公开(公告)号：US20220038223A1

公开(公告)日：2022-02-03

申请号：US17483130

申请日：2021-09-23

Applicant: NEC CORPORATION

Inventor： Lei JIANG ,  Hongmei LIU ,  Gang WANG ,  Zhennian SUN ,  Chuangxin JIANG

IPC: H04L5/00 ,  H04W48/12 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W52/02

Abstract: Embodiments of the disclosure provide a method and apparatus for performing fractional subframe transmission. The method may comprise: in response to detecting that a channel becomes available, determining a target position from at least one potential position predefined in a subframe; and performing the fractional subframe transmission from the target position.

公开(公告)号：US20210288856A1

公开(公告)日：2021-09-16

申请号：US16346890

申请日：2016-11-03

Applicant: NEC CORPORATION

Inventor： Hongmei LIU ,  Yukai GAO ,  Gang WANG

IPC: H04L27/26 ,  H04L5/00

Abstract: Embodiments of the disclosure provide a method and device for indicating numerology. The method comprises: determining numerology information of a carrier, the numerology information indicating numerologies of one or more basic units for the carrier; and transmitting the numerology information to a terminal device to enable reception based on the numerology information.

公开(公告)号：US20200305005A1

公开(公告)日：2020-09-24

申请号：US16898094

申请日：2020-06-10

Applicant: NEC Corporation

Inventor： Lei JIANG ,  Hongmei LIU ,  Gang WANG ,  Chuangxin JIANG ,  Zhennian SUN

IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08

Abstract: Embodiments of the present invention provide method and devices for signaling transmission in unlicensed band. The method comprising determining a signal transmission pattern, which defines time and frequency resources for transmitting at least one signal in a first frequency band; signaling, via a second frequency band, the signal transmission pattern to a first device; and transmitting the at least one signal via the first frequency band, to the first device, according to the signal transmission pattern; wherein a transmission of one of the at least one signal is skipped if time and frequency resource for the transmission defined by the signal transmission pattern is detected as busy. Corresponding methods and devices for receiving a signal which is transmitted using above method are also disclosed.

公开(公告)号：US20240224374A1

公开(公告)日：2024-07-04

申请号：US18605389

申请日：2024-03-14

Applicant: NEC CORPORATION

Inventor： Hongmei LIU ,  Lei JIANG ,  Gang WANG

IPC: H04W76/27 ,  H04L5/00 ,  H04L27/00 ,  H04W24/08 ,  H04W48/14 ,  H04W68/00 ,  H04W72/044 ,  H04W74/0808

CPC classification number: H04W76/27 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L27/0006 ,  H04W24/08 ,  H04W68/005 ,  H04W72/0473 ,  H04W74/0808 ,  H04W48/14

Abstract: Embodiments of the present disclosure relate to a method and apparatus of data transmission in a wireless communication system and a method and apparatus of receiving data in a wireless communication system. The method of data reception comprises transmitting a request for the RRC message to the network node based on default transmission parameters; and receiving the RRC message from the network node at a predetermined time unit. With embodiments of the present disclosure, it is possible to request the RRC message when the terminal device need this message and therefore the RRC message transmission can be reduced and in turn, the inter-node interference can be limited, and the number of LBTs required for these signal transmissions can be reduced if they are transmitted on unlicensed spectrum.

公开(公告)号：US20240171338A1

公开(公告)日：2024-05-23

申请号：US18425889

申请日：2024-01-29

Applicant: NEC CORPORATION

Inventor： Hongmei LIU ,  Lei JIANG ,  Gang WANG

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/00 ,  H04W16/14 ,  H04W68/00 ,  H04W76/27

CPC classification number: H04L5/0048 ,  H04L1/0079 ,  H04L5/005 ,  H04L27/0006 ,  H04W16/14 ,  H04W68/005 ,  H04W76/27 ,  H04W68/00

Abstract: Embodiments of the present disclosure relate to methods and apparatuses of transmitting information and receiving information in a wireless communication system. In the method of transmitting information, the information comprises at least two of a reference signal and more than one radio resource control (RRC) message. The method comprises transmitting the at least two of the reference signal and the more than one RRC message by using a same time unit or at least two continuous time units, wherein the at least two of the reference signal and the more than one RRC message have a same time offset or different time offsets and have a same transmission periodicity or transmission periodicities which are different multiples of a predetermined periodicity. Thus, the interference to other systems or nodes can be limited, and the number of LBTs required for these signal transmissions can be reduced if they are transmitted on unlicensed spectrum.

