Full enhanced NB-IoT Release 15 IP Solution with Multi-Constellation GNSS Support for Cellular IoT Devices

Ceva has designed a complete eNB-IoT IP solution that can serve a wide range of applications.
The Ceva’s DragonflyTM NB2 pre-integrates together a Ceva-BX1 processor, an optimized RF Transceiver, baseband, and a protocol stack to offer a complete Release 15 Cat-NB2 modem IP solution that reduces time-to-market and lowers entry barriers.
The Ceva’s Dragonfly NB2 is a fully software-configurable solution that can be extended with multi-constellation GNSS and sensor fusion functionality.
It includes a reference silicon of the complete modem design, including an embedded CMOS RF transceiver, an advanced digital front-end, physical layer firmware, and a protocol stack (MAC, RLC, PDCP, RRC, and NAS).

Dragonfly NB2 use cases diagram

Dragonfly NB2 Applications


  Ceva Wins 2018 CEM Editor’s Choice Award for its NB-IoT IP Solution 



Fully integrated silicon reference design for eNB-IoT and GNSS, lets customers focus on development and integration of application level software and use-case specific workloads with pre-integrated eNB-IoT modem

Reduces time-to-market and lowers entry barriers
Single-processor, software-configurable solution is guaranteed futureproof for future NB-IoT updates and enhancements
Supports addition of GNSS and Sensor Fusion workloads

Main Features

  • Software components:
    • eNB-IoT Release 15 UE protocol stack
    • L1 control and physical layer (PHY)
    • Encryption and PHY eNB-IoT libraries
    • RTOS & drivers
    • GNSS software for GPS and Beidou
  • Hardware components:
    • eNB-IoT and GNSS digital front-ends
    • Ceva-BX1 processor with dedicated eNB-IoT and GNSS instructions
    • Peripherals include USIM and eSIM interfaces
    • SoC Infrastructure
    • Dual-mode eNB-IoT and GNSS RF Transceiver: full CMOS RF receiver and transmitter, LNA, PA, DC-DC, DCXO

Block Diagram

Dragonfly Block Diagram

Ceva’s Dragonfly NB2 Hardware/Software IP Solution Diagram

Dragonfly Block DiagramCeva’s Dragonfly NB2 Hardware Architecture Diagram





Ceva-X1 IoT Processor and Dragonfly NB2 - the World’s First eNB-IoT Rel14 Solution

Ceva’s Dragonfly NB2 is a highly-integrated and modular solution optimized for Cat-NB2 (3GPP Release 15 eNB-IoT) that can seamlessly be incorporated into chips and modules by the multitude of companies looking to address the large and fast-growing cellular IoT space.