CSFB终端接入非CSFB 4G网络解决方案

doi:10.3969/j.issn.1000-0801.2016.02.022

Abstract

Abstract:

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.

Key words: 4G, circuit switched fallback, access automatically, legal network, solution

UANGYunfei H,Jianxian LU,Xu ZHAO,Qingyang WANG. Solution of CSFB UE accessing no-CSFB 4G network[J]. Telecommunications Science, 2016, 32(2): 153-157.

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[1]	Technical specification group services and system aspects；architectural requirements：3GPP TS 23.221 version9.5.0-2012：2012[S/OL]. [2012-12-13]. .
[2]	Circuit switched（CS）fallback in evolved packet system（EPS）；stage 2：3GPP TS 23.272 version9.13.0-2012：2012[S/OL]. [2012-12-18]. .
[3]	GPRS enhancements for E-UTRAN access：3GPP TS 23.401 version9.14.0-2012：2012[S/OL]. [2012-12-18]. .
[4]	General packet radio service （GPRS）；service description；stage 2：3GPP TS 23.060 version9.13.0-2012：2012[S/OL]. [2012-12-13]. .
[5]	Mobile radio interface layer 3 specification radio resource control（RRC）protocol：3GPP TS 44.018 Version9.13.0-2012：2012[S/OL]. [2012-06-29]. .
[6]	Network architecture：3GPP TS 23.002 version9.6.0-2011：2011[S/OL]. [2011-08-24]. .
[7]	Radio resource control（RRC）protocol specification：3GPP TS 25.331 version9.11.0-2013：2013[S/OL]. [2013-01-02]. .
[8]	Evolved universal terrestrial radio access（E-UTRA）and evolved universal terrestrial radio access （E-UTRAN）；overall description；stage 2：3GPP TS 36.300 Version9.10.0-2013：2013[S/OL]. [2013-01-07]. .
[9]	Evolved universal terrestrial radio access （E-UTRA）；radio resource control（RRC）；protocol specification：3GPP TS 36.331 Version9.13.0-2013：2013[S/OL]. [2013-01-03]. .
[10]	Non-access-stratum（NAS）protocol for evolved packet system （EPS）；stage 3：3GPP TS 24.301 verion9.10.0-2012：2012[S/OL]. [2012-06-25]. .

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Solution of CSFB UE accessing no-CSFB 4G network

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