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    Dynamic call parameter switchover and graceful degradation for optimizing VoIP performance in wireless local area networks
    1.
    发明申请
    Dynamic call parameter switchover and graceful degradation for optimizing VoIP performance in wireless local area networks 审中-公开
    动态呼叫参数切换和优雅的降级，以优化无线局域网中的VoIP性能

    公开(公告)号：US20060007914A1

    公开(公告)日：2006-01-12

    申请号：US10888464

    申请日：2004-07-08

    申请人： Praphul Chandra ,  David Lide ,  Satish Mundra ,  Manoj Sindhwani

    发明人： Praphul Chandra ,  David Lide ,  Satish Mundra ,  Manoj Sindhwani

    IPC分类号： H04L12/66 ,  H04Q7/24

    CPC分类号： H04W28/10 ,  H04L29/06027 ,  H04L65/1083 ,  H04L65/80 ,  H04W28/06 ,  H04W28/08 ,  H04W28/18 ,  H04W80/00 ,  H04W84/12

    摘要： A system and method for transmitting voice data traffic over a wireless medium, such as a voice call using a wireless Internet Protocol mobile phone on a wireless local area network, to increase the quality and the number of voice calls on a Basic Service Set. Endpoints are capable of dynamically switching to alternate voice coding profiles. The WLAN is surveyed by a wireless endpoint to determine whether a congested network condition exists. Coding profiles may be dynamically switched to decrease the congested conditions and improve call quality. If dynamically switching of profiles in not available then the wireless endpoint gracefully degrades the transmission by periodically dropping packets until network congestion reduces and/or call quality increases.

    摘要翻译： 一种用于在无线介质上传输语音数据业务的系统和方法，例如使用无线局域网上的无线因特网协议移动电话的语音呼叫，以增加基本业务集上的语音呼叫的质量和数量。 端点能够动态切换到备用语音编码配置文件。 WLAN由无线终端进行测量，以确定是否存在拥塞的网络条件。 可以动态切换编码简档以减少拥塞状况并改善通话质量。 如果动态切换配置文件不可用，那么无线终端通过周期性地丢弃数据包来正常地降低传输，直到网络拥塞减小和/或呼叫质量增加。

    Increasing the throughput of voice over internet protocol data on wireless local area networks
    2.
    发明申请
    Increasing the throughput of voice over internet protocol data on wireless local area networks 有权
    增加无线局域网上互联网协议数据上的语音吞吐量

    公开(公告)号：US20060072495A1

    公开(公告)日：2006-04-06

    申请号：US10953294

    申请日：2004-09-29

    申请人： Satish Mundra ,  David Lide ,  Praphul Chandra ,  Manoj Sindhwani

    发明人： Satish Mundra ,  David Lide ,  Praphul Chandra ,  Manoj Sindhwani

    IPC分类号： H04Q7/00

    CPC分类号： H04M7/006 ,  H04W24/00 ,  H04W28/06 ,  H04W80/02 ,  H04W84/12

    摘要： A system and method are provided for improving the throughput of wireless networks, such as IEEE 802.11 networks. Individual devices in the network determine the level of activity on the network. In the event that the network is active, the devices increase throughput by skipping the pending packet transmission and appending its data payload to a future packet transmission. By encoding multiple payloads in a single packet transmission, packet overhead is reduced and MAC layer delays are eliminated. The data payloads are subsequently split back into individual packets for transmission over the wired portion of the network.

    摘要翻译： 提供了一种用于提高诸如IEEE 802.11网络的无线网络的吞吐量的系统和方法。 网络中的各个设备决定了网络上的活动级别。 在网络活动的情况下，设备通过跳过未决分组传输并将其数据有效载荷附加到将来的分组传输来增加吞吐量。 通过在单个分组传输中编码多个有效载荷，减少了分组开销并消除了MAC层延迟。 数据有效载荷随后被拆分成单独的分组，以便通过网络的有线部分进行传输。

    Lightweight Voice Over Internet Protocol Phone
    3.
    发明申请
    Lightweight Voice Over Internet Protocol Phone 审中-公开
    轻巧的互联网协议电话语音

    公开(公告)号：US20070121604A1

    公开(公告)日：2007-05-31

    申请号：US11552785

    申请日：2006-10-25

    申请人： Praphul Chandra ,  David Lide ,  Manoj Sindhwani ,  Satish Mundra ,  Samant Kumar ,  Keith Krasnansky ,  Thomas McKinney

    发明人： Praphul Chandra ,  David Lide ,  Manoj Sindhwani ,  Satish Mundra ,  Samant Kumar ,  Keith Krasnansky ,  Thomas McKinney

    IPC分类号： H04L12/66

    CPC分类号： H04L29/06027 ,  H04L65/1053 ,  H04L65/1059 ,  H04L65/1069 ,  H04L67/2861 ,  H04M1/2535

    摘要： Disclosed above are various embodiments of VoIP communication systems that utilize low cost IP phones that rely on a centralized VoIP controller for much of the processing. Reducing the processing taking place on an IP phone may reduce the number of components that need to be on the IP phone which may result in a less expensive IP phone in terms of both cost and power. When the IP phone is embodied as a WIPP, the reduced processing may also result in more efficient communication between the WIPP and an AP. The increased communication efficiency may result in less power being used by the WIPP and effectively extend the battery life. Since a number of redundant components have been centralized, the VoIP system as a whole may be less costly. Also, centralized control may provide greater functionality and versatility in the setup and configuration of a VoIP communication system.

