US Patent No. 10,972,997

HYBRID TIME DIVISION MULTIPLE ACCESS (TDMA) AND CARRIER SENSE MULTIPLE ACCESS (CSMA) FOR INTERFERENCE AVOIDANCE METHOD THEREFOR


Patent No. 10,972,997
Issue Date April 06, 2021
Title Hybrid Time Division Multiple Access (tdma) And Carrier Sense Multiple Access (csma) For Interference Avoidance Method Therefor
Inventorship Jim Luecke, Scottsdale, AZ (US)
Assignee BENCHMARK ELECTRONICS, INC., Tempe, AZ (US)

Claim of US Patent No. 10,972,997

1. A method for interference avoidance when transmitting a message in a wireless system comprising:dividing a frame into a plurality of time slots, wherein a first plurality of time slots allocated as Time Division Multiple Access (TDMA) time slots and a second plurality of time slots allocated as contention slots;
transmitting the message in a designated TDMA time slot by a corresponding wireless node assigned to the designated TDMA time slot if the designated TDMA time slot is idle;
relabeling a contention slot as the designated TDMA time slot for the corresponding wireless node when the designated TDMA time slot for the corresponding wireless node remains busy;
relabeling the designated TDMA time slot as the contention slot; and
transmitting the message in the contention slot relabeled as the designated TDMA time slot for the corresponding wireless node.