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1. 发明申请

US20120002714A1 Communication on a Pilot Wire 有权
标题翻译：飞行员通讯
公开(公告)号：US20120002714A1
公开(公告)日：2012-01-05
申请号：US13163513
申请日：2011-06-17
申请人： Badri N. Varadarajan , Il Han Kim , Anand Dabak , Edward Mullins
发明人： Badri N. Varadarajan , Il Han Kim , Anand Dabak , Edward Mullins
IPC分类号： H03K7/08
CPC分类号： H03K7/08 , H04B3/54 , H04B2203/5416 , H04L25/4902
摘要： Systems and methods are disclosed for communicating on a pilot wire between Electric Vehicle Service Equipment (EVSE) and an Electric Vehicle (EV). The EVSE and EV exchange a Pulse Width Modulation (PWM) signal on the pilot wire to control charging operations of the EV. Data communications may also be transmitted on the pilot wire, such as between transmit and receive modems. The modems transmit communication signals either continuously, without regard to the state of the PWM signal, or only when the PWM is in an off-state. If transmitting while PWM is on, the modem needs a large coupling impedance and/or a large signal injection. To transmit only when the PWM is off, the modem may use a blocking diode in the coupling circuit or may synchronize to the pulses in the PWM signal.
摘要翻译：公开了用于在电动车辆服务设备（EVSE）和电动车辆（EV）之间的导线上通信的系统和方法。 EVSE和EV在导线上交换脉宽调制（PWM）信号，以控制EV的充电操作。数据通信也可以在导线上传输，例如在发射和接收调制解调器之间。调制解调器连续发送通信信号，而不考虑PWM信号的状态，或仅当PWM处于关闭状态时。如果在PWM打开时发送，则调制解调器需要大的耦合阻抗和/或大的信号注入。仅在PWM关闭时传输，调制解调器可以在耦合电路中使用阻塞二极管，或者可以与PWM信号中的脉冲同步。

2. 发明申请

US20110280261A1 Interleaver Design and Header Structure For ITU G.hnem 有权
标题翻译： ITU G.hnem的交织器设计和标题结构
公开(公告)号：US20110280261A1
公开(公告)日：2011-11-17
申请号：US13101938
申请日：2011-05-05
申请人： Badri N. Varadarajan , Anand Dabak , Il Han Kim
发明人： Badri N. Varadarajan , Anand Dabak , Il Han Kim
IPC分类号： H04J99/00
CPC分类号： H04L27/20 , H04L5/0007 , H04L27/2602 , H04L27/2647
摘要： Embodiments of the invention provide an interleaver design and header fields for ITU-T G.hnem. The header may comprise two parts that are separately encoded. A common header segment is encoded alone, and an embedded header segment is encoded with payload data. The interleaver operates on blocks having a size based upon a total number of input bits in an FEC codeword block, a total number of bits loaded on symbols that span a half mains cycle, or a maximum fragment size of 3072 bits. The blocks may be repeated before interleaving. Each block and its repetitions may be interleaved together, such as for header data, or each block and repetition may be interleaved separately, such as for payload data. Cyclic padding may be used on each block to create an integer number of symbols for transmission.
摘要翻译：本发明的实施例提供了用于ITU-T G.hnem的交织器设计和报头字段。标题可以包括分开编码的两个部分。公共头段被单独编码，并且嵌入的标题段用有效载荷数据进行编码。交织器对具有基于FEC码字块中的输入位的总数的大小的块，对跨越半电源周期的符号上加载的总位数或3072位的最大片段大小进行操作。可以在交织之前重复这些块。每个块及其重复可以交织在一起，诸如用于报头数据，或者每个块和重复可以被单独交织，诸如用于有效载荷数据。可以在每个块上使用循环填充来创建用于传输的整数个符号。

3. 发明授权

US09112753B2 Interleaver design and header structure for ITU G.hnem 有权
标题翻译： ITU G.hnem的交织器设计和标题结构
公开(公告)号：US09112753B2
公开(公告)日：2015-08-18
申请号：US13101938
申请日：2011-05-05
申请人： Badri N. Varadarajan , Anand Dabak , Il Han Kim
发明人： Badri N. Varadarajan , Anand Dabak , Il Han Kim
IPC分类号： H04J99/00 , H04L27/20 , H04L27/26 , H04L5/00
CPC分类号： H04L27/20 , H04L5/0007 , H04L27/2602 , H04L27/2647
摘要： Embodiments of the invention provide an interleaver design and header fields for ITU-T G.hnem. The header may comprise two parts that are separately encoded. A common header segment is encoded alone, and an embedded header segment is encoded with payload data. The interleaver operates on blocks having a size based upon a total number of input bits in an FEC codeword block, a total number of bits loaded on symbols that span a half mains cycle, or a maximum fragment size of 3072 bits. The blocks may be repeated before interleaving. Each block and its repetitions may be interleaved together, such as for header data, or each block and repetition may be interleaved separately, such as for payload data. Cyclic padding may be used on each block to create an integer number of symbols for transmission.
摘要翻译：本发明的实施例提供了用于ITU-T G.hnem的交织器设计和报头字段。标题可以包括分开编码的两个部分。公共头段被单独编码，并且嵌入的标题段用有效载荷数据进行编码。交织器对具有基于FEC码字块中的输入位的总数的大小的块，对跨越半电源周期的符号上加载的总位数或3072位的最大片段大小进行操作。可以在交织之前重复这些块。每个块及其重复可以交织在一起，诸如用于报头数据，或者每个块和重复可以被单独交织，诸如用于有效载荷数据。可以在每个块上使用循环填充来创建用于传输的整数个符号。

