公开(公告)号：US10349415B2

公开(公告)日：2019-07-09

申请号：US15372563

申请日：2016-12-08

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Takashi Iwai

IPC: H04W72/04 ,  H04W52/36 ,  H04W52/26 ,  H04W52/24 ,  H04L5/00 ,  H04W52/16 ,  H04W52/14 ,  H04W52/34 ,  H04L1/00 ,  H04L1/16

Abstract: Provided is an integrated circuit that calculates a power headroom (PHR) and 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.

公开(公告)号：US10313988B2

公开(公告)日：2019-06-04

申请号：US16019336

申请日：2018-06-26

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Takashi Iwai

IPC: H04W52/30 ,  H04W52/36 ,  H04W52/34 ,  H04W52/42 ,  H04L5/00 ,  H04W28/02 ,  H04W52/14

Abstract: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.

公开(公告)号：US20180323894A1

公开(公告)日：2018-11-08

申请号：US16040384

申请日：2018-07-19

Applicant: Sun Patent Trust

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

IPC: H04J11/00 ,  H04L5/00 ,  H04B7/06 ,  H04W72/12 ,  H04W72/04 ,  H04B7/0452 ,  H04J13/18 ,  H04J13/00 ,  H04W88/02 ,  H04W88/08

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.

公开(公告)号：US10075974B2

公开(公告)日：2018-09-11

申请号：US15698103

申请日：2017-09-07

Applicant: SUN PATENT TRUST

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

IPC: H04W4/00 ,  H04J11/00 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04W84/04 ,  H04W28/06

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 dusters to reduce the maximum value for the number of dusters 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.

公开(公告)号：US10057000B2

公开(公告)日：2018-08-21

申请号：US15816703

申请日：2017-11-17

Applicant: Sun Patent Trust

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

IPC: H04J11/00 ,  H04B7/06 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04B7/0452 ,  H04W88/08 ,  H04W88/02

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.

公开(公告)号：US10051583B2

公开(公告)日：2018-08-14

申请号：US15860381

申请日：2018-01-02

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Takashi Iwai

IPC: H04W52/30 ,  H04W52/36 ,  H04W28/02 ,  H04L5/00 ,  H04W52/42 ,  H04W52/34 ,  H04W52/14

Abstract: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.

公开(公告)号：US09853760B2

公开(公告)日：2017-12-26

申请号：US15358714

申请日：2016-11-22

Applicant: Sun Patent Trust

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

IPC: H04J11/00 ,  H04B7/0452 ,  H04B7/06 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08

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.

公开(公告)号：US09801210B2

公开(公告)日：2017-10-24

申请号：US15004524

申请日：2016-01-22

Applicant: SUN PATENT TRUST

Inventor： Akihiko Nishio ,  Masayuki Hoshino ,  Hidetoshi Suzuki ,  Takashi Iwai

IPC: H04W74/08 ,  H04W56/00 ,  H04J3/06 ,  H04J11/00 ,  H04B7/26 ,  H04W74/00 ,  H04W28/02

CPC classification number: H04W74/0833 ,  H04B7/2671 ,  H04J3/0635 ,  H04J11/0079 ,  H04J2011/0096 ,  H04W28/0236 ,  H04W56/0005 ,  H04W74/006

Abstract: In order to provide a transmission device and transmission method with which a response signal for random access preamble transmitted from a preamble transmission device is efficiently transmitted, setting unit in base station sets a first resource candidate group, which enables terminal capable of receiving a latch response transmitted by demodulation reference signal (DMRS) transmission to be selected, and a second resource candidate group, which enables terminal incapable of receiving a latch response transmitted by DMRS transmission but capable of receiving a latch response transmitted by cell-specific reference signal (CRS) transmission to be selected. Control unit selects DMRS transmission as the latch response transmission method when a resource in which latch preamble has been received is included in the first candidate group, but selects CRS transmission as the latch response transmission method when the resource is included in the second resource candidate group.

公开(公告)号：US20170230980A1

公开(公告)日：2017-08-10

申请号：US15498036

申请日：2017-04-26

Applicant: Sun Patent Trust

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

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/0037 ,  H04L5/0041 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0091 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/08

Abstract: A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus (100), a scheduling section (113) allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section (112) adjusts the set frequency allocation units set in the scheduling section (113) based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.

公开(公告)号：US20170041945A1

公开(公告)日：2017-02-09

申请号：US15258849

申请日：2016-09-07

Applicant: SUN PATENT TRUST

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

IPC: H04W72/12 ,  H04L27/26 ,  H04W72/04

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。