Equalizer training in a radiotelephone system
US5297169A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1991 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jun 28, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03796
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Reception of a transmission in a radiotelephone system including an equalizer is improved by training the equalizer using a synchronization portion of the transmission having a data pattern chosen for its correlation properties and retraining the equalizer using a portion of the transmission transmitted for a different purpose. In particular, the portion of the transmission transmitted for a different purpose may be the digital verification color code transmitted during each burst in a digital cellular mobile radiotelephone system. Reception quality is increased by training the equalizer at more frequent intervals without increasing transmission overhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.