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1. 发明申请

US20120320996A1 PREAMBLE SEQUENCE EXTENSION 有权
标题翻译：前导序列扩展
公开(公告)号：US20120320996A1
公开(公告)日：2012-12-20
申请号：US13526227
申请日：2012-06-18
申请人： ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , RAMANUJA VEDANTHAM , KUMARAN VIJAYASANKAR , GANG XU
发明人： ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , RAMANUJA VEDANTHAM , KUMARAN VIJAYASANKAR , GANG XU
IPC分类号： H04B3/00
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5425 , H04B2203/5495
摘要： A method of powerline communications between a plurality of nodes on a powerline communications (PLC) channel including a first node and a second node. At least one communication quality measure is determined for the PLC channel. Based on the communication quality measure, a preamble of a data frame is dynamically switched between a reference preamble having a reference symbol length including a reference number of syncP symbols and a reference number of syncM symbols and at least a first extended preamble having an extended symbol length that is greater than (>) the reference symbol length. The data frame is then transmitted on the PLC channel.
摘要翻译：一种在包括第一节点和第二节点的电力线通信（PLC）信道上的多个节点之间的电力线通信的方法。为PLC通道确定至少一个通信质量度量。基于通信质量测量，在具有包括参考数量的syncP符号的参考符号长度和参考数量的syncM符号的参考前同步码和至少具有扩展符号的第一扩展前同步码之间动态地切换数据帧的前导码长度大于（>）参考符号长度。然后在PLC通道上传输数据帧。

2. 发明申请

US20120320995A1 CO-EXISTENCE OF MULTI-CARRIER AND SINGLE CARRIER COMMUNICATION STANDARDS ON SHARED PLC CHANNEL 审中-公开
标题翻译：多载波和单载波通信标准在共享PLC通道上的共存
公开(公告)号：US20120320995A1
公开(公告)日：2012-12-20
申请号：US13489163
申请日：2012-06-05
申请人： ANAND G. DABAK , TARKESH PANDE , RAMANUJA VEDANTHAM
发明人： ANAND G. DABAK , TARKESH PANDE , RAMANUJA VEDANTHAM
IPC分类号： H04B15/00 , H04B3/46
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5425 , H04B2203/5495
摘要： A method for reducing interference on a shared powerline communications (PLC) channel in a PLC network including a first node using a multi-carrier modulation communication standard operating at a first and second carrier frequency and a second node using a single-carrier modulation communication standard operating based on a single-carrier frequency. (i) Non-overlapping transmission times are determined for transmissions by the first node relative to second node transmission times for transmissions from the second node or (ii) non-overlapping frequencies are selected for the first carrier frequency and second carrier frequency which do not overlap with the single-carrier frequency or frequencies based on the single-carrier frequency. The second node transmits using the single-carrier modulation communication standard at the second node transmission times. The first node transmits using the multi-carrier modulation communication standard at the non-overlapping transmission times or non-overlapping frequencies.
摘要翻译：一种用于减少PLC网络中的共享电力线通信（PLC）信道上的干扰的方法，所述PLC网络包括使用以第一和第二载波频率工作的多载波调制通信标准的第一节点和使用单载波调制通信标准的第二节点基于单载波频率工作。（i）确定第一节点相对于来自第二节点的传输的第二节点传输时间的传输的非重叠传输时间，或者（ii）对于不是的第一载波频率和第二载波频率选择非重叠频率与基于单载波频率的单载波频率或频率重叠。第二节点在第二节点传输时使用单载波调制通信标准传输。第一节点使用多载波调制通信标准在非重叠发射次数或非重叠频率下发射。

3. 发明申请

US20120320932A1 DATA FRAME FOR PLC HAVING DESTINATION ADDRESS IN THE PHY HEADER 有权
标题翻译：数据帧用于PLC中的目标地址在PHY头
公开(公告)号：US20120320932A1
公开(公告)日：2012-12-20
申请号：US13528667
申请日：2012-06-20
申请人： GANG XU , RAMANUJA VEDANTHAM , KUMARAN VIJAYASANKAR , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , XIAOLIN LU
发明人： GANG XU , RAMANUJA VEDANTHAM , KUMARAN VIJAYASANKAR , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , XIAOLIN LU
IPC分类号： H04L29/02 , H04B3/54
CPC分类号： H04L69/22 , H04B3/54 , H04B3/542 , H04B2203/5408
摘要： A method of powerline communications including a first node and at least a second node on a PLC channel in a PLC network. The first node sends a physical layer (PHY) data frame on the PLC channel including a preamble, PHY header, a MAC header and a MAC payload. The PHY header includes a destination address field having a destination address therein. The second node receives the data frame. The second node compares its network address to the destination address before decoding the MAC header and MAC payload, providing power savings by allowing the second node to not decode the MAC header or MAC payload if its network address does not match the destination address in the PHY header of the data frame.
摘要翻译：一种电力线通信方法，包括PLC网络中PLC通道上的第一节点和至少第二节点。第一节点在PLC信道上发送物理层（PHY）数据帧，包括前导码，PHY头，MAC头和MAC有效载荷。 PHY标头包括其中具有目的地地址的目的地地址字段。第二个节点接收数据帧。第二节点在解码MAC报头和MAC有效载荷之前将其网络地址与目标地址进行比较，通过允许第二节点如果其网络地址与PHY中的目标地址不匹配，则不解码MAC报头或MAC有效载荷，从而提供功率节省数据帧的头。

