公开(公告)号：US20140044038A1

公开(公告)日：2014-02-13

申请号：US13572912

申请日：2012-08-13

申请人： Jiansong Zhang ,  Kun Tan ,  Yongguang Zhang ,  Ranveer Chandra

发明人： Jiansong Zhang ,  Kun Tan ,  Yongguang Zhang ,  Ranveer Chandra

IPC分类号： H04W4/00

CPC分类号： H04L1/1854 ,  H04L1/1887 ,  H04L1/1893

摘要： Implementations for retransmitting erroneous portions within a transmission frame are described. A sender transmits a transmission frame and the receiver performs error detection on portions of the transmission frame in order to determine if any are received in error. The receiver sets up a feedback channel and transmits acknowledgements to the receiver to indicate that one or more portions have been received and to identify any portions that are received with errors. At least some of the acknowledgements are transmitted prior to receipt of the entire transmission frame. The sender retransmits any portions that are identified as being erroneous within the transmission frame.

摘要翻译： 描述用于在传输帧内重传错误部分的实现。 发送方发送传输帧，并且接收机对传输帧的部分执行错误检测，以便确定是否有错误。 接收机建立反馈信道并且向接收机发送确认以指示已经接收到一个或多个部分并且识别任何被错误接收的部分。 在接收到整个传输帧之前至少发送一些确认。 发送方重传发送帧内被识别为错误的任何部分。

公开(公告)号：US20130121257A1

公开(公告)日：2013-05-16

申请号：US13294039

申请日：2011-11-10

申请人： Yong He ,  Kun Tan ,  Haichen Shen ,  Jiansong Zhang ,  Yongguang Zhang

发明人： Yong He ,  Kun Tan ,  Haichen Shen ,  Jiansong Zhang ,  Yongguang Zhang

IPC分类号： H04W72/04

CPC分类号： H04L5/0041 ,  H04L5/0044 ,  H04L27/0006 ,  H04L27/2636

摘要： Embodiments include processes, systems, and devices for reshaping virtual baseband signals for transmission on non-contiguous and variable portions of a physical baseband, such as a white space frequency band. In the transmission path, a spectrum virtualization layer maps a plurality of frequency components derived from a transmission symbol produced by a physical layer protocol to sub-carriers of the allocated physical frequency band. The spectrum virtualization layer then outputs a time-domain signal derived from the mapped frequency components. In the receive path, a time-domain signal received on the physical baseband is reshaped by the virtual spectrum layer in order to recompose a time-domain symbol in the virtual baseband.

摘要翻译： 实施例包括用于重构虚拟基带信号以用于在诸如空白频带的物理基带的非连续和可变部分上传输的过程，系统和设备。 在传输路径中，频谱虚拟化层将从由物理层协议产生的传输符号导出的多个频率分量映射到所分配的物理频带的子载波。 然后，频谱虚拟化层输出从映射的频率分量导出的时域信号。 在接收路径中，在物理基带上接收​​的时域信号由虚拟频谱层重新形成，以便重构虚拟基带中的时域符号。

公开(公告)号：US20110035522A1

公开(公告)日：2011-02-10

申请号：US12535415

申请日：2009-08-04

申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang

发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang

IPC分类号： G06F13/00 ,  H04L27/00 ,  G06F12/00

CPC分类号： G06F13/28

摘要： A radio control board passes a plurality of digital samples between a memory of a computing device and a radio frequency (RF) transceiver coupled to a system bus of the computing device. Processing of the digital samples is carried out one or more cores of a multi-core processor to implement a software-defined radio.

摘要翻译： 无线电控制板在计算设备的存储器与耦合到计算设备的系统总线的射频（RF）收发器之间传递多个数字样本。 数字样本的处理由多核处理器的一个或多个核进行，以实现软件定义的无线电。

公开(公告)号：US20100153523A1

公开(公告)日：2010-06-17

申请号：US12336228

申请日：2008-12-16

申请人： Dan Li ,  Chuanxiong Guo ,  Kun Tan ,  Haitao Wu ,  Yongguang Zhang

发明人： Dan Li ,  Chuanxiong Guo ,  Kun Tan ,  Haitao Wu ,  Yongguang Zhang

IPC分类号： G06F15/173 ,  G06F15/16

CPC分类号： H04L45/00 ,  H04L45/26 ,  H04L67/1097

摘要： Large numbers of commodity servers in a data center may be inexpensively interconnected using low-cost commodity network switches, a first network port on each commodity server, a second network port on each commodity server, and a traffic-aware routing module executed on each commodity server. Connecting two or more commodity servers via the first network ports on each server to a commodity network switch forms a unit. Connecting two commodity servers in different units forms a group. Each unit has a direct connection via a second network port on a commodity server in the unit to another unit. Each group may have a direct connection via a second network port on a commodity server in the group to another group. Traffic-aware routing modules executed on each commodity server determine routing of data between servers and balance traffic across the first and second ports.

