CS回退是一种移动通信网络功能，允许用户美利体育官网首页网址从LTE网络切换回传统的电路交换域网络，以支持语音通话等基础电信服务。其核心机制在于当美利体育官网首页网址处于4G覆盖下但需要进行语音通信时，能无缝回落到2G或3G网络。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| ETSI TS 123 272 V10.11.0 (2013-06)-2013 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 10.11.0 Release 10)
|
2013-06-01 欧洲电信标准协会 |
| ETSI TS 123 272 V10.13.0 (2013-12)-2013 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 10.13.0 Release 10)
短信服务 |
2013-12-01 欧洲电信标准协会 |
| ETSI TS 123 272 V10.3.1 (2011-04)-2011 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 10.3.1 Release 10)
|
2011-04-01 欧洲电信标准协会 |
| ETSI TS 123 272 V10.4.0 (2011-06)-2011 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 10.4.0 Release 10)
架构 |
2011-06-01 欧洲电信标准协会 |
| ETSI TS 123 272 V10.6.0 (2012-01)-2012 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 10.6.0 Release 10)
短信服务 |
2012-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V11.10.0 (2015-07)-2015 规范 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 11.10.0 Release 11)
|
2015-07-01 欧洲电信标准协会 |
| ETSI TS 123 272 V11.2.0 (2012-11)-2012 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 11.2.0 Release 11)
短信服务 |
2012-11-01 欧洲电信标准协会 |
| ETSI TS 123 272 V11.5.0 (2013-06)-2013 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 11.5.0 Release 11)
|
2013-06-01 欧洲电信标准协会 |
| ETSI TS 123 272 V11.9.0 (2014-07)-2014 规范 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 11.9.0 Release 11)
|
2014-07-01 欧洲电信标准协会 |
| ETSI TS 123 272 V12.4.0 (2014-09)-2014 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 12.4.0 Release 12)
|
2014-09-01 欧洲电信标准协会 |
| ETSI TS 123 272 V13.2.0 (2016-03)-2016 规范 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 13.2.0 Release 13)
|
2016-03-01 欧洲电信标准协会 |
| ETSI TS 123 272 V13.4.0 (2016-07)-2016 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 13.4.0 Release 13)
|
2016-07-01 欧洲电信标准协会 |
| ETSI TS 123 272 V14.0.0 (2017-05)-2017 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 14.0.0 Release 14)
|
2017-05-01 欧洲电信标准协会 |
| ETSI TS 123 272 V18.0.0 (2024-04)-2024 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 18.0.0 Release 18)
|
2024-04-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.0.0 (2008-11)-2008 试验标准 |
数字蜂窝电信系统（第 2 阶段+） 通用移动电信系统 (UMTS) 演进分组系统 (EPS) 中的电路交换 (CS) 回退 第 2 阶段（3GPP TS 23.272 版本 8.0.0 第 8 版） Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.0.0 Release 8)
移动管理实体 |
2008-11-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.1.0 (2008-11)-2008 试验 |
数字蜂窝电信系统（第 2 阶段+） 通用移动通信系统 (UMTS) 演进分组系统 (EPS) 中的电路交换 (CS) 回退 第 2 阶段（3GPP TS 23.272 版本 8.1.0 第 8 版） Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.1.0 Release 8)
SGs接口 |
2008-11-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.10.0 (2011-01)-2011 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.10.0 Release 8)
SGs接口 |
2011-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.11.0 (2012-03)-2012 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.11.0 Release 8)
SGs接口 |
2012-03-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.2.0 (2009-01)-2009 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.2.0 Release 8)
SGs接口 |
2009-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.3.0 (2009-03)-2009 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.3.0 Release 8)
SGs接口 |
2009-03-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.4.0 (2009-06)-2009 规范 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.4.0 Release 8)
SGs接口 |
2009-06-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.5.0 (2009-10)-2009 规范 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.5.0 Release 8)
