System and method for filtering 3G data packet based on FPGA

A filtering system and data packet technology, applied in the field of TD-SCDMA network security, can solve the problems of lagging software processing speed and not considering hardware characteristics, etc., and achieve the effect of increasing the number of users and wide application prospects

Inactive Publication Date: 2009-11-04
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Packet filtering usually needs to check and filter the message header and message body separately. The existing mainstream technology is quintuple filtering, which extracts the IP source address, IP destination address, protocol type, application layer source port number and Destination port number, used for diversion and filtering of IP data packets, that is, packet filtering firewalls and routers, does not track users, and most packet filtering algorithms (such as Hicuts, Hierarchical Tries, etc.) are implemented for software, without considering the characteristics of hardware , and with the improvement of the network speed and the increase of the number of rules, the software processing speed is relatively lagging behind

Method used

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  • System and method for filtering 3G data packet based on FPGA
  • System and method for filtering 3G data packet based on FPGA
  • System and method for filtering 3G data packet based on FPGA

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Embodiment Construction

[0030] For chip selection, we use Virtex-5 LX50T Field Programmable Gate Array from Xilinx Company, whose main hardware parameters are as follows:

[0031] The array in the configurable logic block (CLB) is: 120×30; the slice is: 7200, and each slice contains four LUTs and four flip-flops; the maximum distributed RAM is: 480Kb;

[0032] Block RAM module up to 2160Kb

[0033] Number of Ethernet MAC modules: 4

[0034] Number of RocketIO GTP transceivers: 12, operating speed is 100Mb / s~3.2Gb / s, full-duplex serial transceiver

[0035] Total number of I / O groups: 15

[0036] Maximum number of user I / Os: 480

[0037] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0038] Such as figure 1 As shown, the position of the present invention in the supervision system as a whole can be seen, the filter equipment is connected in series between SGSN and GGSN, to ensure that the data link between SGSN and GGSN is unobstructed, t...

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Abstract

The invention discloses a system and a method for filtering a 3G network data packet based on FPGA, and belongs to a data filter method in the field of TD-SCDMA network security. The system comprises an EMAC hardcore module and a user processing logic module, wherein the user processing logic module comprises a control packet analysis module, two GTP data packet analysis modules, a read-write control module, a characteristic information search engine, a characteristic information storage module and two forward control modules. The method comprises a control packet processing method and a GTP data packet processing method. The processing capability is strong, and the universality is high.

Description

technical field [0001] The invention relates to an FPGA-based 3G network data packet filtering system and method, and belongs to the data filtering method in the field of TD-SCDMA network security. Background technique [0002] The third-generation mobile communication system is IMT-2000. The 3G wireless interface standard was named as the IMT-2000 wireless interface technical specification in May 2000. This specification includes code division multiple access (CDMA) and time division multiple access (TDMA). There are five techniques in total. Among them, CDMA is recognized as a mainstream technology, including Frequency Division Duplex (FDD) and Time Division Duplex (TDD) technologies. TD-SCDMA system is a flexible combination of two basic transmission modes of TDMA and CDMA. It is a wireless communication standard proposed by China Wireless Communication Standardization Organization (CWTS) and approved by ITU. The system is especially suitable for providing high-density ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/08H04L9/00H04W12/088
Inventor 黄杰秦中元张晓晓孙婷婷
Owner SOUTHEAST UNIV
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