Randomization using an XOR scrambler in multicarrier communications
US9191039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jun 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2614
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multicarrier transceiver can have a plurality of carriers and convert a bit stream into a plurality of parallel words for QAM on the plurality of carriers, a length of one of the plurality of parallel words for QAM on the plurality of carriers, a length of one of the plurality of parallel words corresponding to a number of bits modulated on an associated carrier of the plurality of carriers for the one of the plurality of parallel words, the transceiver further including an XOR scrambler that scrambles the plurality of parallel words, a QAM encoder tha maps all or part of each scrambled word to a QAM constellation point to generate a plurality of QAM constellation points, and a transmitter that transmits the plurality of QAM constellation points using the plurality of carriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.