Method and apparatus for multiple description coding

A technology of multi-description coding and equipment, applied in the field of multi-description coding, can solve problems such as information loss, and achieve the effects of reducing processing capacity, processing time, and processing cost.

Inactive Publication Date: 2013-11-06
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In any communication system, there is a risk that information transmitted from a sender to a receiver will be lost during transmission

Method used

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  • Method and apparatus for multiple description coding
  • Method and apparatus for multiple description coding
  • Method and apparatus for multiple description coding

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Embodiment Construction

[0032] figure 1 A communication system 100 comprising a first communication node 105 and a second communication node 110 is shown schematically. The first communication node 105 and the second communication node 110 are able to communicate with each other via an interface 115 employing diversity. The interface 115 can have any n>1 communication channels 120—in figure 1 , the interface 115 is shown as including three distinct communication channels 120 (j) . Both the first and second communication nodes 105 and 110 are generally capable of acting as both receiving and sending nodes. However, to simplify the description of the present invention, the first communication node 105 will be described as the sending node 105 in the following, and the second communication node 110 will be described as the receiving node 110 in the following. The sending node 105 includes an encoder 125 and the receiving node 110 includes a decoder 130 .

[0033] Systems operating on multiple descr...

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Abstract

The present invention relates to a method and apparatus to be used in designing an index assignment matrix for use in multiple description coding of an information signal. The bandwidth of the index assignment matrix is selected in dependence of transmission condition information relating to a transmission condition of a communication channel onto which a description of the information signal can be transmitted.

Description

technical field [0001] The present invention relates to the field of multiple description coding in communication systems, and in particular, to the design of index assignment matrices to be used for multiple description coding. Background technique [0002] In any communication system, there is a risk that information transmitted from a sender to a receiver will be lost during transmission. To compensate for such losses, diversity is often introduced so that information is transmitted over two or more independent channels. Such independent channels can eg be realized by taking two or more different transmission paths and / or by transmitting information at two or more different points in time or at different frequencies. [0003] By employing diversity to the communication interface, the amount of redundant information transmitted over the interface will generally increase. Since transmission bandwidth is often a scarce resource on a communication interface, it is generally...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/35
CPCH03M7/30H03M7/3057H03M13/353H04B7/0632H04B7/0634H04L5/0057
Inventor M·库罗帕温斯基J·克莱萨W·B·克莱因
Owner TELEFON AB LM ERICSSON (PUBL)
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