Satellite-ground uplink frequency dynamic sharing method, device, equipment, medium and product

Abstract

The invention discloses a satellite-ground uplink frequency dynamic sharing method, device, equipment, medium and product, and the method comprises the steps: calculating an uplink beam hopping direction, beam hopping time and digital filtering configuration according to a hopping beam and frequency adjustment pattern determined based on a mapping relation between a beam position and a frequency; and then dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration, thereby realizing that different beams receive different frequency ranges under the whole satellite. Therefore, the problem that the satellite coverage and the spectrum utilization rate are contradictory under the existing satellite-ground frequency sharing single interference avoidance mode is solved, and the coexistence of the satellite and the adjacent frequency under the whole satellite coverage is realized.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, device, equipment, medium and product for dynamically sharing satellite-to-ground uplink frequencies. Background Art

[0002] For satellite-ground uplink frequency sharing, the satellite is severely interfered by the aggregate interference of wide-area ground cellular terminals. Existing satellite-ground frequency sharing methods are mostly static, pre-set deployment methods, using a single spatial isolation or frequency isolation. However, if only relying on spatial isolation, an isolation zone of hundreds of kilometers may be required, and the satellite coverage area will be limited; if only relying on frequency isolation, due to the adjacent channel leakage ratio (ACLR) of the cellular terminal and the adjacent channel selectivity (ACS) of the satellite receiver, it will bring a large suppression gain, and the satellite-ground adjacent frequency deployment will be much lower than the same frequency deployment isolation zone. Although the satellite coverage range is improved, the spectrum utilization rate will decrease.

[0003] At present, the existing single interference avoidance method of satellite-ground frequency sharing has the problem of contradiction between satellite coverage and spectrum utilization. Summary of the invention

[0004] In view of the problems existing in the prior art, the embodiments of the present invention provide a method, device, equipment, medium and product for dynamic sharing of satellite-ground uplink frequencies, which can solve the problem of contradiction between satellite coverage and spectrum utilization under the existing single interference avoidance mode of satellite-ground frequency sharing, and realize the coexistence of satellite and ground adjacent frequencies under the coverage of the entire satellite.

[0005] In a first aspect, an embodiment of the present invention provides a satellite-ground uplink frequency dynamic sharing method, which is applied to a satellite, and includes:

[0006] According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0007] The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0008] As an improvement of the above solution, the method further includes:

[0009] Receive the beam hopping and frequency adjustment pattern sent by the first non-ground network base station on the ground; wherein the beam hopping and frequency adjustment pattern is generated by the first non-ground network base station on the ground according to the mapping relationship between the wave position and the frequency formulated by itself or obtained through the satellite-ground intelligent collaborative network element, and the uplink frequency is associated with the beam hopping pattern.

[0010] As an improvement of the above solution, after receiving the beam hopping and frequency adjustment pattern sent by the first non-ground network base station on the ground, the method further includes:

[0011] The received beam hopping and frequency adjustment pattern is parsed; wherein the beam hopping and frequency adjustment pattern is uploaded by the first non-ground network base station on the ground through a feeder link or a measurement and control link.

[0012] As an improvement of the above solution, the method further includes:

[0013] Receive the beam hopping and frequency adjustment pattern sent by the second non-ground network base station on board the satellite; wherein the beam hopping and frequency adjustment pattern is generated by the second non-ground network base station on board the satellite based on the mapping relationship between the wave position and the frequency formulated by itself or uploaded by the satellite-ground intelligent collaborative network element, and the uplink frequency is associated with the beam hopping pattern.

[0014] As an improvement of the above solution, when the mapping relationship between the wave position and the frequency is uploaded by the satellite-ground intelligent collaborative network element, the method further includes:

[0015] Receiving a mapping relationship between wave positions and frequencies sent by the satellite-ground intelligent collaborative network element; wherein the mapping relationship is uploaded by a second non-ground network base station on board the satellite through a feeder link or a measurement and control link;

[0016] The received mapping relationship is parsed, and the parsed mapping relationship is sent to the satellite-borne second non-terrestrial network base station to instruct the satellite-borne second non-terrestrial network base station to generate the beam hopping and frequency adjustment pattern.

[0017] As an improvement of the above solution, the beam hopping and frequency adjustment pattern indicates that the same beam position pointing corresponds to the same uplink frequency.

[0018] As an improvement of the above solution, dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration includes:

[0019] According to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration, the frequency configuration corresponding to each beam in the next stage is sent to the corresponding beam digital filtering function for configuration in advance by a first set time;

[0020] The digital filtering configuration includes the frequency configuration of the corresponding uplink beam jump pointing downward, and the first set time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

[0021] As an improvement of the above solution, the mapping relationship includes a second mapping table between wave positions and frequencies, wherein the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position;

[0022] The method further comprises:

[0023] A frequency switching schedule is received from a first non-ground network base station on the ground; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

[0024] As an improvement of the above solution, dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration includes:

[0025] After receiving the second set time corresponding to each beam from the frequency switching schedule, the frequency configuration corresponding to each beam in the next stage is sent to the corresponding beam digital filtering function for configuration;

[0026] Among them, the frequency configuration corresponding to each beam is determined according to the uplink beam jump direction, the beam jump time and the digital filtering configuration. The second setting time of each beam is determined according to the frequency switching moment of the corresponding beam and the first setting time. The first setting time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

[0027] As an improvement of the above scheme, the frequency switching time corresponding to each beam position pointing is determined by the first non-ground network base station on the ground based on the time difference between the time when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

[0028] In a second aspect, an embodiment of the present invention provides a satellite-ground uplink frequency dynamic sharing method, which is applied to a network device, including:

[0029] The beam hopping and frequency adjustment patterns are uploaded to the satellite so that the satellite performs the following operations:

[0030] According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0031] The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0032] As an improvement of the above solution, the method further includes:

[0033] According to the mapping relationship between the beam position and the frequency generated by itself or uploaded by the satellite-ground intelligent cooperation network element, the uplink frequency is associated with the beam hopping pattern to generate the beam hopping and frequency adjustment pattern.

[0034] As an improvement of the above solution, the mapping relationship includes a second mapping table between wave positions and frequencies, and the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position; the method further includes:

[0035] The frequency range corresponding to each wave position of the satellite service indicated by the second mapping table is adjusted to obtain an updated second mapping table.

[0036] As an improvement of the above solution, when the beam hopping and frequency adjustment pattern is generated according to the second mapping table, and the network device is a first non-terrestrial network base station on the ground, the method further includes:

[0037] A frequency switching schedule is sent to the satellite; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

[0038] As an improvement of the above scheme, the beam hopping and frequency adjustment pattern is sent by the first non-ground network base station on the ground at a third set time before the critical time for adjusting the filtering frequency range of the beam pointed to by the satellite; the third set time is determined according to the delay of the feed link or the measurement and control link and the frequency switching time of the corresponding beam.

[0039] As an improvement on the above scheme, the frequency switching time corresponding to each beam position pointing in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the time when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

[0040] As an improvement of the above scheme, the frequency switching time corresponding to each wave position in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the frequency switching time of the corresponding wave position and the beam jumping time, wherein the beam jumping time includes the period and time slot of the corresponding wave position.

