Benchmark Electronics, Inc.
Hybrid time division multiple access (TDMA) and carrier sense multiple access (CSMA) for interference avoidance method therefor

Abstract:

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 a 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; and transmitting the message in a contention slot if the designated TDMA time slot is busy.