[{"name":"S2-1901426","title":"LS from RAN WG1: Reply LS on RAN Impact analysis due to TSN","source":"RAN WG1","contact":"Karri Ranta-aho","contact-id":64268,"tdoctype":"LS in","for":"Action","abstract":"1. Description: RAN WG1 would like to thank SA WG2 for the LS on RAN Impact analysis due to TSN. RAN WG1 has discussed feasibility and scalability impacts of identified TSN Time synchronization solutions. 2. Feasibility aspects: Deterministic RAN-UE delay required by Solution #17 presents feasibility challenges. RAN WG1 has not identified any feasibility related issues with the other solutions. 3. Scalability aspects: Regarding scalability aspect, SA WG2 asked: 'In addition, SA WG2 would like to request feedback on the scalability on the radio interface for solutions that require transport of gPTP time synchronisation messages using per-UE unicast transport over the air.' The scalability of per-UE unicast is affected by several factors, including the payload size, the frequency the payload needs to be transmitted, SINR geometry of the cell, and the overall deployment. - If the payload size is small, scalability can be achieved more easily than if the payload size is large. - If the payload does not need to be transmitted frequently, scalability can be achieved more easily than if the payload needs to be transmitted frequently. - If the SINR geometry of the cell is good, scalability can be achieved more easily than if the SINR geometry is poor. The combined effect of the factors should be considered. Regarding the maximum number of UEs per cell that need to receive the gPTP time synchronization messages, it is RAN WG1 understanding that SA WG1 assumed up to 300 UEs per service area [1] needing to receive the gPTP time synchronization messages. The UEs are distributed among a number of gNBs serving the area, and when per-UE unicast messages are to be sent, each gNB covers the subset of UEs attached to it. RAN WG1 has not conducted analysis that would allow drawing firm conclusions and currently does not plan to proceed with further analysis. However, RAN WG1 would not expect the traffic volume of the gPTP time synchronization messages alone to cause a significant stress to the radio interface if the size and frequency of such messages is not excessive. Action: RAN WG1 kindly asks SA WG2 to take RAN WG1 feedback into further consideration.","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19150,"status":"noted","reservation_date":"2019-02-05 10:23:58","uploaded":"2019-02-05 10:27:19","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"RAN WG2, RAN WG3, TSG SA","lsoriginalls":"R1-1901442","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901426.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901427","title":"LS from RAN WG1: Reply LS on TSN requirements evaluation","source":"RAN WG1","contact":"Klaus Hugl","contact-id":68338,"tdoctype":"LS in","for":"Information","abstract":"RAN WG1 would like to thank RAN WG2 on the LS TSN requirements evaluation. RAN WG1 has discussed the following request from RAN WG2: - provide feedback on whether 0.5 ms latency target can be achieved using current NR specification and\/or enhancements considered as part of L1 URLLC enhancements SI. - provide feedback on what the achievable time synchronization accuracy over Uu interface, considering the synchronicity requirements of TSN networks as mentioned in TR 22.804 RAN WG1 has performed some latency and reliability analysis for the use case I provided in the LS. The 0.5 ms latency target analysis lead to the following RAN WG1 conclusions: - For 15 kHz SCS, the 0.5ms one-way latency target cannot be achieved with Rel-15 NR. - For FDD, the 0.5ms one-way latency target can be achieved for both DL and UL for 30kHz (and higher) SCS with Rel-15 NR for single shot transmission. - For TDD: o For 30kHz SCS, some analysis shows the 0.5ms one-way latency target can be achieved with the respectively assumed UL\/DL configuration, whereas other analysis indicates that it cannot be achieved with Rel-15 NR for the respectively assumed UL\/DL configuration. o For 60kHz (and higher) SCS, the 0.5ms one-way latency target can be achieved with the respectively assumed UL\/DL configuration for both DL and UL with Rel-15 NR for single-shot transmission. On reliability analysis using single UE link level evaluations, RAN WG1 makes the following conclusions: - For the cases where the one-way latency target can be achieved, it was observed that the reliability target of 1e-4 to 1e-6 can be achieved with Rel-15 NR for the 5%-ile SINR geometry (e.g. cell-edge UE) in use case I based on the agreed methodology and assumptions from RAN WG1#95 (without PDCP duplication). It is RAN WG1 conclusion that PDCP duplication is not always available\/applicable. RAN WG1 has performed analysis on the achievable time synchronization accuracy over Uu interface. A timing synchronization error between a gNB and a UE no worse than 540ns is achievable based on the RAN WG1 agreed evaluation assumptions for Rel-15 NR with 15kHz SCS. It is RAN WG1\u00b4s conclusion, that the synchronization accuracy is improved when using higher SCS. For small service areas with dense small cell deployments a propagation delay compensation by the UE would not be required. The propagation delay compensation needs to be applied by the TSN UEs for larger service areas with more sparse cell deployments (e.g. for inter-site distances >200m the gNB-to-UE timing synchronization accuracy without propagation delay compensation may be worse than 1us). - Note that the RAN WG1 analysis does not contain the effects of the granularity & accuracy of the absolute timing indication information by the gNB, which are outside of the RAN WG1 study scope.","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19160,"status":"noted","reservation_date":"2019-02-05 10:23:58","uploaded":"2019-02-05 10:27:19","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"RAN WG2","Cc":"RAN WG3, SA WG1, SA WG2","lsoriginalls":"R1-1901470","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901427.