SYSTEM AND METHOD FOR OPTIMAL LISTEN BEFORE TRANSMIT IN WIRELESS COMMUNICATIONS

摘要

One embodiment of the present invention sets forth a technique for transmitting data in a listen before talk (LBT) wireless transmission regime. A digital radio receiver is configured to simultaneously receive and decode digital data transmissions from multiple radio channels. A digital radio transmitter is configured to listen to the multiple radio channels prior to transmitting digital data on a selected one of the multiple channels, based on locally determined channel occupancy. Optimal LBT efficiency is achieved within the set of multiple channels, thereby improving overall transmission efficiency between the transmitter and the receiver.

主权项

1. A method for receiving one or more data packets via a radio signal, the method comprising:
monitoring a first plurality of communication channels associated with the radio signal; identifying a first communication channel in the first plurality of communication channels that includes a first data bearing signal; receiving the first data bearing signal via the first communication channel; determining that the first communication channel is occupied based on energy measured for the first communication channel exceeding a threshold; selecting a second communication channel in the first plurality of communication channels that is not occupied based on energy measured for the second communication channel not exceeding the threshold; and transmitting a first acknowledgement, via the second communication channel, that the first data bearing signal has been received.