公开(公告)号：US20230247487A1

公开(公告)日：2023-08-03

申请号：US17588966

申请日：2022-01-31

Applicant: NOKIA TECHNOLOGIES OY

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

IPC: H04W28/12 ,  H04W28/02 ,  H04W40/12 ,  H04W76/10

CPC classification number: H04W28/12 ,  H04W28/0236 ,  H04W40/12 ,  H04W76/10

Abstract: Systems, methods, apparatuses, and computer program products for access traffic steering, switching, and splitting (ATSSS) with branching point (BP) on the path are provided. The method may include determining that an existing user plane function is sub-optimal in terms of routing and latency incurred with respect to traffic for a given packet data unit session of a user equipment. The method may also include establishing, based on the determination, a new user plane function for the packet data unit session. The method may further include establishing a branching point user plane function that interfaces with the existing user plane function, the new user plane function, and a plurality of network access types. In addition, the method may include updating the user equipment by providing the user equipment with relevant multi-access traffic steering rules.

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.