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Enhanced radio access and data transmission procedure s facilitating industry-compliant machine-type communications over LT E-based 5g networks

Research output: Contribution to journalArticle

Massimo Condoluci, Mischa Dohler, Giuseppe Araniti, Antonella Molinaro, Joachim Sachs

Original languageEnglish
Pages (from-to)56-63
Number of pages8
Issue number1
Publication statusPublished - Feb 2016


King's Authors


Priority alarm messages for MTC in industry applications require guaranteed delays of a few dozen milliseconds only, with super-critical applications even calling for below-10-ms access. With the best state-of-the-art cellular systems barely able to meet below-50-ms delays, in this article we propose some important improvements to the 3GPP MTC access procedure allowing a significantly performance boost for alarm messages. Notably, the first method encompasses an SMSlike approach where the alarm is transmitted in a secure and backward-compatible form over the connection-establishing access channel, thus allowing the data transmission to be terminated significantly earlier and to support emerging critical alarm messages. The second method uses a secure and previously agreed sequence of random access codes to convey super-critical alerts within a few milliseconds, and is thus able to support emergency alarm messages. Both methods not only achieve control-compliant access delays but are also highly energy efficient, thus allowing long battery lifetimes and hence quicker uptake by the industry.

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