    摘要翻译： 上面公开的是使用低成本IP电话的VoIP通信系统的各种实施例，其依赖于集中式VoIP控制器来进行大部分处理。 降低在IP电话上进行的处理可能减少需要在IP电话上的组件的数量，这可能导致成本和功耗方面较便宜的IP电话。 当IP电话被实现为WIPP时，缩减的处理也可以导致WIPP和AP之间的更有效的通信。 提高的通信效率可能导致WIPP使用的功率较少，并有效延长了电池寿命。 由于许多冗余组件已经集中，因此整个VoIP系统可能成本较低。 此外，集中控制可以在VoIP通信系统的设置和配置中提供更大的功能和多功能性。

    End-point based approach for determining network status in a wireless local area network
    4.
    发明申请
    End-point based approach for determining network status in a wireless local area network 有权
    用于确定无线局域网中的网络状态的基于端点的方法

    公开(公告)号：US20060067226A1

    公开(公告)日：2006-03-30

    申请号：US10951945

    申请日：2004-09-28

    申请人： Praphul Chandra ,  David Lide ,  Manoj Sindhwani

    发明人： Praphul Chandra ,  David Lide ,  Manoj Sindhwani

    IPC分类号： H04J1/16

    CPC分类号： H04W24/00 ,  H04W24/02 ,  H04W84/12

    摘要： Determining the reasons for packet loss in a wireless local area network; such as an IEEE 802.11 network. The method uses the strength of received signals at a wireless station, such as the received signal strength indicator (RSSI), noise levels (e.g, non-802.11 energy in the 2.4 GHz frequency range), and packet loss information together to determine the network status. In most implementations, the 802.11 implementation (e.g., the 802.11 driver) is responsible for maintaining statistics on the RSSI and the noise whereas the measure of the packet loss is the responsibility of the application. The network status is determined by the endpoint station independent from the access point

    摘要翻译： 确定无线局域网丢包的原因; 例如IEEE 802.11网络。 该方法使用无线站处的接收信号的强度，例如接收信号强度指示符（RSSI），噪声电平（例如，2.4GHz频率范围内的非802.11能量）和分组丢失信息，以一起确定网络 状态。 在大多数实现中，802.11实现（例如，802.11驱动器）负责维护关于RSSI和噪声的统计信息，而分组丢失的测量是应用的责任。 网络状态由端点台独立于接入点确定

    End-point based approach for determining network status in a wireless local area network
    5.
    发明授权
    End-point based approach for determining network status in a wireless local area network 有权
    用于确定无线局域网中的网络状态的基于端点的方法

    公开(公告)号：US07515548B2

    公开(公告)日：2009-04-07

    申请号：US10951945

    申请日：2004-09-28

    申请人： Praphul Chandra ,  David Lide ,  Manoj Sindhwani

    发明人： Praphul Chandra ,  David Lide ,  Manoj Sindhwani

    IPC分类号： G01R31/08

    CPC分类号： H04W24/00 ,  H04W24/02 ,  H04W84/12

    摘要： Determining the reasons for packet loss in a wireless local area network; such as an IEEE 802.11 network. The method uses the strength of received signals at a wireless station, such as the received signal strength indicator (RSSI), noise levels (e.g, non-802.11 energy in the 2.4 GHz frequency range), and packet loss information together to determine the network status. In most implementations, the 802.11 implementation (e.g., the 802.11 driver) is responsible for maintaining statistics on the RSSI and the noise whereas the measure of the packet loss is the responsibility of the application. The network status is determined by the endpoint station independent from the access point.

