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    • 1. 发明授权
    • System and method for providing location services for multiple access networks from a single location server
    • 用于从单个位置服务器提供用于多个接入网络的位置服务的系统和方法
    • US08762519B2
    • 2014-06-24
    • US12562671
    • 2009-09-18
    • Martin ThomsonJames WinterbottomGary Neil JustussonEddy Corbett
    • Martin ThomsonJames WinterbottomGary Neil JustussonEddy Corbett
    • G06F15/173
    • H04L65/1063H04W4/02
    • A system and method for determining the location of a target device attached to an access network connected to a location server, the location server having a plurality of access networks connected thereto. A location request may be received for a target device whereby the target device is identified as a function of one or more parameters. An access network may be identified from the plurality of access networks to which the target device is attached as a function of the one or more parameters. Each access network in the plurality of access networks connected to the location server may be assigned one or more logical identifiers by which an individual location request may be allocated to the respective access network. An estimated location of the target device may then be determined as a function of the one or more logical identifiers using a location algorithm appropriate for the identified access network.
    • 一种用于确定连接到连接到位置服务器的接入网络上的目标设备的位置的系统和方法,所述位置服务器具有连接到其上的多个接入网络。 可以为目标设备接收位置请求,由此将目标设备识别为一个或多个参数的函数。 根据该一个或多个参数,可以从目标设​​备所附接的多个接入网络中识别接入网络。 连接到位置服务器的多个接入网络中的每个接入网络可以被分配一个或多个逻辑标识符,通过该逻辑标识符可以将单独的位置请求分配给相应的接入网络。 然后可以使用适合于所识别的接入网络的位置算法来将目标设备的估计位置确定为一个或多个逻辑标识符的函数。
    • 4. 发明授权
    • System and method for managing created location contexts in a location server
    • 用于在位置服务器中管理创建的位置上下文的系统和方法
    • US08391884B2
    • 2013-03-05
    • US12411928
    • 2009-03-26
    • Gary Neil JustussonAnthony James Winterbottom
    • Gary Neil JustussonAnthony James Winterbottom
    • H04L12/66H04L9/00G06F7/00
    • H04W4/02H04L67/18H04W4/04H04W4/20
    • A system and method for handling a location request for a target device using a location uniform resource identifier (“URI”). A location request may be received for a target device from a requesting entity, the target device having a location context information represented by a location URI and including starting information, initial validating information and policy information. The form of the location URI may be verified by a location information server (“LIS”), the form including at least an encrypted context string. This string may be extracted and decrypted by the LIS and it may be determined whether the request can continue as a function of the policy information. If the request can continue, then an estimated location of the target device may be determined as a function of the starting information. Additional validating information may be collected and correlated the initial validating information. If these validating information correlate, then the estimated location of the target device may be provided to the requesting entity.
    • 一种使用位置统一资源标识符(URI)来处理对目标设备的位置请求的系统和方法。 可以从请求实体接收目标设备的位置请求,目标设备具有由位置URI表示的位置上下文信息,并且包括起始信息,初始验证信息和策略信息。 位置URI的形式可以由位置信息服务器(LIS)来验证,该形式至少包括加密的上下文字符串。 可以由LIS提取和解密该字符串,并且可以确定请求是否可以作为策略信息的函数继续。 如果请求可以继续,则可以根据起始信息确定目标设备的估计位置。 可以收集附加的验证信息并将初始验证信息相关联。 如果这些验证信息相关,则可以向请求实体提供目标设备的估计位置。
    • 8. 发明授权
    • Location measurement acquisition adaptive optimization
    • 位置测量采集自适应优化
    • US08289210B2
    • 2012-10-16
    • US12580043
    • 2009-10-15
    • Martin ThomsonJames Winterbottom
    • Martin ThomsonJames Winterbottom
    • G01S3/02
    • G01S5/02
    • A disclosed method uses the results of location queries to tune the value of measurements of a property to obtain a statistically representative measurement for geo location. As location requests arrive, a current measurement value associated with the serving area or location is used to determine the number of measurements to obtained; the resulting uncertainty is mapped against the number of measurements required to determine that value. If additional measurements are required to achieve the target uncertainty in the result, this is recorded. The process relies on empirical observations and has the additional advantage of being blind to the actual network topology. This approach by its own nature automatically takes into account network changes whether known or unknown.
    • 所公开的方法使用位置查询的结果来调整属性的测量值以获得用于地理位置的统计上代表性的测量。 当位置请求到达时,使用与服务区域或位置相关联的当前测量值来确定要获得的测量数量; 所得到的不确定性与确定该值所需的测量数量相对应。 如果需要额外的测量来实现结果中的目标不确定性,则记录这一点。 该过程依赖于经验观察,并具有对实际网络拓扑失真的额外优点。 这种自己的性质自动考虑网络变化,无论是已知的还是未知的。
    • 9. 发明申请
    • SYSTEM AND METHOD FOR LOCATING A WIRELESS DEVICE IN A WIMAX NETWORK USING UPLINK SIGNALS
    • 使用上行信号在WIMAX网络中定位无线设备的系统和方法
    • US20120163222A1
    • 2012-06-28
    • US13388379
    • 2009-08-14
    • Tariqul IslamAnthony James Winterbottom
    • Tariqul IslamAnthony James Winterbottom
    • H04W24/00H04W72/04
    • H04W64/00G01S5/0205G01S5/12G01S5/14G01S13/767G01S2013/466
    • A system and method for estimating a location of a wireless device receiving signals from plural nodes of a Worldwide Interoperability for Microwave Access (“WiMAX”) communication system. Contention or non-contention based ranging may be allocated to the wireless device, and a first signal may be transmitted from at least one of the plural nodes to the wireless device. Tipping information may then be transmitted to one or more location measurement units, and a ranging signal transmitted from the wireless device in response to the first signal. Uplink signal time of arrival measurements of the ranging signal may be performed as a function of the tipping information, and a location of the wireless device estimated as a function of the determined uplink measurements. Downlink signal measurements of first signals received by the wireless device from the plural nodes may also be determined and a location of the wireless device determined from the uplink and/or downlink measurements.
    • 一种用于估计从全球微波接入互操作性(WiMAX)通信系统的多个节点接收信号的无线设备的位置的系统和方法。 可以向无线设备分配基于竞争或非竞争的测距,并且可以从多个节点中的至少一个节点向无线设备发送第一信号。 然后可以将小费信息发送到一个或多个位置测量单元,以及响应于第一信号从无线设备发送的测距信号。 作为测距信号的上行链路信号到达时间测量的时间可以作为倾覆信息的函数来执行,并且可以根据所确定的上行链路测量值估计无线设备的位置。 还可以确定无线设备从多个节点接收的第一信号的下行链路信号测量,并且从上行链路和/或下行链路测量确定无线设备的位置。