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Method and node for locating network user

A network node, network technology, used in location-based services, data exchange networks, digital transmission systems, etc.

Inactive Publication Date: 2008-07-16
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the location of the user / end node can only be tracked to the closest layer 3 node

Method used

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  • Method and node for locating network user
  • Method and node for locating network user

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Embodiment Construction

[0032] The method according to the invention will now be described with reference to FIGS. 1 and 2 . Using this method, an end node 1 in a packet data communication network can be geographically located.

[0033]According to the invention, this is achieved by first creating (step 101) information representing the path of a data packet between a first end node 1 and a second end node 9 in the network, wherein the first end node 1 represents the node being queried in the network , and the second end node 9 represents any end node in the network (for example, a public server, a private PC or others), and it is only illustrated in a schematic form in FIG. 2 . It is usually connected to a first end node via an access node 2c and a number of nodes not represented in FIG. 2 . The additional node indicated by the dotted line connecting the access node 2c to the rest of the network may be either a layer 2 node or a layer 3 node.

[0034] Information about the path between two nodes 1...

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Abstract

A method and network node for geographically locating an end node in a packet data communication network. The network node creates and stores information representing a path of data packets between first and second end nodes. At least one node address along the path is identified using the information. The network node then determines which address corresponds to an access node for the first end node and determines which access port of the access node the first end node is connected to. The access node address and port are then mapped against geographic data in a data bank to obtain information regarding the location of the first end node.

Description

technical field [0001] The invention relates to a method and a network node for geographically locating an end node in a packet data communication network. [0002] One problem with IP-based applications, such as Voice over IP (VoIP), is that it is difficult to geographically locate IP clients. This is a legal requirement in most countries for traditional landline telephony, and it will likely become a requirement for VoIP as well, but so far no reliable method of geographically locating IP clients exists. Background technique [0003] In a conventional network environment, such as the Internet, multiple devices are connected by a communication medium. Such networks enable communicating devices (or users of devices) to easily exchange and share information among the various devices. Each device that constitutes an interface to a user may be referred to as an end node, as compared to intermediate nodes such as switches and routers that act as intermediate nodes and forward ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/24H04L41/00H04L41/12H04L67/52
CPCH04L12/24H04W4/02H04L41/00H04L41/12H04L67/18H04L67/52
Inventor J·科尔希
Owner TELEFON AB LM ERICSSON (PUBL)