A forest area phased array information transmission method, device and medium based on an ad hoc network

Abstract

The application discloses a kind of forest area phased array information transmission methods, equipment and medium based on ad hoc network, it is related to mobile communication access network networking technical field, including, according to topography enhanced beam adjacency table, the multi-hop link between forest information sending node to edge convergent node is received and sorted, and the next hop receiving relationship and backup receiving relationship of each hop are written in the beam pattern receiving mark corresponding, and generate topological beam coding bearing chain;Based on topological beam coding bearing chain, send service bearing frame, so that relay node obtains next hop forwarding direction according to received beam pattern receiving mark, and forwards service bearing frame according to main beam and auxiliary beam of corresponding hop section, generates core network connection record.The application realizes the cooperative receiving basis of main beam and auxiliary beam, and improves multi-hop transmission continuity and link reconstruction adaptability.

Description

Technical Field

[0001] This invention relates to the field of mobile communication access network technology, and in particular to a method, device and medium for transmitting phased array information in forest areas based on self-organizing networks. Background Technology

[0002] Forest communication scenarios typically involve mobile communication services such as patrol monitoring, fire awareness, video transmission, and emergency command. Conventional methods often employ wireless ad hoc network nodes to form multi-hop transmission links, and then connect forest-side data to the core network via access network aggregation nodes. For areas with complex coverage conditions, beamforming can be achieved using directional antennas or phased array antennas. Through neighbor discovery, link measurement, routing selection, and relay forwarding, information transmission between nodes can be maintained, enabling dispersed nodes within the forest area to achieve continuous networking and data transmission even in environments lacking fixed communication facilities.

[0003] Conventional methods for phased array ad hoc network transmission in forest areas still have two shortcomings. First, beam training mainly relies on the quality of direct links, failing to fully utilize stable reflection paths formed by hillsides, valleys, and tree trunks, making it difficult to convert reflection propagation into auxiliary carrying resources. Second, ad hoc network routing and phased array beam control are usually handled separately. Relay nodes need to rely on independent routing information to complete next-hop determination, and the beam pattern itself cannot directly carry next-hop and backup routing relationships. Summary of the Invention

[0004] In view of the aforementioned existing problems, the present invention is proposed.

[0005] Therefore, this invention provides a method for transmitting phased array information in forest areas based on self-organizing networks to solve the problems of insufficient utilization of reflection path assistance and insufficient coordination of beam control and multi-hop reception in the transmission of phased arrays in forest areas via self-organizing networks.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: In a first aspect, the present invention provides a method for phased array information transmission in forest areas based on ad hoc networks, comprising: collecting forest area communication task data and node deployment data, and performing wide-beam detection on the direct reachable area and terrain reflection area between adjacent nodes in combination with the forest area terrain occlusion and reflection propagation relationship to generate a forest area topology beam base map; based on the forest area topology beam base map, performing phased array beam training on the direct path and reflection path between adjacent nodes respectively to form a main beam and an auxiliary beam, and performing arrival time calibration and phase calibration to obtain a terrain enhancement beam adjacency list; and according to the terrain enhancement beam adjacency list, performing multi-hop detection between forest area information sending nodes and edge convergence nodes. The links are sorted for acceptance, and the next-hop acceptance relationship and backup acceptance relationship of each hop are written into the corresponding beam pattern acceptance mark to generate a topology beam-coded bearer chain. Service bearer frames are sent based on the topology beam-coded bearer chain, so that the relay nodes obtain the next-hop forwarding direction according to the received beam pattern acceptance mark, and forward the service bearer frames hop by hop according to the main beam and auxiliary beam of the corresponding hop segment to generate a core network connection record. According to the core network connection record and the topology beam-coded bearer chain, the main beam reception status and auxiliary beam enhancement status of each hop are adjusted for link attenuation, and the attenuated hop segment is written back to the terrain enhancement beam adjacency table to generate a reconstructed topology beam-coded bearer chain.

[0007] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the step of combining the forest area terrain shading and reflection propagation relationship to perform wide-beam detection on the directly accessible area and terrain reflection area between adjacent nodes is as follows: Extract the communication direction from forest area information sending nodes to edge aggregation nodes and the relationship between adjacent nodes from forest area communication task data and node deployment data; Based on the relationship between adjacent nodes, the terrain obstruction positions and reflection propagation positions between adjacent nodes are marked along the communication direction from the forest area information sending node to the edge convergence node, thus forming the propagation relationship between adjacent nodes; According to the propagation relationship between adjacent nodes, a wide-beam detection signal is sent from the forward node to the backward node among the adjacent nodes, and the receiving direction and receiving strength corresponding to the receiving node are recorded. Based on the receiving direction and receiving strength, the propagation range that can directly and stably receive wide-beam detection signals is defined as the directly accessible area, and the propagation range that can stably receive wide-beam detection signals after terrain reflection is defined as the terrain reflection area.

[0008] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the generation of the forest area topology beamformation is specifically as follows: Write each pair of adjacent nodes as a node edge, and write the corresponding forward node, backward node, directly accessible area, terrain reflection area and communication direction into the node edge record. By sequentially connecting the node edge records according to the communication direction from the forest area information sending node to the edge aggregation node, the basic topological beam map of the forest area is obtained.

[0009] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the formation of the main beam and auxiliary beam is specifically as follows: Based on the forest area topology beamline, the direct and reflection paths between adjacent nodes are delineated along the communication direction from the forest area information sending node to the edge aggregation node; Phased array beam training is performed on the direct path between adjacent nodes to calibrate the direct transmission and reception directions between forward and backward nodes, forming the main beam; Phased array beam training is performed on the reflection paths between adjacent nodes to calibrate the reflection transmission direction of the forward node toward the terrain reflection area and the reflection reception direction of the backward node, thus forming an auxiliary beam.

[0010] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the method for obtaining the terrain-enhanced beam adjacency table is as follows: Based on the arrival times of the training signals corresponding to the main beam and the auxiliary beam, the transmission delay of the auxiliary beam relative to the main beam is adjusted by arrival time compensation. At the same time, based on the reception phase of the training signals corresponding to the main beam and the auxiliary beam, the phase deviation of the auxiliary beam relative to the main beam is adjusted by phase compensation. The direct path, reflection path, main beam, auxiliary beam, arrival time calibration record, and phase calibration record between adjacent nodes are written into the same adjacency record to obtain the terrain enhancement beam adjacency table.

