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diff --git a/2017/bts_hardware-osmocon2017/bts_hardware.adoc b/2017/bts_hardware-osmocon2017/bts_hardware.adoc new file mode 100644 index 0000000..af4ec20 --- /dev/null +++ b/2017/bts_hardware-osmocon2017/bts_hardware.adoc @@ -0,0 +1,118 @@ +Osmocom BTS Hardware Support +============================ +:author: Harald Welte +:copyright: Harald Welte (License: CC-BY-SA) +:backend: slidy +:max-width: 45em + + +== Overview + +[graphviz] +---- +include::osmocom_ran_options.dot[] +---- + + +== Clasic E1/T1 based BTS + +Supported Vendors/Dialects + +* Siemens (only BS-11 tested) +* Ericsson RBS2xxx (RBS2307, 2308, 2111 tested) +* Nokia InSite, MetroSite + +[options="header"] +|=== +|Pro|Con +|available inexpensively from decomissioned sites | appears a bit antiquated +|up to 12 TRX | not many people familiar with E1/T1 anymore +|high RF output power | no convenient testing/debugging of E1/T1 issues +|rugged mechanical build, high MTTF | high power consumption +| | older models no EGPRS, no AMR +|=== + +== Classic E1/T1 based BTS + +image::images/har2009-bs11_at_tree.jpg[width="90%"] + +== Clasic E1/T1 based BTS + +image::images/har2009-bs11_antennas2.small.jpg[width="50%",role="gimmick_right"] + +* This is how it all started +* E1 based BTS (Siemens BS-11) +* HAR 2009 - Dutch Hacker Camp +* Antennas mounted with duct tape to tree +* E1 back-haul over CAT5 to OpenBSC running in tent + +== Ericsson RBS 2308 + +image::images/rbs2308.jpg[width="60%",role="gimmick_right"] + +* Many RBS2000 models +* All very similar on protocol +* Not all models tested +* Good results with RBS2308 + RBS2111 + +== ip.access nanoBTS + +image::images/nanoBTS_small.png[width="40%",role="gimmick_right"] + +* PoE-enabled single-TRX 200mW indoor BTS +* GPRS/GSM only models and EGPRS-enabled models +* available in band-specific versions for all four bands +* proprietary BTS and PCU inside +** lots of PCU crashes reported by users :( +** no way for us to fix it +* No fully dynamic channels (TCH/F + TCH/H + PDCH) + + +== sysmoBTS + +image::images/symoBTS_v2D_front_1024.jpg[width="35%",role="gimmick_right"] + +* sysmocom builds family of GSM BTS based on OsmoBTS + OsmoPCU +* revenue from this sales used to cross-subsidize OsmoBTS development +* *osmo-bts-sysmo* uses shared-memory /dev to talk to PHY +* *osmo-pcu* uses shared-memory /dev to talk to PHY + +[options="header",cols="2,1,1,1,1,1"] +|=== +|Model | RF Pwr |TRX|Outdoor|PoE | Quad-Band +|sysmoBTS 1002 | 0.2 W | 1 | No | No | Yes +|sysmoBTS 1002 OD | 0.2 W | 1 | Yes | Yes | Yes +|sysmoBTS 1020 | 2.0 W | 1 | Yes | Yes | No +|sysmoBTS 1100 | 10.0 W | 1 | Yes | No | No +|sysmoBTS 2050 | 2x 5 W | 2 | Yes | No | No +|sysmoBTS 2100 | 2x10 W | 2 | Yes | No | No +|=== + +== Nuran LiteCell 1.5 + +image::images/litecell15.jpg[width="40%",role="gimmick_right"] + +* 10W 2-TRX Outdoor BTS +* *osmo-bts-litecell15* uses shared-memory /dev to talk to PHY +* *osmo-pcu* uses shared-memory /dev to talk to PHY + + +== Octasic OCTBTS with OCTPHY-2G + +image::images/octbts_3600_photo__large.png[width="40%",role="gimmick_right"] + +* not a ready-to-deploy BTS product, more a BTS development board +** no enclosure, no PA, no filters +* proprietary PHY runs in Octasic DSP +** raw Ethernet frames towards *osmo-bts-octphy* +** unix domain pcu-socket to *osmo-pcu* +* series of different board models (3000, 3500, 3600) with different + number of DSPs, radio interfaces, ARM/x86 processor core +* two TRX per DSP possible +* not all voice codecs supported +* EGRPS integration with OsmoPCU not working yet + + +== EOF + +End of File |