OsmoSMLC » History » Version 9
osmith, 04/04/2024 08:14 AM
| 1 | 1 | laforge | h1. OsmoSMLC |
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| 2 | |||
| 3 | 3 | laforge | OsmoSMLC is the Osmocom Serving Mobile Location Centre. It implements the SMLC functionality |
| 4 | 4 | laforge | as specified in 3GPP networks [[Location_Services]] architecture. |
| 5 | 1 | laforge | |
| 6 | 4 | laforge | h2. Functionality |
| 7 | |||
| 8 | * Location Methods |
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| 9 | ** currently only the _Timing Advance based method_ of determining a mobile station. |
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| 10 | *** operator must configure the locations of the cells in the osmo-smlc configuration file |
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| 11 | * 3GPP Lb (BSC-SMLC) interface using BSSAP-LE on top of connection-oriented SCCP and M3UA/SCTP/IP |
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| 12 | |||
| 13 | 5 | laforge | If you run a network based on [[OsmoBSC:]] and [[osmo-smlc:|OsmoSMLC]], the serving MSC (such as [[OsmoMSC:]] can subsequently issue _PERFORM LOCATION REQUEST_ queries on the A interface. The BSC will work with the SMLC to obtain the position, and return a _PERFORM LOCATION RESPONSE_ back to the inquiring serving MSC. |
| 14 | |||
| 15 | 3 | laforge | h2. Position in the network |
| 16 | |||
| 17 | The below graph shows the SMLC in the network. |
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| 18 | |||
| 19 | |||
| 20 | {{graphviz_link() |
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| 21 | 1 | laforge | digraph G { |
| 22 | 4 | laforge | rankdir=LR; |
| 23 | MS; |
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| 24 | BTS; |
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| 25 | BSC; |
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| 26 | MSC; |
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| 27 | SMLC [color=red]; |
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| 28 | { rank=same; BSC; SMLC; } |
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| 29 | MS->BTS [label="Um"]; |
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| 30 | BTS->BSC [label="Abis"]; |
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| 31 | BSC->MSC [label="A"]; |
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| 32 | BSC->SMLC [label="Lb"]; |
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| 33 | 3 | laforge | } |
| 34 | }} |
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| 35 | |||
| 36 | |||
| 37 | {{include(cellular-infrastructure:MacroBinaryPackages)}} |
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| 38 | |||
| 39 | h2. Manuals |
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| 40 | |||
| 41 | 9 | osmith | * osmo-smlc User Manual: https://ftp.osmocom.org/docs/osmo-smlc/master/osmosmlc-usermanual.pdf |
| 42 | * osmo-smlc VTY Reference: https://ftp.osmocom.org/docs/osmo-smlc/master/osmosmlc-vty-reference.pdf |
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| 43 | 3 | laforge | |
| 44 | h2. Source Code |
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| 45 | |||
| 46 | 8 | laforge | The source code is available from @gite1.osmocom.org@ (module @osmo-cbc@). |
| 47 | 3 | laforge | |
| 48 | Public read-only access is available via |
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| 49 | <pre> |
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| 50 | 6 | laforge | git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-smlc |
| 51 | 3 | laforge | </pre> |
| 52 | |||
| 53 | 6 | laforge | You can also web-browse the repository at https://gitea.osmocom.org/cellular-infrastructure/osmo-smlc |
| 54 | 3 | laforge | |
| 55 | Contributions are welcome via [[cellular-infrastructure:Gerrit]]. |
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| 56 | |||
| 57 | h2. Test Suite |
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| 58 | |||
| 59 | We have a TTCN-3 test suite as part of our [[cellular-infrastructure:Titan_TTCN3_Testsuites]] |
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| 60 | 7 | laforge | * source code: https://gitea.osmocom.org/ttcn3/osmo-ttcn3-hacks/src/branch/master/smlc |
| 61 | 3 | laforge | * results: https://jenkins.osmocom.org/jenkins/job/ttcn3-smlc-test/test_results_analyzer/ |
| 62 | |||
| 63 | h2. Child Pages |
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| 64 | |||
| 65 | 1 | laforge | {{child_pages}} |
| 66 | 3 | laforge | |
| 67 | h2. Contact |
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| 68 | |||
| 69 | * Contact us via the openbsc@ mailing list, see [[cellular-infrastructure:Mailing Lists]]. |
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| 70 | * Contributions are welcome via [[cellular-infrastructure:Gerrit]]. |
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| 71 | |||
| 72 | {{include(cellular-infrastructure:MacroCommercialSupport)}} |