[0011] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the generation of core network connection records is specifically as follows: Based on the topological beam coding bearer chain, the forest area information sending node encapsulates the content to be transmitted into a service bearer frame, and loads the main beam and auxiliary beam according to the beam pattern receiving mark corresponding to the first hop; According to the first-hop-next-hop succession relationship in the topological beam coding bearer chain, the forest area information sending node sends the service bearer frame along the main beam, and performs same-hop auxiliary succession and transmission along the auxiliary beam according to the arrival time calibration record and phase calibration record; After receiving the service bearer frame, the relay node obtains the next hop forwarding direction according to the received beam pattern acceptance mark, and locates the corresponding next hop acceptance relationship in the topology beam-coded bearer chain. According to the next hop connection relationship, the relay node loads the main beam and auxiliary beam of the corresponding hop segment, and forwards the service bearer frame to the next relay node according to the arrival time calibration record and phase calibration record of the corresponding hop segment. Repeat the process of obtaining beam pattern acceptance marks and forwarding service bearer frames in the acceptance order of the topological beam-coded bearer chain until the service bearer frames reach the edge aggregation node. After receiving the service bearer frame, the edge aggregation node connects the service bearer frame to the core network and records the next hop connection relationship, beam pattern connection mark, main beam reception status, auxiliary beam enhancement status and core network access status, and generates a core network connection record.

[0012] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the link attenuation correction for each hop's main beam reception state and auxiliary beam enhancement state based on the core network connection record and topology beamcoding bearer chain is as follows: According to the succession order of the topology beam-coded bearer chain, each hop transmission record in the core network connection record is matched hop-by-hop with the corresponding hop segment in the topology beam-coded bearer chain. Based on the transmission records after hop-by-hop matching, the link attenuation is adjusted for the main beam reception state and the auxiliary beam enhancement state of each hop, and the hop segments where the main beam reception state declines and the auxiliary beam enhancement state is insufficient are marked. Write the forward node, backward node, main beam, auxiliary beam, and beam pattern handover mark corresponding to the hop where the main beam reception state is degraded and the auxiliary beam enhancement state is insufficient as the attenuation hop. Write the attenuation hop back to the corresponding adjacency record in the terrain enhancement beam adjacency table, and update the main beam reception status and auxiliary beam enhancement status in the corresponding adjacency record to generate an updated terrain enhancement beam adjacency table.

[0013] As a preferred embodiment of the forest area phased array information transmission method based on self-organizing network described in this invention, the generation and reconstruction of the topology beam-coded bearer chain is specifically as follows: Based on the updated terrain-enhanced beam adjacency table, the next-hop succession and backup succession relationships of the location of the attenuation hop are reordered, and the beam pattern succession markers of the corresponding hop are updated. According to the updated beam pattern, each hop is connected along the communication direction from the forest area information sending node to the edge aggregation node to generate the reconstructed topology beam-coded bearer chain.

[0014] In a second aspect, the present invention provides a computer device, including a memory and a processor, wherein the memory stores a computer program, wherein when the computer program is executed by the processor, it implements any step of the forest area phased array information transmission method based on ad hoc networks as described in the first aspect of the present invention.

[0015] Thirdly, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, it implements any step of the forest area phased array information transmission method based on ad hoc networks as described in the first aspect of the present invention.

[0016] The beneficial effects of this invention are as follows: by obtaining the terrain-enhanced beam adjacency table, the collaborative reception basis of the main beam and auxiliary beam is realized; then, by writing the next-hop reception relationship and backup reception relationship into the beam pattern reception mark through the topology beam coding bearer chain, the relay node forwards the service bearer frame hop by hop according to the beam pattern reception mark, which is used for information access and core network connection in forest area obstruction environment, and improves the continuity of multi-hop transmission and the adaptability of link reconfiguration. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of a phased array information transmission method for forest areas based on self-organizing networks.

[0019] Figure 2 A flowchart for obtaining the terrain-enhancing beam and topology beam coding bearer chain.

[0020] Figure 3 Line graph showing the success rate of multi-hop link forwarding.

[0021] Figure 4 A bar chart showing the frame loss rate of service bearers before and after reconstruction. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0025] Reference Figures 1-4 This is one embodiment of the present invention, which provides a method for transmitting phased array information in forest areas based on ad hoc networks, comprising the following steps: S1: Collect forest area communication task data and node deployment data, and combine the forest area terrain shading and reflection propagation relationship to perform wide beam detection on the direct access area and terrain reflection area between adjacent nodes to generate a forest area topology beam base map; S1.1: Collect forest area communication task data and node deployment data, and extract the communication direction from the forest area information sending node to the edge aggregation node and the relationship between adjacent nodes; Furthermore, the forest area information sending node identifier and the edge aggregation node identifier are entered through the task configuration interface of the edge aggregation node to form forest area communication task data; The positioning unit of each node measures the node position, and each node sends a node registration frame carrying the node identifier, node position and node coverage area. The edge aggregation node receives the node registration frame and forms node deployment data. Based on the forest area information sending node identifier and the edge aggregation node identifier, match the forest area information sending node location and the edge aggregation node location in the node deployment data, and extract the communication direction from the forest area information sending node location to the edge aggregation node location; Based on the node location and node coverage area, nodes with adjacent or overlapping coverage areas are arranged along the communication direction from the forest area information sending node to the edge aggregation node, and two adjacent nodes are written as adjacent node relationships.

[0026] S1.2: Based on the relationship between adjacent nodes, mark the terrain obstruction positions and reflection propagation positions between adjacent nodes along the communication direction from the forest area information sending node to the edge convergence node to form the propagation relationship between adjacent nodes; Furthermore, based on the relationship between adjacent nodes, the positions of the forward and backward nodes are obtained in groups, and a propagation check line from the forward node to the backward node is formed along the communication direction from the forest area information sending node to the edge convergence node. Within the propagation inspection range from the forward node to the backward node, the locations of mountain protrusions and valley bends are obtained through existing forest area surveying data, and the locations of dense forests are obtained through existing forest distribution data. The locations of mountain protrusions, valley bends, and dense forests are then spatially compared with the propagation inspection line, and the locations that block or weaken direct propagation are marked as terrain-blocking locations. Mark the locations on the slope boundary, valley sidewall, and densely forested boundary that can change the direction of wide beam propagation and point to the coverage area of ​​the backward node, and write the corresponding locations as reflection propagation positions; The forward node, backward node, terrain occlusion location, reflection propagation location, and communication direction are written into the same propagation record to form the propagation relationship between adjacent nodes.

[0027] S1.3: According to the propagation relationship between adjacent nodes, send a wide-beam detection signal from the forward node to the backward node among the adjacent nodes, and record the receiving direction and receiving strength when the backward node receives it; Furthermore, the forward node, backward node, terrain obstruction location, reflection propagation location and communication direction are obtained in groups according to the propagation relationship of adjacent nodes. The forward node is configured to cover the direction of the backward node according to the communication direction, so that the wide beam transmission range covers the direct propagation direction and reflection propagation location between the forward node and the backward node. The forward node transmits a wide-beam detection signal within the wide-beam transmission range. The backward node receives and detects the signal by measuring the direction of arrival and the direction of arrival of the wide-beam detection signal, which covers the direction of arrival of the forward node and the direction of arrival of the reflected propagation position. After detecting the wide-beam detection signal, the backward node measures the direction of arrival and the received power of the wide-beam detection signal. The backward node writes the direction of arrival of the wide-beam detection signal as the receiving direction and the received power of the wide-beam detection signal as the received strength. The backward node saves the receiving direction and the received strength according to the correspondence between the forward node and the backward node.

