公开(公告)号：US20180013515A1

公开(公告)日：2018-01-11

申请号：US15712581

申请日：2017-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huiming WANG ,  Feng LIU ,  Rong WU

IPC: H04K3/00 ,  H04L25/02 ,  H04W12/02 ,  H04B7/06 ,  H04L25/03 ,  H04L29/06

CPC classification number: H04K3/825 ,  H04B7/0617 ,  H04K3/28 ,  H04L9/001 ,  H04L25/0202 ,  H04L25/03343 ,  H04L63/1475 ,  H04W12/02

Abstract: The present disclosure discloses a signal sending method and device. The method includes: receiving, by a base station, an uplink pilot signal sent by authorized user equipment, and determining a direction vector parameter and a first channel fading parameter of a channel calculating, according to the direction vector parameter and the first channel fading parameter, a first signal beamformer parameter, determining a transmission area of an artificial noise signal according to the direction vector parameter, and calculating a second signal beamformer parameter; and processing a to-be-transmitted signal by using the first signal beamformer parameter and the second signal beamformer parameter, and transmitting the processed signal. In this way, in a non-target direction, energy leakage of the secrecy signal to the authorized user equipment is relatively small, and transmitted artificial noise signals are concentrated in an area with a relatively high secrecy signal leakage risk.