METHOD AND APPARATUS FOR ACCESSING CHANNEL IN WLAN SYSTEM
First Claim
1. A method for performing channel access in a station (STA) in a wireless communication system, comprising:
- transmitting a power save (PS)-Poll for channel access to an access point (AP) in a listening interval when the STA is in a non-TIM mode,wherein the STA in a non-TIM mode does not receive a traffic indication map (TIM) element from the AP, andwherein the PS-Poll is transmitted without receiving the TIM element.
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Abstract
The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for accessing the channel from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises a step of transmitting a power save-poll (PS-poll) for channel accessing from a listening interval to an access point, wherein the station operates in a non-traffic indication map (TIM) mode which is not limited by a TIM element that is transmitted from the access point, and wherein the time of transmission of the PS-poll is not limited by the TIM element.
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Citations
14 Claims
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1. A method for performing channel access in a station (STA) in a wireless communication system, comprising:
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transmitting a power save (PS)-Poll for channel access to an access point (AP) in a listening interval when the STA is in a non-TIM mode, wherein the STA in a non-TIM mode does not receive a traffic indication map (TIM) element from the AP, and wherein the PS-Poll is transmitted without receiving the TIM element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A station (STA) for performing channel access in a wireless communication system comprising:
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a transceiver; and a processor, wherein if the STA is in a non-TIM mode in which the STA does not receive a traffic indication map (TIM) element from an access point (AP), the processor is configured to the transceiver to trasmint a power save (PS)-poll to the AP, and wherein the PS-poll is transmitted to AP without receiving the TIM element. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification