Spectrum resource determination method, device and system and storage medium

Abstract

The invention discloses a spectrum resource determination method, device and system and a storage medium. A server configures at least one of 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. The second network can accurately determine the spectrum boundary corresponding to the second network according to the configuration, so that the configuration of the interval frequency band is realized, spectrum overlapping caused by Doppler shift can be avoided, and interference between the first network and the second network is further avoided.

Description

Technical Field

[0001] 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

[0002] With the booming development of low earth orbit (LEO) satellite communications, spectrum resources will be quickly occupied and gradually become scarce. In order to expand bandwidth, LEO satellite communications attempt to seek co-construction and sharing on the spectrum resources of international mobile telecommunications (IMT) or geostationary earth orbit (GEO). Spectrum co-construction and sharing can improve resource utilization and reduce construction costs, but it is necessary to solve the co-frequency / adjacent frequency interference problem between non-terrestrial communication networks (NTN) (also known as satellite networks) and terrestrial networks (TN).

[0003] 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, resulting in mutual interference. However, for satellite-to-ground scenarios, it is 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.

[0004] In addition, the current satellite-ground dynamic spectrum sharing scheme does not provide details to prevent mutual interference between TN and NTN. Summary of the invention

[0005] The present application provides a spectrum resource determination method, device, 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.

[0006] In a first aspect, a method for determining spectrum resources is provided, wherein the method is implemented by a second network or a chip or circuit used for the second network.

[0007] The method includes: receiving 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 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 a 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. By adopting this method, the second network can accurately determine the spectrum boundary corresponding to the second network according to the configuration, realize the configuration of the interval frequency band, avoid the spectrum overlap caused by the Doppler shift, and thus avoid the interference between the first network and the second network.

[0008] In a possible implementation, the guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift. With this implementation, the guard band configuration is implemented, which can avoid spectrum overlap caused by Doppler shift, thereby avoiding interference between the first network and the second network.

[0009] In another possible implementation, the method further includes: if the third spectrum resource becomes more than the fourth spectrum resource configured for the second network by the second configuration information, receiving first indication information, the first indication information is used to indicate that the second network uses the third spectrum resource for communication after a 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; 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 is used to indicate that the second network uses the fifth spectrum resource for communication before a third time, 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 the 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, and interference between the first network and the second network can be avoided through this configuration.

[0010] 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 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.

[0011] In another possible implementation, the maximum Doppler shift and the minimum Doppler shift are associated with a carrier frequency, a moving speed of a satellite, a speed of light, a geocentric angle, a radius of the earth, and an orbital altitude of the satellite.

[0012] In a second aspect, a method for determining spectrum resources is provided, wherein the method is implemented by a server or a chip or circuit for a server.

[0013] 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 according to the configuration, thereby realizing the configuration of the interval frequency band, avoiding the spectrum overlap caused by the Doppler shift, and thus avoiding the interference between the first network and the second network.

[0014] In a possible implementation, the guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift. With this implementation, the guard band configuration is implemented, which can avoid spectrum overlap caused by Doppler shift, thereby avoiding interference between the first network and the second network.

[0015] In another possible implementation, the method further includes: 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 is used to indicate that the second network uses the third spectrum resource for communication after a 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; 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 is used to indicate that the second network uses the fifth spectrum resource for communication before a third time, 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 the 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, and interference between the first network and the second network can be avoided through this configuration.

[0016] 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 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.

[0017] In another possible implementation, the maximum Doppler shift and the minimum Doppler shift are associated with a carrier frequency, a moving speed of a satellite, a speed of light, a geocentric angle, a radius of the earth, and an orbital altitude of the satellite.

[0018] According to a third aspect, a method for determining spectrum resources is provided, wherein the method is implemented by the second network or a chip or circuit used for the second network.

[0019] The method includes: receiving 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 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 the location information of the first network and the location information of a second network device in the second network; determining 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; 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. By adopting this method, in the scenario where the first network and the second network share spectrum resources, the time interval and interval frequency band are configured at the cell level, thereby improving resource utilization.

[0020] In a 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; 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.

[0021] 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 according to the location information of the first network and the location information of the second network device; if the third spectrum resources become more relative to 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 relative to 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.

[0022] 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.

[0023] In a fourth aspect, a method for determining spectrum resources is provided, wherein the method is implemented by a server or a chip or circuit for a server.

[0024] 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 is used to indicate that the second network device in the second network uses the third spectrum resource for communication after a 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 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 is used to indicate that the second network device uses the fifth spectrum resource for communication before a third time, 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 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.

[0025] In a 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; 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.

[0026] 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.

[0027] In a fifth aspect, a spectrum resource determination device is provided, which is used to implement 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, a chip, or a chip system, etc.), or a logical node, a logical module, or software that can implement all or part of the functions of the second network. 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").

[0028] In a sixth aspect, a spectrum resource determination device is provided, which is used to implement the spectrum resource determination method in the above-mentioned second aspect, fourth aspect, or any one of the implementations of the second aspect and the fourth aspect. 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").

[0029] 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.

[0030] 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.

[0031] Optionally, a guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift.

[0032] Optionally, the transceiver unit is also 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, and the first indication information is used to instruct the second network to use the third spectrum resources 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 also 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, and the second indication information is used to instruct the second network to use the fifth spectrum resources 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 time of the first configuration information.

[0033] 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.

[0034] Optionally, 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.

[0035] Among them, 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.

[0036] Optionally, a guard band between the second spectrum resource and the third spectrum resource is greater than or equal to the maximum Doppler shift.

[0037] Optionally, the transceiver unit is also used to send 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 also used to send 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 time of the first configuration information.

[0038] 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.

[0039] Optionally, 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.

[0040] 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, based on the location information of the first network and the location information of the second network device, 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.

[0041] 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.

[0042] 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 according to 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 relative to 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 relative to 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.

[0043] 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.

[0044] Among them, 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 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 time of the first configuration information.

[0045] 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.

[0046] 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.

[0047] 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 implement the device to perform the corresponding functions in the above-mentioned spectrum resource determination method. The memory is used to couple with the processor, which stores the necessary programs (instructions) and / or data for the device. Optionally, the spectrum resource determination device may also include a communication interface for implementing 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.

