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31. 发明申请

US20070189225A1 System and method for rate shifting for wireless VoIP 有权
标题翻译：无线VoIP速率转换系统及方法
公开(公告)号：US20070189225A1
公开(公告)日：2007-08-16
申请号：US11351369
申请日：2006-02-10
申请人： Lu Qian , Sandeep Shetty
发明人： Lu Qian , Sandeep Shetty
IPC分类号： H04J1/16 , H04Q7/00 , H04Q7/24
CPC分类号： H04L1/0002 , H04L1/0018 , H04L1/0021 , H04L1/18 , H04L47/10 , H04L47/14 , H04L47/2416 , H04L47/25 , H04L47/29 , H04L65/80
摘要： A method of rate shifting specially suited for the voice traffic, which differentiates poor channel conditions from a heavily loaded channel of a WLAN and adapts to the network traffic condition and channel condition promptly with low rate of false shifting. Determining when to rate shift is based on a combination of the received signal strength indication and the retry rate.
摘要翻译：一种特别适用于语音流量的速率偏移的方法，其将恶劣的信道条件与WLAN的重负载信道区分开，并以低误码率适时适应网络流量状况和信道状态。确定何时进行速率偏移是基于接收信号强度指示和重试速率的组合。

32. 发明申请

US20050249157A1 Data rate shifting methods and techniques 有权
标题翻译：数据速率转换方法和技术
公开(公告)号：US20050249157A1
公开(公告)日：2005-11-10
申请号：US10841781
申请日：2004-05-07
申请人： Lu Qian , Michael Lewis
发明人： Lu Qian , Michael Lewis
IPC分类号： H04L12/28 , H04L12/56 , H04W24/00 , H04W28/22 , H04Q7/00
CPC分类号： H04W28/22 , H04L43/0829 , H04L43/0888 , H04L47/14 , H04L47/25 , H04W24/00
摘要： A technique for determining when to change a data rate by determining the cause of packet loss. The technique distinguishes between collision mediated packet loss and poor signal mediated packet loss. Rate shifting to a lower rate is performed after determining poor signals are causing packet loss. After switching to a lower rate, the packet loss rate can be compared to the pre-switch packet loss rate. If the packet loss rate has not improved by shifting to a lower data rate, then the data rate can be shifted to a higher rate. The technique can use a combination of channel response, signal strength, packet loss rate and throughput to determine when to switch data rates. A communication unit can maintain separate histories for each unit it is communicating with and employ a different data rate for each unit.
摘要翻译：一种用于通过确定分组丢失的原因来确定何时改变数据速率的技术。该技术区分了冲突介入的分组丢失和信号中介的分组丢失。在确定不良信号导致分组丢失之后，执行速率转换到较低速率。切换到较低速率后，可以将丢包率与交换机前的丢包率进行比较。如果通过转移到较低的数据速率，丢包率没有得到改善，则数据速率可以转移到更高的速率。该技术可以使用信道响应，信号强度，丢包率和吞吐量的组合来确定何时切换数据速率。通信单元可以为与每个单元进行通信的每个单元维护单独的历史记录，并为每个单元采用不同的数据速率。

33. 发明授权

US07948991B1 Broadcast and multicast transmissions with acknowledgement scheduling 有权
标题翻译：具有确认调度的广播和多播传输
公开(公告)号：US07948991B1
公开(公告)日：2011-05-24
申请号：US12283831
申请日：2008-09-16
申请人： Brian Donald Hart , Lu Qian
发明人： Brian Donald Hart , Lu Qian
IPC分类号： H04L12/28 , G06F9/46
CPC分类号： H04L12/1868 , H04L1/1854 , H04L1/1861 , H04L2001/0093 , H04W72/1289
摘要： In one embodiment, a method includes scheduling acknowledgements from a plurality of receivers in a wireless network, transmitting an acknowledgement schedule to the receivers, broadcasting or multicasting data to the receivers, processing acknowledgements received from receivers, and retransmitting at least a portion of the data to one or more of the receivers if an acknowledgement is not received from the one or more receivers. An apparatus for broadcasting or multicasting data in a wireless network is also disclosed.
摘要翻译：在一个实施例中，一种方法包括从无线网络中的多个接收机调度确认，向接收机发送确认调度，向接收机广播或多播数据，处理从接收机接收的确认，以及重发数据的至少一部分如果没有从一个或多个接收器接收到确认，则发送给一个或多个接收器。还公开了一种用于在无线网络中广播或组播数据的装置。

