112 CHAPTER 5: P LANNING THE 3COM MOBILITY S YSTEMApplying the RF Measurements to the Floor Plan1 Under Site Survey in the Task List panel, click Optimize.A wizard appears, listing the progress of the request. The Total number of RF measurements that did not intersect anyobject line lists the number of measurements that did notexperience attenuation due to an RF obstacle in the path betweenthem.If the measurements came from a site survey file, they aremeasurements between the portable AP (LOS point) and the PCrunning the site survey tool. If the measurements came from MAPradios in the network, they are measurements between MAPradios. The Total number of objects that will be corrected line indicates thenumber of measurements that did experience attenuation. Forexisting RF objects, 3WXM corrects the attenuation to match theresults. If the floor plan does not have an RF obstacle where theattenuation library indicates one exists, 3WXM creates an RFobstacle.For RF obstacles created by 3WXM, the description isauto-generated and the obstacle type is Other. You can editthese values by selecting the obstacle, clicking the Edit propertiesicon to open the Modify RF Obstacle wizard, and modifying thevalues. Click OK to close the wizard and save the changes. (See“To use the Create RF Obstacle Dialog box” on page 98. Thewizard is the same whether it is labeled Create or Modify.)2 Click Finish.Defining WirelessCoverage AreasYou must define which areas of your enterprise require wireless networkcoverage. In 3WXM, you plan for both coverage and capacityrequirements in a particular area on the floor. Capacity requirements aredetermined by the number of users in the area and the amount ofwireless network bandwidth desired for every user.The floor of a building can contain multiple coverage areas if severalgroups of users on the floor require different bandwidth. For example, anengineering department might have its own coverage area toaccommodate a need for higher bandwidth, but the rest of the floormight be planned for general use with lower bandwidth requirements.
