Device and method for processing signal

Abstract

The invention discloses a device and a method for processing a signal. The device comprises more than two antenna vibrators and transceiver channels (TRX-L) with the same number as that of the antenna vibrators. Each transceiver channel TRX-L is connected with each antenna vibrator one to one; and each transceiver channel TRX-L processes a baseband signal sent by a baseband unit (BBU), and then transmits the processed signal to the antenna vibrator connected with the transceiver channel TRX-L. The method comprises the following steps of: dividing the signal sent to one antenna into a predetermined number of paths of signals, wherein the predetermined number is the same as the number of the antenna vibrators included in the antenna; processing each path of the signal and transmitting the processed signal to the corresponding antenna vibrator, wherein one path of the signal is transmitted to one antenna vibrator, and one antenna vibrator receives one path of the signal. By applying the device and the method, the signal loss can be reduced.

Description

technical field [0001] The present invention relates to the technical field of signal processing, in particular to a signal processing device and a signal processing method. Background technique [0002] figure 1 It is a schematic diagram of the composition of distributed base stations commonly used in the third generation mobile communication (3G) system. [0003] Such as figure 1 As shown, the base station consists of a baseband signal processing unit (BBU), an intermediate frequency and radio frequency signal processing unit (RRU) and an antenna. Wherein, the BBU and the RRU are connected through an optical fiber, and the RRU and the antenna are connected through a cable. In a multi-antenna system, each antenna is connected to a transceiver channel (TRX) in the RRU through a cable, that is to say, each antenna channel corresponds to a TRX. For example, in a TD-SCDMA system and a TD-LTE system using 8 antennas, 8 TRXs in the RRU are respectively connected to 8 antennas...

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Problems solved by technology

[0012] However, since this solution only integrates the original RRU and the antenna in the physical structure, there is still a coupling network inside the antenna, and the signal loss caused by the coupling network cannot be eliminated.

Moreover, multi-channel blind-mate connectors are required in a multi-antenna system, and the consistency, strength and reliability of multi-channel blind-mate connectors are difficult to guarantee, and there are certain risks in practical applications.

On the other hand, each antenna element is arranged vertically, and each antenna distributes the signal to be transmitted to each antenna element through a coupling network. The coupling network only plays the role of power distribution and cannot perform beamforming in the vertical direction. Different systems When the antenna is shared, the antenna inclination angle of each system cannot be adjusted independently

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