摘要翻译： 数据中心中的大量商品服务器可以使用低成本商品网络交换机，每个商品服务器上的第一网络端口，每个商品服务器上的第二网络端口以及在每个商品上执行的流量感知路由模块来廉价互连 服务器。 通过每个服务器上的第一个网络端口将两个或多个商品服务器连接到商品网络交换机，形成一个单元。 连接不同单位的两个商品服务器组成一个组。 每个单元通过单元中商品服务器上的第二个网络端口直接连接到另一个单元。 每个组可以通过组中的商品服务器上的第二网络端口直接连接到另一组。 在每个商品服务器上执行的流量感知路由模块确定服务器之间的数据路由，并平衡第一和第二端口的流量。

公开(公告)号：US20090274043A1

公开(公告)日：2009-11-05

申请号：US12113120

申请日：2008-04-30

申请人： Chuanxiong Guo ,  Songwu Lu ,  Shi Lei ,  Kun Tan ,  Haitao Wu ,  Yongguang Zhang

发明人： Chuanxiong Guo ,  Songwu Lu ,  Shi Lei ,  Kun Tan ,  Haitao Wu ,  Yongguang Zhang

IPC分类号： G06F11/00 ,  H04L12/56

CPC分类号： H04L45/00 ,  H04L45/04 ,  H04L45/46

摘要： A method and system for providing a multi-level interconnection network is provided. A multi-level interconnection network comprises basic cells that are aggregated into higher level cells at each level of the network. At the first level, the basic cells are aggregated into first level cells. Each first level cell is an aggregation of a number of basic cells that is one more than the number of devices in a basic cell. The basic cells of a first level cell are fully connected; that is, each basic cell has a first level link or connection to each other basic cell. In a first level cell, each device of a basic cell has a first level link to each other basic cell. The multi-level interconnection network has higher level cells that are aggregations of lower level cells in a similar manner.

公开(公告)号：US20080186917A1

公开(公告)日：2008-08-07

申请号：US11701897

申请日：2007-02-02

申请人： Haitao Wu ,  Kun Tan ,  Yongguang Zhang

发明人： Haitao Wu ,  Kun Tan ,  Yongguang Zhang

IPC分类号： H04Q7/00

CPC分类号： H04W36/10 ,  H04W48/16

摘要： Methods and systems for handing off a wireless client between access points wherein the scanning for access points in decoupled from the handing off, thus reducing the delay in the handing off.

摘要翻译： 在接入点之间切换无线客户端的方法和系统，其中接入点的扫描与越区切换脱钩，从而减少切换的延迟。

公开(公告)号：US09286116B2

公开(公告)日：2016-03-15

申请号：US13543231

申请日：2012-07-06

申请人： Chih-Yung Wang ,  Kun Tan ,  Yongguang Zhang ,  Qiufeng Yin

发明人： Chih-Yung Wang ,  Kun Tan ,  Yongguang Zhang ,  Qiufeng Yin

IPC分类号： G06F9/46 ,  G06F7/38 ,  G06F9/48 ,  G06F9/52

CPC分类号： G06F9/5033 ,  G06F9/4856 ,  G06F9/524

摘要： A real-time task may initially be performed by a first thread that is executing on a first core of a multi-core processor. A second thread may be initiated to take over the performance of the real-time task on a second core of the multi-core processor while the first thread is performing the real-time task. The performance of the real-time tasks is then transferred from the first thread to the second thread with the execution of the second thread on the second core to perform the real-time task.

摘要翻译： 最初可以由在多核处理器的第一核上执行的第一线程执行实时任务。 可以启动第二线程以在第一线程执行实时任务时在多核处理器的第二核心上接管实时任务的性能。 然后，通过执行第二个核心上的第二个线程，实时任务的执行从第一个线程传输到第二个线程，以执行实时任务。

公开(公告)号：US20100214945A1

公开(公告)日：2010-08-26

申请号：US12775416

申请日：2010-05-06

申请人： Haitao Wu ,  Kun Tan ,  Jun Zhao ,  Yongguang Zhang

发明人： Haitao Wu ,  Kun Tan ,  Jun Zhao ,  Yongguang Zhang

IPC分类号： H04W80/00 ,  H04W72/04

CPC分类号： H04W72/02 ,  H04W72/085 ,  H04W84/18

摘要： Systems and methods for distributed overlay multi-channel MAC for wireless ad hoc networks are described. In one aspect, the systems and methods divide channel frequencies defined by a wireless network protocol into a single home channel and multiple guest channels that are orthogonal to the home channel. Each of the network nodes in the ad hoc network operates on the home channel for respective variable and overlapping amounts of time to maintain network connectivity with other respective network nodes. Additionally, each of the network nodes determines whether and when to switch from the home channel to a particular guest channel of the guest channels for a variable amount of time to increase data throughput over one or more corresponding communication links in the ad hoc network with other network node(s).

