[{"name":"S2-2002622","title":"LS from SA WG3LI: LS clarifying LI requirements applicable to NPN\/SNPNs","source":"SA WG3LI","contact":"Greg Schumacher","contact-id":35113,"tdoctype":"LS in","for":"Action","abstract":"A discussion paper (S3i200053) along with copies of SA 2 tdocs which were discussed at SA WG2 #136 AH (S2-2000425 and S2-2000428) was presented and discussed at the present meeting and it was agreed to send a LS to clarify whether similar arrangements regarding N3IWF selection apply to SNPN as currently are defined for PLMNs. SA WG3 LI would like to inform SA WG2 of the following view in this matter: - There are countries having regulations authorizing LI on organizations and enterprises at the same level as applicable to PLMNs. In some of these countries, these regulations have typically been met by utilizing the existing LI capabilities of a licensed operator since the required communication usually flows through that licensed operator to connect to the PSTN. In some countries even intra-enterprise communications are not exempt from LI obligations. - SA WG3 LI highlights that the principles of N3IWF selection developed for PLMNs when the user is roaming partially applies to NPN N3IWF selection when LI in NPN is required by visited country regulations as follows: o The requirement where the UEs must use an in-country N3IWF operated by a NPN is similar to the PLMN requirement o Some country regulations may selectively exempt specific NPNs from this N3IWF in-country deployment requirements, NPN subscribed UEs roaming in those counties need to be able to identify that exemption rather than halting further selection. o Finally, NPN N3IWF selection by SNPN subscribed UEs roaming into a country where a national selection policy is specified and no in-country NPN N3IWF is either specified, or exemption can be determined needs to halt just as PLMN N3IWF selection is halted after running out of N3IWFs meeting the national policy. Action: SA WG3LI kindly requests SA WG2 take the above SA WG3 LI views into consideration during the work on Vertical_LAN. SA WG3 LI also requests that SA WG2 the capability to apply on a per NPN basis the N3IWF selection principles based on national NPN requirements as well as national NPN exemptions.","secretary_remarks":"Postponed S2-2001793 from S2#137E. Response drafted in S2-2002842. Final response in S2-2003247","agenda_item_sort_order":33,"ainumber":"7.7.3","ainame":"5GS Enhanced support of Vertical and LAN Services \u2013 Type a\/b aspects","tdoc_agenda_sort_order":15780,"status":"replied to","reservation_date":"2020-03-26 10:57:37","uploaded":"2020-03-27 13:44:13","revisionof":"S2-2001793","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"","lsoriginalls":"s3i200071","lsreply":"S2-2003247","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002622.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]