公开(公告)号：US20130051446A1

公开(公告)日：2013-02-28

申请号：US13593159

申请日：2012-08-23

Applicant: Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Tarkesh Pande ,  Il Han Kim

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Tarkesh Pande ,  Il Han Kim

IPC: H04L12/26 ,  H04B3/54

CPC classification number: H04B3/54 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/542 ,  H04B2203/5466

Abstract: Phase detection between service nodes in a as “PRIME” (“PoweRline Intelligent Metering Evolution”) communications network, in which the service nodes are connected to one phase of a three-phase power distribution network. A service node joining a sub-network receives packet data units from other service nodes in the sub-network, including those that can potentially serve as a switch node to which the joining service node can register. The joining service node measures an elapsed time between a zero crossing of the AC power waveform at its phase and the start of a frame in the received packet data units. This elapsed time is compared with a similar zero crossing gap communicated by other service nodes in the packet data units, to identify the relative phases to which the two service nodes are connected.

Abstract translation: 作为PRIME（PoweRline智能计量演进）通信网络中的服务节点之间的相位检测，其中服务节点连接到三相配电网络的一相。 加入子网络的服务节点从子网络中的其他服务节点接收分组数据单元，包括可能充当加入服务节点可以注册的交换节点的那些节点。 加入服务节点测量在其相位处的AC功率波形的过零点与接收的分组数据单元中的帧的开始之间的经过时间。 将经过的时间与由分组数据单元中的其他服务节点通信的类似的零交叉间隔进行比较，以识别两个服务节点所连接的相对阶段。

公开(公告)号：US20130034110A1

公开(公告)日：2013-02-07

申请号：US13564440

申请日：2012-08-01

Applicant: Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak

IPC: H04B3/54

CPC classification number: H04B3/544 ,  H04B3/30 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04H20/42 ,  H04L5/005 ,  H04L25/024

Abstract: A method of Multi-Tone Mask (MTM) mode communications in a PLC network including a first router associated with a plurality of nodes. A super-frame spanning a time period is received within the subnetwork. The super-frame includes beacon frames in beacon slots within a beacon period, with each beacon frame in one of N TMs, a contention access period (CAP) including a plurality of CAP slots provided for each TM, and a poll-based contention-free period (CFP). The beacon frames provide time assignments within the super-frame including time assignments for the CAP slots and for the CFP, and TM assignments for the TMs in the CAP slots. One of nodes, another router in the subnetwork, or a router in another subnetwork transmits a broadcast frame on the PLC channel. The first router forwards the broadcast frame on the PLC channel in each of the N TMs within the time period.

Abstract translation: 一种在PLC网络中的多音调掩模（MTM）模式通信的方法，包括与多个节点相关联的第一路由器。 在子网内接收跨越时间段的超帧。 超帧包括在信标周期内的信标时隙中的信标帧，每个信标帧在N个TM之一中，竞争接入周期（CAP）包括为每个TM提供的多个CAP时隙，以及基于轮询的争用 - 免费期（CFP）。 信标帧提供超帧内的时间分配，包括CAP时隙的指定时间，以及CAP时隙中的CFP和TM分配。 节点之一，子网中的另一路由器或另一子网中的路由器在PLC信道上发送广播帧。 第一台路由器在该时间段内在每个N TM中的PLC信道上转发广播帧。

公开(公告)号：US20130028156A1

公开(公告)日：2013-01-31

申请号：US13191121

申请日：2011-07-26

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

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

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04M2250/06 ,  H04W52/0235 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A wireless device includes a peer-to-peer group owner processor that handles peer-to-peer transactions, a memory coupled to the peer-to-peer group owner processor, and a power state controller. The power state controller determines an access category of a communication received from a peer-to-peer client and determines a quality of service constraint for the access category. The power state controller also determines a power-save mechanism for the wireless device based on the quality of service constraint and implements the determined power-save mechanism.

