Method and system for multi-user transmit opportunity for multi-user multiple-input-multiple-output wireless networks

Abstract

Wireless communication in a wireless system using a multiple user transmission opportunity is provided. Data blocks at a wireless station are transmitted to multiple wireless receivers over a shared wireless communication medium. The data blocks are organized in order of transmission priority based on access categories. Contention for access to the communication medium during a transmission opportunity period is based on a backoff timer of each access category and the transmission priority. Upon successful contention for a transmission opportunity period, during the transmission opportunity period, a data block of a primary access category is wirelessly transmitted from the wireless station to one or more primary destination wireless receivers. Simultaneously, a data block of a secondary access category is wirelessly transmitted from the wireless station to one or more secondary destination wireless receivers.

What is claimed is: 
     
         1 . A method of wireless communication in a wireless communication system, comprising:
 receiving a data frame from a transmitting station during the transmission opportunity (TXOP) period, wherein the data frame comprises at least one of a first data corresponding to a primary access category and a second data corresponding to a secondary access category,   wherein the primary access category is associated with an enhanced distributed channel access function (EDCAF) that gains channel access, and the secondary access category is not associated with the EDCAF that gains channel access.