Beam management for a radio transceiver device

US11990973B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Anders LANDSTRÖM · Boden, SE
• Arne Simonsson · Luleå, SE
• Peter Ökvist · Luleå, SE
• Magnus Thurfjell · Luleå, SE
• Kjell Larsson · Luleå, SE
• Medhat Mohamad · Luleå, SE
• Olle Rosin · Säter, SE

Key dates

• Filing date: Apr 20, 2020
• Grant date: May 21, 2024
• Expiry date: Apr 20, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B7/0408
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises obtaining an angle spread value for signal paths towards a second radio transceiver device. The method comprises performing a beam management procedure for selecting which directional beam to use for communication with the second radio transceiver device by transmitting or receiving reference signals in a candidate set of directional beams. Which directional beams to include in the candidate set of directional beams is dependent on the angle spread value by the angle spread value determining sparsity of the directional beams in the candidate set of directional beams.