Abstract translation: 无线设备包括处理对等事务的对等组所有者处理器，耦合到对等组所有者处理器的存储器和电源状态控制器。 电力状态控制器确定从对等客户端接收的通信的接入类别，并确定接入类别的服务质量约束。 功率状态控制器还基于服务质量约束确定无线设备的节电机制，并实现确定的省电机制。

公开(公告)号：US20120320996A1

公开(公告)日：2012-12-20

申请号：US13526227

申请日：2012-06-18

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

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

IPC: H04B3/00

CPC classification number: H04B3/54 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5495

Abstract: 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.

Abstract translation: 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：US20120300700A1

公开(公告)日：2012-11-29

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: H04L12/56 ,  H04W40/00

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：US20120275326A1

公开(公告)日：2012-11-01

申请号：US13457590

申请日：2012-04-27

Applicant: Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Anand G. Dabak ,  Badri N. Varadarajan

Inventor： Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Anand G. Dabak ,  Badri N. Varadarajan

IPC: H04L12/26

CPC classification number: H04W72/0453 ,  H04B3/544 ,  H04L41/0833 ,  H04W72/1231 ,  Y04S40/162

Abstract: Systems and methods for designing, using, and/or implementing non-beacon network communications using frequency subbands are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include transmitting a beacon request message over a given one of a plurality of frequency subbands, receiving a plurality of beacons in response to having transmitted the beacon request message, each of the plurality of beacons received over a respective one of the plurality of frequency subbands, and calculating a downlink quality report based, at least in part, upon the received beacons. The method may also include transmitting the downlink quality report over each of the plurality of frequency subbands and receiving a subband allocation command in response to having transmitted the downlink quality report, the subband allocation command indicating a downlink subband assignment and an uplink subband assignment.

Abstract translation: 描述了使用频率子带设计，使用和/或实现非信标网络通信的系统和方法。 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，一种方法可以包括在多个频率子带中的给定的一个频带上传送信标请求消息，响应于已经发送了信标请求消息来接收多个信标，多个信标中的每一个在 所述多个频率子带，并且至少部分地基于所接收的信标来计算下行链路质量报告。 该方法还可以包括：响应于已经发送下行链路质量报告，指示下行链路子带分配的子带分配命令和上行链路子带分配，在多个频率子带中的每一个上发送下行链路质量报告，并接收子带分配命令。

公开(公告)号：US20120129456A1

公开(公告)日：2012-05-24

申请号：US13304852

申请日：2011-11-28

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

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

IPC: H04W88/06 ,  H04B15/00

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: Embodiments provide systems and methods to optimize the time when to receive transmissions from dissimilar wireless networks, and hence, improve the overall network throughput and avoid access point transmission rate fall-back mechanism having an avalanche effect during coexistence of dissimilar wireless network technologies. A receiver comprises at least two dissimilar network technology subsystems and is able to receive transmissions from dissimilar wireless network technology subsystems during a predetermined reception window.

Abstract translation: 实施例提供了用于优化从不同的无线网络接收传输的时间的系统和方法，并且因此提高了整体网络吞吐量，并且避免了在不同的无线网络技术共存期间具有雪崩效应的接入点传输速率下降机制。 接收机包括至少两个不同的网络技术子系统，并且能够在预定的接收窗口期间从不同的无线网络技术子系统接收传输。

公开(公告)号：US08155023B2

公开(公告)日：2012-04-10

申请号：US12564040

申请日：2009-09-21

Applicant: Ramanuja Vedantham ,  Shantanu Kangude ,  Sandeep Bhadra

Inventor： Ramanuja Vedantham ,  Shantanu Kangude ,  Sandeep Bhadra

IPC: H04J3/00 ,  H04L12/26

CPC classification number: H04L5/0037 ,  H04L5/0039 ,  H04L41/5003 ,  H04W28/26 ,  H04W36/18

Abstract: Embodiments of the invention provide a method to efficiently enable Network MIMO for use in the downlink direction. An association is established between a primary NodeB in a first cell and a secondary NodeB in an adjacent second cell. A set of downlink transmission resources is reserved for use by both the primary NodeB and the secondary NodeB. A transport block is transmitted from the secondary NodeB simultaneously with the primary NodeB to a user equipment (UE) near the edge of the first cell in response to a schedule provided by the primary NodeB. A time instance of the reserved transmission resources is released by the secondary NodeB when no simultaneous transmission of a transport block is scheduled within a minimum time.

