Airborne ultrashort wave multi-link common antenna communication system and method

Abstract

The invention discloses an airborne ultra-short wave multi-link common antenna communication system and method, and belongs to the field of airborne ultra-short wave communication, and the method comprises the following steps: under the scheduling of a control management unit, a plurality of ultra-short wave frequency band communication links share two pairs of antennas to receive and transmit signals. Under the condition that limited antenna resources are configured, the airspace coverage rate of a plurality of airborne communication links can be improved, the hardware resource overhead of a transmitting channel is reduced, meanwhile, different resource conflict resolution strategies are provided according to task requirements, and the reliability of the communication links in different task scenes is ensured.

Description

Technical Field

[0001] The present invention relates to the field of airborne ultra-short wave communications, and more specifically, to an airborne ultra-short wave multi-link shared antenna communication system and method. Background Art

[0002] Airborne ultra-short wave communication systems use 30-512MHz radio waves to transmit information for communication, and the main path is space line-of-sight propagation. The traditional airborne ultra-short wave communication link consists of a pair of ultra-short wave antennas and an ultra-short wave transceiver with 1 receiving and 1 transmitting channel. When the airborne system needs to configure multiple ultra-short wave links, multiple antennas and multiple transceivers are required.

[0003] During aircraft maneuvers, such as circling and turning, the antennas of both parties are blocked by the aircraft body, and the antenna gain decreases, which will lead to insufficient communication link margin, resulting in communication interruption or intermittent communication during flight. Therefore, new airborne ultra-short wave communication links are usually configured with two antennas and two receiving channels for dual-antenna diversity reception to improve the reception airspace coverage. If N links all require dual-antenna diversity, multiple antennas must be configured, which consumes too much antenna resources. However, some airborne platforms are limited by factors such as installation location, volume, and weight, and cannot be configured with two antennas for each communication link. Usually, a trade-off is made, and a certain link is selected to provide dual-antenna diversity reception capability, while the remaining links are still single antennas.

[0004] Through the above analysis, the current airborne ultra-short wave communication system has the following shortcomings:

[0005] 1) For a single-antenna single-radio communication system, adding a communication link requires adding antennas, which are independent of each other, and the transceiver hardware resources cannot be reused. This chimney-style architecture has a large hardware resource overhead and is not conducive to system expansion;

[0006] 2) For dual-antenna ultra-short wave communication systems, multiple ultra-short wave links need to use two antennas. Compared with single-antenna communication systems, the demand for antenna resources increases. In order to balance performance and overhead, some platforms can usually only provide dual-antenna capabilities for some links, while the remaining links are still single-antenna, and the problem of unreliable communication still exists. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an airborne ultra-short wave multi-link shared antenna communication system and method. Based on the original airborne ultra-short wave functional dual antenna diversity reception, the airborne same-frequency band multi-functional multi-antenna resources are integrated. Under the scheduling of the communication control management unit, the multi-functional shared antenna improves the antenna resource utilization rate and the link airspace coverage rate.

[0008] The object of the present invention is achieved through the following solutions:

[0009] An airborne ultra-short wave multi-link shared antenna communication system comprises: a dual-channel transmission channel and a routing unit, a plurality of functional links and a communication management unit; the functional link comprises a digital processing unit, a first receiving channel and a second receiving channel, and the first receiving channel and the second receiving channel are arranged in the digital processing unit; the plurality of functional links share the dual-channel transmission channel and the routing unit, and the received signal enters the first receiving channel and the second receiving channel of the corresponding functional link through the transmission channel and the routing unit for processing, is demodulated in the digital processing unit, and finally performs voice or data processing; the baseband signal transmitted by the digital processing unit is sent to the transmission channel through the routing unit for processing, and is then radiated through the antenna.

[0010] Furthermore, it also includes two antennas, both of which are connected to the transmission channel and the routing unit, and multiple functional links share the two antennas.

[0011] Furthermore, it also includes a multi-channel power division module and a digital signal routing module. The received signals of the two antennas enter the first receiving channel and the second receiving channel of each functional link after multi-channel power division; the baseband signals generated by multiple digital processing units are selected by the digital signal routing module and sent to the two transmitting channels for processing.

[0012] Furthermore, it also includes a frequency conversion module, an amplification module, a filtering module and an AD sampling processing module, which are used to perform frequency conversion, amplification, filtering and AD sampling processing in the first receiving channel and the second receiving channel.

