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：US20210297116A1

公开(公告)日：2021-09-23

申请号：US17263357

申请日：2019-07-30

Applicant: Sony Corporation

Inventor： Fredrik RUSEK ,  Erik BENGTSSON ,  Olof ZANDER

IPC: H04B7/0404 ,  H04B7/024 ,  H04B7/06

Abstract: A method of configuring a multichannel uplink transmission (199) comprising multiple channels (151, 152, 159, 451, 452) between a wireless communication device (102) and multiple receive panels (1013-1, 1013-2) of at least one network node (101) is provided. The multiple receive panels (1013-1, 1013-2) and the at least one network node (101) are connected via backhaul links (1018-1, 1018-2). The method is carried out by the wireless communication device (102). The method comprises receiving, from the at least one network node (101), a downlink message encoding control data (4001) for the multichannel uplink transmission (199), the control data (4001) being associated with the backhaul links. The method further comprises configuring the multichannel uplink transmission (199) based on the control data (4001).

公开(公告)号：US20210289487A1

公开(公告)日：2021-09-16

申请号：US17262244

申请日：2019-06-13

Applicant: Sony Corporation

Inventor： Olof ZANDER ,  Fredrik RUSEK ,  Erik BENGTSSON

IPC: H04W72/04 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10

Abstract: A method for operating an access node (20) for transmission of radio signals in a plurality of beams (50-55) of abeam sweep (310), comprising: —transmitting (605) a first radio signal (301) using a first polarization in a first beam (54) having a first beam direction, and —transmitting (605, 607) a second radio signal (302) using a second polarization, which is different from the first polarization, in a second beam (55) in said first beam direction, wherein the transmission of the first radio signal is linked to the transmission of the second radio signal in accordance with a predetermined rule. By means of such a link, a communication device (30) may determine, based on the predetermined rule, that the first (54) and second (55) beams have a common directionality, but are configured for transmission with different, preferably orthogonal, polarization.

公开(公告)号：US20210273701A1

公开(公告)日：2021-09-02

申请号：US17259183

申请日：2019-07-08

Applicant: Sony Corporation

Inventor： Fredrik RUSEK

IPC: H04B7/06 ,  H04L5/00

Abstract: A method of operating a wireless communication device (101, 102) includes participating in beam-swept transmissions (311-313) of at least one symbol (361-363) on a wireless link (111) between the wireless communication device (101, 102) and a further wireless communication device (101, 102) along multiple beams (501-503), each symbol (361-363) of the at least one symbol including at least one reference signal (152, 391-393). The beam-swept transmissions (311-313) are at least partly overlapping in frequency and time and have a time offset (381) from each other that is smaller than a guard interval duration (356) associated with the at least one symbol (361-363).

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：US20210391914A1

公开(公告)日：2021-12-16

申请号：US17269396

申请日：2019-08-12

Applicant: Sony Corporation

Inventor： Olof ZANDER ,  Rickard LJUNG ,  Erik BENGTSSON ,  Fredrik RUSEK

IPC: H04B7/10 ,  H04W74/08

Abstract: A method for performing a listen-before-talk procedure in a first transceiver device (N1) for wireless electromagnetic communication in a frequency band (150) is disclosed. A first transceiver device (N1) configured to perform the method is also disclosed. The method comprises receiving at the first transceiver device (N1) a stream of data (11) from a second transceiver device (N2), and determining whether the second transceiver device (N2) is capable of receiving in only a single or in two polarization directions. If the second transceiver device (N2) is capable of receiving in two polarization directions, then the method comprises determining and using an energy threshold that is larger than a regulated energy threshold for listen-before-talk within the frequency band (150). If the second transceiver device (N2) is capable of receiving in only a single polarization direction or if the energy of the received stream of data (11) is smaller than the energy threshold, then constructing a signal to be transmitted within the frequency band (150) by the first transceiver device (N1).

公开(公告)号：US20210203390A1

公开(公告)日：2021-07-01

申请号：US17047051

申请日：2019-04-16

Applicant: SONY CORPORATION

Inventor： Erik BENGTSSON ,  Fredrik RUSEK

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00

Abstract: Methods (10) and devices (20; 30) for configuring multiple input multiple output, MIMO, wireless transmissions are provided. The method (10) comprises: participating (11), by a first network node (20), in a MIMO wireless transmission between a first network node (20) and a second network node 30 of a wireless network (20, 30), the wireless transmission being associated with a spatial channel matrix (40); while participating (11) in the MIMO wireless transmission: identifying (12), by the first network node (20) and in the spatial channel matrix (40), at least one spatial channel sub-matrix (41) having full rank; determining (13), by the first network node (20) and for each identified spatial channel sub-matrix (41), a candidate transmit configuration for the second network node (30); selecting (14), by the first network node (20) and from the determined candidate transmit configurations, a transmit configuration for the second network node (30); and configuring (15), by the first network node (20), the second network node (30) to use the transmit configuration.

公开(公告)号：US20220038170A1

公开(公告)日：2022-02-03

申请号：US17278311

申请日：2019-09-26

Applicant: Sony Corporation

Inventor： Erik BENGTSSON ,  Olof ZANDER ,  Fredrik RUSEK

IPC: H04B7/10 ,  H04B7/06 ,  H04B7/08

Abstract: A method (20) performed by a wireless terminal (10) in a wireless communication network (10, 30) is provided. In the method (20), based on a (fundamental) polarization tracking capability of the wireless terminal (10), at least one downlink polarization of at least one downlink communication between the wireless terminal (10) and an access node (30) of the wireless communication network (10, 30) is determined (204). A reference polarization from the at least one downlink polarization is selected (207). Based on the reference polarization and a (momentary) polarization tracking ability of the wireless terminal (10), at least one uplink polarization of at least one uplink communication between the wireless terminal (10) and the access node (30) is configured (210). A corresponding method (40) performed by the access node (30) is also provided, as well as the mentioned wireless terminal (10) and the access node (30).

公开(公告)号：US20210314040A1

公开(公告)日：2021-10-07

申请号：US17266398

申请日：2019-08-31

Applicant: Sony Corporation

Inventor： Olof ZANDER ,  Kun ZHAO ,  Fredrik RUSEK ,  Erik BENGTSSON ,  Thomas BOLIN ,  Torgny PALENIUS

IPC: H04B7/06 ,  H04W72/04 ,  H04W52/02 ,  H04W24/08

Abstract: A wireless communication device includes a wireless interface for conducting wireless communications with a network access node of a wireless network, the wireless interface having uplink and downlink beam forming capabilities. The wireless communication device further includes a control circuit configured to detect a predetermined condition and, in response to the detection, temporarily operate the wireless interface without beam correspondence between uplink and downlink operations; and transmit a message to the network access node that beam correspondence is not used by the wireless communication device.