Installation guide
6
Wi-Fi Location-Based Services—Design and Deployment Considerations
OL-11612-01
Location Tracking Approaches
Note Other supported hardware or software can be found by referring to the information located at the
following URL: http://www.cisco.com/en/US/products/ps6386/index.html.
Location Tracking Approaches
Location tracking and positioning systems can be classified by the measurement techniques they employ
to determine mobile device location (localization). These approaches differ in terms of the specific
technique used to sense and measure the position of the mobile device in the target environment under
observation. Typically, Real Time Location Systems (RTLS) can be grouped into four basic categories of
systems that sense and measure position on the basis of the following:
• Cell of origin (nearest cell)
• Distance (lateration)
• Angle (angulation)
• Location patterning (pattern recognition)
An RTLS system designer can choose to implement one or more of these techniques. This may be clearly
seen in some approaches attempting to optimize performance in two or more environments with very
different propagation characteristics. An example of this is an RTLS system attempting to yield optimal
performance for both indoor and outdoor applications by using two different techniques. It is not unusual
Table 1 Tested Hardware and Software
Location Appliance
AIR-LOC2700-L-K9
1
1. The Cisco Wireless Location Appliance 2710 (AIR-LOC2710-L-K9) model is
the successor to the 2700 (AIR-LOC2700-L-K9) model. There is no functional
difference between the 2700 and 2710 models.
Location Appliance 2700 Series; software release 2.1.34.0
Wireless Control System (WCS)
WCS-STANDARD-K9-4.0.66.0
.exe
Wireless Control System release 4.0.66.0 for Windows 2003
Server
2
2. Requires appropriate licensing for Location-Based Services support and total
number of APs supported.
WCS-STANDARD-K9-4.0.66.0
.bin
Wireless Control System release 4.0.66.0 for Red Hat Enterprise
Linux 4
WLAN Controllers
AIR-WLC4402-12-K9 4400 Series WLAN Controller; release 4.0.155.0
AIR-WLC2006-K9 2006 Series WLAN Controller; release 4.0.155.0
Access Points
AIR-LAP1242AG-A-K9 802.11ag LWAPP AP North American; version 12.3(7)JX
External Antennas
AIR-ANT4941 2.4 GHz, 2.2 dBi Dipole
AIR-ANT5135D-R 5 GHz 3.5dBi Dipole