公开(公告)号：US08478932B2

公开(公告)日：2013-07-02

申请号：US12559504

申请日：2009-09-15

Applicant: Seung Jun Baek ,  Ramanuja Vedantham ,  Se-Joong Lee

Inventor： Seung Jun Baek ,  Ramanuja Vedantham ,  Se-Joong Lee

IPC: G06F12/00

CPC classification number: G06F12/023 ,  G06F12/06 ,  G06F2212/1028 ,  Y02D10/13

Abstract: Embodiments of the invention provide a memory allocation module that adopts memory-pool based allocation and is aware of the physical configuration of the memory blocks in order to manage the memory allocation intelligently while exploiting statistical characters of packet traffic. The memory-pool based allocation makes it easy to find empty memory blocks. Packet traffic characteristics are used to maximize the number of empty memory blocks.

Abstract translation: 本发明的实施例提供了一种采用基于存储器池的分配并且知道存储器块的物理配置的存储器分配模块，以便在利用分组业务的统计字符的同时智能地管理存储器分配。 基于内存池的分配可以轻松找到空的内存块。 使用分组流量特性来最大化空的存储器块的数量。

公开(公告)号：US20120327770A1

公开(公告)日：2012-12-27

申请号：US13529146

申请日：2012-06-21

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

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

IPC: H04L12/24 ,  H04L12/26 ,  H04B3/54

CPC classification number: H04L47/266 ,  H04B3/542 ,  H04B2203/5408 ,  H04L47/12 ,  H04L47/127 ,  H04L47/30 ,  H04L47/32 ,  Y02D50/10

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120314744A1

公开(公告)日：2012-12-13

申请号：US13493268

申请日：2012-06-11

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

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

IPC: H04B3/54 ,  H04B1/38

CPC classification number: H04B3/542 ,  H04B2203/5408 ,  H04B2203/5445 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666 ,  H04L69/22

Abstract: 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.

Abstract translation: 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：US20120281716A1

公开(公告)日：2012-11-08

申请号：US13457612

申请日：2012-04-27

Applicant: Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak ,  Badri N. Varadarajan ,  Il Han Kim ,  Xiaolin Lu

Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak ,  Badri N. Varadarajan ,  Il Han Kim ,  Xiaolin Lu

IPC: H04J4/00 ,  H04B3/54 ,  H04J1/00

CPC classification number: H04L5/0048 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5466 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0078 ,  H04L5/0094 ,  H04L25/0272

Abstract: Systems and methods for designing, using, and/or implementing hybrid communication networks are described. In various embodiments, these systems and methods may be applicable to power line communications (PLC). For example, one or more of the techniques disclosed herein may include methods to coordinate medium-to-low voltage (MV-LV) and low-to-low voltage (LV-LV) PLC networks when the MV-LV network operates in a frequency subband mode and the LV-LV network operates in wideband mode (i.e., hybrid communications). In some cases, MV routers and LV routers may have different profiles. For instance, MV-LV communications may be performed using MAC superframe structures, and first-level LV to lower-level LV communications may take place using a beacon mode. Lower layer LV nodes may communicate using non-beacon modes. Also, initial scanning procedures may encourage first-to-second -level LV device communications rather than MV-to-first-level LV connections.

Abstract translation: 描述了用于设计，使用和/或实现混合通信网络的系统和方法。 在各种实施例中，这些系统和方法可以适用于电力线通信（PLC）。 例如，本文公开的技术中的一个或多个技术可以包括当MV-LV网络以一个或多个的方式工作时协调中低电压（MV-LV）和低到低电压（LV-LV）PLC网络的方法 频率子带模式和LV-LV网络在宽带模式（即，混合通信）中工作。 在某些情况下，MV路由器和LV路由器可能具有不同的配置文件。 例如，可以使用MAC超帧结构来执行MV-LV通信，并且可以使用信标模式进行第一级LV到低级LV通信。 下层LV节点可以使用非信标模式进行通信。 此外，初始扫描程序可以鼓励第一到第二级LV设备通信，而不是MV到第一级LV连接。

公开(公告)号：US20120281533A1

公开(公告)日：2012-11-08

申请号：US13463263

申请日：2012-05-03

Applicant: Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham ,  Assaf Sella ,  Josef Peery ,  Xiaolin Lu

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham ,  Assaf Sella ,  Josef Peery ,  Xiaolin Lu

IPC: H04W24/00 ,  H04W28/10

CPC classification number: H04W24/08 ,  H04L47/25 ,  H04W28/0205 ,  H04W88/06

Abstract: In at least some embodiments, a communication device includes a transceiver with at least two dissimilar wireless network technology subsystems. The communication device also includes a silencing frame controller to monitor access point rate drop behavior and to adjust a level of silencing frame operations for the communication device based on the monitored access point drop behavior.

