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公开(公告)号：US20240298316A1
公开(公告)日：2024-09-05
申请号：US18647519
申请日：2024-04-26
Inventor： Shotaro MAKI , Takashi IWAI , Tomofumi TAKATA
IPC: H04W72/1268 , H04L1/00 , H04W72/0453 , H04W72/20
CPC classification number: H04W72/1268 , H04L1/0051 , H04W72/0453 , H04W72/20
Abstract: Provided is a mobile station that can appropriately allocate resources in an unlicensed band. In the mobile station (200), on the basis of resource association between an uplink reference signal and another uplink signal different from the reference signal, a control unit (205) determines a frequency resource to be used for uplink transmission. A transmission unit (209) uses the frequency resource to transmit at least one of the reference signal and the other uplink signal.
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公开(公告)号：US20240291605A1
公开(公告)日：2024-08-29
申请号：US18654764
申请日：2024-05-03
Inventor： Takashi IWAI , Hidetoshi SUZUKI , Quan KUANG , Tomofumi TAKATA
IPC: H04L5/00
CPC classification number: H04L5/0039
Abstract: Provided is a terminal which appropriately transmits and receives signals when operating in an unlicensed band. A terminal (200) is provided with: a mapping unit (207) for allocating a signal to a resource on the basis of control information indicating allocation of groups among a plurality of groups obtained by grouping a plurality of blocks into which a frequency band has been divided, and allocation of resources in the blocks; and a transmitting unit (209) for transmitting the signal.
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公开(公告)号：US20240284254A1
公开(公告)日：2024-08-22
申请号：US18559777
申请日：2022-03-08
Inventor： Takashi IWAI , Tomofumi TAKATA , Yoshio URABE , Taichi MIURA
CPC classification number: H04W28/06 , H04L5/0053 , H04L69/22
Abstract: This base station comprises: a control circuit which generates a control signal for uplink transmission including, in a field common to a plurality of terminals, information pertaining to a version of the wireless communication specification and a subfield that is differently configured according to the version; and a transmission circuit which transmits the control signal.
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公开(公告)号：US20240155407A1
公开(公告)日：2024-05-09
申请号：US18546883
申请日：2021-12-07
Inventor： Takayuki NAKANO , Takashi IWAI , Yoshio URABE
Abstract: A base station equipped with: a receiver circuit that receives control information pertaining to sharing channel state information during coordinated communication between base stations; and a control circuit that, on the basis of the control information, controls the transmission of the channel state information to another base station.
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公开(公告)号：US20240030970A1
公开(公告)日：2024-01-25
申请号：US18477223
申请日：2023-09-28
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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Patent Agency Ranking
公开(公告)号：US20230371026A1
公开(公告)日：2023-11-16
申请号：US18245076
申请日：2021-07-29
Inventor： Takayuki NAKANO , Tomofumi TAKATA , Takashi IWAI , Hiroyuki KANAYA , Yoshio URABE
IPC: H04W72/20
CPC classification number: H04W72/20
Abstract: This base station comprises: a control circuit that determines a format for a control signal on the basis of the type of cooperative communication; and a transmission circuit that transmits, according to the format, the control signal to another base station.
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公开(公告)号：US20230261830A1
公开(公告)日：2023-08-17
申请号：US18004840
申请日：2021-06-22
Inventor： Takashi IWAI , Hidetoshi SUZUKI , Akihiko NISHIO , Ayako HORIUCHI , Tetsuya YAMAMOTO
IPC: H04L5/00
CPC classification number: H04L5/0051 , H04L5/0064 , H04L5/0007
Abstract: The present invention achieves an improvement in channel estimation accuracy using a reference signal. This terminal comprises: a reception circuit for receiving information indicating any of a plurality of candidates of resources for use in transmitting a reference signal; and a control circuit for controlling, on the basis of the information, an orthogonal sequence that is applied to the reference signal to be transmitted at a certain time.
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公开(公告)号：US20230209362A1
公开(公告)日：2023-06-29
申请号：US18167771
申请日：2023-02-10
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：US20220352930A1
公开(公告)日：2022-11-03
申请号：US17634082
申请日：2020-08-13
Inventor： Hiroyuki KANAYA , Yoshio URABE , Jun MINOTANI , Tomofumi TAKATA , Takashi IWAI , Takayuki NAKANO
Abstract: The present invention appropriately controls settings of feedbacks to a plurality of transmission sources. This wireless communication device comprises: a reception circuit for receiving a plurality of wireless signals transmitted by a plurality of transmission sources; and a control circuit for controlling settings of feedbacks with respect to the plurality of radio signals, depending on differences in reception quality of the plurality of wireless signals.
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公开(公告)号：US20220338261A1
公开(公告)日：2022-10-20
申请号：US17852238
申请日：2022-06-28
Inventor： Tomoya NUNOME , Takashi IWAI , Yoshio URABE
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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