公开(公告)号：US20150381261A1

公开(公告)日：2015-12-31

申请号：US14697147

申请日：2015-04-27

申请人： FUJITSU LIMITED

发明人： Tadanori YOKOSAWA ,  Eiichi OHYAMA

IPC分类号： H04B7/155 ,  H04B17/40 ,  H04B7/02

CPC分类号： H04B7/15571 ,  H04B7/026 ,  H04B7/15507 ,  H04B7/1555 ,  H04B7/15585 ,  H04B17/40

摘要： A relay device in a system in which a transmission signal of a base station is relayed via a plurality of relay devices, includes: a first antenna configured to receive the transmission signal; a second antenna configured to communicate a target relay device being a relay destination relay device for the transmission signal; a communication unit configured to perform notification of setting information of the first and second antennas to other relay devices including the target relay device, and communication for acquiring setting information of the other relay devices; and an analysis unit configured to analyze a cause of a relay status lower than a criterion when the relay status of the transmission signal is lower than the criterion.

摘要翻译： 一种在基站的发送信号经由多个中继装置中继的系统中的中继装置，包括：第一天线，被配置为接收所述发送信号; 第二天线，被配置为传送作为所述发送信号的中继目的地中继装置的目标中继装置; 通信单元，被配置为对包括目标中继装置的其他中继装置执行第一和第二天线的设置信息的通知，以及用于获取其他中继装置的设置信息的通信; 以及分析单元，被配置为当所述发送信号的中继状态低于所述准则时，分析低于准则的中继状态的原因。

公开(公告)号：US20170318488A1

公开(公告)日：2017-11-02

申请号：US15473986

申请日：2017-03-30

申请人： FUJITSU LIMITED

发明人： Akifumi Adachi ,  Tadanori YOKOSAWA ,  HIDEYUKI KANNARI ,  Tadahiro Sato

IPC分类号： H04W24/08 ,  H04W72/04 ,  H04W72/08 ,  H04L12/26

CPC分类号： H04W24/08 ,  H04B10/25754 ,  H04L1/00 ,  H04L1/20 ,  H04L43/16 ,  H04W72/0453 ,  H04W72/0473 ,  H04W72/085

摘要： A multiplexing device for multiplexing uplink signals transmitted from each of a plurality of radio devices and outputting the multiplexed signal to a radio control device performs a calculation processing that calculates a power value of the uplink signal for each radio device, performs a determination processing that determines whether or not noise of a radio device that transmits an uplink signal is dominant among signal components included in the uplink signal, using the power value of the uplink signal, performs a blocking processing that blocks the uplink signal in which the noise is dominant in a case where the noise is determined to be dominant among the signal components included in the uplink signal, and performs a multiplexing processing that multiplexes uplink signals that are not blocked among the uplink signals for each radio device, and outputs the multiplexed signal to the radio control device.

公开(公告)号：US20160360571A1

公开(公告)日：2016-12-08

申请号：US15130051

申请日：2016-04-15

申请人： FUJITSU LIMITED

发明人： Tadanori YOKOSAWA ,  Hiroyuki SEKINO ,  Hitoshi Nakazawa ,  Kazutomo Tsuji

IPC分类号： H04W88/08 ,  H04B1/04

CPC分类号： H04W88/085 ,  H04B1/04 ,  H04B1/0475

摘要： An RRH includes a power supply device, an AISG interface, a PA, and a control unit. The PA is operated by a power source with a first voltage or a second voltage that is lower than the first voltage and amplifies a transmission signal. The AISG interface is connected to an antenna control device operated by the power source with the second voltage. The power supply device supplies the power source to the PA and the power source to the antenna control device to the AISG interface. When the antenna control device is operated, the control unit controls such that the power supply device generates the power source with the second voltage, supplies the generated power source to the PA and the antenna control device, and increase power of the transmission signal output from the PA that is operated by the power source with the second voltage.

