Invention Grant
- Patent Title: Methods and systems for handover of an emergency call between different wireless networks
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Application No.: US15621789Application Date: 2017-06-13
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Publication No.: US10567943B2Publication Date: 2020-02-18
- Inventor: Stephen William Edge
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Narria M. Zohn
- Main IPC: H04W4/90
- IPC: H04W4/90 ; H04W36/00 ; H04W36/22 ; H04M11/04 ; H04W76/50 ; H04W40/24 ; H04W84/12 ; H04W36/14

Abstract:
A method is provided to enable handoff of an emergency services call between different network operators. A UE may establish a first call with a first network for a first network operator based on a first wireless access type, where the first call is an emergency services call to a PSAP. The UE may then determine impaired wireless coverage for the first wireless access type and unimpaired wireless coverage for a second wireless access type for a second network, where the second network is for a second network operator different to the first network operator. The UE may then establish a second call with the second network based on the second wireless access type, where the second call is a continuation of the first call to the PSAP. In embodiments, the first wireless access type is WiFi and the second wireless access type is cellular.
Public/Granted literature
- US20170366955A1 METHODS AND SYSTEMS FOR HANDOVER OF AN EMERGENCY CALL BETWEEN DIFFERENT WIRELESS NETWORKS Public/Granted day:2017-12-21
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