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Centralized RAN

Venues such as stadiums, concert halls and railway stations concentrate many people in a small area. As well as supporting the high traffic demand, operators must also curb the high interference that such large numbers of users can cause.

Nokia Centralized RAN software uses clusters of LTE base stations to turn the interference into useful traffic. The base stations use uplink signals from multiple cells’ base stations to cancel the interference and select the best signals from 12 receivers. Network configuration is optimized every millisecond for each mobile device to match actual interference, enhancing LTE upload speeds.

  • Maximizes spectral efficiency and use to give more than 200 percent average uplink throughput gain
  • Eliminates cell edge degradation to give ten-fold increase in cell edge uplink speeds 
  • Works with all existing R8 LTE terminals and Nokia equipment, making it easy to deploy

Centralized RAN creates liquid capacity for mass events where the uplink environment is limited, enabling ultra dense cell deployments. It uses the LTE-Advanced capability of Uplink Coordinated Multipoint (UL CoMP) to turn interference into useful traffic. With this, we are able to double average uplink capacity and provide up to ten-fold cell edge throughput gains.

And since the mobile is not competing to be heard with other mobiles, it uses up to 33 percent less power for longer device battery life.

Nokia deployed Centralized RAN with LG U+ to satisfy the uplink data demand at Busan baseball stadium. Learn more about our success.

Nokia Networks and Ooredoo demonstrate how uplink capacity can significantly increase with Centralized RAN. During large events in stadiums, there can be more uplink than downlink traffic as people upload pictures and videos. Nokia's Centralized RAN links multiple LTE base stations to work directly with one another and doubles the average uplink capacity across a cell. Read more

Elisa and Nokia Networks have jointly conducted successful tests of Centralized RAN under extreme load conditions at the packed Hartwall Arena in Helsinki. Read more

TeliaSonera is moving fast into virtualized operation, says vice president Mats Svärdh. In August it worked with Nokia to offer virtualized radio access at Metallica’s concert in Sweden. Read more

Nokia Centralized RAN featured by CNBC International. Watch video


Leading lights
Centralized RAN is the Winner of the Light Reading Leading Light Award Winner in the Category of Best New Product (Mobile). The Leading Lights program focuses on next-generation communications technology, applications, and services, and rewards the companies that have performed well during the past year.


Centralized RAN is the Winner of the 2014 2014 CTIA E-Tech Award Winner on the Category of Wide Area Network – RAN. Representing the most innovative and cutting-edge emerging mobile services, solutions and technology, the E-Tech Awards finalists feature the best in areas such as network equipment, M2M and the Internet of Things and the cloud.


Runner up for Pipeline COMET Award in the category of Technical Developments. This award is designed to provide objective, target-market validation of technological advancements by those that use them to deliver the world's most advanced communications and entertainment services.


Joe Hoffman, Practice Director ABI Research, visited the Nokia Networks Solution Experience Center at our facilities in Karaportti, Finland, and declared “Everything is awesome . . . when you have Centralized RAN!” Joe gives a nod to The LEGO Movie as a metaphor to share the improvements he saw in our C-RAN solution. Read more