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1. 发明专利

JP2015061173A 通信システム及びその省電力方法有权
标题翻译：通信系统及其节能方法
公开(公告)号：JP2015061173A
公开(公告)日：2015-03-30
申请号：JP2013193067
申请日：2013-09-18
申请人：日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： KIMURA HIDEAKI , KIMURA SHUNJI
IPC分类号： H04J3/00 , H04B10/272
摘要：【課題】本発明は、伝送パラメータを動的に制御可能なPONシステムにおいて、伝送要求を満足しつつ消費電力を低減することを目的とする。【解決手段】本発明は、複数の動的に制御可能な伝送パラメータを持つPONシステムにおいて、与えられた伝送ビットレート要求を満足する伝送パラメータの組み合わせの中から消費電力を最小化する伝送パラメータの組み合わせを選択する。【選択図】図1
摘要翻译：要解决的问题：在能够动态控制传输参数的PON系统中满足发送请求的同时抑制功耗。解决方案：在具有多个动态可控传输参数的PON系统中，用于最小化功耗的传输参数的组合是在满足给定传输比特率请求的传输参数的组合中选择。

2. 发明专利

JP2014183420A Method for time and carrier wave allocation 有权
标题翻译：时间和载波波分配方法
公开(公告)号：JP2014183420A
公开(公告)日：2014-09-29
申请号：JP2013055902
申请日：2013-03-19
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KIMURA HIDEAKI , NAKAMURA HIROTAKA , ASAKA KOTA
IPC分类号： H04B10/2513 , H04J11/00 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To dispense with a fast switchover function of a dispersion compensation amount for each carrier wave in an OLT that performs the allocation of time and a carrier wave and dispersion compensation.SOLUTION: A time and carrier wave allocation device in a communication system, in which one master node is connected to a plurality of slave nodes through optical transmission lines, allocates each slot divided in the time direction and the carrier wave direction to each slave node to perform multiplex communication. Signal transmission/reception to/from a slave node having an equivalent amount of dispersion compensation is allocated to a slot of the same time or a slot of the same carrier wave.
摘要翻译：要解决的问题：省略在执行时间分配的OLT中的每个载波的色散补偿量的快速切换功能，以及载波和色散补偿。解决方案：通信中的时间和载波分配设备系统，其中一个主节点通过光传输线连接到多个从节点，将在时间方向上划分的每个时隙和载波方向分配给每个从节点，以执行多路复用通信。向具有等量的色散补偿的从节点的信号发送/接收分配给相同载波的时隙或时隙。

3. 发明专利

JP2013131842A Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：JP2013131842A
公开(公告)日：2013-07-04
申请号：JP2011278686
申请日：2011-12-20
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KIMURA HIDEAKI , SHIMADA TATSUYA
IPC分类号： H04J11/00 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To design and operate an optical transmission system according to the transmission loss characteristic of a transmission line, thereby cutting back on power consumption.SOLUTION: An optical transmission system of the invention herein applied for is an optical transmission system in which an optical signal from an OFDM optical signal transmitter 30 is transmitted via an optical transmission line and is received by an OFDM optical signal receiver 31. The OFDM optical signal transmitter 30 comprises a subcarrier modulator 302, an IFFT arithmetic unit 303 which performs IFFT arithmetic in the number of bit digits determined by the transmission loss of the optical transmission line, and an optical signal transmitter 306. The OFDM optical signal receiver 31 comprises an optical signal receiver 316, an FFT arithmetic unit 313 which performs FFT arithmetic in the number of bit digits determined by the transmission loss of the optical transmission line, and a subcarrier demodulator 312.
摘要翻译：要解决的问题：根据传输线的传输损耗特性来设计和操作光传输系统，从而减少功耗。解决方案：本发明的光传输系统是一种光传输系统，其中来自OFDM光信号发送器30的光信号经由光传输线路发送，并由OFDM光信号接收器31接收.OFDM光信号发射机30包括子载波调制器302，IFFT运算单元303，其进行IFFT运算由光传输线的传输损耗确定的位数的数量以及光信号发送器306.OFDM光信号接收器31包括光信号接收器316，FFT运算器313，其以位数进行FFT运算由光传输线的传输损耗确定的数字，以及子载波de 调制器312。

