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11.发明申请公开(公告)号：US20190191436A1
公开(公告)日：2019-06-20
申请号：US16276404
申请日：2019-02-14
Applicant: NEC CORPORATION
Inventor： Takamichi Inoue , Kenji Koyanagi , Le Liu , Yoshikazu Kakura
CPC classification number: H04W72/0453 , H04L5/0007 , H04L5/0037 , H04L5/0041 , H04L5/0044 , H04L5/0048 , H04L5/0057 , H04L5/006 , H04L5/0064 , H04L5/0094 , H04L27/2614 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W88/02 , H04W88/08 , H05K999/99
Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
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公开(公告)号：US10148395B2
公开(公告)日：2018-12-04
申请号：US15501666
申请日：2015-04-28
Applicant: NEC Corporation
Inventor： Yoshikazu Kakura
Abstract: A radio communication system according to the present invention includes a base station (10) configured to start or stop a data transmission process according to presence/absence of a terminal with which the base station (10) communicates, a base station (20) whose communication area includes a place where a terminal (40) is present, the terminal (40) being affected by interference when the data transmission process is performed in the base station (10), and a control device (30) configured to control a start timing of the data transmission process in the base station (10) and transmit information about the start timing of the data transmission process in the base station (10) to the base station (20).
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13.发明授权公开(公告)号：US09781618B2
公开(公告)日：2017-10-03
申请号：US15199264
申请日：2016-06-30
Applicant: NEC Corporation
Inventor： Hisashi Futaki , Hiroaki Aminaka , Hiroto Sugahara , Yoshikazu Kakura , Kazushi Muraoka
IPC: H04W72/00 , H04W24/08 , H04W16/14 , H04W88/02 , H04B17/309 , H04W72/04 , H04B17/24 , H04B17/318 , H04B17/382 , H04W24/10 , H04L5/00 , H04W72/08 , H04W76/04 , H04W88/06 , H04W88/10
CPC classification number: H04W24/08 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/382 , H04L5/0048 , H04W16/14 , H04W24/10 , H04W72/0453 , H04W72/085 , H04W76/27 , H04W88/02 , H04W88/06 , H04W88/10
Abstract: A radio terminal (2) is provided that can be used in a radio communication system (100) and can communicate with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
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公开(公告)号：US09743410B2
公开(公告)日：2017-08-22
申请号：US15282856
申请日：2016-09-30
Applicant: NEC Corporation
Inventor： Takamichi Inoue , Kenji Koyanagi , Le Liu , Yoshikazu Kakura
CPC classification number: H04W72/0453 , H04L5/0007 , H04L5/0037 , H04L5/0041 , H04L5/0044 , H04L5/0048 , H04L5/0057 , H04L5/006 , H04L5/0064 , H04L5/0094 , H04L27/2614 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W88/02 , H04W88/08
Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
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15.发明授权公开(公告)号：US09713130B2
公开(公告)日：2017-07-18
申请号：US15172447
申请日：2016-06-03
Applicant: NEC CORPORATION
Inventor： Kenji Koyanagi , Takamichi Inoue , Le Liu , Yoshikazu Kakura
CPC classification number: H04W72/0413 , H04L5/0039 , H04L5/0094 , H04W28/06 , H04W72/042 , H04W72/0453
Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.
