Invention Grant
US08233911B2 Method and apparatus for estimating a position of a node in a communications network
失效
用于估计通信网络中的节点的位置的方法和装置
- Patent Title: Method and apparatus for estimating a position of a node in a communications network
- Patent Title (中): 用于估计通信网络中的节点的位置的方法和装置
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Application No.: US12639988Application Date: 2009-12-16
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Publication No.: US08233911B2Publication Date: 2012-07-31
- Inventor: Gilles Charbit , Alberto Escolar-Piedras
- Applicant: Gilles Charbit , Alberto Escolar-Piedras
- Applicant Address: FI Espoo
- Assignee: Nokia Corporation
- Current Assignee: Nokia Corporation
- Current Assignee Address: FI Espoo
- Agency: Squire Sanders (US) LLP
- Main IPC: H04W24/00
- IPC: H04W24/00

Abstract:
A method and apparatus are provided for timed estimation-based positioning of a user equipment in LTE systems. The method includes estimating, by a mobile node, a plurality of reference signal time differences (RSTD) between the mobile node and a network node. The plurality of RSTD estimates define a first correlator. The method further includes determining a second correlator of RSTD estimates, and defining the second correlator with the first correlator based on a mean of the plurality of RSTD estimates. Further, the method includes determining a distribution of the plurality of RSTD estimates, and grouping clusters of RSTD estimates in the distribution. Additionally, the method includes selecting a cluster from the clusters of RSTD estimates. The cluster includes RSTD estimates closest to a center of the second correlator. The cluster is transmitted, by the mobile node, to the network node for positioning the mobile node in a communications network.
Public/Granted literature
- US20110143770A1 METHOD AND APPARATUS FOR ESTIMATING A POSITION OF A NODE IN A COMMUNICATIONS NETWORK Public/Granted day:2011-06-16
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