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901636","title":"TSN bridge Managed Objects (MO) collection for 5GS bridge","source":"Vivo","contact":"xiaowan ke","contact-id":74585,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: In case that the SMF fails to find the suitable I-UPF, the SMF decides to (based on local policies) either: - trigger re-establishment of the PDU Session; or - keep the PDU Session; or - release the PDU Session.","secretary_remarks":"Partially merged into S2-1902766.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19610,"status":"merged","reservation_date":"2019-02-18 05:36:22","uploaded":"2019-02-19 14:02:30","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":7.0,"crrevision":"","crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901636.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901637","title":"The synchronization precision requirement over Uu","source":"Vivo","contact":"xiaowan ke","contact-id":74585,"tdoctype":"CR","for":"Approval","abstract":"It is proposed to remove the explict indication to request RAN to make the PDU session go via MN or SN. It is proposed to agree the S2-1901958 and S2-1901960, which are updated based on the agreed CRs from last meeting.","secretary_remarks":"Revised in parallel session to S2-1902761.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19380,"status":"revised","reservation_date":"2019-02-18 05:36:23","uploaded":"2019-02-19 14:02:30","revisionof":"","revisedto":"S2-1902761","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":8.0,"crrevision":"","crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901637.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901718","title":"TSN-5GS QoS mapping","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"New WID for optimisations on UE radio capability signalling","secretary_remarks":"Partially merged into S2-1902765.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19560,"status":"merged","reservation_date":"2019-02-18 17:43:38","uploaded":"2019-02-19 14:46:00","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":9.0,"crrevision":"","crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901718.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901721","title":"Mapping of bridge port and QoS control in 5GS","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Introduce simplified 802.1Qbv support for 5GS with exclusive gating mechanism. in 3GPP Rel-16. agreed components will be incorporated into CR#3","secretary_remarks":"Merged into S2-1902766.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19620,"status":"merged","reservation_date":"2019-02-18 17:43:40","uploaded":"2019-02-19 14:46:00","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":11.0,"crrevision":"","crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901721.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901722","title":"5G system support for multiple external time domains: Option 3","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add solution to support bridge handling","secretary_remarks":"Revised in parallel session to S2-1902762.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19410,"status":"revised","reservation_date":"2019-02-18 17:43:42","uploaded":"2019-02-19 14:56:26","revisionof":"","revisedto":"S2-1902762","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":12.0,"crrevision":"","crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901722.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901928","title":"Enhancements to 5GS QoS framework for support of deterministic communication","source":"Samsung","contact":"Sang-Jun Moon","contact-id":30993,"tdoctype":"discussion","for":"Agreement","abstract":"This contribution proposes Enhancements to 5GS QoS framework for support of deterministic communication.","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19360,"status":"noted","reservation_date":"2019-02-19 07:13:45","uploaded":"2019-02-19 12:02:52","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901928.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1901932","title":"Deterministic Communication QoS Class","source":"Samsung","contact":"Sang-Jun Moon","contact-id":30993,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Proposes the conclusion for Key issue #4.","secretary_remarks":"Revision of S2-1900407 from S2#130. Merged into S2-1902764","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19520,"status":"merged","reservation_date":"2019-02-19 07:15:48","uploaded":"2019-02-19 12:02:52","revisionof":"S2-1900407","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":830.0,"crrevision":1.