公开(公告)号：US08674957B2

公开(公告)日：2014-03-18

申请号：US13364568

申请日：2012-02-02

申请人： Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat ,  Xiaolong Huang

发明人： Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat ,  Xiaolong Huang

IPC分类号： G06F3/041

CPC分类号： G06F3/0481 ,  G06F3/1454 ,  G06F3/147 ,  G09G2340/0407 ,  G09G2340/0464 ,  G09G2370/16

摘要： Aspects of this disclosure relate to a method that includes, in an example, sending, by a source device, display data to a sink device for rendering on the sink device. The method also includes receiving, by the source device, an indication of user input at a first display location of a touch-sensitive screen associated with the source device, wherein the user input specifies a modification of at least a portion of the display data rendered at the sink device, wherein the portion of the display data is rendered at a second display location of the sink device. The method also includes, in response to receiving the indication, sending, by the source device, second configuration data to modify the portion of the display data rendered at the second display location based at least in part on a mapping of the first display location to the second display location.

摘要翻译： 本公开的方面涉及一种方法，其在示例中包括由源设备向宿设备发送显示数据到宿设备以在宿设备上呈现。 该方法还包括由源设备接收与源设备相关联的触敏屏幕的第一显示位置处的用户输入的指示，其中用户输入指定呈现的显示数据的至少一部分的修改 在所述宿设备处，其中所述显示数据的所述部分被呈现在所述宿设备的第二显示位置。 该方法还包括响应于接收到该指示，由源设备发送第二配置数据，以至少部分地基于第一显示位置映射到第二显示位置到第二显示位置的映射来修改在第二显示位置呈现的显示数据的部分 第二个显示位置。

公开(公告)号：US20140022970A1

公开(公告)日：2014-01-23

申请号：US13948123

申请日：2013-07-22

申请人： Chen Gong ,  Xiaodong Wang

发明人： Chen Gong ,  Xiaodong Wang

IPC分类号： H04W52/02

CPC分类号： H04W52/0203 ,  H04L67/1023 ,  H04W28/085 ,  Y02D70/00

摘要： Methods, systems, and media for partial downloading in wireless distributed networks are provided. In some embodiments, methods for selecting numbers of symbols to be transmitted on a plurality of channels are provided, the methods comprising: for each of the plurality of channels, calculating using a hardware processor an increase in power that will be used by that channel if it transmits a symbol; selecting one of the plurality of channels with the smallest increase in power using the hardware processor; and allocating the symbol to the one of the plurality of channels using the hardware processor.

摘要翻译： 提供了在无线分布式网络中部分下载的方法，系统和媒体。 在一些实施例中，提供了用于选择要在多个信道上发送的符号数目的方法，所述方法包括：对于多个信道中的每一个，使用硬件处理器计算将由该信道使用的功率增加，如果 它传输一个符号; 使用所述硬件处理器选择具有最小功率增加的所述多个信道中的一个; 以及使用所述硬件处理器将所述符号分配给所述多个信道中的一个。

公开(公告)号：US20130230116A1

公开(公告)日：2013-09-05

申请号：US13548268

申请日：2012-07-13

申请人： Mohammad Ali Khojastepour ,  Xiaodong Wang

发明人： Mohammad Ali Khojastepour ,  Xiaodong Wang

IPC分类号： H04L25/03

CPC分类号： H04B7/0456 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0647 ,  H04L5/0023 ,  H04L25/0202 ,  H04L25/03343 ,  H04L25/03936 ,  H04L27/2601 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W72/04

摘要： Systems and methods are for generating a codebook by: generating a multi-resolution codebook by selecting a common precoder index from a low resolution codebook for a group of adjacent resource blocks (RB)s and for each RB within the group, selecting a high-resolution codebook to fine-tune each RB precoder; and generating feedback for the multi-resolution codebook by quantizing channel state variations.

