TS 48.031 – SMLCPP Protocol Definition
3GPP TS 48.031 is the 3GPP Technical Specification for SMLCPP Protocol Definition. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.
Defines SMLC-to-SMLC protocol for location services, covering RIT information exchange and deciphering key distribution.
Releases and versions of TS 48.031
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.0.0 | Read · Download (3GPP) |
| Rel-16 | 16.0.0 | Read · Download (3GPP) |
| Rel-15 | 15.0.0 | Read · Download (3GPP) |
| Rel-14 | 14.0.0 | Read · Download (3GPP) |
| Rel-13 | 13.0.0 | Read · Download (3GPP) |
| Rel-12 | 12.0.0 | Read · Download (3GPP) |
| Rel-11 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.0.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.0 | Read · Download (3GPP) |
| Rel-8 | 8.0.0 | Read · Download (3GPP) |
Scope of TS 48.031
Category: Services (Location Services). Technology generation: 2G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 48.031
- TS 44.071 LMU-SMLC LCS Protocol Specification
- TS 49.031 BSSAP LCS Extension (BSSAP-LE) Specification
- TR 21.905 3GPP Terminology and Definitions
- TS 24.007 Layer 3 Architecture for GSM/UMTS/EPS/5GS
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 43.059 GERAN LCS Stage 2 Specification
- TS 29.002 Mobile Application Part (MAP) Specification
Specifications that reference TS 48.031
Other specifications in the 48 series
- TS 48.014 Gb Interface Physical Layer Specification
- TS 48.016 Gb Interface Network Service Specification
- TS 48.018 BSS-SGSN Interface for GPRS Control
- TS 48.020 PLMN Rate Adaptation Functions
- TS 48.049 Cell Broadcast Service Protocol Specification
- TS 48.051 BSC-BTS Interface Introduction (GSM)
- TS 48.052 BSC-BTS A-bis Interface General Aspects
- TS 48.054 BSC-BTS Physical Layer Interface
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 48.031?
3GPP TS 48.031 is the 3GPP Technical Specification for SMLCPP Protocol Definition. Defines SMLC-to-SMLC protocol for location services, covering RIT information exchange and deciphering key distribution.
Which 3GPP releases include TS 48.031?
TS 48.031 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 48.031 belong to?
TS 48.031 belongs to the Services (Location Services) category of 3GPP specifications. It applies to 2G networks.
View the full specification with interactive table of contents, version history, and AI analysis.
Read Full Specification →