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1. 发明申请

US20060077942A1 Cooperative wireless communications, such as cooperative medium access control for example 有权
标题翻译：合作无线通信，例如协作媒体访问控制
公开(公告)号：US20060077942A1
公开(公告)日：2006-04-13
申请号：US11246030
申请日：2005-10-07
申请人： Shivendra Panwar , Pei Liu , Zhifeng Tao
发明人： Shivendra Panwar , Pei Liu , Zhifeng Tao
IPC分类号： H04Q7/24
CPC分类号： H04W40/00 , H04L45/121 , H04W84/18
摘要： When it is advantageous to do so, a wireless LAN station sends data packets to a destination station via an intermediate station, instead of to the destination station directly. That is, the intermediate station, which serves as a helper to the source, forwards packets received from the source station to the intended destination station. This cooperative data transmission approach can result in system performance improvement, as long as the total time consumed by two-hop transmission (i.e., transmission via the helper station) is less than direct transmission. Such a determination may be made using rate information stored at each station. Specifically, using the rate information, signaling needed to set up a transmission, the amount of data to be transmitted, etc., transmitting the data directly and via a help station may be compared.
摘要翻译：当这样做有利时，无线LAN站经由中间站将数据分组发送到目的站，而不是直接发送到目的站。也就是说，作为来源的帮助者的中间站将从源站接收的分组转发到预定的目的地站。只要通过两跳传输（即经由辅助站的传输）消耗的总时间小于直接传输，该协作数据传输方法可以导致系统性能改善。可以使用存储在每个站处的速率信息来进行这样的确定。具体地，可以比较速率信息，建立传输所需的信令，要发送的数据量等，直接和经由帮助台发送数据。

2. 发明申请

US20080285480A1 Cooperative Wireless Communications 有权
标题翻译：合作无线通信
公开(公告)号：US20080285480A1
公开(公告)日：2008-11-20
申请号：US11937823
申请日：2007-11-09
申请人： Shivendra S. Panwar , Pei Liu , Zhifeng Tao
发明人： Shivendra S. Panwar , Pei Liu , Zhifeng Tao
IPC分类号： H04L12/26
CPC分类号： H04W40/00 , H04L45/121 , H04W84/18
摘要： When it is advantageous to do so, a wireless LAN station sends data packets to a destination station via an intermediate station, instead of to the destination station directly. That is, the intermediate station, which serves as a helper to the source, forwards packets received from the source station to the intended destination station. This cooperative data transmission approach can result in system performance improvement, as long as the total time consumed by two-hop transmission (i.e., transmission via the helper station) is less than direct transmission. Such a determination may be made using rate information stored at each station. Specifically, using the rate information, signaling needed to set up a transmission, the amount of data to be transmitted, etc., transmitting the data directly and via a help station may be compared.
摘要翻译：当这样做有利时，无线LAN站经由中间站将数据分组发送到目的站，而不是直接发送到目的站。也就是说，作为来源的帮助者的中间站将从源站接收的分组转发到预定的目的地站。只要通过两跳传输（即经由辅助站的传输）消耗的总时间小于直接传输，该协作数据传输方法可以导致系统性能改善。可以使用存储在每个站处的速率信息来进行这样的确定。具体地，可以比较速率信息，建立传输所需的信令，要发送的数据量等，直接和经由帮助台发送数据。

3. 发明授权

US08175003B2 Cooperative wireless communications 有权
标题翻译：合作无线通信
公开(公告)号：US08175003B2
公开(公告)日：2012-05-08
申请号：US11937823
申请日：2007-11-09
申请人： Shivendra S. Panwar , Pei Liu , Zhifeng Tao
发明人： Shivendra S. Panwar , Pei Liu , Zhifeng Tao
IPC分类号： H04L12/28
CPC分类号： H04W40/00 , H04L45/121 , H04W84/18
摘要： When it is advantageous to do so, a wireless LAN station sends data packets to a destination station via an intermediate station, instead of to the destination station directly. That is, the intermediate station, which serves as a helper to the source, forwards packets received from the source station to the intended destination station. This cooperative data transmission approach can result in system performance improvement, as long as the total time consumed by two-hop transmission (i.e., transmission via the helper station) is less than direct transmission. Such a determination may be made using rate information stored at each station. Specifically, using the rate information, signaling needed to set up a transmission, the amount of data to be transmitted, etc., transmitting the data directly and via a help station may be compared.
摘要翻译：当这样做有利时，无线LAN站经由中间站将数据分组发送到目的站，而不是直接发送到目的站。也就是说，作为来源的帮助者的中间站将从源站接收的分组转发到预定的目的地站。只要通过两跳传输（即经由辅助站的传输）消耗的总时间小于直接传输，该协作数据传输方法可以导致系统性能改善。可以使用存储在每个站处的速率信息来进行这样的确定。具体地，可以比较速率信息，建立传输所需的信令，要发送的数据量等，直接和经由帮助台发送数据。

