Method for controlling power of a radio frequency system
A method for saving power of a radio frequency (RF) system is provided herein. The method includes the steps of supplying a RF transmitter of the RF system configured for sending a RF transmission at a first transmission power level and supplying a RF receiver in communication with a controller of the RF system, the RF receiver configured for receiving the RF transmission from the RF transmitter. The controller includes a control algorithm to adjust the transmission power level of the RF transmitter based upon a status of a data frame to be received by the RF receiver. An RF system using the aforesaid method is also provided.
1. A method for saving power of a radio frequency system including an RF transmitter, an RF receiver and a controller, the method comprising the steps of:
transmitting, by the RF transmitter, a data frame at a first transmission power level;
receiving, by the RF receiver, the data frame from the RF transmitter;
determining, by the controller, whether the data frame is received in full by the RF receiver;
increasing, by the controller, the transmission power level of the RF transmitter to a second transmission power level for a subsequent transmission of a subsequent data frame in the event the data frame is not received in full by the RF receiver;
maintaining, by the controller, the first transmission power level in the event the data frame is received in full by the RF receiver;
resetting, by the controller, the second transmission power level to a default setting when the RF transmitter is determined to be idle for a period of time; and
repeating, by the controller, the preceding steps for subsequent data frames.
2. The method according to claim 1 , further comprising supplying an interim transponder configured for initiating a request for the RF transmitter to send the RF transmission.
3. The method according to claim 2 , wherein the interim transponder is capable of receiving and transmitting wireless radio signal or radio frequency protocol.
4. The method according to claim 3 , wherein the wireless radio signal or radio frequency protocol is selected from the group consisting of low frequency, Bluetooth Low Energy, Bluetooth and ultra wide band.
5. The method according to claim 1 , wherein the first transmission power level is the default setting.
6. The method according to claim 1 , wherein the RF system comprises a plurality of RF transmitters, the method further comprising the steps of:
increasing, by the controller, the transmission power level of one or more of the plurality of RF transmitters to the second transmission power level for the subsequent transmission of the subsequent data frame in the event the data frame is not received in full by the RF receiver; and
resetting, by the controller, the second transmission power level to a default setting when the one or more of the plurality of RF transmitters is determined to be idle for a period of time.
7. A method of saving power of a radio frequency system within a motor vehicle according to claim 1 .
8. The method according to claim 5 , further comprising overwriting, by the controller, the default setting with the second transmission power level.
9. A vehicular system having a radio frequency (RF) system embedded within a motor vehicle, the RF system comprising:
an RF transmitter for transmitting a data frame at a first transmission power level;
an RF receiver configured to receive the data frame transmitted from the RF transmitter; and
a controller configured to:
a) determine whether the data frame is received in full by the RF receiver,
b) increase the transmission power level of the RF transmitter to a second transmission power level for a subsequent transmission of a subsequent data frame in the event the data frame is not received in full by the RF receiver,
c) maintain the first transmission power level in the event the data frame is received in full by the RF receiver,
d) reset the second transmission power level to a default setting when the RF transmitter is determined to be idle for a period of time, and
e) repeat steps (a) to (d) for subsequent data frames.
10. The vehicular system according to claim 9 , wherein the RF system further comprises an interim transponder to initiate one or more requests for the RF transmitter to send a RF transmission.
11. The vehicular system according to claim 10 , wherein the interim transponder is operable to receive and transmit a wireless radio signal or a radio frequency protocol.
12. The vehicular system according to claim 11 , wherein the wireless radio signal or radio frequency protocol is selected from the group consisting of low frequency, Bluetooth Low Energy, Bluetooth and ultra wide band.
13. The system according to claim 9 , further comprising a plurality of RF transmitters, and
wherein the controller is configured to:
increase the transmission power level of one or more of the plurality of RF transmitters to the second transmission power level for the subsequent transmission of the subsequent data frame in the event the data frame is not received in full by the RF receiver, and
reset the second transmission power level to a default setting when the one or more of the plurality of RF transmitters is determined to be idle for a period of time.
14. The system according to claim 9 , wherein the first transmission power level is the default setting.
15. The system according to claim 14 , wherein the controller is further configured to:
overwrite the default setting with the second transmission power level.