Receiving cell broadcast (CB) messages

• US 8,953,515 B2
• Filed: 06/24/2014
• Issued: 02/10/2015
• Est. Priority Date: 07/15/2011
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Dhanda, Mungal Singh, Robinson, Nigel Phillip, Gupta, Ajit, Walke, Simon, Janga, Bhanu Kiran, Kanthala, Venkata Raji Reddy, Mutya, Subbarayudu
• Primary Examiner(s): Faroul, Farah
• Application Number:
  US14/313,584
• Publication Number:
  US 20140307613A1
• Time in Patent Office: 231 Days
• Field of Search: 370/312, 370/331
• US Class Current: 370/312
• CPC Class Codes: H04W 36/08 Reselecting an access point
• 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 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method for receiving cell broadcast messages is described. The method includes communicating with a first cell. The method also includes switching to communicating with a second cell. A cell broadcast channel is read after switching cells. The method further includes switching from a dedicated mode to a packet idle mode. The cell broadcast channel is reread once after switching from a dedicated mode to a packet idle mode. Other aspects, embodiments and features are also claimed and described.

Claims

1. A method for receiving cell broadcast messages, comprising:

communicating with a first cell;

switching to communicating with a second cell;

reading a cell broadcast channel after switching cells;

switching from a dedicated mode to a packet idle mode; and

rereading the cell broadcast channel once after switching from a dedicated mode to a packet idle mode.

2. The method of claim 1, wherein the method is performed by a wireless communication device.

3. The method of claim 2, wherein the wireless communication device uses one or more subscriber identification module cards.

4. The method of claim 1, wherein cell broadcast scheduling message is not supported by the second cell.

5. The method of claim 1, wherein reading a cell broadcast channel comprises searching the cell broadcast channel for a cell broadcast message.

6. An apparatus for receiving cell broadcast messages, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, the instructions being executable by the processor to;

communicate with a first cell;

switch to communicating with a second cell;

read a cell broadcast channel after switching cells;

switch from a dedicated mode to a packet idle mode; and

reread the cell broadcast channel once after switching from a dedicated mode to a packet idle mode.

7. The apparatus of claim 6, wherein the apparatus is a wireless communication device.

8. The apparatus of claim 7, wherein the wireless communication device uses one or more subscriber identification module cards.

9. The apparatus of claim 6, wherein cell broadcast scheduling message is not supported by the second cell.

10. The apparatus of claim 6, wherein reading a cell broadcast channel comprises searching the cell broadcast channel for a cell broadcast message.

11. An apparatus configured for receiving cell broadcast messages, comprising:

means for communicating with a first cell;

means for switching to communicating with a second cell;

means for reading a cell broadcast channel after switching cells;

means for switching from a dedicated mode to a packet idle mode; and

means for rereading the cell broadcast channel once after switching from a dedicated mode to a packet idle mode.

12. A computer-program product for a receiving cell broadcast messages, the computer-program product comprising a non-transitory computer-readable medium having instructions thereon, the instructions comprising:

code for causing a wireless device to communicate with a first cell;

code for causing the wireless device to switch to communicating with a second cell;

code for causing the wireless device to read a cell broadcast channel after switching cells;

code for causing the wireless device to switch from a dedicated mode to a packet idle mode; and

code for causing the wireless device to reread the cell broadcast channel once after switching from a dedicated mode to a packet idle mode.