公开(公告)号：US11646770B2

公开(公告)日：2023-05-09

申请号：US17045077

申请日：2019-03-27

Applicant: Sony Group Corporation

Inventor： Fredrik Rusek ,  Zuleita Ho ,  Olof Zander ,  Erik Bengtsson

IPC: H04B7/0413 ,  H04B7/10 ,  H04W72/04 ,  H04B7/0408 ,  H04W72/044

CPC classification number: H04B7/0413 ,  H04B7/0408 ,  H04B7/10 ,  H04W72/044

Abstract: Systems and methods for selecting a communication mode in a wireless network (10) include a communication mode selection procedure that may be carried out by the respective devices in an automated manner to identify a desired mode for communication between an electronic device (14) and a network node (12). Determining the desired mode for communication is based on the electronic device's (14) capabilities and/or the channel conditions of the communication channel between the electronic device (14) and the network node (12). The procedures described herein may allow for the high data rates associated with polarization based MIMO (P-MIMO) in capably equipped electronic devices (14) while preventing communication interruptions due to unfavorable channel conditions.

公开(公告)号：US11923933B2

公开(公告)日：2024-03-05

申请号：US17965408

申请日：2022-10-13

Applicant: Sony Group Corporation

Inventor： Erik Bengtsson ,  Thomas Bolin ,  Olof Zander ,  Fredrik Rusek ,  Kun Zhao ,  Zuleita Ho

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/0469 ,  H04B7/0691 ,  H04B7/0695

Abstract: A method includes receiving (402) a plurality of reference signals (301-303) at an antenna port of a communication device (101). Each reference signal (301-303) is sent using a corresponding precoder. The precoder is selected from a first set of precoders. The method further includes determining (403) a channel estimate based on the received plurality of reference signals (301-303), and selecting (404) a precoder from a second set of precoders based on the determined channel estimate. The second set of precoders comprises at least one precoder in addition to the precoders of the first set of precoders. The method includes sending (405) an indication (304) relating to the selected precoder.

公开(公告)号：US12237901B2

公开(公告)日：2025-02-25

申请号：US17272297

申请日：2019-07-31

Applicant: Sony Group Corporation

Inventor： Kun Zhao ,  Olof Zander ,  Fredrik Rusek ,  Erik Bengtsson ,  Zuleita Ho

IPC: H04B17/309 ,  H04B7/06 ,  H04W24/10

Abstract: A communication device (30) and a method for a communication device (30), for providing a beam report (401) to an access node (20) of a wireless network, wherein the communication device is capable of communicating via at least two different device beams (34, 36). The method comprises receiving (912), from the access node (20), at least a first access node beam (50) having a first access node identity, and a second access node beam (51) having a second access node beam identity; determining (914) link quality metrics for each received access node beam; transmitting (916) the beam report (401), comprising said access node beam identities and said link quality metrics, to the access node; wherein the beam report includes information indicating whether said link quality metrics for the first access node beam (50) and a second access node beam (51) are associated with different device beams.

公开(公告)号：US11129167B2

公开(公告)日：2021-09-21

申请号：US17053307

申请日：2019-04-29

Applicant: Sony Group Corporation

Inventor： Erik Bengtsson ,  Fredrik Rusek ,  Zuleita Ho

IPC: H04W72/04 ,  H04B17/12 ,  H04B7/06 ,  H04W72/08

Abstract: The present application relates to methods for calibrating an array antenna (301) of a terminal (300) in a MIMO communication system (100). The method comprises: communicating, to a base station (200) of the MIMO communication system (100), a calibration capability indication from the terminal (300) indicative of a capability of the terminal (300) of calibrating receivers and transmitters for beam correspondence; communicating, from the base station (200) of the MIMO communication system (100) to the terminal (300), a control message indicative of radio resources; using the radio resources: calibrating receivers and transmitters of the terminal (300) for beam correspondence by performing over-the-air measurements of mutual coupling between antennas (310-312) of the array antenna (301).