公开(公告)号：US20220255672A1

公开(公告)日：2022-08-11

申请号：US17625301

申请日：2019-08-06

Applicant: Nokia Technologies Oy

Inventor： Tao TAO ,  Chunli WU ,  Timo LUNTTILA

IPC: H04L1/18 ,  H04W72/14

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of retransmission mechanism for configured grant uplink transmission. The method comprising transmitting, to a second device, a transport block while starting a configured grant retransmission timer for autonomous retransmission of the transport block; in response to receiving, from the second device, a feedback indicating unsuccessful reception of the transport block, adjusting expiry time of the configured grant retransmission timer without starting the autonomous retransmission of the transport block; determining whether scheduling information for retransmission of the transport block is received before the adjusted configured grant retransmission timer expires; and in response to determining that the scheduling information is received, retransmitting the transport block while stopping the configured grant retransmission timer. In this way, the retransmission in the Hybrid Automatic Repeat Request process could be performed according to the uplink grant scheduled by the network device and therefore the retransmission efficiency for configured grant uplink transmission in unlicensed spectrum can be improved.

公开(公告)号：US20220104174A1

公开(公告)日：2022-03-31

申请号：US17418084

申请日：2019-01-10

Applicant: Nokia Technologies Oy

Inventor： Jianguo LIU ,  Tao TAO ,  Zhe LUO ,  Yan MENG ,  Gang SHEN

IPC: H04W68/02 ,  H04W68/00 ,  H04W76/28

Abstract: Embodiments of the disclosure provide a method, device and computer readable medium for paging in new radio systems. According to embodiments of the present disclosure, the network device transmits an indication to multiple terminal devices to indicate whether the paging overload occurs on the PO. The terminal device determines whether to continue monitoring the paging message based on the indication. In this way, the power consumption is reduced.

公开(公告)号：US20210306124A1

公开(公告)日：2021-09-30

申请号：US17195142

申请日：2021-03-08

Applicant: Nokia Technologies Oy

Inventor： Tao TAO ,  Chunli WU ,  Renato Barbosa ABREU ,  Karol SCHOBER

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/12

Abstract: Example embodiments of the present disclosure relate to feedback to scheduling release feedback. According to embodiments of the present disclosure, there is provided a solution for feedback to a scheduling release indication. The first device receives control information which comprises a scheduling release indication. The scheduling release indication is associated with a hybrid automatic repeat request (HARQ) process. The first device transmits a feedback to the release indication on an occasion allocated for the HARQ process. In this way, the second device does not need to transmit the scheduling release indication for several times, thereby saving resources. Further, overhead can be saved.

公开(公告)号：US20250071719A1

公开(公告)日：2025-02-27

申请号：US18721103

申请日：2022-02-07

Applicant: Nokia Technologies Oy

Inventor： Tao TAO ,  Ryan KEATING ,  Yan MENG ,  Jianguo LIU

IPC: H04W64/00 ,  H04L5/00 ,  H04W24/10

Abstract: Various example embodiments relate to methods and apparatuses for positioning reference signal configuration and measurement update. An apparatus in a communication network may be configured to transmit to a location server in the communication network information of one or more non-preferred resources for positioning reference signal, PRS, measurement at a terminal device in the communication network, and receive a positioning configuration related indication from the location server. The positioning configuration related indication is obtained in connection with the transmitted information and it indicates the apparatus to update a positioning configuration to reduce PRS measurement of the terminal device on the one or more non-preferred resources.

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：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：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：US20240251410A1

公开(公告)日：2024-07-25

申请号：US18560468

申请日：2021-06-01

Applicant: Nokia Technologies Oy

Inventor： Yong LIU ,  Tao TAO ,  Naizheng ZHENG ,  Dong LI

IPC: H04W72/20 ,  H04W74/0808

CPC classification number: H04W72/20 ,  H04W74/0808

Abstract: Embodiments of the present disclosure relate to a short control signaling transmission for sidelink communication in an unlicensed spectrum. According to one aspect of the present disclosure, if a control signaling is to be transmitted to a second device via a short control signaling transmission, a first device determines whether the short control signaling transmission is available based on at least information related to a counter, the counter being used for counting occasions within a period for the short control signaling transmission at a sidelink interface. If the short control signaling transmission is available, the first device transmits the control signaling to the second device on a first resource configured for the short control signaling transmission. In this way, constraints for the usage of the short control signaling transmission can be satisfied, and a reliable transmission of sidelink control signaling in the unlicensed spectrum can be achieved.

公开(公告)号：US20240147411A1

公开(公告)日：2024-05-02

申请号：US18548728

申请日：2021-03-06

Applicant: Nokia Technologies Oy

Inventor： Ryan KEATING ,  Tao TAO ,  Yong LIU ,  Jun TAN

IPC: H04W64/00 ,  H04L5/00 ,  H04W92/18

CPC classification number: H04W64/00 ,  H04L5/0048 ,  H04W92/18

Abstract: Embodiments of the present disclosure relate to a method, device, apparatus and computer readable medium for sidelink positioning. According to embodiments of the present disclosure, a second device transmits information related to sidelink positioning to a first device. The information indicates that the second device is able to assist with the sidelink positioning and comprises assistance information for the sidelink positioning. The first device selects at least one proper device for the sidelink positioning based on the assistance information. In this way, it improves accuracy of the sidelink positioning.

公开(公告)号：US20240007987A1

公开(公告)日：2024-01-04

申请号：US18254082

申请日：2020-12-17

Applicant: Nokia Technologies Oy

Inventor： Yong LIU ,  Ryan KEATING ,  Jun TAN ,  Tao TAO ,  Dong LI

IPC: H04W64/00 ,  H04L5/00 ,  H04L1/08

CPC classification number: H04W64/00 ,  H04L5/0051 ,  H04L1/08

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of retransmission of sidelink positioning reference signal (PRS). The method comprises transmitting, to a second device, a first sidelink reference signal associated with a positioning or ranging procedure of the first device; and receiving, from the second device, a second sidelink reference signal associated with the positioning or ranging procedure, the second sidelink reference signal comprising information indicating whether the first sidelink reference signal needs to be retransmitted. In this way, the retransmission of the sidelink PRS can be triggered without extra resource consumption and a fast RTT estimation for sidelink ranging and positioning can be achieved.