公开(公告)号：US20140112375A1

公开(公告)日：2014-04-24

申请号：US13656398

申请日：2012-10-19

Applicant: QUALCOMM INCORPORATED

Inventor： Per ENGE ,  Lionel Jacques Garin

IPC: H04L27/28

CPC classification number: G01S5/14 ,  G01S11/08 ,  G01S13/876 ,  G01S13/878 ,  H04L27/2663 ,  H04L27/2672

Abstract: Systems, apparatus and methods for determining a set of ranges from selected subcarriers of an OFDM signal sent between a receiver (e.g., first transceiver or a local receiver of a local unit at a first location) and a transmitter (e.g., second transceiver or remote transmitter of a remote unit at a second location) are presented. The set of ranges is ambiguous as to the correct range. Each range in this set of ambiguous ranges represents a possible range between the transmitter and the receiver. Range ambiguities may be resolved by using additional subcarriers from the OFDM signal and/or using a last know position of a receiver and/or finding ranges to two, three or more transmitters. The range may be used with other ranges to find a location estimate of the receiver.

Abstract translation: 用于确定在接收器（例如，第一收发器或第一位置的本地单元的本地接收器）之间发送的OFDM信号的选定子载波的集合范围的系统，装置和方法以及发射机（例如，第二收发器或远程 呈现远程单元在第二位置的发射机）。 范围的集合对于正确的范围是不明确的。 该组模糊范围内的每个范围表示发射机和接收机之间的可能范围。 可以通过使用来自OFDM信号的附加子载波和/或使用接收机的最后知道位置和/或找到两个，三个或更多个发射机的范围来解决范围模糊。 该范围可以与其他范围一起使用以找到接收机的位置估计。