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  • Welcome
  • Introduction
    • Software Stack
      • eNodeB
      • Home Subscriber Server (HSS)
      • Evolved Packet Core (EPC)
      • IP Multimedia Subsystem (IMS)
    • Reference Hardware Platform
  • User Guide
    • Spectrum Licensing
      • Ofcom Shared Access (UK)
        • Submitting an application
    • Reference Hardware
      • Lab Setup
        • GPSDO setup
        • Connection
        • Minimal configuration
      • CSRAN1
        • Views
        • Theory of operation
        • Bill of materials
        • Resources
    • Network Configuration
      • Introduction
        • Network name and PLMN ID
        • EARFCN
        • PRBs
    • Software Installation
      • Minimal Software Installation
        • Ubuntu Server 22.04
        • Lime Suite and srsRAN
          • srsRAN version
          • PPA packages
          • Source build
        • Configuration
          • eNodeB
          • EPC
      • Standard Software Installation
        • Linux Docker Host
        • Ansible
          • LibreCellular Ansible Collection
          • Example Playbooks
    • SIM Card Programming
      • Hardware
      • SIM programming
    • Provisioning Subscribers
      • srsEPC
        • UE Database
      • PyHSS
        • APNs
        • Subscribers
    • Running the Network
      • Standard Configuration
      • Minimal Configuration
        • Automatic startup
      • Troubleshooting
  • Developer Documentation
    • CI Hardware
      • Subsystems
        • RFTST
        • CIHOST
        • CICON
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CIRAN1
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CIRAN2
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CIRF4x16
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CICLKD
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CIMODS8
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CIMODQ4
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
        • CIPSU
          • Views
          • Theory of operation
          • Bill of materials
          • Resources
      • Components
        • CONIO
          • CONIO-A
          • CONIO-B
        • CSAD10
          • Version 0.3
    • CI Software
      • Phase 1 Commissioning
      • Resources
      • Next steps
    • RF Hardware
      • Components
        • RF Front-End
          • Specifications
          • Theory of operation
          • Design
          • Firmware & Software
          • Credits
        • RF Front-End Mini
          • Specifications
          • Design
          • Firmware & Software
          • Credits
        • LTE Band 3 Low Power Duplexer
          • Version 0.1
        • LTE Band 3 Medium Power Amplifier
          • Version 1.0
  • Technology Primer
    • A Brief History
    • Terminology and Key Functions
    • Bands, Bandwidths and Duplexing
    • MIMO
    • Regulatory
    • Spectrum Licensing
      • Conditions
      • Example Schemes
        • United Kingdom
        • Netherlands
        • United States of America
    • EMF Exposure
    • Network Architecture
    • Radio Access Network
    • Evolved Packet Core
      • Home Subscriber Server (HSS)
      • Mobility Management Entity (MME)
      • Serving Gateway (SGW)
      • Packet Data Network Gateway (PGW)
      • Summary
    • IP Multimedia Subsystem
      • Proxy Call Session Control Function (P-CSCF)
      • Interrogating Call Session Control Function (S-CSCF)
      • Serving Call Session Control Function (S-CSCF)
      • Short Message Centre (SMSC)
    • RF 101
      • Decibel (dB)
      • Effective Isotropic Radiated Power (EIRP)
      • Antenna Systems
      • Power Amplifiers
      • Filtering
  • Frequently Asked Questions
    • Is this a fork or duplication of <insert project name>?
    • Why not simply contribute to an existing project?
    • Is it legal to operate a mobile phone network?
    • What are the operational requirements going to be?
    • What will a LibreCellular setup cost?
    • Can I already buy a kit?
    • What can I do to support the project? Can I make donations?
    • How can I keep up to date with the development of the project?
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© Copyright 2021-2025, LibreCellular contributors. Last updated on Jun 04, 2025.

This project was funded through the NGI0 Entrust and NGI0 PET funds, established by NLnet with financial support from the European Commission’s Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreements No 101069594 and No 825310.