A more flexible NB-IoT modem based on small, low-power CPU/DSP processors, a few targeted hardware accelerators, dedicated power management hardware, and tight integration between the baseband and RF transceiver can help achieve the required power and area goals.”
Aside from hardware IP decisions, it is important to architect flexible power domains into the baseband/RF solution in order to minimize the number of elements within the NB-IoT modem that are required to be always-on.
Small code size is also important for achieving low power consumption, specifically by reducing the number of accesses to instruction memory, Collins said.
“For Narrowband IoT, as well as the competitive technologies, it’s all about low power — as low as you possibly get it, especially being extremely low power when you’re asleep,” said Gerard Andrews, product marketing director for audio/voice IP at Cadence.
Welcome to the world of Narrowband IoT (NB-IoT), a 3GPP standard (also known as Cat-NB1 and Cat-NB2) with reduced bandwidth and tighter power consumption requirements.