This section explains updating PCO value using the Gx interface.

• Policy and Charging Rules Function (PCRF) sends request to activate predefined rules.

• If activation is successful and if the charging action is configured for PCO, then the retrieved value is sent to UE.

• If the predefined rule creation is performed during session creation (CCA), then the retrieved PCO is sent to UE in the Create Session Response message for P-GW and sent to UE in the Create PDP Context Response message for GGSN.

• If the predefined rule activation is sent in the middle of the session (CCA-U), then the retrieved PCO is sent to UE with the next message.

• PCRF sends request to deactivate predefined rules.

• If predefined rules removal is successful, and if PCO is configured for charging action, then the configured value in the APN is returned to UE with the next message.

• If multiple predefined rules are enabled, then the last charging action configured for PCO, in the order of rules sent, is considered as valid and Session Manager is updated with the value.

Note	Ensure that the last predefined rule has the correct PCO value for this scenario. Remaining requested rules will follow the regular predefined rule activation procedure.

This section explains updating PCO value using the Gy interface.

• Online Charging System (OCS) sends filter ID to enable the corresponding post-processing dynamic rule.

• If rule activation is successful and if the associated charging action is configured for PCO, then the retrieved value is sent to the Session Manager through the Session Update Indication event.

• GW sends PCO value to UE.

• If OCS sends multiple filter IDs, then the charging action associated with the last filter ID is used for PCO.

• CRF sends request to deactivate predefined rules.

• On successful removal of predefined rules, if charging action is configured for PCO, then a PCO default value under APN will be returned to UE with the next message.

Use the following sample configuration to configure multiple PCOs in the ACS Charging Action Configuration Mode.

configure 
   active-charging service service_name 
      charging-action action_name 
         { pco-custom1 | pco-custom2 | pco-custom3 | pco-custom4 | pco-custom5 } custom_value 
         end 

NOTES:

• pco-custom1-pco-custom5 : Configures multiple operator-specific PCO.

• custom_value : Enter the container value as an integer in the range of 0–255.

Use the following sample configuration to configure Custom1 PCO in the APN Configuration mode.

configure 
   context context_name 
      apn apn_name 
         [ no ] pco-option custom1 [ ue-requested ] 
         end 

NOTES:

• pco-option custom1 : Configures operator defined PCO container custom1 mode. By default, its container ID value is fixed to 0.

• ue-requested : Configures to include Custom PCO Options in PCO IE, only when it requested by UE.

• no : Removes custom1 PCO configuration in the APN Configuration mode.

Use the following sample configuration to configure multiple PCOs in the APN Configuration mode.

configure 
   context context_name 
      apn apn_name 
         [ no ] pco-options { { custom2 | custom3 | custom4 | custom5 } [ ue-requested value custom_value | value custom_value ] } 
         end 

NOTES:

• custom2-custom5 : Configures APN to include custom PCO options in PCO IE.

• ue-requested : Configures to include Custom PCO Options in PCO IE, only when it is requested by UE.

• value : Configures default container value of Custom PCO.

• no : Removes PCO configuration in the APN Configuration mode.

Use the following sample configuration to configure multiple PCOs in the Global Configuration mode.

configure 
   [ no ] pco-options { custom2 | custom3 | custom4 | custom5 } container-id container_id_value 
   end 

NOTES:

• container-id : Configures the operator defined container ID and the value ranging from FF03 to FFFF.

• no : Removes PCO container ID configuration in the Global Configuration mode.

Note	The custom1 container ID is not configurable in the Global Configuration mode as its container value is fixed to FF00.

Note	If you are deleting or modifying an existing container ID value for an ongoing session, then it can result in erratic behavior. A confirmation message is displayed before the deletion or modification of the container ID. Based on your input (y/n), you can proceed to the next steps.

This section provides information regarding show commands and their outputs for this feature.