NTN communication method and communication device

Abstract

Provided is a communication method, the method comprising: a first device can determine a first pilot configuration, the first pilot configuration corresponding to a first time period, the first time period being a time period for activating the first pilot configuration, or the first pilot configuration corresponding to a first position, the first position is a geographic position where the first pilot configuration is sent; and performing interference detection based on the first pilot frequency configuration. When a satellite is in a moving state, for a receiving end, along with time change, interference measurement pilot frequency changes, the receiving end (first equipment) can determine pilot frequency associated with current time information (a first time period) or associated with sending end position information (a first position), interference measurement is carried out based on the pilot frequency, invalid measurement of the receiving end is avoided, and measurement overhead is saved.

Description

Technical Field

[0001] The present application relates to satellite networks, and more specifically, to an NTN communication method and a communication device. Background Art

[0002] Non-terrestrial networks (NTN) such as satellite communication have significant advantages such as global coverage, long-distance transmission, flexible networking, convenient deployment, and being unrestricted by geographical conditions, and have been widely used in many fields such as maritime communication, positioning and navigation, disaster relief, scientific experiments, video broadcasting, and earth observation.

[0003] In a satellite communication system, there are scenarios where multiple communication systems coexist. For example, the coexistence technology of an inter-satellite communication system (hereinafter simply referred to as the satellite-satellite system) and a satellite-cellular network communication system (hereinafter simply referred to as the satellite-terrestrial system). The implementation of the coexistence mechanism depends on information such as satellite orbits and beam pointing. Therefore, it is necessary to measure the interference between systems. In the scenario of system coexistence, the movement of satellites causes the interfering end and the interfered end to change dynamically, which may lead to problems such as redundant measurements or frequent configuration updates.

[0004] Therefore, there is an urgent need for an interference measurement scheme to avoid unnecessary pilot measurement overhead and improve the interference measurement efficiency. Summary of the Invention

[0005] The present application provides an NTN communication method. By associating the interference measurement pilot configuration with the activation time or the transmitter location, the receiving end can determine the pilot to be measured, thereby reducing the pilot measurement overhead and improving the interference measurement efficiency.

[0006] In a first aspect, an NTN communication method is provided. This method can be executed by a first device, or can also be executed by a chip or circuit configured in the first device. The present application does not make any limitations in this regard.

[0007] The method includes: determining a first pilot configuration, where the first pilot configuration corresponds to a first time period, and the first time period is the time period for activating the first pilot configuration, or the first pilot configuration corresponds to a first location, and the first location is the geographical location where the first pilot configuration is sent; performing interference detection based on the first pilot configuration.

[0008] In the present application, the first device is a receiving device, and the first device may include a terminal device or an access network device.

[0009] In the present application, the second device is a transmitting device, and the second device may include a satellite or an access network device deployed on the satellite.

[0010] In this application, the first device can be a device in a cellular cell in a satellite-terrestrial system, and the second device can be a device in a satellite cell in a satellite-satellite system. The first device and the second device can send and detect pilots to each other to determine the interference situation.

[0011] In the NTN scenario, the satellite is in a moving state. For the receiving end, as time changes, the interference measurement pilot also changes. In the embodiments of this application, the receiving end (the first device) can determine a pilot associated with the current time information (the first time period) or the transmitting end location information (the first location), and perform interference measurement based on this pilot, avoiding invalid measurements at the receiving end and saving measurement overhead.

[0012] In combination with the first aspect, in some implementation manners of the first aspect, receive at least one second pilot configuration from the second device. Each second pilot configuration in the at least one second pilot configuration corresponds to an activation time period, and each second pilot configuration is associated with at least one third device; determine the first pilot configuration according to the at least one second pilot configuration, where the first pilot configuration is one of the at least one second pilot configurations.

[0013] Based on the above technical solution, the measurement pilot can be bound to the satellite. The transmitting end can configure multiple interference measurement pilot configurations associated with different activation times for the receiving end. The receiving end determines the pilot to be measured based on the time information, thereby reducing unnecessary measurements, reducing the overhead of invalid measurements, and reducing the overhead of configuration updates.

[0014] In combination with the first aspect, in some implementation manners of the first aspect, the determining the first pilot configuration according to the at least one second pilot configuration includes: determining the first pilot configuration according to an activation time period corresponding to each second pilot configuration.

[0015] In combination with the first aspect, in some implementation manners of the first aspect, receive the first pilot configuration from the second device, where the first location corresponding to the first pilot configuration is the geographical location where the second device is located when sending the first pilot configuration.

[0016] Based on this technical solution, the first device can receive the pilot configuration to be measured from the second device, facilitating the receiving end (the first device) to identify the source of interference.

[0017] In combination with the first aspect, in some implementation manners of the first aspect, the first pilot configuration is determined by the second device from at least one third pilot configuration. Each third pilot configuration in the at least one third pilot configuration corresponds to a different location where the second device is located, and each third pilot configuration is associated with at least one third device.

[0018] Based on the above technical solution, the measurement pilot can be bound to the spatial position, enabling the transmitting end to use different measurement pilots for transmission in different regions and different service directions. The transmitting end can configure the interference measurement pilot configuration associated with the current position for the receiving end, and the receiving end performs interference pilot measurement based on the configuration, facilitating the receiving end to identify the source of interference, reducing the overhead of ineffective measurement, and reducing the overhead of configuration update.

[0019] In combination with the first aspect, in some implementation manners of the first aspect, interference detection is performed based on the first pilot configuration to obtain a first value; when the first value is higher than a first threshold, the identifier of the third device associated with the first pilot configuration is sent to the second device or the core network device, and interference occurs between the third device and the second device.

[0020] Based on this technical solution, the first device can perform interference measurement based on the determined first pilot configuration and report the interference measurement result to the second device or the core network device.

[0021] In combination with the first aspect, in some implementation manners of the first aspect, the interference detection based on the first pilot configuration to obtain a first value includes: performing interference detection based on a first angle range associated with the first pilot configuration.

[0022] Based on this technical solution, different interference measurement pilots are activated using the angle range, adapting to the scenario where the receiving end has strong directivity, reducing unnecessary measurements in a given direction, and being conducive to accurate feedback, improving the reuse rate of interference measurement pilots, and enhancing the efficiency of pilot measurement.

[0023] In combination with the first aspect, in some implementation manners of the first aspect, the first angle range associated with the first pilot configuration is received, and the first angle range is used to indicate the receiving or transmitting direction of the pilot corresponding to the first pilot configuration.

[0024] In combination with the first aspect, in some implementation manners of the first aspect, the first angle range is the angle range of the zenith angle and the azimuth angle of the local coordinate system of the first device; or, the first angle range is the angle range indicated by the reference direction of the first device and the angular range with respect to the reference direction.

[0025] In combination with the first aspect, in some implementation manners of the first aspect, the first device is an access network device or a terminal device.

[0026] In combination with the first aspect, in some implementation manners of the first aspect, the second device is a satellite or an access network device on the satellite.

[0027] Second aspect, a NTN communication method is provided. This method can be executed by a second device, or can be executed by a chip or circuit configured in the second device. This application does not make any limitation in this regard.

[0028] The method includes: determining at least one second pilot configuration, each second pilot configuration in the at least one second pilot configuration corresponding to an activation time period, and each second pilot configuration being associated with at least one third device; sending the at least one second pilot configuration to a first device, each second pilot configuration in the at least one second pilot configuration being used for the first device to perform interference detection during the corresponding activation time period.

[0029] Descriptions of the first device and the second device can refer to the first aspect and will not be elaborated here.

[0030] In the NTN scenario, the satellite is in a moving state. For the receiving end, as time changes, the interference measurement pilots change accordingly. In the embodiments of this application, the transmitting end (the second device) can configure multiple interference measurement pilot configurations corresponding to different activation times for the receiving end (the first device), so that the receiving end can determine the pilot to be detected based on the current time information, which is beneficial to the receiving end for effective measurement, saves measurement overhead, and improves measurement efficiency.

[0031] In combination with the second aspect, in some implementation manners of the second aspect, receive an identifier of a third device, where the third device is associated with the first pilot configuration, and the first pilot configuration is one of the at least one second pilot configurations.

[0032] In this technical solution, the second device receives the interference measurement result of the first device, specifically including the identifier of the third device that has interference with the second device obtained by measurement.

[0033] In combination with the second aspect, in some implementation manners of the second aspect, send an angle range associated with each second pilot configuration in the at least one second pilot configuration, where the angle range associated with each second pilot configuration is used to indicate the receiving or transmitting direction of the pilot corresponding to each second pilot configuration, and the first angle range is the angle range associated with the first pilot configuration.

[0034] In this technical solution, the second device not only configures multiple interference measurement pilot configurations corresponding to different activation times for the first device, but also configures the angle ranges associated with each pilot configuration, activates different interference measurement pilots using the angle ranges, adapts to the scenario where the receiving end has strong directivity, reduces unnecessary measurements in a given direction, and is beneficial for accurate feedback, improves the reuse rate of interference measurement pilots, and improves the efficiency of pilot measurement.

