Communication equipment, baseband unit and communication method

Abstract

Embodiments of the invention provide communication equipment, a baseband unit and a communication method. The equipment comprises the baseband unit, a medium radio frequency unit and double columns of crossed polarized antennas. The baseband unit is used for determining compensation coefficients corresponding to four transmitting channels respectively, determining a feeder cable compensation phase according to a received uplink detection signal of UE (user equipment), generating four paths of baseband signals according to m paths of signals in one-to-one correspondence to m logic ports, correcting the four paths of baseband signals according to the compensation coefficients corresponding to the four transmitting channels respectively and the feeder cable compensation phase, and sending the four paths of corrected baseband signals to the medium radio frequency unit. The medium radio frequency unit is used for sending the four paths of corrected baseband signals to the UE through the four transmitting channels and the double columns of crossed polarized antennas. In the embodiments of the invention, the feeder cable compensation phase is determined according to the uplink detection signal of the UE, and the four paths of baseband signals are corrected according to the compensation coefficients of the four transmitting channels and the feeder cable compensation phase, so that the phase of each path of transmitting signals can be accurately controlled.

Description

technical field [0001] The present invention relates to the field of communication, and in particular, to a communication device, a baseband unit and a communication method. Background technique [0002] In a long term evolution (Long Term Evolution, LTE) system, a base station with dual columns of cross-polarized antennas generally includes a baseband unit and an intermediate radio frequency unit. The middle radio frequency unit can be connected to the dual-column cross-polarized antenna through a feeder cable (Cable). The baseband unit can generate a baseband signal, and then send it to the mid-radio frequency unit, and the mid-radio frequency unit can convert the baseband signal into a radio frequency signal, and then send it to a user equipment (User Equipment, UE) through a dual column cross-polarized antenna. However, since there are differences between the transmission channels inside the middle radio frequency unit and the feeder cables connected between the middle ...

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Problems solved by technology

[0003] Embodiments of the present invention provide a communication device, a baseband unit, and a communication method to solve the problem that the phase of each transmission signal cannot be accurately controlled

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