[0013] Furthermore, the communication management unit includes a transmission resource application response control module, which is used to decide whether to respond to its current transmission resource application according to the conflict matrix when each link initiates a link resource request. If there is no conflict at this time, the resource request is successful, the current transmission is allowed, and the request result is returned as "successful". The corresponding transmission channel is controlled to operate at the current link frequency and mode, and then its baseband data is sent to the DA module, and then filtered, frequency converted, excitation amplified and power amplified, and finally a corresponding frequency radio frequency signal is generated and radiated through the requested antenna; if there is a resource conflict, the other transmission resource conflict matrix is ​​queried. If there is no conflict, the resource request is successful and the current transmission is allowed; if there is a conflict, the resource request fails, and the request result is returned as "failure".

[0014] Furthermore, the communication management unit also includes an updating module, which is used for each link to update the link status in real time during the working process and send it to the communication control management unit.

[0015] Furthermore, the link resource request includes transmitting antenna resources that are expected to be used.

[0016] Furthermore, the link status includes T / R / I, wherein T represents transmission; R represents reception; and I represents idle.

[0017] An airborne ultra-short wave multi-link shared antenna communication method, based on the system as described above, comprises the following steps:

[0018] The communication control management scheduling unit is used to provide conflict resolution strategies, generate conflict matrices in real time according to different task requirements, and dynamically allocate transmission resources based on matrix input and output.

[0019] Furthermore, the communication control management scheduling unit is used to provide a conflict resolution strategy, generate a conflict matrix in real time according to different task requirements, and dynamically allocate transmission resources based on matrix input and output, specifically including the following sub-steps:

[0020] The system sets the conflict resolution strategy. If it is an allocation strategy based on task priority, the priority of each link should also be specified. If not specified, the default link priority is link 1> link 2> link 3>…> link N, and the conflict matrix of transmission resource 1 and the conflict matrix of transmission resource 2 are generated;

[0021] Initialize the parameters of N communication links, then set the receiving channels of each link to work at the corresponding working frequency. When the transmission resource application mark of any link is valid, query the conflict matrix corresponding to the preferred transmission resource to determine whether there is a resource conflict at present, and if there is no conflict, allow this transmission. If there is a conflict, query the conflict matrix corresponding to another transmission resource to determine whether there is a resource conflict at present. If there is no conflict, allow this transmission. If there is a conflict, decide whether to transmit according to the conflict resolution strategy;

[0022] When applying for resources, query the resource conflict matrix based on the priority strategy. If a certain priority function applies for resources, query the conflict matrix of the corresponding applied antenna. The conflict matrices of the two antennas are the same. The corresponding priority function applies for resources. The resource conflict situation of the corresponding priority column is queried for the working status of each function. If there is no conflict, the resource is allowed to be used for transmission. If there is a resource conflict, the resource cannot be used for transmission temporarily. If the conflict matrices of the two antennas are both conflicting, compare the priorities of the link applied for this time and the two links that are occupying the resources, and allow the high-priority link to preempt the low-priority link resources for transmission.

[0023] or,

[0024] When applying for resources, query the resource conflict matrix based on idle occupancy. If a link applies for resources, query the conflict matrix of the corresponding applied antenna. The conflict matrices of the two antennas are the same. When applying for resources for the corresponding link, query the resource conflict situation of the corresponding column of the corresponding link for the working status of each function. If there is no conflict, the resource is allowed to be used for transmission; if there is a resource conflict, the resource cannot be used for transmission.

[0025] The beneficial effects of the present invention include:

[0026] (1) Under the communication control management scheduling, the present invention allows multiple ultra-short wave frequency band links to share the ultra-short wave antenna, which not only reduces the antenna resources and transmission channel hardware overhead, but also improves the airspace coverage of the communication link. At the same time, different resource conflict resolution strategies are provided according to task requirements to ensure the reliability of the communication link in different task scenarios.

[0027] (2) The multiple ultra-short wave links of the present invention can all be received by dual antenna diversity, thereby improving the airspace coverage of all links.

[0028] (3) The flexible conflict resolution strategy based on task planning of the present invention ensures that each functional link operates normally and orderly under the condition of multiplexing antenna resources, thereby improving the utilization rate of antenna resources, reducing the hardware overhead of antennas and transmission channels, and ensuring the reliability of communication links.