    摘要翻译： 确定无线局域网丢包的原因; 例如IEEE 802.11网络。 该方法使用无线站处的接收信号的强度，例如接收信号强度指示符（RSSI），噪声电平（例如，2.4GHz频率范围内的非802.11能量）和分组丢失信息，以一起确定网络 状态。 在大多数实现中，802.11实现（例如，802.11驱动器）负责维护关于RSSI和噪声的统计信息，而分组丢失的测量是应用的责任。 网络状态由端点台独立于接入点确定。

    Call parameter selection and self-enforced admission control for optimizing voice over internet protocol performance in wireless networks
    7.
    发明申请
    Call parameter selection and self-enforced admission control for optimizing voice over internet protocol performance in wireless networks 审中-公开
    呼叫参数选择和自强制接纳控制，用于优化无线网络中的互联网协议性能

    公开(公告)号：US20060072522A1

    公开(公告)日：2006-04-06

    申请号：US10953683

    申请日：2004-09-29

    申请人： Praphul Chandra ,  David Lide ,  Satish Kumar Mundra ,  Manoj Sindhwani

    发明人： Praphul Chandra ,  David Lide ,  Satish Kumar Mundra ,  Manoj Sindhwani

    IPC分类号： H04Q7/24

    CPC分类号： H04L29/06027 ,  H04L65/1069 ,  H04L65/4007 ,  H04L65/80 ,  H04W28/02 ,  H04W48/06 ,  H04W72/1242 ,  H04W84/12

    摘要： A method for transmitting voice data traffic over a wireless medium using a decision process for the admission of a voice call, such as a call voice over Internet Protocol (VoIP) over a wireless local area network (WLAN). Admission of the call through the network is based upon the priority level of the call and a congestion level of the WLAN in order to increase the quality and the number of calls on a BSS. Paramters such as codec and packetization periods are selected for the call based upon the priority and congestion level. As the level of congestion in the network Increases, only calls above a certain Priority level are allowed into the network.

    摘要翻译： 一种用于通过无线局域网（WLAN）的诸如通过因特网协议（VoIP）的呼叫语音接入语音呼叫的决定过程在无线介质上发送语音数据业务的方法。 通过网络接纳呼叫是基于呼叫的优先级和WLAN的拥塞级别，以便提高BSS上的呼叫的质量和数量。 基于优先级和拥塞级别，为呼叫选择编解码器和分组化周期等参数。 随着网络拥塞程度的增加，只有在某一优先级以上的呼叫被允许进入网络。

    Minimizing handoffs and handoff times in wireless local area networks
    8.
    发明申请
    Minimizing handoffs and handoff times in wireless local area networks 有权
    在无线局域网中最大限度地减少切换和切换时间

    公开(公告)号：US20060072507A1

    公开(公告)日：2006-04-06

    申请号：US10951974

    申请日：2004-09-28

    申请人： Praphul Chandra ,  Manoj Sindhwani ,  David Lide

    发明人： Praphul Chandra ,  Manoj Sindhwani ,  David Lide

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/245 ,  H04W84/12

    摘要： A method for reducing the number of channels that are scanned during a handoff situation for a wireless endpoint station in a wireless local area network (WLAN), such as an IEEE 802.11 network, by tracking past user movements within the WLAN. A suitable sequence of channels to be scanned is generated so that reduce the number of handoffs are reduced and the average time during a handoff is reduced. To reduce handoffs and handoff latencies, the principle of locality (user movement patterns tend to be repetitive) is used. By tracking the past handoffs, future handoffs are predicted.

    摘要翻译： 一种用于通过跟踪WLAN内的过去的用户移动来减少无线局域网（WLAN）（诸如IEEE 802.11网络）中的无线端点站在切换情况期间扫描的信道数量的方法。 产生要被扫描的合适的信道序列，从而减少切换次数减少，并且减少切换期间的平均时间。 为了减少切换和切换延迟，使用局部性原则（用户移动模式往往是重复的）。 通过跟踪过去的切换，预测未来的切换。

    Minimizing handoffs and handoff times in wireless local area networks
    10.
    发明授权
    Minimizing handoffs and handoff times in wireless local area networks 有权
    在无线局域网中最大限度地减少切换和切换时间

    公开(公告)号：US07397779B2

    公开(公告)日：2008-07-08

    申请号：US10951974

    申请日：2004-09-28

    申请人： Praphul Chandra ,  Manoj Sindhwani ,  David Lide

    发明人： Praphul Chandra ,  Manoj Sindhwani ,  David Lide

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/245 ,  H04W84/12

    摘要： A method for reducing the number of channels that are scanned during a handoff situation for a wireless endpoint station in a wireless local area network (WLAN), such as an IEEE 802.11 network, by tracking past user movements within the WLAN. A suitable sequence of channels to be scanned is generated so that reduce the number of handoffs are reduced and the average time during a handoff is reduced. To reduce handoffs and handoff latencies, the principle of locality (user movement patterns tend to be repetitive) is used. By tracking the past handoffs, future handoffs are predicted.

    摘要翻译： 一种用于通过跟踪WLAN内的过去的用户移动来减少无线局域网（WLAN）（诸如IEEE 802.11网络）中的无线端点站在切换情况期间扫描的信道数量的方法。 产生要被扫描的合适的信道序列，从而减少切换次数减少，并且减少切换期间的平均时间。 为了减少切换和切换延迟，使用局部性原则（用户移动模式往往是重复的）。 通过跟踪过去的切换，预测未来的切换。