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R&M specialist magazine CONNECTIONS no. 64

R&M specialist magazine CONNECTIONS no. 64

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Focus<br />

Cabling Megatrend 5G Premises – But How?<br />

With Macro Cell Upgrades to Small Cells<br />

050.7296<br />

5G promises to change the role of cellular phone networks. The fifth generation will<br />

create new economic opportunities and influence social development. But first, providers<br />

will have to set up their macro cells for 5G and create infrastructures for small cells.<br />

New solutions for fiber optic cabling are needed.<br />

Five factors are among the most important<br />

driving forces behind the transition to 5G:<br />

– growing global demand for mobile services<br />

– the continuous development of cellular<br />

technologies<br />

– the emergence of new use cases<br />

– the development of global standards<br />

– the availability of new frequency bands<br />

for 5G<br />

The mini radio cells (small cells) will play a<br />

decisive role in the gradual development of<br />

mobile networks from the predominant 4G/<br />

LTE technology to 5G. They can provide the<br />

high-bandwidth, low-latency connections<br />

required for the potential 5G use cases.<br />

Unique position<br />

Mobile network operators are in a unique<br />

position. They can use their existing networks<br />

and make use of collocated sites for new,<br />

non-standalone 5G sites and expanded 4G<br />

sites. To do so, they need to equip existing<br />

4G macro-cell sites with new and additional<br />

infrastructure elements.<br />

First, network operators will expand their<br />

4G macro-cell locations. These can then be<br />

upgraded with additional 5G small cells in the<br />

form of underlying networks. This enables,<br />

among other things, targeted, local signal<br />

coverage as well as shorter latency times<br />

with the help of the small cell radio heads and<br />

correspondingly compact antenna systems.<br />

Important technical developments for this are<br />

the «massive active multi-input multi-output<br />

antennas» (MIMO) and «beamforming» features<br />

of modern 5G antennas using phase<br />

array technology. Together, these innovations<br />

offer improved network coverage and transmission<br />

capacity as well as an optimization<br />

4 | <strong>CONNECTIONS</strong> 04|2023–<strong>64</strong>

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