公开(公告)号：US20220225251A1

公开(公告)日：2022-07-14

申请号：US17617461

申请日：2019-07-09

Applicant: Nokia Technologies OY

Inventor： Tao YANG ,  Karol SCHOBER

IPC: H04W56/00 ,  H04L5/00

Abstract: Embodiments of the present disclosure relate to secondary cell activation. A method comprises transmitting, from a first apparatus and on a serving cell in an active status, a MAC layer command for activating at least one secondary cell to a second apparatus, the MAC layer command indicating a configuration on a procedure for activating the at least one secondary cell. The method further comprises receiving an acknowledgement for the MAC layer command from the second apparatus. The method further comprises causing the second apparatus to synchronize, based on at least the configuration and the acknowledgement, with the first apparatus on the at least one secondary cell. As such, the time for activating a Scell can be greatly shortened.

公开(公告)号：US20240195465A1

公开(公告)日：2024-06-13

申请号：US18551380

申请日：2021-03-22

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Zhihang LI ,  Tao YANG ,  Nuan SONG

IPC: H04B7/0456 ,  H04B7/0452

CPC classification number: H04B7/0456 ,  H04B7/0452

Abstract: Embodiments of the present disclosure relate to hybrid beamforming. A plurality of time delay elements is used to perform analog beamforming. Each time delay element is configured to apply the same time delay at different frequencies. The plurality of time delay elements is coupled to at least one RF chain to receive signals. Each antenna in an antenna array is configured to be selectively connected to one of the plurality of time delay elements based on a target configuration of a connection between the plurality of time delay elements and the antenna array. In operation, the target configuration is determined based on time delay information concerning the plurality of time delay elements and channel information concerning a physical channel over which the signals are to be transmitted.

公开(公告)号：US20230216597A1

公开(公告)日：2023-07-06

申请号：US18000416

申请日：2020-12-01

Applicant: Nokia Technologies Oy

Inventor： Nuan SONG ,  Tao YANG

IPC: H04B17/391 ,  H04L5/00

CPC classification number: H04B17/391 ,  H04L5/0051

Abstract: Example embodiments of the present disclosure relate to compensating reference signals to train a neural network. According to embodiments of the present disclosure, a solution for compensating reference signals to train a neural network is proposed. A second device transmits information to a first device. The information is used to trigger generation and transmission of compensated training reference signals. The information indicates a set of receiving ports at the first device. The first device compensates the training reference signals based on downlink channel information and transmits the compensated signals to the second device via one or more transmitting ports. In this way, CSI can be obtained more accurately. Further, a processing model at the second device can be improved.

公开(公告)号：US20240340779A1

公开(公告)日：2024-10-10

申请号：US18695257

申请日：2021-09-30

Applicant: Nokia Technologies Oy

Inventor： Tao YANG ,  Pingping WEN ,  Hao LIU ,  Nuan SONG ,  Yan ZHAO

IPC: H04W48/16 ,  H04W72/1268 ,  H04W76/10

CPC classification number: H04W48/16 ,  H04W72/1268 ,  H04W76/10

Abstract: Example embodiments of the present disclosure relate to methods, devices apparatuses and computer readable storage media of an access procedure for Cell-free Multi-input Multi-output (MIMO). In example embodiments, a terminal device transmits an access request to a first set of uplink access network devices. The access request contains a list of identifications of candidate downlink access network devices. Then, the terminal device receives an access response from a first set of downlink access network devices.

公开(公告)号：US20220078803A1

公开(公告)日：2022-03-10

申请号：US17422992

申请日：2019-01-15

Applicant: Nokia Technologies OY

Inventor： Tao YANG ,  Karol SCHOBER

IPC: H04W72/12 ,  H04L5/00

Abstract: Example embodiments of the present disclosure relate to a device, method, apparatus and computer readable storage medium for scheduling serving cells with a signaling message. In example embodiments, a terminal device receives, in a Layer 1 (L1) signaling message, a resource indication to schedule resources on a plurality of bandwidth parts in a plurality of serving cells. The terminal device determines a reference size of a reference bandwidth part. The terminal device determines a reference resource based on the received resource indication and the reference size of the reference bandwidth part. The terminal device further determines alignment between the reference bandwidth part and a scheduled bandwidth part of the plurality of bandwidth parts. The terminal device determines, based on the reference resource and the alignment, a scheduled resource on the scheduled bandwidth part.