公开(公告)号：US09906389B2

公开(公告)日：2018-02-27

申请号：US15321624

申请日：2015-02-24

Applicant: NEC Corporation

Inventor： Yasunori Futatsugi ,  Naoto Ishii

IPC: H04L27/26 ,  H04B1/16 ,  H04L5/00

CPC classification number: H04L27/2607 ,  H04B1/16 ,  H04L5/0007 ,  H04L25/0307 ,  H04L27/2665 ,  H04L27/2666

Abstract: The object of the present invention is to reduce the number of complex multiplications in an ICI reduction processing and to reduce the influence of characteristic degradation due to a quantization bit limitation of a digital signal processing. A receiver includes an extended CP addition unit (102) that receives radio signals through a plurality of paths and compensates for a symbol lost within a Fourier transform window to received signals received through the plurality of paths; and FFTs (104-1 and 104-2) each of which performs, in a range of the Fourier transform window, Fourier transform on the received signal with a lost symbol added.

公开(公告)号：US09432935B2

公开(公告)日：2016-08-30

申请号：US13944984

申请日：2013-07-18

Applicant: NEC CORPORATION

Inventor： Naoto Ishii ,  Jinsock Lee

IPC: G08C15/00 ,  G08C17/00 ,  H04W52/02 ,  H04W76/04 ,  H04L1/18

CPC classification number: H04L49/555 ,  H04L1/1829 ,  H04L1/1887 ,  H04W52/0209 ,  H04W52/0216 ,  H04W76/28 ,  Y02D70/1244 ,  Y02D70/23 ,  Y02D70/24

Abstract: Provided is a mobile station which communicates with abase station using a radio channel, the mobile station comprising: a switching unit configured to switch from a packet reception period, during which packet reception can be executed, to a packet reception halt period, during which packet reception is halted; a transmission unit configured to transmit, to the base station, a result of receiving a packet sent from the base station, as a reception result notification signal; a packet reception determination unit configured to determine a packet reception fault; and a reception period determination unit configured to extend the packet reception period if the packet reception fault is determined by the packet reception determination unit.

Abstract translation: 提供了一种使用无线电信道与基站进行通信的移动站，所述移动站包括：切换单元，被配置为从分组接收时段切换到可以执行分组接收期间的分组接收停止时段，在该分组接收周期期间， 接待停止; 发送单元，被配置为向所述基站发送接收从所述基站发送的分组的结果作为接收结果通知信号; 分组接收确定单元，被配置为确定分组接收故障; 以及接收时段确定单元，被配置为如果由所述分组接收确定单元确定了分组接收故障，则扩展分组接收时段。

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

IPC: H04W16/26 ,  H04W24/02

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。