Configuring TRX Receive and Transmit Modes

This describes how to configure TRX receive and transmit modes. This ensures that the configured TRX receive and transmit modes are in accordance with the actual RF cable connections and antenna cable connections of the BTS.

Procedure

1. Right-click the target cell in the left navigation tree in the Local Maintenance Terminal BSC6000, choose Configure Cell Attributes from the shortcut menu. Select the cell and click Next.
2. Click Set Cell Properties. A dialog box is displayed, as shown in Figure 1.
   Figure 1 Set Cell Attributes dialog box
   
   

3. Click TRX Config to open the Configure TRX Attributes dialog box. Then, click the Device Attributes tab, as shown in Figure 2.
   Figure 2 Set Cell Attributes dialog box
   
   

4. Set Receive Mode and Send Mode according to the determined TRX receive and transmit modes during configuration preparations. For details about configuration principles, see Table 1.

   Table 1 Configuration principles

   SN	Principles
   1	When one DRRU/DRFU is bound with one carrier, Send Mode can be set to PBT.
   2	When one DRRU/DRFU is bound with one carrier and "Send Receive Mode" is set to "Double Feeder (2TX + 2RX)" or "Double Feeder (2TX + 4RX)", Send Mode can be set to Diversity Transmitter.
   3	When one DRRU/DRFU is bound with one carrier and "Send Receive Mode" is set to "Double Feeder (2TX + 4RX)", Send Mode can be set to Four Receiver.
   4	When the receive and send modes of the TRXs on the GRRU/MRRU are set to Double Feeder (2TX + 2RX) or Double Feeder (2TX + 4RX), the send mode should be set to Transmit Diversity and Dynamic Transmit Diversity.

   NOTE:

   When Send Mode is set to Transmitter independent or combining, the system determines whether the send mode is "Transmitter independent" or "combining" according to the receive and send modes of the antenna and the bound logical TRX.

5. Click OK to return to the upper-level menu. The configuration of the TRX receive and transmit mode is complete.