APPARATUS OF A USER EQUIPMENT ADAPTED FOR RECEIVING EMERGENCY NOTIFICATION INFORMATION USED IN MOBILE COMMUNICATION AND METHOD FOR RECEIVING EMERGENCY NOTIFICATION INFORMATION

• US 20180007525A1
• Filed: 05/30/2017
• Published: 01/04/2018
• Est. Priority Date: 07/01/2016
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Subramanian, Kumaran, Vamanan, Sudeep Manithara
• Granted Patent: US 10,924,907 B2
• Time in Patent Office: Days
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 20/59 for emergency or urgency
• CPC Class Codes: H04H 20/72 of terrestrial networks
• 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 48/16 Discovering, processing access restriction or access information

Abstract

A communication device is provided comprising a receiver configured to detect whether it can receive emergency notification information of a radio cell and, if it cannot receive the emergency notification information of the radio cell, search for another radio cell based on the possibility to receive emergency notification information of the other radio cell. Further, the communication device comprises a controller configured to, if the receiver has found another radio cell based on the possibility to receive emergency notification information of the other radio cell, initiate a reselection of the other radio cell.

Claims

1. An apparatus of a user equipment (UE) adapted for receiving emergency notification information used in mobile communication, the apparatus comprising:

a receiver configured

to receive the emergency notification information from a first radio cell; and

if the receiver does not receive the emergency notification information from the first radio cell, search for a second radio cell to determine whether the receiver receives the emergency notification information from the second radio cell; and

a controller configured to initiate a selection of the second radio cell based on the determination of reception of the emergency notification information from the second radio cell.

2. The apparatus of claim 1, wherein the receiver is configured to perform a radio cell selection and the first radio cell is a radio cell selected by the receiver.

3. The apparatus of claim 1, wherein the user equipment is camping on the first radio cell.

4. The apparatus of claim 1, wherein the emergency notification information is information broadcast in the first radio cell.

5. The apparatus of claim 1, wherein the emergency notification information is information broadcast by a base station operating the first radio cell.

6. The apparatus of claim 1, wherein the emergency notification information is information broadcast in one or more system information blocks in the first radio cell.

7. The apparatus of claim 1, wherein the receiver is configured to detect whether it receives emergency notification information of the first radio cell based on whether it can receive scheduling information for the emergency notification information.

8. The apparatus of claim 7, wherein the scheduling information is information broadcast in one or more system information blocks in the first radio cell.

9. The apparatus of claim 1, wherein the emergency notification information comprises Public Warning System information.

10. The apparatus of claim 1, wherein the emergency notification information comprises Earthquake and Tsunami Warning System information.

11. The apparatus of claim 1, wherein the receiver is configured to search for the second radio cell by trying to receive emergency notification information of the second radio cell.

12. The apparatus of claim 1, wherein the receiver is configured to search for the second radio cell irrespective of whether the first radio cell fulfills a predetermined measurement criterion.

13. The apparatus of claim 1, wherein the receiver is configured to detect whether it receives emergency notification information of the first radio cell based on whether it was unable to receive emergency notification information of the first radio cell for a predetermined period.

14. The apparatus of claim 1, wherein the receiver is configured to search for the second radio cell among a set of neighboring radio cells of the first radio cell.

15. The apparatus of claim 14, wherein the receiver is configured to determine a reception quality for each neighboring cell of the set of neighboring radio cells and search for the second radio cell based on the reception qualities.

16. The apparatus of claim 1, wherein the controller is further configured to bar the first radio cell if the receiver has found the second radio cell based on the possibility to receive emergency notification information of the second radio cell.

17. A method for receiving emergency notification information comprising

receiving the emergency notification information from a first radio cell;

if the emergency notification information from the first radio cell is not received, searching for a second radio cell to determine whether the emergency notification information from the second radio cell is received; and

initiating a selection of the second radio cell based on the determination of reception of the emergency notification information from the second radio cell.

18. The method of claim 17, comprising performing a radio cell selection and the first radio cell being a radio cell selected.

19. The method of claim 17, comprising camping on the first radio cell.

20. The method of claim 17, wherein the emergency notification information is information broadcast in the first radio cell.