公开(公告)号：US09100780B2

公开(公告)日：2015-08-04

申请号：US13783015

申请日：2013-03-01

Applicant: QUALCOMM Incorporated

Inventor： Amir A. Emadzadeh ,  Sundar Raman

IPC: H04W24/00 ,  H04W4/02 ,  G01S5/02 ,  H04W64/00

CPC classification number: H04W4/02 ,  G01S5/0236 ,  H04W4/025 ,  H04W64/00

Abstract: Systems and methods for managing positioning assistance data for large regions are described herein. An example of a method for retrieving positioning assistance data at a mobile device as described herein includes identifying a master region in which the mobile device is located and sub-region definitions associated with the master region, where the sub-region definitions are indicative of area occupied by the sub-regions within the master region; obtaining a first estimated position of the mobile device within the master region; defining a projected area centered at the first estimated position; and obtaining first assistance data corresponding to at least one sub-region that overlaps the projected area.

Abstract translation: 这里描述了用于管理大区域的定位辅助数据的系统和方法。 用于在如本文所述的移动设备处检索定位辅助数据的方法的示例包括识别移动设备所在的主区域和与主区域相关联的子区域定义，其中子区域定义指示区域 由主区域内的分区域占用; 获得主区域内的移动设备的第一估计位置; 定义以第一估计位置为中心的预计区域; 以及获得对应于与投影区域重叠的至少一个子区域的第一辅助数据。

公开(公告)号：US20150172865A1

公开(公告)日：2015-06-18

申请号：US14132513

申请日：2013-12-18

Applicant: QUALCOMM Incorporated

Inventor： Amir Abbas EMADZADEH ,  Sai Pradeep Venkatraman ,  Sundar Raman

IPC: H04W4/02

CPC classification number: H04W4/023

Abstract: Methods, systems, computer-readable media, and apparatuses for obtaining a location fix for a mobile device are presented. In some embodiments, a method includes identifying a region in which the mobile device is located. The method further includes receiving assistance data pertaining to one or more access points within the region, wherein the assistance data is indicative of signal information pertaining to the one or more access points at multiple locations within the region. The method also includes generating, at the mobile device, a heatmap representative of multiple locations within the region as compared against the signal information pertaining to the one or more access points that are in communication range. The method additionally includes determining the location fix based at least in part on the generated heatmap.

Abstract translation: 提出了用于获得移动设备的定位的方法，系统，计算机可读介质和装置。 在一些实施例中，一种方法包括识别移动设备所在的区域。 所述方法还包括接收与所述区域内的一个或多个接入点有关的辅助数据，其中所述辅助数据指示与所述区域内的多个位置处的所述一个或多个接入点有关的信号信息。 该方法还包括在与移动设备处于通信范围中的与一个或多个接入点有关的信号信息相比较时，在移动设备处生成代表该区域内的多个位置的热图。 该方法还包括至少部分地基于生成的热图来确定位置锁定。