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1901932.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902009","title":"Support of 5GS integration with TSN","source":"Huawei, HiSilicon","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Capture the overall general description of 5G-LAN type service support in 23.501","secretary_remarks":"Merged into S2-1902760.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19370,"status":"merged","reservation_date":"2019-02-19 09:42:37","uploaded":"2019-02-19 14:49:43","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1001.0,"crrevision":"","crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902009.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902010","title":"5GS logical TSN bridge management","source":"Huawei, HiSilicon","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Discussed different architectures of 5GS integration with TSN and proposes a way forward","secretary_remarks":"Revised in parallel session to S2-1902766.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19570,"status":"revised","reservation_date":"2019-02-19 09:42:38","uploaded":"2019-02-19 14:49:43","revisionof":"","revisedto":"S2-1902766","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1002.0,"crrevision":"","crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902010.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902011","title":"QoS parameters mapping between TSN characters and 5G QoS","source":"Huawei, HiSilicon","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add the chapter for 5G intergation with TSN.","secretary_remarks":"Revised in parallel session, merging S2-1901718, to S2-1902765.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19530,"status":"revised","reservation_date":"2019-02-19 09:42:39","uploaded":"2019-02-19 14:49:43","revisionof":"","revisedto":"S2-1902765","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1003.0,"crrevision":"","crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902011.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902060","title":"TSC Architecture","source":"Nokia, Nokia Shanghai Bell","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Vertical_LAN open items {5G-LAN, NPN, TSC}","secretary_remarks":"Revision of S2-1900558 from S2#130. Revised in parallel session, merging S2-1902009, to S2-1902760.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19340,"status":"revised","reservation_date":"2019-02-19 10:47:29","uploaded":"2019-02-19 13:39:38","revisionof":"S2-1900558","revisedto":"S2-1902760","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":871.0,"crrevision":2.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902060.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902061","title":"Introducing support TSC Deterministic QoS","source":"Nokia, Nokia Shanghai Bell","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Vertical_LAN open items {TSC}","secretary_remarks":"Revised in parallel session, merging S2-1901932, to S2-1902764.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19480,"status":"revised","reservation_date":"2019-02-19 10:47:30","uploaded":"2019-02-19 13:39:38","revisionof":"","revisedto":"S2-1902764","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1007.0,"crrevision":"","crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902061.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902062","title":"Introducing support Hold and Forward Buffers for TSC Deterministic QoS","source":"Nokia, Nokia Shanghai Bell","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Introducing TSC architecture agreed in TR 23.734","secretary_remarks":"Revised in parallel session to S2-1902767.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19630,"status":"revised","reservation_date":"2019-02-19 10:47:31","uploaded":"2019-02-19 13:39:38","revisionof":"","revisedto":"S2-1902767","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1008.0,"crrevision":"","crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902062.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902064","title":"Update to Solution 11 Option 2 TSN Time Synchronization","source":"Nokia, Nokia Shanghai Bell, Qualcomm Incorporated","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: In the conclusion of TR23.734, for key issue 3.1: Enablers to support Time Sensitive Networking (TSN), the following was specified: 'Solution 8 is recommended as the basis for normative work.' In solution 8, the 5GS appears as a TSN bridge, and 'Applications request QoS properties that the 5G system then meets using 5G framework such as QoS Flow type (GBR, delay critical GBR), 5QI, ARP, etc.' '5GS QoS framework is reused with enhancements, if needed, in order to support time sensitive communication.' 