Frequency spectrum resource determination method, apparatus, and system, and storage medium

Abstract

A frequency spectrum resource determination method, apparatus, and system, and a storage medium. A server configures at least one of a first frequency spectrum resource, a second frequency spectrum resource corresponding to a first network in the first frequency spectrum resource, a third frequency spectrum resource corresponding to a second network in the first frequency spectrum resource, a frequency spectrum boundary between the second frequency spectrum resource and the third frequency spectrum resource, a minimum Doppler shift, and a maximum Doppler shift. The second network can accurately determine, on the basis of the configuration, a frequency spectrum boundary corresponding to the second network, so that configuration of spaced frequency bands is achieved, and frequency spectrum overlapping caused by the Doppler shift can be avoided, thereby avoiding interference between the first network and the second network.

Description

Spectrum resource determination method, device, system and storage medium

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on September 28, 2023, with application number 202311283570.1 and invention name “Spectrum Resource Determination Method, Device, System and Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a spectrum resource determination method, device, system, and storage medium. Background Art

[0003] With the rapid development of low-Earth orbit (LEO) satellite communications, spectrum resources are rapidly being occupied and becoming increasingly scarce. To expand bandwidth, LEO satellite communications are exploring the possibility of co-construction and sharing of spectrum resources in international mobile telecommunications (IMT) or geostationary Earth orbit (GEO). Spectrum co-construction and sharing can improve resource utilization and reduce construction costs, but it also requires addressing co-channel and adjacent-channel interference between non-terrestrial networks (NTNs) (also known as satellite networks) and terrestrial networks (TNs).

[0004] The existing Long Term Evolution (LTE) and New Radio (NR) can use the Long Term Evolution-New Radio (LTE-NR, LNR) mechanism to achieve spectrum sharing between LTE and NR. However, LNR requires that the LTE cells and NR cells participating in spectrum sharing meet the requirements of complete alignment of radio frames and subframes. If the subframes are not aligned, there will be spectrum overlap and mutual interference. However, for satellite-to-ground scenarios, it is very difficult for satellites to achieve and maintain frame-level synchronization with a large number of ground base stations. Therefore, the LNR mechanism is not suitable for satellite-to-ground spectrum sharing scenarios.

[0005] In addition, the current satellite-ground dynamic spectrum sharing scheme does not provide details to prevent mutual interference between TN and NTN.

[0006] Summary of the Invention

[0007] The present application provides a spectrum resource determination method, apparatus, system, and storage medium to implement the configuration of interval frequency bands when a first network and a second network share spectrum resources, thereby avoiding interference between the first network and the second network.

[0008] In a first aspect, a method for determining spectrum resources is provided, where the method is implemented by a second network or a chip or circuit for the second network.

[0009] The method includes: receiving first configuration information, the first configuration information including at least one of the following: a first spectrum resource, a second spectrum resource corresponding to a first network in the first spectrum resource, a third spectrum resource corresponding to a second network in the first spectrum resource, a spectrum boundary between the second spectrum resource and the third spectrum resource, a minimum Doppler shift, and a maximum Doppler shift; and determining the spectrum boundary corresponding to the second network, wherein if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift; or if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency of the second network is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift. Using this method, the second network can accurately determine the spectrum boundary corresponding to the second network based on the configuration, thereby achieving the configuration of the interval frequency band, avoiding spectrum overlap caused by Doppler shift, and thereby avoiding interference between the first network and the second network.

[0010] In one possible implementation, a guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift. This implementation enables configuration of the guard band, avoids spectrum overlap caused by Doppler shift, and thereby prevents interference between the first network and the second network.

[0011] In another possible implementation, the method further includes: if the third spectrum resource becomes greater than the fourth spectrum resource configured for the second network by the second configuration information, receiving first indication information, the first indication information being used to instruct the second network to use the third spectrum resource for communication after a first time, where the first time is the sum of the second time and a first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network; or if the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, receiving second indication information, the second indication information being used to instruct the second network to use the fifth spectrum resource for communication before a third time, where the third time is the sum of the second time and a second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network; wherein the second time is the effective time of the first configuration information. With this implementation, in a scenario where the first and second networks share spectrum resources, the configuration of the time interval for the second network to use the new spectrum resource is clarified. This configuration can avoid interference between the first and second networks.

[0012] In another possible implementation, the first network is a terrestrial network and the second network is a satellite network; or the first network is a satellite network and the second network is a terrestrial network; the maximum propagation delay from the first network to the second network is associated with the maximum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light; the minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light.

[0013] In another possible implementation, the maximum Doppler shift and the minimum Doppler shift are associated with a carrier frequency, a moving speed of the satellite, a speed of light, a geocentric angle, a radius of the earth, and an orbital altitude of the satellite.

[0014] In a second aspect, a method for determining spectrum resources is provided, which is implemented by a server or a chip or circuit for a server.

[0015] The method includes: sending first configuration information, wherein the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, a spectrum boundary between the second spectrum resource and the third spectrum resource, a minimum Doppler shift, and a maximum Doppler shift. Using this method, the server configures at least one of the first spectrum resource, the second spectrum resource corresponding to the first network in the first spectrum resource, the third spectrum resource corresponding to the second network in the first spectrum resource, the spectrum boundary between the second spectrum resource and the third spectrum resource, the minimum Doppler shift, and the maximum Doppler shift, so that the second network can accurately determine the spectrum boundary corresponding to the second network based on the configuration, thereby realizing the configuration of the interval frequency band, avoiding spectrum overlap caused by Doppler shift, and thus avoiding interference between the first network and the second network.

[0016] In one possible implementation, a guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift. This implementation enables configuration of the guard band, avoids spectrum overlap caused by Doppler shift, and thereby prevents interference between the first network and the second network.

[0017] In another possible implementation, the method further includes: if the third spectrum resource becomes greater than the fourth spectrum resource configured for the second network by the second configuration information, sending first indication information, the first indication information being used to instruct the second network to use the third spectrum resource for communication after a first time, where the first time is the sum of the second time and the first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network; or if the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, sending second indication information, the second indication information being used to instruct the second network to use the fifth spectrum resource for communication before a third time, where the third time is the sum of the second time and the second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network; wherein the second time is the effective time of the first configuration information. With this implementation, in a scenario where the first network and the second network share spectrum resources, the configuration of the time interval for the second network to use the new spectrum resource is clarified. This configuration can avoid interference between the first network and the second network.

[0018] In another possible implementation, the first network is a terrestrial network and the second network is a satellite network; or the first network is a satellite network and the second network is a terrestrial network; the maximum propagation delay from the first network to the second network is associated with the maximum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light; the minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light.

[0019] In another possible implementation, the maximum Doppler shift and the minimum Doppler shift are associated with a carrier frequency, a moving speed of the satellite, a speed of light, a geocentric angle, a radius of the earth, and an orbital altitude of the satellite.

[0020] According to a third aspect, a method for determining spectrum resources is provided, which is implemented by the second network or a chip or circuit used for the second network.

[0021] The method includes: receiving first configuration information, the first configuration information including at least one of the following: a first spectrum resource, a second spectrum resource corresponding to a first network in the first spectrum resource, a third spectrum resource corresponding to a second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource; obtaining location information of the first network and location information of a second network device in the second network; determining, based on the location information of the first network and the location information of the second network device, the minimum Doppler shift and the maximum Doppler shift corresponding to the second network device, respectively; and determining the spectrum boundary corresponding to the second network device, wherein if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network device is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift corresponding to the second network device; or if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency corresponding to the second network device is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift corresponding to the second network device. Using this method, in a scenario where the first network and the second network share spectrum resources, time intervals and interval frequency bands are configured at the cell level, thereby improving resource utilization.

[0022] In one possible implementation, the first network includes at least one first network device, the maximum Doppler shift is the maximum value of at least one maximum Doppler shift of the at least one first network device relative to the second network device; and the minimum Doppler shift is the minimum value of at least one minimum Doppler shift of the at least one first network device relative to the second network device.

[0023] In another possible implementation, the method further includes: determining the maximum propagation delay from the first network to the second network device and the minimum propagation delay from the first network to the second network device based on the location information of the first network and the location information of the second network device; if the third spectrum resources become more than the fourth spectrum resources configured for the second network by the second configuration information, receiving first indication information, the first indication information being used to instruct the second network device to use the third spectrum resources for communication after a first time, the first time being the sum of the second time and the first time interval, the first time interval being greater than or equal to the maximum propagation delay from the first network to the second network device; or if the third spectrum resources become less than the fifth spectrum resources configured for the second network by the third configuration information, receiving second indication information, the second indication information being used to instruct the second network device to use the fifth spectrum resources for communication before a third time, the third time being the sum of the second time and the second time interval, the second time interval being less than or equal to the minimum propagation delay from the first network to the second network device; wherein the second time is the effective time of the first configuration information.

[0024] In another possible implementation, the first network includes at least one first network device, and the maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device; the minimum propagation delay from the first network to the second network device is the minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

[0025] In a fourth aspect, a method for determining spectrum resources is provided, which is implemented by a server or a chip or circuit used for the server.

[0026] The method includes: sending first configuration information, the first configuration information including at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource; if the third spectrum resource becomes more than the fourth spectrum resource configured for the second network by the second configuration information, sending first indication information, the first indication information being used to instruct a second network device in the second network to use the third spectrum resource for communication after a first time, the first time being the sum of the second time and the first time interval, the first time interval being greater than or equal to the maximum propagation delay from the first network to the second network device; or if the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, sending second indication information, the second indication information being used to instruct the second network device to use the fifth spectrum resource for communication before a third time, the third time being the sum of the second time and the second time interval, the second time interval being less than or equal to the minimum propagation delay from the first network to the second network device; wherein the second time is the effective time of the first configuration information. By adopting this method, in a scenario where a first network and a second network share spectrum resources, time intervals and interval frequency bands are configured at the cell level, thereby improving resource utilization.

[0027] In one possible implementation, the first network includes at least one first network device, the maximum Doppler shift is the maximum value of at least one maximum Doppler shift of the at least one first network device relative to the second network device; and the minimum Doppler shift is the minimum value of at least one minimum Doppler shift of the at least one first network device relative to the second network device.

[0028] In another possible implementation, the first network includes at least one first network device, and the maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device; the minimum propagation delay from the first network to the second network device is the minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

[0029] In a fifth aspect, a spectrum resource determination device is provided for implementing the spectrum resource determination method in the above-mentioned first aspect, third aspect, or any one of the implementations of the first aspect and the third aspect. The device can be a second network, or a module applied to the second network (such as a processor, chip, or chip system, etc.), or a logical node, logical module, or software that can implement all or part of the second network functions. In one implementation, the spectrum resource determination device may include a sending unit, a receiving unit, and may also include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiver unit").

[0030] In a sixth aspect, a spectrum resource determination device is provided for implementing the spectrum resource determination method in the second aspect, the fourth aspect, or any one of the implementations of the second and fourth aspects. The device can be a server, or a module applied to a server (such as a processor, a chip, or a chip system, etc.), or a logical node, a logical module, or software that can implement all or part of the server functions. In one implementation, the spectrum resource determination device may include a sending unit, a receiving unit, and may also include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiver unit").

