无线电接口定时是测量移动站与基站之间无线电接口时间关系的参数集合，包括绝对时间(AT)和相对时间差(RTD/ATD)，用于辅助定位计算。该参数在位置服务中提供关键的无线电信号定时信息，支持定位算法的实现。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| ETSI TS 101 529 V8.1.1 (2002-05)-2002 规范 |
数字蜂窝电信系统（第 2 阶段及以上） 定位服务 LCS：服务移动定位中心 服务移动定位中心（SMLC SMLC） SMLCPP 规范（3GPP TS 08.31 版本 8.1.1 1999 年发布） Digital cellular telecommunications system (Phase 2+); Location Services LCS: Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 08.31 version 8.1.1 Release 1999)
SMLCPP协议 移动定位中心 |
2002-05-01 欧洲电信标准协会 |
| ETSI TS 101 529-2002 规范 |
数字蜂窝通信系统(第2+阶段).定位业务(LCS).移动定位服务中心-移动定位服务中心(SMLC - SMLC).SMLCPP规范3GPP TS 08.31(版本8.1.1,1999年发布) Digital Cellular Telecommunications System (Phase 2+); Location Services LCS: Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP Specification
SMLCPP协议 移动定位中心 |
2002-05-01 欧洲电信标准协会 |
| ETSI TS 148 031 V11.0.0 (2012-10)-2012 规范 |
Digital cellular telecommunications system (Phase 2+); Location Services (LCS): Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 11.0.0 Release 11)
服务移动定位中心 |
2012-10-01 欧洲电信标准协会 |
| ETSI TS 148 031 V13.0.0 (2016-01)-2016 规范标准 |
Digital cellular telecommunications system (Phase 2+); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 13.0.0 Release 13)
服务移动位置中心 |
2016-01-01 欧洲电信标准协会 |
| ETSI TS 148 031 V17.0.0 (2022-05)-2022 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 17.0.0 Release 17)
位置测量单元 服务移动位置中心 |
2022-05-01 欧洲电信标准协会 |
| ETSI TS 148 031 V19.0.0 (2025-10)-2025 规范 |
Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 19.0.0 Release 19)
服务移动定位中心 |
2025-10-01 欧洲电信标准协会 |
| ETSI TS 148 031 V4.0.0 (2001-05)-2001 协议标准 |
数字蜂窝电信系统（第 2 阶段+） 定位服务 (LCS) 服务移动定位中心 服务移动定位中心 (SMLC SMLC) SMLCPP 规范（3GPP TS 48.031 版本 4.0.0 发行版 4） Digital cellular telecommunications system (Phase 2+); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 4.0.0 Release 4)
位置测量单元 服务移动位置中心 |
2001-05-01 欧洲电信标准协会 |
| ETSI TS 148 031 V6.0.0 (2005-02)-2005 协议标准 |
数字蜂窝电信系统（第 2 阶段及以上） 定位服务 LCS：服务移动定位中心 服务移动定位中心（SMLC SMLC） SMLCPP 规范（3GPP TS 48.031 版本 6.0.0 第 6 版） Digital cellular telecommunications system (Phase 2+); Location Services LCS: Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 6.0.0 Release 6)
位置测量单元 服务移动位置中心 |
2005-02-01 欧洲电信标准协会 |
| ETSI TS 148 031-2010 规程标准 |
数字蜂窝电信系统（ 第2阶段以上） 定位服务 (LCS)：服务移动定位中心 服务移动定位中心 (SMLC SMLC) SMLCPP 规范（3GPP TS 48.031 版本 9.0.0 发行版 9） Digital cellular telecommunications system (Phase 2+); Location Services (LCS): Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 9.0.0 Release 9)
SMLCPP协议 服务移动位置中心 |
2010-02-01 欧洲电信标准协会 |
| ETSI TS 148 031-2012 规范 |
Digital cellular telecommunications system (Phase 2+); Location Services (LCS): Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 11.0.0 Release 11)
服务移动定位中心 |
2012-10-01 欧洲电信标准协会 |
| ETSI TS 148 031-2018 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 15.0.0 Release 15)
位置测量单元 服务移动位置中心 |
2018-07-01 欧洲电信标准协会 |
| ETSI TS 148 031-2020 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 16.0.0 Release 16)
服务移动位置中心 |
2020-09-01 欧洲电信标准协会 |
| ETSI TS 148 031-2022 规范标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 17.0.0 Release 17)
服务移动位置中心 |
2022-05-01 欧洲电信标准协会 |
| ETSI TS 148 031-2024 规程标准 |
Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 18.0.0 Release 18)
服务移动位置中心 |
2024-05-01 欧洲电信标准协会 |
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