The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Feb. 14, 2011
Yuanrong Zhu, Shenzhen, CN;
Jianjun Chen, Shenzhen, CN;
Zhubiao He, Shenzhen, CN;
Jianfeng Wu, Shenzhen, CN;
Ming Xu, Shenzhen, CN;
Yi Zhang, Shenzhen, CN;
Yuntao Zhu, Shenzhen, CN;
Pinghua He, Shenzhen, CN;
Yuanrong Zhu, Shenzhen, CN;
Jianjun Chen, Shenzhen, CN;
Zhubiao He, Shenzhen, CN;
Jianfeng Wu, Shenzhen, CN;
Ming Xu, Shenzhen, CN;
Yi Zhang, Shenzhen, CN;
Yuntao Zhu, Shenzhen, CN;
Pinghua He, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
An active antenna, a base station, a method for refreshing the amplitude and phase, and a signal processing method are disclosed to simplify the structure of a phase shifter and guarantee the reliability of the phase shifter. The active antenna or the base station includes an antenna dipole array, a transceiver array, a digital processing unit (DPU), and a transceiving calibration unit. During signal reception, the transceiver demodulates a radio frequency (RF) signal of the antenna dipole into an IQ analog signal, and outputs the IQ analog signal to the DPU; the DPU converts the demodulated IQ analog signal into an IQ digital signal, and performs digital beam forming (DBF) on the IQ digital signal according to the transceiving calibration unit; during signal transmission, the transceiver modulates the IQ analog signal of the DPU into an RF signal, and outputs the RF signal to the antenna dipole; the DPU converts a signal of a base band unit (BBU) into an IQ digital signal in serial/parallel (S/P) mode, and performs DBF on the IQ digital signal according to the transceiving calibration unit.