公开(公告)号：US20130170445A1

公开(公告)日：2013-07-04

申请号：US13617991

申请日：2012-09-14

申请人： Mohammad A. Khojastepour ,  Xiaodong Wang ,  Mohammad Madihian

发明人： Mohammad A. Khojastepour ,  Xiaodong Wang ,  Mohammad Madihian

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0626 ,  H04B7/0639 ,  H04L1/0001 ,  H04L1/06

摘要： A method implemented in a base station used for a downlink multi-user (MU) multi-input multi-output (MIMO) system is disclosed. The method includes receiving an indication of a quantized matrix from each of a plurality of scheduled user equipments, precoding data streams for the plurality of scheduled user equipments, transmitting the precoded data to the plurality of scheduled user equipments. Other methods and some apparatuses for wireless communications also are disclosed.

公开(公告)号：US20130089006A1

公开(公告)日：2013-04-11

申请号：US13420933

申请日：2012-03-15

申请人： Xiaolong Huang ,  Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat

发明人： Xiaolong Huang ,  Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat

IPC分类号： H04B7/26

CPC分类号： H04B7/26 ,  H04N21/41422 ,  H04N21/44213 ,  H04N21/6377

摘要： This disclosure relates to techniques for enabling a sink device in a Wireless Display (WD) system to control operation of the source device and media data sent from the source device. In one example, a method comprises establishing a communication session between a source device and at least one sink device capable of operating in a Minimal Cognitive (MC) mode, wherein the MC mode includes one or more levels, receiving a signal from the sink device to activate a particular level of the MC mode based on trigger information detected at the sink device, and sending media data to the sink device according to an altered operation of the source device for the particular level of the MC mode.

摘要翻译： 本公开涉及使无线显示（WD）系统中的信宿设备能够控制源设备和从源设备发送的媒体数据的操作的技术。 在一个示例中，一种方法包括在源设备和能够以最小认知（MC））模式操作的至少一个宿设备之间建立通信会话，其中MC模式包括一个或多个级别，从宿设备接收信号 基于在宿设备检测到的触发信息来激活MC模式的特定级别，以及根据针对MC模式的特定级别的源设备的改变的操作将媒体数据发送到宿设备。

公开(公告)号：US20130047189A1

公开(公告)日：2013-02-21

申请号：US13364801

申请日：2012-02-02

申请人： Vijayalakshmi R. Raveendran ,  Fawad Shaukat ,  Xiaodong Wang

发明人： Vijayalakshmi R. Raveendran ,  Fawad Shaukat ,  Xiaodong Wang

IPC分类号： H04N21/65

CPC分类号： H04N21/43637 ,  G06F3/1454 ,  G09G2340/0407 ,  G09G2350/00 ,  G09G2352/00 ,  G09G2370/04 ,  G09G2370/16 ,  H04N21/23 ,  H04N21/25825 ,  H04N21/4126 ,  H04N21/435 ,  H04N21/84 ,  H04W84/12

摘要： As part of a communication session, a wireless source device can transmit video component data and metadata to a wireless sink device. The wireless source device can intercept the video component data prior to the video component data being rendered by the wireless source device, and the wireless sink device can generate a frame of video data based on the video component data and the metadata.

摘要翻译： 作为通信会话的一部分，无线源设备可以将视频组件数据和元数据发送到无线接收设备。 无线源设备可以在由无线源设备呈现的视频分量数据之前拦截视频分量数据，并且无线宿设备可以基于视频分量数据和元数据生成视频数据帧。

公开(公告)号：US20130003621A1

公开(公告)日：2013-01-03

申请号：US13344253

申请日：2012-01-05

申请人： Xiaolong Huang ,  Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat

发明人： Xiaolong Huang ,  Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat

IPC分类号： H04L12/56 ,  H04W76/02

CPC分类号： H04L65/00 ,  H04L69/24 ,  H04W99/00

摘要： As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The user input data transmitted by the wireless sink device can be input data obtained at a third party device and forwarded to the wireless source device.

摘要翻译： 作为通信会话的一部分，无线源设备可以将音频和视频数据传输到无线宿设备，并且无线宿设备可以将在无线宿设备处接收的用户输入数据发送回无线源设备。 以这种方式，无线接收设备的用户可以控制无线源设备并且控制正在从无线源设备发送到无线接收设备的内容。 由无线接收设备发送的用户输入数据可以是在第三方设备获得的输入数据，并转发给无线源设备。

公开(公告)号：US20130002949A1

公开(公告)日：2013-01-03

申请号：US13344291

申请日：2012-01-05

申请人： Vijayalakshmi R. Raveendran ,  Xiaolong Huang ,  Xiaodong Wang ,  Fawad Shaukat

发明人： Vijayalakshmi R. Raveendran ,  Xiaolong Huang ,  Xiaodong Wang ,  Fawad Shaukat

IPC分类号： H04N7/04

CPC分类号： H04W28/18 ,  H04L65/4092

摘要： As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user inputs received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. As part of establishing the communication session, the wireless sink device and the wireless source device may perform capability negotiation.

