Turbo-coding DOCSIS information for satellite communications

US8010882B2 · kind B2 · utility

Assignee

• Broadcom Corporation · US

Inventors

• Mark Dale · Laguna Hills, US
• Dorothy Lin · Irvine, US
• Jen-chieh Chien · Lake Forest, US
• Alan Gin · Newport Beach, US
• Rocco Brescia · Laguna Beach, US
• Alan Kwentus · Torrance, US
• David Hartman · Laguna Hills, US
• Joyce Wang · Watertown, US

Key dates

• Filing date: Apr 5, 2010
• Grant date: Aug 30, 2011
• Expiry date: Apr 5, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2025/0342
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Methods and systems for modifying DOCSIS-based transmission paths for communication in higher frequency and/or wireless environments, such as wireless terrestrial communication systems and satellite communication systems. An inner turbo-code is combined with a DOCSIS based Reed-Solomon (“RS”) forward error correction (“FEC”) coding scheme, to produce a concatenated turbo-RS code (other FEC codes can be utilized). In phase and quadrature phase (“I-Q”) processing is utilized to enable relatively low cost up-converter implementations. The I-Q processing is preferably performed at baseband, essentially pre-compensating for analog variations in the transmit path. Power amplifier on/off control capable of controlling on/off RF power control of remote transmitters is modulated on a transmit cable to reduce the need for a separate cable.