Patent ID: 9198198
Filing Date: 2015-11-24
Classification: H04B,H04L,H04W

Abstract:
1. A method for performing transmission over a communication channel using carrier sense multiple access collision avoidance (CSMA/CA) by a communication device, the method comprising: determining if the communication channel is busy by performing carrier sensing by the communication device after a backoff time proportional to a randomly generated number (K) within a contention window (CW); transmitting a frame of data when the communication channel is determined to be not busy; and when the communication channel is determined to be busy, periodically determining if the communication channel is busy after subsequent backoff times, wherein the value of CW is adjusted for each subsequent backoff time using a fairness protocol, wherein the fairness protocol comprises: increasing the value of CW until the value of CW reaches a maximum CW value (maxCW); then holding the value of CW until a fairness number of backoff (NBF) repetitions reaches a fairness threshold; and then reducing the value of CW until the value of CW reaches a minimum CW value (minCW).