[0041] In a third aspect, an embodiment of the present invention provides a satellite-ground uplink frequency dynamic sharing device, which is applied to a satellite, including:

[0042] A calculation module is used to calculate the uplink beam hopping direction, beam hopping time and digital filter configuration according to the beam hopping and frequency adjustment pattern; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0043] The configuration module is used to dynamically adjust the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0044] In a fourth aspect, an embodiment of the present invention provides a satellite-ground uplink frequency dynamic sharing device, which is applied to a network device, including:

[0045] The pattern uploading module is used to upload the beam hopping and frequency adjustment pattern to the satellite, so that the satellite performs the following operations:

[0046] According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0047] The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0048] In a fifth aspect, an embodiment of the present invention provides a satellite-to-ground uplink frequency dynamic sharing device, comprising: a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the satellite-to-ground uplink frequency dynamic sharing method as described in any one of the first aspect or the satellite-to-ground uplink frequency dynamic sharing method as described in any one of the second aspect is implemented.

[0049] In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the satellite-to-ground uplink frequency dynamic sharing method as described in any one of the first aspect or the satellite-to-ground uplink frequency dynamic sharing method as described in any one of the second aspect.

[0050] In the seventh aspect, an embodiment of the present invention provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the satellite-to-ground uplink frequency dynamic sharing method as described in any one of the first aspect or the satellite-to-ground uplink frequency dynamic sharing method as described in any one of the second aspect.

[0051] Compared with the prior art, an embodiment of the present invention provides a method, device, equipment, medium and product for dynamic sharing of satellite-ground uplink frequencies. The satellite calculates the uplink beam hopping direction, beam hopping time and digital filtering configuration according to the beam hopping and frequency adjustment pattern determined based on the mapping relationship between the wave position and the frequency; then dynamically adjusts the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration, so that different beams under the whole satellite receive different frequency ranges, thereby solving the problem of contradiction between satellite coverage and spectrum utilization under the existing single interference avoidance mode of satellite-ground frequency sharing, and realizing the coexistence of satellite and ground with the same adjacent frequency under the coverage of the whole satellite. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solution of the present invention, the drawings used in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 is a schematic diagram of a scenario in which a satellite and a ground network use the same frequency according to an embodiment of the present invention;

[0054] Figure 2 is a schematic diagram of a scenario in which a satellite and a ground network use adjacent frequencies according to an embodiment of the present invention;

[0055] Figure 3 It is a schematic diagram of a scenario in which a satellite and a ground network use different frequencies using a frequency isolation band according to an embodiment of the present invention;

[0056] Figure 4 is a flow chart of a satellite-to-ground uplink frequency dynamic sharing method provided by an embodiment of the present invention;

[0057] Figure 5 It is a schematic diagram of functional modules in a transparent forwarding mode provided by an embodiment of the present invention;

[0058] Figure 6 It is a schematic diagram of a process in a transparent forwarding mode provided by an embodiment of the present invention;

[0059] Figure 7 This is a schematic diagram of functional modules in an on-board regeneration mode provided by an embodiment of the present invention;

[0060] Figure 8 is another schematic diagram of a functional module in an on-board regeneration mode provided by an embodiment of the present invention;

[0061] Fig. 9 is a schematic diagram of a flow chart in an on-board regeneration mode provided by an embodiment of the present invention;

[0062] Fig.10 is a schematic diagram of dynamic mapping in a transparent forwarding mode provided by an embodiment of the present invention;

[0063] Fig.11 is another flow chart of a satellite-to-ground uplink frequency dynamic sharing method provided by an embodiment of the present invention;

[0064] Fig.12 It is a structural block diagram of a satellite-to-ground uplink frequency dynamic sharing device provided by an embodiment of the present invention;

[0065] Fig.13 It is another structural block diagram of a satellite-to-ground uplink frequency dynamic sharing device provided by an embodiment of the present invention;

[0066] Fig.14 The present invention provides a structural block diagram of a satellite-to-ground uplink frequency dynamic sharing device. DETAILED DESCRIPTION

[0067] like Figures 1 to 3 The satellite-ground frequency sharing scheme under a single spatial isolation or frequency isolation is shown; when the satellite and the ground network use the same frequency, the following scenarios exist: (1) In the same frequency and same area scenario, main lobe interference cannot coexist; (2) In the same frequency isolation zone, side lobe interference cannot coexist; (3) Satellite-ground frequency sharing scenario. When the satellite and the ground network use adjacent frequencies, the following scenarios exist: (1) In the same frequency and same area scenario, main lobe and adjacent frequency interference cannot coexist; (2) In the adjacent frequency isolation zone, adjacent frequency side lobe interference cannot coexist; (3) Satellite-ground frequency sharing scenario. When the satellite and the ground network use different frequencies using a frequency isolation zone, the satellite-ground frequency sharing scenario.

[0068] Since the coverage range of the entire satellite is extremely large, for example, a low-orbit satellite with an orbital altitude of 500km and a scanning angle of ±58° has a coverage diameter of 1600km. Under this satellite coverage range, the same-frequency deployment and adjacent-frequency deployment scenarios between the satellite and the ground may coexist.

[0069] The key component of satellite adjacent frequency reception is the beam digital filtering function of the analog-to-digital converter ADC (Analog to Digital Converter, ADC), which is configured as the cell bandwidth by default. When the entire satellite is a cell, it is impossible to achieve the goal of configuring different filter sliding windows under the same satellite; when multiple satellite beams are a cell, the beams are bound to the co-adjacent frequency configuration of the ground network, and it is impossible to flexibly configure the sliding window according to the satellite-ground interference relationship; when a single beam is a cell, there is: the interference intensity of the satellite uplink and downlink is inconsistent, resulting in inconsistency between the uplink and downlink and the co-adjacent frequency deployment requirements of the ground when the beam is pointed to a certain area. If the beam digital filtering function is configured as the cell bandwidth, when the satellite downlink can be deployed at the same frequency and the uplink can only be deployed at the adjacent frequency, the cell bandwidth can only be configured as the adjacent frequency range, which limits the use range of the downlink frequency. At the same time, the beam digital filtering function of the same beam cannot be adjusted according to the dynamic jump of the beam. It can be seen that there is a contradiction between satellite coverage and spectrum utilization under the existing single interference avoidance method of satellite-ground frequency sharing.

[0070] In order to reduce the complexity of implementation, the existing technology considers the satellite beam for a certain beam position from entry, overhead to exit time range, and takes the position with the most serious uplink and downlink interference as the representative, and performs a single mapping of beam position and frequency, constructing a relatively stable beam position and frequency mapping relationship. However, as the satellite and the beam move, the strength of the useful signal and the interference signal between the satellite and the ground change, and the existing technology only considers the most serious interference situation, and there are still the following disadvantages:

[0071] (1) Spectrum utilization efficiency is not maximized. Taking an orbit altitude of 500km and a scanning loss of 4dB as an example, the link loss at the satellite apogee is as much as 9dB compared to the subsatellite point. When the satellite moves to the location with the most serious interference, co-frequency deployment is not feasible at this wavelength, but adjacent frequency deployment is feasible. As the satellite moves, the wavelength may be able to meet the requirements of co-frequency deployment.