[0048] In another possible implementation, the spectrum resource determination device in the fifth to sixth aspects includes a processor and a transceiver, the processor is coupled to the transceiver, and the processor is 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 execute code instructions. The transceiver may be a transceiver, a transceiver circuit or an input-output interface, which is used to receive signals from other spectrum resource determination devices other than the spectrum resource determination device and transmit them to the processor or 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.

[0049] When the spectrum resource determination device in the fifth to 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; the receiving unit may be a receiver or a receiver.

[0050] In a seventh aspect, a computer-readable storage medium is provided, wherein a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed, the methods described in the above aspects are implemented.

[0051] 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 executes the methods described in the above aspects.

[0052] In a ninth aspect, a spectrum resource determination system is provided, the communication system comprising 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

[0053] Figure 1A simplified schematic diagram of a wireless communication system provided by an embodiment of the present application;

[0054] Figure 2A The schematic diagram of NTN scenario based on transparent load;

[0055] Figure 2B Schematic diagram of NTN scenario based on regenerative load;

[0056] Figure 3A Schematic diagram of low-orbit satellite interference with ground terminal equipment;

[0057] Figure 3B Schematic diagram of ground terminal equipment interfering with low-orbit satellites;

[0058] Figure 4 Schematic diagram of instantaneous dynamic spectrum sharing between LTE FDD and NR;

[0059] Figure 5 Schematic diagram of uplink spectrum resource coordination in LNR;

[0060] Figure 6 Schematic diagram of the misalignment of radio frames between LTE cell and NR cell;

[0061] Figure 7 This is a schematic diagram of satellite-ground spectrum sharing;

[0062] Figure 8 A flowchart of a spectrum resource determination method provided in an embodiment of the present application;

[0063] Fig. 9 This is a schematic diagram of the calculation of Doppler shift;

[0064] Fig. 10A A schematic diagram of an example for determining spectrum resources;

[0065] Fig. 10B A schematic diagram of another example for determining spectrum resources;

[0066] Fig.11 A flowchart of another spectrum resource determination method provided in an embodiment of the present application;

[0067] Fig.12 A schematic diagram for updating spectrum resource configuration of a first network and a second network;

[0068] Fig.13 A schematic diagram of an example of resource usage after configuring an update for spectrum resources;

[0069] Fig.14 Another schematic diagram of updating the spectrum resource configuration of the first network and the second network;

[0070] Fig.15 A schematic diagram of another example of resource usage after configuring updated spectrum resources;

[0071] Fig.16 This is a schematic diagram of satellite-to-ground signal propagation;

[0072] Fig.17 A flowchart of another spectrum resource determination method provided in an embodiment of the present application;

[0073] Fig.18A Another schematic diagram of updating the spectrum resource configuration of the first network and the second network;

[0074] Fig.18B A schematic diagram of another example of resource usage after configuring updated spectrum resources;

[0075] Fig.19A Another schematic diagram of updating the spectrum resource configuration of the first network and the second network;

[0076] Fig.19B A schematic diagram of another example of resource usage after configuring updated spectrum resources;

[0077] Fig. 20 A flowchart of another spectrum resource determination method provided in an embodiment of the present application;

[0078] Fig.21 A schematic diagram of another example of spectrum resource determination;

[0079] Fig.22A A schematic diagram of an example of determining spectrum resources in a scenario where a satellite interferes with a ground base station;

[0080] Fig. 22B A schematic diagram of another example of determining spectrum resources in a scenario where a satellite interferes with a ground base station;

[0081] Fig.23A A schematic diagram of an example of determining spectrum resources in a scenario where a ground base station within a satellite coverage area interferes with a satellite base station;

[0082] Fig. 23B A schematic diagram of another example of determining spectrum resources in a scenario where a ground base station within a satellite coverage area interferes with a satellite base station;

[0083] Fig.24 A schematic diagram of the structure of a spectrum resource determination device provided in an embodiment of the present application;

[0084] Fig.25 A schematic diagram of the structure of another spectrum resource determination device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0085] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0086] The at least one (item) involved in the present application as follows 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 objects associated before and after 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 the present application, these objects should not be limited to these terms. These terms are only used to distinguish each object from each other.

[0087] The terms "including" and "having" and any variations thereof mentioned in the following description of the present 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 optionally includes other steps or units that are not listed, or optionally includes other steps or units that are inherent to these processes, methods, products or devices. It should be noted that in the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any method or design described as "exemplary" or "for example" in the present application 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.

[0088] The technology provided by the present application can be applied to various communication systems. For example, the communication system can be a fourth generation (4 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.

[0089] 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 may also be replaced by an entity, a network entity, a device, a terminal device, a communication module, a node, a communication node, etc. The network element is used as an example for description in this application. For example, a communication system may include at least one terminal device and at least one access network device. The access network device may send a downlink signal to the terminal device, and / or the terminal device may send an uplink signal to the access network device. In addition, it can be understood that if a plurality of terminal devices are included in the communication system, the plurality of terminal devices may also send signals to each other, that is, the signal sending network element and the signal receiving network element may both be terminal devices.

[0090] 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 communication. Figure 1 , Figure 1 A simplified schematic diagram of a wireless communication system provided in an embodiment of the present application. Figure 1 As shown, the wireless communication system includes a wireless access network 100. The wireless access network 100 may 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) may be connected to each other, or to one or more network devices (110a-110c, collectively referred to as 110) in the wireless access network 100, and the connection mode may be wired or wireless. Optionally, Figure 1 This is just a schematic diagram. The wireless communication system may also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices. Figure 1 Not drawn in.

[0091] Optionally, in practical applications, the wireless communication system may include multiple network devices (also referred to as access network devices) at the same time, and may also include multiple terminal devices at the same time. A network device may serve one or more terminal devices at the same time. A terminal device may also access one or more network devices at the same time. The embodiment of the present application does not limit the number of terminal devices and network devices included in the wireless communication system.

[0092] 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 the following various names, 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 (transmitting and receiving point, TRP), transmission point (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, 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 The 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. The network device may also refer to a communication module, a modem or a chip that is arranged in the aforementioned device or apparatus. The network device may also be a mobile switching center and a device that performs the base station function in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network side device in a 6G network, and a device that performs the base station function in future communication systems. 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.

[0093] The network equipment may be fixed or mobile. For example, the base stations 110 b and 110 c are stationary and are responsible for wireless transmission and reception in one or more cells from the terminal equipment 120 . Figure 1 The helicopter or drone 120c shown in the figure 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 be used as a terminal device communicating with the satellite base station 110a.

