RF DSP’s 5G NR low PHY IP and DFE designs are optimized for NTN LEO requirements supporting:

  • Large number of simultaneous beams and high subscriber density
  • FR1 L-band and S-band, and FR2 Ka-band and Ku-band
  • Real-time mapping of multiple carriers/data streams to beams
  • Intelligent management of multiple simultaneous beams at the same frequency to maximize spectral efficiency
  • Advanced Massive MIMO Hybrid Beamforming algorithms optimized for NTN channel models
  • Digital Front-End (DFE) designs for NTN RF Frontend and beamforming configurations
  • Reference design and API for PHY and DFE configuration and management Optimized for AMD Versal AI and Gen 4 RFSoC DFE chips (ZU67/65)

NB-IoT PHY IP & DFE Design

RF DSP’s NB-IoT PHY IP & DFE design core implements the PHY and DFE functions of NB-IoT UL and DL signals defined in the 3GPP Physical channels and modulation specification [TS 36.211 v17.3.0], with high performance and optimized blocks. The core can be configured for either Terrestrial Network (TN) or Non-Terrestrial Network (NTN).


  • Registers for (n)FAPI and O-RAN M-plane interfaces
  • FDD & TDD
  • TN and NTN
  • NPUSCH SCS: 15 & 3.75kHz
    • FDD Format: 0, 1, 2
    • TDD Format: 0, 1, 2, 0-a & 1-a
    • SCS: 3.75 & 1.25kHz
  • Up to 2 Tx/Rx Ports
  • Up to 4 independently configurable carriers.
  • ORAN Split 7-2x
  • DFE for standalone, in-band or guard-band operation with NR carriers
  • Conformance test platform
    • Matlab code
    • Bit exact or accuracy testing with DDR playback and record paths