[0072] (2) The satellite needs to store a mapping table of wave positions and frequencies, which puts a lot of pressure on the satellite cache. The wave position entry N in the mapping table should be the total set of wave positions that can be covered within the satellite movement time t. At a single moment, the satellite covers hundreds or thousands of wave positions. The mapping table needs to cache all wave position entries within time t. At the same time, it also involves soft switching between the old and new mapping tables, and the new and old mapping tables need to be stored, which places certain requirements on the on-board cache.

[0073] In order to solve the problem of contradiction between satellite coverage and spectrum utilization under the above-mentioned existing single interference avoidance mode of satellite-ground frequency sharing, an embodiment of the present invention proposes a dynamic sharing method of satellite-ground uplink frequency based on beam hopping. The satellite beam dynamically adjusts the on-board beam digital filtering function according to the interference relationship between the pointed wave position and the cellular network, so as to realize the coexistence of satellite and ground co-adjacent frequencies under the coverage of the whole satellite, that is, when hopping to the wave position close to the ground network, the adjacent frequency band is used for reception, and when it is far away from the ground network, the same frequency band is used for reception, taking into account both the satellite coverage range and the spectrum utilization.

[0074] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0075] It is understood that the various numbers involved in the embodiments of the present invention are only for the convenience of description and are not intended to limit the scope of the present application. The size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0076] In embodiments of the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. The term "multiple or several" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0077] See also Figure 4 , Figure 4 The flowchart of a satellite-ground uplink frequency dynamic sharing method provided by an embodiment of the present invention is as follows. The satellite-ground uplink frequency dynamic sharing method is applied to a satellite and includes:

[0078] S11: Calculate the uplink beam hopping direction, beam hopping time and digital filter configuration according to the beam hopping and frequency adjustment pattern; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0079] S12: Dynamically adjust the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0080] It should be noted that the beam hopping and frequency adjustment pattern may be sent / uploaded by a network device, which may be a non-terrestrial network (NTN) base station, such as a ground non-terrestrial network base station or a satellite-borne second non-terrestrial network base station.

[0081] The embodiment of the present invention determines the beam hopping and frequency adjustment pattern by multiplexing the beam hopping pattern in the beam hopping system and increasing the mapping relationship between the wave position and the frequency. The satellite calculates the uplink beam hopping direction, beam hopping time and digital filtering configuration based on the beam hopping and frequency adjustment pattern, and performs frequency configuration of the beam digital filtering function corresponding to each uplink beam, that is, when the satellite beam points to a fixed area, it matches the corresponding frequency range and dynamically adjusts the sliding window of the digital filtering function corresponding to each beam, so that different beams under the whole satellite receive different frequency ranges, and the same-adjacent frequency relationship with the ground is established as needed, so as to solve the problem of contradiction between satellite coverage and spectrum utilization under the existing single interference avoidance mode of satellite-ground frequency sharing, and realize the co-existence of satellite-ground and satellite-adjacent frequency under the coverage of the whole satellite.

[0082] Among them, the mapping relationship includes a first mapping table between wave positions and frequencies and a second mapping table between wave positions and frequencies; the first mapping table indicates a single mapping between each wave position of the satellite service and the frequency range required to be configured for the on-board beam digital filtering function corresponding to the corresponding wave position; the second mapping table indicates a dynamic mapping between each wave position of the satellite service and the frequency range corresponding to the corresponding wave position.

[0083] Specifically, the first mapping table includes at least one first information indicating a wavelength, at least one second information indicating an available uplink frequency of the wavelength, and at least one third information indicating an available downlink frequency of the wavelength.

[0084] Among them, the first information includes the wave position number or the longitude and latitude indicating the wave position area; the second information includes the uplink frequency parameter or the uplink frequency adjustment mark; the third information includes the downlink frequency parameter or the downlink frequency adjustment mark. For example, the adjustment mark 0 represents the reception of the 20M frequency that is adjacent to the ground frequency, and the adjustment mark 1 represents the reception of the 5M frequency that is adjacent to the ground frequency. It should be understood that the frequency parameter or adjustment mark indicates the frequency range that needs to be configured for the beam digital filtering function of the corresponding wave position.

[0085] It should be noted that the term "adjustment identifier" can also be described as "frequency adjustment code" and "adjustment code", and the three can be used interchangeably and are not specifically limited in the embodiments of the present invention.

[0086] The data format of the first mapping table between wave positions and frequencies is shown in the following table.

[0087] Wave number Uplink frequency Downlink frequency Wave position number / latitude and longitude 1 Frequency parameter / adjustment mark UP_1 Frequency parameter / adjustment flag DOWN_1 …… …… …… Wave position number / latitude and longitude N Frequency parameter / adjustment mark UP_N Frequency parameter / adjustment flag DOWN_N

[0088] It should be understood that the frequency parameters in the first mapping table between the above-mentioned wave position and frequency are frequency parameters readable by the on-board beam digital filtering function, and the adjustment identifier is used to indicate the frequency range required to be configured by the on-board beam digital filtering function. Through the above-mentioned first mapping table between the wave position and frequency, the frequency range available for each wave position served by the satellite is clarified, that is, when the beam serving the wave position receives a signal within the same frequency range as that of the ground network or adjacent to the ground network, the satellite beam at the wave position will not be affected by the concentrated interference of the cellular terminal and will not interfere with the ground network.

[0089] Furthermore, the first mapping table between wave positions and frequencies is obtained by estimating or simulating the geographical isolation distance of the ground network shared by the wave position and frequency based on the sixth information related to the satellite and the ground network; wherein the geographical isolation distance corresponding to each wave position is the geographical isolation distance corresponding to the position with the most serious uplink interference within the time range from entry, overhead to exit of the corresponding wave position, and the geographical isolation distance meets the satellite-ground co-frequency and adjacent frequency compatibility requirements.

[0090] In the embodiment of the present invention, the first mapping table between the wave position and the frequency depends on the geographical isolation distance of the ground network shared by the wave position and the frequency. When the geographical isolation distance is large enough to meet the satellite-ground frequency compatibility requirement, the wave position can use the same frequency of the ground network; when the geographical isolation distance cannot meet the satellite-ground frequency compatibility requirement, but the geographical isolation distance is large enough to meet the satellite-ground adjacent frequency compatibility requirement, the wave position can use the ground network adjacent frequency.

[0091] It should be noted that the geographical isolation distance that meets the requirements of satellite-ground co-frequency and adjacent frequency compatibility can be obtained through theoretical estimation, or by calculating and simulating the sixth information related to the satellite and ground network based on the satellite-ground intelligent collaborative network elements. The theoretical estimation and simulation calculation of the geographical isolation distance belong to the existing technology and will not be described in detail here.

[0092] Among them, the sixth information includes: effective isotropic radiated power (EIRP) of satellite and ground networks, interference threshold, sidelobe suppression, adjacent channel leakage ratio (ACLR) and other radio frequency information, satellite beam coverage information, and ground can be estimated theoretically or calculated through simulation. It is an existing technology and will not be described in detail here.