4. 发明申请

US20120320931A1 DYNAMIC SELECTION OF MAC INTERFRAME PARAMETERS IN PLC NETWORKS 审中-公开
标题翻译： PLC网络中MAC帧间参数的动态选择
公开(公告)号：US20120320931A1
公开(公告)日：2012-12-20
申请号：US13524505
申请日：2012-06-15
申请人： RAMANUJA VEDANTHAM , KUMARAN VIJAYASANKAR , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM
发明人： RAMANUJA VEDANTHAM , KUMARAN VIJAYASANKAR , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM
IPC分类号： H04L12/413
CPC分类号： H04L12/413 , G05B15/02 , G05B19/052 , G05B2219/15018
摘要： A method of powerline communications (PLC) in a PLC network having a plurality of nodes including a first node and a second node. A first node receives a PLC signal from the second node. The first node decodes a media access control (MAC) frame of the PLC signal to determine a frame size of the MAC frame. Based on the frame size, dynamic selection of a Response Inter-Frame Space (RIFS) value from at least two candidate RIFS values and a Contention Inter-frame Space (CIFS) value from at least two candidate CIFS values is provided.
摘要翻译：一种具有包括第一节点和第二节点的多个节点的PLC网络中的电力线通信（PLC）的方法。第一节点从第二节点接收PLC信号。第一节点解码PLC信号的媒体访问控制（MAC）帧以确定MAC帧的帧大小。基于帧大小，提供来自至少两个候选RIFS值的响应帧间空间（RIFS）值和来自至少两个候选CIFS值的竞争帧间空间（CIFS）值的动态选择。

5. 发明申请

US20120327770A1 FLOW CONTROL FOR POWERLINE COMMUNICATIONS 有权
标题翻译： POWERLINE通信流量控制
公开(公告)号：US20120327770A1
公开(公告)日：2012-12-27
申请号：US13529146
申请日：2012-06-21
申请人： KUMARAN VIJAYASANKAR , RAMANUJA VEDANTHAM , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM
发明人： KUMARAN VIJAYASANKAR , RAMANUJA VEDANTHAM , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM
IPC分类号： H04L12/24 , H04L12/26 , H04B3/54
CPC分类号： H04L47/266 , H04B3/542 , H04B2203/5408 , H04L47/12 , H04L47/127 , H04L47/30 , H04L47/32 , Y02D50/10
摘要： A method of powerline communications in a powerline communications (PLC) network including a first node and at least a second node. The first node transmits a data frame to the second node over a PLC channel. The second node has a data buffer for storing received information. The second node runs a flow control algorithm which determines a current congestion condition or a projected congestion condition of the data buffer based on at least one congestion parameter. The current congestion condition and projected congestion condition include nearly congested and fully congested. When the current or projected congestion condition is either nearly congested or fully congested, the second node transmits a BUSY including frame over the PLC channel to at least the first node. The first node defers transmitting of any frames to the second node for a congestion clearing wait time.
摘要翻译：一种在包括第一节点和至少第二节点的电力线通信（PLC）网络中的电力线通信的方法。第一个节点通过PLC通道将数据帧发送到第二个节点。第二节点具有用于存储接收到的信息的数据缓冲器。第二节点运行流控制算法，其基于至少一个拥塞参数确定数据缓冲器的当前拥塞状况或预计拥塞状况。目前的拥挤状况和预计的拥挤情况包括几乎拥挤和充分拥挤。当当前或预计的拥塞状况几乎拥塞或完全拥塞时，第二节点将包括在PLC信道上的帧的BUSY发送到至少第一节点。第一个节点将拥塞清除等待时间的任何帧的发送延迟到第二节点。

