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1. 发明授权

US06980742B1 Wavelength control in optical WDM systems 失效
标题翻译：光学WDM系统中的波长控制
公开(公告)号：US06980742B1
公开(公告)日：2005-12-27
申请号：US09762996
申请日：1999-08-03
申请人： Fredrik Lidén , Magnus Öberg
发明人： Fredrik Lidén , Magnus Öberg
IPC分类号： G02F1/01 , H04B10/50 , H04B10/572 , H04J14/00 , H04J14/02 , H04B10/12
CPC分类号： H04B10/506 , H04B10/572
摘要： Wavelength drift in an optical WDM system between wavelengths launched by lasers (110) and received at a demultiplexer (50) can lead to disturbance of traffic signals if not identified and rectified rapidly. It is proposed to identify wavelength drift by determining a difference in temperature of the demultiplexer (50) for each channel between an actual temperature and a temperature for optimal transmission of the channel. The mean of these temperature differences for all channels is indicative of wavelength drift, while each difference is utilised to determine whether an individual channel is drifting in wavelength and to correct the drift. Wavelength drift can be detected and corrected whether sourced at a laser (110) or due to a temperature variation at the demultiplexer (50). Measurement and control can be performed during normal operation without impeding or degrading traffic flow. Wavelength influencing parameters other than temperature can be utilized.
摘要翻译：在由激光器（110）发射并在解复用器（50）处接收的波长的波长之间的光学WDM系统中的波长漂移可导致交通信号的干扰，如果没有被快速识别和纠正。提出通过确定用于信道的最佳传输的实际温度和温度之间的每个信道的解复用器（50）的温度差来识别波长漂移。所有通道的这些温度差的平均值表示波长漂移，而每个差被用于确定单个通道是否在波长漂移并且校正漂移。不管源于激光器（110）还是由于解复用器（50）处的温度变化，都可以检测和校正波长漂移。测量和控制可以在正常运行期间进行，而不会阻碍或降低交通流量。可以利用除温度以外的波长影响参数。

2. 发明授权

US06654513B1 Path monitoring in optical communication systems 有权
标题翻译：光通信系统中的路径监控
公开(公告)号：US06654513B1
公开(公告)日：2003-11-25
申请号：US09762995
申请日：2001-07-16
申请人： Fredrik Lidén , Johan Sandell , Sven Wingstrand , Magnus Öberg
发明人： Fredrik Lidén , Johan Sandell , Sven Wingstrand , Magnus Öberg
IPC分类号： G02B628
CPC分类号： H04J14/0289 , H04B10/032 , H04B10/07 , H04B10/2912 , H04B10/2933 , H04J14/0279 , H04J14/029
摘要： An optical communication line having optical fiber amplifiers including a pump laser can be configured to suppress the transmission of optical signals by reducing the power of the pump laser. In order that the portion of the line downstream of the amplifier can be monitored for fiber breaks causing only negligible crosstalk with a parallel working line, and with the elimination of the risk of mistaking reflections from a working line for light emitted by the standby amplifier, the light emitted by the standby amplifier is modulated by a low frequency control tone. The modulated laser light causes modulation of the amplified spontaneous emission (ASE) generated in the amplifier to create a control tone. Monitoring means disposed at the end of the optical line detect this control tone and use this as the criteria for a functional connection downstream the amplifier.
摘要翻译：具有包括泵浦激光器的光纤放大器的光通信线路可以被配置为通过降低泵浦激光器的功率来抑制光信号的传输。为了对放大器下游的线路的部分进行监视以进行纤维断裂，仅产生与并行工作线的可忽略的串扰，并且消除了备用放大器发出的光线从工作线上发生误差的风险，由待机放大器发出的光由低频控制音调制。调制的激光引起在放大器中产生的放大的自发辐射（ASE）的调制以产生控制音。设置在光线路端部的监视装置检测该控制音，并将其用作放大器下游的功能连接的标准。