4. 发明专利

JP2011172133A Optical radio access system and method 有权
标题翻译：光学无线接入系统及方法
公开(公告)号：JP2011172133A
公开(公告)日：2011-09-01
申请号：JP2010035698
申请日：2010-02-22
申请人： Nippon Telegr & Teleph Corp , Osaka Univ , 国立大学法人大阪大学 , 日本電信電話株式会社
发明人： KUBO RYOGO , TANIGUCHI TOMOHIRO , KANI JUNICHI , YOSHIMOTO NAOTO , KIMURA HIDEAKI , IWATSUKI KATSUMI , TSUKAMOTO KATSUTOSHI , KOMAKI SHOZO , TONO TAKESHI
IPC分类号： H04W16/28 , H04B10/27 , H04B10/272 , H04J14/00 , H04J14/02 , H04J99/00 , H04W28/16 , H04W92/12
摘要： PROBLEM TO BE SOLVED: To provide an optical radio access system of distributed MIMO-RoF configuration.
SOLUTION: An optical radio access system is equipped with: a BS multiplexing means for multiplexing (BS-multiplexing) optical signals transmitted between a CS and a plurality of BSs through optical multiplexing by WDM while assigning different wavelengths to the plurality of BSs, respectively; and an antenna multiplexing for multiplexing (antenna-multiplexing) electric signals transmitted between the CS and a plurality of antennas installed in the BSs. The CS is equipped with: a means for rearranging signals converted correspondingly to antennas by optical receiving sections, corresponding to the BSs, for optically receiving uplink signals antenna-multiplexed and WDM-transmitted by the BSs into a group for each cell and outputting the rearranged signals to a MIMO processing section; and a means 21 for rearranging the downlink signals, corresponding to the antennas, on which MIMO processing has been performed as a group for each cell, into a group for each BS and outputting the rearranged signals to an optical transmitting section for optical transmission with a BS compatible wavelength after antenna multiplexing.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供分布式MIMO-RoF配置的光无线接入系统。解决方案：光无线电接入系统配备有：BS多路复用装置，用于通过WDM的光复用来复用（BS复用）在CS和多个BS之间发送的光信号，同时向多个BS分配不同的波长，分别; 以及用于复用（天线复用）CS和安装在BS中的多个天线之间传输的电信号的天线复用。 CS配备有：用于重新排列相应于BS的光接收部分相应地转换为天线的信号的装置，用于光学接收由BS天线复用和WDM发送到上行链路的上行链路信号到每个小区的组，并输出重新排列的信号到MIMO处理部分; 以及用于将对应于已经执行MIMO处理的天线的下行链路信号重新排列成用于每个小区的组的装置21，被分组为每个BS的组，并将重新排列的信号输出到用于光传输的光发射部分，天线复用后的BS兼容波长。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010183333A Logic circuit, and logic integrated circuit 有权
标题翻译：逻辑电路和逻辑集成电路
公开(公告)号：JP2010183333A
公开(公告)日：2010-08-19
申请号：JP2009024742
申请日：2009-02-05
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： KIMURA HIDEAKI , TSUCHIYA HIDESUKE , KAKINUMA YOSHIHIRO
IPC分类号： H03K19/20 , H03K5/04 , H03K19/003 , H03K19/0175 , H03K19/082
摘要： PROBLEM TO BE SOLVED: To suppress variation of a duty ratio in an electronic circuit connected to the latter part of an OR circuit, and to stably operate the electronic circuit connected to the latter part against noise, power supply voltage variation, or temperature variation.
SOLUTION: This logic circuit has: a group of AND circuits 10 performing AND operations about combinations of all logic signals and the negations of the respective logic signals with respect to inputs of a plurality of logic signals (X0, X1, X2); first OR circuits 21 and 22 performing OR operations about combinations set in advance from AND signals outputted from this group of AND circuits 10; and second OR circuits 23 and 24 performing OR operations about the AND signals which are not targets about which the first OR circuits 21 and 22 perform OR operations of the AND signals outputted from the group of AND circuits 10. OR signals (Z0 and Z1) outputted from the first OR circuits 21 and 22 and OR signals (negations of Z0 and Z1) outputted from the second OR circuits 23 and 24 become differential inputs to differential circuits 31 and 32.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了抑制与OR电路的后半部分连接的电子电路中的占空比的变化，并且稳定地操作与后一部分连接的电子电路相对于噪声，电源电压变化或温度变化。解决方案：该逻辑电路具有：一组与电路10执行与所有逻辑信号的组合和相应逻辑信号相对于多个逻辑信号（X0，X1，X2）的输入的否定的“与”运算， ; 第一OR电路21和22对从AND电路组10输出的AND信号预先设置的组合执行或运算; 和第二OR电路23和24执行关于不是第一OR电路21和22进行与AND电路10组合的AND信号的或运算的AND信号的或运算。或者，信号（Z0和Z1）从第一OR电路21和22输出的和从第二OR电路23和24输出的OR信号（Z0和Z1的否定）变成差分电路31和32的差分输入。（C）2010，JPO＆INPIT

