Title:
METHOD FOR ALLOCATING FREQUENCY DOMAIN SPREAD CODE IN BASE STATION OF MC-CDMA COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2007/066871
Kind Code:
A3
Abstract:
The present invention relates to a method for allocating a frequency domain spread code in a base station of a multi-carrier code division multiple access (MC-CDMA) communication system. A code allocation priority is established based on interference between previously allocated spread codes and a newly allocated spread code so as to minimize the interference caused by channel fading or a synchronization error according to a transmitting or receiving timing offset when a scheduler of the base station in the MC-CDMA communication system allocates a subcarrier group to the plurality of user terminals or channels, and the spread code is allocated to the plurality of user terminals or channels according to the established priority, by the scheduler of the base station.
Inventors:
LIM HYUNG-SOO (KR)
LEE YU-RO (KR)
KWON DONG-SEUNG (KR)
LEE YU-RO (KR)
KWON DONG-SEUNG (KR)
Application Number:
PCT/KR2006/002924
Publication Date:
November 11, 2010
Filing Date:
July 25, 2006
Export Citation:
Assignee:
KOREA ELECTRONICS TELECOMM (KR)
LIM HYUNG-SOO (KR)
LEE YU-RO (KR)
KWON DONG-SEUNG (KR)
LIM HYUNG-SOO (KR)
LEE YU-RO (KR)
KWON DONG-SEUNG (KR)
International Classes:
H04L27/26; H04J13/18; H04L5/02; H04J13/00
Domestic Patent References:
| WO2004109953A1 | 2004-12-16 |
Foreign References:
| US20040081227A1 | 2004-04-29 | |||
| GB2411555A | 2005-08-31 |
Other References:
HATHI N. ET AL.: "ANALYSIS OF THE INFLUENCE OF WALSH- HADAMARD CODE ALLOCATION STRATEGIES ON THE PERFORMANCE OF MULTI-CARRIER CDMA SYSTEMS IN THE PRESENCE OF HPA NON-LINEARITIES", PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2002, XP010611475
Attorney, Agent or Firm:
YOU ME PATENT & LAW FIRM (649-10Yeksam-dong, Kangnam-ku, Seoul 135-080, KR)
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