[0094] In the present application, the spectrum resource determination device for implementing the above access network function may be an access network device, or a network device having some functions of the access network, or a device capable of supporting the implementation of the access network function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, and the device may be installed in the access network device or used in combination with the access network device. In the method of the present application, the spectrum resource determination device for implementing the access network device function is described as an access network device.

[0095] The terminal device can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can be used to connect people, objects and machines. The terminal device can communicate with one or more core networks through a network device. The terminal device includes a handheld device with a wireless connection function, other processing devices connected to a wireless modem, or a vehicle-mounted device. The terminal device can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device. The terminal device 120 can 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 wear, smart transportation, smart city, drone, robot, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery and mobility, etc.Some examples of the terminal device 120 are: user equipment (UE) of 3GPP standard, fixed equipment, mobile equipment, handheld equipment, wearable equipment, cellular phone, smart phone, session initiation protocol (SIP) phone, laptop, personal computer, smart book, vehicle, satellite, global positioning system (GPS) equipment, target tracking equipment, drone, helicopter, aircraft, ship, remote control equipment, smart home equipment, industrial equipment, personal communication service (PCS) phone, wireless local loop (WLL) station, personal digital assistant (PDA), wireless network camera, tablet computer, PDA, mobile internet device (MID), wearable equipment such as smart watch, VR equipment, AR equipment, wireless terminal in industrial control, terminal in vehicle networking system, wireless terminal in self driving, wireless terminal in smart grid, wireless terminal in transportation safety, smart city, etc. The terminal device 120 may be a wireless terminal in a smart 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 used to be 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.

[0096] Optionally, the terminal device may be used to act as a base station. For example, the UE may act as a scheduling entity that provides sidelink signals between UEs in V2X, D2D, or P2P, etc. Figure 1As shown, the cell phone 120a and the car 120b communicate with each other using a sidelink signal. The cell phone 120a and the smart home device 120e communicate with each other without relaying the communication signal through the base station 110b.

[0097] In the present application, the spectrum resource determination device for implementing the functions of the terminal device may be a terminal device, or a terminal device having some of the functions of the above terminal device, or a device capable of supporting the implementation of the functions of the above terminal device, such as a chip system, which may be installed in the terminal device or used in combination with the terminal device. In the present application, the chip system may be composed of a chip, or may include a chip 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.

[0098] Optionally, a wireless communication system is usually composed of cells, and the base station provides management of the cell. The base station provides 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 places, for example: the RRU is remote and placed in an area with high traffic volume, and 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 one rack. Optionally, a cell can correspond to a carrier or a component carrier.

[0099] In some deployments, the network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit control plane (central unit-control plane, CU-CP)) and a user plane CU node (central unit user plane (central unit-user plane, CU-UP)) and a DU node. For example, the network device may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0100] In some deployments, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, and different RAN nodes implement part of the functions of the base station. For example, the RAN node can be a CU, DU, CU-CP, CU-UP, or RU. The CU and DU can be set separately, or can also be included in the same network element, such as a BBU. The RU can be included in a radio frequency device or a radio frequency unit, such as an RRU, AAU, or RRH.

[0101] The RAN node may support one or more types of fronthaul interfaces, and different fronthaul interfaces correspond 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 interface, relative to the CPRI, part of the downlink and / or uplink baseband functions, such as, for downlink, one or more of precoding, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP), 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) / removing cyclic prefix (CP), are moved from the DU to the RU for implementation. In a possible implementation, the interface may be an enhanced common public radio interface (eCPRI). In the eCPRI architecture, the division between DU and RU is different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, F.

[0102] 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 before it (i.e., one or more functions of coding, rate matching, scrambling, modulation, and layer mapping), while other functions after layer mapping (e.g., RE mapping, digital beamforming (BF), or one or more functions of inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP)) are moved to the RU for implementation. For uplink transmission, based on de-RE mapping, the DU is configured to implement de-mapping and one or more functions before it (i.e., one or more functions of decoding, de-rate matching, de-scrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and de-RE mapping), while other functions after de-mapping (e.g., one or more functions of digital BF or fast Fourier transform (FFT) / removing CP) are moved to the RU for implementation. It can be understood that for the functional description of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol and will not be repeated here.

[0103] In one possible design, the processing unit for implementing the baseband function in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing the baseband function in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0104] 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 in the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0105] In the embodiments of the present application, the device for realizing the function of the network device may be a network device; or it may be a device capable of supporting the network device to realize the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module. The device may be installed in the network device or used in combination with the network device. In the embodiments of the present application, only the device for realizing the function of the network device is a network device as an example for explanation, and the scheme of the embodiments of the present application is not limited.

[0106] It can be understood that the present application can be applied between network devices and terminal devices.

[0107] 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 protocol layers such as 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 protocol layers such as the PDCP layer, the RLC layer, the MAC layer and the physical layer. In a possible implementation, the service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

[0108] Optionally, the protocol layer structure between the network device and the terminal device may also include an artificial intelligence (AI) layer for transmitting data related to AI functions.

[0109] Taking data transmission between network devices and terminal devices as an example, data transmission needs to pass through the user plane protocol layer, such as the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer. Among them, the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer can also be collectively referred to as the access layer. According to the transmission direction of the data, it is divided into sending or receiving, and each of the above layers is 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 the MAC layer, and then the MAC layer generates a transmission block, and then transmits it wirelessly through the physical layer. The data is encapsulated accordingly in each layer. For example, the data received by a layer from the upper layer of the layer is regarded as the service data unit (SDU) of the layer, which becomes a protocol data unit (PDU) after being encapsulated by the layer, and then passed to the next layer.

[0110] Exemplarily, the terminal device may also have an application layer and a non-access layer. The application layer may be used to provide services to applications installed in the terminal device. For example, the downlink data received by the terminal device may be sequentially transmitted from the physical layer to the application layer, and then provided to the application by the application layer; for another example, the application layer may obtain data generated by the application, and sequentially transmit the data to the physical layer, and send it to other spectrum resource determination devices. The non-access layer may 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.

[0111] It should be understood that Figure 1 The number and type of each device in the communication system shown are for illustration only, and the present application is not limited thereto. 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.