[0031] In a possible implementation, the spectrum resource determination device in the fifth to sixth aspects includes a module for respectively executing the method in any aspect or any implementation of the first to fourth aspects.

[0032] Wherein, when the spectrum resource determination device is used to implement the method described in the first aspect or any one of the implementations of the first aspect, the transceiver unit is used to receive first configuration information, and the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, a spectrum boundary between the second spectrum resource and the third spectrum resource, a minimum Doppler shift, and a maximum Doppler shift; and the processing unit is used to determine the spectrum boundary corresponding to the second network, wherein if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift; or if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency of the second network is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift.

[0033] Optionally, a guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift.

[0034] Optionally, the transceiver unit is further used to receive first indication information if the third spectrum resource becomes more than the fourth spectrum resource configured for the second network by the second configuration information, and the first indication information is used to instruct the second network to use the third spectrum resource for communication after a first time, and the first time is the sum of the second time and the first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network; or the transceiver unit is further used to receive second indication information if the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, and the second indication information is used to instruct the second network to use the fifth spectrum resource for communication before a third time, and the third time is the sum of the second time and the second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network; wherein the second time is the effective moment of the first configuration information.

[0035] Optionally, the first network is a terrestrial network and the second network is a satellite network; or the first network is a satellite network and the second network is a terrestrial network; the maximum propagation delay from the first network to the second network is associated with the maximum distance to the satellite within the coverage of the satellite cell and the speed of light; the minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage of the satellite cell and the speed of light.

[0036] Optionally, the maximum Doppler shift and the minimum Doppler shift are associated with the carrier frequency, the moving speed of the satellite, the speed of light, the geocentric angle, the radius of the earth, and the orbital altitude of the satellite.

[0037] In which, when the spectrum resource determination device is used to implement the method described in the second aspect or any one of the implementations of the second aspect, the transceiver unit is used to send first configuration information, and the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, a spectrum boundary between the second spectrum resource and the third spectrum resource, a minimum Doppler shift, and a maximum Doppler shift.

[0038] Optionally, a guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift.

[0039] Optionally, the transceiver unit is further used to send a first indication message if the third spectrum resource becomes more than the fourth spectrum resource configured for the second network by the second configuration information, and the first indication message is used to instruct the second network to use the third spectrum resource for communication after a first time, and the first time is the sum of the second time and the first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network; or the transceiver unit is further used to send a second indication message if the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, and the second indication message is used to instruct the second network to use the fifth spectrum resource for communication before a third time, and the third time is the sum of the second time and the second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network; wherein the second time is the effective moment of the first configuration information.

[0040] Optionally, the first network is a terrestrial network and the second network is a satellite network; or the first network is a satellite network and the second network is a terrestrial network; the maximum propagation delay from the first network to the second network is associated with the maximum distance to the satellite within the coverage of the satellite cell and the speed of light; the minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage of the satellite cell and the speed of light.

[0041] Optionally, the maximum Doppler shift and the minimum Doppler shift are associated with the carrier frequency, the moving speed of the satellite, the speed of light, the geocentric angle, the radius of the earth, and the orbital altitude of the satellite.

[0042] Wherein, when the spectrum resource determination device is used to implement the method described in the third aspect or any one of the implementations of the third aspect, the transceiver unit is used to receive first configuration information, and the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource; the processing unit is used to obtain the location information of the first network and the location information of the second network device in the second network; the processing unit is also used to determine the location information of the second network device according to the location information of the first network and the location information of the second network device. The corresponding minimum Doppler shift and maximum Doppler shift; and the processing unit is also used to determine the spectrum boundary corresponding to the second network device, wherein, if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network device is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource, and the maximum Doppler shift corresponding to the second network device; or if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency corresponding to the second network device is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource, and the minimum Doppler shift corresponding to the second network device.

[0043] Optionally, the first network includes at least one first network device, the maximum Doppler shift is the maximum value of at least one maximum Doppler shift of the at least one first network device relative to the second network device; the minimum Doppler shift is the minimum value of at least one minimum Doppler shift of the at least one first network device relative to the second network device.

[0044] Optionally, the processing unit is further used to determine the maximum propagation delay from the first network to the second network device and the minimum propagation delay from the first network to the second network device based on the location information of the first network and the location information of the second network device; the transceiver unit is further used to receive first indication information if the third spectrum resources become more than the fourth spectrum resources configured for the second network by the second configuration information, the first indication information being used to instruct the second network device to use the third spectrum resources for communication after a first time, the first time being the sum of the second time and the first time interval, the first time interval being greater than or equal to the maximum propagation delay from the first network to the second network device; or the transceiver unit is further used to receive second indication information if the third spectrum resources become less than the fifth spectrum resources configured for the second network by the third configuration information, the second indication information being used to instruct the second network device to use the fifth spectrum resources for communication before a third time, the third time being the sum of the second time and the second time interval, the second time interval being less than or equal to the minimum propagation delay from the first network to the second network device; wherein the second time is the effective time of the first configuration information.

[0045] Optionally, the first network includes at least one first network device, and the maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device; the minimum propagation delay from the first network to the second network device is the minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

[0046] Wherein, when the spectrum resource determination device is used to implement the method described in the fourth aspect or any one of the implementations of the fourth aspect, the transceiver unit is used to send first configuration information, and the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource; the transceiver unit is also used to send a first indication information if the third spectrum resource becomes more than the fourth spectrum resource configured for the second network by the second configuration information, and the first indication information is used to instruct the second network device in the second network to adopt the third spectrum resource after the first time. The first time is the sum of the second time and the first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network device; or the transceiver unit is further used to send a second indication information if the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, and the second indication information is used to instruct the second network device to use the fifth spectrum resource for communication before the third time, and the third time is the sum of the second time and the second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network device; wherein the second time is the effective moment of the first configuration information.

[0047] Optionally, the first network includes at least one first network device, the maximum Doppler shift is the maximum value of at least one maximum Doppler shift of the at least one first network device relative to the second network device; the minimum Doppler shift is the minimum value of at least one minimum Doppler shift of the at least one first network device relative to the second network device.

[0048] Optionally, the first network includes at least one first network device, and the maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device; the minimum propagation delay from the first network to the second network device is the minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

[0049] In another possible implementation, the spectrum resource determination device in the fifth to sixth aspects includes a processor coupled to a memory; the processor is configured to enable the device to perform the corresponding functions in the above-mentioned spectrum resource determination method. The memory is used to couple with the processor, and stores the necessary programs (instructions) and / or data for the device. Optionally, the spectrum resource determination device may further include a communication interface for enabling communication between the device and other network elements. Optionally, the memory may be located inside the spectrum resource determination device or outside the spectrum resource determination device.

[0050] In another possible implementation, the spectrum resource determination device in the fifth to sixth aspects includes a processor and a transceiver, the processor being coupled to the transceiver, and the processor being used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the above method through a logic circuit or execution code instruction. The transceiver may be a transceiver, a transceiver circuit, or an input-output interface, configured to receive signals from other spectrum resource determination devices other than the spectrum resource determination device and transmit them to the processor, or to send signals from the processor to other spectrum resource determination devices other than the spectrum resource determination device. When the spectrum resource determination device is a chip, the transceiver is a transceiver circuit or an input-output interface.

[0051] When the spectrum resource determination device in the fifth and sixth aspects is a chip, the sending unit may be an output unit, such as an output circuit or a communication interface; the receiving unit may be an input unit, such as an input circuit or a communication interface. When the spectrum resource determination device is a terminal, the sending unit may be a transmitter or a transmitter; and the receiving unit may be a receiver or a receiver.

[0052] In a seventh aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed, the methods described in the above aspects are implemented.

[0053] In an eighth aspect, a computer program product comprising instructions is provided. When the instructions are executed on a spectrum resource determination apparatus, the spectrum resource determination apparatus is caused to execute the methods described in the above aspects.

[0054] In a ninth aspect, a spectrum resource determination system is provided. The communication system includes the spectrum resource determination device described in the fifth aspect and the spectrum resource determination device described in the sixth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1 is a simplified schematic diagram of a wireless communication system provided by an embodiment of the present application;

[0056] FIG2A is a schematic diagram of an NTN scenario based on transparent load;

[0057] FIG2B is a schematic diagram of an NTN scenario based on regenerative load;

[0058] FIG3A is a schematic diagram of a low-orbit satellite interfering with a ground terminal device;

[0059] FIG3B is a schematic diagram of ground terminal equipment interfering with a low-orbit satellite;

[0060] Figure 4 is a schematic diagram of instantaneous dynamic spectrum sharing between LTE FDD and NR;

[0061] FIG5 is a schematic diagram of uplink spectrum resource coordination in LNR;

[0062] FIG6 is a schematic diagram showing misalignment of radio frames between an LTE cell and an NR cell;

[0063] Figure 7 is a schematic diagram of satellite-ground spectrum sharing;

[0064] FIG8 is a schematic diagram of a flow chart of a spectrum resource determination method provided in an embodiment of the present application;

[0065] FIG9 is a schematic diagram of the calculation of Doppler shift;

[0066] FIG10A is a schematic diagram of an example of determining spectrum resources;

[0067] FIG10B is a schematic diagram of another example of determining spectrum resources;

[0068] FIG11 is a schematic diagram of a flow chart of another spectrum resource determination method provided in an embodiment of the present application;

[0069] FIG12 is a schematic diagram of spectrum resource configuration update of the first network and the second network;

[0070] FIG13 is a schematic diagram of an example of resource usage after spectrum resource configuration is updated;

[0071] FIG14 is another schematic diagram of spectrum resource configuration update of the first network and the second network;

[0072] FIG15 is a schematic diagram of another example of resource usage after spectrum resource configuration is updated;

[0073] Figure 16 is a schematic diagram of satellite-to-ground signal propagation;

[0074] FIG17 is a flow chart of another spectrum resource determination method provided in an embodiment of the present application;

[0075] FIG18A is another schematic diagram of spectrum resource configuration update of the first network and the second network;

[0076] FIG18B is a schematic diagram of another example of resource usage after spectrum resource configuration is updated;

[0077] FIG19A is another schematic diagram of spectrum resource configuration update of the first network and the second network;

[0078] FIG19B is a schematic diagram of another example of resource usage after spectrum resource configuration is updated;

[0079] FIG20 is a schematic diagram of a flow chart of another spectrum resource determination method provided in an embodiment of the present application;

[0080] FIG21 is a schematic diagram of another example of spectrum resource determination;

[0081] FIG22A is a schematic diagram of an example of determining spectrum resources in a scenario where a satellite interferes with a ground base station;

[0082] FIG22B is a schematic diagram of another example of determining spectrum resources in a scenario where a satellite interferes with a ground base station;

[0083] FIG23A is a schematic diagram of an example of determining spectrum resources in a scenario where a ground base station within satellite coverage interferes with a satellite base station;

[0084] FIG23B is a schematic diagram of another example of determining spectrum resources in a scenario where a ground base station within satellite coverage interferes with a satellite base station;

[0085] FIG24 is a schematic structural diagram of a spectrum resource determination apparatus provided in an embodiment of the present application;

[0086] FIG25 is a schematic structural diagram of another spectrum resource determination device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0087] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0088] The following at least one (item) involved in this application indicates one (item) or more (items). More than one (item) refers to two (items) or more than two (items). "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. In addition, it should be understood that although the terms first, second, etc. may be used to describe each object in this application, these objects should not be limited to these terms. These terms are only used to distinguish each object from each other.

