公开(公告)号：US20190215042A1

公开(公告)日：2019-07-11

申请号：US16358301

申请日：2019-03-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuai CHEN ,  Wei CHEN ,  Xiaolong ZHU ,  Yu WU

IPC: H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0473 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/06 ,  H04L5/0051

Abstract: A signal transmission method includes: processing, by a base station, a first baseband signal, a second baseband signal, a third baseband signal, and a fourth baseband signal by using a VAM matrix, to obtain four processed signals; performing precoding processing on the four processed signals to obtain four coded signals; and sending the four coded signals to a mobile terminal by using four radio frequency ports. The four radio frequency ports are in a one-to-one correspondence with the four coded signals. A first processed signal is the same as a third processed signal, a second processed signal is the same as a fourth processed signal. The first processed signal is obtained by performing superposition on the first baseband signal and the third baseband signal, and the second processed signal is obtained by performing superposition on the second baseband signal and the fourth baseband signal.

公开(公告)号：US20190090207A1

公开(公告)日：2019-03-21

申请号：US16197529

申请日：2018-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guojun YE ,  Jie LIN ,  Yu WU ,  Shuai CHEN

IPC: H04W52/34 ,  H04W88/08 ,  H04W72/04

Abstract: The present disclosure relates to the field of wireless technologies, and specifically, to remote radio unit channel transmit power setting. The disclosure describes example remote radio unit (RRU) channel transmit power setting methods and base stations. In one example, a first base station transmits signals to first user equipment (UE) at a first power by respectively using a first channel and a second channel of an RRU, and transmits signals to the UE at a second power by respectively using a third channel and a fourth channel of the RRU.