Procedure for the determination of the length of a standard...

Details Procedure for the determination of the length of a standard... Procedure for the determination of the length of a standard...

2007-06-19

2007-06-19

Shah, Chirag G. (Department: 2616)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S335000, C370S441000, C370S203000

Reexamination Certificate

active

10424879

ABSTRACT:
Procedure for determining length (Lpreamble) of a standard code sequence (preamble) transmitted in a CDMA signal in a defined code channel having a different code class than the code class of the at least one code channel, in which before and/or after the standard code sequence, data are transmitted, includes: (a) determining a chip sequence of the CDMA signal corresponding to an assumed hypothetical length (Lhyp) of the standard code sequence; (b) generating a symbol-sequence by decoding the chip sequence; (c) determining an estimated value of the performance ({circumflex over (P)}hyp) of the symbol sequence; (d) determining whether the estimated value of the performance ({circumflex over (P)}hyp) of the symbol sequence of the assumed hypothetical length (Lhyp) of the standard code sequence understeps a predetermined threshold value; and (e) deciding that the standard code sequence is correct when ({circumflex over (P)}hyp) understeps the predetermined threshold value.

REFERENCES:
patent: 6289000 (2001-09-01), Yonge, III
patent: 6798736 (2004-09-01), Black et al.
patent: 6928066 (2005-08-01), Moon et al.
patent: 2005/0157692 (2005-07-01), Gerakoulis
patent: 2005/0163066 (2005-07-01), Gerakoulis
patent: 198 32 554 (2000-02-01), None
patent: 199 53 349 (2001-06-01), None

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