HANDLING OF OCS COUNTER INFORMATION
Various exemplary embodiments relate to a method performed by a policy and charging rules node (PCRN), the method including: sending a first Sy spending limit request (SLR) to an online charging system (OCS); receiving from the OCS a first spending limit answer (SLA) including policy counters and associated status reports for a subscriber; creating an Sy session; storing policy counter data in the Sy session; and making a policy decision based upon policy counter statuses associated with the Sy session.
1 . A method performed by a policy and charging rules node (PCRN), the method comprising:
sending a first Sy spending limit request (SLR) to an online charging system (OCS);
receiving from the OCS a first spending limit answer (SLA) including policy counters and associated status reports for a subscriber;
creating an Sy session;
storing policy counter data in the Sy session; and
making a policy decision based upon policy counter statuses associated with the Sy session.
2 . The method of claim 1 , further comprising:
receiving a message to terminate the Sy session;
terminating the Sy session including deleting the stored policy counter data;
sending an Sy message to the OCS to terminate the Sy session at the OCS;
receiving an Sy message from an OCS indicating the termination of the Sy session at the OCS.
3 . The method of claim 1 , further comprising:
receiving a message to terminate the Sy session;
terminating the Sy session;
receiving a first Sy message from an OCS relating to the terminated Sy session; and
in response sending a second Sy answer message to the OCS including a result code indicating an unknown session ID.
4 . The PCRN of claim 3 , wherein the first Sy message is not delivered to the OCS.
5 . The method of claim 1 , wherein sending the first Sy SLR includes not specifying any policy counters and wherein receiving the first SLA includes receiving all the policy counters and associated status reports for the subscriber, and further comprising
determining required policy counters based upon the policy counter statuses;
sending a second Sy SLR to the OCS for the required policy counters; and
receiving a second SLA including status reports for the required policy counters.
6 . The method of claim 1 , further comprising sending a Gx credit and control answer (CCA) to a policy and charging enforcement node (PCEN).
7 . The method of claim 6 , the CCA includes policy and charging control PCC rules based upon the policy decision.
8 . The method of claim 1 , further comprising receiving a Gx credit and control request (CCR) from a policy and charging enforcement node (PCEN) prior to sending the first SLR.
9 . A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps of claim 1 .
10 . A method performed by a policy and charging rules node (PCRN), the method comprising:
creating an Sy session;
storing policy counter data in the Sy session;
making a policy decision based upon policy counter statuses associated with the Sy session;
receiving a message to terminate the Sy session;
terminating the Sy session including deleting the stored policy counter data;
sending an Sy message to the OCS to terminate the Sy session at the OCS;
receiving an Sy message from an OCS indicating the termination of the Sy session at the OCS.
11 . The method of claim 10 , further comprising sending quality of service policy and charging (PCC) rules to a PCEN based upon the policy decision.
12 . A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps of claim 10 .
13 . The method performed by a policy and charging rules node (PCRN), the method comprising:
receiving a Gx CCR terminate message related to an Sy session;
cleaning up the Sy session including deleting stored policy counter data based upon the Gx CCR terminate message;
receiving a status notification report (SNR) relating to the cleaned up Sy session;
sending a status notification answer (SNA) indicating an unknown Sy session ID to the OCS.
14 . The PCRN of claim 13 , wherein the OCS cleans up an OCS session based upon the SNA.
15 . The PCRN of claim 13 , wherein an STR is not delivered to the OCS.
16 . The PCRN of claim 13 , further comprising making a policy decision based upon policy counter statuses associated with the Sy session.
17 . The method of claim 13 , further comprising sending quality of service policy and charging (PCC) rules to a PCEN based upon the policy decision.
18 . A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps of claim 13 .