Wireless communication system for allocating transmission period
First Claim
1. A wireless network system having a transmission frame period having a preset duration, comprising:
- an access point (AP) for transmitting in the transmission frame period a power save multi-poll (PSMP) frame providing a downlink period and an initial uplink period to at least one station (STA) a sub PSMP frame providing an additional uplink period sufficient to transmit at least part of remaining queued uplink data; and
an STA for, if the initial uplink period provided by the PSMP frame is insufficient to transmit queued data, transmitting in the initial uplink period a part of the queued data and a resource request message requesting an allocation of additional resources for remaining queued data, receiving in the transmission frame period the sub PSMP frame providing by the AP an additional uplink period, the sub PSMP frame being transmitted by the AP after all of the periods provided by the PSMP frame, and transmitting the at least pert of the remaining queued data to the AP in the additional uplink period indicated by the sub PSMP frame.
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Accused Products
Abstract
A system 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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Citations
5 Claims
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1. A wireless network system having a transmission frame period having a preset duration, comprising:
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an access point (AP) for transmitting in the transmission frame period a power save multi-poll (PSMP) frame providing a downlink period and an initial uplink period to at least one station (STA) a sub PSMP frame providing an additional uplink period sufficient to transmit at least part of remaining queued uplink data; and
an STA for, if the initial uplink period provided by the PSMP frame is insufficient to transmit queued data, transmitting in the initial uplink period a part of the queued data and a resource request message requesting an allocation of additional resources for remaining queued data, receiving in the transmission frame period the sub PSMP frame providing by the AP an additional uplink period, the sub PSMP frame being transmitted by the AP after all of the periods provided by the PSMP frame, and transmitting the at least pert of the remaining queued data to the AP in the additional uplink period indicated by the sub PSMP frame. - View Dependent Claims (2, 3, 4, 5)
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Specification