公开(公告)号：US20170070331A1

公开(公告)日：2017-03-09

申请号：US15354128

申请日：2016-11-17

Applicant: Sun Patent Trust

Inventor： Masayuki HOSHINO ,  Akihiko NISHIO

IPC: H04L5/00 ,  H04B17/345 ,  H04B7/06

CPC classification number: H04L5/0053 ,  H04B7/024 ,  H04B7/0626 ,  H04B17/24 ,  H04B17/309 ,  H04B17/318 ,  H04B17/345 ,  H04B17/404 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/0094

Abstract: The purpose of the present invention is to be able to simultaneously generate three or more sets of CSI within a predetermined time interval, without degrading the accuracy of the CSI, to achieve CoMP control for flexible switching of base stations. At predetermined intervals or at timing coincident with reception of trigger information, a generation unit uses a CSI-RS resource to measure a desired signal component and interference component, and generate CSI. A transmission unit transmits control information including the CSI. During a given interval (for example, during four sub-frames) following reception of trigger information, the generation unit does not measure the interference component, instead using the most recent previously measured interference component, to measure the channel quality.

Abstract translation: 本发明的目的是能够在不降低CSI的精度的情况下在预定的时间间隔内同时生成三组或更多组的CSI，从而实现基站的灵活切换的CoMP控制。 以预定的间隔或与触发信息的接收一致的定时，生成单元使用CSI-RS资源来测量期望的信号分量和干扰分量，并产生CSI。 发送单元发送包括CSI的控制信息。 在接收到触发信息之后的给定间隔（例如，在四个子帧期间）中，生成单元不使用最新的先前测量的干扰分量来测量干扰分量来测量信道质量。

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.

公开(公告)号：US20250030496A1

公开(公告)日：2025-01-23

申请号：US18908511

申请日：2024-10-07

Applicant: Sun Patent Trust

Inventor： Yoshihiko OGAWA ,  Akihiko NISHIO ,  Takashi IWAI ,  Seigo NAKAO ,  Daichi IMAMURA ,  Atsushi SUMASU

IPC: H04J11/00 ,  H04B7/0452 ,  H04B7/06 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00 ,  H04W72/23 ,  H04W72/54 ,  H04W88/02 ,  H04W88/08

Abstract: A terminal apparatus includes circuitry and a transmitter. The circuitry, in operation, generates a reference signal using a cyclic shift value and an orthogonal sequence, which are associated with each other. The orthogonal sequence is one of two orthogonal sequences corresponding to a first orthogonal sequence [1, 1] and a second orthogonal sequence [1, −1]. The cyclic shift value is one of 12 cyclic shift values ranging from 0 to 11. The transmitter, in operation, transmits the reference signal multiplexed with a data signal. Two of the cyclic shift values having a difference of 6 are respectively associated with the two orthogonal sequences.

公开(公告)号：US20240314701A1

公开(公告)日：2024-09-19

申请号：US18671468

申请日：2024-05-22

Applicant: Sun Patent Trust

Inventor： Takashi IWAI ,  Daichi IMAMURA ,  Akihiko NISHIO ,  Yoshihiko OGAWA ,  Shinsuke TAKAOKA

IPC: H04W52/24 ,  H04L5/00 ,  H04W52/14 ,  H04W52/16 ,  H04W52/32 ,  H04W72/044

CPC classification number: H04W52/241 ,  H04L5/0048 ,  H04L5/0051 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W72/0473

Abstract: Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.

公开(公告)号：US20240204961A1

公开(公告)日：2024-06-20

申请号：US18587302

申请日：2024-02-26

Applicant: Sun Patent Trust

Inventor： Yoshihiko OGAWA ,  Akihiko NISHIO ,  Seigo NAKAO

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/1607 ,  H04L1/1829 ,  H04L27/26 ,  H04W72/20 ,  H04W72/21

CPC classification number: H04L5/0053 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/20 ,  H04W72/21 ,  H04L27/2636

Abstract: This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal, which uses a plurality of different layers to transmit two code words in which control information is placed, comprises: a resource amount determining unit that determines, based on a lower one of the encoding rates of the two code words or based on the average value of the reciprocals of the encoding rates of the two code words, resource amounts of control information in the respective ones of the plurality of layers; and a transport signal forming unit that places, in the two code words, the control information modulated by use of the resource amounts, thereby forming a transport signal.

