3GPP TSG-RAN WG2 Meeting NB-IOT ad-hoc Budapest, Hungary, 19 – 21, January 2016 Title: Response to: Release: Work Item: draft LS on questions on NB-IoT Rel-13 NB-IoT Source: To: Cc: Vodafone [To be replaced by RAN WG3] 3GPP SA WG2, 3GPP CT WG1 3GPP RAN WG1, SA WG3, 3GPP RAN WG2 Contact person: Alexej Kulakov Alexej.kulakov at vodafone.com R3-160134 Attachments: 1 Overall description RAN3 has discussed the delivery of NAS over S1 for CP NB IoT optimisation (former solution 2 TR 23.720). RAN3 is wondering, if there are S1 protocol impacts due to carrying data and signalling over NAS, see CP NB IoT optimisation (former solution 2 TR 23.720)? 2 Actions To SA2 and CT1 ACTION: RAN WG3 ask to provide guidance on aspects described above, if any. 3 Dates of next TSG RAN WG3 meetings