发明名称 |
RADIO BASE STATION APPARATUS AND TRANSMISSION POWER CONTROL METHOD |
摘要 |
<p>The present invention provides a radio base station apparatus and a transmission power control method that do not deteriorate the uplink reception quality of cell-edge users when uplink MU-MIMO transmission is applied. The transmission power control method of the present invention includes the steps of: in a radio base station apparatus that performs space division multiplexing between users by uplink MU-MIMO transmission: controlling transmission power according to a number of MU-MIMO multiplexed users; and transmitting transmission power information to match the number of MU-MIMO multiplexed users; and in a mobile terminal apparatus: setting transmission power using the transmission power information; and transmitting an uplink signal by the transmission power.</p> |
申请公布号 |
EP2557861(A4) |
申请公布日期 |
2015.07.22 |
申请号 |
EP20110765609 |
申请日期 |
2011.03.30 |
申请人 |
NTT DOCOMO, INC. |
发明人 |
NISHIKAWA, DAISUKE;KISHIYAMA, YOSHIHISA;KAWAMURA, TERUO |
分类号 |
H04W52/18;H04B7/04;H04B7/06;H04W16/28;H04W52/04;H04W52/08;H04W52/14;H04W52/24;H04W52/34;H04W52/42;H04W52/58 |
主分类号 |
H04W52/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|