Circuit Switch Fallback Improvement and the Smarter Way for Implementation

Abstract

Operators, all over the world, search for the latest technologies and facilities to attract more customers. The LTE is the newest mobile technology, dedicated mainly for high-speed data transfer, and having all the chances to replace the existing legacy networks if it can provide voice services similar or even better from the existing. The delay on providing viable handsets supporting Single Radio Voice Call Continuity (SRVCC) solution forced many operators to use intermediate voice solutions, such as Circuit Switch Fallback (CSFB), not really elegant, in order to announce the support of voice services on their network, and overlook the fact of affecting badly their user's quality experience. We have proposed a smarter way for CSFB implementation, to clear all the confusions facing operators having still LTE network voiceless, and hesitating between the SRVCC solution, assumed to have viable handset on the coming months, or to the actual CSFB deployment. The first selection might give the precession in the media battle to other competitors, and the second selection might drain the cost resources reserved for voice over LTE project and consume more time depending on the width of the network. We have suggested also interesting recommendations to reduce the call setup time and improve the user quality experience, to overcome the main CSFB solution drawback.