公开(公告)号：US20240146434A1

公开(公告)日：2024-05-02

申请号：US18407811

申请日：2024-01-09

Applicant: Sun Patent Trust

Inventor： Takashi IWAI ,  Daichi IMAMURA ,  Akihiko NISHIO ,  Yoshihiko OGAWA ,  Masaru FUKUOKA

IPC: H04J11/00 ,  H04B1/713 ,  H04B7/024 ,  H04B17/354 ,  H04J13/00 ,  H04L1/20 ,  H04L5/00

CPC classification number: H04J11/0053 ,  H04B1/713 ,  H04B7/024 ,  H04B17/354 ,  H04J13/0062 ,  H04J13/0074 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0051 ,  H04L5/0091 ,  H04L1/0026

Abstract: Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.

公开(公告)号：US20240080760A1

公开(公告)日：2024-03-07

申请号：US18506810

申请日：2023-11-10

Applicant: SUN PATENT TRUST

Inventor： Akihiko NISHIO ,  Seigo NAKAO ,  Yoshiko SAITO ,  Alexander GOLITSCHEK EDLER VON ELBWART

IPC: H04W52/02 ,  H04L1/00 ,  H04L5/00 ,  H04L5/14 ,  H04W72/23

CPC classification number: H04W52/0209 ,  H04L1/0061 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0092 ,  H04L5/14 ,  H04W72/23 ,  H04L5/0064 ,  H04W52/0229 ,  Y02D30/70

Abstract: Disclosed is a wireless communication base station device capable of reducing the power consumption of a terminal when broadband transmission is performed with only an uplink. With this device, a setting unit sets mutually different terminal IDs per a plurality of uplink unit bands for a terminal that communicates using a plurality of uplink unit bands and prescribed downlink unit bands which are fewer in number than the uplink unit bands; a control unit that respectively allocates resource allocation information per a plurality of uplink unit bands to a PDCCH arranged in a prescribed downlink unit band; and a PDCCH creation unit that creates a PDCCH signal by respectively masking the resource allocation information per a plurality of uplink unit bands with the terminal ID that has been set per a plurality of uplink unit bands.

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.

公开(公告)号：US20230300843A1

公开(公告)日：2023-09-21

申请号：US18322366

申请日：2023-05-23

Applicant: Sun Patent Trust

Inventor： Akihiko NISHIO ,  Daichi IMAMURA

IPC: H04W72/21 ,  H04L1/00 ,  H04B1/713 ,  H04W72/20 ,  H04W72/23 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0029 ,  H04L1/0072 ,  H04B1/713 ,  H04W72/20 ,  H04W72/23 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091

Abstract: Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal (200), a reception processing unit (203) detects control information indicating whether or not to request transmission of a sounding reference signal (SRS), whereupon a transmission signal forming unit (207) transmits an A-SRS by way of control by a transmission control unit (206) on the basis of control information. The transmission control unit (206) determines whether or not to execute SRS transmission on the basis of an “SRS Transmission Execution Rule” and the reception status of trigger information.

公开(公告)号：US20230292220A1

公开(公告)日：2023-09-14

申请号：US18322424

申请日：2023-05-23

Applicant: Sun Patent Trust

Inventor： Yoshihiko OGAWA ,  Seigo NAKAO ,  Akihiko NISHIO ,  Masayuki HOSHINO ,  Daichi IMAMURA ,  Atsushi SUMASU

IPC: H04W48/02 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/1867 ,  H04L5/00 ,  H04L1/1829 ,  H04L1/1607 ,  H04W28/04 ,  H04W48/12

CPC classification number: H04W48/02 ,  H04B7/0413 ,  H04L1/0031 ,  H04L1/1893 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0057 ,  H04L1/0026 ,  H04L1/1861 ,  H04L1/1671 ,  H04L5/0055 ,  H04W28/04 ,  H04W48/12

Abstract: An integrated circuit includes circuitry, which, in operation, controls transmitting downlink data to a terminal apparatus; receiving a plurality of transport blocks which are transmitted in a same time period using a same frequency band in a spatial multiplexing scheme, wherein a same acknowledgement information (ACK/NACK) relating to an error detection result of the downlink data is scrambled with different scrambling schemes respectively for the plurality of transport blocks and the respectively scrambled ACK/NACK is multiplexed with data on respective ones of the plurality of transport blocks, and channel quality information (CQI) of a downlink channel is multiplexed with the data on only one transport block of the plurality of transport blocks by the terminal apparatus; and extracting the ACK/NACK and the CQI from the received plurality of transport blocks.