US Patent 10111108 Radio base station, mobile station and radio communication method
Patent 10111108 was granted and assigned to NTT DOCOMO, INC. on October, 2018 by the United States Patent and Trademark Office.
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To improve system performance for mobile communications (group mobility) in a plurality of terminals existing inside the same moving object, a radio base station, which forms a cell on a moving path of a moving object to communicate with a mobile station provided in the moving object using beam forming, is provided with a transmission section that transmits a plurality of acquisition signals applied with different beam forming weights respectively to at least an edge region of the cell formed on the moving path of the moving object, and a control section that controls a beam forming weight to apply to a data signal transmitted to the mobile station, based on information notified from the mobile station receiving an acquisition signal.
US Patent 10111108 Radio base station, mobile station and radio communication method
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