STA Initiated Uplink Aggregation in Wireless Communication Systems

摘要

A method of STA-initiated uplink (UL) aggregation is proposed in a wireless communication system. Under the STA-initiated UL aggregation, an STA can gain access to the medium through contention and after winning the TXOP, it passes the TXOP ownership to its AP to allow it to trigger UL MU transmission. Thus, the AP has increased chance of utilizing the medium while maintains fairness to both legacy APs and STAs. In addition, once AP takes over ownership of the TXOP, if it detects idle secondary channels, it can enable UL aggregation over the idle secondary channels, thereby fully utilizing the entire system bandwidth.

主权项

1. A method comprising:
receiving a first uplink transmission from a first wireless station (STA) by an access point (AP) in a wideband wireless communication network, wherein the first uplink transmission indicates handing over a reserved transmit opportunity (TXOP) ownership of at least a primary channel; transmitting multiple trigger frames to a plurality of wireless stations (STAB) over multiple subbands of the wideband; and initiating an uplink aggregation over the multiple subbands for the plurality of STAs sharing the same TXOP, wherein each trigger frame serves as synchronizing the uplink aggregation transmission timing and packet transmit time, and as allocating uplink aggregation resources to the plurality of STAB.