公开(公告)号：US08879580B2

公开(公告)日：2014-11-04

申请号：US13161057

申请日：2011-06-15

Applicant: Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04J3/24 ,  H04L12/43

CPC classification number: H04W28/065 ,  H04L1/1854 ,  H04W28/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

Abstract: A method of communications for a coexisting wireless network including a wireless combination (combo) device communicating via a first wireless network and second wireless network, and a first wireless device on the first network. During an activity interval for the second network (i) a transmit (Tx) time interval is longer in duration than a Tx packet duration and/or (ii) a receive (Rx) time interval is longer in duration than a Rx packet duration to provide remaining time. A frame aggregated packet is used on the first network that includes a plurality of data packets and a dummy packet or spoofing so that the frame aggregated packet is extended in time or indicates an extension sufficient to overlap the Tx time interval or Rx time interval. The combo device transmits or receives an acknowledgement (ACK) on the first network during the activity interval for the second wireless network.

Abstract translation: 一种用于共存无线网络的通信方法，包括经由第一无线网络和第二无线网络进行通信的无线组合（组合）设备，以及第一网络上的第一无线设备。 在第二网络的活动间隔期间（i）发射（Tx）时间间隔的持续时间比Tx分组持续时间长，和/或（ii）持续时间比Rx分组持续时间长的接收（Rx）时间间隔 提供剩余时间。 在包括多个数据分组和虚拟分组或欺骗的第一网络上使用帧聚合分组，使得帧聚合分组在时间上被扩展或指示足以与Tx时间间隔或Rx时间间隔重叠的扩展。 组合设备在第二无线网络的活动间隔期间在第一网络上发送或接收确认（ACK）。

公开(公告)号：US08830868B2

公开(公告)日：2014-09-09

申请号：US13473359

申请日：2012-05-16

Applicant: Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Ram Krishnan

Inventor： Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Ram Krishnan

IPC: H04L12/28

CPC classification number: H04W76/25 ,  H04W84/18

Abstract: 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.

Abstract translation: 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：US20140211755A1

公开(公告)日：2014-07-31

申请号：US13461758

申请日：2012-05-01

Applicant: Ramanuja Vedantham ,  Sandeep Bhadra ,  Shantanu Kangude ,  Seung Baek

Inventor： Ramanuja Vedantham ,  Sandeep Bhadra ,  Shantanu Kangude ,  Seung Baek

IPC: H04W36/24

CPC classification number: H04W36/24 ,  H04W36/02

Abstract: This invention employs an inherent tradeoff in a radio bearer dependent data handling method for intra-E-UTRA handoffs. For user equipment using real time data, the source node forwards to the target node not yet acknowledged real time service data units and disconnects. This makes the handoff latency short at the expense of data traffic between nodes. For user equipment not needing real time data, the source node continues to receive user equipment acknowledgements during a time out period and only forwards service data units acknowledged during the time out period. This reduces X2 interface traffic between the source and target nodes but extends the handoff latency.

Abstract translation: 本发明在用于E-UTRA切换的无线载体相关数据处理方法中采用固有的权衡。 对于使用实时数据的用户设备，源节点向目标节点转发尚未确认的实时业务数据单元和断开连接。 这使得切换延迟短于节点之间的数据流量。 对于不需要实时数据的用户设备，源节点在超时期间继续接收用户设备确认，只转发在超时期间确认的业务数据单元。 这减少了源节点和目标节点之间的X2接口流量，但是扩展了切换延迟。

公开(公告)号：US08787404B2

公开(公告)日：2014-07-22

申请号：US13473323

申请日：2012-05-16

Applicant: Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Xiaolin Lu

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Xiaolin Lu

IPC: H04J3/16

CPC classification number: H02J13/0006 ,  H04L43/0811 ,  H04L43/10 ,  H04L47/28 ,  H04L67/12 ,  H04L69/28 ,  H04W84/18 ,  Y04S40/168