[0093] Since the satellite is moving at high speed, in order to reduce the complexity of implementation, the position with the most serious uplink interference for a certain wave position from entry, overhead to exit is taken as a representative, and the first mapping table between wave position and frequency is formulated. Compatibility analysis is performed based on this position. At this position, the satellite-ground compatibility of a certain wave position is the most stringent, and the geographical isolation distance is the largest, which can meet the satellite-ground co-frequency and adjacent frequency compatibility requirements at any position when the satellite moves at high speed.

[0094] Since the first mapping table between wave positions and frequencies needs to include all wave positions within the satellite coverage range, the amount of data is large. In the embodiment of the present invention, the position with the most serious uplink interference within the time range of the wave position from entry, overhead to exit is taken as a representative, and the corresponding wave position and its corresponding frequency range at this position are determined to achieve a single mapping of wave position and frequency. The above-mentioned first mapping table between wave position and frequency is formulated, which can reduce the amount of data in the mapping table between wave position and frequency.

[0095] In the embodiment of the present invention, the position where the uplink and downlink interference is the most serious within the time range from entry, overhead to exit of a certain wave position of the satellite can be considered as a compatibility analysis representative, and the non-ground network base station independently formulates or obtains the first mapping table between the wave position and the frequency from the satellite-ground intelligent cooperation network element. The first mapping table between the wave position and the frequency specifies a single mapping between all the wave positions served by the satellite and the frequency range (such as uplink frequency and downlink frequency) required to be configured for the on-board beam digital filtering function corresponding to the wave position.

[0096] Furthermore, the non-ground network base station can also consider the impact of changes in the strength of useful signals and interference signals between the satellite and the ground caused by the movement of the satellite and the beam, and formulate or obtain the second mapping table between the wave position and the frequency from the satellite-ground intelligent cooperation network element. The second mapping table between the wave position and the frequency specifies the dynamic mapping between each wave position of the satellite service and the uplink and downlink frequencies, that is, the frequency strategy of each wave position within the satellite entry and exit time range and the critical time of the frequency strategy switching. Through this dynamic mapping table, it can be clarified that each wave position is within the satellite entry and exit time range, and the uplink and downlink frequencies used by the beam serving the wave position are adjacent or co-frequency deployment with the ground network. The satellite beam under this wave position will not be affected by the concentrated interference of the cellular terminal. Reception will not be affected, nor will it cause interference to the ground network. Since the satellite is moving at high speed, in order to reduce the complexity of implementation, the embodiment of the present invention considers the position where the satellite has the most serious uplink and downlink interference within the time range from entry, overhead to exit for a certain wave position as a representative. At this time, the satellite-ground compatibility is the most stringent, and the frequency isolation is the largest, which can meet the compatibility requirements of any position under the condition of high-speed movement of the satellite.

[0097] Specifically, the second mapping table includes fourth information related to the downlink available frequency of the satellite service wavelet and the critical time for the satellite to switch between the same and adjacent frequencies, and fifth information related to the uplink available frequency of the satellite service wavelet and the critical time for the satellite to switch between the same and adjacent frequencies.

[0098] The fourth information includes a downlink frequency strategy of at least one wave position, and the downlink frequency strategy includes a critical time for onboard downlink switching and a corresponding switched satellite-to-ground adjacent frequency or satellite-to-ground co-frequency; the fifth information includes an uplink frequency strategy of at least one wave position, and the uplink frequency strategy includes a critical time for onboard uplink switching and a corresponding switched satellite-to-ground adjacent frequency or satellite-to-ground co-frequency.

[0099] The mapping relationship of wave position A in the second mapping table between wave position and frequency is shown in the following table.

[0100]

[0101] It should be understood that the satellite-ground co-frequency frequency x1 in the above table represents the frequency used by beam A at the current downlink moment to meet the satellite-ground co-frequency compatibility requirements; the satellite-ground adjacent frequency frequency y1 represents the frequency that the downlink beam A needs to switch to at the critical time T0 to meet the satellite-ground adjacent frequency compatibility requirements; similarly, the satellite-ground adjacent frequency deployment y2 represents the frequency used by beam A at the current uplink moment to meet the satellite-ground adjacent frequency compatibility requirements; the satellite-ground co-frequency frequency x2 represents the frequency used by beam A at the current uplink moment to meet the satellite-ground co-frequency compatibility requirements.

[0102] Further, dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration includes:

[0103] According to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration, the frequency configuration corresponding to each beam in the next stage is sent to the corresponding beam digital filtering function for configuration in advance by a first set time;

[0104] The digital filtering configuration includes the frequency configuration of the corresponding uplink beam jump pointing downward, and the first set time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

[0105] Furthermore, the method further comprises:

[0106] receiving the beam hopping and frequency adjustment pattern sent by a network device;

[0107] The beam hopping and frequency adjustment pattern is generated by the network device according to the mapping relationship between the wave position and the frequency generated by itself or uploaded by the satellite-ground intelligent cooperation network element, and then the uplink frequency is associated with the beam hopping pattern.

[0108] Exemplarily, the non-terrestrial network base station generates a beam hopping pattern within a set period of time according to user service requirements, and the beam hopping pattern specifies the beam position number served by each beam in each time slot / subframe within the set time.

[0109] Based on the mapping relationship between the satellite network and frequency, the uplink frequency is associated with the beam hopping pattern, and the beam hopping and frequency adjustment pattern is formed as shown in the following table. The beam hopping and frequency adjustment pattern indicates that the same beam position corresponds to the same uplink frequency and is not affected by satellite movement. At the same time, the beam hopping and frequency adjustment pattern also indicates the critical time for the beam digital filtering function corresponding to the beam positions with different directions to adjust the filter frequency range, that is, the start time and end time in the table.

[0110]

[0111] It should be noted that the frequency indicated in the beam hopping and frequency adjustment pattern can be a frequency parameter readable by the satellite beam position frequency mapping receiving unit, or it can be a receiving frequency adjustment code, which is not specifically limited in the embodiment of the present invention. For example, 0 represents receiving a 20M frequency that is adjacent to the ground frequency, and 1 represents receiving a 5M frequency that is adjacent to the ground frequency.

[0112] In the case where the network device is the first non-terrestrial network base station on the ground (i.e., transparent forwarding mode), the beam hopping and frequency adjustment pattern is uploaded to the satellite by the first non-terrestrial network base station on the ground through a feeder link or a measurement and control link. For example, the first non-terrestrial network base station on the ground transmits the generated beam hopping and frequency adjustment pattern to the on-board pattern analysis module for analysis through the measurement and control link or the feeder link, and then the pattern analysis module sends the analyzed beam hopping and frequency adjustment pattern to the on-board beam control unit for analysis to obtain the uplink beam hopping direction, beam hopping time, and corresponding digital filter configuration, such as Figure 5 and Figure 6 Considering that the instruction transmission and configuration of the sliding window of the digital filtering function requires a certain delay, assuming it is Δt, the beam control unit sends the frequency configuration corresponding to each beam in the next stage to the beam digital filtering function of the ADC in advance Δt for configuration.

