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51.发明授权公开(公告)号：US12149392B2
公开(公告)日：2024-11-19
申请号：US18331717
申请日：2023-06-08
Inventor： Takashi Iwai , Tomohumi Takata , Hidetoshi Suzuki , Ayako Horiuchi
Abstract: In the multiple short sequence based SRS, multiple items of sequence data having a short sequence length corresponding to a partial band are used for transmitting SRS in discontinuous bands. In the multiple short sequence based SRS, a terminal specifies a frequency domain to be used for transmitting a reference signal using predetermined sequence data, applies a phase shift index associated with the specified frequency domain to the reference signal, and transmits the reference signal to which the phase shift index is applied by using the specified frequency domain.
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公开(公告)号：US12040903B2
公开(公告)日：2024-07-16
申请号：US17433554
申请日：2020-01-22
Inventor： Jun Minotani , Takashi Iwai , Tomofumi Takata , Yoshio Urabe
IPC: H04L29/06 , H04L1/1812 , H04W52/36 , 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：US12010050B2
公开(公告)日：2024-06-11
申请号：US17429264
申请日：2020-01-28
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：US11985698B2
公开(公告)日：2024-05-14
申请号：US18320011
申请日：2023-05-18
Inventor： Takashi Iwai , Yoshio Urabe , Tomohumi Takata
CPC classification number: H04W74/006 , H04W74/02 , H04W84/12
Abstract: In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.
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公开(公告)号：US11956833B2
公开(公告)日：2024-04-09
申请号：US18145768
申请日：2022-12-22
Inventor： Takashi Iwai , Tomohumi Takata , Atsushi Matsumoto
IPC: H04W74/08 , H04L5/00 , H04W72/1268 , H04W74/0833
CPC classification number: H04W74/0833 , H04L5/0039 , H04W72/1268
Abstract: A communication apparatus in the present disclosure comprises an AID generator, a Trigger frame generator, and a wireless transmitter/receiver. When a Trigger Type in a trigger frame is an RA trigger, the AID generator (103) generates, as information for an AID12 subfield, information that is different from an AID. The Trigger frame generator (104) generates a RA variant Trigger frame when the Trigger Type in the trigger frame is an RA trigger, and sets, in the AID12 subfield included in the RA variant Trigger frame, the information output from the AID generator (103). The wireless transmitter/receiver (106) transmits the Trigger frame, generated by the Trigger frame generator (104), to a terminal (200).
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Patent Agency Ranking
公开(公告)号：US11923982B2
公开(公告)日：2024-03-05
申请号：US17976650
申请日：2022-10-28
Inventor： Takashi Iwai , Tetsuya Yamamoto , Tomoya Nunome , Tomofumi Takata
Abstract: According to the present invention, a base station can dynamically change a repetition transmission method as appropriate. In a base station (100), a repetition control unit (103) determines a data repetition pattern for a terminal (200). A transmission unit (109) repeatedly transmits data (repetition transmission) on the basis of the repetition pattern. The data repetition pattern corresponds to control information to be reported to the terminal (200) by dynamic signaling.
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公开(公告)号：US11777750B2
公开(公告)日：2023-10-03
申请号：US17203441
申请日：2021-03-16
Inventor： Ayako Horiuchi , Hidetoshi Suzuki , Lilei Wang , Takashi Iwai
CPC classification number: H04L9/40 , H04W28/0273
Abstract: A terminal includes circuitry and a transmitter. The circuitry, in operation, determines a first transmission power for a first uplink signal and a second transmission power for a second uplink signal by prioritizing allocation of a transmission power to the second transmission power for the second uplink signal, responsive to, in a first transmission time interval (TTI) where the first uplink signal is transmitted, the second uplink signal being transmitted in a second TTI that is shorter than the first TTI. The transmitter, in operation, transmits the first uplink signal with the determined first transmission power and transmits the second uplink signal with the determined second transmission power.
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58.发明授权公开(公告)号：US11711251B2
公开(公告)日：2023-07-25
申请号：US17960001
申请日：2022-10-04
Inventor： Takashi Iwai , Tomohumi Takata , Hidetoshi Suzuki , Ayako Horiuchi
CPC classification number: H04L27/2613 , H04L5/0007 , H04L5/0048 , H04L5/0053
Abstract: In the multiple short sequence based SRS, multiple items of sequence data having a short sequence length corresponding to a partial band are used for transmitting SRS in discontinuous bands. In the multiple short sequence based SRS, a terminal specifies a frequency domain to be used for transmitting a reference signal using predetermined sequence data, applies a phase shift index associated with the specified frequency domain to the reference signal, and transmits the reference signal to which the phase shift index is applied by using the specified frequency domain.
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59.发明授权公开(公告)号：US11659601B2
公开(公告)日：2023-05-23
申请号：US17256109
申请日：2019-10-02
Inventor： Takashi Iwai , Hidetoshi Suzuki , Tomofumi Takata
CPC classification number: H04W74/0833 , H04L27/2607 , H04W16/14
Abstract: The present invention provides a terminal capable of suitably performing random access processing. In a terminal (100), a RACH resource determination unit (104) determines the format of a random access signal on the basis of a parameter related to the transmission of the random access signal, which includes a preamble part and a data part. A wireless transmission unit (109) transmits the random access signal on the basis of the format.
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公开(公告)号：US11558829B2
公开(公告)日：2023-01-17
申请号：US16965769
申请日：2019-01-09
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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