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Work item:
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K.Small
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Subject/title:
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Small base stations - impact on the overall exposure level
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Status:
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Under study [Issued from previous study period]
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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2024 (Medium priority)
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Liaison:
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-
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Supporting members:
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-
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Summary:
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The use of small base stations has become more common in the current mobile transmitting infrastructure. Small base stations have lower power levels, but they are installed much closer to the users in comparison to macro base stations. This recommendation will consider the overall exposure levels around small base stations in areas accessible to people in comparison with areas around macro base stations.
Small cells are generally considered to cover Medium range BS, Local area BS and Home BS classes. The small cells use much lower power and are much closer to the user. Small cells being nearer to the user use reduced radiated power to and from the mobile phones resulting in reduced total EMF exposure.
Fourth Generation (4G) cellular mobile systems as well as the legacy mobile networks were using the frequency bands in sub-1 GHz and 1-6 GHz band. Fifth Generation (5G) mobile systems, additionally use high frequency band f > 24 GHz to cater to the ultra-high broadband speeds planned for 5G systems. Evolution of mobile networks to 5G will have a new radio access network millimetre wave bands (mmWave).
5G deployments are likely to use much denser and heterogeneous networks with large number of micro base stations (small cells) supplementing macro base stations (large cells) for providing higher capacity in densely populated areas. Such densification of 5G cellular networks will most likely witness deployment of small cells in mmWAve bands on existing street furniture like lamp posts, utility poles, billboards, traffic signals and public structure like gazebos, bus stops etc. Therefore, the impact of small cell Base Stations on overall exposure level is to be closely evaluated in the context of deployment of 5G cellular mobile systems.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2018-05-30 16:44:41
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Last update:
2023-11-28 11:57:08
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