Step 1 |
Choose Monitor > Site Maps. |
Step 2 |
From the Select a command drop-down list, choose RF Calibration Models. Click Go. The RF Calibration Models page displays a list of calibration models. The default calibration model is available in all the virtual domains. |
Step 3 |
From the Select a command drop-down list, choose Create New Model. Click Go. |
Step 4 |
Assign a name to the model in the Model Name text box. Click OK. The new model appears along with the other RF calibration models, but its status is listed as Not yet calibrated. |
Step 5 |
To start the calibration process, click the Model Name link. A new page appears showing the details of the new model.
Note |
In this page, you can rename and delete the calibration model by choosing the proper option from the Select a command list drop-down list. When renaming the model, enter the new name before selecting Rename Model. |
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Step 6 |
From the Select a command drop-down list, choose Add Data Points, and click Go. The campus, building, and floors displayed on this page are filtered based on the virtual domain. |
Step 7 |
If you are performing this process from a mobile device connected to the Prime Infrastructure through the Cisco Centralized architecture, the MAC address text box is automatically populated with the address of the device. Otherwise, you can manually enter the MAC address of the device you are using to perform the calibration. MAC addresses that are manually entered must be delimited with colons (such as FF:FF:FF:FF:FF:FF).
Note |
If this process is being performed from a mobile device connected to the Prime Infrastructure through the Cisco Centralized architecture, the MAC address text box is automatically populated with the device address. |
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Step 8 |
Choose the appropriate campus, building, floor, or outdoor area where the calibration is to be performed. Click Next.
Note |
The calibration in Outdoor Area is supported in Release 7.0.200.x and later. You can use this option to add the calibration data points to the outdoor area. The data points can be added to the Outdoor Area using the same procedure for calibration. |
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Step 9 |
When the chosen floor map and access point locations appear, a grid of plus marks (+) indicates the locations where data is collected for calibration. Using these locations as guidelines, you can perform either a point or linear data collection by appropriate placement of either the Calibration Point pop-up (point) or the Start and Finish pop-ups (linear) that appear on the map when the respective options appear.
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To perform a point collection, follow these steps:
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From the Collection Method drop-down list, choose Point, and select the Show Data Points check box if not already selected. A Calibration Point pop-up menu appears on the map.
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Position the tip of the Calibration Point pop-up at a data point (+), and click Go. A page appears showing the progress of the data collection.
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When the data collection is complete for a selected data point and the coverage area is plotted on the map, move the Calibration Point pop-up to another data point, and click Go.
Note |
The coverage area plotted on the map is color coded and corresponds with the specific wireless LAN standard used to collect that data. Information on color-coding is provided in legend on the left sidebar menu. Additionally, the progress of the calibration process is indicated by two status bars above the legend, one for 802.11a/n and one for 802.11b/g/n. |
Note |
To delete data points, click Delete and move the black square that appears over the appropriate data points. Resize the square as necessary by pressing Ctrl and moving the mouse. |
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Repeat point collection Steps a1 to a3 until the calibrations status bars of the relevant spectrums (802.11a/n, 802.11b/g/n) display as done.
Note |
The calibration status bar indicates data collection for the calibration as done, after at least 50 distinct locations and 150 measurements have been gathered. For every location point saved in the calibration process, more than one data point is gathered. The progress of the calibration process is indicated by two status bars above the legend, one for 802.11b/g/n and one for 802.11a/n. |
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To perform a linear collection, follow these steps:
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From the Collection Method drop-down list, choose Linear and select the Show Data points check box if not already selected. A line appears on the map with both Start and Finish pop-ups.
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Position the tip of the Start pop-up at the starting data point.
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Position the Finish pop-up at the ending data point.
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Position yourself with your laptop at the starting data point, and click Go. Walk steadily towards the endpoint along the defined path. A dialog box appears to show that the data collection is in progress.
Note |
Do not stop data collection until you reach the endpoint even if the data collection bar indicates completion. |
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Press the space bar (or press Done in the data collection page) when you reach the endpoint. The collection dialog box shows the number of samples taken before it closes to reveal the map. The map displays all the coverage areas where data was collected.
Note |
To delete data points selected in error, click Delete and move the black square that appears over the appropriate data points. Resize the square as necessary by pressing Ctrl and moving the mouse. |
Note |
The coverage area is color-coded and corresponds with the specific wireless LAN standard (802.11a/n, 802.11b/g/n, or 802.11a/b/g/n) used to collect that data (See legend in the left pane). |
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Repeat Steps b2 to b5 until the status bar for the respective spectrum is complete.
Note |
You can augment linear collection with data point collection to address missed coverage areas. |
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Step 10 |
To calibrate the data points, click the name of the calibration model at the top of the page. The main page for that model appears. |
Step 11 |
From the Select a command drop-down list, choose Calibrate, and click Go. |
Step 12 |
Click Inspect Location Quality when calibration completes. A map appears showing RSSI readings. |
Step 13 |
To use the newly created calibration model, you must apply the model to the floor on which it was created (and on any other floors with similar attenuation characteristics). Choose Monitor > Site Maps and find the floor. At the floor map interface, choose Edit Floor Area from the drop-down list, and click Go. |
Step 14 |
From the Floor Type (RF Model) drop-down list, choose the newly created calibration model. Click OK to apply the model to the floor.
Note |
This process can be repeated for as many models and floors as needed. After a model is applied to a floor, all locations are determined using the specific collected attenuation data from the calibration model. |
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