Transmission apparatus, signal transmitting control method and control apparatus thereof in microwave system

Abstract

The invention discloses a launching device, a transmitting power control method and a control device thereof, wherein, the launching device comprises a transmitting power control module for obtaining a modulating mode switching event of a microwave system and transmitting power for regulating a radio frequency transmitting module according to the switching event and a preset power control mode; microwave signals are transmitted by the radio frequency transmitting module with the adoption of the transmitting power regulated by the transmitting power control module. Through an arrangement of a power control module, gains of an AM microwave system is improved, and business damage brought about by starting ATPC property in the AM microwave system can also be avoided. Correspondingly, the invention also discloses the transmitting power control method in a microwave system, which can realize switching to a low modulating mode without damaging the business when signals are deteriorated, and can improve the gains of the system when quality of the signals turns better.

Description

Technical field [0001] The present invention relates to the field of electronic communication, and in particular to a transmitting device, a transmission power control method and a control device thereof in a microwave system. Background technique [0002] With the evolution of mobile network technology and the transformation of business models to integrated multimedia applications of voice, video and data, the traditional Plesiochronous Digital Hierarchy (PDH) / Synchronous Digital Hierarchy (SDH) based on fixed transmission bandwidth ) Microwave can no longer meet the mobile's demand for backhaul network bandwidth, so a new generation of microwave equipment supporting adaptive modulation (AM) function has been introduced. Microwave equipment that supports AM can dynamically adjust the air interface transmission bandwidth. When the air interface link quality is good (such as when it is sunny), the equipment can use high modulation modes, such as 128 Quadrature Amplitude Modulation...

AI Technical Summary

Problems solved by technology

[0004] If the AM microwave system adopts the traditional microwave radio frequency transmission power fixed method, the transmission power needs to fall back to the transmission power value of the highest modulation mode. When the system works In a lower modulation mode, the maximum system gain cannot be obtained, which reduces the ability of the system to resist fading

[0005] At the same time, the AM microwave system introduces Automatic Transmit Power Control (ATPC) technology. ATPC technology sets the upper threshold and lower threshold of the receiving power of the microwave system. When the receiving power is lower than the lower threshold, the sending side is notified through the protocol Reduce the sending power. When the receiving power is higher than the upper threshold, the sending side is notified through the protocol to increase the sending power. Since the modulation mode of the sending side of the AM microwave system will change at any time, if the sending side is simply controlled by the receiving side. , may cause the transmit power of the sender to exceed the maximum transmit power allowed by the current modulation mode, thus causing service damage

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