following: The azimuth angle range of the NTN signal transmitted by the first communication device within the first angular range; The angular range of the pitch angle of the NTN signal transmitted by the first communication device within the first angular range; or The area covered by the NTN signal transmitted by the first communication device within the first angular range.

11. The method according to any one of claims 8 to 10, characterized in that, The threshold for transmission power includes at least one of the following: Equivalent Isotropic Radiated Power (EIRP) threshold, Ground-based Power Flux Density (PFD) threshold, Adjacent Channel Leakage Ratio (ALCR) threshold, or Out-of-band Ground-based PFD threshold.

12. The method according to any one of claims 8 to 11, characterized in that, The method further includes: Receive second information, which is used to request the first information.

13. The method according to claim 12, characterized in that, The second information includes the status information of the first communication device, which is used to determine the first information.

14. The method according to claim 13, characterized in that, The status information is used to indicate at least one of the following: The location of the first communication device; The correspondence between the location and time of the first communication device; The frequency points of the communication beams supported by the first communication device; The scanning angle range of the communication beam supported by the first communication device; The transmit power of the communication beam supported by the first communication device; or The out-of-band radiated power of the communication beam supported by the first communication device.

15. A communication device, characterized in that, It includes at least one processor; the at least one processor is coupled to at least one memory; the at least one processor is used to perform the method as described in any one of claims 1 to 14.

16. A chip or chip system, characterized in that, It includes at least one processor, said at least one processor being used to implement the method as claimed in any one of claims 1 to 14.

17. A readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1 to 14.

18. A computer program product, characterized in that, It includes a computer program or instructions that, when executed by a communication device, implement the method as described in any one of claims 1 to 14.

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