公开(公告)号：US11259299B2

公开(公告)日：2022-02-22

申请号：US16847133

申请日：2020-04-13

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

公开(公告)号：US09894682B2

公开(公告)日：2018-02-13

申请号：US13951371

申请日：2013-07-25

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yoshihiko Ogawa ,  Daichi Imamura ,  Ayako Horiuchi ,  Sadaki Futagi

IPC: H04W72/12 ,  H04L5/00 ,  H04L5/02 ,  H04W88/08

CPC classification number: H04W72/1289 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/023 ,  H04W88/085

Abstract: A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section divides the RBs into the RB groups, the RB control unit performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.

公开(公告)号：US20160014788A1

公开(公告)日：2016-01-14

申请号：US14858333

申请日：2015-09-18

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04W72/08 ,  H04J13/00 ,  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.

公开(公告)号：US20150381257A1

公开(公告)日：2015-12-31

申请号：US14848149

申请日：2015-09-08

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yoshihiko Ogawa ,  Akihiko Nishio ,  Takashi Iwai ,  Seigo Nakao ,  Daichi Imamura ,  Atsushi Sumasu

IPC: H04B7/06 ,  H04B7/04 ,  H04J13/18 ,  H04J11/00 ,  H04J13/00

CPC classification number: H04J11/003 ,  H04B7/0452 ,  H04B7/0689 ,  H04J13/0048 ,  H04J13/18 ,  H04L5/005 ,  H04W72/042 ,  H04W72/1226 ,  H04W88/02 ,  H04W88/08

Abstract: A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus: a pilot information deciding unit decides, based on allocation control information, Walsh sequences of the respective ones of first and second stream groups at least one of which includes a plurality of streams; and a pilot signal generating unit forms a transport signal by using the decided Walsh sequences to spread the streams included in the first and second stream groups. During this, Walsh sequences orthogonal to each other are established in the first and second stream groups, and users are allocated on a stream group-by-stream group basis.

Abstract translation: 公开了一种终端装置，其中即使在同时应用SU-MIMO和MU-MIMO的情况下，同一终端使用的多个导频信号中的序列间干扰也可以被抑制到较低的值，而 终端之间的导频信号中的序列间干扰可以减少。 在该终端装置中：导频信息决定部基于分配控制信息，决定第一和第二流组中的至少一个流中的至少一个包括多个流的沃尔什序列; 并且导频信号生成单元通过使用所确定的沃尔什序列形成传输信号，以扩展包括在第一和第二流组中的流。 在此期间，在第一和第二流组中建立彼此正交的沃尔什序列，并且以流逐群分组为基础分配用户。

公开(公告)号：US09184891B2

公开(公告)日：2015-11-10

申请号：US14673069

申请日：2015-03-30

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Yoshihiko Ogawa

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04B1/713 ,  H04L5/0041 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/0224 ,  H04W24/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/085 ,  H04W88/08

Abstract: A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus (100), an allocation setting unit (106), which sets the reception band of an SRS at an SRS extraction unit (103) and sets the units of frequency allocation (RBG) at a CQI estimation unit (104) and allocation unit (105), matches the frequency position at the end of the SRS reception band to the frequency position at the end of any of the units of frequency allocation and sets the reception bandwidth of the reference signal to a natural number multiple of the bandwidth of the unit of frequency allocation. In the terminal apparatus (200), a band information setting unit (204), which sets the transmission band and units of frequency allocation (RBG), matches the frequency position at the end of the transmission band to the frequency position at the end of any of the units of frequency allocation and sets the transmission bandwidth of the SRS to a natural number multiple of the bandwidth of the unit of frequency allocation.

