| 摘要 |
<p>In a communication system comprising a base station (10) and a plurality of asynchronously operating remote units (20, 22, 24, 26, 28), a method of communication between the base station and each of the remote units includes each remote unit randomly transmitting (208) a first bit pattern to the base unit. Upon detecting the reception of an error-free bit pattern, the base unit transmits (234) an ACK during a first window of time. The remote unit which detects the ACK during a corresponding first window of time becomes the selected unit and thereafter communicates (218) with the base station. All other remote units continue monitoring (214) for the transmission of a command belonging to a first set of commands, afterwhich the selected unit goes into a quiet mode and the unselected units resume their random transmissions of the first bit pattern to the base unit.</p> |