[0028] S1.4: Based on the receiving direction and receiving strength, the propagation range that can directly and stably receive wide beam detection signals is written as the directly accessible area, and the propagation range that can stably receive wide beam detection signals after terrain reflection is written as the terrain reflection area. Furthermore, based on the receiving direction and receiving strength stored for each group of adjacent nodes, the receiving records of the wide beam detection signal are organized; when the receiving direction falls within the range of the direct propagation direction, and the wide beam detection signal is demodulated by the backward node after being transmitted multiple times (example: 3-5 times), and the receiving strength remains unchanged during the multiple receptions, the corresponding wide beam coverage area is written as the directly accessible area. The reception record of the wide beam detection signal is organized according to the reflection propagation position. When the reception direction falls within the reflection arrival direction range corresponding to the reflection propagation position, and the wide beam detection signal is demodulated by the backward node after multiple consecutive transmissions, and the reception strength does not decrease during multiple consecutive receptions, the corresponding wide beam coverage area is written as the terrain reflection area. It should be noted that the direct propagation direction range is set according to the line connecting the forward node position to the backward node position, and is jointly limited by the transmission angle range of the wide beam detection signal and the reception angle range of the backward node; the reflection arrival direction range is set according to the line connecting the reflection propagation position to the backward node position; the wide beam coverage range is formed according to the transmission angle range of the wide beam detection signal and the reception direction recorded by the backward node.

[0029] S1.5: Write each group of adjacent nodes as a node edge, and write the forward node, backward node, directly accessible area, terrain reflection area and communication direction corresponding to the node edge into the node edge record. Furthermore, based on the relationship between adjacent nodes, two adjacent nodes are obtained in groups, and according to the communication direction from the forest area information sending node to the edge aggregation node, the node on the side closer to the forest area information sending node is written as the forward node, and the node on the side closer to the edge aggregation node is written as the backward node. The forward node and the backward node together form a node edge. The directly accessible area and terrain reflection area formed after the forward node sends a wide-beam detection signal to the backward node are written into the node edge, and the forward node, backward node, directly accessible area, terrain reflection area and communication direction are written into the same node edge record.

[0030] S1.6: Sequentially connect the node edge records according to the communication direction from the forest area information sending node to the edge aggregation node to obtain the basic topology beam map of the forest area; Furthermore, according to the communication direction from the forest area information sending node to the edge aggregation node, the node edge record with the forward node being the forest area information sending node is selected from the node edge record as the starting node edge record; Based on the backward node of the previous node edge record, select the node edge record whose forward node is the same as the backward node of the previous node edge record from the remaining node edge records, and continue the selected node edge record after the previous node edge record until the backward node of the last node edge record is the edge convergence node. Each node edge record after continuation is written into the same graph according to the preceding and following relationship, and the forward node, backward node, directly accessible area, terrain reflection area and communication direction are retained to obtain the basic graph of forest topology beam.

[0031] S2: Based on the forest topology beamline map, phased array beam training is performed on the direct and reflection paths between adjacent nodes to form the main beam and auxiliary beam, and arrival time and phase calibration are performed to obtain the terrain enhancement beam adjacency table. S2.1: Based on the forest area topology beamline, define the direct and reflection paths between adjacent nodes along the communication direction from the forest area information sending node to the edge aggregation node; Furthermore, based on the forest area topology beamline, node edge records are obtained sequentially according to the communication direction from the forest area information sending node to the edge convergence node, and forward nodes, backward nodes, directly accessible areas, and terrain reflection areas are obtained from the node edge records. Based on the positions of the forward and backward nodes, the propagation line between the forward and backward node positions that falls into the directly accessible area is defined as the direct path. Based on the forward node position, the terrain reflection area, and the backward node position, the propagation broken line path from the forward node position to the terrain reflection area and then to the backward node position is defined as the reflection path.

[0032] S2.2: Perform phased array beam training on the direct path between adjacent nodes, calibrate the direct transmission and direct reception directions between the forward and backward nodes, and form the main beam; Furthermore, based on the direct path between adjacent nodes, the forward node directs the transmit beam of the phased array antenna toward the direction of the backward node, and the backward node directs the receive beam of the phased array antenna toward the direction of the forward node. The forward node sends the direct training sequence along the direct path. The direct training sequence contains training content for frame synchronization, pilot identification and verification. The backward node receives the direct training sequence in the receiving direction from the forward node and records the receiving strength and demodulation status corresponding to different transmission directions and different receiving directions. Among the directional combinations that can stably demodulate the direct training sequence, select the directional combination with the highest received strength, write the transmission direction in the directional combination as the direct transmission direction, and write the reception direction in the directional combination as the direct reception direction. The forward node configures the phased array antenna's transmission phase according to the direct transmission direction, and the backward node configures the phased array antenna's reception phase according to the direct reception direction, forming the main beam. It should be noted that the direction combination that can stably demodulate directly to the training sequence refers to the candidate transmission direction and candidate reception direction combination in which the backward node completes frame synchronization, pilot identification and verification in multiple consecutive reception processes, and the reception strength remains unchanged in multiple consecutive reception processes.

[0033] S2.3: Perform phased array beam training on the reflection paths between adjacent nodes, calibrate the reflection transmission direction of the forward node toward the terrain reflection area and the reflection reception direction of the backward node, and form an auxiliary beam; Furthermore, based on the reflection path between adjacent nodes, the forward node directs the transmit beam of the phased array antenna toward the terrain reflection area, and the backward node directs the receive beam of the phased array antenna toward the direction of incoming wave corresponding to the terrain reflection area. The forward node sends a reflection training sequence along the reflection path. The reflection training sequence contains training content for frame synchronization, pilot identification, and verification. The backward node receives the reflection training sequence in the direction of incoming waves corresponding to the terrain reflection area and records the received strength and demodulation status corresponding to different reflection transmission directions and different reflection reception directions. Among the directional combinations that can stably demodulate the reflection training sequence, select the directional combination with the highest receiving strength, write the transmitting direction in the directional combination as the reflection transmitting direction, and write the receiving direction in the directional combination as the reflection receiving direction. The forward node configures the phased array antenna's transmission phase according to the reflection transmission direction, and the backward node configures the phased array antenna's reception phase according to the reflection reception direction, forming an auxiliary beam. It should be noted that the direction combination that can stably demodulate the reflection training sequence refers to the combination of candidate reflection transmission direction and candidate reflection reception direction in which the backward node completes frame synchronization, pilot identification and verification in multiple consecutive reception processes, and the reception strength remains unchanged in multiple consecutive reception processes.