[0035] In combination with the second aspect, in some implementations of the second aspect, the angle range is the zenith angle and azimuth angle range of the local coordinate system of the first device; or, the angle range is the angle range indicated by the reference direction of the first device and the angular spread with respect to the reference direction.

[0036] In combination with the second aspect, in some implementations of the second aspect, the first device is an access network device or a terminal device.

[0037] In combination with the second aspect, in some implementations of the second aspect, the second device is a satellite or an access network device on the satellite.

[0038] In a third aspect, a NTN communication method is provided. This method can be executed by a third device, or alternatively, can be executed by a chip or circuit configured in the third device. This application does not make any limitations in this regard.

[0039] The method includes: determining a first pilot configuration according to at least one third pilot configuration, where each third pilot configuration in the at least one third pilot configuration corresponds to a different position where the second device is located, each third pilot configuration is associated with at least one third device, and the first pilot configuration is the pilot configuration corresponding to the first position; and sending the first pilot configuration.

[0040] The descriptions of the first device and the second device can refer to the first aspect and will not be elaborated here.

[0041] In the NTN scenario, the satellite is in a moving state. For the receiving end, as time changes, the interference measurement pilot changes accordingly. In the embodiments of this application, the transmitting end (the second device) can send the interference measurement pilot configuration corresponding to the geographical location to the receiving end (the first device), and the receiving end performs interference measurement based on the configured pilot, which facilitates the receiving end to identify the source of interference, reduces the overhead of invalid measurements, and reduces the overhead of configuration updates.

[0042] In combination with the third aspect, in some implementations of the third aspect, the determining the first pilot configuration according to at least one third pilot configuration includes: determining the first pilot configuration according to the different positions corresponding to each third pilot configuration in the at least one third pilot configuration, and the first position corresponding to the first pilot configuration is the geographical location where the second device sends the first pilot configuration.

[0043] In this technical solution, the measurement pilot can be bound to the spatial position, enabling the transmitting end to use different measurement pilots for transmission in different regions and different service directions. The transmitting end can configure the interference measurement pilot configuration associated with the current position for the receiving end.

[0044] In combination with a third aspect, in some implementation manners of the third aspect, an identifier of a third device is received, where the third device is associated with the first pilot configuration, and the first pilot configuration is one of the at least one third pilot configurations.

[0045] In this technical solution, the second device receives the interference measurement result of the first device, specifically including the identifier of the third device that has interference with the second device obtained by measurement.

[0046] In combination with a third aspect, in some implementation manners of the third aspect, the first angle range associated with the first pilot configuration is sent, where the first angle range is used to indicate the receiving or transmitting direction of the pilot corresponding to the first pilot configuration.

[0047] In this technical solution, the second device not only configures multiple interference measurement pilot configurations corresponding to different activation times for the first device, but also configures the angle range associated with each pilot configuration, activates different interference measurement pilots using the angle range, adapts to the scenario where the receiving end has strong directivity, reduces unnecessary measurements in a given direction, and is conducive to accurate feedback, improves the reuse rate of interference measurement pilots, and improves the efficiency of pilot measurement.

[0048] In combination with a third aspect, in some implementation manners of the third aspect, the first angle range is the angle range of the zenith angle and azimuth angle indicated by the local coordinate system of the first device; or, the first angle range is the angle range indicated by the reference direction of the first device and the angular range with respect to the reference direction.

[0049] In combination with a third aspect, in some implementation manners of the third aspect, the first device is an access network device or a terminal device.

[0050] In combination with a third aspect, in some implementation manners of the third aspect, the second device is a satellite or an access network device on the satellite.

[0051] In a fourth aspect, an NTN communication device is provided. The device may be the first device, or may also be a chip or circuit configured in the first device, which is not limited in this application.

[0052] The device includes: a processing unit, configured to determine a first pilot configuration, where the first pilot configuration corresponds to a first time period, and the first time period is the time period for activating the first pilot configuration, or the first pilot configuration corresponds to a first location, and the first location is the geographical location where the first pilot configuration is sent; the processing unit is further configured to perform interference detection based on the first pilot configuration.

[0053] In combination with the fourth aspect, in some implementations of the fourth aspect, a transceiver unit is configured to receive at least one second pilot configuration from a second device, each second pilot configuration in the at least one second pilot configuration corresponding to an activation time period, and each second pilot configuration being associated with at least one third device; a processing unit is further configured to determine the first pilot configuration according to the at least one second pilot configuration, where the first pilot configuration is one of the at least one second pilot configurations.

[0054] In combination with the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine the first pilot configuration according to an activation time period corresponding to each second pilot configuration.

[0055] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to receive the first pilot configuration from the second device, where the first location corresponding to the first pilot configuration is the geographical location where the second device sends the first pilot configuration.

[0056] In combination with the fourth aspect, in some implementations of the fourth aspect, the first pilot configuration is determined by the second device from at least one third pilot configuration, each third pilot configuration in the at least one third pilot configuration corresponding to a different location where the second device is located, and each third pilot configuration being associated with at least one third device.

[0057] In combination with the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to perform interference detection based on the first pilot configuration to obtain a first value; when the first value is higher than a first threshold, the transceiver unit is further configured to send an identifier of the third device associated with the first pilot configuration to the second device or a core network device, where interference occurs between the third device and the second device.

[0058] In combination with the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to perform interference detection based on a first angle range associated with the first pilot configuration.

[0059] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to receive the first angle range associated with the first pilot configuration, where the first angle range is used to indicate a receiving or transmitting direction of a pilot corresponding to the first pilot configuration.

[0060] In combination with the fourth aspect, in some implementations of the fourth aspect, the first angle range is an angle range of a zenith angle and an azimuth angle in a local coordinate system of the first device; or, the first angle range is an angle range indicated by a reference direction of the first device and an angular range with respect to the reference direction.

[0061] In combination with the fourth aspect, in some implementations of the fourth aspect, the first device is an access network device or a terminal device.

[0062] In combination with the fourth aspect, in some implementations of the fourth aspect, the second device is a satellite or an access network device on the satellite.

[0063] In a fifth aspect, there is provided an NTN communication device, which may be a second device, or may also be a chip or circuit configured in the second device, and the present application does not limit this.

[0064] The device includes: a processing unit, configured to determine at least one second pilot configuration, each second pilot configuration in the at least one second pilot configuration corresponding to an activation time period, and each second pilot configuration being associated with at least one third device; a transceiver unit, configured to send the at least one second pilot configuration to a first device, and each second pilot configuration in the at least one second pilot configuration being used for the first device to perform interference detection during the corresponding activation time period.

[0065] In combination with the fifth aspect, in some implementations of the fifth aspect, the transceiver unit is further configured to receive an identifier of a third device, the third device being associated with the first pilot configuration, and the first pilot configuration being one of the at least one second pilot configurations.

[0066] In combination with the fifth aspect, in some implementations of the fifth aspect, the transceiver unit is further configured to send an angular range associated with each second pilot configuration in the at least one second pilot configuration, and the angular range associated with each second pilot configuration is used to indicate the reception or transmission direction of the pilot corresponding to each second pilot configuration, and the first angular range is the angular range associated with the first pilot configuration.

[0067] In combination with the fifth aspect, in some implementations of the fifth aspect, the angular range is the angular range of the zenith angle and the azimuth angle in the local coordinate system of the first device; or, the angular range is the angular range indicated by the reference direction of the first device and the angular range of the angle with respect to the reference direction.

[0068] In combination with the fifth aspect, in some implementations of the fifth aspect, the first device is an access network device or a terminal device.

[0069] In combination with the fifth aspect, in some implementations of the fifth aspect, the second device is a satellite or an access network device on the satellite.

[0070] In a sixth aspect, there is provided an NTN communication device, which may be a third device, or may also be a chip or circuit configured in the third device, and the present application does not limit this.

[0071] The apparatus includes: a processing unit, configured to determine a first pilot configuration according to at least one third pilot configuration, each of the at least one third pilot configuration corresponding to a different location where the second device is located, each of the third pilot configurations being associated with at least one third device, and the first pilot configuration being a pilot configuration corresponding to a first location; and a transceiver unit, configured to send the first pilot configuration.

[0072] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the processing unit is further configured to determine the first pilot configuration according to different locations corresponding to each of the at least one third pilot configuration, and the first location corresponding to the first pilot configuration is the geographical location where the second device sends the first pilot configuration.

[0073] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the transceiver unit is further configured to receive an identifier of a third device, where the third device is associated with the first pilot configuration, and the first pilot configuration is one of the at least one third pilot configuration.

[0074] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the transceiver unit is further configured to send a first angle range associated with the first pilot configuration, where the first angle range is used to indicate a receiving or sending direction of a pilot corresponding to the first pilot configuration.

[0075] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the first angle range is an angle range of a zenith angle and an azimuth angle indicated by a local coordinate system of the first device; or, the first angle range is an angle range indicated by a reference direction of the first device and an angular range with respect to the reference direction.

[0076] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the first device is an access network device or a terminal device.

[0077] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the second device is a satellite or an access network device on the satellite.

[0078] A seventh aspect provides a communication apparatus, configured to perform the method provided in any one of the first aspect to the third aspect. Specifically, the communication apparatus may include units and / or modules configured to perform the method provided in any one of the above implementation manners of the first aspect to the third aspect, such as a processing unit and / or a communication unit.