4. 发明申请

US20120236876A1 MAC PROTOCOLS WITH SUBBANDING 有权
标题翻译： MAC协议与SUBBANDING
公开(公告)号：US20120236876A1
公开(公告)日：2012-09-20
申请号：US13408521
申请日：2012-02-29
申请人： Kumaran Vijayasankar , Shu Du , Anand G. Dabak , Badri N. Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Shu Du , Anand G. Dabak , Badri N. Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04J3/16
CPC分类号： H04L12/413 , H04B3/54 , H04B3/56 , H04B2203/5416 , H04B2203/5466 , H04L12/2838 , H04L2012/2843
摘要： Systems and methods for designing, using, and/or implementing media access control (MAC) protocols with subbanding are described. In some embodiments, a method may include receiving a beacon packet during one of a plurality of beacon slots of a superframe, each beacon slot corresponding to one of a plurality of different downlink subbands. The method may also include identifying, based on the received beacon packet, contention access periods following the beacon slots, each of the contention access periods corresponding to one of a plurality of different uplink subbands. The method may further include transmitting an information packet over each of the plurality of uplink subbands during the contention access periods. Then, the method may include receiving, during a guaranteed time slot following the contention access periods, an indication of a selected one of the plurality of uplink subbands to be used in a subsequent communications.
摘要翻译：描述了用于设计，使用和/或实现具有子带的媒体访问控制（MAC）协议的系统和方法。在一些实施例中，一种方法可以包括在超帧的多个信标时隙之一期间接收信标分组，每个信标时隙对应于多个不同的下行链路子带中的一个。该方法还可以包括基于接收到的信标分组来识别在信标时隙之后的争用接入周期，每个竞争接入周期对应于多个不同的上行链路子带之一。该方法还可以包括在竞争访问周期期间在多个上行链路子带中的每一个上传输信息分组。然后，该方法可以包括在竞争访问周期之后的保证时隙期间接收要在后续通信中使用的多个上行链路子带中所选择的一个的指示。

5. 发明申请

US20120134395A1 Power Line Communications (PLC) Across Different Voltage Domains Using Multiple Frequency Subbands 审中-公开
标题翻译：电力线通信（PLC）跨越不同电压域使用多个频率子带
公开(公告)号：US20120134395A1
公开(公告)日：2012-05-31
申请号：US13300741
申请日：2011-11-21
申请人： Badri N. Varadarajan , Anand G. Dabak , Il Han Kim , Xiaolin Lu
发明人： Badri N. Varadarajan , Anand G. Dabak , Il Han Kim , Xiaolin Lu
IPC分类号： H04B3/54 , H04B17/00 , H04B1/38
CPC分类号： H04B3/542 , H04B2203/5408 , H04B2203/5416 , H04B2203/542
摘要： Systems and methods for implementing power line communications (PLC) across different voltage domains using multiple frequency subbands are described. From an end node's perspective (e.g., a PLC device), a method may include scanning a plurality of downlink subbands usable by a base node (e.g., a PLC router, etc.) to communicate with one or more PLC devices (e.g., other end nodes) from a medium voltage (MV) to a low voltage (LV) power line, and transmitting association request(s) to the base node that select and/or allow the base node to select one or more downlink subbands for use in subsequent communications. From the base node's perspective, the method may include selecting one or more of a plurality of uplink subbands for use in subsequent communications based on the received association request(s). In various implementations, the selection of downlink and/or uplink subbands may be based on signal-to-noise ratio (SNR) values and/or congestion indicators.
摘要翻译：描述了使用多个频率子带在不同电压域之间实现电力线通信（PLC）的系统和方法。从终端节点的观点（例如，PLC设备），一种方法可以包括扫描由基本节点（例如，PLC路由器等）使用的多个下行链路子带，以与一个或多个PLC设备（例如，其他终端节点）从中压（MV）到低电压（LV）电力线路，并且向基站节点发送关联请求，所述基站节点选择和/或允许基站节点选择一个或多个下行链路子带用于后续通讯。从基本节点的观点来看，该方法可以包括基于所接收到的关联请求来选择多个上行链路子带中的一个或多个以用于后续通信。在各种实现中，下行链路和/或上行链路子带的选择可以基于信噪比（SNR）值和/或拥塞指示符。

