公开(公告)号：US20240251429A1

公开(公告)日：2024-07-25

申请号：US18560434

申请日：2022-05-05

Applicant: Nokia Technologies Oy

Inventor： Vinh VAN PHAN ,  Ling YU ,  Lianghai JI ,  Daniela LASELVA ,  Nuno Manuel KIILERICH PRATAS ,  Sudeep HEGDE ,  Berthold PANZNER ,  Torsten WILDSCHEK

IPC: H04W72/25 ,  H04W76/28

CPC classification number: H04W72/25 ,  H04W76/28

Abstract: A method includes causing or detecting, by a user device that is a member of a sidelink group of user devices, a sidelink-related event that triggers an operation associated with the sidelink-related event and specific to the sidelink group; and transmitting a notification of the sidelink-related event via a sidelink group-specific resource, in order to synchronize, among user devices of the sidelink group including any user device of the sidelink group that failed to detect the sidelink-related event, the performing by the user devices of the sidelink group of the operation associated with the sidelink-related event and specific to the sidelink group.

公开(公告)号：US20220353811A1

公开(公告)日：2022-11-03

申请号：US17245257

申请日：2021-04-30

Applicant: Nokia Technologies Oy

Inventor： Sudeep HEGDE ,  Rudraksh SHRIVASTAVA ,  Torsten WILDSCHEK ,  Berthold PANZNER

IPC: H04W52/02 ,  H04L5/16 ,  H04L1/16

Abstract: A physical sidelink feedback channel custom indication may be defined to indicate a half-duplex collision between one or more sidelink UE to a transmitting UE involved in the collision. In response to the indication, the transmitting UE may not retransmit the packet involved in the collision, and may stay awake for an extended period of time. A receiving UE that identified the collision and transmitted the indication may retransmit the packets involved in the collision to the transmitting UEs that have not yet received the respective packets.

公开(公告)号：US20220330318A1

公开(公告)日：2022-10-13

申请号：US17765869

申请日：2020-10-02

Applicant: Nokia Technologies Oy

Inventor： Rudraksh SHRIVASTAVA ,  Jedrzej STANCZAK ,  Sudeep HEGDE ,  Oliver BLUME ,  Hajo BAKKER

IPC: H04W72/14 ,  H04W72/02 ,  H04W72/04 ,  H04W76/20

Abstract: For a UE in a wireless network and able to communicate via sidelink communications with other UE(s), the UE determines whether a specific condition exists indicating the UE has limited availability of CG resources used to communicate for the sidelink communications. The UE sends, using the sidelink communications, a message indicating the limited availability of the CG resources toward the other UE(s). Another UE receives the message indicating a limited availability of CG resources for the UE, and prepares an application in the other UE for a less sensitive mode of operation having less QoS than a mode having a normal QoS. A base station can configure the UE with the CG resources and provide a set of parameters to the UE to be used to form the message for the user equipment to transmit to the other UE(s) using sidelink communications.

公开(公告)号：US20240048285A1

公开(公告)日：2024-02-08

申请号：US18258825

申请日：2020-12-22

Applicant: Nokia Technologies Oy

Inventor： Rudraksh SHRIVASTAVA ,  Vinh VAN PHAN ,  Ling YU ,  Sudeep HEGDE ,  Lianghai JI ,  Berthold PANZNER

IPC: H04L1/1825

CPC classification number: H04L1/1825 ,  H04W88/04

Abstract: A method may include initiating, by a transmitter user equipment, a hybrid automatic repeat request process for groupcasting a transport block over seedbank to one or more relay user equipment and at least one remote user equipment. The method may also include performing a first groupcast transmission of the transport block using the hybrid repeat request process. The method may further include monitoring feedback from the one or more relay user equipment and the at least one remote user equipment at a first time instance and at a second time instance. In addition, the method may include generating a retransmission strategy of the transport block depending on the feedback monitored at the first time instance and the second time instance. Further, the method may include controlling retransmission of the transport block using the hybrid automatic repeat request process based on the retransmission strategy.

公开(公告)号：US20240014978A1

公开(公告)日：2024-01-11

申请号：US18037409

申请日：2020-11-19

Applicant: Nokia Technologies Oy

Inventor： Lianghai Ji ,  Vinh VAN PHAN ,  Ling YU ,  Rudraksh SHRIVASTAVA ,  Sudeep HEGDE

IPC: H04L5/00 ,  H04L1/1812

CPC classification number: H04L5/0053 ,  H04L1/1812

Abstract: Various example embodiments relate to providing feedback with an adaptive acknowledgement mode. A device may transmit an allocation of transmission resource(s) associated with a second acknowledgement mode. The second acknowledgement mode may include transmission of a positive acknowledgement and a negative acknowledgement. Another device may detect a condition to switch to a first acknowledgement mode including transmission of the negative acknowledgement and not transmission of the positive acknowledgement. The other device may transmit an indication of a switch to the first acknowledgement mode. Apparatuses, methods, and computer programs are disclosed.

