Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2006-08-08
2006-08-08
Ngo, Ricky Q. (Department: 2663)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C370S335000, C370S252000, C714S790000, C714S786000
Reexamination Certificate
active
07088700
ABSTRACT:
Disclosed is an apparatus for encoding TFCI bits in an asynchronous CDMA mobile communication system including a UE and a Node B for transmitting packet data to the UE. A TFCI bit generator creates the TFCI bits, the number of which is variable depending on an information bit ratio of the first channel to the second channel. A code length information generator generates code length information for setting a length of a codeword according to the information bit ratio. A Walsh code generator generates first to fifth basis Walsh codewords. A sequence generator generates an all-1sequence. A mask generator generates first to fourth basis masks. First to tenth multipliers multiply the TFCI bits by the first to fifth basis Walsh codewords, the all-1sequence and the first to fourth basis masks, respectively. An adder adds outputs of the first to tenth multipliers. A puncturer punctures a codeword output from the adder according to the code length information.
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Samsung Electronics Co., Ltd., “Text Proposal Regarding TFCI Coding for FDD”, TSG-RAN Working Group 1, Meeting #7, Hanover, Germany, Aug. 30-Sep. 3, 1999.
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3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Multiplexing and Channel Coding (FDD) (Release 1999).
Choi Sung-Ho
Kim Jae-Yoel
Lee Hyun-Woo
Yang Kyeong-Cheol
Dilworth & Barrese LLP
Ngo Nguyen
Ngo Ricky Q.
Samsung Electronics Co,. Ltd.
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