[0034] S2.4: Based on the arrival times of the training signals corresponding to the main beam and the auxiliary beam, the arrival time of the transmission delay of the auxiliary beam relative to the main beam is adjusted. At the same time, based on the receiving phase of the training signals corresponding to the main beam and the auxiliary beam, the phase deviation of the auxiliary beam relative to the main beam is adjusted. Furthermore, in the same group of adjacent nodes, the forward node sends the direct training sequence according to the main beam and the reflected training sequence according to the auxiliary beam. The backward node receives the direct training sequence and the reflected training sequence respectively. The time when the direct training sequence completes frame synchronization is recorded as the arrival time of the training signal corresponding to the main beam, and the time when the reflected training sequence completes frame synchronization is recorded as the arrival time of the training signal corresponding to the auxiliary beam. Based on the arrival times of the training signals corresponding to the main beam and the training signals corresponding to the auxiliary beam, the arrival time difference of the auxiliary beam relative to the main beam is obtained, and the transmission time of the reflection training sequence is adjusted according to the arrival time difference to form an arrival time calibration record. The backward node obtains the training signal receiving phase corresponding to the main beam based on the pilot identification content in the direct training sequence, and obtains the training signal receiving phase corresponding to the auxiliary beam based on the pilot identification content in the reflection training sequence. Based on the training signal reception phase corresponding to the main beam and the training signal reception phase corresponding to the auxiliary beam, the phase difference between the auxiliary beam and the main beam is obtained, and the transmission and reception phases of the phased array antenna corresponding to the auxiliary beam are adjusted according to the phase difference to form a phase calibration record.

[0035] S2.5: Write the direct path, reflection path, main beam, auxiliary beam, arrival time calibration record and phase calibration record between adjacent nodes into the same adjacency record to obtain the terrain enhancement beam adjacency table; Furthermore, according to the communication direction from the forest area information sending node to the edge aggregation node, the forward and backward nodes corresponding to adjacent nodes are obtained in groups, and the forward and backward nodes are used as the node endpoints of the same adjacency record. Write the direct path, reflection path, main beam, auxiliary beam, arrival time calibration record, and phase calibration record between adjacent nodes into the same adjacency record; According to the communication direction from the forest area information sending node to the edge aggregation node, the adjacency records corresponding to each group of adjacent nodes are sequentially written into the same table to obtain the terrain enhancement beam adjacency table.

[0036] S3: Based on the terrain-enhanced beam adjacency list, sort the multi-hop links between the forest area information sending node and the edge aggregation node, and write the next hop connection relationship and backup connection relationship of each hop into the corresponding beam pattern connection mark to generate the topology beam-coded bearer chain. S3.1: Based on the terrain-enhanced beam adjacency list, along the communication direction from the forest area information sending node to the edge aggregation node, the adjacency records between adjacent nodes that can be continuously connected are formed into multi-hop links. Furthermore, based on the terrain-enhanced beam adjacency table, according to the communication direction from the forest area information sending node to the edge aggregation node, the adjacency record of the forward node that is the forest area information sending node is first obtained and written into the starting position of the multi-hop link; Based on the backward node in the adjacency record already written to the multi-hop link, search for the next adjacency record in the terrain enhancement beam adjacency table that is consistent with the forward node and the backward node, and continue to write the next adjacency record into the multi-hop link until the backward node in the last adjacency record written to the multi-hop link is the edge convergence node. It should be noted that consecutive adjacent records refer to records where the backward node of the preceding adjacent record is the same as the forward node of the following adjacent record, and both the preceding and following adjacent records contain direct path, reflection path, main beam, auxiliary beam, arrival time calibration record, and phase calibration record.

[0037] S3.2: Based on the main beam reception status and auxiliary beam enhancement status of each hop in the multi-hop link, sort the connection stability between adjacent nodes to obtain the main connection order of the multi-hop link; Furthermore, in the multi-hop link, the corresponding adjacency records are obtained hop by hop, and the main beam, auxiliary beam, arrival time calibration record and phase calibration record are obtained from the adjacency records; The forward node sends the direct training sequence according to the main beam, and the backward node records the demodulation status and reception strength of the direct training sequence. The case in which frame synchronization, pilot identification and verification are completed multiple times in a row and the reception strength does not decrease is written as the main beam reception status is stable. The case in which the above conditions are not met is written as the main beam reception status is declining. The forward node sends the reflection training sequence according to the auxiliary beam and performs transmission time adjustment and phase adjustment based on the arrival time calibration record and phase calibration record. The backward node records the demodulation status and received strength of the reflection training sequence. The case in which frame synchronization, pilot identification and verification are completed multiple times in a row and the received strength does not decrease is written as the auxiliary beam enhancement status is sufficient. The case in which the above conditions are not met is written as the auxiliary beam enhancement status is insufficient. The main beam reception status is stable, the main beam reception status is declining, the auxiliary beam enhancement status is sufficient, and the auxiliary beam enhancement status is insufficient. These are written into the corresponding hops in the multi-hop link. Hops with stable main beam reception status and sufficient auxiliary beam enhancement status are prioritized in the acceptance order. Hops with stable main beam reception status but insufficient auxiliary beam enhancement status are moved to the back of the order. Hops with declining main beam reception status and insufficient auxiliary beam enhancement status are excluded from the main acceptance order. This gives the main acceptance order of the multi-hop link.

[0038] S3.3: Based on the main connection order of multi-hop links, write the forward node and backward node in each hop as the connection relationship of the next hop; Furthermore, based on the main acceptance order of the multi-hop link, the adjacency record is obtained hop by hop according to the communication direction from the forest area information sending node to the edge aggregation node, and the forward node and backward node are obtained from the adjacency record; In each hop adjacency record, the forward node is written as the node where the service bearer frame is located, the backward node is written as the next node that the service bearer frame needs to reach, and the connection direction from the forward node to the backward node is written into the same hop segment. Perform a consistency check on the adjacency records of two adjacent hops, and use the backward node in the previous hop adjacency record as the forward node for the next hop to continue forwarding the service bearer frame; According to the main acceptance order of the multi-hop link, the forward node, backward node and acceptance direction in each hop are written as the acceptance relationship of the next hop.

[0039] S3.4: Based on the replaceable adjacent records adjacent to the next hop succession relationship in the terrain enhancement beam adjacency table, write the replacement hop segments that can be continued to the edge convergence node when the link decays as backup succession relationships; Furthermore, for the next hop succession relationship of each hop, the adjacent records with the same forward node and different backward node are searched in the terrain enhancement beam adjacency table, and the found adjacent records are used as replaceable adjacent records. The replacement adjacency records are checked for continuity. Along the communication direction from the forest area information sending node to the edge convergence node, it is confirmed that the backward nodes in the replacement adjacency records can continue to the edge convergence node through the subsequent adjacency records in the terrain enhancement beam adjacency list. After the connection verification is passed, the forward node to backward node connection direction corresponding to the replaceable adjacent record is written as the replacement jump segment, and the forward node, backward node, main beam and auxiliary beam in the replacement jump segment are written into the backup connection relationship.

