There are multiple usable open-source LTE handset software implementations. They work with a suitable SDR like e.g. a LimeSDR or similar.
AFAIK not even a single open-source UMTS software implementation works well enough for practical, day-to-day use.
More than one of the LTE implementations archived that reliability. They all guzzle power though, IIRC. But that's the easy part (offload ping detection and FEC (de-)coding to an FPGA).
Thanks. I've heard of srs before but failed to notice their ENB project.
> srsENB has been tested and validated with the following handsets:
LG Nexus 5 and 4
Motorola Moto G4 plus and G5
Huawei P9/P9lite, P10/P10lite, P20/P20lite
Huawei dongles: E3276 and E398
That's a very limited set of handsets. I wonder what's stopping them from adding support for more devices: Is it lack of contributors (no traction, lack of interest), or the cost of development (insanely difficult to reverse engineer, potential IP infringement etc), or limited and buggy functionality (doesn't work with certain carriers etc)?
But non of the actual mobile phones will use software over dedicated hardware, so I fail to see the relevance of dalore's comment: "And that's why the fight for 5g is important"