[0079] In one implementation, the communication device includes a communication unit and a processing unit. The communication unit can be a transceiver, or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0080] In another implementation, the communication device is a chip, a chip system or a circuit in a network device. When the communication device is a chip, a chip system or a circuit in a network device, the communication unit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, etc. on the chip, the chip system or the circuit; the processing unit can be at least one processor, a processing circuit or a logic circuit, etc.

[0081] In an eighth aspect, a communication device is provided, including a processor. Optionally, a memory is further included. The processor is used to control the transceiver to transmit and receive signals. The memory is used to store a computer program. The processor is used to call and run the computer program from the memory, so that the sending device executes the method in any one of the possible implementation manners in any of the first aspect to the third aspect above.

[0082] Optionally, the processor is one or more, and the memory is one or more.

[0083] Optionally, the memory can be integrated with the processor, or the memory is separately arranged from the processor.

[0084] Optionally, the network device further includes a transceiver, and the transceiver can specifically be a transmitter and a receiver.

[0085] In a ninth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program or code. When the computer program or code runs on a computer, the computer executes the method in any one of the possible implementation manners in any of the first aspect to the third aspect above.

[0086] In a tenth aspect, a chip is provided, including at least one processor. The at least one processor is coupled to a memory. The memory is used to store a computer program. The processor is used to call and run the computer program from the memory, so that a sending device equipped with the chip system executes the method in any one of the possible implementation manners in any of the first aspect to the third aspect above.

[0087] Wherein, the chip can include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

[0088] In a tenth aspect, a computer program product is provided, which includes computer program code that, when run on a sending device, executes the method in any one of the possible implementations in the first to third aspects described above.

[0089] For the beneficial effects of the fourth to tenth aspects, reference may be made to the beneficial effects of the first to third aspects, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] Figure 1 FIG. is a schematic diagram of an architecture 100 of a communication system applicable to an embodiment of the present application.

[0091] Figure 2 FIG. is a schematic diagram of an architecture 200 of a communication system applicable to an embodiment of the present application.

[0092] Figure 3 FIG. is a schematic diagram of an architecture 300 of a communication system applicable to an embodiment of the present application.

[0093] Figure 4 FIG. is a schematic diagram of an architecture 400 of a communication system applicable to an embodiment of the present application.

[0094] Figure 5 FIG. is a schematic diagram of an architecture 500 of a communication system applicable to an embodiment of the present application.

[0095] Figure 6 FIG. is a schematic diagram of a coexistence scenario of a communication system applicable to an embodiment of the present application.

[0096] Figure 7 FIG. is a schematic flowchart of an NTN communication method 700 applicable to an embodiment of the present application.

[0097] Figure 8 FIG. is a schematic flowchart of an NTN communication method 800 applicable to an embodiment of the present application.

[0098] Figure 9 FIG. is a schematic flowchart of an NTN communication method 900 applicable to an embodiment of the present application.

[0099] Figure 10 FIG. is a block diagram of the structure of a communication device applicable to an embodiment of the present application.

[0100] Figure 11 FIG. is a block diagram of the structure of a communication device applicable to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0101] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0102] The technical solutions provided in this application can be applied to various communication systems, such as: the 5th generation (5G) or new radio (NR) system, the long term evolution (LTE) system, the LTE frequency division duplex (FDD) system, the LTE time division duplex (TDD) system, etc. The technical solutions provided in this application can also be applied to future communication systems, such as the 6th generation mobile communication system. The technical solutions provided in this application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and the internet of things (IoT) communication system or other communication systems.

[0103] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the protection scope of this application.

[0104] First, a communication system applicable to this application will be briefly introduced as follows.

[0105] Figure 1 is a schematic diagram of the architecture 100 of the communication system applicable to the embodiments of this application. As Figure 1 shown, the ground mobile terminal UE accesses the network through the 5G new air interface. The 5G access network device is deployed on the satellite and is connected to the core network on the ground through a 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 access network devices. Figure 1 The various network elements in [] and their interface descriptions are as follows:

[0106] Terminal device: A mobile device that supports the 5G new air interface, typically such as a mobile phone, tablet, etc. It can access the satellite network through the air interface and initiate services such as calls and Internet access.

[0107] 5G access network device: mainly provides wireless access services, schedules wireless resources for access terminals, provides reliable wireless transmission protocols and data encryption protocols, etc., for example, base stations, etc.

[0108] 5G Core Network: Services such as user access control, mobility management, session management, user security authentication, and charging. It consists of multiple functional units and can be divided into control plane and data plane functional entities. The Access and Mobility Management Function (AMF) is responsible for user access management, security authentication, and mobility management. The User Plane Function (UPF) is responsible for managing functions such as the transmission of user plane data and traffic statistics.

[0109] Ground Station: Responsible for forwarding signaling and service data between satellite access network devices and the 5G core network.

[0110] 5G New Radio: The wireless link between the terminal and the access network device.

[0111] Xn Interface: The interface between 5G access network devices, mainly used for signaling interactions such as handover.

[0112] NG Interface: The interface between 5G access network devices and the 5G core network, mainly for interacting high-layer signaling of the core network (Non-Access Stratum, NAS) and other signaling, as well as user service data.

[0113] In the Non-Terrestrial Network (NTN), multiple NTN-based RAN architectures (NTN-RAN architectures) are defined. The following gives examples of RAN architectures applicable to NTN.

[0114] Figure 2 It is a schematic diagram of an architecture 200 of the communication system applicable to the embodiments of the present application. Figure 2 The shown architecture is named the RAN architecture with transparent satellite. As Figure 2As shown, in the transparent scenario, the role of the satellite is to perform frequency conversion and radio frequency amplification. It is equivalent to an analog radio frequency repeater. Therefore, the satellite replicates the NR Uu radio interface signal from the feeder link (between the NTN gateway and the satellite) to the service link (between the satellite and the UE), and vice versa. The satellite radio interface (SRI) on the feeder link transmits the NR-Uu interface signal, that is, the satellite does not terminate the NR Uu interface signal but replicates it. The NTN gateway supports all the necessary functions for forwarding the NR-Uu interface signal. Different transmission satellites can be connected to the same ground gNB.

[0115] Figure 3 It is a schematic diagram of another architecture 300 of the communication system applicable to the embodiments of the present application. Figure 3 The shown architecture is named regenerative satellite without ISL (inter-satellite link). In this architecture, the satellite acts as a base station to achieve the regeneration of the signal received from the ground. That is, the NR-Uu radio interface signal is transmitted on the service link between the UE and the satellite, and the satellite radio interface (SRI) signal is transmitted on the feeder link between the NTN gateway and the satellite. The SRI interface is a transmission link between the NTN gateway and the satellite. The NG interface signal is transmitted to the NTN gateway through the SRI interface and then forwarded by the NTN gateway to the core network device on the ground. The process of the NG interface signal being transmitted from the ground core network device to the satellite base station is similar and will not be elaborated here.

[0116] Figure 4 It is a schematic diagram of another architecture 400 of the communication system applicable to the embodiments of the present application. Figure 4 The shown architecture is named regenerative satellite with ISL. In this scenario, the satellite also acts as a base station. The difference from the previous scenario is that there is an ISL in this scenario. The ISL is an inter-satellite transmission link. As shown in the above figure, the UE served by an on-board base station can access the 5G core network through the ISL. The base stations on different satellites can be connected to the same ground 5G core network.

[0117] Figure 5 It is a schematic diagram of another architecture 500 of the communication system applicable to the embodiments of the present application. Figure 5The architecture shown is named NG-RAN with a regenerative satellite based on gNB-DU. In this scenario, the CU and DU of the base station are separated. The satellite acts as the DU of the base station on the satellite. The satellite realizes the regeneration of the signal received from the ground, that is, transmits the NR-Uu radio interface signal on the service link between the UE and the satellite, and transmits the satellite radio interface (SRI) signal on the feeder link between the NTN gateway and the satellite. The satellite radio interface is a transmission link that can transmit the logical interface F1 signal of the 3GPP standard. On the satellite radio interface, the F1 protocol signal is transmitted. The satellite can provide the inter-satellite link ISL. The NTN gateway is a transmission network layer node and supports all necessary transmission protocols. The DUs on different satellites can be connected to the same ground CU.

[0118] It should be noted that the above RAN architecture is only for illustrative purposes and may also be used in other NTN architectures, or in 4G, 5G, and future wireless network architectures. The embodiments of this application do not limit this.

[0119] Currently, we note that satellite equipment is limited by manufacturing and launch costs, and both on-satellite data processing capabilities and launch power are restricted. Currently, satellite communication networks cannot provide communication rates comparable to terrestrial communication networks for UEs. To break through this limitation and improve the overall signal processing capabilities and communication throughput of satellite networks, satellite operators are preparing to launch giant low-earth orbit constellations, that is, to make up for the limitations of the communication capabilities of single satellites by increasing the number of satellites. In future NTN communication systems, after a UE accesses the system, the UE can be "visible" to multiple communicable satellites for a period of time. At this time, multiple satellites can provide communication services for the UE, which provides a basic condition for multi-satellite cooperative transmission.