[0113] In the embodiment of the present invention, since only a digital filter configuration solution unit needs to be added to the wave control unit on the satellite, the rest can largely reuse the functions of the beam hopping system controlled by the ground, that is, dynamic sharing of satellite-ground uplink frequencies can be achieved. At the same time, the satellite-ground information transmission also reuses the beam hopping pattern. It is only necessary to add frequency parameters to the beam hopping pattern in the original beam hopping system, and the message format and bearer link of the original beam hopping system are reused, which is simple to implement. At the same time, since the beam hopping and frequency patterns are sent periodically, there is no need to additionally upload and store a huge mapping relationship between wave positions and frequencies. Compared with the existing implementation scheme in the transparent forwarding mode, the difficulty of implementing dynamic sharing of satellite-ground uplink frequencies can be effectively reduced.

[0114] In the case where the network device is a satellite-borne second non-ground network base station (i.e., on-board regeneration mode), the satellite-borne second non-ground network base station can also formulate a mapping relationship between the wave position and the frequency uploaded by the ground satellite-ground intelligent collaborative network element, associate the uplink frequency with the beam hopping pattern, generate a beam hopping and frequency adjustment pattern, and then send the beam hopping and frequency adjustment pattern to the satellite.

[0115] like Figure 7 As shown, when the mapping relationship between the wave position and frequency of the satellite-borne second non-ground network base station is formulated by itself, the satellite-borne second non-ground network base station will first associate the uplink frequency with the beam hopping pattern based on the mapping relationship between the wave position and frequency generated by itself, generate a beam hopping and frequency adjustment pattern, and then upload the beam hopping and frequency adjustment pattern to the on-board pattern analysis module for analysis, and then the pattern analysis module sends the analyzed beam hopping and frequency adjustment pattern to the on-board wave control unit. The subsequent process executed by the wave control unit is the same as the above-mentioned transparent forwarding mode, and will not be repeated here.

[0116] like Figure 8 and 9As shown, when the mapping relationship between the wave position and frequency of the second non-ground network base station on board is uploaded by the satellite-ground intelligent cooperative network element, the satellite-ground intelligent cooperative network element needs to first upload the mapping relationship between the wave position and the frequency to the on-board pattern parsing module for parsing, and then the pattern parsing module forwards the parsed mapping relationship between the wave position and the frequency to the second non-ground network base station on board. Based on the parsed mapping relationship between the wave position and the frequency, the second non-ground network base station on board associates the uplink frequency with the beam hopping pattern, generates a beam hopping and frequency adjustment pattern, and then sends the beam hopping and frequency adjustment pattern to the on-board beam control unit. The subsequent process executed by the beam control unit is the same as the above-mentioned transparent forwarding mode, which will not be repeated here.

[0117] Dynamic mapping of wave position and frequency. As the satellite and the beam move, the strength of the useful signal and the interference signal between the satellite and the ground changes. The mapping relationship between the wave position and the frequency of the satellite network constructed above is relatively stable. However, because the most serious interference situation is taken into account, the spectrum utilization efficiency is not maximized, and the coverage range under satellite frequency reuse is not maximized. In order to maximize the spectrum utilization efficiency and the coverage range under satellite frequency reuse, and to improve the robustness of the dynamic sharing of satellite-ground uplink frequency based on the above-mentioned single mapping of wave position and frequency, the embodiment of the present invention further adjusts the mapping relationship between the wave position and the frequency of the satellite network, such as appropriately extending or delaying the switching time of the same frequency and adjacent frequency. For example, the second mapping table before and after adjustment shown in the table below, the frequency switching time of the same frequency before adjustment is t0, and after adjustment is t0-z, that is, switching to the same frequency in advance, the frequency switching time of the adjacent frequency before adjustment is t1, and after adjustment is t1+2z, that is, delaying the switching to the adjacent frequency, and so on.

[0118] The second mapping table of original wave position and frequency The second mapping table of adjusted wave position and frequency Same frequency t0—adjacent frequency (short t1)—same frequency (t2) Same frequency t0-z—adjacent frequency (t1+2z)—same frequency (t2-z) Adjacent frequency t0—same frequency (t1 short) Adjacent frequency t0+t1

[0119] By further adjusting the dynamic mapping relationship between wave position and frequency, the spectrum utilization rate can be reduced to a certain extent and the available frequency of the wave position can be avoided from changing too quickly.

[0120] Specifically, when the beam hopping and frequency adjustment pattern is generated according to the second mapping table, and the network device is a first non-terrestrial network base station on the ground, the method further includes:

[0121] A frequency switching schedule is received from a first non-ground network base station on the ground; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

[0122] Further, after receiving the second set time corresponding to each beam from the frequency switching schedule, the frequency configuration corresponding to each beam in the next stage is sent to the corresponding beam digital filtering function for configuration;

[0123] Among them, the frequency configuration corresponding to each beam is determined according to the uplink beam jump direction, the beam jump time and the digital filtering configuration. The second setting time of each beam is determined according to the frequency switching moment of the corresponding beam and the first setting time. The first setting time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

[0124] For example, in the transparent forwarding mode, since the beam hopping and frequency adjustment patterns are periodic, the first non-ground network base station on the ground, in addition to generating the beam hopping and frequency adjustment patterns, needs to generate a frequency switching timetable indicating the frequency switching time and the corresponding switching frequency of each wave position within the effective period of this wave control instruction, which is used to indicate the dynamic frequency adjustment of the on-board beam digital filtering function.

[0125] In some embodiments, the frequency switching time corresponding to each beam position pointing is determined by the first non-ground network base station on the ground according to the time difference between the time when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam. The beam hopping and frequency adjustment pattern is sent by the first non-ground network base station on the ground at a third set time before the critical time of the filter frequency range adjustment of the beam pointed by the satellite; the third set time is determined according to the delay of the feed link or the measurement and control link and the frequency switching time of the corresponding beam. The frequency switching timetable is shown in the following table.

[0126]

[0127] For example, the moment when the satellite receives the beam hopping and frequency adjustment pattern and the critical time T for the beam digital filter function corresponding to the beam pointing to 4 to adjust the filter frequency range Psat The time difference between.

[0128] like Fig.10 As shown, it is assumed that the satellite P moment is the critical time T for the beam digital filter function corresponding to the beam pointing to 4 to adjust the filter frequency range. P_sat At the same time, considering that the satellite P moment is the frequency switching moment ΔT1 corresponding to the beam pointing to 4, the first non-ground network base station on the ground needs to be at T P_sat Front feeder +ΔT1 sends beam hopping and frequency adjustment patterns, which are transmitted through the feeder link or the tracking and control link. The satellite P_sat -ΔT1 receives the beam hopping and frequency adjustment pattern, and performs analytical calculation on the beam hopping and frequency adjustment pattern.

[0129] Among them, t feederThe first non-ground network base station on the ground can calculate the delay of the feeder link / traceability link through the satellite ephemeris information and its own position information. feeder The specific calculation process belongs to the prior art and will not be described in detail here.

[0130] Taking into account that the transmission and configuration of the command of the sliding window of the beam digital filtering function requires a certain delay Δt, the satellite maintenance timer, after receiving the frequency switching schedule sent by the first non-ground network base station on the ground, sends the corresponding frequency configuration to the ADC of the beam pointing to 4 for configuration of the beam digital filtering function every ΔT1-Δt.

