Method for allocating transmission period in a wireless communication system
First Claim
1. A method for receiving an allocated transmission period in a frame period in a wireless network system, said frame period having a preset duration, the method comprising the steps of:
- receiving a power save multi-poll (PSMP) frame providing a downlink period and an uplink period provided by an access point (AP);
receiving data from the AP in the downlink period provided by the PSMP frame and transmitting data to the AP in the uplink period provided by the PSMP frame;
after expiration of the downlink and uplink periods provided by the PSMP frame, receiving in the frame period at least one sub-PSMP frame providing at least one of an additional downlink period and an additional uplink period; and
receiving data in the additional downlink period provided by the sub-PSMP frame if there is additional data to be received, and transmitting data in the additional uplink period provided by the sub-PSMP frame if there is additional data to be transmitted.
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Accused Products
Abstract
A method is provided for efficiently allocating a transmission period in a WLAN system. An access point (AP) transmits a PSMP message providing a downlink period and an uplink period provided to each station (STA), and at least one sub PSMP frame indicating a period of at least one of a downlink and an uplink for an STA requiring additional resource allocation. After exchanging data with the AP in the downlink and uplink periods provided by the PSMP frame, if there is a need for additional resource allocation, the STA receives the at least one sub PSMP frame and exchanges data with the AP in the period provided by the each sub PSMP frame.
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Citations
5 Claims
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1. A method for receiving an allocated transmission period in a frame period in a wireless network system, said frame period having a preset duration, the method comprising the steps of:
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receiving a power save multi-poll (PSMP) frame providing a downlink period and an uplink period provided by an access point (AP);
receiving data from the AP in the downlink period provided by the PSMP frame and transmitting data to the AP in the uplink period provided by the PSMP frame;
after expiration of the downlink and uplink periods provided by the PSMP frame, receiving in the frame period at least one sub-PSMP frame providing at least one of an additional downlink period and an additional uplink period; and
receiving data in the additional downlink period provided by the sub-PSMP frame if there is additional data to be received, and transmitting data in the additional uplink period provided by the sub-PSMP frame if there is additional data to be transmitted. - View Dependent Claims (2, 3, 4, 5)
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Specification