Communication method and apparatus

Abstract

A communication method and apparatus, relating to the technical field of communications. In the communication method, a terminal can perform interference measurement on the basis of a first beam hopping period set to obtain a first measurement result, and then request interference avoidance from a first NTN device on the basis of the first measurement result, for example, indicating location information of the terminal and / or a beam hopping period for interference avoidance in the first beam hopping period set. In this way, the first NTN device can determine, on the basis of the location information of the terminal, which NTN device should be notified for interference avoidance, thereby achieving more accurate interference avoidance and reducing interference to the terminal.

Description

Communication method and apparatus

[0001] The present application claims priority to the Chinese patent application No. 202411077325.X, filed on August 6, 2024, with the State Intellectual Property Office of China, and the Chinese patent application No. 202411077325.X has the invention name of “A communication method and apparatus”, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

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

[0003] In non-terrestrial network (NTN) technology, the improvement of system capacity by single-satellite transmission is limited. In order to provide data communication performance with higher reliability and greater transmission rate, satellite communication systems gradually evolve from single-satellite transmission to multi-satellite cooperative transmission. Multi-satellite cooperative transmission can reduce the requirement for single-satellite transmission capability, thereby reducing the cost of single-satellite manufacturing. Multi-satellite cooperative transmission is a key technology for future satellite communication systems.

[0004] Compared with the technology of joint transmission scene with multiple ground base stations, in multi-satellite cooperative transmission, the distances between different satellites and terminals are different, and the running speeds and directions of different satellites are also different, which makes the signal arrival time delays and Doppler shifts of different satellites at the terminal possibly exist, resulting in time-frequency asynchronization between the signals of different satellites received by the terminal. This means that the measurement results obtained by the terminal when performing interference measurement on the signals from the serving satellite may be the superposition of asynchronous interference of each neighbor satellite. When the terminal reports such measurement results to the serving satellite, the serving satellite cannot determine which neighbor satellite should be notified to close certain beams, so as to reduce the interference of the neighbor satellite to the terminal. SUMMARY

[0005] The present application provides a communication method and apparatus, which realizes more accurate interference avoidance and reduces the interference to the terminal.

[0006] In a first aspect, a communication method is provided, which can be performed by a terminal, or by a module (e.g., a processor, a chip, or a chip system, etc.) applied to the terminal, or by a logic node, a logic module, or software that can implement all or part of the functions of the terminal. Taking the method applied to the terminal as an example, in the method, the terminal can receive first information from a first NTN device, the first information including a first set of hop beam periods, the first set of hop beam periods including at least one hop beam period for interference measurement. In this way, the terminal can perform interference measurement based on the first set of hop beam periods to obtain first measurement results, so that the terminal can send second information to the first NTN device based on the first measurement results, the second information being used for interference avoidance, the second information including at least one of the following: position information of the terminal, and a hop beam period in the first set of hop beam periods for interference avoidance.

[0007] It can be seen that, in the above embodiments, the terminal can perform interference measurement based on the first set of hop beam periods to obtain first measurement results, so that the terminal can request interference avoidance from the first NTN device based on the first measurement results, such as indicating the position information of the terminal and / or the hop beam period in the first set of hop beam periods for interference avoidance. In this way, the first NTN device can determine which NTN device should be notified to perform interference avoidance in combination with the position information of the terminal. On the one hand, this achieves targeted indication of which NTN devices should perform interference avoidance. On the other hand, the first NTN device can also indicate to the corresponding NTN device the hop beam period in the first set of hop beam periods for interference avoidance, to help these NTN devices perform interference avoidance in the hop beam period for interference avoidance, which achieves more accurate interference avoidance and reduces interference to the terminal. On the other hand, for the NTN devices performing interference avoidance, interference avoidance is selectively performed, i.e., interference avoidance is performed in the hop beam period in the first set of hop beam periods for interference avoidance. This is equivalent to performing interference avoidance in the part of the hop beam periods with stronger interference to the terminal, and not performing interference avoidance in another part of the hop beam periods with weaker interference to the terminal, so that the transmission of data in the hop beam periods not performing interference avoidance is not affected.

[0008] In a possible implementation, the terminal performs interference measurement based on the first set of hop beam periods to obtain first measurement results, including that the terminal can receive third information from the first NTN device, the third information including a first reference signal resource for interference measurement. In this way, the terminal can perform interference measurement based on the first set of hop beam periods and the first reference signal resource to obtain the first measurement results.

[0009] It can be seen that in the above embodiment, for each hop beam period in the first set of hop beam periods, the terminal can perform interference measurement based on the first reference signal resource, thereby helping the terminal to analyze the hop beam period in the first set of hop beam periods that performs interference avoidance.

[0010] In a possible implementation, the terminal sends second information to the first NTN device based on the first measurement result, including: the terminal determines the number of hop beam periods in the first set of hop beam periods that perform interference avoidance based on the first measurement result, and thereby sends the second information to the first NTN device in the case that the first condition is met. The first condition includes that the number of hop beam periods in the first set of hop beam periods that perform interference avoidance is greater than a first threshold.

[0011] It can be seen that in the above embodiment, the terminal knows the number of hop beam periods in the first set of hop beam periods that perform interference avoidance through the first measurement result, and thereby sends the second information to the first NTN device in the case that the number of hop beam periods in the first set of hop beam periods that perform interference avoidance is greater than a first threshold, i.e., sends the information that performs interference avoidance. This shows that the number of hop beam periods in the first set of hop beam periods that perform interference avoidance is enough to seriously affect the data transmission of the terminal, and the terminal will request to perform interference avoidance. If the condition of performing interference avoidance is not set, it means that the terminal can request to perform interference avoidance in any case. For example, the number of hop beam periods in the first set of hop beam periods that perform interference avoidance is less than the first threshold, which may not affect the data transmission of the terminal, and at this time the terminal requests to perform interference avoidance, which may cause other NTN devices to close the beam and thus affect the data transmission, and cannot guarantee the data transmission quality of other NTN devices. Therefore, in the case that the number of hop beam periods in the first set of hop beam periods that perform interference avoidance is greater than the first threshold, the second information is sent to the first NTN device, which reduces the problem that other NTN devices cannot perform data transmission due to beam closure, and guarantees the data transmission quality of other NTN devices.

[0012] In a possible implementation, the hop beam period in the first set of hop beam periods that performs interference avoidance satisfies a second condition, and the second condition includes at least one of the following: the signal power value of the first NTN device is greater than a second threshold, the interference superposition power value of at least one second NTN device is greater than a third threshold, the ratio of the interference superposition power value of at least one second NTN device to the noise power value is greater than a fourth threshold, and the ratio of the signal power value of the first NTN device to the interference superposition power value of at least one second NTN device is less than a fifth threshold. The at least one second NTN device is an NTN device adjacent to the first NTN device.

[0013] In a possible implementation, the first reference signal resource is a non zero power channel state information reference signal (NZP CSI-RS) resource, and the first measurement result includes a signal power value of the first NTN device in each hop beam period in the first set of hop beam periods; and the method further includes: determining, by the terminal, a second measurement result based on the first measurement result, the second measurement result including interference information of at least one second NTN device adjacent to the first NTN device in each hop beam period in the first set of hop beam periods; and determining, by the terminal, the number of hop beam periods in the first set of hop beam periods in which interference avoidance is performed based on the first measurement result, including: determining, by the terminal, the number of hop beam periods in the first set of hop beam periods in which interference avoidance is performed based on the first measurement result and the second measurement result.

[0014] In a possible implementation, the first reference signal resource includes a NZP CSI-RS resource and a zero power channel state information reference signal (ZP CSI-RS) resource, and the first measurement result includes a signal power value of the first NTN device in each hop beam period in the first set of hop beam periods and interference information of at least one second NTN device adjacent to the first NTN device in each hop beam period in the first set of hop beam periods.

[0015] In a possible implementation, the interference information of the at least one second NTN device in each hop beam period in the first set of hop beam periods includes at least one of: an interference superposition power value of the at least one second NTN device, a ratio of the interference superposition power value of the at least one second NTN device to a noise power value, and a ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one second NTN device.

[0016] In a possible implementation, the second information is further used to indicate an NTN device with the strongest interference among the NTN devices adjacent to the first NTN device.

[0017] In a possible implementation, the method further includes: receiving, by the terminal, fourth information from the first NTN device, the fourth information including a second set of beam hopping periods, the second set of beam hopping periods including at least one beam hopping period for interference measurement, and the at least one beam hopping period in the second set of beam hopping periods belonging to the first set of beam hopping periods. In this way, the terminal performs interference measurement based on the second set of beam hopping periods to obtain third measurement results, and thus can send fifth information to the first NTN device based on the third measurement results, the fifth information being used for canceling interference avoidance, and the fifth information including location information of the terminal.

[0018] It can be seen that, in the above embodiments, the terminal can perform interference measurement based on the second set of beam hopping periods to obtain third measurement results, and thus can request the first NTN device to cancel interference avoidance based on the third measurement results, such as indicating the location information of the terminal. In this way, the first NTN device can determine which NTN device should be notified to cancel interference avoidance in combination with the location information of the terminal. This achieves targeted indication of which NTN devices should cancel interference avoidance, so that these NTN devices can turn on beams to perform data transmission.

[0019] In a possible implementation, the terminal performs interference measurement based on the second set of beam hopping periods to obtain third measurement results, including: receiving, by the terminal, sixth information from the first NTN device, the sixth information including second reference signal resources for interference measurement, and thus performing interference measurement based on the second set of beam hopping periods and the second reference signal resources to obtain the third measurement results.

[0020] It can be seen that, in the above embodiments, for each beam hopping period in the second set of beam hopping periods, the terminal can perform interference measurement based on the second reference signal resources, which helps the terminal to analyze the beam hopping periods in the second set of beam hopping periods that cancel interference avoidance.

[0021] In a possible implementation, the terminal sends the fifth information to the first NTN device based on the third measurement results, including: determining, by the terminal, a number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance based on the third measurement results, and thus sending the fifth information to the first NTN device in a case where a third condition is met. The third condition includes that the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance is greater than a sixth threshold.

[0022] It can be seen that in the above embodiments, the terminal learns the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance through the third measurement result, so that in the case that the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance is greater than the sixth threshold, the fifth information is sent to the first NTN device, that is, the information for canceling interference avoidance is sent. This shows that the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance is sufficient, and does not affect the data transmission of the terminal, and the terminal will request to cancel the interference avoidance. If the condition for canceling the interference avoidance is not set, it means that the terminal can request to cancel the interference avoidance in any case. For example, the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance is less than the sixth threshold, that is, the number of beam hopping periods that seriously affect the data transmission of the terminal is sufficient, and at this time the terminal requests to cancel the interference avoidance, and more beam hopping periods that affect the data transmission of the terminal may occur. Therefore, in the case that the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance is greater than the sixth threshold, the sixth information is sent to the first NTN device, which can reduce the interference to the terminal and protect the data transmission quality of the terminal.

[0023] In a possible implementation, the beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance satisfy a fourth condition, and the fourth condition includes at least one of the following: a signal power value of the first NTN device is less than a seventh threshold, an interference superposition power value of at least one third NTN device is less than an eighth threshold, a ratio of the interference superposition power value of the at least one third NTN device to a noise power value is less than a ninth threshold, and a ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one third NTN device is greater than a tenth threshold. The at least one third NTN device is an NTN device adjacent to the first NTN device.

[0024] In a possible implementation, the second reference signal resource is an NZP CSI-RS resource, and the third measurement result includes a signal power value of the first NTN device in each beam hopping period in the second set of beam hopping periods. The method further includes: determining, by the terminal based on the third measurement result, a fourth measurement result, and the fourth measurement result includes interference information of at least one third NTN device in each beam hopping period in the second set of beam hopping periods. The at least one third NTN device is an NTN device adjacent to the first NTN device. Determining, by the terminal based on the third measurement result, the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance includes: determining, by the terminal based on the third measurement result and the fourth measurement result, the number of beam hopping periods in the second set of beam hopping periods that do not perform interference avoidance.

[0025] In a possible implementation, the second reference signal resource includes an NZP CSI-RS resource and a ZP CSI-RS resource, and the third measurement result includes a signal power value of the first NTN device in each of the second set of hop beam periods and interference information of at least one third NTN device in each of the second set of hop beam periods, the at least one third NTN device being an NTN device adjacent to the first NTN device.

[0026] In a possible implementation, the interference information of the at least one third NTN device in each of the second set of hop beam periods includes at least one of the following: an interference superposition power value of the at least one third NTN device, a ratio of the interference superposition power value of the at least one third NTN device to a noise power value, and a ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one third NTN device.

[0027] In a possible implementation, the fifth information is further used to indicate a hop beam period in the second set of hop beam periods in which no interference avoidance is performed.

[0028] In a second aspect, a communication method is provided, which can be executed by an NTN device, or by a module (for example, a processor, a chip, or a chip system, etc.) applied to the NTN device, and can also be implemented by a logic node, a logic module, or software that can implement all or part of the functions of the NTN device. Taking the method applied to a first NTN device as an example, in the method, the first NTN device can send first information to a terminal, the first information including a first set of hop beam periods, the first set of hop beam periods including at least one hop beam period for interference measurement. In this way, the first NTN device can receive second information from the terminal, the second information being used for interference avoidance, the second information including at least one of the following: position information of the terminal and a hop beam period in the first set of hop beam periods in which interference avoidance is performed, so as to send seventh information to at least one fourth NTN device based on the position information of the terminal, the at least one fourth NTN device being an NTN device adjacent to the first NTN device, the seventh information including at least one of the following: the position information of the terminal and the hop beam period in the first set of hop beam periods in which interference avoidance is performed.

