Device enabling different spreading factors while preserving...

Details Device enabling different spreading factors while preserving... Device enabling different spreading factors while preserving...

2005-03-15

2005-03-15

Pezzlo, John (Department: 2662)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S208000, C375S141000

Reexamination Certificate

active

06868077

ABSTRACT:
A device which enables different spreading factors while preserving a comnmon scrambling code, in particular for transmission in a code division multiple access cellular mobile radio system. The device including a grouper for grouping the various data symbols of a kth incoming sequence (k=1, . . . , K) into different blocks of QMAX/QKsymbols, and a spreader for spreading K incoming sequences with K respective spreading codes of respective length Qk(k=1, . . . , K) which is a sub-multiple of a maximum length QMAX, wherein the spreader spreads the blocks from the kth incoming sequence (k=1, . . . , K) with the corresponding code of length Qkto obtain a spread sequence including different spread blocks of length QMAX. The device further includes a scrambler for scrambling each of the K spread sequences obtained in this way using a scrambling code of length QMAX.

REFERENCES:
patent: 5077753 (1991-12-01), Grau et al.
patent: 5550809 (1996-08-01), Bottomley et al.
patent: 5771288 (1998-06-01), Dent et al.
patent: 6009091 (1999-12-01), Stewart et al.
patent: 6185199 (2001-02-01), Zehavi
patent: 6222875 (2001-04-01), Dahlman et al.
patent: 6393047 (2002-05-01), Popovic
patent: 6424618 (2002-07-01), Uesugi et al.
patent: 6504830 (2003-01-01), Ostberg et al.
patent: 6643275 (2003-11-01), Gustafsson et al.
patent: 10164009 (1998-06-01), None
patent: WO 9503652 (1995-02-01), None
patent: WO 9605668 (1996-02-01), None
patent: WO 9605668 (1996-02-01), None
Specifications of Air-Interface for 3G Mobile System, Association of Radio Industries and Businesses (ARIB), vol. 3, version 0.5, issued Dec. 18, 1997 (revision—Jul. 21, 1998), pp. 35-45.

Affiliated with

Also associated with

Rating

Device enabling different spreading factors while preserving... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device enabling different spreading factors while preserving..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device enabling different spreading factors while preserving... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3430306