A question to mobile operators: You have just acquired the rights to deploy an indoor system inside a large building and are about to deploy 50+ antennas inside the building. Now, would you like to add a full LTE cell to each antenna? That’s right… would you like a complete LTE single-sector base station where you were planning to install just an antenna? What about two LTE base stations where you were planning to install just an antenna?
Adding an LTE (or 3G) cell in the macro network is expensive, very expensive, and difficult as h*$%! So, rather than getting more cell sites, operators try to increase capacity by buying more spectrum (billions), and improving spectral efficiency (even more billions). As frequent readers of this blog know, SpiderCloud offers a way to add a massive amount of capacity indoors – using scalable small cell systems.
One of SpiderCloud’s customers recently asked our system engineering team to estimate the capacity of a SpiderCloud dual-carrier LTE system. We have a rather sophisticated modeling tool that accounts for interference between small cells and macros, generates randomized distribution of users and more. So, for this analysis, we took an 180,000 ft2 4-floor building. Based on the building’s floor plans, 24 radio nodes were sufficient to provide coverage, and this system was capable of delivering more than 2.5 Gbps of throughput, at less than 50% loading!