3. 发明授权

US06215583B1 System with feedback controlled optical amplifiers 有权
标题翻译：具有反馈控制光放大器的系统
公开(公告)号：US06215583B1
公开(公告)日：2001-04-10
申请号：US09254712
申请日：1999-11-19
申请人： Bo Lagerström , Gunnar Forsberg , Magnus Öberg , Dag Bonnedal , Bengt Johansson
发明人： Bo Lagerström , Gunnar Forsberg , Magnus Öberg , Dag Bonnedal , Bengt Johansson
IPC分类号： H01S300
CPC分类号： H04B10/296 , H01S3/1301 , H04B10/294
摘要： The present invention relates to an optical system with an optical amplifier having at least one input and output, a control circuit for controlling the output power of the amplifier with the aid of an output process demand signal (PD) from a control means. The control circuit comprises control means, a detector block and a means for tapping off light from an input or an output of the optical amplifier to the detector block. According to the invention, at least one check signal (A) is disposed to be sent in at least one check signal channel which passes through the optical amplifier. The detector block is configured to measure the amplitude of the control signal(s).
摘要翻译：本发明涉及具有至少一个输入和输出的具有光学放大器的光学系统，一个控制电路，借助于来自控制装置的输出处理要求信号（PD）来控制放大器的输出功率。控制电路包括控制装置，检测器块和用于将光从光放大器的输入或输出抽出到检测器块的装置。根据本发明，至少一个检查信号（A）被布置成在通过光放大器的至少一个检查信号通道中发送。检测器块被配置为测量控制信号的幅度。

4. 发明授权

US09730267B2 Methods and devices for radio bearer release 有权
公开(公告)号：US09730267B2
公开(公告)日：2017-08-08
申请号：US14381808
申请日：2012-03-14
申请人： Magnus Öberg , Peter Östrup
发明人： Magnus Öberg , Peter Östrup
IPC分类号： H04W76/06 , H04L12/24 , H04W24/02 , H04W24/10
CPC分类号： H04W76/06 , H04L41/0659 , H04W24/02 , H04W24/10 , H04W76/30 , H04W76/34 , H04W76/38
摘要： The disclosure relates to a method (30) for radio bearer release performed in a base station node (2) of a communication system (5). The base station node (2) provides one or more radio bearers to a user equipment (1), and the communication system (5) comprises a serving gateway (4). The method (30) comprises: receiving (31) an error message from the serving gateway (4), the error message indicating a faulty radio bearer; awaiting (32), for a delay time, additional error messages indicating faulty radio bearers; and releasing (33) the one or more radio bearers being indicated as faulty.

5. 发明申请

US20150029975A1 METHODS AND DEVICES FOR RADIO BEARER RELEASE 有权
标题翻译：无线电轴承释放的方法和装置
公开(公告)号：US20150029975A1
公开(公告)日：2015-01-29
申请号：US14381808
申请日：2012-03-14
申请人： Magnus Öberg , Peter Östrup
发明人： Magnus Öberg , Peter Östrup
IPC分类号： H04W76/06 , H04W24/10 , H04L12/24 , H04W24/02
CPC分类号： H04W76/06 , H04L41/0659 , H04W24/02 , H04W24/10 , H04W76/30 , H04W76/34 , H04W76/38
摘要： The disclosure relates to a method (30) for radio bearer release performed in a base station node (2) of a communication system (5). The base station node (2) provides one or more radio bearers to a user equipment (1), and the communication system (5) comprises a serving gateway (4). The method (30) comprises: receiving (31) an error message from the serving gateway (4), the error message indicating a faulty radio bearer; awaiting (32), for a delay time, additional error messages indicating faulty radio bearers; and releasing (33) the one or more radio bearers being indicated as faulty.
摘要翻译：本公开涉及在通信系统（5）的基站节点（2）中执行的用于无线承载释放的方法（30）。基站节点（2）向用户设备（1）提供一个或多个无线电承载，并且通信系统（5）包括服务网关（4）。所述方法（30）包括：从所述服务网关（4）接收（31）错误消息，所述错误消息指示有故障的无线承载; 等待（32）延迟时间，附加错误消息指示无线电承载故障; 并释放（33）一个或多个无线电承载被指示为有故障的。

