Research on Key Problems of A-Interface over IP

With the current trend of all IP based mobile network, transformation of traditional TDM-based 2G BSS is the last problem to be solved.. International standards have just completed the definition of A-interface over IP, and Industry achievement has not been totally completed. In this paper, the key problems and the industrial progress of A-interface over IP deployment are introduced, and the recommended solutions about deployment strategy A-interface over IP are proposed.