[0120] In the multi-satellite cooperative transmission scenario, there are situations where multiple communication systems coexist. For example, there are coexistence technologies for inter-satellite communication systems (hereinafter referred to as star-star systems) and satellite-cellular network communication systems (hereinafter referred to as satellite-terrestrial systems), that is, two or more systems use the same spectrum on the premise that the interference is acceptable.

[0121] Refer to Figure 6 , as an example, Figure 6 shows a schematic diagram of the communication system coexistence scenario. As Figure 6 shown, the satellite cells of the star-star system can communicate with the satellite, and the cellular cells of the satellite-terrestrial system can also communicate with the satellite.

[0122] Exemplarily, in order to achieve the coexistence of the two communication systems, a spatial isolation method can be adopted.

[0123] Specifically, multiple systems in the low-frequency band generate isolation in space through an "electronic fence". Different systems use (partially) the same frequency band during deployment and maintain geographical isolation at a sufficient distance to achieve limited coexistence of the same frequency. For example, Figure 6 As shown, the satellite cell and the cellular cell can be distributed at a sufficient distance. After the signal transmitted by the cellular ground device passes through the "electronic fence" and reaches the ground device of the satellite system, the signal strength is already low enough and does not have a significant impact. Vice versa. At the same time, after the cellular device signal reaches the satellite of the satellite system, it undergoes signal attenuation and enters the sidelobe of the satellite, and the received signal strength is also low enough and does not have a significant impact. Vice versa.

[0124] Exemplarily, in order to achieve the coexistence of two communication systems, an angular isolation method can also be adopted.

[0125] Specifically, the high-frequency transceiver can generate highly directive beams. Multiple systems achieve coexistence of the same frequency at the same location by generating narrow beams with angular isolation. For example, the transceiver beams of the cellular system are in the "lower right" and "upper left" directions, and the transceiver beams of the satellite system are in the "lower left" and "upper right" directions. Since there is sufficient angular isolation between the beam directions of the two systems, the beam signals of the two systems only enter the sidelobes of each other, so the received interference signal strength is low enough and does not have a significant impact.

[0126] The aforementioned coexistence mechanism based on planning and design assumes that information such as satellite orbits, beam directions, and antenna patterns is fully known. Based on this, the service area range, angular range, and orbit range that the satellite can serve are designed. There is a risk of failure during actual operation. Specifically, the actual system requires some flexibility. For example, after the satellite is launched, the antenna pattern may change uncontrollably due to hardware status changes, resulting in inconsistent actual interference and planning, and adjustment is required. The prior planning scheme may need to be adjusted due to redundancy or residual interference in practice. During the process of planning adjustment, the interference emitted by the satellite needs to be detected.

[0127] In the cellular network, the presence of interference can be determined by the receiving end detecting the remote interference management reference signal (RIM-RS) transmitted by the transmitting end. For example, two base stations with potential interference risks send a pre-agreed RIM-RS. The time-frequency code configuration of the RIM-RS is associated with the Set ID. One Set ID labels one or more nearby BSs (RIM-RS <-> Set ID <-> BS). The receiving end BS detects the pre-agreed RIM-RS. If the detected energy is higher than the threshold, it indicates that there is interference between this BS and the BS of the Set ID associated with the RIM-RS.

[0128] In a scenario where a satellite-ground system and a satellite-satellite system coexist, the movement of satellites causes the interfering end and the interfered end to change dynamically, resulting in the problem of frequent updates of redundant measurements or configurations.

[0129] In view of this, embodiments of the present application provide a communication solution. By associating interference measurement pilot configurations with different trigger conditions, the receiving end is enabled to select measurement pilots based on different trigger conditions, thereby reducing pilot measurement overhead and improving interference measurement efficiency.

[0130] The following will detail the communication method provided by the embodiments of the present application in conjunction with the accompanying drawings. The embodiments provided by the present application can be applied to the above Figures 1 to 5 shown communication system, without limitation.

[0131] The following details the solution of the present application.

[0132] Figure 7 is a schematic flowchart of an NTN communication method provided by an embodiment of the present application. For ease of description below, method 700 is exemplarily described with the execution subject being a first device (receiving end). It can be understood that this first device can be a component of the first device (such as a chip or a circuit), without limitation.

[0133] In embodiments of the present application, as a receiving device, the first device may include a terminal device or an access network device, and the present application makes no limitation thereto.

[0134] In embodiments of the present application, as a sending device, the second device may include a satellite or an access network device deployed on the satellite.

[0135] In embodiments of the present application, the core network device may be an operation and management (OAM) module.

[0136] In the present application, the first device may be a device in a cellular cell in a satellite-ground system, and the second device may be a device in a satellite cell in a satellite-satellite system. The first device and the second device may send and detect pilots to each other to determine the interference situation.

[0137] Figure 7 The method 700 shown may include the following steps.

[0138] S710, the first device determines a first pilot configuration.

[0139] In the present application, the first pilot configuration includes video code resources for interference detection, and interference measurement can be performed based on this first pilot configuration.

[0140] In one implementation, the first pilot configuration corresponds to a first time period.

[0141] Among them, the first time period is the time period when the first device activates the first pilot configuration. In other words, the first time period is the time period when the first device performs interference detection based on the first pilot configuration, or it can be said to be the effective time period of the first pilot configuration.

[0142] It can be understood that in the NTN scenario, the satellite is in a moving state. For the first device, as time changes, the satellite serving the terminal will also change, and the interference measurement pilot will change accordingly. That is to say, at different times, the pilots that the first device needs to detect are different.

[0143] In this application, the first pilot configuration is associated with the activation time (the first time period), and interference measurement is performed at the corresponding activation time.

[0144] In this application, the first pilot configuration corresponds to the first time period. It can also be said that the first pilot configuration is associated with the first time period, or in other words, the first pilot configuration has a corresponding relationship or an association relationship with the first time period. All descriptions such as activating the first pilot configuration or performing interference detection in the first time period can be equivalently replaced, and the embodiments of this application do not make any limitations in this regard.

[0145] It can be understood that the time period is only one way to describe time information. In fact, it can also be replaced with similar descriptions. For example, the first pilot configuration corresponds to the first activation time, which is the start time of interference detection, and the detection duration can be pre-configured or default to a fixed duration; another example is that the first pilot configuration corresponds to the first activation time and the first deactivation time, and the first deactivation time is used to specify the measurement cut-off time. All such descriptions are equivalent replacements, and the embodiments of this application do not make any limitations in this regard. In the embodiments of this application, the time period is used as an example for description.

[0146] The following will detail how to determine the first pilot configuration associated with the first time period.

[0147] In one possible implementation, the first device receives at least one second pilot configuration from the second device and determines the first pilot configuration according to the at least one second pilot configuration.

[0148] Correspondingly, the second device sends the above at least one second pilot configuration to the first device.

[0149] The first pilot configuration is one of the above at least one second pilot configurations.

[0150] Among them, each of the at least one second pilot configurations corresponds to an activation time period, and each second pilot configuration is associated with at least one third device.

[0151] In this application, the second pilot configuration includes time-frequency code resources for interference detection, and interference measurements can be performed in different time periods based on the second pilot configurations corresponding to different activation time periods.

[0152] In this application, each second pilot configuration is associated with one or more third devices.

[0153] Among them, the third device may include at least one device, and the third device may be a satellite or an access network device on the satellite.

[0154] It can be understood that when the satellite changes, the pilot configuration may also change, and different pilot configurations are associated with different satellites.

[0155] It can be understood that in the NTN scenario, at different times, the pilots that the first device needs to detect are different, and the satellites associated with different pilots are also different.

[0156] An optional understanding is that the second device can send multiple pilot configurations (second pilot configurations) corresponding to different activation times to the first device, and the first device determines the pilot configuration to be detected (first pilot configuration) according to the time information.

[0157] Among them, the first device determines the second pilot configuration corresponding to the current time period according to an activation time period corresponding to each second pilot configuration, and this second pilot configuration is the first pilot configuration.

[0158] In the embodiments of this application, the second device can obtain at least one of the above second pilot configurations through OAM.

[0159] It can be understood that the measurement pilot can be bound to the satellite. The transmitting end can configure multiple interference measurement pilot configurations associated with different activation times for the receiving end. The receiving end determines the pilot to be measured based on the time information, so as to reduce unnecessary measurements, reduce the overhead of invalid measurements, and reduce the overhead of configuration updates.

[0160] In another implementation, the first pilot configuration corresponds to a first location.

[0161] Among them, this first location is the geographical location where the second device sends the first pilot configuration. In other words, when the second device enters the first location, the second device sends this first pilot configuration. It can also be said that the first location is the activation location or the effective location of the first pilot configuration.

[0162] It can be understood that in the NTN scenario, the satellite is in a moving state. For the satellite, when it moves to different geographical locations, the interference measurement pilots sent will also be different. That is to say, for the same satellite, when pilots are sent at different geographical locations, the pilots that the first device needs to detect are different.

[0163] In this application, the first pilot configuration is associated with the location (the first location) where the pilot is sent, and the first pilot configuration is sent at the corresponding geographical location.

