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Method and system for realizing 10-gigabit Ethernet electrical port transmission based on FPGA (field programmable gate array)

An Ethernet and electrical port technology, applied in the field of wireless transmission, can solve the problems of difficult construction, limited bandwidth, complicated design, etc., and achieve the effect of simplifying construction difficulty, reducing development cost, and improving transmission bandwidth

Active Publication Date: 2017-02-08
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional active room distribution system has problems such as limited bandwidth, complex design, and difficult construction. How to solve these problems is the key to the evolution of traction technology

Method used

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  • Method and system for realizing 10-gigabit Ethernet electrical port transmission based on FPGA (field programmable gate array)
  • Method and system for realizing 10-gigabit Ethernet electrical port transmission based on FPGA (field programmable gate array)
  • Method and system for realizing 10-gigabit Ethernet electrical port transmission based on FPGA (field programmable gate array)

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Experimental program
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Embodiment 1

[0037] The present invention proposes a method for applying the 10 Gigabit Ethernet electrical port transmission technology to a wireless transmission system. Here, the new indoor distribution system is taken as an example, but it is not limited to the new indoor distribution system. The new indoor distribution system introduced here is a coverage solution that directly couples base station signals, mainly consisting of an access unit (AU, Access Unit), an extension unit (EU, Extended Unit), and a remote unit (RU, Remote Unit) It consists of three parts. The system supports multiple networking modes. Here, the star networking mode is taken as an example. Multiple sources are introduced into the corresponding radio frequency interface of the access unit through the coupler, and the access unit is connected with the expansion unit in star form. The specific networking as attached image 3 shown.

[0038] Such as Figure 4 As shown, the implementation method of the present inv...

Embodiment 2

[0050] The difference between Embodiment 2 and Embodiment 1 is that Embodiment 1 is a method for realizing 10 Gigabit Ethernet electrical port transmission based on FPGA during downlink, while Embodiment 2 is a method for realizing 10 Gigabit Ethernet electrical port transmission based on FPGA during uplink.

[0051] The uplink working process is the reverse process of the downlink. The only difference is that at the receiving end of the uplink expansion unit, due to the relatively high rate of the single-bit 10Gigabit signal sent by the 10Gigabit PHY chip, data may appear through protocol conversion and recovery. In the case of misalignment, add a mechanism to automatically judge whether the recovered parallel data is misaligned and restore it. The specific operation method is to count several ways of possible misalignment according to the actual way of testing the special array, and enter the adjustment module to adjust when the error indication bit of the data signal is dete...

Embodiment 3

[0057] This embodiment is a system embodiment, and belongs to the same technical concept as the above-mentioned method embodiments 1 and 2. Please refer to the above-mentioned method embodiments 1 and 2 for the content not described in detail in this embodiment.

[0058] Such as Figure 3-5 As shown, a system for implementing 10 Gigabit Ethernet electrical port transmission based on FPGA in the present invention includes an access unit, an extension unit and a remote unit, and multiple external sources are introduced into the corresponding radio frequency of the access unit through a coupler. an interface, the access unit is connected to the extension unit through an optical fiber, and the extension unit is connected to the remote unit through a network cable;

[0059] The hardware of the expansion unit adopts the platform architecture of CPU+FPGA+10 Gigabit PHY chips. The functions to be completed include realizing photoelectric conversion, combining digital intermediate freq...

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Abstract

The invention discloses a method and system for realizing 10-gigabit Ethernet electrical port transmission based on an FPGA (field programmable gate array) and belongs to the wireless transmission field. A 10-gigabit Ethernet electrical port transmission technology is applied to transmission between an expansion unit and a remote end unit. The main implementation part of the 10-gigabit Ethernet electrical port transmission technology is completed in the FPGA of the expansion unit. According to the expansion unit, a CPU+FPGA+10-gigabit PHY chip platform architecture is adopted to realize forwarding from wireless optical port signals to 10-gigabit Ethernet electrical port signals; an interface processing module is additionally adopted in the FPGA of an original architecture; and the interface processing module and an external 10-gigabit PHY chip cooperate with each other to complete corresponding work. Compared with the prior art, the method and system of the invention can improve the transmission bandwidth of a system in the wireless transmission field to a certain extent, make networking modes more flexible and can realize POE (Power Over Ethernet); and the method and system are realized based on the existing FPGA of the original architecture, so that implementation cost and development difficulty can be reduced.

Description

technical field [0001] The invention relates to the field of wireless transmission, in particular to a method and system for realizing 10 Gigabit Ethernet electrical port transmission based on FPGA. Background technique [0002] With the rapid development of urban mobile users and the continuous increase of high-rise and large buildings, the system capacity and coverage requirements continue to rise, making indoor distribution systems widely used. In the post-4G era with the rapid development of wireless transmission technology, based on the environment of multi-network and multi-mode co-construction by China Tower Corporation, the three major operators will definitely develop in the direction of deeper coverage, and the investment in indoor deep coverage will continue to increase in the future. However, the traditional active room distribution system has problems such as limited bandwidth, complex design, and difficult construction. How to solve these problems is the key to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/935H04L12/931H04L49/111
CPCH04L49/30H04L49/351
Inventor 蔡清谭红伟欧文军
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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