Huawei and Qualcomm Test CDMA to LTE Fallback in Commercial Devices

Huawei and Qualcomm Test CDMA to LTE Fallback in Commercial Devices

Huawei has announced the success of interoperability testing for CDMA 1x LTE Circuit Switched Fallback (CSFB) commercial device. The test was conducted in partnership with Qualcomm using Release 8 1x CSFB and Release 9 1xe CSFB technology.

An important component of CDMA to LTE evolution, CSFB enables data services to run on LTE networks with voice service fallback to Circuit Switched packets. In the initial stages of LTE network deployment, operators typically deploy LTE to cover data hotspot areas, since Voice over LTE (VoLTE) has not yet fully matured. With CSFB technology, subscribers are able to access LTE mobile broadband services while continuing to have CDMA 1x voice services.

Wu Hui, Huawei President for CDMA/LTE Wireless Networks, said: “This is an important achievement for the CDMA-LTE industry. With Huawei’s leading SingleRAN platform, Huawei enables synergy between CDMA and LTE. Our CDMA-LTE team is committed to increasing network capacities, helping operators protect their network investments and provide subscribers with high-quality voice services and ultra-broadband experiences.”

As of Q1 2012, Huawei says that it has won 145 EV-DO contracts, including 110 Data-Optimized Rev. A (DORA) contract, three EV-DO Rev. B contracts for commercial networks, and eight EV-DO Rev. B contracts for pre-commercial networks.