Patent ID: 9693367
Date: 2017-06-27
CPC Classifications: H04L,H04W

Claim:
1. A method of controlling operation of a wireless network comprising an access point and a plurality of stations, comprising: transmitting a first message comprising a parameter indicative of a set of stations authorized to contend for an enhanced transmission opportunity (TXOP); receiving a first number of contention requests having at least some overlap in time domain and frequency domain, wherein each of the first number of contention requests includes a first special preamble and one or more orthogonal contention field symbols; monitoring a wireless channel for the first special preamble in each of the first number of content contention requests, wherein the first special preamble includes a signature symbol to identify and allow decoding of the one or more orthogonal contention field symbols; decoding the one or more orthogonal contention field symbols of a contention request when the one or more orthogonal contention field symbols are identified by the first special preamble of the contention request; performing contention resolution of the first number of transmission requests using the one or more orthogonal contention field symbols extracted from the first number of contention requests; and transmitting, based on the contention resolution, a second message identifying stations allowed to transmit in the enhanced TXOP.