Time division duplexing radio remote unit equipment and multichannel receive link multiplexing method

Abstract

The invention discloses time division duplexing radio remote unit equipment and a multichannel receive link multiplexing method. The time division duplexing radio remote unit equipment comprises a radio frequency link module, first analog intermediate frequency link modules, a second analog intermediate frequency link module, an analog-digital converter and a field programmable gate array (FPGA), wherein different local oscillation signals are adopted in each first analog intermediate frequency link module, the analog radio frequency signals output by each channel radio frequency link module are mixed and transformed into analog intermediate frequency signals of different frequency bands, the analog intermediate frequency signals of different frequency bands are grouped and combined in the second analog intermediate frequency link module, and then the combined analog intermediate frequency signals are transmitted to the analog-digital converter and then to the FPGA for performing signal separation and digital intermediate frequency processing. The technical scheme of the invention can reduce the quantity of devices after signal combination, reduce the volume, weight and power consumption of the equipment, and increase the reliability and producibility.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a time-division duplex remote radio unit device and a method for multiplexing multi-channel receiving links. Background technique [0002] Time division duplex remote radio unit (TD RRU) is widely used in the field of mobile communication. The multi-channel TD RRU receiver in the prior art includes several completely independent receiving channels, and each channel has a completely independent analog receiving channel. Link, through their respective analog-to-digital converters (ADC) for analog-to-digital conversion and digital IF processing. [0003] figure 1 It is a structural schematic diagram of a multi-channel TD RRU receiving link in the prior art. Such as figure 1 As shown (taking 8-channel TD RRU as an example), the receiver includes eight channels, where the receiving channels corresponding to antenna 0-antenna 7 are channel 0-channel 7, and each channel includes a c...

AI Technical Summary

Problems solved by technology

[0004] In this technology, the RF link modules, analog IF link modules, and analog-to-digital converters of each receiving channel are independent of each other, resulting in large equipment size and power consumption, which increases the complexity of the system and reduces the system cost. reliability

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