Data message fragmentation method and device and data message recombination method and device

A data message and message technology, applied in the field of data communication, can solve problems such as low efficiency and complex fragmentation integrity, and achieve the effect of simple implementation and improved reorganization efficiency

Active Publication Date: 2017-11-10
MAIPU COMM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem of complex and low efficiency in judging the fragmentation integrity of fragmented messages in the traditional technology during the reorganizat

Method used

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  • Data message fragmentation method and device and data message recombination method and device
  • Data message fragmentation method and device and data message recombination method and device
  • Data message fragmentation method and device and data message recombination method and device

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Embodiment Construction

[0032] Such as figure 1 As shown, the fragmentation device of the data message in the present invention includes a fragmentation processing module and a fragmentation message sending module:

[0033] Fragmentation processing module, used for fragmenting the data message to be sent, and adding header information in each fragmented message; said header information is as follows: figure 2 As shown, it includes a fragmentation ID, a fragmentation sequence number, and a fragmentation mark; the fragmentation ID is used to distinguish the fragmentation messages of different data packets; the fragmentation sequence number is used for the fragmentation position; the Fragmentation marks are used to distinguish the first, middle and last slices;

[0034] The fragmented message sending module is used to send the fragmented message.

[0035] Based on the above fragmentation device, the data packet fragmentation method realized by the present invention includes:

[0036] The fragmentati...

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Abstract

The invention relates to the field of data communication. For the problem that in the traditional technology, the judgment of fragment completeness is relatively complex and is relatively low in frequency in a recombination process of fragment messages, the invention provides a data message fragmentation method and device and a data message recombination method and device. The message recombination efficiency is improved. The recombination device comprises a fragment message receiving module which is used for receiving the fragment messages and submitting the fragment messages to a recombination module; and the fragment message recombination module which is used for establishing or searching recombination control blocks after the fragment messages are received, judging whether the received fragment messages are complete or not based on the recombination control blocks and recombining the fragment messages if the received fragment messages are complete. According to the methods and the devices, bits in bitmaps of the recombination control blocks are correspondingly associated with fragment messages serial numbers; after the fragment messages of a certain serial number are received, the fragment messages correspond to a position 1, so whether the fragments are received completely or not can be rapidly and comprehensively judged based on a tail fragment mark and the number of continuous 1 in a recombination map, and the recombination efficiency is improved.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a fragmentation method and device for a data message, and a recombination method and device. Background technique [0002] In the field of data communication, data packet fragmentation and reassembly is a common technology, such as IP packet fragmentation and reassembly technology, multi-link PPP packet fragmentation and reassembly, ATM cell-based fragmentation and reassembly, etc. The reassembly of data packets is generally completed by software, and the efficiency of software reassembly must be considered. When reassembling packets, judging the integrity of fragments is more complicated, and it is also a bottleneck in the efficiency of reassembling packets. Improving the efficiency of judging the integrity of fragments is the key to improving reassembly efficiency. Contents of the invention [0003] Aiming at the problem of complex and low efficiency in judging the fragment...

Claims

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Application Information

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IPC IPC(8): H04L12/883H04L12/861H04L49/9015
CPCH04L49/9015H04L49/9057
Inventor 何三波
Owner MAIPU COMM TECH CO LTD
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