[0029] (4) The present invention can be used to allow multiple ultra-short wave frequency band communication links to share two antennas for signal reception and transmission under the control of the control management unit. The present invention can improve the airspace coverage of multiple airborne communication links and reduce the hardware resource overhead of the transmission channel when limited antenna resources are configured. At the same time, different resource conflict resolution strategies are provided according to mission requirements to ensure the reliability of communication links in different mission scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 It is a working principle diagram of an embodiment of the present invention;

[0032] Figure 2 This is a workflow diagram of conflict resolution of a communication management unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] All features disclosed in all embodiments in this specification, or steps in all methods or processes implicitly disclosed, except for mutually exclusive features and / or steps, can be combined and / or expanded or replaced in any manner.

[0034] In order to solve the above problems existing in the existing airborne ultra-short wave communication system, the present invention proposes an airborne ultra-short wave multi-link shared antenna communication system and method. In the technical concept, by integrating the airborne same-band multi-function multi-antenna resources, the antenna resource utilization rate is improved, the antenna and transmission channel hardware overhead is reduced, and the airspace coverage of all links is improved. At the same time, different resource conflict resolution strategies are designed according to task requirements to ensure the reliability of communication links in different task scenarios.

[0035] In a further design, multiple communication links reuse two antennas and transmission channel resources, which improves the link spatial coverage and ensures the reliability of the communication link, while reducing antenna configuration and hardware resources and improving the utilization of antenna and hardware resources.

[0036] Multi-function shared antennas and transmission channel resources involve resource competition. In order to ensure the orderly operation of multiple links, the communication control management scheduling unit provides a flexible conflict resolution strategy, generates a conflict matrix in real time according to different task requirements, and dynamically allocates transmission resources based on the matrix input and output. The communication control management scheduling unit provides the following two conflict resolution strategies:

[0037] Strategy 1: Based on the task priority allocation strategy, it is mainly used in the mission scenario where the links of this flight mission have obvious priority differences. This strategy provides a configurable priority list. The communication control management scheduling unit generates a conflict matrix based on the priority list configured in real time. The basic principle is that the transmission priority of the same priority link is higher than its reception priority, the reception priority of the high priority function is higher than the transmission priority of the low priority function and the idle priority of any priority, and the transmission priority of the high priority function is higher than the transmission priority of the low priority function.

[0038] Strategy 2: Based on idle occupation strategy, it is mainly used in the mission scenario where there is no obvious priority distinction between the links in this flight mission. Under this strategy, there is no priority distinction between the links in the conflict matrix, and it is only related to the current status of the sending, receiving, and idle occupation resources of each link.

[0039] In a further embodiment, the first aspect of the present invention provides an airborne ultra-short wave multi-link shared antenna communication system. Figure 1. N functional links share two antennas. When receiving, the signals received by the two antennas enter the receiving channels 1 and 2 of each functional link after multi-way power division for frequency conversion, amplification, filtering and AD sampling processing, and then demodulate in the digital signal processing unit, and finally perform voice or data processing. When transmitting, each link initiates a link resource request (including the antenna resources expected to be used for transmission). The communication control management unit decides whether to respond to its current transmission resource application based on the conflict matrix. If there is no conflict at this time, the resource request is successful, allowing this transmission, and returning the request result as "successful". The corresponding transmission channel is controlled to work at the current link frequency and mode, and then its baseband data is sent to the DA, and then filtering, frequency conversion, excitation amplification and power amplification are performed, and finally the corresponding frequency RF signal is generated and radiated through the requested antenna. If there is a resource conflict, the conflict matrix of another transmission resource is queried. If there is no conflict, the resource request is successful and the transmission is allowed; if there is a conflict, the success or failure of the resource request is determined according to the conflict resolution strategy. During the working process, each link updates the link status (T / R / I, where T: transmission; R: reception; I: idle) in real time and sends it to the communication control management unit. Using this method, under the coordinated scheduling of the communication management unit, all functional links can share two antennas in an orderly manner, while ensuring the maximization of the transmission airspace coverage and reducing the antenna and transmission channel hardware resource overhead.

[0040] The second aspect of the present invention provides an airborne ultra-short wave multi-link shared antenna communication method. Figure 2 , the system sets the conflict resolution strategy. If it is an allocation strategy based on task priority, the priority of each link should also be specified (if not specified, the default link priority is link 1> link 2> link 3>...> link N), and the conflict matrix of transmission resource 1 and the conflict matrix of transmission resource 2 are generated. Initialize the parameters of N communication links, and then set the receiving channel of each link to work at the corresponding working frequency. When the transmission resource application mark of any link is valid, combined with the current working status of each link (T / R / I), query the conflict matrix corresponding to the preferred transmission resource to determine whether there is a resource conflict at present. If there is no conflict, allow this transmission. If there is a conflict, query the conflict matrix corresponding to another transmission resource to determine whether there is a resource conflict at present. If there is no conflict, allow this transmission. If there is a conflict, decide whether to transmit according to the conflict resolution strategy.

