This blog is by Sukhpreet Sandhu at Nokia Siemens Networks.
We’ve all seen them – radio masts that seem to sprout new antennas and modules daily. Technologies and bandwidths proliferate, squeezing the available space. As it becomes scarcer, operators need compact radio solutions if they are to use this resource efficiently and effectively.
The trick is to maximize performance on the sites you have, with powerful, compact solutions that offer easy installation. Radio modules that can be sited either indoors or outdoors would be another bonus, making it easier to find sites for them.
What we’ve found in working with our customers is that a modular design allows operators to start with small configurations and scale up as markets grow. Imagine you need a base station for three bandwidths – 900, 1800 and 2100 MHz. Based on the traditional remote radio heads available from most vendors today, you would need 11 modules, with the system modules located in a separate cabinet and the rest of the modules in the mast.
To address that challenge, we designed the Nokia Siemens Networks Flexi Multiradio solution to be the smallest software-defined, multi-technology, high capacity base station. So in the scenario above, the Flexi, a 3-sector base station, would have five RF modules – two system modules and three radio modules. And as the market grows and more capacity is needed, software upgrades can be download easily, sub-modules can be added, and more modules chained. Because it is highly compact and tightly integrated, Flexi Multiradio 10 Base Station is also very energy efficient, saving even more costs.
As a bonus, no additional cabinet or shelter is needed. In his January 2013 report, Nokia Siemens Networks 3GPP Radio Access Network, Edward Gubbins, senior analyst for Mobile Access Infrastructure, Current Analysis, elaborates: “The Flexi family is also flexible in that it can be deployed indoors or outdoors in either traditional frame architecture or in a distributed formation. Flexibility also extends to the radio technology, as both the Flexi Multiradio and the Flexi Multiradio 10 support an operator’s migration from GSM, through W CDMA, to LTE – and beyond, given the 10’s planned support for LTE-A.”
What’s your experience been in your market? Share your thoughts with us by replying below.
For more information on the Flexi Multiradio 10 Base Station, see:
• “Nokia Siemens Networks 3GPP Radio Access Network“, by Edward Gubbins, senior analyst for Mobile Access Infrastructure, Current Analysis, January 2013