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1. (WO2018127340) COMMUNICATIONS DEVICES, INFRASTRUCTURE EQUIPMENT AND METHODS

Pub. No.:    WO/2018/127340    International Application No.:    PCT/EP2017/081502
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Wed Dec 06 00:59:59 CET 2017
IPC: H04B 7/06
H04W 74/08
H04B 7/0404
Applicants: SONY CORPORATION
SONY EUROPE LIMITED
Inventors: WONG, Shin Horng
BEALE, Martin Warwick
Title: COMMUNICATIONS DEVICES, INFRASTRUCTURE EQUIPMENT AND METHODS
Abstract:
A communications device comprises transmitter circuitry configured to transmit signals to one or more infrastructure equipment of the wireless communications network via a wireless access interface provided by the one or more infrastructure equipment, receiver circuitry configured to receive signals from the one or more infrastructure equipment via the wireless access interface, and controller circuitry configured to control the transmitter circuitry and the receiver circuitry to transmit or to receive the signals representing data. The controller circuitry is configured in combination with the receiver circuitry and the transmitter circuitry to form one or more beams which can be used by the transmitter circuity to transmit data to one or more of the infrastructure equipment, each of the beams having a different angular bias with respect to a location of the communications device, to transmit the signals, using a first of the beams, to one of the infrastructure equipment, to change, dependent on one or more sets of predetermined conditions being met, a beam width of the first of the beams, and to re-transmit, using the first of the beams having the changed beam width, the signals to the one of the infrastructure equipment. Embodiments of the present technique can provide arrangements in which a communications device increases the area of coverage of beams used to transmit data to a wireless communications network, known as beam ramping, in order to increase the likelihood of the data being successfully received. Such embodiments describe various ways in which beam ramping can be exploited by communications devices, in order to save power at such devices whilst still able to successfully transmit data to infrastructure equipment of a wireless communications network over long distances.