UMTS TDD Simulations

Possibilities to use WinProp for UMTS TDD network planning 

Introduction

 

Compared to UMTS FDD networks the planning of TDD networks has to consider further aspects. The possibility to assign the radio resources flexible between uplink and downlink emphasizes the influence of the modeling of the traffic sources and the corresponding radio resource management algorithms.

Furthermore a realistic interference modeling includes also the MS-MS and BS-BS interference scenarios.

Basic Simulation Principle

 

The ProMan UMTS TDD simulator is based on the UMTS FDD module. Most aspects described with the FDD simulation tool apply also for the TDD simulator.


The dynamic simulation is based on a continuous generation of mobile terminals according to a specified arrival process. Radio ressources in form of time slots and spreading codes are allocated for all mobiles (if available). The number of required time slots and codes can be specified for each defined service.


A closed loop power control algorithm tries to set the transmission powers to reach the required service depending target SNIR level.


Some of the key features of the dynamic UMTS TDD simulator are:

  • Different services (e.g. Speech, Data)

  • Different Mobile Types

  • Configurable Traffic Generator

  • Power Control

Outputs

 

One important opportunity is the generation of output maps with the information covering the whole simulation area. To generate these maps a scan mobile is passed over the simulation area and tries to connect to the network at each receiver pixel. During this scan the state of the dynamic simulation is frozen.


The possible outputs include:

  • Resulting Cell Footprints (cell areas)

  • Required  Transmission Power (UL and DL)

  • Service Coverage

cell area
MS power map
BS power map
Cell areas
MS power map
BS power map

 

 

Download a brochure about 3G CS network simulation
Download a brochure about 3G PS network simulation

Publications related to UMTS FDD Simulators

Comparison/Overview
Static  Sim.
Monte Carlo Sim.
Dynamic Sim.

Read more about the Dynamic Simulator

 

Propagation Models

The important interaction between neighboring cells in terms of interference demands for advanced propagation models depending on the current environment.


AWE Communications provides a variety of propagation models for different scenarios and all these models interact with he network planning module.


Please have a look at our propagation pages.

Application Areas 

To get more information about the usage of the 3G simulation tools for other applications you may have a look at the following links:

Brochures

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