Patent ID: 7573934
Filing Date: 2009-08-11
Classification: H04B

Abstract:
1. A rake receiver for use in a spread spectrum communication system comprising: a timing detecting unit to detect a reception timing t an inverse spreading timing setting unit to set, as a timing for inverse spreading, a timing t a plurality of correlators each of which to obtain an inverse spread signal of the received signal corresponding to each timing set by the inverse spreading timing setting; a signal composing unit to compose outputs of the plurality of correlators; and a circuit provided between the correlators and the signal composing unit, to compose a multi-path interference signal (mics(i,j,k)) of a path k (k≠j) from the following to reproduce interference α j I i,j and to subtract the interference MICS(i,j) from the ith path, wherein r i,j and r′ k are coefficients, wherein when the multi-path interference signal (mics(i,j,k)) is composed, the coefficients r wherein α and the multi-path interference signal (mics(i,j,k)) is composed using the maximal ratio composition.