Professor William Webb, pictured, CEO of the Weightless SIG, commented: "Solid development work has progressed the specification significantly since October 2014. We are looking forward to publishing v1.0 of the standard in the second quarter".
According to the SIG, Weightless-N v1.0 will provide uplink connectivity using ultra narrowband technology, while future iterations of the standard will incorporate bidirectional communications. The standard will also support frequency hopping to provide interference tolerance, mobility support and security.
Work commenced on the development of the Weightless-N standard in the third quarter of 2014, after a comprehensive review of functional and parametric requirements for IoT connectivity technology in sub-GHz spectrum.
Weightless-N is set to offer the first global open Weightless standard for IoT connectivity over ISM bands. It will typically be deployed in unlicensed parts of the spectrum between 800 and 900MHz,including the 868MHz band in Europe and the 900MHz ISM band in the US.