How to detect UMTS signal?
时间：04-05
整理：3721RD
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Hi,
First, sorry for my english:)
Question is how can I detect UMTS signal? I design GSM/UMTS/LTE amplifier for car. The idea is that if I am in UMTS signal range, amplifier must detect this signal and switch to UMTS mode amplification. For this moment I'a interesting only in UMTS.
I found something like this: http://www.google.com/url?sa=t&rct=j...EOKZuLCdyluPGw, but this is not an option.
Does anyone have some ideas? Regards.
First, sorry for my english:)
Question is how can I detect UMTS signal? I design GSM/UMTS/LTE amplifier for car. The idea is that if I am in UMTS signal range, amplifier must detect this signal and switch to UMTS mode amplification. For this moment I'a interesting only in UMTS.
I found something like this: http://www.google.com/url?sa=t&rct=j...EOKZuLCdyluPGw, but this is not an option.
Does anyone have some ideas? Regards.
Something with LT5515 IC maybe.
I think modulation types UMTS/GSM/LTE are detected by Baseband Processor.RF circuit can detect the signal level and frequency only...
For example this: http://www.broadcom.com/products/Cel...essors/BCM2141 ?