Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2008-06-18
2011-12-20
Pezzlo, John (Department: 2465)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S203000, C375S341000
Reexamination Certificate
active
08081577
ABSTRACT:
The present invention relates to a method of calculating a soft value and a method of detecting a transmission signal. The present invention estimates a channel on the basis of a received signal and rearranges a plurality of data streams. Further, a plurality of substitute vectors are selected from the rearranged data streams and a metric corresponding to each of the substitute vector is calculated. Further, a threshold value is calculated from a metric calculated for each of the substitute vectors and a soft value of each bit of a transmission signal is calculated from the metric and threshold value corresponding to each of the substitute vectors.
REFERENCES:
patent: 2006/0115026 (2006-06-01), MacLeod
patent: 2007/0016414 (2007-01-01), Mehrotra et al.
patent: 2007/0086541 (2007-04-01), Moon et al.
patent: 10-2007-0052037 (2007-05-01), None
patent: 10-2008-0050239 (2008-06-01), None
Kawai et al., Likelihood Function for QRM-MLD Suitable for Soft-Decision Turbo Decoding and Its Performance for OFCDM MIMO Multiplexing in Multipath Fading Channel, Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications, Jan. 2005, pp. 47-57, IEICE Trans. Commun., vol. E88, No. 1.
Bahng Seung Jae
Choi Jung Pil
Park Youn-Ok
Electronics and Telecommunications Research Institute
Jefferson IP Law, LLP
Pezzlo John
Samsung Electronics Co,. Ltd.
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