[0041] Refer to Table 1. When applying for resources, query the resource conflict matrix based on the priority strategy. If a certain priority function applies for resources, query the conflict matrix of the corresponding application antenna. The conflict matrices of the two antennas are the same. For example, when a priority 3 function applies for resources, query the resource conflict of the corresponding column of priority 3 for the working status of each function. If there is a ╳, it means there is a resource conflict and the resource cannot be used for transmission; if the corresponding column is all ○, there is no conflict and the resource is allowed to be used for transmission. If there is a conflict in the conflict matrices of both antennas, the high-priority function is allowed to preempt the low-priority function for transmission.

[0042] Table 1 Resource conflict matrix based on priority strategy

[0043]

[0044] Refer to Table 2. When applying for resources, query the resource conflict matrix based on idle occupancy. If a link applies for resources, query the conflict matrix of the corresponding antenna. The conflict matrices of the two antennas are the same. For example, when link 3 applies for resources, query the resource conflict of the corresponding column of link 3 for the working status of each function. If there is a ╳, it means there is a resource conflict and the resource cannot be used for transmission; if the corresponding column is all ○, there is no conflict and the resource can be used for transmission.

[0045] Table 2 Resource conflict matrix based on idle occupation strategy

[0046]

[0047]

[0048] It should be noted that within the scope of protection defined in the claims of the present invention, the following embodiments can be combined and / or expanded or replaced in any logical way from the above specific implementation methods, such as disclosed technical principles, disclosed technical features or implicitly disclosed technical features.

[0049] In other embodiments, including but not limited to the following embodiments:

[0050] Example 1

[0051] An airborne ultra-short wave multi-link shared antenna communication system comprises: a transmission channel and a routing unit, a plurality of functional links and a communication management unit; the functional link comprises a digital processing unit, a first receiving channel and a second receiving channel, and the first receiving channel and the second receiving channel are arranged in the digital processing unit; the plurality of functional links share the transmission channel and the routing unit, and the received signal enters the first receiving channel and the second receiving channel of the corresponding functional link through the transmission channel and the routing unit for processing, is demodulated in the digital processing unit, and finally performs voice or data processing; the baseband signal transmitted by the digital processing unit is sent to the transmission channel through the routing unit for processing, and is then radiated through the antenna.

[0052] Example 2

[0053] On the basis of embodiment 1, two antennas are further included, both of which are connected to the transmission channel and the routing unit, and multiple functional links share the two antennas.

[0054] Example 3

[0055] On the basis of Embodiment 2, it also includes a multi-channel power division module and a digital signal routing module. The received signals of the two antennas enter the first receiving channel and the second receiving channel of each functional link after multi-channel power division; the baseband signals generated by the multiple digital processing units are selected by the digital signal routing module to send two channels to the two transmission channels for processing;

[0056] Example 4

[0057] On the basis of Example 3, it also includes a frequency conversion module, an amplification module, a filtering module and an AD sampling processing module, which are used to perform frequency conversion, amplification, filtering and AD sampling processing in the first receiving channel and the second receiving channel.

[0058] Example 5

[0059] On the basis of any one of Embodiments 1 to 4, the communication management unit includes a transmission resource application response control module, which is used to determine whether to respond to its current transmission resource application according to the conflict matrix when each link initiates a link resource request. If there is no conflict at this time, the resource request is successful, the current transmission is allowed, and the request result is returned as "successful", and the corresponding transmission channel is controlled to work at the current link frequency and mode, and then its baseband data is sent to the DA module, and then filtering, frequency conversion, excitation amplification and power amplification are performed, and finally the corresponding frequency radio frequency signal is generated and radiated through the requested antenna; if there is a resource conflict, the other transmission resource conflict matrix is ​​queried, if there is no conflict, the resource request is successful, and the current transmission is allowed; if there is a conflict, the resource request fails, and the request result is returned as "failure". Further, if it is a priority-based conflict resolution strategy, the priority of the link applied for this time and the two links occupying the resources are compared. If the priority of the link applied for this time is higher, the high-priority link is allowed to seize the low-priority link resources for transmission, and the request result is returned as "successful"; if the priority is lower than the two links occupying the resources, the transmission is not allowed; the request result is returned as "failure".