[0164] In this application, the first pilot configuration corresponds to the first location. It can also be said that the first pilot configuration is associated with the first location. Or rather, the first pilot configuration has a corresponding relationship or an associated relationship with the first location. All such descriptions can be used to describe the sending of interference measurement pilots at the first location, and such descriptions can be equivalently replaced. The embodiments of this application do not make any limitations in this regard.

[0165] It can be understood that the first location is only one way to describe location information. In fact, it can also be replaced with similar descriptions. For example, the first pilot configuration corresponds to the first spatial location; for another example, the first pilot configuration corresponds to the first geographical location; for another example, the first pilot configuration corresponds to the first area. All such descriptions are equivalent replacements, and the embodiments of this application do not make any limitations in this regard. In the embodiments of this application, the first location is used as an example for description.

[0166] The following will elaborate on how to determine the first pilot configuration associated with the first location.

[0167] In one possible implementation, the first device receives the first pilot configuration from the second device.

[0168] Correspondingly, the second device sends the first pilot configuration to the first device.

[0169] Among them, the second device obtains at least one third pilot configuration through OAM.

[0170] Among them, each of the at least one third pilot configurations corresponds to a different location where the second device is located, and each third pilot configuration is associated with at least one third device.

[0171] In this application, the third pilot configuration includes time-frequency code resources for interference detection, and interference measurement can be performed based on the third pilot configurations corresponding to different geographical locations.

[0172] In this application, each third pilot configuration is associated with one or more third devices.

[0173] Among them, the third device can include at least one device. The third device can be a satellite or an access network device on the satellite.

[0174] It can be understood that when the satellite position changes, the pilot configuration may also change, and different pilot configurations are associated with different satellites.

[0175] It can be understood that in the NTN scenario, the satellite is in a moving state. At different times, the spatial position of the satellite is different, the interference measurement pilots sent are different, the pilots that the first device needs to detect are different, and the satellites associated with different pilots are also different.

[0176] An optional understanding is that the second device obtains multiple pilot configurations (the third pilot configuration) corresponding to different positions through OAM, and the second device determines the pilot configuration to be detected (the first pilot configuration) according to the current position.

[0177] Among them, the second device determines the third pilot configuration corresponding to the current position according to a position corresponding to each third pilot configuration, and this third pilot configuration is the first pilot configuration.

[0178] In a possible implementation, the second device can also send the first angle range associated with the first pilot configuration to the first device.

[0179] Among them, the first angle range is used to indicate the receiving or transmitting direction of the pilot corresponding to the first pilot configuration.

[0180] It can be understood that the first angle range can be an angle area for sending or receiving pilots. Receiving pilots based on this angle area can reduce the number of pilots to be detected and increase the pilot reuse rate.

[0181] Exemplarily, the first angle range is the angle range of the zenith angle and azimuth angle of the local coordinate system of the first device. Among them, the zenith angle of 0° points to the direction away from the earth center along the line connecting the earth center and the terminal position or a certain reference position, and the azimuth angle of 0° points from the terminal position or a certain reference position to the north pole.

[0182] Exemplarily, the first angle range is the angle range indicated by the reference direction (zenith angle and azimuth angle) of the first device and the angular range of the opening angle with respect to the reference direction.

[0183] Exemplarily, the first angle range is the position of the satellite and the angular range of the opening angle with respect to the reference direction, and the terminal calculates the reference direction using its own position and the satellite position.

[0184] It can be understood that the measurement pilots can be bound to the spatial position, enabling the transmitting end to use different measurement pilots for transmission in different regions and different service directions. The transmitting end can configure the interference measurement pilot configuration associated with the current position for the receiving end, and the receiving end performs interference pilot measurement based on the configuration, which is convenient for the receiving end to identify the source of interference, reduces the overhead of invalid measurements, and reduces the overhead of configuration updates.

[0185] In this application, when the first pilot configuration corresponds to the first time period, the second device may send the angle range corresponding to each second pilot configuration in at least one second pilot configuration to the first device. Correspondingly, the first device may determine the corresponding second pilot configuration (first pilot configuration) and the corresponding angle range (first angle range) according to the time information, and perform interference pilot measurement based on the angle range at the corresponding time.

[0186] In the embodiments of this application, the second pilot configuration, the time period corresponding to the second pilot configuration, and the angle range may be sent through the same configuration information or through different information. The embodiments of this application do not limit this.

[0187] In this application, when the first pilot configuration corresponds to the first position, the second device may send the first angle range corresponding to the first pilot configuration to the first device.

[0188] In the embodiments of this application, the third pilot configuration, the position information corresponding to the third pilot configuration, and the angle range may be sent through the same configuration information or through different information. The embodiments of this application do not limit this.

[0189] S720, perform interference detection based on the first pilot configuration.

[0190] The first device performs interference detection based on the first pilot configuration to obtain a first value. When the first value is higher than the first threshold, the first device may send the identifier of the third device associated with the first pilot configuration to the second device or the OAM, for indicating that interference occurs between the third device and the second device.

[0191] It can be understood that when the first device is a terminal device, the first device sends the identifier of the third device associated with the first pilot configuration to the second device.

[0192] In a possible implementation, the first device may perform interference measurement based on the first angle range associated with the first pilot configuration.

[0193] It can be understood that using the angle range to activate different interference measurement pilots, adapting to the scenario where the receiving end has strong directivity, reducing unnecessary measurements in a given direction, and being beneficial for accurate feedback, improving the reuse rate of interference measurement pilots, and enhancing the efficiency of pilot measurement.

[0194] In the NTN scenario, the satellite is in a moving state. For the receiving end, as time changes, the interference measurement pilot changes accordingly. In the embodiments of this application, the receiving end (first device) may determine the pilot associated with the current time information (first time period) or the transmitting end position information (first position), and perform interference measurement based on this pilot, avoiding invalid measurements at the receiving end and saving measurement overhead.

[0195] Next, different embodiments will be described in detail.

[0196] First, a solution in which pilot configuration is bound to the activation time will be described.

[0197] Figure 8 It is a schematic flowchart of a communication method provided by an embodiment of the present application. For ease of description below, the method 800 is exemplarily described by taking the interaction between a first access network device and a second access network device as an example. It can be understood that the first access network device may be a component of the first access network device (such as a chip or a circuit), and the second access network device may be a component of the second access network device (such as a chip or a circuit), which is not limited.

[0198] Among them, the first access network device may be an access network device of a satellite system, and the second access network device may be an access network device of a cellular system.

[0199] In the present application, the first access network device is taken as the transmitting end as an example, and the second access network device is taken as the receiving end as an example.

[0200] In the present application, the core network device takes OAM as an example, and OAM is used as an operation and maintenance module.

[0201] Figure 8 The method 800 shown may include the following steps.

[0202] S810, OAM sends first configuration information to the first access network device.

[0203] The first configuration information includes the pilot resources associated with the first access network device and the corresponding activation time period.

[0204] Among them, the pilot resources of the first access network device are used to indicate the time-frequency code resources of the interference detection pilot of the first access network device.

[0205] Among them, the activation time period corresponding to the pilot resources of the first access network device is used to indicate the time period for the receiving end (the second access network device) to measure the interference detection pilot.

[0206] The first configuration information further includes at least one pilot configuration and the activation time period corresponding to each pilot configuration.

[0207] It can be understood that as time changes, the satellite moves, the position of the satellite changes, the satellite serving the terminal changes, and correspondingly, the corresponding interference measurement pilot also changes.

[0208] Therefore, it can be understood that at different time periods, the receiving end (the second access network device) performs interference measurement based on different interference measurement pilots.

[0209] Among them, each pilot configuration in at least one pilot configuration includes the time-frequency code resources of the interference measurement pilot and the identifier of the associated third device.

[0210] The third device may be a satellite adjacent to the current serving satellite or an access network device on the satellite.

[0211] The third device may include one or more devices. The embodiments of the present application do not limit this.

[0212] Exemplarily, Table 1 below shows the association relationship between the pilot configuration and the activation time period.

[0213] Table 1

[0214] Received-end interference measurement pilot Associated satellite Activation time period Pilot configuration #1 Satellite #1 t0 to t1 Pilot configuration #2 Satellite #2 t1 to t2 Pilot configuration #3 Satellite #3 t2 to t3 … …

[0215] As shown in Table 1 above, Pilot Configuration #1 is associated with Satellite #1, and the corresponding activation time period is t0 to t1; Pilot Configuration #2 is associated with Satellite #2, and the corresponding activation time period is t1 to t2; Pilot Configuration #3 is associated with Satellite #3, and the corresponding activation time period is t2 to t3.

[0216] It should be understood that the interference measurement pilots corresponding to different satellites may be the same. In other words, one pilot configuration may be associated with multiple satellites. The embodiments of the present application do not limit this.

[0217] The above table is only an example and does not limit the embodiments of the present application in any way.

[0218] Optionally, the first configuration information further includes the angle range corresponding to each pilot configuration in at least one pilot configuration, and the angle range is used to indicate the receiving or transmitting direction of the pilot corresponding to the pilot configuration.

