System and method for scrambling the phase of the carriers in a multicarrier communications system
US8718158B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Dec 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2627
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method that scrambles the phase characteristic of a carrier signal are described. The scrambling of the phase characteristic of each carrier signal includes associating a value with each carrier signal and computing a phase shift for each carrier signal based on the value associated with that carrier signal. The value is determined independently of any input bit value carried by that carrier signal. The phase shift computed for each carrier signal is combined with the phase characteristic of that carrier signal so as to substantially scramble the phase characteristic of the carrier signals. Bits of an input signal are modulated onto the carrier signals having the substantially scrambled phase characteristic to produce a transmission signal with a reduced PAR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.