[0060] Example 6

[0061] Based on Example 5, the communication management unit further includes an updating module, which is used for each link to update the status of the link in real time during operation and send it to the communication control management unit.

[0062] Example 7

[0063] Based on Embodiment 5, the link resource request includes transmitting antenna resources that are expected to be used.

[0064] Example 8

[0065] Based on Example 6, the link status includes T / R / I, where T represents transmission, R represents reception, and I represents idle.

[0066] Example 9

[0067] An airborne ultra-short wave multi-link shared antenna communication method, based on the system described in Example 1, comprises the following steps:

[0068] The communication control management scheduling unit is used to provide conflict resolution strategies, generate conflict matrices in real time according to different task requirements, and dynamically allocate transmission resources based on matrix input and output.

[0069] Example 10

[0070] On the basis of Example 9, the communication control management scheduling unit is used to provide a conflict resolution strategy, generate a conflict matrix in real time according to different task requirements, and dynamically allocate transmission resources based on matrix input and output, specifically including sub-steps:

[0071] The system sets the conflict resolution strategy. If it is an allocation strategy based on task priority, the priority of each link should also be specified. If not specified, the default link priority is link 1> link 2> link 3>…> link N, and the conflict matrix of transmission resource 1 and the conflict matrix of transmission resource 2 are generated;

[0072] Initialize the parameters of N communication links, then set the receiving channels of each link to work at the corresponding working frequency. When the transmission resource application mark of any link is valid, query the conflict matrix corresponding to the preferred transmission resource to determine whether there is a resource conflict at present, and if there is no conflict, allow this transmission. If there is a conflict, query the conflict matrix corresponding to another transmission resource to determine whether there is a resource conflict at present. If there is no conflict, allow this transmission. If there is a conflict, decide whether to transmit according to the conflict resolution strategy;

[0073] When applying for resources, query the resource conflict matrix based on the priority strategy. If a certain priority function applies for resources, query the conflict matrix of the corresponding applied antenna. The conflict matrices of the two antennas are the same. The corresponding priority function applies for resources. The resource conflict situation of the corresponding priority column is queried for the working status of each function. If there is no conflict, the resource is allowed to be used for transmission. If there is a resource conflict, the resource cannot be used for transmission temporarily. If the conflict matrices of the two antennas are both conflicted, compare the priorities of the link applied for this time and the two links that are occupying the resources, and allow the high-priority link to preempt the low-priority link resources for transmission.

[0074] or,

[0075] When applying for resources, query the resource conflict matrix based on idle occupancy. If a link applies for resources, query the conflict matrix of the corresponding applied antenna. The conflict matrices of the two antennas are the same. When applying for resources for the corresponding link, query the resource conflict situation of the corresponding column of the corresponding link for the working status of each function. If there is a resource conflict, the resource cannot be used for transmission; if there is no conflict, the resource is allowed to be used for transmission.

[0076] The units involved in the embodiments of the present invention may be implemented by software or hardware, and the units described may also be arranged in a processor. The names of these units do not, in some cases, limit the units themselves.

[0077] According to one aspect of an embodiment of the present invention, a computer program product or a computer program is provided, the computer program product or the computer program includes a computer instruction, and the computer instruction is stored in a computer-readable storage medium. A processor of a computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the method provided in the above various optional implementations.

[0078] As another aspect, an embodiment of the present invention further provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the method described in the above embodiment.

Claims

1. An airborne ultra-short wave multi-link shared antenna communication system, characterized in that: include: A dual-channel transmission channel and a routing unit, a plurality of functional links and a communication management unit; the functional link includes a digital processing unit, a first receiving channel and a second receiving channel; Multiple functional links share dual-channel transmission channels and routing units; After the received signal enters the first receiving channel and the second receiving channel of the corresponding functional link through the routing unit for processing, it is demodulated in the digital processing unit and finally voice or data processing is performed; The baseband signal transmitted by the digital processing unit is sent to the transmission channel through the routing unit for processing and then radiated through the antenna.

2. The airborne ultra-short wave multi-link shared antenna communication system according to claim 1, characterized in that: It also includes two antennas, both of which are connected to the transmission channel and the routing unit, and multiple functional links share the two antennas.

