SIMPLIFIED SCHEDULING INFORMATION FOR ACKNOWLEDGEMENT IN A WIRELESS COMMUNICATION SYSTEM
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United States of America Patent
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Issued Date -
May 4, 2017
app pub date -
Oct 28, 2016
filing date -
Oct 28, 2015
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Abstract
A method is implemented by a station (STA) in a wireless network to provide an uplink (UL) Orthogonal Frequency Division Multiple Access (OFDMA) acknowledgement. The method includes receiving a first Physical Layer Protocol Data Unit (PPDU), where a Media Access Control (MAC) header of a MAC Protocol Data Unit (MPDU) in the first PPDU includes a Simplified Scheduling Information subfield that carries scheduling information for scheduling the UL OFDMA acknowledgement. The method further includes generating a second PPDU that includes an acknowledgement frame, determining an uplink cyclic prefix length to apply to the second PPDU based on a cyclic prefix length of the first PPDU, where the uplink cyclic prefix length is longer than the cyclic prefix length of the first PPDU, and transmitting the second PPDU through a wireless medium according to the scheduling information, where the uplink cyclic prefix length is applied to the second PPDU.
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