公开(公告)号：US20220117006A1

公开(公告)日：2022-04-14

申请号：US17480445

申请日：2021-09-21

Applicant: Nokia Technologies Oy ,  Technische Universität Munich

Inventor： Philippe GODIN ,  Daniela LASELVA ,  Subramanya CHANDRASHEKAR ,  Rakash SIVASIVA GANESAN ,  Srinivasan SELVAGANAPATHY ,  Alberto MARTÍNEZ-ALBA

IPC: H04W76/10 ,  H04W12/106 ,  H04W12/75

Abstract: Systems, methods, apparatuses, and computer program products for data transmission with stateless routing are provided. Certain embodiments may include a radio resource control (RRC)-less or RRC-based mechanism for short data transmission (SDT) in an RRC inactive state, where the mechanism may be performed without storing or establishing a UE context in a distributed unit (DU), for a UE served by a single CU-user plane (UP). Certain embodiments may include a RRC-less mechanism for SDT in an RRC inactive state, where the authentication of the user equipment (UE) may be performed at the UP using UP integrity protection (IP) in a CU-UP. Certain embodiments may include a RRC-based mechanism for SDT in an RRC inactive state, where the authentication of the UE may be performed at the UP using UP IP in a CU-UP and/or at the CP using CP IP in a CU-CP.

公开(公告)号：US20230413371A1

公开(公告)日：2023-12-21

申请号：US18033378

申请日：2021-07-07

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Philippe GODIN ,  Alberto MARTÍNEZ-ALBA ,  Daniela LASELVA ,  Subramanya CHANDRASHEKAR ,  Srinivasan SELVAGANAPATHY ,  Rakash SIVASIVA GANESAN

IPC: H04W76/27 ,  H04W48/16 ,  H04W12/106 ,  H04W12/04

CPC classification number: H04W76/27 ,  H04W12/04 ,  H04W12/106 ,  H04W48/16

Abstract: For performing a small data transmission triggered in an inactive state of a user equipment (S701, S703), a first transmission method or a second transmission method is selected at least based on a cell of a cellular communication system in which the small data transmission is to be performed by the user equipment (S705). Then the small data transmission is performed using the selected first or second transmission method (S707).