US 8,818,442 B2 · Method for controlling signal transmission power and device for same

Abstract

The present invention relates to a wireless communication system. More particularly, the present invention relates to a signal transmission method in which a terminal transmits a signal in a wireless communication system, said method comprising the steps of: checking the maximum transmission power (P_CC_MAX) for each component carrier of a plurality of component carriers, as well as the maximum transmission power (P_UE_MAX) of the terminal; calculating the transmission power for each channel to be simultaneously transmitted to a base station through one or more component carriers; independently adjusting the transmission power for each of the channels so as not to exceed the maximum transmission power (P_CC_MAX) and the maximum transmission power (P_UE_MAX); and transmitting a signal to the base station through the plurality of channels for which the transmission power is adjusted.

Claims20

Dependent claims

A method of transmitting signals using multiple component carriers at a communication apparatus in a wireless communication system, the method comprising:

determining, per component carrier, transmission power of at least one channel for simultaneous transmission, in such a way that a total transmission power of the at least one channel does not exceed a maximum transmission power configured for a corresponding component carrier;
and
checking whether a total transmission power of a plurality of channels over the multiple component carriers for the simultaneous transmission exceeds a total maximum transmission power configured for the communication apparatus or not,
wherein, if the total transmission power of the plurality of channels over the multiple component carriers exceeds the total maximum transmission power configured for the communication apparatus, transmission power of at least one physical uplink shared channel (PUSCH) among the plurality of channels is adjusted in such a way that an adjusted total transmission power over the multiple component carriers does not exceed the total maximum transmission power.

1 more element

A communication apparatus configured to transmit signals using multiple component carriers in a wireless communication system, the communication apparatus comprising:

a Radio Frequency (RF) unit;
and
a processor,
wherein the processor is configured to:
determine, per component carrier, transmission powers of at least one channel for simultaneous transmission, in such a way that a total transmission power of the at least one channel does not exceed maximum transmission power configured for a corresponding component carrier;
and
check whether a total transmission power of a plurality of channels over the multiple component carriers for the simultaneous transmission exceeds a total maximum transmission power configured for the communication apparatus or not,
wherein, if the total transmission power of the plurality of channels over the multiple component carriers exceeds the total maximum transmission power configured for the communication apparatus, transmission power of at least one physical uplink shared (PUSCH) among the plurality of channels is adjusted in such a way that an adjusted total transmission power over the multiple component carriers does not exceed the total maximum transmission power.

5 more elements

Dependencies are inferred from the claim text.

Method for controlling signal transmission power and device for same

Life of this patent

Method for controlling signal transmission power and device for same

Life of this patent

Abstract

Claims20