Method and apparatus for generating a permutation for...

Details Method and apparatus for generating a permutation for... Method and apparatus for generating a permutation for...

2011-07-05

2011-07-05

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Transmitters

C375S132000, C375S133000, C375S135000, C375S260000

Reexamination Certificate

active

07974362

ABSTRACT:
A method and apparatus for generating a permutation for reverse link hopping is provided, comprising initializing permutation constants, determining a value for p such that i<2pwherein i is a value of a first counter, initializing a second counter j to ‘0’, setting x to i+1 wherein x is index of elements of an array A, clocking a Pseudo-noise (PN) register n times to generate a pseudorandom number, setting x to p Least Significant Bits (LSB) of the pseudorandom number, incrementing j by 1, determining if j is equal to 3 or x is less than or equal to i, determining if x is greater than i, setting x equal to x−i, swapping the ithand xthelement in the array A, decrementing counter i by 1, and mapping a set of hop-ports to a set of sub-carriers based upon the generated hop-permutation.

REFERENCES:
patent: 6934388 (2005-08-01), Clark
patent: 2007/0160115 (2007-07-01), Palanki et al.

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