6. 发明申请

US20110255557A1 Coexistence of Prime, S-FSK and G3 Devices in Powerline Communications 有权
标题翻译： Prime，S-FSK和G3设备在电力线通信中的共存
公开(公告)号：US20110255557A1
公开(公告)日：2011-10-20
申请号：US13079858
申请日：2011-04-05
申请人： Badri N. Varadarajan , Anand G. Dabak , Il Han Kim , Donald P. Shaver
发明人： Badri N. Varadarajan , Anand G. Dabak , Il Han Kim , Donald P. Shaver
IPC分类号： H04J3/24
CPC分类号： H04L27/12 , H04B1/69 , H04B3/542 , H04L27/2601
摘要： Communication devices, such as base nodes and modems, that comply with two or more different standards operate on a shared communication channel. To avoid mutual interference, a base node operating under a first standard reserves time using a contention free period designation. The base node allows devices operating under a second standard to communicate during the reserved time by not assigning the contention free period to another device operating under the first standard. Alternatively, a device using the first standard may avoid interference from transmissions generated under the second standard by modifying data packets prior to transmission. A prefix corresponding to a preamble in the second standard is added to the beginning of the data packet created under the first standard. Devices operating under the second standard observe the prefix and recognize that the channel is active. The second-standard devices backoff from transmission thereby minimizing interference.
摘要翻译：符合两个或多个不同标准的通信设备，例如基础节点和调制解调器，在共享通信信道上运行。为了避免相互干扰，基站在第一标准预留时间内使用无竞争周期指定运行。基站节点允许在预留时间内通过不将无竞争周期分配给在第一标准下运行的另一设备来在第二标准下运行的设备进行通信。或者，使用第一标准的设备可以通过在传输之前修改数据分组来避免在第二标准下产生的传输的干扰。将与第二标准中的前导码相对应的前缀添加到在第一标准下创建的数据包的开头。在第二个标准下运行的设备观察前缀并识别该通道是活动的。第二标准设备从传输中退出，从而最小化干扰。

7. 发明申请

US20110026621A1 OFDM TRANSMISSION METHODS IN THREE PHASE MODES 有权
标题翻译： OFDM传输方法在三相模式中
公开(公告)号：US20110026621A1
公开(公告)日：2011-02-03
申请号：US12839315
申请日：2010-07-19
申请人： Il Han Kim , Badri N. Varadarajan , Anand G. Dabak
发明人： Il Han Kim , Badri N. Varadarajan , Anand G. Dabak
IPC分类号： H04K1/10 , H04L27/00
CPC分类号： H04B3/542 , H04B3/56 , H04B2203/5416 , H04B2203/542 , H04B2203/5466 , H04L5/0023 , H04L25/0204 , H04L25/0248 , H04L25/0276 , H04L27/2626 , H04L27/2647
摘要： Systems and methods for power line transmission are disclosed in which transmitters and receivers are connected to one or more phases of the power line. At least one symbol stream to be transmitted on the power line network is generated. The at least one symbol stream is scaled using a weight vector to generate a plurality of scaled symbol streams. The weight vector comprises a plurality of weights, each corresponding to a phase of the power line network. Each of the scaled symbol streams are transmitted on a corresponding phase of the power line network. A zero crossing detector identifies phase information for a receiver. A concentrator adapts signals to be sent to the receiver based upon the phase associated with the receiver.
摘要翻译：公开了用于电力线传输的系统和方法，其中发射器和接收器连接到电力线的一个或多个相。生成要在电力线网络上发送的至少一个符号流。使用权重向量来缩放至少一个符号流以生成多个缩放的符号流。权重向量包括多个权重，每个权重对应于电力线网络的相位。每个缩放的符号流在电力线网络的相应相位上传输。零交叉检测器识别接收机的相位信息。集中器根据与接收器相关的相位来调整要发送到接收机的信号。

