Network optimization

Meet coverage, quality and service performance objectives

Network optimization consists of two main parts: initial and continuous optimization. Initial optimization occurs during network implementation in order to fully prepare the network for the launch. The aim is to ensure that the agreed objectives for coverage, quality and service performance are met. These objectives are often defined as target values for sets of key performance indicators (KPI) that measure network performance and the quality of end-to-end services (QoS).

Continuous optimization is an integral part of network operations since networks are constantly changing:

  • New network elements are regularly put into operation
  • New services are introduced and coverage is extended
  • The user traffic load varies in both the short and long term

Continuous optimization can be seen as a cyclic process. First, the performance of both the network and the end-to-end services is assessed and the necessary data is collected. Next, the data is processed and analyzed, and finally, corrections and network changes are decided upon and implemented.

The input data sets are collected from various sources ranging from statistical counters generated in the network elements to measurement data obtained during drive and walk tests. Due to the importance of keeping OPEX under control, solutions for data collection must comprise reliable measurement systems that

  • Are efficient and productive
  • Minimize errors
  • Are easy to use and low maintenance
  • Deliver rich sets of data
  • Provide automatic data processing and accurate analysis

Expertise in optimization

  • Macro network enhancements: carrier aggregation

    The popularity of app services among smartphone users poses a serious challenge to mobile operators: data consumption is soaring; and with an expected 10-fold increase in the next 5 years, investments to merely transfer the sheer amount of data are inevitable. So, how can network operators best address these increasing network capacity and performance demands? Carrier aggregation is one option.

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  • Macro network enhancement: cell sectorization

    The various macro network enhancements available today offer a cost-efficient and smart approach to increase the capacity in mobile networks. The blog post looks at yet another antenna approach to optimize mobile network capacity: higher-order sectorization of base stations, commonly referred to as 6-sector sites.

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  • Macro network enhancement: antenna tilt optimization

    Antenna tilt optimization is a cost-efficient and smart approach to increase the capacity in mobile networks. Today, operators have to focus more and more on data capacity and network densification. Also, particularly in urban and dense urban environments, macro cells need to be smaller and coverage needs to be limited. One important method to achieve this is antenna downtilting.

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  • Macro network enhancements: 4x4 MIMO

    The various macro network enhancements available today offer a cost-efficient and smart approach for capacity increase in mobile networks. This blog post discusses higher order MIMO antenna configurations, particularly 4×4 MIMO.

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  • HetNets and small cells

    The series “HetNets/small cells” explains how indoor deployments help operators meet the exponentially growing data demands in mobile networks in the coming years. In this overview, we’ll deliberate the pros and cons of different types of indoor deployments, such as distributed antenna systems (DAS) and small cells, and outline the indoor deployment process as the basis of the series’ next posts.

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  • MIMO 4x4 testing

    Operators are counting on the LTE feature 4x4 MIMO to meet the incessant need for more capacity that subscribers demand because they are jamming networks with data traffic. With the increasing commercial availability of 4x4 MIMO capable smartphones, operators can now exploit the higher spectral efficiency and capacity of this antenna technology.

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Solutions for optimization

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