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130215885A1

公开(公告)日：2013-08-22

申请号：US13415597

申请日：2012-03-08

Applicant: Kumaran Vijayasankar ,  Ramanuja Vedantham

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham

IPC: H04B3/54 ,  H04L12/413

CPC classification number: H04L12/413 ,  H04B3/542 ,  H04B3/544 ,  H04B2203/5408 ,  H04B2203/5454 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/0067 ,  H04L1/08 ,  H04L1/1671 ,  H04L1/18 ,  H04L5/0044 ,  H04L5/0094 ,  H04L27/2601 ,  H04L27/2646

Abstract: Segmented frames of data may be transmitted from a transmitting device using conflict free slots (CFS) within a carrier sense multiple access with collision avoidance (CSMA/CA) protocol on a noisy media. At a receiver, a segmented frame of data is received. The data is represented by a plurality of tones. If requested by the transmitter, a tone map response command is prepared that specifies a set of optimized tone map parameters by analyzing the received frame of data. Any previously determined tone map response commands to the transmitting device are deleted. A sequence of frame segments may be received in conflict free slots, but only one tone map response is transmitted to the transmitting device after receiving the entire sequence of frame segments.

公开(公告)号：US20130182686A1

公开(公告)日：2013-07-18

申请号：US13552408

申请日：2012-07-18

Applicant: Ramanuja VEDANTHAM ,  Michael GLIK ,  Ariton E. XHAFA ,  Yanjun SUN

Inventor： Ramanuja VEDANTHAM ,  Michael GLIK ,  Ariton E. XHAFA ,  Yanjun SUN

IPC: H04W72/04

CPC classification number: H04W72/0486 ,  H04W28/08 ,  H04W72/1252 ,  H04W88/06 ,  H04W92/18

Abstract: An integrated circuit includes logic configured to determine a communication schedule of a device configured to perform Wi-Fi communications in a first Basic Service Set (BSS) network and in a second BSS network. The logic determines the communication schedule based at least in part on a first BSS network communication load of the device and on a second BSS network communication load of the device. The communication schedule defines the service time allocation of the device in the first BSS network and the service time allocation of the device in the second BSS network. At least one of the first and the second BSS networks is supportive of a peer-to-peer connection.

Abstract translation: 集成电路包括被配置为确定被配置为在第一基本服务集（BSS）网络和第二BSS网络中执行Wi-Fi通信的设备的通信调度的逻辑。 该逻辑至少部分地基于设备的第一BSS网络通信负载和设备的第二BSS网络通信负载来确定通信调度。 通信调度定义第一BSS网络中设备的业务时间分配和第二BSS网络中设备的业务时间分配。 第一和第二BSS网络中的至少一个支持对等连接。

公开(公告)号：US20130070790A1

公开(公告)日：2013-03-21

申请号：US13621581

申请日：2012-09-17

Applicant: Ramanuja VEDANTHAM ,  Kumaran VIJAYASANKAR ,  Anand DABAK

Inventor： Ramanuja VEDANTHAM ,  Kumaran VIJAYASANKAR ,  Anand DABAK

IPC: H04L29/00

CPC classification number: H04B3/54 ,  H04B2203/5408 ,  H04B2203/5445

Abstract: A method for multi-tone mask communication including generating, by a power line communication router, a superframe to include a plurality of beacons corresponding to a plurality of tone masks. Each beacon also defining a plurality of tone masks, a contention access region, a contention free period, an inter router communication slot. The superframe also includes at least one of the beacons also defining an idle time during which nodes receiving the superframe are to transition to a low power mode. Transmitting the superframe to a power line communication node.

