EMERGENCY BROADCAST MESSAGE SUPPORT IN WIRELESS COMMUNICATION NETWORKS

• US 20080194224A1
• Filed: 02/12/2007
• Published: 08/14/2008
• Est. Priority Date: 02/12/2007
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Alberth, William P., Thorson, Dean E.
• Application Number:
  US11/673,920
• Publication Number:
  US 20080194224A1
• Time in Patent Office: Days
• US Class Current: 455/404.1
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

A wireless communication network infrastructure entity (110) transmits a message, for example, a system parameters message, on a common signaling channel for reception by wireless terminals (102) in the network. The network entity also transmits an emergency broadcast message, for example, an SMS data burst overhead message transmitted on a paging channel. An emergency broadcast message information field of the message transmitted on the common signaling channel indicates the availability of the emergency broadcast message.

Claims

1. A method in a wireless communication station having a radio receiver and a user interface, the method comprising:

receiving a message on a common signaling channel,

the message including an emergency broadcast message information field indicating the availability of an emergency broadcast message;

receiving the emergency broadcast message if the emergency broadcast message information field indicates that the emergency broadcast message is available.

2. The method of claim 1, communicating content of a received emergency broadcast message at the user interface.

3. The method of claim 1,

the emergency broadcast message information field indicating whether the emergency broadcast message is available on a paging channel,

receiving the emergency broadcast message on the paging channel when the emergency broadcast message information field indicates that the emergency broadcast message is available on the paging channel.

4. The method of claim 1, receiving the emergency broadcast message as an SMS data burst message.

5. The method of claim 1,

the emergency broadcast message information field indicating whether the emergency broadcast message is available on a paging channel;

receiving the emergency broadcast message on the paging channel when the emergency broadcast message information field indicates that the emergency broadcast message is available on the paging channel,

the emergency broadcast message pointing to a location where additional emergency broadcast information may be obtained.

6. The method of claim 1,

receiving the message on the common signaling channel includes receiving a system parameters message on a paging channel,

the emergency broadcast message information field is an emergency broadcast message bit in the system parameters message.

7. The method of claim 6,

the emergency broadcast message is an emergency broadcast overhead message,

a state of the emergency broadcast message bit indicating whether the emergency broadcast overhead message is available on the paging channel,

receiving the emergency broadcast overhead message on the paging channel when the state of the emergency broadcast message bit satisfies a condition.

8. The method of claim 7, receiving the emergency broadcast message as an SMS data burst message.

9. The method of claim 6,

a state of the emergency broadcast message bit indicating whether the emergency broadcast message is available on the paging channel,

receiving the emergency broadcast message on the paging channel when the state of the emergency broadcast message bit satisfies a condition,

the emergency broadcast message pointing to another location where additional emergency broadcast information may be obtained.

10. The method of claim 1,

receiving the message on the common signaling channel includes receiving an extended system parameters message on a paging channel,

the emergency broadcast message information field is an emergency broadcast message bit in the extended system parameters message.

11. The method of claim 10,

the emergency broadcast message is an emergency broadcast overhead message,

a state of the emergency broadcast message bit indicating whether the emergency broadcast overhead message is available on the paging channel,

receiving the emergency broadcast overhead message on the paging channel when the state of the emergency broadcast message bit satisfies a condition.

12. The method of claim 11, receiving the emergency broadcast message as an SMS data burst message.

13. An IS-2000 wireless communication mobile station, comprising:

a radio receiver;

a processor communicably coupled to the radio receiver;

the receiver receiving a system parameters message on a common signaling channel, the system parameters message including an emergency broadcast message information field,

the processor determining whether an emergency broadcast message is available based on a state of the emergency broadcast message information field,

the receiver receiving an emergency broadcast message if the emergency broadcast message information field satisfies the condition.

14. A method in a wireless communication base station entity, the method comprising:

transmitting a message on a common signaling channel;

transmitting an emergency broadcast message;

indicating, in an emergency broadcast message information field of the message transmitted on the common signaling channel, the availability of the emergency broadcast message.

15. The method of claim 14,

transmitting the message on the common signaling channel includes transmitting a system parameters message on a paging channel,

the emergency broadcast message information field is an emergency broadcast message bit in the system parameters message.

16. The method of claim 15,

the emergency broadcast message is an emergency broadcast overhead message,

transmitting the emergency broadcast overhead message on the paging channel,

indicating that the emergency broadcast overhead message is available on the paging channel using the emergency broadcast message bit.

17. The method of claim 16, transmitting the emergency broadcast overhead message as an SMS data burst message on the paging channel.

18. The method of claim 15,

transmitting the emergency broadcast message on the paging channel,

indicating that the emergency broadcast message is available on the paging channel using the emergency broadcast message bit,

the emergency broadcast message pointing to another location where additional emergency broadcast information may be obtained.

19. The method of claim 14,

transmitting the message on the common signaling channel includes transmitting an extended system parameters message,

the emergency broadcast message information field is an emergency broadcast message bit in the extended system parameters message.

20. The method of claim 19,

the emergency broadcast message is an emergency broadcast overhead message,

transmitting the emergency broadcast overhead message on a paging channel,

indicating that the emergency broadcast overhead message is available on the paging channel using the emergency broadcast message bit.