公开(公告)号：US20230327822A1

公开(公告)日：2023-10-12

申请号：US18040131

申请日：2021-08-04

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Vinh VAN PHAN ,  Ling YU ,  Lianghai JI ,  Faranaz SABOURI-SICHAN ,  Rudraksh SHRIVASTAVA ,  Sudeep HEGDE

IPC: H04L1/1867

CPC classification number: H04L1/1887 ,  H04L1/1896

Abstract: An ARQ system for sidelink communication between transmitter and receiver, with the help of cooperative UE, or relay UE is disclosed. The relay intercepts the initial transmission from transmitter to receiver. If the relay does not intercept any ARQ feedback from the receiver (DTX), it retransmits the initial transmission. Upon receiving at least the Sidelink Control Information, SCI, identifying the retransmission, the transmitter terminates the HARQ process, assuming that the relay is now in charge of the retransmission. Upon reception of the retransmission, the receiver feeds back an HARQ ACK to the relay and the transmitter. If the receiver correctly receives the initial transmission, it feeds back an HARQ ACK to the relay and the transmitter and both relay and transmitter stop the HARQ process. If the relay does not successfully receive the initial transmission, it feds back a NACK to the transmitter which performs retransmission to the relay.

公开(公告)号：US20240364412A1

公开(公告)日：2024-10-31

申请号：US18682760

申请日：2021-08-11

Applicant: Nokia Technologies Oy

Inventor： Vinh VAN PHAN ,  Ling YU ,  Lianghai JI ,  Faranaz SABOURI-SICHANI ,  György Tamás WOLFNER ,  Berthold PANZNER ,  Jakob Lindbjerg BUTHLER ,  Rudraksh SHRIVASTAVA ,  Sudeep HEGDE ,  Prajwal KESHAVAMURTHY

IPC: H04B7/155 ,  H04W40/22

CPC classification number: H04B7/15507 ,  H04W40/22

Abstract: This document discloses a solution for performing rerouting of a relayed connection. In an aspect, a method for an anchor terminal device supporting relaying between an access node and an end terminal device comprises: receiving a message requesting rerouting of said relaying, the message comprising at least one information element indicating at least one candidate terminal device; determining a communication delay between the anchor terminal device and the end terminal device via at least one of said at least one candidate terminal device and comparing the determined communication delay with a maximum delay threshold; if at least one determined communication delay is smaller than the maximum delay threshold, rerouting the relaying between the anchor terminal device and the end terminal device via one of the at least one candidate terminal device that provides the communication delay smaller than the maximum delay threshold, wherein the rerouting is carried out autonomously without receiving from the access node a reconfiguration message instructing the rerouting configuration; and if no communication delay is smaller than the maximum delay threshold, causing transmission of a message to the access node, the message indicating a need for reconfiguration of the relaying.

公开(公告)号：US20240214883A1

公开(公告)日：2024-06-27

申请号：US18291440

申请日：2022-06-23

Applicant: Nokia Technologies Oy

Inventor： Rudraksh SHRIVASTAVA ,  Sudeep HEGDE ,  Vinh VAN PHAN ,  Berthold PANZNER

IPC: H04W36/00

CPC classification number: H04W36/0077

Abstract: According to an example aspect of the present disclosure, there is provided an apparatus comprising means for receiving, at the apparatus, an indication indicating that a target base station of the apparatus for a handover does not support relaying, wherein the apparatus is in a radio resource control connected state and has a relay link with a serving base station via a relay user equipment and pausing the relay link based at least on the received indication.

公开(公告)号：US20240097834A1

公开(公告)日：2024-03-21

申请号：US18260995

申请日：2021-01-13

Applicant: Nokia Technologies Oy

Inventor： Vinh VAN PHAN ,  Ling Yu ,  Lianghai Ji ,  Rudraksh SHRIVASTAVA ,  Sudeep HEGDE

IPC: H04L1/1829 ,  H04L1/1867 ,  H04W72/25

CPC classification number: H04L1/1864 ,  H04L1/1896 ,  H04W72/25

Abstract: It is provided a method comprising: indicating that a HARQ process is initiated for transmitting at least a first HARQ message comprising an inquiry as the first message of the HARQ process, wherein the inquiry inquires whether a relay terminal for relaying a communication of a transmitting terminal is available; transmitting the first HARQ message using the HARQ process; monitoring whether a HARQ feedback is received from at least one relay terminal in response to the first HARQ message according to the HARQ process; deciding that the at least one relay terminal is available if the HARQ feedback is received from the at least one relay terminal; deciding that the at least one relay terminal is not available if the HARQ feedback is not received from the at least one relay terminal.

公开(公告)号：US20240040445A1

公开(公告)日：2024-02-01

申请号：US18020786

申请日：2021-07-22

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Faranaz SABOURI-SICHANI ,  Lianghai JI ,  Ling YU ,  Vinh VAN PHAN ,  Rudraksh SHRIVASTAVA ,  Sudeep HEGDE

IPC: H04W36/00

CPC classification number: H04W36/0058 ,  H04W36/03

Abstract: An arrangement for role management in relay communication is disclosed. In relay communication, one user equipment relays communication between a base station and at least one remote user equipment. Initially, the relay user equipment has a better signal to a base station. When the signal changes, a better signal channel may be achieved by switching roles between a relay user equipment and a remote user equipment. This includes detecting that a better signal exists and determining that a change would provide a better signal.