4. 发明授权

US07330457B2 Cooperative wireless communications 有权
标题翻译：合作无线通信
公开(公告)号：US07330457B2
公开(公告)日：2008-02-12
申请号：US11246030
申请日：2005-10-07
申请人： Shivendra S. Panwar , Pei Liu , Zhifeng Tao
发明人： Shivendra S. Panwar , Pei Liu , Zhifeng Tao
IPC分类号： H04Q7/20 , H04Q7/38
CPC分类号： H04W40/00 , H04L45/121 , H04W84/18
摘要： When it is advantageous to do so, a wireless LAN station sends data packets to a destination station via an intermediate station, instead of to the destination station directly. That is, the intermediate station, which serves as a helper to the source, forwards packets received from the source station to the intended destination station. This cooperative data transmission approach can result in system performance improvement, as long as the total time consumed by two-hop transmission (i.e., transmission via the helper station) is less than direct transmission. Such a determination may be made using rate information stored at each station. Specifically, using the rate information, signaling needed to set up a transmission, the amount of data to be transmitted, etc., transmitting the data directly and via a help station may be compared.
摘要翻译：当这样做有利时，无线LAN站经由中间站将数据分组发送到目的站，而不是直接发送到目的站。也就是说，作为来源的帮助者的中间站将从源站接收的分组转发到预定的目的地站。只要通过两跳传输（即经由辅助站的传输）消耗的总时间小于直接传输，该协作数据传输方法可以导致系统性能改善。可以使用存储在每个站处的速率信息来进行这样的确定。具体地，可以比较速率信息，建立传输所需的信令，要发送的数据量等，直接和经由帮助台发送数据。

5. 发明授权

US08576876B2 Method and system for determining and optimizing throughput of short range wireless network 有权
标题翻译：确定和优化短距离无线网络吞吐量的方法和系统
公开(公告)号：US08576876B2
公开(公告)日：2013-11-05
申请号：US13482509
申请日：2012-05-29
申请人： Yijin Zhang , Pingping Xu , Pei Liu
发明人： Yijin Zhang , Pingping Xu , Pei Liu
IPC分类号： H04J3/00
CPC分类号： H04W24/02 , H04W28/18 , H04W74/0808
摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.
摘要翻译：提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。

6. 发明申请

US20120230318A1 Method and System for Determining and Optimizing Throughput of Short Range Wireless Network 有权
标题翻译：确定和优化短距离无线网络吞吐量的方法和系统
公开(公告)号：US20120230318A1
公开(公告)日：2012-09-13
申请号：US13482509
申请日：2012-05-29
申请人： Yijin Zhang , Pingping Xu , Pei Liu
发明人： Yijin Zhang , Pingping Xu , Pei Liu
IPC分类号： H04W84/12
CPC分类号： H04W24/02 , H04W28/18 , H04W74/0808
摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.
摘要翻译：提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。

7. 发明授权

US08208487B2 Method and system for determining and optimizing throughput of short range wireless network 有权
标题翻译：确定和优化短距离无线网络吞吐量的方法和系统
公开(公告)号：US08208487B2
公开(公告)日：2012-06-26
申请号：US12412670
申请日：2009-03-27
申请人： Yijin Zhang , Pingping Xu , Pei Liu
发明人： Yijin Zhang , Pingping Xu , Pei Liu
IPC分类号： H04J3/00
CPC分类号： H04W24/02 , H04W28/18 , H04W74/0808
摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.
摘要翻译：提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。

8. 发明授权

US08086095B2 Audio and video apparatus and method for controlling the same 失效
标题翻译：音视频设备及其控制方法
公开(公告)号：US08086095B2
公开(公告)日：2011-12-27
申请号：US12171251
申请日：2008-07-10
申请人： Chun-Lung Hung , Tao Wang , Shi-Ming Zhang , Wang-Chang Duan , Wen-Ming Chen , Pei Liu
发明人： Chun-Lung Hung , Tao Wang , Shi-Ming Zhang , Wang-Chang Duan , Wen-Ming Chen , Pei Liu
IPC分类号： H04N7/26
CPC分类号： G11B19/02 , G11B31/02
摘要： An audio and video (AV) apparatus includes a player module for playing audio and video files, generating audio and video signals, and an internal display and an internal speaker. The AV apparatus further includes: a first switch for generating first instructions; an output module for being externally connected to output the audio and video signals; and a control module connected to the first switch. The control module being configured for disabling the internal display and internal speaker at receiving the first instructions at a situation that the output module is externally connected to output the audio and video signals, and disabling the internal display while keeping the internal speaker enabled at receiving the first instruction at a situation that the output module is not externally connected. A method for controlling the audio and video apparatus is provided as well.
摘要翻译：音频和视频（AV）设备包括用于播放音频和视频文件的播放器模块，产生音频和视频信号，以及内部显示器和内部扬声器。 AV装置还包括：用于产生第一指令的第一开关; 用于外部连接以输出音频和视频信号的输出模块; 以及连接到第一开关的控制模块。控制模块被配置为在输出模块被外部连接以输出音频和视频信号的情况下接收第一指令而禁用内部显示器和内部扬声器，并且在保持内部扬声器能够接收到内部扬声器的同时禁用内部显示器在输出模块未外部连接的情况下的第一条指令。还提供了一种用于控制音频和视频设备的方法。

