Methods and systems for idle operation in multi-mode mobile stations

• US 8,611,933 B2
• Filed: 02/11/2009
• Issued: 12/17/2013
• Est. Priority Date: 02/11/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Chin, Tom, Shi, Guangming Carl, Lee, Kuo-Chun
• Primary Examiner(s): Afshar, Kamran
• Assistant Examiner(s): Obayanju, Omoniyi
• Application Number:
  US12/369,719
• Publication Number:
  US 20100202429A1
• Time in Patent Office: 1,770 Days
• Field of Search: 455/458, 455/515
• US Class Current: 455/458
• CPC Class Codes: H04W 68/12 Inter-network notification
• 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

Certain embodiments of the present disclosure provide techniques for a multi-mode mobile station to establish paging intervals in different radio access technology (RAT) networks that do not collide.

Claims

1. A method for communicating, by a multi-mode mobile station (MS), with first and second networks via first and second radio access technologies (RATs), comprising:

determining, at the MS, a first set of one or more paging parameters, the first set of one or more paging parameters comprising a paging cycle parameter and a paging offset parameter from a set of paging offset parameters for which a paging interval of the first network does not conflict with a paging interval of the second network;

communicating the first set of paging parameters from the MS to a base station of the first network in a deregistration request to establish the paging interval of the first network, the deregistration request including a period of the paging cycle parameter, the paging offset parameter, and a bit indicating whether the period of the paging cycle parameter and the paging offset parameter are mandatory; and

tuning a radio frequency (RF) chain of the MS to decode paging signals in the paging interval from the base station of the first network.

2. The method of claim 1, wherein determining the first set of one or more paging parameters comprises:

determining a timing difference offset between frames of the first and second networks;

determining a paging cycle and a paging offset of the second network;

determining a paging cycle of the first network based, at least in part, on the paging cycle of the second network; and

determining a paging offset of the first network based, at least in part, on the timing difference offset between frames of the first and second networks and the paging offset of the second network.

3. The method of claim 2, wherein the paging cycle of the first network is an integer multiple of the paging cycle of the second network.

4. The method of claim 1, wherein determining the first set of one or more paging parameters:

determining a WiMAX paging cycle and a WiMAX paging offset based on parameters of a code division multiple access (CDMA) paging cycle.

5. The method of claim 1, wherein determining the first set of one or more paging parameters:

selecting a control channel cycle of for a code division multiple access (CDMA) paging cycle based on one or more parameters of a WiMAX paging cycle.

19. The computer-program product of claim 1, wherein the instructions for determining the first set of one or more paging parameters comprises:

instructions for determining a WiMAX paging cycle and a WiMAX paging offset based on parameters of a code division multiple access (CDMA) paging cycle.

20. The computer-program product of claim 1, wherein the instructions for determining the first set of one or more paging parameters comprises:

instructions for selecting a control channel cycle of for a code division multiple access (CDMA) paging cycle based on one or more parameters of a WiMAX paging cycle.

6. An apparatus for communicating, by a multi-mode mobile station (MS), with first and second networks via first and second radio access technologies (RATs), comprising:

at least one processor configured to;

determine, at the MS, a first set of one or more paging parameters, the first set of one or more paging parameters comprising a paging cycle parameter and a paging offset parameter from a set of paging offset parameters for which a paging interval of the first network does not conflict with a paging interval of the second network;

communicate the first set of paging parameters from the MS to a base station of the first network in a deregistration request to establish the paging interval of the first network, the deregistration request including a period of the paging cycle parameter, the paging offset parameter, and a bit indicating whether the period of the paging cycle parameter and the paging offset parameter are mandatory; and

tune a radio frequency (RF) chain of the MS to decode paging signals in the paging interval from the base station of the first network; and

a memory coupled to the at least one processor.

