Devices and methods for facilitating overhead message updates in wireless communications systems

• US 9,036,496 B2
• Filed: 01/04/2013
• Issued: 05/19/2015
• Est. Priority Date: 01/09/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Patwardhan, Ravindra Manohar, Attar, Rashid Ahmed Akbar
• Primary Examiner(s): WILSON, ROBERT W
• Application Number:
  US13/734,187
• Publication Number:
  US 20130176942A1
• Time in Patent Office: 865 Days
• US Class Current: 370/252
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 52/0254 detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Access terminals are adapted to facilitate reception of overhead messages. According to one example, an access terminal can determine whether it is at least substantially stationary. The access terminal may receive one or more sequence numbers corresponding to a subsequent overhead message. In response to being at least substantially stationary, the access terminal can ignore the subsequent overhead message when the corresponding sequence numbers are the same as stored sequence numbers corresponding to a previously obtained overhead message, even when the previously obtained overhead message is more than six hundred seconds old. According to another example, a network node may transmit an overhead message including a corresponding sector indicator and sequence numbers. When the sector indicator and the sequence numbers are the same as a previously received and stored sector indicator and sequence numbers, the access terminal can ignore the overhead message. Other aspects, embodiments, and features are also included.

Claims

1. An access terminal, comprising:

a communications interface;

a non-transitory storage medium comprising a sector indicator corresponding to a preceding overhead message, and at least one sequence number corresponding to the preceding overhead message; and

a processing circuit coupled to the communications interface and the storage medium, the processing circuit configured to;

receive, via the communications interface, a subsequent sector indicator and at least one subsequent sequence number, each corresponding to a subsequent overhead message, wherein the subsequent sector indicator comprises a value for at least one reserved bit in a general page message including the subsequent overhead message;

determine whether a value of the subsequent sector indicator is the same as the value of the sector indicator stored in the storage medium;

determine whether the at least one subsequent sequence number is the same as the at least one sequence number stored in the storage medium; and

ignore the subsequent overhead message when the subsequent sector indicator is the same as the sector indicator stored in the storage medium, and when the at least one subsequent sequence number is the same as the at least one sequence number stored in the storage medium.

2. The access terminal of claim 1, wherein the processing circuit is further configured to:

obtain the subsequent overhead message when the subsequent sector indicator is different from the sector indicator stored in the non-transitory storage medium.

3. The access terminal of claim 1, wherein the processing circuit is further configured to:

obtain the subsequent overhead message when the at least one subsequent sequence number is different from the at least one sequence number stored in the non-transitory storage medium.

4. A method of processing a general page message, the method comprising:

receiving a general page message including a subsequent sector indicator as a value for at least one reserved bit of the general page message;

obtaining the subsequent sector indicator and at least one subsequent sequence number from the general page message, each corresponding to a subsequent overhead message;

determining whether the subsequent sector indicator is the same as a stored sector indicator;

determining whether the at least one subsequent sequence number is the same as at least one stored sequence number; and

ignoring the subsequent overhead message when the subsequent sector indicator is the same as the stored sector indicator, and when the at least one subsequent sequence number is the same as the at least one stored sequence number.

5. The method of claim 4, further comprising:

prior to obtaining the subsequent sector indicator and the at least one subsequent sequence number, receiving a preceding overhead message comprising the stored sector indicator and the at least one stored sequence number; and

storing the stored sector indicator and the at least one stored sequence number.

6. The method of claim 4, wherein the general page message comprises the subsequent overhead message.

7. The method of claim 4, wherein determining whether the subsequent sector indicator is the same as the stored sector indicator comprises:

determining whether the value for the at least one reserved bit corresponding to the subsequent overhead message is the same as a stored value of at least one reserved bit corresponding to a preceding overhead message.

8. The method of claim 4, further comprising:

receiving the subsequent overhead message when the subsequent sector indicator is different from the stored sector indicator.

9. The method of claim 4, further comprising:

receiving the subsequent overhead message when the at least one subsequent sequence number is different from the at least one stored sequence number.

