Qualcomm IP Dept.
Listen before transmit (LBT) communication protocol for vehicle-to-vehicle communications
A method for communication includes accessing all sub-channels in a communication frame, generating a counter that counts down beginning with a received first listen before talk (LBT) communication symbol, determining whether the counter reaches zero before receiving a second LBT communication symbol, determining whether a desired number N of contiguous sub-channels are available, and if the desired number N of contiguous sub-channels are available, transmitting an LBT symbol.
QUALCOMM Incorporated
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Georgios Junyi Shailesh Sudhir Kumar
Tsirtsis Li Patil Baghel