[0112] 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 used to implement 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, the terminal equipment and the access network equipment involve interfaces for air interface transmission, and 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 used to implement artificial intelligence functions can be implemented by cloud devices, such as cloud devices in over the top (OTT) systems.

[0113] The following first introduces several concepts that may be involved in this application:

[0114] (1) NTN network:

[0115] NTN network refers to a network that uses radio frequency resources on satellites (or unmanned aircraft system (UAS) platforms, high altitude platform stations (HAPS)). Compared with ground cellular networks (such as 5G mobile communication systems), NTN networks have the characteristics of wide coverage, low latency, broadband and low cost. As a supplement and extension of the ground network, the NTN network can achieve wide-area seamless coverage that neither the wired telephone network nor the ground mobile communication network can achieve, effectively solving the problem of Internet access in areas with insufficient communication infrastructure. A large number of satellites are deployed in low-Earth orbit, and the round-trip transmission delay of data between satellites and ground terminals is greatly reduced, reaching a low latency of tens of milliseconds. The use of technologies such as high frequency bands, multi-spot beams and frequency reuse has significantly improved the communication capabilities of satellites, reduced the unit broadband cost, and can meet the needs of high information rate services. Compared with communication infrastructure such as ground 5G base stations and submarine optical fiber cables, NTN has significant cost advantages. Modern small satellites have low R&D and manufacturing costs, and software-defined technology can further extend the service life of satellites in orbit. NTN networks can be used in scenarios such as global coverage (such as remote areas, ocean-going ships, etc.), emergency relief (such as disaster monitoring, emergency communications), the Internet of Everything, and high-speed mobility (such as high-speed rail and airplanes).

[0116] Typical scenarios for NTN network to provide terminal device access include transparent payload and regenerative payload. Figure 2AThe NTN scenario diagram based on transparent load is shown in the figure. The transparent load is a load that changes the frequency carrier of the uplink RF signal and filters and amplifies it before downlink transmission. This load only has a RF processing unit and no baseband demodulation, decoding and other processing. Therefore, the signal waveform is unchanged and is repeated. Figure 2B The schematic diagram of the NTN scenario based on the regenerative load shown is a load that transforms and amplifies the uplink radio frequency (RF) signal before downlink transmission. The signal transformation refers to digital processing, which may include demodulation, decoding, re-encoding, re-modulation and / or filtering. This is actually equivalent to having all or part of the base station functions on the satellite (or UAS platform).

[0117] The above-mentioned NTN network usually has the following elements:

[0118] (1) There are one or more gateways connecting the NTN network and the common data network.

[0119] (2) Feeder link: The wireless link between the gateway and the satellite (or UAS platform).

[0120] (3) Service link: The wireless link between the terminal device and the satellite (or UAS platform).

[0121] (4) Satellites (or UAS platforms) can realize transparent payloads and regenerative payloads.

[0122] (5) Whether the satellite constellation has an inter-satellite link (ISL) is optional. An ISL requires the satellite to be a regenerative payload (i.e., if there is an ISL, the satellite must be a regenerative payload). ISLs can operate in RF frequencies or optical bands.

[0123] (6) The terminal device is served by a satellite (or UAS platform) within the target service area.

[0124] (II) Satellite spectrum:

[0125] Satellite communication works in the microwave frequency band, which has a frequency range of 1GHz to 40GHz. According to the frequency band, it can be divided into: L, S, C, X, Ku, K, Ka. Different frequency bands have different uses. Among them, the K band is not suitable for satellite communication because it is in the frequency window with the greatest impact of atmospheric absorption loss. Therefore, the commonly used satellite communication frequency bands are: L, S, C, X, Ku, Ka.

[0126] The L and S bands are used for satellite mobile communications, i.e., common handheld satellite phones. The C band has a relatively low frequency, so the signal coverage is large and is less affected by weather. It is often used for private network communications and cross-border dedicated lines of government and enterprises, as well as content distribution of TV stations. The X band is a regulated band, usually used by government and military departments, and cannot be used for civilian and commercial purposes. The Ku band has a relatively high frequency and is easily affected by the antenna, causing signal fluctuations, but its signal strength is higher than that of the C band, so the aperture of the ground receiving antenna is much smaller, usually as small as 0.35 meters in diameter, which is very suitable for satellite TV live broadcast to the home. The Ka band has been put into use in recent years. Since the C and Ku bands are almost saturated and cannot carry more services, people have begun to look for higher-frequency Ka bands. The higher the frequency band, the more bandwidth resources it has and the more business capacity it can support. In recent years, with the surge in demand for satellite Internet access, people have begun to turn their attention to the higher-frequency Ka band. Although it is more susceptible to weather than the Ku band, its larger working bandwidth, higher signal strength, and smaller antenna aperture make it more valuable for development.

[0127] With the vigorous development of LEO satellite communications, frequency bands such as Ku / Ka / Q / V have become hot spots for satellite communications applications, and spectrum resources will be quickly occupied and gradually scarce. In order to expand bandwidth, LEO satellite communications attempt to seek co-construction and sharing on the spectrum resources of international mobile telecommunications (IMT) or geostationary orbit (GEO).

[0128] (III) Interference between systems

[0129] Spectrum co-construction and sharing can improve resource utilization and reduce construction costs, but it is necessary to solve the problem of co-frequency / adjacent frequency interference between satellite networks and terrestrial cellular networks. Inter-system interference can be divided into downlink interference and uplink interference according to the signal direction.

[0130] Downlink interference has the following characteristics:

[0131] (1) Few interference sources. Take low-orbit satellites interfering with ground terminals as an example. Figure 3A The schematic diagram of low-orbit satellite interference with ground terminal equipment is shown. The main interference source is satellite 1 covering this terminal. The interference of satellite 2 to this terminal mainly comes from the side lobe, and the path loss is larger, so the interference level is lower.

[0132] (2) Since ground base stations / low-orbit satellites are closer to terminal devices, the interference is stronger.

[0133] Uplink interference has the following characteristics:

[0134] (1) Multiple interference sources: For example, ground terminals interfere with low-orbit satellites. Figure 3B The schematic diagram of ground terminal equipment interfering with a low-orbit satellite is shown, and the interference sources are all ground terminals within the visible range of the satellite;

[0135] (2) Aggregate interference is strong: The main interference source is the terminal near the main lobe of the satellite beam, and the satellite receiving gain is large at this time;

[0136] (3) Beam level: For a single-satellite multi-beam scenario, different beam directions of the satellite are subject to different interference.

