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Method and apparatus for assessing quality of communication channel in multi-domain network

A communication channel and network technology, applied in wireless communication, data exchange through path configuration, multi-frequency code system, etc., can solve problems such as limited scalability, inefficient channel detection scheme, and no two-way interaction

Active Publication Date: 2014-05-21
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The architecture limits scalability and does not allow true two-way interaction on the domain
Additionally, known channel sounding schemes for these networks tend to be inefficient

Method used

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  • Method and apparatus for assessing quality of communication channel in multi-domain network
  • Method and apparatus for assessing quality of communication channel in multi-domain network
  • Method and apparatus for assessing quality of communication channel in multi-domain network

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Embodiment Construction

[0021] The International Telecommunication Union (ITU) G.hn standard was defined to enable broadband data communications required by internal high data rate (ie broadband) applications. In G.hn, different domains can be used for internal network access over different media (eg, twisted-pair copper wire, coaxial cable, power cable). However, the available network resources (eg, spectrum) are limited by the properties of the medium and the network structure. In general, the G.hn medium can be viewed as a wideband channel on which devices share the same medium and available network resources.

[0022] To improve spectral efficiency (ie, throughput, latency, etc.), a bidirectional mechanism between two nodes can be used for sessions that are bidirectional in nature, where the transmitter and receiver communicate as part of the same transmission session. An example is a Transmission Control Protocol (TCP) session. The bidirectional mechanism in G.hn is only available for nodes co...

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Abstract

A method for assessing the quality of a communication channel in a multi-domain network is provided, the method comprising at a device attached to said communication channel : transmitting a probe signal onto said communication channel, said transmitting being coordinated with the transmission of at least one alien probe signal by another network node; subsequently to said transmitting, receiving a mixed feedback signal, said mixed feedback signal comprising a first component corresponding to said probe signal and a second component corresponding to said at least one alien probe signal; extracting said first component from said mixed feedback signal; assessing the quality of said communication channel on the basis of said extracted first component; wherein said probe signal and said at least one alien probe signal are designed to facilitate their separation after having been superimposed.

Description

technical field [0001] The invention relates to the field of home networks, in particular to the field of data transmission on different physical home network segments. Background technique [0002] In home networks, especially in home networks according to the G.hn series of recommendations developed by the ITU-T (see ITU-T Rec. G.9961), the communication between domains is carried out via a domain manager. This architecture limits scalability and does not allow true two-way interaction over the domain. Additionally, known channel sounding schemes for these networks tend to be inefficient. Contents of the invention [0003] Therefore, an object of embodiments of the present invention is to provide a more efficient channel sounding scheme for multi-domain networks. [0004] According to an aspect of the present invention there is provided a method for assessing the quality of a communication channel in a multi-domain network, the method comprising, at a device attached t...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L27/26H04L25/02
CPCH04L25/0226H04L27/2613H04L43/10H04L43/50H04W24/06
Inventor H·加卡宁
Owner ALCATEL LUCENT SAS