Title:
ZADOFF-CHU SEQUENCE ALLOCATION METHOD IN CELLULAR WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2008/053971
Kind Code:
A1
Abstract:
A Zadoff-Chu sequence (ZC sequence) allocation method is provided to enable the
prevention of, while the sequence length of a Zadoff-Chu sequence is kept long,
both performance deteriorations due to an influence of a frequency offset and
a partial correlation method. In this method, a ZC sequence with a sequence number
r or N-r to satisfy the following condition as a preamble of a RACH (Random Access
Channel) is allocated to a specific cell in a plurality of cells composing a cellular
wireless communication system: r≤N/L (where r is a sequence number of
the Zadoff-Chu sequence, N is a sequence length of the Zadoff-Chu sequence, and
L is a section length of a detecting window of the preamble).
Inventors:
IWAI TAKASHI
IMAMURA DAICHI
TAKATA TOMOFUMI
FUTAGI SADAKI
IMAMURA DAICHI
TAKATA TOMOFUMI
FUTAGI SADAKI
Application Number:
PCT/JP2007/071340
Publication Date:
May 08, 2008
Filing Date:
November 01, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
IWAI TAKASHI
IMAMURA DAICHI
TAKATA TOMOFUMI
FUTAGI SADAKI
IWAI TAKASHI
IMAMURA DAICHI
TAKATA TOMOFUMI
FUTAGI SADAKI
International Classes:
H04B1/707; H04J13/00; H04J13/18; H04J13/22
Other References:
PANASONIC: "RACH Preamble performance evaluation with frequency offset for E-UTRA", 3GPP TSG-RAN WG1 MEETING #47, vol. R1-063181, 1 November 2006 (2006-11-01), XP003022609, Retrieved from the Internet
PANASONIC, NTT DOCMO: "Random access burst design for E-UTRA", 3GPP TS-RAN WG1 MEETING #46, vol. R1-062175, 23 August 2006 (2006-08-23), pages 1 - 9, XP002422894
PANASONIC, NTT DOCOMO: "Limitation of RACH sequence allocation for high mobility cell", 3GPP TSG RAN WG1 MEETING #50BIS, vol. R1-074422, 2 October 2007 (2007-10-02), XP003022610, Retrieved from the Internet
PANASONIC, NTT DOCMO: "Random access burst design for E-UTRA", 3GPP TS-RAN WG1 MEETING #46, vol. R1-062175, 23 August 2006 (2006-08-23), pages 1 - 9, XP002422894
PANASONIC, NTT DOCOMO: "Limitation of RACH sequence allocation for high mobility cell", 3GPP TSG RAN WG1 MEETING #50BIS, vol. R1-074422, 2 October 2007 (2007-10-02), XP003022610, Retrieved from the Internet
Attorney, Agent or Firm:
WASHIDA, Kimihito (Shintoshicenter Bldg.24-1, Tsurumaki1-chom, Tama-shi Tokyo 34, JP)
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