US 12,261,654 B2
Robust mode for power line communications
Il Han Kim, Allen, TX (US); Tarkesh Pande, Richardson, TX (US); and Anuj Batra, Dallas, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Sep. 20, 2023, as Appl. No. 18/470,659.
Application 17/333,374 is a division of application No. 16/239,732, filed on Jan. 4, 2019, granted, now 11,025,301, issued on Jun. 1, 2021.
Application 18/470,659 is a continuation of application No. 17/333,374, filed on May 28, 2021, granted, now 11,824,597.
Application 16/239,732 is a continuation of application No. 14/816,671, filed on Aug. 3, 2015, granted, now 10,177,814, issued on Jan. 8, 2019.
Application 14/816,671 is a continuation of application No. 14/052,913, filed on Oct. 14, 2013, granted, now 9,100,102, issued on Aug. 4, 2015.
Application 14/052,913 is a continuation in part of application No. 13/347,366, filed on Jan. 10, 2012, abandoned.
Claims priority of provisional application 61/720,448, filed on Oct. 31, 2012.
Claims priority of provisional application 61/718,419, filed on Oct. 25, 2012.
Claims priority of provisional application 61/713,967, filed on Oct. 15, 2012.
Claims priority of provisional application 61/712,922, filed on Oct. 12, 2012.
Claims priority of provisional application 61/431,518, filed on Jan. 11, 2011.
Prior Publication US 2024/0014854 A1, Jan. 11, 2024
Int. Cl. H04B 3/54 (2006.01)
CPC H04B 3/542 (2013.01) [H04B 2203/5433 (2013.01); H04B 2203/5466 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method comprising:
when a header of a packet data unit (PDU) indicates use of a robust mode:
encoding a payload of the PDU to produce an encoded payload;
performing scrambling based on the encoded payload to produce a scrambled payload;
performing interleaving based on the scrambled payload to produce an interleaved signal;
applying subcarrier modulation based on the interleaved signal to produce a modulated signal;
applying an inverse Fourier transform to the modulated signal; and
transmitting an output signal based on a result of applying the inverse Fourier transform to the modulated signal, wherein, in the robust mode, the payload is encoded using forward error correction (FEC) and differential binary phase shift keying (DBPSK); and
when the header of the PDU indicates use of a normal mode, the payload is encoded without using FEC and without using DBPSK.