Patent ID: 9232502
Filing Date: 2016-01-05
CPC Classification: H04W

Claim Text:
1. A method of wireless communication, comprising: a wireless station obtaining a transmission opportunity period (TXOP) for communicating with an access point (AP) over a wireless communication channel; the wireless station transmitting an announcement that includes an uplink transmission request (UTR) to share the TXOP with at least another wireless station, as a multi-user TXOP for simultaneously transmitting data from the wireless stations on multiple uplink (UL) spatial streams over the wireless communication channel; and causing one or more target wireless stations to receive an uplink transmission indication (UTI) frame, wherein the UTI frame comprises an enhanced clear to send (CTS) frame with a compressed receiver address (RA) field replacing a conventional RA field, the compressed RA field to represent multiple wireless stations and including an identifier for each of the one or more target wireless stations.