INTERFERENCE WAVE POWER MEASUREMENT DEVICE, INTERFERENCE WAVE POWER MEASUREMENT METHOD, SIR MEASUREMENT DEVICE AND SIR MEASUREMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide an interference wave power measurement device, an interference wave power measurement method, an SIR measurement device and an SIR measurement method capable of calculating interference wave power by a comparatively small amount of operation.;SOLUTION: The SIR measurement device 10 includes: a first correlation circuit 22 which calculates a correlation value R_nm between a received pilot symbol S_nm and complex conjugate of a known signal C_nm; a delay part 14 which outputs a correlation value R_n-1m, obtained by delaying the correlation value R_nm by one timing to a comparison part 15; the comparison part 15 which compares the correlation value R_nm with the correlation value R_n-1mto calculate a difference between them; a difference integration part 16 which calculates average interference wave power after integrating the square of an absolute value of the difference; an average reception power calculation part 17 which calculates average reception power; and an SIR calculation part 18 which calculates average desired wave reception power from the average interference wave power and the average reception power, and calculates an SIR from the average desired wave reception power and the average interference wave power.;COPYRIGHT: (C)2011,JPO&INPIT