R&S®ROMES4 Drive Test Software

Mobile coverage and QoS measurements in wireless communications

Applications

Automatic analysis and pinpointing of trouble spots by means of the R&S®ROMES4NPA network problem analyzer

The sheer volume of recorded data makes individual and manual analysis impossible. The data is therefore analyzed by R&S®ROMES4NPA, which then outputs a list of all the detected trouble spots and displays them on a mapusing Google Maps or OpenStreetMap. Maps that have once been loaded are then also available offline. In addition, R&S®ROMES4NPA indicates the cause of the problem.

R&S®ROMES4 Drive Test Software Applications

The easy-to-use interface guides the user through the process, from reading in the measured data (from one or more drive tests) and selecting the analysis criteria to retrieving the automatically generated list of trouble spots. This list can be processed in different ways:

  • Right-clicking a problem automatically opens R&S®ROMES4 and positions the replay of the measurement file just ahead of the trouble spot in question so that the user can perform a detailed check if required
  • Automatic generation of printable HTML report that provides a clear overview of the result. Export to Excel allows easy processing of the data
  • (Automatic) processing of the list (in XML format) by means of other tools after saving it in a database (R&S®ROMES4N51) if required

The measurement data is analyzed according to specific criteria that depend on the modules selected. The basic R&S®ROMES4NPA package includes the following modules:

  • NQA (network quality analyzer) for voice calls, basic module including KPIs
  • DQA (data quality analyzer) for PS data connections, basic module including KPIs
  • Generic signals (for user-selectable linking of signals)

The following add-on modules are available as options:

  • NQA for GSM/WCDMA voice calls, expansion for problem spot detection. Analysis of voice calls for network problems, which can be selected from more than 140 different problem categories; listing of the problem spots together with type and cause of problem
  • Data module for EDGE, HSPA+ and LTE data links including problem spot detection. Specific analysis of high-speed data links for achievable data rates and analysis of potential problems as well as the IP data analyzer for analyzing IP-based data traffic and associated problems. When IP-based data services are used, e.g. web browsing or e-mail, this module analyzes the results and shows problem spots and their cause. A comprehensive collection of different analyses is available especially for LTE.
  • Coverage module with display of coverage data on a raster map. Coverage data (GSM, WCDMA, CDMA2000® 1xEV-DO, TETRA or LTE) measured with the Rohde & Schwarz scanners is rasterized and displayed on the map using Google Maps or OpenStreetMap. This makes the generation of coverage plots an easy task. Likewise, optimizations can be checked by means of a before-and-after comparison.
  • Neighborhood analysis module for automatic classification of neighborhood relationships