Method, device and equipment for cancelling network cable return crosstalk and medium

Abstract

The invention provides a method, a device, equipment and a medium for cancelling network cable backhaul crosstalk, which are used for supporting a room division remote system with higher interface backhaul rate and farther coverage distance under the condition of not rearranging wiring, and meeting the requirements of 4G multi-band coverage, carrier aggregation and future 5G signal coverage. The method for cancelling network cable backhaul crosstalk comprises the following steps: obtaining a pilot frequency synchronization symbol, the pilot frequency synchronization symbol being associated with a reference pilot frequency; transmitting the pilot frequency synchronization symbol from a pilot frequency transmitting end to a pilot frequency receiving end based on a transmission channel; acquiring a receiving pilot frequency of a pilot frequency receiving end; and performing interference compensation on the transmission channel based on the receiving pilot frequency and the reference pilotfrequency.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a method, device, equipment and medium for canceling network cable return crosstalk. Background technique [0002] In the mobile Internet era, mobile data services continue to grow rapidly, and more than 70% of data traffic occurs indoors. However, due to the dense and fully enclosed modern buildings, the signal attenuation of outdoor macro base stations is serious, resulting in generally poor indoor coverage. Therefore, operators have a strong demand for indoor distributed base station systems that can effectively improve the quality of indoor signal coverage. [0003] In order to improve the planning flexibility of the indoor distribution system from coverage to capacity, multi-network coordination and multi-mode evolution capabilities, and realize network management visualization, the current mainstream indoor distribution systems use a baseband unit (Baseban...

AI Technical Summary

Problems solved by technology

However, the FEXT signal from the interfering line pair is the same frequency as the normal received signal of the interfered line pair, and FEXT cannot be eliminated by the filter

[0007] Since the crosstalk between network cables cannot be solved under the existing PAM baseband modulation framework, to achieve higher interface rate backhaul requirements, such as supporting 4G multi-band coverage, carrier aggregation, and future 5G signal coverage, it is necessary to re-lay higher-level network cables. Or replace the network cable with optical fiber

However, the difficulty of wiring in the complex environment of the indoor distribution system and the reality that high-grade hard network cables may not be laid in some special scenarios will bring high cost input

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