公开(公告)号：US20070202842A1

公开(公告)日：2007-08-30

申请号：US11598920

申请日：2006-11-13

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04Q7/20

CPC分类号： H04N19/89

摘要： A method and system for transmitting uncompressed video over a wireless channel by inputting a frame of pixel information, partitioning spatially correlated pixels into different packets, and transmitting the packets separately over a wireless channel. For robust transmission, error detection data can be generated for each packet and appended to each packet before transmission. A receiver receives the transmitted packets and checks if a received packet is corrupt based on the appended error detection data. For a corrupt packet, the receiver corrects the corrupt pixels using pixel information in other received packets containing neighboring pixels to recover each corrupt pixel in the corrupt packet.

摘要翻译： 一种方法和系统，用于通过输入像素信息的帧，通过无线信道发送未压缩的视频，将空间相关的像素划分成不同的分组，以及通过无线信道分别发送分组。 对于鲁棒传输，可以为每个分组生成错误检测数据，并在传输之前附加到每个分组。 接收器接收所发送的分组，并根据所附的错误检测数据来检查接收的分组是否损坏。 对于损坏的数据包，接收器使用包含相邻像素的其他接收数据包中的像素信息来校正损坏的像素，以恢复损坏的数据包中的每个损坏的像素。

公开(公告)号：US08837435B2

公开(公告)日：2014-09-16

申请号：US11981018

申请日：2007-10-31

申请人： Harkirat Singh ,  Huai-Rong Shao ,  Chiu Ngo

发明人： Harkirat Singh ,  Huai-Rong Shao ,  Chiu Ngo

IPC分类号： H04B7/212 ,  H04W4/00 ,  H04L12/403 ,  H04L12/413 ,  H04W74/08

CPC分类号： H04W74/0816 ,  H04L12/4035 ,  H04L12/413 ,  H04W74/08

摘要： A method and a system for medium access control among devices in a communication system is provided. One implementation involves selecting a contention-based control period for access to a shared communication medium; dividing the contention-based control period into multiple time slots, wherein each slot has a duration that is a function of one or more of the duration of transmission of a request to send (RTS) frame, the duration of transmission of a clear to send (CTS) frame, and an inter frame space (IFS) duration therebetween; and transmitting an RTS frame in a selected slot for allocating a reservation period for accessing the medium for data transmission.

摘要翻译： 提供了一种用于通信系统中的设备之间的媒体访问控制的方法和系统。 一个实现涉及选择用于访问共享通信介质的基于竞争的控制周期; 将基于竞争的控制周期划分成多个时隙，其中每个时隙具有作为发送请求（RTS）帧的发送的持续时间中的一个或多个的功能的持续时间，发送的清除持续时间 （CTS）帧，以及帧间间隔（IFS）的间隔; 以及在所选择的时隙中发送RTS帧，以分配用于访问用于数据传输的介质的预留时段。

公开(公告)号：US08432938B2

公开(公告)日：2013-04-30

申请号：US11728376

申请日：2007-03-26

申请人： Harkirat Singh ,  Huai-Rong Shao ,  Pengfei Xia ,  Chiu Ngo

发明人： Harkirat Singh ,  Huai-Rong Shao ,  Pengfei Xia ,  Chiu Ngo

IPC分类号： H04J3/24 ,  H04J3/00 ,  H04B1/00 ,  G08C25/02

CPC分类号： H04N7/20

摘要： A method and system for transmitting video information from a sender to a receiver over a wireless channel, is provided. Video information bits are placed into multiple data packets, and transmitted in a burst sequence from a sender to a receiver over a wireless channel in a first time frame. Transmission of each data packet is separated from transmission of the next data packet by an inter-frame time period which is shortened by a channel switching duration. Then, selected video information bits are retransmitted to from the sender to the receiver in a second time frame.

摘要翻译： 提供了一种通过无线信道从发送方向接收者发送视频信息的方法和系统。 视频信息位被放置在多个数据分组中，并且在第一时间帧中通过无线信道以突发序列从发送方发送到接收方。 每个数据分组的传输与下一个数据分组的传输分离，间隔时间间隔缩短了一个信道切换持续时间。 然后，在第二时间帧中，将所选择的视频信息比特从发送方重发到接收者。

公开(公告)号：US08325686B2

公开(公告)日：2012-12-04

申请号：US11787576

申请日：2007-04-17

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04L5/14 ,  H04B7/204 ,  H04B7/212 ,  H04J3/00 ,  H04W72/00

CPC分类号： H04W74/04 ,  H04W28/26 ,  H04W72/0446

摘要： A channel time allocation and access control process for communication in wireless networks is provided. The channel time is divided into channel time blocks (CTBs), including one or more reserved CTBs and one or more unreserved CTBs. Schedules are implemented, wherein one or more periodic, equal-sized CTBs are reserved for isochronous streams. Dynamic CTB extension and truncation allow flexible channel time allocation.

