US 12,143,262 B2
Time stamp method of location leakage in high split HFC network
Victor Zinevich, Voronezh (RU); and Greg Tresness, Manlius, NY (US)
Assigned to Arcom Digital, LLC, Syracuse, NY (US)
Filed by Arcom Digital, LLC, Syracuse, NY (US)
Filed on Mar. 24, 2022, as Appl. No. 17/703,059.
Claims priority of provisional application 63/175,823, filed on Apr. 16, 2021.
Claims priority of provisional application 63/166,589, filed on Mar. 26, 2021.
Prior Publication US 2022/0311660 A1, Sep. 29, 2022
Int. Cl. H04L 41/0677 (2022.01); H04B 7/185 (2006.01); H04L 1/00 (2006.01); H04L 12/28 (2006.01); H04L 43/50 (2022.01)
CPC H04L 41/0677 (2013.01) [H04B 7/18506 (2013.01); H04L 1/0071 (2013.01); H04L 12/2801 (2013.01); H04L 43/50 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A time stamp method of location leakage in an aeronautical band of a high split hybrid-fiber-coaxial (HFC) comprising:
scheduling at a cable modem termination system (CMTS), a generation of a plurality of orthogonal frequency division multiple access (OFDMA) upstream data profile (OUDP) bursts by at least one cable modem (CM) within a node in a fixed sequence, a first OUDP burst in said generation of OUDP bursts synchronous with a global positioning satellite (GPS) half second sync pulse;
measuring a field leakage detector time stamp of a plurality of detected OUDP bursts relative to the GPS half second synch pulse, and sending a report to a leakage data server with a set of current GPS coordinates of a leakage detector, said field leakage detector time stamp, a detected leak level, and a measured OUDP time stamp; and
calculating at said leakage data server, a CM ID based on said measured OUDP time stamp and a duration of said first OUDP burst combined with a first query to said CMTS and a second query to a CM database, to define a physical address of a CM corresponding to said CM ID,
wherein said step of calculating comprises calculating a routing to an integer value of a CM ID=X, based on said measured OUDP time stamp and said OUDP burst duration, and a spatial analysis of adjacent CMs in a sequence with IDs=X−1, X and X+1, and then selecting said CM ID which is located closer to a leakage detector location at about said measured OUDP time stamp.