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Reply To: Uplink/Downlink Frequencies in GSM/CDMA


Dear Shriram,
As you know in GSM the UL is limited since the MS tx-power (UL) is small as compared to the BTS tx-power (DL) and because the attenuation increases as the frequency increases, for the above mentioned reasons the UL is assigned to the lower frequency band while the DL for the higher one.