公开(公告)号：US20230052699A1

公开(公告)日：2023-02-16

申请号：US17790538

申请日：2020-12-31

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Jiwan NINGLEKHU ,  Michael STARSINIC ,  Hongkun LI ,  Catalilna MLADIN ,  Quang LY ,  Joseph MURRAY ,  Pascal ADJAKPLE

IPC: H04W48/18 ,  H04W60/04 ,  H04W48/16

Abstract: Network Slice Selection Assistance information (NSSA1) may be signaled between U ser Equipment (UE) and a network. NSSA1 sent from the network to the UE may include, for example. Operating Frequency Band (OFB) for each Single NSSAI(S-NSSA1) in the NSSAI, as well as a Radio Access Technology (RAT) Frequency Selection Priority (RFSP) index, which the network configures as a part of UE access and mobility; subscription, during a UE registration procedure. RAT restrictions may be enhanced to indicate to the UE that certain slices are not accessible via certain RATs. A UE may be provided by the network with an alternative NSSAI and corresponding OFBs for each S-NSSAI thereby indicating to the UE that these S-NSSAI would have been allowed had they been requested. A UE may be able to choose an alternative Allowed NSSAI and send a registration update request to the network.