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2288 Mbps chip rate, an IS-95 forward link pilot channel and 16 orthogonal channels with 0 to 63 selectable Walsh codes.
This is a great improvement compared to the system applying Walsh Codes, which need to cancel N-1 users in the worst case.
This relationship holds for both the Hadamard numbering of the Walsh codes in IS-95 and CDMA2000 as well as the bit-reversed Hadamard code numbering used in wideband CDMA (W-CDMA).
OVSF codes are orthogonal codes similar to the Walsh codes used in 2G CDMA (IS-95) BTS.
Spreading function using Walsh codes and Quasi Orthogonal