公开(公告)号：US20180048449A1

公开(公告)日：2018-02-15

申请号：US15664689

申请日：2017-07-31

Applicant: Sun Patent Trust

Inventor： Yoshihiko OGAWA ,  Akihiko NISHIO ,  Seigo NAKAO

IPC: H04L5/00 ,  H04L1/16 ,  H04W72/04 ,  H04L1/18 ,  H04L27/26

CPC classification number: H04L5/0053 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/2636 ,  H04W72/0406 ,  H04W72/0413

Abstract: This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal (200), which uses a plurality of different layers to transmit two code words in which control information is placed, comprises: a resource amount determining unit (204) that determines, based on a lower one of the encoding rates of the two code words or based on the average value of the reciprocals of the encoding rates of the two code words, resource amounts of control information in the respective ones of the plurality of layers; and a transport signal forming unit (205) that places, in the two code words, the control information modulated by use of the resource amounts, thereby forming a transport signal.

公开(公告)号：US20170070964A1

公开(公告)日：2017-03-09

申请号：US15355169

申请日：2016-11-18

Applicant: Sun Patent Trust

Inventor： Takashi IWAI ,  Daichi IMAMURA ,  Akihiko NISHIO ,  Yoshihiko OGAWA ,  Shinsuke TAKAOKA

IPC: H04W52/32 ,  H04L5/00 ,  H04W52/14

CPC classification number: H04W52/241 ,  H04L5/0048 ,  H04L5/0051 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W72/0473

Abstract: Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.

Abstract translation: 本发明公开了一种无线通信装置，其能够抑制基站中的TPC误差引起的SINR测量精度的劣化，能够抑制终端的功耗的增加。 终端通过向第一信号的发送功率添加偏移来控制第二信号的发送功率; 偏移设定单元响应于在前一次发送的第三信号与此次发送的第二信号之间的传输时间间隔来设置偏移校正值; 发送功率控制单元使用校正值来控制第二信号的发送功率。

公开(公告)号：US20170006592A1

公开(公告)日：2017-01-05

申请号：US15264940

申请日：2016-09-14

Applicant: Sun Patent Trust

Inventor： Masayuki HOSHINO ,  Akihiko NISHIO ,  Seigo NAKAO ,  Daichi IMAMURA

IPC: H04W72/04 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04W72/044 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/1829 ,  H04L1/20 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0094 ,  H04L25/0224 ,  H04W72/0406 ,  H04W72/1215

Abstract: Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information.

Abstract translation: 在分别发送用于第一和第二通信系统的第一和第二参考信号的情况下，可以最小化影响仅与第一通信系统兼容的接收装置的资源，并且可以防止吞吐量恶化。 作为用于LTE-A的参考信号CSI-RS的资源，使用在频域中定义的资源单位RB /子帧的时间方向上的后半个符号，并且将CSI-RS分配在 直到特定RB /子帧的最后两个符号或最后一个符号等，并且当用于LTE的参考信号4RS被发送到除了发送用于LTE-A的CSI-RS之外的接收装置时发送 。 接收装置基于CSI-RS分配信息接收在RB /子帧的后半个符号中分配的CSI-RS，通过使用该CSI-RS来测量信道质量，并发送并报告反馈信息。

公开(公告)号：US20160255635A1

公开(公告)日：2016-09-01

申请号：US15149601

申请日：2016-05-09

Applicant: SUN PATENT TRUST

Inventor： Yoshihiko OGAWA ,  Seigo NAKAO ,  Daichi IMAMURA ,  Akihiko NISHIO ,  Masayuki HOSHINO ,  Katsuhiko HIRAMATSU ,  Kenichi MIYOSHI ,  Yasuaki YUDA ,  Sadaki FUTAGI ,  Takashi IWAI

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L1/0042 ,  H04L1/0061 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0048 ,  H04L25/0226 ,  H04L25/03159 ,  H04L27/2602

Abstract: Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.

Abstract translation: 公开了一种无线通信基站装置和分割数确定方法，无论来自无线通信终端装置的发送信号的频域中的分割数如何，都可以在维持信道估计精度的同时提高频率分集效应。 确定单元确定来自无线通信终端设备的发送信号的频域中的分割数。 这里，确定单元随着发送信号中包括的导频块的数量的增加，增加来自无线通信终端装置的发送信号的频域的分割数。 此外，调度单元根据由确定单元确定的分割数来调度分配的发送信号的频率资源。