34. 发明授权

US07944889B2 System and method for rate shifting for wireless VoIP 有权
标题翻译：无线VoIP速率转换系统及方法
公开(公告)号：US07944889B2
公开(公告)日：2011-05-17
申请号：US11351369
申请日：2006-02-10
申请人： Lu Qian , Sandeep Shetty
发明人： Lu Qian , Sandeep Shetty
IPC分类号： H04B7/212
CPC分类号： H04L1/0002 , H04L1/0018 , H04L1/0021 , H04L1/18 , H04L47/10 , H04L47/14 , H04L47/2416 , H04L47/25 , H04L47/29 , H04L65/80
摘要： A method of rate shifting specially suited for the voice traffic, which differentiates poor channel conditions from a heavily loaded channel of a WLAN and adapts to the network traffic condition and channel condition promptly with low rate of false shifting. Determining when to rate shift is based on a combination of the received signal strength indication and the retry rate.
摘要翻译：一种特别适用于语音流量的速率偏移的方法，其将恶劣的信道状况与WLAN的重负载信道区分开来，并以低误码率适时适应网络流量状况和信道状态。确定何时进行速率偏移是基于接收信号强度指示和重试速率的组合。

35. 发明授权

US07872997B2 Multiple receiver aggregation 有权
标题翻译：多个接收器聚合
公开(公告)号：US07872997B2
公开(公告)日：2011-01-18
申请号：US12243192
申请日：2008-10-01
申请人： Lu Qian
发明人： Lu Qian
IPC分类号： H04H20/71 , H04J3/00
CPC分类号： H04W28/06 , H04L1/1628 , H04W74/04
摘要： A technique for multiple receiver aggregation that allows for multiple immediate responses of acknowledgements or block acknowledgements. The technique uses a spoofed network allocation vector (NAV) implemented within an aggregate's PLCP header to protect the aggregate and all of the immediate responses from multiple receivers. The immediate responses are scheduled, the information indicating the scheduled offset time and granted transmission duration for response of each receiver being included in the physical sublayer data unit (PSDU) headers within the aggregate.
摘要翻译：用于多个接收机聚合的技术，允许确认或块确认的多个即时响应。该技术使用在聚合的PLCP报头内实现的欺骗性网络分配向量（NAV）来保护聚合和来自多个接收者的所有即时响应。立即响应被调度，指示预定偏移时间的信息以及每个接收机的响应的授予传输持续时间被包括在聚合体内的物理子层数据单元（PSDU）报头中。

36. 发明申请

US20090274047A1 Distributed Bi-Directional Flow Control in Wireless Mesh Networks 有权
标题翻译：无线网状网络中的分布式双向流控制
公开(公告)号：US20090274047A1
公开(公告)日：2009-11-05
申请号：US12114822
申请日：2008-05-05
申请人： Johannes Petrus Kruys , Lu Qian , Predrag Tosic
发明人： Johannes Petrus Kruys , Lu Qian , Predrag Tosic
IPC分类号： H04L12/24
CPC分类号： H04W28/021 , H04L47/11 , H04L47/125 , H04L47/14 , H04L47/25 , H04L47/263 , H04L47/30 , H04L47/33 , H04W28/12
摘要： A distributed, bidirectional congestion control and starvation avoidance system for wireless mesh networks. In particular implementations, the nodes of the wireless mesh network monitor their respective local buffers for traffic load, and signal upstream and downstream nodes in response to detected congestion or excess capacity to dynamically allocate transmit capacity between neighboring nodes. Particular implementations are capable of mitigating congestion and preventing starvation in a fully distributed, low-overhead, scalable and efficient manner.
摘要翻译：一种用于无线网状网络的分布式双向拥塞控制和饥饿避免系统。在特定实现中，无线网状网络的节点监视其相应的本地缓冲器以用于业务负载，以及响应于检测到的拥塞或过多容量来信号上游和下游节点，以在相邻节点之间动态分配传输容量。具体实现能够以完全分布，低开销，可扩展和高效的方式减轻拥塞并防止饥饿。

37. 发明申请

US20090059881A1 WIRELESS NETWORK SELF-ADAPTIVE LOAD BALANCER 有权
标题翻译：无线网络自适应负载平衡器
公开(公告)号：US20090059881A1
公开(公告)日：2009-03-05
申请号：US12265959
申请日：2008-11-06
申请人： David M. THEOBOLD , Lu Qian
发明人： David M. THEOBOLD , Lu Qian
IPC分类号： H04W84/02 , G06F15/173
CPC分类号： H04W28/00 , H04W84/12
摘要： A load balancer is provided for balancing distribution of wireless clients among wireless access points. The load balancer includes a tracking implementation for tracking at least one telemetry parameter of each wireless client's wireless link with each respective wireless access point. A goal implementation is included for comparing one or more telemetry parameter against at least one predetermined goal to obtain a fitness measure. A control implementation is also provided for varying the operation of at least one of the respective wireless access points and wireless clients in response to the fitness measure, so as to balance the distribution of load among the respective wireless access points.
摘要翻译：提供了一种用于平衡无线接入点之间的无线客户端分配的负载均衡器。负载平衡器包括跟踪实现，用于跟踪每个无线客户端与每个相应无线接入点的无线链路的至少一个遥测参数。包括用于将一个或多个遥测参数与至少一个预定目标进行比较以获得健身度量的目标实现。还提供控制实现来响应于适应度测量来改变相应无线接入点和无线客户端中的至少一个的操作，以便平衡各个无线接入点之间的负载分布。

