Apparatus and method of explicit indication of call from emergency call centre
First Claim
1. A method of explicitly indicating that a mobile station terminated call is from an emergency call centre, the method comprising the steps of:
- maintaining an emergency callback period during which the mobile station operates in callback mode;
initiating the emergency callback timer in response to an emergency call originating from the mobile station;
enabling location services on the mobile station during the emergency callback mode;
disabling location services when the emergency callbcak timer has expired;
receiving a mobile terminated emergency call after the emergency callback timer has expired; and
in response to receiving the mobile terminated emergency call, enabling location services.
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Accused Products
Abstract
Herein are disclosed an apparatus and method of explicit indication of call from emergency call centre. The method includes the steps of forming an emergency signal in relation to the mobile station terminated call; sending the emergency signal to the mobile station on behalf of the emergency call centre; and detecting the emergency signal at the mobile station. The apparatus includes emergency signal forming means for forming an emergency signal in relation to the mobile station terminated call; emergency signal sending means for sending said emergency signal to the mobile station on behalf of the emergency call centre; and emergency signal detecting means for detecting said emergency signal at the mobile station. A global emergency call information record is disclosed for use in cdma2000 type networks and the like. The apparatus and method may apply to other networks.
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Citations
25 Claims
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1. A method of explicitly indicating that a mobile station terminated call is from an emergency call centre, the method comprising the steps of:
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maintaining an emergency callback period during which the mobile station operates in callback mode;
initiating the emergency callback timer in response to an emergency call originating from the mobile station;
enabling location services on the mobile station during the emergency callback mode;
disabling location services when the emergency callbcak timer has expired;
receiving a mobile terminated emergency call after the emergency callback timer has expired; and
in response to receiving the mobile terminated emergency call, enabling location services. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A mobile station, comprising:
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an emergency callback timer configured to measure an emergency callback period during which the mobile station operates in an emergency callback mode, the emergency callback period being initiated when an emergency call is originated from the mobile station, the mobile station configured to communicate with an emergency call center;
an emergency continuity controller configured to determine if a mobile terminated emergency call is received outside of the emergency callback period;
the emergency continuity controller configured to disable location service when the emergency callback timer has expired. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification