Patent · US Active

Volte device preference for E911

US9148772B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Cellco Partnership · US

Inventors

Siva Sandeep Dhandu · Princeton, US
Ephrem Chemaly · Lake in the Hills, US

Key dates

Filing date	Dec 19, 2013
Grant date	Sep 29, 2015
Priority date	—
Expiry date	Feb 7, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A mobile device has several ways to determine position, some of which rely on interaction with the network. Once mobile device establishes a call, the call may remain on the network access technology and band over which the call was established, even if the call requires services not supported by the network access technology and/or band. So, when a call requires a position determination (e.g. emergency call), the mobile device selects a network access technology and band which will potentially improve the probability and accuracy of position determination, even if interaction with the network is not required because other position determination techniques (e.g. GPS) may be available.

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