This procedure shall be used by the PCRF to request the status of policy counters available at the OCS, and to subscribe or unsubscribe to updates of policy counters by the OCS.

M

PC

The SAPC does not support the Intermediate Spending Limit Report Request procedure.

Subscription-Id AVP

M

C

Logical-Access-ID AVP

C

NC

Physical-Access-ID AVP

C

NC

SL-Request-Type AVP

M

C

Policy-Counter-Identifier AVP

Op

NC

The SAPC does not support the Intermediate Spending Limit Report Request procedure and does not specify the policy counter at the Initial SLR.

Policy-Counter-Status-Report AVP

C

C

Result-Code AVP

M

C

Experimental-Result AVP

M

C

The PCRF shall make use of this procedure when it determines for a subscriber that the status of policy counter(s) to which the PCRF does not have an existing subscription for status change notifications is/are required.

M

C

The SAPC sends the Initial Spending Limit Report Request at IP-CAN session establishment.

The PCRF shall make use of this procedure when it determines for a subscriber that the status of one or more, but not all, policy counter(s) to which the PCRF has an existing subscription for status change notifications are no longer required.

M

NC

The SAPC does not support the Intermediate Spending Limit Report Request procedure and does never specify the policy counter at any case.

In the initial request, i.e. when the request is sent for the first time for the Subscriber, the PCRF shall set the SL-Request-Type AVP to the value INITIAL_REQUEST (0).

M

C

For subsequent requests for the same Subscriber, the PCRF shall set the SL-Request-Type AVP to INTERMEDIATE_REQUEST (1).

M

NC

The SAPC does not support the Intermediate Spending Limit Report Request procedure.

For each policy counter that the PCRF requires the current status and notifications of future status changes, the PCRF shall indicate the concerned policy counter identifiers in the request.

M

NC

The SAPC does not specify the policy counter at any case. It always omits Policy Counter identifier to request current status and notifications of future status changes of all available policy counters.

The policy counter identifiers may be omitted if the PCRF requires the current status and notifications of future status changes of all available policy counters.

Op

C

The SAPC always omits Policy Counter identifier to request current status and notifications of future status changes of all available policy counters.

Policy-Counter-Status-Report AVP

M

PC

Pending policy counter statuses and activation times are not supported.

Result-Code AVP

M

C

Experimental-Result AVP

M

NC

The PCRF shall acknowledge the request by sending a response with a Result-Code AVP set to DIAMETER_SUCCESS and use the status of the received policy counter(s) as input to its policy decision to apply operator defined actions, e.g. downgrade the QoS.

M

C

The PCRF shall ignore an unknown policy counter status report for all unknown policy counter identifiers in an SLA or in an SNR from the OCS.

M

C

If the PCRF receives an SNR command while it has an ongoing SLR transaction with the OCS, the PCRF shall update the policy counter information based on the SNR command.

M

NC

When the corresponding SLA command for the ongoing SLR transaction is eventually received, the PCRF shall only update policy counter information for counters that were not provided in the previously received SNR command.

M

NC

If the PCRF receives a Policy-Counter-Status-Report with one or more Pending-Policy-Counter-Information AVPs, then at the time defined by the Pending-Policy-Counter-Change-Time AVP, the pending Policy-Counter-Status shall autonomously become the current status of a policy counter. Subsequently provided information for pending statuses of a policy counter shall overwrite the previously received information.

M

NC

If the pending policy counter statuses are applicable to a policy counter identifier but the Pending-Policy-Counter-Information AVPs are omitted in the new policy counter status report, the PCRF shall remove all the pending policy counter statuses.

M

NC

This procedure shall be used by the PCRF to unsubscribe to any future updates of policy counters for a given subscriber by the OCS.

M

C

Termination-Cause AVP

M

C

When the PCRF decides that policy decisions for a given user no longer depend on policy counter(s) to which the PCRF has existing subscriptions for status change notifications, the PCRF shall send the Final Spending Limit Report Request to the OCS.

M

C

The SAPC sends the Final Spending Limit Report Request only at the last IP CAN session termination for that subscriber.