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Method of beacon management for merging piconets

A piconet, beacon technology, applied in the field of communication, can solve problems such as mutual influence of devices

Inactive Publication Date: 2008-02-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, beacon management in such networks is problematic, especially because devices in different P2P WPANs (aka piconets) can affect each other

Method used

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  • Method of beacon management for merging piconets
  • Method of beacon management for merging piconets
  • Method of beacon management for merging piconets

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Embodiment Construction

[0034] Although the invention is illustrated and described herein with reference to particular embodiments, the invention should not be limited to the details shown. Rather, various modifications may be made in the details within the scope of equivalents of the claims and without departing from the invention.

[0035] The present invention provides a method for merging piconets. Piconets can be out of sync when they are close to each other. A piconet may include an overlap between respective Beacon Periods (BPs), an overlap between respective Distributed Reservation Protocol (DRP) periods, or an overlap between BPs and DRPs. The present invention determines whether a piconet is asynchronous and also determines the type of overlap between superframes of the piconet. According to the present invention, piconets are merged using rules based on the type of overlap. The present invention also provides a method for two piconets to discover each other in order to improve merge per...

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Abstract

A method for synchronizing communications between first and second piconets is provided. It is determined whether superframes corresponding to the first and second piconets are synchronized according to respective beacon period start times from the detected beacons. When the superframes are not synchronized, a type of overlap is determined. The type of overlap includes 1) an overlap between beacon periods, 2) an overlap between reservation periods and 3) an overlap between beacon periods and reservation periods of the superframes. The first and second piconets are merged into a single piconet according to rules based on the determined type of overlap.

Description

technical field [0001] The present invention relates to methods of communication, and in particular to methods for improved integrated beacon management of piconets. Background technique [0002] As a new wireless technology, wireless personal area network (WPAN) is being used for short-range connection of audio / video equipment in the home environment. [0003] Peer-to-peer (P2P) networks tend to self-configure, making system setup simple and easy. A distributed P2P WPAN is a network with a network architecture in which there is no central controller for resource management or scheduled maintenance. In this WPAN, each device sends its own beacon. Each device in the network has a dedicated beacon slot, and each device indicates the other devices' beacon slots in its beacon. The main advantage of such a network is that the network is effectively immune to a single node failure. In a centrally managed network, for example, if the central controller fails, the entire network...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04W48/16H04W84/18H04W92/02
CPCH04W48/16H04W92/02H04W84/18
Inventor 莫少敏V·M·维什涅夫斯基A·I·利亚霍夫A·A·萨福诺夫
Owner PANASONIC CORP