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31. 发明授权

US09906333B2 In-frame acknowledgments and retransmissions 有权
公开(公告)号：US09906333B2
公开(公告)日：2018-02-27
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： H04L1/18
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.

32. 发明授权

US09445432B2 Fine-grained channel access in wireless networks 有权
标题翻译：无线网络中的细粒度通道接入
公开(公告)号：US09445432B2
公开(公告)日：2016-09-13
申请号：US12824104
申请日：2010-06-25
申请人： Kun Tan , Jiansong Zhang , Yongguang Zhang , Ji Fang
发明人： Kun Tan , Jiansong Zhang , Yongguang Zhang , Ji Fang
IPC分类号： H04W74/08 , H04L27/26 , H04W72/00 , H04W72/04 , H04W84/12
CPC分类号： H04W74/08 , H04L27/2607 , H04W72/00 , H04W72/044 , H04W84/12
摘要： A fine-grained channel access system and method to facilitate fine-grained channel access in a high-data rate wide-band wireless local-area network (WLAN). Embodiments of the system and method divide an entire wireless channel into proper size subchannels commensurate with the physical layer data rate and typical frame size. Once the subchannels are defined, each node on the WLAN contends independently for each of the fine-grained subchannels. A first orthogonal frequency-division multiplexing (OFDM) technique is used to signal an access point on the WLAN that the node desires one or more of the subchannels. A second OFDM technique (which is different from the first OFDM technique) is used for data transmission. Sometimes there is contention between nodes that want the same subchannel. The access point resolves any contention between the nodes using a frequency domain contention technique that includes a frequency domain backoff technique.
摘要翻译：一种细粒度的信道接入系统和方法，用于在高数据速率宽带无线局域网（WLAN）中促进细粒度信道接入。系统和方法的实施例将整个无线信道划分成与物理层数据速率和典型帧大小相称的适当尺寸的子信道。一旦定义了子信道，WLAN上的每个节点独立地针对每个细粒度子信道进行竞争。第一正交频分复用（OFDM）技术用于向WLAN上的接入点发信号通知节点希望一个或多个子信道。第二OFDM技术（其与第一OFDM技术不同）用于数据传输。有时在需要相同子通道的节点之间存在竞争。接入点使用包括频域退避技术的频域争用技术来解决节点之间的任何争用。

33. 发明授权

US09286116B2 Multiple core real-time task execution 有权
标题翻译：多核实时任务执行
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。

34. 发明申请

US20140051467A1 Spectrum Allocation for Base Station 有权
标题翻译：基站频谱分配
公开(公告)号：US20140051467A1
公开(公告)日：2014-02-20
申请号：US13202297
申请日：2011-05-04
申请人： Kun Tan , Jiansong Zhang , Yongguang Zhang , Ranveer Chandra , Yong He , Thomas Moscibroda , Paramvir Bahl , Haichen Shen
发明人： Kun Tan , Jiansong Zhang , Yongguang Zhang , Ranveer Chandra , Yong He , Thomas Moscibroda , Paramvir Bahl , Haichen Shen
IPC分类号： H04W72/08 , H04W72/04 , H04W88/08
CPC分类号： H04W72/0453 , H04L5/0005 , H04L5/0023 , H04L5/0064 , H04L5/0066 , H04L5/0092 , H04L5/14 , H04L27/0006 , H04W16/14 , H04W72/0446 , H04W72/082 , H04W88/08
摘要： Embodiments include processes, systems, and devices that allow a white space base station to request available frequency ranges for white space transmission in a local area. A white space finder service models a primary user device's transmission signal propagation area using terrain data associated with the local area of the primary user device. The white space finder service also determines, based on the location of the white space base station and the modeled propagation area, one or more locally available, non-interfering frequency ranges and provides them to the white space base station. The white space base station compares the provided frequency ranges to policies and selects one or more of the available frequencies that accommodate the policies. The white space base station also maps the transmission frequency ranges to virtual frequency ranges for transmission by a software-defined radio employing spectrum virtualization.
摘要翻译：实施例包括允许空白基站在局部区域中为空白传输请求可用频率范围的过程，系统和设备。白色空间查找器服务使用与主用户设备的本地区域相关联的地形数据来建模主用户设备的传输信号传播区域。白色空间查找器服务还基于白色空间基站的位置和建模的传播区域确定一个或多个本地可用的非干扰频率范围并将其提供给空白基站。空白基站将提供的频率范围与策略进行比较，并选择适应策略的一个或多个可用频率。白空间基站还将传输频率范围映射到虚拟频率范围，以便通过使用频谱虚拟化的软件定义无线电进行传输。

35. 发明申请

US20120287782A1 PROGRAMMABLE AND HIGH PERFORMANCE SWITCH FOR DATA CENTER NETWORKS 有权
标题翻译：数据中心网络的可编程和高性能开关
公开(公告)号：US20120287782A1
公开(公告)日：2012-11-15
申请号：US13106226
申请日：2011-05-12
申请人： Guohan Lv , Chuanxiong Guo , Yongqiang Xiong , Haitao Wu , Yongguang Zhang
发明人： Guohan Lv , Chuanxiong Guo , Yongqiang Xiong , Haitao Wu , Yongguang Zhang
IPC分类号： H04L12/24
CPC分类号： H04L49/356 , H04L45/7457 , H04L49/506
摘要： This application describes routing packets from a source server to a plurality of ports of a switch. The switch is programmed by the control server and is used to direct incoming data packets to one or more ports of the switch in a manner that reduces congestion of incoming data packets to a destination server. Further, the control server queries congestion information from the switch, and then sends congestion notification back to the source server to either increase or decrease the amount of data being sent to the destination server.
摘要翻译：该应用程序描述了将数据包从源服务器路由到交换机的多个端口。交换机由控制服务器编程，用于将输入数据包引导到交换机的一个或多个端口，以减少输入数据包到目的地服务器的拥塞。此外，控制服务器从交换机查询拥塞信息，然后将拥塞通知发送回源服务器，以增加或减少发送到目的服务器的数据量。

