The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 2015

Filed:

Feb. 21, 2014
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, Guangdong, CN;

Inventors:

Jinbo Huang, Shanghai, CN;

Jakob Singvall, Kista, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 11/04 (2006.01); H04W 4/22 (2009.01); H04W 88/06 (2009.01); H04M 3/51 (2006.01); H04W 76/00 (2009.01);
U.S. Cl.
CPC ...
H04W 4/22 (2013.01); H04M 3/5116 (2013.01); H04W 76/007 (2013.01); H04W 88/06 (2013.01); H04M 2242/04 (2013.01);
Abstract

The present invention relates to a method in a communication device for establishment of an emergency call, the communication device configured to communicate within communication networks by communication modems; the method comprising the steps of: sending an Emergency Call Establishment Request (ECER) to modems (M, M, . . . , M) of the communication device upon receiving an emergency call initiation signal; receiving at least one ECER feedback signal from each modem, the ECER feedback signal indicating at least one of a latency and a signal quality for a communication link associated with each modem; and selecting one modem Mamong the modems (M, M, . . . , M) for an emergency call based on the ECER feedback signals from the modems (M, M, . . . , M). Furthermore, the invention also relates to a corresponding communication device, a computer program, and a computer program product thereof.


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