公开(公告)号：US20190313262A1

公开(公告)日：2019-10-10

申请号：US16373895

申请日：2019-04-03

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Huang-Fu ,  Chi-Hsien Chen ,  Shang-Ru Mo

IPC: H04W24/02 ,  H04L29/08

Abstract: A PDU session and QoS flow handling mechanism is proposed when a QoS flow of a PDU session does not have a mapping DRB after a handover or a service request procedure. If the QoS flow is associated with a default QoS rule, the UE can locally release the PDU session, initiate a PDU session release procedure, send a 5GSM status message with proper cause, or assume the PDU session is not reactivated. On the other hand, if the QoS flow is not associated with a default QoS rule, the UE can locally delete the QoS flow, delete the QoS flow by using a PDU session modification procedure, or send a 5GSM status message with proper cause.