摘要翻译： 提供了一种用于无线网络通信的信道时间分配和接入控制过程。 信道时间被分为信道时间块（CTB），包括一个或多个保留的CTB和一个或多个未保留的CTB。 执行时间表，其中为等时流保留一个或多个周期性等大小的CTB。 动态CTB扩展和截断允许灵活的信道时间分配。

公开(公告)号：US08265657B2

公开(公告)日：2012-09-11

申请号：US11801601

申请日：2007-05-10

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04W24/00 ,  H04M11/04

CPC分类号： H04W8/005

摘要： A method and system for device discovery in a wireless network is provided. The device discovery involves directionally transmitting a data unit from a transmitting station over a channel in different directions to emulate omni-directional transmission, receiving the data unit transmissions from different directions at a receiving station, determining the quality of the transmissions received from the different directions, and detecting location information for the transmitting station relative to the receiving station based on the highest quality transmission among the transmissions received from the different directions. Further, if a channel has sufficient bandwidth to satisfy direct link communication between two stations, then during a direct link set-up stage, the two stations conduct a probing message exchange using omni-direction transmission, and upon successful probing, obtain communication link status information and set proper communication configurations for the two stations based on the communication link status information.

摘要翻译： 提供了一种用于无线网络中的设备发现的方法和系统。 设备发现涉及通过不同方向上的信道从发射台定向发送数据单元以模拟全向传输，在接收站从不同方向接收数据单元传输，确定从不同方向接收的传输的质量 以及基于从不同方向接收的传输中的最高质量传输来检测发送站相对于接收站的位置信息。 此外，如果信道具有足够的带宽以满足两个站之间的直接链路通信，则在直接链路建立阶段期间，两个站使用全向传输进行探测消息交换，并且在成功探测时获得通信链路状态 信息，并根据通信链路状态信息设置两个站的适当通信配置。

公开(公告)号：US08259647B2

公开(公告)日：2012-09-04

申请号：US11711302

申请日：2007-02-27

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04W4/00 ,  H04B7/216

CPC分类号： H04N21/43637 ,  H04W72/1278

摘要： A system and method for performing medium access control in a system for wireless communication of uncompressed video is disclosed. In one aspect, the method includes communicating a control initiation request message during a contention based period of a superframe period. The control initiation request message contains information allowing a device coordinator to determine a reserved time slot for communication of the requested message exchange. The requested message exchange is then performed in a non-contentious environment, thereby limiting collisions of contention based messages. The control initiation procedure and subsequent message exchanges take place on a low-rate channel. Transmission on the low-rate channel is time division duplexed with a high-rate channel, where transmission at any one time can take place on either the high-rate or the low-rate channel.

摘要翻译： 公开了一种用于在用于无压缩视频的无线通信的系统中执行介质访问控制的系统和方法。 一方面，该方法包括在超帧周期的基于竞争的时段期间传送控制发起请求消息。 控制发起请求消息包含允许设备协调器确定用于通信所请求的消息交换的保留时隙的信息。 然后在非争用的环境中执行所请求的消息交换，从而限制基于争用的消息的冲突。 控制启动过程和后续消息交换在低速率通道上进行。 低速率信道上的传输是与高速率信道进行时分双工，其中任何一个时间的传输都可以在高速率或低速率信道上进行。

公开(公告)号：US08111654B2

公开(公告)日：2012-02-07

申请号：US11726056

申请日：2007-03-20

申请人： Chiu Ngo ,  Harkirat Singh ,  Huai-Rong Shao

发明人： Chiu Ngo ,  Harkirat Singh ,  Huai-Rong Shao

IPC分类号： H04W4/00

CPC分类号： H04N7/167 ,  H04L1/06 ,  H04L1/1671 ,  H04L2001/0093 ,  H04N19/61 ,  H04N21/4122 ,  H04N21/43637 ,  H04N21/6583

摘要： A wireless communication system and method for wireless communication are disclosed. One embodiment of the system includes a wireless communication device. The device includes a receiver configured to receive a data packet via a channel. The device further includes a transmitter configured to send an acknowledgment (ACK) signal via a low-rate channel upon receiving the data packet. The low-rate channel has a directional mode and an omni-directional mode. The acknowledgment signal includes a low-rate physical layer (LRP) preamble and an acknowledgment (ACK) header including a mode index field. The mode index field includes a plurality of bits indicative of whether the ACK signal is transmitted using the directional mode or the omni-directional mode.