'Evaluate the need for new QoS parameter(s) to support time sensitive communication scheduled transmission in 5GS.' Hold and Forward Buffer: In TSN networks, bridges have gate schedules that specify precise times (sub-millisecond accuracy) when frames for periodic deterministic traffic are transmitted. Burst transmission prior to or after the proscribed time window is not permitted. N6 egress at the UPF and N60 egress at the UE must adhere to these schedules if the 5GS is to participate transparently as a bridge in a TSN network as adopted in the TR23.734 conclusion (Solution 8). To compensate for jitter in transmission of frames between the UE and UPF, where TSN gate scheduling is not possible or not required, a Hold and Forward Buffer (HFB) is introduced. The HFB ensures that packets sent over N6 and N60 can be time-gated for TSC QoS flows according to IEEE protocols. This contribution proposes enhancements to support periodic, deterministic TSN traffic. Specifically, 23.501 text is introduced to support of Hold & Forward buffers for de-jittering in the UE\/UPF.","secretary_remarks":"Revised in parallel session to S2-1902763.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19450,"status":"revised","reservation_date":"2019-02-19 10:47:33","uploaded":"2019-02-19 13:39:38","revisionof":"","revisedto":"S2-1902763","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":16.0,"crrevision":"","crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902064.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902184","title":"LS from SA WG1: Reply LS on TSN requirements evaluation","source":"SA WG1","contact":"Betsy Covell","contact-id":68109,"tdoctype":"LS in","for":"Action","abstract":"SA WG1 has discussed an LS from RAN WG2 in R2-1816043 and realizes that a confusing response was provided in reply LS S1-183707. In regards to the question from RAN WG2: - whether","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19170,"status":"noted","reservation_date":"2019-02-23 14:27:10","uploaded":"2019-02-23 14:33:00","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"RAN WG2, SA WG2","Cc":"RAN WG1, RAN WG3","lsoriginalls":"S1-190233","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902184.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902723","title":"LS from RAN WG2: LS on assistance information for TSN traffic flows","source":"RAN WG2","contact":"Dawid Koziol","contact-id":68362,"tdoctype":"LS in","for":"Action","abstract":"RAN WG2 has studied TSN traffic patterns, their characteristics and potential impact on QoS and scheduling in RAN. Considering the deterministic nature of TSN traffic, RAN WG2 has agreed that the knowledge of TSN traffic pattern is useful for the gNB to allow it to more efficiently schedule traffic either via Configured Grants, Semi-Persistent Scheduling or with dynamic grants. Therefore, it would be beneficial for the gNB to receive from the Core Network the following assistance information describing TSN traffic flow, e.g. upon QoS flow establishment: - message periodicity - message size - message arrival time at gNB (DL) and UE (UL). Action: RAN WG2 respectfully asks SA WG2 to perform required normative work to specify the procedures allowing the gNB to receive assistance information describing established traffic flow as described above.","secretary_remarks":"This LS was postponed.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19180,"status":"postponed","reservation_date":"2019-02-26 16:16:47","uploaded":"2019-03-08 10:59:09","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"RAN WG1, RAN WG3","lsoriginalls":"R2-1902354","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902723.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902759","title":"Vertical_LAN TSC drafting session","source":"Nokia","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"report","for":"Discussion","abstract":"Drafting session discussion report","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19190,"status":"noted","reservation_date":"2019-02-27 11:34:31","uploaded":"2019-03-08 11:00:05","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902759.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902760","title":"TSC Architecture","source":"Nokia, Nokia Shanghai Bell, Huawei, HiSilicon?","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"This is a resubmission of the slides for the show of hands regarding KI#1 of eNS SI","secretary_remarks":"Revision of S2-1902060, merging S2-1902009. Revised in parallel session to S2-1902852.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19350,"status":"revised","reservation_date":"2019-02-27 11:34:31","uploaded":"2019-03-08 11:00:05","revisionof":"S2-1902060","revisedto":"S2-1902852","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":871.0,"crrevision":3.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902760.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902761","title":"The synchronization precision requirement over Uu","source":"Vivo","contact":"xiaowan ke","contact-id":74585,"tdoctype":"CR","for":"Approval","abstract":"Drafting session discussion report","secretary_remarks":"Revision of S2-1901637. Revised to S2-1902896.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19390,"status":"revised","reservation_date":"2019-02-27 11:34:32","uploaded":"2019-03-08 11:00:06","revisionof":"S2-1901637","revisedto":"S2-1902896","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":8.0,"crrevision":1.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902761.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902762","title":"5G system support for multiple external time domains: Option 3","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Introducing TSC architecture agreed in TR 23.734","secretary_remarks":"Revision of S2-1901722. Revised in parallel session to S2-1902851.