Abstract translation: 本发明的实施例提供了一种有效地使网络MIMO用于下行链路方向的方法。 在第一小区中的主节点B和相邻第二小区中的辅助节点B之间建立关联。 一组下行链路传输资源被保留供主节点B和辅助节点B两者使用。 响应于由主节点B提供的调度，传输块从主节点B与主节点B同时发送到第一小区边缘附近的用户设备（UE）。 当不在最短时间内调度传输块的同时传输时，辅助节点B释放预留传输资源的时间实例。

公开(公告)号：US08130653B2

公开(公告)日：2012-03-06

申请号：US12051348

申请日：2008-03-19

Applicant: Harshal S. Chhaya ,  Ramanuja Vedantham

Inventor： Harshal S. Chhaya ,  Ramanuja Vedantham

IPC: G01R31/08

CPC classification number: H04W76/18 ,  H04W4/00

Abstract: Network circuitry and a method of operating the same in establishing and deleting a service flow in a wireless network. A network station receives a request, from an initiating network station, to establish a service flow. The network station receiving the request issues a response to that request, following which it expects an acknowledgement from the initiator. Upon absence of such an acknowledgement, the receiving station transmits a message, to the initiator, to explicitly delete the service flow. This ensures that the initiator is not placed into an ambiguous state of transmitting payload traffic to a receiver that is ignoring or not receiving that traffic, in the case in which the initiator is also the transmitter of the payload traffic. This circuitry and method also ensures that the initiator is not in an ambiguous state, in the case in which it is the intended receiver of the payload traffic.

Abstract translation: 网络电路及其在建立和删除无线网络中的业务流的操作方法。 网络站从发起网络站接收到建立服务流的请求。 接收到请求的网络站发出对该请求的响应，随后它期望来自发起者的确认。 在没有这样的确认的情况下，接收站向发起者发送消息以显式地删除业务流。 这确保了在发起者也是有效载荷业务的发射机的情况下，启动器不被置于向接收者发送有效载荷业务的模糊状态，该接收机忽略或不接收该业务。 该电路和方法还确保在其是有效载荷业务的预期接收机的情况下，发起者不处于不明确的状态。

公开(公告)号：US20120020266A1

公开(公告)日：2012-01-26

申请号：US13190858

申请日：2011-07-26

Applicant: Yanjun SUN ,  Ariton E. XHAFA ,  Ramanuja VEDANTHAM ,  Xiaolin LU

Inventor： Yanjun SUN ,  Ariton E. XHAFA ,  Ramanuja VEDANTHAM ,  Xiaolin LU

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  Y02D70/142 ,  Y02D70/144

Abstract: Apparatus and method for improving throughput in a wireless device accessing coexisting networks. In one embodiment, a wireless device includes first and second wireless transceivers, a power state controller, and an access controller. The first wireless transceiver is configured to access a first wireless network. The second wireless transceiver is configured to access a second wireless network. The power state controller is configured to switch the first wireless transceiver between an active state and a sleep state. The power consumed by the first wireless transceiver while in the sleep state is reduced relative to the active state. The access controller is configured to alternately allocate a wireless medium to the first wireless transceiver and the second wireless transceiver. The power state controller and the medium access controller are configured to coordinate power state switching of the first wireless transceiver and wireless medium access by the second wireless transceiver.

Abstract translation: 用于提高无线设备中访问共存网络的吞吐量的装置和方法。 在一个实施例中，无线设备包括第一和第二无线收发器，电源状态控制器和访问控制器。 第一无线收发器被配置为访问第一无线网络。 第二无线收发器被配置为访问第二无线网络。 电源状态控制器被配置为在主动状态和睡眠状态之间切换第一无线收发器。 处于睡眠状态时，第一无线收发器消耗的功率相对于活动状态减小。 访问控制器被配置为交替地向第一无线收发器和第二无线收发器分配无线介质。 电源状态控制器和介质访问控制器被配置为协调第一无线收发器的功率状态切换和第二无线收发器的无线介质访问。