[0089] The terms "including" and "having" and any variations thereof mentioned in the following description of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any method or design described in this application as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other methods or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way.

[0090] The technology provided by this application can be applied to various communication systems. For example, the communication system can be a fourth generation (4G) th generation, 4G) communication systems (such as long term evolution (LTE) systems), fifth generation (5 th The 5G communication system may also be referred to as a new radio (NR) system.

[0091] A network element in a communication system can send a signal to another network element or receive a signal from another network element. The signal may include information, signaling, or data, etc. The network element can also be replaced by an entity, a network entity, a device, a terminal device, a communication module, a node, a communication node, etc. The present application uses the network element as an example for description. For example, the communication system may include at least one terminal device and at least one access network device. The access network device can send a downlink signal to the terminal device, and / or the terminal device can send an uplink signal to the access network device. In addition, it can be understood that if the communication system includes multiple terminal devices, the multiple terminal devices can also send signals to each other, that is, the signal sending network element and the signal receiving network element can both be terminal devices.

[0092] The spectrum resource determination method provided in the embodiment of the present application can be applied to wireless communication systems such as 5G, 6G, and satellite communications. Referring to Figure 1, Figure 1 is a simplified schematic diagram of the wireless communication system provided in the embodiment of the present application. As shown in Figure 1, the wireless communication system includes a wireless access network 100. The wireless access network 100 can be a next-generation (e.g., 6G or higher) wireless access network, or a traditional (e.g., 5G, 4G) wireless access network. One or more terminal devices (120a-120g, collectively referred to as 120) can be connected to each other, or connected to one or more network devices (110a~110c, collectively referred to as 110) in the wireless access network 100, and the connection method can be wired or wireless. Optionally, Figure 1 is only a schematic diagram, and the wireless communication system may also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, etc., which are not drawn in Figure 1.

[0093] Optionally, in actual applications, the wireless communication system may include multiple network devices (also called access network devices) and multiple terminal devices at the same time. A network device can serve one or more terminal devices at the same time. A terminal device can also access one or more network devices at the same time. The embodiments of the present application do not limit the number of terminal devices and network devices included in the wireless communication system.

[0094] The network device may be an entity on the network side for transmitting or receiving signals. The network device may be an access device for a terminal device to access the wireless communication system in a wireless manner, such as a base station. The base station can broadly cover various names as follows, or be replaced with the following names, such as: RAN node, NodeB, evolved NodeB (eNB), next generation NodeB (gNB), access network equipment in open radio access network (O-RAN), relay station, access point, transmission point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, building baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), centralized unit (CU), distributed unit (DU), radio unit (RU), centralized unit control plane (CU control plane) A base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A network device may also refer to a communication module, a modem or a chip provided in the aforementioned device or apparatus. A network device may also be a mobile switching center and a device to device (D2D), vehicle-to-everything (V2X), or machine-to-machine (M2M) communication device that performs base station functions, a network side device in a 6G network, or a device that performs base station functions in a future communication system. The network device may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0095] Network devices can be fixed or mobile. For example, base stations 110b and 110c are stationary and are responsible for wireless transmission and reception in one or more cells from terminal device 120. The helicopter or drone 120c shown in Figure 1 can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station 120c. In other examples, the helicopter or drone (120c) can be configured to act as a terminal device communicating with satellite base station 110a.

[0096] In the present application, the spectrum resource determination apparatus for implementing the above-mentioned access network function may be an access network device, a network device having some of the access network functions, or a device capable of supporting the implementation of the access network functions, such as a chip system, a hardware circuit, a software module, or a hardware circuit and a software module. The apparatus may be installed in the access network device or used in conjunction with the access network device. In the method of the present application, the spectrum resource determination apparatus for implementing the access network device function is described as an access network device.

[0097] A terminal device may be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may be used to connect people, objects, and machines. The terminal device may communicate with one or more core networks through a network device. The terminal device includes a handheld device with wireless connection capabilities, other processing devices connected to a wireless modem, or a vehicle-mounted device. The terminal device may be a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device. The terminal device 120 may be widely used in various scenarios, such as cellular communication, D2D, V2X, point-to-point (P2P), machine-to-machine (M2M), machine type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery and mobility, etc.Some examples of the terminal device 120 include: user equipment (UE) of the 3GPP standard, fixed equipment, mobile equipment, handheld equipment, wearable equipment, cellular phones, smart phones, session initiated protocol (SIP) phones, laptops, personal computers, smart books, vehicles, satellites, global positioning system (GPS) equipment, target tracking equipment, drones, helicopters, aircraft, ships, remote control equipment, smart home equipment, industrial equipment, personal communication service (PCS) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), wireless network cameras, tablet computers, handheld computers, mobile internet devices (MIDs), wearable devices such as smart watches, VR devices, AR devices, wireless terminals in industrial control, terminals in vehicle networking systems, wireless terminals in self-driving cars, wireless terminals in smart grids, wireless terminals in transportation safety, and smart cities. The terminal device 120 may be a wireless terminal in a city, such as a smart gas pump, a terminal device on a high-speed rail, and a wireless terminal in a smart home, such as a smart speaker, a smart coffee machine, a smart printer, etc. The terminal device 120 may be a wireless device in the above various scenarios or a device for being set in a wireless device, for example, a communication module, a modem or a chip in the above device. The terminal device may also be referred to as a terminal, a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may also be a terminal device in a future wireless communication system. The terminal device may be used in a dedicated network device or a general device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0098] Alternatively, a terminal device can function as a base station. For example, a UE can act as a dispatching entity, providing sidelink signals between UEs in V2X, D2D, or P2P scenarios. As shown in Figure 1, a cell phone 120a and a car 120b communicate with each other using sidelink signals. Cell phone 120a and smart home device 120e communicate without relaying the communication signals through base station 110b.

[0099] In the present application, the spectrum resource determination device for implementing the functions of the terminal device can be a terminal device, or a terminal device having some of the functions of the above terminal devices, or a device capable of supporting the implementation of the functions of the above terminal devices, such as a chip system, which can be installed in the terminal device or used in combination with the terminal device. In the present application, the chip system can be composed of chips, or can include chips and other discrete devices. In the technical solution provided in the present application, the spectrum resource determination device is described as a terminal device or UE as an example.

[0100] Optionally, a wireless communication system is typically composed of cells, with base stations providing cell management and communication services to multiple mobile stations (MS) in the cell. The base station includes a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU can be placed in different locations, for example: the RRU is remote and placed in an area with high traffic volume, while the BBU is placed in a central computer room. The BBU and RRU can also be placed in the same computer room. The BBU and RRU can also be different components under the same rack. Optionally, a cell can correspond to a carrier or component carrier.

[0101] In some deployments, the network devices mentioned in the embodiments of the present application may include a CU, a DU, or both a CU and a DU, or a control plane CU node (central unit-control plane (CU-CP)), a user plane CU node (central unit-user plane (CU-UP)), and a DU node. For example, the network devices may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0102] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes implementing portions of the base station's functionality. For example, a RAN node can be a CU, DU, CU-CP, CU-UP, or RU. The CU and DU can be separate or included in the same network element, such as the BBU. The RU can be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.

[0103] The RAN node may support one or more types of fronthaul interfaces, with different fronthaul interfaces corresponding to DUs and RUs with different functions. If the fronthaul interface between the DU and the RU is a common public radio interface (CPRI), the DU is configured to implement one or more baseband functions, and the RU is configured to implement one or more radio frequency functions. If the fronthaul interface between the DU and the RU is another type of interface, relative to the CPRI, some of the downlink and / or uplink baseband functions, such as precoding, digital beamforming (BF), or one or more of inverse fast Fourier transform (IFFT) / cyclic prefix (CP) for downlink, are moved from the DU to the RU for implementation; and for uplink, one or more of digital beamforming (BF), or fast Fourier transform (IFFT) / cyclic prefix (CP) removal, are moved from the DU to the RU for implementation. In one possible implementation, the interface may be an enhanced common public radio interface (eCPRI). In the eCPRI architecture, the division between the DU and RU is different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, and F.

[0104] Taking eCPRI Cat A as an example, for downlink transmission, based on layer mapping, the DU is configured to implement layer mapping and one or more functions preceding it (i.e., one or more of coding, rate matching, scrambling, modulation, and layer mapping). Other functions after layer mapping (e.g., RE mapping, digital beamforming (BF), or one or more of inverse fast Fourier transform (IFFT) / cyclic prefix (CP) addition) are moved to the RU for implementation. For uplink transmission, based on RE demapping, the DU is configured to implement demapping and one or more functions preceding it (i.e., one or more of decoding, rate matching, descrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and RE demapping). Other functions after demapping (e.g., one or more of digital BF or fast Fourier transform (FFT) / CP removal) are moved to the RU for implementation. It is understandable that for the functional description of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol, which will not be described in detail here.

[0105] In one possible design, the processing unit for implementing baseband functions in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing baseband functions in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0106] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0107] In the embodiments of the present application, the device for implementing the functions of the network device can be a network device; it can also be a device that can support the network device to implement the functions, such as a chip system, a hardware circuit, a software module, or a hardware circuit and a software module. The device can be installed in the network device or used in conjunction with the network device. In the embodiments of the present application, only the device for implementing the functions of the network device is used as an example to illustrate, and does not constitute a limitation on the solutions of the embodiments of the present application.

[0108] It is understandable that the present application can be applied between network devices and terminal devices.

[0109] The communication between the network device and the terminal device follows a certain protocol layer structure. The protocol layer structure may include a control plane protocol layer structure and a user plane protocol layer structure. For example, the control plane protocol layer structure may include the functions of the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical layer. For example, the user plane protocol layer structure may include the functions of the PDCP layer, the RLC layer, the MAC layer, and the physical layer. In one possible implementation, a service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

[0110] Optionally, the protocol layer structure between the network device and the terminal device may further include an artificial intelligence (AI) layer for transmitting data related to AI functions.

[0111] Taking data transmission between network devices and terminal devices as an example, data transmission needs to pass through the user plane protocol layers, such as the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer. The SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer can also be collectively referred to as the access layer. Data transmission is divided into sending or receiving based on the direction of transmission, and each of these layers is further divided into a sending part and a receiving part. Taking downlink data transmission as an example, after the PDCP layer obtains data from the upper layer, it transmits the data to the RLC layer and MAC layer. The MAC layer then generates a transport block, which is then wirelessly transmitted through the physical layer. Data is encapsulated accordingly in each layer. For example, data received by a layer from the layer above it is considered a service data unit (SDU) of that layer. After encapsulation by that layer, it becomes a protocol data unit (PDU) and is then passed to the next layer.

