Grouping-based data transceiving method in wireless LAN system and apparatus for supporting same
First Claim
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1. A method for accessing a channel in a wireless local area network system, the method performed by a station comprising:
- receiving, from an access point, channel access information for restricting a channel access to a group of stations during a channel access period within a beacon interval;
determining whether the station is allowed to access a channel during the channel access period based on the channel access information; and
if it is determined that the station is allowed to access the channel, accessing the channel during the channel access period by contending with other stations to transmit a power save poll frame, by sending the power save poll frame to the access point, by receiving a data frame from the access point, and by transmitting an acknowledgement (ACK) message in response to the data frame to the access point,wherein the channel access information includesa group ID field indicating the group of stations that is allowed to access the channel during the channel access period,a channel access period start field indicating a start time of the channel access period, anda channel access period duration field indicating a duration of the channel access period.
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Abstract
Provided is a data transceiving method performed by a station (STA) in a wireless LAN system. The method comprises receiving a channel access information element from an access point, said channel access information element containing STA group information and channel access interval information, said STA determining whether the channel access interval specified by the channel access interval information is for the STA based on the STA group information; and transceiving data to/from said access point during the channel access interval if the channel access interval is for the STA.
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12 Claims
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1. A method for accessing a channel in a wireless local area network system, the method performed by a station comprising:
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receiving, from an access point, channel access information for restricting a channel access to a group of stations during a channel access period within a beacon interval; determining whether the station is allowed to access a channel during the channel access period based on the channel access information; and if it is determined that the station is allowed to access the channel, accessing the channel during the channel access period by contending with other stations to transmit a power save poll frame, by sending the power save poll frame to the access point, by receiving a data frame from the access point, and by transmitting an acknowledgement (ACK) message in response to the data frame to the access point, wherein the channel access information includes a group ID field indicating the group of stations that is allowed to access the channel during the channel access period, a channel access period start field indicating a start time of the channel access period, and a channel access period duration field indicating a duration of the channel access period. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A station for accessing a channel in a wireless local area network system, the station comprising:
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a transceiver that receives and transmits radio signals; and a processor, operatively coupled with the transceiver, that; instructs the transceiver to receive, from an access point, channel access information for restricting a channel access to a group of stations during a channel access period within a beacon interval; determines whether the station is allowed to access a channel during the channel access period based on the channel access information; and if it is determined that the station is allowed to access the channel, instructs the transceiver to access the channel during the channel access period by contending with other stations to transmit a power save poll frame, by sending the power save poll frame to the access point, by receiving a data frame from the access point, and by transmitting an acknowledgement (ACK) message in response to the data frame to the access point, wherein the channel access information includes a group ID field indicating the group of stations that is allowed to access the channel during the channel access period, a channel access period start field indicating a start time of the channel access period, and a channel access period duration field indicating a duration of the channel access period. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification