Method and device for receiving emergency event alert
First Claim
1. A method for receiving an emergency event alert, comprising:
- discovering, by a receiving unit, an emergency event alert service;
attaching, by the receiving unit, to the emergency event alert service; and
receiving, by the receiving unit, an emergency event alert message sent by a distributing unit;
wherein if multicast address information for the distributing unit to send the emergency event alert is obtained by the receiving unit, attaching to the emergency event alert service comprises;
sending, by the receiving unit to the distributing unit, a request message for joining a corresponding multicast group; and
joining the corresponding multicast group to complete attachment of the emergency event alert service.
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Accused Products
Abstract
A method, a device, and a system for receiving an emergency event alert are provided, which relate to a field of communication applications. As long as communication between a user terminal and a bearer network is normal, no matter whether the user terminal is watching live television programs, the user terminal can receive the emergency event alert in time. The method is as follows. A receiving unit discovers an emergency event alert service. The receiving unit is attached to the emergency event alert service. The receiving unit receives an emergency event alert message sent by a distributing unit. An emergency event alert receiving unit device includes a discovering and processing module, a service attachment processing module, and a message reception processing module. Through attachment to the emergency event alert service, the user terminal can receive the emergency event alert in time.
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Citations
16 Claims
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1. A method for receiving an emergency event alert, comprising:
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discovering, by a receiving unit, an emergency event alert service; attaching, by the receiving unit, to the emergency event alert service; and receiving, by the receiving unit, an emergency event alert message sent by a distributing unit; wherein if multicast address information for the distributing unit to send the emergency event alert is obtained by the receiving unit, attaching to the emergency event alert service comprises;
sending, by the receiving unit to the distributing unit, a request message for joining a corresponding multicast group; and
joining the corresponding multicast group to complete attachment of the emergency event alert service. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An emergency event alert receiving unit device, comprising:
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a discovering and processing module, configured to discover an emergency event alert service; a service attachment processing module, configured to attach to the emergency event alert service after the emergency event alert service discovering is completed; and a message reception processing module, configured to receive an emergency event alert message and obtain an emergency event alert indication from the emergency event alert message wherein if multicast address information for the distributing unit to send the emergency event alert is obtained by the receiving unit, the receiving unit attaches to the emergency event alert service by;
sending, by the receiving unit, to the distributing unit a request message for joining a corresponding multicast group, and joining the corresponding multicast group to complete attachment of the emergency event alert service. - View Dependent Claims (11, 12)
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13. An emergency-call session control function (E-CSCF) device, comprising:
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an emergency channel joining identification module, configured to identify that an emergency event alert session establishment request is an emergency channel joining request message by identifying that an Internet protocol television (IPTV) channel identity carried in the emergency event alert session establishment request is an emergency channel identity, or by identifying an emergency indication message carried in the session establishment request; and an emergency channel joining processing module, configured to request a policy enforcement entity of a bearer layer to reserve a bearer resource after the emergency channel joining request message is identified, and contain a priority of the bearer resource to be reserved according to the identified IPTV channel identity or the emergency indication. - View Dependent Claims (14)
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15. A method for receiving an emergency event alert, comprising:
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discovering, by a receiving unit, an emergency event alert service; attaching, by the receiving unit, to the emergency event alert service; and receiving, by the receiving unit, an emergency event alert message sent by a distributing unit; wherein if indirect database server address information of the distributing unit is obtained by the receiving unit, attaching to the emergency event alert service comprises;
sending, by the receiving unit, a query message to the server to obtain a multicast address for the distributing unit to send the emergency event alert message, sending a request message for joining the corresponding multicast group to the distributing unit, and joining the corresponding multicast group to complete attachment of the emergency event alert service.
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16. An emergency event alert receiving unit device, comprising:
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a discovering and processing module, configured to discover an emergency event alert service; a service attachment processing module, configured to attach to the emergency event alert service after the emergency event alert service discovering is completed; and a message reception processing module, configured to receive an emergency event alert message and obtain an emergency event alert indication from the emergency event alert message; wherein if indirect database server address information of the distributing unit is obtained by the receiving unit, the receiving unit attaches to the emergency event alert service by;
sending, by the receiving unit, a query message to the server to obtain a multicast address for the distributing unit to send the emergency event alert message, sending a request message for joining the corresponding multicast group to the distributing unit, and joining the corresponding multicast group to complete attachment of the emergency event alert service.
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Specification