VoLTE White Paper

bbc007

Table of Contents
1 Introduction ............................................................................ 3
2 Overview ................................................................................. 3
3 Circuit switched fallback (CSFB) .......................................... 5
3.1          Circuit switched fallback to GERAN or UTRAN ........................................5
3.2          Circuit switched fallback to 1xRTT...........................................................10
4 SMS over SGs....................................................................... 15
5 Support of voice and SMS via IMS ..................................... 18
5.1          Overview of the IMS framework................................................................19
5.2          EPS attach and P-CSCF discovery...........................................................23
5.3          IMS registration, authentication and key agreement..............................24
5.4          Obtaining voice services via IMS..............................................................27
5.5          Radio aspects .............................................................................................29
5.6          Obtaining SMS services via IMS...............................................................31
5.7          Single radio voice call continuity .............................................................34
6 Test solutions for voice and SMS in LTE........................... 35
6.1          Verifying the terminal protocol stack.......................................................35
6.2          Voice quality testing ..................................................................................39
7 Conclusion............................................................................ 40
8 Literature............................................................................... 40
9 Additional information......................................................... 42
10         Abbreviations ....................................................................... 42
【文件名】:12612@52RD_LTE_Voice_1105_RandS.pdf
【格　式】:pdf
【大　小】:775K
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zgz9100

看不太懂啊

yhamlet

看下能用不。

zhengshuo1989

很好奇，想要下下来看看，哈哈！