[0131] under Fig.10 Some of the terminology concepts involved are explained.

[0132] BWP: Bandwidth Part, partial bandwidth;

[0133] DCI: Downlink Control Information, downlink control information;

[0134] UL: Up-Link, uplink;

[0135] DL: Down Link, downlink.

[0136] In other embodiments, consider setting ΔT with the frequency switching schedule received by the satellite as an anchor point. For the ground-based controlled beam-hopping system, the first non-ground network base station on the ground and the satellite have aligned the beam hopping moments. Therefore, it is possible to consider setting ΔT' with the beam hopping time as the anchor point, that is, starting the timing with the most recent beam hopping time of the beam as the anchor point. The beam-hopping system has achieved time synchronization between the satellite and the first non-ground network base station on the ground with respect to the beam hopping time, and the first non-ground network on the ground sets ΔT' based on the anchor point. As a result, the first non-ground network base station on the ground does not have to calculate the delay of the feeder link. At this time, the frequency switching moment corresponding to each wave position in the frequency switching schedule is determined by the first non-ground network base station on the ground based on the time difference between the frequency switching moment of the corresponding wave position and the beam hopping time, wherein the beam hopping time includes the period and time slot of the corresponding wave position.

[0137] As shown in the following table, N and M are the number of periods of the beam hopping time associated with the frequency switching moment corresponding to the pattern period of the beam hopping and frequency adjustment pattern, and ΔT' is the time difference between the frequency switching moment and the beam hopping time. r is the associated beam hopping slot n. The frequency switching moment corresponding to each beam position pointing is determined according to the uplink beam hopping time and the number of periods of the pattern period of the corresponding uplink beam hopping pointing in the beam hopping and frequency adjustment pattern, the time difference between the frequency switching moment of the uplink beam hopping pointing in the beam hopping and frequency adjustment pattern and the beam hopping time, and the number of beam hopping slots associated with the uplink beam hopping pointing, as shown in the following table.

[0138]

[0139] It should be noted that in the on-board regeneration mode, since the beam hopping and frequency adjustment pattern is formulated by the satellite-borne second non-ground network base station itself, it can be further refined, and the satellite-borne second non-ground network base station itself can configure and adjust the beam hopping and frequency adjustment pattern in real time, without generating a frequency switching schedule.

[0140] Compared with the prior art, the embodiment of the present invention adds a mapping relationship between satellite network beams and frequencies on the basis of the beam hopping patterns and on-board functional modules in the multiplexed beam hopping system, determines the beam hopping and frequency adjustment patterns, and the satellite calculates the uplink beam hopping direction, beam hopping time and digital filtering configuration based on the beam hopping and frequency adjustment patterns, and performs frequency configuration of the beam digital filtering function corresponding to each uplink beam, that is, when the satellite beam points to a fixed area, it matches the corresponding frequency range, and dynamically adjusts the digital filtering function sliding window corresponding to each beam, so that different beams under the entire satellite receive different frequency ranges, and establish a co-adjacent frequency relationship with the ground as needed, thereby solving the problem of contradiction between satellite coverage and spectrum utilization under the existing single interference avoidance method of satellite-ground frequency sharing, and realizing the co-existence of satellite and ground co-adjacent frequencies under the coverage of the entire satellite.

[0141] By multiplexing the beam hopping patterns and on-board functional modules in the beam hopping system and uploading the beam hopping and frequency adjustment patterns through the second non-ground network base station on board the satellite, the on-board buffer requirement can be reduced.

[0142] In the implementation of the invention, since only the wave control unit on the satellite needs to add a digital filter configuration solution unit, the rest can largely reuse the beam hopping system functions of the ground control, that is, to achieve dynamic sharing of the satellite-ground uplink frequency. At the same time, the satellite-ground transmission information also reuses the beam hopping pattern, and there is no need to upload a huge mapping table of wave position and frequency. The implementation is simple and can be applied to scenarios where user terminals (such as mobile phones) are directly connected to satellites below 6GHz and the low frequency band resources are tight and the spectrum resource utilization rate is low, reducing the difficulty of low-orbit satellite networks to allocate independent frequency bands for user terminals.

[0143] See also Fig.11 , Fig.11 Another flow chart of a satellite-ground uplink frequency dynamic sharing method provided by an embodiment of the present invention, wherein the satellite-ground uplink frequency dynamic sharing method is applied to a network device and includes:

[0144] S21: Upload the beam hopping and frequency adjustment pattern to the satellite, so that the satellite performs the following operations:

[0145] According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0146] The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0147] In an optional embodiment, the mapping relationship includes a second mapping table between wave positions and frequencies, wherein the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position;

[0148] The method further comprises:

[0149] The frequency range corresponding to each wave position of the satellite service indicated by the second mapping table is adjusted to obtain an updated second mapping table.

[0150] In an optional embodiment, when the beam hopping and frequency adjustment pattern is generated according to the second mapping table, and the network device is a first non-terrestrial network base station on the ground, the method further includes:

[0151] A frequency switching schedule is sent to the satellite; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

[0152] In an optional embodiment, the beam hopping and frequency adjustment pattern is sent by a first non-ground network base station on the ground at a third set time before the critical time for adjusting the filtering frequency range of the beam pointed to by the satellite; the third set time is determined based on the delay of the feed link or the measurement and control link and the frequency switching time of the corresponding beam.

[0153] In an optional embodiment, the frequency switching time corresponding to each beam position pointing in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the time when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

[0154] In an optional embodiment, the frequency switching time corresponding to each wave position in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the frequency switching time of the corresponding wave position and the beam jumping time, wherein the beam jumping time includes the period and time slot of the corresponding wave position.

[0155] It should be noted that the working process of the satellite-to-ground uplink frequency dynamic sharing method applied to the network device described in the embodiment of the present invention can refer to the working process of the satellite-to-ground uplink frequency dynamic sharing method applied to the satellite described in the above embodiment, and the technical effect achieved is the same as the satellite-to-ground uplink frequency dynamic sharing method applied to the satellite described in the above embodiment, which will not be repeated here.

[0156] See also Fig.12 , Fig.12 The present invention provides a structural block diagram of a satellite-ground uplink frequency dynamic sharing device, wherein the satellite-ground uplink frequency dynamic sharing device is applied to a satellite and includes:

[0157] A calculation module 11 is used to calculate the uplink beam hopping direction, beam hopping time and digital filter configuration according to the beam hopping and frequency adjustment pattern; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0158] The configuration module 12 is used to dynamically adjust the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0159] In an optional embodiment, the device further includes:

[0160] A first pattern receiving module, configured to receive the beam hopping and frequency adjustment pattern sent by a first non-terrestrial network base station on the ground;

[0161] Among them, the beam hopping and frequency adjustment pattern is generated by the first non-ground network base station on the ground according to the mapping relationship between the wave position and the frequency formulated by itself or obtained through the satellite-ground intelligent cooperation network element, and then the uplink frequency is associated with the beam hopping pattern.

[0162] In an optional embodiment, the device further includes:

[0163] A pattern parsing module, configured to parse the received beam hopping and frequency adjustment pattern after receiving the beam hopping and frequency adjustment pattern sent by the first non-terrestrial network base station on the ground;

[0164] The beam hopping and frequency adjustment pattern is uploaded by the first non-ground network base station on the ground through a feeder link or a measurement and control link.

