公开(公告)号：US20210105109A1

公开(公告)日：2021-04-08

申请号：US17124949

申请日：2020-12-17

Applicant: Sun Patent Trust

Inventor： Masayuki HOSHINO ,  Seigo NAKAO ,  Daichi IMAMURA

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/04 ,  H04J11/00

Abstract: A data alignment method capable of preventing degradation in demodulation performance due to variation in signal qualities when a data signal to which a Turbo code is applied is transmitted simultaneously from a plurality of cells. The method divides signal components to be used for data alignment into resources common to all the cells and resources dependent on the cells and transmits encoded and rate-matched data with the first half thereof aligned to the resources common to all the cells and the second half thereof aligned to the resources dependent on the cells.

公开(公告)号：US20180343657A1

公开(公告)日：2018-11-29

申请号：US16053256

申请日：2018-08-02

Applicant: SUN PATENT TRUST

Inventor： Yoshihiko OGAWA ,  Seigo NAKAO ,  Daichi IMAMURA ,  Akihiko NISHIO ,  Masayuki HOSHINO ,  Katsuhiko HIRAMATSU ,  Kenichi MIYOSHI ,  Yasuaki YUDA ,  Sadaki FUTAGI ,  Takashi IWAI

IPC: H04W72/04 ,  H04L27/26

Abstract: Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.

公开(公告)号：US20170324532A1

公开(公告)日：2017-11-09

申请号：US15661566

申请日：2017-07-27

Applicant: Sun Patent Trust

Inventor： Takashi IWAI ,  Akihiko NISHIO ,  Yoshihiko OGAWA ,  Seigo NAKAO ,  Masayuki HOSHINO

IPC: H04L5/00 ,  H04J13/00 ,  H04J11/00 ,  H04L23/02 ,  H04B7/024 ,  H04L12/801 ,  H04L27/26 ,  H04B7/0452

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/0023 ,  H04J11/0026 ,  H04J11/0053 ,  H04J11/0056 ,  H04J13/0062 ,  H04L5/0032 ,  H04L5/0035 ,  H04L23/02 ,  H04L27/2613 ,  H04L47/34

Abstract: Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit (102) sets the cell IDs of all cells in the CoMP set in a cell selection unit (104), and a serving cell setting unit (103) sets the cell ID of the serving cell in the cell selection unit (104). The cell selection unit (104) selects the cell ID having a number closest to the cell ID of the serving cell from the cells in the CoMP set. A sequence information calculation unit (106) derives a sequence group number from the selected cell ID, and the sequence information calculation unit (106) calculates a sequence number from the derived sequence group number and a transmission bandwidth of the DM-RS.

公开(公告)号：US20250056552A1

公开(公告)日：2025-02-13

申请号：US18929082

申请日：2024-10-28

Applicant: Sun Patent Trust

Inventor： Lilei WANG ,  Ming XU ,  Masayuki HOSHINO ,  Akihiko NISHIO

IPC: H04W72/23 ,  H04L1/00 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure provides a communication method, base station and user equipment for configuring a parameter table in a wireless communication system including a base station and a user equipment, the communication method comprising: defining at both the base station and the user equipment a parameter table which includes whole entries of a legacy parameter table and extended entries; and transmitting from the base station to the user equipment a bitmap indication which indicates a sub-table selected from the parameter table, wherein the number of the entries in the sub-table is the same as in the legacy parameter table.

公开(公告)号：US20250039849A1

公开(公告)日：2025-01-30

申请号：US18911090

申请日：2024-10-09

Applicant: SUN PATENT TRUST

Inventor： Masayuki HOSHINO ,  Akihiko NISHIO ,  Seigo NAKAO ,  Daichi IMAMURA ,  Yasuaki YUDA

IPC: H04W72/04 ,  H04B7/06 ,  H04B17/00 ,  H04B17/24 ,  H04L1/00 ,  H04L1/1607 ,  H04L5/00 ,  H04W24/10 ,  H04W72/1268 ,  H04W88/02

Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.