[0029] It can be seen that in the above embodiments, the first NTN device can indicate the first set of beam hopping periods for interference measurement to the terminal, so that the terminal can perform interference measurement based on the first set of beam hopping periods to obtain a first measurement result, and can request the first NTN device to perform interference avoidance based on the first measurement result, such as indicating the position information of the terminal and / or the beam hopping periods in the first set of beam hopping periods for interference avoidance. In this way, the first NTN device can determine which NTN device should be notified to perform interference avoidance in combination with the position information of the terminal. On the one hand, this achieves targeted indication of which NTN devices should perform interference avoidance. On the other hand, the first NTN device can also indicate the beam hopping periods in the first set of beam hopping periods for interference avoidance to at least one fourth NTN device to help these NTN devices perform interference avoidance in the beam hopping periods for interference avoidance, which achieves more accurate interference avoidance and reduces interference to the terminal. On the other hand, the at least one fourth NTN device selectively performs interference avoidance, i.e., performs interference avoidance in the beam hopping periods for interference avoidance in the first set of beam hopping periods. This means that the part of the beam hopping periods with strong interference to the terminal perform interference avoidance, and the other part of the beam hopping periods with weak interference to the terminal do not perform interference avoidance, so that the transmission of data in the beam hopping periods that do not perform interference avoidance is not affected.

[0030] In a possible implementation, the second information is also used to indicate the NTN device with the strongest interference among the NTN devices adjacent to the first NTN device, and the at least one fourth NTN device includes the NTN device with the strongest interference among the NTN devices adjacent to the first NTN device.

[0031] In a possible implementation, the above method further includes: the first NTN device sends fourth information to the terminal, and the fourth information includes a second set of beam hopping periods, the second set of beam hopping periods includes at least one beam hopping period for interference measurement, and the at least one beam hopping period in the second set of beam hopping periods belongs to the first set of beam hopping periods. In this way, the first NTN device can receive fifth information from the terminal, the fifth information is used to cancel interference avoidance, and the fifth information includes the position information of the terminal, so as to send eighth information based on the position information of the terminal to at least one fifth NTN device, the at least one fifth NTN device is an NTN device adjacent to the first NTN device, and the eighth information is used to cancel interference avoidance.

[0032] It can be seen that in the above embodiments, the first NTN device can indicate the second set of hop beam periods for interference measurement to the terminal, so that the terminal can perform interference measurement based on the second set of hop beam periods to obtain a third measurement result, and can request the first NTN device to cancel interference avoidance based on the third measurement result, such as indicating the position information of the terminal. In this way, the first NTN device can determine which NTN device should cancel interference avoidance in combination with the position information of the terminal. This achieves targeted indication of which NTN devices should cancel interference avoidance, so that these NTN devices can turn on the beams to perform data transmission.

[0033] In a possible implementation, the method further includes that the first NTN device sends sixth information to the terminal, and the sixth information includes second reference signal resources for interference measurement.

[0034] In a possible implementation, the fifth information is further used to indicate hop beam periods in the second set of hop beam periods that do not perform interference avoidance, and the eighth information is further used to indicate hop beam periods in the second set of hop beam periods that do not perform interference avoidance.

[0035] It can be seen that in the above embodiments, the first NTN device can also indicate hop beam periods in the second set of hop beam periods that do not perform interference avoidance to at least one fifth NTN device, so that the at least one fifth NTN device can cancel interference avoidance in a targeted manner, i.e., cancel interference avoidance in hop beam periods in the second set of hop beam periods that do not perform interference avoidance, thereby reducing implementation complexity.

[0036] In a third aspect, a communication method is provided, which can be executed by an NTN device, or can also be executed by a module (such as a processor, a chip, or a chip system, etc.) applied to the NTN device, and can also be implemented by a logic node, a logic module, or software that can implement all or part of the functions of the NTN device. Taking the case that the method is applied to an NTN device adjacent to the first NTN device, in the method, seventh information from the first NTN device can be received, and the seventh information includes at least one of the following: position information of the terminal, and hop beam periods in the first set of hop beam periods that perform interference avoidance, so that interference avoidance can be performed based on the seventh information.

[0037] It can be seen that, in the above embodiments, for the NTN device adjacent to the first NTN device, interference avoidance can be performed based on the indication from the first NTN device, such as the position information of the terminal and / or the hop beam period in the first set of hop beam periods for interference avoidance. In one aspect, the NTN device adjacent to the first NTN device can perform interference avoidance in the hop beam period for interference avoidance, thereby achieving more accurate interference avoidance and reducing interference to the terminal. On the other hand, the NTN device adjacent to the first NTN device selectively performs interference avoidance, that is, performs interference avoidance in the hop beam period for interference avoidance in the first set of hop beam periods. This means that interference avoidance is performed in the part of the hop beam period with strong interference to the terminal, and interference avoidance is not performed in the other part of the hop beam period with weak interference to the terminal, so that the transmission of data in the hop beam period without performing interference avoidance is not affected.

[0038] In a possible implementation, the NTN device adjacent to the first NTN device performs interference avoidance based on the seventh information, including: determining the first beam that has been turned on based on the hop beam period for interference avoidance in the first set of hop beam periods. The first beam is turned off based on the spatial isolation degree of the first beam and the second beam. The second beam is a beam determined based on the position information of the terminal.

[0039] It can be seen that, in the above embodiments, for the NTN device adjacent to the first NTN device, the first beam can be turned off based on the spatial isolation degree of the first beam and the second beam. That is, the NTN device adjacent to the first NTN device does not blindly turn off the first beam, but turns off the first beam in combination with the spatial isolation degree of the first beam and the second beam, for example, the first beam and the second beam are turned off when the spatial isolation degree is less than a certain threshold. That is, the spatial isolation degree of the first beam and the second beam is small, which means that the first beam has strong interference to the terminal. In this way, the NTN device adjacent to the first NTN device turns off the first beam, which can reduce the interference to the terminal.

[0040] In a possible implementation, the above method further includes: receiving eighth information from the first NTN device, the eighth information being used to cancel interference avoidance, so as to cancel interference avoidance based on the eighth information.

[0041] It can be seen that, in the above embodiments, for the NTN device adjacent to the first NTN device, interference avoidance can be canceled based on the eighth information from the first NTN device, that is, the beam is turned on, so that data transmission can be performed.

[0042] In a possible implementation, the eighth information further includes a hop beam period in the second set of hop beam periods in which interference avoidance is not performed, and the cancelling interference avoidance based on the eighth information includes: determining the third beam that has been closed based on the hop beam period in the second set of hop beam periods in which interference avoidance is not performed, and opening the third beam.

[0043] It can be seen that, in the above embodiments, for the NTN device adjacent to the first NTN device, interference avoidance can be cancelled in a targeted manner in combination with the hop beam period in the second set of hop beam periods in which interference avoidance is not performed, and the implementation complexity is reduced.

[0044] In a fourth aspect, a communication apparatus is provided, which includes units or modules for implementing any of the methods in any of the first aspect to the third aspect. The communication apparatus can be a terminal, or a module (for example, a processor, a chip, or a chip system, etc.) of the terminal, or a logic node, a logic module, or software capable of implementing all or part of the terminal function. Alternatively, the communication apparatus can be an NTN device, or a module (for example, a processor, a chip, or a chip system, etc.) of the NTN device, or a logic node, a logic module, or software capable of implementing all or part of the NTN device function.

[0045] In a fifth aspect, a communication apparatus is provided, which includes at least one processor. The at least one processor is configured to execute any of the methods in any of the first aspect to the third aspect. The communication apparatus can be a terminal, or a module (for example, a processor, a chip, or a chip system, etc.) of the terminal, or a logic node, a logic module, or software capable of implementing all or part of the terminal function. Alternatively, the communication apparatus can be an NTN device, or a module (for example, a processor, a chip, or a chip system, etc.) of the NTN device, or a logic node, a logic module, or software capable of implementing all or part of the NTN device function. The at least one processor can execute a computer program or instructions in a memory, so that the above method is executed. The memory can be included in the communication apparatus, or located outside the communication apparatus. In addition, the communication apparatus can further include an interface.

[0046] In a sixth aspect, a computer-readable storage medium is provided, which stores computer instructions. When the computer instructions are executed, the computer executes any of the methods in any of the first aspect to the third aspect.

[0047] In a seventh aspect, a computer program product is provided, which includes computer program code. When the computer program code is run by a computer, the computer executes any of the methods in any of the first aspect to the third aspect.

[0048] In an eighth aspect, there is provided a chip or chip system comprising at least one processor and an interface, the processor being configured to read and execute instructions stored in a memory, which when executed cause the chip or chip system to perform any of the methods of any of the first to third aspects.

[0049] In a ninth aspect, there is provided a communication system comprising a terminal configured to perform any of the methods of the first aspect, an NTN device configured to perform any of the methods of the second aspect, and an NTN device configured to perform any of the methods of the third aspect. BRIEF DESCRIPTION OF DRAWINGS

[0050] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0051] FIG. 2 is a schematic diagram of a RAN architecture based on an NTN device according to an embodiment of the present application;

[0052] FIG. 3 is a schematic diagram of a wave site of a beam direction of each satellite transmitted in a hop-beam period according to an embodiment of the present application;

[0053] FIG. 4 is a schematic diagram of a communication method according to an embodiment of the present application;

[0054] FIG. 5 is a schematic diagram of a neighboring satellite of a service satellite according to an embodiment of the present application;

[0055] FIG. 6 is a schematic diagram of another communication method according to an embodiment of the present application;

[0056] FIG. 7 is a schematic diagram of a communication apparatus according to an embodiment of the present application;

[0057] FIG. 8 is a schematic diagram of another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the embodiments of the present application, the terms "system" and "network" can be used interchangeably. Unless otherwise specified, " / " represents an "or" relationship between the objects before and after the " / " symbol, for example, A / B can represent A or B; in the present application, "and / or" is only used to describe the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A alone, A and B together, and B alone, where A and B can be singular or plural. In addition, in the description of the present application, "multiple" means two or more than two. "At least one of the following" or similar expressions means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be one or more. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same function are distinguished by "first", "second", etc. The skilled in the art can understand that "first", "second", etc. do not limit the quantity and execution order, and "first", "second", etc. do not necessarily mean different.

[0059] In the embodiments of the present application, the reference to "one embodiment" or "some embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0060] The specific embodiments below further illustrate the objectives, technical solutions and beneficial effects of the present application. It should be understood that the following is only a specific embodiment of the present application and does not limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the present application shall be included in the protection scope of the present application.

[0061] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0062] The method provided by the embodiments of the present application can be applied to various communication systems, for example, can be an internet of things (IoT) system, a narrow band internet of things (NB-IoT) system, a long term evolution (LTE) system, a 5th-generation (5G) communication system, a new radio (NR) system or a new communication system in future communication development. Among them, the IoT network may, for example, include but not limited to vehicle networking. The communication mode in the vehicle networking system can be collectively referred to as vehicle-to-everything (V2X, X can represent any thing). For example, V2X can include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication or vehicle-to-network (V2N) communication, etc. The method provided by the embodiments of the present application can also be applied to NTN communication (also known as non-terrestrial network communication) or the scenario of fusion of NTN and terrestrial network (TN).

[0063] The method provided by the embodiments of the present application can be applied to a wireless local area network (WLAN) system, such as Wi-Fi, etc. The method provided by the embodiments of the present application can be applicable to institute of electrical and electronics engineers (IEEE) 802.11 series protocols, for example, 802.11be protocol, 802.11bn protocol or the next generation of 802.11bn protocol, etc., which will not be listed one by one.

[0064] The method provided by the embodiments of the present application can be applied between two entities in a communication system, for example, one of the two entities can send information to the other entity, or receive information sent by the other entity. In a wireless communication system, communication devices are included, and the communication devices can perform wireless communication by using air interface resources. The air interface resources can include at least one of time domain resources, frequency domain resources, code resources and space resources, which are not limited by the present application. For example, the two entities can include a network device and a terminal, or a chip which can be arranged in the network device, and a chip which can be arranged in the terminal, and the like. Of course, with the development of standards, other types of entities can also appear in the future, which are not limited by the embodiments of the present application.

[0065] The basic architecture of the communication system provided by the embodiments of the present application is introduced as follows. The communication system provided by the present application can include one or more network devices, and one or more terminals.

[0066] The system architecture shown in FIG. 1 is taken as an example for illustration. In FIG. 1, the communication system includes a network device 10 and a terminal 20 which communicates with the network device 10.

[0067] It should be noted that the number of network devices and terminals in FIG. 1 is only illustrative, and should not be regarded as a specific limitation of the present application. The terminal and network device involved in the system architecture are described in detail as follows.

[0068] I. Terminal

[0069] A terminal is an entity that receives a signal or transmits a signal or receives a signal and transmits a signal on a user side. The terminal is used to provide one or more of voice services and data connectivity services to a user. The terminal can be a device that includes a wireless transceiving function and can cooperate with a network device to provide communication services to a user. Specifically, the terminal can refer to a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a terminal, a wireless communication device, a user agent, a user apparatus, or a road side unit (RSU). The terminal can also be a drone, an internet of things (IoT) device, a station (ST) in a wireless local area network (WLAN), a cellular phone, a smart phone, a cordless phone, a wireless data card, a tablet computer, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a laptop computer, a machine type communication (MTC) terminal, a handheld device with a wireless communication function, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device (which can also be referred to as a wearable smart device), a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in remote medical treatment, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The terminal can also be a terminal in a 5G system or a terminal in a next-generation communication system, and embodiments of the present application do not limit the same.

