-
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。
-
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
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。
-
公开(公告)号：US20120320931A1
公开(公告)日：2012-12-20
申请号：US13524505
申请日：2012-06-15
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。
-
公开(公告)号：US20120327770A1
公开(公告)日：2012-12-27
申请号：US13529146
申请日：2012-06-21
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。
-
5.发明申请PHY PAYLOAD OVER MULTIPLE TONE MASKS USING SINGLE TONE MASK PHY HEADER INFORMATION 有权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
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。
-
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
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。
-
7.发明申请CO-EXISTENCE OF MULTI-CARRIER AND SINGLE CARRIER COMMUNICATION STANDARDS ON SHARED PLC CHANNEL 审中-公开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
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。
-
公开(公告)号：US20130194965A1
公开(公告)日：2013-08-01
申请号：US13473359
申请日：2012-05-16
摘要： A method of communications in a network having plurality of nodes including a base node (BN) and a plurality of levels (i) each including at least one service node (SN). The number (Ni(t)) of SNs registered in each of a plurality of i are determined. The current Keep Alive timer out (KA_TO) value for a KA timer at the BN is dynamically adjusted to an updated KA_TO value based on Ni(t) and i. Dynamically adjusting KA_TO values reduces the KA message overhead the network compared to known KA_TO value implementations.
摘要翻译： 一种具有多个节点的网络中的通信方法，所述多个节点包括基本节点（BN）和多个级别（i），每个级别包括至少一个服务节点（SN）。 确定登记在多个i中的每一个中的SN的数量（Ni（t））。 基于Ni（t）和i，动态调整BN处的KA定时器的当前Keep Alive定时器输出（KA_TO）值为更新的KA_TO值。 与已知的KA_TO值实现相比，动态调整KA_TO值可以降低网络的KA消息开销。
-
公开(公告)号：US20120300700A1
公开(公告)日：2012-11-29
申请号：US13473323
申请日：2012-05-16
CPC分类号： H02J13/0006 , H04L43/0811 , H04L43/10 , H04L47/28 , H04L67/12 , H04L69/28 , H04W84/18 , Y04S40/168
摘要： A method of communicating in a network having a plurality of nodes including a base node (BN), and a plurality of service nodes (SNs) having at least one switch node (SW) and at least one terminal node (TN). The method includes at least one of a) a first SN from the plurality of SNs receiving (i) a data/ALV_B/ACK frame from the BN or (ii) a beacon from the BN or SW, and restarting a first KA timer at the first SN upon (i) or (ii), and b) restarting an ALV_S timer at the BN for the first SN upon receiving a data/ALV_S/ACK frame from the first SN.
摘要翻译： 一种在具有多个节点的网络中通信的方法，所述多个节点包括基本节点（BN）以及具有至少一个交换节点（SW）和至少一个终端节点（TN）的多个服务节点（SN）。 所述方法包括以下中的至少一个：a）来自所述多个SN的第一SN接收（i）来自所述BN的数据/ ALV_B / ACK帧，或者（ii）来自所述BN或SW的信标，以及重新启动第一KA定时器 （i）或（ii）中的第一SN，以及b）当从第一SN接收到数据/ ALV_S / ACK帧时，在BN处为第一SN重新启动ALV_S定时器。
-
10.发明申请CLIENT' DEVICE POWER REDUCTION IN WIRELESS NETWORKS HAVING NETWORK-COMPUTED CLIENT' LOCATION 审中-公开具有网络计算机客户端位置的无线网络中的客户设备功率降低公开(公告)号：US20120106418A1
公开(公告)日：2012-05-03
申请号：US13282707
申请日：2011-10-27
CPC分类号： H04W74/04 , H04W52/0216 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/164 , Y02D70/22
摘要： A method of reducing client power consumption in a wireless network including a network server which provides computed client' locations, at least one access point (AP), and a plurality of wireless stations (STAs) including a first wireless station (STA1). The AP periodically sends beacon frames that span a beacon period, wherein at least a first beacon frame is sent during the beacon period. The STA1 sends a location request frame to the AP requesting a STA1 location. During the beacon period the STA1 wakes up from a powersave (PS) mode or a sleep mode and sends a PSPoll frame to the AP. Responsive to the PSPoll frame, the AP replies with a priority response being a data frame including a location response packet including the STA1 location or a Null frame if the STA1 location is not available.
摘要翻译： 一种降低无线网络中包括提供计算的客户端位置的网络服务器，至少一个接入点（AP）以及包括第一无线站（STA1）的多个无线站（STA））的客户端功耗的方法。 AP周期性地发送跨越信标周期的信标帧，其中在信标周期期间发送至少第一信标帧。 STA1向请求STA1位置的AP发送位置请求帧。 在信标期间，STA1从功率（PS）模式或睡眠模式唤醒，并向AP发送PSPoll帧。 响应于PSPoll帧，AP以优先级响应作为包括包括STA1位置的位置响应分组的数据帧或者如果STA1位置不可用则为空帧的数据帧。
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.03 秒)
