Method and apparatus for transmitting a beacon and communicating a frame
First Claim
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1. A method of transmitting a beacon, the method comprising:
- detecting the condition of a channel;
generating a beacon having information concerning a Traffic Indication Map (TIM) and a beacon interval; and
transmitting the generated beacon to a station prior to the lapse of PIFS (Point Coordination Function Interframe Space) after detecting the condition of the channel.
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Abstract
A beacon having a traffic indication map (TIM) and information concerning a beacon interval is generated. The generated beacon is transmitted to stations prior to lapse of Point Coordination Function Interframe Space (PCF IFS) after detecting the condition of the channel. The beacon is transmitted prior to the lapse of PIFS from the time of detecting the condition of the channel to the stations. Therefore, the beacon is transmitted to the stations prior to a frame having a data is transmitted to the stations.
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Citations
24 Claims
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1. A method of transmitting a beacon, the method comprising:
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detecting the condition of a channel;
generating a beacon having information concerning a Traffic Indication Map (TIM) and a beacon interval; and
transmitting the generated beacon to a station prior to the lapse of PIFS (Point Coordination Function Interframe Space) after detecting the condition of the channel. - View Dependent Claims (2, 3)
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4. A method of transmitting/receiving a frame using transmission of a beacon, the method comprising:
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detecting the condition of a channel;
generating a beacon having information concerning a Traffic Indication Map (TIM) and a beacon interval;
detecting a SIFS (short Interframe Space), a PIFS (Point Coordination Function Interframe Space) and a DIFS (Distributed Coordination Function Interframe Space) from the time of detecting the condition of the channel;
transmitting the generated beacon to a station prior to the lapse of the PIFS after detecting the condition of the channel; and
communicating a frame having data after the DIFS from the time of detecting the condition of the channel. - View Dependent Claims (5, 6, 7, 8)
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9. An apparatus for transmitting a beacon, the apparatus comprising:
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a channel condition detecting section for detecting the condition of a channel; and
a beacon section for generating the beacon and transmitting the generated beacon prior to the lapse of a PIFS (Point Coordination Function Interframe Space) after detecting the condition of the channel, wherein the beacon includes information corresponding to a traffic indication map (TIM) and a beacon interval. - View Dependent Claims (10, 11)
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12. The apparatus for communicating a frame using transmission of a beacon, the apparatus comprising:
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a channel condition detecting section for detecting the condition of a channel;
a beacon section for generating the beacon and providing the generated beacon prior to lapse of a PIFS (PCF IFS) after detection of the condition of the channel, the beacon including information concerning a traffic indication map (TIM) and a beacon interval;
a timing section for detecting a time elapsed from the time of detecting the condition of the channel; and
a frame section for communicating the frame having data in accordance with the time elapsed. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of transmitting/receiving a frame in a wireless network,
the method comprising: -
transmitting a beacon to a station with a transmission priority higher than the transmission priority of a frame; and
communicating the frame having at least one datum to the station with a transmission priority lower than the transmission priority of the beacon. - View Dependent Claims (22, 23, 24)
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Specification