[0112] For example, a terminal device may also include an application layer and a non-access layer. The application layer can be used to provide services to applications installed in the terminal device. For example, downlink data received by the terminal device can be sequentially transmitted from the physical layer to the application layer, which then provides it to the application. For another example, the application layer can obtain data generated by the application and sequentially transmit the data to the physical layer for transmission to other spectrum resource determination devices. The non-access layer can be used to forward user data, such as forwarding uplink data received from the application layer to the SDAP layer, or forwarding downlink data received from the SDAP layer to the application layer.

[0113] It should be understood that the number and type of each device in the communication system shown in Figure 1 are for illustration only, and the present application is not limited to this. In actual applications, the communication system may also include more terminal devices, more access network devices, and other network elements, such as core network devices, and / or network elements for implementing artificial intelligence functions.

[0114] It is understandable that all or part of the functions implemented by one or more of the terminal equipment, access network equipment, core network equipment, or network elements for implementing artificial intelligence functions can be virtualized, that is, implemented by one or more of the proprietary processors or general-purpose processors and the corresponding software modules. Among them, since the terminal equipment and the access network equipment involve interfaces for air interface transmission, the transceiver functions of the interfaces can be implemented by hardware. Core network equipment, such as operation administration and maintenance (OAM) network elements, can be virtualized. Optionally, one or more functions of the virtualized terminal equipment, access network equipment, core network equipment, or network elements for implementing artificial intelligence functions can be implemented by cloud devices, such as cloud devices in over the top (OTT) systems.

[0115] The following first introduces several concepts that may be involved in this application:

[0116] (1) NTN network:

[0117] An NTN network utilizes radio frequency resources from satellites (or unmanned aircraft systems (UAS) or high altitude platform stations (HAPS)). Compared to terrestrial cellular networks (such as 5G mobile communication systems), NTN networks offer wide coverage, low latency, broadband, and low cost. As a supplement and extension of terrestrial networks, NTN networks can achieve wide-area seamless coverage that neither wired telephone networks nor terrestrial mobile communication networks can achieve, effectively addressing internet access challenges in areas lacking communication infrastructure. With a large number of satellites deployed in low-Earth orbit, the round-trip data transmission latency between satellites and ground terminals is significantly reduced, reaching a low latency of tens of milliseconds. The use of high-frequency bands, multi-spot beams, and frequency reuse technologies has significantly enhanced satellite communication capabilities, reducing unit bandwidth costs and meeting the demands of high-information-rate services. Compared to communication infrastructure such as terrestrial 5G base stations and submarine fiber optic cables, NTN networks offer significant cost advantages. Modern small satellites are inexpensive to develop and manufacture, and software-defined technologies can further extend the service life of in-orbit satellites. NTN networks can be used in scenarios such as global coverage (such as remote areas and ocean-going ships), emergency relief (such as disaster monitoring and emergency communications), the Internet of Everything, and high-speed mobility (such as high-speed rail and airplanes).

[0118] Typical scenarios for NTN networks to provide terminal device access include transparent payloads and regenerative payloads. As shown in Figure 2A, a schematic diagram of an NTN scenario based on a transparent payload, a transparent payload is a payload that changes the frequency carrier of the uplink RF signal and filters and amplifies it before downlink transmission. This payload only has an RF processing unit and does not have baseband demodulation, decoding, or other processing. Therefore, the signal waveform is unchanged and is repeated. As shown in Figure 2B, a schematic diagram of an NTN scenario based on a regenerative payload, a regenerative payload is a payload that transforms and amplifies the uplink RF (radio frequency, RF) signal before downlink transmission. Signal conversion refers to digital processing, which can include demodulation, decoding, re-encoding, remodulation, and / or filtering. This is actually equivalent to having all or part of the base station functions on a satellite (or UAS platform).

[0119] The above-mentioned NTN network generally has the following elements:

[0120] (1) There are one or more gateways connecting the NTN network and the common data network.

[0121] (2) Feeder link: The wireless link between the gateway and the satellite (or UAS platform).

[0122] (3) Service link: The wireless link between the terminal device and the satellite (or UAS platform).

[0123] (4) Satellites (or UAS platforms) can realize transparent payloads and regenerative payloads.

[0124] (5) Whether the satellite constellation has an inter-satellite link (ISL) is optional. ISLs require that the satellites be regenerative payloads (i.e., if ISLs are present, the satellites must be regenerative payloads). ISLs can operate in either RF or optical bands.

[0125] (6) The terminal device is served by a satellite (or UAS platform) within the target service area.

[0126] (2) Satellite spectrum:

[0127] Satellite communications operate in the microwave band, which ranges from 1 GHz to 40 GHz. Frequency bands are categorized as L, S, C, X, Ku, K, and Ka. Different frequency bands serve different purposes. The K band, however, is not suitable for satellite communications because it falls within the frequency window most susceptible to atmospheric absorption losses. Therefore, the commonly used satellite communication frequency bands are L, S, C, X, Ku, and Ka.

[0128] The L and S bands are used for mobile satellite communications, such as handheld satellite phones. The C band, with its relatively low frequency, offers wide signal coverage and is less susceptible to weather. It is commonly used for private network communications within government and enterprise organizations, cross-border dedicated lines, and television content distribution. The X band is a regulated band, typically used by government and military agencies and not for civilian or commercial use. The Ku band, with its relatively high frequency, is susceptible to antenna interference and signal fluctuations, but its signal strength is higher than that of the C band. Therefore, ground receiving antennas can be much smaller, typically as small as 0.35 meters in diameter, making it ideal for satellite TV direct-to-home broadcasts. The Ka band has recently gained traction. As the C and Ku bands are nearing saturation and unable to carry more services, the search for higher-frequency Ka bands has begun. Higher-frequency bands offer greater bandwidth resources and support greater service capacity. With the surge in demand for satellite internet access in recent years, interest in the higher-frequency Ka band has begun. Although more susceptible to weather than the Ku band, its larger operating bandwidth, higher signal strength, and smaller antenna diameter make it more valuable for development.

[0129] With the rapid development of LEO satellite communications, frequency bands such as Ku / Ka / Q / V have become popular for satellite communications applications. Spectrum resources are rapidly being occupied and becoming increasingly scarce. To expand bandwidth, LEO satellite communications are seeking to jointly build and share spectrum resources in international mobile telecommunications (IMT) or geostationary Earth orbit (GEO).

[0130] (3) Inter-system interference

[0131] Spectrum co-construction and sharing can improve resource utilization and reduce construction costs, but it also requires addressing the issue of co-channel and adjacent-channel interference between satellite networks and terrestrial cellular networks. Inter-system interference can be categorized as downlink interference or uplink interference based on the signal direction.

[0132] Downlink interference has the following characteristics:

[0133] (1) Fewer interference sources. Taking low-orbit satellite interference with ground terminals as an example, as shown in Figure 3A, the main interference source is satellite 1, which covers this terminal. The interference from satellite 2 to this terminal mainly comes from the side lobes, and the path loss is greater, so the interference level is lower.

[0134] (2) Since ground base stations / low-orbit satellites are closer to terminal devices, the interference is stronger.

[0135] Uplink interference has the following characteristics:

[0136] (1) Multiple interference sources: Taking the interference of ground terminals with low-orbit satellites as an example, as shown in Figure 3B, the schematic diagram of ground terminal equipment interfering with low-orbit satellites, the interference sources are all ground terminals within the visible range of the satellite;

[0137] (2) Strong aggregate interference: The main interference source is the terminal near the main lobe of the satellite beam, at which point the satellite receiving gain is large;

[0138] (3) Beam level: For a single-satellite multi-beam scenario, different beam directions of the satellite are subject to different interferences.

[0139] Regarding the co-construction and sharing of spectrum resources, in the early stages of 5G deployment, some operators lacked independent NR spectrum resources, hindering 5G network deployment. While some operators did have independent NR spectrum resources, they also faced low spectrum utilization due to the low penetration rate of 5G terminals in the early stages. Long Term Evolution - New Radio (LTE-NR, LNR) addresses this issue by sharing spectrum between LTE and NR.

[0140] As shown in Figure 4, the schematic diagram of LTE frequency division duplex (FDD) and NR instantaneous dynamic spectrum sharing shows that LTE FDD and NR instantaneous dynamic spectrum sharing achieves a granularity of 1ms in the time domain and a sharing granularity of 1 resource block (RB) in the frequency domain.

[0141] LNR avoids interference and conflict during the sharing process by coordinating the scheduling of uplink and downlink physical channels and signal resources. Uplink spectrum resource coordination involves unified coordination and scheduling of the spectrum resources occupied by each uplink physical channel. Figure 5 shows a schematic diagram of uplink spectrum resource coordination in LNR. NR's PUCCH is symmetrically fixed at the extreme ends of the frequency domain. LTE's PUCCH is symmetrically deployed at both ends of the frequency domain, following NR's PUCCH. LTE's PRACH is deployed at the low-frequency end following LTE's PUCCH, and NR's PRACH is deployed at the high-frequency end following LTE's PUCCH. LTE and NR's PUSCH are dynamically shared based on service priority and spectrum priority.

[0142] Downlink spectrum resource coordination primarily prioritizes different physical channels and signals. When resource conflicts occur, the higher-priority channel or signal is retained. Specifically, the following order is: Synchronous Broadcast Channels and Signals (SS, PBCH) > Reference Signals (DMRS, CSI-RS, CRS (LTE only), PT-RS (NR only)) > Control Channel (PDCCH) > Traffic Channel (PDSCH). Channels or signals of the same type avoid each other statically or dynamically. For example, in the case of some channels and signals, LTE's PDSCH actively avoids NR's SSB (SS / PBCH), while NR's PDSCH actively avoids LTE's CRS. LTE and NR's PDCCH and PDSCH dynamically share resources on demand.

[0143] However, LNR requires that the radio frames and subframes of LTE and NR cells participating in spectrum sharing be fully aligned. If the subframes are not aligned, spectrum overlap will occur, leading to mutual interference. Figure 6 shows a schematic diagram of misaligned radio frames between LTE and NR cells.

[0144] However, in satellite-to-ground scenarios, it is difficult to achieve and maintain frame-level synchronization between satellites and a large number of ground base stations. Therefore, the LNR mechanism is not suitable for satellite-to-ground spectrum sharing scenarios.

[0145] A satellite-ground dynamic spectrum sharing solution has been proposed, as shown in Figure 7. The main ideas are as follows:

[0146] (1) Control signaling is sent on fixed spectrum resources of each network;

[0147] (2) Some RBs form a guard band to prevent mutual interference between TN and NTN;

[0148] (3) Since TN and NTN are not synchronized, a time interval (Guard time) needs to be set when updating spectrum resources to prevent mutual interference between TN and NTN;

[0149] (4) The spectrum management server (SMS) determines spectrum resource allocation based on network load.