[0137] Regarding the co-construction and sharing of spectrum resources, in the early stage of 5G construction, some operators did not have independent NR spectrum resources, which made it impossible to deploy 5G networks; while some operators had independent NR spectrum resources, but due to the low penetration rate of 5G terminals in the early stage, they also faced the problem of low spectrum utilization. The Long Term Evolution-New Radio (LTE-NR, LNR) feature solves this problem by sharing spectrum between LTE and NR.

[0138] like Figure 4 The schematic diagram of LTE frequency division duplex (FDD) and NR instantaneous dynamic spectrum sharing is shown. The granularity of LTE FDD and NR instantaneous dynamic spectrum sharing reaches 1 ms in the time domain, and the sharing granularity in the frequency domain is 1 resource block (RB).

[0139] LNR avoids interference and conflict problems in the sharing process by coordinating the scheduling of uplink and downlink physical channels and signal resources. The coordination of uplink spectrum resources is to coordinate and schedule the spectrum resources occupied by each uplink physical channel in a unified manner. Figure 5 The diagram of uplink spectrum resource coordination in LNR is shown. Among them, the PUCCH position of NR is symmetrically fixed at the two ends of the frequency domain. The PUCCH of LTE is symmetrically deployed at both ends of the frequency domain following the PUCCH of NR. The PRACH of LTE is deployed at the low frequency end following the PUCCH of LTE, and the PRACH of NR is deployed at the high frequency end following the PUCCH of LTE. The PUSCH of LTE and NR is dynamically shared according to the service priority and spectrum priority.

[0140] The coordination of downlink spectrum resources is mainly achieved by setting the priorities of different physical channels and signals. When resources conflict, high-priority channels or signals are retained, specifically: synchronized broadcast channels and signals (SS, PBCH) > reference signals (DMRS, CSI-RS, CRS (LTE only), PT-RS (NR only)) > control channels (PDCCH) > traffic channels (PDSCH). Channels or signals of the same type avoid each other in a static or dynamic manner. Taking the processing of some channels and signals as an example: LTE's PDSCH actively avoids NR's SSB (SS / PBCH), NR's PDSCH actively avoids LTE's CRS, and LTE and NR's PDCCH and PDSCH dynamically share resources on demand.

[0141] However, LNR requires that the LTE cells and NR cells participating in spectrum sharing meet the requirement of complete alignment of radio frames and subframes. If the subframes are not aligned, there will be spectrum overlap, resulting in mutual interference, such as Figure 6 Schematic diagram showing misalignment of radio frames between LTE cell and NR cell.

[0142] However, for satellite-to-ground scenarios, it is 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.

[0143] At present, a satellite-ground dynamic spectrum sharing scheme has been proposed, such as Figure 7 The schematic diagram of satellite-ground spectrum sharing is shown in Figure 1. The main ideas are as follows:

[0144] (1) Control signaling is sent on fixed spectrum resources of each network;

[0145] (2) Some RBs form guard bands to prevent mutual interference between TN and NTN;

[0146] (3) Since TN and NTN are not synchronized, a time interval (Guardtime) needs to be set when updating spectrum resources to prevent mutual interference between TN and NTN;

[0147] (4) The spectrum management server (SMS) determines spectrum resource allocation based on network load.

[0148] This spectrum sharing solution does not require precise synchronization between NTN and TN and can be used in satellite-to-ground spectrum sharing scenarios, but it does not specify the configuration method of the Guard band. Furthermore, it does not specify the configuration method of the Guard time.

[0149] To this end, an embodiment of the present application provides a spectrum resource determination scheme, wherein 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. 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 the spectrum overlap caused by the Doppler shift, and further avoiding interference between the first network and the second network.

[0150] The following is based on Figure 1 The communication system shown describes the spectrum resource determination method provided by the present application:

[0151] 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 of the information being the second network. It can include directly or indirectly sending information to the second network. "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 of the information being the second network, which can include directly or indirectly receiving information from the second network. The information may be processed as necessary between the source and destination of the information transmission, such as format changes, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be repeated here.

[0152] The spectrum resource determination method provided in 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, a chip system, or a processor applied to the second network, or a logical node, a logical 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, a chip system, or a processor applied to the server, or a logical node, a logical module, or software that can implement all or part of the server function.

[0153] like Figure 8 FIG. 1 is a flow chart of a spectrum resource determination method provided in an embodiment of the present application. Exemplarily, the method may include the following steps:

[0154] S801. The server sends first configuration information to the second network. Correspondingly, the second network receives the first configuration information.

[0155] Exemplarily, the server in this embodiment may be SMS.

[0156] In this embodiment, the first network and the second network share the first spectrum resource, and the communication in the first network may cause interference to the second network. For example, the first network may be TN and the second network may be NTN; or the first network may be NTN and the second network may be TN.

[0157] The first network and the second network share spectrum resources, and the communication in the first network may cause interference to the second network. The second network needs to determine the spectrum boundary corresponding to the second network to avoid interference from the first network.

[0158] Before determining the spectrum boundary corresponding to the second network, first, the server sends first configuration information to the second network. Further, the server may also send the first configuration information to the first network.

[0159] 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.

[0160] The first spectrum resource is a spectrum resource shared by the first network and the second network, and the server configures the second spectrum resource in the first spectrum resource to the first network for use, and configures the third spectrum resource in the first spectrum resource to the second network for use. Exemplarily, the granularity of the spectrum resource can be RB, resource block group (RBG), frequency range, etc.

[0161] 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 .

[0162] The server also configures the minimum Doppler shift 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.

[0163] like Fig. 9 The calculation diagram of Doppler shift is shown in Figure 1, where the small circle represents the earth and the large circle represents the orbit of the satellite. Assuming that the edge point of the satellite cell coverage is M, the corresponding maximum Doppler shift is in u is the ground, the heart 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.

[0164] S802. The second network determines a spectrum boundary corresponding to the second network.

[0165] The second network determines the spectrum boundary corresponding to the second network, which is divided into the following two cases:

[0166] 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, Guard band>=fd max .

[0167] like Fig. 10A FIG. 1 is a schematic diagram of an example of determining spectrum resources, assuming 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, then Guard band>=fd max .

[0168] 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, Guard band>=fd max .

