LimeSDR QPCIe

The LimeNET Base Station integrates a LimeSDR-QPCIe with a powerful 3.5GHz Intel Core i7-6950X host, along with power amplifiers and duplexers, to provide everything you need to set up your own cellular network — all in one compact package.

Lime’s second-generation field programmable RF (FPRF) transceiver IC covers all the way from 100kHz to 3.8GHz, with 2x2MIMO and extended functionality.

Lime Microsystems fully open source solution for PA linearisation based on adaptive digital pre-distortion (ADPD), delivered as FPGA IP and host software.

"The open software/hardware helps me to understand and utilise all the features that [the LimeSDR Mini] has," explains Kis. "The development time for the limeSNA was about 8-16 hours thanks to the examples and the open source libraries."

"The most important aspect for amateur use of SDRs is that the driver software and toolchain, and the device’s capabilities, are open-source and well-documented," explains BATC chair Dave Crump. "The LimeSDR wins in that it is generally open source, with all the documentation online."

The creation of Andreas Eversberg, Osmocom-Analog - built out of a sense of nostalgia, he explains - allows vintage analogue cellular hardware to live again, connecting to a LimeSDR or LimeSDR Mini equipped PC-based base station.

"I find the ability to modify and look at the source code to be really valuable," explains Carl Michal of his experiments with the LimeSDR in NMR spectroscopy. "I've learned a lot from tinkering with the LimeSDR that I'm sure I wouldn't have with a proprietary system."

"I plan to implement the spectrogram accelerator on a LimeNET Micro and distribute it via LimeNET Store," says developer Gaspar Karm of his effort to implement a hardware-accelerated spectrogram on the LimeSDR family's field-programmable gate array (FPGA) chip.

What do you get if you combine the Raspberry Pi with the LimeSDR Mini? If you're Sam Machin, Andrew Back, and colleagues, you get 16 rapidly-deployable GSM base stations for use at Electromagnetic Field 2018, a three-day event held in the middle of a field every two years.

A project which has seen an LMS7002M-based LimeSDR software defined radio installed on the International Space Station to map and monitor global radio frequency spectrum usage, MarconISSta is already showing interesting results from its early data.

"The final goal is to have a generic satellite receiver that is easy to configure to a new satellite or protocol," project originator Lucas Teske explains of the Open Satellite Project and its open-source weather satellite software.

Evariste Coujard's experimentation with a UNIX-like "KISS" DVB transmission pipeline formed the basis for a self-contained, battery-powered Raspberry Pi and LimeSDR Mini based DVB transmission system.

As of late 2019 anyone in the UK can obtain a licence from Ofcom to operate their own private or community LTE network via Shared Access spectrum. In the short video below we show how this is made easy using a CrowdCell that is based on Lime’s field…

Ofcom has made prime mobile spectrum available in four bands via shared access licences which are low cost and straightforward to apply for.

Having provided the general-purpose processing technology at the heart of the LimeNET CrowdCell, Gigabyte is now going to market with a fully-supported ready-to-deploy implementation of the ultra-low-cost software-defined small-cell system powered by Lime Micro's LMS7002M field-programmable radio-frequency IC technology.

"The ME1130 training kit is a versatile system that can be configured to work as an offline system for simulation or as a real-time system for over-the-air transmission and testing," says DreamCatcher of the training kit, which features a LimeSDR USB and LimeSDR Mini for base station and spectrum analysis operations.

"The TIP community has had a significant impact on opening up telecom networks to lower costs, increase innovation, and help operators extend the benefits of high quality connectivity to more communities across the world," says Tenorio. "As Chair I will champion continued innovation and the opening up of supplier ecosystems to more competition."

"We need a new architecture for applications that changes the fixed, hierarchical client/server model," says Armani. "We need to build a larger, faster cloud where billions of devices at the edge can participate as either clients or servers, and provide services directly for one another. We need the edge cloud."

Free and open source package includes LTE Release 8 support, selected LTE Release 9 features, and full compatibility with Lime Microsystems' LimeSDR family of open software defined radio (SDR) hardware.

Describes the combination of Lime Microsystems' LimeSDR Mini and a Raspberry Pi single-board computer as "excellent for this type of research," proving that software defined radar projects "can be built at an affordable price at an amateur level without expensive radios and convoluted analogue gear."

"Opportunities for all, regardless of whether an entity is interested in fixed or mobile, 5G, or another technology," says FCC Commissioner Michael O'Rielly of the ruling, which brings additional 5G frequencies within range of LMS7002M-based devices including the LimeSDR and LimeNET families.

Presentations available from the first day of the event include a look at the addition of support for Lime Microsystems' popular open LimeSDR devices, via the open source Lime Suite software, to the OsmoTRX project.