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Date transmission/reception method

A receiving method and data technology, applied in data exchange network, data exchange through path configuration, network connection, etc., can solve problems such as difficulty, bit error, and inability to obtain the receiving rate correctly.

Inactive Publication Date: 2004-09-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since bit errors may occur in the area indicating the packet length, the reception rate cannot be accurately calculated.
Further, since it is impossible to know what kind of packet loss actually occurred in the wireless section according to the sending and receiving rate ratio, it is difficult to determine how much error tolerance strength should be added (that is, to determine the threshold of the sending and receiving rate ratio)

Method used

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  • Date transmission/reception method
  • Date transmission/reception method
  • Date transmission/reception method

Examples

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Embodiment Construction

[0029] Embodiments of the present invention will be described below with reference to the drawings.

[0030] figure 1 It is an explanatory diagram showing a network targeted by the present invention. exist figure 1 In this example, the transmitting terminal 101 transmits the encoded and stored AV stream or the real-time encoded AV stream to the transmitting terminal 104 . The router 102 and the wireless gateway 103 are intermediate nodes. The network connecting the sending terminal 101 and the receiving terminal 104 is composed of a wired section and a wireless section, the nodes in the wired section are connected to each other by a router 102, and the wired section and the wireless section are connected to each other by a wireless gateway (also can be formed by a general router) 103. The wired section can be ISDN (Integrated Services Digital Network), ATM (Asynchronous Transfer Mode), FTTH (Fiber To The Home), etc., and the wireless section can be W-CDMA (Wideband Code Div...

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Abstract

On the basis of a state of data transmission and / or data reception in all of or one of intermediate nodes (102, 103) provided on a transport path between a transmission terminal (101) and a reception terminal (104), data to be received by the reception terminal (104) is determined. It is therefore possible to realize audio transport without disconnection and video transport without distortion even under an environment in which a wire section and a wireless section are integrally present.

Description

technical field [0001] The invention relates to a data sending and receiving method on a network with a wireless section. Background technique [0002] Conventionally, in the Internet and intranets, multicast transmission can be cited as a technique for realizing simultaneous transmission of images and audio. Multicast transmission is not the conventional one-to-one communication method between the sending terminal and the receiving terminal. The data sent by the sending terminal is copied in the router of the relay node according to the number of receiving terminals. The data is sent to multiple receiving terminals. In this way, when simultaneously transmitting to a plurality of receiving terminals, it is not necessary for the transmitting terminal itself to copy the data and transmit the data. In this way, by adopting the multicast transmission technique, the load on the transmission zone and the transmission terminal can be reduced. [0003] In multicast transmission, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/46H04L12/70H04L29/06H04L29/08
CPCH04L29/06523H04L2001/0093H04L1/007H04L1/0009H04L29/06496H04L1/004H04L29/06027H04L1/20H04L65/80H04L65/764H04L12/66H04L65/1101
Inventor 伊藤智祥山口孝雄荒川博松井义德能登屋阳司远间正真
Owner PANASONIC CORP