[0219] S820. The first access network device sends the second configuration information to the second access network device.

[0220] The second configuration information includes the pilot resources associated with the first access network device and the corresponding activation time period, at least one pilot configuration, and the corresponding activation time period.

[0221] Specifically, the first access network device sends multiple pilot configurations and the corresponding activation time periods to the second access network device.

[0222] Optionally, the second configuration information may further include multiple pilot configurations and the corresponding angle ranges.

[0223] S830. The second access network device performs interference measurement based on the second configuration information.

[0224] The second access device can determine the pilot to be detected currently based on the time information (activation time period) in the second configuration information. In other words, the second access device determines which activation time period it is in according to the current time information, so as to determine the corresponding pilot configuration.

[0225] An optional understanding is that the second access network device can determine the current serving satellite and the corresponding interference measurement pilot according to the time information.

[0226] The second access network device performs interference detection on the determined pilot to be detected. When the measured energy is higher than the first threshold, it can be determined that the second access network device interferes with the third device associated with the measured pilot.

[0227] Optionally, the second access network device can determine the angle range corresponding to the pilot to be detected, and perform interference detection based on this angle range, which can reduce the number of pilots to be detected and increase the pilot reuse rate.

[0228] S840, the second access network device sends the measurement result to the first access network device or the OAM.

[0229] The second access network device reports the measurement result to the first access network device or the OAM.

[0230] Specifically, the second access network device reports the identification information of the third device to the first access network device or the OAM. Herein, the third device is the device that interferes with the second access network device.

[0231] Optionally, the OAM sends the angle region information corresponding to the detected pilot to the first access network device.

[0232] An optional understanding is that the angle region information includes the transmission angle of the detected pilot, and this transmission angle is used to indicate the transmission direction information of the pilot. Correspondingly, for the terminal device, it can determine the reception angle for receiving this pilot according to this angle region information. That is to say, the terminal device can determine in which direction to receive the pilot.

[0233] It can be understood that in the above steps, the receiving end takes the second access network device as an example. The receiving end can also be a terminal device. The terminal device determines the pilot to be detected according to the pilot configuration sent by the first access network device, and can send the measurement result to the first access network device after detection.

[0234] Based on the above technical solution, the measurement pilot can be bound to the satellite. The transmitting end can configure multiple interference measurement pilot configurations associated with different activation times for the receiving end. The receiving end determines the pilot to be measured based on the time information, thereby reducing unnecessary measurements, reducing the overhead of invalid measurements, and reducing the overhead of configuration updates. Further, different interference measurement pilots are activated using an angular range to adapt to scenarios where the receiving end has strong directivity, reducing unnecessary measurements in a given direction, facilitating precise feedback, increasing the reuse rate of interference measurement pilots, and improving the efficiency of pilot measurement.

[0235] Next, a solution for binding pilot configuration to geographical location will be described.

[0236] Figure 9 It is a schematic flowchart of a communication method provided by an embodiment of the present application. For ease of description below, method 900 is exemplarily described with the interaction between a first access network device and a second access network device. It can be understood that the first access network device can be a component of the first access network device (such as a chip or a circuit), and the second access network device can be a component of the second access network device (such as a chip or a circuit), which is not limited.

[0237] Among them, the first access network device can be an access network device of a satellite system, and the second access network device can be an access network device of a cellular system.

[0238] In this application, the first access network device is taken as the transmitting end as an example, and the second access network device is taken as the receiving end as an example.

[0239] In this application, the core network device takes OAM as an example, and OAM is used as an operation and maintenance module.

[0240] Figure 9 The method 900 shown can include the following steps.

[0241] S910, OAM sends the third configuration information to the first access network device.

[0242] The third configuration information includes at least one pilot configuration associated with the first access network device at different geographical locations.

[0243] Among them, at least one pilot configuration associated with the first access network device at different geographical locations is used to indicate the time-frequency code resources of the interference detection pilots sent by the first access network device at different locations.

[0244] It can be understood that the first access network device enters different geographical locations at different times and sends different pilots. Therefore, there is a corresponding relationship among the geographical location, time information, and the pilots sent by the first access network device.

[0245] It can be understood that as time changes, the satellite moves, its position changes, and different pilots are sent at different positions.

[0246] Therefore, it can be understood that in different time periods, or rather, based on the different positions of the transmitting end, the receiving end (the second access network device) performs interference measurement based on different interference measurement pilots.

[0247] Among them, each pilot configuration in at least one pilot configuration includes the time-frequency code resources of the interference measurement pilot and the identifier of the associated third device.

[0248] The third device can be a satellite adjacent to the current serving satellite or an access network device on the satellite.

[0249] The third device can include one or more devices. The embodiments of the present application do not limit this.

[0250] Exemplarily, Table 2 below shows the association relationship between the pilot configuration and the geographical location of the transmitting end.

[0251] Table 2

[0252] Received-end interference measurement pilot Associated satellite Transmitting-end location Pilot configuration #1 Satellite #1 Location #1 Pilot configuration #2 Satellite #2 Location #2 Pilot configuration #3 Satellite #3 Location #3 … …

[0253] As shown in Table 2 above, pilot configuration #1 is associated with satellite #1, and the corresponding transmitting end position is position #1; pilot configuration #2 is associated with satellite #2, and the corresponding transmitting end position is position #2; pilot configuration #3 is associated with satellite #3, and the corresponding transmitting end position is position #3. That is, different pilot configurations are sent at different positions of the transmitting end.

[0254] It should be understood that the interference measurement pilots corresponding to different satellites may be the same. In other words, one pilot configuration may be associated with multiple satellites. The embodiments of the present application do not limit this.

[0255] The above table is only an example and does not limit the embodiments of the present application in any way.

[0256] S920, the first access network device sends the fourth configuration information to the second access network device.

[0257] The fourth configuration information includes the pilot configuration associated with the geographical location where the first access network device is currently located.

[0258] Specifically, the first access network device determines the pilot configuration associated with the geographical location where it is currently located from multiple pilot configurations.

[0259] Optionally, the fourth configuration information may further include the angular range corresponding to the pilot configuration associated with the geographical location where it is currently located.

[0260] S930, the second access network device performs interference measurement based on the fourth configuration information.

[0261] The second access network device performs interference measurement based on the pilot configured by the first access network device.

[0262] The second access network device performs interference detection on the configured pilot. When the measured energy is higher than the first threshold, it can be determined that the first access network device interferes with the third device associated with the measured pilot.

[0263] Optionally, the second access network device can perform interference detection based on an angle range, which can reduce the number of pilots to be detected and increase the reuse rate of pilots.

[0264] S940, the second access network device sends the measurement result to the first access network device.

[0265] The second access network device reports the measurement result to the first access network device or OAM.

[0266] Specifically, the second access network device reports the identification information of the third device to the first access network device or OAM. Among them, the third device is the device that interferes with the first access network device.

[0267] Optionally, OAM sends the angle region information corresponding to the detected pilot to the first access network device.

[0268] An optional understanding is that the angle region information includes the transmission angle of the detected pilot, and the transmission angle is used to indicate the transmission direction information of the pilot. Correspondingly, for the terminal device, it can determine the reception angle of receiving the pilot according to the angle region information. That is to say, the terminal device can determine in which direction to receive the pilot.

[0269] It can be understood that in the above steps, the receiving end takes the second access network device as an example, and the receiving end can also be a terminal device. The terminal device performs interference detection according to the pilot configuration sent by the first access network device, and can send the measurement result to the first access network device after detection.

[0270] Based on the above technical solution, the measurement pilot can be bound to the spatial position, enabling the transmitting end to use different measurement pilots in different regions and different service directions. The transmitting end can configure the interference measurement pilot configuration associated with the current position for the receiving end, and the receiving end performs interference pilot measurement based on the configuration, which is convenient for the receiving end to identify the source of interference, reduces the overhead of invalid measurement, and reduces the overhead of configuration update. Further, using the angle range to activate different interference measurement pilots, adapting to the scenario where the receiving end has strong directivity, reducing unnecessary measurements in a given direction, and being beneficial to accurate feedback, improving the reuse rate of interference measurement pilots, and improving the efficiency of pilot measurement.

[0271] It should be understood that other possible implementation manners of the embodiments of the present application are similar to the above-mentioned method 800 and method 900, and reference may be made to the descriptions in method 800 and method 900, which will not be elaborated herein.

[0272] It should be understood that the magnitudes of the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0273] The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of the interaction between each network element. It can be understood that each network element, such as a transmitting-end device or a receiving-end device, includes corresponding hardware structures and / or software modules for implementing the above functions in order to achieve the above functions. Those skilled in the art should be able to realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the manner of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0274] The embodiments of the present application can divide the functional modules of the transmitting-end device or the receiving-end device according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. There may be other division methods in actual implementation. The following takes the division of each functional module corresponding to each function as an example for illustration.

[0275] Above, in combination with Figures 7 to 9 The method provided by the embodiments of the present application has been described in detail. Below, in combination with Figures 10 to 11 The device provided by the embodiments of the present application will be described in detail. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, the content that is not described in detail can be referred to the above method embodiments. For the sake of brevity, it will not be elaborated here.

