公开(公告)号：US20220312420A1

公开(公告)日：2022-09-29

申请号：US17839385

申请日：2022-06-13

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 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

Abstract: Disclosed are a wireless communication base station device and a division number determination method that improves 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.

公开(公告)号：US20240171335A1

公开(公告)日：2024-05-23

申请号：US18424484

申请日：2024-01-26

Applicant: Sun Patent Trust

Inventor： Seigo NAKAO ,  Masayuki HOSHINO ,  Atsushi SUMASU ,  Katsuhiko HIRAMATSU

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/06 ,  H04L25/02 ,  H04L27/26 ,  H04W74/00

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0682 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2626 ,  H04W74/002 ,  H04W88/02

Abstract: Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit which maps a data signal after modulation to a virtual antenna and a virtual antenna; a phase inversion unit which inverts the phase of S0 transmitted from an antenna port in synchronization with a phase inversion unit between the odd-number slot and the even-number slot; the phase inversion unit which inverts the phase of R0 transmitted from the antenna port; a phase inversion unit which inverts the phase of S1 transmitted from an antenna port in synchronization with a phase inversion unit; and the phase inversion unit which inverts the phase of R1 transmitted from an antenna port.

公开(公告)号：US20200252935A1

公开(公告)日：2020-08-06

申请号：US16853001

申请日：2020-04-20

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 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

Abstract: Disclosed are a wireless communication base station device and a division number determination method that improves 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.

公开(公告)号：US20180343657A1

公开(公告)日：2018-11-29

申请号：US16053256

申请日：2018-08-02

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 ,  H04L27/26

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.

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。