Carrier bearing method and device, and radio remote unit

A carrier bearing device, comprising:

• the carrier bearing device being within a base station, and the carrier bearing device comprises:
• a carrier power obtaining unit, configured to obtain transmit power of each carrier borne on power amplifiers in a radio remote unit;
• a correspondence adjusting unit, configured to adjust a correspondence between the carriers and the power amplifier in the radio remote unit according to the obtained transmit power, wherein the correspondence adjusting unit comprises:
• a power calculating module, configured to calculate total input power of all power amplifiers under each of n correspondences between the carriers and the power amplifiers according to the obtained transmit power, wherein n is an integer smaller than or equal to pf, p is the total number of power amplifiers in the radio remote unit and is an integer larger than 1, and f is the number of carriers on all the power amplifiers in the radio remote unit and is an integer larger than 1;
• and
• a first obtaining module, configured to obtain a correspondence that is between the carriers and the power amplifier and is corresponding to a minimum total input power value among n total input power values, wherein the correspondence between the carriers and the power amplifier is the adjusted correspondence;
• and
• a carrier bearing unit, configured to bear each carrier on its corresponding power amplifier according to the adjusted correspondence.

A base station, comprising:

• power amplifiers, configured to bear carriers and perform power amplification for the borne carriers;
• and
• a carrier bearing device comprising:
• a carrier power obtaining unit, configured to obtain transmit power of each carrier borne on power amplifiers in a radio remote unit;
• a correspondence adjusting unit, configured to adjust a correspondence between the carriers and the power amplifier in the radio remote unit according to the obtained transmit power, wherein the adjusting of the correspondence between the carriers and the power amplifier according to the obtained transmit power comprises:
• adjusting the correspondence according to the obtained transmit power, so that total input power required by all the power amplifiers in the radio remote unit under the adjusted correspondence is smaller than the total input power required by all the power amplifiers under the correspondence;
• and
• a carrier bearing unit, configured to bear each carrier on its corresponding power amplifier according to the adjusted correspondence.