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Method and device for relocating address space

A relocation, address space technology, applied in network data management, electrical components, transmission systems, etc.

Inactive Publication Date: 2012-11-21
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the described relocation process is that it can lead to fragmented address spaces

Method used

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  • Method and device for relocating address space
  • Method and device for relocating address space
  • Method and device for relocating address space

Examples

Experimental program
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Embodiment Construction

[0028] figure 1 A tree structure showing hierarchical addressing in network 1. The network tree includes empty node 2 (open symbols) and a node occupied by router 3 (shaded symbols). The reference symbols for empty Node 2 and Router 3 carry two indices specifying the position of Node 2 or Router 3 within the network tree. The first index represents the network depth D, which is also indicated in figure 1 on the right hand side of the . The second index consecutively numbers the nodes within each network depth D (empty nodes 2 and routers 3 of occupied nodes). The leaves of the tree can also be occupied by end devices.

[0029] router 3 0-0 Indicates the root of the network tree. this router 3 0-0 The total available address space is allocated. By way of example, assume that one of the addresses in the address space is used to address router 3 0-0 itself, some addresses are used to connect end devices to router 3 0-0 , and the remaining addresses are evenly split into...

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PUM

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Abstract

The invention relates to a method for relocating address space in a peer-to-peer network with hierarchical addressing is performed in a network (1) that has a tree structure with routers (3) at different network depths(D). Each router(3) has an assigned address space (10), including an identifying address (11) for the router (3), one or more address blocks (12) for providing further routers (3) with assigned address space(10) and a further address block (13) for providing end devices with identifying addresses. The size of the address space (10) assigned to a router (3) without relocation depends on the network depth (D) of the router (3) in a predetermined way, leading to specific sizes of the address space (10) assigned to routers (3). The method comprises the following steps: An association request is received from a joining router or a joining end device by a first router (3)of the network(1), wherein the address space (10) of the first router (3) is exhausted. The first router (3) sends a relocation request (20) to a second router(3) of the network (1), wherein the relocation request denotes a size of a requested address block (12), and wherein the size of the requested address block(12) equals one of the specific address space sizes. The invention further relates to a router (3) for use in an according network (1), the router (3) being suited to perform the described method.

Description

technical field [0001] The invention relates to a method for relocating an address space in a peer-to-peer network utilizing hierarchical addressing. The invention further relates to a router for use in a peer-to-peer network suitable for carrying out said method. Background technique [0002] Peer-to-peer and especially wireless peer-to-peer networks are becoming increasingly important for applications such as building automation, lighting control, surveillance applications and medical applications. [0003] Peer-to-peer networks typically employ addressing schemes that enable flexible organization and reorganization of the network, including the option for new devices to join the network at any time and at various access points (ad-hoc networks). An example of a flexible peer-to-peer network is provided using the ZigBee standard specified by the ZigBee Alliance. [0004] The ZigBee standard proposes a hierarchical scheme in which addresses are assigned in a distributed m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
CPCH04L29/12962H04L61/2061H04L61/6081H04W84/18H04L29/12283H04L45/02H04W8/26H04L61/5061H04L2101/681
Inventor A.M.M.勒肯斯A.阿奇特泽恩X.王
Owner KONINK PHILIPS ELECTRONICS NV