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19420,"status":"revised","reservation_date":"2019-02-27 11:34:33","uploaded":"2019-03-08 11:00:06","revisionof":"S2-1901722","revisedto":"S2-1902851","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":12.0,"crrevision":1.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902762.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902763","title":"Update to Solution 11 Option 2 TSN Time Synchronization","source":"Nokia, Nokia Shanghai Bell, Qualcomm Incorporated","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: A new solution is proposed for RAN awareness of the time error budget, i.e. the synchronization precision requirement over Uu","secretary_remarks":"Revision of S2-1902064. Revised in parallel session to S2-1902850.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19460,"status":"revised","reservation_date":"2019-02-27 11:34:34","uploaded":"2019-03-08 17:08:53","revisionof":"S2-1902064","revisedto":"S2-1902850","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":16.0,"crrevision":1.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902763.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902764","title":"Introducing support TSC Deterministic QoS","source":"Nokia, Nokia Shanghai Bell, Qualcomm, Samsung","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Update Soln #11, option#3 with multiple time domains support","secretary_remarks":"Revision of S2-1902061, merging S2-1901932. Revised in parallel session to S2-1902855.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19490,"status":"revised","reservation_date":"2019-02-27 17:12:41","uploaded":"2019-03-08 17:08:53","revisionof":"S2-1902061","revisedto":"S2-1902855","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1007.0,"crrevision":1.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902764.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902765","title":"QoS parameters mapping between TSN characters and 5G QoS","source":"Huawei, HiSilicon","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: We propose to clarify TR23.734 Solution 11 option 2 to address concerns regarding scalability to support multiple time domains. The proposed solution allows SIB and\/or dedicated RRC signalling to transmit time information for the required domains. While there is no SA WG1 requirement specifying the number of required time domains per-gNB, SA WG1 TS22.104 notes the following: The 5GS must support least 2 simultaneous working clock domains on a UE 'The 5G system shall support networks with up to 32 working clock domains', where it is noted that 'working clock domains are constrained in size. They often consist of a single machine or a set of neighbouring machines that physically collaborate.' 'A specific working clock domain will contain only a subset of the UEs within the industrial facility. Often, the UEs of the working clock domain are connected to the same gNB. However, it is also possible that a working clock domain contains multiple neighbouring gNBs. This depends on the actual use case and its vertical application.' While it is clear from this description that a 5GS needs to support 32 working clock domains, there is no requirement that a given gNB, which may serve a specific area of a factory (eg: paint shop floor vs assembly floor) must be able to transmit clock information for all 32 domains. Observation 1: SA WG1 requirements are met with gNBs that convey fewer than 32 working clocks over Uu. Both broadcast (SIB) and unicast (RRC) methods are supported by LTE Rel15 and industrial use cases provide further justifications for adopting both methods in the 5GS. More frequent signalling with RRC can mitigate frequency errors of external clocks, can provide secure transfer and can provide better scalability than the SIB in some cases. RAN groups should consider permitting both the SIB and dedicated RRC signalling to transmit time information for the required domains. Observation 2: A single mechanism (SIB or dedicated RRC signalling) is not universally efficient for transmitting time information for the required domains. RAN groups should consider allowing both options. RAN WG2 #105 contribution 'Support for Clock Synchronization Service' can we add the Tdoc #? has analyzed support for the SA WG1 requirement for synchronizing 32 working clock domains and proposes to conclude that the requisite clock information can fit within the SI message capacity of 2976 bits. To improve efficiency and better support scalability, RAN WG2 may further consider optimizations to compress redundant information sent by working clocks and more efficiently encode working clock information. Observation 3: There are mechanisms RAN may further consider to more efficiently support synchronization of multiple clocks across Uu Proposal 1: Support for clock transmission across the 5GS for multiple clocks should be based on the following: PTP is supported in the 5GS, allowing clocks to be synchronized between the gNB, UPF and TSN bridges in a DN. A GM may be configured anywhere in the PTP connected network. A clock time may be synchronized via SIB broadcast over