[0070] Embodiments of the present application do not limit the device form of the terminal, and the device for implementing the function of the terminal can be the terminal; or can be a device capable of supporting the terminal to implement the function, such as a chip system. The device can be installed in the terminal or used with the terminal. In embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0071] II. Network device

[0072] The network device is an entity for transmitting a signal, or receiving a signal, or transmitting and receiving a signal on the network side. The network device can be a device deployed in a radio access network (RAN) to provide a wireless communication function for a terminal.

[0073] In a possible scenario, the network device can be a device with base station functions, such as an evolved NodeB (eNodeB), a transmitting and receiving point (TRP), a transmitting point (TP), a next generation NodeB (gNB), a base station in a future mobile communication system, an integrated access and backhaul (IAB) node, a non-ground network device, that is, a device that can be deployed on a high-altitude platform or a satellite, and the like. The network device can be a transmission reception point (TRP), a base station, various forms of control nodes. For example, a network controller, a radio controller, and the like. Specifically, the network device can be various forms of macro base stations, micro base stations (also referred to as small stations) in a heterogeneous network (HetNet) scenario, relay stations, access points (APs), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (for example, home evolved nodeBs, or home node Bs, HNBs), baseband units (BBUs) and remote radio units (RRUs) in a distributed base station scenario, transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, and the like, and can also be an antenna panel of a base station. The control node can connect multiple base stations and configure resources for multiple terminals under the coverage of the multiple base stations. In systems using different wireless access technologies, the names of devices with base station functions can be different. For example, it can be a gNB in 5G, or a network side device in a network after 5G or a network device in a future evolved public land mobile (communication) network (PLMN) network, or a device assuming base station functions in device-to-device (D2D) communication, machine-to-machine (M2M) communication, vehicle-to-vehicle communication, and the like. The specific name of the network device is not limited in the present application.The network device can also be a baseband pool (BBU pool) and RRU under an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), and the like.

[0074] In another possible scenario, a terminal is assisted by multiple network devices to implement wireless access, and different network devices respectively implement part of functions of a base station. For example, a network device can include a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), and the like. The CU and the DU can be separately arranged, or can be included in the same network element, for example, a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH). It can be understood that the network device can be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into a network device in a RAN, or the CU can be divided into a network device in a core network (CN), which is not limited here.

[0075] In different systems, the CU (or CU-CP and CU-UP), DU, or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU, and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0076] In the embodiments of this application, the form of the network device is not limited, and the device for implementing the functions of the network device can be the network device; or can be a device capable of supporting the network device to implement the functions, for example, a chip system. The device can be installed in the network device or used in combination with the network device.

[0077] For the convenience of understanding the content of the present scheme, the following will further explain the part of the language involved in the embodiments of the present application, so as to facilitate the understanding of the skilled in the art, this part is only for the convenience of understanding, and cannot be regarded as the specific limitation of the present application.

[0078] I. NTN

[0079] In the embodiments of the present application, the network equipment deployed in the air can be referred to as NTN equipment, and the network equipment deployed on the ground can be referred to as TN equipment. The NTN communication system includes at least one NTN equipment, and the network equipment in the TN communication system is TN equipment. The TN equipment is a network equipment that is stationary or moves slowly relative to the NTN equipment. That is, the NTN equipment can be a high-speed moving network equipment relative to the TN equipment.

[0080] The NTN equipment can include a satellite, a high-altitude platform (HAP), a drone, or a hot air balloon, etc., which is not limited here. The satellite can be a non-geostationary earth orbit (NGEO) medium earth orbit (MEO) satellite, a low earth orbit (LEO) satellite, a high-altitude communication platform (HAPS), an evolved NodeB (eNB) or a 5G base station (gNB), etc.

[0081] Among them, in the case of NTN equipment being a satellite, the satellite may have different functions in different scenarios, specifically:

[0082] 1. In a transparent satellite architecture shown in 2-1 of FIG. 2, the radio access network (RAN) can include remote radio units (RRUs) and base stations (e.g., gNBs of FIG. 2). The RRU can include satellites and NTN gateways. The satellites are used for radio frequency filtering and frequency conversion and amplification to ensure that the waveform signal repeated by the payload is un-changed. That is, the satellites mainly act as layer 1 (L1 for short) relay devices for regenerating the physical layer signal (i.e., the processing of radio frequency filtering, frequency conversion and amplification), without other higher protocol layers. The NTN gateway supports the function of forwarding all new radio-Uu (NR-Uu) interface signals. The NR-Uu interface is the interface between the terminal and the base station in the protocol.

[0083] 2. In a regenerative satellite without inter-satellite link architecture shown in 2-2 of FIG. 2, the RAN includes satellites and NTN gateways. The satellites act as base stations and have the processing functions of the base stations. The NTN gateway is a transport network layer node and supports the corresponding transport protocol. The satellites are connected with the NTN gateways through a satellite radio interface (SRI), and the NG interface is carried on the SRI (NG over SRI), responsible for the transmission of higher layer information.

[0084] 3. In a regenerative satellite with inter-satellite link architecture shown in 2-3 of FIG. 2, similar to 2-2 of FIG. 2, the difference is that there is an SRI, and multiple satellites can be connected through an Xn interface. Among them, the Xn interface is carried on the SRI (Xn over SRI).

[0085] 4. In a regenerative satellite architecture with a distributed unit (DU) handling function of a base station as shown in 2-4 of FIG. 2, the satellite acts as a DU in the base station, and performs the base station function together with a central unit (CU). Between the DU on the satellite and the CU on the ground, there is an NTN gateway. The NTN gateway is a transport network layer node that supports the corresponding transport protocol. The satellite and the NTN gateway are connected through an F1 interface, which is carried on the SRI (F1 over SRI).

[0086] 5. In a satellite architecture with integrated access and backhaul (IAB) function, the satellite acts as a base station with IAB function.

[0087] Wherein, when the satellite acts as a layer 1 relay device (i.e. in a transmissive satellite architecture as shown in 2-1 of FIG. 2), the communication system can further include a base station, which can be an evolved universal terrestrial radio access (E-UTRA) system, an NR system and a future wireless access system defined in the 3rd generation partnership project (3GPP), a WiFi system, an enhanced mobile broadband (eMBB), an ultra reliable low latency communication (URLLC), a massive machine type of communication (mMTC), a long range (LoRa) system or a vehicle-to-everything (V2X) system. The base station can also include two or more different wireless access systems. The base station can also be an open radio access network (RAN) (O-RAN).

[0088] II. Beam hopping (BH)

[0089] In the NTN communication system, the number of beams in the NTN device coverage area is usually large, but the number of beams simultaneously transmitted by the NTN device is much smaller than the number of beams in the NTN device coverage area. In order to enable the NTN device to serve all the beams in the coverage area, the beams of the NTN device can correspond to different beams at different times, i.e., in a time-division multiplexing beam manner, different beams of the NTN device provide services for terminals in the beams, which presents a kind of pattern that "jumps" over time, which is called beam hopping technology. Beam hopping technology plays a very important role in NTN communication system, which can better balance system performance and implementation complexity. For example, taking the NTN device as a satellite, in FIG. 3, the service time of the satellite is within [0, T], and it is assumed to contain N beam hopping periods (BHP), and the time length of each beam hopping period is T / N. From one beam hopping period to another beam hopping period, the beam pointed to by the beam transmitted by the satellite may change. For example, in FIG. 3, in the first beam hopping period, the beam pointed to by the beam transmitted by satellite 1 is the beam marked as '1' in FIG. 3, the beam pointed to by the beam transmitted by satellite 2 is the beam marked as '2' in FIG. 3, and the beam pointed to by the beam transmitted by satellite 4 is the beam marked as '4' in FIG. 3. In the second beam hopping period, the beam pointed to by the beam transmitted by satellite 1 is the beam marked as '1' in FIG. 3, the beam pointed to by the beam transmitted by satellite 2 is the beam marked as '2' in FIG. 3, and the beam pointed to by the beam transmitted by satellite 4 is the beam marked as '4' in FIG. 3. It can be seen that the beam pointed to by the beam transmitted by satellite 1 in the first beam hopping period is different from the beam pointed to by the beam transmitted by satellite 1 in the second beam hopping period, the beam pointed to by the beam transmitted by satellite 2 in the first beam hopping period is different from the beam pointed to by the beam transmitted by satellite 2 in the second beam hopping period, and the beam pointed to by the beam transmitted by satellite 4 in the first beam hopping period is different from the beam pointed to by the beam transmitted by satellite 4 in the second beam hopping period.

[0090] It should be understood that the present application does not limit the beam pointed to by the beam transmitted by the NTN device in the beam hopping period. For example, the beams pointed to by the beams transmitted by different NTN devices in the same beam hopping period can be partially the same, all the same, or all different. The beams pointed to by the beams transmitted by the same NTN device in different beam hopping periods can be partially the same, all the same, or all different.

[0091] III. EPHMERIS INFORMATION

[0092] The almanac information mentioned in this application is used to indicate the position or coverage of the satellite. For example, the almanac information can be the motion law information of the satellite, including the orbital parameters, angular velocity, speed, etc. of the satellite. Based on these information, the communication device can calculate the position of the satellite on the orbit at each moment. The almanac information can be represented as a simple correspondence, for example, the satellite position information corresponding to each moment / period. Or, the almanac information can be represented as a satellite coverage map, for example, satellite coverage availability information, the satellite coverage map can divide the earth's surface into a plurality of grid points, and show the grid points covered and not covered by the satellite at each moment. For example, the running period of the satellite around the earth is one hour, and the accuracy is minute. Each minute corresponds to a satellite coverage map of the satellite, some grid points in the map are bright and some are dark, and the bright grid points represent the grid points covered by the satellite at the corresponding moment in each cycle.

[0093] It is explained here that the almanac information involved in this application includes but is not limited to traditional almanac information, satellite map information and NTN gateway deployment information. Among them, the traditional almanac information includes but is not limited to orbital parameters, or parameters such as the position of the satellite calculated based on the orbital parameters. It can be understood that the traditional almanac information can be used to calculate, predict, depict, or track the time, position, speed, etc. of the satellite flight state. Exemplarily, the traditional almanac information can be 17 bytes of information to represent the position (78 bits) and speed (54 bits), or the traditional almanac information can be 18 bytes of information to represent the orbital parameters (such as semi-major axis, range, eccentricity, perigee angular distance, etc. Parameters). The satellite map information can be the range covered by the satellite on the map at each moment. The specific form, content and name of the almanac information in this application are not limited, and the definition of the almanac information in the existing protocol can be referred to. For example, the almanac information in this application can also be called satellite coverage information (satellite coverage availability information).

[0094] IV. Reference signal resource

[0095] The certain reference signal resource (e.g., the first reference signal resource or the second reference signal resource, etc.) mentioned in the present application can be a resource for channel estimation or channel measurement (CM). The channel estimation or channel measurement includes interference measurement (IM). Alternatively, the channel estimation or channel measurement can be interchangeably described with the interference measurement. Therefore, the reference signal resource is a resource for channel estimation or channel measurement, and can also be described as: the reference signal resource is a resource for interference measurement. For example, the reference signal resource can be a demodulation reference signal (DMRS) resource, a sounding reference signal (SRS) resource, a tracking reference signal (TRS) resource, a phase tracking reference signal (PTRS) resource, a channel state information reference signal (CSI-RS) resource, a positioning reference signal (PRS) resource, or a synchronization signal block (SSB) resource, etc. Here are some examples of the reference signal resource, and the present application does not limit them. Any resource that can be used for channel estimation, channel measurement or interference measurement can be understood as the reference signal resource in the present application.

[0096] Optionally, in the NR protocol, the CSI-RS resource can include a ZP CSI-RS resource and / or an NZP CSI-RS resource. The ZP CSI-RS resource can be referred to as a channel state information interference measurement (CSI-IM) resource. The NZP CSI-RS resource can be referred to as a channel state information channel measurement (CSI-CM) resource.

[0097] The embodiments of the present application are described in detail below.

[0098] Referring to FIG. 4, FIG. 4 is a flow diagram of a communication method according to an embodiment of the present application. As shown in FIG. 4, the method includes but is not limited to the following steps:

[0099] 401. The first NTN device sends first information to the terminal, the first information comprising a first set of hop beam periods, the first set of hop beam periods comprising at least one hop beam period for interference measurement.

[0100] Correspondingly, the terminal receives the first information from the first NTN device. The first NTN device provides service for the terminal. Alternatively, the NTN device that establishes a wireless connection with the terminal is the first NTN device. The wireless connection refers to a radio resource control (RRC) connection, etc.

[0101] Optionally, the first set of hop beam periods can be indicated by the first NTN device to the terminal, or predefined, which is not limited herein. For example, the first set of hop beam periods can be indicated by a configuration parameter in RRC signaling, MAC CE, downlink control information (DCI), or other signaling, which can be regarded as the first information being configuration information, comprising the configuration parameter. It can also be described that the first information can be carried in RRC signaling, MAC CE, DCI, or other signaling. The configuration parameter in the present application can also be referred to as a configuration field or an information element (IE).

[0102] The following illustrates how to indicate the 'first set of hop beam periods' through the first information.

