System and method for measuring signal to noise values in an adaptive wireless communication system
US7577100B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 26, 2002 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Sep 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0003
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The system and method optimizes a SNR calculation for a signal received during a downlink burst even in the absence of a node's preferred modulation. This system and method are used in communication systems that include a multi-modulation modem. An adaptation factor is selected whereby its use during portions of the downlink burst, which were not modulated using the preferred modulation, provides the SNR. The selected adaptation factor is used by an equalizer to perform channel inversion to the signal. The system and method can be used in, for example, an FDD or TDD communication system. Such communication systems can be, for example, symmetric, asymmetric, and/or adaptive in their operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.