[0040] S3.5: Convert the next hop connection relationship and backup connection relationship into the corresponding beam direction combination, and write the beam pattern connection mark of the corresponding hop segment; Furthermore, for each hop's next hop succession relationship, the main beam and auxiliary beam in the corresponding adjacency record are obtained from the terrain enhancement beam adjacency table, and the direct transmission direction and direct reception direction corresponding to the main beam and the reflection transmission direction and reflection reception direction corresponding to the auxiliary beam are written as the beam direction combination corresponding to the next hop succession relationship according to the succession direction from the forward node to the backward node. For the backup succession relationship of the same hop segment, the main beam and auxiliary beam in the corresponding adjacency record of the replacement hop segment are obtained from the terrain enhancement beam adjacency table, and written into the beam direction combination corresponding to the backup succession relationship according to the succession direction of the replacement hop segment. Write the beam direction combination corresponding to the next hop connection into the main connection position of the beam pattern connection mark, and write the beam direction combination corresponding to the backup connection into the backup connection position of the beam pattern connection mark.

[0041] S3.6: According to the communication direction from the forest area information sending node to the edge aggregation node, the next hop connection relationship, backup connection relationship and beam pattern connection mark of each hop are sequentially connected to generate the topology beam coding bearer chain. Furthermore, according to the communication direction from the forest area information sending node to the edge aggregation node, the next hop connection relationship of each hop is obtained from the main connection order of the multi-hop link, and the next hop connection relationship of the forward node being the forest area information sending node is placed first in the connection order. Based on the next hop succession relationship of each hop in the succession sequence, obtain the backup succession relationship and beam pattern succession mark of the corresponding hop segment, and write the next hop succession relationship, backup succession relationship and beam pattern succession mark into the same hop segment; Between two adjacent hops, the backward node of the previous hop is checked for consistency with the forward node of the next hop. If the nodes are consistent, the next hop is connected after the previous hop, until the backward node of the last hop is the edge convergence node, thus generating the topological beam-coded bearer chain.

[0042] S4: Based on the topological beam-coded bearer chain, the service bearer frame is sent, so that the relay node obtains the next hop forwarding direction according to the received beam pattern acceptance mark, and forwards the service bearer frame hop by hop according to the main beam and auxiliary beam of the corresponding hop segment, generating the core network connection record; S4.1: Based on the topological beam coding bearer chain, the forest area information sending node encapsulates the content to be transmitted into a service bearer frame, and loads the main beam and auxiliary beam according to the beam pattern receiving mark corresponding to the first hop; Furthermore, based on the topological beam coding bearer chain, the forest area information transmission node obtains the first hop segment of the bearer sequence, and obtains the next hop succession relationship, backup succession relationship and beam pattern succession mark from the first hop segment; The forest area information sending node encapsulates the content to be transmitted and the beam pattern acceptance marks of each hop in the topological beam coding bearer chain into a service bearer frame, and obtains the beam direction combination corresponding to the next hop acceptance relationship according to the beam pattern acceptance mark corresponding to the first hop. The forest area information transmission node obtains the direct transmission direction corresponding to the main beam and the reflection transmission direction corresponding to the auxiliary beam from the beam direction combination. It configures the transmission phase of the phased array antenna according to the direct transmission direction to load the main beam, and configures the transmission phase of the phased array antenna according to the reflection transmission direction to load the auxiliary beam.

[0043] S4.2: According to the first-hop next-hop succession relationship in the topological beam coding bearer chain, the forest area information sending node sends the service bearer frame along the main beam, and performs same-hop auxiliary succession and transmission along the auxiliary beam according to the arrival time calibration record and phase calibration record; Furthermore, based on the first-hop-next-hop succession relationship in the topological beam coding bearer chain, the forest area information sending node obtains the forward and backward nodes in the first hop, and determines the backward node in the first hop as the first-hop receiving node of the service bearer frame.

[0044] The forest area information sending node obtains the direct transmission direction corresponding to the main beam from the beam pattern receiving mark corresponding to the first hop, and configures the transmission phase of the phased array antenna according to the direct transmission direction, so that the service bearer frame is sent from the forest area information sending node to the first hop receiving node along the main beam.

[0045] The forest area information transmission node obtains the reflection transmission direction corresponding to the auxiliary beam from the beam pattern receiving mark corresponding to the first hop, and configures the transmission phase of the phased array antenna according to the reflection transmission direction, so that the same service bearer frame is transmitted along the auxiliary beam toward the terrain reflection area.

[0046] Based on the arrival time calibration record corresponding to the first hop, the forest area information transmission node adjusts the transmission time of the auxiliary beam transmission service bearer frame and adjusts the transmission phase of the auxiliary beam transmission service bearer frame based on the phase calibration record corresponding to the first hop, so that the auxiliary beam transmission process and the main beam transmission process complete the same hop auxiliary reception transmission within the same hop segment.

[0047] After receiving the service bearer frame, the first-hop receiving node demodulates and verifies the service bearer frame, and retains the first-hop next-hop connection relationship and the beam pattern connection mark corresponding to the first hop along with the service bearer frame, thus completing the transmission of the service bearer frame from the forest area information sending node to the first-hop receiving node.

[0048] S4.3: After receiving the service bearer frame, the relay node obtains the next hop forwarding direction according to the received beam pattern acceptance mark, and locates the corresponding next hop acceptance relationship in the topology beam-coded bearer chain; Furthermore, after the relay node receives the service bearer frame and completes the verification, it obtains the beam pattern acceptance mark of each hop in the topology beam-coded bearer chain from the service bearer frame, and compares the node identifier of the relay node with the forward node of each hop in the topology beam-coded bearer chain to determine the hop segment where the relay node is located. The relay node obtains the beam pattern acceptance mark of its current hop segment, and obtains the beam direction combination corresponding to the next hop acceptance relationship from the main acceptance position in the beam pattern acceptance mark; The relay node obtains the direct transmission direction corresponding to the main beam and the reflected transmission direction corresponding to the auxiliary beam based on the beam direction combination, and uses the direct transmission direction and the reflected transmission direction together as the next hop forwarding direction; The relay node checks the consistency of the beam pattern acceptance mark with the beam pattern acceptance mark recorded in the hop segment, and obtains the next hop acceptance relationship corresponding to the hop segment after the consistency check is passed.

[0049] S4.4: According to the next hop connection relationship, the relay node loads the main beam and auxiliary beam of the corresponding hop segment, and forwards the service bearer frame to the next relay node according to the arrival time calibration record and phase calibration record of the corresponding hop segment. Furthermore, based on the next-hop connection relationship, the relay node locates the hop segment corresponding to the next-hop connection relationship in the topological beamcoding bearer chain, and obtains the main beam, auxiliary beam, beam pattern connection mark, arrival time calibration record, and phase calibration record from the corresponding hop segment.

[0050] The relay node obtains the direct transmission direction corresponding to the main beam and the reflection transmission direction corresponding to the auxiliary beam based on the beam pattern of the corresponding hop segment. It configures the transmission phase of the phased array antenna according to the direct transmission direction to load the main beam, and configures the transmission phase of the phased array antenna according to the reflection transmission direction to load the auxiliary beam.

