[{"name":"S2-2100037","title":"LS from CT WG1: LS on interworking to 5GS with N26 due to UE\u2019s N1 mode capability disabling\/enabling","source":"CT WG1","contact":"Lin Shu","contact-id":43310,"tdoctype":"LS in","for":"Action","abstract":"CT WG1 has defined disabling and re-enabling of UE's N1 mode capability for 3GPP access (see TS 24.501 subclause 4.9.2). After the UE has disabled its N1 mode capability for 3GPP access, the UE will move to 4G and indicate EPC that N1 mode not supported (i.e. the UE does not support 5GC NAS). With above, CT WG1 has discussed following sceanrio: (1) The UE operating in single-registration mode has disabled its N1 mode capability when registered in 5G and then moves to 4G of the current PLMN with N26 interface supported. (2) The UE initiates an EPS attach or TAU procedure in 4G during which the UE will indicate N1 mode is not supported. (3) Hereafter, the UE requests to establish a new PDN connection in 4G during which the UE will not generate the PDU session ID included in the (e)PCO IE to the network and the network will not include the mapped PDU session parameters (e.g. QoS flow descriptions, Session-AMBR, QoS rules) included in the (e)PCO IE to the UE. (4) The UE re-enables its N1 mode capability in 4G and then moves back to 5G. As in step (3), there is no mapped PDU session parameters included in the PDN connection, this PDN connection cannot be transferred to 5G in step (4). Session continuity for 5GS interworking was broken. CT WG1 would like to ask SA WG2: (1) If in above step (3), a combo PGW-C+SMF was selected for the PDN connection, whether and how to maintain the session continuity for this PDN connection when moving back to 5G? (2) If in above step (3), a standalone PGW was selected for the PDN connection, whether and how to maintain the session continuity for this PDN connection when moving back to 5G?. Action: CT WG1 kindly asks SA WG2 to answer above questions.","secretary_remarks":"Responses drafted in S2-2100100, S2-2100130, S2-2100325 and S2-2100905. Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11790,"status":"postponed","reservation_date":"2021-01-13 10:03:18","uploaded":"2021-01-13 14:55:02","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"","lsoriginalls":"C1-207531","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100037.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100072","title":"EBI allocation for Emergency PDU Sessions","source":"Nokia, Nokia Shanghai Bell","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add the cases of 'Initial emergency request' and 'Existing emergency PDU session'","secretary_remarks":"Approved","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11870,"status":"agreed","reservation_date":"2021-01-18 09:18:04","uploaded":"2021-02-18 19:04:26","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":2457.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-210082","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100072.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100077","title":"Correcting AMF specifications related with the FQDN for the S5\/S8 interface of the SMF+PGW-C","source":"Nokia, Nokia Shanghai Bell","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: First issue: For the case of an 'Existing PDU Session', If the AMF did not receive from the UDM a SMF-ID but a FQDN for the S5\/S8 interface of the SMF+PGW-C then the AMF determines the SMF as defined in clause 4.11. Second issue: see reason for change","secretary_remarks":"r06 agreed. Revised to S2-2101567.","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11880,"status":"revised","reservation_date":"2021-01-18 09:18:08","uploaded":"2021-02-18 19:44:27","revisionof":"","revisedto":"S2-2101567","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":2458.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100077.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100082","title":"Add steps for releasing resources for indirect forwarding in Handover Cancel","source":"NEC","contact":"Toshiyuki Tamura","contact-id":17921,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: This CR proposes to fix two issues as described in the reason of change. For the issue 1, when the source AMF receives the Relocation Cancel Response message from the target MME, the AMF invokes the Nsmf_PDUSession_UpdateSMContext to the SMF to release resources. (Step 7b-7d) Note that this CR proposes the step 7b as mandatory step (solid line) in the 5GS to EPS handover procedure._x00B_Reason: During the 5GS to EPS handover procedure, the source UPF has to prepare the CN tunnels for each EPS bearer (Step 2b in section 4.11.1.2.1) because existing CN tunnels towards the NG-RAN cannot be reused after handover as the GTP-U header information with the E-URAN is different from the one used with the NG-RAN. Once the handover is cancelled, the prepared resources (by step 2b in section 4.11.1.2.1) has to be released regardless of direct forwarding or indirect forwarding. For the issue 2, after the target SGW-C receives the Delete Indirect Data Forwarding Tunnel Request message from the target MME, the target SGW-C releases the resources for indirect forwarding in the SGW-U. (Step 8a) In addition, this CR proposes some updates to the Figure 4.11.1.2.3-1. Add 'EPS:' as a header for step 7. Change the node names 'Target V-SMF' and 'Target V-UPF' to 'V-SMF' and 'V-UPF' respectively to make this figure works for both directions, 5GS to EPS HO and EPS to 5GS HO. Note that these nodes can be considered as source nodes for 5GS to EPS HO case.","secretary_remarks":"r03 agreed. Revised to S2-2101568.","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11900,"status":"revised","reservation_date":"2021-01-26 02:26:29","uploaded":"2021-02-16 23:57:19","revisionof":"","revisedto":"S2-2101568","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"TEI16"}],"crnumber":2459.