一种LTE回落GSM CSFB语音时延优化方案  

Research on A Voice Delay Optimization Scheme on CSFB to GSM in LTE Network

作　　者：唐琳钧[1] 钟声[1] Tang Linjun Zhong Sheng(China Information Technology Designing ＆ Consulting Institute Co., Ltd., Chengdu 610042, China)

机构地区：[1]中讯邮电咨询设计院有限公司,四川成都610042

出　　处：《邮电设计技术》2017年第1期54-57,共4页Designing Techniques of Posts and Telecommunications

摘　　要：围绕如何改善目前农村场景中WCDMA覆盖较差区域的LTE用户语音业务接入时延较大的问题,提出一种将MME TAC映射到GSM LAC的LTE CSFB语音时延优化方案,以解决现网中LTE用户语音接入时延大的瓶颈,提升用户感知度,为以后LTE CSFB语音时延优化提供可靠的理论依据。The problem of effectively improving voice service delay for LTE user in rural WCDMA poor covering area has been focused. A voice delay optimization scheme that mapped from MME TAC to GSM LAC in LTE network is proposed. The scheme devotes to solve the voice access delay bottleneck of LTE user in current network,and improve quality of service. The scheme provides reliable theoretical basis for the optimization for the future LTE CSFB voice delay.

关 键 词：LTE 电路域回落 快速返回 GSM 语音业务 

分 类 号：TN929.5[电子电信—通信与信息系统]