Unlock instant, AI-driven research and patent intelligence for your innovation.

Anti-relay attack communication

A technology of timing information and synchronization signal, applied in wireless communication, secure communication device, duplex signal operation, etc., can solve the problems of theft, being activated, etc.

Active Publication Date: 2022-07-15
TEXAS INSTR INC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Car keyless entry systems (PEPS systems in particular) have faced relay attacks that allow the vehicle to be opened without the owner's awareness and possibly started and thus stolen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-relay attack communication
  • Anti-relay attack communication
  • Anti-relay attack communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The drawings are not necessarily drawn to scale. In the drawings, the same reference numbers refer to similar or equivalent elements. Some of the illustrated acts or events may occur in different orders and / or concurrently with other acts or events. Furthermore, some of the illustrated acts or events may not be required to implement methods in accordance with the present specification.

[0015] As used in this specification without further limitation, the terms "coupled to" or "coupled with" (etc.) describe an indirect or direct electrical connection. Thus, if a first device is "coupled" to a second device, the connection may be through a direct electrical connection with only parasitics in the path, or through an indirect electrical connection via intermediate items including other devices and connections. For indirect coupling, the intermediate term typically does not modify the information of the signal, but can adjust its current level, voltage level and / or power ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In the described example of a method of anti-relay attack communication in a wireless communication system (100), a master wireless device (master) (110) transmits a synchronization signal to a slave wireless device (slave) (120). The synchronization signal includes timing information including a common time reference and a time slot duration for interlocking a master (110) communication slot and a slave (120) communication slot for the master (110), thereby providing alternating TX and RX role modes. The master device (110) analyzes the slave device (120) packet data received from the slave device (120) to identify overlapping transmissions of packet data from the master device (110) and the slave device (120), and if the overlap is detected , suspend communication from the master (110) to the slave (120) to prevent relay attacks.

Description

technical field [0001] The present application relates to preventing relay attacks, which involve relaying a signal from one wireless device to another wireless device in a manner that spoofs a nearby transmitting entity of the device intended to receive the relayed signal. Background technique [0002] One example wireless communication system that can experience a threat known as "relay attack" involves modern vehicles. Modern vehicles often support a remote entry system, which may be referred to as Passive Keyless Entry (PKE), Passive Entry System (PES) or Passive Entry Passive Start (PEPS) (this will be the term used herein), which enables The user is able to gain access to the vehicle without pressing any buttons. PEPS systems use signals for transmission via modulated radio frequency (RF) or via infrared signals. A card, commonly referred to as a keyfob, is a radio used for this purpose that includes a small secure hardware device that wirelessly communicates with an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G07C9/00H04L9/40H04L67/12H04L7/033B60R25/24
CPCH04L63/1416H04L63/1441G07C9/00309H04L5/16H04L7/033H04L63/1466H04L67/12H04W56/001H04W84/20H04W12/122H04L63/08H04L63/1433
Inventor T·莫托斯K·T·勒
Owner TEXAS INSTR INC