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31. 发明授权

US09739888B2 Method, system and device for position determination with predicted ephemeris 有权
公开(公告)号：US09739888B2
公开(公告)日：2017-08-22
申请号：US14469679
申请日：2014-08-27
申请人： Marvell World Trade Ltd.
发明人： Jian Cheng , Zhike Jia , Zhicui Lu , Jian Chen
IPC分类号： G01S19/27 , G01S19/25
CPC分类号： G01S19/27 , G01S19/258
摘要： Method, system, and device are provided for position determination with the use of predicted ephemeris to reduce the time-to-first-fix. The method includes: in a device, receiving broadcast orbit data and clock states from a plurality of satellites to determine first assistance data for the plurality of satellites, and numerically predicting first ephemeris for the plurality of satellites using the first assistance data. The method also includes: in a server system, receiving precise orbit data and accurate satellite clock states from a global GNSS service network to determine second assistance data; in a device, receiving the second assistance data and numerically predicting second ephemeris using the second assistance data. The method further includes: in a device, receiving satellite signals from a plurality of satellites, checking the period of validity of the first predicted ephemeris and the second predicted ephemeris respectively to select a predicted ephemeris from both the first predicted ephemeris and the second predicted ephemeris.

32. 发明授权

US09521568B2 Wireless LAN device positioning 有权
标题翻译：无线局域网设备定位
公开(公告)号：US09521568B2
公开(公告)日：2016-12-13
申请号：US14536926
申请日：2014-11-10
申请人： Marvell World Trade Ltd.
发明人： BoChih Liu , Zhike Jia , Jing Yu , Jian Chen , Yuan Ren
IPC分类号： H04J1/16 , H04W24/08 , H04W64/00 , G01S5/02 , H04W84/12
CPC分类号： H04W24/08 , G01S5/0252 , H04W64/00 , H04W84/12
摘要： A system and method to determine a location of a device in a wireless local area network (LAN) based on positioning assistance data acquired from a server is disclosed. The host-offload wireless LAN device may determine a location based on the location computations done inside the wireless LAN module. The device includes a storage medium configured to provide a database of positioning assistance data, a wireless LAN module configured to receive beacon signals broadcast from one or more access points, and a processor configured to store the access point identification information and the signal strength detected by the wireless LAN module in a first memory section, access the previously-stored positioning assistance data from the storage medium, assemble positioning assistance data based on a comparison, store the assembled positioning assistance data in a second memory section, and determine a location of wireless LAN device using assembled positioning assistance data.
摘要翻译：公开了一种基于从服务器获取的定位辅助数据来确定无线局域网（LAN）中的设备的位置的系统和方法。主机卸载无线LAN设备可以基于在无线LAN模块内完成的位置计算来确定位置。该设备包括被配置为提供定位辅助数据的数据库的存储介质，被配置为接收从一个或多个接入点广播的信标信号的无线LAN模块，以及被配置为存储接入点识别信息和由第一存储器部分中的无线LAN模块，从存储介质访问先前存储的定位辅助数据，基于比较来组装定位辅助数据，将组装的定位辅助数据存储在第二存储器部分中，并且确定无线的位置 LAN设备使用组装的定位辅助数据。

33. 发明申请

US20160282469A1 METHOD AND APPARATUS FOR UPDATING AND PROVIDING SATELLITE NAVIGATION MESSAGE 审中-公开
标题翻译：更新和提供卫星导航信息的方法和装置
公开(公告)号：US20160282469A1
公开(公告)日：2016-09-29
申请号：US15073150
申请日：2016-03-17
申请人： Marvell World Trade Ltd.
发明人： BoChih LIU , Zhike Jia , Jian Chen , Zhicui Lu , Juhong Xing , Feng Xu
IPC分类号： G01S19/03
CPC分类号： G01S19/05
摘要： Aspects of the disclosure include a method for sharing satellite navigation messages. The method includes receiving a download report from a receiver. The download report indicates what portions of a satellite navigation message are currently stored by the receiver. The method also includes determining whether to update a satellite navigation message database associated with a server based on the portions of the satellite navigation message stored by the receiver. In response to determining that the satellite navigation message database should be updated, the method further includes requesting the receiver to transmit a subset of the satellite navigation message currently stored by the receiver to the server; receiving the subset of the satellite navigation message; and updating the satellite navigation message database associated with the server based on the received subset of the satellite navigation message.
摘要翻译：本公开的方面包括用于共享卫星导航消息的方法。该方法包括从接收器接收下载报告。下载报告指示接收机当前存储卫星导航消息的哪些部分。该方法还包括基于由接收机存储的卫星导航消息的部分来确定是否更新与服务器相关联的卫星导航消息数据库。响应于确定卫星导航消息数据库应被更新，该方法还包括请求接收机将当前由接收机存储的卫星导航消息的子集发送到服务器; 接收卫星导航消息的子集; 以及基于所接收的所述卫星导航消息的子集来更新与所述服务器相关联的所述卫星导航消息数据库。

34. 发明申请

US20160119758A1 Positioning Database Management Applied to Server-based Positioning System 审中-公开
公开(公告)号：US20160119758A1
公开(公告)日：2016-04-28
申请号：US14989327
申请日：2016-01-06
申请人： Marvell World Trade Ltd.
发明人： BoChih Liu , Zhike Jia , Yuan Ren , Jing Yu , Jian Chen
IPC分类号： H04W4/02 , H04W64/00
CPC分类号： H04W4/028 , H04W4/02 , H04W4/029 , H04W64/006
摘要： Systems and methods are provided for positioning determination for mobile devices. A system includes: a database configured to store positioning data associated with one or more base stations in a network, and a data management component configured to compare the parameters with one or more parameter thresholds, and update the positioning data based at least in part on the comparison of the parameters and the parameter thresholds. The updated positioning data is used for positioning determination of a mobile device.

