WIRELESS BASE STATION, USER TERMINAL, AND WIRELESS

专利名称：WIRELESS BASE STATION, USER TERMINAL,

AND WIRELESS COMMUNICATION METHOD

发明人：SHEN, Jiyun,SUYAMA, Satoshi,OKUMURA,

Yukihiko

申请号：EP148514.6申请日：20141008公开号：EP3057276A1公开日：20160817

专利附图：

摘要：To actualize frequency synchronization with each of radio communicationsystems while suppressing increase in circuit scale of a user terminal in an environment in

which the user terminal concurrently communicates with a plurality of radio

communication systems with different frequencies, a radio base station of the presentinvention is a radio base station for forming a narrow-area cell to communicate with auser terminal in a radio communication system where the narrow-area cell is providedinside a wide-area cell, and has a carrier frequency synthesizer that generates a carrierfrequency of the narrow-area cell based on a wide-area radio signal transmitted from aradio base station for forming the wide-area cell, and a sampling frequency synthesizerthat generates a sampling frequency of a baseband signal of the narrow-area cell basedon the wide-area radio signal.

申请人：NTT DOCOMO, INC.

地址：11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo 100-6150 JP

国籍：JP

代理机构：Hoffmann Eitle

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