Software-based digital receiver adaptable to multiple multiplexing schemes
US6650653B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jan 19, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0845
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a digital radio receiver, transmitted symbols are recovered from a received signal that includes tim-shifted and frequency-shifted copies of a transmitted signal. A channel estimator extracts channel characteristics from a training signal. Receiver data and software for executing in a processor are stored in a memory connected to the processor. A parameter controller generates receiver configuration parameters from the channel characteristics and the receiver data. The received signal is decomposed into a matrix of samples according to the receiver configuration parameters to adapt the receiver to a multiple multiplexing schemes. An inner product is formed of the samples and channel characteristics, and the transmitted symbols are recovered from the inner product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.