Patent ID: 8681699
Filing Date: 2014-03-25
Classification: H04W

Abstract:
1. A system comprising: an access point configured for receiving signals, and configured for transmitting signals comprising contention frames, contention grants, and data frames; and one or more remotes each configured for receiving signals, and configured for transmitting signals comprising contention requests and data frames; wherein the one or more remotes having a pending data frame are each configured for transmitting a contention request to the access point within a selected period of time after receiving one of the contention frames from the access point; wherein the access point is configured for tallying a number of the contention requests received during the contention period and, if the number of the tallied contention requests exceed a selected threshold, transmitting a second contention frame that defines a second contention period that is divided into a plurality of slots; and wherein the one or more remotes having a pending data frame are configured to select one of the slots in which to transmit a second contention request.