Method for determining whether to wake up a mobile station

• US 6,889,067 B2
• Filed: 08/23/2001
• Issued: 05/03/2005
• Est. Priority Date: 12/04/1998
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Willey, W. Daniel
• Primary Examiner(s): Corsaro, Nick
• Assistant Examiner(s): Lee, John J
• Application Number:
  US09/938,323
• Publication Number:
  US 20020025811A1
• Time in Patent Office: 1,349 Days
• Field of Search: 455/574, 455/412.2, 455/40, 455/434, 455/572, 455/515, 455/442, 455/436, 455/437, 455/553.1, 455/420, 455/343.2, 455/343.3, 455/343.5, 455/517, 455/458, 455/419, 455/69, 455/522, 340/7.32, 340/7.33
• US Class Current: 455/574
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 68/025 Indirect paging
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention provides a method for determining whether to wake up a mobile station. The mobile station includes first configuration parameters relating to a base station. The method includes the steps of receiving a configuration change indicator at the mobile station. The configuration change indicator is indicative that the first configuration parameters relating to the base station are different than second configuration parameters that currently relate to the base station. The method further includes waking up the mobile station to receive the second configuration parameters.

Claims

1. A method for updating configuration parameters at a mobile station, the method comprising the steps of:

storing, at the mobile station, first configuration parameters from a first base station;

performing an idle handoff of the mobile station from the first base station to a second base station, the second base station having second configuration parameters associated therewith;

updating configuration parameters at the mobile station from the first configuration parameters to the second configuration parameters;

performing an idle handoff of the mobile station from the second base station to the first base station; and

receiving at least one configuration change indicator to indicate whether current configuration parameters associated with the first base station are different from the first configuration parameters.

2. A method for updating configuration parameters at a mobile station in accordance with claim 1, the method further comprising the step of receiving the current configuration parameters.

3. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein the second configuration parameters are distinct from the first configuration parameters.

4. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein the mobile station determines, after the idle handoff, if configuration information has changed without waking up for a paging channel slot.

5. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein when a mobile station performs an idle handoff, the mobile station receives at least one configuration change indicator bit for the new base station if a timer associated with the new base station has not expired.

6. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein, when a timer for the new base station has expired when the mobile determines that it needs to perform an idle handoff to the new base station, the mobile station does not wake up to receive at least one configuration change indicator bit.

7. A method for updating configuration parameters at a mobile station in accordance with claim 6, wherein the mobile station does not wake up when there is no BCCH and only a PCH.

8. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein the mobile station performs the idle handoff to the base station associated with the new pilot.

9. A method for updating configuration parameters at a mobile station in accordance with claim 8, further comprising the step of determining, at the mobile station, whether its configuration parameter value timer has expired for the new base station.

10. A method for updating configuration parameters at a mobile station in accordance with claim 9, wherein, if the configuration parameter value timer has expired for the new base station, the mobile station wakes up and receives the updated configuration parameters.

11. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein the mobile station does not receive the configuration change indicator.

12. A method for updating configuration parameters at a mobile station in accordance with claim 1 wherein, before performing an idle handoff to a base station whose paging channel was recently monitored, a mobile station operating in the slotted mode monitors one or more configuration change indicators on the assigned Quick Paging Channel for the new base station if the mobile station supports the Quick Paging Channel.

13. A method for updating configuration parameters at a mobile station in accordance with claim 12, wherein the new base station supports Quick Paging Channel.

14. A method for updating configuration parameters at a mobile station in accordance with claim 12, wherein the mobile station is not monitoring the Paging Channel.

15. A method for updating configuration parameters at a mobile station in accordance with claim 12, wherein no more than about 600 seconds have elapsed since the mobile station last received a valid message on the new Paging Channel.

16. A method for updating configuration parameters at a mobile station in accordance with claim 1, wherein, while performing an idle handoff, if the mobile station supports the Quick Paging Channel operation and the mobile station determines that the QPCH configuration indicator for the new QPCH is set to “

OFF” and

if no more than about 600 seconds have elapsed since the mobile station last received a valid message on the new Paging Channel, the mobile station does not begin operating in the non-slotted mode after the idle handoff.