Control over access in radio network and services can be divided into three levels:
- statistical Non-Real Time (NRT) optimization loop on NMS level with automated troubleshooting process and statistical control of other lower-level control loops behavior:
- slow real-time optimization (RNC, BSS) that includes dynamic control of system interworking and self-regulation of radio network parameters (like load thresholds).;
- fast real-time optimization of network elements (BTS, NodeB, eNodeB) that includes self-healing, self-configuration functions targeted for fast power/congestion control, link adaptation and channel allocation.
Over the period of many years MERA has been involved in NMS level optimization components design, implementation and testing, including:
- automated GSM network re-configuration procedures such as configuration verification, frequency plan change, re-parenting, etc.;
- automatic Neighboring Relation (ANR) function for UMTS networks based on Cell detection mechanism with multi-criteria ranking mechanism and black/white lists support;
- handover parameters optimization (HO) function for UMTS network based on early/late handovers detections and ping-pongs distributions.
MERA possesses vast experience when it comes to design, implementation, testing and support of
- multi-technology Network element (BTS, BSC, RNC, NodeB, eNodeB, etc.) simulation product covering NMS interface control & data function for Tier 1 vendor;
- etwork simulation tools like:
- traffic generators for different traffic models,
- Network traces playback,
- statistical analysis components.
Shortly after LTE networks had emerged, MERA started its own Self-Organizing Networks (SON) research (see SON) targeted to implementation of most valuable optimization scenarios based on a home-grown 2D/3D network simulator.