In Building Wireless Systems 12/2/2014 Josh Gerst, Vice President – Engineering RF Connect, LLC

RF Connect is a DAS Integrator – Engineer and deploy solutions for Commercial, Wi-Fi, Public Safety, Wireless Backhaul – Use multiple OEM products for best technical solution, most efficient installation, best cost model.

Frequency Bands Cellular “commercial wireless networks” – 700, 800, 850, 900, 1900, AWS (1700/2100), 2500 MHz Public Safety and 2-way radio wireless networks – VHF, UHF, 700, 800, 900 MHz Wi-Fi networks – 2.4, 5.0 GHz primarily

The Issues Network Capacity Network Coverage End User Habits High Capacity Venues Public Safety Communications Wi-Fi Networks

Network Capacity iPhone introduced June 29, 2007 with a 5 year exclusive agreement with AT&T During the next 5 years with the new smartphone segment AT&T’s network data traffic increased 60,000%!

Network Capacity Most Distributed Antenna Systems (DAS) are driven by the capacity needs of the Commercial Wireless Systems (AT&T, Verizon, Sprint, T-Mobile).

End User Habits It is estimated that more than 80% of mobile phone usage occurs indoors

End User Habits Providing these highly active users dedicated capacity in their densely populated non- mobile in-building usage areas frees up capacity in the outdoor macro network for mobile users.

High Capacity Venues Stadiums Hospitals Airports Office Buildings Subways Areas of high population and high usage

High Capacity Venues Unique issue: – More demand for UpLink Data usage than DownLink Data usage

Public Safety Communications NFPA 72 allows for each local AHJ (Authority Having Jurisdiction) to adopt all or parts of the fire code, (including in-building communications systems and testing before granting a Certificate Of Occupancy. Demonstrate First Responder 2-way communications throughout building.

Public Safety Communications Public Safety DAS are coverage solutions not capacity related

Wi-Fi Wi-Fi APs are usually installed parallel to the DAS as it has different channel allocation and reuse in the unlicensed spectrum.

In-Building Solutions Distributed Antenna Systems – Passive distribution systems Off air repeater Passive 50 Ohm coax distribution network – Active distribution systems Hybrid Fiber/Coax (actives in IDF closets) Fiber to the antenna (actives in ceilings) Small Cells – “Mini” base-station feeds a small area – SON (Self Organizing Networks) will allow Small Cells to overcome some handoff topology issues and would allow a network of small cells to be put in a building with minimal network optimization needed

P2P and P2M Point to Point Point to Multipoint Wireless data backhaul solutions

Design Process Define Requirements Model building Link Budget Propose Solution Layout Passive Antenna Network Propagation Refine Design

Link Budget Gain/Loss for Downlink (Core to User) and Uplink (User to Core) Free Space Path Loss is Inverse Square Solution as shown in Link Budget defines average antenna radius Passive, Hybrid Fiber/Coax, and Fiber to the antenna all have different design issues.

Design Modeling Tool iBwave Design

Some OEMs in the DAS space Corning Commscope Tyco Electronics SOLiD JMA CSI ADRF Zinwave Axell Bird Wilson Electronics ALU – Small Cell Ericsson – Small Cell And Others!

Corning Hybrid Fiber/Coax – MA2000 TSX – HX mid power – GX high power Fiber to the antenna – ONE Solution

Commscope Hybrid Fiber/Coax – ION-B – ION-U – ION-M high power Structured Cabling to the antenna – ION-E

TE Fiber to the antenna – Fusion Digital hybrid fiber/coax – Prism

Questions? Thank you!