[0103] As an example, the first set of hop beam periods can be indicated by different values of the first information, or by different values of part of the bits in the first information. For example, the first information comprises P bits, the P bits correspond to 2 P states, one of which represents a hop beam period in the first set of hop beam periods, and P is a positive integer. When P is greater than 1, it can also be said that different states corresponding to P bits can represent different hop beam periods in the first set of hop beam periods. For example, assuming that the first set of hop beam periods comprises 4 hop beam periods. P can be 2, corresponding to 4 states '00', '01', '10' and '11'. '00' can represent hop beam period 1 in the first set of hop beam periods. '01' can represent hop beam period 2 in the first set of hop beam periods. '10' can represent hop beam period 3 in the first set of hop beam periods. '11' can represent hop beam period 4 in the first set of hop beam periods.

[0104] As another example, the first information includes a bitmap, one bit in the bitmap corresponds to one of the first set of beam hopping periods. For example, the first bit (i.e., the leftmost bit, or the most significant bit (MSB)) in the bitmap corresponds to the first beam hopping period in the first set of beam hopping periods, the second bit corresponds to the second beam hopping period in the first set of beam hopping periods, and so on. That is, different bits in the bitmap correspond to different beam hopping periods in the first set of beam hopping periods. For example, the bits in the bitmap correspond to the beam hopping periods in ascending order of the indices of the beam hopping periods, or in descending order of the indices of the beam hopping periods. When a bit in the bitmap is set to 0, it indicates that the beam hopping period corresponding to the bit is not used for interference measurement. When the bit is set to 1, it indicates that the beam hopping period corresponding to the bit is used for interference measurement. Conversely, the same applies. For example, the bitmap can be 1101010110, i.e., the first bit from left to right is 1, indicating that the beam hopping period corresponding to the first bit is a beam hopping period used for interference measurement; the second bit from left to right is 1, indicating that the beam hopping period corresponding to the second bit is a beam hopping period used for interference measurement; the third bit from left to right is 0, indicating that the beam hopping period corresponding to the third bit is a beam hopping period not used for interference measurement, and so on, which will not be elaborated here.

[0105] 402. The terminal performs interference measurement based on the first set of beam hopping periods to obtain a first measurement result.

[0106] For example, the terminal performs interference measurement based on the first set of beam hopping periods and a first reference signal resource to obtain a first measurement result. The first reference signal resource can be indicated by the first NTN device to the terminal, or predefined, which is not limited here. For example, the terminal can receive third information from the first NTN device, the third information including the first reference signal resource used for interference measurement. Alternatively, the third information can be carried in RRC signaling, MAC CE, DCI, or other signaling. Alternatively, the first reference signal resource can be indicated by a configuration parameter in RRC signaling, MAC CE, DCI, or other signaling, which can be regarded as the third information being configuration information, including the configuration parameter. Alternatively, the first set of beam hopping periods and the first reference signal resource can be carried in the same signaling or different signaling. The signaling here can be RRC signaling, MAC CE, DCI, or other signaling.

[0107] The following illustrates how the terminal specifically obtains the first measurement result.

[0108] 1、Assume that the first reference signal resource is a NZP CSI-RS resource. For each beam hopping period in the first set of beam hopping periods, the terminal can perform interference measurement on the NZP CSI-RS resource to obtain a first measurement result. For example, the first set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 1 to beam hopping period 10. In the beam hopping period 1, the terminal performs interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device in the beam hopping period 1; in the beam hopping period 2, the terminal performs interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device in the beam hopping period 2; and so on. In this way, the first measurement result includes the signal power value of the first NTN device in the beam hopping period 1 to the signal power value of the first NTN device in the beam hopping period 10. That is, the first measurement result includes the signal power value of the first NTN device in each beam hopping period in the first set of beam hopping periods.

[0109] Among them, the signal power value involved in the present application can be used to describe the information related to channel quality. For example, it can include at least one of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), or received signal strength indicator (RSSI).

[0110] 2、Assume that the first reference signal resource includes a NZP CSI-RS resource and a ZP CSI-RS resource. In this way, for each beam hopping period in the first set of beam hopping periods, the terminal can perform interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device. For the ZP CSI-RS resource, the first NTN device can transmit NZP CSI-RS on the NZP CSI-RS resource. The first NTN device remains silent on the ZP CSI-RS resource. It can also be said that the first NTN device does not transmit any signal on the ZP CSI-RS resource, that is, the signal power value of the first NTN device on the ZP CSI-RS resource is 0. In this way, for each beam hopping period in the first set of beam hopping periods, the terminal can perform interference measurement on the ZP CSI-RS resource to obtain interference information of other NTN devices except the first NTN device, for example, interference information of at least one second NTN device.

[0111] For example, the first set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 1 to beam hopping period 10. In the beam hopping period 1, the terminal performs interference measurement on the NZP CSI-RS resource to obtain a signal power value of the first NTN device in the beam hopping period 1, and performs interference measurement on the ZP CSI-RS resource to obtain interference information of at least one second NTN device in the beam hopping period 1; in the beam hopping period 2, the terminal performs interference measurement on the NZP CSI-RS resource to obtain a signal power value of the first NTN device in the beam hopping period 2, and performs interference measurement on the ZP CSI-RS resource to obtain interference information of at least one second NTN device in the beam hopping period 2; and so on. In this way, the first measurement result includes the signal power value of the first NTN device in the beam hopping period 1, the interference information of at least one second NTN device in the beam hopping period 1, the signal power value of the first NTN device in the beam hopping period 2, and the interference information of at least one second NTN device in the beam hopping period 2, and so on. That is, the first measurement result includes the signal power value of the first NTN device in each beam hopping period in the first set of beam hopping periods and the interference information of at least one second NTN device in each beam hopping period in the first set of beam hopping periods.

[0112] Optionally, the second NTN device has an association relationship with the first NTN device, for example, the second NTN device is an NTN device adjacent to the first NTN device. In other words, the second NTN device satisfies at least one of the following conditions: the distance between the second NTN device and the first NTN device is less than or equal to a first threshold value, the distance between the second NTN device and the terminal is less than or equal to a second threshold value, the coverage area of the second NTN device partially overlaps, completely overlaps, or is adjacent to the coverage area of the first NTN device, the coverage area of the second NTN device includes an area indicated by the location information of the terminal, the pointing position of the beam transmitted by the second NTN device partially overlaps, completely overlaps, or is adjacent to the pointing position of the beam transmitted by the first NTN device, the signal transmitted by the second NTN device interferes with the terminal, or a cluster of NTN devices composed of a plurality of positionally adjacent NTN devices covers the terminal. The first threshold value and the second threshold value can be set according to actual needs, which are not limited here. Optionally, the cluster of NTN devices includes the first NTN device and the second NTN device. For example, taking a satellite as an NTN device, a plurality of positionally adjacent satellites can form a satellite cluster, the first NTN device can be a cluster head satellite in the satellite cluster, and the second NTN device can be a cluster member satellite in the satellite cluster. Conversely, the same is true. Optionally, the location information of the terminal can be the geographical position of the terminal, such as the latitude and longitude coordinates of the terminal. Alternatively, the location information of the terminal can be a geographical area in which the terminal is located, such as a latitude and longitude coordinate interval value containing the latitude and longitude coordinates of the terminal. Alternatively, the location information of the terminal can be a beam position or a beam position identifier.

[0113] Optionally, the number of NTN devices having an association relationship with the first NTN device in different hop beam periods in the first set of hop beam periods can be partially the same, completely the same, or completely different. For example, the first set of hop beam periods includes 10 hop beam periods, such as hop beam period 1 to hop beam period 10. The number of NTN devices adjacent to the first NTN device in any one of the hop beam period 1 to the hop beam period 10 is 3. That is, the number of NTN devices adjacent to the first NTN device in the 10 hop beam periods is the same. Alternatively, the number of NTN devices adjacent to the first NTN device in the hop beam period 1 is 3, the number of NTN devices adjacent to the first NTN device in the hop beam period 2 is 5, and the number of NTN devices adjacent to the first NTN device in any one of the hop beam period 3 to the hop beam period 10 is 7. That is, the number of NTN devices adjacent to the first NTN device in the 10 hop beam periods is partially the same.

[0114] Optionally, the NTN devices having an association relationship with the first NTN device in different hop beam periods in the first set of hop beam periods can be partially the same, completely the same, or completely different.

[0115] The interference information of the at least one second NTN device is described below.

[0116] The interference information of the at least one second NTN device can include at least one of the following: an interference superposition power value of the at least one second NTN device, a ratio of the interference superposition power value of the at least one second NTN device to a noise power value, and a ratio of a signal power value of the first NTN device to the interference superposition power value of the at least one second NTN device. Wherein, the interference superposition power value involved in the present application can include at least one of the following: RSRP, RSRQ, or RSSI.

[0117] 403、The terminal sends second information to the first NTN device based on the first measurement result, the second information being used for interference avoidance, and the second information including at least one of the following: position information of the terminal and a hop beam period in the first set of hop beam periods for interference avoidance.

[0118] Correspondingly, the first NTN device receives the second information from the terminal. Optionally, the second information can be carried in RRC signaling, uplink control information (UCI), or other signaling.

[0119] Optionally, the sending, by the terminal, of the second information to the first NTN device based on the first measurement result can include: determining, by the terminal, the number of the beam hopping periods in the first set of beam hopping periods for interference avoidance based on the first measurement result, and sending the second information to the first NTN device in a case where a first condition is met.

[0120] In this application, the interference avoidance can be replaced by coordinated beamforming, interference mitigation, interference suppression, interference avoidance, interference management, interference coordination, or radio resource management, etc., which is not limited here.

[0121] Optionally, the first condition includes that the number of the beam hopping periods in the first set of beam hopping periods for interference avoidance is greater than or equal to a first threshold. For example, it is assumed that the first set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 1 to beam hopping period 10. Among them, beam hopping period 1, beam hopping period 3, beam hopping period 5 and beam hopping period 6 are beam hopping periods for interference avoidance, that is, the number of beam hopping periods for interference avoidance in 10 beam hopping periods is 4. It is assumed that the first threshold is 3, and the number of beam hopping periods for interference avoidance in 10 beam hopping periods is greater than the first threshold. The first threshold can be set according to actual needs, which is not limited here. Optionally, the first threshold can be indicated by the first NTN device to the terminal, or predefined, which is not limited here.

[0122] The following illustrates how to determine the beam hopping periods in the first set of beam hopping periods for interference avoidance.

[0123] As an example, the number of beam hopping periods in the first set of beam hopping periods for interference avoidance can be determined based only on the first measurement result. For example, the first measurement result includes the signal power value of the first NTN device in each beam hopping period in the first set of beam hopping periods and the interference information of at least one second NTN device in each beam hopping period in the first set of beam hopping periods, and the terminal can determine the number of beam hopping periods in the first set of beam hopping periods for interference avoidance based on the first measurement result.

[0124] As another example, the number of the hop-beam periods in the first set of hop-beam periods for interference avoidance can be determined based on the first measurement result and the second measurement result. For example, the first measurement result includes a signal power value of the first NTN device in each hop-beam period in the first set of hop-beam periods, and the second measurement result includes interference information of at least one second NTN device in each hop-beam period in the first set of hop-beam periods. The terminal can determine the number of the hop-beam periods in the first set of hop-beam periods for interference avoidance based on the first measurement result and the second measurement result. Here, the second measurement result can be determined based on the first measurement result. For example, for each hop-beam period in the first set of hop-beam periods, the terminal can subtract a product of the signal power value of the first NTN device in the corresponding hop-beam period in the first measurement result and the NZP CSI-RS of the first NTN device from the NZP CSI-RS of the first NTN device to obtain an interference signal of the at least one second NTN device, and determine the interference information of the at least one second NTN device based on the interference signal of the at least one second NTN device. For example, assume that the first set of hop-beam periods includes 10 hop-beam periods, e.g., hop-beam period 1 to hop-beam period 10. In the hop-beam period 1, the terminal can subtract a product of the signal power value of the first NTN device in the hop-beam period 1 and the NZP CSI-RS of the first NTN device from the NZP CSI-RS of the first NTN device to obtain an interference signal of the at least one second NTN device, and determine the interference information of the at least one second NTN device based on the interference signal of the at least one second NTN device. In the hop-beam period 2, the terminal can subtract a product of the signal power value of the first NTN device in the hop-beam period 2 and the NZP CSI-RS of the first NTN device from the NZP CSI-RS of the first NTN device to obtain an interference signal of the at least one second NTN device, and determine the interference information of the at least one second NTN device based on the interference signal of the at least one second NTN device. And so on.

[0125] Optionally, the hop beam periods in the first set of hop beam periods that perform interference avoidance satisfy a second condition, and the second condition includes at least one of the following: the signal power value of the first NTN device is greater than a second threshold, the interference superposition power value of the at least one second NTN device is greater than a third threshold, the ratio of the interference superposition power value of the at least one second NTN device to the noise power value is greater than a fourth threshold, and the ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one second NTN device is less than a fifth threshold. That is, the hop beam periods in the first set of hop beam periods that satisfy the second condition are the hop beam periods in the first set of hop beam periods that perform interference avoidance. For example, assuming that the first set of hop beam periods includes 10 hop beam periods, such as hop beam period 1 to hop beam period 10. Among them, the hop beam period 1 satisfies the second condition, for example, the signal power value of the first NTN device in the hop beam period 1 is greater than the second threshold, the interference superposition power value of the at least one second NTN device in the hop beam period 1 is greater than the third threshold, the ratio of the interference superposition power value of the at least one second NTN device to the noise power value in the hop beam period 1 is greater than the fourth threshold, and the ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one second NTN device in the hop beam period 1 is less than the fifth threshold. This can be regarded as the hop beam period 1 being the hop beam period in the first set of hop beam periods that performs interference avoidance.