[0150] This spectrum sharing solution does not require precise synchronization between the NTN and TN and can be used in satellite-to-ground spectrum sharing scenarios. However, it does not specify how to configure the guard band or guard time.

[0151] To this end, an embodiment of the present application provides a spectrum resource determination scheme. The server configures the first spectrum resource, the second spectrum resource corresponding to the first network in the first spectrum resource, the third spectrum resource corresponding to the second network in the first spectrum resource, the spectrum boundary between the second spectrum resource and the third spectrum resource, the minimum Doppler shift, and at least one of the maximum Doppler shift. Based on the configuration, the second network can accurately determine the spectrum boundary corresponding to the second network, thereby realizing the configuration of the interval frequency band, avoiding spectrum overlap caused by Doppler shift, and thereby avoiding interference between the first network and the second network.

[0152] The following describes the spectrum resource determination method provided by this application based on the communication system shown in FIG1 :

[0153] In this application, "sending information to... (e.g., the second network)" or the related illustrations in the accompanying drawings can be understood as the destination end of the information being the second network. This can include sending information to the second network directly or indirectly. "Receiving information from... (e.g., the second network)" or "receiving information from... (e.g., the second network)", or the related illustrations in the accompanying drawings can be understood as the source end of the information being the second network, which can include receiving information from the second network directly or indirectly. The information may be processed as necessary between the source end and the destination end of the information transmission, such as format changes, etc., but the destination end can understand the valid information from the source end. Similar expressions in this application can be understood similarly and will not be repeated here.

[0154] The spectrum resource determination method provided by the embodiment of the present application is described in detail below. It can be understood that the present application uses the second network and the server as an example to illustrate the execution subject of the interaction diagram, but the present application does not limit the execution subject of the interaction diagram. For example, the second network in the method provided by the present application can also be a chip, chip system, or processor applied to the second network, or a logical node, logic module, or software that can implement all or part of the second network; the server in the method provided by the present application can also be a chip, chip system, or processor applied to the server, or a logical node, logic module, or software that can implement all or part of the server function.

[0155] As shown in Figure 8, a flow chart of a spectrum resource determination method provided in an embodiment of the present application is provided. Exemplarily, the method may include the following steps:

[0156] S801. The server sends first configuration information to the second network. Correspondingly, the second network receives the first configuration information.

[0157] Exemplarily, the server in this embodiment may be an SMS.

[0158] In this embodiment, the first network and the second network share the first spectrum resource, and communications in the first network may cause interference to the second network. For example, the first network may be a TN and the second network may be an NTN; or the first network may be an NTN and the second network may be a TN.

[0159] A first network and a second network share spectrum resources, and communication in the first network may cause interference to the second network. The second network needs to determine a spectrum boundary corresponding to the second network to avoid interference from the first network.

[0160] Before determining the spectrum boundary corresponding to the second network, the server first sends first configuration information to the second network. Furthermore, the server may also send the first configuration information to the first network.

[0161] Among them, the first configuration information includes at least one of the following items: the first spectrum resource, the second spectrum resource corresponding to the first network in the first spectrum resource, the third spectrum resource corresponding to the second network in the first spectrum resource, the spectrum boundary between the second spectrum resource and the third spectrum resource, the minimum Doppler shift, and the maximum Doppler shift.

[0162] The first spectrum resource is a spectrum resource shared by the first network and the second network, and the server allocates a second spectrum resource within the first spectrum resource to the first network for use, and allocates a third spectrum resource within the first spectrum resource to the second network for use. For example, the granularity of the spectrum resource can be RBs, resource block groups (RBGs), frequency ranges, etc.

[0163] In order to avoid spectrum overlap caused by Doppler shift and thus avoid interference between the first network and the second network, a spectrum boundary f is set between the second spectrum resource and the third spectrum resource. boundary .

[0164] The server also configures the minimum Doppler offset fd for the second network min , maximum Doppler shift fd max Among them, fd min =-fd max (Consider the positive and negative signs.) The minimum Doppler shift is the minimum Doppler shift at the network level; the maximum Doppler shift is the minimum Doppler shift at the network level.

[0165] Figure 9 shows a schematic diagram of Doppler shift calculation, where the small circle represents the Earth and the large circle represents the satellite orbit. Assuming that the edge point of the satellite cell coverage is M, the corresponding maximum Doppler shift is in u is the geocentric angle, F cis the carrier frequency, v is the moving speed of the satellite, R is the radius of the earth, h is the altitude of the satellite orbit, and c is the speed of light.

[0166] S802. The second network determines a spectrum boundary corresponding to the second network.

[0167] The second network determines the spectrum boundary corresponding to the second network, which is divided into the following two cases:

[0168] In the first case, if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift, that is, the minimum frequency of the second network is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift. Guard band>=fd max .

[0169] As shown in FIG10A , a schematic diagram of an example of determining spectrum resources is provided. Assume that the first network is TN and the second network is NTN. If the center frequency of the spectrum resources of NTN is higher than the center frequency of the spectrum resources of TN, the maximum frequency of NTN is Guard band>=fd max .

[0170] In the second case, if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency of the second network is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift, that is, the maximum frequency of the second network is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift. Guard band>=fd max .

[0171] As shown in FIG10B , another example of determining spectrum resources is shown. Assume that the first network is TN and the second network is NTN. If the center frequency of the spectrum resources of NTN is lower than the center frequency of the spectrum resources of TN, then the center frequency of the spectrum resources of NTN is Guard band>=fd max .

[0172] According to a spectrum resource determination method provided in an embodiment of the present application, the server configures the first spectrum resource, the second spectrum resource corresponding to the first network in the first spectrum resource, the third spectrum resource corresponding to the second network in the first spectrum resource, the spectrum boundary between the second spectrum resource and the third spectrum resource, the minimum Doppler shift, and at least one of the maximum Doppler shift. Based on the configuration, the second network can accurately determine the spectrum boundary corresponding to the second network, thereby realizing the configuration of the interval frequency band, avoiding spectrum overlap caused by Doppler shift, and thus avoiding interference between the first network and the second network.

[0173] The above embodiment describes the configuration of the Guard Band. The following embodiment describes the configuration of the Guard Time. The following embodiment can be implemented independently or in combination with the above embodiment of the Guard Band configuration.

[0174] Depending on whether the third spectrum resources configured by the server for the second network are more or less than the spectrum resources previously configured by the server for the second network, the following is described respectively through the embodiments shown in FIG11 and FIG17:

[0175] Figure 11 is a flow chart of another spectrum resource determination method provided in an embodiment of the present application. In this embodiment, the third spectrum resource configured by the server for the second network is greater than the fourth spectrum resource previously configured by the server for the second network. Exemplarily, the method may include the following steps:

[0176] S1101. The server sends first indication information to the second network. Correspondingly, the second network receives the first indication information.

[0177] The server allocates a portion of the first spectrum resource to the first network and the second network, respectively. This means that the first network and the second network share the first spectrum resource. The spectrum resource allocated by the server to the second network may change over time. For example, in this embodiment, the third spectrum resource currently allocated by the server to the second network is greater than the fourth spectrum resource previously allocated to the second network (via the second configuration information).

[0178] This embodiment does not require frame-level synchronization between the first network and the second network.

[0179] When the server configuration is updated, the server also needs to send first indication information to the second network. The first indication information is used to instruct the second network to use the third spectrum resource for communication after a first time, where the first time is the sum of the second time and the first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network.

[0180] Taking the first network as TN and the second network as NTN as an example, Figure 12 shows a schematic diagram of the spectrum resource configuration update for the first and second networks. TN and NTN share the first spectrum resource. The left side of the dotted line shows the spectrum resource configuration before the configuration update, and the right side of the dotted line shows the spectrum resource configuration after the configuration update. The spectrum resources currently configured for TN have decreased from more to less relative to the spectrum resources previously configured for TN, and the spectrum resources currently configured for NTN have increased from less to more relative to the spectrum resources previously configured for NTN. The spectrum resource configuration update occurs at a second time, t0, which is the time when the server's configuration takes effect. The server can also indicate this second time to TN and NTN.

[0181] The server also indicates to the NTN a first time interval Guard time>=t max NTN can also configure Guard time>=t according to base station location information max After t0, TN can use the new spectrum resource (i.e., the second spectrum resource) for communication, while NTN continues to use the old spectrum resource (i.e., the fourth spectrum resource) for communication. As shown in Figure 13, which illustrates an example of resource usage after the spectrum resource configuration is updated, the server instructs NTN to use the new spectrum resource (i.e., the third spectrum resource) for communication after the first time. The first time is the sum of the second time and the first time interval, i.e., the first time is t0 + Guard time.

[0182] TN uses new spectrum resources for communication after t0. The latest time when the interference signal before t0 reaches NTN is t0+t max If NTN is at time t0+t max New spectrum resources have been used for communication before. Since the spectrum occupied by the interference signal before time t0 overlaps with the new spectrum used by NTN, NTN may be interfered with. Configure Guard time>=t max ,NTN uses new spectrum resources for communication only after t0+Guard time, which can avoid interference.

[0183] Taking NTN as the first network and TN as the second network as an example, Figure 14 shows another schematic diagram of the spectrum resource configuration update for the first and second networks. TN and NTN share the first spectrum resource. The left side of the dotted line shows the spectrum resource configuration before the configuration update, and the right side of the dotted line shows the spectrum resource configuration after the configuration update. The spectrum resources currently configured for NTN have decreased from more to less relative to the spectrum resources previously configured for NTN, while the spectrum resources currently configured for TN have increased from less to more relative to the spectrum resources previously configured for TN. The spectrum resource configuration update occurs at a second time t0, i.e., the second time is the time when the server's configuration takes effect. The server can also indicate this second time to TN and NTN.

[0184] The server also indicates to TN the first time interval Guard time>=t max TN can also configure Guard time>=t according to base station location information max . And NTN can use the new spectrum resource (i.e., the second spectrum resource) for communication after t0, while TN continues to use the old spectrum resource (i.e., the fourth spectrum resource) for communication. As shown in Figure 15, which is a schematic diagram of another example of resource usage after the spectrum resource configuration is updated, the server indicates that TN can use the new spectrum resource (the third spectrum resource) for communication after the first time. The first time is the sum of the second time and the first time interval, that is, the first time is t0 + Guard time.

[0185] NTN uses new spectrum resources for communication after time t0. The latest time when the interference signal before time t0 reaches TN is t0+t max If TN is at time t0+t max The new spectrum resources have been used for communication before. Since the spectrum occupied by the interference signal before time t0 overlaps with the new spectrum used by TN, TN may be interfered with. Configure Guard time>=t max ,TN uses new spectrum resources for communication after t0+Guard time to avoid interference.

[0186] For example, the above t max It can be the maximum propagation delay from the first network to the second network.

[0187] The maximum propagation delay from the first network to the second network is related to the maximum distance from the satellite to the satellite within the coverage area of ​​the satellite cell and the speed of light. For example, as shown in the satellite-to-ground signal propagation diagram in Figure 16, t max =d max / c, where d max is the maximum distance to the satellite within the coverage area of ​​the satellite cell (corresponding to the edge point), and c is the speed of light.

