[{"name":"S2-1902940","title":"LS from CT WG4: Clarification request on NF authorization in UE Reachability Notification Request procedure","source":"CT WG4","contact":"Laurent Dubesset","contact-id":47514,"tdoctype":"LS in","for":"Action","abstract":"C4-188044 was submitted at CT WG4#87 but not concluded. It aimed at specifying the stage 3 required changes to TS 29.503 to allow the UDM informing the AMF of the identities of the Network Functions that are authorized to request notifications on this UE's reachability (steps 0a or 0b of UE Reachability Notification Request procedure defined in TS23.502, sub-clause 4.2.5.2). During the discussions, concerns were raised by some delegates whether this procedure is needed at all. Some delegates considered that it is redundant as OAUTH2.0 mechanism defined in TS 33.501 already provides a framework for Authorization of NF service access. In addition, it was commented that the FQDN is not a suitable identity for NF authorization as an HTTP client (in opposition to a Diameter one) doesn't set any origin identity such as a FQDN when sending a request to an HTTP server. The NF Instance Id of the NF Service Consumer is the primary identity for an NF when registering in the NRF and when requesting an OAUTH2.0 token. Action: CT WG4 kindly asks SA WG2 group to: - Clarify the use cases or the service layer consideration for the procedure of UDM providing authorized NF list (steps 0a or 0b of UE Reachability Notification Request procedure defined in TS23.502, sub-clause 4.2.5.2) and AMF using such list for subsequent authorization check, and - Confirm that the authorisation framework defined in TS 33.501 is not sufficient for authorizing NF to request UE's reachability. - If so, confirm that the list of the identities of the authorized Network Functions is a subscriber specific parameter and therefore is part of subscription information that may be stored in the UDR. - If so, remove the FQDN as a possible NF identity in TS 23.502, clause 4.2.5.2.","secretary_remarks":"Postponed S2-1901414 from S2#131. This LS was postponed.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14930,"status":"postponed","reservation_date":"2019-03-19 06:14:10","uploaded":"2019-03-29 07:20:30","revisionof":"S2-1901414","revisedto":"S2-1904848","release":"Rel-15","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"SA WG3","lsoriginalls":"C4-188603","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1902940.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1903082","title":"LS from SA WG5: LS on PCF and NEF discovery for Edge Computing","source":"SA WG5","contact":"Maurice Pope","contact-id":648,"tdoctype":"LS in","for":"Action","abstract":"SA WG5 is working on a study on the management aspects of Edge Computing (EC). During the study, SA WG5 has discussed the issue below on PCF and NEF discovery for EC. According to TS 23.501, an AF may send requests to influence SMF routing decisions for traffic of PDU Session for EC. The AF requests are sent to the PCF via N5 interface (in case the requests target specific on-going PDU Sessions of individual UE(s), for an AF allowed to interact directly with the 5GC NFs) or via the NEF (in case the requests target existing or future PDU Sessions of multiple UE(s) or of any UE, or the AF is not authorized to access 5GC directly). Therefore, the AF needs to be able to access the PCF and NEF, in order to send the requests above-mentioned. SA WG5 understanding is that the PCF discovery for EC has already been supported in 5GC. The PCF can be discovered by an authorized AF via BSF (Binding Support Function), and the BSF can be discovered via NRF or the BSF information is configured locally to AF. However there is no mechanism defined by SA WG2 for an AF to access the NEF. SA WG5 requests SA WG2 to confirm if SA WG5 understanding is correct and let SA WG5 know whether SA WG2 has a further plan to define the solution to support AF to access the NEF. Action: SA WG5 would like to ask SA WG2 to confirm if SA WG5 understanding on the issue aforementioned is correct, and let SA WG5 know whether SA WG2 has a further plan to define the solution to support AF to access the NEF.","secretary_remarks":"Response drafted in S2-1903870. Final response in S2-1904837.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14870,"status":"replied to","reservation_date":"2019-03-29 08:08:04","uploaded":"2019-03-29 10:31:48","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"","lsoriginalls":"S5-192454","lsreply":"S2-1904837, S2-1904837","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1903082.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1903206","title":"Handling TS 23.502 Section 5 for Rel-16 onwards","source":"Cisco Systems","contact":"Irfan Ali","contact-id":74090,"tdoctype":"discussion","for":"Endorsement","abstract":"Proposed to void TS 23.502 Section 5 in Rel-16.","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14860,"status":"noted","reservation_date":"2019-04-01 01:09:24","uploaded":"2019-04-02 04:47:28","revisionof":"","revisedto":"","release":"Rel-15","crspec":23.502,"crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1903206.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1903870","title":"LS reply on PCF and NEF discovery for Edge Computing","source":"Intel","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5. CC: SA WG6.","secretary_remarks":"Response to S2-1903082. LATE DOC: Rx: 02\/04, 17:55. Revised off-line to S2-1904628.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14880,"status":"revised","reservation_date":"2019-04-02 14:57:04","uploaded":"2019-04-02 15:54:30","revisionof":"","revisedto":"S2-1904628","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1903870.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904628","title":"LS reply on PCF and NEF discovery for Edge Computing","source":"Intel","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5. CC: SA WG6.","secretary_remarks":"Revision of S2-1903870. Revised in parallel session to S2-1904629.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14890,"status":"revised","reservation_date":"2019-04-15 10:42:53","uploaded":"2019-04-15 11:18:01","revisionof":"S2-1903870","revisedto":"S2-1904629","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1904628.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904629","title":"LS reply on PCF and NEF discovery for Edge Computing","source":"SA WG2","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5. CC: SA WG6.","secretary_remarks":"Revision of S2-1904628. Revised in parallel session to S2-1904725.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14900,"status":"revised","reservation_date":"2019-04-15 10:42:53","uploaded":"2019-04-15 11:18:01","revisionof":"S2-1904628","revisedto":"S2-1904725","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1904629.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904725","title":"LS reply on PCF and NEF discovery for Edge Computing","source":"SA WG2","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5. CC: SA WG6.","secretary_remarks":"Revision of S2-1904629. Agreed in parallel session. Revised to S2-1904830.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14910,"status":"revised","reservation_date":"2019-04-15 10:44:20","uploaded":"2019-04-15 11:18:02","revisionof":"S2-1904629","revisedto":"S2-1904830","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1904725.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904830","title":"LS reply on PCF and NEF discovery for Edge Computing","source":"SA WG2","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5. CC: CT WG4, SA WG6.","secretary_remarks":"Revision of S2-1904725. For e-mail approval. e-mail revision 4 approved. Revised to S2-1904837.","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14920,"status":"revised","reservation_date":"2019-04-15 10:49:43","uploaded":"2019-04-15 11:18:03","revisionof":"S2-1904725","revisedto":"S2-1904837","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5","Cc":"CT WG4, SA WG6.","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1904830.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904837","title":"LS reply on PCF and NEF discovery for Edge Computing","source":"SA WG2","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5. CC: CT WG4, SA WG6.","secretary_remarks":"Revision of S2-1904830. Approved","agenda_item_sort_order":28,"ainumber":"6.5.11","ainame":"Framework functions","tdoc_agenda_sort_order":14921,"status":"approved","reservation_date":"2019-04-19 10:27:31","uploaded":"2019-04-19 10:29:50","revisionof":"S2-1904830","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S2-1903082","lsto":"SA WG5","Cc":"CT WG4, SA WG6","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_132_XiAn\/Docs\/S2-1904837.zip","group":"S2","meeting":"S2-132","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]