- Patent Title: Multi-length cyclic prefix for OFDM transmission in PLC channels
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Application No.: US15695983Application Date: 2017-09-05
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Publication No.: US10236934B2Publication Date: 2019-03-19
- Inventor: Tarkesh Pande , Anand G. Dabak , Il-Han Kim
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Kenneth Liu; Charles A. Brill; Frank D. Cimino
- Main IPC: H04B3/54
- IPC: H04B3/54

Abstract:
Embodiments of the invention provide multiple cyclic prefix lengths for either both the data-payload and frame control header or only the data payload. Frame control header (FCH) and data symbols have an associated cyclic prefix. A table is transmitted in the FCH symbols, which includes a cyclic prefix field to identify the cyclic prefix length used in the data payload. A receiver may know the cyclic prefix length used in the FCH symbols in one embodiment. In other embodiments, the receiver does not know the FCH cyclic prefix length and, therefore, attempts to decode the FCH symbols using different possible cyclic prefix lengths until the FCH symbols are successfully decoded.
Public/Granted literature
- US20170366230A1 Multi-Length Cyclic Prefix for OFDM Transmission in PLC Channels Public/Granted day:2017-12-21
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