35. 发明申请

US20150139007A1 Wireless LAN Device Positioning 有权
标题翻译：无线局域网设备定位
公开(公告)号：US20150139007A1
公开(公告)日：2015-05-21
申请号：US14536926
申请日：2014-11-10
申请人： Marvell World Trade Ltd.
发明人： BoChih Liu , Zhike Jia , Jing Yu , Jian Chen , Yuan Ren
IPC分类号： H04W64/00 , H04W24/08
CPC分类号： H04W24/08 , G01S5/0252 , H04W64/00 , H04W84/12
摘要： A system and method to determine a location of a device in a wireless local area network (LAN) based on positioning assistance data acquired from a server is disclosed. The host-offload wireless LAN device may determine a location based on the location computations done inside the wireless LAN module. The device includes a storage medium configured to provide a database of positioning assistance data, a wireless LAN module configured to receive beacon signals broadcast from one or more access points, and a processor configured to store the access point identification information and the signal strength detected by the wireless LAN module in a first memory section, access the previously-stored positioning assistance data from the storage medium, assemble positioning assistance data based on a comparison, store the assembled positioning assistance data in a second memory section, and determine a location of wireless LAN device using assembled positioning assistance data.
摘要翻译：公开了一种基于从服务器获取的定位辅助数据来确定无线局域网（LAN）中的设备的位置的系统和方法。主机卸载无线LAN设备可以基于在无线LAN模块内完成的位置计算来确定位置。该设备包括被配置为提供定位辅助数据的数据库的存储介质，被配置为接收从一个或多个接入点广播的信标信号的无线LAN模块，以及被配置为存储接入点识别信息和由第一存储器部分中的无线LAN模块，从存储介质访问先前存储的定位辅助数据，基于比较来组装定位辅助数据，将组装的定位辅助数据存储在第二存储器部分中，并且确定无线的位置 LAN设备使用组装的定位辅助数据。

36. 发明申请

US20150050948A1 POSITIONING DATA DISTRIBUTION APPLIED TO SERVER-BASED POSITIONING SYSTEM 有权
标题翻译：定位数据分布适用于基于服务器的定位系统
公开(公告)号：US20150050948A1
公开(公告)日：2015-02-19
申请号：US14453263
申请日：2014-08-06
申请人： MARVELL WORLD TRADE LTD.
发明人： BoChih LIU , Zhike Jia , Jing Yu , Yuan Ren , Jian Chen
IPC分类号： H04W64/00
CPC分类号： H04W64/00
摘要： Aspects of the disclosure provide a method for positioning data management. The method includes checking a reset condition that is used to trigger a reset of boundaries of signal strength values for clustering a group of positioning data associated with a wireless station into subsets. Each positioning data associates position information of a location with an identifier of the wireless station for providing wireless connection at the location and a strength of a signal received at the location. Further, the method includes updating, when the reset condition is satisfied, one or more boundaries to re-allocate the group of positioning data in order to increase a population uniformity across the subsets, and storing the updated boundaries.
摘要翻译：本公开的方面提供了一种用于定位数据管理的方法。该方法包括检查用于触发用于将与无线站相关联的一组定位数据聚类成子集的信号强度值的边界的复位的复位条件。每个定位数据将位置的位置信息与无线站的标识符相关联，用于在该位置提供无线连接以及在该位置处接收到的信号的强度。此外，该方法包括当满足复位条件时更新重新分配定位数据组的一个或多个边界，以便增加子集之间的总体均匀性，并存储更新的边界。

37. 发明申请

US20130314277A1 System and Method for Determining GPS Receiver Position 有权
标题翻译：确定GPS接收机位置的系统和方法
公开(公告)号：US20130314277A1
公开(公告)日：2013-11-28
申请号：US13900126
申请日：2013-05-22
申请人： Marvell World Trade Ltd.
发明人： Jian Cheng , Zhi Wang , Mohan Chen , Zhike Jia
IPC分类号： G01S19/43
CPC分类号： G01S19/43 , G01S19/42
摘要： Systems and methods for determining a position of a global positioning system (GPS) receiver are provided. A first satellite and a second satellite that have an unobstructed communication path to the GPS receiver are identified. For each of the first and second satellites, data received is used to determine a satellite position and a code phase for a transmitted satellite signal. A relative code phase is calculated between the transmitted satellite signals of the first satellite and the second satellite, where the relative code phase is a difference between the determined code phases. The position of the GPS receiver is determined based on the satellite positions of the first and second satellite and the relative code phase.
摘要翻译：提供了用于确定全球定位系统（GPS）接收机的位置的系统和方法。识别出具有通向GPS接收机的无障碍通信路径的第一卫星和第二卫星。对于第一和第二卫星中的每一个，所接收的数据用于确定用于所发射的卫星信号的卫星位置和码相位。在第一卫星和第二卫星的发射的卫星信号之间计算相对编码相位，其中相对编码相位是所确定的码相位之间的差。 GPS接收机的位置是基于第一和第二卫星的卫星位置和相对码相位来确定的。

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