发明名称 |
METHOD, APPARATUS AND SYSTEM FOR DETERMINING VOLTAGE STANDING WAVE RATIO IN DOWNLINK PERIOD OF RADIO COMMUNICATION |
摘要 |
The present invention discloses a method for determining a Voltage Standing Wave Ratio (VSWR) in downlink period of a radio communication, comprising: coupling a forward signal into a Transmitter Observation Receiver (TOR) via a Radio Frequency (RF) switch; feeding a reversed signal in a reversed path from a third port of a circulator into the TOR via the RF switch; making down conversion, filtering and converting the forward signal and the reversed signal from an analog signal into digital baseband signal respectively; measuring and storing power levels of the forward signal and the reversed signal in form of digital baseband; and calculating VSWR or Return Loss (RL) value from the stored power levels of the forward signal and the reversed signal. A corresponding apparatus and radio communication system are also provided. This provides an improved VSWR detection method with low complexity and low cost, etc. |
申请公布号 |
EP2702698(A1) |
申请公布日期 |
2014.03.05 |
申请号 |
EP20110864443 |
申请日期 |
2011.04.29 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
GAO, XIANG;LI, YAZHUO |
分类号 |
H04B7/00;G01R27/06;H04B17/10 |
主分类号 |
H04B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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