Success Case
Seamless connectivity for up to 4,700 daily users at the Tour Alto building
DAS & Small Cells
Located in the heart of La Défense, Paris’ major business hub, Tour Alto spans 40 floors and 4 underground levels, offering over 59,000 m² of office space and welcoming up to 4,700 daily users. This architectural landmark also faces a major operational challenge: ensuring seamless and high-performing multi- operator mobile connectivity throughout the entire building from the basement to the top floor despite significant technical constraints (height, complex structure, HQE- certified materials).
Cellnex deployed a tailor-made Mobile Inside solution based on a next-generation Distributed Antenna System (DAS) specifically designed to meet the site’s technical, aesthetic, and operational requirements.
A full vertical and horizontal interconnection across all floors and basements, with the main technical hub located on the 4th floor.
An inhouse dedicated technical room that hosts shared infrastructure, enabling neighboring buildings to benefit from the same mobile performance.
Challenge
The building’s operator wanted to anticipate the growing mobile needs of its occupants, eliminate indoor coverage blind spots, and enhance the building’s value in line with a new generation of service-oriented office spaces.
Solution
100% mobile indoor coverage across all working, living, and circulation spaces
Enhanced user experience for all occupants: fluid calls, stable browsing, seamless collaboration
Increased building value for demanding tenants and users
Simplified operations through a neutral, multi-operator “as-a-service” model. A future-proof building ready for tomorrow’s digital uses with 5G-ready architecture
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- 03 Jul 2025
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