8. 发明申请

US20120063497A1 Systems And Methods for Implementing Application Profiles and Device Classes in Power Line Communication (PLC) Environments 有权
标题翻译：在电力线通信（PLC）环境中实现应用程序类型和设备类的系统和方法
公开(公告)号：US20120063497A1
公开(公告)日：2012-03-15
申请号：US13230419
申请日：2011-09-12
申请人： Il Han Kim , Anand G. Dabak , Badri N. Varadarajan
发明人： Il Han Kim , Anand G. Dabak , Badri N. Varadarajan
IPC分类号： H04B3/54 , H04B17/00 , H04B1/38
CPC分类号： H04B3/542 , H04B2203/5408 , H04B2203/5416 , H04L47/78
摘要： Systems and methods for application profiles and device classes in power line communications (PLCs) are described. In some embodiments, a PLC device may include a processor and a memory coupled to the processor. The memory may be configured to store program instructions, which may be executable by the processor to cause the PLC device to communicate with a higher-level PLC apparatus over a power line using a frequency band. The frequency band may be selected based upon an application profile and/or a device class associated with the PLC device. In some implementations, the higher-level PLC apparatus may include a PLC gateway or a data concentrator, and the PLC device may include a PLC modem or the like. Examples of application profiles include access communications, in-premises connectivity, AC charging, and/or DC charging. Device classes may represent a minimum communication data rate and/or an operating frequency band restriction of the PLC device.
摘要翻译：描述了电力线通信（PLC）中的应用配置文件和设备类的系统和方法。在一些实施例中，PLC设备可以包括处理器和耦合到处理器的存储器。存储器可以被配置为存储可由处理器执行的程序指令，以使PLC设备通过使用频带的电力线路与较高级别的PLC设备进行通信。可以基于与PLC设备相关联的应用简档和/或设备类别来选择频带。在一些实现中，较高级的PLC设备可以包括PLC网关或数据集中器，并且PLC设备可以包括PLC调制解调器等。应用简档的示例包括接入通信，室内连接，AC充电和/或DC充电。设备类可以表示PLC设备的最小通信数据速率和/或操作频带限制。

9. 发明授权

US08406171B2 Network MIMO reporting, control signaling and transmission 有权
标题翻译：网络MIMO报告，控制信令和传输
公开(公告)号：US08406171B2
公开(公告)日：2013-03-26
申请号：US12534851
申请日：2009-08-03
申请人： Eko N. Onggosanusi , Runhua Chen , Il Han Kim , Badri N. Varadarajan , Anand G. Dabak , Charles K. Sestok
发明人： Eko N. Onggosanusi , Runhua Chen , Il Han Kim , Badri N. Varadarajan , Anand G. Dabak , Charles K. Sestok
IPC分类号： H04W40/00
CPC分类号： H04B7/024 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L5/0023 , H04L5/0037 , H04L5/006
摘要： A coordinated multipoint transmitter is for use with a network MIMO super-cell and includes a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points. Additionally, the coordinated multipoint transmitter also includes a transmission unit configured to transmit the multipoint transmission using the set of transmission points. Additionally, a coordinated transmission receiver is for use with a network MIMO super-cell and includes a reception unit configured to receive a multipoint transmission corresponding to a set of transmission points. The coordinated transmission receiver also includes a processing unit configured to process the multipoint transmission from the set of transmission points.
摘要翻译：协调的多点发射机用于网络MIMO超小区，并且包括配置为提供联合链路处理以协调对应于一组传输点的多点传输的协调单元。此外，协调多点发射机还包括被配置为使用该组传输点来发送多点传输的传输单元。此外，协调传输接收机用于网络MIMO超小区，并且包括被配置为接收与一组传输点相对应的多点传输的接收单元。协调传输接收机还包括处理单元，其被配置为处理来自该组传输点的多点传输。

10. 发明申请

US20110267177A1 Effective Low Voltage to Medium Voltage Transmission on PRIME Band 有权
标题翻译： PRIME频段有效低压至中压传输
公开(公告)号：US20110267177A1
公开(公告)日：2011-11-03
申请号：US13087116
申请日：2011-04-14
申请人： Il Han Kim , Badri N. Varadarajan , Anand G. Dabak
发明人： Il Han Kim , Badri N. Varadarajan , Anand G. Dabak
IPC分类号： G08C19/16
CPC分类号： H04B3/56 , H02J3/00 , H04B2203/5483
摘要： Coupling and interface circuits for powerline modems are disclosed. A powerline modem may be coupled to a low voltage (LV) line or a medium voltage (MV) line using a circuit that is designed to compensate for signal attenuation and loss that is created by the a LV/MV transformer and/or a MV coupler. In one embodiment, separate coupling transformers may be used by the modem for reception and transmission. In other embodiments, a capacitance is switched on the transmission line before the modem transmits to lower the line impedance.
摘要翻译：公开了用于电力线调制解调器的耦合和接口电路。电力线调制解调器可以使用被设计为补偿由LV / MV变压器和/或MV产生的信号衰减和损耗的电路而耦合到低电压（LV）线路或中压（MV）线路耦合器在一个实施例中，分离的耦合变压器可以由调制解调器用于接收和发送。在其他实施例中，在调制解调器发送之前，在传输线路上切换电容以降低线路阻抗。

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