[0051] The relay node sends the service bearer frame to the next hop in the successor relationship along the main beam, and adjusts the transmission time of the service bearer frame sent by the auxiliary beam according to the arrival time calibration record, and adjusts the transmission phase of the service bearer frame sent by the auxiliary beam according to the phase calibration record, so that the same service bearer frame is sent along the auxiliary beam toward the terrain reflection area.

[0052] After receiving the service bearer frame, the next relay node demodulates and verifies the service bearer frame, and writes the next hop acceptance relationship of the corresponding hop segment, the beam pattern acceptance mark, the main beam reception status and the auxiliary beam enhancement status into each hop transmission record in the service bearer frame, thus completing the forwarding of the service bearer frame from the relay node to the next relay node.

[0053] S4.5: Repeat the acquisition of beam pattern acceptance marks and forwarding of service bearer frames according to the acceptance order of the topological beam-coded bearer chain until the service bearer frame reaches the edge aggregation node; Furthermore, according to the acceptance order of the topology beam-coded bearer chain, the relay node receiving the service bearer frame obtains the next hop forwarding direction based on the beam pattern acceptance mark of the hop segment it is in, obtains the next hop acceptance relationship corresponding to the next hop forwarding direction in the topology beam-coded bearer chain, loads the main beam and auxiliary beam of the corresponding hop segment according to the next hop acceptance relationship, and then forwards the service bearer frame to the next relay node in the next hop acceptance relationship; After the next relay node completes the demodulation and verification of the service bearer frame, it continues to perform the acquisition of the next hop forwarding direction, the acquisition of the next hop connection relationship, the loading of the main beam and the auxiliary beam, and the forwarding of the service bearer frame until the node identifier receiving the service bearer frame is consistent with the edge aggregation node identifier.

[0054] S4.6: After receiving the service bearer frame, the edge aggregation node connects the service bearer frame to the core network and records the next hop connection relationship, beam pattern connection mark, main beam reception status, auxiliary beam enhancement status and core network access status, and generates a core network connection record. Furthermore, after receiving the service bearer frame, the edge aggregation node demodulates and verifies the service bearer frame, and after the verification is passed, it connects the service bearer frame to the core network, and at the same time writes the core network access completed as the core network access status. The edge aggregation node obtains the next hop connection relationship, beam pattern connection mark, main beam reception status and auxiliary beam enhancement status of the service bearer frame hop by hop from the service bearer frame according to the connection order of the topological beam-coded bearer chain. The edge aggregation node writes the next-hop connection relationship, beam pattern connection mark, main beam reception status, auxiliary beam enhancement status and core network access status of the service bearer frame into the same connection record to generate a core network connection record.

[0055] To verify the impact of topology beamcoding bearer chains on multi-hop transmission continuity, after completing hop-by-hop forwarding of service bearer frames and generating core network connection records, the hop-by-hop forwarding success rate under different multi-hop link hop numbers was recorded, and the results were obtained. Figure 3 . Figure 3 The solid dotted curve represents the beam pattern reception and forwarding method of this invention, while the dashed square curve represents the conventional multi-hop forwarding method.

[0056] S5: Based on the core network connection record and topology beamcoding bearer chain, perform link attenuation correction on the main beam reception status and auxiliary beam enhancement status of each hop, and write the attenuated hop segment back to the terrain enhancement beam adjacency table to generate a reconstructed topology beamcoding bearer chain. S5.1: According to the succession order of the topology beam-coded bearer chain, each hop transmission record in the core network connection record is matched hop-by-hop with the corresponding hop segment in the topology beam-coded bearer chain; Furthermore, based on the succession order of the topological beamcoding bearer chain, the next hop succession relationship, beam pattern succession mark, main beam and auxiliary beam in each hop segment are obtained in sequence, and the obtained content is used as the matching basis for the corresponding hop segment in the topological beamcoding bearer chain. From the core network connection record, the next hop connection relationship, beam pattern connection mark, main beam reception status and auxiliary beam enhancement status are obtained sequentially when the service bearer frame passes through each hop, and the above contents within the same hop are written into each hop transmission record. When the next-hop succession relationship in each hop transmission record is consistent with the next-hop succession relationship of the corresponding hop segment in the topological beamcoding bearer chain, and the beam pattern succession mark in each hop transmission record is consistent with the beam pattern succession mark of the corresponding hop segment in the topological beamcoding bearer chain, each hop transmission record is matched to the corresponding hop segment in the topological beamcoding bearer chain.

[0057] S5.2: Based on the transmission records after hop-by-hop matching, perform link attenuation correction on the main beam reception state and auxiliary beam enhancement state of each hop, and mark the hop segments where the main beam reception state declines and the auxiliary beam enhancement state is insufficient. Furthermore, based on the transmission records after hop-by-hop matching, the main beam reception status and auxiliary beam enhancement status of the corresponding hop segment are obtained hop-by-hop, and the transmission records of the same hop segment are arranged in chronological order.

[0058] In the same jump segment, the first The primary beam reception strength corresponding to the next transmission record is denoted as . In the same jump segment, the first The auxiliary beam reception strength corresponding to the next transmission record is denoted as . And calculate the link attenuation compensation value, the expression is: ; in, This is the link attenuation compensation value. These are the sequence numbers of the transmission records arranged in chronological order. The number of records transmitted consecutively. This indicates the change in the received strength of the main beam between two consecutive transmission records. This indicates the change in the received strength of the auxiliary beam between two consecutive transmission records; If the service bearer frame corresponding to the main beam in the same hop segment fails to demodulate or fails verification during multiple consecutive receptions, or if the main beam reception strength continuously decreases during multiple consecutive receptions, then the corresponding hop segment will be written as the hop segment where the main beam reception status is declining.

[0059] If the service bearer frame corresponding to the auxiliary beam in the same hop segment fails to complete demodulation or pass verification multiple times after being received according to the arrival time calibration record and phase calibration record, or if the auxiliary beam reception strength does not remain unchanged during multiple receptions, then the corresponding hop segment will be written as a hop segment with insufficient auxiliary beam enhancement.

[0060] When the corresponding hop is simultaneously written as a hop with declining main beam reception and a hop with insufficient auxiliary beam enhancement, and the link attenuation compensation value... When the value is positive, the corresponding hop segment is marked out from the topological beam-coded bearer chain.

[0061] S5.3: Write the forward node, backward node, main beam, auxiliary beam, and beam pattern handover mark corresponding to the hop where the main beam reception state is down and the auxiliary beam enhancement state is insufficient as an attenuation hop. Furthermore, based on the hops marked in the link attenuation correction where the main beam reception status is reduced and the auxiliary beam enhancement status is insufficient, the hop content at the same acceptance position is obtained in the topology beam coding bearer chain, and the forward node, backward node, main beam, auxiliary beam and beam pattern acceptance mark are obtained from the hop content. Write the forward node, backward node, main beam, auxiliary beam, beam pattern handover mark, main beam reception status decline and auxiliary beam enhancement status insufficiency into the same hop segment content, and use the written hop segment content as the attenuation hop segment.

