公开(公告)号：US20230247482A1

公开(公告)日：2023-08-03

申请号：US17588866

申请日：2022-01-31

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Rainer LIEBHART ,  Mu HE ,  Devaki CHANDRAMOULI ,  Georgios GKELLAS ,  Laurent THIEBAUT ,  Lazaros GKATZIKIS

IPC: H04W28/08 ,  H04W76/15 ,  H04W76/19 ,  H04W76/30

CPC classification number: H04W28/0808 ,  H04W76/15 ,  H04W76/19 ,  H04W76/30

Abstract: Systems, methods, apparatuses, and computer program products for access traffic steering, switching, and splitting (ATSSS) with branching point (BP) or uplink classifier (ULCL) on the path. The method may include, setting up, in response to a request, a first user plane function with multi-access traffic steering functionality. The method may also include requesting a user equipment to establish a new multi-access packet data unit session to a same data network name and slice as an old multi-access packet data unit session, or request the user equipment to release the old multi-access packet data unit session with a second user plane function and to initiate a multi-access packet data unit session re-establishment. The method may further include sending, to the user equipment, multi-access rules for the new multi-access packet data unit session, a new internet protocol address, and new multipath transmission control protocol proxy information.