[{"name":"S2-2407395","title":"LS from SA WG3LI: LI considerations for UE-Satellite-UE communications","source":"SA WG3LI","contact":"Tyler Hawbaker","contact-id":81103,"tdoctype":"LS in","for":"Action","abstract":"SA WG3LI is considering the NTN enhancements described in TR 23.700-29 as part of SA WG2 SID FS_5GSAT_Ph3_ARCH. Firstly, SA WG3-LI would like to reconfirm that the requirements in TS 33.126 fully apply to NTNs. SA WG3-LI also confirms that a CSP can be required to perform intercept in the country where the warrant s jurisdiction applies. Additionally, the CSP is required to have the ability to capture and deliver the intercept product without exposing (both confidentiality and undetectability) the LI product to any unauthorized party. SA WG3-LI is unsure if the latter requirement can always be met if former requirement is not. Secondly, SA WG3-LI kindly asks SA WG2 to consider during the analysis and selection of potential solutions for normative work, that if core network functions which have associated LI functions (as described in TS 33.127) are placed onboard a satellite, then the implementation and deployment of those LI functions must meet the requirements set out in TS 33.126. These requirements include the provisioning of targets, identification of targeted communications, and the delivery of LI product in a timely manner. SA WG2 should be aware that as core network functions are deployed onboard satellites, LI-specific functions may also be required on the satellites with their associated security requirements. This may impact the complexity and resource cost of candidate solutions within this study. SA WG3-LI would also like to confirm that NTN architectures with the core network elements (with associated LI components) deployed on a satellite should take into account the need to provision the LI components and deliver LI product to the monitoring facilities on the ground via specified LI interfaces described in TS 33.127 and TS 33.128. SA WG3-LI will need ample time to confirm whether selected solutions for normative work will have LI impacts and whether there are potential regulatory requirements that are unable to be met. SA WG3-LI also expects additional issues arising from the proposed Store and Forward operation solutions as described in TR 23.700-29 (these concerns are addressed in a separate LS (s3i240296)). In both cases, SA WG3-LI would welcome co-ordination with SA WG2 with respect to the ongoing work in this area. Action: SA WG3-LI kindly asks SA WG2 to take the requirement for in-country routing of the target communications flows, and the requirement for LI functions to be present along with their associated network functions on board a satellite, into account when evaluating solutions in TR 23.700-29. SA WG3-LI also kindly asks that candidate solutions related to identified Key Issues receive proper analysis for LI impact and SA WG2 informs SA WG3-LI when solutions are agreed for normative work.","secretary_remarks":"Revision of postponed S2-2405870 from S2#163. Noted in parallel session","agenda_item_sort_order":112,"ainumber":"19.1.1","ainame":"Study on Integration of satellite components in the 5G architecture Phase 3 (FS_5GSAT_Ph3_ARCH)","tdoc_agenda_sort_order":15840,"status":"noted","reservation_date":"2024-06-26 08:28:39","uploaded":"2024-06-27 13:54:03","revisionof":"S2-2405870","revisedto":"","release":"Rel-19","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"SA WG3","lsoriginalls":"S3i240295","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_164_Maastricht_2024-08\/Docs\/S2-2407395.zip","group":"S2","meeting":"S2-164","year":2024,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2407410","title":"LS from RAN WG3: Reply LS on Support of Regenerative-based Satellite Access","source":"RAN WG3","contact":"Jiren Han","contact-id":75302,"tdoctype":"LS in","for":"Action","abstract":"RAN WG3 thanks SA WG2 for their candidate mechanisms and assumptions on the Rel-19 study on 5G System enhancements for satellite access. RAN WG3 has discussed the issues and provides the corresponding feedback as below. With respect to NG connection management: RAN WG3 has just begun to discuss the options, and there is no conclusion yet. RAN WG3 will continue discussing this issue in Rel-19 and inform SA WG2 on the conclusion. With respect to IP address changes due to soft feeder link switch: RAN WG3 confirms that the gNB IP address change due to soft feeder link switch is supported by the existing NGAP procedures. With respect to Mapped Cell ID handling: RAN WG3 also thinks that the AMF\/MME can treat the Mapped Cell ID as in previous releases. Action: RAN WG3 kindly asks SA WG2 to take the above into consideration.","secretary_remarks":"Revision of postponed S2-2406865 from S2#163. Noted in parallel session","agenda_item_sort_order":112,"ainumber":"19.1.1","ainame":"Study on Integration of satellite components in the 5G architecture Phase 3 (FS_5GSAT_Ph3_ARCH)","tdoc_agenda_sort_order":15850,"status":"noted","reservation_date":"2024-06-26 08:28:39","uploaded":"2024-06-27 13:54:03","revisionof":"S2-2406865","revisedto":"","release":"Rel-19","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"RAN WG2","lsoriginalls":"R3-243954","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_164_Maastricht_2024-08\/Docs\/S2-2407410.zip","group":"S2","meeting":"S2-164","year":2024,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2407411","title":"LS from RAN WG3: Reply LS on security of IP transport over satellite transport links","source":"RAN WG3","contact":"Gino Masini","contact-id":23120,"tdoctype":"LS in","for":"Action","abstract":"RAN WG3 thanks SA WG2 and SA WG3 for the LS on security of IP transport for satellite links. RAN WG3 would like to confirm that signalling transport and layer 1 specifications of NG and S1 (TSs 38.411\/412, and 36.411\/412 respectively) are in the scope of RAN WG3 and would like to observe the following. NTN transport assumes IP connectivity between the RAN node on the satellite and the Core Network on the ground is similar to IP connectivity used in TN. The current Network Domain Security can be reused. Action: RAN WG3 asks SA WG2 and SA WG3 group to take the above into account.","secretary_remarks":"Revision of postponed S2-2406866 from S2#163. Noted in parallel session","agenda_item_sort_order":112,"ainumber":"19.1.1","ainame":"Study on Integration of satellite components in the 5G architecture Phase 3 (FS_5GSAT_Ph3_ARCH)","tdoc_agenda_sort_order":15860,"status":"noted","reservation_date":"2024-06-26 08:28:39","uploaded":"2024-06-27 13:54:03","revisionof":"S2-2406866","revisedto":"","release":"Rel-19","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2, SA WG3","Cc":"","lsoriginalls":"R3-243955","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_164_Maastricht_2024-08\/Docs\/S2-2407411.zip","group":"S2","meeting":"S2-164","year":2024,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0}]