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4246 discussions

osmo-trx tx/rx Tx / Rx sample offset measure
by nero.moonnn＠gmail.com 28 Nov '25

28 Nov '25

Hello, everyone! How can I correctly measure the TX/RX sampling offset? I need to implement a new sampling frequency (7.68e6) for usrp b200. I added the coefficients for the receiver, and the transmission looks fine, but the reception is not working. I think it's all about the TX/RX sampling offset. What are some ways to measure this offset? Maybe there's something ready-made?

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Struggling with Your Final Research? Let's Talk About PhD Dissertation Help!
by teves20525＠binafex.com 27 Nov '25

27 Nov '25

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New MGW for E1 Abis, future ThemWi sw plans
by Mychaela Falconia 24 Nov '25

24 Nov '25

Dear Osmocom community, I am pleased to announce the first usable version of my new MGW for use with OsmoBSC and E1-based BTS: https://gitea.osmocom.org/themwi/tw-e1abis-mgw This new sw component works as a drop-in replacement for osmo-mgw in the role of BSC-associated MGW for E1 Abis. Principal new features compared to OsmoMGW-E1 are: * The path from RTP input to fixed-timing TRAU-DL output passes through ThemWi jitter buffer (twjit), instead of blindly converting every received RTP packet to a TRAU-DL frame, queueing those frames to I.460 MUX Tx and hoping for the best. * For FR codec in the present implementation and for EFR coming later, a proper UL-to-DL transform (aka TFO transform) is applied to this RTP-to-DL path. This way if the stream of UL frames from the other call leg includes gaps due to radio errors, FACCH stealing or DTXu pauses, or if gaps are caused by packet loss, the stateful transform will produce proper error concealment or comfort noise insertion per TS 28.062 section C.3.2.1.1. * CSD is supported! This development may be the first time in Osmocom history of CSD working on an E1-based BTS. I tested this new MGW with Nokia InSite BTS and confirmed it working with all 3 classic GSM voice codecs (FR, HR and EFR) and with CSD up to 9600 bps. CSD at 14400 bps (D145_SYNC and EDATA frames) is supported too, but remains untested due to lack of needed support in OsmoMSC. My eventual goal is to use OsmoBSC and this new MGW with Ericsson RBS6k BTS, consisting of DUG20 and RUS or RRUS. I already have DUG20 and RUS01 hardware, but given all other work I still have to do on ThemWi CN software, I haven't got around to playing with Ericsson gear yet. My plans going forward are: * Get back to twrtp patches in Gerrit: implement the next round of changes per last round of review, and hopefully get twrtp into libosmo-netif so we can make it an option in OsmoBTS, in addition to E1 BTS. * Finish long-deferred work on libgsmhr1 in gsm-codec-lib. HRv1 codec is of course of no practical interest, can be regarded as a "just for fun" retronetworking feature, but I need to finish it so certain ThemWi components can rely on having encoders and decoders for all GSM codecs always available, and my TFO transform for HRv1 will serve as a stepping stone toward much more important TFO transform for EFR. * After the above, the big work item for me will be ThemWi-MSC. I won't get into details as I don't like writing about vaporware, but many of you know that currently I am still stuck on 2023-02 version of OsmoMSC while running newer versions of all other components. ThemWi-MSC will be my proper solution, but I'll write about it in detail only when it becomes a reality. Never stopping work toward restoration of top-quality GSM/2G networks, Mother Mychaela

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Digital Frontiers: Online Platforms and Media Expansion in Uzbekistan
by vanjohnson716＠proton.me 23 Nov '25

23 Nov '25

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by teves20525＠binafex.com 19 Nov '25

19 Nov '25

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ip.access nano 3G S8 Configuration
by John Thewlis - Meath Broadband 18 Nov '25

18 Nov '25

We are trying to setup this AP as part of the 3.5G Osmocom project. We have the software stack operational and are now preparing the nano for testing. When we try to login via telnet at port 8090 we are getting a constant refusal to connect:- root@osm/openbsc/openbsc/src/ipaccess# telnet 192.168.192.30 8090 Trying 192.168.192.30... telnet: Unable to connect to remote host: Connection refused The device seems to be locked as indicated by the leds on the front panel. We have tried resetting the nano to see if this would help but to no avail. Any ideas as to how to access the device for initial configuration?. Thanks John

