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2024年4月25日发(作者：)

本文档仅用于通信从业者学习交流

目录

目录.............................................................................................................................................................................................1

1概述.......................................................................................................................................................................................3

1.1

1.2

1.3

2

3

4

5

编写目的............................................................................................................................错误！未定义书签。

术语和缩写........................................................................................................................错误！未定义书签。

参考资料............................................................................................................................错误！未定义书签。

VoLTE概念介绍..................................................................................................................................................................3

VoLTE架构..........................................................................................................................................................................3

VoLTEUE注册流程和呼叫流程.....................................................................................................................................10

VoLTE中的承载................................................................................................................................................................14

5.1

5.2

5.3

QCI5建立流程.................................................................................................................................................16

QCI1建立流程..................................................................................................................................................20

VoIP业务流建立及通话过程简化版（4Gto4G）.....................................................................................22

6VoLTE语音编/解码标准..................................................................................................................................................24

6.1

6.2

6.3

AMR编码特点..................................................................................................................................................24

AMR业务模型..................................................................................................................................................25

AMR速率对应的GBR速率...........................................................................................................................25

6.3.1

6.3.2

GBR速率计算细节..................................................................................................................................25

GBR速率总结...........................................................................................................................................31

7VoLTE评价指标...............................................................................................................................................................32

7.1

7.2

7.3

7.4

时延和丢包率概念............................................................................................................................................32

VoLTE容量.......................................................................................................................................................33

语音质量评价....................................................................................................................................................33

影响VoIP的因素..............................................................................................................................................34

7.4.1

7.4.2

7.4.3

时延............................................................................................................................................................34

抖动............................................................................................................................................................34

丢包率........................................................................................................................................................35

8VoLTE无线技术................................................................................................................................................................35

35

本文档仅用于通信从业者学习交流

8.2

8.3

8.4

8.5

8.6

36

39

41

RLC配置...........................................................................................................................................................41

42

本文标签： 速率错误流程未定义语音

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