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公开(公告)号：US20250126576A1
公开(公告)日：2025-04-17
申请号：US18999509
申请日：2024-12-23
Inventor： Shotaro MAKI , Takashi IWAI , Hidetoshi SUZUKI
Abstract: The present invention provides a transmitter which can suitably perform a transmission power control in a PT-RS port. In this transmitter (100), a control unit (101) determines a transmission power for transmitting a reference signal (PT-RS) for phase tracking and a data signal within a range in which the maximum transmission power for each antenna port is not exceeded. In addition, a transmission unit (105) transmits the reference signal for phase tracking and the data signal at the transmission power determined by the control unit (101).
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公开(公告)号：US20240322949A1
公开(公告)日：2024-09-26
申请号：US18732328
申请日：2024-06-03
Inventor： Jun MINOTANI , Takashi IWAI , Tomofumi TAKATA , Yoshio URABE
IPC: H04L1/1812 , H04W72/20
CPC classification number: H04L1/1812 , H04W72/20
Abstract: A downlink wireless transmission device comprising: a control circuit that generates common information that is common to a plurality of users and unique user information that is unique to each of the plurality of users and corresponds to information pertaining to retransmission control, said common and unique information including information pertaining to retransmission control for each of the plurality of users; and a transmission circuit that transmits control signals including the common information and the unique user information.
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公开(公告)号：US20240259825A1
公开(公告)日：2024-08-01
申请号：US18629604
申请日：2024-04-08
Inventor： Jun MINOTANI , Atsushi MATSUMOTO , Takashi IWAI , Tomofumi TAKATA , Yoshio URABE
Abstract: Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit (107) of the radio communication device (SR initiator) (100) determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device (100) belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission/reception unit (101) transmits the SR signal by using the determined transmission resources.
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公开(公告)号：US20240188010A1
公开(公告)日：2024-06-06
申请号：US18552866
申请日：2022-01-06
Inventor： Toshiyuki MAKINO , Takashi IWAI , Akihiko NISHIO
IPC: H04W56/00 , H04W74/0808
CPC classification number: H04W56/001 , H04W74/0808
Abstract: This terminal includes a receiving circuit for receiving a synchronization signal, and a control circuit for determining a correspondence relationship between a synchronization signal block transmission position and a synchronization signal block index, wherein the control circuit changes the correspondence relationship between the synchronization signal block transmission position and the synchronization signal block at a first reception timing of the synchronization signal block and a second reception timing thereof.
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公开(公告)号：US20240023165A1
公开(公告)日：2024-01-18
申请号：US18356000
申请日：2023-07-20
Inventor： Tomoya NUNOME , Takashi IWAI , Yoshio URABE
CPC classification number: H04W74/0816 , H04W84/12 , H04W74/08 , H04W74/006 , H04W52/245
Abstract: A wireless station that belongs to a communication cell includes a receiver which, in operation, receives a trigger frame transmitted from an access point that belongs to an interference cell and a controller which, in operation, determines, based on at least one parameter included in the trigger frame and reception power value of the trigger frame received at the wireless station, whether the wireless station is allowed to transmit to other wireless station that belongs to the communication cell, wherein the at least one parameter includes a value set based on transmit power value of the trigger frame transmitted from the access point.
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Patent Agency Ranking
公开(公告)号：US20230403710A1
公开(公告)日：2023-12-14
申请号：US18457953
申请日：2023-08-29
Inventor： Tetsuya YAMAMOTO , Hongchao LI , Hidetoshi SUZUKI , Takashi IWAI
Abstract: Provided is a terminal that can appropriately transmit an uplink signal. In a terminal (200), a control unit (211) determines a processing mode with respect to uplink data and uplink control information according to a requirement for at least one of uplink data and uplink control information when transmission of an uplink data channel that includes the uplink data and transmission of an uplink control channel that includes the uplink control information temporally overlap. A transmission unit (218) transmits the at least one of the uplink data and the uplink control information on the basis of the determined processing mode.
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公开(公告)号：US20230362840A1
公开(公告)日：2023-11-09
申请号：US18246013
申请日：2021-06-22
Inventor： Takashi IWAI , Hidetoshi SUZUKI , Ayako HORIUCHI
CPC classification number: H04W52/383 , H04W52/242
Abstract: This terminal comprises: a control circuit that controls transmission power of a sidelink on the basis of information about a power control method corresponding to the purpose of usage of a communication link at a base station; and a transmission circuit that carries out sidelink transmission in accordance with the control of the transmission power.
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公开(公告)号：US20230319797A1
公开(公告)日：2023-10-05
申请号：US18330118
申请日：2023-06-06
Inventor： Takashi IWAI , Daichi IMAMURA , Tomofumi TAKATA , Yoshihiko OGAWA
IPC: H04W72/0446 , H04J13/00 , H04J13/22 , H04W72/044 , H04W72/0453
CPC classification number: H04W72/0446 , H04J13/0062 , H04J13/22 , H04W72/0466 , H04J13/0055 , H04W72/0453
Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length and a standard sequence number in a step, setting a threshold value in accordance with an RB number in a step, setting a sequence length corresponding to RB number in a step, judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step, including a plurality of Zadoff-Chu sequences with a sequence number and a sequence length in a sequence group in a step if the judgment is positive, and allocating the sequence group to the same cell in a step.
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公开(公告)号：US20230247562A1
公开(公告)日：2023-08-03
申请号：US18004904
申请日：2021-06-03
Inventor： Tomofumi TAKATA , Takashi IWAI , Yoshio URABE , Lei HUANG , Rojan CHITRAKAR
Abstract: The objective of the present invention is to suppress interference on an access point as a result of terminal-to-terminal communication. This terminal is provided with: a control circuit which performs transmission power control of a second link with another terminal, on the basis of a parameter relating to the state of a first link with an access point; and a transmitting circuit which transmits signals in accordance with the transmission power control.
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公开(公告)号：US20230208481A1
公开(公告)日：2023-06-29
申请号：US18175835
申请日：2023-02-28
Inventor： Tadashi YOSHIDA , Ayako HORIUCHI , Takashi IWAI , Yoshihiko OGAWA , Akihiko NISHIO
CPC classification number: H04B7/0456 , H04W72/04 , H04L5/0051 , H04L5/0023 , H04B7/0871 , H04B7/0874 , H04B7/0691 , H04B7/0632 , H04B7/068 , H04B7/0689 , H04J13/00
Abstract: This invention is a transmission device capable of enhancing the reception characteristics of a terminal when employing transmit diversity using two antenna ports in an ePDCCH. In a base station (100) that transmits a reference signal to a terminal (200) using two antenna ports, a setting unit (102), on the basis of the reception quality of the terminal, sets as the aforementioned two antenna ports either a first antenna port pair for which DMRS (reference signals) do not undergo mutual code multiplexing, or a second antenna port pair for which the DMRS do undergo code multiplexing. A transmitter (109) transmits the DMRS from the two antenna ports set in the setting unit (102).
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