Method and receiver for processing a multi-user signal
US7415001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2003 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Apr 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0204
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to the field of signal processing for telecommunications, and concerns a method and receiver for processing a multi-user signal. In the method of the invention, a multi-user signal is processed by a receiver using an iterative receiver process including the steps of (a) receiving a signal transmission including a plurality of user signals on a TDMA channel, (b) detecting one or more user signals and determining transmission channel estimates for each said user signal, (c) deriving a soft signal for a first user by subtracting, if available, weighted representations of other user signals from the detected user signal of said first user, (d) calculating a-posteriori probabilities for each symbol comprising the soft signal, (e) refining said probabilities utilizing the transmission channel estimate for the first user in an iterative decoding algorithm, wherein a probability is either partially or fully decoded depending on the application of decoder convergence criteria, and (f) returning to step (a), (b) or (c) with the refined probabilities forming part of the weighted representations to be subtracted from detected user signals of other users. This method allow…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.