Packet Data Service Example Procedure (via Simple IP)

A. PC Setup

Configure the PC for a dial-up connection to the Internet via the wireless modem

The laptop has to be configured to include the wireless modem in its list of networks. The network dial-up connection properties must be configured according to the requirements of the wireless modem and the data port driver (NOTE: Most access terminals require the dialed number to be #777). When the PC is properly configured, the "Network and Dial-up Connections menu" should include the wireless modem in its list of connections.

In this example, on the PC running the Windows 2000, select the Network and Dialup Connections from the Control Panel. Select Local Area Connection icon, right click, and select Disable. Then select the Make New Connection icon, set up an internet connection with the new added modem (the connection is named as "Wireless Modem", for example).

B. Hardware Connections

There are many different configurations for testing wireless modems (or other wireless appliances such as WAP enabled access terminals) data handling performance. See HTTP Functional Test for a diagram of the connection used for this example.

• If the test set has LAN 2 PORT , the LAN port, the LAN 2 Port and the server should all be connected to a hub. In this example (access the test set's built-in web server via the RF interface over packet data service from a laptop computer (PC)), you should just connect the LAN port with the LAN 2 port using a LAN cable.
• RF (Wireless Modem to Test Set): Connect the wireless modem RF cable to the test set's RF In/Out port.
• PC to Wireless Modem: For this example, the USB port provides the connection. Connect the USB port from the wireless modem to the PC

C. Test Set Setup

1. Set up test set's LAN IP address. For example,
   • Press the SYSTEM CONFIG key.
   • Press the Instrument Setup ( F1 ) key.
   • Set LAN IP Address to 130.29.181.1
   • Set Subnet Mask to 255.255.0.0
   • Set Default Gateway to be blank (enter a 0 to make it blank)
   • Set LAN IP Address 2 (Data+) to 130.29.181.90 (Note that the LAN IP Address 2 (Data+) must be set properly if the test set has the LAN 2 Port.)
   • Press F6 ( Close Menu ).
      

   NOTE

   The settings of LAN IP Address , Subnet Mask , Default Gateway and LAN IP Address 2 (Data+) depend on your local network that the test set is connected to. You should work with your IT department for proper IP settings.

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2. Set up call parameters required for an open session during the packet data connection (see How Do I Change Call Parameters? for a general procedure).
   • Press the Call Setup key.
   • Select Application Config ( F10 on Call Parms 1 of 3) and set Service Application Type to Default Packet Application .
   • You may need to set some parameters (such as Cell Power, Cell Band, Channel, etc.) required for your wireless devices to find service with the test set.

3. Set up data channel parameters required for the packet data connection (see How Do I Set Up Data Channel Parameters? for a general procedure).

   • Select the Data Channel Info ( F2 on Call Control 3 of 3).
   • Select the Data Channel Parameters ( F1 ).
   • Set the DUT IP Address (for example, 130.29.181.2).
     In this example, you should set the DUT IP Address and the test set's IP address (you have done in step 2) unique and in the same subnet (see IP Address Requirements ). Note that the DUT IP Address will be sent to the PC via AT (modem) if you set the Internet Protocol (TCP/IP) Properties to "Obtain an IP address automatically" menu.
   • Make sure that the External PDSN State is set to Off (Indicating using test set's internal PDSN).
   • Press F6 ( Close Menu ).

4. Now, the test set setup are ready for a dial-up connection from the PC.

D. Functional Test

In order to test the functioning of the wireless modem, it must first complete a dial-up connection between the PC and the test set.

1. Turn the wireless modem (AT) on and wait for it to open a session. Check for Session Open in the Active Cell status field and the access terminal information shown on the Call Setup screen. See B. Open a Session .
2. On the PC (for example, Windows 2000), select Start, Settings, and Control Panel. In the Control Panel window double click Network and Dial-up Connections.
3. Double click the icon labeled with "Wireless Modem" which has been set up during the procedure of Configure the PC for a dial-up connection to the Internet via the wireless modem .
4. In the Dial-up Connection window, select the Dial button.
5. Verify that a connection is active by looking for Connected shown in the Active Cell field on the bottom center portion of the test set's screen. Now, you are ready for the demonstration to continue.

6. Open the browser on the PC (for example, Internet Explorer). Enter the test set's IP address on the address area of the PC's browser (in this example, http://130.29.181.1). The PC browser should display the test set's internal web server page:

   

7. Double-click on the Get Image , the current screen on your test set's front panel will be displayed on your browser. As data is transferred, monitor the Data Counters (see Data Counters ). or the Data Throughput Monitor window (see Data Throughput Monitor ) from the test set. You can see the data rate variation during the data transfer. To evaluate the effects of the RF degradation on the data rate, you can adjust the Cell power or add an AWGN (Additive White Gaussian Noise) power. The data rate changes can be easily identified from the Traffic Channel Packet Information screen.
8. You can also use the Wireless Protocol Advisor (WPA) to log 1xEV-DO SLP (Signaling Link Protocol), RLP (Radio Link Protocol), PPP (Point-to-Point Protocol) and IP (Internet Protocol) messages for protocol analysis. See Protocol Logging .

Related Topics

Simple IP and Mobile IP

Packet Data Service Example Procedure (via Mobile IP)

Data Channel