LimeSDR vs USRP B210 for 5G testing
Practical comparison of LimeSDR and Ettus USRP B210 for 5G NR and LTE UE testing: bandwidth, clocking, MIMO, throughput, and which conformance suites each suits.
8 min read
Both boards appear in AEON lanes and both run the same TTCN-3 suites, but they are not equivalent. Pick per campaign rather than per preference.
| LimeSDR USB | Ettus USRP B210 | |
|---|---|---|
| Frequency range | 100 kHz - 3.8 GHz | 70 MHz - 6 GHz |
| Instantaneous BW | up to 61.44 MHz | up to 56 MHz |
| Channels | 2x2 MIMO | 2x2 MIMO |
| ADC/DAC | 12-bit | 12-bit |
| Host interface | USB 3.0 | USB 3.0 |
| Clock | internal, optional ext ref | internal, GPSDO option |
| Driver | LimeSuite / SoapySDR | UHD |
| n78 (3.5 GHz) | yes, near band edge | yes, comfortable |
Which to choose
- Sub-3 GHz LTE and NR protocol conformance: LimeSDR is plentiful and cheaper per lane.
- n78 / n77 mid-band work: prefer B210 — more headroom above 3.5 GHz.
- Timing-sensitive RRM and handover cases: B210 with GPSDO.
- Long soak and regression runs: whichever has the larger free pool; verdicts are equivalent.
Select explicitly
aeon lanes list --sdr lime --available aeon lanes reserve --sdr b210 --gpsdo --region eu-west-1 aeon exec run --campaign rrm --sdr b210 --build rc3
The point about cost
Both boards cost a few hundred to low thousands of dollars. A conventional protocol tester costs six figures plus annual maintenance. The engineering value of a cloud lane is not that the SDR is cheap — it is that you never buy, calibrate, or wait for one, and that ten engineers can run in parallel on a Tuesday afternoon.
Run this against a real SDR lane
The tester is a service, not a box. Push a build, reserve a lane, get a verdict.