Traffic / Load Analysis

CelPlanner™ can acquire information from different sources, and distribute it according to the demographic regions. CelPlanner™ accepts multiple demographic data, represented as residential, commercial, vehicular, and special events. To determine the positioning of calls, the distribution of subscribers must be known.

Traffic grids can be created with different resolutions, and the source of the demand data can be extracted in a number of different ways such as:

A fixed amount of traffic can be distributed across the analysis area.
Traffic information can be obtained directly from the demographic data.
Traffic layers can be created for different building levels, allowing for modeling of multiple height effects.For networks in live operation, traffic information can be obtained from the switching equipment.
Furthermore, the demographic data can be distributed according to morphological types, providing a much more realistic distribution.
CelPlanner™ has incorporated Monte Carlo techniques to implement the most advanced IS2000/1xRTT/1xEVDO predictions in the market. A IS2000/1xRTT/1xEVDO prediction is affected not only by RF propagation factors, but also by the geographical distribution of the calls. Several factors are interrelated in a IS2000/1xRTT/1xEVDO prediction, including the positioning of the cell sites, the interference generated by each call, the hand off parameters, and the number and location of calls. These and several other elements affect the outcome of system performance. MIMIC provides the precise calculation of load levels (total interference power), noise rise levels, statistical distribution for traffic channel power allocation, and the amount being attended by soft hand-offs, so critical in IS2000/1xRTT/1xEVDO systems, in order to obtain precise and correct predictions.

Summary

The suite automatically incorporates a host of particular voice, data, and image requirements (such as type of vocoder, data burstiness, latency time and error rate) introducing them seamlessly into the planning process for broadband 3G systems.

3G systems require the design of independent upstream and downstream links. CelPlanner™ Suite software also supports this requirement by providing independent bandwidths and channel assignment for each link.

3G systems present a major challenge for the definition of subscriber type and environment. CelPlanner™ Suite faces this challenge by using its proprietary and unique approach, called Dynastatic Simulation. This simulation consists of static and dynamic techniques mixed to provide more accurate results.

The static technique takes snapshots of the system in order to obtain subscriber types and location, calculating parameters, such as capacity, coverage, and noise. The software takes several snapshots to better represent the system. The static simulation is fast and performs geographic assignment of subscribers but does not represent real-time usage of the system. For this reason, a dynamic simulation technique is also used. This technique consists of statistical simulation of simultaneous subscribers in the system. This simulation considers subscriber definition parameters to determine usage of the system.

The implementation of these two techniques combined (or Dynastatic Simulation) provides a optimal solution for performing a deep analysis of a system, while avoiding time-consuming processes.

To support this functionality, CelPlanner™ provides users with the means to configure several types of subscribers and environments.