6. 发明申请

US20120314744A1 PHY PAYLOAD OVER MULTIPLE TONE MASKS USING SINGLE TONE MASK PHY HEADER INFORMATION 有权
标题翻译： PHY PAYLOAD多个音调掩码使用单音调掩码PHY头信息
公开(公告)号：US20120314744A1
公开(公告)日：2012-12-13
申请号：US13493268
申请日：2012-06-11
申请人： RAMANUJA VEDANTHAM , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , KUMARAN VIJAYASANKAR
发明人： RAMANUJA VEDANTHAM , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , KUMARAN VIJAYASANKAR
IPC分类号： H04B3/54 , H04B1/38
CPC分类号： H04B3/542 , H04B2203/5408 , H04B2203/5445 , H04L5/0007 , H04L5/0037 , H04L5/0094 , H04L27/2602 , H04L27/2613 , H04L27/2666 , H04L69/22
摘要： A method of powerline communications (PLC) includes compiling a data frame for physical layer (PHY) by a first communications device at a first communications node on a powerline of a PLC network. The data frame includes a single tone PHY header portion and a data payload portion in a set of tones including at least one tone having a frequency different from a frequency of the single tone. The PHY header portion includes tone mask identification information identifying the set of tones. The first communications device transmits the data frame over the powerline to a second communications device at a second communications node on the powerline. The second communications device receives the data frame, and decodes the data payload using the tone mask identification information in the PHY header portion.
摘要翻译：电力线通信（PLC）的方法包括在PLC网络的电力线上的第一通信节点处由第一通信设备编译用于物理层（PHY）的数据帧。数据帧包括一组音调中的单音PHY头部部分和数据有效载荷部分，包括具有与单音频率不同的频率的至少一个音调。 PHY报头部分包括识别该组音调的色调掩码识别信息。第一通信设备通过电力线将数据帧发送到电力线上的第二通信节点处的第二通信设备。第二通信设备接收数据帧，并使用PHY报头部分中的色调掩码识别信息解码数据有效载荷。

7. 发明申请

US20120324322A1 POWERLINE COMMUNICATION FRAMES HAVING CRC WITHIN HEADER 有权
标题翻译：在HEADER中具有CRC的POWERLINE通信框架
公开(公告)号：US20120324322A1
公开(公告)日：2012-12-20
申请号：US13528191
申请日：2012-06-20
申请人： RAMANUJA VEDANTHAM , GANG XU , KUMARAN VIJAYASANKAR , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , XIAOLIN LU
发明人： RAMANUJA VEDANTHAM , GANG XU , KUMARAN VIJAYASANKAR , ANAND G. DABAK , TARKESH PANDE , IL HAN KIM , XIAOLIN LU
IPC分类号： H03M13/09 , G06F11/10
CPC分类号： G06F11/1004 , H03M13/09
摘要： A method of powerline communications including a first node and at least a second node on a powerline communications (PLC) channel in a PLC network. The first node sends a physical layer (PHY) data frame on the PLC channel including a preamble, a PHY header, a MAC header and a MAC payload. The MAC header includes a Cyclic Redundancy Check (CRC) field (MH-CRC field). The second node receives the data frame, parses the MAC header to reach the MH-CRC field, and performs CRC verification using the MH-CRC field to verify the MAC header. If the CRC verification is successful, (i) the second node parses another portion of the MAC header to identify a destination address of the data frame and (ii) to determine whether the data frame is intended for the second node from the destination address.
摘要翻译：一种包括PLC网络中电力线通信（PLC）通道上的第一节点和至少第二节点的电力线通信的方法。第一节点在PLC信道上发送物理层（PHY）数据帧，包括前同步码，PHY报头，MAC报头和MAC有效载荷。 MAC报头包括循环冗余校验（CRC）字段（MH-CRC字段）。第二节点接收数据帧，解析MAC报头到达MH-CRC字段，并使用MH-CRC字段进行CRC校验，以验证MAC报头。如果CRC验证成功，则（i）第二节点解析MAC报头的另一部分以识别数据帧的目的地址，以及（ii）从目的地地址确定数据帧是否用于第二节点。

