Sign in Subscribe

NR-Measurement Report

Last updated on 


The NR (New Radio) Measurement Report is a crucial technical procedure in 5G networks that involves the User Equipment (UE) providing feedback to the network about the quality of the radio signal and neighboring cells. This information is essential for the network to make informed decisions about handovers, resource allocation, and overall network optimization. Here's a detailed technical explanation of the NR-Measurement Report:

Measurement Trigger:

  • The NR-Measurement Report is triggered by various events or conditions, such as:
  • Timer expiration: The UE may periodically perform measurements and send reports based on configured timers.
  • Event-based triggers: Specific events, such as a signal strength threshold breach or the detection of a suitable neighboring cell, can trigger measurements and reports.
  • Network request: The network may request measurement reports from the UE to gather information about the radio environment.

UE and Network Roles:

  • The UE is the mobile device (e.g., smartphone, IoT device), and the network is represented by the gNodeB (5G base station) and the core network elements.

Measurement Configuration:

  • Before measurements can occur, the network configures the UE with measurement configuration parameters. These parameters specify what type of measurements to perform, when to perform them, and the reporting criteria.

Measurement Types:

  • The NR-Measurement Report can include information about various types of measurements, including but not limited to:
  • Signal strength: Measurements of signal power or quality from the serving cell and neighboring cells.
  • Timing advance: Measurements related to the timing of signals from neighboring cells.
  • Reference signals: Information about reference signals used for cell identification.
  • Cell identity: Identification of neighboring cells and their respective physical cell identities.

Measurement Period:

  • The UE performs measurements based on the configured measurement period. For periodic measurements, the UE collects data over a specific time interval.

Event-Based Measurements:

  • Event-triggered measurements occur when specific conditions are met. For example, if the signal strength of a neighboring cell exceeds a predefined threshold, the UE may perform measurements and send a report.

Measurement Report Generation:

  • When measurements are triggered or during scheduled measurement periods, the UE collects relevant data and generates a Measurement Report.

Measurement Report Contents:

  • The Measurement Report includes information about the measured values, such as signal strengths, timing advance, and cell identity of the serving cell and neighboring cells.
  • It may also include information about the UE's radio conditions, such as interference levels.

Report Format:

  • The Measurement Report is formatted according to 3GPP (3rd Generation Partnership Project) standards and is transmitted using appropriate signaling protocols and message formats.

Report Transmission:

  • After generating the Measurement Report, the UE sends it to the network using the established radio connection. The report may be sent via dedicated control channels or part of a scheduled report.

Network Utilization:

  • The network processes the received Measurement Reports to assess the radio environment and make decisions, such as:
  • Handover decisions: If a neighboring cell offers better signal quality, the network may initiate a handover.
  • Resource allocation: The network may allocate resources more efficiently based on the reported conditions.
  • Network optimization: Information from reports helps in optimizing cell configuration and interference management.

Continuous Measurement:

  • The Measurement Report procedure is continuous, ensuring that the network has up-to-date information about the UE's radio conditions and the neighboring cell environment.

In summary, the NR-Measurement Report is a technical procedure in 5G networks that enables the UE to provide feedback to the network about the radio conditions and neighboring cells. This feedback is crucial for network optimization, handover decisions, and efficient resource allocation, ultimately contributing to the quality and reliability of 5G network services. The report generation, transmission, and processing are standardized to ensure interoperability between different network elements and UEs.