4 ms·

"There are no open source LTE stack to learn from" https://osmocom.org/projects https://osmocom.org/projects

by ng55QPSK 5y ago

Firerouge 5y ago
s/LTE stack/mmWave stack ?
- SSLy 5y ago
  There are barely corporation-backed 5G mmWave stacks, and they're absurdly more complicated than 4G.
  - sipjca 5y ago
    Can you shed more light on this? Do you mean in terms of beam forming? And other radio resource management complexities that arise from it? I worked in 5G mmWave on the UE side so can imagine some of the scheduling complexity. However for a basic mmW stack, like one to be implemented by OAI or srsRAN would likely scale the problem down to something more basic
    - SSLy 5y ago
      Yes, pretty much indeed beamforming and scheduling complexity. I could see srsRAN making a lowband (<6 GHz) impl of 5G, but not the crazily complicated high freqs. At least without some crazy funding.
elric 5y ago
That website is not the greatest for finding out about the state of the projects, as in, is anyone using this? Are there any notable deployments? Can someone shed some light on this?
drmpeg 5y ago
The most popular open source LTE stack is srsLTE (now called srsRAN). https://github.com/srsran/srsRAN https://github.com/srsran/srsRAN
- deleted 5y ago
  [deleted]
- Gys 5y ago
  Unfortunately this refers to srs.io for more info, but that domain is not found. So I am left wondering what SRS means.
  - newhouseb 5y ago
    You want https://www.srsran.com/ https://www.srsran.com/, but to save you a click: SRS stands for Software Radio Systems.
- newhouseb 5y ago
  The srsLTE/srsRAN code is also fairly accessible and well written -- a year or so ago I used it as a reference for demodulating LTE downlink signals (in a python notebook). Also worth calling out ShareTechnote which is basically the personal notebook of a (brilliantly prolific) telecom engineer (now at Apple): https://www.sharetechnote.com/ https://www.sharetechnote.com/. It's incredibly comprehensive and well linked -- a much easier reference than paging through hundreds of pages of PDFs.

"There are no open source LTE stack to learn from" https://osmocom.org/projects https://osmocom.org/projects

Firerouge 5y ago

s/LTE stack/mmWave stack ?

SSLy 5y ago
There are barely corporation-backed 5G mmWave stacks, and they're absurdly more complicated than 4G.
- sipjca 5y ago
  Can you shed more light on this? Do you mean in terms of beam forming? And other radio resource management complexities that arise from it? I worked in 5G mmWave on the UE side so can imagine some of the scheduling complexity. However for a basic mmW stack, like one to be implemented by OAI or srsRAN would likely scale the problem down to something more basic
  - SSLy 5y ago
    Yes, pretty much indeed beamforming and scheduling complexity. I could see srsRAN making a lowband (<6 GHz) impl of 5G, but not the crazily complicated high freqs. At least without some crazy funding.

elric 5y ago

That website is not the greatest for finding out about the state of the projects, as in, is anyone using this? Are there any notable deployments? Can someone shed some light on this?

drmpeg 5y ago

The most popular open source LTE stack is srsLTE (now called srsRAN). https://github.com/srsran/srsRAN https://github.com/srsran/srsRAN

deleted 5y ago
[deleted]
Gys 5y ago
Unfortunately this refers to srs.io for more info, but that domain is not found. So I am left wondering what SRS means.
- newhouseb 5y ago
  You want https://www.srsran.com/ https://www.srsran.com/, but to save you a click: SRS stands for Software Radio Systems.
newhouseb 5y ago
The srsLTE/srsRAN code is also fairly accessible and well written -- a year or so ago I used it as a reference for demodulating LTE downlink signals (in a python notebook). Also worth calling out ShareTechnote which is basically the personal notebook of a (brilliantly prolific) telecom engineer (now at Apple): https://www.sharetechnote.com/ https://www.sharetechnote.com/. It's incredibly comprehensive and well linked -- a much easier reference than paging through hundreds of pages of PDFs.