Power control of network part transmitter in radio system
View Patent ↗An apparatus, method, and computer-readable medium in various embodiments includes a transmitter that establishes a radio connection that sends signals to a user equipment using a required transmission power; a receiver that receives a signal sent by the user equipment over the radio connection, the signal comprising at least one power control command determined by the user equipment; and a processor configured to specify the required transmission power in the transmitter using a delay requirement of a service to be transferred over the radio connection and the at least one power control command as a basis for making the power control decision, wherein at least one dedicated physical channel and at least a part of a shared physical channel that is time-divisionally shared are allocated to the user equipment on the radio connection, wherein the processor is further configured to carry out the power control of the time-divisionally shared physical channel on the basis of the power control decision of the dedicated physical channel.
1. An apparatus, comprising:
a transmitter that establishes a radio connection that sends signals to a user equipment using a required transmission power;
a receiver that receives a signal sent by the user equipment over the radio connection, the signal comprising at least one power control command determined by the user equipment; and
a processor configured to specify the required transmission power in the transmitter using a delay requirement of a service to be transferred over the radio connection and the at least one power control command as a basis for making the power control decision,
wherein at least one dedicated physical channel and at least a part of a shared physical channel that is time-divisionally shared are allocated to the user equipment on the radio connection,
wherein the processor is further configured to carry out the power control of the time-divisionally shared physical channel on the basis of the power control decision of the dedicated physical channel.
2. The apparatus of claim 1 , wherein the processor is further configured to use a fast power control for a short delay real-time service in which the required transmission power is specified after each received power control command.
3. The apparatus of claim 2 , wherein the processor is further configured to protect information included in the short delay real-time service using a forward error-correcting code.
4. The apparatus of claim 1 , wherein the processor is further configured to use a slower power control than a fast power control for long delay real-time services in which the required transmission power is not changed after each received power control command.
5. The apparatus of claim 1 , wherein the processor is further configured to use a slow power control for non-real time services in which the required transmission power is not changed after each received power control command.
6. The apparatus of claim 1 , wherein the processor is further configured to protect information included in the service using a forward error correcting code and to determine whether a retransmission using a retransmission request protocol is necessary.
7. The apparatus of claim 6 , wherein the processor is further configured to implement a soft combining of data packets retransmitted in accordance with the retransmission request protocol included in the services to reduce a number of required retransmissions.
8. The apparatus of claim 7 , wherein at least one dedicated physical channel and at least a part of a shared physical channel that is time-divisionally shared are allocated to the user equipment on the radio connection, wherein the processor is further configured to perform the soft combining of the retransmitted data packets on the time-divisionally shared physical channel.
9. The apparatus of claim 1 , wherein the receiver receives the power control command separately for each frame slot to be used on the radio connection.
10. The apparatus of claim 1 , wherein the processor is further configured to change the transmission power required less frequently than during each frame slot to be used on the radio connection.
11. The apparatus of claim 10 , wherein the processor is further configured to change the transmission power required, at the most, during each frame to be used on the radio connection.
12. The apparatus of claim 10 , wherein the processor is further configured to calculate a quantity describing an average value from a certain number of power control commands, the quantity thereafter being used as a basis for making the power control decision.
13. An apparatus configured for performing power control of a network part transmitter in a radio system, the apparatus comprising:
means for establishing a radio connection from the network part transmitter to a user equipment;
means for sending a signal on the radio connection from the network part transmitter using a required transmission power;
means for receiving signalling of a power control command from a user equipment at the transmitter, where the power control command is determined by the user equipment in response to receiving the signal sent from the radio part transmitter and measuring a quality value for the signal, where the power control command is determined based on the quality value;
means for specifying the power control required in the transmitter using a delay requirement of a service to be transferred over the radio connection and at least one received power control command as the basis for making a power control decision;
means for allocating at least one dedicated physical channel to the user equipment on the radio connection and at least a part of the shared physical channel that is time-divisionally shared; and
means for carrying out the power control of the time-divisionally shared physical channel on the basis of the power control decision of the dedicated physical channel.
14. The apparatus of claim 13 , wherein short delay real time services use fast power control in which the transmission power required is specified after each received power control command.
15. A method for power control of a network, the method comprising:
establishing a radio connection from a network part transmitter to a user equipment;
sending a signal on the radio connection from the network part transmitter using a required transmission power;
receiving at least one power control command from the user equipment, said power control command being determined, at least in part, upon a quality value relating to a signal quality in the user equipment;
specifying a required power control for the transmitter using a delay requirement of a service to be transferred over the radio connection and said at least one received power control command as the basis for making a power control decision,
wherein at least one dedicated physical channel is allocated to the radio connection and at least a part of the shared physical channel that is time-divisionally shared, and the power control of the time-divisionally shared physical channel is carried out on the basis of the power control decision of the dedicated physical channel.
16. A computer program product containing a non-transitory computer-readable medium, the computer-readable medium comprising computer code thereon suitable for performing power control in a network which, when executed by a processor, causes the processor to:
establish a radio connection from a network part transmitter to a user equipment;
send a signal on the radio connection from the network part transmitter using a required transmission power;
interpret a power control command received from the user equipment;
specify a power control required in the transmitter using a delay requirement of a service to be transferred over the radio connection and at least one received power control command as the basis for making a power control decision;
allocate at least one dedicated physical channel to the user equipment on the radio connection and at least a part of the shared physical channel that is time-divisionally shared; and
carry out the power control of the time-divisionally shared physical channel on the basis of the power control decision of the dedicated physical channel.
17. The computer program product of claim 16 , wherein the computer code, when executed, causes the processor to assign a fast power control for short delay real-time services so as to specify the transmission power required after each received power control command.