Section: 4.11.0a.2 Interaction with PCC
Content: When interworking with 5GS is supported and a "SMF+PGW-C" is selected for a PDN connection, policy interactions between PDN GW and PCRF specified in TS 23.401[ General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access ]  [13] are replaced by equivalent interactions between SMF+PGW-C and PCF as follows: - IP-CAN Session Establishment procedure defined in TS 23.203[ Policy and charging control architecture ]  [24] is replaced by SM Policy Association Establishment Procedure as described in clause 4.16.4.The SMF+PGW-C includes the information elements received in Create Session Request message into the Npcf_SMPolicyControl_Create Service as follows: the SUPI contains the IMSI, the DNN contains the APN, the PEI contains either the IMEISV or IMEI, the Session AMBR contains the APN-AMBR and the default QoS information that contains the default EPS bearer QoS, note that QCI values are mapped into 5QI values. The SMF+PGW-C may receive PCC Rules and PDU Session Policy Information, 5G QoS information in the PCC Rule and in PDU Session Policy Information are mapped into EPS QoS information as defined in clause 4.11.1.1 and Annex C. - (PCEF-initiated) IP-CAN Session Modification procedure defined in TS 23.203[ Policy and charging control architecture ]  [24] is replaced by SM Policy Association Modification procedure as described in clause 4.16.5.1. The Policy Control Request Triggers are specified in clause 6.1.3.5 of TS 23.503[ Policy and charging control framework for the 5G System (5GS); Stage 2 ]  [20]. - The SMF+PGW-C includes the QoS related information elements received in Modify Bearer Request or Modify Bearer Command message into the Npcf_SMPolicyControl_Update Service with the following modifications, the subscribed Session AMBR includes the subscribed APN-AMBR and subscribed default QoS information includes the default EPS bearer QoS, note that QCI values are mapped into 5QI values. The SMF+PGW-C may receive PCC Rules and PDU Session Policy Information, 5G QoS information in the PCC Rule and in PDU Session Policy Information are mapped into EPS QoS information as defined in clause 4.11.1.1 and Annex C. - The SMF+PGW-C includes the location related information received in Modify Bearer Request (as specified in clause 5.9.2 of TS 23.401[ General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access ]  [13]) into Npcf_SMPolicyControl_Update if the corresponding Policy Control Request Triggers (i.e. Location change, Change of UE presence in Presence Reporting Area) are provisioned. - The SMF+PGW-C includes the information elements received in Delete Bearer Command message into the Npcf_SMPolicyControl_Update Service. - (PCRF-initiated) IP-CAN Session Modification procedure defined in TS 23.203[ Policy and charging control architecture ]  [24] is replaced by SM Policy Association Modification procedure as described in clause 4.16.5.2. The SMF+PGW-C may receive PCC Rules and PDU Session Policy Information, 5G QoS information in the PCC Rule and in PDU Session Policy Information are mapped into EPS QoS information as defined in clause 4.11.1.1 and Annex C. - IP-CAN Session Termination procedure defined in TS 23.203[ Policy and charging control architecture ]  [24] is replaced by SM Policy Association Termination procedure as described in clause 4.16.6. The SMF+PGW-C includes the information elements received in Delete Session Request message by the SMF+PGW-C into the Npcf_SMPolicyControl_Delete Service. URSP provisioning may be supported in EPS and the procedures are specified in clause 4.11.0a.2a.