Zhejiang, China, May 16th, 2013]: Huawei, a leading global information and communications technology (ICT) solutions provider, and China Mobile (CMCC) recently successfully completed the world's first Flash CSFB to GSM field test on a live LTE TDD network. The successful completion indicates the commercial readiness of Huawei's Flash CSFB solution.
CSFB as a technology defined in 3GPP Release 8 employs circuit-switched (CS) networks to provide voice services for LTE subscribers. Compared with traditional CSFB, Huawei's Flash CSFB solution requires less time to complete end-to-end call setups to ensure a better user experience, and is capable of handovers to GSM and UMTS.
China Mobile operates the world's largest GSM network and has the world's largest mobile subscriber base. Huawei's Flash CSFB to GSM solution will help China Mobile maximize its returns from GSM investments, reduce voice service investments during the initial LTE network deployment phase, and lay a solid foundation for a smooth evolution towards voice over LTE (VoLTE).
Huawei's Flash CSFB to GSM solution dramatically reduces call setup times and implements seamless and fast handovers between LTE and GSM networks. With Huawei Flash CSFB to GSM solution, subscribers are able to switch to GSM for voice services while accessing web services much faster using LTE. Huawei's Flash CSFB solution can also be deployed for both LTE FDD and LTE TDD networks.
Huawei provided all GSM, LTE, CS, and EPC equipment used in the successful field test. As of 2013 Q1, Huawei's CSFB solutions (including Flash CSFB and other 3GPP Release 8-related CSFB solutions) have been deployed in more than 40 commercial and trial sites worldwide, including operators in Europe, Asia, the Middle East, and the Americas.