Proving the Business Case for the Internet of Things

Sony announces module for upcoming Eltres IoT network

Steve Rogerson
May 30, 2019




Sony is releasing a communications module ready for its Eltres low-power wide area (LPWA) IoT network due to be rolled out this autumn.
 
The Japanese company has announced the upcoming release of the CXM1501GR communication module, which is compatible with the Eltres standard that Sony has developed for IoT applications. Equipping IoT devices with this communication module enables them to connect to the Eltres IoT network service, which is scheduled to begin service rollout in the autumn.
 
Sony is positioning this product for applications in a broad range of IoT devices, aiming to develop various services making the most of stable wireless communications over long distances while moving at high speeds.
 
Most IoT systems wirelessly transfer information obtained by various sensors to cloud servers, where the data are collected and processed, and the output then sent to user devices such as smartphones or tablets for display. An LPWA network is a low-power wireless telecommunication technology used for transferring low-bit data across a wide area, and it is expected to see significantly growing demand for communications in IoT systems.
 
The module integrates a newly developed transmitter LSI that transmits signals conforming to the protocol of the Eltres wireless communications standard in the 920MHz band as well as a circuit for impedance matching with an externally mounted antenna. Also included are a GNSS receiver LSI – an IoT sensor that obtains time and position information – and high-frequency components such as the saw filter required for the GNSS receiver. With all of these components built in, this product can expand the ease and versatility of IoT edge device design.
 
A built-in π/2-shift BPSK modulation (biphasic deviation modulation) LSI operates on low power and produces a favourable signal-to-noise ratio in narrow bandwidth communications.
 
Built-in impedance-matching for a 920MHz external antenna allows for direct connection to a general-purpose antenna and enables a custom antenna to be designed easily.
 
The device has built-in high-sensitivity, low-power GNSS LSI for compatibility with GPS, Glonass and QZSS. And its built-in high-frequency circuit is optimised for GNSS reception enabling direct connection to antennas.
 
Sony has obtained certification for wireless communication equipment construction and design in compliance with the Radio Act of Japan (certification number 007-AG0043); no further certification is required when the listed antenna are used. The company has also obtained module type-certification from the Japan Approvals Institute for Telecommunications Equipment as compliant to Japan’s Telecommunications Business Act.