Patent ID: 7668131
Filing Date: 2010-02-23
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A method of allocating, by an access point (AP), a transmission period in a frame period in a wireless network system, the method comprising: transmitting a first power save multi-poll (PSMP) frame allocating a downlink period and an uplink period to a station (STA), wherein the uplink period is provided to receive queued data from the STA; in response to a resource request message from the STA requesting allocation of an additional resource for transmitting at least a portion of remaining queued data of the STA, and after the downlink and uplink periods, transmitting a subsequent PSMP frame allocating an additional uplink period, wherein the subsequent PSMP frame is an additional PSMP frame following the first PSMP frame; and receiving the at least a portion of the remaining queued data from the STA during the additional uplink period.