Radio frequency transmitting device of mobile radio communication base station system in code division multiple access system
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United States of America Patent
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Jun 6, 2006
Grant Date -
N/A
app pub date -
Sep 8, 2000
filing date -
Sep 13, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is an RF transmitting device of a mobile radio communication base station system in a CDMA system capable of digital-modulating baseband signals which are converted into band spread signals by using the same path which three frequency assignment frequency signals have for an RF in a multi-carrier mobile radio communication system supporting three frequency assignment, digital-coupling the modulated signals, and up-converting the digital-coupled signal into an IF signal and an RF signal in a sequential order, thereby transmitting the up-converted signal.
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