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公开(公告)号：US20230363013A1
公开(公告)日：2023-11-09
申请号：US18352624
申请日：2023-07-14
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , ATSUSHI MATSUMOTO
IPC: H04W74/08 , H04L5/00 , H04W72/1268
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 generates, as information for an AID12 subfield, information that is different from an AID. The Trigger frame generator 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. The wireless transmitter/receiver transmits the Trigger frame, generated by the Trigger frame generator, to a terminal.
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公开(公告)号：US20230292361A1
公开(公告)日：2023-09-14
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：US20200067670A1
公开(公告)日：2020-02-27
申请号：US16462934
申请日：2017-10-05
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：US20240349359A1
公开(公告)日：2024-10-17
申请号：US18757284
申请日：2024-06-27
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , ATSUSHI MATSUMOTO
IPC: H04W74/0833 , H04L5/00 , H04W72/1268
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 generates, as information for an AID12 subfield, information that is different from an AID. The Trigger frame generator 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. The wireless transmitter/receiver transmits the Trigger frame, generated by the Trigger frame generator, to a terminal.
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15.发明公开公开(公告)号：US20230291627A1
公开(公告)日：2023-09-14
申请号：US18319298
申请日：2023-05-17
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , QUAN KUANG
CPC classification number: H04L27/2613 , H04L27/26025 , H04J13/0062 , H04L5/0051
Abstract: When a plurality of the subcarrier spacing values are applied, a reference signal is generated by using a sequence having a sequence length corresponding to a first ratio of a first subcarrier spacing set for transmission data to the maximum settable subcarrier spacing. The sequence of the reference signal is mapped to a frequency resource at mapping intervals in accordance with a second ratio which is the reciprocal of the first ratio, and the transmission data and the reference signal are transmitted.
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Patent Agency Ranking
公开(公告)号：US20230129544A1
公开(公告)日：2023-04-27
申请号：US18145768
申请日：2022-12-22
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , ATSUSHI MATSUMOTO
IPC: H04W74/08 , H04L5/00 , 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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17.发明申请公开(公告)号：US20210392022A1
公开(公告)日：2021-12-16
申请号：US16322853
申请日：2017-06-20
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , QUAN KUANG
Abstract: When a plurality of the subcarrier spacing values are applied, a reference signal is generated by using a sequence having a sequence length corresponding to a first ratio of a first subcarrier spacing set for transmission data to the maximum settable subcarrier spacing. The sequence of the reference signal is mapped to a frequency resource at mapping intervals in accordance with a second ratio which is the reciprocal of the first ratio, and the transmission data and the reference signal are transmitted.
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公开(公告)号：US20210234654A1
公开(公告)日：2021-07-29
申请号：US17230831
申请日：2021-04-14
Inventor： TOMOHUMI TAKATA , TAKASHI IWAI , HIDETOSHI SUZUKI , AYAKO HORIUCHI , JOACHIM LOEHR , TETSUYA YAMAMOTO
Abstract: A base station (100, 300) is provided with a transmitter and a receiver. The transmitter (109) transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver (111) receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.
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公开(公告)号：US20200083997A1
公开(公告)日：2020-03-12
申请号：US16494792
申请日：2018-03-08
Inventor： TOMOHUMI TAKATA , TAKASHI IWAI , HIDETOSHI SUZUKI , AYAKO HORIUCHI
Abstract: A terminal includes: a circuit that, on the basis of a parameter of a first frequency resource assigned a reference signal (SRS) and a parameter of a second frequency resource, adjacent to the first frequency resource, that uses a subcarrier spacing (SCS) which is different from that used by the first frequency resource, punctures the reference signal at a boundary between the first frequency resource and the second frequency resource; and a radio transmitter that transmits the reference signal thus punctured.
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公开(公告)号：US20190387549A1
公开(公告)日：2019-12-19
申请号：US16464658
申请日：2017-12-07
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , ATSUSHI MATSUMOTO
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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