Patent · US Active

Location based on call detail record

US9723441B2 · kind B2 · utility

2Cited by

9References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Wei Shan Dong · Beijing, CN
Ning Duan · Beijing, CN
Min Gong · Shanghai, CN
Yun Qiu · Shanghai, CN
Yu Wang · San Jose, US
Chao Xue · Beijing, CN
Junchi Yan · Shanghai, CN
Chao Zhang · Nanhu, CN
Wei Zhao · Beijing, CN

Key dates

Filing date	Oct 6, 2015
Grant date	Aug 1, 2017
Priority date	—
Expiry date	Jan 26, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04W36/00837
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Location based on call detail record. The method includes: acquiring handover call detail record (HCDR) data and handover (HO) data corresponding to at least one cell transfer during a call; The HCDR data can include a start time, an end time, passed cells during the call; The HO data can include the HO time for each pair of adjacent cells among the passed cells during the call. The method can further include estimating the location of the subscriber based on the HCDR data and the HO data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.