| 摘要 |
<p>A method and apparatus for data communication using signature sequences and spread spectrum techniques to reduce the effects of certain transmission impairments in a Wireless local area network (WLAN). The invention uses a number of correlators and M-ary Code Keying with a Supergold signature sequence for simultaneously generating a periodic signal for acquiring symbol synchronisation, a difference squarewave signal for acquiring and maintaining chip synchronisation and a sum signal for determining received signal strength and setting threshold levels.</p> |
