Configuring the BTS3900 GSM in S4/4/4 Mode

This describes how to add a BTS3900 GSM in S4/4/4 mode for the BSC and configure its attributes, logical TRXs, and cell attributes.

Scenario	Initial configuration of a new BTS
Mandatory/Optional	Mandatory
NEs Involved	BTS3900 GSM

NOTE:

• For the parameters not mentioned in this section, retain the default values during the initial configuration.
• Abis interface boards are classified into the GEIUB, GOIUB, GEHUB, GFGUB, and GOGUB.

Prerequisites

Procedure

1. On the BSC6000 Local Maintenance Terminal, right-click the GEIUB interface board of the GMPS or GEPS, and then choose Add Site from the shortcut menu. A dialog box is displayed, as shown in Figure 1.
   Figure 1 Add Site dialog box (1)
   
   

2. Click Add Site. A dialog box is displayed, as shown in Figure 2. Then, set parameters in the displayed dialog box.
   Figure 2 Add New Site dialog box
   
   

3. Click OK. A dialog box is displayed, as shown in Figure 3.
   Figure 3 Add Site dialog box (2)
   
   

4. Click Next. A dialog box is displayed, as shown in Figure 4.
   Figure 4 Add Site dialog box (3)
   
   

5. Select the target BTS and click Add Cell. A dialog box is displayed, as shown in Figure 5. Then, set parameters in the displayed dialog box.
   Figure 5 Add New Cell dialog box
   
   
   CAUTION:

   If you find the configuration error of a frequency band in a cell or BTS after the configuration is complete, you need to delete the cell or BTS and then add a cell or BTS for modifying a frequency band. The reason is that a frequency band cannot be modified in a configured cell or BTS.

6. Click OK. A dialog box is displayed, as shown in Figure 6.
   Figure 6 Add Site dialog box (4)
   
   

7. Click Next. A dialog box is displayed, as shown in Figure 7.
   Figure 7 Add Site dialog box (5)
   
   

8. Click Site Attributes. A dialog box is displayed, as shown in Figure 8.
   Figure 8 Site Device Attributes dialog box (1)
   
   

9. In the Site Device Attributes dialog box, right-click the corresponding slot as described in Figure 9, and choose Add Board > GRFU. A shortcut menu is displayed, as shown in Figure 10.
   Figure 9 Site Device Attributes dialog box
   
   
   Figure 10 Configure Chain of Board dialog box
   
   

10. Set RXU NAME, SFP Port No., and Hop. Click OK. The GRFU is added.
    NOTE:

    • SFP Port No. must be consistent with the CPRI ports connected to the GTMU.
    • Hop indicates the grade of the RXU chain that is carried on the board.

11. Right-click the GRFU and then choose Configure RXU Attribute from the shortcut menu. In the displayed dialog box, click the Configure Site Board Attributes tab, as shown in Figure 11. Then, set related parameters.
    Figure 11 Basic Attributes of Site Board dialog box
    
    

12. Click OK to return to the Site Device Attributes dialog box.
13. Right-click the GRFU, and then choose Bind Logical TRX from the shortcut menu. A dialog box is displayed, as shown in Figure 12.
    Figure 12 Binding logical TRX dialog box
    
    

14. Select the required TRXs and the cells allocated to them, and set TRX numbers.
15. Click OK to return to the Site Device Attributes dialog box.
16. Repeat 9 through 15 to configure multiple RF modules and other logical TRXs.

17. Add other modules to subrack 2 in the Site Device Attributes dialog box. For details, see Adding BTS Modules.
18. Click OK to return to the dialog box, as shown in Figure 7.
19. Click Next. A dialog box is displayed, as shown in Figure 13.
    Figure 13 Add Site dialog box (6)
    
    

20. Select the added cell, and then click Cell Attributes. A dialog box is displayed, as shown in Figure 14.
    Figure 14 Set Cell Attributes dialog box
    
    

21. Set parameters of basic cell attributes.
    NOTE:

    For two cells, the values of at least one of the following parameters should be different: MCC, MNC, LAC, and CI.

22. In the TRX Attributes group box, select the allocated TRXs, as shown in Figure 15.
    Figure 15 TRX Attributes group box
    
    

23. Click Frequency Config. A dialog box is displayed, as shown in Figure 16. Then, select a frequency.
    Figure 16 Set Cell Frequency dialog box
    
    

24. Click OK to return to the Set Cell Attributes dialog box.
25. Click TRX Config. A dialog box is displayed, as shown in Figure 17.
    Figure 17 Configure TRX Attributes dialog box
    
    

26. Add a frequency corresponding to the TRX from Available Frequencies to Assigned Frequencies.
27. Click the Channel Attributes tab. A tab page is displayed, as shown in Figure 18. Then, set the channel types corresponding to eight channel numbers.
    Figure 18 Channel Attributes tab page
    
    

28. Click the Device Attributes tab. A dialog box is displayed, as shown in Figure 19.
    Figure 19 Device Attributes tab page
    
    

29. Set Power Level, Power Type, Receive Mode, and Send Mode.
30. Click OK to return to the Set Cell Attributes dialog box.
31. Repeat 25 through 30 until the frequencies of all the TRXs, channel attributes, and device attributes in a cell are configured.
32. Click OK to return to the Add Site dialog box.
33. Repeat 20 through 32 until the attributes of all the cells are configured.
34. Click Finish. The configuration of the BTS is complete.
35. Activating a BTS.
    1. On the Management Tree tab page of the BSC6000 Local Maintenance Terminal, right-click the target BTS and choose Site Operation > Set Site Active State from the shortcut menu. A dialog box is displayed, as shown in Figure 20.
       Figure 20 Set Site Active State dialog box
       
       

    2. Under Site Active State, select Activated. Then, click Finish to complete the BTS activation.