公开(公告)号：US20210051535A1

公开(公告)日：2021-02-18

申请号：US16988786

申请日：2020-08-10

Applicant: Nokia Solutions and Networks Oy

Inventor： Srinivasan Selvaganapathy ,  Krzysztof Kordybach ,  Ahmad Awada ,  Jedrzej Stanczak ,  Subramanya Chandrashekar ,  Ingo Viering

IPC: H04W36/00 ,  H04W36/08

Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by a source base station, a first target cell and a second target cell for a handover of a user equipment, wherein the first target cell and the second target cell are cells of the same target base station, setting, by the source base station, an identifier of a first handover preparation procedure and an identifier of a second handover preparation procedure, wherein the identifier of the first handover preparation procedure is different compared to the identifier of the second handover preparation procedure, initializing, by the source base station, the first handover preparation procedure to the first target cell and the second handover preparation procedure to the second target cell and binding, by the source base station, the identifier of the first handover preparation procedure and the identifier of the second handover preparation procedure.

公开(公告)号：US20240236801A1

公开(公告)日：2024-07-11

申请号：US18617510

申请日：2024-03-26

Applicant: Nokia Solutions and Networks Oy

Inventor： Srinivasan SELVAGANAPATHY ,  Jedrzej Stanczak ,  Ahmad Awada

IPC: H04W36/30 ,  H04L41/0668 ,  H04W36/00 ,  H04W36/04 ,  H04W88/06

CPC classification number: H04W36/305 ,  H04L41/0668 ,  H04W36/0069 ,  H04W36/04 ,  H04W88/06

Abstract: An apparatus is caused at least to operate the apparatus in a dual connectivity mode, wherein the apparatus is in communication with a master cell group comprising a primary cell and at least one secondary cell and the apparatus is in communication with a secondary cell group comprising a primary cell and at least one secondary cell; detect a radio link failure between the apparatus and the primary cell of the secondary cell group; and provide information based on the radio link failure to the primary cell of the master cell group, the information being that the radio link failure occurred on the secondary cell group while waiting for a prepared conditional cell change from the primary cell of the secondary cell group to be fulfilled.

公开(公告)号：US11770751B2

公开(公告)日：2023-09-26

申请号：US17149343

申请日：2021-01-14

Applicant: Nokia Solutions and Networks Oy

Inventor： Ahmad Awada ,  Krzysztof Kordybach ,  Jedrzej Stanczak ,  Jean-Michel Pugeat ,  Tero Henttonen ,  Ingo Viering

IPC: H04W36/38 ,  H04W36/36 ,  H04W74/00 ,  H04L25/02

CPC classification number: H04W36/38 ,  H04L25/028 ,  H04W36/36 ,  H04W74/004

Abstract: A method may include receiving a request for conditional handover from a source node. The method may also include sending a conditional handover request acknowledgment message in response to the request. The method may further include sending a conditional handover cancellation message to a source node. The conditional cancellation message may include a genuine cancellation or a modification-related cancellation. Further, the method may include receiving a response message from the source node in response to the conditional handover cancellation message. In addition, the method may include deciding to keep or release user equipment context based on the response message.

公开(公告)号：US11350320B2

公开(公告)日：2022-05-31

申请号：US16988786

申请日：2020-08-10

Applicant: Nokia Solutions and Networks Oy

Inventor： Srinivasan Selvaganapathy ,  Krzysztof Kordybach ,  Ahmad Awada ,  Jedrzej Stanczak ,  Subramanya Chandrashekar ,  Ingo Viering

IPC: H04W36/00 ,  H04W36/08

Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by a source base station, a first target cell and a second target cell for a handover of a user equipment, wherein the first target cell and the second target cell are cells of the same target base station, setting, by the source base station, an identifier of a first handover preparation procedure and an identifier of a second handover preparation procedure, wherein the identifier of the first handover preparation procedure is different compared to the identifier of the second handover preparation procedure, initializing, by the source base station, the first handover preparation procedure to the first target cell and the second handover preparation procedure to the second target cell and binding, by the source base station, the identifier of the first handover preparation procedure and the identifier of the second handover preparation procedure.

公开(公告)号：US11032734B2

公开(公告)日：2021-06-08

申请号：US15754314

申请日：2016-08-17

Applicant: Nokia Solutions and Networks Oy

Inventor： Claudio Rosa ,  Tero Henttonen ,  Ejaz Shah ,  Jedrzej Stanczak

IPC: H04L12/26 ,  H04W28/02 ,  H04W28/08 ,  H04W28/12 ,  H04W48/18

Abstract: For a UE in idle mode and camped on a current cell, in response to receiving a paging message indicating the UE should perform a process to select a cell for camping on for idle mode, the following are performed: performing the process to select one of a plurality of cells for camping on for idle mode; and performing operations to camp on the selected cell. The following are performed as part of a continuous load-balancing process for idle-mode load balancing for a cell: determining whether the cell is congested for UEs camping on the cell while in idle mode; and in response to a determination the cell is congested, sending a paging message to idle-mode UE(s) camped on the cell, wherein the paging message is configured to cause the idle-mode UE(s) to start a process to select a cell for camping on for idle mode.

公开(公告)号：US11963061B2

公开(公告)日：2024-04-16

申请号：US17173765

申请日：2021-02-11

Applicant: Nokia Solutions and Networks Oy

Inventor： Srinivasan Selvaganapathy ,  Ahmad Awada ,  Jedrzej Stanczak

IPC: H04W36/30 ,  H04L41/0668 ,  H04W36/00 ,  H04W36/04 ,  H04W88/06

CPC classification number: H04W36/305 ,  H04L41/0668 ,  H04W36/0069 ,  H04W36/04 ,  H04W88/06

Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: operate the apparatus in a dual connectivity mode, wherein the apparatus is in communication with a master cell group comprising a primary cell and at least one secondary cell and the apparatus is in communication with a secondary cell group comprising a primary cell and at least one secondary cell; detect a radio link failure between the apparatus and the primary cell of the secondary cell group;



provide information based on the radio link failure to the primary cell of the master cell group, the information being that the radio link failure occurred on the secondary cell group while waiting for a prepared conditional cell change from the primary cell of the secondary cell group to be fulfilled.