CSFB终端接入非CSFB 4G网络解决方案

Solution of CSFB UE accessing no-CSFB 4G network

针对CSFB 4G终端无法自动接入非CSFB 4G网络问题,测试定位了问题产生的原因为3GPP协议限制,然后提出了协议和终端改进建议,使CSFB 4G终端能够自动接入非CSFB 4G网络,同时能够至少驻留在一个合法网络上,改善了用户体验。

Focusing on the CSFB 4G UE couldn＇t access no-CSFB 4G network automatically, some tests and analysis had been done and located the root cause of the problem by 3GPP specification. Some solutions about UE and 3GPP specification were presented that maked CSFB 4G UE access no-CSFB 4G network automatically and stay in a legalized network, giving users good experience.