TD-LTE230MHz (Time Division Long Term Evolution 230MHz) based electric power wireless wideband radio frequency processing unit

Abstract

The invention relates to a TD-LTE230MHz (Time Division Long Term Evolution 230MHz) based electric power wireless wideband radio frequency processing unit. The radio frequency processing unit comprises a radio frequency system, an antenna feed system and an operating interface, wherein the antenna feed system comprises a power amplifier low-noise amplifier module, a power module, a lightning protection module; the radio frequency system comprises a digital processing module and a filter module; the operating interface module comprises an alarm interface, a fiber interface, a power interface and an antenna interface; the power amplifier low-noise amplifier module, the power module, the alarm module and the fiber interface are respectively connected with the digital processing unit; the power interface, the lightning protection module and the power module are sequentially connected; the antenna interface, the filter module and the power amplifier low-noise amplifier module are sequentially connected; and the radio frequency processing unit adopts a box structure. Aiming at the characteristics of more terminals, wide distribution, strong timeliness and high downstream and upstream bandwidth demands of power business, the invention designs the TD-LTE technology-based radio frequency processing unit for a power wireless wideband communication system. The radio frequency processing unit adopts an authorized frequency band between 23 MHz and 235 MHz and is of great significance for the construction of an intelligent power grid communication information platform.

Description

technical field [0001] The invention relates to the field of power wireless communication, in particular to a TD-LTE230MHz-based power wireless broadband radio frequency processing unit. Background technique [0002] The smart grid is the development direction of the future power grid, and the power communication system is an important link to realize the informatization and interaction of the smart grid. Among them, the wireless communication technology occupies an important position in the construction of the smart distribution grid with its unique advantages. With the evolution and upgrading of wireless communication technology, more and more industries are served by wireless communication, and wireless spectrum resources are becoming increasingly scarce, making it difficult to allocate suitable spectrum resources for new wireless broadband communication systems. According to the State Wuguan No. 1991 [5] document, a total of 40 discrete carriers between 223MHz and 235MHz...

AI Technical Summary

Problems solved by technology

With the evolution and upgrading of wireless communication technology, more and more industries are served by wireless communication, and wireless spectrum resources are becoming more and more scarce, making it difficult to allocate suitable spectrum resources for new wireless broadband communication systems

According to the State Wuguan No. 1991 [5] document, a total of 40 discrete carriers between 223MHz and 235MHz are allocated to the power industry. For a long time, analog digital transmission stations have been used to transmit data. It is only 8000b / s, and the network management function is weak. It can only realize point-to-point transmission. It does not have large-scale networking capabilities and cannot well meet the needs of smart grid interactive services.

Many provincial power companies are gradually replacing 230 digital radio stations by renting public networks, which makes the spectrum authorized by power companies less and less effective. GPRS / CDMA has insufficient transmission bandwidth due to its public network attributes ( The theoretical maximum instantaneous rate of GPRS is 171kbps, and the actual measurement is generally 8-48kbps; the theoretical rate of CDMA1X is 153.6Kbps, and the actual measurement is generally 50-80kbps), which cannot effectively carry the high-speed, two-way interactive services in the smart grid

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