Method for signaling based on paging channel loading

• US 20050009534A1
• Filed: 07/08/2003
• Published: 01/13/2005
• Est. Priority Date: 07/08/2003
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Harris, John M., Crocker, Ronald T., Kelley, Sean S.
• Granted Patent: US 6,980,818 B2
• Time in Patent Office: Days
• US Class Current: 455/453
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Abstract

The need to reduce the cost associated with signaling mobiles (120) across multiple cells (101-108) is addressed by embodiments of the present invention. A targeted MS is initially paged only in those cells in which the paging channel loading level is below a particular paging threshold. Similarly for short messaging, the RAN transmits the short messaging to the MS only in those cells in which the paging channel loading level is below a short messaging threshold. Therefore, the MS can be signaled in under-loaded cells first, were the effect on system capacity and performance is negligible. When successful, the MS signaling is achieved at a lower cost to the system than when loaded cells are involved.

Claims

1. A method for signaling based on paging channel loading comprising:

determining that an MS needs to be paged;

determining a paging channel loading level for each of a plurality of cells in which the MS may be located;

paging the MS only in those cells of the plurality of cells in which the paging channel loading level is below a paging threshold.

2. The method of claim 1, wherein the plurality of cells comprises cells in a paging zone of the MS.

3. The method of claim 1, further comprising when a page response is received from the MS in a cell, sending short messaging to the MS in the cell.

4. The method of claim 3, wherein short messaging comprises messaging from the group consisting of data burst messaging (DBM), short message service (SMS) messaging, short data burst (SDB) messaging, a data packet, and notification messaging.

5. The method of claim 3, wherein sending short messaging to the MS in the cell comprises sending the short messaging without at least one optional field of the short messaging when the paging channel loading level of the cell is above an overloaded threshold.

6. The method of claim 1, further comprising when a page response is received from the MS in a cell, sending channel assignment messaging to the MS in the cell to assign a traffic channel to the MS.

7. The method of claim 6, further comprising sending short messaging to the MS via the traffic channel.

8. The method of claim 1, further comprising paging the MS only in those cells of the plurality of cells in which the paging channel loading level is below a paging threshold after determining that the service triggering the page is delay tolerant.

9. The method of claim 8, wherein determining that the service triggering the page is delay tolerant comprises determining that the service is a voice call and the MS has a slot cycle index less than two.

10. The method of claim 1, further comprising when no page response is received from the MS after paging in only those cells of the plurality of cells in which the paging channel loading level is below a paging threshold, paging the MS in at least one of those cells of the plurality of cells in which the paging channel loading level is above the paging threshold.

11. The method of claim 1, further comprising when no page response is received from the MS after paging in only those cells of the plurality of cells in which the paging channel loading level is below a paging threshold, paging the MS in those cells of the plurality of cells in which the paging channel loading level is above the paging threshold.

12. A method for signaling based on paging channel loading comprising:

determining that short messaging needs to be sent to an MS;

determining a paging channel loading level for each of a plurality of cells in which the MS may be located;

transmitting the short messaging to the MS only in those cells of the plurality of cells in which the paging channel loading level is below a short messaging threshold.

13. The method of claim 12, wherein short messaging comprises messaging from the group consisting of data burst messaging (DBM), short message service (SMS) messaging, short data burst (SDB) messaging, a data packet, and notification messaging.

14. The method of claim 13, wherein notification messaging comprises messaging from the group consisting of email notification messaging, voice mail notification messaging, and presence notification messaging.

15. The method of claim 12, further comprising when no short messaging response is received from the MS after transmitting the short messaging to the MS only in those cells of the plurality of cells in which the paging channel loading level is below a short messaging threshold, transmitting the short messaging to the MS in at least one of those cells of the plurality of cells in which the paging channel loading level is above the short messaging threshold.

16. The method of claim 12, further comprising paging the MS only in those cells of the plurality of cells in which the paging channel loading level is above the short messaging threshold and below a paging threshold.

17. The method of claim 16, further comprising when a page response is received from the MS in a cell, sending the short messaging to the MS in the cell.