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100082.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100100","title":"[DRAFT] LS on interworking to 5GS with N26 due to UE's N1 mode capability disabling\/enabling","source":"Nokia, Nokia Shanghai Bell","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"LS out","for":"Approval","abstract":"Draft LS on interworking to 5GS with N26 due to UE's N1 mode capability disabling\/enabling","secretary_remarks":"Response to S2-2100037. Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11800,"status":"postponed","reservation_date":"2021-02-07 17:16:25","uploaded":"2021-02-18 20:01:02","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"5GProtoc17"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG1","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100100.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100101","title":"Solving interworking to 5GS with N26 issue due to UE's N1 mode capability disabling\/enabling","source":"Nokia, Nokia Shanghai Bell","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: At EPS to 5GS mobility - the UE considers as released the PDN connections that were established over EPS while N1 mode capability was disabled, - The MME does not transfer to 5GS a PDN connection that was established over EPC while N1 mode capability was disabled on the UE. At mobility to 5GS, For PDN connections which are anchored in a standalone PGW, the MME initiates PDN connection release procedure as specified in TS\u00a023.401: there is no need to have dedicated configuration here.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11740,"status":"postponed","reservation_date":"2021-02-07 17:16:25","uploaded":"2021-02-18 20:01:02","revisionof":"","revisedto":"","release":"Rel-17","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":2465.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100101.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100108","title":"LS from RAN WG3: E-RABs that cannot be handed over to 2G\/3G or 5G","source":"RAN WG3","contact":"Nianshan Shi","contact-id":45408,"tdoctype":"LS in","for":"Action","abstract":"RAN WG3 has discussed the below issue: when perform SRVCC from 4G to 3G, if the UE was earlier handed over from 5G and having the PS bearer (no voice) from 5G, eNB would perform SRVCC with two Iu connections (Iu-CS and Iu-PS) and informs the target RNC. But the Forward Relocation Request message may never be sent to the target node due to the QoS flow established in 5G does not contain Transaction Identifier (TI) and this TI is mandatory in the Forward Relocation Request message. This causes the SRVCC delay and in the worst case could even cause failure. The issue is general, with the introduction of NR, the PS bearers set up at 5G may not be able to handover to 2G\/3G or vice versa, e.g.: 5G without TI cannot be handed over to 2\/3G. Similarly, some E-RABs from 2G\/3G cannot be handed over to 5G. The mobility procedure may be delayed and in the worst case could fail. RAN WG3 would like to ask SA WG2 to investigate how we can solve the problem,. Action: RAN WG3 kindly asks feedback and guidance from SA WG2.","secretary_remarks":"Responses drafted in S2-2100227 and S2-2100327. Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11840,"status":"postponed","reservation_date":"2021-02-08 12:33:20","uploaded":"2021-02-08 12:41:58","revisionof":"","revisedto":"","release":"Rel-15","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"CT WG1, CT WG4","lsoriginalls":"R3-211273","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100108.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100130","title":"[DRAFT] Reply LS on interworking to 5GS with N26 due to UE's N1 mode capability disabling\/enabling","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"LS out","for":"Approval","abstract":"Reply LS on interworking to 5GS with N26 due to UE's N1 mode capability disabling\/enabling","secretary_remarks":"Response to S2-2100037. Noted","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11810,"status":"noted","reservation_date":"2021-02-10 09:51:58","uploaded":"2021-02-18 08:42:52","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG1","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100130.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100131","title":"UE request bearer resource modification due to N1 capability change","source":"Huawei, HiSilicon, MediaTek Inc.","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Enhance the UE request bearer resource modification procedure to support the CN providing the mapped 5GS QoS parameters to the UE.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11750,"status":"postponed","reservation_date":"2021-02-10 09:51:58","uploaded":"2021-02-18 08:42:52","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2469.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100131.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100227","title":"[DRAFT] LS on E-RABs that cannot be handed over to 2G\/3G or 5G","source":"Nokia, Nokia Shanghai Bell","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"LS out","for":"Approval","abstract":"LS on E-RABs that cannot be handed over to 2G\/3G or 5G","secretary_remarks":"Response to S2-2100108. Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11850,"status":"postponed","reservation_date":"2021-02-13 14:37:09","uploaded":"2021-02-18 08:29:05","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"5GS_Ph1"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"RAN WG3","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100227.