[0126] Any one or more of the second threshold to the fifth threshold can be indicated by the first NTN device to the terminal, or predefined, which is not limited here, for example, any one or more of the second threshold to the fifth threshold can be carried in the same signaling or different signaling as the first set of hop beam periods. The signaling here can be RRC signaling, MAC CE, DCI or other signaling. Optionally, any one or more of the second threshold to the fifth threshold can be carried in the same signaling as the first set of hop beam periods, or it can be described that the first information is also used to indicate any one or more of the second threshold to the fifth threshold. Any one or more of the second threshold to the fifth threshold can be set according to actual needs, which is not limited here.

[0127] The following illustrates how to indicate 'the hop beam periods in the first set of hop beam periods that perform interference avoidance' through the second information.

[0128] As an example, the hop beam periods in the first set of hop beam periods that perform interference avoidance can be indicated by different values of the second information, or by different values of part of the bits in the second information. For example, the second information includes Q bits, and the Q bits correspond to 2 QOne of the states, one of the states represents one of the first set of hop beam periods in which interference avoidance is performed, and Q is a positive integer. When Q is greater than 1, it can also be said that the different states corresponding to the Q bits can represent different hop beam periods in the first set of hop beam periods in which interference avoidance is performed. For example, assuming that the hop beam periods in which interference avoidance is performed in the first set of hop beam periods include 4 hop beam periods, such as hop beam period 1 to hop beam period 4. Q can be 2, corresponding to 4 states '00', '01', '10' and '11'. '00' can represent hop beam period 1. '01' can represent hop beam period 2. '10' can represent hop beam period 3. '11' can represent hop beam period 4.

[0129] As another example, the second information includes a bit map, one bit in the bit map corresponds to one of the first set of hop beam periods in which interference avoidance is performed. For example, the first bit (i.e. the leftmost bit, or the most significant bit (MSB)) in the bit map corresponds to hop beam period 1 in which interference avoidance is performed in the first set of hop beam periods, the second bit corresponds to hop beam period 2 in which interference avoidance is performed in the first set of hop beam periods, and so on. That is, different bits in the bit map correspond to different hop beam periods in which interference avoidance is performed in the first set of hop beam periods. For example, in order of the index of the hop beam period from small to large, the bits in the bit map are one-to-one corresponding. Or, in order of the index of the hop beam period from large to small, the bits in the bit map are one-to-one corresponding. Wherein when a bit in the bit map is set to 0, it indicates that the hop beam period corresponding to the bit is not a hop beam period in which interference avoidance is performed. When the bit is set to 1, it indicates that the hop beam period corresponding to the bit is a hop beam period in which interference avoidance is performed. Conversely, it can also be. For example, the bit map can be 1101010110, that is, the first bit from left to right is 1, indicating that the hop beam period corresponding to the first bit is a hop beam period in which interference avoidance is performed; the second bit from left to right is 1, indicating that the hop beam period corresponding to the second bit is a hop beam period in which interference avoidance is performed; the third bit from left to right is 0, indicating that the hop beam period corresponding to the third bit is not a hop beam period in which interference avoidance is performed, and so on, which will not be elaborated here. Wherein 'not performing interference avoidance' here can also be understood as canceling interference avoidance.

[0130] Optionally, the second information can also be used to indicate the NTN device that interferes the most among the neighboring NTN devices of the first NTN device, such as the physical cell identifier (PCI) corresponding to the NTN device that interferes the most among the neighboring NTN devices of the first NTN device. That is, the second information includes the PCI corresponding to the NTN device that interferes the most among the at least one second NTN device.

[0131] The following illustrates how the terminal determines the NTN device with the strongest interference among the at least one second NTN device.

[0132] For example, the terminal has N antennas, that is, the terminal has beamforming capability. The terminal can measure the interference signals on the N antennas and estimate the angle of arrival based on the interference signals on the N antennas, so as to obtain the angle of arrival corresponding to the NTN device with the strongest interference. In this way, the terminal can determine the NTN device with the strongest interference according to the angle of arrival. Wherein, N is an integer greater than or equal to 1. The interference signal here can be a wireless signal used for interference measurement, such as CSI-RS, etc., which is not limited herein.

[0133] 404、The first NTN device sends seventh information to the at least one fourth NTN device based on the position information of the terminal, the seventh information including at least one of the following: the position information of the terminal, the hop beam period in the first set of hop beam periods for interference avoidance.

[0134] Correspondingly, the fourth NTN device receives the seventh information from the first NTN device.

[0135] For example, the first NTN device can determine the at least one fourth NTN device based on the location information of the terminal and the ephemeris information of the one or more other NTN devices than the first NTN device. For example, the first NTN device can determine an NTN device with a distance to the terminal less than or equal to a third threshold value based on the location information of the terminal and the ephemeris information of the one or more other NTN devices, and take such an NTN device as the fourth NTN device. Wherein, the one or more other NTN devices include the at least one second NTN device described above, and the at least one second NTN device can have a distance to the terminal less than or equal to a second threshold value, i.e., the at least one second NTN device is adjacent to the first NTN device. That is, the one or more other NTN devices can include an NTN device adjacent to the first NTN device. The one or more other NTN devices can also include an NTN device not adjacent to the first NTN device. In this way, the first NTN device determines an NTN device with a distance to the terminal less than or equal to a third threshold value based on the location information of the terminal and the ephemeris information of the one or more other NTN devices, or the first NTN device determines an NTN device with a distance to the terminal less than or equal to a third threshold value based on the location information of the terminal and the ephemeris information of an NTN device adjacent to the first NTN device. Optionally, the third threshold value is less than the second threshold value, and the third threshold value can be set according to actual needs, which is not limited here. That is, the first NTN device selects an NTN device closer to the terminal and causing greater interference to the terminal from the 'NTN device adjacent to the first NTN device' as the fourth NTN device, and sends the seventh information to the fourth NTN device to request the fourth NTN device to perform interference avoidance. Therefore, in a possible implementation, the at least one fourth NTN device can be regarded as an NTN device for interference avoidance. It can also be described as: the at least one fourth NTN device is an NTN device adjacent to the first NTN device. Or, the at least one fourth NTN device belongs to the at least one second NTN device.

[0136] Optionally, in the case where the second information indicates an NTN device with the strongest interference among the NTN devices adjacent to the first NTN device, the at least one fourth NTN device can include the NTN device with the strongest interference among the NTN devices adjacent to the first NTN device.

[0137] The manner in which the seventh information indicates the 'hop beam period in the first set of hop beam periods in which interference avoidance is performed' can refer to the manner in which the second information indicates the 'hop beam period in the first set of hop beam periods in which interference avoidance is performed', and details are not repeated here. Alternatively, the process of transmitting the seventh information to the at least one fourth NTN device can refer to the existing scheme, such as the scheme in the existing version of the communication standard. Or, the scheme in the future communication standard. For example, in the case where the first NTN device and the at least one fourth NTN device are both satellites, the seventh information can be transmitted by the first NTN device through an inter-satellite link between the first NTN device and each of the at least one fourth NTN device. Alternatively, the first NTN device and the at least one fourth NTN device are configured to transparently transmit information and / or signaling of the same ground base station, and the seventh information can be forwarded by the first NTN device to the at least one fourth NTN device through the ground base station.

[0138] 405. The fourth NTN device performs interference avoidance based on the seventh information.

[0139] Generally, in the same hop beam period in the first set of hop beam periods in which interference avoidance is performed, the fourth NTN device can have one or more beams turned on. That is, in the same hop beam period in the first set of hop beam periods in which interference avoidance is performed, the fourth NTN device can transmit one or more beams. In order to reduce interference, in each hop beam period in the first set of hop beam periods in which interference avoidance is performed, the fourth NTN device can determine whether to perform interference avoidance on the turned-on beam, that is, whether to turn off the turned-on beam. Because the manner in which the fourth NTN device determines whether to perform interference avoidance on the turned-on beam is similar in the determination of whether to perform interference avoidance on any one of the turned-on beams in each hop beam period in the first set of hop beam periods in which interference avoidance is performed, in order to facilitate description, whether to perform interference avoidance is introduced by taking a first beam turned on in a certain hop beam period in the first set of hop beam periods in which interference avoidance is performed (such as the first hop beam period) as an example, which should not be regarded as a limitation to the present application. For example, the fourth NTN device can turn off the first beam based on the spatial isolation between the first beam and a second beam.

[0140] The second beam is a beam determined based on the position information of the terminal. As an example, the second beam can be a beam of the one or more beams that are turned on in the first hop beam period and that is close to the area indicated by the position information of the terminal. That is, the area pointed to by the second beam is adjacent to the area indicated by the position information of the terminal. As in 5-1 of FIG. 5, the area indicated by the position information of the terminal is the area labeled as '1' in 5-1 of FIG. 5, and the area pointed to by the beam turned on by the neighboring satellite of the serving satellite is the area labeled as '2' in 5-1 of FIG. 5, and the area labeled as '1' in 5-1 of FIG. 5 is adjacent to the area labeled as '2' in 5-1 of FIG. 5. Alternatively, the area pointed to by the second beam overlaps with the area indicated by the position information of the terminal, including partially overlapping or completely overlapping. As in 5-2 of FIG. 5, the area indicated by the position information of the terminal is the area labeled as '1' in 5-2 of FIG. 5, and the area pointed to by the beam turned on by the neighboring satellite of the serving satellite is the area labeled as '2' in 5-2 of FIG. 5, and the area labeled as '1' in 5-2 of FIG. 5 overlaps with the area labeled as '2' in 5-2 of FIG. 5. As another example, the second beam can be a virtual beam close to the area indicated by the position information of the terminal, and the fourth NTN device does not transmit the second beam in the first hop beam period.

[0141] The following describes how the fourth NTN device 'turns off the first beam based on the spatial isolation degree between the first beam and the second beam.

[0142] For example, the first beam is turned off in a case where the spatial isolation degree between the first beam and the second beam is less than or equal to a fourth threshold value. The fourth threshold value can be set according to actual needs, which is not limited here. Alternatively, the fourth threshold value can be indicated by the first NTN device to the fourth NTN device, or predefined, which is not limited here.

[0143] The terminal can perform interference measurement based on the first set of hop beam periods to obtain a first measurement result, so as to request the first NTN device for interference avoidance based on the first measurement result, such as indicating the position information of the terminal and / or the hop beam period in the first set of hop beam periods for interference avoidance. In this way, the first NTN device can determine which NTN device should be notified for interference avoidance in combination with the position information of the terminal. On the one hand, this realizes targeted indication of which NTN devices should be indicated for interference avoidance. On the other hand, the first NTN device can also indicate to the corresponding NTN device the hop beam period in the first set of hop beam periods for interference avoidance, to help these NTN devices perform interference avoidance in the hop beam period for interference avoidance, which realizes more accurate interference avoidance and reduces interference to the terminal.

[0144] Referring to FIG. 6, FIG. 6 is a flow diagram of another communication method according to an embodiment of the present application. The embodiment shown in FIG. 6 can be combined with the embodiment shown in FIG. 4, for example, the embodiment shown in FIG. 4 further includes the following steps:

[0145] 601. The first NTN device sends fourth information to the terminal, the fourth information including a second set of beam hopping periods, the second set of beam hopping periods including at least one beam hopping period for interference measurement.

[0146] Correspondingly, the terminal receives the fourth information from the first NTN device.

[0147] Optionally, the second set of beam hopping periods can be indicated by the first NTN device to the terminal, or predefined, which is not limited herein. For example, the second set of beam hopping periods can be indicated by configuration parameters in RRC signaling, MAC CE, DCI or other signaling, which can be regarded as the fourth information being configuration information including configuration parameters. It can also be described that the fourth information can be carried in RRC signaling, MAC CE, DCI or other signaling.

[0148] Wherein, the way of indicating the second set of beam hopping periods by the fourth information can refer to the way of indicating the first set of beam hopping periods by the first information in step 401, which is not described herein.

[0149] Optionally, at least one beam hopping period in the second set of beam hopping periods can belong to the first set of beam hopping periods. That is, the first set of beam hopping periods and the second set of beam hopping periods have at least one same beam hopping period. For example, the first set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 1 to beam hopping period 10. The second set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 3 to beam hopping period 13. That is, the first set of beam hopping periods and the second set of beam hopping periods both include beam hopping period 3 to beam hopping period 10.

[0150] 602. The terminal performs interference measurement based on the second set of beam hopping periods to obtain a third measurement result.

[0151] For example, the terminal performs interference measurement based on the second set of beam hopping periods and the second reference signal resource to obtain third measurement results. The second reference signal resource can be indicated to the terminal by the second NTN device or predefined, which is not limited herein. For example, the terminal can receive sixth information from the second NTN device, and the sixth information includes the second reference signal resource for interference measurement. Optionally, the sixth information can be carried in RRC signaling, MAC CE, DCI or other signaling. Alternatively, the second reference signal resource can be indicated by a configuration parameter in RRC signaling, MAC CE, DCI or other signaling, which can be regarded as the sixth information being configuration information including the configuration parameter. Optionally, the second set of beam hopping periods and the second reference signal resource can be carried in the same signaling or different signaling. The signaling herein can be RRC signaling, MAC CE, DCI or other signaling.

[0152] The following illustrates how the terminal specifically obtains the third measurement results.

