公开(公告)号：US20250159722A1

公开(公告)日：2025-05-15

申请号：US18715479

申请日：2021-12-13

Applicant: Nokia Technologies Oy

Inventor： Torsten WILDSCHEK ,  Ling YU ,  Nuno Manuel KIILERICH PRATAS ,  Vinh VAN PHAN ,  Yong LIU ,  Tao TAO ,  Naizheng ZHENG

IPC: H04W74/0808 ,  H04W74/00 ,  H04W74/0833

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium of enhancement on sidelink in unlicensed band. The method comprises: transmitting, at a first device and to a second device, a target transmission via a sidelink channel occupied by applying a contention window of a first contention window size, CWS; receiving, from the second device, a non-acknowledgement feedback for the target transmission; and determining a second CWS to be used for the contention window based on acknowledgement feedbacks and non-acknowledgement feedbacks associated with a plurality of transmissions preceding the target transmission. In this way, both of intra-SL system collisions and inter-system collisions are taken into consideration when a sidelink UE adjusts the CWS. As such, the sidelink UE can determine the CWS not only based on detection of sidelink transmission failure, but also on the evaluation of ACK/NACK feedbacks for various sidelink transmissions.

公开(公告)号：US20250048394A1

公开(公告)日：2025-02-06

申请号：US18717471

申请日：2022-12-07

Applicant: Nokia Technologies Oy

Inventor： Daniel MEDINA ,  Nuno Manuel KIILERICH PRATAS ,  Ling YU ,  Vinh VAN PHAN ,  Berthold PANZNER ,  Torsten WILDSCHEK ,  Stepan KUCERA ,  Lianghai JI

IPC: H04W72/25 ,  H04L5/00 ,  H04W72/0453

Abstract: Systems, methods, and apparatuses for sidelink collision avoidance based on sensing, such as PSFCH sensing, are provided. One method may include sensing, by a first UE, a first sidelink feedback transmission from a second UE in a first PSFCH resource, and determining, based on the first PSFCH resource, a first radio resource in which the second UE received a first data transmission from a third UE. The method may also include sensing a second sidelink feedback transmission from the second UE in a second PSFCH resource, determining, based on the second PSFCH resource, a second radio resource in which the second UE received a second data transmission from the third UE, and determining, based on at least one of the determined first radio resource or second radio resource, a third radio resource in which the second UE is expected to receive a third data transmission from the third UE.

公开(公告)号：US20250039925A1

公开(公告)日：2025-01-30

申请号：US18716008

申请日：2021-12-14

Applicant: Nokia Technologies Oy

Inventor： Nuno Manuel KIILERICH PRATAS ,  Ling YU ,  Torsten WILDSCHEK ,  Vinh VAN PHAN ,  Yong LIU ,  Tao TAO ,  Naizheng ZHENG

IPC: H04W74/0808 ,  H04W24/08

Abstract: Example embodiments of the present disclosure relate to adjustment of contention window (CW) for listen before talk (LBT). A device determines a target size of a contention window for listen before talk at least in part based on at least one of a first metric and a second metric. The first metric indicates a level of intra-system activity of one of the plurality of systems. The second metric indicates a level of inter-system activity of the plurality of systems. The at least one of first and second metrics are determined by the device based on one or more messages in a set of resources shared by a plurality of systems. This solution enables the device to adjust the LBT by determining the target size of the contention window. By doing so, the device may determine an appropriate size of the contention window even when HARQ feedback is not available. In this way, a system may be able to coexist fairly with other systems in unlicensed spectrum.

公开(公告)号：US20240340762A1

公开(公告)日：2024-10-10

申请号：US18623592

申请日：2024-04-01

Applicant: Nokia Technologies Oy

Inventor： Ling YU ,  SunYoung LEE ,  Faranaz SABOURI-SICHANI ,  Vinh VAN PHAN ,  György Tamás WOLFNER ,  Jakob Lindbjerg BUTHLER

IPC: H04W40/22 ,  H04W88/04

CPC classification number: H04W40/22 ,  H04W88/04

Abstract: A method may include receiving, from a network element over a first interface, configuration information comprising at least a trigger condition for transmission of a remote-relay flow mapping information. The method may also include determining when to transmit the remote-relay flow mapping information to the network element based on the configuration information. The method may further include transmitting, to the network element over the first interface, the remote-relay flow mapping information when the trigger condition is satisfied.

公开(公告)号：US20240306198A1

公开(公告)日：2024-09-12

申请号：US18571075

申请日：2021-06-22

Applicant: Nokia Technologies Oy

Inventor： Ling YU ,  Vinh VAN PHAN ,  Nuno Manuel KIILERICH PRATAS ,  Yong LIU ,  Tao TAO ,  Naizheng ZHENG ,  Lianghai JI

IPC: H04W74/0808 ,  H04W16/14 ,  H04W92/18

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W92/18

Abstract: According to embodiments of the present disclosure, a first device determines one or more second devices to share a channel occupancy time (COT) for a sidelink transmission over an unlicensed spectrum bands. The first device transmits the information which indicates the COT to be shared by the first device and the one or more second devices. The second device determines a transmission gap within the COT and performs a LBT/CCA on the unlicensed spectrum bands based on the determined gap. In this way, it achieves sharing the COT among SL devices. It can improve spectrum efficiency and avoid resource waste.

