Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2007-10-30
2007-10-30
Yao, Kwang Bin (Department: 2616)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C370S342000
Reexamination Certificate
active
10669167
ABSTRACT:
Described herein is a method for parallel generating Walsh-Hadamard (WH) channelization codes and Orthogonal Variable Spreading Factor (OVSF) channelization codes, which are channelization codes formed by a plurality of strings of antipodal digits, each having a given length L and being identifiable by respective indices I formed by strings of binary digits, each having a given length N equal to the logarithm in base two of the length L of the channelization codes, the antipodal digits of the channelization codes assuming the values +1 and −1 and the binary digits of said indices I assuming the values 0 and 1. The method according to the invention enables determination of the antipodal digits of the channelization codes according to the binary digits of the corresponding indices I, implementing specific EXOR logic operations, by means of which there are first generated intermediate binary digits, which are then encoded with the antipodal digits of the channelization codes using an encoding criterion according to which the intermediate binary digits 0 and 1 can be encoded, respectively, with the antipodal digits −1 and +1 or else with the antipodal digits +1 and −1 according to the type of binary encoding chosen a priori for the antipodal digits themselves.
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Avellone Giuseppe
Galluzzo Agostino
Iacono Daniele Lo
Pappalardo Francesco
Aghera Sameer
de Guzman Dennis M.
Jorgenson Lisa K.
Seed IP Law Group PLLC
STMicroelectronics S.r.l.
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