US 11,729,039 B2
ATSC 3.0 single frequency networks used for positioning navigation timing and synergy 4G / 5G networks
Michael J. Simon, Frederick, MD (US); Mark A. Aitken, Parkton, MD (US); Ebenezer K. Kofi, Hunt Valley, MD (US); and Louis Herbert Libin, Woodmere, NY (US)
Assigned to SINCLAIR BROADCAST GROUP, INC., Hunt Valley, MD (US)
Filed by Sinclair Broadcast Group, Inc., Hunt Valley, MD (US)
Filed on Aug. 27, 2021, as Appl. No. 17/459,274.
Claims priority of provisional application 63/072,477, filed on Aug. 31, 2020.
Prior Publication US 2022/0070042 A1, Mar. 3, 2022
Int. Cl. H04L 27/26 (2006.01); H04W 28/06 (2009.01)
CPC H04L 27/2626 (2013.01) [H04W 28/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
selecting a length for an advanced television system committee (ATSC) 3.0 frame for transmission by a single frequency network (SFN) transmitter;
aligning the SFN transmitter with a global positioning system (GPS) epoch;
storing geographical coordinates of the SFN transmitter and a corresponding SFN transmitter identification (TX ID) in a database;
encoding the SFN TX ID in a non-coherent symbol of a plurality of positioning navigation timing (PNT) symbols comprising a plurality of coherent symbols and the non-coherent symbol with orthogonal frequency-division multiplexing (OFDM) numerology to support positioning;
prepending the plurality of PNT symbols to the ATSC 3.0 frame to generate a modified ATSC 3.0 frame; and
transmitting the modified ATSC 3.0 frame using an SFN transmitter antenna of the SFN transmitter.