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    • 4. 发明申请
    • Protection for Fibre Optic Access Networks
    • 光纤接入网络保护
    • US20140199062A1
    • 2014-07-17
    • US14117406
    • 2011-05-17
    • Einar In De BetouStefan DahlfortDavid HoodPeter Öhlén
    • Einar In De BetouStefan DahlfortDavid HoodPeter Öhlén
    • H04B10/032
    • H04B10/032H04B10/25753H04J14/0287H04W24/04H04W88/085
    • An Optical Network Unit, ONU, and an Optical Line Terminal, OLT, as well as a respective method therein, are provided for enabling the ONU to communicate with the OLT. The ONU and at least one OLT are comprised in a passive fibre optic access network. The passive fibre optic access network comprises two fibre paths through the network, a main fibre path and a back-up fibre path, connecting the ONU with the OLT. When a fault is detected in the main fibre path is detected, transmission rate negotiation is performed between the ONU and the OLT over the back-up path. When a transmission rate is agreed upon between the ONU and the OLT during said transmission rate negotiation with regard to communication over the back-up path, the communication between the ONU and the OLT is executed using the agreed transmission rate over the back-up path.
    • 光网络单元,ONU和光线路终端,OLT以及其中的相应方法被提供用于使得ONU能够与OLT通信。 ONU和至少一个OLT包括在无源光纤接入网络中。 无源光纤接入网络包括通过网络的两条光纤路径,主光纤路径和备用光纤路径,将ONU与OLT连接起来。 当在主光纤路径中检测到故障时,通过备用路径在ONU与OLT之间进行传输速率协商。 当在通过备用路径的通信的所述传输速率协商期间在ONU与OLT之间达成传输速率时,ONU和OLT之间的通信是通过备用路径的约定的传输速率来执行的 。
    • 5. 发明申请
    • SYSTEM CARD ARCHITECTURE FOR SWITCHING DEVICE
    • 用于切换设备的系统卡结构
    • US20110002108A1
    • 2011-01-06
    • US12918894
    • 2008-02-27
    • Stefan DahlfortEinar In De Betou
    • Stefan DahlfortEinar In De Betou
    • H05K7/14
    • H04Q1/08H04L49/40H04Q1/035H04Q1/15Y02D30/32
    • It is an object of the present invention to provide switching equipment for communications networks, which switching equipment supports high-speed signalling between switch cards and line cards. Hence, the invention relates to a switching device for communications networks comprising a plurality of line cards and at least one switch card. The line cards comprise connection means arranged on or close to one edge of each line card, and the at least one switch card comprises matching connection means arranged on one flat side of said switch card. In this way, when said switch card is arranged substantially perpendicular to said line cards with said flat side of the switch card facing and at least partially overlapping said edges of the line cards, interconnection is achieved between the connection means of the line cards and the matching connection means of the at least one switch card.
    • 本发明的目的是提供通信网络的交换设备,该交换设备支持交换机卡和线路卡之间的高速信令。 因此,本发明涉及用于包括多个线路卡和至少一个交换卡的通信网络的交换设备。 线卡包括布置在每个线卡的一个边缘上或其附近的连接装置,并且该至少一个开关卡包括布置在所述开关卡的一个平坦侧上的匹配连接装置。 以这种方式,当所述开关卡基本上垂直于所述线卡布置时,开关卡的所述平坦侧面对并且至少部分地与线路卡的边缘重叠,在线路卡的连接装置和 所述至少一个开关卡的匹配连接装置。
    • 9. 发明申请
    • PROTECTION FOR DISTRIBUTED RADIO ACCESS NETWORKS
    • 分布式无线接入网络的保护
    • US20140161438A1
    • 2014-06-12
    • US14117021
    • 2011-08-24
    • Einar In De BetouJacob ÖsterlingNiklas Johansson
    • Einar In De BetouJacob ÖsterlingNiklas Johansson
    • H04B10/032H04B10/2575
    • H04B10/032H04B10/25753H04J14/0287H04W24/04H04W88/085
    • The invention relates to a distributed radio access network communicatively coupled to a core network, and a method for upholding a service in case of a failure in the distributed radio access network. The distributed radio access network comprises a main radio equipment controller communicatively coupled to at least one remote radio unit over a main optical path, a backup radio equipment controller communicatively coupled to the main radio equipment controller for synchronization, and a protection optical path for communicatively coupling the at least one remote radio unit to the backup radio equipment controller in case of a failure in communication between the main radio equipment controller and the at least one remote radio unit over the main optical path such that a service remains running when the failure occurs.
    • 本发明涉及通信地耦合到核心网络的分布式无线电接入网络,以及在分布式无线接入网络中发生故障的情况下维持业务的方法。 分布式无线电接入网络包括通过主光路通信耦合到至少一个远程无线电单元的主无线电设备控制器,通信地耦合到主无线电设备控制器用于同步的备用无线电设备控制器,以及用于通信耦合的保护光路 在主无线电设备控制器和主光路之间的至少一个远程无线电单元之间的通信故障的情况下,至少一个远程无线电单元到备用无线电设备控制器,使得当发生故障时服务保持运行。
    • 10. 发明授权
    • Method and apparatus providing protection and DC balance in a communication system
    • 在通信系统中提供保护和直流平衡的方法和装置
    • US08995562B2
    • 2015-03-31
    • US13578672
    • 2011-02-14
    • Einar In De BetouPeter Öhlén
    • Einar In De BetouPeter Öhlén
    • H04L27/00H04L25/49H04L25/03
    • H04L25/4908H04L25/03866
    • A method and apparatus for controlling DC balance in a digital communication system in which data frames are transmitted, wherein the data frames include a header portion that is transmitted unscrambled and a payload portion that is scrambled before transmission. The header portion includes a frame counter field. A value for the frame counter field is randomly generated and an effect on the DC balance is estimated. It is then determined whether the estimated effect on the DC balance meets defined requirements for DC balance. When the estimated effect does not meet the defined requirements for DC balance, a new random value for the frame counter field is generated and checked. When the estimated effect meets the requirements, the randomly generated value is utilized in the frame counter field in transmitted data frames.
    • 一种在发送数据帧的数字通信系统中控制DC平衡的方法和装置,其中数据帧包括未加扰的头部部分和在发送之前加扰的有效载荷部分。 标题部分包括帧计数器字段。 随机生成帧计数器字段的值,并估计对直流平衡的影响。 然后确定对直流平衡的估计影响是否满足直流平衡的定义要求。 当估计效果不符合直流平衡的定义要求时,会生成并检查帧计数器字段的新随机值。 当估计效果满足要求时,在发送的数据帧中的帧计数器字段中利用随机生成的值。