[0188] According to a spectrum resource determination method provided in an embodiment of the present application, in a scenario where a first network and a second network share spectrum resources, the configuration of the time interval for the second network to use new spectrum resources is clarified. Through this configuration, interference between the first network and the second network can be avoided.

[0189] Figure 17 is a flow chart of another spectrum resource determination method provided in an embodiment of the present application. In this embodiment, the third spectrum resource configured by the server for the second network is less than the fifth spectrum resource previously configured by the server for the second network. Exemplarily, the method may include the following steps:

[0190] S1701. The server sends second indication information to the second network. Correspondingly, the second network receives the second indication information.

[0191] The server allocates a portion of the first spectrum resource to the first network and the second network, respectively. This means that the first network and the second network share the first spectrum resource. The spectrum resource allocated by the server to the second network may change over time. For example, in this embodiment, the third spectrum resource currently allocated by the server to the second network is smaller than the fifth spectrum resource previously allocated to the second network by the server (via the third configuration information).

[0192] This embodiment does not require frame-level synchronization between the first network and the second network.

[0193] When the server configuration is updated, the server also needs to send second indication information to the second network. The second indication information is used to instruct the second network to use third spectrum resources for communication before a third time, where the third time is the sum of the second time and a second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network.

[0194] Taking the first network as TN and the second network as NTN as an example, Figure 18A shows another schematic diagram of the spectrum resource configuration update for the first and second networks. TN and NTN share the first spectrum resource. The left side of the dotted line shows the spectrum resource configuration before the configuration update, and the right side of the dotted line shows the spectrum resource configuration after the configuration update. The spectrum resources currently configured for TN have increased compared to the spectrum resources previously configured for TN, while the spectrum resources currently configured for NTN have decreased compared to the spectrum resources previously configured for NTN. The spectrum resource configuration update occurs at a second time, t0, which is the time when the server's configuration takes effect. The server can also indicate this second time to TN and NTN.

[0195] The server also indicates to the NTN a second time interval Guard time <= t minNTN can also configure Guard time <= t according to the base station location information. min . And after t0, TN can use the new spectrum resources (i.e., the second spectrum resources) for communication, while NTN continues to use the old spectrum resources (i.e., the fifth spectrum resources) for communication. As shown in Figure 18B, which is a schematic diagram of another example of resource usage after the spectrum resource configuration is updated, the server instructs NTN to use the old spectrum resources (fifth spectrum resources) for communication before the third time, and to use the new spectrum resources (third spectrum resources) for communication after the third time. The third time is the sum of the second time and the second time interval, that is, the third time is t0 + Guard time.

[0196] TN uses new spectrum resources for communication after t0. The earliest time when the interference signal after t0 reaches NTN is t0+t min If NTN is at time t0+t min After that, the old spectrum resources are still used for communication. Since the spectrum occupied by the interference signal after time t0 overlaps with the old spectrum used by NTN, NTN may be interfered with. Configure Guard time <= t min ,NTN stops using the old spectrum resources for communication after t0+Guard time, that is, uses the new spectrum resources for communication, which can avoid interference.

[0197] Taking NTN as the first network and TN as the second network as an example, Figure 19A shows another schematic diagram of the spectrum resource configuration update for the first and second networks. TN and NTN share the first spectrum resource. The left side of the dotted line shows the spectrum resource configuration before the configuration update, and the right side of the dotted line shows the spectrum resource configuration after the configuration update. The spectrum resources currently configured for NTN have increased compared to the spectrum resources previously configured for NTN, while the spectrum resources currently configured for TN have decreased compared to the spectrum resources previously configured for TN. The spectrum resource configuration update occurs at a second time, t0, which is the time when the server's configuration takes effect. The server can also indicate this second time to TN and NTN.

[0198] The server also indicates to TN a second time interval Guard time <= t min TN can also configure Guard time <= t according to the base station location information min. And NTN can use the new spectrum resources (i.e., the second spectrum resources) for communication after t0, while TN continues to use the old spectrum resources (i.e., the fifth spectrum resources) for communication. As shown in Figure 19B, which is a schematic diagram of another example of resource usage after the spectrum resource configuration is updated, the server indicates that TN can use the old spectrum resources (fifth spectrum resources) for communication before the third time, and use the new spectrum resources (third spectrum resources) for communication after the third time. The third time is the sum of the second time and the second time interval, that is, the third time is t0 + Guard time.

[0199] NTN uses new spectrum resources for communication after t0. The earliest time that the interference signal after t0 reaches TN is t0+t min If TN is at t0+t min After that, the old spectrum resources are still used for communication. Since the spectrum occupied by the interference signal after t0 overlaps with the old spectrum used by TN, TN may be interfered with. Configure Guard time <= t min ,TN stops using the old spectrum resources for communication after t0+Guard time, that is, uses the new spectrum resources for communication to avoid interference.

[0200] For example, the above t min It can be the minimum propagation delay from the first network to the second network.

[0201] The minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light. For example, as shown in the satellite-to-ground signal propagation diagram in Figure 16, t min =d min / c, where d min is the minimum distance to the satellite within the coverage area of ​​the satellite cell (corresponding to the sub-satellite point), and c is the speed of light.

[0202] According to a spectrum resource determination method provided in an embodiment of the present application, the configuration of the time interval is clarified, and through this configuration, interference between the first network and the second network can be avoided.

[0203] The configuration of Guard time and Guard band involved in the above embodiment is a network-level configuration. The following embodiment will describe the cell-level configuration of Guard time and Guard band.

[0204] As shown in Figure 20, a flowchart of another spectrum resource determination method provided in an embodiment of the present application is provided. Exemplarily, the method may include the following steps:

[0205] S2001. The server sends first configuration information to the second network. Correspondingly, the second network receives the first configuration information.

[0206] The first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource.

[0207] The specific implementation of this step can refer to step S801 shown in FIG8 , and will not be described in detail here.

[0208] S2002. The second network obtains the location information of the first network and the location information of the second network device in the second network.

[0209] The second network may include one or more second network devices. The first network and the second network share the first spectrum resource. The first network may cause interference to the second network, and the interference caused by the first network to different second network devices in the second network may be different.

[0210] The second network first obtains the location information of the first network and the location information of the second network device.

[0211] Exemplarily, the server may indicate the location information of the first network to the second network, or the first network may indicate the location information of the first network to the second network, so that the second network may obtain the location information of the first network.

[0212] The second network also obtains location information of its own second network device.

[0213] For example, if the first network is NTN and the second network is TN, the server first obtains NTN's ephemeris information. The server can provide NTN with NTN's ephemeris information, or the NTN can provide NTN with NTN's ephemeris information. Then, based on NTN's ephemeris information, the server calculates the first network's location information at time t0 when the first configuration information takes effect.

[0214] Taking the first network as TN and the second network as NTN as an example, the server may indicate the location information of TN to NTN, or the TN may indicate the location information of TN to NTN.

[0215] S2003. The second network determines the minimum Doppler shift and the maximum Doppler shift corresponding to the second network device according to the location information of the first network and the location information of the second network device.

[0216] In the second network, different second network devices may occupy different spectrum resources, so the Doppler shifts generated by the first network for different second network devices may be different. The second network determines the minimum Doppler shift and maximum Doppler shift corresponding to each second network device.

[0217] Illustratively, the first network may include at least one first network device, and different first network devices may generate different Doppler shifts for the same second network device. The maximum Doppler shift corresponding to the second network device is the maximum value of at least one maximum Doppler shift of at least one first network device relative to the second network device; and the minimum Doppler shift corresponding to the second network device is the minimum value of at least one minimum Doppler shift of at least one first network device relative to the second network device.

[0218] A guard band between the second spectrum resource and the third spectrum resource is greater than or equal to a maximum Doppler shift.

[0219] S2004. The second network determines a spectrum boundary corresponding to the second network device.

[0220] The Doppler shifts generated by the first network for different second network devices may be different, so the second network determines the spectrum boundaries corresponding to each second network device separately. Specifically, there are two cases:

[0221] In the first case, if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network device is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler frequency shift corresponding to the second network device.

[0222] In the second case, if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency corresponding to the second network device is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler frequency shift corresponding to the second network device.

[0223] S2005. The second network determines a maximum propagation delay from the first network to the second network device and a minimum propagation delay from the first network to the second network device based on the location information of the first network and the location information of the second network device.

[0224] If the locations of the second network devices are different, the maximum and minimum propagation delays from the first network to different second network devices may be different. The second network determines the maximum and minimum propagation delays from the first network to each second network device based on the location information of the first network and the location information of the second network devices.

[0225] Furthermore, if the first network includes at least one first network device, and different first network devices have different location information, then the propagation delays from different first network devices to the second network device may be different. The maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device; the minimum propagation delay from the first network to the second network device is the minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

[0226] Taking the first network as NTN and the second network as TN as an example, the maximum propagation delay from NTN to the base station is equal to the minimum propagation delay from NTN to the base station, both of which are t delay If the NTN includes multiple satellites, the maximum propagation delay from the NTN to the base station is the maximum value of multiple maximum propagation delays from the multiple satellites in the NTN to the base station.

[0227] Taking the first network as TN and the second network as NTN as an example, the maximum propagation delay from TN to the satellite base station is the propagation delay from the base station farthest from the satellite within the coverage area of ​​NTN to the satellite base station; the minimum propagation delay from TN to the satellite base station is the propagation delay from the base station closest to the satellite within the coverage area of ​​NTN to the satellite base station.

[0228] The server and the second network perform the following steps S2006a or S2006b according to the changes before and after the spectrum resource update:

[0229] S2006a. If the third spectrum resource becomes more than the fourth spectrum resource configured for the second network by the second configuration information, the server sends a first indication message to the second network, the first indication message being used to instruct the second network device to communicate using the third spectrum resource after a first time, the first time being the sum of the second time and the first time interval, the first time interval being greater than or equal to the maximum propagation delay from the first network to the second network device; or

[0230] S2006b. If the third spectrum resources become less than the fifth spectrum resources configured for the second network by the third configuration information, the server sends a second indication information to the second network, and the second indication information is used to instruct the second network device to use the fifth spectrum resources for communication before a third time, where the third time is the sum of the second time and the second time interval, and the second time interval is less than or equal to the minimum propagation delay from the first network to the second network device.

[0231] It is understandable that the above processes of configuring the cell-level Guard band (ie, steps S2001 to S2004) and the cell-level Guard time (ie, steps S2005, S2006a, S2006b) can be performed jointly or independently.

[0232] Taking the first network as NTN and the second network as TN as an example, TN calculates the corresponding and Among them, each base station corresponds to and are the maximum and minimum Doppler shifts corresponding to the base station. If the NTN includes multiple satellites, the maximum Doppler shift corresponding to the base station is the maximum value among the maximum Doppler shifts of the multiple satellites for the base station; the minimum Doppler shift corresponding to the base station is the minimum value among the minimum Doppler shifts of the multiple satellites for the base station.

