CN-122028129-A - Switching chain decision method and device and electronic equipment

CN122028129ACN 122028129 ACN122028129 ACN 122028129ACN-122028129-A

Abstract

The invention discloses a switching chain decision method, a switching chain decision device and electronic equipment, which relate to the technical field of wireless communication and comprise the steps of constructing a low-altitude environment model according to building information and terrain information; the method comprises the steps of collecting state information of an aircraft, predicting track data of the aircraft in a target time period based on the state information, determining coverage of a base station based on a low-altitude environment model, determining a candidate base station from the base station based on the coverage and the track data, determining a target switching chain corresponding to a switching path of the candidate base station, and controlling switching of the base station according to a target decision of the target switching chain, wherein the target switching chain is optimized in a multi-target optimization mode, the candidate base station is determined through the low-altitude environment model and the aircraft track prediction, the target switching chain is obtained through multi-target optimization, switching stability and communication quality of the low-altitude aircraft base station are guaranteed, and efficient utilization of network resources is achieved.

Inventors

ZHOU JUN
LV PAN
LUO FENG
ZHOU ZHENGHAO
LI YAN
YUE JUN

Assignees

中国移动通信集团设计院有限公司
中国移动通信集团有限公司

Dates

Publication Date: 20260512
Application Date: 20251219

Claims (10)

1. A handover chain decision method, the method comprising: constructing a low-altitude environment model according to the building information and the terrain information; Acquiring state information of an aircraft, and predicting track data of the aircraft in a target time period based on the state information; Determining a coverage area of a base station based on the low-altitude environment model, and determining a candidate base station from the base stations based on the coverage area and the track data; determining a target switching chain corresponding to the switching path of the candidate base station, and controlling the switching of the base station according to the target decision of the target switching chain, wherein the target switching chain is optimized by a multi-target optimization mode.
2. The method of claim 1, wherein constructing the low-altitude environment model from the building information and the terrain information comprises: the building information is obtained, wherein the building information at least comprises building height, building shape and building material; the terrain information is acquired, wherein the terrain information at least comprises ground height, ground gradient and vegetation coverage; And fusing the building information and the topographic information to obtain environment fusion information, and generating the low-altitude environment model according to the environment fusion information.
3. The method of claim 1, wherein the acquiring status information of the aircraft and predicting trajectory data of the aircraft for a target time period based on the status information comprises: Collecting the state information of the aircraft, wherein the state information at least comprises position information, speed information and heading information; And acquiring historical track data of the aircraft, and predicting the flight track of the aircraft based on the historical track data and the state information to obtain the track data.
4. The method of claim 1, wherein the determining the coverage area of a base station based on the low altitude environment model and determining candidate base stations from the base stations based on the coverage area and the trajectory data comprises: acquiring position data of a base station, and determining base station parameters based on the position data; determining propagation loss of signals in different paths based on the low-altitude environment model, wherein the propagation loss comprises free space loss and barrier loss; determining the coverage area of the base station according to the base station parameters and the propagation loss; and determining the candidate base station according to the coverage range and the track data.
5. The method of claim 1, wherein the determining the target handover chain corresponding to the handover path of the candidate base station comprises: Determining a current base station at which the aircraft is located based on the location data of the base station; planning the switching path from the current base station to the candidate base station, and constructing the switching chain according to the switching path; And optimizing the switching chain in the multi-objective optimization mode to obtain the objective switching chain.
6. The method according to claim 5, wherein said optimizing said switching chain by said multi-objective optimization method to obtain said objective switching chain comprises: defining a state space, wherein the state space comprises position information, speed information and heading information of the aircraft; Defining an action space, wherein the action space comprises selecting the base station in the handover chain; calculating a reward value based on the state space, the action space and the multi-objective optimization mode; Updating a preset learning algorithm based on the reward value to obtain a target switching chain; The multi-objective optimization method optimization comprises at least one of signal strength, switching delay, network load balance, energy consumption cost and signal interference level, and before the switching chain is optimized by the multi-objective optimization method, the method comprises the following steps: determining the signal strength based on the coverage of the base station and location information of the aircraft; Determining the switching delay based on the switching path of the base station; Determining the network load balancing degree based on the load information of the base station; Determining the energy consumption cost based on the energy consumption information of the base station; And identifying an interference source according to the low-altitude environment model, and determining the signal interference level based on the interference source.
7. The method according to claim 1, wherein said controlling the handover of the base station according to the target decision of the target handover chain comprises: Generating the target decision based on the target switching chain; And generating a switching instruction according to the target decision, and controlling the aircraft to switch to a corresponding target base station at a switching time point according to the switching instruction, wherein the switching instruction comprises the switching time point of the switching chain and the target base station.
8. The method according to claim 1, wherein after said controlling the handover of the base station according to the target decision of the target handover chain, the method further comprises: And optimizing the target switching chain by deploying an edge server to obtain the target decision, and adding weather data to the low-altitude environment model to optimize prediction accuracy.
9. A handover chain decision device, comprising: the building unit is used for building a low-altitude environment model according to the building information and the topographic information; the prediction unit is used for collecting state information of the aircraft and predicting track data of the aircraft in a target time period based on the state information; A first determining unit, configured to determine a coverage area of a base station based on the low-altitude environment model, and determine a candidate base station from the base stations based on the coverage area and the trajectory data; a second determining unit, configured to determine a target handover chain corresponding to a handover path of the candidate base station; And the control unit is used for controlling the switching of the base station according to the target decision of the target switching chain, wherein the target switching chain is optimized by a multi-target optimization mode.
10. An electronic device, comprising: at least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.

