Bit error estimates from pilot signals
US6892053B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2000 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Nov 15, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Bit error rate estimates are used for measuring link quality in a radio telecommunications system. Unbiased, raw bit error estimates are produced from existing pilot symbols. The bit error rate estimates may be generated without incurring extra signaling overhead. More particularly, an estimation of link quality is obtained by receiving control signals in a radio receiver, where each control signal may include one or more pilot symbols deriving a channel estimate for each control signal, modifying each channel estimate as a function of the corresponding control signal's contribution to the channel estimate, and deriving a link quality measure based on said modified channel estimates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.