Multi-AP cooperation power control method and system of electric power emergency communication system

A communication system and power control technology, applied in the field of wireless communication, can solve problems such as low data transmission capacity and small signal coverage, and achieve the effect of increasing channel capacity, improving data transmission capacity, and large system capacity

Active Publication Date: 2022-05-17
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low data transmission capability and small signal coverage of the power emergency communication system in the prior art, the purpose of the present invention is to provide a multi-AP cooperative power control method and system for the power emergency communication system

Method used

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  • Multi-AP cooperation power control method and system of electric power emergency communication system
  • Multi-AP cooperation power control method and system of electric power emergency communication system
  • Multi-AP cooperation power control method and system of electric power emergency communication system

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Experimental program
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Effect test

Embodiment 1

[0063] The power emergency communication system in the prior art provides local wireless network coverage for the power equipment in the disaster area by arranging multiple wireless access points (Access Point, AP). Among them, Coordinated Spatial Reuse (CSR) technology, through the cooperation among APs, jointly controls their transmit power, reduces the same-channel interference between APs, and significantly improves the data transmission rate. However, Coordinated Spatial Reuse (CSR) There are overlapping basic service sets (Overlapping Basic Service Set, OBSS) in dense scenarios, and users in the OBSS area will still be severely interfered. Coordinated Orthogonal Frequency Division Multiple Access (C-OFDMA) technology, through cooperation between APs, allocates orthogonal spectrum resources for different APs, thereby eliminating interference between APs and significantly expanding network coverage. However, its The spectrum efficiency is low, resulting in a decrease in th...

Embodiment 2

[0131] The second embodiment provides a multi-AP cooperative power control system of a power emergency communication system, such as Figure 9 As shown, the system of this embodiment includes:

[0132] The association unit 41 is used for the access point to send a beacon frame, and the station selects and associates with the corresponding access point according to the RSSI value of the beacon frame;

[0133] The sending unit 42 is configured to determine a master access point and a slave access point among the access points, the slave access point sends an exchange frame to the master access point, and the exchange frame includes The first RSSI value generated by the access point for interference;

[0134] A judging unit 43, configured to calculate the SINR value of the station according to the RSSI value and the first RSSI value, and judge whether the station is in the OBSS area according to the SINR value;

[0135] The processing unit 44 is configured to identify a site in...

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Abstract

The invention discloses a multi-AP cooperation power control method and system of an electric power emergency communication system, relates to the field of wireless communication, solves the problems of low data transmission capability and small signal coverage range of the electric power emergency communication system, and improves the data transmission capability of the electric power emergency communication system by increasing user types in a wireless access process and adjusting part of protocol frame structures. According to the method, the related field is used for indicating the newly added user type, a spectrum resource allocation method and an AP center power control method are designed in combination with the AP cooperation technology and the soft frequency reuse technology, and compared with the prior art, the data transmission capacity is effectively improved, and the signal coverage range is enlarged under the condition that the station bearing capacity is similar.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, it relates to a multi-AP cooperative power control method and system of a power emergency communication system. Background technique [0002] The power communication system mainly includes three data communication methods: optical fiber communication, power wireless private network communication and power wireless public network communication. When a major natural disaster occurs, the power communication system may be severely damaged, which will affect the normal operation of each power equipment, and even lead to the paralysis of the entire power grid. [0003] The power emergency communication system in the prior art provides local wireless network coverage for the power equipment in the disaster area by arranging multiple wireless access points (Access Point, AP). Among them, the Coordinated Spatial Reuse (CSR) technology, through the cooperation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04W52/42H04B7/024H04W48/20H04B17/318H04B17/336
CPCH04W52/241H04W52/42H04B7/024H04W48/20H04B17/318H04B17/336Y02D30/70
Inventor 张颉杨迎春常政威周剑傅宁唐超刘锦隆白晖峰李里刘喆
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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