[0276] Figure 10 It is a schematic structural diagram of a communication device provided by the embodiments of the present application.

[0277] The device 1000 includes a transceiver unit 1010 and a processing unit 1020. Among them, the transceiver unit 1010 can be used to implement corresponding communication functions, and the processing unit 1020 can be used to perform data processing.

[0278] Optionally, the transceiver unit 1010 may also be referred to as a communication interface or a communication unit, and includes a sending unit and / or a receiving unit. The transceiver unit 1010 may be a transceiver (including a transmitter and / or a receiver), an input / output interface (including an input and / or an output interface), a pin, a circuit, etc. The transceiver unit 1010 may be used to perform the sending and / or receiving steps in the above method embodiments.

[0279] Optionally, the processing unit 1020 may be a processor (which may include one or more), a processing circuit with processor functions, etc., and may be used to perform other steps in the above method embodiments except for sending and receiving.

[0280] Optionally, the device 1000 further includes a storage unit, and the storage unit may be a memory, an internal storage unit (such as a register, a cache, etc.), an external storage unit (such as a read-only memory, a random access memory, etc.). The storage unit is used to store instructions, and the above processing unit 1020 executes the instructions stored in the storage unit to enable the communication device to execute the above method.

[0281] In one design, the device 1000 may be used to perform the actions performed by the first device in the above method embodiments. For example, the device 1000 may be used to perform the actions performed by the first device in the above method 700. At this time, the device 1000 may be a component of the first device. The transceiver unit 1010 is used to perform the transceiver-related operations on the first device side in the above method embodiments, and the processing unit 1020 is used to perform the processing-related operations on the first device side in the above method embodiments.

[0282] For example, the processing unit 1020 is used to determine a first pilot configuration, where the first pilot configuration corresponds to a first time period, and the first time period is the time period for activating the first pilot configuration, or the first pilot configuration corresponds to a first location, and the first location is the geographical location where the first pilot configuration is sent; the processing unit 1020 is further used to perform interference detection based on the first pilot configuration.

[0283] For another example, the transceiver unit 1010 is used to receive at least one second pilot configuration from a second device, where each second pilot configuration in the at least one second pilot configuration corresponds to an activation time period, and each second pilot configuration is associated with at least one third device; the processing unit 1020 is used to determine the first pilot configuration according to the at least one second pilot configuration, and the first pilot configuration is one of the at least one second pilot configurations.

[0284] For another example, the processing unit 1020 is further used to determine the first pilot configuration according to an activation time period corresponding to each second pilot configuration.

[0285] For another example, the transceiver unit 1010 is further configured to receive the first pilot configuration from a second device, and the first location corresponding to the first pilot configuration is the geographical location where the second device is when sending the first pilot configuration.

[0286] For another example, the processing unit 1020 is further configured to perform interference detection based on the first pilot configuration to obtain a first value; when the first value is higher than a first threshold, the transceiver unit 1010 is further configured to send an identifier of the third device associated with the first pilot configuration to the second device or a core network device, where interference occurs between the third device and the second device.

[0287] For another example, the processing unit 1020 is further configured to perform interference detection based on a first angle range associated with the first pilot configuration.

[0288] It should be understood that the transceiver unit 1010 and the processing unit 1020 may also perform other operations performed by the first device in the above method 700, which will not be elaborated here one by one.

[0289] In one design, the apparatus 1000 may be used to perform the actions performed by the second device in the foregoing method embodiments. For example, the apparatus 1000 may be used to perform the actions performed by the second device in the foregoing method 700. At this time, the apparatus 1000 may be a component of the second device. The transceiver unit 1010 is configured to perform transceiver-related operations on the second device side in the foregoing method embodiments, and the processing unit 1020 is configured to perform processing-related operations on the second device side in the foregoing method embodiments.

[0290] For example, the processing unit 1020 is configured to determine at least one second pilot configuration, each second pilot configuration in the at least one second pilot configuration corresponds to an activation time period, and each second pilot configuration is associated with at least one third device; the transceiver unit 1010 is configured to send the at least one second pilot configuration to a first device, and each second pilot configuration in the at least one second pilot configuration is used for the first device to perform interference detection during the corresponding activation time period.

[0291] For another example, the transceiver unit 1010 is further configured to receive an identifier of a third device associated with the first pilot configuration, where the first pilot configuration is one of the at least one second pilot configurations.

[0292] For another example, the transceiver unit 1010 is further configured to send the angular range associated with each of the at least one second pilot configuration, where the angular range associated with each second pilot configuration is used to indicate the receiving or transmitting direction of the pilot corresponding to each second pilot configuration, and the first angular range is the angular range associated with the first pilot configuration.

[0293] It should be understood that the transceiver unit 1010 and the processing unit 1020 may also perform other operations performed by the second device in the above method 700, which will not be elaborated here one by one.

[0294] In one design, the apparatus 1000 may be used to perform the actions performed by the second device in the foregoing method embodiments. For example, the apparatus 1000 may be used to perform the actions performed by the second device in the foregoing method 700. At this time, the apparatus 1000 may be a component of the second device. The transceiver unit 1010 is configured to perform the transceiver-related operations on the second device side in the foregoing method embodiments, and the processing unit 1020 is configured to perform the processing-related operations on the second device side in the foregoing method embodiments.

[0295] For example, the processing unit 1020 is configured to determine a first pilot configuration according to at least one third pilot configuration. Each third pilot configuration in the at least one third pilot configuration corresponds to a different position where the second device is located. Each third pilot configuration is associated with at least one third device, and the first pilot configuration is the pilot configuration corresponding to the first position; and send the first pilot configuration.

[0296] For another example, the processing unit 1020 is further configured to determine a first pilot configuration according to at least one third pilot configuration, including: determining the first pilot configuration according to the different positions corresponding to each third pilot configuration in the at least one third pilot configuration, where the first position corresponding to the first pilot configuration is the geographical location where the second device sends the first pilot configuration.

[0297] For another example, the transceiver unit 1010 is further configured to receive an identifier of a third device, where the third device is associated with the first pilot configuration, and the first pilot configuration is one of the at least one second pilot configuration.

[0298] For another example, the transceiver unit 1010 is further configured to send the first angular range associated with the first pilot configuration, where the first angular range is used to indicate the receiving or transmitting direction of the pilot corresponding to the first pilot configuration.

[0299] It should be understood that the transceiver unit 1010 and the processing unit 1020 may also perform other operations performed by the second device in the above method 700, which will not be elaborated here one by one.

[0300] It should also be understood that the device 1000 here is embodied in the form of functional units. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a proprietary processor or a group of processors, etc.) and a memory, a combined logic circuit and / or other suitable components that support the described functions. In an alternative example, those skilled in the art can understand that the device 1000 can specifically be the network device in the above embodiments, and can be used to execute each process and / or step corresponding to the network device in each of the above method embodiments. To avoid repetition, it will not be elaborated here.

[0301] The device 1000 in each of the above solutions has the function of implementing the corresponding steps executed by the device in the above method, or, the device 1000 in each of the above solutions has the function of implementing the corresponding steps executed by the network device in the above method. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, etc. can be replaced by a processor, respectively executing the transceiver operations and related processing operations in each method embodiment.

[0302] In addition, the above transceiver unit 1010 can also be a transceiver circuit (for example, it can include a receiving circuit and a sending circuit), and the processing unit can be a processing circuit.

[0303] It should be noted that Figure 10 the device in can be the network element or device in the foregoing embodiments, or can be a chip or a chip system, for example: a system on chip (SoC). Among them, the transceiver unit can be an input / output circuit, a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. It is not limited here.

[0304] Figure 11 is a schematic diagram of a communication architecture provided by an embodiment of the present application. Figure 11 The shown communication device 1100 includes: a processor 1110 and a transceiver 1120. Optionally, the processor 1110 and the transceiver 1120 can be connected to each other through a bus 1130. The communication device 1100 can be a terminal device or a network device.

[0305] Optionally, the communication device 1100 may further include a memory 1140. The memory 1140 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM), and is used to store relevant instructions and data.

[0306] The processor 1110 is coupled to the memory 1140 and is configured to execute the instructions stored in the memory 1140 to control the transceiver 1120 to send signals and / or receive signals.

[0307] It should be understood that the above-mentioned processor 1110 and memory 1140 may be integrated into a processing device. The processor 1110 is configured to execute the program code stored in the memory 1140 to implement the above functions. Specifically, in implementation, the memory 1140 may also be integrated in the processor 1110 or independent of the processor 1110. It should be understood that the processor 1110 may also correspond to each processing unit in the previous communication device, and the transceiver 1120 may correspond to each receiving unit and sending unit in the previous communication device.

[0308] It should also be understood that the transceiver 1120 may include a receiver (or, a receiver) and a transmitter (or, a transmitter). The transceiver may further include an antenna, and the number of antennas may be one or more. The transceiver may also be a communication interface or an interface circuit.

[0309] Specifically, the communication device 1100 may correspond to the first device in the method 700 according to an embodiment of the present application. The communication device 1100 may include units of the method executed by the first device in the method 700. It should be understood that the specific processes of each unit executing the above corresponding steps have been described in detail in the above method embodiments, and for the sake of brevity, they will not be repeated here.

