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Registered RRADIO FREQUENCY CALIBRATION APPARATUS AND METHOD FOR MULTI-ANTENNA MOBILE COMMUNICATION SYSTEM
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RRADIO FREQUENCY CALIBRATION APPARATUS AND METHOD FOR MULTI-ANTENNA MOBILE COMMUNICATION SYSTEM
- Inventors
- Kim Joon Hyung, Kwon Heon Kook, Kwangchun Lee, Jung Jaeho
- Application No.
- 12443689 (2007.09.21)
- Publication No.
- 20100056083 (2010.03.04)
- Registration No.
- 8140020 (2012.03.20)
- Country
- UNITED STATES
- Project Code
- 06MM1400, Research & Development of Radio Transmission Technology for 3G evolution, Bang Seung Chan
- Abstract
- There is provided to an RF calibration apparatus and method for a multi-antenna mobile communication system, which calibrates a phase error and gain error of an RF path by calculating the minimum value of a sum of an initialized reference signal and a comparison signal by a simple operation and controlling the phase value of a phase converter and the gain of a variable amplifier on the RF path, in calibrating the RF path of a multi-antenna mobile communication system of a TDD (Time Division Duplexing) type or FDD (Frequency Division Duplexing) type.
- KSP Keywords
- Communication system, Frequency calibration, Frequency division, Reference signal, Time division duplexing(TDD), frequency division duplexing(FDD), mobile communication, mobile communication system, multi-antenna, phase error, time division