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IP and Mobile Trends and Education

 

Author: Marcin Dryjanski

07.2019

Spectrum sharing, resource virtualization, machine learning… – CROWNCOM 2019 conference summary

This year’s CROWNCOM conference was held on 11-12 June, in our hometown – Poznan, Poland – discussing the following topics: machine learning (ML) for spectrum management, spectrum sensing and radio environment maps (REM), spectrum sharing and management, spectrum assessment and valuation. On the other side,  the topics which were covered on special sessions (keynotes, tutorial […]

06.2019

Why Wi-Fi 6 (IEEE802.11ax) will be different than previous Wi-Fis?

The AP schedules the transmission according to the actual needs, and nobody wastes time on waiting and on collision. So, we end-up having the system that: is more robust towards low latency services; is more spectrally efficient; allows for actually use some QoS profiles; and coordinates the use of spectrum.

01.2019

LTE in Unlicensed Spectrum

The “history” of 3GPP system “entering” the unlicensed spectrum regime seems to happened already a long time ago. Tight LTE interworking with WiFi is one way for the MNOs to offload traffic. The other one, discussed within this blogpost, is based on a specialized design of LTE system to be able to cope with ISM/license exempt bands’ special requirements e.g., fair coexistence with other users of this spectrum (e.g. Legacy WiFi).

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01.2019

5 Most Popular Posts From 2018

2018 was a very interesting year for us and technology. We introduced our IoT product “Souly”. 5G entered the normative work in standardization and released the first “version” of 5G. Wi-Fi introduced new security schemes and changed nomenclature. The networking world shifted towards SDN/SD-WAN solutions.

11.2018

3GPP Release-16: Further LTE and 5G NR Enhancements – Part 2 (Study Items)

This post focuses on the selected Study Items that 3GPP has chosen for Rel-16 including: V2X, SON, NOMA, Unlicensed Spectrum Access and beyond 52.6GHz, and more.

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10.2018

3GPP Release-16: Further LTE and 5G NR Enhancements

This year we have seen the rapid standardization of 3GPP Rel-15, 5G-NR, laying the foundation for the first 5G networks. This blogpost, discusses the ideas and enhancements that are currently being worked on for 3GPP Release-16. These enhancements cover not only 5G-NR, but also LTE which is being advanced in parallel.

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08.2018

Wi-Fi Radio Configuration & Measurements

This post discusses selected practical aspects of Wi-Fi systems including: explanation of some parameters and factors that the network performance is impacted by; showing how to configure some of the parameters them using CISCO Wireless LAN Controller; presenting simulated scenarios to show some examples of radio measurements.

07.2018

LTE and 5G Differences: System Complexity

In this post we discuss the complexity that 5G brings and show some examples of this as compared to LTE including: naming in the 5GS architecture, dual connectivity options in 5G, parameters for L1, base station naming, spectrum aspects.

06.2018

5G Interworking Architecture

In today’s blogpost we will discuss how the interworking architecture of the new 5G system with the existing LTE systems looks like. Inter-working between 4G and 5G will play a very important role in the early deployment of 5G system, which will rely on LTE to be the anchor or underlying system. In the standalone (SA) deployment of 5G, good inter-working with the LTE system to facilitate inter-RAT mobility between the two RATs will be required.

05.2018

LTE and 5G Differences: Function Decomposition Between RAN and CN

Let’s take a quick look at some of the differences between LTE and 5G in the area of functional splits between RAN and Core Network. We show and discuss high level splits of selected functionalities of the main “network functions/nodes” in both systems (discussing it from the 3GPP RAN3 WG perspective) from which we can make some conclusions on the differences between those two systems.

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