[0310] Specifically, the communication device 1100 may correspond to the second device in the method 700 according to an embodiment of the present application. The communication device 1100 may include units of the method executed by the second device in the method 700. It should be understood that the specific processes of each unit executing the above corresponding steps have been described in detail in the above method embodiments, and for the sake of brevity, they will not be repeated here.

[0311] When the communication device 1100 is a chip, the chip includes an interface unit and a processing unit. Among them, the interface unit can be an input / output circuit or a communication interface; the processing unit can be a processor, a microprocessor, or an integrated circuit integrated on the chip.

[0312] In the implementation process, the steps of the above method can be completed by the integrated logic circuit of the hardware in the processor or the instructions in the form of software. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by the hardware processor, or executed and completed by the combination of the hardware and software modules in the processor. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0313] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with the ability to process signals. In the implementation process, the steps of the above method embodiments can be completed by the integrated logic circuit of the hardware in the processor or the instructions in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by the combination of the hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0314] The present application also provides a computer-readable medium, on which a computer program is stored, and when the computer program is executed by the computer, it realizes the functions of any one of the above method embodiments.

[0315] The present application also provides a computer program product, and when the computer program product is executed by the computer, it realizes the functions of any one of the above method embodiments.

[0316] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that the computer can access, or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a high-definition digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0317] In the embodiments of the present application, words such as "exemplary" and "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary" in the present application should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a specific manner.

[0318] It should be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner.

[0319] It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not indicate the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The names of all nodes and messages in the present application are only set for the convenience of description in the present application, and may be different in the actual network. It should not be understood that the present application limits the names of various nodes and messages. On the contrary, any name having the same or similar function as the nodes or messages used in the present application is regarded as the method of the present application or an equivalent replacement, and is within the protection scope of the present application.

[0320] It should also be understood that in the present application, "when...", "if", and "in case" all refer to the situation where the UE or the base station will perform corresponding processing under certain objective circumstances, not to limit the time, and it is not required that the UE or the base station must have a judgment action when implemented, nor does it mean that there are other limitations.

[0321] In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article only describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0322] The term "at least one of..." or "at least one kind of..." in this article means all or any combination of the items listed. For example, "at least one of A, B, and C" can represent: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, and A, B, and C exist simultaneously. "At least one" in this article means one or more. "Multiple" means two or more.

[0323] It should be understood that in each embodiment of the present application, the terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0324] It should be understood that in various embodiments of the present application, the first, second, and various numerical numbers are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different information, etc.

[0325] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled professionals can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0326] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0327] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0328] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0329] In addition, the functional units in each embodiment of this application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0330] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art or a part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs.

[0331] As described above, the above are only specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. An NTN communication method, characterized in that, Applied to a first device, including: Determine a first pilot configuration, where the first pilot configuration corresponds to a first time period, the first time period is the time period for activating the first pilot configuration, or the first pilot configuration corresponds to a first location, and the first location is the geographical location where the first pilot configuration is sent; Perform interference detection based on the first pilot configuration.

2. The method according to claim 1, characterized in that, The determining the first pilot configuration includes: Receive at least one second pilot configuration from a second device, where each second pilot configuration in the at least one second pilot configuration corresponds to an activation time period, and each second pilot configuration is associated with at least one third device; Determine the first pilot configuration according to the at least one second pilot configuration, and the first pilot configuration is one of the at least one second pilot configurations.

3. The method according to claim 2, characterized in that, The determining the first pilot configuration according to the at least one second pilot configuration includes: Determine the first pilot configuration according to an activation time period corresponding to each second pilot configuration.

4. The method according to claim 1, wherein The determining the first pilot configuration includes: Receive the first pilot configuration from the second device, and the first location corresponding to the first pilot configuration is the geographical location where the second device is when sending the first pilot configuration.

5. The method according to claim 4, characterized in that, The first pilot configuration is determined by the second device from at least one third pilot configuration, and each third pilot configuration in the at least one third pilot configuration corresponds to a different location where the second device is located, and each third pilot configuration is associated with at least one third device.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: Perform interference detection based on the first pilot configuration to obtain a first value; When the first value is higher than a first threshold, send an identifier of the third device associated with the first pilot configuration to the second device or a core network device, and interference occurs between the third device and the second device.

7. The method according to claim 6, characterized in that, The performing interference detection based on the first pilot configuration to obtain a first value includes: Perform interference detection based on a first angle range associated with the first pilot configuration.

8. The method according to claim 7, wherein The method further includes: Receive the first angle range associated with the first pilot configuration, and the first angle range is used to indicate the receiving or transmitting direction of the pilot corresponding to the first pilot configuration.

9. The method according to claim 7 or 8, characterized in that The first angle range is the angle range of the zenith angle and azimuth angle of the local coordinate system of the first device; or the first angle range is the angle range indicated by a reference direction of the first device and an angular range with respect to the reference direction.

10. The method according to any one of claims 1-9, characterized in that, The first device is an access network device or a terminal device.

11. The method according to any one of claims 1-9, characterized in that, The second device is a satellite or an access network device on the satellite.

12. An NTN communication method, characterized in that, Applied to a second device, including: Determine at least one second pilot configuration, where each second pilot configuration in the at least one second pilot configuration corresponds to an activation time period, and each second pilot configuration is associated with at least one third device; Send the at least one second pilot configuration to a first device, and each second pilot configuration in the at least one second pilot configuration is used for the first device to perform interference detection during the corresponding activation time period.

13. The method according to claim 12, wherein The method further includes: Receive an identifier of a third device, where the third device is associated with the first pilot configuration, and the first pilot configuration is one of the at least one second pilot configurations.

14. The method according to claim 12 or 13, characterized in that, The method further includes: Send an angular range associated with each second pilot configuration in the at least one second pilot configuration, where the angular range associated with each second pilot configuration is used to indicate a reception or transmission direction of a pilot corresponding to each second pilot configuration, and a first angular range is an angular range associated with the first pilot configuration.

15. The method according to claim 14, wherein The angular range is an angular range of the zenith angle and the azimuth angle in the local coordinate system of the first device; or, the angular range is an angular range indicated by a reference direction of the first device and an angular range of the included angle with respect to the reference direction.

16. The method according to any one of claims 12 - 15, characterized in that, The first device is an access network device or a terminal device.

17. The method according to any one of claims 12-15, characterized in that, The second device is a satellite or an access network device on the satellite.

18. An NTN communication method, characterized in that, Applied to a second device, it includes: Determine a first pilot configuration according to at least one third pilot configuration, where each third pilot configuration in the at least one third pilot configuration corresponds to a different position where the second device is located, each third pilot configuration is associated with at least one third device, and the first pilot configuration is a pilot configuration corresponding to a first position. Send the first pilot configuration.

19. The method according to claim 18, characterized in that, The determining the first pilot configuration according to at least one third pilot configuration includes: Determine the first pilot configuration according to different positions corresponding to each third pilot configuration in the at least one third pilot configuration, and the first position corresponding to the first pilot configuration is a geographical location where the second device sends the first pilot configuration.

20. The method according to claim 18 or 19, characterized in that, The method further includes: Receive an identifier of a third device, where the third device is associated with the first pilot configuration, and the first pilot configuration is one of the at least one third pilot configurations.

21. The method according to any one of claims 18 - 20, characterized in that, The method further includes: Send a first angular range associated with the first pilot configuration, where the first angular range is used to indicate a reception or transmission direction of a pilot corresponding to the first pilot configuration.

22. The method according to claim 21, wherein The first angular range is an angular range of the zenith angle and the azimuth angle in the local coordinate system of the first device; or, the first angular range is an angular range indicated by a reference direction of the first device and an angular range of the included angle with respect to the reference direction.

23. The method according to any one of claims 18 - 22, characterized in that, The first device is an access network device or a terminal device.

24. The method according to any one of claims 18-22, characterized in that, The second device is a satellite or an access network device on the satellite.

25. A communication device, characterized in that, Includes units for performing the method according to any one of claims 1-11 or 12-17 or 18-24.

26. A communication device, characterized in that, Includes a processor, the processor is coupled with a memory, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions in the memory, so that the device executes the method according to any one of claims 1 to 11, or executes the method according to any one of claims 12 to 17, or executes the method according to any one of claims 18 to 24.

27. A computer-readable storage medium, characterized in that, A computer program or instructions are stored on the computer-readable storage medium. When the computer program or instructions run on a computer, the computer is caused to execute the method according to any one of claims 1 to 11, or execute the method according to any one of claims 12 to 17, or execute the method according to any one of claims 18 to 24.

28. A chip system, characterized in that, Comprising: a processor, configured to call and run a computer program from a memory, so that a communication device equipped with the chip system executes the method according to any one of claims 1 to 11, or executes the method according to any one of claims 12 to 17, or executes the method according to any one of claims 18 to 24.

29. A computer program product, characterized in that, When the computer program product runs on a computer, the computer is caused to execute the steps of the method according to any one of claims 1 to 11, or execute the steps of the method according to any one of claims 12 to 17, or execute the steps of the method according to any one of claims 18 to 24.

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