公开(公告)号：US20220200707A1

公开(公告)日：2022-06-23

申请号：US17644727

申请日：2021-12-16

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Kim Nielsen ,  Mads Lauridsen

IPC: H04B17/10 ,  H04B17/382

Abstract: A method comprising securing orientation of a first type of an antenna and a second type of an antenna, wherein the first type of an antenna and the second type of an antenna are comprised in a terminal device, determining if the terminal device is radio resource control connected to a cell provided by an access node comprised, at least partly, in a satellite or relayed through the satellite, and if it is, estimating a link loss based, at least partly, on downlink receive measurements obtained using the first type of an antenna, determining an uplink link budget based on the estimated link loss, determining if the uplink link budget is greater than a threshold for a transmit antenna, wherein the transmit antenna is the first type of the antenna or the second type of an antenna, and attempting a transmission to the access node using the transmit antenna if the uplink link budget is greater than the threshold for the transmission antenna.

公开(公告)号：US20210105076A1

公开(公告)日：2021-04-08

申请号：US17066225

申请日：2020-10-08

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Kim Nielsen

IPC: H04B17/12 ,  H04W56/00 ,  H04B1/58 ,  H04B7/0413

Abstract: There is provided aligning timing of Multiple Input Multiple Output, MIMO, transmissions. A method comprises measuring delays between a calibration signal fed to an antenna port via an RF frontend transmission path of a MIMO transceiver comprising a plurality of antenna ports connected to RF frontend transmission paths and the calibration signal received at one or more other antenna ports of the MIMO transceiver, wherein the calibration signal is fed to each of the antenna ports at a time for measuring at least one delay according to a measurement set. On the basis of the measured delays, one or more delay configurations for baseband signals fed to the RF frontend transmission paths for aligning timing of transmissions across the antenna ports are determined.