摘要翻译： 作为通信会话的一部分，无线源设备可以将音频和视频数据发送到无线接收设备，并且无线接收设备可以将在无线接收设备处接收的用户输入发送回无线源设备。 以这种方式，无线接收设备的用户可以控制无线源设备并且控制正在从无线源设备发送到无线接收设备的内容。 作为建立通信会话的一部分，无线接收设备和无线源设备可以执行能力协商。

公开(公告)号：US08341467B2

公开(公告)日：2012-12-25

申请号：US12498042

申请日：2009-07-06

申请人： Guosen Yue ,  Xiaodong Wang

发明人： Guosen Yue ,  Xiaodong Wang

IPC分类号： G06F11/00

CPC分类号： H04L1/1825 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009

摘要： A method and system for packet transmission in a hybrid automatic repeat request (ARQ) system. A modulation and a block length for a transmission are determined based on the average mutual information per bit. The average mutual information per bit is computed based on a current channel signal-to-noise ratio and a plurality of previous transmissions, each being transmitted with a respective coded block length, modulation form, and signal-to-noise ratio. A block error rate is computed for the potential block lengths and modulations based on the average mutual information per bit, and a throughput of the current transmission is determined based on the block error rate. The modulation form and the block length of the transmission are determined based on an analysis of the throughput. If the receiver cannot decode the current transmission, the transmitter repeats the computation to determine the modulation and the block length for retransmission.

摘要翻译： 一种混合自动重传请求（ARQ）系统中分组传输的方法和系统。 基于每比特的平均互信息来确定传输的调制和块长度。 基于当前信道信噪比和多个先前传输来计算每比特的平均互信息，每个传输以相应的编码块长度，调制形式和信噪比进行传输。 基于每比特的平均互信息计算潜在块长度和调制的块错误率，并且基于块错误率来确定当前传输的吞吐量。 基于吞吐量的分析来确定传输的调制形式和块长度。 如果接收机不能解码当前的传输，则发射机重复计算以确定用于重传的调制和块长度。

公开(公告)号：US20120033756A1

公开(公告)日：2012-02-09

申请号：US13273880

申请日：2011-10-14

申请人： Mohammad A. Khojastepour ,  Xiaodong Wang ,  Mohammad Madihian

发明人： Mohammad A. Khojastepour ,  Xiaodong Wang ,  Mohammad Madihian

IPC分类号： H04L1/02

CPC分类号： H04W72/042 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0626 ,  H04B7/0639 ,  H04L1/0001 ,  H04L1/06

摘要： Multi-user (MU-) MIMO systems with quantized feedback are designed to maximize the sum-rate via scheduling and linear precoding. To maximize throughput over the network, quantized CSIT is sent through a low-rate feedback link feedback from a plurality of users back to a base station. The base station then determines a subset of the plurality of users to transmit one or more signals to based on the received feedback and determines a preceding matrix based on the received feedback from the plurality of users wherein the precoding matrix maximizes a sum-rate throughput for the subset of the plurality of users. Additionally, based on the received feedback, the base station designs a quantization codebook. This codebook may be designed off-line and/or online. The codebook and/or precoding matrix are used to transmit signals to the users.

摘要翻译： 设计了具有量化反馈的多用户（MU-）MIMO系统，以通过调度和线性预编码来最大化总和速率。 为了使网络上的吞吐量最大化，量化的CSIT通过从多个用户返回到基站的低速率反馈链路反馈发送。 基站然后基于所接收的反馈确定多个用户的子集以发送一个或多个信号，并且基于来自多个用户的接收到的反馈来确定先前的矩阵，其中预编码矩阵使和速率吞吐量最大化 多个用户的子集。 另外，基于接收到的反馈，基站设计量化码本。 该码本可以离线和/或在线设计。 码本和/或预编码矩阵用于向用户发送信号。