[0153] 1. Assuming that the second reference signal resource is an NZP CSI-RS resource. In this way, for each beam hopping period in the second set of beam hopping periods, the terminal can perform interference measurement on the NZP CSI-RS resource to obtain the third measurement results. For example, the second set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 3 to beam hopping period 13. In the beam hopping period 3, the terminal performs interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device in the beam hopping period 3; in the beam hopping period 4, the terminal performs interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device in the beam hopping period 4; and so on. In this way, the third measurement results include the signal power value of the first NTN device in the beam hopping period 3 to the signal power value of the first NTN device in the beam hopping period 10. That is, the third measurement results include the signal power value of the first NTN device in each beam hopping period in the second set of beam hopping periods.

[0154] 2、Assume that the second reference signal resource includes a NZP CSI-RS resource and a ZP CSI-RS resource. In this way, for each beam hopping period in the second set of beam hopping periods, the terminal can perform interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device. For the ZP CSI-RS resource, the first NTN device remains silent on the ZP CSI-RS resource. In other words, the first NTN device does not transmit any signal on the ZP CSI-RS resource, i.e., the signal power value of the first NTN device on the ZP CSI-RS resource is 0. In this way, for each beam hopping period in the second set of beam hopping periods, the terminal performs interference measurement on the ZP CSI-RS resource to obtain interference information of other NTN devices than the first NTN device, e.g., interference information of at least one third NTN device.

[0155] For example, the second set of beam hopping periods includes 10 beam hopping periods, e.g., beam hopping period 3 to beam hopping period 13. In the beam hopping period 3, the terminal performs interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device in the beam hopping period 3, and performs interference measurement on the ZP CSI-RS resource to obtain the interference information of at least one third NTN device in the beam hopping period 3. In the beam hopping period 4, the terminal performs interference measurement on the NZP CSI-RS resource to obtain the signal power value of the first NTN device in the beam hopping period 4, and performs interference measurement on the ZP CSI-RS resource to obtain the interference information of at least one third NTN device in the beam hopping period 4, and so on. In this way, the third measurement result includes the signal power value of the first NTN device in the beam hopping period 3, the interference information of at least one third NTN device in the beam hopping period 3, the signal power value of the first NTN device in the beam hopping period 4, and the interference information of at least one third NTN device in the beam hopping period 4, and so on. In other words, the third measurement result includes the signal power value of the first NTN device in each beam hopping period in the second set of beam hopping periods and the interference information of at least one third NTN device in each beam hopping period in the second set of beam hopping periods.

[0156] Optionally, the third NTN device has an association relationship with the first NTN device, for example, the third NTN device is an NTN device adjacent to the first NTN device. In other words, the third NTN device satisfies at least one of the following conditions: the distance between the third NTN device and the first NTN device is less than or equal to a first threshold value, the distance between the third NTN device and the terminal is less than or equal to a second threshold value, the coverage area of the third NTN device partially overlaps, completely overlaps, or is adjacent to the coverage area of the first NTN device, the coverage area of the third NTN device includes the area indicated by the location information of the terminal, the beam direction of the beam transmitted by the third NTN device partially overlaps, completely overlaps, or is adjacent to the beam direction of the beam transmitted by the first NTN device, the signal transmitted by the third NTN device interferes with the terminal, or a cluster of NTN devices composed of multiple locationally adjacent NTN devices covers the terminal, etc. The first threshold value and the second threshold value can be set according to actual needs, and are not limited here. Optionally, the cluster of NTN devices includes the first NTN device and the third NTN device. For example, taking a satellite as an NTN device, multiple locationally adjacent satellites can form a satellite cluster, the first NTN device can be a cluster head satellite in the satellite cluster, and the third NTN device can be a cluster member satellite in the satellite cluster. Conversely, the same is true.

[0157] Optionally, the number of NTN devices having an association relationship with the first NTN device in different hop beam periods in the second set of hop beam periods can be partially the same, completely the same, or completely different. The NTN devices having an association relationship with the first NTN device in different hop beam periods in the first set of hop beam periods can be partially the same, completely the same, or completely different.

[0158] The interference information of the at least one third NTN device is described below.

[0159] The interference information of the at least one third NTN device can include at least one of the following: an interference superposition power value of the at least one third NTN device, a ratio of the interference superposition power value of the at least one third NTN device to a noise power value, and a ratio of a signal power value of the first NTN device to the interference superposition power value of the at least one third NTN device.

[0160] 603. The terminal sends fifth information to the first NTN device based on the third measurement result, the fifth information being used for canceling interference avoidance, and the fifth information including location information of the terminal.

[0161] Correspondingly, the first NTN device receives the fifth information from the terminal. Optionally, the fifth information can be carried in RRC signaling, UCI, or other signaling.

[0162] Optionally, the sending, by the terminal, of the fifth information to the first NTN device based on the third measurement result can include that the terminal determines the number of the beam hopping periods in the second set of beam hopping periods in which interference avoidance is not performed based on the third measurement result, and sends the fifth information to the first NTN device when a third condition is met.

[0163] Optionally, the third condition includes that the number of the beam hopping periods in the second set of beam hopping periods in which interference avoidance is not performed is greater than or equal to a sixth threshold value. For example, it is assumed that the second set of beam hopping periods includes 10 beam hopping periods, such as beam hopping period 3 to beam hopping period 13. Among them, beam hopping period 3, beam hopping period 5, beam hopping period 7 and beam hopping period 10 are beam hopping periods in which interference avoidance is not performed, that is, the number of beam hopping periods in which interference avoidance is not performed in the 10 beam hopping periods is 4. It is assumed that the sixth threshold value is 3, and the number of beam hopping periods in which interference avoidance is not performed in the 10 beam hopping periods is greater than the sixth threshold value. The sixth threshold value can be set according to actual needs, which is not limited here. Optionally, the sixth threshold value can be indicated by the first NTN device to the terminal, or predefined, which is not limited here.

[0164] The following illustrates how to determine the beam hopping periods in the second set of beam hopping periods in which interference avoidance is not performed.

[0165] As an example, the number of beam hopping periods in the second set of beam hopping periods in which interference avoidance is not performed can be determined based only on the third measurement result. For example, the third measurement result includes the signal power value of the first NTN device in each beam hopping period in the second set of beam hopping periods and the interference information of at least one third NTN device in each beam hopping period in the second set of beam hopping periods, and the terminal can determine the number of beam hopping periods in the second set of beam hopping periods in which interference avoidance is not performed based on the third measurement result.

[0166] As another example, the number of the hop beam periods in the second set of hop beam periods in which interference avoidance is not performed can be determined based on the third measurement result and a fourth measurement result. For example, the third measurement result includes a signal power value of the first NTN device in each of the hop beam periods in the second set of hop beam periods, and the fourth measurement result includes interference information of at least one third NTN device in each of the hop beam periods in the second set of hop beam periods. The terminal can determine the number of the hop beam periods in the second set of hop beam periods in which interference avoidance is not performed based on the third measurement result and the fourth measurement result. Here, the fourth measurement result can be determined based on the third measurement result. For example, for each of the hop beam periods in the second set of hop beam periods, the terminal can subtract a product of the signal power value of the first NTN device in the corresponding hop beam period in the third measurement result and the NZP CSI-RS of the first NTN device from the NZP CSI-RS of the first NTN device to obtain an interference signal of the at least one third NTN device, and determine the interference information of the at least one third NTN device based on the interference signal of the at least one third NTN device. For example, assume that the second set of hop beam periods includes 10 hop beam periods, e.g., hop beam period 3 to hop beam period 13. In the hop beam period 3, the terminal can subtract a product of the signal power value of the first NTN device in the hop beam period 3 and the NZP CSI-RS of the first NTN device from the NZP CSI-RS of the first NTN device to obtain an interference signal of the at least one third NTN device, and determine the interference information of the at least one third NTN device based on the interference signal of the at least one third NTN device. In the hop beam period 4, the terminal can subtract a product of the signal power value of the first NTN device in the hop beam period 4 and the NZP CSI-RS of the first NTN device from the NZP CSI-RS of the first NTN device to obtain an interference signal of the at least one third NTN device, and determine the interference information of the at least one third NTN device based on the interference signal of the at least one third NTN device. And so on.

[0167] Optionally, the second set of hop beam periods in which interference avoidance is not performed satisfies a fourth condition, and the fourth condition includes at least one of: the signal power value of the first NTN device being less than a seventh threshold value, the interference superposition power value of the at least one third NTN device being less than an eighth threshold value, the ratio of the interference superposition power value of the at least one third NTN device to the noise power value being less than a ninth threshold value, and the ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one third NTN device being greater than a tenth threshold value. That is, the hop beam period in the second set of hop beam periods that satisfies the fourth condition is the hop beam period in the second set of hop beam periods in which interference avoidance is not performed. For example, assuming that the second set of hop beam periods includes 10 hop beam periods, such as hop beam period 3 to hop beam period 13. Among them, the hop beam period 3 satisfies the fourth condition, for example, the signal power value of the first NTN device in the hop beam period 3 is less than the seventh threshold value, the interference superposition power value of the at least one third NTN device in the hop beam period 3 is less than the eighth threshold value, the ratio of the interference superposition power value of the at least one third NTN device to the noise power value in the hop beam period 3 is less than the ninth threshold value, and the ratio of the signal power value of the first NTN device to the interference superposition power value of the at least one third NTN device in the hop beam period 3 is greater than the tenth threshold value. This can be regarded as the hop beam period 3 being the hop beam period in the second set of hop beam periods in which interference avoidance is not performed.

[0168] Among them, any one or more of the seventh threshold value to the tenth threshold value can be indicated by the first NTN device to the terminal, or predefined, which is not limited here, for example, any one or more of the seventh threshold value to the tenth threshold value can be carried in the same signaling or different signaling as the second set of hop beam periods. The signaling here can be RRC signaling, MAC CE, DCI or other signaling. Optionally, any one or more of the seventh threshold value to the tenth threshold value can be carried in the same signaling as the second set of hop beam periods, and it can also be described that the first information is also used to indicate any one or more of the seventh threshold value to the tenth threshold value. Among them, any one or more of the seventh threshold value to the tenth threshold value can be set according to actual needs, which is not limited here.

[0169] Optionally, the fifth information can also be used to indicate the hop beam period in the second set of hop beam periods in which interference avoidance is not performed. Wherein the way in which the fifth information indicates the 'hop beam period in the second set of hop beam periods in which interference avoidance is not performed' can refer to the way in which the second information indicates the 'hop beam period in the first set of hop beam periods in which interference avoidance is performed', which is not described here.

[0170] 604、The first NTN device sends eighth information to the at least one fifth NTN device based on the location information of the terminal, and the eighth information is used to cancel interference avoidance.

[0171] Accordingly, the fifth NTN device receives the eighth information from the first NTN device.

[0172] For example, the first NTN device can determine the at least one fifth NTN device based on the position information of the terminal and the ephemeris information of the other one or more NTN devices than the first NTN device. For example, the first NTN device can determine the NTN device with a distance to the terminal less than or equal to a third threshold value based on the position information of the terminal and the ephemeris information of the other one or more NTN devices, and take such NTN device as the fifth NTN device. Wherein, the other one or more NTN devices include the at least one third NTN device described above, and the at least one third NTN device can have a distance to the terminal less than or equal to a second threshold value, i.e., the at least one third NTN device is adjacent to the first NTN device. That is, the other one or more NTN devices can include the NTN device adjacent to the first NTN device. The other one or more NTN devices can also include the NTN device not adjacent to the first NTN device. In this way, the first NTN device determines the NTN device with a distance to the terminal less than or equal to a third threshold value based on the position information of the terminal and the ephemeris information of the other one or more NTN devices, or the first NTN device determines the NTN device with a distance to the terminal less than or equal to a third threshold value based on the position information of the terminal and the ephemeris information of the NTN device adjacent to the first NTN device. Optionally, the third threshold value is less than the second threshold value, and the third threshold value can be set according to actual needs, which is not limited here. It is equivalent to that the first NTN device selects the NTN device with a closer distance to the terminal and greater interference to the terminal from the 'NTN device adjacent to the first NTN device' as the fifth NTN device, and sends the seventh information to the fifth NTN device to request the fifth NTN device to perform interference avoidance. Therefore, in a possible implementation, the at least one fifth NTN device can be regarded as the NTN device for interference avoidance. It can also be described that the at least one fifth NTN device is the NTN device adjacent to the first NTN device. Or, the at least one fifth NTN device belongs to the at least one third NTN device.

[0173] Optionally, the eighth information can also be used to indicate the hop beam periods in the second set of hop beam periods in which the interference avoidance is not performed. Wherein, the manner that the eighth information indicates the hop beam periods in the second set of hop beam periods in which the interference avoidance is not performed can refer to the manner that the second information indicates the hop beam periods in the first set of hop beam periods in which the interference avoidance is performed, which is not described herein. Optionally, the process that the eighth information is transmitted to the at least one fifth NTN device can refer to the existing scheme, such as the scheme in the existing version of the communication standard. Or, the scheme in the future communication standard. For example, in the case that the first NTN device and the at least one fifth NTN device are both satellites, the eighth information can be transmitted by the first NTN device through the inter-satellite link between the first NTN device and each of the at least one fifth NTN device. Or, the first NTN device and the at least one fifth NTN device are used to transparently transmit the information and / or signaling of the same ground base station, and the eighth information can be forwarded by the first NTN device to the at least one fifth NTN device through the ground base station.

[0174] 605、The fifth NTN device cancels the interference avoidance based on the eighth information.

