Derivation of optimal antenna weights during soft handover

Details Derivation of optimal antenna weights during soft handover Derivation of optimal antenna weights during soft handover

2007-11-16

2011-12-13

Tran, Cong (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S436000, C455S562100, C370S331000

Reexamination Certificate

active

08078177

ABSTRACT:
Wireless communication method and system for improving optimal antenna weight derivation in transmit diversity mode during soft handover. The method and system use scale factors that depend on the reliability of the feedback information (FBI) detection on the uplink. Depending on FBI detections for each link, the scale factors are then applied to the downlink channel response estimates. FBI detection performance may be based on downlink antenna verification, downlink transmit power control command “up/down” ratio, or both. Poor antenna verification or a high number of “power up” commands on the uplink may indicate unreliable FBI detection. By applying higher scale factors to downlink channel responses corresponding to reliable FBI detection better closed transmit diversity performance during soft handovers may be achieved. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

REFERENCES:
patent: 6842632 (2005-01-01), Raghothaman et al.
patent: 6879831 (2005-04-01), Hamabe
patent: 6892059 (2005-05-01), Kim et al.
patent: 7133682 (2006-11-01), Seki et al.
patent: 2009/0042571 (2009-02-01), Ishii et al.

Affiliated with

Also associated with

Rating

Derivation of optimal antenna weights during soft handover does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Derivation of optimal antenna weights during soft handover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Derivation of optimal antenna weights during soft handover will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4308349