公开(公告)号：US10652878B2

公开(公告)日：2020-05-12

申请号：US16152175

申请日：2018-10-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mario Costa ,  Petteri Kela ,  Xavier Gelabert

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0452 ,  H04L25/03 ,  H04L25/02 ,  H04B7/0456

Abstract: An access node in a wireless communication system includes a transceiver configured to receive one or more uplink pilots associated with a user node via a radio link, and a processor configured to determine, based on the one or more uplink pilots, a location of the user node and whether the radio link is a line of sight radio link or a non-line of sight radio link. When the radio link is a line of sight radio link, the processor determines a position based precoding vector based on the location of the user node, and generates a precoded downlink control signal based on the determined position based precoding vector. The transceiver transmits the precoded downlink control signal to the user node.

公开(公告)号：US20170367111A1

公开(公告)日：2017-12-21

申请号：US15693526

申请日：2017-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xavier Gelabert ,  Henrik Lundqvist ,  Mario Costa ,  Petteri Kela

IPC: H04W72/12 ,  H04W24/02 ,  H04W72/04

CPC classification number: H04W72/1268 ,  H04W24/02 ,  H04W72/042 ,  H04W72/048 ,  H04W74/0833

Abstract: Implementations described herein relate generally to a user device, to an access node, and to methods for a user device and for an access node. The user device includes a receiver configured to receive at least one downlink signal from an access node. The user device further includes a processor configured to measure the at least one downlink signal at two time instants, to determine if a difference of the measured at least one downlink signal at the two time instants exceeds a threshold, and to generate, when the difference exceeds the threshold, at least one uplink transmission. The user device further includes a transmitter configured to transmit the at least one uplink transmission over an uplink random access channel.