Abstract translation: 在至少一些实施例中，通信设备包括具有至少两个不同的无线网络技术子系统的收发器。 通信设备还包括一个消音帧控制器，用于监视接入点速率丢弃行为，并根据被监视的接入点丢弃行为调整通信设备的消音帧操作的级别。

公开(公告)号：US08306031B2

公开(公告)日：2012-11-06

申请号：US12201644

申请日：2008-08-29

Applicant: Harshal S. Chhaya ,  Ramanuja Vedantham

Inventor： Harshal S. Chhaya ,  Ramanuja Vedantham

IPC: H04L12/56

CPC classification number: H04L1/1635 ,  H04L1/1614 ,  H04L1/1809

Abstract: A method of performing wireless communications. The method receives at a receiving unit a sequence of data blocks from a transmitting unit. The method also identifies at the receiving unit a first number of invalid sequential data blocks in the sequence and a second number of valid sequential data blocks in the sequence. The method also communicates from the receiving unit a wireless message to the transmitting unit. The wireless message comprises a first field that specifies the first number and a second field that specifies the second number—the encoding of the first field is operable to specify a different maximum than an encoding of the second field.

Abstract translation: 一种执行无线通信的方法。 该方法在接收单元处接收来自发送单元的一系列数据块。 该方法还在接收单元处识别序列中的第一数量的无效顺序数据块和序列中的第二数目的有效顺序数据块。 该方法还从接收单元将无线消息传送到发送单元。 无线消息包括指定第一号码的第一字段和指定第二号码的第二字段 - 第一字段的编码可操作以指定与第二字段的编码不同的最大值。

公开(公告)号：US08280375B2

公开(公告)日：2012-10-02

申请号：US12190437

申请日：2008-08-12

Applicant: Shu Du ,  Sandeep Bhadra ,  Shantanu Kangude ,  Ramanuja Vedantham

Inventor： Shu Du ,  Sandeep Bhadra ,  Shantanu Kangude ,  Ramanuja Vedantham

IPC: H04J3/08

CPC classification number: H04W36/18 ,  H04W36/08

Abstract: A wireless transmit/receive unit (WTRU) (152) in a wireless communications system includes a transceiver (153) for transmitting and receiving data from a plurality of base stations (154, 156, 357) and a controller (151) communicatively coupled to the transceiver (153) and configured to adjust an operation mode of the transceiver (153). In the WTRU (152), adjusting comprises configuring the transceiver (153) to begin a radio link handover procedure responsive to receiving a handover (HO) command from a first of the plurality of base stations (154, 156, 357) over a first communications link, specifying a first time, and reconfiguring the transceiver (153) to begin a radio link interruption procedure responsive to an expiry of the first time prior to completion of the radio link handover procedure. In the WTRU (152), the radio link interruption procedure first attempts to re-establish the first communications link.

Abstract translation: 无线通信系统中的无线发射/接收单元（WTRU）（152）包括用于从多个基站（154,156,357）发送和接收数据的收发器（153）和通信地耦合到 所述收发器（153）并且被配置为调整所述收发器（153）的操作模式。 在WTRU（152）中，调整包括配置收发器（153）以响应于从多个基站（154,156,357）中的第一个基站接收到来自多个基站（154,156,357）中的第一个的切换（HO）命令，开始无线电链路切换过程 通信链路，首先指定，以及重新配置收发器（153），以响应于完成无线电链路切换过程之前的第一次的到期而开始无线电链路中断过程。 在WTRU（152）中，无线电链路中断过程首先尝试重新建立第一通信链路。

