Report about BSS

In 2G the OML which is responsible of bringing alarms only connected to the BSC connected to the transcoder the transcoder and BSC may in the same place or in separated places, and there is cards  in BSC (PGW  for traffic issues and NWI for switching issues ).the BSC also connected to the sites by microwave ,and the mobile station when it need to communicate it  communicate with the nearest site to it, the BSC also connected to MGW and the MGW connected to the MSS .

     In 3G the OML connected to each site so if only one site down the heartbeat failure will be appeared in the screen of the computer of the terminal , instead of BSC in 2G there is  RNC and RBS instead of BTS ,and each RBS connected to the juniper and the juniper connected to RNC  by Ethernet link  for OML and one or two optical fiber cables for call and packets, and the juniper from the other hand also connected to OSR and OSS ,OSS responsible for remotely login to the RBS (any RBS ) it’s more difficult in 2G than 3G, and 2G and 3G has a different frequencies.