[0175] As an example, in the case that the eighth information does not indicate the hop beam periods in the second set of hop beam periods in which the interference avoidance is not performed, the fifth NTN device can cancel the interference avoidance for the closed beam based on the eighth information. For example, the fifth NTN device can cancel the interference avoidance for the closed beam in all the hop beam periods in the second set of hop beam periods. As another example, in the case that the eighth information indicates the hop beam periods in the second set of hop beam periods in which the interference avoidance is not performed, the fifth NTN device can cancel the interference avoidance for the closed beam based on the hop beam periods in the second set of hop beam periods in which the interference avoidance is not performed. For ease of description, the cancellation of the interference avoidance is introduced by taking the closed third beam in a certain hop beam period in the second set of hop beam periods in which the interference avoidance is not performed (such as the second hop beam period) as an example, which should not be regarded as a limitation to the present application. For example, the fifth NTN device can open the third beam. That is, the fifth NTN device transmits the third beam.

[0176] It can be seen that in the above embodiments, the terminal can perform interference measurement based on the second set of hop beam periods to obtain a third measurement result, so that the terminal can request the first NTN device to cancel the interference avoidance based on the third measurement result, such as indicating the position information of the terminal and / or the hop beam periods in the second set of hop beam periods in which the interference avoidance is not performed. In this way, the first NTN device can determine which NTN device should be indicated to cancel the interference avoidance in combination with the position information of the terminal. The NTN device that is indicated to cancel the interference avoidance can open the beam, that is, transmit the beam, so as to ensure that the data transmission is not affected.

[0177] It can be understood that, to achieve the above functions, the above device comprises the hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in the present text, the present application can be realized in the form of hardware or the combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0178] The embodiments of the present application can divide the functional modules of the terminal or network device (such as the NTN device) according to the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated in one processing module. The above integrated module can be realized in the form of hardware or 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 functional division. Actual implementation can have another division method.

[0179] Referring to FIG. 7, FIG. 7 is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application. The communication apparatus 700 can be applied to the method shown in the embodiments of FIG. 4 or FIG. 6. As shown in FIG. 7, the communication apparatus 700 comprises a processing module 701 and a transceiver module 702. The processing module 701 can be one or more processors, and the transceiver module 702 can be a transceiver or a communication interface. The communication apparatus can be used to realize the functions of the terminal or network device (such as the NTN device) involved in any of the above method embodiments, or to realize the functions of the network element involved in any of the above method embodiments. The network element or network function can be a network element in a hardware device, a software function running on a special hardware, or a virtualized function instantiated on a platform (for example, a cloud platform). Optionally, the communication apparatus 700 can further comprise a storage module 703 for storing the program code and data of the communication apparatus 700.

[0180] An example is that the communication apparatus serves as a terminal or a chip applied to a terminal, that is, a chip for a terminal, and executes the steps performed by the terminal in the above method embodiments. The transceiver module 702 is used to specifically perform the sending and / or receiving actions performed by the terminal in the embodiments of FIG. 4 or FIG. 6, for example, to support the terminal to perform other processes of the technologies described in the present text. The processing module 701 can be used to support the communication apparatus 700 to perform the processing actions in the above method embodiments, for example, to support the terminal to perform other processes of the technologies described in the present text.

[0181] The transceiver module 702 is configured to receive first information from the first NTN device, the first information comprising a first set of hop beam periods, the first set of hop beam periods comprising at least one hop beam period for interference measurement; the processing module 701 is configured to perform interference measurement based on the first set of hop beam periods to obtain first measurement results; the transceiver module 702 is further configured to send second information to the first NTN device based on the first measurement results, the second information being used for interference avoidance, the second information comprising at least one of the following: position information of the terminal, and a hop beam period in the first set of hop beam periods for interference avoidance.

[0182] In a possible implementation, when the first measurement results are obtained based on the first set of hop beam periods, the processing module 701 is configured to: receive third information from the first NTN device through the transceiver module 702, the third information comprising first reference signal resources for interference measurement; and perform interference measurement based on the first set of hop beam periods and the first reference signal resources to obtain the first measurement results.

[0183] In a possible implementation, when the second information is sent to the first NTN device based on the first measurement results, the processing module 701 is configured to determine, based on the first measurement results, a number of hop beam periods in the first set of hop beam periods for interference avoidance; and the transceiver module 702 is configured to send the second information to the first NTN device when a first condition is met. The first condition comprises that the number of hop beam periods in the first set of hop beam periods for interference avoidance is greater than a first threshold.

[0184] In a possible implementation, the first reference signal resources are NZP CSI-RS resources, the first measurement results comprise signal power values of the first NTN device in each hop beam period in the first set of hop beam periods, and the processing module 701 is further configured to determine, based on the first measurement results, second measurement results, the second measurement results comprising interference information of at least one second NTN device in each hop beam period in the first set of hop beam periods, the at least one second NTN device being an NTN device adjacent to the first NTN device. When the number of hop beam periods in the first set of hop beam periods for interference avoidance is determined based on the first measurement results, the processing module 701 is configured to determine, based on the first measurement results and the second measurement results, the number of hop beam periods in the first set of hop beam periods for interference avoidance.

[0185] In a possible implementation, the transceiver 702 is further configured to receive fourth information from the first NTN device, the fourth information comprising a second set of hop beam periods, the second set of hop beam periods comprising at least one hop beam period for interference measurement, and the at least one hop beam period in the second set of hop beam periods belonging to the first set of hop beam periods; and the processor 701 is further configured to perform interference measurement based on the second set of hop beam periods to obtain a third measurement result, and the transceiver 702 is further configured to send fifth information to the first NTN device based on the third measurement result, the fifth information being used for canceling interference avoidance, and the fifth information comprising location information of the terminal.

[0186] In a possible implementation, when the third measurement result is obtained based on the second set of hop beam periods, the processor 701 is configured to receive, by the transceiver 702, sixth information from the first NTN device, the sixth information comprising a second reference signal resource for interference measurement; and perform interference measurement based on the second set of hop beam periods and the second reference signal resource to obtain the third measurement result.

[0187] In a possible implementation, when the fifth information is sent to the first NTN device based on the third measurement result, the processor 701 is configured to determine, based on the third measurement result, a number of hop beam periods in the second set of hop beam periods in which interference avoidance is not performed; and the transceiver 702 is configured to send the fifth information to the first NTN device in a case where a third condition is met. The third condition comprises that the number of hop beam periods in the second set of hop beam periods in which interference avoidance is not performed is greater than a sixth threshold value.

[0188] In a possible implementation, the second reference signal resource is an NZP CSI-RS resource, and the third measurement result comprises a signal power value of the first NTN device in each hop beam period in the second set of hop beam periods. The processor 701 is further configured to determine, based on the third measurement result, a fourth measurement result comprising interference information of at least one third NTN device in each hop beam period in the second set of hop beam periods, the at least one third NTN device being an NTN device adjacent to the first NTN device. When the number of hop beam periods in the second set of hop beam periods in which interference avoidance is not performed is determined based on the third measurement result, the processor 701 is configured to determine, based on the third measurement result and the fourth measurement result, the number of hop beam periods in the second set of hop beam periods in which interference avoidance is not performed.

[0189] In an example, the communication apparatus is configured to operate as a network device (e.g., an NTN device) or as a chip for use in a network device (e.g., an NTN device), i.e., a chip for use in a network device (e.g., an NTN device), and perform the steps recited in the above method embodiments performed by a network device (e.g., an NTN device). The transceiver module 702 can be configured to perform the transmitting and / or receiving actions recited in the embodiments of FIG. 4 or FIG. 6 by a network device (e.g., an NTN device), e.g., to support the network device (e.g., an NTN device) in performing other processes that support the techniques described herein. The processing module 701 can be configured to support the communication apparatus 700 in performing the processing actions recited in the above method embodiments, e.g., to support the network device (e.g., an NTN device) in performing other processes that support the techniques described herein.

[0190] In an example, the transceiver module 702 is configured to: transmit, to the terminal, first information, the first information comprising a first set of hop beam periods, the first set of hop beam periods comprising at least one hop beam period for interference measurement; receive, from the terminal, second information, the second information being used for interference avoidance, the second information comprising at least one of: location information of the terminal, a hop beam period in the first set of hop beam periods for interference avoidance; transmit, to at least one fourth NTN device, seventh information based on the location information of the terminal, the at least one fourth NTN device being a neighboring NTN device of the first NTN device, the seventh information comprising at least one of: the location information of the terminal, the hop beam period in the first set of hop beam periods for interference avoidance.

[0191] In a possible implementation, the transceiver module 702 is further configured to: transmit, to the terminal, fourth information, the fourth information comprising a second set of hop beam periods, the second set of hop beam periods comprising at least one hop beam period for interference measurement, the at least one hop beam period in the second set of hop beam periods belonging to the first set of hop beam periods; receive, from the terminal, fifth information, the fifth information being used for interference avoidance cancellation, the fifth information comprising location information of the terminal; transmit, to at least one fifth NTN device, eighth information based on the location information of the terminal, the at least one fifth NTN device being a neighboring NTN device of the first NTN device, the eighth information being used for interference avoidance cancellation.

[0192] In a possible implementation, the transceiver module 702 is further configured to transmit, to the terminal, sixth information, the sixth information comprising a second reference signal resource for interference measurement.

[0193] In an example, the transceiver module 702 is further configured to receive, from the first NTN device, seventh information, the seventh information comprising at least one of: location information of the terminal, a hop beam period in the first set of hop beam periods for interference avoidance; and the processing module 701 is further configured to perform interference avoidance based on the seventh information.

[0194] In a possible implementation, when performing interference avoidance based on the seventh information, the processing module 701 is configured to: determine a first beam that has been turned on based on a hop beam period in the first set of hop beam periods during which interference avoidance is performed; and turn off the first beam based on a spatial isolation degree between the first beam and a second beam. The second beam is a beam determined based on the position information of the terminal.

[0195] In a possible implementation, the transceiver module 702 is further configured to receive eighth information from the first NTN device, the eighth information being used to cancel interference avoidance; and the processing module 701 is further configured to cancel interference avoidance based on the eighth information.

[0196] In a possible implementation, the eighth information further includes a hop beam period in a second set of hop beam periods during which interference avoidance is not performed, and when cancelling interference avoidance based on the eighth information, the processing module 701 is configured to determine a third beam that has been turned off based on the hop beam period in the second set of hop beam periods during which interference avoidance is not performed, and turn on the third beam.

[0197] In a possible implementation, when the apparatus is a chip, the transceiver module 702 can be a communication interface, a pin, or a circuit, etc. The communication interface can be configured to input data to be processed to the processor, and output the processing result of the processor to the outside. In specific implementation, the communication interface can be a general purpose input output (GPIO) interface, and can be connected with a plurality of peripheral devices (such as a display (LCD), a camera, a radio frequency (RF) module, an antenna, etc.). The communication interface is connected with the processor through a bus.

[0198] The processing module 701 can be a processing circuit, which can be one or more processors, or all or part of circuitry in the one or more processors for control and / or processing. The processing circuit or the processor can execute computer-executed instructions stored in the storage module to enable the chip to perform the methods related to the embodiments shown in FIG. 4 or FIG. 6. Further, the processor can include a controller, an arithmetic unit, and a register. For example, the controller is mainly responsible for instruction decoding and sending control signals for corresponding operations of instructions. The arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logic operations, etc., and can also perform address operations and conversion. The register is mainly responsible for saving the register operands and intermediate operation results temporarily stored in the process of instruction execution, etc. In a specific implementation, the hardware architecture of the processor can be an application-specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced RISC machines (ARM) architecture, or a network processor (NP) architecture, etc. The processor can be single-core or multi-core. The storage module can be a storage module within the chip, such as a register, a cache, etc. The storage module can also be a storage module located outside the chip, such as a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

[0199] It should be noted that the functions of the processor and the interface corresponding to each other can be implemented by hardware design, software design, or a combination of software and hardware, which is not limited here.

[0200] Fig. 8 is a structural schematic diagram of another communication apparatus provided in an embodiment of the present application. It can be understood that the communication apparatus 810 includes necessary means such as modules, units, elements, circuits, or interfaces, etc., which are configured together to perform the present solution. The communication apparatus 810 can be the terminal or the network device (such as the NTN device) described above, or a component (such as a chip) of the terminal or the network device, to implement the methods described in the above method embodiments. The communication apparatus 810 includes one or more processors 811. The processor 811 can be a general purpose processor or a special purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication apparatus (such as a terminal, a network device (such as an NTN device), or a chip, etc.), execute software programs, and process data of the software programs.

[0201] Optionally, in one design, the processor 811 can include a program 813 (which can also be referred to as code or instructions at times) that can be run on the processor 811, so that the communication apparatus 810 performs the methods described in the above embodiments. In another possible design, the communication apparatus 810 includes a circuit (not shown in Fig. 8) for implementing the functions of the terminal, the network device (such as the NTN device), etc. in the above embodiments. Optionally, the communication apparatus 810 can include one or more memories 812 having a program 814 (which can also be referred to as code or instructions at times) stored thereon, and the program 814 can be run on the memory 812, so that the communication apparatus 810 performs the methods described in the above method embodiments.

[0202] Optionally, the processor 811 and / or the memory 812 can also store data. The processor and the memory can be separately arranged, or integrated together.

