公开(公告)号：US20240098798A1

公开(公告)日：2024-03-21

申请号：US18264022

申请日：2021-02-22

Applicant: Nokia Technologies Oy

Inventor： Lars DALSGAARD ,  Lei DU ,  Yueji CHEN

IPC: H04W74/0833 ,  H04B7/06 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04B7/0626 ,  H04L5/0051 ,  H04W74/004

Abstract: According to embodiments of the present disclosure, after a terminal device receives an activation indication from a network device to activate a secondary cell configured with physical uplink control channel or a primary secondary cell, the terminal device transmits an acknowledgment in response to the activation indication to the network device. The terminal device measures one or more reference signals related to the SCell while activating the SCell and performing a random access procedure to the network device. In this way, it can shorten delay for SCell activation and reduce latency.

公开(公告)号：US20240121854A1

公开(公告)日：2024-04-11

申请号：US18572540

申请日：2021-06-24

Applicant: Nokia Technologies Oy

Inventor： Lei DU ,  Lars DALSGAARD ,  Yueji CHEN

IPC: H04W76/20 ,  H04W36/00 ,  H04W36/32

CPC classification number: H04W76/20 ,  H04W36/0058 ,  H04W36/32

Abstract: Example embodiments of the present disclosure relate to indication of cell status. A first device includes at least one processor; and at least one memory including computer program codes; wherein the at least one memory and the computer program codes are configured to, with the at least one processor, cause the first device to: determine a cell status of a deactivated cell, the cell status being a known status or an unknown status; and indicate the cell status to a second device.

公开(公告)号：US20230403127A1

公开(公告)日：2023-12-14

申请号：US18033141

申请日：2020-10-23

Applicant: Nokia Technologies Oy

Inventor： Lars Dalsgaard ,  Lei DU ,  Yueji CHEN

IPC: H04L5/00

CPC classification number: H04L5/0098

Abstract: Systems, methods, apparatuses, and computer program products for determining an activation order in multiple secondary cell (SCell) activation. For example, an order of SCell activation may be determined when a user equipment (UE) receives a command activating multiple SCells. When the to-be-activated SCells include both known SCells and unknown SCells, the UE may activate the known SCell (s) first followed by activating the unknown SCells. If the to-be-activated SCells in a given band are all unknown SCells, the UE may operate such that the rest of the unknown SCell (s) in the same band are assumed to be known. The UE may then activate these SCell (s) in the same manner as known SCell activation and according to the same delay limits. If the to-be-activated SCells are in different bands, the UE may first activate the SCells in the band where there is the largest number of unknown SCells.

公开(公告)号：US20240389043A1

公开(公告)日：2024-11-21

申请号：US18686686

申请日：2021-08-27

Applicant: Nokia Technologies Oy

Inventor： Lars DALSGAARD ,  Lei DU ,  Yueji CHEN

IPC: H04W56/00 ,  H04W24/10

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of mitigation of performance degradation for improved system performance. The method comprises determining receive timing difference between a serving cell of the first device and a target cell, the serving cell being located on a first carrier, the target cell being located in a second carrier; and determining to report an indication associated with the receive timing difference to the second device. In this way, the network may be aware of experience performance degradation of the UE due to a large RTD without increasing the network complexity. Meanwhile, the TP performance of the UE may be improved.

公开(公告)号：US20240171997A1

公开(公告)日：2024-05-23

申请号：US18552783

申请日：2021-04-26

Applicant: Nokia Technologies Oy

Inventor： Lei DU ,  Lars DALSGAARD ,  Yueji CHEN ,  Chunli WU ,  Karri Markus RANTA-AHO

IPC: H04W16/28 ,  H04B17/318 ,  H04W74/00 ,  H04W74/0833

CPC classification number: H04W16/28 ,  H04B17/328 ,  H04W74/006 ,  H04W74/0833

Abstract: According to embodiments of the present disclosure, when an unknown secondary cell configured with a physical uplink control channel is activated, a terminal device determines whether to transmit beam information to a network. The terminal device receives a physical downlink control channel (PDCCH) order in a beam which is selected in association with the beam information. In this way, a proper beam can be determined to transmit PDCCH order and it can also reduce delay.

公开(公告)号：US20220201567A1

公开(公告)日：2022-06-23

申请号：US17431048

申请日：2019-02-15

Applicant: Nokia Technologies Oy

Inventor： Riikka DIMNIK ,  Lars DALSGAARD ,  Yueji CHEN

IPC: H04W36/00 ,  H04W16/28 ,  H04W76/10

Abstract: Embodiments of the present disclosure provide methods, devices and computer readable media for communication. In an aspect, a method for communication comprises receiving, at a terminal device, from a network device an indication for the terminal device to establish a connection with a target cell. The method also comprises determining a condition as to whether the target cell and a transmit beam of the target cell for the terminal device are known to the terminal device. The method also comprises determining, based on the condition, a delay for the terminal device to establish the connection. The method further comprises establishing the connection within the delay. The embodiments of the present disclosure can improve communication performance of a terminal device.

公开(公告)号：US20210250851A1

公开(公告)日：2021-08-12

申请号：US17269062

申请日：2018-08-19

Applicant: Nokia Technologies OY

Inventor： Lars DALSGAARD ,  Yueji CHEN

IPC: H04W48/16 ,  H04L5/00 ,  H04W76/15

Abstract: Embodiments of the disclosure provide a method, device and computer readable medium for detecting cells in scenarios of carrier aggregations. According to embodiments of the present disclosure, if the terminal device receives information indicating to connect to a different cell from the currently connecting cell, the terminal device detects the different cell in a spatial direction of the beam on which the information is received. In this way, a significant reduction in terminal device search and measurement effort is achieve, which leads to significant reduction in the latency.