Cryptography – Particular algorithmic function encoding
Reexamination Certificate
2007-01-02
2007-01-02
Zand, Kambiz (Department: 2134)
Cryptography
Particular algorithmic function encoding
C380S043000, C713S162000
Reexamination Certificate
active
10328575
ABSTRACT:
The present invention provides embodiments for producing a user equipment identification scrambling sequence (UEIDSS). The produced sequences for different user identification codes have a high separation. A base station uses the UEIDSS to scramble a high speed shared control channel (HS-SSCH) and a user equipment (UE) uses the UEIDSS to descramble the HS-SSCH. The embodiments utilize various blocks for producing the codes. These blocks include Reed-Muller encoding, concatenation, rate matching, segmentation, convolutional encoding, tail bit discarding, zero padding, repeating, CRC calculation, quadratic residue coding, parity-check bit, shortening, puncturing and BCH encoding blocks.
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Siemens, “Simplified UE-ID Masking of HS-SCCH, Part 1,” Discussion and Decision, TSG-RAN Working Group 1 #27, Oulu, Finland, Jul. 2-5, 2002.
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Bolourchi Nader
Dick Stephen G.
Shin Sung-Hyuk
InterDigital Technology Corporation
Szymanski Thomas M.
Volpe and Koenig PC
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