Business sending and receiving methods, terminals and system structure in microwave communication

Abstract

The embodiment of the invention discloses business sending and receiving business, terminals and a system structure in microwave communication, which relate to the technical field of communication and are invented to realize the mutual cooperation of ACM and HSM functions in a microwave communication system, and effectively improve the transmission efficiency and the transmission reliability of the system. The business sending method comprises that the sending end of a main link receives a self-adaptive encoding modulation ACM switching instruction feedbacked by the receiving end of the main link, and the sending end of a standby link receives the ACM switching instruction feedbacked by the receiving end of the standby link; the sending end of the main link carries out ACM switching to the business sent by the main link according to the received ACM switching instruction, and sends the business; and the sending end of the standby link carries out ACM switching to the business sent by the standby link according to the received ACM switching instruction, and sends the business. The embodiment of the invention also discloses the business receiving method, the sending terminal, the receiving terminal and the system structure. The invention can be used in microwave communication technology.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for sending and receiving services in microwave communication, a terminal and a system structure. Background technique [0002] Adaptive Code and Modulation (ACM) technology is a transmission technology with channel adaptive characteristics. It is based on channel estimation and estimates the availability of the air interface link in real time through the detection mechanism at the receiving end, automatically Generate coding mode and modulation mode switching instructions, and then feed back the switching instructions to the sending end through the feedback channel, and the sending end automatically changes the modulation mode and coding method of the service according to the switching instructions, thereby achieving a compromise between system capacity and system anti-interference capability, making The overall transmission performance of the system is optimized...

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the cooperative operation of the above-mentioned ACM and HSM, the inventor found that at least the following problems exist in the prior art: if the main link continues to deteriorate, the signal quality of the backup link is better, and the main link ACM continues to switch down , the standby link can only be switched down following the active link, and the capacity of the air interface is reduced

In this way, the transmission efficiency of the system is low

Moreover, if the active link continues to be optimized and the signal quality of the standby link is poor, the modulation mode of the active and standby links continues to be switched up, and the standby link may be interrupted. Bit errors occur and the reliability is poor

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