公开(公告)号：US10531465B2

公开(公告)日：2020-01-07

申请号：US15706154

申请日：2017-09-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mario Costa ,  Philip Ginzboorg ,  Gunnar Hedby

IPC: H04W72/04 ,  H04W88/08

Abstract: The present invention relates to a communication device and an access node. The communication device comprises: a processor, and directional antennas; wherein the directional antennas are configured to receive a first signal S1 indicating a calibration request (CR) for an access node; wherein the processor is configured to generate directional beacon signals SDB in response to the calibration request (CR); wherein the directional antennas are further configured to transmit the directional beacon signals SDB towards the access node (300). The access node (300) comprises: a processor, and an antenna array; wherein the antenna array is configured to receive directional beacon signals SDB from at least one communication device; wherein the processor is configured to calibrate the antenna array based on the directional beacon signals SDB.