An improved sequence design for code-division multiple access (CDMA) communications generating complex four-phase pseudo-random code sequences which may be directly mapped to a quadrature phase shift keying (QPSK) signal constellation.

 
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< Large area wireless CDMA system and method

< Methods and apparatus for spreading and despreading information signals in code division multiple access communications systems

> Correlator co-processor for CDMA RAKE receiver operations

> Communications system and method for multi-carrier orthogonal coding

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