Intel Corporation
USER PLANE EARLY DATA TRANSMISSION (EDT) MESSAGE 4 (MSG4) LOSS

Abstract:

Technology is disclosed for an evolved node B (eNB) operable for early data transmission (EDT) in a user plane (UP) in a cellular internet of things (CIoT) evolved 5 packet system (EPS) network. The eNB can be configured to encode, at the eNB for transmission to a user equipment (UE), a message 4 (Msg4) including a resume identifier (ID) and a next-hop chaining count (NCC). The eNB can be configured to determine, at the eNB, a delivery status of the Msg4 to the UE. The eNB can be configured to encode, at the eNB for transmission to a previous eNB of the UE, one or more of an EDT failure 10 indicator or the resume ID.