公开(公告)号：US20210143871A1

公开(公告)日：2021-05-13

申请号：US17259175

申请日：2019-07-08

Applicant: Sony Corporation

Inventor： Zuleita HO ,  Erik BENGTSSON ,  Kun ZHAO ,  Fredrik RUSEK

IPC: H04B7/0417 ,  H04W72/04 ,  H04L5/00

Abstract: Methods (10; 30) and devices (20; 40) for controlling polarization division multiplex in a wireless communication network are provided. A method (10) associated with an access node of the wireless communication network comprises: the access node (20) controlling (11A) a first multiple input multiple output, MIMO, transmission between the access node (20) and a first wireless terminal (40, 40A) to use a first set of time-frequency resources, to use a first MEMO spatial channel, and to use a first receive polarization state of the first wireless terminal (40, 40A); and controlling (11B) a second MIMO transmission between the access node (20) and a second wireless terminal (40, 40B) to use a second set of time-frequency resources which at least partially overlaps the first set of time-frequency resources, to use a second MIMO spatial channel which at least partially overlaps the first MIMO spatial channel, and to use a second receive polarization state of the second wireless terminal (40, 40B) which differs from the first receive polarization state.

公开(公告)号：US20210336667A1

公开(公告)日：2021-10-28

申请号：US17278314

申请日：2019-10-10

Applicant: Sony Corporation

Inventor： Erik BENGTSSON ,  Thomas BOLIN ,  Olof ZANDER ,  Fredrik RUSEK ,  Kun ZHAO ,  Zuleita HO

IPC: H04B7/0456 ,  H04B7/06

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：US20210184751A1

公开(公告)日：2021-06-17

申请号：US17272297

申请日：2019-07-31

Applicant: SONY CORPORATION

Inventor： Kun ZHAO ,  Olof ZANDER ,  Fredrik RUSEK ,  Erik BENGTSSON ,  Zuleita HO

IPC: H04B7/06 ,  H04B17/309 ,  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：US20210143892A1

公开(公告)日：2021-05-13

申请号：US17259000

申请日：2019-07-11

Applicant: Sony Corporation

Inventor： Zuleita HO ,  Kun ZHAO ,  Anders BERGGREN ,  Erik BENGTSSON ,  Olof ZANDER ,  Thomas BOLIN ,  Fredrik RUSEK

IPC: H04B7/10 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06

Abstract: Methods (10, 30) and devices (20, 40) for performing radio transmissions in a wireless communication network are provided. A method (30) associated with a wireless terminal (40, 40A) which performs radio transmissions in the wireless communication network comprises: receiving (31) a multiple input multiple output, MIMO, transmission from an access node (20) of the wireless communication network; estimating (32) a spatial orientation (θ, (ϕ)) of an antenna array (42) of the wireless terminal (40, 40A) based on measurements performed by at least one sensor (43) of the wireless terminal (40, 40A); and based on the estimated spatial orientation (θ, (ϕ)), filtering out (33) a polarization crosstalk from the received MIMO transmission, the polarization crosstalk being associated with the spatial orientation (θ, (ϕ)) of the antenna array (42) of the wireless terminal (40, 40A).

公开(公告)号：US20210409090A1

公开(公告)日：2021-12-30

申请号：US17279234

申请日：2019-09-27

Applicant: Sony Corporation

Inventor： Fredrik RUSEK ,  Olof ZANDER ,  Zuleita HO ,  Erik BENGTSSON ,  Kun ZHAO ,  Torgny PALENIUS

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/024 ,  H04W36/06 ,  H04W72/04

Abstract: Systems and methods for managing interference in a communication network include transmitting a first downlink signal (50) from a first transmit/receive point (TRP) (46) to an electronic device (14) using a beam (62). The electronic device (14) can also receive a second downlink signal (52) from a second TRP (48), where a portion (54) of the first downlink signal (50) from the first TRP (46) interferes with the second downlink signal (52). The first TRP (46) then receives a series of uplink pilot signals (66, 68) from the electronic device (14). Using the received uplink pilot signals (66, 68), the first TRP (46) can then estimate the angle of departure (AoD) for the intended signal (first downlink signal (50)), and the AoD for the interference signal (54). The first TRP (46) can then reconfigure the beam (62) used to transmit the first downlink signal (50) based on the estimated AoDs for the intended signal and interference signal to manage the interference effect that the first leakage signal (54) has on the second downlink signal (52).

公开(公告)号：US20210152219A1

公开(公告)日：2021-05-20

申请号：US17045077

申请日：2019-03-27

Applicant: Sony Corporation

Inventor： Fredrik RUSEK ,  Zuleita HO ,  Olof ZANDER ,  Erik BENGTSSON

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

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：US20210076370A1

公开(公告)日：2021-03-11

申请号：US17053307

申请日：2019-04-29

Applicant: SONY CORPORATION

Inventor： Erik BENGTSSON ,  Fredrik RUSEK ,  Zuleita HO

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

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).

公开(公告)号：US20210058117A1

公开(公告)日：2021-02-25

申请号：US17090692

申请日：2020-11-05

Applicant: Sony Corporation

Inventor： Zuleita HO ,  Fredrik RUSEK ,  Olof ZANDER

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/08

Abstract: A method of operating a terminal having multiple antenna arrays includes, using the multiple antenna arrays: respectively monitoring and reporting on at least one downlink beam-sweeped transmission of pilot signals. The method also includes, based on a comparison of values indicative of a path loss of the pilot signals monitored using the multiple antenna arrays: selectively triggering adjustment of one or more values of at least one control parameter of said monitoring and reporting.