Invention Grant
- Patent Title: Method and apparatus for performing forward error correction in an orthogonal frequency division multiplexed communication network
- Patent Title (中): 在正交频分复用通信网络中执行前向纠错的方法和装置
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Application No.: US12581063Application Date: 2009-10-16
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Publication No.: US08418036B2Publication Date: 2013-04-09
- Inventor: Shaw Yuan , Arndt Mueller
- Applicant: Shaw Yuan , Arndt Mueller
- Applicant Address: US CA San Diego
- Assignee: Entropic Communications, Inc.
- Current Assignee: Entropic Communications, Inc.
- Current Assignee Address: US CA San Diego
- Agency: Sheppard, Mullin, Richter & Hampton LLP
- Agent Bruce Greenhaus
- Main IPC: H03M13/00
- IPC: H03M13/00

Abstract:
According to some embodiments of the disclosed method and apparatus, systems and methods are provided that utilize extra payload capacity present in a symbol pad of a PHY payload to decrease the coding rate of an FEC coding scheme without increasing the symbol rate or decreasing the PHY rate of a corresponding data transmission. If a symbol pad length that would result from encoding a MAC frame using a default coding scheme would be at least as great as a parity length of the default coding scheme, and a new coding scheme maintaining the same parity length but having a reduced information bit length may be determined and used to encode the MAC frame. Owing the reduced information bit length, the new coding scheme has a reduced coding rate, but maintains the same number of OFDM symbols as the default coding scheme.
Public/Granted literature
Information query
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