Funkübertragungssystem eines lokalen Netwerkes

摘要

In a method of operating a wireless local area network, a transmitting station senses that the medium is free and then transmits a first portion (43) of a message (40), including destination and source addresses. Message transmission is then interrupted for a response window period (53) during which the destination station should transmit a response message (42) also containing said source and destination addresses. If the transmitting station does not receive a correct response message (42) then it transmits a JAM signal during a JAM window (65) following the response window (53), thereby indicating to all stations that a collision has occurred. All stations not transmitting a JAM signal monitor the JAM window (65) and are thus informed whether or not a collision has been detected.