A Dual-Mode NB-IoT and EC-GSM RF-SoC Achieving -128-dBm Extended-Coverage and Supporting OTDOA and A-GPS Positioning.

Matthias Korb,Samuel Willi,Benjamin Weber,Harald Kroll, Andreas Traber,Stefan Altorfer,David Tschopp,Jürgen Rogin, Edwin Dornbierer,Mauro Salomon,Stefan Lippuner,Lianbo Wu,Qiuting Huang

Proceedings of the European Solid-State Circuits Conference（2018）

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摘要

An RF SoC is presented that supports both narrow-band cellular IoT standards. For LTE NB-IoT the measured sensitivity is -127.8dBm in EC mode, -116dBm w/o repetitions. For EC-GSM it is -128.9dBm in EC and -111.3dBm in legacy modes. Current consumption is 44mA per cell attach and 3uA during deep sleep. A-GPS and OTDOA are supported for positioning, as are DCXO and sawless Rx and Tx, which help pare part count and PCB footprint for typical IoT modules.

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关键词

RF-SoC,NB-IoT,EC-GSM,A-GPS,OTDOA

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