公开(公告)号：US09166666B2

公开(公告)日：2015-10-20

申请号：US14547042

申请日：2014-11-18

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yoshihiko Ogawa ,  Akihiko Nishio ,  Takashi Iwai ,  Seigo Nakao ,  Daichi Imamura ,  Atsushi Sumasu

IPC: H04J11/00 ,  H04B7/06 ,  H04J13/00 ,  H04J13/18 ,  H04B7/04

CPC classification number: H04J11/003 ,  H04B7/0452 ,  H04B7/0689 ,  H04J13/0048 ,  H04J13/18 ,  H04L5/005 ,  H04W72/042 ,  H04W72/1226 ,  H04W88/02 ,  H04W88/08

Abstract: A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus: a pilot information deciding unit decides, based on allocation control information, Walsh sequences of the respective ones of first and second stream groups at least one of which includes a plurality of streams; and a pilot signal generating unit forms a transport signal by using the decided Walsh sequences to spread the streams included in the first and second stream groups. During this, Walsh sequences orthogonal to each other are established in the first and second stream groups, and users are allocated on a stream group-by-stream group basis.

Abstract translation: 公开了一种终端装置，其中即使在同时应用SU-MIMO和MU-MIMO的情况下，同一终端使用的多个导频信号中的序列间干扰也可以被抑制到较低的值，而 终端之间的导频信号中的序列间干扰可以减少。 在该终端装置中：导频信息决定部基于分配控制信息，决定第一和第二流组中的至少一个流中的至少一个包括多个流的沃尔什序列; 并且导频信号生成单元通过使用所确定的沃尔什序列形成传输信号，以扩展包括在第一和第二流组中的流。 在此期间，在第一和第二流组中建立彼此正交的沃尔什序列，并且以流逐群分组为基础分配用户。

公开(公告)号：US20150270941A1

公开(公告)日：2015-09-24

申请号：US14673069

申请日：2015-03-30

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Yoshihiko Ogawa

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B1/713 ,  H04L5/0041 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/0224 ,  H04W24/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/085 ,  H04W88/08

Abstract: A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus (100), an allocation setting unit (106), which sets the reception band of an SRS at an SRS extraction unit (103) and sets the units of frequency allocation (RBG) at a CQI estimation unit (104) and allocation unit (105), matches the frequency position at the end of the SRS reception band to the frequency position at the end of any of the units of frequency allocation and sets the reception bandwidth of the reference signal to a natural number multiple of the bandwidth of the unit of frequency allocation. In the terminal apparatus (200), a band information setting unit (204), which sets the transmission band and units of frequency allocation (RBG), matches the frequency position at the end of the transmission band to the frequency position at the end of any of the units of frequency allocation and sets the transmission bandwidth of the SRS to a natural number multiple of the bandwidth of the unit of frequency allocation.

Abstract translation: 一种无线基站装置和无线终端装置，具有能够防止在上行链路线路中使用非连续波段发送和SRS发送时信道估计的精度降低的结构。 在基站装置（100）中，分配设定单元（106）在SRS提取单元（103）设置SRS的接收频带，并将CQI估计单元（104）中的频率分配单位（RBG） ）和分配单元（105）将SRS接收频带的结束处的频率位置与频率分配的任何单位的结束处的频率位置相匹配，并将参考信号的接收带宽设定为 频率分配单位的带宽。 在终端装置（200）中，设定发送频带和频率分配单位（RBG）的频带信息设定单元（204）将发送频带结束时的频率位置与频带位置结束时的频率位置相匹配 任何频率分配单元，并将SRS的传输带宽设置为频率分配单位带宽的自然数倍。

公开(公告)号：US09125198B2

公开(公告)日：2015-09-01

申请号：US14227987

申请日：2014-03-27

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yoshihiko Ogawa ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Masayuki Hoshino ,  Takashi Iwai ,  Sadaki Futagi

IPC: H04W72/04 ,  H04L5/00 ,  H04W28/06 ,  H04W72/12

CPC classification number: H04W72/1289 ,  H04L1/00 ,  H04L1/0004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0041 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0092 ,  H04L27/2601 ,  H04L27/2607 ,  H04L27/2614 ,  H04L27/2636 ,  H04L27/2647 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/0466 ,  H04W72/0473 ,  H04W72/12 ,  H04W72/1268 ,  H04W84/042

Abstract: A wireless communication base station device, terminal device, and method have reduced signaling while maintaining high scheduling gain. A judgment unit pre-stores a correspondence between the number of code words and the number of clusters to reduce the maximum value for the number of clusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality, and the maximum value for the number of clusters that is output by the judgment unit, a scheduling unit schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters.

