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Title:
METHODS AND PROCEDURES TO ALLOCATE UE DEDICATED SIGNATURES
Document Type and Number:
WIPO Patent Application WO/2008/114983
Kind Code:
A3
Abstract:
A mobile terminal random access procedure is provided for obtaining uplink time synchronization and access to a network by optimizing the allocation of cyclic shifted Zadoff-Chu sequences with Zero Correlation Zone (ZC-ZCZ) as part of dedicated signatures for contention-free uplink radio access channels (RACH).

Inventors:
VUJCIC DRAGAN (FR)
Application Number:
PCT/KR2008/001494
Publication Date:
September 16, 2010
Filing Date:
March 17, 2008
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
VUJCIC DRAGAN (FR)
International Classes:
H04L27/26; H04W74/08
Foreign References:
US20050053029A12005-03-10
EP0993211A12000-04-12
EP1635511A12006-03-15
Other References:
PANASONIC: "Random Access Preamble signatures usage", 3GPP TSG-RAN WG2, R2-070891, 12 February 2007 (2007-02-12), XP008143338, Retrieved from the Internet [retrieved on 20100623]
NOKIA: "Restricted sets of RACH preamble signatures for environments with high Doppler shifts", 3GPP TSG-RAN WG1, 15 January 2007 (2007-01-15), Retrieved from the Internet [retrieved on 20100623]
LGE: "RACH Sequence Extension Methods for Large Cell Deployment", GPP TSG-RAN WG1, R1-062306 [ONLINE], 28 August 2006 (2006-08-28), XP008143341, Retrieved from the Internet [retrieved on 20100623]
PANASONIC: "RACH Preamble performance evaluation with frequency offset for E-UTRA", GPP TSG-RAN WG1, R1-063181, 6 November 2006 (2006-11-06), XP008143342, Retrieved from the Internet [retrieved on 20100623]
LG ELECTRONICS: "Use of dedicated RACH signatures", 3GPP TSG-RAN WG2, R2-070687, 12 February 2007 (2007-02-12), XP008143344, Retrieved from the Internet [retrieved on 20100623]
PANASONIC ET AL.: "Zadoff-Chu sequence allocation on RACH for complexity reduction", 3GPP TSG-RAN WG 1, R1-070189, 15 January 2007 (2007-01-15), XP008143345, Retrieved from the Internet [retrieved on 20100623]
"IEEE Spread Spectrum Techniques and Applications, Ninth Annual International Symposium. New York: IEEE, 1 August 2006 (01.08.2006)", ISBN: 0-7803-9779-7, article POPOVIC, B.M. ET AL.: "Random Access Preambles for Evolved UTRA Cellular System", pages: 488 - 492, XP031047607
NOKIA ET AL.: "Non contention based HO", 3GPP TSG-RAN WG2, R2- 070455, 12 February 2007 (2007-02-12), XP008143346, Retrieved from the Internet [retrieved on 20100623]
LG ELECTRONICS INC.: "Random Access Preamble signatures allocation", 3GPP TSG-RAN WG1, R1-072215, 7 May 2007 (2007-05-07), XP008143347, Retrieved from the Internet [retrieved on 20100623]
Attorney, Agent or Firm:
KIM, Yong In et al. (7th Floor Hyundae Building,175-9, Jamsil-dong, Songpa-ku, Seoul 138-861, KR)
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