6. 发明授权

US06915075B1 Protection of WDM-channels 有权
标题翻译：保护WDM通道
公开(公告)号：US06915075B1
公开(公告)日：2005-07-05
申请号：US09643993
申请日：2000-08-23
申请人： Magnus Öberg , Nigel Robert Wood , Jonas Hemgren
发明人： Magnus Öberg , Nigel Robert Wood , Jonas Hemgren
IPC分类号： H04J14/02 , H04B10/18 , H04J14/00
CPC分类号： H04J14/0297 , H04J14/0279 , H04J14/0293
摘要： An optical network comprises a bidirectional link connecting two nodes (1) through two optical fibers (3). Optical output signals from optical transmitters (7) in a node are provided to transponders (11) issuing optical signals of well-defined wavelengths to a power combiner (13), from which optical signals are forwarded to the other node on the respective fiber. The network can have protection for failures of various components. Thus, a spare transponder (21) can receive the optical output signals of an optical transmitter (7) in the case of a failure of an ordinary transponder (11). The spare transponder (21) is also connected to the combiner (13). The optical transmitters (7) and receivers (9) can be duplicated by providing spare transmitters (7′) and spare receivers (9′). Various arrangements can be used for connecting the output of a transmitter to an ordinary transponder or the spare transponder. For example, cross-bar switches (17, 19) can be arranged at the outputs of a pair of an ordinary transmitter and a spare transmitter and at the inputs of a pair of an ordinary receiver and a spare receiver. For a node having N−1 ordinary transmitters a N:1 switch (23) is then arranged at the input of the spare transponder (21).
摘要翻译：光网络包括通过两个光纤（3）连接两个节点（1）的双向链路。一个节点中的光发射机（7）的光输出信号被提供给转发器（11）向功率组合器（13）发出明确定义的波长的光信号，光信号从该光信号转发到相应光纤上的另一个节点。网络可以保护各种组件的故障。因此，在普通应答器（11）发生故障的情况下，备用转发器（21）可以接收光发送器（7）的光输出信号。备用应答器（21）也连接到组合器（13）。可以通过提供备用发射机（7'）和备用接收机（9'）来复制光发射机（7）和接收机（9）。可以使用各种布置来将发射机的输出连接到普通的应答器或备用发射机应答器。例如，横杆开关（17,19）可以布置在一对普通发射机和备用发射机的输出端以及一对普通接收机和备用接收机的输入端。对于具有N-1个普通发射机的节点，N：1交换机（23）然后被布置在备用发射机应答器（21）的输入端。

7. 发明授权

US06590681B1 Optical WDM network having an efficient use of wavelengths and a node therefor 有权
标题翻译：具有有效利用波长的光WDM网络及其节点
公开(公告)号：US06590681B1
公开(公告)日：2003-07-08
申请号：US09328385
申请日：1999-06-09
申请人： Lars Egnell , Bengt Johansson , Robert Batchellor , Nigel Wood , Magnus Öberg
发明人： Lars Egnell , Bengt Johansson , Robert Batchellor , Nigel Wood , Magnus Öberg
IPC分类号： H04J1402
CPC分类号： H04Q11/0062 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0213 , H04J14/0283 , H04J14/0295 , H04Q11/0005 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0075 , H04Q2011/0081
摘要： An optical fiber network of WDM type comprises two fibers which carry light signals propagating in opposite directions and which are arranged in a ring configuration. One standby link between two neighboring nodes is inactive but is made active if an active link fails. An add and drop node used in the network has band blocking filters connected in a fiber between a drop coupler and an add coupler, taking out a share of the light power in each direction to be received through bandpass filters in receivers and adding new wavelength channels produced in transmitters, respectively. Switches are used for receiving and transmitting on the wavelength channels in correct directions. The positions of the switches can be changed when the inactive link has to become one of the two active links directly connected to the node. A very efficient use of the wavelength channels in the network can then be achieved for nodes having a minimum of in-line components, and particularly, a minimum of in-line filtering components.
摘要翻译： WDM型光纤网络包括两个光纤，其携带沿相反方向传播的光信号，其布置成环形结构。两个相邻节点之间的一个备用链路处于非活动状态，但如果主动链路发生故障，则其将被激活。在网络中使用的添加和分出节点具有连接在光耦合器和加法耦合器之间的光纤中的带阻滤波器，在接收机中通过带通滤波器在每个方向上取出光功率的份额并添加新的波长信道分别在发射机中产生。开关用于在正确的方向上在波长通道上进行接收和发送。当非活动链路必须成为直接连接到节点的两个活动链路之一时，可以改变交换机的位置。然后可以对具有最小的在线组件的特别是最小的在线过滤组件的节点实现网络中波长信道的非常有效的使用。

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