Apparatus and method of explicit indication of call from emergency call center
First Claim
1. A method of enabling location services in a mobile station, comprising:
- maintaining an emergency callback timer having an emergency callback period during which the mobile station operates in an emergency callback mode, the emergency callback timer being initiated in response to an emergency call originating from the mobile station;
location services being enabled on the mobile station during the emergency callback mode and disabled when the emergency callback 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.
6 Assignments
0 Petitions
Accused Products
Abstract
Herein are disclosed an apparatus and method of explicit indication of call from emergency call center. 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 center; 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 center; 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.
-
Citations
15 Claims
-
1. A method of enabling location services in a mobile station, comprising:
-
maintaining an emergency callback timer having an emergency callback period during which the mobile station operates in an emergency callback mode, the emergency callback timer being initiated in response to an emergency call originating from the mobile station; location services being enabled on the mobile station during the emergency callback mode and disabled when the emergency callback 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. A mobile station configured to communicate with an emergency call center, comprising:
-
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; 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 being further configured to enable location services for the mobile station if the mobile terminated emergency call occurs outside of the emergency callback period and the emergency continuity controller configured to disable location service when the emergency callback timer has expired, wherein the mobile terminated emergency call refers to an emergency call that is originated by the emergency call centre and is received by the mobile station. - View Dependent Claims (11, 12, 13, 14, 15)
-
Specification