Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reissue Patent
2006-05-24
2011-10-11
Jagannathan, Melanie (Department: 2468)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S342000
Reissue Patent
active
RE042827
ABSTRACT:
A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.
REFERENCES:
patent: 5179571 (1993-01-01), Schilling
patent: 5345467 (1994-09-01), Lomp et al.
patent: 5528599 (1996-06-01), Rodriguez et al.
patent: 5930366 (1999-07-01), Jamal et al.
patent: 6144653 (2000-11-01), Persson et al.
patent: 6233466 (2001-05-01), Wong et al.
patent: 6246673 (2001-06-01), Tiedemann et al.
patent: 6363060 (2002-03-01), Sarkar
patent: 6480558 (2002-11-01), Ottosson et al.
patent: 6483826 (2002-11-01), Åkerberg
patent: 6741578 (2004-05-01), Moon et al.
patent: 6804311 (2004-10-01), Dabak et al.
patent: 2001/0021199 (2001-09-01), Lee et al.
patent: 0 852 430 (1998-07-01), None
patent: 3-14372 (1991-01-01), None
patent: 6-91547 (1994-11-01), None
patent: 11-17652 (1999-01-01), None
patent: 2000-324020 (2000-11-01), None
patent: WO 95/12931 (1995-05-01), None
patent: WO 99/12273 (1999-03-01), None
patent: WO 99/12282 (1999-03-01), None
patent: WO 99/12295 (1999-03-01), None
patent: WO 00/67399 (2000-11-01), None
Nystrom et al., Comparison of Cell Search Methods for Asynchronous Wideband CDMA Cellular System, Oct. 1998, IEEE 1998 International Conference on Universal Personal Communications, vol. 2, pp. 783-784.
Japanese Office Action dated Nov. 12, 2002, issued in a counterpart application, namely Appln. No. 2000-616143.
Ahn Jae-Min
Kang Hee-Won
Lee Hyeon-Woo
Lim Chae-Man
Maeng Seung-Joo
Jagannathan Melanie
Samsung Electronics Co,. Ltd
The Farrell Law Firm P.C.
LandOfFree
Apparatus and method for synchronizing channels in a WCDMA... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for synchronizing channels in a WCDMA..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for synchronizing channels in a WCDMA... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4256775