发明名称 |
FOERFARANDE OCH ANORDNING FOER IDENTIFIERING AV EN OEVERVAKNINGSSIGNAL PAO BASSTATIONEN I ETT RADIOTELEFONSYSTEM. |
摘要 |
A method and an apparatus for identification of a monitoring signal at a base station in a radio telephone system, in which a number of monitoring signals having different frequencies are used for monitoring the quality of radio links between the base station and mobile stations. The apparatus includes a multipath-type bandpass filter having an adjustable bandwidth for filtering the monitoring signal, the filter being arranged to be adapted to a desired monitoring signal frequency and the bandwidth of the filter being arranged to be narrowed in a steplike manner during the filtration period. An indicator is provided for identifying the monitoring signal on the basis of the level of the bandpass-filtered signal. |
申请公布号 |
FI900619(A0) |
申请公布日期 |
1990.02.08 |
申请号 |
FI19900000619 |
申请日期 |
1990.02.08 |
申请人 |
TELENOKIA OY |
发明人 |
KORHONEN, JUKKA;HUTTUNEN, PERTTI |
分类号 |
H04B17/00;H04W88/08;(IPC1-7):H04B/ |
主分类号 |
H04B17/00 |
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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