[0169] like Fig. 10B FIG. 1 is a schematic diagram of another example of determining spectrum resources, assuming 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 Guard band>=fd max .

[0170] 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. 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 the spectrum overlap caused by the Doppler shift, and further avoiding interference between the first network and the second network.

[0171] The above embodiment describes the configuration of the Guard band. The following embodiment will describe the configuration of the Guard time. The following embodiment can be implemented alone or in combination with the above embodiment of the configuration of the Guard band.

[0172] According to whether the third spectrum resource configured by the server for the second network is increased or decreased relative to the spectrum resource previously configured by the server for the second network, Fig.11 and Fig.17 The embodiments shown are described separately:

[0173] like Fig.11 As shown, it 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 more than the fourth spectrum resource previously configured by the server for the second network. Exemplarily, the method may include the following steps:

[0174] S1101. The server sends first indication information to the second network. Correspondingly, the second network receives the first indication information.

[0175] The server configures a portion of the first spectrum resource to the first network and the second network respectively, that is, the first network and the second network share the first spectrum resource. The spectrum resources configured by the server for the second network may change in different time periods. For example, in this embodiment, the third spectrum resource currently configured by the server for the second network is more than the fourth spectrum resource previously configured by the server for the second network (configured by the second configuration information).

[0176] This embodiment does not require frame-level synchronization between the first network and the second network.

[0177] When the configuration of the server 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.

[0178] For example, the first network is TN and the second network is NTN. Fig.12The schematic diagram of the spectrum resource configuration update of the first network and the second network shown in the figure, TN and NTN share the first spectrum resource, the left side of the dotted line is the spectrum resource configuration before the configuration update, and the right side of the dotted line is the spectrum resource configuration after the configuration update. The spectrum resources currently configured to TN are changed from more to less relative to the spectrum resources previously configured to TN, and the spectrum resources currently configured to NTN are changed from less to more relative to the spectrum resources previously configured to NTN. Among them, the spectrum resource configuration update occurs at the second time t0, that is, the second time is the effective time of the server configuration. The server can also indicate the second time to TN and NTN.

[0179] The server also indicates to the NTN a first time interval Guard time>=t max NTN can also configure Guard time>=t according to the base station location information max . And TN can use the new spectrum resource (i.e., the second spectrum resource) for communication after t0, while NTN continues to use the old spectrum resource (i.e., the fourth spectrum resource) for communication. Fig.13 The schematic diagram of an example of resource usage after the spectrum resource configuration is updated shows that the server indicates that the NTN can use the new spectrum resource (third spectrum resource) for communication after the first time, wherein the first time is the sum of the second time and the first time interval, that is, the first time is t0+Guard time.

[0180] 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 The new spectrum resources were 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. Configure Guardtime>=t max ,NTN uses new spectrum resources for communication after t0+Guard time, which can avoid interference.

[0181] For example, the first network is NTN and the second network is TN. Fig.14 Another schematic diagram of the spectrum resource configuration update of the first network and the second network is shown. TN and NTN share the first spectrum resource. The left side of the dotted line is the spectrum resource configuration before the configuration update, and the right side of the dotted line is the spectrum resource configuration after the configuration update. The spectrum resources currently configured to NTN are changed from more to less relative to the spectrum resources previously configured to NTN, and the spectrum resources currently configured to TN are changed from less to more relative to the spectrum resources previously configured to TN. Among them, the spectrum resource configuration update occurs at the second time t0, that is, the second time is the effective time of the server's configuration. The server can also indicate the second time to TN and NTN.

[0182] The server also indicates to TN the first time interval Guard time>=t max TN can also configure Guard time>=t according to the 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. Fig.15 The schematic diagram of another example of resource usage after the spectrum resource configuration is updated is shown, and the server indicates that the TN can use the new spectrum resource (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.

[0183] 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 were 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. Configure Guardtime>=t max , TN uses new spectrum resources for communication after t0+Guard time to avoid interference.

[0184] For example, the above t max It can be the maximum propagation delay from the first network to the second network.

[0185] The maximum propagation delay from the first network to the second network is associated with the maximum distance from the satellite to the satellite within the coverage area of ​​the satellite cell and the speed of light. Fig.16 The satellite-to-ground signal propagation diagram shown in the figure can define 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.

[0186] 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.

[0187] like Fig.17As shown, it 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:

[0188] S1701. The server sends second indication information to the second network. Correspondingly, the second network receives the second indication information.

[0189] The server configures a portion of the first spectrum resource to the first network and the second network respectively, that is, the first network and the second network share the first spectrum resource. The spectrum resource configured by the server for the second network may change in different time periods. For example, in this embodiment, the third spectrum resource currently configured by the server for the second network is less than the fifth spectrum resource previously configured by the server for the second network (configured by the third configuration information).

[0190] This embodiment does not require frame-level synchronization between the first network and the second network.

[0191] When the configuration of the server 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 the third 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.

[0192] For example, the first network is TN and the second network is NTN. Fig.18A As shown, it is another schematic diagram of the spectrum resource configuration update of the first network and the second network. TN and NTN share the first spectrum resource. The left side of the dotted line is the spectrum resource configuration before the configuration update, and the right side of the dotted line is the spectrum resource configuration after the configuration update. The spectrum resources currently configured to TN are changed from less to more relative to the spectrum resources previously configured to TN, and the spectrum resources currently configured to NTN are changed from more to less relative to the spectrum resources previously configured to NTN. Among them, the spectrum resource configuration update occurs at the second time t0, that is, the second time is the effective time of the server's configuration. The server can also indicate the second time to TN and NTN.

[0193] The server also indicates to the NTN a second time interval Guard time <= t min NTN can also configure Guard time <= t according to the base station location information. min . And TN can use the new spectrum resource (i.e., the second spectrum resource) for communication after t0, while NTN continues to use the old spectrum resource (i.e., the fifth spectrum resource) for communication. Fig.18BThe schematic diagram of another example of resource usage after the spectrum resource configuration is updated is shown, where the server indicates that the NTN can use the old spectrum resource (fifth spectrum resource) for communication before the third time, and use the new spectrum resource (third spectrum resource) 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.

[0194] 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. Configure Guardtime <= 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.