[0203] Optionally, the communication apparatus 810, when being a terminal or a network device (such as an NTN device), can further include a transceiver 815 and / or an antenna 816. The processor 811 can also be referred to as a processing unit, and is used to control the communication apparatus (such as a terminal or a network device (such as an NTN device)). The transceiver 815 can also be referred to as a transceiving unit, a transceiver, a transceiving circuit, or a transceiver, etc., and is used to realize the transceiving function of the communication apparatus through the antenna 816.

[0204] Optionally, the communication apparatus 810, when being a chip for a terminal or a network device (such as an NTN device), can further include a transceiving circuit, such as an input / output interface, or a transceiving interface.

[0205] The embodiment of the present application further provides a communication device, comprising at least one processor; wherein the at least one processor is configured to execute the method described in any one of the embodiments shown in FIG. 4 or FIG. 6.

[0206] The embodiment of the present application further provides a computer readable storage medium, which stores computer instructions, and when the computer instructions are executed, the computer executes the method described in any one of the embodiments shown in FIG. 4 or FIG. 6.

[0207] The embodiment of the present application further provides a computer program product, which comprises computer program codes, and when the computer program codes are run by a computer, the computer executes the method described in any one of the embodiments shown in FIG. 4 or FIG. 6.

[0208] The embodiment of the present application further provides a chip, which comprises at least one processor and an interface, and the processor is used to read and execute instructions stored in a memory, and when the instructions are run, the chip executes the method described in any one of the embodiments shown in FIG. 4 or FIG. 6.

[0209] Optionally, the processing performed by a single execution subject (terminal or network device) shown in any of the above embodiments can also be divided into processing performed by multiple execution subjects, which can be logically and / or physically separated. For example, the processing performed by the network device can be divided into processing performed by at least one of the CU, the DU and the RU.

[0210] In addition, each embodiment of the present application is only described by taking all the steps included in the embodiment as an example, and should not be regarded as a specific limitation of the present application. For example, the order between the steps in each embodiment can be simply changed according to the function and the inherent logic; for another example, the steps in each embodiment can be executed in whole or in part, as long as the same function as in the embodiments of the present application can be achieved.

[0211] In the present application, “sending” and “receiving” represent the direction of signal transmission. For example, “sending information to a network device” can be understood as that the destination of the information is the network device, which can include direct transmission through the air interface, and also includes indirect transmission through the air interface by other units or modules. “Receiving information from a network device” can be understood as that the source of the information is the network device, which can include direct reception from the network device through the air interface, and also includes indirect reception from the network device through the air interface from other units or modules. “Sending” can also be understood as the “output” of the chip interface, and “receiving” can also be understood as the “input” of the chip interface.

[0212] In other words, the sending and receiving can be between devices, such as between a network device and a terminal, or can be within a device, such as between components, modules, chips, software modules or hardware modules within a device via a bus, wire or interface.

[0213] In the embodiments of the present application, "when", "if", "whether" and "in the case of" all refer to the case that the device will make corresponding processing under certain objective condition, and are not limited to time, and do not require the device to have a judgment action when implemented, nor mean that there are other limitations.

[0214] In the present application, the words "example", "exemplary", "for example", or "e.g." are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "example", "exemplary", "for example", or "e.g." should not be construed as preferred or advantageous over other embodiments or designs. Rather, use of "example", "exemplary", "for example", or "e.g." is intended to present concepts in a concrete manner.

[0215] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, include: Receive first information from a first non-terrestrial network device, the first information including a first hop beam period set, the first hop beam period set including at least one hop beam period for interference measurement; The first measurement result is obtained by performing interference measurement based on the first hop beam period set; Based on the first measurement result, a second message is sent to the first non-terrestrial network device. The second message is used for interference avoidance. The second message includes at least one of the following: the location information of the terminal, and the hopping beam period for interference avoidance in the first hopping beam period set.

2. The method according to claim 1, wherein obtaining the first measurement result by performing interference measurement based on the first hopping beam period set includes: Receive third information from the first non-terrestrial network device, the third information including a first reference signal resource for interference measurement; The first measurement result is obtained by performing interference measurement based on the first hop beam period set and the first reference signal resource.

3. The method according to claim 1 or 2, characterized in that, The step of sending the second information to the first non-terrestrial network device based on the first measurement result includes: Based on the first measurement results, determine the number of hop beam cycles for interference avoidance in the first hop beam cycle set; If the first condition is met, the second information is sent to the first non-terrestrial network device; The first condition includes the number of hopping beam cycles used for interference avoidance in the first hopping beam cycle set being greater than a first threshold.

4. The method according to any one of claims 1-3, characterized in that, The hopping beam period for interference avoidance in the first hopping beam period set satisfies the second condition, which includes at least one of the following: the signal power value of the first non-terrestrial network device is greater than the second threshold, the interference superposition power value of at least one second non-terrestrial network device is greater than the third threshold, the ratio of the interference superposition power value to the noise power value of the at least one second non-terrestrial network device is greater than the fourth threshold, and the ratio of the signal power value of the first non-terrestrial network device to the interference superposition power value of the at least one second non-terrestrial network device is less than the fifth threshold. Wherein, the at least one second non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device.

5. The method according to any one of claims 1-4, characterized in that, The first reference signal resource is a non-zero power channel state information reference signal (NZP CSI-RS) resource. The first measurement result includes the signal power value of the first non-terrestrial network device in each hop beam period of the first hop beam period set. The method further includes: Based on the first measurement result, a second measurement result is determined. The second measurement result includes interference information of at least one second non-terrestrial network device in each hop beam period of the first hop beam period set. The at least one second non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device. Determining the number of hop beam cycles for interference avoidance in the first hop beam cycle set based on the first measurement result includes: Based on the first measurement result and the second measurement result, determine the number of hop beam cycles for interference avoidance in the first hop beam cycle set.

6. The method according to any one of claims 1-4, characterized in that, The first reference signal resource includes NZP CSI-RS resource and zero-power channel state information reference signal ZP CSI-RS resource. The first measurement result includes the signal power value of the first non-terrestrial network device in each hop beam period of the first hop beam period set and the interference information of at least one second non-terrestrial network device in each hop beam period of the first hop beam period set. The at least one second non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device.

7. The method according to claim 5 or 6, characterized in that, The interference information of the at least one second non-terrestrial network device in each hop beam period of the first hop beam period set includes at least one of the following: the interference superposition power value of the at least one second non-terrestrial network device, the ratio of the interference superposition power value to the noise power value of the at least one second non-terrestrial network device, and the ratio of the signal power value of the first non-terrestrial network device to the interference superposition power value of the at least one second non-terrestrial network device.

8. The method according to any one of claims 1-7, characterized in that, The second information is also used to indicate the non-terrestrial network device that is the most disruptive among the non-terrestrial network devices adjacent to the first non-terrestrial network device.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: The system receives fourth information from the first non-terrestrial network device, the fourth information including a second hop beam period set, the second hop beam period set including at least one hop beam period for interference measurement, and at least one hop beam period in the second hop beam period set belonging to the first hop beam period set. The third measurement result is obtained by performing interference measurement based on the second hop beam period set; Based on the third measurement result, a fifth message is sent to the first non-terrestrial network device. The fifth message is used to cancel interference avoidance and includes the location information of the terminal.

10. The method according to claim 9, characterized in that, The third measurement result obtained by performing interference measurement based on the second hopping beam period set includes: Receive sixth information from the first non-terrestrial network device, the sixth information including a second reference signal resource for interference measurement; The third measurement result is obtained by performing interference measurement based on the second hop beam period set and the second reference signal resource.

11. The method according to claim 9 or 10, characterized in that, The step of sending the fifth information to the first non-terrestrial network device based on the third measurement result includes: Based on the third measurement result, determine the number of hop beam cycles in the second hop beam cycle set that do not perform interference avoidance; If the third condition is met, the fifth information is sent to the first non-terrestrial network device; The third condition includes the number of hop beam cycles in the second hop beam cycle set that do not perform interference avoidance being greater than the sixth threshold.

12. The method according to any one of claims 9-11, characterized in that, The hopping beam periods in the second hopping beam period set that do not perform interference avoidance satisfy the fourth condition, which includes at least one of the following: the signal power value of the first non-terrestrial network device is less than the seventh threshold, the interference superposition power value of at least one third non-terrestrial network device is less than the eighth threshold, the ratio of the interference superposition power value to the noise power value of the at least one third non-terrestrial network device is less than the ninth threshold, and the ratio of the signal power value of the first non-terrestrial network device to the interference superposition power value of the at least one third non-terrestrial network device is greater than the tenth threshold. Wherein, the at least one third non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device.

13. The method according to any one of claims 9-12, characterized in that, The second reference signal resource is a non-zero power channel state information reference signal (NZP CSI-RS) resource. The third measurement result includes the signal power value of the first non-terrestrial network device in each hop beam period of the second hop beam period set. The method further includes: Based on the third measurement result, a fourth measurement result is determined. The fourth measurement result includes interference information of at least one third non-terrestrial network device in each hop beam period of the second hop beam period set. The at least one third non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device. Determining the number of hop beam periods in the second hop beam period set that do not undergo interference avoidance based on the third measurement result includes: Based on the third and fourth measurement results, determine the number of hop beam cycles in the second hop beam cycle set that do not perform interference avoidance.

14. The method according to any one of claims 9-12, characterized in that, The second reference signal resource includes NZP CSI-RS resource and zero-power channel state information reference signal ZP CSI-RS resource. The third measurement result includes the signal power value of the first non-terrestrial network device in each hop beam period of the second hop beam period set and the interference information of at least one third non-terrestrial network device in each hop beam period of the second hop beam period set. The at least one third non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device.

15. The method according to claim 13 or 14, characterized in that, The interference information of at least one third non-terrestrial network device in each hop beam period of the second hop beam period set includes at least one of the following: the interference superposition power value of the at least one third non-terrestrial network device, the ratio of the interference superposition power value to the noise power value of the at least one third non-terrestrial network device, and the ratio of the signal power value of the first non-terrestrial network device to the interference superposition power value of the at least one third non-terrestrial network device.

16. The method according to any one of claims 9-15, characterized in that, The fifth piece of information is also used to indicate the hopping beam periods in the second hopping beam period set that do not undergo interference avoidance.

17. A communication method, characterized in that, include: Send first information to the terminal, the first information including a first set of hopping beam cycles, the first set of hopping beam cycles including at least one hopping beam cycle for interference measurement; Receive second information from the terminal, the second information being used for interference avoidance, the second information including at least one of the following: the location information of the terminal, the hopping beam period for interference avoidance in the first hopping beam period set; Based on the location information of the terminal, a seventh message is sent to at least one fourth non-terrestrial network device, wherein the at least one fourth non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device, and the seventh message includes at least one of the following: the location information of the terminal, and the hopping beam period for interference avoidance in the first hopping beam period set.

18. The method according to claim 17, characterized in that, The second information is also used to indicate the non-terrestrial network device with the strongest interference among the non-terrestrial network devices adjacent to the first non-terrestrial network device, and the at least one fourth non-terrestrial network device includes the non-terrestrial network device with the strongest interference among the non-terrestrial network devices adjacent to the first non-terrestrial network device.

19. The method according to claim 17 or 18, characterized in that, The method further includes: Send fourth information to the terminal, the fourth information including a second hop beam period set, the second hop beam period set including at least one hop beam period for interference measurement, and at least one hop beam period in the second hop beam period set belonging to the first hop beam period set; The terminal receives fifth information, which is used to cancel interference avoidance, and the fifth information includes the location information of the terminal. Based on the location information of the terminal, an eighth message is sent to at least one fifth non-terrestrial network device, wherein the at least one fifth non-terrestrial network device is a non-terrestrial network device adjacent to the first non-terrestrial network device, and the eighth message is used to cancel interference avoidance.

20. The method according to claim 19, characterized in that, The method further includes: A sixth message is sent to the terminal, the sixth message including a second reference signal resource for interference measurement.

21. The method according to claim 19, characterized in that, The fifth information is also used to indicate the hopping beam periods in the second hopping beam period set that do not perform interference avoidance, and the eighth information is also used to indicate the hopping beam periods in the second hopping beam period set that do not perform interference avoidance.

22. A communication method, characterized in that, include: Receive seventh information from the first non-terrestrial network device, the seventh information including at least one of the following: the terminal's location information, and the hopping beam period for interference avoidance in the first hopping beam period set; Interference avoidance is based on the seventh piece of information.

23. The method according to claim 22, characterized in that, The interference avoidance based on the seventh information includes: Based on the hopping beam period for interference avoidance in the first hopping beam period set, determine the first activated beam. Based on the spatial isolation between the first beam and the second beam, the first beam is turned off; The second beam is determined based on the location information of the terminal.

24. The method according to claim 22 or 23, characterized in that, The method further includes: Receive eighth information from the first non-terrestrial network device, the eighth information being used to cancel interference avoidance; Interference avoidance is canceled based on the eighth piece of information.

25. The method according to claim 24, characterized in that, The eighth information also includes hop beam periods in the second hop beam period set that are not subject to interference avoidance. The step of canceling interference avoidance based on the eighth information includes: Based on the hopping beam periods in the second hopping beam period set that do not involve interference avoidance, the third beam that has been turned off is determined. Activate the third beam.

26. A communication device, characterized in that, Includes units or modules for implementing the method as described in any one of claims 1 to 25.

27. A communication device, characterized in that, The communication device includes at least one processor; wherein the at least one processor is configured to perform the method of any one of claims 1 to 25.

28. A computer program product, characterized in that, The computer program product includes: computer program code, which, when executed by a computer, causes the computer to perform the method as described in any one of claims 1-25.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed, cause the computer to perform the method as described in any one of claims 1-25.

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