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Communication system, signal compensation method and related equipment

A communication system and system information technology, applied in transmission systems, electromagnetic wave transmission systems, optical fiber transmission, etc., can solve problems such as complex nonlinear characteristics

Pending Publication Date: 2022-06-24
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] In this communication system, the local unit needs to receive the feedback signal through the feedback link, and the intermediate radio frequency on the feedback link needs to demodulate the feedback signal, and then according to the demodulated feedback signal and the original signal of the local unit, the Determine the nonlinear characteristics of the communication system, and the way to determine the nonlinear characteristics is more complicated

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  • Communication system, signal compensation method and related equipment
  • Communication system, signal compensation method and related equipment
  • Communication system, signal compensation method and related equipment

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Embodiment Construction

[0082] The embodiments of the present application provide a communication system, a signal compensation method, and related equipment, which do not need to use a complex feedback link, thereby reducing the complexity of the local unit determining the nonlinear characteristics of the communication system.

[0083] The local unit and the remote unit can transmit signals through wired communication or wireless communication. The signal will be affected by the device during the transmission process, causing the phase or amplitude of the signal to change, or out-of-band leakage occurs. phenomenon, that is, the communication system will produce nonlinear characteristics. Therefore, in order to improve the accuracy of signal transmission, it is necessary to compensate for nonlinear characteristics.

[0084] Because optical fiber communication has many advantages such as light weight, large bandwidth, low loss and good confidentiality, it has been widely used in wired communication. ...

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Abstract

The embodiment of the invention discloses a communication system, a signal compensation method and related equipment, which are used for simplifying the process of determining nonlinear characteristics of the communication system. The communication system provided by the embodiment of the invention comprises a local unit and a remote unit, and a signal processing module in the local unit is used for acquiring system information, determining nonlinear characteristics of the communication system based on the system information, and then compensating the nonlinear characteristics according to a compensation algorithm function. Wherein the system information represents physical parameters of the communication system, and the physical parameters comprise at least one of a first system parameter and a second system parameter.

Description

technical field [0001] The embodiments of the present application relate to the field of communications, and in particular, to a communications system, a signal compensation method, and related devices. Background technique [0002] In a communication system, signal transmission can be performed between the local unit and the remote unit. Signals will be affected by electronic components in the process of transmission, which makes the communication system produce nonlinear characteristics, resulting in changes in the phase or amplitude of the signal, and the obtained output results are not ideal. Therefore, it is necessary to compensate the nonlinear features to reduce the adverse effects caused by the nonlinear features. [0003] In a communication system, the remote unit may not have a digital signal processor (digital signal processor, DSP), and in this case, the local unit is required to pre-compensate for the signal. The local unit receives the feedback signal sent by...

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Application Information

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IPC IPC(8): H04B10/2575H04B1/12
CPCH04B10/25752H04B1/12
Inventor 李旭吕毅博张伟伟王天祥
Owner HUAWEI TECH CO LTD
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