A-Interface Cutover for a BSC from TDM to IP

Hi, dear

Please kindly wait for a minute.

We are doing on your question.

Hello, friend.

Do you want to change the TDM transmission mode of the Abis interface to the IP transmission mode?

1. Run the RST BTS command with Reset Level set to 3-LEVEL to reset the BTS at level 3.

Description:

If the BTS is not reset at level 3, the BTS cannot switch from the TDM transmission mode to the IP transmission mode in time. As a result, the OML is interrupted.

When the eNodeB detects that the OML is disconnected, the eNodeB waits for 15 minutes and then automatically restarts.

2. Running the RST BTS command to restart the BTS shortens the restart time. You do not need to wait for 15 minutes.

3. Run the DEA BTS command to deactivate the BTS.

4. Run the RMV BTSCONNECT command to remove the BTS connection.

5. Run the ADD BRD command to add an IP interface board on the BSC side.

Configure data at the physical layer and data link layer (using the FG2a/FG2c/FG2d/GOUa/GOUc/Goud board).

6. Run the ADD ADJNODE command to add an adjacent node.

7. Run the ADD IPPATH command to configure IP user plane data.

Description:

In layer 3 networking, if the BSC6000 and the BTS are not in the same network segment, run the ADD IPRT command to configure an IP route on the BSC side.

8. Run the MOD BTS command with Service Mode set to IP and IP Physical Transmission Type set to IP_OVER_FE/GE.

9. Run the ADD BTSESN command to add a BTS ESN.

10. Run the ADD BTSBRD command to add an IP transmission board for the BTS.

Description:

Perform this step only when the BTS type is double-transceiver BTS.

11. Run the SET BTSETHPORT command to set the BTS port IP address.

12. Run the SET BTSIP command with BSC IP set to Device IP or Port IP of the IP interface board on the BSC side.

Description:

In layer 3 networking, if the BSC6000 and the BTS are on different network segments, run the ADD IPRT command to configure an IP route on the BTS side.

13. Run the SET BTSIPCLKPARA command to configure the BTS IP clock.

14. Run the ACT BTS command to activate the BTS.

Hello, friend.

@faysalji

A. the MSC server of the mobile exchange receiving a call request message from the mobile station MS carrying its own supported code type, said MSC server establishing a code type priority table based on said call request message and sending an add endpoint message to the MGW wireless side of the media gateway

B. said MSC server receiving a response message returned by said MGW wireless side containing the IP address and port number assigned by the MGW for the call, sending an assignment message to the BSC, said assignment message carrying the IP address and port number assigned by said MGW for the call and said server code type priority table, said BSC receiving said assignment message, the corresponding IP bearer being established and code type negotiation being performed; wherein step B further comprises

wherein step B is further followed by: said BSC modifying the code type

when it is determined that the code type converter TC is set on the BSC side, said BSC modifies the selected code type and reports it to said MSC server, which initiates code type renegotiation; or, TC is set on the MGW side, said BSC initiates a change code type request when modifying or switching the code type, said MSC server sends a change response code type message to said BSC after modifying the code type of the corresponding endpoint of the MGW, said BSC receives the change code type message and modifies the code type.