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laforge, 11/14/2016 12:11 PM
Overall Roadmap¶
This is the general direction in which we would like the Osmocom Cellular Infrastructure projects to move. None of this will of course happen
without significant contribution and/or funding:
BTS¶
- more systematic genration + reporting of alarms over Abis OML
- communication of BTS specific capabilities/features towards BSC (via Abis extension) to avoid BTS/BSC config mismatches
BSC¶
- BSC/MSC split: Real A interface with BSSAP/BSSMAP between MSC and BSC
- Support of 3GPP A-over-IP in addition to current non-standard IPA multiplex / SCCPlite
- Alarm handling
- generation of Alarms inside the BSC
- aggregation/forwarding of Alarms received from Abis
- reporting of alarms via control interface
- control interface / SNMP proxy for alarm -> trap conversion
- Move all media processing (TRAU frames, RTP) to separate MGW daemon, controlled via MGCP
Core Network¶
- BSC/MSC split: Real A interface with BSSAP/BSSMAP between MSC and BSC
- externalize the HLR+AUC from the NITB (osmo-gsup-hlr)
- support for UMTS AKA over GERAN
- support of SMS delivery via GPRS
- support of combined CS/PS attach (2G and 3G)
- support of inter-BSC hand-over (after BSC/MSC split)
- support of inter-MSC hand-over (after HLR+AUC externalization)
- Real A interface (MTP2/MTP3/SCCP)
- Move all media processing (TRAU frames, RTP) to separate MGW daemon, controlled via MGCP
3G/3.5G related¶
- Iu-CS and Iu-PS interface over M3UA (as specified in 3GPP), not just SUA (current implementation)
- test/validate mobility between multiple hNodeB/smallcells
- hand-over bewtween multiple hNodeB/smallcells
- Iu-CS/Iu-PS validation against RNCs
- Iuh validation against more hNodeB/smallcell vendors
- inter-RAT mobility (2G <-> 3G)
- network with simultaenous 2G and 3G/3.5G cells
PCU¶
- more complete EGPRS implementation for uplink and downlink
- multi-slot uplink support
- PTCCH support (TA loop for fast moving MS)
Build and Test infrastructure¶
- more mature osmo-gsm-tester setup
- have osmo-gsm-tester do full end-to-end regression testing on every commit or every night
- develop test cases for MO-Call, MT-Call, Hold/Retrieve, USSD, SMS-in-Call, hand-over, etc.
- not only functional testing, but performance testing (time to deliver N SMS)
- GPRS/EGPRS testing
- (single-MS ul/dl throughput, multi-MS ul/dl throughput)
- mobility between different BTS/PCUs
- testing against different modems (different baseband processr, protocol stack)
Libraries/Infrastructure¶
- VTYv2: Externalize VTY + config management
- shared daemon that manages a MIB and offers VTY + control interface to access that MIB
- individual programs just access that config daemon via well-defined API
- preferrably with transactions, roll-back
- avoid hand-written code for parsing idividual VTY commands
- avoid duplicate code for VTY + Control interface
Updated by laforge over 7 years ago · 1 revisions