LibreCellular
lastmod 2021-07-05created 2021-07-051 edits
Building a 4G cellular network with open source
Features
- Build flexible LTE base stations using open source and low-cost SDR (Software Defined Radio) hardware
- Low-power small cells configured with 1.4Mhz and 3Mhz bandwidths
- Initially supports data services only, with native voice calls via VoLTE (HD Voice) and Circuit-switched FallBack (CSFB) planned
- Software stack
- eNodeB (4G base station) : srsRAN
- EPC(Evolved Packet Core) : Open5Gs
- IP Multimedia Subsystem(IMS) : Kamailio
- Baseband processing : Intel NUC7i7DNBE single-board computer
- SDR : LimeSDR-USB
- RF Front End : LimeRFE
- Reference Clock : Leo Bodnar's Mini Precision GPS Reference Clock