[0233] If the center frequency of the spectrum resource of TN is higher than the center frequency of the spectrum resource of NTN, the minimum frequency of the base station is greater than or equal to the spectrum boundary f between the spectrum resources of TN and NTN. boundary , corresponding to the base station The sum of the base station The Guard band between the spectrum resources of the base station and the spectrum resources of NTN is greater than or equal to the corresponding Right now

[0234] If the center frequency of the spectrum resource of TN is lower than the center frequency of the spectrum resource of NTN, the maximum frequency of the base station is less than or equal to the spectrum boundary f between the spectrum resources of TN and NTN. boundary , corresponding to the base station The sum of the base station The Guard band between the spectrum resources of the base station and the spectrum resources of NTN is greater than or equal to the corresponding Right now

[0235] For example, as shown in Figure 21, another example of spectrum resource determination, assume that the satellite flies from left to right and there are two ground base stations in the coverage area: gNB#1 and gNB#2. At t0, the distances between gNB#1 and gNB#2 and the satellite are d1 and d2, respectively. For gNB#1, t delay =d1 / c, for gNB#2, t delay =d2 / c.

[0236] For gNB#1, its Doppler shift f doppler1 <0 (satellite is far away from gNB#1); for gNB#2, its Doppler offset f doppler2>0 (satellite is close to gNB#2). As shown in Figure 22A, an example of determining spectrum resources in the scenario of satellite interference with ground base stations is shown. If the center frequency of gNB#1's spectrum resources is higher than the center frequency of NTN's spectrum resources, then the spectrum boundary corresponding to gNB#1 is greater than or equal to f boundary +f doppler1 As shown in Figure 22B, another example of determining spectrum resources in the scenario of satellite interference with ground base stations is shown. If the center frequency of gNB#2's spectrum resources is higher than the center frequency of NTN's spectrum resources, then the spectrum boundary corresponding to gNB#2 is greater than or equal to f boundary +f doppler2 .

[0237] In the scenario of NTN interfering with TN, for each gNB in ​​TN, the interference source comes from the satellite. Therefore, after TN obtains the ephemeris information of NTN, each gNB can calculate the propagation delay t between itself and the interference source satellite. delay =t max =t min , and Doppler shift Configure Guard time >= t delay Or Guard time <= t delay , which can avoid interference between TN and NTN when spectrum resource allocation is updated. Configure spectrum boundary>=f boundary +f doppler Or spectrum edge <= f boundary +f doppler This prevents spectrum overlap caused by Doppler shift, thereby minimizing interference between TNs and NTNs. Configuring guard time and guard band at the cell level further improves resource utilization compared to network-level configuration.

[0238] Taking the first network as TN and the second network as NTN as an example, NTN calculates the distance from each base station to the satellite at t0 (the effective time of the first configuration information) based on the location information of each base station in TN within the coverage area and its own ephemeris information, and determines t max and t min , where t max and t min They are the propagation delays of the base stations farthest and closest to the satellite within the NTN coverage area, and then configure Guard time>=t max Or Guard time <= t min .

[0239] NTN calculates the corresponding satellite base stations based on the location information of each TN base station within the coverage area and its own ephemeris information. and in and are the maximum and minimum values ​​of the Doppler shift corresponding to the satellite base station.

[0240] Furthermore, if TN includes multiple base stations, the maximum Doppler shift corresponding to the satellite base station is the maximum value among the multiple maximum Doppler shifts of the multiple base stations relative to the satellite base station; the minimum Doppler shift corresponding to the satellite base station is the minimum value among the multiple minimum Doppler shifts of the multiple base stations relative to the satellite base station.

[0241] If the center frequency of the spectrum resource of NTN is higher than the center frequency of the spectrum resource of TN, the minimum frequency of the satellite base station is greater than or equal to the spectrum boundary f between the spectrum resources of NTN and TN. boundary , corresponding to the satellite base station The sum of the satellite base station The Guard band between the satellite base station and the spectrum resource of the TN is greater than or equal to the corresponding spectrum resource of the satellite base station. Right now

[0242] If the center frequency of the spectrum resource of NTN is lower than the center frequency of the spectrum resource of TN, the maximum frequency of the satellite base station is less than or equal to the spectrum boundary f between the spectrum resources of NTN and TN. boundary , corresponding to the satellite base station The sum of the satellite base station The Guard band between the spectrum resources of NTN and TN is greater than or equal to Right now

[0243] Still referring to Figure 21, the satellite flies from left to right. There are two ground base stations in the coverage area, gNB#1 and gNB#2. At t0, the distances between gNB#1 and gNB#2 and the satellite are d1 and d2 respectively. For NTN, t max =d1 / c,t min =d2 / c.

[0244] gNB#1’s Doppler shift f for NTN doppler1 <0 (satellite is far away from gNB#1), gNB#2 has a Doppler offset f for NTN doppler2 >0 (satellite is close to gNB#2). Then for NTN, As shown in FIG23A , a schematic diagram of an example of determining spectrum resources in a scenario where a ground base station within the satellite coverage area interferes with a satellite base station, if the center frequency of the satellite base station is higher than the center frequency of the TN, then the spectrum boundary of the satellite base station is greater than or equal to f boundary +f doppler2 FIG23B is a schematic diagram of another example of determining spectrum resources in a scenario where a ground base station within the satellite coverage area interferes with a satellite base station. If the center frequency of the satellite base station is lower than the center frequency of the TN, then the spectrum boundary of the satellite base station is less than or equal to f boundary +f doppler1 .

[0245] The above considerations are about the scenario of TN interfering with NTN. For NTN, the interference source comes from all base stations within its coverage area. Therefore, after NTN obtains the location information of each base station in TN, NTN can determine the propagation delay t corresponding to the base station farthest and closest to the satellite within its coverage area. max and t min , and the maximum value of the Doppler offsets corresponding to all base stations within the coverage area and minimum value Configure Guard time >= t max Or Guard time <= t min , interference between TN and NTN can be avoided when spectrum resource allocation is updated. or This prevents spectrum overlap caused by Doppler shift, thereby minimizing interference between TNs and NTNs. Configuring guard time and guard band at the cell level further improves resource utilization compared to network-level configuration.

[0246] According to a spectrum resource determination method provided by an embodiment of the present application, in a scenario where a first network and a second network share spectrum resources, Guard time and Guard band are configured at the cell level, thereby improving resource utilization.

[0247] It can be understood that in the above embodiments, the methods and / or steps implemented by the second network can also be implemented by components (such as chips or circuits) that can be used in the second network; the methods and / or steps implemented by the server can also be implemented by components (such as chips or circuits) that can be used in the server.

[0248] The above description primarily describes the solutions provided by the embodiments of the present application from the perspective of interactions between various nodes. Accordingly, the embodiments of the present application also provide a spectrum resource determination device, which is used to implement the various methods described above. The spectrum resource determination device can be the second network in the above method embodiments, or a component that can be used in the second network; alternatively, the spectrum resource determination device can be the server in the above method embodiments, or a component that can be used in the server. It will be understood that, to implement the aforementioned functions, the spectrum resource determination device includes hardware structures and / or software modules corresponding to the respective functions. Those skilled in the art will readily appreciate that, in conjunction with the various exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0249] In the embodiments of the present application, the spectrum resource determination device may be divided into functional modules according to the above-mentioned method embodiments. For example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated modules may be implemented in the form of hardware or software functional modules. 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. In actual implementation, other division methods may be used.

[0250] Based on the same concept of the above spectrum resource determination method, this application also provides the following spectrum resource determination device:

[0251] FIG. 24 is a schematic diagram of the structure of a spectrum resource determination apparatus provided in an embodiment of the present application. The spectrum resource determination apparatus 2400 includes a transceiver unit 2401 and a processing unit 2402.

[0252] When the spectrum resource determination device is used to implement the function of the second network in the above-mentioned method embodiment, the transceiver unit 2401 is used to perform the operation of the second network in S801 in the embodiment as shown in Figure 8, and the processing unit 2402 is used to perform the operation of S802 in the embodiment as shown in Figure 8; or, the transceiver unit 2401 is used to perform the operation of the second network in S1101 in the embodiment as shown in Figure 11; or, the transceiver unit 2401 is used to perform the operation of the second network in S1701 in the embodiment as shown in Figure 17; or, the transceiver unit 2401 is used to perform the operation of the second network in S2001, S2006a or S2006b in the embodiment as shown in Figure 20, and the processing unit 2402 is used to perform the operations of S2002 to S2005 in the embodiment as shown in Figure 20.

[0253] When the spectrum resource determination device is used to implement the functions of the server in the above-mentioned method embodiment, the transceiver unit 2401 is used to perform the operations of the server in S801 in the embodiment as shown in Figure 8; or, the transceiver unit 2401 is used to perform the operations of the server in S1101 in the embodiment as shown in Figure 11; or, the transceiver unit 2401 is used to perform the operations of the server in S1701 in the embodiment as shown in Figure 17; or, the transceiver unit 2401 is used to perform the operations of the server in S2001, S2006a or S2006b in the embodiment as shown in Figure 20.

[0254] For the specific implementation of the above-mentioned transceiver unit 2401 and processing unit 2402, reference may be made to the description in the above-mentioned method embodiment.

[0255] As shown in Figure 25, it is a schematic diagram of the structure of another spectrum resource determination device provided in an embodiment of the present application. The spectrum resource determination device 2500 includes one or more processors 2501 (one processor is illustrated in the figure). Optionally, the spectrum resource determination device 2500 may further include a memory 2503 (indicated by a dotted line in the figure). The memory 2503 is used to store instructions executed by the processor 2501, or to store input data required by the processor 2501 to run instructions, or to store data generated after the processor 2501 runs instructions. Optionally, the spectrum resource determination device 2500 may further include an interface circuit 2502 (indicated by a dotted line in the figure), and the processor 2501 and the interface circuit 2502 are coupled to each other. It can be understood that the interface circuit 2502 can be a transceiver or an input and output interface. The processor 2501 is used to implement the functions of the processing unit 2402 in the embodiment shown in Figure 24 above; and the interface circuit 2502 is used to implement the functions of the transceiver unit 2401 in the embodiment shown in Figure 24 above.

[0256] When the spectrum resource determination device is a chip implemented in the second network, the chip implements the functions of the second network in the above-described method embodiments. The chip receives information from other modules (e.g., a radio frequency module or antenna) in the second network, where the information is sent by the server to the second network; or the chip sends information to other modules (e.g., a radio frequency module or antenna) in the second network, where the information is sent by the second network to the server.

[0257] When the spectrum resource determination device is a chip implemented in a server, the chip implements the server functionality described in the method embodiments. The chip receives information from other modules in the server (e.g., a radio frequency module or antenna), which is information sent by the second network to the server; or sends information to other modules in the server (e.g., a radio frequency module or antenna), which is information sent by the server to the second network.

