Preamble sequencing for random access channel in a...

Details Preamble sequencing for random access channel in a... Preamble sequencing for random access channel in a...

2011-08-16

2011-08-16

Gelin, Jean (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S434000

Reexamination Certificate

active

08000305

ABSTRACT:
A system and method for initializing a system communication without previous reservations for random access channel (RACH) access includes a first step of defining at least one spread sequence derived from at least one constant amplitude zero autocorrelation sequence. A next step includes combining the spread sequence with a Walsh code to form an extended spread sequence. A next step includes using the extended spread sequence in a preamble for a RACH. A next step includes sending the preamble to a BTS for acquisition. A next step includes monitoring for a positive acquisition indicator from the BTS. A next step includes scheduling the sending of a RACH message. A next step includes sending the RACH message.

REFERENCES:
patent: 6567482 (2003-05-01), Popovic′
patent: 6804307 (2004-10-01), Popovic
patent: 6901104 (2005-05-01), Du et al.
patent: 6917602 (2005-07-01), Toskala et al.
patent: 6967942 (2005-11-01), Smolinske et al.
patent: 2001/0017881 (2001-08-01), Bhatoolaul et al.
patent: 2003/0031275 (2003-02-01), Min et al.
patent: 2003/0103476 (2003-06-01), Choi et al.
patent: 2004/0014452 (2004-01-01), Lim et al.
patent: 2004/0264550 (2004-12-01), Dabak
patent: 2005/0048920 (2005-03-01), Liu
patent: 2005/0084030 (2005-04-01), Zhou et al.
patent: 2005/0143118 (2005-06-01), Bernhardsson et al.
patent: 2005/0202818 (2005-09-01), Hondo et al.
patent: 2006/0050799 (2006-03-01), Hou et al.
patent: 2006/0126573 (2006-06-01), Dick et al.
patent: 2008/0253323 (2008-10-01), Fischer
patent: 1 198 076 (2002-04-01), None
patent: WO 2004-102979 (2004-11-01), None
Multi—Carrier—and—Spread—Spectrum—Systems, by Fazel K. and Kaiser S.
R1-051033 Further Topics on Uplink DFT-SOFDM for E-UTRA Agenda Item: 8.2, 3GPP TSG RAN WG1#42 bis, San Diego, USA, Oct. 10-14, 2005, pp. 1-24.
IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>, Ranging Improvement for 802.16e OFDMA PHY, Jul. 7, 2004, IEEE C802.16e-04/143rl, pp. 1-43.
3GPP TSG RAN WG1 Ad Hoc on LTE, San Diego, USA, Oct. 10-14, 2005, Link Comparison of Localized vs. Distributed Pilot and Localized vs. Distributed Data, R1-0511153, pp. 1-5.
3GPP TSG RAN WG1 Meeting #42bis, San Diego, USA<Oct. 10-14, 2005, R1-051058, RACH Preamble Design, pp. 1-7.
Fazel et al, “Multi-Carrier and Spread Spectrum Systems,” John Wiley & Sons, Ltd., ISBN 0-470-84899-5, entire document.
Blaine R. Copenheaver, “Corresponding Application PCT/US2007/060453—PCT International Search Report and Written Opinion,” WIPO, ISA/US, Commissioner for Patents, Alexandria, VA, USA, Oct. 3, 2007, 9 pages, most relevant pp. 4, 7-9.
Yoshiko Kuwahara, “Corresponding Application PCT/US2007/060453—PCT International Preliminary Report on Patentability,” The International Bureau of WIPO, Geneva, Switzerland, Jul. 31, 2008, 7 pages, most relevant pp. 2, 5-7.

Affiliated with

Also associated with

Rating

Preamble sequencing for random access channel in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preamble sequencing for random access channel in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preamble sequencing for random access channel in a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2631666