Uu, using mechanisms similar to that defined in LTE release 15. To provide efficient signaling, working clock information may be transmitted via SIB (SIB9) or via dedicated RRC as specified by RAN groups. To increase efficiency and improve scalability, RAN may consider various mechanisms to efficiently support synchronization of multiple clocks across Uu. The 5GS configuration that supports Solution 11 option 2 also enables the scenario described in solution 11 option 4, where working clock domains are synchronized with a 5GS internal clock. In both cases, PTP transport conveys time between a gNB and the TSN network. It is important to consider support for the Option 4 scenario since: Using a precise 5G GM to synchronize all working clocks means only one clock (the 5G GM) needs to be synchronized over Uu. This facilitates scalability to support multiple working clock doma","secretary_remarks":"Revision of S2-1902011, merging S2-1901718. Revised in parallel session to S2-1902854.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19540,"status":"revised","reservation_date":"2019-02-27 17:12:42","uploaded":"2019-03-08 11:03:17","revisionof":"S2-1902011","revisedto":"S2-1902854","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1003.0,"crrevision":1.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902765.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902766","title":"5GS logical TSN bridge management","source":"Huawei, HiSilicon","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: In the conclusion of TR23.734, for key issue 3.1: Enablers to support Time Sensitive Networking (TSN), the following was specified: 'Solution 8 is recommended as the basis for normative work.' In solution 8, the 5GS appears as a TSN bridge, and 'Applications request QoS properties that the 5G system then meets using 5G framework such as QoS Flow type (GBR, delay critical GBR), 5QI, ARP, etc.' '5GS QoS framework is reused with enhancements, if needed, in order to support time sensitive communication.' 'Evaluate the need for new QoS parameter(s) to support time sensitive communication scheduled transmission in 5GS.' Based the conclusions of the TR and the consensus seen in RAN WG2 (email discussion), this contribution proposes enhancements to support periodic, deterministic TSN traffic. Specifically, this contribution introduces 23.501 text to support the TSC QoS RAN WG2 sent us a LS (S2-1902723), stated the following: Considering the deterministic nature of TSN traffic, RAN WG2 has agreed that the knowledge of TSN traffic pattern is useful for the gNB to allow it to more efficiently schedule traffic either via Configured Grants, Semi-Persistent Scheduling or with dynamic grants. Therefore, it would be beneficial for the gNB to receive from the Core Network the following assistance information describing TSN traffic flow, e.g. upon QoS flow establishment: message periodicity message size message arrival time at gNB (DL) and UE (UL)","secretary_remarks":"Revision of S2-1902010, merging S2-1901721 and S2-1901636. Revised in parallel session to S2-1902853.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19580,"status":"revised","reservation_date":"2019-02-27 17:12:43","uploaded":"2019-03-08 11:03:18","revisionof":"S2-1902010","revisedto":"S2-1902853","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1002.0,"crrevision":1.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902766.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902767","title":"Introducing support Hold and Forward Buffers for TSC Deterministic QoS","source":"Nokia, Nokia Shanghai Bell","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add the chapter for QoS Mapping between TSN characters and 5G QoS.","secretary_remarks":"Revision of S2-1902062. Revised in parallel session to S2-1902856.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19640,"status":"revised","reservation_date":"2019-02-27 17:12:44","uploaded":"2019-03-08 17:08:53","revisionof":"S2-1902062","revisedto":"S2-1902856","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1008.0,"crrevision":1.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902767.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902850","title":"Update to Solution 11 Option 2 TSN Time Synchronization","source":"Nokia, Nokia Shanghai Bell, Qualcomm Incorporated","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: The N4 rules are updated to support new 5G-LAN requirements for local switching and Nx based forwarding","secretary_remarks":"Revision of S2-1902763. Agreed in parallel session. This was Block approved","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19470,"status":"agreed","reservation_date":"2019-03-01 12:10:02","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902763","revisedto":"","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":16.0,"crrevision":2.0,"crcategory":"C","tsg_crp":"SP-190177","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902850.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902851","title":"5G system support for multiple external time domains: Option 3","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Capture the overall general description of 5G-LAN type service support in 23.501 Changes in rev 3: Clarify that there is a 1:1 relation between 5G LAN group and DNN It is clarified that SMF set can be used for 5G-LAN. Editor's note related to traffic forwarding rules is modified.","secretary_remarks":"Revision of S2-1902762. This CR was agreed. Cover sheet error - left for e-mail approval. e-mail revision 1 agreed. Revised to S2-1902927.