公开(公告)号：US11923982B2

公开(公告)日：2024-03-05

申请号：US17976650

申请日：2022-10-28

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Tetsuya Yamamoto ,  Tomoya Nunome ,  Tomofumi Takata

IPC: H04L1/08 ,  H04W72/23

CPC classification number: H04L1/08 ,  H04W72/23

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.

公开(公告)号：US11659601B2

公开(公告)日：2023-05-23

申请号：US17256109

申请日：2019-10-02

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Hidetoshi Suzuki ,  Tomofumi Takata

IPC: H04L27/26 ,  H04W16/14 ,  H04W74/08

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.

公开(公告)号：US10979984B2

公开(公告)日：2021-04-13

申请号：US16634070

申请日：2017-08-10

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Lilei Wang ,  Hidetoshi Suzuki ,  Tomofumi Takata ,  Ayako Horiuchi

IPC: H04W52/36 ,  H04W52/32 ,  H04W24/10

Abstract: In a terminal (100), a PH calculator (105) calculates one or more power headrooms, each of which being calculated for each beam, and a radio transmitter (108) transmits the one or more power headrooms for a number of beams, the number being determined in accordance with a type of power headroom, or a trigger condition serving as a trigger for power headroom reporting.

公开(公告)号：US10660092B2

公开(公告)日：2020-05-19

申请号：US16163117

申请日：2018-10-17

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Yoshihiko Ogawa

IPC: H04W72/04 ,  H04J13/00 ,  H04J13/22

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 includes the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).

公开(公告)号：US10154484B2

公开(公告)日：2018-12-11

申请号：US14683962

申请日：2015-04-10

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Yoshihiko Ogawa

IPC: H04W72/04 ,  H04J13/00 ,  H04J13/22

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 includes the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).

公开(公告)号：US20150036646A1

公开(公告)日：2015-02-05

申请号：US14520170

申请日：2014-10-21

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tomofumi Takata ,  Daichi Imamura ,  Seigo Nakao ,  Sadaki Futagi ,  Takashi Iwai ,  Yoshihiko Ogawa

IPC: H04L25/02 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04B7/0632 ,  H04J11/00 ,  H04J13/0003 ,  H04J13/0055 ,  H04J13/0059 ,  H04J13/0074 ,  H04J13/10 ,  H04L5/0007 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/0208 ,  H04L25/0228 ,  H04L27/2695 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/082 ,  H04W88/02

Abstract: It is possible to provide a radio communication terminal device and a radio transmission method which can improve reception performance of a CQI and a reference signal. A phase table storage unit stores a phase table which correlates the amount of cyclic shift to complex coefficients {w1, w2} to be multiplied on the reference signal. A complex coefficient multiplication unit reads out a complex coefficient corresponding to the amount of cyclic shift indicated by resource allocation information, from the phase table storage unit and multiplies the read-out complex coefficient on the reference signal so as to change the phase relationship between the reference signals in a slot.

Abstract translation: 可以提供可以提高CQI的接收性能和参考信号的无线通信终端装置和无线发送方法。 相位表存储单元存储将循环移位量与要参考信号相乘的复系数{w1，w2}相关联的相位表。 复系数乘法单元从相位表存储单元读出与由资源分配信息指示的循环移位量相对应的复数系数，并将读出的复数系数与参考信号相乘，以便改变相关关系 参考信号在一个插槽。