[{"name":"S2-1904860","title":"LS from CT WG1: Reply LS on PARLOS RAN impacts","source":"CT WG1","contact":"Roozbeh Atarius","contact-id":62608,"tdoctype":"LS in","for":"Action","abstract":"CT WG1 would like to thank SA WG2 for the LS on RAN impacts of the PARLOS feature. SA WG2 has discussed the following alternative NAS based solution for informing the E-UTRAN that the access is for RLOS and has asked for feedback: 2) During the RRC connection establishment procedure, the UE uses a special decorated S-TMSI\/M-TMSI (or a reserved S-TMSI\/M-TMSI bit sequence) in the InitialUE-Identity information element. It means that this S-TMSI\/M-TMSI is not derived from GUTI even if GUTI is available in the UE. At the NAS level, the UE includes the GUTI (if available) in the NAS message. The impacts of this alternative (including Service Request procedure, MME selection in case of UE context already existing in CN, etc.) have to be studied. CT WG1 discussed the alternative NAS based solution and would like to provide the following feedback. The NAS based solution is feasible from a CT WG1 point of view. The special decorated S-TMSI\/M-TMSI for PARLOS has significance only for network supporting PARLOS. Networks not supporting PARLOS can use any S-TMSI\/M-TMSI values for non-PARLOS purposes (including any special decorated S-TMSI\/M-TMSI for PARLOS which is used in networks supporting PARLOS). The UE NAS layer can indicate decorated S-TMSI value used for RLOS to the lower layer only in case the UE identity is included in the initial NAS signalling message. The following possible impacts on the NAS procedures have been identified: - The UE and the MME shall be configured with a decorated S-TMSI value used for RLOS. - The UE shall always use EXTENDED SERVICE REQUEST message during the Service Request procedure. - Upon reception of S1-AP message carrying decorated S-TMSI value for RLOS, the MME shall ignore the S-TMSI from the S1-AP message. The MME shall process the encapsulated NAS message to derive the M-TMSI from the GUTI without performing the integrity check first. - The NAS layer in the UE will need to provide the RRC layer of the UE with the decorated S-TMSI value for RLOS in addition to GUMMEI when establishing NAS signalling connection and the tracking area of the current cell is not in the list of tracking areas that the UE previously registered in the MME during the NAS signalling connection establishment. - It needs to be studied what information the NAS layer in the UE needs to provide to the RRC layer of the UE when establishing NAS signalling connection and tracking area updating or combined tracking area updating procedure for load balancing purposes. Action: SA WG2 is kindly requested to take this LS into account.","secretary_remarks":"Postponed S2-1903037 from S2#132. Response drafted in S2-1905881.","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24030,"status":"available","reservation_date":"2019-04-23 07:51:29","uploaded":"2019-04-23 11:35:40","revisionof":"S2-1903037","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"TSG RAN, RAN WG2, RAN WG3, TSG SA","lsoriginalls":"C1-191726","lsreply":"S2-1906806","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1904860.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904864","title":"LS from RAN WG2: Reply LS on PARLOS RAN impacts","source":"RAN WG2","contact":"Malgorzata Tomala","contact-id":68485,"tdoctype":"LS in","for":"Action","abstract":"RAN WG2 would like to thank SA WG2 for their LS on potential impacts of PARLOS feature to RAN. RAN WG2 discussed the alternate solutions for PARLOS support in RAN WG2 and would like to provide the following feedback for the questions raised: - Indicating RLOS in establishment cause is not feasible. - Using LCID value is not feasible from RAN WG2 perspective. - No problem with S-TMSI\/M-TMSI solution has been identified from RAN WG2 perspective, but further investigation would be required from other groups, e.g. CT WG1. - Broadcasting an RLOS indication is straightforward, feasible technically and can be done within the Rel-16 timeframe. It should be noted the feasibility assessment has been made from non NB-IoT perspective. Action: RAN WG2 respectfully ask SA WG2 and CT WG1 to take the RAN WG2 input into account for further work.","secretary_remarks":"Postponed S2-1903058 from S2#132. Response drafted in S2-1905881","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24040,"status":"available","reservation_date":"2019-04-23 07:51:29","uploaded":"2019-04-23 11:35:40","revisionof":"S2-1903058","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2, CT WG1","Cc":"TSG SA, RAN WG3","lsoriginalls":"R2-1902569","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1904864.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1904892","title":"LS from RAN WG3: Reply LS on PARLOS RAN impacts","source":"RAN WG3","contact":"Steven Xu","contact-id":74103,"tdoctype":"LS in","for":"Action","abstract":"RAN WG3 would like to thank RAN and SA WG2 for their LS on potential impacts of PARLOS feature to RAN. RAN WG3 discussed the impact to RAN WG3, and concluded that this feature can be supported within Rel-16 timeframe. In addition, in case there is a homogeneous support of the regulatory RLOS feature in the MME pool, there may be no impact in RAN WG3. There may be no need for an RLOS indication from the UE. Action: RAN WG3 respectfully ask SA WG2 to take the RAN WG3 input into account for further work.","secretary_remarks":"Response drafted in S2-1905881","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24050,"status":"available","reservation_date":"2019-04-23 11:45:51","uploaded":"2019-04-23 13:14:44","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"TSG RAN, SA WG2","Cc":"RAN WG2, CT WG1","lsoriginalls":"R3-191995","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1904892.