Pre-distortion method for telecommunication system and transmitter for mobile terminal of MC-CDMA telecommunication system
US7315529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2003 |
| Grant date | Jan 1, 2008 |
| Priority date | — |
| Expiry date | Jan 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention concerns a pre-distortion method for a telecommunication system comprising a base station and at least one user. Each symbol of said user is spread with a coding sequence over a plurality of carriers to produce a plurality of corresponding frequency components of a signal (Si(t)) to be transmitted over an uplink transmission channel to said base station. Each frequency component is weighted by a weighting coefficient (ωi(l)), said weighting coefficient being determined from the downlink channel response coefficient (hi(l)) at the corresponding frequency and from a value of the noise variance (σ2) affecting said carriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.