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.

公开(公告)号：US20230371073A1

公开(公告)日：2023-11-16

申请号：US18028653

申请日：2020-10-09

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Yong LIU ,  Tao TAO ,  Dong LI

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W74/0866

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of HARQ for NR sidelink communication in unlicensed spectrum. The method comprises receiving, from a second device, an indication of at least two candidate sets of code domain resources for the first device to transmit a feedback message for a sidelink transmission between the first device and a third device; and transmitting, to the third device, the feedback message on a target set of code domain resources determined from the at least two candidate sets of code domain resources based on a listen before talk procedure. In this way, additional code domain resources may provide more available time occasions as backup resources for HARQ feedback of sidelink transmission in unlicensed band, which may increase reliability of HARQ feedback transmission for sidelink communication in unlicensed spectrum. Hence it can eventually increase spectral efficiency by avoiding unnecessary retransmission of PSCCH/PSSCH, and can also reduce transmission latency in the meantime.

公开(公告)号：US20230254774A1

公开(公告)日：2023-08-10

申请号：US18012503

申请日：2020-07-01

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Lorenzo GALATI GIORDANO ,  Adrian GARCIA RODRIGUEZ ,  Tao TAO

IPC: H04W52/14 ,  H04B7/06

CPC classification number: H04W52/14 ,  H04B7/0626

Abstract: Embodiments of the present disclosure relate to device, method, apparatus and computer readable storage medium of power control of spatial reuse for supporting TSC in the unlicensed band. The method comprises in accordance with a determination that a sounding packet is transmitted from a second device, determining CSI of channels between the second device and the third device; determining, at least partially based on the CSI, an applicable transmitting power for a first transmission from the first device to a fourth device during a second transmission for a reception of the feedback of the at least one packet sent from a third device to the second device; and performing the first transmission based on the applicable transmitting power during the second transmission. In this way, a transmission of DL TSC packets that has a time scheduling requirement in contrast with the spatial reuse time window can be achieved. Meanwhile, the harmful interference to NOTSN AP during the Block Acknowledgement reception can be avoid.

公开(公告)号：US20230135452A1

公开(公告)日：2023-05-04

申请号：US17907700

申请日：2020-04-09

Applicant: Nokia Technologies Oy

Inventor： Claudio ROSA ,  Timo LUNTTILA ,  Tao TAO

IPC: H04W74/08 ,  H04W72/1268 ,  H04L27/26

Abstract: Example embodiments of the present disclosure relate to a solution for performing an operation related to a listen-before-talk (LBT) process for a transmission. In an aspect, an apparatus determines a duration of a gap between an end point of a first transmission to be transmitted by a further apparatus and a start point of a cyclic prefix extension prior to a second transmission to be transmitted by the apparatus. The apparatus performs an operation related to an LBT process for the second transmission based on comparisons between the duration of the gap and a plurality of threshold durations associated with a plurality of types of LBT processes. Example embodiments of the present disclosure can increase or even maximize the likelihood of the success of LBT processes.

公开(公告)号：US20230135270A1

公开(公告)日：2023-05-04

申请号：US17926792

申请日：2020-06-15

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Yan MENG ,  Tao TAO ,  Lorenzo GALATI GIORDANO

IPC: H04W74/00 ,  H04W74/08 ,  H04B17/345

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of channel coordination in the unlicensed spectrum. The method comprises receiving, at a first device and from a plurality of second devices, information about carrier sensing to be performed by the plurality of the second devices; determining a transmission pattern for a target second device of the plurality of the devices based on the information about the carrier sensing and information about time sensitive traffic of the plurality of the second devices, the transmission pattern including at least a sensing period for transmission of time sensitive traffic of the target second device and a muting period of the target second device; and transmitting a first message indicative of the transmission pattern to the target second device. In this way, the interoperability of the TSN network device and the normal network device can be efficiently improved in an industrial automation scenario. By controlling the access/transmission of the TSC traffic in the TSC dedicated transmission period, the TSC traffic of the target network device can be protected and the latency requirements can be satisfied.

公开(公告)号：US20220393820A1

公开(公告)日：2022-12-08

申请号：US17775623

申请日：2019-11-13

Applicant: Nokia Technologies Oy

Inventor： Ryan KEATING ,  Tao TAO ,  Daejung YOON ,  Stephan SAUR

IPC: H04L5/00 ,  H04W76/14 ,  H04W56/00 ,  G01S5/10

Abstract: According to embodiments of the present disclosure, a PRS transmission timing scheme for sidelink assisted positioning is proposed. According to embodiments of the present disclosure, the supporting terminal device measures a receiving-transmitting (Rx-Tx) time difference between receiving the downlink PRS (DL) and transmitting the sidelink (SL) PRS. The supporting terminal device transmits an indication of the RX-TX time difference to the location management device in order to reduce the impact of low synchronization issue on positioning performance as well as the use of wideband PRS for higher measurement accuracy. In this way, the positioning performance of sidelink assisted positioning has been improved.

公开(公告)号：US20220322274A1

公开(公告)日：2022-10-06

申请号：US17637660

申请日：2019-08-26

Applicant: Nokia Technologies Oy

Inventor： Ryan KEATING ,  Tao TAO ,  Daejung YOON ,  Stephan SAUR ,  Wolfgang ZIRWAS

IPC: H04W64/00

Abstract: Embodiments of the present disclosure relate to beam selection during downlink positioning. According to embodiments of the present disclosure, the terminal devices are grouped based on their characteristics and the anchor terminal device in the group determines the best transmitting beam of the neighbor network device. The non-anchor terminal device uses the assistance information of the best transmitting beam determined by the anchor terminal device. In this way, cost for the terminal device to receive and measure the PRS during downlink positioning has been reduced.