Fragmented data packet processing method and device

A processing method and technology for sharding data, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as data arrival and matching failure

Active Publication Date: 2020-01-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the fragmented data packets are not reassembled on the sgi interface, the match will fail when the service flow template is matched, so that the data that goes through the dedicated bearer goes to the default bearer

Method used

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  • Fragmented data packet processing method and device
  • Fragmented data packet processing method and device
  • Fragmented data packet processing method and device

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Embodiment Construction

[0046]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] Due to the limit of the link layer on the length of data transmission, if the length of the IP message exceeds the limit of the link layer, the IP message needs to be fragmented, so that each fragmented data packet of the fragmented IP message The length is within this limit, and each fragmented data packet contains its own IP packet header, and the 16-bit identification number in the IP packet header uniquely records the identificati...

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Abstract

The invention discloses a fragmented data packet processing method and device. The method comprises the following steps: receiving a fragmented data packet of an IP message, wherein the fragmented data packet comprises address information of the IP message; acquiring the IP message according to the address information of the IP message; obtaining a fragmentation data packet set and an MTU value set corresponding to the IP message, with one element in the fragmentation data packet set corresponding to one fragmentation data packet of the IP message, and the element in the MTU value set corresponding to the MTU value of each fragmentation of the IP message during fragmentation; determining a target position of the fragmented data packet in the fragmented data packet set according to the fragmented offset of the received fragmented data packet and the MTU value set; and updating the fragmented data packet set according to the target position of the fragmented data packet in the fragmenteddata packet set. The recombination efficiency is improved.

Description

[0001] This application is a divisional application with an application date of November 11, 2015, an application number of 201510770036.2, and an invention title of "A Fragmented Data Packet Processing Method and Device". technical field [0002] The present invention relates to the technical field of wireless communication, in particular to a method and device for processing fragmented data packets. Background technique [0003] As services such as data downloads in the LTE network become more frequent, the data traffic transmitted in the network and the services of data packet switching increase rapidly. Since each packet switching network technology has an upper limit on the amount of data transmitted on a physical frame, that is, the maximum transmission unit MTU (Maximum Transmission Unit, maximum transmission unit value) of the physical network, different link types can support The MTU is different, which is specified in the relevant RFC documents. For example, the MT...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/953H04L12/893H04L12/805H04L47/43H04L47/36H04L47/40
CPCH04L49/9057
Inventor 周水生温红根张郑锟
Owner DATANG MOBILE COMM EQUIP CO LTD
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