Overview

RivieraWaves™ UWB is a low power ultra-wideband (UWB) MAC and PHY platform IP based on 802.15.4 HRP and the FiRa Consortium requirements. It delivers secure, centimeter-level accuracy and robust location information through Time-of-Flight (ToF) ranging and Angle-of-Arrival (AoA) processing.

RivieraWaves UWB is ideal for deployment in a range of battery-operated applications and products including tags for pinpoint asset finding, secure digital key functionality for door locks, real-time location services (RTLS) and tap free payment.

The RivieraWaves UWB platform 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 RivieraWaves UWB to be deployed with customers’ own RF technology or with CEVA partners’ RF IP.
Addressing a wide range of use-cases, the RivieraWaves UWB platform IP is architected for seamless integration with the RivieraWaves Bluetooth IP in multi-mode low power wireless SoCs for smartphones and battery-powered accessories.

Fueled by recent adoption by leading smartphone brands, the UWB wireless technology is enjoying an explosive growth in market interest and applications.
The spatial awareness, enabled by UWB’s centimeter-level accuracy together with direction finding, opens new avenues for users to interact with their devices, from popular ‘find my stuff’ applications and seamless music handover when roaming around the house, through to next generation tap free secure payment.
The pulse-based UWB technology is also finding traction in user gesture and presence detection.
In many applications, the system power consumption is optimized by the orchestrated use of UWB coupled with the more traditional prolonged use of Bluetooth, either Bluetooth Dual Mode (BTDM) or Bluetooth Low Energy (LE).

Benefits

Standards-based IP that accelerates time-to-market adoption of UWB in next generation multi-mode low power wireless SoCs for smartphones and battery-powered accessories

Delivers secure, precise and robust location information
Flexible and portable IP, simplifying deployment in different SoC designs for a broad range of applications in smartphones, accessories and other consumer and IoT devices
Available as a standalone UWB IP or in combination with the RivieraWaves Bluetooth IP

Main Features

  • 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 high sensitivity 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
  • Supports secured data transfer up to 27Mbps using pulse based ultra-wideband communication with 500 MHz bandwidth
  • 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

Block Diagram

Resources and Downloads