System for controlling power on a mobile station and supporting method and apparatus
View Patent ↗In the present power control technique, a power control circuit ( 404 ) that is operably coupled to a receiver circuit ( 412 ) assesses ( 514, 522 ) a tclip adjust value based on a power cutback value from the receiver circuit. The tclip adjust value is forwarded to a peak to average ratio control circuit ( 402 ) operably coupled to the power control circuit ( 404 ), and using the tclip adjust value, an adjust peak power signal is accordingly assessed ( 612 ).
1. A method of controlling power on a mobile station comprising:
determining whether a power cutback value corresponds in at least a predetermined way to a maximum tclip adjust value;
assessing a tclip adjust value based on the maximum tclip adjust value when the power cutback value corresponds in at least the predetermined way to the maximum tclip adjust value; and
assessing the tclip adjust value based on the power cutback value when the power cutback value does not correspond in at least the predetermined way to the maximum tclip adjust value;
wherein assessing the tclip adjust value further comprises:
assessing an excess cutback value based on the power cutback value and the maximum tclip adjust value;
converting the excess cutback value from a decibel value to a linear gain value; and
assessing an access gain adjust value based on the converted excess cutback value.
2. The method according to claim 1 , wherein the maximum tclip adjust value is based on a peak to average ratio unclipped value and a peak to average ratio clipped value.
3. The method according to claim 1 further comprising:
sending the tclip adjust value to a peak to average ratio control circuit.
4. The method according to claim 1 further comprising:
converting the tclip adjust value from a decibel value to a linear value to provide a converted tclip adjust value;
assessing a peak power adjust value based on the converted tclip adjust value.
5. The method according to claim 4 further comprising:
sending the peak power adjust value to a peak to average ratio control circuit.
6. The method according to claim 1 further comprising:
receiving the power cutback value from a receiver;
initializing any one or more selected from a group comprising the tclip adjust value, a peak power adjust value, the excess gain adjust value, and the maximum tclip adjust value.
7. The method according to claim 1 further comprising:
sending the excess gain adjust value to a variable gain amplifier.
8. A method of controlling a peak to average ratio comprising:
receiving a tclip adjust value from a power control circuit;
assessing an adjust peak power signal based on the tclip adjust value;
receiving a peak power adjust value from the power control circuit;
assessing the adjust peak power signal further based on the peak power adjust value;
wherein assessing the adjust peak power signal further comprises:
assessing a tclip value based on a minimum tclip value and the tclip adjust value;
assessing a peak power control signal based on an output signal generated by a peak to average ratio control function;
assessing the adjust peak power signal based on the peak power control signal and the peak power adjust value.
9. The method according to claim 8 further comprising:
sending the adjust peak power signal to a variable gain amplifier.
10. An apparatus for controlling power on a mobile station comprising:
a receiver circuit having a power cutback value;
a power control circuit operably coupled to the receiver circuit, wherein the power control circuit assesses a tclip adjust value based on the power cutback value;
a peak to average ratio control circuit operably coupled to the power control circuit, wherein the peak to average ratio control circuit assesses an adjust peak power signal based on the tclip adjust value;
wherein the power control circuit provides a peak power adjust value to the peak to average ratio control circuit and the peak to average ratio control circuit further assesses the adjust peak power signal based on the peak power adjust value;
wherein the peak to average ratio control circuit also assesses a tclip value based on a minimum tclip value and the tclip adjust value, assesses a peak power control signal based on an output signal of a peak to average ratio control function and assesses the adjust peak power signal based on the peak power control signal and the peak power adjust value.
11. The apparatus as defined in claim 10 further comprising:
a variable gain amplifier operably coupled to the peak to average ratio control circuit, wherein the variable gain amplifier adjusts power of the mobile station based on an excess gain adjust value.
12. The apparatus as define in claim 10 , wherein the power control circuit comprises an assessing means for assessing the tclip adjust value.
13. The apparatus as defined in claim 10 , wherein the peak to average ratio control circuit comprises an assessing means for assessing the adjust peak power signal.
14. The apparatus as defined in claim 10 , wherein the power control circuit assesses the tclip adjust value based on a maximum tclip adjust value when the power cutback value corresponds in at least a predetermined way to the maximum tclip adjust value, otherwise the tclip adjust value is assessed based on the power cutback value.
15. The apparatus as defined in claim 10 , wherein the power control circuit further assesses peak the power adjust value based on the assessed tclip adjust value.
16. The apparatus as defined in claim 10 , wherein the power control circuit further assesses an excess gain adjust value based on the power cutback value.