System and method for synchronization for OFDMA transmission
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Jul 6, 2016
filing date -
Oct 8, 2014
priority date (Note) -
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Abstract
In an example of wireless communications, an access point may send a downlink frame to multiple stations. The downlink frame may include information indicative of a cyclic prefix length to be utilized by the stations. In response, some or all of the stations may transmit their respective uplink frames to the access point. A cyclic prefix for a portion of each respective uplink frame may have a cyclic prefix length corresponding to the information included in the downlink frame. The downlink frame may be, for example, a beacon frame or a trigger frame. A trigger frame may allocate resources for uplink orthogonal frequency division multiple access (OFDMA) transmission. Other methods, apparatus, and computer-readable media are also disclosed.
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