Mobile data traffic is increasing continuously and will boom significantly over the next 3-5 years with 5G, putting MNOs under CAPEX pressure.
Higher frequency bands for 5G mean more challenges for coverage deployment, especially in dense urban areas where capacity will be needed and strict EMF limitations apply.
If small cells are described as a good solution for capacity improvement, many drawbacks limit their deployment :
Seamless integration to environment. Can fit to any glass or wall.
Antenna located at lower height enable better network densification in dense urban areas.
Limited power enables reduced EMF levels.
Fiber & power from buildings. No need for outdoor fiber installation.
Installation from indoor prevents need for scaffoldings or excessive permits.
Reduced electronics and lighter enclosures (IP44).