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Why is the uplink frequency lower than the downlink frequency in CDMA?

WHY IS THE UPLINK FREQUENCY LOWER THAN THE DOWNLINK FREQUENCY IN CDMA? IS THERE ANY OTHER REASON EXCEPT THE POWER TRANSMITTING CAPABILITIES OF MOBILE SET AND THE BASE STATION?

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Question ajoutée par Mohammed Mohammed ahmed Alrabahi Alrabahi , noc engineer , Y-GSM Company for Telecoming
Date de publication: 2014/01/16
Mohannad Abdul Majeed
par Mohannad Abdul Majeed , المدير العام General Manager , إبداع للتطوير الهندسي EBDA Engineering & Development Co.

Because higher frequency increases antenna efficiency which allows using small volume antennas in basestations.

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