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Patent Agency Ranking
16.发明授权Radio terminal, radio station, radio communication system, and methods implemented therein 有权无线电终端，无线电台，无线电通信系统及其中实施的方法公开(公告)号：US09420482B2
公开(公告)日：2016-08-16
申请号：US14396268
申请日：2013-01-11
Applicant: NEC Corporation
Inventor： Hisashi Futaki , Hiroaki Aminaka , Hiroto Sugahara , Yoshikazu Kakura , Kazushi Muraoka
IPC: H04W72/00 , H04W24/08 , H04W16/14 , H04W88/02 , H04B17/309 , H04W72/04 , H04B17/24 , H04B17/318 , H04B17/382 , H04W88/06 , H04W88/10 , H04W24/10
CPC classification number: H04W24/08 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/382 , H04L5/0048 , H04W16/14 , H04W24/10 , H04W72/0453 , H04W72/085 , H04W76/27 , H04W88/02 , H04W88/06 , H04W88/10
Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
Abstract translation: 在无线通信系统（100）中使用无线终端（2），并与无线电台（1）进行通信。 无线电终端（2）包括测量单元（20）。 测量单元（20）使用用于执行与应用于无线电通信系统（100）的无线电接入技术相对应的第一终端测量的终端测量程序来执行由多个无线电共享的共享频率的第二终端测量 包括无线电通信系统（100）的系统。
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公开(公告)号：US09392492B2
公开(公告)日：2016-07-12
申请号：US14593753
申请日：2015-01-09
Applicant: NEC CORPORATION
Inventor： Takamichi Inoue , Yoshikazu Kakura
CPC classification number: H04L5/005 , H04B2201/70701 , H04J13/0059 , H04J13/0077 , H04L5/0007 , H04L5/0048 , H04L27/2613 , H04W28/20
Abstract: In a radio communication system, transmission of CAZAC sequences as the pilot signal sequences by using code division multiplexing as at least one of user multiplexing schemes, is done by dividing a system band as a frequency band usable in the system into frequency blocks B1 and B2 having bandwidths W1 and W2, generating the pilot signals of the frequency blocks B1 and B2 with a single carrier, using the pilot signal sequences having sequence lengths L1 and L2 corresponding to frequency blocks B1 and B2 respectively; and, transmitting the generated pilot signals as the pilot signals corresponding individual users, with multicarriers using an arbitrary number of frequency blocks among the plural frequency blocks.
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公开(公告)号：US20150031284A1
公开(公告)日：2015-01-29
申请号：US14380305
申请日：2013-02-21
Applicant: NEC CORPORATION
Inventor： Boonsarn Pitakdumrongkija , Yoshikazu Kakura , Naoto Ishii
CPC classification number: H04W16/26 , H04B7/2606 , H04W24/02 , H04W88/04 , H04W88/085 , H04W92/20
Abstract: A communication system and method that can minimize interference between RN-access links and can maximize the capacity of RNs in the network is provided. The communication system has a plurality of communication nodes which includes a base station and a plurality of relay nodes, wherein the base station controls the relay nodes, each of which can provide a radio connection to at least one terminal via an access link, wherein the base station signals each of the relay nodes to report measurement information related to the access link.
Abstract translation: 提供了可以使RN接入链路之间的干扰最小化并且可以使网络中的RN的容量最大化的通信系统和方法。 通信系统具有包括基站和多个中继节点的多个通信节点，其中基站控制中继节点，每个中继节点可经由接入链路向至少一个终端提供无线电连接，其中， 基站向每个中继节点发信号，以报告与该接入链路相关的测量信息。
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公开(公告)号：US12219575B2
公开(公告)日：2025-02-04
申请号：US18211126
申请日：2023-06-16
Applicant: NEC CORPORATION
Inventor： Kenji Koyanagi , Takamichi Inoue , Le Liu , Yoshikazu Kakura
Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.
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公开(公告)号：US12041593B2
公开(公告)日：2024-07-16
申请号：US18100899
申请日：2023-01-24
Applicant: NEC Corporation
Inventor： Takamichi Inoue , Kenji Koyanagi , Le Liu , Yoshikazu Kakura
CPC classification number: H04W72/0453 , H04L5/0007 , H04L5/0037 , H04L5/0041 , H04L5/0044 , H04L5/0048 , H04L5/0057 , H04L5/006 , H04L5/0064 , H04L5/0094 , H04L27/2614 , H04W72/20 , H04W72/21 , H04W72/23 , H05K999/99 , H04W88/02 , H04W88/08
Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
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