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GPRS - local and foreign TLLIs
by Luca Melette 18 Nov '25

18 Nov '25

Hello everybody, after setting up a nanoBTS with OpenBSC/SGSN/GGSN, I had some troubles trying to connect my smartphone to the GPRS cell. Investigating the BTS-to-SGSN traffic, I saw that the frames sent by the SGSN were all marked with the same N(U) value (at LLC layer), the value was 0. With some debug, I found that the there was a mismatch in the TLLI storage, used to keep the status of attached terminals. The mentioned code is contained in gprs_llc.c, involving LL Entity functions and gprs_llc_tx_ui(). /* look-up or create the LL Entity for this (TLLI, SAPI) tuple */ lle = lle_by_tlli_sapi(msgb_tlli(msg), sapi); if (!lle) { struct gprs_llc_llme *llme; LOGP(DLLC, LOGL_ERROR, "LLC TX: unknown TLLI 0x%08x, " "creating LLME on the fly\n", msgb_tlli(msg)); llme = llme_alloc(msgb_tlli(msg)); lle = &llme->lle[sapi]; } The TX function uses the previously received TLLI to lookup for the LLE. The lle_by_tlli_sapi() performs the search, but preliminary it applies a foreign2local TLLI conversion to ensure to have a local one. Since no valid entry for the searched TLLI is found, a new one is created. And the problem is here. The new entry has the foreign TLLI. Next time the lookup fails again, and a new entry is created. This way, the counter N(U) is always reset, and the mobile do not recognize the message sequence and no attach is possible. My question is about foreign and local TLLIs. I patched the lookup, avoiding the conversion, so that the LLE is found and everything works fine... but... What is the sense of the conversion? Should the TLLI be always stored as a local one? Can this problem be solved with another foreign2local while allocating new entries? Actually, my problem has been solved with that workaround. But I'm curious to know what is the right way. Hope somebody can answer :) Thanks. Cheers, LM

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Best Options for Branded Shoes in 2025?
by shahabmuhammad5656＠gmail.com 15 Nov '25

15 Nov '25

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Best Review Platforms UK for Small Businesses in 2025?
by olivianaylor322＠gmail.com 14 Nov '25

14 Nov '25

Hey everyone! I'm looking to boost my online presence and would love some suggestions. What are the best review platforms UK https://truereviews.uk/ businesses are using right now? I'm mainly targeting local customers, so trustworthy and widely-used platforms are key. Any tips or experiences with Trustpilot, Google Reviews, or others? Thanks in advance!

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Moto X3M Ultimate Guide: Tips Tricks and Strategies for Every Level
by current.llama.fxky＠hidesmail.net 12 Nov '25