[0258] In addition, it should be noted that the aforementioned transceiver unit and / or processing unit may be implemented through virtual modules, for example, the processing unit may be implemented through a software function unit or a virtual device, and the transceiver unit may be implemented through a software function or a virtual device. Alternatively, the processing unit or transceiver unit may also be implemented through a physical device, for example, if the device is implemented using a chip / chip circuit, the transceiver unit may be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit is an integrated processor or microprocessor or integrated circuit.

[0259] The division of modules in this application is illustrative and represents only a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the examples of this application may be integrated into a single processor, exist physically as separate modules, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in either hardware or software functional modules.

[0260] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0261] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the method in the above embodiment is implemented.

[0262] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method in the above embodiment.

[0263] An embodiment of the present application further provides a spectrum resource determination system, including the above-mentioned spectrum resource determination device.

[0264] The present application also provides a circuit, which is coupled to a memory and is used to execute the method shown in the above embodiment. The circuit may include a chip circuit.

[0265] When the above-mentioned spectrum resource determination device is a module applied to a base station, the base station module implements the functions of the base station in the above-mentioned method embodiment. The base station module receives information from other modules in the base station (such as a radio frequency module or an antenna), and the information is sent to the base station by the second network; or, the base station module sends information to other modules in the base station (such as a radio frequency module or an antenna), and the information is sent to the second network by the base station. The base station module here can be a baseband chip of a base station, or a CU, DU or other module, or a device under an open radio access network (O-RAN) architecture, such as an open CU, open DU or other devices.

[0266] It should be noted that the above units or one or more of the units can be implemented by software, hardware, or a combination of the two. When any of the above units or units is implemented by software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow.

[0267] In this application, a processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or all or part of the circuitry in the aforementioned devices used to implement processing functions, which may implement or execute the various methods, steps, and logic block diagrams disclosed in this application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in this application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0268] When the above units or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

[0269] Optionally, an embodiment of the present application further provides a chip system, comprising: at least one processor and an interface, wherein the at least one processor is coupled to a memory via the interface, and when the at least one processor executes a computer program or instruction in the memory, the chip system executes the method in any of the above method embodiments. Optionally, the chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.

[0270] The memory in the present application may also be a circuit or any other device capable of implementing a storage function for storing program instructions and / or data. A memory is any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. For example, the memory may be a non-volatile memory, such as a digital versatile disc (DVD), a hard disk drive (HDD), or a solid-state drive (SSD), or a volatile memory, such as a random-access memory (RAM).

[0271] It should be understood that in the description of this application, unless otherwise specified, " / " indicates that the objects associated with each other are in an "or" relationship. For example, A / B can mean A or B; where A and B can be singular or plural. Also, in the description of this application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural. In addition, to facilitate the clear description of the technical solutions of the embodiments of this application, in the embodiments of this application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity or execution order, and words such as "first" and "second" do not necessarily mean different. At the same time, in the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0272] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0273] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0274] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

[0275] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0276] The components in the device of the embodiment of the present application can be merged, divided, or deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments and features of the different embodiments described in this specification.

[0277] In this application, under the premise of no logical contradiction, the examples can reference each other, for example, the methods and / or terms between method embodiments can reference each other, for example, the functions and / or terms between device embodiments can reference each other, for example, the functions and / or terms between device examples and method examples can reference each other.

Claims

1. A method for determining spectrum resources, characterized in that: The method comprises: Receive first configuration information, where the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to a first network in the first spectrum resource, a third spectrum resource corresponding to a second network in the first spectrum resource, a spectrum boundary between the second spectrum resource and the third spectrum resource, a minimum Doppler shift, and a maximum Doppler shift; Determine the spectrum boundary corresponding to the second network, wherein if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift; or if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency of the second network is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift.

2. The method according to claim 1, characterized in that A guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift.

3. The method according to claim 1 or 2, characterized in that The method further comprises: If the third spectrum resources become more than the fourth spectrum resources configured for the second network by the second configuration information, first indication information is received, where the first indication information is used to instruct the second network to use the third spectrum resources for communication after a first time, where the first time is the sum of the second time and a first time interval, and the first time interval is greater than or equal to a maximum propagation delay from the first network to the second network; or If the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, receiving second indication information, wherein the second indication information is used to instruct the second network to use the fifth spectrum resource for communication before a third time, where the third time is the sum of the second time and a second time interval, and the second time interval is less than or equal to a minimum propagation delay from the first network to the second network; The second time is the time when the first configuration information takes effect.

4. The method according to claim 3, characterized in that The first network is a terrestrial network and the second network is a satellite network; or the first network is a satellite network and the second network is a terrestrial network; The maximum propagation delay from the first network to the second network is associated with the maximum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light; The minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light.

5. The method according to any one of claims 1 to 4, characterized in that The maximum Doppler shift and the minimum Doppler shift are associated with the carrier frequency, the moving speed of the satellite, the speed of light, the geocentric angle, the radius of the earth, and the orbital height of the satellite.

6. A method for determining spectrum resources, characterized in that: The method comprises: Send first configuration information, the first configuration information including at least one of the following: a first spectrum resource, a second spectrum resource corresponding to the first network in the first spectrum resource, a third spectrum resource corresponding to the second network in the first spectrum resource, a spectrum boundary between the second spectrum resource and the third spectrum resource, a minimum Doppler shift, and a maximum Doppler shift.

7. The method according to claim 6, characterized in that A guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift.

8. The method according to claim 6 or 7, characterized in that The method further comprises: If the third spectrum resources become more than the fourth spectrum resources configured for the second network by the second configuration information, first indication information is sent, where the first indication information is used to instruct the second network to use the third spectrum resources for communication after a first time, where the first time is the sum of the second time and a first time interval, and the first time interval is greater than or equal to a maximum propagation delay from the first network to the second network; or If the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, second indication information is sent, where the second indication information is used to instruct the second network to use the fifth spectrum resource for communication before a third time, and the third time is the sum of the second time and a second time interval, the second time interval being less than or equal to a minimum propagation delay from the first network to the second network; The second time is the time when the first configuration information takes effect.

9. The method according to claim 8, characterized in that The first network is a terrestrial network and the second network is a satellite network; or the first network is a satellite network and the second network is a terrestrial network; The maximum propagation delay from the first network to the second network is associated with the maximum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light; The minimum propagation delay from the first network to the second network is associated with the minimum distance to the satellite within the coverage area of ​​the satellite cell and the speed of light.

10. The method according to any one of claims 6 to 9, characterized in that The maximum Doppler shift and the minimum Doppler shift are associated with the carrier frequency, the moving speed of the satellite, the speed of light, the geocentric angle, the radius of the earth, and the orbital height of the satellite.

11. A method for determining spectrum resources, characterized in that: The method comprises: Receive first configuration information, where the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to a first network in the first spectrum resource, a third spectrum resource corresponding to a second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource; Acquire location information of the first network and location information of a second network device in the second network; Determine, according to the location information of the first network and the location information of the second network device, a minimum Doppler shift and a maximum Doppler shift respectively corresponding to the second network device; Determine the spectrum boundary corresponding to the second network device, wherein if the center frequency of the third spectrum resource is higher than the center frequency of the second spectrum resource, the minimum frequency of the second network device is greater than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the maximum Doppler shift corresponding to the second network device; or if the center frequency of the third spectrum resource is lower than the center frequency of the second spectrum resource, the maximum frequency corresponding to the second network device is less than or equal to the sum of the spectrum boundary between the second spectrum resource and the third spectrum resource and the minimum Doppler shift corresponding to the second network device.

12. The method according to claim 11, characterized in that The first network includes at least one first network device, and the maximum Doppler shift is a maximum value of at least one maximum Doppler shift of the at least one first network device relative to the second network device; The minimum Doppler shift is a minimum value of at least one minimum Doppler shift of the at least one first network device relative to the second network device.

13. The method according to claim 11 or 12, characterized in that The method further comprises: Determine, according to the location information of the first network and the location information of the second network device, a maximum propagation delay from the first network to the second network device and a minimum propagation delay from the first network to the second network device; If the third spectrum resources become more than the fourth spectrum resources configured for the second network by the second configuration information, first indication information is received, where the first indication information is used to instruct the second network device to use the third spectrum resources for communication after a first time, where the first time is the sum of the second time and a first time interval, and the first time interval is greater than or equal to a maximum propagation delay from the first network to the second network device; or If the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, receiving second indication information, wherein the second indication information is used to instruct the second network device to use the fifth spectrum resource for communication before a third time, the third time being the sum of the second time and a second time interval, and the second time interval is less than or equal to a minimum propagation delay from the first network to the second network device; The second time is the time when the first configuration information takes effect.

14. The method according to claim 13, characterized in that The first network includes at least one first network device, and the maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device respectively; The minimum propagation delay from the first network to the second network device is a minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

15. A method for determining spectrum resources, characterized in that: The method comprises: Sending first configuration information, where the first configuration information includes at least one of the following: a first spectrum resource, a second spectrum resource corresponding to a first network in the first spectrum resource, a third spectrum resource corresponding to a second network in the first spectrum resource, and a spectrum boundary between the second spectrum resource and the third spectrum resource; If the third spectrum resources become more than the fourth spectrum resources configured for the second network by the second configuration information, first indication information is sent, wherein the first indication information is used to instruct the second network device in the second network to use the third spectrum resources for communication after a first time, wherein the first time is the sum of the second time and the first time interval, and the first time interval is greater than or equal to the maximum propagation delay from the first network to the second network device; or If the third spectrum resource becomes less than the fifth spectrum resource configured for the second network by the third configuration information, sending second indication information, wherein the second indication information is used to instruct the second network device to use the fifth spectrum resource for communication before a third time, where the third time is the sum of the second time and a second time interval, and the second time interval is less than or equal to a minimum propagation delay from the first network to the second network device; The second time is the time when the first configuration information takes effect.

16. The method according to claim 15, characterized in that The first network includes at least one first network device, and the maximum Doppler shift is a maximum value of at least one maximum Doppler shift of the at least one first network device relative to the second network device; The minimum Doppler shift is a minimum value of at least one minimum Doppler shift of the at least one first network device relative to the second network device.

17. The method according to claim 15 or 16, characterized in that The first network includes at least one first network device, and the maximum propagation delay from the first network to the second network device is the maximum value of at least one maximum propagation delay from the at least one first network device to the second network device respectively; The minimum propagation delay from the first network to the second network device is a minimum value of at least one minimum propagation delay from the at least one first network device to the second network device.

18. A spectrum resource determination device, characterized in that: The apparatus comprises means for performing the method of any one of claims 1-17.

19. A spectrum resource determination system, characterized in that: It comprises a first spectrum resource determination device and a second spectrum resource determination device, the first spectrum resource determination device is used to execute the method as described in any one of claims 1-5 and 11-14, and the second spectrum resource determination device is used to execute the method as described in any one of claims 6-10 and 15-17.

20. A spectrum resource determination device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 17 when executing the computer program.

21. A computer-readable storage medium, wherein a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed, the method according to any one of claims 1 to 17 is executed.

22. A computer program product, characterized in that The computer program product comprises program instructions, and when the program instructions are executed, the method according to any one of claims 1 to 17 is implemented.

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