公开(公告)号：US20240291604A1

公开(公告)日：2024-08-29

申请号：US18432270

申请日：2024-02-05

Applicant: Nokia Technologies Oy

Inventor： Vinh VAN PHAN ,  Torsten WILDSCHEK ,  Thomas Haaning JACOBSEN ,  Faranaz SABOURI-SICHANI ,  Ling YU ,  Jari Olavi LINDHOLM

IPC: H04L5/00 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/25 ,  H04W88/06

CPC classification number: H04L5/0037 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/25 ,  H04W88/06

Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by an apparatus, that co-channel resources in at least one selected slot for transmissions using a first radio access technology overlaps with co-channel resources for transmissions using a second radio access technology and that the co-channel resources are not reserved by another apparatus using the first radio access technology and transmitting by the apparatus, based at least on said determination, a co-channel occupancy message using at least a part of the co-channel resources in the at least one selected slot to occupy the co-channel resources in the at least one selected slot for transmissions using the first radio access technology wherein the at least one selected slot comprises feedback channel resources.

公开(公告)号：US20240259823A1

公开(公告)日：2024-08-01

申请号：US18560561

申请日：2021-05-19

Applicant: Nokia Technologies Oy

Inventor： Nuno Manuel KIILERICH PRATAS ,  Tao TAO ,  Ling YU ,  Vinh VAN PHAN ,  Yong LIU ,  Naizheng ZHENG

IPC: H04W16/14 ,  H04W74/00

CPC classification number: H04W16/14 ,  H04W74/002

Abstract: Example embodiments of the present disclosure relate to sidelink (SL) transmission enhancement. A first device determines a channel occupancy time (COT) to be shared by the first device and at least one second device for transmissions on a shared radio frequency band; selects a first time slot during the COT for a transmission; and performs the transmission in the first time slot by extending the transmission to a first guard period of the first time slot or to a second guard period of a second time slot prior to the first time slot during the COT. By doing so, a channel access procedure requiring a smaller time gap between transmissions can be selected and performed, which can thus improve the flexibility of channel access procedures for SL transmission in the shared frequency band.

公开(公告)号：US20240155709A1

公开(公告)日：2024-05-09

申请号：US18546688

申请日：2022-04-13

Applicant: Nokia Technologies Oy

Inventor： Ling YU ,  György Tamás WOLFNER ,  Vinh VAN PHAN ,  Lianghai JI ,  Faranaz SABOURI-SICHANI ,  Berthold PANZNER ,  Rudraksh SHRIVASTAVA

IPC: H04W76/11

CPC classification number: H04W76/11 ,  H04W88/04

Abstract: A method and apparatus is provided wherein, a relay user equipment receives from at least one user equipment, a request to establish a radio resource control connection with a base station over a relay, transmits to the base station, a radio resource control message based, at least partially, on the request, receives from the base station, a message including, at least, a temporary identifier for the at least one user equipment and transmits at least the temporary identifier to the at least one user equipment.

公开(公告)号：US20240114528A1

公开(公告)日：2024-04-04

申请号：US18371653

申请日：2023-09-22

Applicant: Nokia Technologies Oy

Inventor： Vinh VAN PHAN ,  Ling YU ,  Faranaz SABOURI-SICHANI ,  Stepan KUCERA ,  Berthold PANZNER ,  Ravi Prasad R K ,  György Tamás WOLFNER ,  Hannu Petri HIETALAHTI

IPC: H04W72/25 ,  H04W28/10

CPC classification number: H04W72/25 ,  H04W28/10

Abstract: The disclosure relates to an apparatus comprising: means for receiving (800) sidelink control information sent from a relay user equipment; and means for performing (802) flow control for ingress data sent from the apparatus to the relay user equipment to be relayed to a destination user equipment paired with the apparatus based on the sidelink control information sent from the relay user equipment.

公开(公告)号：US20240113815A1

公开(公告)日：2024-04-04

申请号：US17957383

申请日：2022-09-30

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Ling YU ,  Nuno Manuel KIILERICH PRATAS ,  Daniel MEDINA ,  Torsten WILDSCHEK ,  Vinh VAN PHAN ,  Faranaz SABOURI-SICHANI ,  Jari Olavi LINDHOLM ,  Thomas Haaning JACOBSEN

IPC: H04L1/18

CPC classification number: H04L1/1825 ,  H04L1/1812

Abstract: Systems, methods, apparatuses, and computer program products for user equipment behavior with respect to hybrid automatic repeat request retransmission in new radio sidelink co-existence scenarios with another technology are provided. For example, a method can include enabling, for a receiving user equipment, hybrid automatic repeat request negative acknowledgement only feedback. The method can also include first determining whether to condition negative feedback on at least one first condition, or second determining whether negative feedback is conditioned on at least one second condition. The method can further include third determining whether to retransmit a message according to hybrid automatic repeat request according to results of the first determining or the second determining. The method can additionally include communicating with the receiving user equipment based on a result of the third determining.