Method of discovering and informing of service in wireless LAN system and apparatus for supporting same
First Claim
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1. A method for discovering a service by a station in a wireless local area network, the method comprising:
- randomly selecting, by a station, a service announcement interval from a plurality of service announcement intervals;
randomly selecting, by the station, a value of a backoff counter in a range of zero to a predetermined value;
when the value of the backoff counter reaches zero, transmitting, by the station, a service announcement frame to at least one neighboring station from a start of the selected service announcement interval,wherein the service announcement frame includes service information, channel information and interval information,wherein the service information indicates a type of service from a plurality of types of service provided by the station,wherein the channel information indicates a channel in which the station will be available for the service, andwherein the interval information indicates a time period that the station will be available for the service in the channel indicated by the channel information.
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Abstract
The present invention relates to a method of informing of a service that is performed by a first station (STA) in a wireless LAN system. The method includes receiving a second service informing frame from a second STA, wherein the second service informing frame includes second service information that is the information on a service served by the second STA; and transmitting a first service informing frame. The first service informing frame includes first service information that is the information on a service served by the first STA, and the second service information.
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6 Claims
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1. A method for discovering a service by a station in a wireless local area network, the method comprising:
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randomly selecting, by a station, a service announcement interval from a plurality of service announcement intervals; randomly selecting, by the station, a value of a backoff counter in a range of zero to a predetermined value; when the value of the backoff counter reaches zero, transmitting, by the station, a service announcement frame to at least one neighboring station from a start of the selected service announcement interval, wherein the service announcement frame includes service information, channel information and interval information, wherein the service information indicates a type of service from a plurality of types of service provided by the station, wherein the channel information indicates a channel in which the station will be available for the service, and wherein the interval information indicates a time period that the station will be available for the service in the channel indicated by the channel information. - View Dependent Claims (2, 3)
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4. A device configured for discovering a service for a wireless local area network, the device comprising:
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a transceiver configured to receive and transmit radio signals; and a processor operatively coupled with the transceiver and configured to; randomly select a service announcement interval from a plurality of service announcement intervals; randomly select a value of a backoff counter in a range of zero to a predetermined value; and when the value of the backoff counter reaches zero, transmit, via the transceiver, a service announcement frame to at least one neighboring station from a start of the selected service announcement interval, wherein the service announcement frame includes service information, channel information and interval information, wherein the service information indicates a type of service from a plurality of types of service provided by the station, wherein the channel information indicates a channel in which the device will be available for the service, and wherein the interval information indicates a time period that the station will be available for the service in the channel indicated by the channel information. - View Dependent Claims (5, 6)
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Specification