Interference cancellation in variable codelength systems for multi-access communication
US7697595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Oct 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/709727
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver employs low-rate processing to synthesize the effect of high-rate interference in a received multi-rate signal. Each high-rate subchannel is analyzed on its low-rate descendents to produce symbol estimates for each low-rate symbol interval. The symbol estimates are applied to low-rate descendent subchannels, which are then combined to synthesize the effects of the high-rate interference. An interference canceller processes the synthesized interference with the received signal for producing an interference-cancelled signal. Alternatively, analogous steps may be applied at high-rate to analyze, synthesize, and cancel the effects of low-rate interference in a multi-rate signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.