Configuring the BTS3900E GSM in S2/2/2 Mode

This describes how to configure the BTS3900E GSM in S2/2/2 mode on the BSC side.

Scenario

Initial data configuration of a new BTS

Mandatory/Optional

Optional

NEs Involved

BTS3900E GSM

NOTE:
  • Both the E1 transmission mode and the FE transmission mode are supported but only one mode can be selected.
  • Abis interface boards consist of the GEIUB, GOIUB, GEHUB, GFGUB, and GOGUB.
  • The configuration methods for the AC type and the DC type are the same.

Prerequisites

Preparation

Table 1 Example of the data negotiated and planned for configuring the BTS3900E GSM in S2/2/2 mode

Parameter

Example

Source

Site attributes

Site Name

BTS 1

Network planning

Site Type

BTS3900E GSM

Network planning

Upper-Level Port No.

0 GEIUB Port

Network planning

Multiplexing Mode

4:1

Network planning

FlexAbis Mode

Fix Abis

Network planning

Service Mode

TDM

Network planning

Active

Deselected

Network planning

Config Ring

No

Network planning

Config AbisByPass

No

Network planning

Cell attributes

Number of Cells

3

Network planning

Cell Name

Cell 1-0, cell 1-1, cell 1-2

Network planning

Frequency Band

GSM900

Network planning

MCC

460

Network planning

MNC

01

Network planning

LAC

8240

Network planning

CI

1, 2, 3

Network planning

BCC

1

Network planning

NCC

1

Network planning

Cell Extension Type

Common cell

Network planning

Cell Type

Common cell

Network planning

TRX attributes

RXU Name of BTS3900E

BTS3900E0, BTS3900E1, BTS3900E2

BTS internal planning

Send Receive Mode

Double Feeder (1TX + 2RX)

BTS internal planning

Assigned Cell

Cell 1-0, cell 1-1, cell 1-2

Network planning

Frequency configuration

57 (main BCCH frequency), 71

62 (main BCCH frequency), 76

64 (main BCCH frequency), 83

Network planning

TRX configuration

TRX 0, TRX 1

TRX2, TRX3

TRX4, TRX5

Network planning

FH Mode

None

Network planning

Procedure

  1. On the BSC6000 Local Maintenance Terminal, right-click the GEIUB/GOIUB interface board in the GMPS/GEPS and 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.

    Figure 2 Add New Site dialog box

  3. Set the parameters by referring to Table 1.
  4. Click OK. A dialog box is displayed, as shown in Figure 3.

    Figure 3 Add Site dialog box (2)

  5. Click Next. A dialog box is displayed, as shown in Figure 4.

    Figure 4 Add Site dialog box (3)

  6. Select a BTS, and then click Add Cell. A dialog box is displayed, as shown in Figure 5.

    Figure 5 Adding a cell

  7. Set the parameters by referring to Table 1.
  8. Click OK. A dialog box is displayed, as shown in Figure 6.

    Figure 6 Add Site dialog box (4)

  9. Click Next. A dialog box is displayed, as shown in Figure 7.

    Figure 7 Add Site dialog box (5)

  10. Click Site Attributes. A dialog box is displayed, as shown in Figure 8.

    Figure 8 Site Device Attributes dialog box (1)

  11. Configure the RXU link and BTS3900E.
    1. In the Site Device Attributes dialog box, right-click BTS3900E and choose Add RXU Chain from the shortcut menu. A dialog box is displayed, as shown in Figure 9.

      Figure 9 Add RXU Chain dialog box

    2. Set Chain No., Chain Type, and Chain Head Board Port.
    3. Click OK. The RXU link is added successfully, as shown in Figure 10.

      Figure 10 Added RXU link

    4. Right-click the RXU chain, and then choose Add RXU > Add BTS3900E from the shortcut menu. A dialog box is displayed, as shown in Figure 11.

      Figure 11 Add BTS3900E dialog box

    5. Set RXU NAME and RXU No..

      NOTE:

      RXU NAME of different BTS3900Es must be unique. Otherwise, the system may display error information.

    6. Click OK. The BTS3900E is added, as shown in Figure 12.

      Figure 12 Site Device Attributes dialog box (2)

    7. Right-click the BTS3900E, and then choose Configure RXU Attribute from the shortcut menu. A dialog box is displayed, as shown in Figure 13.

      Figure 13 Basic Attributes of Site Board dialog box

    8. Click the Configure Site Board Attributes tab to display the tab page, as shown in Figure 14.

      Figure 14 Basic Attributes of Site Board dialog box

    9. Set the parameters by referring to Table 1.
    10. Click OK to return to the dialog box, as shown in Figure 12.
    11. Right-click the BTS3900E, and then choose Bind Logical TRX from the shortcut menu. A dialog box is displayed, as shown in Figure 15.

      Figure 15 Binding Logical TRX dialog box

    12. Select two TRXs and the cells allocated to them, and set TRX numbers according to the data provided by the network planning department.

      NOTE:

      In S2/2/2 configuration, one BTS3900E maps one cell. Therefore, the two logical TRXs that are bound to one BTS3900E belong to the same allocated cell.

    13. Click OK to return to the dialog box, as shown in Figure 12.
    14. Repeat 11.a through 11.m to configure other RXU links and BTS3900Es. The final configuration result is shown in Figure 16.

      Figure 16 Configuration result of RXU links and BTS3900E in S2/2/2 mode

  12. In the Site Device Attributes dialog box, add other modules. For details, see Adding BTS Modules.
  13. Click OK to return to the dialog box, as shown in Figure 7.
  14. Click Next. A dialog box is displayed, as shown in Figure 17.

    Figure 17 Add Site dialog box (6)

  15. Select the added cell, and then click Cell Attributes. A dialog box is displayed, as shown in Figure 18.

    Figure 18 Set Cell Attributes dialog box

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

  16. In the TRX Attributes group box, select the allocated TRXs, as shown in Figure 19.

    Figure 19 TRX Attributes group box

  17. Click Frequency Config. A dialog box is displayed, as shown in Figure 20. Then, select a frequency.

    Figure 20 Set Cell Frequency dialog box

  18. Click OK to return to the dialog box, as shown in Figure 18.
  19. Click TRX Config. A dialog box is displayed, as shown in Figure 21.

    Figure 21 Configure TRX Attributes dialog box

  20. Move a frequency corresponding to the TRX from Available Frequencies to Assigned Frequencies.
  21. Click the Channel Attributes tab. A tab page is displayed, as shown in Figure 22. Then, set the channel types corresponding to the channel numbers.

    Figure 22 Configuring Channel Attributes tab page

  22. Click the Device Attributes tab. A dialog box is displayed, as shown in Figure 23.

    Figure 23 Configuring Device Attributes tab page

  23. Set site device attribute parameters.
  24. Click OK to return to the dialog box, as shown in Figure 18.
  25. Repeat 19 through 24 until the frequencies, channel attributes, and device attributes of all the TRXs in a cell are configured.
  26. Click OK to return to the dialog box, as shown in Figure 17.
  27. Repeat 15 through 26 until the attributes of all the cells are configured.
  28. Click Finish. The configuration of the BTS is complete.
  29. 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 24.

      Figure 24 Set Site Active State dialog box

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

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