Abstract translation: 无线通信基站装置，终端装置和方法在维持高调度增益的同时减少了信令。 判断单元预先存储代码字数与簇数之间的对应关系，以减少分配给每个终端的簇的数量的最大值，因为码字数增加，从而确定数字的最大值 基于所获取的代码字的数量。 基于来自终端的发送信号的码字的数量，接收质量的估计值和由判断单元输出的群集数的最大值，调度单元调度发送信号的分配 由每个终端发送到传输频带频率（频率资源），以便不超过簇的数量的最大值。

公开(公告)号：US20150180554A1

公开(公告)日：2015-06-25

申请号：US14639466

申请日：2015-03-05

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Akihiko Nishio ,  Yoshihiko Ogawa ,  Seigo Nakao ,  Masayuki Hoshino

IPC: H04B7/02 ,  H04L5/00 ,  H04L12/801

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/0023 ,  H04J11/0026 ,  H04J11/0053 ,  H04J11/0056 ,  H04J13/0062 ,  H04L5/0032 ,  H04L5/0035 ,  H04L23/02 ,  H04L27/2613 ,  H04L47/34

Abstract: Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit (102) sets the cell IDs of all cells in the CoMP set in a cell selection unit (104), and a serving cell setting unit (103) sets the cell ID of the serving cell in the cell selection unit (104). The cell selection unit (104) selects the cell ID having a number closest to the cell ID of the serving cell from the cells in the CoMP set. A sequence information calculation unit (106) derives a sequence group number from the selected cell ID, and the sequence information calculation unit (106) calculates a sequence number from the derived sequence group number and a transmission bandwidth of the DM-RS.

Abstract translation: 提供了可以减少CoMP终端和非CoMP终端的DM-RS的码间干扰的无线通信终端装置和无线发送方法。 CoMP集设定部（102）在小区选择部（104）中设定CoMP集合中的所有小区的小区ID，服务小区设定部（103）将小区选择部中的服务小区的小区ID （104）。 小区选择单元（104）从CoMP集合中的小区中选择具有最接近服务小区的小区ID的号码的小区ID。 序列信息计算单元（106）从所选择的小区ID中导出序列组号，序列信息计算单元（106）从导出序列组号和DM-RS的传输带宽计算序列号。

公开(公告)号：US09031029B2

公开(公告)日：2015-05-12

申请号：US14155874

申请日：2014-01-15

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Iwai ,  Akihiko Nishio ,  Yoshihiko Ogawa ,  Seigo Nakao ,  Masayuki Hoshino

IPC: H04W4/00 ,  H04B7/02 ,  H04J11/00 ,  H04J13/00 ,  H04L5/00 ,  H04L23/02 ,  H04B7/04 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/0023 ,  H04J11/0026 ,  H04J11/0053 ,  H04J11/0056 ,  H04J13/0062 ,  H04L5/0032 ,  H04L5/0035 ,  H04L23/02 ,  H04L27/2613 ,  H04L47/34

Abstract: Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit (102) sets the cell IDs of all cells in the CoMP set in a cell selection unit (104), and a serving cell setting unit (103) sets the cell ID of the serving cell in the cell selection unit (104). The cell selection unit (104) selects the cell ID having a number closest to the cell ID of the serving cell from the cells in the CoMP set. A sequence information calculation unit (106) derives a sequence group number from the selected cell ID, and the sequence information calculation unit (106) calculates a sequence number from the derived sequence group number and a transmission bandwidth of the DM-RS.

Abstract translation: 提供了可以减少CoMP终端和非CoMP终端的DM-RS的码间干扰的无线通信终端装置和无线发送方法。 CoMP集设定部（102）在小区选择部（104）中设定CoMP集合中的所有小区的小区ID，服务小区设定部（103）将小区选择部中的服务小区的小区ID （104）。 小区选择单元（104）从CoMP集合中的小区中选择具有最接近服务小区的小区ID的号码的小区ID。 序列信息计算单元（106）从所选择的小区ID中导出序列组号，序列信息计算单元（106）从导出序列组号和DM-RS的传输带宽计算序列号。