Interesting3GPPSpecsForDevelopers¶

This page lists a variety of topics that might be interesting for Osmocom developers to look at in terms of future features that might be interesting to investigate from an Osmocom point of view. The list was created by laforge in February 27, and is the result of going through the list of major changes from 3GPP Rel-4 through Rel-14.

Push-to-talk over Cellular (IMS based)¶

• http://www.3gpp.org/DynaReport/WiCr--32063.htm
• http://www.3gpp.org/DynaReport/23979.htm

Multiple TBF Support (GPRS)¶

• http://www.3gpp.org/DynaReport/WiCr--50600.htm

Extended Uplink TBF (GPS)¶

• http://www.3gpp.org/DynaReport/WiCr--2324.htm

Network Assisted Cell Change (GPRS)¶

• http://www.3gpp.org/DynaReport/WiCr--2314.htm

PS Handover in A/Gb interface (GPRS/UMTS)¶

• http://www.3gpp.org/DynaReport/WiCr--50559.htm
• http://www.3gpp.org/DynaReport/WiCr--50564.htm

Voice Call Continuity CS - IMS¶

• http://www.3gpp.org/DynaReport/WiCr--32091.htm

Diameter on GGSN Gi interface¶

• http://www.3gpp.org/DynaReport/WiCr--13023.htm

3GPP CS interworking with BICC/ISUP and SIP-I networks¶

• http://www.3gpp.org/DynaReport/29164.htm
• http://www.3gpp.org/DynaReport/WiCr--13033.htm
• Q.1912.5: SIP <-> BICC/ISUP interworking: https://www.itu.int/rec/T-REC-Q.1912.5-200403-I/en
• Q.3946.x: Conformance tests for SIP

Latency reduction (GPRS / EGPRS2)¶

• http://www.3gpp.org/DynaReport/WiCr--50582.htm

NcSIP (SIP Between G-MSCs?)¶

• http://www.3gpp.org/DynaReport/29802.htm
• http://www.3gpp.org/DynaReport/WiCr--320018.htm
• http://www.3gpp.org/DynaReport/WiCr--360025.htm

HomeNodeB¶

• http://www.3gpp.org/DynaReport/WiCr--380065.htm
• http://www.3gpp.org/DynaReport/WiCr--390033.htm
• http://www.3gpp.org/DynaReport/25820.htm
• http://www.3gpp.org/DynaReport/WiCr--400035.htm (eHNB)
• http://www.3gpp.org/DynaReport/WiCr--450053.htm
• http://www.3gpp.org/DynaReport/WiCr--470005.htm
• http://www.3gpp.org/DynaReport/WiCr--510053.htm

GERAN / LTE re-selection and hand-over¶

• http://www.3gpp.org/DynaReport/WiCr--50583.htm

A over IP interface¶

• http://www.3gpp.org/DynaReport/43903.htm (Study)
• http://www.3gpp.org/DynaReport/WiCr--50589.htm (Study)
• http://www.3gpp.org/DynaReport/WiCr--50591.htm (Spec)