| 摘要 |
An iterative receiver (200) is proposed for receiving in a cell (105c) a signal (A) and for providing information (b 1 ,b 2 ,r 1 ,r 2 ) carried on said signal (A) by execution of at least one processing iteration. The receiver (200) comprises: an estimate assembly (210-235) for receiving the signal (A) and providing, at each one of said processing iterations, a respective information estimate (LLR b1 ,LLR b2 ,LLR r1 ,LLR r2 ); a regeneration assembly (250-265) for receiving, at each processing iteration, said information estimate (LLR b1 ,LLR b2 ,LLR r1 ,LLR r2 ) provided by the estimate assembly (210-235) at that iteration, and for providing a regenerated signal (B) therefrom based on said information estimate (LLR b1 ,LLR b2 ,LLR r1 ,LLR r2 ) and on attenuation of radio channels over which the signal (A) has been transmitted; an interference estimate unit (265) for providing, at each iteration, an interference estimate (C) based on the signal (A) and the regenerated signal (B), the estimate assembly (210-235) providing, starting from a second processing iteration of said processing iterations, said information estimate (LLR b1 ,LLR b2 ,LLR r1 ,LLR r2 ) based on said interference estimate; and an extraction unit (240) for extracting said information (b 1 , b 2 , r 1 , r 2 ) from said information estimate (LLR b1 ,LLR b2 ,LLR r1 ,LLR r2 ). |
