Solution of CSFB UE accessing no-CSFB 4G network

UANGYunfei H; Jianxian LU; Xu ZHAO; Qingyang WANG

doi:10.3969/j.issn.1000-0801.2016.02.022

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Solution of CSFB UE accessing no-CSFB 4G network

Overview | 更新时间：2024-06-05

- Solution of CSFB UE accessing no-CSFB 4G network
- Telecommunication Science Vol. 32, Issue 2, Pages: 153-157(2016)
- 作者机构：
  
  1. 中国电信股份有限公司广东分公司，广东广州 510062
  2. 中国电信股份有限公司广州研究院，广东广州510630
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1000-0801.2016.02.022
  CLC： TN929.53
- Published Online：2016-02，
  
  Published：15 February 2016
- 稿件说明：
移动端阅览
UANGYunfei H, Jianxian LU, Xu ZHAO, et al. Solution of CSFB UE accessing no-CSFB 4G network[J]. Telecommunication science, 2016, 32(2): 153-157.
DOI：

UANGYunfei H, Jianxian LU, Xu ZHAO, et al. Solution of CSFB UE accessing no-CSFB 4G network[J]. Telecommunication science, 2016, 32(2): 153-157. DOI： 10.3969/j.issn.1000-0801.2016.02.022.

摘要

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。

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.

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Keywords

references

Technical specification group services and system aspects；architectural requirements：3GPP TS 23.221 version9.5.0-2012：2012 [S/OL ] . [ 2012 - 12 - 13 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ .

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 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-923_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-923_series/ .

GPRS enhancements for E-UTRAN access：3GPP TS 23.401 version9.14.0-2012：2012 [S/OL ] . [ 2012 - 12 - 18 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ .

General packet radio service （GPRS）；service description；stage 2：3GPP TS 23.060 version9.13.0-2012：2012 [S/OL ] . [ 2012 - 12 - 13 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ .

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 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/44_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/44_series/ .

Network architecture：3GPP TS 23.002 version9.6.0-2011：2011 [S/OL ] . [ 2011 - 08 - 24 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/23_series/ .

Radio resource control（RRC）protocol specification：3GPP TS 25.331 version9.11.0-2013：2013 [S/OL ] . [ 2013 - 01 - 02 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/25_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/25_series/ .

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 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/36_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/36_series/ .

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 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/36_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/36_series/ .

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 ] . ftp://ftp.3gpp.org/specs/2012-12/Rel-9/24_series/ ftp://ftp.3gpp.org/specs/2012-12/Rel-9/24_series/ .

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