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Ericsson swaps: Maximizing spectrum utilization

An Asian operator needed a large, customized network with many local alterations. Ericsson delivered end-to-end customized site solutions to swap out a legacy vendor’s LTE, clearly improving spectrum utilization.

Engineer at work

Ericsson and the operator utilized the Golden Cluster, a partnership whereby customers give us a limited part of the network to analyze data, test some areas and deploy findings on a larger scale. This showed Ericsson’s platform to be superior to the legacy vendor’s. Ericsson Radio System also helped to scale network and business.

We also activated Dynamic Secondary Cell Selection (DSCS), which extends Carrier Aggregation (CA) between secondary cell frequency layers and cells within a layer. This allowed more than three carrier frequencies to support CA at a single site.

The outcomes:

  • 17,000 sites swapped or newly deployed 
  • Improved performance, utilizing LTE-Frequency Division Duplex (FDD) and Time Division Duplex (TDD) coordination features
  • Inter-Frequency Load Balancing (IFLB) resulted in over 40 percent downlink (DL) throughput increase in busiest cells
  • Inter-eNodeB Carrier Aggregation (CA) enabled FDD/TDD CA between different sites – avoiding site relocation and reducing network build time
  • Self-Organizing Network (SON) automated configuration, secondary cell selection reduced opex and accelerated migration to our eNodeB – a unique Ericsson capability