[0165] In an optional embodiment, the device further includes:

[0166] A second pattern receiving module, configured to receive the beam hopping and frequency adjustment pattern sent by a second non-ground network base station on board the satellite;

[0167] Among them, the beam hopping and frequency adjustment pattern is generated by the satellite-borne second non-ground network base station according to the mapping relationship between the wave position and the frequency formulated by itself or uploaded by the satellite-ground intelligent cooperation network element, and then the uplink frequency is associated with the beam hopping pattern.

[0168] In an optional embodiment, the device further includes:

[0169] A mapping relationship receiving module, used for receiving the mapping relationship between the wave position and the frequency sent by the satellite-to-ground intelligent collaborative network element when the mapping relationship between the wave position and the frequency is uploaded by the satellite-to-ground intelligent collaborative network element; wherein the mapping relationship is uploaded by the second non-ground network base station on board the satellite through a feeder link or a measurement and control link;

[0170] The mapping relationship forwarding module is used to parse the received mapping relationship and send the parsed mapping relationship to the second non-ground network base station on board the satellite to instruct the second non-ground network base station on board the satellite to generate the beam hopping and frequency adjustment pattern.

[0171] In an optional embodiment, the beam hopping and frequency adjustment pattern indicates that the same beam position pointing corresponds to the same uplink frequency.

[0172] In an optional embodiment, the configuration module 12 includes:

[0173] A first configuration advance sending module is used to send the frequency configuration corresponding to each beam in the next stage to the corresponding beam digital filtering function for configuration in advance of a first set time according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration;

[0174] The digital filtering configuration includes the frequency configuration of the corresponding uplink beam jump pointing downward, and the first set time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

[0175] In an optional embodiment, the mapping relationship includes a second mapping table between wave positions and frequencies, wherein the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position;

[0176] The device also includes:

[0177] The frequency switching schedule receiving module is used to receive the frequency switching schedule sent by the first non-ground network base station on the ground; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective period of this wave control instruction.

[0178] In an optional embodiment, the configuration module 12 includes:

[0179] A second configuration advance sending module is used to send the frequency configuration corresponding to each beam in the next stage to the corresponding beam digital filtering function for configuration after receiving the second set time corresponding to each beam from the frequency switching schedule;

[0180] Among them, the frequency configuration corresponding to each beam is determined according to the uplink beam jump direction, the beam jump time and the digital filtering configuration. The second setting time of each beam is determined according to the frequency switching moment of the corresponding beam and the first setting time. The first setting time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

[0181] In an optional embodiment, the frequency switching moment corresponding to each beam position pointing is determined by the first non-ground network base station on the ground based on the time difference between the moment when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

[0182] It should be noted that the working process of each module in the satellite-to-ground uplink frequency dynamic sharing device applied to a satellite described in an embodiment of the present invention can refer to the working process of the satellite-to-ground uplink frequency dynamic sharing method applied to a satellite described in the above embodiment, and the technical effect achieved is also the same as the satellite-to-ground uplink frequency dynamic sharing method applied to a satellite described in the above embodiment, which will not be repeated here.

[0183] See also Fig.13 , Fig.13 The present invention provides a structural block diagram of a satellite-to-ground uplink frequency dynamic sharing device, which is applied to a network device and includes:

[0184] The pattern uploading module 21 is used to upload the beam hopping and frequency adjustment pattern to the satellite, so that the satellite performs the following operations:

[0185] According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency;

[0186] The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

[0187] In an optional embodiment, the mapping relationship includes a second mapping table between wave positions and frequencies, wherein the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position;

[0188] The device also includes:

[0189] The second mapping table adjustment module is used to adjust the frequency range corresponding to each wave position of the satellite service indicated by the second mapping table to obtain an updated second mapping table.

[0190] In an optional embodiment, when the beam hopping and frequency adjustment pattern is generated according to the second mapping table, and the network device is a first non-terrestrial network base station on the ground, the apparatus further includes:

[0191] A frequency switching schedule sending module is used to send a frequency switching schedule to the satellite; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

[0192] In an optional embodiment, the beam hopping and frequency adjustment pattern is sent by a first non-ground network base station on the ground at a third set time before the critical time for adjusting the filtering frequency range of the beam pointed to by the satellite; the third set time is determined based on the delay of the feed link or the measurement and control link and the frequency switching time of the corresponding beam.

[0193] In an optional embodiment, the frequency switching time corresponding to each beam position pointing in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the time when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

[0194] In an optional embodiment, the frequency switching time corresponding to each wave position in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the frequency switching time of the corresponding wave position and the beam jumping time, wherein the beam jumping time includes the period and time slot of the corresponding wave position.

[0195] It should be noted that the working process of each module in the satellite-to-ground uplink frequency dynamic sharing device applied to the network device described in the embodiment of the present invention can refer to the working process of the satellite-to-ground uplink frequency dynamic sharing method applied to the network device described in the above embodiment, and the technical effect achieved is also the same as the satellite-to-ground uplink frequency dynamic sharing method applied to the network device described in the above embodiment, which will not be repeated here.

[0196] See also Fig.14 , Fig.14 1 is a structural block diagram of a satellite-to-ground uplink frequency dynamic sharing device provided in an embodiment of the present invention. The satellite-to-ground uplink frequency dynamic sharing device includes a processor 31, a memory 32, and a computer program stored in the memory 32 and executable on the processor 31. When the processor 31 executes the computer program, the steps in the above-mentioned satellite-to-ground uplink frequency dynamic sharing method embodiments are implemented, such as steps S11 to S12 or steps S21 to S23.

[0197] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory 32 and executed by the processor 31 to complete the present invention. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program in the satellite-to-ground uplink frequency dynamic sharing device.

[0198] The satellite-to-ground uplink frequency dynamic sharing device may include, but is not limited to, a processor 31 and a memory 32. Those skilled in the art may understand that the schematic diagram is only an example of the satellite-to-ground uplink frequency dynamic sharing device, and does not constitute a limitation on the satellite-to-ground uplink frequency dynamic sharing device, and may include more or fewer components than shown in the figure, or combine certain components, or different components, for example, the satellite-to-ground uplink frequency dynamic sharing device may also include input and output devices, network access devices, buses, etc.

[0199] The processor 31 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, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor 31 is the control center of the satellite-to-ground uplink frequency dynamic sharing device, and uses various interfaces and lines to connect various parts of the entire satellite-to-ground uplink frequency dynamic sharing device.

[0200] The memory 32 can be used to store the computer program and / or module. The processor 31 realizes various functions of the satellite-ground uplink frequency dynamic sharing device by running or executing the computer program and / or module stored in the memory 32 and calling the data stored in the memory 32. The memory 32 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 32 can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0201] Wherein, if the module / unit integrated in the satellite-to-ground uplink frequency dynamic sharing device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor 31. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0202] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0203] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, many improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A satellite-to-ground uplink frequency dynamic sharing method, characterized in that: Applications in satellites include: According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency; The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

2. The satellite-to-ground uplink frequency dynamic sharing method according to claim 1, characterized in that: The method further comprises: Receive the beam hopping and frequency adjustment pattern sent by the first non-ground network base station on the ground; wherein the beam hopping and frequency adjustment pattern is generated by the first non-ground network base station on the ground based on the mapping relationship between the wave position and the frequency generated by itself or obtained through the satellite-ground intelligent collaborative network element, and the uplink frequency is associated with the beam hopping pattern.

3. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 2, characterized in that: After receiving the beam hopping and frequency adjustment pattern sent by the first non-terrestrial network base station on the ground, the method further includes: The received beam hopping and frequency adjustment pattern is parsed; wherein the beam hopping and frequency adjustment pattern is uploaded by the first non-ground network base station on the ground through a feeder link or a measurement and control link.

4. The satellite-to-ground uplink frequency dynamic sharing method according to claim 1, characterized in that: The method further comprises: Receive the beam hopping and frequency adjustment pattern sent by the second non-ground network base station on board the satellite; wherein the beam hopping and frequency adjustment pattern is generated by the second non-ground network base station on board the satellite based on the mapping relationship between the wave position and the frequency generated by itself or uploaded by the satellite-ground intelligent collaborative network element, and the uplink frequency is associated with the beam hopping pattern.

5. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 4, characterized in that: When the mapping relationship between the wave position and the frequency is uploaded by the satellite-ground intelligent collaborative network element, the method further includes: Receiving a mapping relationship between wave positions and frequencies sent by the satellite-ground intelligent collaborative network element; wherein the mapping relationship is uploaded by a second non-ground network base station on board the satellite through a feeder link or a measurement and control link; The received mapping relationship is parsed, and the parsed mapping relationship is sent to the satellite-borne second non-terrestrial network base station to instruct the satellite-borne second non-terrestrial network base station to generate the beam hopping and frequency adjustment pattern.

6. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 1, characterized in that: The beam hopping and frequency adjustment pattern indicates that the same beam position pointing corresponds to the same uplink frequency.

7. The satellite-to-ground uplink frequency dynamic sharing method according to claim 1, characterized in that: The dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration includes: According to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration, the frequency configuration corresponding to each beam in the next stage is sent to the corresponding beam digital filtering function for configuration in advance by a first set time; The digital filtering configuration includes the frequency range required to configure the beam digital filtering function corresponding to the corresponding uplink beam pointing wave position, and the first set time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

8. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 2, characterized in that: The mapping relationship includes a second mapping table between wave positions and frequencies, wherein the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position; The method further comprises: A frequency switching schedule is received from a first non-ground network base station on the ground; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

9. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 8, characterized in that: The dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration includes: After receiving the second set time corresponding to each beam from the frequency switching schedule, the frequency configuration corresponding to each beam in the next stage is sent to the corresponding beam digital filtering function for configuration; Among them, the frequency configuration corresponding to each beam is determined according to the uplink beam jump direction, the beam jump time and the digital filtering configuration. The second setting time of each beam is determined according to the frequency switching moment of the corresponding beam and the first setting time. The first setting time indicates the delay required for the instruction transmission and configuration of the beam digital filtering function sliding window.

10. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 8, characterized in that: The frequency switching time corresponding to each beam position pointing is determined by the first non-ground network base station on the ground according to the time difference between the time when the satellite receives the beam hopping and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

11. A satellite-to-ground uplink frequency dynamic sharing method, characterized in that: Applied to network equipment, including: The beam hopping and frequency adjustment patterns are uploaded to the satellite so that the satellite performs the following operations: According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency; The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

12. The satellite-to-ground uplink frequency dynamic sharing method according to claim 11, characterized in that: The method further comprises: According to the mapping relationship between the beam position and the frequency generated by itself or uploaded by the satellite-ground intelligent cooperation network element, the uplink frequency is associated with the beam hopping pattern to generate the beam hopping and frequency adjustment pattern.

13. The satellite-to-ground uplink frequency dynamic sharing method according to claim 11, characterized in that: The mapping relationship includes a second mapping table between wave positions and frequencies, wherein the second mapping table indicates a dynamic mapping between each wave position of the satellite service and a frequency range corresponding to the corresponding wave position; The method further comprises: The frequency range corresponding to each wave position of the satellite service indicated by the second mapping table is adjusted to obtain an updated second mapping table.

14. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 13, characterized in that: When the beam hopping and frequency adjustment pattern is generated according to the second mapping table, and the network device is a first non-terrestrial network base station on the ground, the method further includes: A frequency switching schedule is sent to the satellite; wherein the frequency switching schedule indicates the frequency switching time and corresponding switching frequency of each wave position pointing within the effective time of this wave control instruction.

15. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 14, characterized in that: The beam hopping and frequency adjustment pattern is sent by the first non-ground network base station on the ground at the third set time before the critical time for adjusting the filter frequency range of the beam pointed to by the satellite; the third set time is determined according to the delay of the feed link or the measurement and control link and the frequency switching time of the corresponding beam.

16. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 14, characterized in that: The frequency switching time corresponding to each beam position pointing in the frequency switching time table is determined by the first non-ground network base station on the ground based on the time difference between the time when the satellite receives the hopping beam and frequency adjustment pattern and the critical time of the filter frequency range adjustment of the corresponding beam.

17. The satellite-to-ground uplink frequency dynamic sharing method as claimed in claim 14, characterized in that: The frequency switching time corresponding to each wave position in the frequency switching time table is determined by the first non-ground network base station on the ground according to the time difference between the frequency switching time of the corresponding wave position and the beam hopping time, wherein the beam hopping time includes the period and time slot of the corresponding wave position.

18. A satellite-to-ground uplink frequency dynamic sharing device, characterized in that: Applications in satellites include: A calculation module is used to calculate the uplink beam hopping direction, beam hopping time and digital filter configuration according to the beam hopping and frequency adjustment pattern; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency; The configuration module is used to dynamically adjust the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

19. A satellite-to-ground uplink frequency dynamic sharing device, characterized in that: Applied to network equipment, including: The pattern uploading module is used to upload the beam hopping and frequency adjustment pattern to the satellite, so that the satellite performs the following operations: According to the beam hopping and frequency adjustment pattern, the uplink beam hopping direction, beam hopping time and digital filter configuration are calculated; wherein the beam hopping and frequency adjustment pattern is determined according to the mapping relationship between the beam position and the frequency; The frequency configuration of the beam digital filtering function corresponding to each uplink beam is dynamically adjusted according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration.

20. A satellite-to-ground uplink frequency dynamic sharing device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the satellite-to-ground uplink frequency dynamic sharing method as described in any one of claims 1 to 10 or the satellite-to-ground uplink frequency dynamic sharing method as described in any one of claims 11 to 17 is implemented.

21. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the satellite-to-ground uplink frequency dynamic sharing method as described in any one of claims 1 to 10 or the satellite-to-ground uplink frequency dynamic sharing method as described in any one of claims 11 to 17.

22. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by a processor, the satellite-to-ground uplink frequency dynamic sharing method as described in any one of claims 1 to 10 or the satellite-to-ground uplink frequency dynamic sharing method as described in any one of claims 11 to 17 is implemented.

Images