专利名称：Feeder link communication system in HAPS
发明人：藤井 隆史，藤井 輝也
申请号：JP2018158719
rate是什么意思申请日：20180827
一般过去时ppt公开号：JP2020036100A
汽车日常保养常识
公开日：
countermeasure
日语加油20200305
专利内容由知识产权出版社提供
alpha是什么专利附图：
摘要：Provided is a communication system capable of improving the frequency
utilization efficiency of a feeder link of a levitation type communication relay device. A communication system includes an airborne staying-type communication relay device HAPS20 that wirelessly communicates with a terminal device, and transmits and receivescastaway
different relay signals at the same frequency to and from a feeder link with the airborne staying-type communication relay device. And a plurality of gateway stations 70 for performing space division multiplex communication. Each of the plurality of gateway stations includes an antenna control unit that controls the feeder link antenna 71 so as to track the airborne staying type communication relay device. [Selection diagram] FIG.
申请人：ＨＡＰＳモバイル株式会社
地址：東京都港区東新橋一丁目９番１号
can u speak english 国籍：JP
代理人：黒田 壽，中村 弘通
spg
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