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    • 108. 发明申请
    • INTELLIGENT NETWORK SELECTION BASED ON QUALITY OF SERVICE AND APPLICATIONS OVER DIFFERENT WIRELESS NETWORKS
    • 基于不同无线网络的服务质量和应用的智能网络选择
    • US20100048205A1
    • 2010-02-25
    • US12197830
    • 2008-08-25
    • Ann C. GuilfordMike VerstegenHong Zhao
    • Ann C. GuilfordMike VerstegenHong Zhao
    • H04Q7/20
    • H04W48/18H04M15/8038H04M2215/34H04W28/0247H04W28/08H04W28/24
    • A system and method for selecting a wireless network is disclosed. The method relates to selecting a wireless network from a plurality of wireless networks. A variation of the invention includes selecting a new platform from a plurality of platforms offered by the current service provider according to a service request from the wireless device. The method comprises determining a requested service associated with the wireless device, determining whether one of the plurality of wireless networks can provide the requested service, and, if one of the plurality of wireless networks can provide the requested service, choosing the one wireless network of the plurality of wireless networks. The method further involves using a variety of parameters in determining which wireless network to choose for servicing the requested service from the wireless device. These parameters include quality of services, application supported, or other business factors such as roaming agreements, traffic load and cost of services. The system comprises at least one wireless network node, a wireless device, and a plurality of wireless networks communicating with each other. Either the wireless device or network node may operate to decide based on the services the wireless device user requires on which network the user will receive service from. The network assignment is accomplished to maximize the speed, cost and efficiency of transmission.
    • 公开了一种用于选择无线网络的系统和方法。 该方法涉及从多个无线网络中选择无线网络。 本发明的变型包括根据来自无线设备的服务请求从当前服务提供商提供的多个平台中选择新平台。 该方法包括确定与无线设备相关联的所请求的服务,确定所述多个无线网络中的一个是否能够提供所请求的服务,以及如果所述多个无线网络中的一个可以提供所请求的服务,则选择所述一个无线网络 多个无线网络。 该方法还涉及使用各种参数来确定从无线设备为哪个无线网络选择用于服务所请求的服务。 这些参数包括服务质量,支持的应用程序或其他业务因素,如漫游协议,流量负载和服务成本。 该系统包括彼此通信的至少一个无线网络节点,无线设备和多个无线网络。 无线设备或网络节点可以基于无线设备用户在用户将从哪个网络接收服务所需的服务来进行操作。 实现网络分配以最大限度地提高传输的速度,成本和效率。
    • 110. 发明授权
    • Method and system for modeling variation of circuit parameters in delay calculation for timing analysis
    • 用于时序分析的延迟计算中电路参数变化的方法和系统
    • US07310792B2
    • 2007-12-18
    • US11014096
    • 2004-12-15
    • Nishath K. VergheseHong Zhao
    • Nishath K. VergheseHong Zhao
    • G06F17/50
    • G06F17/5031
    • A system, method, and computer program accurately models circuit parameter variation for delay calculation. For any given circuit parameter value, a cell is characterized at just three values in the circuit parameter range. An interpolation process generates an equation to calculate delay using the characterization data from the three circuit parameter values. This delay equation calculates the delay for any value in the circuit parameter range. Similar methodology is used to model simultaneous variation of two circuit parameters. The cell is characterized at just six circuit parameter pairs to interpolate the delay equation for any circuit parameter pair in the characterized ranges. This methodology can be extended to accommodate variation of multiple circuit parameters using similar interpolation techniques.
    • 系统,方法和计算机程序准确地对电路参数变化进行延迟计算。 对于任何给定的电路参数值,单元格仅在电路参数范围内的三个值进行表征。 插值过程使用来自三个电路参数值的表征数据产生计算延迟的方程式。 该延迟方程计算电路参数范围内任何值的延迟。 类似的方法用于模拟两个电路参数的同时变化。 该单元的特征在于仅仅六个电路参数对,以在特征化范围内插值任何电路参数对的延迟方程。 可以使用类似的内插技术来扩展该方法以适应多个电路参数的变化。