36. 发明申请

US20120140621A1 Incast Congestion Control in a Network 有权
标题翻译：网络中的拥塞拥塞控制
公开(公告)号：US20120140621A1
公开(公告)日：2012-06-07
申请号：US12961856
申请日：2010-12-07
申请人： Haitao Wu , Chuanxiong Guo , Yongguang Zhang
发明人： Haitao Wu , Chuanxiong Guo , Yongguang Zhang
IPC分类号： H04L12/26
CPC分类号： H04L69/163
摘要： Implementations are described for controlling, avoiding, and/or minimizing incast congestion in a network. In various embodiments, the network may be a data center network, which may include one or more senders and a receiver that transmit data across the network using Transmission Control Protocol. The receiver may be associated with a receive window that may determine amount of data that may be received by the receiver at a single time. Moreover, a size of the receive window may be adjusted based at least in part on an available bandwidth of the receiver. As a result of an increase or decrease in the receive window, the one or more senders may not be constrained in transmitting data to the receiver and incast congestion at the receiver may be reduced and/or avoided.
摘要翻译：描述了用于控制，避免和/或最小化网络中的不必要拥塞的实现。在各种实施例中，网络可以是数据中心网络，其可以包括一个或多个发送者和使用传输控制协议通过网络传输数据的接收机。接收机可以与接收窗口相关联，接收窗口可以确定接收机在单个时间可以接收的数据量。此外，可以至少部分地基于接收机的可用带宽来调整接收窗口的大小。作为接收窗口的增加或减少的结果，一个或多个发送者可以不受约束以将数据发送到接收机，并且可能减少和/或避免接收机的恶化。

37. 发明申请

US20110078355A1 Radio-Control Board For Software-Defined Radio Platform 有权
标题翻译：软件定义无线电台无线电台
公开(公告)号：US20110078355A1
公开(公告)日：2011-03-31
申请号：US12571188
申请日：2009-09-30
申请人： Kun Tan , Jiansong Zhang , Yongguang Zhang
发明人： Kun Tan , Jiansong Zhang , Yongguang Zhang
IPC分类号： G06F13/14
CPC分类号： G06F13/4273 , G06F13/38 , G06F13/40 , H04B1/0007
摘要： A radio control board exchanges data with a radio frequency (RF) front end using a messaging protocol over an interface that includes separate data and control channels. Training data can also be passed over the interface for tuning the clock phase.
摘要翻译：无线电控制板通过包括单独的数据和控制信道的接口使用消息传递协议与射频（RF）前端交换数据。培训数据也可以通过接口传递，以调整时钟相位。

38. 发明申请

US20100235881A1 Enabling Sharing of Mobile Communication Device 有权
标题翻译：启用移动通信设备共享
公开(公告)号：US20100235881A1
公开(公告)日：2010-09-16
申请号：US12402390
申请日：2009-03-11
申请人： Yunxin Liu , Yongguang Zhang , Lin Zhong
发明人： Yunxin Liu , Yongguang Zhang , Lin Zhong
IPC分类号： H04L9/32 , G06F15/16 , G06F21/00 , G06F9/46 , G06F17/30
CPC分类号： G06F17/30141 , G06F9/545 , G06F17/30165 , G06F21/6218 , G06F2209/542 , G06F2221/2105 , H04L63/102
摘要： Various exemplary user interfaces, methods and computer program products describe enabling sharing of mobile communication devices. This process utilizes a shared mode for an owner of the mobile communication device to create a virtual environment for a borrower of the mobile communication device, which allows content information (e.g., certain applications and files) to be accessible and visual to the borrower. The process allows an owner of the mobile communication device to track and to manage data created or changed by the borrower. The owner may accept or reject the changes made in the content information. Furthermore, the process conceals non-shared resources to the borrower.
摘要翻译：各种示例性用户界面，方法和计算机程序产品描述了能够共享移动通信设备。该过程利用用于移动通信设备的所有者的共享模式来为移动通信设备的借用者创建虚拟环境，其允许内容信息（例如，某些应用和文件）对于借款者是可访问的和可视的。该过程允许移动通信设备的所有者跟踪并管理借款人创建或更改的数据。所有者可以接受或拒绝对内容信息所做的更改。此外，这一过程将非共享资源隐藏给借款人。

39. 发明申请

US20100214945A1 Distributed Overlay Multi-Channel Media Access Control (MAC) for Wireless Ad Hoc Networks 审中-公开
标题翻译：用于无线Ad Hoc网络的分布式覆盖多通道媒体访问控制（MAC）
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。

40. 发明申请

US20100172275A1 Energy Efficient Device Discovery with Short-Range Radios 审中-公开
标题翻译：使用短距离无线电的高效设备发现
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。

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