摘要翻译： RRH包括电源装置，AISG接口，PA和控制单元。 PA由具有低于第一电压的第一电压或第二电压的电源操作并放大发送信号。 AISG接口连接到由第二电压由电源操作的天线控制装置。 电源设备向PA提供电源，将天线控制装置的电源提供给AISG接口。 当操作天线控制装置时，控制单元进行控制，使得电源装置以第二电压产生电源，将生成的电源提供给PA和天线控制装置，并且增加从 由具有第二电压的电源操作的PA。

公开(公告)号：US20150349912A1

公开(公告)日：2015-12-03

申请号：US14822110

申请日：2015-08-10

申请人： FUJITSU LIMITED ,  FUJITSU TELECOM NETWORKS LIMITED

发明人： MASAMITSU KOMI ,  Tadanori YOKOSAWA ,  Hirokazu SHIMADA ,  Tamotsu INOUE

IPC分类号： H04J14/02 ,  H04B10/079 ,  H04Q11/00

CPC分类号： H04J14/0246 ,  H04B10/07957 ,  H04B10/25754 ,  H04J14/0245 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0295 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0081 ,  H04Q2011/0086

摘要： An optical network system includes an optical line terminal, an optical splitter that is connected to the optical line terminal via one first optical fiber, and a plurality of optical network units that are connected to the optical splitter via respective second optical fibers. The plurality of optical network units communicate with the optical line terminal using an optical signal of a working wavelength uniquely assigned to each of them. The optical line terminal communicates with an optical network unit that is connected to the optical splitter using an optical signal of a working wavelength and an optical signal of a spare wavelength that is common to a plurality of optical networks.

摘要翻译： 光网络系统包括光线路终端，经由一个第一光纤连接到光线路终端的光分路器，以及通过相应的第二光纤连接到光分路器的多个光网络单元。 多个光网络单元使用唯一分配给它们的工作波长的光信号与光线路终端通信。 光线路终端使用与多个光网络共用的工作波长的光信号和备用波长的光信号连接到光分路器的光网络单元。

公开(公告)号：US20140341061A1

公开(公告)日：2014-11-20

申请号：US14446825

申请日：2014-07-30

申请人： FUJITSU LIMITED

发明人： Yuki Shinada ,  Daisuke Nitta ,  Tadanori YOKOSAWA ,  Takahiro Kawaguchi

IPC分类号： H04W40/12 ,  H04W24/08

CPC分类号： H04W40/12 ,  H04W16/18 ,  H04W16/20 ,  H04W24/08 ,  H04W24/10

摘要： A management apparatus that identifies a candidate for improving communication quality in a wireless communication system including a base station and a mobile station, the management apparatus comprising: an obtainer that obtains measured communication quality information and positional information from the mobile station; a communication quality estimator that estimates a communication quality based on the positional information obtained from the mobile station; a communication path determiner that identifies a communication path using the estimated communication quality estimated and the measured communication quality information; and a communication quality improvement candidate determiner that identifies the candidate for improving communication quality related to the communication path determined, the candidate being based on communication quality. A method and a program for identifying a candidate for improving communication quality, an apparatus, a method, and a program for determining a communication path, and a wireless communication system are also provided.

摘要翻译： 一种识别用于提高包括基站和移动站的无线通信系统中的通信质量的候选者的管理装置，所述管理装置包括：获取器，其从所述移动站获取测量的通信质量信息和位置信息; 通信质量估计器，其基于从所述移动站获得的位置信息来估计通信质量; 通信路径确定器，其使用所估计的估计通信质量和所测量的通信质量信息来识别通信路径; 以及通信质量改进候选者确定器，其识别用于提高与所确定的通信路径相关的通信质量的候选，所述候选者基于通信质量。 还提供了一种用于识别用于提高通信质量的候选者的方法和程序，用于确定通信路径的装置，方法和程序，以及无线通信系统。