# Geolocation Module Overview

The Abeeway-Murata Geolocation Module is a multi-technology fused location LPWAN module designed as the ideal platform to develop a wide range of IoT tracking solutions, minimizing the Total Cost of Ownership (TCO) of IoT geolocation use cases. It allows your engineering to focus on the use case, to optimize time-to-market and cost by using less complex PCBs (all high-density devices being encapsulated), to reduce certification risk and budget, as well as testing time and cost for mass production. This LoRaWAN® fused location module is a cost effective, ultra-low power and small foot print SiP (System in Package) integrating the high performance STM32WB micro-controller (MCU) with integrated Bluetooth 5.x Low Energy transceiver, the latest LoRaWAN® radio transceiver from Semtech, and an optimized arrangement of multi-technology RF engines for indoor and outdoor positioning.

The module contains 3 main chips: a high end MCU STM32WB associated with BLE radio, a high-performance multi-constellation GNSS receiver (GPS, GLONASS, Beidou, and Galileo) and the LR1110 Semtech transceiver to provide LoRa & FSK sub-GHz radio, low power WIFI and GNSS RX.

# Key product features

The module contains a high-performance multi-constellation GNSS receiver (GPS, GLONASS, Beidou, and Galileo) and supports a patented ultra Low-Power GPS (LP GPS) mode which can provide a network assisted first fix in 3 to 5 seconds from cold start at -157dBm, while requiring extremely low power during geolocation. Indoor positioning can be achieved by combining the Bluetooth Low Energy receiver and the ultra-low power Wi-Fi receiver. The LoRaWAN® radio supports the worldwide unlicensed sub-GHz spectrum also supports device-to-device time-of-flight ranging.

The highly configurable peripherals include multiple digital interfaces: I2C/SPI/UART/USB/GPIOs, an ADC channel input, and I/Os to support various power management schemes. These I/Os and the power of the STM32WB make it possible to use the module not only as fused location provider, but also as the main MCU for any LoRaWAN® application, and to drive an external LTE-M or NB-IoT modem for cellular LPWAN support.

# Outdoor Geolocation

  • High performance GNSS chipset: Mediatek MT3333
  • Supports GPS, GLONASS, GALILEO, BEIDOU constellations including QZSS, SBAS ranging
  • Low power consumption: Acquisition 37mW, Tracking 27 mW
  • Superior Sensitivity: Acquisition -148 dBm (cold)/ -163 dBm (hot), Tracking -165 dBm
  • Includes RF Front-end Module (FEM) with external LNA, SAW filter and matching
  • Separate correlator-only system for patented ultra-low power GPS mode (LPGPS) providing first fix in 3 to 5 seconds from cold start at -157dBm

# Short range geolocation :

  • Wifi passive sniffing with 802.11 b/g. -90dBm sensitivity at 802.11 b. DQBSK (2Mb/s)
  • BLE scan: -90dBm in BLE mode
  • Ranging feature: LoRaWAN® time-of-flight distance measurement between supporting devices

# LPWAN and unlicensed RF:

  • 850-960MHz Semtech LR1110 LoRa®/FSK transceiver and 2.4GHz sniffer/correlator
  • High Efficiency 14dBm Tx path, +20dBm PA enabled output power
  • High performance LoRa® Rx:-140dBm sensitivity, 4.6mA Rx current
  • LoRaWAN® Class A/B/C, all LoRaWAN regions in 850-960MHz spectrum.
  • Firmware update over the air support for compressed delta firmware upgrade
  • Optional Secure Element

# MCU platform:

  • Ultra-Low Power MCU: STM32WB55
  • 32 bits ARM -based Cortex- M4
  • 1MB of Flash Memory and 256KB of SRAM memory

# I/Os:

  • Digital: USB 2.0, UART Host, SPI, I2C, serial wire debug bus
  • 10xGPIOs, 1xAIO, Application cross trigger inputs & outputs

# Additional features:

  • Low-Power 32KHz clock, independent TCXOs for MCU and LR1110
  • Power supply & battery monitoring with energy usage monitor
  • Device management: RTC, BOR, timeouts, on chip temperature sensor
  • Communication with the Android/iOS over Bluetooth interface
  • BLE scan function for inventory of tools and accessories
  • Indoor BLE/WiFi fingerprinting with HERE Tracking (requires subscription)
  • Indoor BLE based geolocation with Quuppa Intelligent Location (requires Quuppa infrastructure)
  • BLE based safe/hazard zone detection

# Standards and Certifications

  • LoRa Alliance: EU868, US915, AS923, AU915
  • Radio: EC, FCC, IC, TELEC, ATEX