一种新型的井下无线通信组网方式

A New Networking Method of Underground Wireless Communication

介绍了一种适合煤矿井下工作特点的无线通信组网方式。组网采用小区制频率复用技术 ,每个小区的基站用 1个载频 ,小区半径为 5 0 0m ,小区基站有 3个话音信道、1个专用信令信道 ,多址采用TDMA方式。为改善呼损率和提高通信系统可靠性以防基站故障时出现盲区 ,设计了直通方式 ,使在 0 .5km距离内移动台之间的话音数据可以不通过基站 。

A new networking method that suits with underground working condition was introduced in the paper. Networking adopted cell system of frequency reusing, base station had 1 carrier frequency, 3 traffic channels and 1 specific signaling channel, radius of a cell is 500 m, adopted TDMA as measure of multi address. In order to improve call loss rate and update the safety of communication system to avoid appearing fade area when base station had fault, a method which allowed two mobile phone to perform point to point communication directly at the range of 0.5 km was introduced. In the process of point to point communication, two mobile phone can receive singling of base station respectively as well.