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    Field measurements in mobile networks for regulators

    Field measurements are very valuable to regulators or national regulatory authorities (NRAs), since they provide data required to comply with regulations, investigate customer complaints, enhance service quality for consumers, promote healthy competition among operators and facilitate network expansion for the telecommunications sector. The scope, scale and tools used in field measurements differ widely from NRA to NRA based on their needs.

    National regulatory authorities

    NRAs oversee and regulate the telecommunications sector within a country’s borders. NRAs develop and enforce regulatory policies, issue licenses to telecommunications service providers and ensure compliance with established regulatory standards.
    NRAs handle consumer complaints and make sure that telecommunications services are available to everyone within a country. They also monitor and control radiofrequency spectrum usage by assigning and managing frequencies to prevent radio services from interfering with one another.

    Field measurements: The most precise view of a network

    Field measurements provide the most reliable coverage and performance data for mobile networks at a specific location and time. The measurements are conducted under real geographical and load conditions for a precise depiction of the mobile network under study.

    Field measurements can provide different levels of information to NRAs based on what they need. Realistic coverage information can be derived from scanner measurements, while data transmission speed measurements help NRAs understand spectrum usage and describe network performance under realistic loads. Finally, user experience in newer, more demanding applications, services and content can only be measured with more advanced quality of service and quality of experience (QoS/QoE) indicators.

    Spectrum validation

    The 5G rollout made spectrum clearance important. Mobile network operators (MNOs) need to use new bands that previously contained other services. Field measurements characterize the radio environment by identifying external interference sources in a frequency band, so that they can be effectively found and eliminated. The measurements can also help identify which of the growing number of private networks are a source of interference.

    Coverage measurements

    The spectrum obtained by an MNO needs to be managed and used in line with licensing obligations. Obligations may include advanced technology requirements, such as deploying LTE or 5G in sparsely populated or rural areas.
    Field measurements with a scanner present a picture of the technologies, frequencies and bandwidths that are actually deployed. Scanner measurements can verify the reliability of the mobile coverage data from MNOs and validate compliance with license obligations. The data can also identify interference and collisions between MNOs, particularly in border regions.

    Radio coverage can be classified into multiple predefined categories with signal level and/or signal quality thresholds. Coverage categories are commonly represented on a map by aggregating individual results across geographical bins.


    Even though scanner measurements provide realistic coverage information, they do not explain how devices in the network utilize the spectrum or the quality of the user experience.

    Data transmission speed measurements

    Data throughput measurements enhance understanding of spectrum usage because the results are influenced by the assignment of radio resources under realistic loads in mobile network cells. The measurements reveal how a spectrum (technologies and frequencies) is assigned to users and whether features, such as carrier aggregation, are activated to provide users with additional capacity.

    Large-scale and statistically representative data throughput measurements help inform consumers and let them make informed purchasing decisions. The measurements foster a healthy competitive environment and encourage MNOs to upgrade and improve mobile networks.


    Measurements of QoS and QoE

    The internet has evolved to include ever more demanding applications, services and content, which impose greater demands on mobile networks and drive their development. Higher data rates are no longer the primary requirement for QoS and QoE. New services require reliable transmission, low latency and low jitter. Data traffic in mobile networks is no longer driven just by people, but by new device, remote control and automation use cases with specific performance needs.
    Telephony has also undergone significant changes. Circuit-switched (CS) voice calls are no longer dominant. VoLTE technology is preferred in LTE networks. 5G NR networks will further expand in the future and VoNR will continue to grow. Consumers are also increasingly making voice calls with OTT VoIP applications such as WhatsApp, Microsoft Teams or Signal and there is a growing trend towards video calls.

    Popular and common services such as video streaming, browsing and web content delivery, social media and messaging should also be measured to provide a complete picture of the quality of experience. The growing use of cloud gaming, XR, industrial automation and remote control are making services more interactive and real time, making it more important to measure data latency in line with protocols and traffic patterns for such services.

    Network complexity and consumer traffic is making field measurements of coverage, CS telephony and data rates insufficient. Regulators seeking to inform the public about mobile network developments and QoE are expanding field measurements to include a broad range of QoS/QoE measurements.

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