[0195] For example, the first network is NTN and the second network is TN. Fig.19A As shown, it is another schematic diagram of the spectrum resource configuration update of the first network and the second network. TN and NTN share the first spectrum resource. The left side of the dotted line is the spectrum resource configuration before the configuration update, and the right side of the dotted line is the spectrum resource configuration after the configuration update. The spectrum resources currently configured to NTN are changed from less to more relative to the spectrum resources previously configured to NTN, and the spectrum resources currently configured to TN are changed from more to less relative to the spectrum resources previously configured to TN. Among them, the spectrum resource configuration update occurs at the second time t0, that is, the second time is the effective time of the server configuration. The server can also indicate the second time to TN and NTN.

[0196] 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 resource (i.e., the second spectrum resource) for communication after t0, while TN continues to use the old spectrum resource (i.e., the fifth spectrum resource) for communication. Fig.19B The schematic diagram of another example of resource usage after the spectrum resource configuration is updated is shown, and the server indicates that the TN can use the old spectrum resource (fifth spectrum resource) for communication before the third time, and use the new spectrum resource (third spectrum resource) 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.

[0197] 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. 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.

[0198] For example, the above t min It can be the minimum propagation delay from the first network to the second network.

[0199] 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. Fig.16 The satellite-to-ground signal propagation diagram shown in the figure can define 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.

[0200] According to a spectrum resource determination method provided by 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.

[0201] 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.

[0202] like Fig. 20 FIG. 1 is a flow chart of another spectrum resource determination method provided in an embodiment of the present application. Exemplarily, the method may include the following steps:

[0203] S2001. The server sends first configuration information to the second network. Correspondingly, the second network receives the first configuration information.

[0204] 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.

[0205] The specific implementation of this step can be found in Figure 8 The step S801 shown is not repeated here.

[0206] 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.

[0207] 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.

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

[0209] 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 acquire the location information of the first network.

[0210] The second network also obtains the location information of its own second network device.

[0211] Taking the first network as NTN and the second network as TN as an example, the ephemeris information of NTN is first obtained. The server can indicate the ephemeris information of NTN to TN, or NTN can indicate the ephemeris information of NTN to TN. Then, according to the ephemeris information of NTN, the location information of the first network at the effective time t0 of the first configuration information is calculated.

[0212] 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 TN may indicate the location information of TN to NTN.

[0213] S2003. The second network determines the minimum Doppler shift and the maximum Doppler shift corresponding to the second network devices respectively according to the location information of the first network and the location information of the second network device.

[0214] 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 the maximum Doppler shift corresponding to each second network device.

[0215] Exemplarily, 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; 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.

[0216] A guard band between the second spectrum resource and the third spectrum resource is greater than or equal to a maximum Doppler shift.

[0217] S2004. The second network determines a frequency spectrum boundary corresponding to the second network device.

[0218] 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 respectively. Specifically, there are two cases:

[0219] 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.

[0220] 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.

[0221] S2005. The second network determines 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 according to the location information of the first network and the location information of the second network device.

[0222] If the locations of the second network devices are different, the maximum propagation delay and the minimum propagation delay from the first network to different second network devices may be different. The second network determines the maximum propagation delay and the minimum propagation delay 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.

[0223] Furthermore, if the first network includes at least one first network device, and the location information of different first network devices is different, 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 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 at least one first network device to the second network device.

[0224] 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 delayIf 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 multiple satellites in the NTN to the base station.

[0225] 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 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 of NTN to the satellite base station.

[0226] The server and the second network perform the following step S2006a or S2006b according to the changes before and after the spectrum resource is updated:

[0227] 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 information to the second network, and the first indication information is used to instruct the second network device to use the third spectrum resource for communication after the 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 device; or

[0228] 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, 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.

[0229] It can be understood that the above process 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.

[0230] 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 values ​​of the 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 of the maximum Doppler shifts of multiple satellites to the base station; the minimum Doppler shift corresponding to the base station is the minimum value of the minimum Doppler shifts of multiple satellites to the base station.

[0231] 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 Guardband between the spectrum resources of the base station and the spectrum resources of NTN is greater than or equal to the corresponding Right now

[0232] 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 Guardband between the spectrum resources of the base station and the spectrum resources of NTN is greater than or equal to the corresponding Right now

[0233] For example, Fig.21 As shown in FIG. 1 , another example of spectrum resource determination is shown. 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.

[0234] For gNB#1, its Doppler shift f doppler1 <0 (satellite is far away from gNB#1); for gNB#2, its Doppler shift f doppler2 >0 (satellite is close to gNB#2). Fig.22A FIG. 1 is a schematic diagram of an example of determining spectrum resources in a scenario where a satellite interferes with a ground base station. If the center frequency of the spectrum resources of gNB#1 is higher than the center frequency of the spectrum resources of NTN, then the spectrum boundary corresponding to gNB#1 is greater than or equal to f boundary +f doppler1 .like Fig. 22B FIG. 1 is a schematic diagram of another example of determining spectrum resources in a scenario where a satellite interferes with a ground base station. If the center frequency of the spectrum resources of gNB#2 is higher than the center frequency of the spectrum resources of NTN, then the spectrum boundary corresponding to gNB#2 is greater than or equal to f boundary +f doppler2 .

[0235] In the above-mentioned 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 it and the interference source satellite. delay =t max =t min , and the 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 , which can avoid spectrum overlap caused by Doppler shift, and thus avoid interference between TN and NTN. Configuring Guard time and Guard band at the cell level further improves resource utilization compared to network-level configuration.

[0236] 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 coverage area of ​​NTN, and then configure Guard time>=t max Or Guard time ≤ t min .

[0237] 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.

[0238] Further, if TN includes multiple base stations, the maximum Doppler shift corresponding to the satellite base station is the maximum value of multiple maximum Doppler shifts of multiple base stations relative to the satellite base station; the minimum Doppler shift corresponding to the satellite base station is the minimum value of multiple minimum Doppler shifts of multiple base stations relative to the satellite base station.

[0239] 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 Guard band between the satellite base station and the spectrum resource of the TN is greater than or equal to the corresponding Guard band of the satellite base station. Right now

[0240] 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 Guard band between the spectrum resources of NTN and TN is greater than or equal to Right now

[0241] Still refer to Fig.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.

