Method and apparatus for handover in communication system

A method for a handover by a target base station in a communication system, the method comprising:

• transmitting a signal corresponding to each of at least two coverage served by the target base station, which is located within a coverage of a serving base station;
• receiving, from the serving base station, a request for establishing a connection with a terminal, wherein the request is determined based on a first measurement of the signal by the terminal;
• transmitting, to the serving base station, a response of the request;
• if an acknowledgement of the response is received from the serving base station, receiving, from the terminal, a second measurement of the connection;
• and
• determining whether releasing of the connection is performed.

A method for a handover by a terminal in a communication system, the method comprising:

• receiving, from a target base station, a signal among signals corresponding to at least two coverage served by the target base station, which is located within a coverage of a serving base station;
• transmitting, to the serving base station, a first measurement of the signal;
• receiving, from the serving base station, information indicating whether a connection between the terminal and the target base station is established;
• and
• transmitting, to the target base station, a second measurement on the connection based on the information.

A serving base station for a handover of a terminal in a communication system, the serving base station comprises:

• a transceiver configured to receive from the terminal, a first measurement of a target base station located within a coverage of the serving base station;
• and
• a processor configured to:
• determine whether the first measurement satisfies a handover condition,
• if the first measurement does not satisfy the handover condition, control the transceiver to transmit, to the target base station, a request for establishing a connection between the terminal and the target base station based on the first measurement, and
• if a response of the request is received from the target base station, control the transceiver to transmit, to the terminal, information indicating the connection is established.

A target base station for a handover in a communication system, the target base station comprising:

• a transceiver configured to:
• receive a signal corresponding to each of at least two coverage served by the target base station, which is located within a coverage of a serving base station,
• receive, from the serving base station, a request for establishing a connection between a terminal, the request being determined based on a first measurement of the signal by the terminal,
• transmit, to the serving base station, a response of the request, if an acknowledgement of the response is received from the serving base station, and
• receive, from the terminal, a second measurement of the connection;
• and
• a processor configured to determine whether releasing of the connection is performed.

A terminal for a handover in a communication system, the terminal comprising:

• a transceiver configured to receive, from a target base station, a signal among signals corresponding to at least two coverage served by the target base station, which is located within a coverage of a serving base station,
• a processor configured to:
• generate a first measurement of the signal, and
• control the transceiver to:
• transmit, to the serving base station, a first measurement of the signal,
• receive, from the serving base station, information indicating whether a connection between the terminal and the target base station is established, and
• transmit, to the target base station, a second measurement on the connection based on the information.