公开(公告)号：US20240333572A1

公开(公告)日：2024-10-03

申请号：US18744226

申请日：2024-06-14

Applicant: Sun Patent Trust

Inventor： Yoshihiko OGAWA ,  Akihiko NISHIO ,  Masayuki HOSHINO ,  Takashi IWAI

IPC: H04L27/26 ,  H04B7/06 ,  H04J13/00 ,  H04L5/00 ,  H04L69/324 ,  H04W24/10 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/20

CPC classification number: H04L27/2613 ,  H04B7/0615 ,  H04B7/0632 ,  H04B7/0684 ,  H04J13/004 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0058 ,  H04L5/0094 ,  H04L69/324 ,  H04W24/10 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/20

Abstract: Provided is a transmitter which improves the flexibility of SRS resource allocation without increasing the amount of signaling for notifying the cyclic shift amount. In the transmitter, with regard to each basic shift amount candidate group having a basic shift amount from 0 to N−1, a transmission control unit (206) specifies the actual shift amount imparted to a cyclic shift sequence used in scrambling a reference signal transmitted from each antenna port, said specification being performed based on a table in which cyclic shift amount candidates correspond to each antenna port, and based on setting information transmitted from a base station (100). With regard to basic shift amount candidates for shift amount X, the table differentiates between an offset pattern comprising offset values for cyclic shift amount candidates corresponding to each antenna port and an offset pattern corresponding to basic shift amount candidates of X+N/2.

公开(公告)号：US20240224196A1

公开(公告)日：2024-07-04

申请号：US18599653

申请日：2024-03-08

Applicant: Sun Patent Trust

Inventor： Lilei WANG ,  Hidetoshi SUZUKI ,  Masayuki HOSHINO

IPC: H04W52/32 ,  H04B17/318 ,  H04W52/24 ,  H04W52/38

CPC classification number: H04W52/325 ,  H04B17/318 ,  H04W52/242 ,  H04W52/383 ,  H04W52/243

Abstract: The present disclosure provides a power control method and a wireless device, in a cluster comprised of wireless devices including a first wireless device and a second wireless device, comprising: receiving power control information including a second data channel transmission power, from the second wireless device; determining a first data channel transmission power based on the second data channel transmission power; and controlling data channel transmission power of the first wireless device according to the first data channel transmission power; wherein, the first data channel transmission power is a power allowing the first wireless device to reach all wireless devices in the cluster, and the second data channel transmission power is a power allowing the second wireless device to reach all wireless devices in the cluster.

公开(公告)号：US20230254197A1

公开(公告)日：2023-08-10

申请号：US18296845

申请日：2023-04-06

Applicant: Sun Patent Trust

Inventor： Michael EINHAUS ,  Alexander GOLITSCHEK EDLER VON ELBWART ,  Joachim LOEHR ,  Masayuki HOSHINO

IPC: H04L27/34 ,  H04L1/00 ,  H04W72/20 ,  H04W72/1263

CPC classification number: H04L27/34 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0029 ,  H04W72/20 ,  H04W72/1263 ,  H04L1/0028

Abstract: The present disclosure relates to adaptive modulation and coding scheme selection and signaling in a communication system. In particular, a modulation and coding scheme to be used for transmission of a data is selected from a set of predetermined modulation and coding schemes. The predetermination of the set is performed by selecting the set from a plurality of predefined sets. The sets have the same size, so that a modulation and coding selection indicator signaled to select the modulation and coding scheme may be advantageously applied to any of the selected sets. Moreover, a second set includes schemes with a modulation not covered by the schemes of a first set, and which is of a higher order than any modulation in the first set.

公开(公告)号：US20210211969A1

公开(公告)日：2021-07-08

申请号：US17208704

申请日：2021-03-22

Applicant: Sun Patent Trust

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

IPC: H04W48/02 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L1/16 ,  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.

公开(公告)号：US20210092722A1

公开(公告)日：2021-03-25

申请号：US17117623

申请日：2020-12-10

Applicant: Sun Patent Trust

Inventor： Masayuki HOSHINO ,  Akihiko NISHIO ,  Seigo NAKAO ,  Daichi IMAMURA

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/06 ,  H04L1/20 ,  H04L5/00 ,  H04L25/02 ,  H04W72/12 ,  H04B7/06 ,  H04B7/0456

Abstract: Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information.