公开(公告)号：US11476906B2

公开(公告)日：2022-10-18

申请号：US17258560

申请日：2019-04-04

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tomoya Nunome ,  Hidetoshi Suzuki ,  Takashi Iwai ,  Ayako Horiuchi ,  Yoshihiko Ogawa

IPC: H04B7/00 ,  H04B7/0456 ,  H04W72/04

Abstract: Provided is a base station capable of appropriately applying precoding to a PDCCH. At the base station (100), a precoding control unit (105) sets a precoding granularity, which indicates a period in which the same precoding is used, to multiple control channels respectively disposed in different time resources. A transmission unit (108) transmits signals of the multiple control channels to a terminal (200) on the basis of the set precoding granularity.

公开(公告)号：US20210135819A1

公开(公告)日：2021-05-06

申请号：US17147158

申请日：2021-01-12

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Tomohumi Takata ,  Hidetoshi Suzuki ,  Ayako Horiuchi

IPC: H04L5/00 ,  H04L27/26

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.

公开(公告)号：US10985966B2

公开(公告)日：2021-04-20

申请号：US16320426

申请日：2016-08-09

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04W52/34 ,  H04L29/06 ,  H04W28/02

Abstract: A terminal is disclosed, which is capable of appropriately distributing transmission power when transmission time interval (TTI) lengths are different. A transmission-power determining section (211) determines transmission power for an uplink signal in a first TTI and an uplink signal in a second TTI shorter in TTI length than the first TTI, when the second TTI uplink signal occurs during a first interval in the first TTI, so as to keep the transmission power for the first reference signal and the first TTI uplink signal constant without allocating any transmission power to the second TTI uplink signal in the first interval, and to reduce the transmission power for the first TTI uplink signal to allocate transmission power to the second TTI uplink signal in a second interval which is subsequent to the first interval in the first TTI.

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：US10924239B2

公开(公告)日：2021-02-16

申请号：US16462934

申请日：2017-10-05

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Tomohumi Takata ,  Hidetoshi Suzuki ,  Ayako Horiuchi

IPC: H04L5/00 ,  H04L27/26

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.

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：US10454720B2

公开(公告)日：2019-10-22

申请号：US15724105

申请日：2017-10-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Daichi Imamura ,  Akihiko Nishio ,  Yoshihiko Ogawa ,  Kazuki Takeda

IPC: H04L25/02 ,  H04J13/22 ,  H04L5/00 ,  H04J11/00 ,  H04J13/00 ,  H04B7/024 ,  H04L25/03 ,  H04B7/0452 ,  H04W84/04

Abstract: A mobile terminal determine a reference signal sequence number based on a sequence length and a first selection reference value used for a first communication system that is different from a second communication system adapting a 3GPP release 10 or earlier. The first selection reference value is obtained from a sequence group number assigned to the terminal and different from a second selection reference value used for the second communication system. The mobile terminal generates a reference signal based on the determined reference signal sequence number and transmits the generated reference signal.

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：US09554387B2

公开(公告)日：2017-01-24

申请号：US14699374

申请日：2015-04-29

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Shinsuke Takaoka ,  Takashi Iwai

IPC: H04W52/36 ,  H04W72/04 ,  H04W52/26 ,  H04W52/24 ,  H04L5/00 ,  H04W52/16 ,  H04W52/34 ,  H04L1/00 ,  H04L1/16

CPC classification number: H04W72/0473 ,  H04L1/0031 ,  H04L1/1607 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/262 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W72/042

Abstract: Provided are a power headroom (PHR) calculation apparatus and method that can preclude the recognition mismatch in which the reference formats of different UL grants are recognized between a wireless communication terminal apparatus and a wireless communication base station apparatus. For the PHR calculation of a PUSCH in a CC in which no UL grant is present, a UL grant, which was used for calculating the PHR in another CC having the same subframe number as the PUSCH, is used. For example, as to a subframe number=#1, the UL grant of CC #0 is used for calculating the PHR of CC #2 in which no UL grant is present.

Abstract translation: 提供了一种功率余量（PHR）计算装置和方法，其可以排除在无线通信终端装置和无线通信基站装置之间识别出不同UL授权的参考格式的识别不匹配。 对于没有UL授权的CC中的PUSCH的PHR计算，使用用于计算具有与PUSCH相同的子帧号的另一个CC中的PHR的UL许可。 例如，对于子帧号=＃1，CC＃0的UL授权用于计算不存在UL授权的CC＃2的PHR。

公开(公告)号：US09313808B2

公开(公告)日：2016-04-12

申请号：US14303351

申请日：2014-06-12

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Daichi Imamura ,  Sadaki Futagi ,  Masaru Fukuoka ,  Takashi Iwai ,  Atsushi Matsumoto

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/04 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/042 ,  H04W74/00 ,  H04W74/006 ,  H04W74/008 ,  H04W74/0866

Abstract: Disclosed are a radio transmission device and a radio transmission method which reduce the RACH conflict ratio and improve the RACH detection characteristic. When the device and the method are used: as the number of signature numbers allocated for UE by the network side increases, the condition for allocating a signature by UE itself is mitigated and an expectation value which is a statistic average value of the RA quantity using the signature allocated by UE for itself is decreased; and as the number of signature numbers allocated for UE by the network side decreases, the condition for allocating a signature by UE itself is limited and an expectation value of the RA quantity using the signature allocated by UE for itself is increased.

Abstract translation: 公开了减少RACH冲突比并提高RACH检测特性的无线传输装置和无线传输方法。 当使用设备和方法时：随着网络侧为UE分配的签名号码的数量增加，UE本身分配签名的条件得到缓解，作为RA数量的统计平均值的期望值使用 UE自身分配的签名减少; 并且由于由网络侧为UE分配的签名号码的数量减少，所以UE本身分配签名的条件受到限制，并且使用UE自己分配的签名的RA数量的期望值增加。