OpenBSC November 2022

openbsc@lists.osmocom.org

11 participants
22 discussions

OsmoDevCall on Nov 16, 2022: MS/BS power control in OsmoBSC/OsmoBTS
by Harald Welte 14 Nov '22

14 Nov '22

Dear Osmocom community, we're happy to announce the next incarnation of OsmoDevCall]]. when: November 16, 2022 at 20:00 CET where: https://meeting5.franken.de/b/har-xbc-bsx-wvs This time, @fixeria will be presenting on MS/BS power control support in OsmoBSC/OsmoBTS For those not entirely 3gpp-acronym-savyy: That's how the uplink (phone -> network) and downlink (network -> phone) transmit RF power level is adjusted during an active call in GSM. This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [*] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about OsmoDevCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall Looking forward to meeting you soon! Best regards, Harald [*] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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Two presentation proposals for OsmoDevCall
by Mychaela Falconia 09 Nov '22

09 Nov '22

Hello Osmocom community, Vadim (fixeria) invited me to give a presentation on some of my topics of expertise on OsmoDevCall; I have given some thought to which topics I could present on, and I have two proposals: Presentation 1: Themyscira Wireless: GSM network in sunny California. In this presentation I will describe the community GSM network I am building in my corner of the world, using Osmocom CNI software and whatever BTS hardware fits the bill, currently just one sysmoBTS. Whereas most well-known community GSM networks such as Rhizomatica have been built in areas with no commercial cellular coverage of any kind, my use case is very different: I live in an area where every square mm is blasted with super-strong 4G and 5G signals from 3 major carriers, but a community GSM network is needed in order to provide service specifically to *vintage* mobile phones, which require 2G. I will cover this unusual telos and the different design choices that stem from it, I will cover my own software that interfaces to OsmoMSC via MNCC, and I will cover my interface to USA PSTN via SIP with G.711 voice, including my own implementation of transcoding MGW. Presentation 2: Calypso chipset history and development boards, from TI to FreeCalypso. In this presentation I will cover the history of TI Calypso chipset itself (silicon and DSP revisions, ABB and RF chips), the history of TI's original support for these chips (reference fw and development boards), how various commercial Calypso device vendors changed things (very small changes in the case of Openmoko, huge changes in the case of Compal), how I entered the scene with my FreeCalypso brand, and the impact of two most recently discovered modem modules: Huawei GTM900 and iWOW TR-800. I will cover my motivations and upcoming new hardware plans, and at the end I would like to engage in a discussion on how to make FreeCalypso-suitable hw (meaning hw suitable for running full FC solution) more readily and less expensively available to interested players. I have added both of the above talk proposals to the wiki page: https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall but of course nothing is scheduled yet. Given that the schedule is booked many months in advance these days, it is now up to the community to decide what y'all are interested in, and if there is interest in both topics, which should be scheduled first. Sincerely, Lady Mychaela N. Falconia, Mother of FreeCalypso, Dame of the Order of 2G, Champion of Published Source Code

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OpenBSC November 2022