[0242] gNB#1 has a Doppler shift f for NTN. doppler1 <0 (satellite is far away from gNB#1), gNB#2 has a Doppler shift f for NTN doppler2 >0 (satellite is close to gNB#2). Then for NTN, like Fig.23A FIG. 1 is 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, the spectrum boundary of the satellite base station is greater than or equal to f boundary +f doppler2 ;like Fig. 23B FIG. 1 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 TN, then the spectrum boundary of the satellite base station is less than or equal to f boundary +f doppler1 .

[0243] The above consideration is 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 , which can avoid interference between TN and NTN when spectrum resource allocation is updated. or It can avoid spectrum overlap caused by Doppler shift, thereby avoiding interference between TN and NTN. Configuring Guard time and Guard band at the cell level further improves resource utilization compared to network-level configuration.

[0244] 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.

[0245] 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 for 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 for the server.

[0246] The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of interaction between various nodes. Accordingly, the embodiment of the present application also provides a spectrum resource determination device, which is used to implement the above various methods. The spectrum resource determination device can be the second network in the above method embodiment, or a component that can be used for the second network; or, the spectrum resource determination device can be the server in the above method embodiment, or a component that can be used for the server. It can be understood that in order to implement the above functions, the spectrum resource determination device includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0247] The embodiment of the present application may divide the spectrum resource determination device into functional modules according to the above method embodiment. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation.

[0248] Based on the same concept of the above spectrum resource determination method, the present application also provides the following spectrum resource determination device:

[0249] like Fig.24 FIG. 2 is a schematic diagram of a spectrum resource determination device provided in an embodiment of the present application. The spectrum resource determination device 2400 includes a transceiver unit 2401 and a processing unit 2402; wherein:

[0250] When the spectrum resource determination device is used to implement the function of the second network in the above method embodiment, the transceiver unit 2401 is used to execute the following steps: Figure 8 In the embodiment shown, the operation of the second network in S801 and the processing unit 2402 are used to perform the following steps: Figure 8 The operation of S802 in the embodiment shown; or, the transceiver unit 2401 is used to perform the following Fig.11 The operation of the second network in S1101 in the embodiment shown; or, the transceiver unit 2401 is used to perform the following Fig.17 The operation of the second network in S1701 in the embodiment shown; or, the transceiver unit 2401 is used to perform the following Fig. 20 In the embodiment shown, the operation of the second network in S2001, S2006a or S2006b, and the processing unit 2402 is used to perform the following steps: Fig. 20 The operations of S2002 to S2005 in the illustrated embodiment.

[0251] When the spectrum resource determination device is used to implement the function of the server in the above method embodiment, the transceiver unit 2401 is used to execute the following steps: Figure 8 The operation of the server in S801 in the embodiment shown; or, the transceiver unit 2401 is used to perform the following Fig.11 In the embodiment shown, the operation of the server in S1101; or, the transceiver unit 2401 is used to perform the following Fig.17 The operation of the server in S1701 in the embodiment shown; or, the transceiver unit 2401 is used to perform the following Fig. 20 The operation of the server in S2001, S2006a or S2006b in the illustrated embodiment.

[0252] For the specific implementation of the above-mentioned transceiver unit 2401 and the processing unit 2402, reference may be made to the description in the above-mentioned method embodiment.

[0253] like Fig.25 As shown, it is a structural schematic diagram of another spectrum resource determination device provided in an embodiment of the present application, and 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 also 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 for 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 also 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-output interface. Among them, the processor 2501 is used to implement the above-mentioned Fig.24 The functions of the processing unit 2402 in the embodiment shown; and the interface circuit 2502 are used to implement the above Fig.24 Functions of the transceiver unit 2401 in the illustrated embodiment.

[0254] When the above-mentioned spectrum resource determination device is a chip applied to the second network, the chip implements the function of the second network in the above-mentioned method embodiment. The chip receives information from other modules (such as radio frequency modules or antennas) in the second network, and the information is sent by the server to the second network; or the chip sends information to other modules (such as radio frequency modules or antennas) in the second network, and the information is sent by the second network to the server.

[0255] When the spectrum resource determination device is a chip applied to a server, the chip implements the functions of the server in the above method embodiment. The chip receives information from other modules in the server (such as a radio frequency module or an antenna), and the information is sent to the server by the second network; or the chip sends information to other modules in the server (such as a radio frequency module or an antenna), and the information is sent to the second network by the server.

[0256] In addition, it should be noted that the aforementioned transceiver unit and / or processing unit can be implemented through a virtual module, for example, the processing unit can be implemented through a software function unit or a virtual device, and the transceiver unit can be implemented through a software function or a virtual device. Alternatively, the processing unit or the transceiver unit can also be implemented through a physical device, for example, if the device is implemented using a chip / chip circuit, the transceiver unit can 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.

[0257] The division of modules in this application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each example of this application may be integrated into one processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0258] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or 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.

[0259] 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.

[0260] The embodiments of the present application also provide a computer program product including instructions, which, when executed on a computer, enables the computer to execute the method in the above embodiments.

[0261] An embodiment of the present application further provides a spectrum resource determination system, including the above-mentioned spectrum resource determination device.

[0262] The embodiment of 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.

[0263] 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, an open DU and other devices.

[0264] 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.

[0265] In this application, the 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 circuits in the aforementioned devices for implementing processing functions, which may implement or execute the 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 method disclosed in this application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0266] 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.

[0267] Optionally, the embodiment of the present application further provides a chip system, including: at least one processor and an interface, the at least one processor is coupled to a memory via the interface, and when the at least one processor runs a computer program or instruction in the memory, the chip system executes a 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 embodiment of the present application.

[0268] 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. The memory is any other medium that can be used to carry or store the 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), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM).

[0269] It should be understood that in the description of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; wherein A and B can be singular or plural. Also, in the description of the present application, unless otherwise specified, "multiple" refers to 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 items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, wherein a, b, c can be single or multiple. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be necessarily different. Meanwhile, in the embodiments of the present 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 the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0270] 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 loading and executing computer program instructions on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may 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 may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

[0271] 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 may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in a claim. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0272] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0273] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0274] The components in the device of the embodiment of the present application can be merged, divided and 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.

[0275] In the present application, under the premise of no logical contradiction, the examples may reference each other, for example, the methods and / or terms between method embodiments may reference each other, for example, the functions and / or terms between device embodiments may reference each other, for example, the functions and / or terms between device examples and method examples may 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 resources become less than the fifth spectrum resources 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 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 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.

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