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    INTEGRATED CIRCUIT
    51.
    发明申请
    INTEGRATED CIRCUIT 审中-公开
    集成电路

    公开(公告)号：US20160277962A1

    公开(公告)日：2016-09-22

    申请号：US15171656

    申请日：2016-06-02

    Applicant: SUN PATENT TRUST

    Inventor： Ayako HORIUCHI ,  Seigo NAKAO ,  Daichi IMAMURA ,  Akihiko NISHIO

    IPC: H04W28/04 ,  H04W72/04 ,  H04L5/00

    CPC classification number: H04W28/044 ,  H04L1/1861 ,  H04L1/1887 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0091 ,  H04W72/042 ,  H04W74/085

    Abstract: A CCE+ number allocation method reduces the ACK/NACK (Acknowledgment/Negative Acknowledgment) collision probability in a mixed system containing an LTE (Long Term Evolution) system and an LTE+ (Long Term Evolution Advanced) system. A CCE (Control Channel Element)+ number is defined by selecting a number from CCE numbers of the CCE to contain PDCCH (Physical Downlink Control Channel) allocated in a resource element region constituting CCE+ where PDCCH+ is arranged. This can prevent overlapped selection of the CCE number and the CCE+ number even when the PDCCH and the PDCCH+ are simultaneously transmitted, thus making it possible to reduce the collision probability of ACK/NACK correlated to the CCE number and the CCE+ number.

    Abstract translation: CCE +号码分配方法减少了包含LTE（长期演进）系统和LTE +（长期演进高级）系统的混合系统中的ACK / NACK（确认/否定确认）冲突概率。 通过从CCE的CCE号码中选择包含分配在构成CCE +的资源元素区域中的PDCCH（物理下行链路控制信道）的号码来定义CCE（控制信道元素）+号码，其中配置PDCCH +。 这可以防止在同时发送PDCCH和PDCCH +时CCE号和CCE +号的重叠选择，从而可以降低与CCE号和CCE +号相关的ACK / NACK的冲突概率。

    REFERENCE SIGNAL RECEPTION AND CQI COMPUTATION METHOD AND WIRELESS COMMUNICATION APPARATUS
    52.
    发明申请
    REFERENCE SIGNAL RECEPTION AND CQI COMPUTATION METHOD AND WIRELESS COMMUNICATION APPARATUS 有权

    公开(公告)号：US20250158788A1

    公开(公告)日：2025-05-15

    申请号：US19020629

    申请日：2025-01-14

    Applicant: Sun Patent Trust

    Inventor： Akihiko NISHIO ,  Seigo NAKAO ,  Daichi IMAMURA

    IPC: H04L5/00 ,  H04B7/06 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/54

    Abstract: A wireless communication base station apparatus which is able to prevent deterioration in the throughput of LTE terminals even when LTE terminals and LTE+ terminals coexist. In this apparatus, based on the mapping pattern of the reference signals used only in LTE+ terminals, a setting unit sets, in each subframe, the resource block groups where the reference signals used only by the LTE+ terminals are mapped. For symbols mapped to the antennas, an mapping unit maps, to all the resource blocks within one frame, cell specific reference signals used for both LTE terminals and LTE+ terminals. For the symbols mapped to the antennas, the mapping unit maps, to the plurality of resource blocks, of which part of the resource block groups is comprised, in the same subframe within one frame, the cell specific reference signals used only for LTE+ terminals, based on the setting results inputted from the setting unit.

    METHOD OF SCRAMBLING REFERENCE SIGNALS, DEVICE AND USER EQUIPMENT USING THE METHOD
    53.
    发明申请
    METHOD OF SCRAMBLING REFERENCE SIGNALS, DEVICE AND USER EQUIPMENT USING THE METHOD 有权

    公开(公告)号：US20250038915A1

    公开(公告)日：2025-01-30

    申请号：US18917899

    申请日：2024-10-16

    Applicant: Sun Patent Trust

    Inventor： Hui TONG ,  Masayuki HOSHINO ,  Ming XU ,  Daichi IMAMURA

    IPC: H04L5/00 ,  H04B7/024 ,  H04B7/06 ,  H04J11/00 ,  H04L25/02 ,  H04L27/26

    Abstract: A Method of scrambling reference signals, device and user equipment using the method are provided. In the method, a plurality of layers of reference signals assigned on predetermined radio resource of a plurality of layers of resource blocks with the same time and frequency resources are scrambled, the method comprising: an orthogonalizing step of multiplying each layer of reference signal selectively by one of a plurality of orthogonal cover codes (OCCs) with the same length wherein the OCC multiplied to a first layer of reference signal can be configured as different from those multiplied to other layers of reference signals; and a scrambling step of multiplying all of symbols obtained from the OCC multiplied to each of the other layers of reference signals by a symbol-common scrambling sequence wherein the symbol-common scrambling sequences can be different from each other for reference signals multiplied by the same OCC.

    RADIO COMMUNICATION APPARATUSES AND RADIO COMMUNICATION METHOD
    58.
    发明公开
    RADIO COMMUNICATION APPARATUSES AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20240040519A1

    公开(公告)日：2024-02-01

    申请号：US18487725

    申请日：2023-10-16

    Applicant: Sun Patent Trust

    Inventor： Takashi IWAI ,  Akihiko NISHIO ,  Daichi IMAMURA ,  Yoshihiko OGAWA ,  Atsushi MATSUMOTO

    IPC: H04W52/36 ,  H04L5/00 ,  H04W72/044

    CPC classification number: H04W52/365 ,  H04L5/0007 ,  H04L5/0053 ,  H04W72/0473

    Abstract: A radio communication apparatus is provided, which includes a receiver and a controller. The receiver, in operation, receives a first power headroom (PHR), which is obtained by subtracting a transmit power for a data channel from a maximum transmit power at a mobile station and which is transmitted from the mobile station, and receives a second PHR, which is obtained by subtracting the transmit power for the data channel and a transmit power for a control channel from the maximum transmit power at the mobile station and which is transmitted from the mobile station. The controller, in operation, selectively sets a simultaneous transmission of the data channel and the control channel in different frequency bands to be performed by the mobile station. When the data channel and the control channel are simultaneously transmitted in different frequency bands from the mobile station, the second PHR is obtained and transmitted from the mobile station.

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