METHOD AND APPARATUS FOR ALLOCATING TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM, AND SYSTEM THEREFOR

摘要

Method and apparatus is provided for efficiently allocating transmission period in a wireless network system. Access point transmits a PSMP frame indicating downlink period provided to each station (STA) and a minimum amount of uplink period allocated to each STA, and at least one sub PSMP frame indicating uplink period provided for an STA that transmitted a resource request message for remaining queued data in the uplink period indicated by PSMP frame. If the uplink period is insufficient to transmit the queued data, the STA transmits data unit including a part of the queued data and resource request message for the remaining queued data in the uplink period. After transmitting the resource request message, the STA receives sub PSMP frame after the full period indicated by the sub PSMP frame, and transmits remaining queued data to the AP in the uplink period indicted by the sub PSMP frame.