公开(公告)号：US20120229334A1

公开(公告)日：2012-09-13

申请号：US13415609

申请日：2012-03-08

Applicant: Deric Wayne WATERS ,  Ariton E. XHAFA ,  Ramanuja VEDANTHAM

Inventor： Deric Wayne WATERS ,  Ariton E. XHAFA ,  Ramanuja VEDANTHAM

IPC: G01S19/05

CPC classification number: G01S19/05 ,  G01S19/256 ,  H04W56/0045

Abstract: Apparatus and method for providing fine timing assistance to global navigation satellite systems (GNSS) via wireless local area network (WLAN). In one embodiment, a method for synchronizing a global navigation satellite system (GNSS) receiver includes receiving, by a wireless device, via a wireless local area network (WLAN), fine time assistance information transmitted by an assisting device connected to the WLAN. A time value of a GNSS clock of the wireless device is adjusted based on the fine time assistance information. Based on the adjusted time value, GNSS codes of a GNSS positioning signal are acquired by the wireless device.

Abstract translation: 通过无线局域网（WLAN）向全球导航卫星系统（GNSS）提供精确时序辅助的装置和方法。 在一个实施例中，用于同步全球导航卫星系统（GNSS）接收机的方法包括经由无线局域网（WLAN）由无线设备接收由连接到WLAN的辅助设备发送的精细时间辅助信息。 基于精细时间辅助信息来调整无线装置的GNSS时钟的时间值。 基于调整后的时间值，通过无线装置获取GNSS定位信号的GNSS码。

公开(公告)号：US20120195227A1

公开(公告)日：2012-08-02

申请号：US13362491

申请日：2012-01-31

Applicant: Ramanuja VEDANTHAM ,  Xiaolin LU ,  Assaf SELLA

Inventor： Ramanuja VEDANTHAM ,  Xiaolin LU ,  Assaf SELLA

IPC: H04W52/02 ,  H04W24/00 ,  H04L12/26

CPC classification number: H04W52/0232 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: In at least some embodiments, a wireless communication device includes a transceiver having control logic to detect traffic conditions for a communication group and to enter different power-save modes for different traffic conditions. The control logic is configured to advertize a first power-save mode to the communication group in response to a first detected traffic condition, to advertize a second power-save mode to the communication group in response to a second detected traffic condition, and to advertize a third power-save mode to the communication group in response to a third detected traffic condition.

Abstract translation: 在至少一些实施例中，无线通信设备包括具有控制逻辑的收发器，用于检测通信组的通信状况，并为不同的业务状况输入不同的省电模式。 控制逻辑被配置为响应于第一检测到的业务状况向通信组通告第一省电模式，以响应于第二检测到的业务状况向通信组通告第二节能模式，并且通告 响应于第三检测到的交通状况向通信组提供第三省电模式。

公开(公告)号：US20120163261A1

公开(公告)日：2012-06-28

申请号：US13334371

申请日：2011-12-22

Applicant: RAMANUJA VEDANTHAM ,  DERIC WAYNE WATERS ,  ARITON E. XHAFA

Inventor： RAMANUJA VEDANTHAM ,  DERIC WAYNE WATERS ,  ARITON E. XHAFA

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/164

Abstract: A method of obtaining timing parameters between wireless station peers using reduced power. A timing measurement protocol is executed a including a plurality of Timing Measurement Action (TMA) frames between a first wireless station (STA1) and a second STA (STA2) within a wireless network. The plurality of TMA frames span a communications interval and include timing information. A power-save protocol is employed by at least one of STA1 and STA2 during execution of the timing measurement protocol during one or more sub-intervals between the plurality of TMA frames. STA1 or STA2 computes at least one timing parameter using the timing information.

Abstract translation: 一种使用降低功率获得无线站对等体之间的定时参数的方法。 在无线网络内的第一无线站（STA1）和第二STA（STA2）之间执行包括多个定时测量动作（TMA）帧的定时测量协议。 多个TMA帧跨越通信间隔并且包括定时信息。 在多个TMA帧之间的一个或多个子间隔期间，在执行定时测量协议期间由STA1和STA2中的至少一个采用省电协议。 STA1或STA2使用定时信息计算至少一个定时参数。