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100228","title":"SRVCC procedure in case of PDN connections without TI","source":"Nokia, Nokia Shanghai Bell","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: For 5G SRVCC to 3G it is described in 23.501 \u00a7 5.17.2.4 'Mobility between 5GS and GERAN\/UTRAN' that 'After the 5G SRVCC to UTRAN, all the PDU sessions of the UE are released'; The same behaviour may take place at the indirect mobility 5G ( 4G ( (SRVCC) 3G Thus at SRVCC from EPC to 3G the MME issues a Forward Relocation Request message to the SGSN but this Forward Relocation Request does not transfer to the SGSN PDN connections for which no TI has been negotiated with the UE (PDN connections corresponding to PDU Sessions established over 5GS). No impact is thus expected to the ENB.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11760,"status":"postponed","reservation_date":"2021-02-13 14:37:10","uploaded":"2021-02-18 08:29:05","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2477.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100228.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100325","title":"[DRAFT] Reply LS on interworking to 5GS with N26 due to UE's N1 mode capability disabling\/enabling","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"LS out","for":"Approval","abstract":"This LSout asks for clarification of the use case.","secretary_remarks":"Response to S2-2100037. Merged into S2-2100130 (noted)","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11820,"status":"merged","reservation_date":"2021-02-16 21:06:17","uploaded":"2021-02-18 20:54:20","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"5GProtoc17"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG1","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100325.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100327","title":"[DRAFT] Reply LS on E-RABs that cannot be handed over to 2G\/3G or 5G","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"LS out","for":"Approval","abstract":"This LSout replies with solutions to resolve the issue brought up in the Lsin.","secretary_remarks":"Response to S2-2100108. Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11860,"status":"postponed","reservation_date":"2021-02-16 21:06:18","uploaded":"2021-02-18 20:54:21","revisionof":"","revisedto":"","release":"Rel-15","crspec":"","crspecversion":"","workitem":[{"winame":"TEI15"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"RAN WG3","Cc":"CT WG1, CT WG4","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100327.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100328","title":"SRVCC when 5GS interworking is supported","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: MME proceeds with PS HO even if MME knows that the PS HO is deemed to fail, e.g. when UE was previously in 5GS. Clarify that MME constructs in Forward Relocaton Request message (to SGSN) the Transaction Identifier IE if it is not available.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11920,"status":"postponed","reservation_date":"2021-02-16 21:06:18","uploaded":"2021-02-18 20:54:21","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.216","crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":368.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100328.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100329","title":"PS HO from EUTRAN to GERAN\/UTRAN or to NG-RAN","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: During E-RAB setup (e.g. in Initial Attach, Service Request, Handover), if the MME determines that handover to GERAN\/UTRAN is not possible based on e.g. when 5GS interworking is supported for certain PDN connection(s), UE was previously in 5GS, or If the MME determines that handover to NG-RAN is not possible for certain PDN connection(s) based on e.g. 5GS interworking is not supported, or UE was previously in 2G\/3G, the MME indicates such decisions to the eNB for each E-RAB over S1AP.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11930,"status":"postponed","reservation_date":"2021-02-16 21:06:19","uploaded":"2021-02-18 20:54:21","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":2494.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100329.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100546","title":"Clarify on subscription update for 5GS\/EPS interworking","source":"Samsung","contact":"DongYeon Kim","contact-id":87763,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: PCF+PCRF triggers corresponding actions as specified in sub-clause 4.16.6 in TS 23.502 when subscription is updated regarding S-NSSAI associated with the PDN connections.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11940,"status":"postponed","reservation_date":"2021-02-18 08:19:29","uploaded":"2021-02-18 08:24:45","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.501","crspecversion":"16.7.0","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":2597.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100546.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100900","title":"5GC-EPC interworking with N26 due to N1\/S1 mode capability disabling\/re-enabling.","source":"Qualcomm Incorporated","contact":"Sebastian Speicher","contact-id":72922,"tdoctype":"discussion","for":"Agreement","abstract":"5GC-EPC interworking with N26 due to N1\/S1 mode capability disabling\/re-enabling","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11770,"status":"postponed","reservation_date":"2021-02-18 14:35:44","uploaded":"2021-02-18 20:31:28","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100900.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100902","title":"Clarify PDU session ID signaling in EPS","source":"Qualcomm Incorprorated","contact":"Sebastian Speicher","contact-id":72922,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Clarify in 5.15.7.1 that During PDN connection establishment in the EPC, the UE allocates the PDU Session ID and sends it to the SMF+PGW-C via PCO regardless if N1 mode is enabled or disabled.