公开(公告)号：US20230121904A1

公开(公告)日：2023-04-20

申请号：US18075745

申请日：2022-12-06

Applicant: NEC Corporation

Inventor： Chuangxin JIANG ,  Yukai GAO ,  Hongmei LIU ,  Gang WANG

IPC: H04W72/04 ,  H04W56/00

Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer program for signal configuration in a wireless communication system. A method implemented at a network device comprises: transmitting information related to a resource allocation for a signal, and broadcasting the signal in accordance with the resource allocation; wherein the signal includes at least one of: a reference signal and a control signal containing system information. By virtue of the method, resource utilization may be more flexibly controlled.

公开(公告)号：US20200228991A1

公开(公告)日：2020-07-16

申请号：US16480494

申请日：2015-07-31

Applicant: NEC CORPORATION

Inventor： Lei JIANG ,  Hongmei LIU ,  Chuangxin JIANG ,  Gang WANG

IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08

Abstract: A method for performing transmission between a base station and a terminal device according to a frame structure over an unlicensed spectrum in a wireless network that supports communications over a licensed spectrum and the unlicensed spectrum. The frame structure includes a first set of time resources and at least a first number of consecutive downlink subframes. The method includes determining, during the first set of time resources, availability of an unlicensed carrier in the unlicensed spectrum and reserving a subset in the first set of time resources on the unlicensed carrier upon the unlicensed carrier being determined to be available. The method also includes performing downlink transmission from the base station to the terminal device at least partially within the first number of consecutive downlink subframes on at least the unlicensed carrier in response to a duration of the reserved subset of time resources expiring.

公开(公告)号：US20200162212A1

公开(公告)日：2020-05-21

申请号：US16475834

申请日：2017-01-05

Applicant: NEC CORPORATION

Inventor： Hongmei LIU ,  Gang WANG

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/16 ,  H04B1/7143 ,  H04W76/11 ,  H04W24/08

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for downlink control information (DCI) transmission and receiving in a wireless communication system. A DCI configuration parameter can be first transmitted to a terminal device; and then DCI is transmitted to the terminal device, wherein the DCI configuration parameter indicates time-frequency resources for the DCI. With embodiments of the present disclosure, the UE could perform a flexible DCI monitoring according to the DCI configuration parameter and thus it may support the DCI monitoring occasion change due to numerology and scheduling unit size.

公开(公告)号：US20250071740A1

公开(公告)日：2025-02-27

申请号：US18944978

申请日：2024-11-12

Applicant: NEC CORPORATION

Inventor： Hongmei LIU ,  Gang WANG

IPC: H04W72/0446 ,  H04W72/12

Abstract: Embodiments of the disclosure provide a method and device for indicating time domain resource allocation. The method comprises: determining time information of a resource region based on numerology information of the resource region, the resource region being allocated for transmitting data to a terminal device; and transmitting the time information to the terminal device to enable the terminal device to receive the data on the resource region.

公开(公告)号：US20220124709A1

公开(公告)日：2022-04-21

申请号：US17561174

申请日：2021-12-23

Applicant: NEC CORPORATION

Inventor： Hongmei LIU ,  Gang WANG

IPC: H04W72/04 ,  H04W72/12

Abstract: Embodiments of the disclosure provide a method and device for indicating time domain resource allocation. The method comprises: determining time information of a resource region based on numerology information of the resource region, the resource region being allocated for transmitting data to a terminal device; and transmitting the time information to the terminal device to enable the terminal device to receive the data on the resource region.