Patent ID: 8279880

Claim:
A communication gateway, comprising: a communication unit that transmits and receives messages to communicate with at least one remote communication node on a first wireless communication network according to a protocol which includes network access control, and receives messages originating from at least one transmitter transmitting messages on a second wireless communication network according to a protocol which does not include network access control, whereby the protocol of the first wireless communication network and the protocol of the second wireless communication network use a same physical layer; and a processing unit associated with said communication unit that differentiates between the received messages originating from the first wireless communication network and the received messages originating from the second wireless communication network by analysing three bits of frame-type identification information of header information contained in the received messages originating from the first wireless communication network and in the received messages originating from the second wireless communication network, wherein, when the three bits of the frame-type identification information are one of 100, 101, 110, and 111, the processing unit determines that a received message originated from the second wireless communication network.