Locating call measurement data

Patent metadata

Field	Value
Publication number	US-2016188631-A1
Application number	US-201414586656-A
Country	US
Kind code	A1
Filing date	Dec 30, 2014
Priority date	Dec 30, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

A server includes a time-series generator to receive a sequence of unlabeled data records for a first user equipment. The unlabeled data records include values of measurements performed by the first user equipment on signals received from at least one base station. The server also includes a localization engine to estimate locations of the unlabeled data records based on the values of the measurements, a labeled dataset representing a channel model of a geographic area, and a map representative of the geographic area.

First claim

What is claimed is:

1 . A method comprising:
receiving, at a server, a sequence of unlabeled data records for a first user equipment, the unlabeled data records including values of measurements performed by the first user equipment on signals received from at least one base station; and estimating, at the server, locations of the unlabeled data records based on the values of the measurements, a labeled dataset representing a channel model of a geographic area, and a map representative of the geographic area.

2 . The method of claim 1 , further comprising:
updating the channel model based on the values of the measurements and the locations of the unlabeled data records; and storing the updated channel model in a first database.

3 . The method of claim 2 , wherein estimating the locations of the unlabeled data records comprises iteratively estimating the locations of the unlabeled data records based on the updated channel model and updating the channel model based on updated locations of the unlabeled data records until a convergence criterion is satisfied.

4 . The method of claim 1 , further comprising:
generating labeled data records based on the locations and the unlabeled data records; and storing the labeled data records in a second database.

5 . The method of claim 4 , further comprising:
providing the labeled data records to an application in response to a request from the application.

6 . The method of claim 1 , wherein receiving the sequence of unlabeled data records for the first user equipment comprises receiving a series of unlabeled data records for the first user equipment and at least one second user equipment, and generating the sequence of unlabeled data records for the first user equipment from the series of unlabeled data records.

7 . The method of claim 1 , wherein receiving the sequence of unlabeled data records including the values of the measurements performed by the first user equipment comprises receiving a sequence of unlabeled data records that include values of at least one of a reference signal received power, a reference signal received quality, and a timing advance measured by the first user equipment.

8 . The method of claim 1 , wherein estimating the locations of the sequence of unlabeled data records comprises associating likelihoods with a plurality of particles representative of a corresponding plurality of sets of locations of the unlabeled data records based on a mobility model of the first user equipment and the map representative of the geographic area.

9 . The method of claim 8 , wherein estimating the locations of the sequence of unlabeled data records comprises iteratively selecting subsets of the plurality of particles based on the likelihoods until one of the plurality of particles is selected to represent the locations.

10 . An apparatus comprising:
a time-series generator to receive a sequence of unlabeled data records for a first user equipment, the unlabeled data records including values of measurements performed by the first user equipment on signals received from at least one base station; and a localization engine to estimate locations of the unlabeled data records based on the values of the measurements, a labeled dataset representing a channel model of a geographic area, and a map representative of the geographic area.

11 . The apparatus of claim 10 , further comprising:
a channel model engine to update the channel model based on the values of the measurements and the locations of the unlabeled data records; and a first database to store the updated channel model.

12 . The apparatus of claim 11 , wherein the localization engine and the channel model engine iteratively estimate the locations of the unlabeled data records based on the updated channel model and update the channel model based on updated locations of the unlabeled data records until a convergence criterion is satisfied.

13 . The apparatus of claim 10 , wherein the localization engine generates labeled data records based on the locations and the unlabeled data records, the apparatus further comprising:
a second database to store the labeled data records.

14 . The apparatus of claim 13 , further comprising:
a server to access the labeled data records from the second database and provide the labeled data records to an application in response to a request from the application.

15 . The apparatus of claim 10 , wherein the time-series generator receives a series of unlabeled data records for the first user equipment and at least one second user equipment, and wherein the time-series generator generates the sequence of unlabeled data records for the first user equipment from the series of unlabeled data records.

16 . The apparatus of claim 10 , wherein the time-series generator receives a sequence of unlabeled data records that include values of at least one of a reference signal received power, a reference signal received quality, and a timing advance measured by the first user equipment.

17 . The apparatus of claim 10 , wherein the localization engine associates likelihoods with a plurality of particles representative of a corresponding plurality of sets of locations of the unlabeled data records based on a mobility model of the first user equipment and the map representative of the geographic area.

18 . The apparatus of claim 17 , wherein the localization engine iteratively selects subsets of the plurality of particles based on the likelihoods until one of the plurality of particles is selected to represent the locations.

19 . A non-transitory computer readable medium embodying a set of executable instructions, the set of executable instructions to manipulate at least one processor to:
receive a sequence of unlabeled data records for a first user equipment, the unlabeled data records including values of measurements performed by the first user equipment on signals received from at least one base station; and estimate locations of the unlabeled data records based on the values of the measurements, a labeled dataset representing a channel model of a geographic area, and a map representative of the geographic area.

20 . The non-transitory computer readable medium of claim 19 , wherein the set of executable instructions manipulate the at least one processor to iteratively estimate the locations of the unlabeled data records based on the channel model and update the channel model based on updated locations of the unlabeled data records until a convergence criterion is satisfied.

Assignees

• Alcatel Lucent Usa Inc

Inventors

• Deb Supratim
• Ray Avik

Classifications

• G06F17/30371

  Physics · mapped topic

• G06F17/30241 Primary

  Physics · mapped topic

• H04W4/023

  using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds · CPC title

• H04M15/41

  Billing record details, i.e. parameters, identifiers, structure of call data record [CDR] · CPC title

• H04W4/028

  Electricity · mapped topic