Uplink and downlink regulations
时间：04-05
整理：3721RD
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Hi everybody,
I have to do some research on GSM Relay. And now i am in the part of standards and regulations.
My questions is : Are there any rules(regulations) between the uplink transmission (Cellular to BTS) and the downlink transmission (BTS to Cellular) ? (Like limits of power transmission, time delay etc..). In fact, in some active repeaters the gain of the Uplink is ofen different then the Downlink (for some reasons obviously) . I know that some regulations exist but i didn't find any of them on the web.
The question concerns all the GSM UMTS frequencies.
Can you help me pleasee! It's urgent for my next presentation.
Thank you!
I have to do some research on GSM Relay. And now i am in the part of standards and regulations.
My questions is : Are there any rules(regulations) between the uplink transmission (Cellular to BTS) and the downlink transmission (BTS to Cellular) ? (Like limits of power transmission, time delay etc..). In fact, in some active repeaters the gain of the Uplink is ofen different then the Downlink (for some reasons obviously) . I know that some regulations exist but i didn't find any of them on the web.
The question concerns all the GSM UMTS frequencies.
Can you help me pleasee! It's urgent for my next presentation.
Thank you!
Look at http://pda.etsi.org/pda/queryform.asp