Monitoring and control of transmit power in a multi-modem wireless communication device
A method ( 100 ) for limiting transmission power of a communication device ( 600 ) having a plurality of transceivers ( 610, 615 ). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.
1. A method for limiting transmission power of a communication device having a plurality of transceivers, comprising:
determining a desired maximum transmission power;
determining a plurality of power contribution factors, each of the power contribution factors associated with a respective one of the transceivers;
determining an expected transmission power based on, at least in part, a sum of the power contribution factors;
responsive to the expected transmission power exceeding the desired maximum transmission power, selectively reducing or terminating the power contribution for a first of the transceivers by re-assigning a first service currently active on the first transceiver to a second of the transceivers; and
granting a new service request pursuant to reducing or terminating the power contribution for the first transceiver.
2. The method of claim 1 , wherein selectively reducing the power contribution comprises reducing a bit rate of a data stream for the at least one of the transceivers.
3. The method of claim 1 , wherein selectively reducing the power contribution comprises reducing a duty cycle of a data stream for the at least one of the transceivers.
4. The method of claim 1 , wherein selectively terminating the power contribution comprises halting communication on at least one of the transceivers.
5. The method of claim 1 , wherein selectively reducing or terminating the power contribution for the first transceiver comprises reallocating a service currently active on the first transceiver to the second of the transceivers.
6. A communication device, comprising:
a plurality of transceivers;
a storage device tangibly embodying a program of instructions; and
a controller, configured to execute the program of instructions, that:
determines a desired maximum transmission power;
determines a plurality of power contribution factors, each of the power contribution factors associated with a respective one of the transceivers;
determines an expected transmission power based on, at least in part, a sum of the power contribution factors;
responsive to the expected transmission power exceeding the desired maximum transmission power, selectively reduces or terminates the power contribution for a first of the transceivers by re-assigning a first service currently active on the first transceiver to a second of the transceivers; and
grants a new service request pursuant to reducing or terminating the power contribution for the first transceiver.
7. The communication device of claim 6 , wherein the controller selectively reduces a bit rate of a data stream for the at least one of the transceivers in order to selectively reduce the power contribution.
8. The communication device of claim 6 , wherein the controller selectively reduces a duty cycle of a data stream for the at least one of the transceivers in order to selectively reduce the power contribution.
9. The communication device of claim 6 , wherein the controller receives a request for an increase in instantaneous transmit power of a service data stream being transmitted by the first transceiver and, responsive to the request, the controller reduces a bit rate of a service data stream being transmitted by the second of the transceivers and increases an energy per bit of the service data stream being transmitted by the first transceiver.
10. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for limiting transmission power of a communication device having a plurality of transceivers, said method steps comprising:
determining a desired maximum transmission power;
determining a plurality of power contribution factors, each of the power contribution factors associated with a respective one of the transceivers;
determining an expected transmission power based on, at least in part, a sum of the power contribution factors;
responsive to the expected transmission power exceeding the desired maximum transmission power, selectively reducing or terminating the power contribution for a first of the transceivers by re-assigning a first service currently active on the first transceiver to a second of the transceivers; and
granting a new service request pursuant to reducing or terminating the power contribution for the first transceiver.
11. A method for limiting transmission power of a communication device having a plurality of transceivers, comprising:
determining a desired maximum transmission power;
determining a plurality of power contribution factors, each of the power contribution factors associated with a respective one of the transceivers;
determining an expected transmission power based on, at least in part, a sum of the power contribution factors;
responsive to the expected transmission power exceeding the desired maximum transmission power, selectively reducing or terminating the power contribution for a first of the transceivers; and
responsive to receiving a request for an increase in instantaneous transmit power of a service data stream being transmitted by the first transceiver, reducing a bit rate of a service data stream being transmitted by a second of the transceivers and increasing an energy per bit of the service data stream being transmitted by the first transceiver.
12. A communication device, comprising:
a plurality of transceivers;
a storage device tangibly embodying a program of instructions; and
a controller, configured to execute the program of instructions, that:
determines a desired maximum transmission power;
determines a plurality of power contribution factors, each of the power contribution factors associated with a respective one of the transceivers;
determines an expected transmission power based on, at least in part, a sum of the power contribution factors;
responsive to the expected transmission power exceeding the desired maximum transmission power, selectively reduces or terminates the power contribution for a first of the transceivers; and
responsive to receiving a request for an increase in instantaneous transmit power of a service data stream being transmitted by the first transceiver, reduces a bit rate of a service data stream being transmitted by a second of the transceivers and increases an energy per bit of the service data stream being transmitted by the first transceiver.
13. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for limiting transmission power of a communication device having a plurality of transceivers, said method steps comprising:
determining a desired maximum transmission power;
determining a plurality of power contribution factors, each of the power contribution factors associated with a respective one of the transceivers;
determining an expected transmission power based on, at least in part, a sum of the power contribution factors;
responsive to the expected transmission power exceeding the desired maximum transmission power, selectively reducing or terminating the power contribution for a first of the transceivers; and
responsive to receiving a request for an increase in instantaneous transmit power of a service data stream being transmitted by the first transceiver, reducing a bit rate of a service data stream being transmitted by a second of the transceivers and increasing an energy per bit of the service data stream being transmitted by the first transceiver.