6. 发明专利

JP2009010679A Optical transmitter and optical transmission system 有权
标题翻译：光学发射器和光传输系统
公开(公告)号：JP2009010679A
公开(公告)日：2009-01-15
申请号：JP2007170013
申请日：2007-06-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SAKAI SHIGEHITO , KIMURA HIDEAKI
IPC分类号： H04J14/00 , H04B10/27 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To execute efficient transmission in optical transmission that uses wavelength multiplex, using a combination of different wavelengths or a different number of wavelengths for each transmission destination or by each service.
SOLUTION: A combination of wavelengths used for transmission is determined, corresponding to a destination of a transmission signal or a service to which the transmission signal belongs; a plurality of the determined combinations of wavelengths, corresponding to a plurality of destinations or a plurality of services are arranged into the same transmission signal so that the wavelengths of the combinations each other do not overlap. Alternatively, the number of wavelengths used for transmission is determined, corresponding to a destination of a transmission signal or a service to which the transmission signal belongs; the number of wavelengths determined, corresponding to a plurality of destinations or a plurality of services, is assigned to the same transmission signal in a range which does not exceed the predetermined maximum number of wavelengths. It is also possible to execute first from processing related to destinations or services belonging to a high-priority group.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了在使用波长多路复用的光传输中执行有效的传输，对于每个传输目的地或每个服务使用不同波长或不同数量的波长的组合。解决方案：对应于传输信号的目的地或传输信号所属的业务，确定用于传输的波长的组合; 对应于多个目的地或多个服务的多个确定的波长组合被布置成相同的传输信号，使得这些组合的波长彼此不重叠。或者，与发送信号所属的发送信号或服务的目的地对应地确定用于发送的波长的数量; 对应于多个目的地或多个业务确定的波长数被分配给不超过预定最大波长数的范围内的相同发送信号。也可以首先从属于高优先级组的目的地或服务的处理执行。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008219080A Communication system and transmitter-receiver 有权
标题翻译：通信系统和发射机接收机
公开(公告)号：JP2008219080A
公开(公告)日：2008-09-18
申请号：JP2007049352
申请日：2007-02-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SAKAI SHIGEHITO , KIMURA HIDEAKI
IPC分类号： H04L12/801 , H04L12/841 , H04L12/851 , H04L12/911
摘要： PROBLEM TO BE SOLVED: To reduce data frame collisions when a bit rate is high and transmitter-receivers are separated without the need of an expensive apparatus in a network characterized by receiving not only a frame from the other transmitter-receiver but also a frame transmitted by itself through a repeater. SOLUTION: The transmitter-receiver trying data frame transmission transmits an information frame including transmission scheduled time information prior to the data frame transmission. The other transmitter-receiver which receives it sets the transmission scheduled time on the basis of information described in the information frame and transmission is suppressed in a time zone during which the collision of the frames with each other is predicted. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了在比特率高的情况下减少数据帧冲突，并且在不需要昂贵的设备的网络中分离发射机 - 接收机，其特征在于不仅接收来自其他发射机 - 接收机的帧，而且还接收通过中继器自身发送的帧。解决方案：发送接收者尝试数据帧发送在数据帧发送之前发送包括发送调度时间信息的信息帧。接收它的其他发射机 - 接收机根据在信息帧中描述的信息设置传输调度时间，并且在预测帧之间的相互冲突的时间段中抑制传输。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2004274173A Preamplifier circuit 审中-公开
公开(公告)号：JP2004274173A
公开(公告)日：2004-09-30
申请号：JP2003059033
申请日：2003-03-05
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , エヌティティエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： KITAHARA KOJI , NAKAMURA MAKOTO , KIMURA HIDEAKI , YOSHIDA TOMOAKI
IPC分类号： H03F3/08 , H04B10/07 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/67 , H04B10/69 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26 , H04B10/28
摘要： PROBLEM TO BE SOLVED: To change the resistance value of a feedback resistor in accordance with a transmission rate without exchanging a preamplifier circuit when the transmission rate of a transmission system is changed. SOLUTION: The preamplifier circuit includes: an amplifier circuit for converting, into a voltage signal, a current signal from a photodetector that converts an optical signal into the current signal; the feedback resistor for connecting an input and an output of the amplifier circuit; and a transmission rate/voltage conversion circuit for controlling the resistance value of the feedback resistor in accordance with the transmission rate of the voltage signal. It is preferable, in the transmission rate/voltage conversion circuit, to reduce the resistance value of the feedback resistor as the transmission rate of the voltage signal increases. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2014241466A ディスカバリ方法及び光伝送システム有权
标题翻译：发现方法和光传输系统
公开(公告)号：JP2014241466A
公开(公告)日：2014-12-25
申请号：JP2013122453
申请日：2013-06-11
申请人：日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： KIMURA HIDEAKI , NAKAMURA HIROTAKA , ASAKA KOTA
IPC分类号： H04B10/272 , H04B10/073 , H04J14/00 , H04J14/02 , H04L12/44
摘要：【課題】起動直後などONUの波長可変フィルタが不定状態にある場合でもディスカバリ信号を受信することができ、且つ光信号の送受信に用いる波長スロット数が増加してもONUの認証時間の増加を抑えることができるディスカバリ方法及び光伝送システムを提供することを目的とする。【解決手段】本発明は、ディスカバリ信号を送信する際、ONU(加入者宅装置)において波長可変フィルタの透過波長帯域を拡張するとともに、OLT(局側装置)においてディスカバリ信号に近い信号波長の光信号を停止することとした。【選択図】図1
摘要翻译：要解决的问题：提供一种发现方法和光传输系统，如果ONU的波长可变滤波器处于不稳定状态（诸如激活之后），则能够接收发现信号，并且能够抑制ONU认证时间的增加如果用于光信号的发送/接收中的波长时隙的数量增加。解决方案：发现方法包括：在发送发现信号时，在ONU（用户驻地设备）中扩展波长可变滤波器的传输波长带; 并且在OLT（站侧设备）中挂起具有与发现信号的信号波长接近的信号波长的光信号。

