Signaling whether a network has broadcast system information

Patent metadata

Field	Value
Publication number	US-9591459-B2
Application number	US-201213440875-A
Country	US
Kind code	B2
Filing date	Apr 5, 2012
Priority date	Apr 8, 2011
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

Devices, systems, articles of manufacture, and methods for signaling a broadcast of a message are described. According to some embodiments, a first message to be broadcast in a cell is determined. The first message includes barring indications. A second message is generated. The second message is a System Information Type 3 message and includes an indication that the first message is to be broadcast. The second message is broadcast. Other aspects, embodiments, and features are also claimed and described.

First claim

We claim:

1. A method for signaling a broadcast of a message, the method comprising:
determining that a first message is to be broadcast in a cell, wherein the first message includes a list of authorized access classes and a subcategory of wireless communication devices targeted by barring indications;
generating a second message that is a System Information Type 3 message, the second message comprises an indication that the first message is to be broadcast, wherein the indication comprises a System Information Type 21 indicator when a WHERE field is not included in the System Information Type 3 message, and wherein the indication indicates a System Information Type 9 message has been broadcast when the WHERE field is included in the System Information Type 3 message; and
broadcasting the second message to general packet radio service (GPRS) and non-GPRS wireless communication devices.

2. The method of claim 1 , wherein the indication is in System Information Type 3 Rest Octets in the System Information Type 3 message.

3. The method of claim 2 , wherein the first message is a System Information Type 21 message.

4. The method of claim 3 , wherein the System Information Type 3 message does not comprise a WHERE field.

5. The method of claim 3 , wherein the System Information Type 3 message further comprises a System Information Type 21 position indicator.

6. The method of claim 5 , wherein the System Information Type 21 position indicator is set to BCCH Norm.

7. The method of claim 5 , wherein the System Information Type 21 position indicator is set to BCCH Extended.

8. The method of claim 1 , wherein the System Information Type 3 message comprises a WHERE field.

9. The method of claim 8 , further comprising:
generating a System Information Type 9 message; and
broadcasting the System Information Type 9 message.

10. The method of claim 9 , wherein the System Information Type 9 comprises an indication in System Information Type 9 Rest Octets that indicates that the first message is to be broadcast.

11. The method of claim 1 , wherein the method is performed by a base station.

12. The method of claim 1 , wherein the barring indications comprises Extended Access Barring information.

13. An apparatus for signaling a broadcast of a first message, comprising:
a processor;
memory in electronic communication with the processor;
instructions stored in the memory, the instructions being executable by the processor to:
determine that a first message is to be broadcast in a cell, wherein the first message includes a list of authorized access classes and a subcategory of wireless communication devices targeted by barring indications;
generate a second message that is a System Information Type 3 message, the second message comprises an indication that the first message is to be broadcast, wherein the indication comprises a System Information Type 21 indicator when a WHERE field is not included in the System Information Type 3 message, and wherein the indication indicates a System Information Type 9 message has been broadcast when the WHERE field is included in the System Information Type 3 message; and
broadcast the second message to general packet radio service (GPRS) and non-GPRS wireless communication devices.

14. The apparatus of claim 13 , wherein the indication is in System Information Type 3 Rest Octets in the System Information Type 3 message.

15. The apparatus of claim 14 , wherein the first message is a System Information Type 21 message.

16. The apparatus of claim 15 , wherein the System Information Type 3 message does not comprise a WHERE field.

17. The apparatus of claim 15 , wherein the System Information Type 3 message further comprises a System Information Type 21 position indicator.

18. The apparatus of claim 17 , wherein the System Information Type 21 position indicator is set to BCCH Norm.

19. The apparatus of claim 17 , wherein the System Information Type 21 position indicator is set to BCCH Extended.

20. The apparatus of claim 13 , wherein the instructions are further executable to:
generate a third message, wherein the third message indicates that the second message has been broadcast; and
broadcast the third message.

21. The apparatus of claim 20 , wherein the second message is a System Information Type 9 message, wherein the third message is a System Information Type 3 message, and wherein the System Information Type 3 message comprises a WHERE field.

22. The apparatus of claim 21 , wherein the indication is in System Information Type 9 Rest Octets in the System Information Type 9 message.

23. The apparatus of claim 13 , wherein the apparatus is a base station.

24. The apparatus of claim 13 , wherein the barring indications comprises Extended Access Barring information.

25. A method for detecting a broadcast of a first message, the method comprising:
receiving a second message that is a System Information Type 3 message at one or more of a general packet radio service (GPRS) and a non-GPRS wireless communication device, wherein the System Information Type 3 message comprises a System Information Type 21 indicator when a WHERE field is not included in the System Information Type 3 message, and wherein the System Information Type 3 message indicates a System Information Type 9 message has been broadcast when the WHERE field is included in the System Information Type 3 message;
decoding the second message; and
using the second message to determine whether a first message has been broadcast, wherein the first message includes a list of authorized access classes and a subcategory of wireless communication devices targeted by barring indications.

26. The method of claim 25 , wherein the first message is a System Information Type 21 message.

27. The method of claim 26 , wherein using the second message to determine whether a System Information Type 21 message has been broadcast comprises:
determining that the second message comprises a WHERE field;
decoding all fields from System Information Type 3 Rest Octets in the System Information Type 3 message; and
determining whether the System Information Type 3 Rest Octets comprise a System Information Type 21 message indicator.

28. The method of claim 27 , wherein the System Information Type 3 Rest Octets does not comprise a System Information Type 21 message indicator, and wherein using the second message to determine whether a System Information Type 21 message has been broadcast further comprises determining that a System Information Type 21 message is not broadcast in a cell.

29. The method of claim 27 , wherein the System Information Type 3 Rest Octets comprise a System Information Type 21 message indicator, and wherein using the second message to determine whether a System Information Type 21 message has been broadcast further comprises determining that a System Information Type 21 message is broadcast in a cell.

30. The method of claim 29 , wherein the System Information Type 3 message further comprises a System Information Type 21 position indicator.

31. The method of claim 30 , wherein the System Information Type 21 position indicator is set to BCCH Norm.

32. The method of claim 30 , wherein the System Information Type 21 position indicator is set to BCCH Extended.

33. The method of

Assignees

• Dhanda Mungal Singh
• Jain Vikrant
• Qualcomm Inc

Inventors

• Dhanda Mungal Singh
• Jain Vikrant

Classifications

• H04W48/08

  Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) · CPC title

• H04W4/16

  Communication-related supplementary services, e.g. call-transfer or call-hold · CPC title

• H04W48/12 Primary

  using downlink control channel · CPC title

• H04W4/06 Primary

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04W48/02

  Access restriction performed under specific conditions · CPC title