Patent ID: 7701888
Filing Date: 2010-04-20
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A station (STA) apparatus for receiving an allocated transmission period in a frame period in a wireless network system, the apparatus comprising: a processor which analyzes a power save multi-poll (PSMP) frame allocating a downlink period and an uplink period in the frame period provided by an access point (AP), and a subsequent PSMP frame allocating at least one of an additional downlink period and an additional uplink period in the frame period after the expiration of the downlink and uplink periods provided by the PSMP frame; and a transceiver which receives the PSMP frame and the subsequent PSMP frame from the AP, receives data from the AP during the downlink period and transmits data to the AP during the uplink period, and receives data from the AP during the additional downlink in response to there being additional data to be received and transmits data to the AP during the additional uplink period in response to there being additional data to be transmitted.