Method for reducing power consumption in bluetooth and CDMA modes of operation
First Claim
1. A method for synchronizing a wakeup schedule for a BLUETOOTH module and a wakeup schedule for a CDMA module in a wireless mobile unit, said method comprising:
- determining a current CDMA time; and
determining a current BLUETOOTH time determining a next CDMA wakeup time;
determining a CDMA interval, said CDMA interval equaling said next CDMA wakeup time minus said current CDMA time;
synchronizing a new BLUETOOTH wakeup time to said next CDMA wakeup time when said current BLUETOOTH time plus said CDMA interval is less than said next BLUETOOTH time.
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Abstract
Method for reducing power consumption in Bluetooth and CDMA modes of operation is disclosed. According to a disclosed embodiment, the time for a next scheduled CDMA wakeup process to be performed by a CDMA module is established. Thereafter, if the next CDMA wakeup process is scheduled to be performed before the next Bluetooth wakeup process, a Bluetooth wakeup process is synchronized to be performed by a Bluetooth module at the same time as the next CDMA wakeup process. Following, when the time arrives for the CDMA module to perform the next CDMA wakeup process, the Bluetooth module also performs the Bluetooth wakeup process.
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Citations
7 Claims
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1. A method for synchronizing a wakeup schedule for a BLUETOOTH module and a wakeup schedule for a CDMA module in a wireless mobile unit, said method comprising:
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determining a current CDMA time; and
determining a current BLUETOOTH time determining a next CDMA wakeup time;
determining a CDMA interval, said CDMA interval equaling said next CDMA wakeup time minus said current CDMA time;
synchronizing a new BLUETOOTH wakeup time to said next CDMA wakeup time when said current BLUETOOTH time plus said CDMA interval is less than said next BLUETOOTH time.
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2. A method for synchronizing a wakeup schedule for a BLUETOOTH module and a wakeup schedule for a CDMA module in a wireless mobile unit, said method comprising:
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determining a current CDMA time and a current BLUETOOTH time;
calculating a CDMA interval, said CDMA interval equaling a next CDMA wakeup time less said current CDMA time; and
substantially synchronizing a new BLUETOOTH wakeup time to said next CDMA wakeup time when said current BLUETOOTH time plus said CDMA interval is less than a next BLUETOOTH time. - View Dependent Claims (3, 4, 5, 6)
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7. A wireless mobile unit, comprising:
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a CDMA module comprising a CDMA transmitter/receiver and a CDMA antenna, said CDMA transmitter/receiver and said CDMA antenna being configured to receive a pilot signal, said CDMA module configured to;
perform a CDMA wakeup process at a next CDMA wakeup time, derive a current CDMA time from said pilot signal;
a BLUETOOTH module comprising a clock configured to track a current BLUETOOTH time, and a processor configured to;
calculate a CDMA interval equaling said next CDMA wakeup time minus said current CDMA time, substantially synchronize a new BLUETOOTH wakeup time to a next CDMA wakeup time when said current BLUETOOTH time plus said CDMA interval is less than a next BLUETOOTH time.
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Specification