MIMO receiver, MIMO reception method and wireless...

Details MIMO receiver, MIMO reception method and wireless... MIMO receiver, MIMO reception method and wireless...

2006-03-02

2008-12-16

Vuong, Quochien B (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S307000, C375S147000, C375S267000, C375S360000

Reexamination Certificate

active

07466969

ABSTRACT:
A MIMO receiver, a MIMO reception method and a wireless communication system capable of accurate MMSE control even when each transmit antenna uses a different chip power ratio in MIMO filter reception. A correction coefficient calculator receives as input the chip power ratio of each transmit antenna, and estimates such pilot power that renders the chip power ratio of each transmit antenna equal to that of a reference transmit antenna. Thereby, the correction coefficient calculator calculates a correction coefficient βmto correct the actual pilot power of each transmit antenna. A weight calculator receives as input transmission channel impulse responses transferred into frequency domain by FFT sections, chip noise power estimated by a chip noise estimation section, and the correction coefficient βmobtained by the correction coefficient calculator. The weight calculator calculates filter weights according to the minimum mean square error (MMSE) criterion.

REFERENCES:
patent: 7006041 (2006-02-01), Fujii et al.
patent: 7359466 (2008-04-01), Huang et al.
patent: 7386057 (2008-06-01), Ito et al.
Xu Zhu, et al. “Novel Frequency-Domain Equalization Architectures for a Single-Carrier Wireless MIMO System,” IEEE VTC2002-Fall, pp. 874-878, Sep. 2002.

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