9. 发明授权

US08611271B2 Robust cooperative relaying in a wireless LAN: cross-layer design 有权
标题翻译：无线LAN中的鲁棒协同中继：跨层设计
公开(公告)号：US08611271B2
公开(公告)日：2013-12-17
申请号：US12938101
申请日：2010-11-02
申请人： Elza Erkip , Pei Liu , Chun Nie , Shivendra S. Panwar
发明人： Elza Erkip , Pei Liu , Chun Nie , Shivendra S. Panwar
IPC分类号： H03C7/00
CPC分类号： H04B7/15592 , H04B7/026 , H04W74/08 , H04W88/04
摘要： A distributed and opportunistic medium access control (MAC) layer protocol for randomized distributed space-time coding (R-DSTC), which may be deployed in an IEEE 802.11 wireless local area network (WLAN), is described. Unlike other cooperative MAC designs, there is no need to predetermine, before packet transmission, which stations will serve as relays. Instead, the MAC layer protocol opportunistically recruits relay stations on the fly. Network capacity and delay performance is much better than legacy IEEE 802.11g network, and even cooperative forwarding using one relay station. Avoiding the need to collect the station-to-station channel statistics considerably reduces overhead otherwise required for channel measurement and signaling.
摘要翻译：描述了可以部署在IEEE 802.11无线局域网（WLAN）中的用于随机分布时空编码（R-DSTC）的分布式和机会性介质访问控制（MAC）层协议。与其他合作MAC设计不同，在分组传输之前，不需要预先确定哪些站将用作中继站。相反，MAC层协议机会地即时招募中继站。网络容量和延迟性能远优于传统IEEE 802.11g网络，甚至使用一个中继站进行协作转发。避免收集站对站信道统计的需要大大减少了信道测量和信令所需的开销。

10. 发明授权

US08792367B2 CoopMAX: a cooperative MAC with randomized distributed space time coding for an IEEE 802.16 network 有权
标题翻译： CoopMAX：用于IEEE 802.16网络的随机分布式空间时间编码的协作MAC
公开(公告)号：US08792367B2
公开(公告)日：2014-07-29
申请号：US13010951
申请日：2011-01-21
申请人： Chun Nie , Pei Liu , Thanasis Korakis , Elza Erkip , Shivendra S. Panwar
发明人： Chun Nie , Pei Liu , Thanasis Korakis , Elza Erkip , Shivendra S. Panwar
IPC分类号： H04W24/00
CPC分类号： H04W24/00 , H04B7/15592
摘要： Cooperative communication is a technique that can be employed to meet the increased throughput needs of next generation WiMAX systems. In a cooperative scenario, multiple stations can jointly emulate the antenna elements of a multi-input multi-output system in a distributed fashion. A framework for a randomized distributed space-time coding (“R-DSTC”) technique in the emerging relay-assisted WiMAX network, and the development of a cooperative medium access control (“MAC”) layer protocol, called CoopMAX, for R-DSTC deployment in an IEEE 802.16 system, is described. The technique described couples the MAC layer with the physical (PHY) layer for performance optimization. The PHY layer yields significant diversity gain, while the MAC layer achieves a substantial end-to-end throughput gain.
摘要翻译：合作通信是可以用于满足下一代WiMAX系统增加的吞吐量需求的技术。在合作方案中，多个站可以以分布的方式共同模拟多输入多输出系统的天线元件。在新兴的中继辅助WiMAX网络中的随机分布式空时编码（“R-DSTC”）技术的框架，以及称为CoopMAX的协作媒体接入控制（“MAC”）层协议的开发，用于R- 描述了IEEE 802.16系统中的DSTC部署。所描述的技术将MAC层与物理（PHY）层耦合以进行性能优化。 PHY层产生显着的分集增益，而MAC层实现了大量的端到端吞吐量增益。

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