CEVA
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Low-Power UWB IP Meets Needs of IoT, Consumer Apps

June 24, 2021
Industry-first combined IP offering of Bluetooth and UWB technologies is ideal for new use cases in emerging high-volume applications.

Having already rolled out turnkey IP solutions for wireless IoT applications using Wi-Fi, Bluetooth, Cellular-IoT, and GNSS, CEVA has turned its attention to ultra-wideband (UWB) technology. The company has debuted its RivieraWaves UWB platform, comprising extremely power-efficient, ultra-wideband (UWB) turnkey MAC and PHY intellectual property (IP) that’s compliant with the IEEE 802.15.4z standard and in accordance with the FiRa Consortium’s specifications.

The RivieraWaves UWB platform IP delivers secure, centimeter-level accuracy and robust location information through Time-of-Flight (ToF) ranging and Angle-of-Arrival (AoA) processing. The new RivieraWaves UWB platform IP is ideal for a broad range of ultra-low-power applications and products such as tags for pinpoint asset finding, secure digital key functionality for door locks, real-time location services (RTLS), and payment systems. UWB isn’t new, nor has it had a history of broad market success. But of late, it’s seeing a resurgence thanks to its adoption in leading smartphone brands. CEVA is betting its new platform will lower the entry barrier and accelerate time-to-market for semiconductor and IoT companies looking to develop UWB-enabled devices.

The IP consists of a power-optimized hardware PHY along with a flexible, low-latency hardware and software MAC layer. The MAC layer software can be implemented on the CEVA-BX1 DSP when deployed in combination with other connectivity workloads or modes such as direction finding, localization, or radar, or as a standalone UWB MAC on commercial Arm and RISC-V MCUs. A flexible radio interface enables the RivieraWaves UWB platform IP to be deployed with customers’ own RF technology or with CEVA partners’ RF IP. Furthermore, RivieraWaves UWB platform IP is designed for ultra-low-power use cases, offering high performance and cost efficiency, particularly when combined with RivieraWaves Bluetooth IP. This combined IP offering is claimed as an industry first and addresses emerging applications and use cases that leverage both standards.

Below are some key features of CEVA’s RivieraWaves UWB platform IP:

  • MAC and PHY with support of enhanced ranging and security based on IEEE 802.15.4z HRP in accordance with the FiRa Consortium requirements
  • Low-power hardware PHY, implementing a highly sensitive coherent receiver with power-optimized synchronization, supporting centimeter-level accuracy ranging and AoA estimation based on multiple antennas
  • Portable MAC-layer software, with hardware offloading for encryption/authentication (CCM AES) and key management, autonomous ACK handshaking and other real-time critical operations
  • Flexible low-power modes applicable to FiRa ranging scenarios
  • FiRa standard UWB Command Interface (UCI) simplifies the interface to the application-level software
  • Flexible digital radio interface, designed to accommodate various radios
  • Available as a standalone UWB IP or in combination with RivieraWaves Bluetooth platform IP

RivieraWaves UWB is available for licensing now. For more information, visit https://www.ceva-dsp.com/product/rivierawaves-uwb-platform/

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