Section: 8.4.4.2 MN initiated SN Modification with SCG Activation or Deactivation
Content: Figure 8.4.4.2-1: SCG Activation or Deactivation in MN initiated SN Modification procedure 1. SCG is deactivated or activated. 2. The MN sends the SN Modification Request message to the SN, indicates the request of SCG activation or deactivation. 3. The SN-CU-CP may send the BEARER CONTEXT MODIFICATION REQUEST message to the SN-CU-UP to notify the SCG activation or deactivation. 4. The SN-CU-UP sends the BEARER CONTEXT MODIFICATION RESPONSE message to the SN-CU-CP. 5. The SN-CU sends the UE CONTEXT MODIFICATION REQUEST message to the SN-DU to indicate the request of SCG activation or deactivation. 6. The SN-DU may send the UE CONTEXT MODIFICATION RESPONSE message to the SN-CU, indicates the SCG status. 7. The SN-CU-CP sends the BEARER CONTEXT MODIFICATION REQUEST message to the SN-CU-UP to notify the SCG status. 8. The SN-CU-UP sends the BEARER CONTEXT MODIFICATION RESPONSE message to the SN-CU-CP. NOTE: Step 7 and 8 may be skipped in case the SN-DU accepted the SCG activation or deactivation request. 9. The SN sends the SN Modification Request Acknowledge message towards the MN, indicates the SCG status. 10. The MN-CU-CP may send the BEARER CONTEXT MODIFICATION REQUEST message to the MN-CU-UP to notify the SCG status. 11. The MN-CU-UP sends the BEARER CONTEXT MODIFICATION RESPONSE message to the MN-CU-CP.