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19430,"status":"revised","reservation_date":"2019-03-01 12:10:03","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902762","revisedto":"S2-1902927","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":12.0,"crrevision":2.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902851.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902852","title":"TSC Architecture","source":"Nokia, Nokia Shanghai Bell, Huawei, HiSilicon, ZTE, Ericsson, Qualcomm Incorporated","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: We propose to clarify TR23.734 Solution 11 option 2 to address concerns regarding scalability to support multiple time domains. The proposed solution allows SIB and\/or dedicated RRC signalling to transmit time information for the required domains. While there is no SA WG1 requirement specifying the number of required time domains per-gNB, SA WG1 TS22.104 notes the following: The 5GS must support least 2 simultaneous working clock domains on a UE 'The 5G system shall support networks with up to 32 working clock domains', where it is noted that 'working clock domains are constrained in size. They often consist of a single machine or a set of neighbouring machines that physically collaborate.' 'A specific working clock domain will contain only a subset of the UEs within the industrial facility. Often, the UEs of the working clock domain are connected to the same gNB. However, it is also possible that a working clock domain contains multiple neighbouring gNBs. This depends on the actual use case and its vertical application.' While it is clear from this description that a 5GS needs to support 32 working clock domains, there is no requirement that a given gNB, which may serve a specific area of a factory (eg: paint shop floor vs assembly floor) must be able to transmit clock information for all 32 domains. Observation 1: SA WG1 requirements are met with gNBs that convey fewer than 32 working clocks over Uu. Both broadcast (SIB) and unicast (RRC) methods are supported by LTE Rel15 and industrial use cases provide further justifications for adopting both methods in the 5GS. More frequent signalling with RRC can mitigate frequency errors of external clocks, can provide secure transfer and can provide better scalability than the SIB in some cases. RAN groups should consider permitting both the SIB and dedicated RRC signalling to transmit time information for the required domains. Observation 2: A single mechanism (SIB or dedicated RRC signalling) is not universally efficient for transmitting time information for the required domains. RAN groups should consider allowing both options. RAN WG2 #105 contribution 'Support for Clock Synchronization Service' can we add the Tdoc #? has analyzed support for the SA WG1 requirement for synchronizing 32 working clock domains and proposes to conclude that the requisite clock information can fit within the SI message capacity of 2976 bits. To improve efficiency and better support scalability, RAN WG2 may further consider optimizations to compress redundant information sent by working clocks and more efficiently encode working clock information. Observation 3: There are mechanisms RAN may further consider to more efficiently support synchronization of multiple clocks across Uu Proposal 1: Support for clock transmission across the 5GS for multiple clocks should be based on the following: PTP is supported in the 5GS, allowing clocks to be synchronized between the gNB, UPF and TSN bridges in a DN. A GM may be configured anywhere in the PTP connected network. A clock time may be synchronized via SIB broadcast over Uu, using mechanisms similar to that defined in LTE release 15. To provide efficient signaling, working clock information may be transmitted via SIB (SIB9) or via dedicated RRC as specified by RAN groups. To increase efficiency and improve scalability, RAN may consider various mechanisms to efficiently support synchronization of multiple clocks across Uu. The 5GS configuration that supports Solution 11 option 2 also enables the scenario described in solution 11 option 4, where working clock domains are synchronized with a 5GS internal clock. In both cases, PTP transport conveys time between a gNB and the TSN network. It is important to consider support for the Option 4 scenario since: Using a precise 5G GM to synchronize all working clocks means only one clock (the 5G GM) needs to be synchronized over Uu. This facilitates scalability to support multiple working clock doma","secretary_remarks":"Revision of S2-1902760. This CR was agreed","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19360,"status":"agreed","reservation_date":"2019-03-01 12:10:05","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902760","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":871.0,"crrevision":4.0,"crcategory":"B","tsg_crp":"SP-190169","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902852.