Reducing search time using known scrambling code offsets

Details Reducing search time using known scrambling code offsets Reducing search time using known scrambling code offsets

2008-05-06

2008-05-06

Fan, Chieh M. (Department: 2611)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C375S150000

Reexamination Certificate

active

07369534

ABSTRACT:
Techniques for reducing search time using known scrambling code offsets are disclosed. In one embodiment, a plurality of search results is generated by correlating a received signal with a synchronization sequence. The plurality of search results is reduced by removing any results whose offset is within a threshold of a stored offset. In another embodiment, stored offsets correspond to previously identified cells. In yet another embodiment, a searcher further correlates the received signal with a scrambling code over a search window to produce a list search result. The scrambling code may be associated with one of the cells in a neighbor list. Various other embodiments are also presented. Benefits include efficient searching which allows for improved base station selection and therefore improved performance and system capacity.

REFERENCES:
patent: 5574996 (1996-11-01), Raith
patent: 6526039 (2003-02-01), Dahlman et al.
patent: 6697622 (2004-02-01), Ishikawa et al.
patent: 6711219 (2004-03-01), Thomas et al.
patent: 2002/0015399 (2002-02-01), Hirade
patent: 2002/0034944 (2002-03-01), Tanno et al.
patent: 2002/0177458 (2002-11-01), Hokao
patent: 2003/0076801 (2003-04-01), Aikawa et al.
patent: 2003/0086512 (2003-05-01), Rick et al.
patent: 2003/0202541 (2003-10-01), Lim et al.
patent: 2004/0100935 (2004-05-01), Papageorgiou et al.
patent: 2004/0116110 (2004-06-01), Amerga et al.
patent: 2004/0161020 (2004-08-01), Mathew et al.
patent: 2004/0196893 (2004-10-01), Oh et al.
patent: 2004/0252656 (2004-12-01), Shiu et al.
patent: 2005/0025087 (2005-02-01), Tamura

Affiliated with

Also associated with

Rating

Reducing search time using known scrambling code offsets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reducing search time using known scrambling code offsets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reducing search time using known scrambling code offsets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2811745