Patent · US Active

Systems and methods for interoperability positive train control

US8605754B2 · kind B2 · utility

11Cited by
32References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 18, 2012
Grant dateDec 10, 2013
Priority date—
Expiry dateDec 18, 2032

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB61L27/70
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A method of messaging in a communications system includes generating a message at an application layer. The message and associated message handling codes are passed to a transport layer and the message fragmented. The fragmented message and the message handling codes are passed to a network layer and the fragmented message selectively segmented as indicated by the message handling code. The selectively segmented message and the message handling code are passed to a link layer and formed into a packet including packet type information and data parts. The packet is passed to a physical layer and a preamble is added. The preamble and packet are transmitted with a radio.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.