Title:
WIRELESS COMMUNICATION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2016/039236
Kind Code:
A1
Abstract:
The present invention carries out SISO decoding of a reception signal having a scrambled symbol arrangement using a process having reduced complexity. Coordinates are generated for a reference point obtained not through scrambling and mapping of a symbol reference point position but through scrambling and mapping of a symbol number. This reference point simulates transmission-side scrambling and is generated for each symbol number by a first mapping means. Because the binary expression of a corresponding original signal number is retained, a bit likelihood calculation means can easily calculate a bit likelihood based on the distance between the reference point and a reception signal. The calculated bit likelihood is thereafter deinterleaved and subjected to SISO error-correcting decoding. The thus obtained bit likelihood is then reinterleaved and used to calculate a symbol probability. Soft symbols are generated through the multiplication of all the calculated symbol probabilities by corresponding reference points output by a second mapping means similar to the first mapping means.
Inventors:
ITO KEI (JP)
Application Number:
PCT/JP2015/074958
Publication Date:
March 17, 2016
Filing Date:
September 02, 2015
Export Citation:
Assignee:
HITACHI INT ELECTRIC INC (JP)
International Classes:
H03M13/45; H03M13/25; H04L27/34
Domestic Patent References:
| WO2002005467A1 | 2002-01-17 |
Foreign References:
| JP2013042444A | 2013-02-28 | |||
| JP2004364046A | 2004-12-24 |
Other References:
See also references of EP 3193453A4
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