Airship deployment method and system based on airship-ground stable coverage

An airship and stable technology, which is applied in the field of airship deployment methods and systems, can solve the problems of not considering communication requirements, unable to ensure the communication stability of users in hotspot areas, and only considering full coverage, etc., so as to achieve a small number of airships and minimize deployment costs. , the effect of the largest number of airships

Active Publication Date: 2022-04-22
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method only considers the full coverage of the target area, and does not consider the possible existence of hotspot areas that may cause large communication requirements, and cannot ensure the stability of user communication in hotspot areas.

Method used

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  • Airship deployment method and system based on airship-ground stable coverage
  • Airship deployment method and system based on airship-ground stable coverage
  • Airship deployment method and system based on airship-ground stable coverage

Examples

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Effect test

Embodiment 1

[0080] The present embodiment provides a technical solution: a method for deploying an airship based on airship-ground stable coverage, including the following steps:

[0081] S1: Determine the deployment height of the airship

[0082] Analyze the relationship between the airship coverage height and the radius, and obtain the airship deployment height under the condition of determining the environmental constant and the acceptable maximum path loss;

[0083] S2: Classify users

[0084] According to the known user set, the location of each user in the user set, the range of user distribution areas and the range of hotspot areas, users are divided into users in hotspot areas and users in non-hotspot areas, and the uncovered user sets, airship sets, and user sets are initialized. airship number;

[0085] S3: Judging the user set that is not covered

[0086] Determine whether the uncovered user set is empty, if yes, end the deployment process, output the airship set and each ai...

Embodiment 2

[0145] Such as Figure 1~5 As shown, in this embodiment, on a ground communication scene composed of users in hotspot areas and users in non-hotspot areas, the height of airships is required to be 20-25 km, the distance between airships is 20-400 km, and the environmental constants for this environment a and b are 9.61 and 0.16 respectively, the additional losses caused by shadow fading in the case of LoS link and NLoS link are 1dB and 20dB respectively, and the carrier frequency is 40GHz.

[0146] Environmental parameters are related to the following three urban environmental statistical parameters, namely:

[0147] α: represents the ratio of construction land area to total land area (dimensionless);

[0148] β: represents the average number of buildings per unit area (buildings / km2);

[0149] γ: represents the scale parameter describing the distribution of building heights according to the Rayleigh probability density function:

[0150] f(H)=(H / γ 2 )exp(-H 2 / 2γ 2 ), w...

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Abstract

The invention discloses an airship deployment method and system based on the stable coverage of the airship, belonging to the technical field of wireless mobile communication, comprising the following steps: S1: determining the deployment height of the airship; S2: classifying users; S3: classifying users who are not covered Set to judge; S4: Find edge users; S5: Adjust the position of the airship so that more border users are covered; Adjust the position of the airship so that more internal users are covered; S7: Update the airship position set and the non-covered user set. The present invention aims at the ship-to-ground communication scene of the space communication network, and minimizes the number of airships and optimizes the position of the airship on the basis of ensuring that users in all target areas can be covered, meeting the call drop rate of users in hotspot areas and ensuring the link quality of users in hotspot areas Perform airship deployment.

Description

technical field [0001] The present invention relates to the technical field of wireless mobile communication, in particular to an airship deployment method and system based on airship stable coverage. Background technique [0002] The air base station is a powerful supplement to the ground mobile communication network, and can be applied to scenarios that cannot be covered by the ground mobile communication network, such as non-land areas and emergency communication scenarios. [0003] As an air base station, the airship can overcome the respective shortcomings of the ground mobile communication system and the satellite communication system. It can carry a certain scale of payload, stay in the air at a certain height from the ground for a long time and quasi-stationary, and provide various fixed and mobile services to ground users. business. In order to make the airship communication system better provide communication services, the stability of the communication link betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18H04B7/185
CPCH04W16/18H04B7/18502
Inventor 张正宇周家喜肖海红王昕张靖李家干刘晨晨贺超张霄陈田
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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