18. The method of claim 17, wherein the sending short messaging to the MS in the cell comprises sending the short messaging without at least one optional field of the short messaging when the paging channel loading level of the cell is above an overloaded threshold.

19. The method of claim 16, further comprising when a page response is received from the MS in a cell, sending channel assignment messaging to the MS in the cell to assign a traffic channel to the MS.

20. The method of claim 19, further comprising sending the short messaging to the MS via the traffic channel.

21. The method of claim 16, further comprising when no page response and no short messaging response are received from the MS, signaling the MS in at least one of those cells of the plurality of cells in which the paging channel loading level is above the paging threshold.

22. The method of claim 21, wherein signaling the MS comprises paging the MS.

23. The method of claim 21, wherein signaling the MS comprises transmitting the short messaging.

24. A radio access network (RAN) comprising:

wireless transceiver equipment adapted to support signaling transmission and reception for each cell of a plurality of cells;

a communications controller, communicatively coupled to the wireless transceiver equipment for each cell of the plurality of cells,

adapted to determine that an MS needs to be paged,

adapted to determine a paging channel loading level for each of the plurality of cells in which the MS may be located,

adapted to page the MS via the wireless transceiver equipment for only those cells of the plurality of cells in which the paging channel loading level is below a paging threshold.

25. The RAN of claim 24, wherein the communications controller is further adapted, when a page response is received from the MS in a cell, to send short messaging to the MS via the wireless transceiver equipment in the cell.

26. The RAN of claim 24, wherein the communications controller is further adapted, when a page response is received from the MS in a cell, to send channel assignment messaging to the MS via the wireless transceiver equipment in the cell, to assign a traffic channel to the MS.

27. The RAN of claim 26, wherein the communications controller is further adapted to send short messaging to the MS via the wireless transceiver equipment and the traffic channel.

28. The RAN of claim 24, wherein the communications controller is further adapted, when no page response is received from the MS after paging in only in those cells of the plurality of cells in which the paging channel loading level is below a paging threshold, to page the MS via the wireless transceiver equipment in at least one of those cells of the plurality of cells in which the paging channel loading level is above the paging threshold.

29. A radio access network (RAN) comprising:

wireless transceiver equipment adapted to support signaling transmission and reception for each cell of a plurality of cells;

a communications controller, communicatively coupled to the wireless transceiver equipment for each cell of the plurality of cells,

adapted to determine that short messaging needs to be sent to an MS,

adapted to determine a paging channel loading level for each of the plurality of cells in which the MS may be located,

adapted to transmit the short messaging to the MS via the wireless transceiver equipment for only those cells of the plurality of cells in which the paging channel loading level is below a short messaging threshold.

30. The RAN of claim 29, wherein the communications controller is further adapted, when no short messaging response is received from the MS after transmitting the short messaging to the MS only in those cells of the plurality of cells in which the paging channel loading level is below a short messaging threshold, to transmit the short messaging to the MS via the wireless transceiver equipment in at least one of those cells of the plurality of cells in which the paging channel loading level is above the short messaging threshold.

31. The RAN of claim 29, wherein the communications controller is further adapted to page the MS via the wireless transceiver equipment only in those cells of the plurality of cells in which the paging channel loading level is above the short messaging threshold and below a paging threshold.

32. The RAN of claim 31, wherein the communications controller is further adapted, when a page response is received from the MS in a cell, to send the short messaging to the MS via the wireless transceiver equipment in the cell.

33. The RAN of claim 31, wherein the communications controller is further adapted, when a page response is received from the MS in a cell, to send channel assignment messaging to the MS via the wireless transceiver equipment in the cell, to assign a traffic channel to the MS.

34. The RAN of claim 33, wherein the communications controller is further adapted to send the short messaging to the MS via the wireless transceiver equipment and the traffic channel.

35. The RAN of claim 31, wherein the communications controller is further adapted, when no page response and no short messaging response are received from the MS, to send the MS via the wireless transceiver equipment in at least one of those cells of the plurality of cells in which the paging channel loading level is above the paging threshold.