Method and apparatus for improving sound quality

An apparatus for improving a sound quality, comprising:

• a processor installed in a base station executing instructions to operate as a first speech enhancement unit to remove noise in a transmission signal of a first user equipment using noise information of the first user equipment side;
• and
• the processing further executing instructions to operate as a first speech reinforcement unit to perform speech reinforcement with respect to the noise removed transmission signal of the first user equipment using noise information of a second user equipment side;
• wherein the first speech enhancement unit and the first speech reinforcement unit are located in the base station, and not at the first user equipment or the second user equipment.

A base station comprising:

• a receiver to receive a transmission signal of a first user equipment;
• a processor installed in the base station and executing instructions to operate as a first speech enhancement unit to remove noise in the transmission signal of the first user equipment using noise information of the first user equipment side;
• the processing further executing instructions to operate as a first speech reinforcement unit to perform speech reinforcement with respect to the noise removed transmission signal of the first user equipment using noise information of a second user equipment side;
• and
• a transmitter to transmit the speech reinforced transmission signal of the first user equipment to the second user equipment;
• wherein the first speech enhancement unit and the first speech reinforcement unit are located in the base station, and not at the first user equipment or the second user equipment.

A method of improving a sound quality, comprising:

• receiving a first transmission signal of a first user equipment;
• removing noise in the first transmission signal using first noise information of the first user equipment side;
• performing speech reinforcement with respect to the noise removed first transmission signal using second noise information of a second user equipment side;
• transmitting the speech reinforced first transmission signal to the second user equipment;
• receiving a second transmission signal of the second user equipment;
• removing noise in the second transmission signal using the second noise information of the second user equipment side;
• performing speech reinforcement with respect to the noise removed second transmission signal using the first noise information of the first user equipment side;
• and
• transmitting the speech reinforced second transmission signal to the first user equipment,
• wherein the receivings, removings, performings and transmittings are performed at a base station but not at the first user equipment and the second user equipment.