38. 发明申请

US20080186846A1 Finite State Machine of Traffic Stream Metrics for Adaptation of Load-Based Call Admission Control in Wireless Networks 有权
标题翻译：用于适应无线网络中基于负载的呼叫接纳控制的业务流量度的有限状态机
公开(公告)号：US20080186846A1
公开(公告)日：2008-08-07
申请号：US11671166
申请日：2007-02-05
申请人： David S. Stephenson , Lu Qian , Bretton Lee Douglas , James S. An
发明人： David S. Stephenson , Lu Qian , Bretton Lee Douglas , James S. An
IPC分类号： H04L1/00
CPC分类号： H04W28/18 , H04L47/70 , H04L47/801 , H04L47/805 , H04L47/822 , H04L47/824 , H04W72/0486
摘要： In one embodiment, a method includes receiving a call admission request; in a first state, applying a first call access control (CAC) algorithm to the call admission request; in a second state, applying a second CAC algorithm to the call admission request; and transition between the first state and the second state based on at least one attribute of a radio frequency (RP) environment.
摘要翻译：在一个实施例中，一种方法包括接收呼叫许可请求; 在第一状态下，对呼叫许可请求应用第一呼叫接入控制（CAC）算法; 在第二状态下，对呼叫许可请求应用第二CAC算法; 并且基于射频（RP）环境的至少一个属性在第一状态和第二状态之间进行转换。

39. 发明授权

US07355997B2 Data rate shifting methods and techniques 有权
标题翻译：数据速率转换方法和技术
公开(公告)号：US07355997B2
公开(公告)日：2008-04-08
申请号：US10841781
申请日：2004-05-07
申请人： Lu Qian , Michael E. Lewis
发明人： Lu Qian , Michael E. Lewis
IPC分类号： H04Q7/00
CPC分类号： H04W28/22 , H04L43/0829 , H04L43/0888 , H04L47/14 , H04L47/25 , H04W24/00
摘要： A technique for determining when to change a data rate by determining the cause of packet loss. The technique distinguishes between collision mediated packet loss and poor signal mediated packet loss. Rate shifting to a lower rate is performed after determining poor signals are causing packet loss. After switching to a lower rate, the packet loss rate can be compared to the pre-switch packet loss rate. If the packet loss rate has not improved by shifting to a lower data rate, then the data rate can be shifted to a higher rate. The technique can use a combination of channel response, signal strength, packet loss rate and throughput to determine when to switch data rates. A communication unit can maintain separate histories for each unit it is communicating with and employ a different data rate for each unit.
摘要翻译：一种用于通过确定分组丢失的原因来确定何时改变数据速率的技术。该技术区分了冲突介入的分组丢失和信号中介的分组丢失。在确定不良信号导致分组丢失之后，执行速率转换到较低速率。切换到较低速率后，可以将丢包率与交换机前的丢包率进行比较。如果通过转移到较低的数据速率，丢包率没有得到改善，则数据速率可以转移到更高的速率。该技术可以使用信道响应，信号强度，丢包率和吞吐量的组合来确定何时切换数据速率。通信单元可以为与每个单元进行通信的每个单元维护单独的历史记录，并为每个单元采用不同的数据速率。

40. 发明申请

US20080045230A1 Enhanced load based wireless call admission control 有权
标题翻译：增强的基于负载的无线呼叫准入控制
公开(公告)号：US20080045230A1
公开(公告)日：2008-02-21
申请号：US11505785
申请日：2006-08-16
申请人： Lu Qian , David S. Stephenson
发明人： Lu Qian , David S. Stephenson
IPC分类号： H04Q7/20
CPC分类号： H04W28/16 , H04L47/14 , H04L47/15 , H04L47/2416 , H04L47/30 , H04L47/70 , H04L47/801 , H04L47/805 , H04L47/822 , H04L47/824 , H04W28/26
摘要： In one embodiment, a method includes monitoring utilization of an access medium relative to one or more access classes, receiving a QoS request. The QoS request identifies an access class. The method further includes computing a first allocation of an access medium for the QoS request and approving the QoS request if the computed first allocation is less than an amount of the access medium available to the access class identified in the QoS request.
摘要翻译：在一个实施例中，一种方法包括监视访问介质相对于一个或多个访问类别的使用，接收QoS请求。 QoS请求标识访问类。该方法还包括：如果所计算的第一分配小于在QoS请求中标识的接入类型可用的接入介质的量，则计算QoS请求的接入介质的第一分配并且批准该QoS请求。

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