Real time mimo_lte_test_bed

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This document describes a real-time MIMO-LTE test-bed developed by Telefónica I+D to test LTE technology. The test-bed includes a radio frontend module, communications and control module, and system processing module. It allows for demonstration of basic LTE operations and analysis of resource distribution and latency. Future work will focus on implementing advanced LTE technologies on a new hardware platform.

Technology

A REAL-TIME MIMO-LTE TEST-BED Primitivo Matas, Quiliano Pérez, Ana Villanua and Francisco Javier Lorca LTE group Telefónica I+D, Spain

SYSTEMARCHITECTURE RADIO FRONTEND MODULE (RFM) COMMUNICATIONS AND CONTROL MODULE (CCM) SYSTEM PROCCESING MODULE (SPM)

TEST SETUP BASEBAND MODULE Test setup baseband module

CONCLUSIONS I ,[object Object],[object Object],[object Object],[object Object]

New HW real-time platform ,[object Object]

LTE networks get more mature and new terminals of different capabilities are being introduced. 3GPP just defined the new LTE-A UE categories to support terminals with peak data rates of up to 450 Mbps in the downlink. This white paper provides an overview of all existing LTE/LTE-A UE categories and presents the new Release 11 capabilities that have just been standardized. Furthermore it describes key scenarios and use cases such as the support for downlink carrier aggregation with 3 downlink carriers with up to 60 MHz of total bandwidth.

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3GPP RAN plenary meeting #84 in Newport Beach, US, in June 2019, discussed the content of 5G New Radio (5G-NR) Release 17 standardization. One of the defined key areas for 5G enhancements for 5G enhancements is NR Broadcast / Multicast (BC/MC). Important use cases for this technology are NR Vehicle-to-Everything (V2X), NR Public Safety and NR Non-Terrestrial Networks (NTN). This white paper proposes a mechanism of link adaptation in coordination with higher layer Error Correction. A detailed description and system-level simulation-based evaluation of the proposed scheme is provided in this White Paper.

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The System and Service Aspects – Architecture group (SA2) of 3GPP has a dedicated study item for the study of the next generation networks. It is expected that this work will form the basis of the system architecture for the future 5G networks. Within SA2 group, regular meetings and discussions are held to discuss the progress of this study item. NoMoR Research follows these activities. This report presents a condensed summary of the earlier mentioned study item, including the latest updates from the most recent meeting held in Vienna, Austria from 11th – 14th July, 2016.

Spectrum Toolbox includes a wide set of bands ranging from 450MHz up to 100GHz with licensed and unlicensed spectrum, covering different licensing options, as well as different access schemes, Bandwidth aggregation mechanisms, duplexing and RATs. On top of that, 5G requirements target tight integration of all these elements to unify the operation of the next generation mobile systems and to provide the possibility to adapt to different use cases and scenarios that will further complicate the overall landscape.

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Nomor Research contributed extensive system level simulation results to the evaluation group of the 5G-PPP consortium as an independent source. The evaluation has been submitted to 34th meeting of the ITU-R Working Party 5D confirming that the 5G requirements of 3GPP New Radio air interface are indeed fulfilled. With the presentation of the evaluation reports at the ITU-R Working Party 5D meeting held in Geneva, Switzerland, in February 2020, the independent evaluation activity has officially been closed. The system level simulations performed by Nomor Research GmbH are only a part of the overall evaluation of the 5G NR air interface. A summary of the simulation-based evaluation based on the 5G NR RealNeS system simulator is being provided in this white paper.

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