公开(公告)号：US10743315B2

公开(公告)日：2020-08-11

申请号：US16596199

申请日：2019-10-08

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Masayuki Hoshino ,  Kenichi Miyoshi

IPC: H04W72/04 ,  G06F17/14 ,  H04J1/00 ,  H04J4/00 ,  H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04W88/08

Abstract: A communication system includes a communication apparatus and a base station. The communication apparatus includes a Discrete Fourier Transform (DFT) transformer which transforms a time-domain signal into a frequency-domain signal with a DFT size that is a product of powers of a plurality of values; a mapper which maps the frequency-domain signal on a plurality of frequency bands, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands; and a signal generator which generates a single carrier-frequency division multiple access (SC-FDMA) time-domain signal from the mapped signal. The base station includes a receiver which receives the SC-FDMA time-domain signal; a combiner which generates the frequency-domain signal from the SC-FDMA time-domain signal; and a transformer which transforms the frequency-domain signal into the time-domain signal with an inverse Discrete Fourier Transform (IDFT) having the DFT size.

公开(公告)号：US10708886B2

公开(公告)日：2020-07-07

申请号：US16284945

申请日：2019-02-25

Applicant: Sun Patent Trust

Inventor： Yasuaki Yuda ,  Seigo Nakao ,  Ayako Horiuchi ,  Akihiko Nishio ,  Daichi Imamura ,  Kenichi Miyoshi

IPC: H04W72/04 ,  H04W72/00 ,  H04W24/10 ,  H04W24/08 ,  H04L5/00 ,  H04W72/08 ,  H04B17/318 ,  H04B17/345 ,  H04W36/00

Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.

公开(公告)号：US20180317229A1

公开(公告)日：2018-11-01

申请号：US16012519

申请日：2018-06-19

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Masayuki Hoshino ,  Kenichi Miyoshi

IPC: H04W72/04 ,  H04L27/26 ,  H04J1/00 ,  G06F17/14 ,  H04L5/00 ,  H04J11/00 ,  H04J4/00 ,  H04W88/08

CPC classification number: H04W72/0453 ,  G06F17/141 ,  H04J1/00 ,  H04J4/005 ,  H04J11/00 ,  H04L5/0041 ,  H04L27/2602 ,  H04L27/2628 ,  H04L27/2636 ,  H04W88/08 ,  Y10S370/916

Abstract: A communication apparatus includes a receiver, a combiner, and a transformer. The receiver receives signals mapped on plural frequency bands. A size of at least one of the frequency bands is a multiple of a product of two or more powers of prime numbers, which are integer numbers greater than 1 and are different from each other. An exponent for at least one of the prime numbers is an integer greater than 1. The combiner combines the received signals into a combined signal. The transformer transforms the combined signal in a frequency domain into a symbol sequence in a time domain with an inverse discrete Fourier transform (IDFT) having a size that is a product of powers of plural values. The values are integer numbers greater than 1 and are different from each other. An exponent for at least one of the values is an integer greater than 1.

公开(公告)号：US20180270040A1

公开(公告)日：2018-09-20

申请号：US15988779

申请日：2018-05-24

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Daichi Imamura ,  Kenichi Miyoshi

IPC: H04L5/00 ,  H04W72/08 ,  H04J11/00 ,  H04B7/024 ,  H04W72/04 ,  H04W48/00 ,  H04W24/02 ,  H04L25/03 ,  H04L1/00 ,  H04W28/06 ,  H04W92/20

CPC classification number: H04L5/0073 ,  H04B7/024 ,  H04J11/0053 ,  H04J11/0079 ,  H04L1/00 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0082 ,  H04L25/03343 ,  H04L25/03904 ,  H04L25/03955 ,  H04L2025/03777 ,  H04W24/02 ,  H04W28/06 ,  H04W48/00 ,  H04W72/042 ,  H04W72/08 ,  H04W92/20

Abstract: A communication apparatus comprises a generator that generates frequency resource position information corresponding to a first information which is based on the communication quality information received from user equipments, the frequency resource position information indicating validity or invalidity of the first information for each frequency resource, and a transmitter that transmits the first information, the frequency resource position information and a cell ID which the frequency resource position is applied, to another communication apparatus via a backhaul.

公开(公告)号：US10028281B2

公开(公告)日：2018-07-17

申请号：US15678948

申请日：2017-08-16

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Masayuki Hoshino ,  Kenichi Miyoshi

IPC: H04W72/04 ,  H04J11/00 ,  H04L27/26 ,  H04J4/00 ,  H04J1/00 ,  H04L5/00 ,  G06F17/14 ,  H04W88/08

CPC classification number: H04W72/0453 ,  G06F17/141 ,  H04J1/00 ,  H04J4/005 ,  H04J11/00 ,  H04L5/0041 ,  H04L27/2602 ,  H04L27/2628 ,  H04L27/2636 ,  H04W88/08 ,  Y10S370/916

Abstract: A communication apparatus includes a receiver, a combiner, and a transformer. The receiver receives signals mapped on plural frequency bands. A size of at least one of the frequency bands is a multiple of a product of two or more powers of prime numbers, which are integer numbers greater than 1 and are different from each other. An exponent for at least one of the prime numbers is an integer greater than 1. The combiner combines the received signals into a combined signal. The transformer transforms the combined signal in a frequency domain into a symbol sequence in a time domain with an inverse discrete Fourier transform (IDFT) having a size that is a product of powers of plural values. The values are integer numbers greater than 1 and are different from each other. An exponent for at least one of the values is an integer greater than 1.

公开(公告)号：US09844027B2

公开(公告)日：2017-12-12

申请号：US15383818

申请日：2016-12-19

Applicant: Sun Patent Trust

Inventor： Yasuaki Yuda ,  Seigo Nakao ,  Ayako Horiuchi ,  Akihiko Nishio ,  Daichi Imamura ,  Kenichi Miyoshi

IPC: H04W24/00 ,  H04W72/04 ,  H04W72/00 ,  H04W72/08 ,  H04W24/08

CPC classification number: H04W72/005 ,  H04B17/318 ,  H04B17/345 ,  H04L5/0073 ,  H04W24/08 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/085

Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.

公开(公告)号：US20170099651A1

公开(公告)日：2017-04-06

申请号：US15383818

申请日：2016-12-19

Applicant: Sun Patent Trust

Inventor： Yasuaki Yuda ,  Seigo Nakao ,  Ayako Horiuchi ,  Akihiko Nishio ,  Daichi Imamura ,  Kenichi Miyoshi

IPC: H04W72/00 ,  H04W72/08 ,  H04W24/08 ,  H04W72/04

CPC classification number: H04W72/005 ,  H04B17/318 ,  H04B17/345 ,  H04L5/0073 ,  H04W24/08 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/085

Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.