10. 发明专利

JP2014007487A Communication control method and station side optical communication device 有权
标题翻译：通信控制方法和站点光通信设备
公开(公告)号：JP2014007487A
公开(公告)日：2014-01-16
申请号：JP2012140585
申请日：2012-06-22
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KIMURA HIDEAKI , NAKAMURA HIROTAKA
IPC分类号： H04L12/44
摘要： PROBLEM TO BE SOLVED: To provide an OLT communication control method and an OLT that can reduce the power consumption of the OLT while satisfying a traffic request band.SOLUTION: The invention is an OLT communication control method in a WDM/TDM-PON system which can switch an uplink allocation wavelength and allocation time slot according to time. The communication control method comprises, in the following order: an optical signal receiver request number calculation procedure for calculating the request number of optical signal receivers on the basis of the uplink traffic request band from ONUs; a sleeping optical signal receiver determination procedure for determining optical signal receivers which will be shifted to a sleeping state when the optical signal receiver request number is smaller than an optical signal receiver operation number; and an optical signal receiver sleeping state transition procedure for relocating an uplink allocation wavelength and allocation time slot according to the determined sleeping optical signal receivers and for shifting the optical signal receivers which do not have the uplink allocation wavelength any more to the sleeping state.
摘要翻译：要解决的问题：提供一种能够在满足业务请求频带的同时降低OLT的功耗的OLT通信控制方法和OLT。解决方案：本发明是一种WDM / TDM-PON系统中的OLT通信控制方法，可以根据时间切换上行分配波长和分配时隙。通信控制方法按照以下顺序包括：根据来自ONU的上行链路业务请求频带计算光信号接收机的请求数的光信号接收机请求号码计算程序; 睡眠光信号接收机确定程序，用于确定当光信号接收机请求号小于光信号接收机操作数时将被转移到休眠状态的光信号接收机; 以及用于根据所确定的睡眠光信号接收机重定位上行分配波长和分配时隙的光信号接收器睡眠状态转换过程，并且用于将没有上行链路分配波长的光信号接收机移动到睡眠状态。

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