Handover method based on uplink signal, method for configuring uplink signal, user equipment and base station

A base station, configured in a communication system where UE is handed over from a source base station to the base station, wherein the base station comprises:

• a detecting unit, configured to detect an uplink signal for handover transmitted by the UE;
• and
• a notification transmitting unit, configured to transmit a notification message to the source base station according to detection of the uplink signal, so that the source base station performs handover of the UE according to the notification message.

UE, configured in a communication system where UE is handed over from a source base station to a target base station, wherein the UE comprises:

• a message receiving unit, configured to receive a triggering message transmitted by the source base station;
• and
• a signal transmitting unit, configured to transmit an uplink signal for handover according to the triggering message, so that one or more other base station(s) transmit notification message(s) to the source base station according to the detection of the uplink signal, and the source base station performs handover of the UE according to the notification message(s).

A base station, comprising:

• a negotiating unit, configured to negotiate configuration information of an uplink signal of UE with one or more second base station(s);
• and
• an information transmitting unit, configured to transmit the configuration information of the uplink signal to the UE.

A base station, comprising:

• a negotiating unit, configured to negotiate configuration information of an uplink signal of UE with a first base station;
• and
• a detecting unit, configured to detect the uplink signal transmitted by the UE according to the configuration information.

UE, comprising:

• an information receiving unit, configured to receive configuration information of an uplink signal transmitted by a first base station;
• and
• a signal transmitting unit, configured to transmit the uplink signal according to the configuration information, so that one or more second base station(s) detect the uplink signal.