Method for CDMA soft handoff via IP multicasting

Details Method for CDMA soft handoff via IP multicasting Method for CDMA soft handoff via IP multicasting

2006-01-31

2006-01-31

Ngo, Ricky (Department: 2663)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S474000, C455S436000, C455S442000

Reexamination Certificate

active

06993000

ABSTRACT:
Method for selecting IP data packet segments in an all-IP architecture that supports CDMA soft handoff via IP multicasting, wherein both the mobile terminal and IP backbone network receive a plurality of identical, redundant CDMA IP data packets. A best IP data packet is created by first, receiving a plurality of IP data packets from a plurality of corresponding base stations, second, separating those IP data packets into data packet segments comprising separate time intervals, and third, employing different metric standards to determine which of those data packet segments received for each time interval is the best data packet segment. The best data packet segments are determined by creating a quality matrix that represents the quality of each data packet segment for each time interval. A quality function is then computed for each time interval to determine which data segment is the best for that particular time interval.

REFERENCES:
patent: 5854981 (1998-12-01), Wallstedt et al.
patent: 6230013 (2001-05-01), Wallentin et al.
patent: 6252861 (2001-06-01), Bernstein et al.
patent: 6252862 (2001-06-01), Sauer et al.
patent: 6253085 (2001-06-01), Bender
patent: 6285668 (2001-09-01), Kang
patent: 6341222 (2002-01-01), Neumiller et al.
patent: 6463285 (2002-10-01), Davies et al.
patent: 6760587 (2004-07-01), Holtzman et al.
patent: 2001/0026541 (2001-10-01), You et al.
patent: 2002/0093931 (2002-07-01), Dalal
patent: 2002/0167921 (2002-11-01), Vakil et al.
patent: 2002/0191561 (2002-12-01), Chen et al.
U.S. Appl. No. 09/775,864, filed Feb. 2, 2001, D. Famolari et al.
U.S. Appl. No. 09/883,569, filed Jun. 18, 2001, D. Famolari et al.

Affiliated with

Also associated with

Rating

Method for CDMA soft handoff via IP multicasting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for CDMA soft handoff via IP multicasting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for CDMA soft handoff via IP multicasting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3578019