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902853","title":"5GS logical TSN bridge management","source":"Huawei, HiSilicon, Ericsson, vivo","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Update Soln #11, option#3 with multiple time domains support","secretary_remarks":"Revision of S2-1902766. Revised to S2-1902897.","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19590,"status":"revised","reservation_date":"2019-03-01 12:10:06","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902766","revisedto":"S2-1902897","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1002.0,"crrevision":2.0,"crcategory":"B","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902853.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902854","title":"QoS parameters mapping between TSN characters and 5G QoS","source":"Huawei, HiSilicon, Ericsson, vivo","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Introducing TSC architecture agreed in TR 23.734","secretary_remarks":"Revision of S2-1902765. This CR was agreed","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19550,"status":"agreed","reservation_date":"2019-03-01 12:10:07","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902765","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1003.0,"crrevision":2.0,"crcategory":"B","tsg_crp":"SP-190169","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902854.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902855","title":"Introducing support TSC Deterministic QoS","source":"Nokia, Nokia Shanghai Bell, Qualcomm, Samsung","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add the section for the 5GS logical TSN bridge management.","secretary_remarks":"Revision of S2-1902764. This CR was agreed","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19500,"status":"agreed","reservation_date":"2019-03-01 12:10:09","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902764","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1007.0,"crrevision":2.0,"crcategory":"B","tsg_crp":"SP-190169","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902855.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902856","title":"Introducing support Hold and Forward Buffers for TSC Deterministic QoS","source":"Nokia, Nokia Shanghai Bell","contact":"Devaki Chandramouli","contact-id":68275,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Add the chapter for QoS Mapping between TSN characters and 5G QoS.","secretary_remarks":"Revision of S2-1902767. This CR was agreed","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19650,"status":"agreed","reservation_date":"2019-03-01 12:10:10","uploaded":"2019-03-08 17:08:56","revisionof":"S2-1902767","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1008.0,"crrevision":2.0,"crcategory":"B","tsg_crp":"SP-190169","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902856.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902896","title":"The synchronization precision requirement over Uu","source":"Vivo","contact":"xiaowan ke","contact-id":74585,"tdoctype":"CR","for":"Approval","abstract":"Questions for show of hands","secretary_remarks":"Revision of S2-1902761. This was left for e-mail approval. Noted","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19400,"status":"noted","reservation_date":"2019-03-01 16:59:51","uploaded":"2019-03-08 17:09:08","revisionof":"S2-1902761","revisedto":"","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":8.0,"crrevision":2.0,"crcategory":"C","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902896.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902897","title":"5GS logical TSN bridge management","source":"Huawei, HiSilicon, Ericsson, vivo","contact":"Runze Zhou","contact-id":60945,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: The traffic steering supports the 5G-LAN type of services and considers adding the VLAN tags for N6","secretary_remarks":"Revision of S2-1902853. This CR was agreed","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19600,"status":"agreed","reservation_date":"2019-03-01 16:59:53","uploaded":"2019-03-08 17:09:08","revisionof":"S2-1902853","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"15.4.0","workitem":[{"winame":"Vertical_LAN"}],"crnumber":1002.0,"crrevision":3.0,"crcategory":"B","tsg_crp":"SP-190169","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902897.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1902927","title":"5G system support for multiple external time domains: Option 3","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Update Soln #11, option#3 with multiple time domains support","secretary_remarks":"e-mail revision 1 of S2-1902851. This CR was agreed","agenda_item_sort_order":38,"ainumber":"6.15.2","ainame":"5GS Enhanced support of Vertical and LAN Services - TSN aspects","tdoc_agenda_sort_order":19440,"status":"agreed","reservation_date":"2019-03-12 08:56:50","uploaded":"2019-03-12 09:08:42","revisionof":"S2-1902851","revisedto":"","release":"Rel-16","crspec":23.734,"crspecversion":"16.0.0","workitem":[{"winame":"FS_Vertical_LAN"}],"crnumber":12.0,"crrevision":3.0,"crcategory":"C","tsg_crp":"SP-190177","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_131_Tenerife\/Docs\/S2-1902927.zip","group":"S2","meeting":"S2-131","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]