Adjusting transmit power in a wireless communication system
AssigneeQUALCOMM Incorporated
InventorAndrew Sendonaris
Life of this patent
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Abstract
A method and apparatus are provided for determining adjustments to be made to a transmitter based on the velocity or location of a wireless communication device in relation to a wireless network infrastructure. The transmitter to be adjusted can be located in either the wireless communication device, or in a device in the wireless communication infrastructure, or both.
Claims53
A method of controlling transmitted power in a wireless communication system, the method comprising:
- determining velocity of a wireless communication device in relation to a device located in a wireless network infrastructure;
- determining the power level of a communication system signal transmitted over a wireless channel between the wireless communication device and the device located in the infrastructure;
- determining adjustments to the transmit power of the communication system signal based on the determined velocity of the wireless communication device;
- and
- providing the transmit power level adjustments to a transmitter of the received signals.
A method of determining a power control loop update frequency for a wireless communication system, the method comprising:
- determining a velocity of a wireless communication device;
- and
- determining a power control loop update frequency for the wireless communication system based on the velocity.
A method of controlling transmitted power in a wireless communication system, the method comprising:
- determining velocity of the wireless communication device in relation to a device in a wireless network infrastructure;
- predicting future changes to power level of a signal in the wireless communication system received over a wireless channel between the wireless communication device and the device in the wireless network infrastructure;
- and
- determining desired adjustments to transmit power level of the signal for resulting in a future desired received signal power level.
22 A method as defined in claim 21, wherein the navigational receiver is a Global Positioning System receiver.
A method of controlling transmitted power in a wireless communication system, the method comprising:
- determining a location of a wireless communication device in relation to a device in a wireless network infrastructure thereby determining received signal situation;
- and
- determining adjustments to a transmit power level in accordance with the determined location.
A method of determining an integration interval in a wireless communication system, the method comprising:
- determining velocity of a wireless communication device in relation to a device located in a wireless network infrastructure;
- and
- determining an integration interval to be used in measuring power at which a signal of the wireless communication system is received based on the determined velocity.
A method of controlling transmitted power in a wireless communication system, the method comprising:
- determining velocity of a wireless communication device in relation to a device located in a wireless network infrastructure;
- determining an integration interval to be used in measuring power level at which a signal of the wireless communication system is receiver based on the velocity of the wireless communication device;
- measuring power level of the signal of the wireless communication system received over a wireless channel between the wireless communication device and the device in the wireless network infrastructure using the integration interval;
- determining adjustments to transmit power at which a signal of the wireless communication system is transmitted in accordance with the determined velocity of the device;
- and
- providing the transmit power level adjustments to a transmitter of the received signals.
A wireless communication device comprising:
- a navigational receiver configured to receive navigation data and to output a velocity of the wireless communication device;
- a receiver configured to receive signals from a wireless network infrastructure;
- and
- a controller configured to receive the wireless communication device velocity from the navigational receiver and a measurement of the power level of a received signal from the receiver and to determine adjustments to a transmitter based on the velocity and received power level.
A wireless network infrastructure device comprising:
- a receiver configured to receive signals from a wireless communication device;
- and
- a controller configured to receive data indicating a velocity of the wireless communication device and a measurement of the power level of a received signal and to determine adjustments to a transmitter based on the velocity and received power level.
The method of controlling transmitted power in a wireless communication system, wherein determining adjustments to the transmit power of the communication system signal is based on both the determined velocity of the wireless communication device and the location of the wireless communication device.
Dependencies are inferred from the claim text.