channel busy tone

基本解釋

MAC protocol, termed Dual Busy Tone Multiple Access(DBTMA), is a random access mechanism with high channel utilization for WLAN.
雙忙音多址信道接入（DBTMA）協(xié)議是一種信道利用率較高的無線局域網(wǎng)信道隨機接入控制方案。
The operation of Dual Busy Tone Multiple Access(DBTMA) is based on the RTS/CTS packet and two narrow bandwidth, outofband busy tones. The RTS/CTS dialogue is used to reserve the channel.
雙忙音多址接入（DBTMA）協(xié)議是采用RTS/CTS對話機制來預(yù)約信道，通過引入兩個窄帶帶外忙音信號來避免分組間沖突，解決了隱藏終端和暴露終端問題。