Telecommunications – Carrier wave repeater or relay system
Reexamination Certificate
2005-12-26
2011-11-22
Trinh, Tan (Department: 2618)
Telecommunications
Carrier wave repeater or relay system
C455S009000, C455S011100, C455S013100, C455S502000, C370S315000, C370S332000
Reexamination Certificate
active
08064822
ABSTRACT:
Provided is a link synchronization method for a radio frequency repeater that can perform link route switching at an accurate time point by measuring reception signal power at a predetermined period for a predetermined time duration, accumulating and comparing them with a reference level, and detecting a link termination time point. The method includes: a) setting up an initial link route; b) measuring received signal power in the initial link route; c) accumulating the reception signal power received for a predetermined time at a predetermined period, when the reception signal power is detected; d) setting up a reference level for link switching based on the accumulated reception signal power; e) detecting a link termination time point by finding an edge in a waveform of the accumulated reception signal power based on the reference level; and f) switching the current link route based on the detected link termination time point.
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Kim Jeong-Hwi
Lee Seong-Choon
Ryoo Kyoo-Tae
Yang Hee-jin
Yi Sang-ho
KT Corporation
Lexyoume IP Group, PLLC.
Solid Technologies, Inc.
Trinh Tan
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