Interference cancellation with a time-sliced architecture
US8599979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Jun 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0048
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected. The interference is symbol interference from an earlier successfully decoded user's symbols. The user symbol interference is determined by cross correlations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.