12 Nov '25

Moto X3M is an exciting online motorcycle racing game that challenges players with thrilling obstacles and high-speed tracks. This game provides adrenaline-pumping fun while testing skills and reflexes. Players of all ages enjoy mastering stunts, completing levels, and competing for top scores. The combination of speed, strategy, and precision makes Moto X3M a standout among racing games. https://motox3mfree.com/ Gameplay Mechanics Moto X3M offers intuitive controls and realistic physics that enhance the gaming experience. Players control a motorcycle through various levels filled with ramps, loops, water hazards, and obstacles. The left and right arrow keys allow balance control, while the up arrow accelerates and the down arrow slows down or brakes. Mastering these controls is crucial to achieving high scores and completing levels efficiently. Levels and Challenges The game features multiple levels, each with unique designs and difficulty. Early levels help players get accustomed to basic controls and simple jumps. As the game progresses, tracks become more complex, introducing moving obstacles, spikes, water pits, and narrow ramps. These challenges require precise timing, careful planning, and quick reactions. Stunts and Tricks One of the most entertaining aspects of Moto X3M is performing stunts. Players can flip their motorcycle mid-air or perform backflips to earn extra points. Successful tricks not only increase scores but also give players a sense of accomplishment. Timing is essential because landing incorrectly can lead to crashes and level restarts. Graphics and Sound Moto X3M impresses players with its colorful graphics and smooth animations. The design of motorcycles, tracks, and obstacles is visually appealing, enhancing the gaming experience. Background music is upbeat and engaging, keeping players motivated throughout the levels. Sound effects for jumps, crashes, and speed boosts add realism to the game, making it more immersive. User Interface The game has a clean and user-friendly interface. Players can easily select levels, view high scores, and adjust settings without confusion. Simple menus and clear buttons make navigation effortless. The interface also displays the timer and score, allowing players to track performance during gameplay. Strategies for Success Winning in Moto X3M requires more than fast reflexes. Players must plan each jump carefully, maintain balance, and anticipate obstacles. Practicing levels repeatedly helps in understanding track patterns and identifying the best approach to complete challenges. Observing other players’ techniques or online tutorials can also improve performance. Maintaining Balance Maintaining balance is the key to surviving difficult tracks. Leaning forward or backward at the right moment prevents crashes on ramps and loops. Sudden obstacles may require rapid adjustments to prevent falling. Mastering balance allows players to perform stunts and cross complex sections smoothly. Efficient Use of Speed Speed management is another essential strategy. Accelerating too fast can cause crashes, while going too slow may prevent clearing jumps. Players need to find the optimal speed for each section of the track. Careful timing of acceleration and braking helps in navigating challenging areas and achieving high scores. Multiplayer and Online Features Moto X3M provides online versions that allow players to compete with others globally. Leaderboards display top players, fostering a sense of competition and community. Sharing scores and achievements on social media increases engagement and motivates players to improve. Challenges and Competitions Special challenges and events are sometimes introduced, adding variety and excitement. Completing these challenges rewards players with bonuses, points, or unlockable levels. Competitions encourage players to enhance skills and try advanced tricks to outperform others. Mobile and Browser Versions Moto X3M is available on both web browsers and mobile devices, offering accessibility and convenience. Browser versions do not require installation, while mobile apps allow gaming on the go. Cross-platform compatibility ensures that players can enjoy the game anytime, anywhere. Controls Adaptation Mobile versions adapt controls for touchscreens, providing virtual buttons for acceleration, braking, and balance. Although slightly different from keyboard controls, the mobile interface remains intuitive and responsive. Practicing on mobile devices can help players maintain skills while away from a computer. Tips for Beginners For new players, starting with simple levels is recommended. Focus on learning controls, maintaining balance, and understanding track layouts. Avoid rushing through levels; patience and practice are essential. Gradually progressing to advanced levels builds confidence and improves performance. Avoiding Common Mistakes Beginners often make mistakes like accelerating too fast, attempting difficult stunts too early, or ignoring obstacles. Observing these errors and learning from them helps players avoid repeated crashes. Proper pacing and careful observation are key to mastering Moto X3M. Community and Fan Support Moto X3M has a strong online community. Forums, fan pages, and social media groups share tips, level walkthroughs, and custom challenges. Engaging with other players provides motivation and inspiration to explore new strategies and tricks. Fans often create content, including gameplay videos and tutorials, enhancing the experience for everyone. Custom Levels and Creativity Some versions of Moto X3M allow players to create and share custom levels. This feature encourages creativity and extends gameplay. Designing unique tracks and challenging friends adds a personal touch to the game, making it more enjoyable and replayable. Conclusion Moto X3M is more than a motorcycle racing game; it is a test of skill, strategy, and reflexes. With challenging levels, exciting stunts, vibrant graphics, and engaging music, the game provides endless entertainment. Whether playing for fun or competing online, Moto X3M offers an unforgettable experience for gamers of all ages. Mastering balance, timing, and speed ensures success, while the supportive community adds depth to the gameplay. With mobile and browser accessibility, players can enjoy Moto X3M anytime, anywhere, making it one of the most thrilling motorcycle racing games available today.

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