Huawei completes LTE-to-GSM CSFB test
Huawei has completed a LTE to GSM CSFB (Circuit Switched Fallback) test to reduce voice setup delays from LTE to GSM network by two seconds, improve handover success rates and provide end users with voice experience on GSM/LTE networks.
Different than the redirecting accessing process found in the 3GPP Release 8 and Release 9 standards, Huawei adopted CCO (Cell Change Order) with NACC (Network Assisted Cell Change) technology for its CSFB voice optimization test to enables devices to skip mobile searches when switching from LTE to GSM networks. In case of failure, the devices directly search for signals in LTE idling process without accessing the mobile again. Huawei’s CSFB voice optimization test speeds up a GSM/LTE interoperable mobility progress and also helps operators to accelerate the evolution of existing GSM to LTE networks and promotes the development of whole mobile broadband industry chain.