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Data transmission method and device

A data transmission method and data transmission channel technology, applied in the field of communication, can solve the problems of wasting available channels, affecting system performance, etc., and achieving the effect of effective bandwidth resources

Active Publication Date: 2015-04-29
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In actual data transmission applications, since it is necessary to ensure that the data volume of the data link layer message unit is an integer multiple of the data transmission channel, when a single channel failure occurs on the bus, if this bus self-healing technology is used, it needs to be doubled. Modify the data transmission channel, so that the bandwidth will be reduced to at least 1 / 2 of the original, which seriously affects the system performance and wastes a lot of available channels

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Embodiment Construction

[0047] The embodiment of the present invention provides a data transmission method for adaptively adjusting the transmission mode of the data unit according to the conditions of the full bandwidth transmission channel when the full bandwidth transmission channel fails.

[0048] The following briefly describes the system architecture applied by the data transmission method in the embodiment of the present invention. The protocol module and control module of the sending end (source module) and the receiving end (target module) will be described respectively.

[0049] 1. The protocol module of the sender;

[0050] The fault-tolerant protocol is mainly designed from all levels of transmission (including the physical layer, data link layer, transport layer and transaction layer) to ensure that the transmission process is efficient and error-free. At the same time, when an error occurs during transmission, a certain degree of self-healing capability is required to ensure the normal operati...

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Abstract

Disclosed in an embodiment of the present invention is a data transmission method used for adaptively adjusting the transmission mode of data units according to the conditions of full bandwidth transmission channels in the case that failures occur in the full bandwidth transmission channels. The method disclosed in the embodiment of the present invention comprises: detecting the full bandwidth transmission channels of a bus; if failures occur in the full bandwidth transmission channels and the number of the full bandwidth transmission channels in which failures occur is smaller than or equal to M, selecting N full bandwidth transmission channels for the transmission of the data units from the full bandwidth transmission channels in which no failures occur ; and if failures occur in the full bandwidth transmission channels and the number of the full bandwidth transmission channels in which failures occur is larger than the M, reconfiguring the size of the data units according to the number of the full bandwidth transmission channels in which no failures occur and the number of target ticks.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a data transmission method and device. Background technique [0002] The bus is a common channel for transmitting information between various functional components of the computer. It is a transmission harness composed of wires. According to the type of information transmitted by the computer, the computer bus can be divided into a data bus, an address bus, and a control bus. Transmission of data, data address and control signals. The bus is an internal structure. It is a common channel for CPU, memory, input devices, and output devices to transmit information. The various components of the host are connected through the bus, and the external devices are connected to the bus through the corresponding interface circuit, thus forming a computer Hardware system. [0003] The bandwidth of the bus affects the quality of system service, and the decrease of the bus bandwidth may cause th...

Claims

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Application Information

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IPC IPC(8): H04L1/22H04L1/24H04L12/40G06F13/14H04L45/243H04L45/28
CPCH04L1/0007H04L1/22H04L12/40176H04L47/10H04L2001/0094H04L45/28H04L45/245H04L61/2592H04L69/324H04L69/326
Inventor 胡杏胡瑜单书畅李晓维
Owner HUAWEI TECH CO LTD