公开(公告)号：US20140269638A1

公开(公告)日：2014-09-18

申请号：US14288971

申请日：2014-05-28

Applicant: QUALCOMM INCORPORATED

Inventor： Peter John Black ,  Matthew Stuart Grob

IPC: H04W64/00 ,  H04W72/04

CPC classification number: H04W72/0446 ,  G01S5/0221 ,  H04W48/08 ,  H04W48/14 ,  H04W64/00

Abstract: Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.

Abstract translation: 本文公开的实施例涉及用于在无线通信系统中提供改进的位置定位（例如到达时间）测量和增强的位置定位的方法和系统。 在一个实施例中，接入点可以在对已知的传输（或“参考传输”）在对应扇区中的接入终端已知的预定时间内替换信息（例如，数据）传输。 接入终端可以使用接收到的参考传输来执行位置测量，并且返回所测量的信息。 接入点还可以例如响应于需要基于位置的服务的接入终端的请求，按需发送参考传输。