Security mechanism for short range radio frequency communication

A signal and frequency technology used in the field of short-range radio frequency communication

Inactive Publication Date: 2016-11-09
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, existing mechanisms for short-range RF communications are expected to be susceptible to unauthorized discovery, tracking, and inventory of radio transponders such as RFID tags, devices configured to operate as radio transponders, and the like

Method used

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  • Security mechanism for short range radio frequency communication
  • Security mechanism for short range radio frequency communication
  • Security mechanism for short range radio frequency communication

Examples

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Embodiment Construction

[0016] A capability for securing short-range radio frequency (RF) communications is presented here. In at least some embodiments, the ability to secure short-range RF communications is provided by configuring the RF tag and RF reader so that only the RF reader (or any other suitably configured RF reader) can detect the presence of the RF tag. In at least some embodiments, the RF tag is configured to receive a signal from the RF reader and use backscatter distribution modulation to spectrally distribute the received signal at the RF tag to form a signal having an average energy below the noise threshold , thereby rendering (render) in the case of RF readers that are not configured to correctly dedistribute RF tags' distributed signals (or any other RF that is not configured to properly dedistribute RF tags' distributed signals) reader) cannot detect RF tags. In this way, RF tags can be configured such that they can only be detected by authorized RF readers that are properly co...

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PUM

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Abstract

A capability for securing short range radio frequency (RF) communication is presented. The capability for securing short range RF communication may be provided by configuring an RF tag and an RF reader such that only that RF reader (or any other appropriately configured RF reader) is able to detect the presence of the RF tag. The RF tag may be configured to receive a signal from an RF reader and to use backscatter spread modulation to spectrally spread the received signal at the RF tag to form a spread signal having an average energy per unit frequency that is below a noise threshold, thereby rendering the RF tag undetectable by the RF reader if the RF reader is not configured to correctly de-spread the spread signal of the RF tag (or by any other RF reader not configured to correctly de- spread the spread signal of the RF tag).

Description

technical field [0001] The present disclosure relates generally to short-range radio frequency (RF) communications, and more particularly, but not exclusively, to the security of short-range RF communications. Background technique [0002] Short-range radio frequency (RF) communications can be used in a variety of contexts and for a variety of purposes. For example, short-range RF communication standards based on radio frequency identification (RFID) can be used for asset tracking (e.g., tracking products through the design process, tracking items through warehouses, tracking animals and humans, etc.), infrastructure access (e.g., keyless entry into buildings and other locations), data exchange, etc. Similarly, short-range RF communication standards based on Near Field Communication (NFC), for example, can be used for contactless transactions, data exchange, simplified setup of more complex communications, and the like. [0003] Short-range RF communications are typically ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/07H04W12/08
CPCG06K19/0723H04W12/08H04W84/18H04B5/72H04W12/086G06K19/0702G06K19/07309H04B5/77
Inventor A·马什哈迪V·文卡特斯瓦兰A·博兰
Owner ALCATEL LUCENT SAS
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