Description

Switching chain decision method and device and electronic equipment Technical Field The disclosure relates to the technical field of wireless communication, and in particular relates to a switching chain decision method, a switching chain decision device and electronic equipment. Background With the rapid development of the fifth generation mobile communication technology, low-altitude economy is gradually raised, application scenes such as unmanned plane logistics and air taxis are provided with higher demands on a communication network, and the fifth generation enhanced mobile communication technology is used as an evolution version of the fifth generation mobile communication technology, has higher speed, lower time delay and higher connection density, and is suitable for supporting the communication demands of low-altitude application. In the related art, a switching chain scheme is formulated through a rule-based switching algorithm or a learning-based switching optimization technology, etc., however, the related art is usually designed aiming at a specific scene, the problems of insufficient coverage, signal interference, etc. of a base station in a low-altitude environment are not fully considered, and the capability of dynamically allocating network resources is lacking, so that the network resources are unevenly allocated, and the communication quality of an aircraft in a complex low-altitude environment is difficult to ensure. Disclosure of Invention The present disclosure provides a switching chain decision method, apparatus and electronic device, so as to solve the problems in the related art, determine candidate base stations through low-altitude environment models and aircraft trajectory prediction, obtain a target switching chain through multi-target optimization, ensure stability and communication quality of low-altitude aircraft base station switching, and realize efficient utilization of network resources. According to an embodiment of the first aspect of the present disclosure, there is provided a handover chain decision method, including: constructing a low-altitude environment model according to the building information and the terrain information; Acquiring state information of an aircraft, and predicting track data of the aircraft in a target time period based on the state information; Determining a coverage area of a base station based on the low-altitude environment model, and determining a candidate base station from the base stations based on the coverage area and the track data; determining a target switching chain corresponding to the switching path of the candidate base station, and controlling the switching of the base station according to the target decision of the target switching chain, wherein the target switching chain is optimized by a multi-target optimization mode. In some embodiments of the disclosure, the building the low-altitude environment model according to the building information and the terrain information includes: the building information is obtained, wherein the building information at least comprises building height, building shape and building material; the terrain information is acquired, wherein the terrain information at least comprises ground height, ground gradient and vegetation coverage; And fusing the building information and the topographic information to obtain environment fusion information, and generating the low-altitude environment model according to the environment fusion information. In some embodiments of the present disclosure, the collecting state information of the aircraft and predicting trajectory data of the aircraft within a target time period based on the state information includes: Collecting the state information of the aircraft, wherein the state information at least comprises position information, speed information and heading information; And acquiring historical track data of the aircraft, and predicting the flight track of the aircraft based on the historical track data and the state information to obtain the track data. In some embodiments of the disclosure, the determining the coverage of the base station based on the low-altitude environment model, and determining the candidate base station from the base stations based on the coverage and the trajectory data includes: acquiring position data of a base station, and determining base station parameters based on the position data; determining propagation loss of signals in different paths based on the low-altitude environment model, wherein the propagation loss comprises free space loss and barrier loss; determining the coverage area of the base station according to the base station parameters and the propagation loss; and determining the candidate base station according to the coverage range and the track data. In some embodiments of the present disclosure, the determining a target handover chain corresponding to a handover path of the candidate base station includes: Deter