UNIFORM WLAN MULTI-AP PHYSICAL LAYER METHODS
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Abstract
A method and apparatus are disclosed for training and feedback in sectorized transmissions. An IEEE 802.11 station may receive a Sector Training Announcement frame from an AP. The station may then receive a plurality of Training frames from the AP, wherein each of the plurality of Training frames is separated by a short interframe space (SIFS) and each of the plurality of Training frames is received using a different sectorized antenna pattern. The station may generate a Sector Feedback frame indicating a sector based on the plurality of Training frames. The station may send the Sector Feedback frame to the AP. The Sector Feedback frame may indicate a desire to enroll in sectorized transmissions. Alternatively, the Sector Feedback frame may indicate a desire to change sectors.
72 Citations
40 Claims
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1. -20. (canceled)
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21. A method for use m an IEEE 802.11 station, the method comprising:
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receiving a Sector Training Announcement frame from an access point (AP); receiving a plurality of Training frames from the AP, wherein each of the plurality of Training frames is separated by a short interframe spacing (SIFS) and each of the plurality of Training frames is transmitted by the AP using a different sectorized antenna pattern; generating a Sector Feedback frame indicating a preferred sector based on the plurality of Training frames; and sending the Sector Feedback frame to the AP. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An IEEE 802.11 station comprising:
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a receiver configured to receive a Sector Training Announcement frame from an access point (AP); the receiver further configured to receive a plurality of Training frames from the AP, wherein each of the plurality of Training frames is separated by a short interframe space (SIFS) and each of the plurality of Training frames is transmitted by the AP using a different sectorized antenna pattern; a processor configured to generate a Sector Feedback frame indicating a preferred sector based on the plurality of Training frames; and a transmitter configured to transmit the Sector Feedback frame to the AP. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification