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Method for realizing automatic transfer power control of digital microwave transmission system

A transmission system and automatic transmission technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of link transmission fading, signal instability at the receiving end, signal interruption, etc., to reduce operating costs, improve error characteristics, The effect of reducing the difficulty of use

Active Publication Date: 2015-02-18
WUHAN HONGXIN TELECOMM TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0003] During the use of the digital microwave transmission system, due to the complexity of the wireless transmission environment, the fading of the link transmission will cause the signal at the receiving end to be unstable or even interrupted.

Method used

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  • Method for realizing automatic transfer power control of digital microwave transmission system
  • Method for realizing automatic transfer power control of digital microwave transmission system

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Embodiment Construction

[0015] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0016] refer to figure 1 and figure 2 , the specific implementation process is:

[0017] In the first step, the ATPC module of station B samples the receiving level value of the receiver in real time.

[0018] In the second step, when the link is in a state of deep fading, the system is in an ATPC out-of-control state, the transmitter power of station A is set to max, and the receiving level of station B is at the low threshold of ATPC start ( figure 2 Middle ①) and below, and it changes with the fading depth.

[0019] In the third step, as the fading depth weakens, the receiving level of station B gradually rises to the low threshold of ATPC start ( figure 2 Middle ①), at this time, the transmitting power of station A is still at a high level, and the receiving level of station B increases with the decrease of fading depth...

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Abstract

The invention relates to a method for realizing the automatic transfer power control (ATPC) of a digital microwave transmission system. The method comprises the following steps that: after an ATPC function of the digital microwave transmission system is enabled, a transmitter and a receiver of the microwave transmission system report own reception levels to the opposite end, monitor a transmission level value reported by the opposite end in real time, and determine a high reception level threshold and a low reception level threshold according to user settings. By the method, the influence of radio wave fading can be effectively avoided, system interference can be reduced, and the residual code error property of the system can be improved.

Description

technical field [0001] The invention relates to a method for realizing automatic transmission power control (ATPC) of a digital microwave transmission system. Background technique [0002] Nowadays, in the wireless communication system led by mobile communication, including digital microwave communication, wireless local area network (WLAN), direct broadcast TV service (DBS), local multipoint distribution system (LMDS) and radio frequency identification system (RFID), etc., has achieved great development. Microwave communication technology is playing an increasingly important role in the entire wireless communication system. With the increasing perfection of digital microwave communication and the upgrading of microwave, the system capacity is getting bigger and bigger. Digital microwave communication is a means of communication that uses microwaves as a carrier to transmit digital signals. It has the advantages of both digital communication and microwave communication, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04H04W24/00
Inventor 凌云兰宇杜仲陈东进
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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