公开(公告)号：US20250030496A1

公开(公告)日：2025-01-23

申请号：US18908511

申请日：2024-10-07

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 ,  H04W72/23 ,  H04W72/54 ,  H04W88/02 ,  H04W88/08

Abstract: A terminal apparatus includes circuitry and a transmitter. The circuitry, in operation, generates a reference signal using a cyclic shift value and an orthogonal sequence, which are associated with each other. The orthogonal sequence is one of two orthogonal sequences corresponding to a first orthogonal sequence [1, 1] and a second orthogonal sequence [1, −1]. The cyclic shift value is one of 12 cyclic shift values ranging from 0 to 11. The transmitter, in operation, transmits the reference signal multiplexed with a data signal. Two of the cyclic shift values having a difference of 6 are respectively associated with the two orthogonal sequences.

公开(公告)号：US20240114377A1

公开(公告)日：2024-04-04

申请号：US18539013

申请日：2023-12-13

Applicant: Sun Patent Trust

Inventor： Yasuaki YUDA ,  Seigo NAKAO ,  Ayako HORIUCHI ,  Daichi IMAMURA ,  Masayuki HOSHINO ,  Atsushi SUMASU

IPC: H04W24/10 ,  H04L1/00 ,  H04L1/20 ,  H04L5/00 ,  H04L12/18

CPC classification number: H04W24/10 ,  H04L1/0026 ,  H04L1/20 ,  H04L5/0057 ,  H04L12/189 ,  H04L27/28

Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.

公开(公告)号：US20230292220A1

公开(公告)日：2023-09-14

申请号：US18322424

申请日：2023-05-23

Applicant: Sun Patent Trust

Inventor： Yoshihiko OGAWA ,  Seigo NAKAO ,  Akihiko NISHIO ,  Masayuki HOSHINO ,  Daichi IMAMURA ,  Atsushi SUMASU

IPC: H04W48/02 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/1867 ,  H04L5/00 ,  H04L1/1829 ,  H04L1/1607 ,  H04W28/04 ,  H04W48/12

CPC classification number: H04W48/02 ,  H04B7/0413 ,  H04L1/0031 ,  H04L1/1893 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0057 ,  H04L1/0026 ,  H04L1/1861 ,  H04L1/1671 ,  H04L5/0055 ,  H04W28/04 ,  H04W48/12

Abstract: An integrated circuit includes circuitry, which, in operation, controls transmitting downlink data to a terminal apparatus; receiving a plurality of transport blocks which are transmitted in a same time period using a same frequency band in a spatial multiplexing scheme, wherein a same acknowledgement information (ACK/NACK) relating to an error detection result of the downlink data is scrambled with different scrambling schemes respectively for the plurality of transport blocks and the respectively scrambled ACK/NACK is multiplexed with data on respective ones of the plurality of transport blocks, and channel quality information (CQI) of a downlink channel is multiplexed with the data on only one transport block of the plurality of transport blocks by the terminal apparatus; and extracting the ACK/NACK and the CQI from the received plurality of transport blocks.