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World's first RISC-V multi-mode LTE chipset for 450MHz
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www.eenewseurope.com, May. 29, 2024 –
GCT Semiconductor has developed the first multi-mode LTE chipset for the 450MHz spectrum, using two RISC-V cores.
The GDM7243SL developed by GCT is the world's first highly integrated multi-mode LTE chipset capable of operating down to 450MHz and 380MHz in Cat 4, Cat 1bis, Cat-M1, Cat NB1/NB2 and up to 3.8GHz for non-terrestrial networks (NTN) for satellite connections.
With dual receive paths and low-band dual transmitters, the GDM7243SL uses 2×2 MIMO diversity and higher power to maintain connectivity even in challenging conditions, such as underground or remote deep forests that do not have access to traditional terrestrial networks.
The RISC-V dual-core design has integrated RAM, although they haven't specified the amounts and optional Flash, allowing customers to create fully integrated devices without requiring an external processor.
The monolithic baseband and radio features tuning from 380MHz to 3.8GHz with multiple ports available to reduce external RF components controlled by one 400MHz RISC-V core. The other 400MHz core supports operating systems including Linux, OpenWRT, PRPL and Zephr, and there is also a sensor hub with internal 32-bit controller for interfacing with IoT sensors.
GCT has over two decades of experience in 450MHz applications and the system on chip is optimized for device deployments in private, mission-critical infrastructure, and public utility networks around the globe, enabling true global coverage over land, sea, and air.
"450 MHz device deployments are already in millions of devices worldwide and serve critical communications needs in safety and emergency services, as well as remote healthcare facilities, schools, and more," said John Schlaefer, CEO of GCT. "With this new chipset, GCT is fully ready to support the continued growth of 450 MHz, 410 MHz, and 380 MHz networks worldwide."
As 450 MHz deployments are expected to grow to the tens of millions, GCT is using its deep expertise in both the 450 MHz space and the industrial sector to enable 450 MHz Alliance members to address new markets and requirements.
"We're excited to have GCT continue its support of the 450 MHz Alliance members and ecosystem," said Gösta Kallner, Executive Chairman of 450 MHz Alliance. "Bringing a new LTE chipset to market during a time when 5G has taken the spotlight shows true leadership and understanding of the 450 MHz market as it enters a period of strong growth."
The GDM7243SL is expected to sample to customers in the fourth quarter of this year.