Hi,
I understand that Iu-CS is the interface in UMTS which links the RNC (Radio Network Controller) with a 3G MSC (3G Mobile Switching Centre).
But, what is the expansion/meaning for 'Iu' in 'Iu-CS' ? I searched the internet, but i did not find relevant info about it. I find info that CS is for Circuit Switch. But not for 'Iu'. Any ideas ?
Thx in advans, Karthik Balaguru