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    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING UPLINK INFORMATION
    2.
    发明申请
    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING UPLINK INFORMATION 有权

    公开(公告)号：US20230118140A1

    公开(公告)日：2023-04-20

    申请号：US18083822

    申请日：2022-12-19

    Applicant: NEC Corporation

    Inventor： Yukai GAO ,  Chuangxin JIANG ,  Zhennian SUN ,  Gang WANG

    IPC: H04L1/1607 ,  H04L5/00 ,  H04L1/1867 ,  H04L1/1829 ,  H04L27/26 ,  H04W72/21 ,  H04W28/06

    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.

    METHOD AND APPARATUS FOR COMMUNICATION BASED ON SHORT TRANSMISSION TIME INTERVALS IN A WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    METHOD AND APPARATUS FOR COMMUNICATION BASED ON SHORT TRANSMISSION TIME INTERVALS IN A WIRELESS COMMUNICATION SYSTEM 有权

    公开(公告)号：US20210307048A1

    公开(公告)日：2021-09-30

    申请号：US16469015

    申请日：2016-01-29

    Applicant: NEC CORPORATION

    Inventor： Chuangxin JIANG ,  Yukai GAO ,  Gang WANG

    IPC: H04W72/12 ,  H04W72/04 ,  H04L5/14

    Abstract: Embodiments of the present disclosure relates to the communication processes in a FDD wireless communication system based on short TTIs. According to one embodiment of the present disclosure, there provide a method for communication by a base station. The method comprise: transmitting, to a user equipment, downlink control information in a downlink TTI of a mth downlink subframe which supports two or more downlink TTIs; and receiving, from the user equipment, uplink data scheduled by the downlink control information carried in a mth or (m+1)th uplink subframe which supports two or more uplink TTIs. The downlink control information transmitted in at least one of downlink TTIs supported by downlink subframes is arranged to schedule uplink data transmission in at least two of uplink TTIs supported by uplink subframes. In the other aspects of the present disclosure, there also provides methods for communication by a user equipment and corresponding apparatuses.

    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING UPLINK INFORMATION
    4.
    发明申请
    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING UPLINK INFORMATION 审中-公开

    公开(公告)号：US20200169443A1

    公开(公告)日：2020-05-28

    申请号：US16777499

    申请日：2020-01-30

    Applicant: NEC CORPORATION

    Inventor： Yukai GAO ,  Chuangxin JIANG ,  Zhennian SUN ,  Gang WANG

    IPC: H04L27/26 ,  H04W28/06 ,  H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16

    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.

    METHOD AND APPARATUS FOR COMMUNICATIONS WITH CARRIER AGGREGATION
    5.
    发明申请
    METHOD AND APPARATUS FOR COMMUNICATIONS WITH CARRIER AGGREGATION 审中-公开

    公开(公告)号：US20190320459A1

    公开(公告)日：2019-10-17

    申请号：US16420534

    申请日：2019-05-23

    Applicant: NEC CORPORATION

    Inventor： Zhennian SUN ,  Chuangxin JIANG ,  Yukai GAO ,  Gang WANG

    IPC: H04W72/14 ,  H04W72/12 ,  H04L1/18 ,  H04W72/04

    Abstract: A method at a base station for performing data transmission to a user equipment in a communications system supporting carrier aggregation of at least one first carrier on which a short TTI is applied and at least one second carrier on which a long TTI is applied. The method transmits at least one DL scheduling grant corresponding to data transmission to the user equipment in a DL control region of at least one of a short TTI on a first carrier and a long TTI on a second carrier and performs DL data transmission towards the user equipment in a data transmission region of a short TTI on the first carrier and in the data transmission region of a long TTI on the second carrier as indicated by the at least one DL scheduling grant.

    METHOD AND DEVICE FOR PERFORMING COMMUNICATION
    6.
    发明申请
    METHOD AND DEVICE FOR PERFORMING COMMUNICATION 审中-公开

    公开(公告)号：US20190280801A1

    公开(公告)日：2019-09-12

    申请号：US16318995

    申请日：2016-07-19

    Applicant: NEC CORPORATION

    Inventor： Yukai GAO ,  Chuangxin JIANG ,  Gang WANG

    IPC: H04L1/00 ,  H04L5/00

    Abstract: Embodiments of the disclosure provide a method and device for performing communication. The method comprises: determining a target transmission pattern from a set of candidate transmission patterns, wherein each of the candidate transmission patterns contains a DL transmission part and/or a UL transmission part, and the candidate transmission patterns differ from one another in terms of subcarrier spaces of the respective DL transmission parts and/or the UL transmission parts; and performing communication between a network device and a terminal device by using the target transmission pattern.

    METHODS AND APPARATUSES FOR TRANSMITTING A REFERENCE SIGNAL
    9.
    发明公开
    METHODS AND APPARATUSES FOR TRANSMITTING A REFERENCE SIGNAL 审中-公开

    公开(公告)号：US20230283419A1

    公开(公告)日：2023-09-07

    申请号：US18196071

    申请日：2023-05-11

    Applicant: NEC Corporation

    Inventor： Chuangxin JIANG ,  Yukai GAO ,  Zhennian SUN ,  Gang WANG

    IPC: H04L5/00 ,  H04L27/26 ,  H04W72/23 ,  H04W76/27 ,  H04B7/0413

    CPC classification number: H04L5/0021 ,  H04L27/2613 ,  H04L5/0051 ,  H04W72/23 ,  H04W76/27 ,  H04B7/0413 ,  H04L5/0048 ,  H04L5/0007 ,  H04W88/02

    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting a reference signal and a method and apparatus of receiving a reference signal. In one embodiment of the present disclosure, the method of transmitting a reference comprises receiving a reference signal configuration indication, wherein reference signal resources are divided into at least two reference signal groups, and the reference signal configuration indication indicates a reference signal configuration including a reference signal group configuration; and transmitting the reference signal using a reference signal sequence in a reference signal group as indicated by the reference signal group configuration, wherein the reference signal sequence can be multiplexed with another layer or another user in different reference signal groups. With embodiments of the present disclosure, reference signals for different layers or users can be multiplexed in different reference signal groups and thus, more mu-users with unequal allocated bandwidths can be supported without significant channel estimation loss and Peak to Average Power Ratio (PAPR) loss.

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