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公开(公告)号：US20210021033A1
公开(公告)日：2021-01-21
申请号：US17042317
申请日：2019-03-29
Applicant: Agency for Science, Technology and Research
Inventor： Xinyi Tang , Francois Po Shin Chin , Xiaoming Peng , Xianming Qing
Abstract: There is provided a beam steerable antenna system including: an antenna array including a plurality of first radiating elements; a first phase control section coupled to the plurality of first radiating elements, the first phase control section being configured to control a phase of signals from the plurality of first radiating elements to output first phase controlled signals; a first combiner coupled to the first phase control section, the first combiner being configured to combine the first phase controlled signals to output a first combined signal; a first frequency converter coupled to the first combiner, the first frequency converter being configured to downconvert a frequency of the first combined signal to output a first downconverted signal; and a second phase control section coupled to the first frequency converter, the second phase control section being configured to control a phase of the first downconverted signal to output a second phase controlled signal. There is also provided a method of manufacturing the beam steerable antenna system, and a method of beam steering an antenna array.
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公开(公告)号：US11469501B2
公开(公告)日：2022-10-11
申请号：US17042317
申请日：2019-03-29
Applicant: Agency for Science, Technology and Research
Inventor： Xinyi Tang , Francois Po Shin Chin , Xiaoming Peng , Xianming Qing
Abstract: There is provided a beam steerable antenna system including: an antenna array including a plurality of first radiating elements; a first phase control section coupled to the plurality of first radiating elements, the first phase control section being configured to control a phase of signals from the plurality of first radiating elements to output first phase controlled signals; a first combiner coupled to the first phase control section, the first combiner being configured to combine the first phase controlled signals to output a first combined signal; a first frequency converter coupled to the first combiner, the first frequency converter being configured to downconvert a frequency of the first combined signal to output a first downconverted signal; and a second phase control section coupled to the first frequency converter, the second phase control section being configured to control a phase of the first downconverted signal to output a second phase controlled signal. There is also provided a method of manufacturing the beam steerable antenna system, and a method of beam steering an antenna array.
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公开(公告)号：US09854538B2
公开(公告)日：2017-12-26
申请号：US14908905
申请日：2014-07-29
Applicant: Agency for Science, Technology and Research
Inventor： Yoshihisa Kishiyama , Kazuaki Takeda , Jian Zhao , Zhongding Lei , Francois Po Shin Chin
CPC classification number: H04W52/243 , H04W16/26 , H04W52/242 , H04W52/42 , H04W88/08 , H04W88/085
Abstract: The objective of the invention is to suppress, in a case of applying the RRH system in an environment having a plurality of cells (multi-cellular environment), the reduction of the throughput of the whole system. A base station, in the RRH system in which a plurality of antenna ports are dispersively placed in each of a plurality of cells, comprises: a selection unit that selects antenna ports, to which user terminals are to connect, from among the antenna ports of the cells in which the user terminals are existent; and a power setting unit that controls the transmission powers of the antenna ports. The selection unit and power setting unit set predetermined conditions for the target SINRs(t) of the user terminals and the transmission powers of the antenna ports, and select the antenna ports for the user terminals and control the transmission powers of the antenna ports such that the smallest one of the values of the SINRs of the user terminals of the plurality of cells is maximized.
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