10. An access terminal, comprising:

means for receiving a general page message including a subsequent sector indicator as a value for at least one reserved bit of the general page message;

means for obtaining the subsequent sector indicator and at least one subsequent sequence number from the general page message, each corresponding to a subsequent overhead message;

means for determining whether the subsequent sector indicator is the same as a stored sector indicator;

means for determining whether the at least one subsequent sequence number is the same as at least one stored sequence number; and

means for ignoring the subsequent overhead message when the subsequent sector indicator is the same as the stored sector indicator, and when the at least one subsequent sequence number is the same as the at least one stored sequence number.

11. The access terminal of claim 10, wherein:

the subsequent sector indicator comprises a value for at least one reserved bit corresponding to the subsequent overhead message; and

the stored sector indicator comprises a value for at least one reserved bit corresponding to a preceding overhead message.

12. The access terminal of claim 10, further comprising:

means for receiving the subsequent overhead message when the subsequent sector indicator is different from the stored sector indicator.

13. The access terminal of claim 10, further comprising:

means for receiving the subsequent overhead message when the at least one subsequent sequence number is different from the at least one stored sequence number.

14. A non-transitory computer-readable storage medium storing instructions that when executed by a computer perform the following:

receive a general page message including a subsequent sector indicator as a value for at least one reserved bit of the general page message;

obtain the subsequent sector indicator and at least one subsequent sequence number from the general page message, each corresponding to a subsequent overhead message;

determine whether the subsequent sector indicator is the same as a stored sector indicator;

determine whether the at least one subsequent sequence number is the same as at least one stored sequence number; and

ignore the subsequent overhead message when the subsequent sector indicator is the same as the stored sector indicator, and when the at least one subsequent sequence number is the same as the at least one stored sequence number.

15. The non-transitory computer-readable storage medium of claim 14, wherein:

the subsequent sector indicator comprises a value for at least one reserved bit corresponding to the subsequent overhead message; and

the stored sector indicator comprises a value for at least one reserved bit corresponding to a preceding overhead message.

16. The non-transitory computer-readable storage medium of claim 14, further comprising programming for causing a computer to:

receive the subsequent overhead message when the subsequent sector indicator is different from the stored sector indicator.

17. The non-transitory computer-readable storage medium of claim 14, further comprising programming for causing a computer to:

receive the subsequent overhead message when the at least one subsequent sequence number is different from the at least one sequence number stored in the storage medium.

18. A network node, comprising:

a communications interface;

a non-transitory storage medium comprising general page message operations; and

a processing circuit coupled to the communications interface and the non-transitory storage medium, the processing circuit configured to perform the general page message operations comprising;

generate a general page message including a sector indicator configured to distinguish the general page message from messages associated with another sector, wherein the sector indicator comprises a value for at least one unassigned reserved bit in the general page message; and

transmit the general page message via the communications interface.

19. The network node of claim 18, wherein the value of the sector indicator is configured to distinguish the general page message from messages associated with another sector.

20. The network node of claim 18, wherein the general page message includes an overhead message comprising one or more corresponding sequence numbers.

21. The network node of claim 18, wherein the processing circuit is configured to perform the general page message operations comprising:

transmit the general page message on a pilot, wherein the pilot is the same pilot employed by the other sector.

22. The network node of claim 21, wherein the processing circuit is configured to perform the general page message operations comprising:

determine that the other sector employs the same pilot before the general page message is generated.

23. A method of processing a general page message at a network node, comprising:

generating a general page message comprising a sector indicator configured to distinguish the general page message from messages associated with another sector, wherein the sector indicator comprises a value for at least one unassigned reserved bit in the general page message; and

transmitting the general page message.

24. The method of claim 23, wherein the value of the sector indicator distinguishes the general page message from messages associated with another sector.

25. The method of claim 23, wherein the general page message comprises an overhead message with one or more corresponding sequence numbers.

26. The method of claim 23, wherein transmitting the general page message comprises:

transmitting the general page message on a pilot, wherein the pilot is the same pilot employed by the other sector.

27. The method of claim 26, further comprising:

determining that the other sector employs the same pilot prior to generating the general page message.

28. A network node, comprising:

means for generating a general page message comprising a sector indicator configured to distinguish the general page message from messages associated with another sector, wherein the sector indicator comprises a value for at least one unassigned reserved bit in the general page message; and

means for transmitting the general page message.

29. The network node of claim 28, wherein the value of the sector indicator is configured to distinguish the general page message from messages associated with another sector.

30. The network node of claim 28, wherein the general page message comprises an overhead message comprising one or more corresponding sequence numbers.