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1. 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。

2. 发明申请

US20100027456A1 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：US20100027456A1
公开(公告)日：2010-02-04
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： H04H20/71 , H04L27/28
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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明申请

US20110252293A1 Concatenated Coding Architecture for G.hnem PHY 审中-公开
标题翻译： G.hnem PHY的并行编码体系结构
公开(公告)号：US20110252293A1
公开(公告)日：2011-10-13
申请号：US13084348
申请日：2011-04-11
申请人： Badri N. Varadarajan , Anand G. Dabak , Il Han Kim
发明人： Badri N. Varadarajan , Anand G. Dabak , Il Han Kim
IPC分类号： H03M13/15 , G06F11/10
CPC分类号： H03M13/2936 , H04L1/0042 , H04L1/0057 , H04L1/0065
摘要： Embodiments provide a method for determining the number of parity bytes that are added by a Reed-Solomon encoder. The number of parity bytes are equivalent to the error correcting capability of the Reed-Solomon code. The number of parity bytes is based on the payload length or the information block size used in the Reed-Solomon encoder. Other factors may also be used to make this choice.
摘要翻译：实施例提供了一种用于确定由Reed-Solomon编码器添加的奇偶校验字节数的方法。奇偶校验字节的数量等于Reed-Solomon码的纠错能力。奇偶校验字节的数量基于Reed-Solomon编码器中使用的有效载荷长度或信息块大小。其他因素也可能用于做出选择。

9. 发明授权

US09000897B2 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）环境中实现应用配置文件和设备类的系统和方法
公开(公告)号：US09000897B2
公开(公告)日：2015-04-07
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： H04B1/38 , H04B3/54 , H04B17/00
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。

10. 发明授权

US08923416B2 Symbol-level repetition coding in power line communications 有权
标题翻译：电力线通信中的符号级重复编码
公开(公告)号：US08923416B2
公开(公告)日：2014-12-30
申请号：US13267300
申请日：2011-10-06
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： H04B3/00 , H03H7/30 , H04W4/00 , H04B3/54 , H04L1/08 , H04L1/00
CPC分类号： H04L1/08 , H04B3/54 , H04B3/546 , H04B2203/5408 , H04B2203/5425 , H04B2203/5433 , H04B2203/5466 , H04L1/0059 , H04L1/0065
摘要： Systems and methods for implementing symbol-level repetition coding in power line communications (PLC) are described. In some embodiments, these systems and methods may provide reliable communication in severe channel environments of PLC networks, at least in part, by changing the forward error correction (FEC) used by various devices operating within current PLC systems. For example, a method may include receiving a PLC signal and applying convolutional encoding to the received signal, the convolutional encoding producing an encoded signal. The method may also include performing a subcarrier modulation operation upon the encoded signal, the subcarrier modulation operation producing a modulated signal. The method may further include applying symbol-level repetition coding to the modulated signal, the symbol-level repetition coding producing a repetitious signal. In some cases, one or more distinct repetition patterns may be applied to different symbols or portions thereof. The repetitious signal may then be transmitted over a power line.
摘要翻译：描述了在电力线通信（PLC）中实现符号级重复编码的系统和方法。在一些实施例中，这些系统和方法可以至少部分地通过改变在当前PLC系统中操作的各种设备使用的前向纠错（FEC）来在PLC网络的严酷信道环境中提供可靠的通信。例如，一种方法可以包括接收PLC信号并对接收到的信号应用卷积编码，卷积编码产生编码信号。该方法还可以包括对编码信号执行子载波调制操作，产生调制信号的子载波调制操作。该方法还可以包括对调制信号应用符号级重复编码，产生符号级重复编码产生重复信号。在一些情况下，可以将一个或多个不同的重复图案应用于不同的符号或其部分。然后可以通过电力线传输重复信号。

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