摘要翻译： 描述了用于无线自组织网络的分布式覆盖多信道MAC的系统和方法。 在一个方面，系统和方法将由无线网络协议定义的信道频率划分为单个归属信道和与归属信道正交的多个客户信道。 ad hoc网络中的每个网络节点在归属信道上操作相应的可变和重叠的时间量，以维持与其他各个网络节点的网络连接。 另外，每个网络节点确定是否以及何时何时从客户信道切换到客户信道的特定客体信道一段可变的时间量，以增加具有其他的自组织网络中的一个或多个对应的通信链路上的数据吞吐量 网络节点。

公开(公告)号：US20100172275A1

公开(公告)日：2010-07-08

申请号：US12349528

申请日：2009-01-07

申请人： Haitao Wu ,  Kun Tan ,  Yongguang Zhang

发明人： Haitao Wu ,  Kun Tan ,  Yongguang Zhang

IPC分类号： G08C17/00

CPC分类号： H04W52/0216 ,  H04W8/005 ,  H04W56/0015 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22

摘要： Described is a technology in which a Wi-Fi enabled mobile computing device conserves power by only attempting peer discovery at certain times, according to a wakeup pattern. A device time clock is synchronized, such as via a cellular service, a GPS system, or a network to establish the time to awaken. Imprecise synchronization between the devices within a maximum difference is acceptable because the pattern ensures that any two devices are concurrently awake for at least a sufficient time to perform discovery. The awake time may be divided into active and inactive slots, arranged such that an active slot of each device will overlap regardless of when the awake time begins on each device. Also described is using a previously agreed-upon communications channel for subsequent discovery, which may be based upon pseudo-random number generation.

摘要翻译： 描述了一种技术，其中Wi-Fi功能的移动计算设备通过仅在特定时间尝试对等体发现来节省功率，根据唤醒模式。 设备时钟被同步，例如通过蜂窝服务，GPS系统或网络来建立唤醒时间。 最大差异之间的设备之间的精确同步是可以接受的，因为该模式确保任何两个设备同时唤醒至少足够的时间来执行发现。 唤醒时间可以被划分为主动和非活动时隙，被布置为使得每个设备的活动时隙将重叠，而不管何时在每个设备上开始唤醒时间。 还描述了使用先前商定的用于后续发现的通信信道，其可以基于伪随机数生成。

公开(公告)号：US20090274063A1

公开(公告)日：2009-11-05

申请号：US12113114

申请日：2008-04-30

申请人： Chuanxiong Guo ,  Songwu Lu ,  Lei Shi ,  Kun Tan ,  Haitao Wu ,  Yongguang Zhang

发明人： Chuanxiong Guo ,  Songwu Lu ,  Lei Shi ,  Kun Tan ,  Haitao Wu ,  Yongguang Zhang

IPC分类号： H04L12/28

CPC分类号： H04L45/24 ,  H04L45/00 ,  H04L45/04 ,  H04L45/28

摘要： A method and system for providing a multi-level interconnection network is provided. A multi-level interconnection network comprises basic cells that are aggregated into higher level cells at each level of the network. At the first level, the basic cells are aggregated into first level cells. Each first level cell is an aggregation of a number of basic cells that is one more than the number of devices in a basic cell. The basic cells of a first level cell are fully connected; that is, each basic cell has a first level link or connection to each other basic cell. In a first level cell, each device of a basic cell has a first level link to each other basic cell. The multi-level interconnection network has higher level cells that are aggregations of lower level cells in a similar manner.

摘要翻译： 提供了一种用于提供多级互连网络的方法和系统。 多级互连网络包括在网络的每个级别聚合成更高级别的单元的基本单元。 在第一级，基本单元被聚合成第一级单元。 每个第一级单元是多个基本单元的聚合，其比基本单元中的设备数量多一个。 第一级单元的基本单元完全连接; 也就是说，每个基本单元具有与每个其他基本单元的第一级链接或连接。 在第一级小区中，基本小区的每个设备具有到彼此的基本小区的第一级链路。 多级互连网络具有较高级别的单元，其是类似方式的低级单元的聚合。