System and method for adjusting transmission power of a communication device

1. A communication device in communication with a base station via a wireless communication network, the communication device comprising:

a processor;

a storage device comprising one or more programs, the one or more programs comprising:

an obtaining module operable to establish a call connection between the communication device and the base station via the wireless communication network, obtain a transmission power value and a receiving power value of the communication device from a storage system of the communication device, and obtain a power control signal transmitted from the base station when the call connection is established;

an adjustment module operable to adjust the transmission power value according to the power control signal, and calculate a power sum by adding the transmission power value to the receiving power value;

an modifying module operable to modify the transmission power value according to a difference between the power sum and the receiving power value; and

an amplifier control module operable to control an amplifier of the communication device to transmit different radiofrequency signals according to the modified transmission power value.

2. The system according to claim 1 , wherein the power control signal is a power reducing signal, a power balance signal, or a power increasing signal.

3. The system according to claim 2 , wherein the power adjustment module reduces the transmission power value by a first power value if the power control signal is the power reducing signal, balances the transmission power value if the power control signal is the power balance signal, or increases the transmission power value by a second power value if the power control signal is the power increasing signal.

4. The system according to claim 1 , wherein the power sum is unchanged until a next power control signal received by the communication device.

5. A method for adjusting transmission power of a communication device, the method comprising:

establishing a call connection between the communication device and a base station via a wireless communication network,

obtaining a transmission power value and a receiving power value of the communication device from a storage system of the communication device, and obtaining a power control signal received by the communication device when the call connection is established;

adjusting the transmission power value according to the power control signal;

calculating a power sum by adding the transmission power value to the receiving power value; and

modifying the transmission power value according to a difference between the power sum and the receiving power value; and

controlling an amplifier of the communication device to transmit different radiofrequency signals according to the modified transmission power value.

6. The method according to claim 5 , wherein the power control signal is a power reducing signal, a power balance signal, or a power increasing signal.

7. The method according to claim 6 , wherein the adjusting block comprises:

reducing the transmission power value by a first power value if the power control signal is the power reducing signal;

balancing the transmission power value if the power control signal is a power balance signal; or

increasing the transmission power value by a second power value if the power control signal is a power increasing signal.

8. The method according to claim 5 , wherein the power sum is unchanged until a next power control signal received by the communication device.

9. A non-transitory storage medium having stored thereon instructions that, when executed by a processor of a communication device, causing the processor to perform a method for adjusting transmission power of the communication device, the method comprising:

establishing a call connection between the communication device and a base station via a wireless communication network,

obtaining a transmission power value and a receiving power value of the communication device from a storage system of the communication device, and obtaining a power control signal received by the communication device when the call connection is established;

adjusting the transmission power value according to the power control signal;

calculating a power sum by adding the transmission power value to the receiving power value; and

modifying the transmission power value according to a difference between the power sum and the receiving power value; and

controlling a amplifier of the communication device to transmit different radiofrequency signals according to the modified transmission power value.

10. The medium according to claim 9 , wherein the power control signal is a power reducing signal, a power balance signal, or a power increasing signal.

11. The medium according to claim 10 , wherein the adjusting block comprises:

reducing the transmission power value by a first power value if the power control signal is the power reducing signal;

balancing the transmission power value if the power control signal is a power balance signal; or

increasing the transmission power value by a second power value if the power control signal is a power increasing signal.

12. The medium according to claim 9 , wherein the power sum is unchanged until a next power control signal received by the communication device.