TAG: cellular technology

LTE cellular steers UAV: Signals of opportunity work in challenged environments

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No GPS? No Problem! Long-term evolution (LTE) cellular signals can be exploited for accurate and resilient autonomous vehicle navigation in the absence of clear GNSS signals. Simulation and experimental results demonstrate that GPS-like performance can be achieved in the absence of GPS signals when cellular pseudoranges aid an inertial navigation system. By Zaher M. Kassas, Joshua J. Morales, Kimia Shamaei,... read more

Sierra Wireless Offers Internet of Things Platform with GNSS

June 24, 2015By
The Sierra Wireless AirPrime WP Series.

Sierra Wireless has introduced its next generation of the AirPrime WP Series of smart wireless modules for the development of connected products and applications for the Internet of Things. The WP Series provides an integrated device-to-cloud architecture enabling IoT developers to build a Linux-based product using a single module that sends valuable user and product data to the cloud. AirPrime... read more

Trax Personal Tracker Integrates u-blox GNSS and Cellular Technologies

March 31, 2014By
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Swedish WTS (Wonder Technology Solutions) and u-blox have announced that WTS has launched Trax, a personal tracking device for children and pets. Based on u-blox’ GNSS smart antenna and cellular module, the tiny tracker can be located anywhere, anytime via a free Android or iPhone mobile phone app. In addition to real time tracking, Trax provides flexible geofence alerts, and... read more

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u-blox Launches Precision Timing Module for Cellular Networks

December 2, 2013By
u-blox module LEA-MF8.

Swiss-based u‑blox has unveiled the LEA-M8F precision timing GNSS module. The compact, surface-mount module generates a precise 30.72 MHz reference clock crucial for synchronizing industrial data and communication systems such as small, femto and macro-cell mobile networks. High accuracy is achieved by disciplining a local oscillator or other clock source with timing signals received from satellite-hosted atomic clocks. To ensure... read more

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GNSS Test Standards for Cellular Location

May 1, 2013By
Downtown Seattle, a typical test-case environment.

GNSS receivers in cell phones will soon support four or more satellite constellations and derive additional location measurements from other sources: cellular location, MEMS sensors, Wi-Fi, and others. The authors propose test standards covering these sources, meeting industry requirements for repeatable testing while considering the user experience. read more

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