7. The apparatus of claim 6, wherein the at least one

processor determines the first set of one or more paging parameters at least in part by:

determining a timing difference offset between frames of the first and second networks;

determining a paging cycle and a paging offset of the second network;

determining a paging cycle of the first network based, at least in part, on the paging cycle of the second network; and

determining a paging offset of the first network based, at least in part, on the timing difference offset between frames of the first and second networks and the paging offset of the second network.

8. The apparatus of claim 7, wherein the paging cycle of the first network is an integer multiple of the paging cycle of the second network.

9. The apparatus of claim 6, wherein the first set of one or more paging parameters comprise a WiMAX paging cycle and a WiMAX paging offset, and wherein the paging interval of the second network comprises a code division multiple access (CDMA) paging cycle.

10. The apparatus of claim 6, wherein the at least one processor determines the first set of one or more paging parameters at least in part by:

selecting a control channel cycle of for a code division multiple access (CDMA) paging cycle based on one or more parameters of a WiMAX paging cycle.

11. An apparatus for communicating, by a multi-mode mobile station (MS), with first and second networks via first and second radio access technologies (RATs), comprising:

means for determining, at the MS, a first set of one or more paging, the first set of one or more paging parameters comprising a paging cycle parameter and a paging offset parameter from a set of paging offset parameters for which a paging interval of the first network does not conflict with a paging interval of the second network;

means for communicating the first set of paging parameters from the MS to a base station of the first network in a deregistration request to establish the paging interval of the first network, the deregistration request including a period of the paging cycle parameter, the paging offset parameter, and a bit indicating whether the period of the paging cycle parameter and the paging offset parameter are mandatory; and

means for tuning a radio frequency (RF) chain of the MS to decode paging signals in the paging interval from the base station of the first network.

12. The apparatus of claim 11, wherein the means for determining the first set of one or more paging parameters comprises:

means for determining a timing difference offset between frames of the first and second networks;

means for determining a paging cycle and a paging offset of the second network;

means for determining a paging cycle of the first network based, at least in part, on the paging cycle of the second network; and

means for determining a paging offset of the first network based, at least in part, on the timing difference offset between frames of the first and second networks and the paging offset of the second network.

13. The apparatus of claim 12, wherein the paging cycle of the first network is an integer multiple of the paging cycle of the second network.

14. The apparatus of claim 11, wherein the means for determining the first set of one or more paging parameters comprises:

means for determining a WiMAX paging cycle and a WiMAX paging offset based on parameters of a code division multiple access (CDMA) paging cycle.

15. The apparatus of claim 11, wherein the means for determining the first set of one or more paging parameters comprises:

means for selecting a control channel cycle of for a code division multiple access (CDMA) paging cycle based on one or more parameters of a WiMAX paging cycle.

16. A computer-program product for communicating, by a multi-mode mobile station (MS), with first and second networks via first and second radio access technologies (RATs), comprising a non-transitory computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:

instructions for determining, at the MS, a first set of one or more paging parameters, the first set of one or more paging parameters comprising a paging cycle parameter and a paging offset parameter from a set of paging offset parameters for which a paging interval of the first network does not conflict with a paging interval of the second network;

instructions for communicating the first set of paging parameters from the MS to a base station of the first network in a deregistration request to establish the paging interval of the first network, the deregistration request including a period of the paging cycle parameter, the paging offset parameter, and a bit indicating whether the period of the paging cycle parameter and the paging offset parameter are mandatory; and

instructions for tuning a radio frequency (RF) chain of the MS to decode paging signals in the paging interval from the base station of the first network.

17. The computer-program product of claim 16, wherein the instructions for determining the first set of one or more paging parameters comprises:

instructions for determining a timing difference offset between frames of the first and second networks;

instructions for determining a paging cycle and a paging offset of the second network;

instructions for determining a paging cycle of the first network based, at least in part, on the paging cycle of the second network; and

instructions for determining a paging offset of the first network based, at least in part, on the timing difference offset between frames of the first and second networks and the paging offset of the second network.

18. The computer-program product of claim 17, wherein the paging cycle of the first network is an integer multiple of the paging cycle of the second network.