US 11,923,966 B2
Dynamic configuration of a flexible orthogonal frequency division multiplexing PHY transport data frame preamble
Kevin A. Shelby, Austin, TX (US); Michael J. Simon, Frederick, MD (US); Mark Earnshaw, Kanata (CA); and Zahir Jaffer Raza, Waterloo (CA)
Assigned to ONE MEDIA, LLC, Cockeysville, MD (US)
Filed by ONE MEDIA, LLC, Hunt Valley, MD (US)
Filed on Oct. 8, 2020, as Appl. No. 17/065,630.
Application 17/065,630 is a continuation of application No. 15/480,106, filed on Apr. 5, 2017, granted, now 10,833,789.
Application 15/480,106 is a continuation of application No. 14/835,260, filed on Aug. 25, 2015, granted, now 9,762,347, issued on Sep. 12, 2017.
Claims priority of provisional application 62/041,478, filed on Aug. 25, 2014.
Prior Publication US 2021/0143929 A1, May 13, 2021
Int. Cl. H04J 13/00 (2011.01); H04J 11/00 (2006.01); H04J 13/14 (2011.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04J 13/0062 (2013.01) [H04J 11/00 (2013.01); H04J 13/0059 (2013.01); H04J 13/14 (2013.01); H04L 5/0044 (2013.01); H04L 5/0048 (2013.01); H04L 27/26136 (2021.01); H04L 27/2627 (2013.01); H04L 27/2646 (2013.01); H04L 27/2656 (2013.01); H04L 27/2663 (2013.01); H04L 27/2692 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A receiver configured to be used in a broadcast network, the receiver comprising:
a memory storing program instructions; and
a processor, upon executing the program instructions, configured to:
receive an initial Orthogonal Frequency Division Multiplexing (OFDM) symbol of a frame control of a preamble of a broadcast communication frame;
receive a subsequent OFDM symbol of the frame control,
wherein the initial OFDM symbol is based on a modulation of a frequency domain Constant Amplitude Zero Auto-Correlation (CAZAC) sequence by a pseudo-noise (PN) sequence, and
wherein the frequency domain CAZAC sequence modulated by the PN sequence determines a service type associated with the broadcast communication frame and wherein the PN sequence is reset at a start of the preamble;
use the initial ODFM symbol for coarse synchronization and initial channel estimation;
determine a cyclic shift associated with the subsequent OFDM symbol, wherein the cyclic shift is based on frame configuration information associated with the broadcast communication frame and wherein the frame configuration information comprises parameters of the preamble; and
use the subsequent OFDM symbol for acquisition of one or more subsequent OFDM symbols of the preamble.