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1905069","title":"Avoiding UE indicating RLOS access in RRC Signaling","source":"Ericsson, Intel, Sprint, Samsung, T-Mobile USA","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add requirement of homogeneous support of RLOS features in the MME pool. Add a note that eNB can set a broadcast indication indicating whether RLOS UEs are allowed or not in the cell during situations that there is lack of resource in E-UTRAN to serve RLOS UEs. Remove the requirement that UE indicates RLOS access in RRC.","secretary_remarks":"Revision of S2-1904090 from S2#132. Revised in parallel session to S2-1905880.","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24070,"status":"revised","reservation_date":"2019-05-04 13:32:05","uploaded":"2019-05-07 13:27:50","revisionof":"S2-1904090","revisedto":"S2-1905880","release":"Rel-16","crspec":23.401,"crspecversion":"16.2.0","workitem":[{"winame":"PARLOS"}],"crnumber":3502.0,"crrevision":2.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1905069.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1905279","title":"RLOS indication in RAN","source":"Qualcomm Incorporated, Charter Communications","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Implements the solution for using a special S-TMSI\/M-TMSI to indicate RLOS request in RRC","secretary_remarks":"Not Handled","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24090,"status":"not treated","reservation_date":"2019-05-06 14:30:38","uploaded":"2019-05-07 12:56:08","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.401,"crspecversion":"16.2.0","workitem":[{"winame":"PARLOS"}],"crnumber":3511.0,"crrevision":"","crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1905279.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1905880","title":"Avoiding UE indicating RLOS access in RRC Signaling","source":"Ericsson, Intel, Sprint, Samsung, T-Mobile USA","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add requirement of homogeneous support of RLOS features in the MME pool. Add a note that eNB can set a broadcast indication indicating whether RLOS UEs are allowed or not in the cell during situations that there is lack of resource in E-UTRAN to serve RLOS UEs. Remove the requirement that UE indicates RLOS access in RRC. Add a requirement that the UE can indicate RLOS in the RRCCOnnectionSetupComplete message that can be used by eNB to select an upgraded MME","secretary_remarks":"Revision of S2-1905069. For e-mail approval.","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24080,"status":"revised","reservation_date":"2019-05-15 17:17:12","uploaded":"2019-05-19 19:57:54","revisionof":"S2-1905069","revisedto":"S2-1906807","release":"Rel-16","crspec":23.401,"crspecversion":"16.2.0","workitem":[{"winame":"PARLOS"}],"crnumber":3502.0,"crrevision":3.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1905880.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1905881","title":"[DRAFT] Reply LS to RAN WG3: Reply LS on PARLOS RAN impacts","source":"SA WG2","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"LS out","for":"Approval","abstract":"Response to S2-1904860, S2-1904864 and S2-1904892. To: CT WG1, RAN WG2, RAN WG3. CC: TSG RAN.","secretary_remarks":"Created in parallel session. Response to S2-1904860, S2-1904864 and S2-1904892. For e-mail approval.","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24060,"status":"revised","reservation_date":"2019-05-15 17:17:13","uploaded":"2019-05-19 19:57:54","revisionof":"","revisedto":"S2-1906806","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"PARLOS"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG1, RAN WG3, TSG RAN","Cc":"RAN WG2, CT WG1","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1905881.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1906806","title":"Reply LS on PARLOS RAN impacts","source":"SA WG2","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"LS out","for":"Approval","abstract":"To: TSG RAN, RAN WG2, RAN WG3. CC: CT WG1, TSG SA. Attachments: TS 23.401 CR 3502 (S2-1906807)","secretary_remarks":"e-mail revision 2 of S2-1906344. Approved","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24440,"status":"available","reservation_date":"2019-05-24 14:08:22","uploaded":"2019-05-24 14:10:05","revisionof":"S2-1905881","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"PARLOS"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S2-1904860","lsto":"TSG RAN, RAN WG2, RAN WG3","Cc":"CT WG1, TSG SA","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1906806.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1906807","title":"Avoiding UE indicating RLOS access in RRC Signaling","source":"Ericsson, Intel, Sprint, Samsung, T-Mobile USA","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add requirement of homogeneous support of RLOS features in the MME pool. Add a note that eNB can set a broadcast indication indicating whether RLOS UEs are allowed or not in the cell during situations that there is lack of resource in E-UTRAN to serve RLOS UEs. Remove the requirement that UE indicates RLOS access in RRC. Add a requirement that the UE can indicate RLOS in the RRCCOnnectionSetupComplete message that can be used by eNB to select an upgraded MME","secretary_remarks":"e-mail revision 2 of S2-1905880. Approved","agenda_item_sort_order":42,"ainumber":"6.16","ainame":"System enhancements for Provision of Access to Restricted Local Operator Services by Unauthenticated UEs (PARLOS)","tdoc_agenda_sort_order":24470,"status":"agreed","reservation_date":"2019-05-24 14:08:22","uploaded":"2019-05-24 14:10:05","revisionof":"S2-1905880","revisedto":"","release":"Rel-16","crspec":23.401,"crspecversion":"16.2.0","workitem":[{"winame":"PARLOS"}],"crnumber":3502.0,"crrevision":4.0,"crcategory":"C","tsg_crp":"SP-190424","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_133_Reno\/Docs\/S2-1906807.zip","group":"S2","meeting":"S2-133","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]