[0062] S5.4: Write the attenuation hop back to the corresponding adjacency record in the terrain enhancement beam adjacency table, and update the main beam reception status and auxiliary beam enhancement status in the corresponding adjacency record to generate an updated terrain enhancement beam adjacency table. Furthermore, based on the forward and backward nodes in the attenuation hop, the adjacent records where the forward and backward nodes are consistent are searched in the terrain enhancement beam adjacency table, and the found adjacent records are used as the adjacent records corresponding to the attenuation hop. When the main beam in the adjacent record matches the main beam in the attenuation hop, and the auxiliary beam in the adjacent record matches the auxiliary beam in the attenuation hop, the attenuation hop is written back to the adjacent record; the main beam reception state in the attenuation hop is written down to the main beam reception state in the adjacent record, and the auxiliary beam enhancement state in the attenuation hop is written down to the auxiliary beam enhancement state in the adjacent record. After writing back all attenuation hops, retain the adjacent records in the terrain enhancement beam adjacency table that have not experienced attenuation, and update the main beam reception status and auxiliary beam enhancement status in the adjacent records of the attenuation hops that have been written back, thereby generating an updated terrain enhancement beam adjacency table.

[0063] S5.5: Based on the updated terrain-enhanced beam adjacency table, reorder the next-hop succession relationship and backup succession relationship of the location of the attenuation hop, and update the beam pattern succession mark of the corresponding hop. Furthermore, based on the updated terrain-enhanced beam adjacency table, the forward and backward nodes in the attenuation hop are obtained, and the adjacent records with the same forward node are located in the updated terrain-enhanced beam adjacency table. The located adjacent records are used as the reorderable adjacent records at the location of the attenuation hop. The adjacent records whose main beam reception status is not written as descent and whose auxiliary beam enhancement status is not written as insufficient are placed in the first position, and the adjacent records corresponding to the attenuation hop are placed in the last position. Based on the reordered previous adjacent records, write the forward and backward nodes in the previous adjacent records into a new next-hop connection relationship, and check whether the new next-hop connection relationship can continue to the edge aggregation node along the communication direction from the forest area information sending node to the edge aggregation node. In the updated terrain-enhancing beam adjacency table, select the adjacency record that is adjacent to the new next-hop connection and can continue to the edge convergence node, and write the forward and backward nodes in the selected adjacency record as the new backup connection. Based on the new next-hop connection and the new backup connection, obtain the main beam and auxiliary beam in the corresponding adjacency record, and write the direct transmission direction corresponding to the main beam and the reflection transmission direction corresponding to the auxiliary beam into the beam pattern connection mark of the corresponding hop segment, thus completing the update of the beam pattern connection mark of the corresponding hop segment.

[0064] S5.6: According to the updated beam pattern, connect each hop along the communication direction from the forest area information sending node to the edge aggregation node to generate the reconstructed topology beam coding bearer chain. Furthermore, according to the updated beam pattern acceptance mark, the hop segment where the forest information sending node is located is obtained, and the next hop acceptance relationship, backup acceptance relationship and updated beam pattern acceptance mark in the hop segment where the forest information sending node is located are written into the first and second contents of the reconstructed topology beam coding bearer chain; along the communication direction from the forest information sending node to the edge convergence node, the next hop segment is obtained according to the backward node of the previous hop segment, and the next hop acceptance relationship, backup acceptance relationship and updated beam pattern acceptance mark in the next hop segment are continuously written into the reconstructed topology beam coding bearer chain, so that the backward node of the previous hop segment is consistent with the forward node of the next hop segment; During the connection process, the updated beam pattern acceptance mark in each hop segment is checked to ensure that the updated beam pattern acceptance mark corresponds to the next hop acceptance relationship and backup acceptance relationship in the same hop segment, and that each hop segment can obtain the next hop forwarding direction according to the updated beam pattern acceptance mark; the hop segment acquisition and hop segment connection are repeated until the hop segment written into the reconstructed topology beam-coded bearer chain is used as the edge convergence node, and the reconstructed topology beam-coded bearer chain is generated.

[0065] It should be noted that after the reconstructed topology beamcoding bearer chain is generated, it is used as the bearer basis for subsequent service bearer frame transmission. When the forest area information sending node retransmits the service bearer frame, the forest area information sending node loads the main beam and auxiliary beam of the corresponding hop segment according to the first-hop beam pattern acceptance mark in the reconstructed topology beamcoding bearer chain. The relay node obtains the next-hop forwarding direction according to the beam pattern acceptance mark of the corresponding hop segment in the reconstructed topology beamcoding bearer chain, and continues to forward the service bearer frame hop by hop according to the reconstructed next-hop acceptance relationship and backup acceptance relationship, so that the reconstructed topology beamcoding bearer chain formed after link attenuation correction can be reused in the subsequent information transmission process.

[0066] To verify the recovery effect of the reconstructed topology beamcoded bearer chain on link attenuation, after generating the reconstructed topology beamcoded bearer chain, the service bearer frame loss rate before and after reconstruction was recorded under different numbers of attenuation hops. Figure 4 . Figure 4 The black bars represent the service frame loss rate before reconstruction, and the diagonally filled bars represent the service frame loss rate after reconstruction.

[0067] This embodiment also provides a computer device applicable to the forest area phased array information transmission method based on ad hoc networks, including: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to realize the forest area phased array information transmission method based on ad hoc networks proposed in the above embodiment.

[0068] The computer device can be a terminal, comprising a processor, memory, communication interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, carrier networks, NFC (Near Field Communication), or other technologies. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the computer device's casing, or an external keyboard, touchpad, or mouse.

[0069] This embodiment also provides a storage medium storing a computer program. When executed by a processor, the program implements the forest area phased array information transmission method based on ad hoc networks as proposed in the above embodiments. The storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Red-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0070] In summary, this invention achieves the foundation for collaborative reception of main and auxiliary beams by: obtaining a terrain-enhanced beam adjacency table; and then writing the next-hop reception relationship and backup reception relationship into the beam pattern reception mark through the topology beam coding bearer chain, enabling relay nodes to forward service bearer frames hop by hop according to the beam pattern reception mark, which is used for information access and core network connection in forest obstruction environments, thereby improving multi-hop transmission continuity and link reconfiguration adaptability.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for phased array information transmission in forest areas based on self-organizing networks, characterized in that, include: Collect forest area communication task data and node deployment data, and combine the forest area terrain shading and reflection propagation relationship to perform wide beam detection on the direct access area and terrain reflection area between adjacent nodes to generate a forest area topology beam base map; Based on the forest topology beamline, phased array beam training is performed on the direct and reflection paths between adjacent nodes to form the main beam and auxiliary beam. Arrival time and phase are then calibrated to obtain the terrain-enhanced beam adjacency table. Based on the terrain-enhanced beam adjacency list, the multi-hop links between the forest area information sending node and the edge aggregation node are sorted and the next hop connection and backup connection of each hop are written into the corresponding beam pattern connection mark to generate the topology beam-coded bearer chain. Based on the topological beam-coded bearer chain, the service bearer frame is sent, so that the relay node obtains the next hop forwarding direction according to the received beam pattern acceptance mark, and forwards the service bearer frame hop by hop according to the main beam and auxiliary beam of the corresponding hop segment, generating the core network connection record. Based on the core network connection record and topology beamcoding bearer chain, the link attenuation is adjusted for the main beam reception status and auxiliary beam enhancement status of each hop, and the attenuated hop segments are written back to the terrain enhancement beam adjacency table to generate a reconstructed topology beamcoding bearer chain.

