公开(公告)号：US20250158936A1

公开(公告)日：2025-05-15

申请号：US18837754

申请日：2023-02-28

Applicant: Hitachi Astemo, Ltd.

Inventor： Yuji OISHI ,  Koji MAEDA

IPC: H04L47/6275 ,  H04L47/28 ,  H04L67/12

Abstract: A communication device includes a classification unit that classifies received frames into a plurality of classes, a queueing unit that buffers the frames for each of the classes, a gate unit that opens/closes the frames, a scheduling unit that determines the open/closed state and sets a guard band as a transmission inhibition period at a proximity of a gate open state end time, to ensure a transmission timing of another class, and a transmission unit that transmits the frame passed through by the gate unit. The scheduling unit sets a guard band width corresponding to a frame maximum length, and controls the open/closed state to ensure the guard band width.