Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2003-10-20
2009-02-03
Rao, Seema S (Department: 2616)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C370S509000
Reexamination Certificate
active
07486656
ABSTRACT:
The present invention is related to a method and apparatus for a mobile unit to synchronize with the base station in WCDMA system. First, the mobile unit receives the signal transmitted from the base station. The signal includes a primary synchronization channel, a secondary synchronization channel and a common pilot channel. Then, the mobile unit obtains a sample signal and selects a part of the sample signal to be a first period signal and a second period signal. The mobile unit further synchronizes with the base station according to the first period signal, primary synchronization channel, second period signal, secondary synchronization channel and the common pilot channel.
REFERENCES:
patent: 6480558 (2002-11-01), Ottosson et al.
patent: 6539032 (2003-03-01), Rudolf
patent: 6665277 (2003-12-01), Sriram
patent: 6741578 (2004-05-01), Moon et al.
Article entitled “Cell Search in W-CDMA” by Yi-Pin Eric Wang et al. published in the IEEE Journal On Selected Areas In Communication, vol. 18, No. 8, Aug. 2000, pp. 1470-1482.
Andrews Leon
Qisda Corporation
Rao Seema S
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