Apparatus, and associated method, for communicating a data block in a multi carrier modulation communication scheme together with an identification sequence superimposed thereon
US7864875B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Sep 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2647
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus, and an associated method, for facilitating communication of a data block communicated in an OFDM-based, communication system. Side-information required to be transmitted by many PAPR reduction schemes in OFDM is carried and transmitted by sending orthogonal binary sequences superimposed on the OFDM data sequence carrying the information to be transmitted. In one embodiment, a selected scrambling sequence is multiplied with an input data block to yield a desired Peak-To-Average Power Ratio. An identification sequence one-to-one corresponding to the scrambling sequence is superimposed on the resultant sequence and transmitted together. In the receiving station, the identification sequence is determined through correlation operations. This also determines the scrambling sequence. The effects of both sequences are finally removed from the information-carrying data sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.