摘要翻译： 公开了一种用于无线通信的无线通信系统和方法。 该系统的一个实施例包括无线通信设备。 该设备包括被配置为经由信道接收数据分组的接收机。 该设备还包括发射机，其被配置为在接收到数据分组时经由低速率信道发送确认（ACK）信号。 低速率信道具有定向模式和全向模式。 确认信号包括低速率物理层（LRP）前导码和包括模式索引字段的确认（ACK）报头。 模式索引字段包括表示使用定向模式或全向模式来发送ACK信号的多个比特。

公开(公告)号：US07979784B2

公开(公告)日：2011-07-12

申请号：US11728002

申请日：2007-03-22

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： G06F11/10 ,  H03M13/00

CPC分类号： H04L1/007 ,  H04L1/0061 ,  H04L1/0075 ,  H04L1/0083 ,  H04L1/1607 ,  H04L1/1614 ,  H04L1/1877 ,  H04L1/1887 ,  H04L29/06027 ,  H04L65/607 ,  H04L65/80 ,  H04N21/2383 ,  H04N21/43637 ,  H04N21/4382 ,  H04N21/6375

摘要： A method and system for enhancing transmission reliability of video information over a wireless channel is provided. The video information includes pixels, each having a plurality of components and each component including video information bits that are placed in sub-packets within a packet. Error detection information is determined for one or more sub-packets, and placed in the packet. Then the packet is transmitted from a transmitter to a receiver a wireless channel, wherein the receiver uses the error detection information per sub-packet to check for transmission errors and request retransmission of erroneous video information bits based on their perceptual importance.

摘要翻译： 提供了一种通过无线信道提高视频信息的传输可靠性的方法和系统。 视频信息包括每个具有多个分量的像素，并且每个分量包括放置在分组内的子分组中的视频信息比特。 为一个或多个子分组确定错误检测信息，并将其放置在分组中。 然后，分组从发射机发送到接收机无线信道，其中接收机使用每个子分组的错误检测信息来检查传输错误，并且基于它们的感知重要性来请求重传错误的视频信息比特。

公开(公告)号：US07925269B2

公开(公告)日：2011-04-12

申请号：US11801611

申请日：2007-05-10

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04W72/08

CPC分类号： H04W72/02 ,  H04W24/00 ,  H04W72/08 ,  H04W76/10

摘要： A method and system for establishing a channel in a wireless video area network, is provided. Establishing a channel involves scanning available high-rate and low-rate channels, selecting a channel from the available channels with minimal interference with other networks, determining if the selected channel remains available for a listening period, and if the selected channel remains available, then starting communication on the selected channel. The selected channel is a high-rate channel and a corresponding low-rate channel.

摘要翻译： 提供了一种在无线视频区域网络中建立信道的方法和系统。 建立频道包括扫描可用的高速率和低速率信道，从可用信道中选择一个信道，对其他网络的干扰最小，确定所选信道是否在监听期间保持可用，如果所选信道保持可用，则 在所选频道上启动通讯。 选择的信道是高速率信道和相应的低速率信道。

公开(公告)号：US07782836B2

公开(公告)日：2010-08-24

申请号：US11725859

申请日：2007-03-20

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04J3/22

CPC分类号： H04L1/0083 ,  H04L1/1628 ,  H04L2001/0098

摘要： A method and system for wireless communication of different information types over a wireless channel, is provided. Information comprising different information types is formed into a composite aggregation of the different information types, and the composite aggregation is transmitted from a sender to a receiver over a wireless channel. A composite acknowledgement (ACK) format is utilized by the receiver to reduce the overhead in low-rate channels.

摘要翻译： 提供了一种用于通过无线信道进行不同信息类型的无线通信的方法和系统。 包含不同信息类型的信息被形成为不同信息类型的复合聚合，并且通过无线信道将复合聚合从发送方发送到接收方。 接收机使用复合确认（ACK）格式来减少低速率信道的开销。