Access point planning 43— 15% of the available bandwidth per call for 1 Mbs operation.Note: These requirements mean that areas with a high-use densitymust receive RF coverage at the highest data rate of operation.• LAN bandwidth—Estimate anticipated peak call volume to ensure thatenough bandwidth is available to handle the network traffic generatedby all the wireless handsets. Handsets require approximately 150 kbpsof bandwidth per call. Network traffic can be monitored and analyzedusing a network sniffer or an SNMP workstation.• Number of other wireless devices per AP—The wireless handsets canshare bandwidth with other wireless devices. To ensure adequate RFbandwidth availability, consider the number of wireless data devices inuse per AP.Note: In a very large or complex site, it can be advisable to contracta professional site survey.Effective site surveyConsider the following points for an effective site survey.Network usageExamine the network usage:• How many people use a wireless handset?• What areas of the site require wireless handset access?• How many hours each day are wireless handsets typically in use?• Which locations are likely to generate the largest amount of traffic?• Where is future network expansion most likely?Mobility requirementsAssess the mobility requirements:• How many wireless handset users are in motion continually, such as ina warehouse or hospital?• How many users work from different fixed locations throughout the site?Physical site studyPerform a study of the physical site:• Study blueprints of the proposed site. A site blueprint provides a map ofthe site, including the location of objects such as walls, partitions, andanything else that could affect the performance of a wireless handset.This helps identify areas where wireless handsets are less likely toperform well. Many obstructions are not readily visible and, in someNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Copyright © 2004-2007, Nortel Networks.
