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Method for indicating the functional capability of the vehicle-to-environment communication in ISM radio bands

一种无线电、波段的技术，应用在无线通信、电气元件、网络拓扑等方向，能够解决无线电信道满载等问题

Active Publication Date: 2014-01-01
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The problem however is that the unlicensed ISM radio band frequency band is also used by multiple other communication devices
In an urban environment, too, the radio channel becomes so noticeably full that proper communication is no longer possible

Method used

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  • Method for indicating the functional capability of the vehicle-to-environment communication in ISM radio bands

Examples

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Embodiment Construction

[0021] According to the invention, a method for displaying the functionality and reliability of vehicle-to-environment communication in the ISM radio band is provided in a communication unit (not shown) involved in vehicle-to-environment communication. The communication unit can in particular be installed in the motor vehicle, but it can also be installed in other functional units or functional modules involved in the communication between the vehicle and the environment, especially if the communication unit is monitored or at least regularly controlled by a person.

[0022] The communication unit has a sending and receiving unit which is equipped with corresponding transmitters and receivers for sending and receiving communication information in the ISM radio band. For this purpose, a suitable microprocessor is provided in the sending and receiving unit for processing the communication protocol and for controlling the hardware contained in the sending and receiving unit. In a...

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Abstract

The invention relates to a method and a communications unit for carrying out the method for detecting communications problems in the vehicle-to-environment communications in an ISM radio band. In order to determine the functional ability or the performance capacity of vehicle-to-environment communications, the channel usage of the ISM radio band in use is determined by comparing the channel time occupied by communication messages to the maximum channel time available for communication messages, and a warning message is output if the occupied channel time exceeds a threshold value.

Description

technical field [0001] The invention relates to a method for determining communication problems during vehicle-to-environment communication in the ISM radio band and to a correspondingly configured communication unit, in particular of a motor vehicle. Background technique [0002] The ISM radio band is a radio band which can be used without a license for devices in the industrial, technological and medical fields, provided that the regulations especially for the duty cycle are observed. The abbreviation ISM stands for "Industrial, Scientific and Medical" here. This unlicensed ISM radio band is used in particular for wireless access and driver authorization communication in motor vehicles, also known as "RKE (Remote-Keyless-Entry)". In the European Union, frequency bands at 434 MHz and 868 MHz with a transmission power of 10 dBm or 14 dBm can be used as RKE communication radio bands. Other typical communication bands are the band around 2.4 GHz, and this band is used at 5 G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04W84/18H04W84/00
CPCH04W84/005H04W72/00H04W84/18H04W24/00H04W28/04H04W24/02
Inventor 乌尔里希·施特林
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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