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Beacon transmission and reception using directional antennas

A directional antenna and beacon transmission technology, applied in wireless communication, access restrictions, electrical components and other directions, can solve the problem of not receiving beacon signals

Active Publication Date: 2013-05-01
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wireless device 220a points its directional antenna toward beaconing device 210, but it still may not receive the beacon signal because beaconing device 210 points its directional antenna away from wireless device 220a
Meanwhile, beaconing device 210 points its directional antenna toward wireless device 220b, but wireless device 220b may not receive the beacon signal because its directional antenna is pointing away from beaconing device 210

Method used

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  • Beacon transmission and reception using directional antennas
  • Beacon transmission and reception using directional antennas
  • Beacon transmission and reception using directional antennas

Examples

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Embodiment Construction

[0018] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these Examples are given as illustrative examples of the invention.

[0019] image 3 One embodiment of a setup for broadcasting and receiving beacon signals using a directional antenna is illustrated. image 3 A wireless beacon transmitting device (beaconing device) 310 and a wireless beacon receiving device 320 are illustrated.

[0020] The beaconing device 310 includes a beacon signal generator for generating a beacon signal and a directional antenna system for transmitting the beacon signal. The directional antenna system of the beaconing device 310 generates image 3 Directional antenna pattern with main lobe shown in . The directional antenna system o...

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PUM

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Abstract

A system for broadcasting and receiving a beacon signal includes a beacon transmitter (310, 400) and a beacon receiver (320, 500). The beacon transmitter includes a beacon signal generator (410) to generate a beacon signal, and a directional antenna system (420) to selectively transmit the beacon signal in a corresponding one of M different directions during each one of M beacon slots (342) during a beacon period (340) in each of a plurality of superframes (330). The beacon receiver includes a beacon signal detector (510) to receive and detect the beacon signal, and a directional antenna system (520) having an antenna pattern including a main lobe and being adapted to selectively steer the main lobe in a selected one of N different directions during each of a plurality of receiver frames each having a time period substantially equal to a time period of one of the superframes.

Description

technical field [0001] The present invention relates to wireless communication devices and methods, and more particularly, to methods and systems for beacon transmission and reception for wireless devices employing directional antennas. Background technique [0002] Beacon signals are widely used to communicate important control information between wireless devices in both centralized and distributed wireless networks. Specifically, when a "new" wireless device has just been turned on, or has just moved into an area where one or more other wireless devices (e.g., wireless access points) are already operating, the beacon signal includes such that the "new" wireless device Important information that a new" wireless device can establish communication with other existing wireless device(s). Such information may include timing information for synchronizing communications between wireless devices, operating channels or frequencies, time slot assignments for data transmission, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/08H04W48/16H04W74/04H04W16/28
CPCH04W74/04H04W48/08H04W48/16H04W16/28
Inventor S·-A·塞耶迪-埃斯法哈尼C·-T·仇R·陈
Owner KONINK PHILIPS ELECTRONICS NV