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.

公开(公告)号：US20220283259A1

公开(公告)日：2022-09-08

申请号：US17636061

申请日：2019-10-01

Applicant: Nokia Technologies Oy

Inventor： Tao TAO ,  Ryan KEATING ,  Mikko SÄILY ,  Karri RANTA-AHO

IPC: G01S5/00 ,  H04L5/00 ,  H04W24/10 ,  H04W56/00

Abstract: Systems, methods, apparatuses, and computer program products for a multi-stage positioning reference signal (PRS) mechanism for downlink angle of departure (DL-AoD) positioning.

公开(公告)号：US20220128684A1

公开(公告)日：2022-04-28

申请号：US17431280

申请日：2019-02-15

Applicant: Nokia Technologies Oy

Inventor： Ryan KEATING ,  Tao TAO

IPC: G01S13/87

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage media for multi-cell positioning. In example embodiments, a method is provided. The method includes transmitting, from a first network device, a first reference signal to a terminal device served by a second network device. The method further includes receiving a second reference signal from the second network device. The method further includes determining a first time difference between a time at which the first RS is transmitted and a time at which the second reference signal is received. In addition, the method includes transmitting information on the first time difference to a location server. As such, the location server can determine positioning information about the terminal device.

公开(公告)号：US20220078843A1

公开(公告)日：2022-03-10

申请号：US17422981

申请日：2019-02-01

Applicant: Nokia Technologies Oy

Inventor： Claudio ROSA ,  Tao TAO ,  Kari HOOLI ,  Esa TIIROLA ,  Frank FREDERIKSEN

IPC: H04W74/08 ,  H04L27/00 ,  H04W72/04

Abstract: Example embodiments relate to wideband communications based on availability assessment. A method for communication comprises performing availability assessment on a set of configured frequency subbands to obtain an availability result, the availability result indicating that at least one of the set of configured frequency subbands is available for a period of time for transmission of intended information and transmitting supplementary information that has been prepared using the at least one frequency subband during a first portion of time within the period of time. The method also comprises preparing the intended information based on the availability result and transmitting the prepared intended information using the at least one frequency subband during a second portion of time following the first portion of time within the period of time. As such, the processing of the intended information can be adapted depending on the dynamic available subband (s) indicated by the availability result.

公开(公告)号：US20210352633A1

公开(公告)日：2021-11-11

申请号：US17277861

申请日：2018-09-27

Applicant: Nokia Technologies Oy

Inventor： Esa TIIROLA ,  Karol SCHOBER ,  Jari MUSTÄJARVI ,  Tao TAO

IPC: H04W72/04 ,  H04W16/14

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable mediums for downlink control of unlicensed sub-bands. The method comprises determining a search space configuration associated with control resources on a plurality of sub-bands which are unlicensed, the search space configuration indicating candidates for detection of downlink control information for the plurality of sub-bands; determining, from the search space configuration, positions of the candidates on the control resources within each of the plurality of sub-bands; mapping an available number of candidates to the determined positions based on a transmission bandwidth assumed by a terminal device; and transmitting downlink control information to the terminal device on the mapped candidates.