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11780,"status":"postponed","reservation_date":"2021-02-18 14:39:17","uploaded":"2021-02-18 20:31:28","revisionof":"","revisedto":"","release":"Rel-17","crspec":"23.501","crspecversion":"16.7.0","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI17"}],"crnumber":2663.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100902.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100905","title":"[DRAFT] Reply LS on interworking to 5GS with N26 due to UE's N1 mode capability disabling\/enabling","source":"Qualcomm Incorporated","contact":"Sebastian Speicher","contact-id":72922,"tdoctype":"LS out","for":"Approval","abstract":"To: CT WG1. CC:","secretary_remarks":"Response to S2-2100037. Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11830,"status":"postponed","reservation_date":"2021-02-18 14:44:58","uploaded":"2021-02-18 20:31:28","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"TEI17"},{"winame":" 5GProtoc17"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG1","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100905.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100920","title":"EPC interworking with N26 due to UE's N1 mode capability disabling\/enabling","source":"Samsung","contact":"Jungshin Park","contact-id":65750,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: A UE or the network may release and re-establish PDN connection(s) to update 5G session parameters for interworking, after completion of TAU due to UE capability change. Whether the UE stores the 5G session parameters, which were received in 5GS, after disabling the N1 mode depends on UE implementation.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11950,"status":"postponed","reservation_date":"2021-02-18 15:24:02","uploaded":"2021-02-18 15:56:30","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.501","crspecversion":"16.7.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2666.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100920.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2100929","title":"EPC interworking with N26 due to UE's N1 mode capability disabling\/enabling","source":"Samsung","contact":"Jungshin Park","contact-id":65750,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: A UE or the network may release and re-establish PDN connection(s) to update 5G session parameters for interworking, after completion of TAU due to UE capability change. Whether the UE stores the 5G session parameters, which were received in 5GS, after disabling the N1 mode depends on UE implementation.","secretary_remarks":"Postponed","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11960,"status":"postponed","reservation_date":"2021-02-18 15:43:33","uploaded":"2021-02-18 15:56:30","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2584.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2100929.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2101567","title":"Correcting AMF specifications related with the FQDN for the S5\/S8 interface of the SMF+PGW-C","source":"Nokia, Nokia Shanghai Bell, Ericsson","contact":"Laurent Thiebaut","contact-id":68713,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: First issue: For the case of an 'Existing PDU Session', If the AMF did not receive from the UDM a SMF-ID but a FQDN for the S5\/S8 interface of the SMF+PGW-C then the AMF determines the SMF as defined in clause 4.11. Second issue: see reason for change","secretary_remarks":"Revision of S2-2100077r06. Approved","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11890,"status":"agreed","reservation_date":"2021-03-05 08:05:14","uploaded":"2021-03-05 08:31:19","revisionof":"S2-2100077","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"5GS_Ph1"},{"winame":" TEI16"}],"crnumber":2458.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-210082","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2101567.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2101568","title":"Add steps for releasing resources for indirect forwarding in Handover Cancel","source":"NEC, Ericsson, Nokia, Nokia Shanghai Bell","contact":"Toshiyuki Tamura","contact-id":17921,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: This CR proposes to fix two issues as described in the reason of change. For the issue 1, when the source AMF receives the Relocation Cancel Response message from the target MME, the AMF invokes the Nsmf_PDUSession_UpdateSMContext to the SMF to release resources. (Step 7b-7d) For the issue 2, after the target SGW-C receives the Delete Indirect Data Forwarding Tunnel Request message from the target MME, the target SGW-C releases the resources for indirect forwarding in the SGW-U. (Step 8a) In addition, this CR proposes some updates to the Figure 4.11.1.2.3-1. Add 'EPS:' as a header for step 7. Change the node names 'Target V-SMF' and 'Target V-UPF' to 'V-SMF' and 'V-UPF' respectively to make this figure works for both directions, 5GS to EPS HO and EPS to 5GS HO. Note that these nodes can be considered as source nodes for 5GS to EPS HO case.","secretary_remarks":"Revision of S2-2100082r03. Approved","agenda_item_sort_order":22,"ainumber":"6.9","ainame":"Interworking and Migration","tdoc_agenda_sort_order":11910,"status":"agreed","reservation_date":"2021-03-05 08:05:16","uploaded":"2021-03-05 08:31:19","revisionof":"S2-2100082","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.7.1","workitem":[{"winame":"TEI16"},{"winame":" 5GS_Ph1"}],"crnumber":2459.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-210082","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_143e_Electronic\/Docs\/S2-2101568.zip","group":"S2","meeting":"S2-143-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]