Title:
APPARATUS FOR CORRECTING DATA ERROR USING CHANNEL STATE INFORMATION
Document Type and Number:
Japanese Patent JP2003249861
Kind Code:
A
Abstract:
To provide an apparatus for correcting data errors which is improved in decoding performance to original signals.
A soft decision block for adding a weighted value relating to a channel state information to I and Q symbols, on which soft decision is made, conducts soft decision of the I and Q symbols and adds the weighted value of the channel state information to the I and Q symbols. A bit interleaver interleaves the data bit by bits corresponding to the I and Q symbols, to which soft decision is made so that the signal processing load on the bit interleaver conducting interleaving is reduced. Thus, the decoding performance of a trellis decoder correcting data errors and decoding the data to the original signals is improved.
Inventors:
CHANG YONG-DEOK
Application Number:
JP2003021001A
Publication Date:
September 05, 2003
Filing Date:
January 29, 2003
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD
International Classes:
H03M13/45; H03M13/25; H03M13/27; H03M13/29; H03M13/41; H04J11/00; H04L1/00; H04L27/00; H04N7/015; (IPC1-7): H03M13/45; H03M13/25; H03M13/27; H03M13/29; H04J11/00; H04L1/00; H04L27/00
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)