3. The airborne ultra-short wave multi-link shared antenna communication system according to claim 2, characterized in that: It also includes a receiving multi-channel power division module and a digital signal routing module. The received signals of the two antennas enter the first receiving channel and the second receiving channel of each functional link after multi-channel power division. The digital signal routing module selects two baseband signals generated by the multiple digital processing units and sends them to two transmission channels for processing.

4. The airborne ultra-short wave multi-link shared antenna communication system according to claim 3, characterized in that: It also includes a frequency conversion module, an amplification module, a filtering module and an AD sampling processing module, which are used to perform frequency conversion, amplification, filtering and AD sampling processing in the first receiving channel and the second receiving channel.

5. The airborne ultra-short wave multi-link shared antenna communication system according to any one of claims 1 to 4, characterized in that: The communication management unit includes a transmission resource application response control module, which is used to determine whether to respond to its current transmission resource application according to the conflict matrix when each link initiates a link resource request. If there is no conflict at this time, the resource request is successful, the current transmission is allowed, and the request result is returned as "successful", and the corresponding transmission channel is controlled to work at the current link frequency and mode, and then its baseband data is sent to the DA module, and then filtering, frequency conversion, excitation amplification and power amplification are performed, and finally a corresponding frequency radio frequency signal is generated and radiated through the requested antenna; If there is a resource conflict, the resource conflict matrix of another transmission is queried. If there is no conflict, the resource request is successful and the transmission is allowed; if there is a conflict, the resource request fails and the request result is returned as "failed".

6. The airborne ultra-short wave multi-link shared antenna communication system according to claim 5, characterized in that: The communication management unit also includes an updating module, which is used for updating the status of each link in real time during the working process and sending it to the communication control management unit.

7. The airborne ultra-short wave multi-link shared antenna communication system according to claim 5, characterized in that: The link resource request includes transmitting antenna resources that are desired to be used.

8. The airborne ultra-short wave multi-link shared antenna communication system according to claim 6, characterized in that: The link status includes T / R / I, where T represents transmission, R represents reception, and I represents idle.

9. An airborne ultra-short wave multi-link shared antenna communication method, characterized in that: The system according to claim 1 comprises the following steps: The communication control management scheduling unit is used to provide conflict resolution strategies, generate conflict matrices in real time according to different task requirements, and dynamically allocate transmission resources based on matrix input and output.

10. The airborne ultra-short wave multi-link shared antenna communication method according to claim 9, characterized in that: The communication control management scheduling unit is used to provide a conflict resolution strategy, generate a conflict matrix in real time according to different task requirements, and dynamically allocate transmission resources based on matrix input and output, specifically including sub-steps: The system sets the conflict resolution strategy. If it is a task priority-based allocation strategy, the priority of each link should also be specified. If not specified, the default link priority is link 1> link 2> link 3>…> link N. Generate a transmission resource 1 conflict matrix and a transmission resource 2 conflict matrix; Initialize the parameters of N communication links, then set the receiving channels of each link to work at the corresponding working frequency. When the transmission resource application mark of any link is valid, query the conflict matrix corresponding to the preferred transmission resource to determine whether there is a resource conflict at present, and if there is no conflict, allow this transmission. If there is a conflict, query the conflict matrix corresponding to another transmission resource to determine whether there is a resource conflict at present. If there is no conflict, allow this transmission. If there is a conflict, decide whether to transmit according to the conflict resolution strategy; When applying for resources, query the resource conflict matrix based on the priority strategy. If a certain priority function applies for resources, query the conflict matrix of the corresponding applied antenna. The conflict matrices of the two antennas are the same. The corresponding priority function applies for resources. The resource conflict situation of the corresponding priority column is queried for the working status of each function. If there is no conflict, the resource is allowed to be used for transmission. If there is a resource conflict, the resource cannot be used for transmission temporarily. If the conflict matrices of the two antennas are both conflicted, compare the priorities of the link applied for this time and the two links that are occupying the resources, and allow the high-priority link to preempt the low-priority link resources for transmission. or, When applying for resources, query the resource conflict matrix based on idle occupancy. If a link applies for resources, query the conflict matrix of the corresponding applied antenna. The conflict matrices of the two antennas are the same. When applying for resources for the corresponding link, query the resource conflict situation of the corresponding column of the corresponding link for the working status of each function. If there is a resource conflict, the resource cannot be used for transmission; if there is no conflict, the resource is allowed to be used for transmission.

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