2. The forest area phased array information transmission method based on self-organizing network as described in claim 1, characterized in that, The method of combining the relationship between forest terrain shading and reflection propagation to perform wide-beam detection on the directly accessible areas and terrain reflection areas between adjacent nodes is as follows: Extract the communication direction from forest area information sending nodes to edge aggregation nodes and the relationship between adjacent nodes from forest area communication task data and node deployment data; Based on the relationship between adjacent nodes, the terrain obstruction positions and reflection propagation positions between adjacent nodes are marked along the communication direction from the forest area information sending node to the edge convergence node, thus forming the propagation relationship between adjacent nodes; According to the propagation relationship between adjacent nodes, a wide-beam detection signal is sent from the forward node to the backward node among the adjacent nodes, and the receiving direction and receiving strength corresponding to the receiving node are recorded. Based on the receiving direction and receiving strength, the propagation range that can directly and stably receive wide-beam detection signals is defined as the directly accessible area, and the propagation range that can stably receive wide-beam detection signals after terrain reflection is defined as the terrain reflection area.

3. The forest area phased array information transmission method based on self-organizing network as described in claim 2, characterized in that, The generated forest area topology beamform is as follows: Write each pair of adjacent nodes as a node edge, and write the corresponding forward node, backward node, directly accessible area, terrain reflection area and communication direction into the node edge record. By sequentially connecting the node edge records according to the communication direction from the forest area information sending node to the edge aggregation node, the basic topological beam map of the forest area is obtained.

4. The forest area phased array information transmission method based on self-organizing network as described in claim 1, characterized in that, The formation of the main beam and auxiliary beam is specifically as follows: Based on the forest area topology beamline, the direct and reflection paths between adjacent nodes are delineated along the communication direction from the forest area information sending node to the edge aggregation node; Phased array beam training is performed on the direct path between adjacent nodes to calibrate the direct transmission and reception directions between forward and backward nodes, forming the main beam; Phased array beam training is performed on the reflection paths between adjacent nodes to calibrate the reflection transmission direction of the forward node toward the terrain reflection area and the reflection reception direction of the backward node, thus forming an auxiliary beam.

5. The forest area phased array information transmission method based on self-organizing network as described in claim 4, characterized in that, The obtained terrain-enhancing beam adjacency table is as follows: Based on the arrival times of the training signals corresponding to the main beam and the auxiliary beam, the transmission delay of the auxiliary beam relative to the main beam is adjusted by arrival time compensation. At the same time, based on the reception phase of the training signals corresponding to the main beam and the auxiliary beam, the phase deviation of the auxiliary beam relative to the main beam is adjusted by phase compensation. The direct path, reflection path, main beam, auxiliary beam, arrival time calibration record, and phase calibration record between adjacent nodes are written into the same adjacency record to obtain the terrain enhancement beam adjacency table.

6. The forest area phased array information transmission method based on self-organizing network as described in claim 1, characterized in that, The generation of the core network connection record is as follows: Based on the topological beam coding bearer chain, the forest area information sending node encapsulates the content to be transmitted into a service bearer frame, and loads the main beam and auxiliary beam according to the beam pattern receiving mark corresponding to the first hop; According to the first-hop-next-hop succession relationship in the topological beam coding bearer chain, the forest area information sending node sends the service bearer frame along the main beam, and performs same-hop auxiliary succession and transmission along the auxiliary beam according to the arrival time calibration record and phase calibration record; After receiving the service bearer frame, the relay node obtains the next hop forwarding direction according to the received beam pattern acceptance mark, and locates the corresponding next hop acceptance relationship in the topology beam-coded bearer chain. According to the next hop connection relationship, the relay node loads the main beam and auxiliary beam of the corresponding hop segment, and forwards the service bearer frame to the next relay node according to the arrival time calibration record and phase calibration record of the corresponding hop segment. Repeat the process of obtaining beam pattern acceptance marks and forwarding service bearer frames in the acceptance order of the topological beam-coded bearer chain until the service bearer frames reach the edge aggregation node. After receiving the service bearer frame, the edge aggregation node connects the service bearer frame to the core network and records the next hop connection relationship, beam pattern connection mark, main beam reception status, auxiliary beam enhancement status and core network access status, and generates a core network connection record.

7. The forest area phased array information transmission method based on self-organizing network as described in claim 1, characterized in that, The link attenuation adjustment is performed on the main beam reception status and auxiliary beam enhancement status of each hop based on the core network connection record and topology beam-coded bearer chain, as follows: According to the succession order of the topology beam-coded bearer chain, each hop transmission record in the core network connection record is matched hop-by-hop with the corresponding hop segment in the topology beam-coded bearer chain. Based on the transmission records after hop-by-hop matching, the link attenuation is adjusted for the main beam reception state and the auxiliary beam enhancement state of each hop, and the hop segments where the main beam reception state declines and the auxiliary beam enhancement state is insufficient are marked. Write the forward node, backward node, main beam, auxiliary beam, and beam pattern handover mark corresponding to the hop where the main beam reception state is degraded and the auxiliary beam enhancement state is insufficient as the attenuation hop. Write the attenuation hop back to the corresponding adjacency record in the terrain enhancement beam adjacency table, and update the main beam reception status and auxiliary beam enhancement status in the corresponding adjacency record to generate an updated terrain enhancement beam adjacency table.

8. The forest area phased array information transmission method based on self-organizing network as described in claim 7, characterized in that, The specific steps for generating the reconstructed topology beamcoded bearer chain are as follows: Based on the updated terrain-enhanced beam adjacency table, the next-hop succession and backup succession relationships of the location of the attenuation hop are reordered, and the beam pattern succession markers of the corresponding hop are updated. According to the updated beam pattern, each hop is connected along the communication direction from the forest area information sending node to the edge aggregation node to generate the reconstructed topology beam-coded bearer chain.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, it implements the steps of the forest area phased array information transmission method based on self-organizing network as described in any one of claims 1 to 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements the steps of the forest area phased array information transmission method based on self-organizing network as described in any one of claims 1 to 8.

Images