8. 发明申请

US20090257523A1 PSEUDORANDOM SEQUENCE GENERATION FOR OFDM CELLULAR SYSTEMS 有权
标题翻译： OFDM细胞系统的PSEUDORANDOM序列生成
公开(公告)号：US20090257523A1
公开(公告)日：2009-10-15
申请号：US12326878
申请日：2008-12-02
申请人： BADRI VARADARAJAN , ANAND G. DABAK , TARKESH PANDE , EKO N. ONGGOSANUSI
发明人： BADRI VARADARAJAN , ANAND G. DABAK , TARKESH PANDE , EKO N. ONGGOSANUSI
IPC分类号： H04L27/00
CPC分类号： H04L5/0048 , H04B1/04 , H04L23/02 , H04L25/0202 , H04L27/2607 , H04L27/2613 , H04L27/2649
摘要： In one embodiment, a transmitter includes a binary sequence generator unit configured to provide a sequence of reference signal bits, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to the transmitter and one or more time indices of the sequence. The transmitter also include a mapping unit that transforms the sequence of reference signal bits into a complex reference signal, and a transmit unit configured to transmit the complex reference signal. In another embodiment, a receiver includes a receive unit configured to receive a complex reference signal and a reference signal decoder unit configured to detect a sequence of reference signal bits from the complex reference signal, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to a transmitter and one or more time indices of the sequence.
摘要翻译：在一个实施例中，发射机包括被配置为提供参考信号比特序列的二进制序列发生器单元，其中该序列是小区识别参数的不可分离的功能，对应于发射机的循环前缀模式和一个或多个时间指数序列。发射机还包括将参考信号比特序列变换为复参考信号的映射单元，以及配置成发送复基准信号的发射单元。在另一实施例中，接收机包括被配置为接收复参考信号的接收单元和被配置为从复参考信号检测参考信号位序列的参考信号解码器单元，其中该序列是小区识别参数的不可分离的函数，对应于发射机的循环前缀模式和序列的一个或多个时间索引。

9. 发明申请

US20120327987A1 EXTENDED DURATION PHY HEADER FOR PLC 审中-公开
标题翻译： PLC延长时间PHY头
公开(公告)号：US20120327987A1
公开(公告)日：2012-12-27
申请号：US13529107
申请日：2012-06-21
申请人： ANAND G. DABAK , TARKESH PANDE , IL HAN KIM
发明人： ANAND G. DABAK , TARKESH PANDE , IL HAN KIM
IPC分类号： H04B3/54 , H04B1/38
CPC分类号： H04B3/542 , H04B2203/5408
摘要： A method of powerline communications (PLC) over a PLC channel including a first node and at least a second node utilizes an algorithm that compiles frames having extended duration physical layer (PHY) headers. A duration or estimated duration of a null of the PLC channel is provided. An extended duration PHY header is compiled including a plurality of symbols and bits having a time duration of the PHY header of at least fifty percent (50%) more than the duration or estimated duration of the null. The compiling includes symbol repetition of at least a portion of the plurality of symbols or bit repetition of at least a portion of the plurality of bits. The first node transmits a frame including a preamble and the extended duration PHY header over the PLC channel to at least the second node.
摘要翻译：通过包括第一节点和至少第二节点的PLC信道上的电力线通信（PLC）的方法利用编译具有延长的持续时间物理层（PHY）报头的帧的算法。提供PLC通道的空值的持续时间或估计持续时间。编译扩展持续时间PHY报头，其包括多个符号和比特，其具有超过空值的持续时间或估计持续时间的至少百分之五十（50％）的PHY报头的持续时间。编译包括多个符号的至少一部分的符号重复或多个比特的至少一部分的比特重复。第一节点通过PLC信道将包括前同步码和扩展持续时间PHY报头的帧发送到至少第二节点。

10. 发明申请

US20120257682A1 POWER LINE COMMUNICATIONS DURING SELECTED TIME INTERVALS 有权
标题翻译：电力线通信在选定的时间间隔期间
公开(公告)号：US20120257682A1
公开(公告)日：2012-10-11
申请号：US13442248
申请日：2012-04-09
申请人： ANAND G. DABAK , GANG XU
发明人： ANAND G. DABAK , GANG XU
IPC分类号： H04B3/54
CPC分类号： H04B3/54 , H04B2203/542
摘要： A method of power line communications includes obtaining timing information for an AC mains signal transmitted on a power line in a power line communication (PLC) system that includes at least one receiver and at least one other device connected on the power line which provides variable loading during cycles of the AC mains signal. A first loading interval within at least a first cycle of the cycles having lower loading and at least a second loading interval within said first cycle having higher loading are identified using the timing information. At least one data packet is transmitted only during the first loading interval over the power line to the receiver.
摘要翻译：电力线通信的方法包括获得在包括至少一个接收器的电力线通信（PLC）系统中的电力线上传输的AC电力信号的定时信息，以及连接在电力线上的至少一个其他设备，其提供可变负载在交流电源信号的周期。使用定时信息来识别在具有较高负载的所述第一周期内具有较低负载和至少第二负载间隔的周期的至少第一周期内的第一加载间隔。至少一个数据分组仅在电力线上的第一加载间隔期间被发送到接收机。

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