Apparatus for allocating transmission period in a wireless...

Details Apparatus for allocating transmission period in a wireless... Apparatus for allocating transmission period in a wireless...

2006-10-17

2010-02-23

Afshar, Kamran (Department: 2617)

Multiplex communications

Communication over free space

Signaling for performing battery saving

C370S318000, C370S328000, C370S338000, C370S329000, C370S341000, C455S574000, C455S522000

Reexamination Certificate

active

07668130

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

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