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Wireless non-line-of-sight gigabit Ethernet transmission system and transmission method based on 700mhz-1100mhz variable frequency

A gigabit Ethernet and transmission system technology, applied in the field of wireless broadband long-distance Ethernet transmission, can solve problems such as high development cost, large frequency band attenuation, and serious multipath, and achieve difficult solutions, improved performance, and low equipment cost Effect

Active Publication Date: 2018-02-23
TELECAST TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The frequency band within 1.5GHz (especially within 1.2GHz) is more useful. The frequency band above 1.5GHz has greater attenuation, poor matching, large reflection, serious multipath, and high development costs.

Method used

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  • Wireless non-line-of-sight gigabit Ethernet transmission system and transmission method based on 700mhz-1100mhz variable frequency
  • Wireless non-line-of-sight gigabit Ethernet transmission system and transmission method based on 700mhz-1100mhz variable frequency
  • Wireless non-line-of-sight gigabit Ethernet transmission system and transmission method based on 700mhz-1100mhz variable frequency

Examples

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Effect test

Embodiment

[0060] Such as figure 1 , figure 2 As shown, a wireless non-line-of-sight Gigabit Ethernet transmission system based on a variable frequency of 700MHz-1100MHz, including terminal equipment and front-end equipment;

[0061]The terminal equipment includes a first RF antenna 1100, a first two-way radio frequency power amplifier 1200, a first transceiver chip 1300, a first baseband data processing chip 1400, an Ethernet function conversion module 1500, a multi-port switch 1600 and a first RJ45 interface 1700 The input end and the output end of the first RF antenna 1100 are respectively connected with the first output end and the first input end of the first two-way radio frequency power amplifier 1200, and the second input end and the first input end of the first two-way radio frequency power amplifier 1200 The second output terminal is respectively connected with the first output terminal and the first input terminal of the first transceiver chip 1300, and the second input term...

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Abstract

The invention discloses a wireless non-line-of-sight Gigabit Ethernet transmission system based on a variable frequency of 700MHz-1100MHz, including terminal equipment and front-end equipment; the terminal equipment includes a first RF antenna, a first two-way radio frequency power amplifier, a first Transceiver frequency conversion chip, first baseband data processing chip, Ethernet function conversion module, multi-port switch and first RJ45 interface; the front-end equipment includes a second RF antenna, a second two-way radio frequency power amplifier, channel selector, transmission channel, 1000base switch, main control CPU and second RJ45 interface. The entire sending and receiving process of the Ethernet transmission system is in TDD mode. The front-end equipment includes multiple transmission channels composed of transceiver frequency conversion chips and baseband data processing chips, which can double the bandwidth of data transmission; at the same time, only one transmission channel is in progress. In this way, co-channel interference is avoided; multi-channel Ethernet data is aggregated under the coordination of 1000base switches.

Description

technical field [0001] The invention relates to the technical field of wireless broadband long-distance Ethernet transmission, in particular to a wireless non-line-of-sight gigabit Ethernet transmission system and a transmission method based on a variable frequency of 700MHz-1100MHz. Background technique [0002] The wireless Ethernet broadband transmission technology currently used in the market is mainly based on the frequencies of 2.4GHz and 5GHz and LTE used by cellular mobile phones. The frequencies used by these technologies are relatively high, and the advantages are that the signal is stable, the interference received is small, and a small receiving antenna can be used. But the disadvantage of this frequency is also obvious, because frequencies exceeding 1GHz are easily absorbed by air, buildings, and plants, so they cannot be transmitted over long distances. [0003] my country's cable TV standard stipulates that the frequency band below 860MHz of the coaxial cable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/04H04B1/3816H04B1/40H04L12/935H04L5/14H04L49/111
CPCH04B1/0475H04B1/3816H04B1/40H04L5/1423H04L5/1446H04L49/30
Inventor 蔡茂杨钦
Owner TELECAST TECH CORP
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