Method and apparatus for generating and distributing an internal clock for radio network controller
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United States of America Patent
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Nov 3, 2009
Grant Date -
Jul 7, 2005
app pub date -
Nov 3, 2004
filing date -
Nov 4, 2003
priority date (Note) -
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Abstract
A method for generating an internal clock in a radio network controller and a relevant transmission processing board. The transmission processing board comprises; a clock signal selector for extracting a clock signal from a synchronous/asynchronous line connected with a core network when said transmission processing board functions as a master transmission processing board, or for obtaining a clock signal from a clock bus of a sub-rack in which said transmission processing board is located when said transmission processing board functions as a slave transmission processing board; a phase-locked loop for generating a reference transmission clock based on the clock signal extracted or obtained by said clock signal selector; and a clock driver for transmitting the generated reference transmission clock to the clock bus of the sub-rackin which said transmission processing board is located when said transmission processing board functions as a master transmission processing board.
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