Abstract translation: 一种用于多音调掩模通信的方法，包括由电力线通信路由器生成包括与多个音调掩模相对应的多个信标的超帧。 每个信标还定义多个音调掩码，竞争接入区域，无争用时段，路由器间通信时隙。 超帧还包括至少一个信标还定义了接收超帧的节点将转换到低功率模式的空闲时间。 将超帧传输到电力线通信节点。

公开(公告)号：US20130070781A1

公开(公告)日：2013-03-21

申请号：US13609885

申请日：2012-09-11

Applicant: Ramanuja VEDANTHAM ,  Kumaran VIJAYASANKAR ,  Tarkesh PANDE ,  Anand DABAK

Inventor： Ramanuja VEDANTHAM ,  Kumaran VIJAYASANKAR ,  Tarkesh PANDE ,  Anand DABAK

IPC: H04L12/413

CPC classification number: H04L12/413

Abstract: Method and apparatus for communicating via a network. In one embodiment, a device for communicating via a network includes a medium access controller (MAC). The MAC is configured to apply a contention window for collision avoidance on the network, and to determine whether the network is free for use on expiration of a time value of the contention window. The MAC is also configured to initiate a transmission based on a determination that the network is free for use. The MAC is further configured to increase, in accordance with a predetermined probability value, the time value of the contention window based on: the transmission being successful; and the time value of the contention window being a minimum contention window time value. The probability value establishes the likelihood of the MAC increasing the time value of the contention window with respect to successful transmissions with the minimum contention window time value.

Abstract translation: 用于通过网络进行通信的方法和装置。 在一个实施例中，用于经由网络进行通信的设备包括介质访问控制器（MAC）。 MAC被配置为在网络上应用冲突避免的争用窗口，并且确定在竞争窗口的时间值到期时网络是否可用。 MAC还被配置为基于确定网络是免费的使用来发起传输。 MAC还被配置为基于：传输成功地根据预定概率值增加争用窗口的时间值; 并且争用窗口的时间值是最小竞争窗口时间值。 概率值建立MAC以相对于成功传输的最小竞争窗口时间值来增加竞争窗口的时间值的可能性。

公开(公告)号：US20130051268A1

公开(公告)日：2013-02-28

申请号：US13597010

申请日：2012-08-28

Applicant: Marcel Nassar ,  Il Han Kim ,  Tarkesh Pande ,  Anand G. Dabak ,  Ramanuja Vedantham ,  Kumaran Vijayasankar

Inventor： Marcel Nassar ,  Il Han Kim ,  Tarkesh Pande ,  Anand G. Dabak ,  Ramanuja Vedantham ,  Kumaran Vijayasankar

IPC: H04B3/46

CPC classification number: H04B3/54 ,  H04B2203/5466 ,  H04B2203/5495

Abstract: Systems and methods for Carrier Sense Multiple Access (CSMA) and collision detection using a noise model are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include receiving a signal via a communications channel in a PLC network, determining a feature of the signal, comparing the feature of the signal with a corresponding feature of a cyclostationary noise model, and taking a predetermined action based, at least in part, upon the comparison. In some implementations, taking the predetermined action may include determining whether to backoff or to transmit a packet over the communications channel. In other implementations, taking the predetermined action may include determining whether an error is due to a packet collision or due to a low quality of the communications channel.

Abstract translation: 描述了载波侦听多路访问（CSMA）的系统和方法以及使用噪声模型的碰撞检测。 在各种实现中，这些系统和方法可以适用于电力线通信（PLC）。 例如，一种方法可以包括通过PLC网络中的通信信道接收信号，确定信号的特征，将信号的特征与循环平稳噪声​​模型的对应特征进行比较，并且基于 至少部分比较。 在一些实现中，采取预定动作可以包括确定是否退避或通过通信信道发送分组。 在其他实现中，采取预定动作可以包括确定错误是由于分组冲突还是由于通信信道质量低而确定。

公开(公告)号：US20120324322A1

公开(公告)日：2012-12-20

申请号：US13528191

申请日：2012-06-20

Applicant: RAMANUJA VEDANTHAM ,  GANG XU ,  KUMARAN VIJAYASANKAR ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM ,  XIAOLIN LU

Inventor： RAMANUJA VEDANTHAM ,  GANG XU ,  KUMARAN VIJAYASANKAR ,  ANAND G. DABAK ,  TARKESH PANDE ,  IL HAN KIM ,  XIAOLIN LU

IPC: H03M13/09 ,  G06F11/10

CPC classification number: G06F11/1004 ,  H03M13/09

Abstract: 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.

Abstract translation: 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。