Bit swapping for different interleaving depths

Details Bit swapping for different interleaving depths Bit swapping for different interleaving depths

2005-07-19

2005-07-19

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from interleaved format

C341S063000, C341S051000

Reexamination Certificate

active

06919829

ABSTRACT:
The invention relates to a method, a system and a computer program product for bit swapping, wherein periodically I successive bits of a data packet that comprises K bits are mapped onto interleaved bit positions in I different bursts, respectively, according to a predefined interleaving scheme and a selected interleaving depth I, comprising the step of swapping the value of at least one bit that is associated with a respective first bit position m in the data packet with the value of a bit that is associated with a respective second bit position n in the data packet, wherein the respective second bit position n is selected such that n>m holds and that the difference n−m is divisible by I.

REFERENCES:
patent: 6259744 (2001-07-01), Lee et al.
patent: 6629287 (2003-09-01), Brink
patent: 2002/0186784 (2002-12-01), Kim et al.
patent: 1265413 (2002-12-01), None
patent: WO 00/74296 (2000-12-01), None
3GPP TS 45.003 V5.6.0 (2202-06), 3rd Generation, Partnership Project; Technical Specification Group GSM/EDGE, not date given.
Radio Access Network; Channel coding (Release 5), no date given.
3GPP TS 45.004 V5.1.0 (Jun. 2002), 3rd Generation Partnership Project; Technical Specification Group.
GSM/EDGE Radio Access Network; Modulation (Release 4), no date.
3GPP TR 45.902 V6.0.0 (Apr. 2003), 3rd Generation Partnership Project; Technical Specification Group GSM/EDGE.
Radio Access Network; Flexible Layer One; (Release 6), no date.

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