SGs接口 |
2009-10-01 欧洲电信标准协会 |
| ETSI TS 123 272 V8.8.0 (2010-06)-2010 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 8.8.0 Release 8)
SGs接口 |
2010-06-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.10.0 (2012-01)-2012 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.10.0 Release 9)
SGs接口 |
2012-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.13.0 (2013-01)-2013 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.13.0 Release 9)
|
2013-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.15.0 (2013-09)-2013 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.15.0 Release 9)
|
2013-09-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.2.0 (2010-01)-2010 规范 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.2.0 Release 9)
|
2010-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.3.0 (2010-03)-2010 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.3.0 Release 9)
SGs接口 |
2010-03-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.4.0 (2010-06)-2010 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.4.0 Release 9)
SGs接口 |
2010-06-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.6.0 (2011-01)-2011 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.6.0 Release 9)
SGs接口 |
2011-01-01 欧洲电信标准协会 |
| ETSI TS 123 272 V9.7.0 (2011-03)-2011 规范标准 |
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 9.7.0 Release 9)
|
2011-03-01 欧洲电信标准协会 |
| ETSI TS 123 272-2020 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 16.0.0 Release 16)
|
2020-07-01 欧洲电信标准协会 |
| ETSI TS 123 272-2022 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 17.0.0 Release 17)
|
2022-05-01 欧洲电信标准协会 |
| ETSI TS 123 272-2024 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2 (3GPP TS 23.272 version 18.0.0 Release 18)
|
2024-04-01 欧洲电信标准协会 |
| ETSI TS 129 118 V9.7.0 (2012-07)-2012 规程标准 |
通用移动通信系统 (UMTS) LTE 移动性管理实体 (MME) 访问位置寄存器 (VLR) SGs 接口规范（3GPP TS 29.118 版本 9.7.0 第 9 版） Universal Mobile Telecommunications System (UMTS); LTE; Mobility Management Entity (MME) - Visitor Location Register (VLR) SGs interface specification (3GPP TS 29.118 version 9.7.0 Release 9)
SGs接口 |
2012-07-01 欧洲电信标准协会 |
| ETSI TS 129 277 V11.1.0 (2013-01)-2013 规范 |
通用移动通信系统 (UMTS) LTE EUTRAN 接入和非 3GPP 接入之间的优化切换程序和协议 (S102) 第 3 阶段（3GPP TS 29.277 版本 11.1.0 发行版 11） Universal Mobile Telecommunications System (UMTS); LTE; Optimised handover procedures and protocol between EUTRAN access and non-3GPP accesses (S102); Stage 3 (3GPP TS 29.277 version 11.1.0 Release 11)
S102接口 |
2013-01-01 欧洲电信标准协会 |
| ETSI TS 129 277 V14.0.0 (2017-04)-2017 规范标准 |
通用移动通信系统 (UMTS) LTE EUTRAN 接入和非 3GPP 接入之间的优化切换程序和协议 (S102) 第 3 阶段（3GPP TS 29.277 版本 14.0.0 发行版 14） Universal Mobile Telecommunications System (UMTS); LTE; Optimised handover procedures and protocol between EUTRAN access and non-3GPP accesses (S102); Stage 3 (3GPP TS 29.277 version 14.0.0 Release 14)
单无线电语音呼叫连续性 |
2017-04-01 欧洲电信标准协会 |
| ETSI TS 129 277-2013 规程 |
通用移动通信系统(UMTS) LTE EUTRAN 接入和非 3GPP 接入之间的优化切换程序和协议 (S102) 第3阶段（3GPP TS 29.277 版本 11.1.0 发行版 11） Universal Mobile Telecommunications System (UMTS); LTE; Optimised handover procedures and protocol between EUTRAN access and non-3GPP accesses (S102); Stage 3 (3GPP TS 29.277 version 11.1.0 Release 11)
S102接口 |
2013-01-01 欧洲电信标准协会 |
| ETSI TS 129 277-2016 规范 |
Universal Mobile Telecommunications System (UMTS); LTE; Optimised handover procedures and protocol between EUTRAN access and non-3GPP accesses (S102); Stage 3 (V13.0.0; 3GPP TS 29.277 version 13.0.0 Release 13)
S102接口 |
2016-01-01 欧洲电信标准协会 |
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