Handover Apparatus and Method for Avoiding In-Device Coexistence

A method, comprising:

• establishing a wireless connection with a User Equipment (UE) via a first system, the first system corresponding to a mobile communication system, wherein the UE supports the first system and a second system;
• transmitting a first message to a Target Base Station (TBS), by a Source Base Station (SBS), wherein the first message comprises Time Division Multiplexing (TDM) information related to avoidance of In-Device Coexistence (IDC) interference of the UE, wherein the TDM information related to the avoidance of IDC interference by the UE comprises TDM pattern information, wherein the TDM pattern information corresponds to information on a subframe pattern in a bitmap form;
• receiving a response to the first message from the TBS, by the SBS;
• and
• transmitting a second message to the UE, by the SBS, for handover to the TBS.

A method, comprising:

• by a Target Base Station (TBS):
• receiving a first message from a Source Base Station (SBS) via a first system, wherein the first system comprises a mobile communication system, wherein the first message comprises Time Division Multiplexing (TDM) information related to avoidance of In-Device Coexistence (IDC) interference of a User Equipment (UE), wherein the TDM information related to the avoidance of IDC interference by the UE comprises TDM pattern information, wherein the TDM pattern information corresponds to information on a subframe pattern in a bitmap form, wherein the UE supports the first system and a second system;
• transmitting a response to the first message to the SBS;
• and
• performing communication with the UE using TDM-based data transmission.

An apparatus for operating a Source Base Station (SBS), the apparatus comprising a processor, wherein the processor is configured to cause the SBS to:

• establish a wireless connection with a User Equipment (UE) via a first system, the first system corresponding to a mobile communication system, wherein the UE supports the first system and a second system;
• transmit a first message to a Target Base Station (TBS), wherein the first message comprises Time Division Multiplexing (TDM) information related to avoidance of In-Device Coexistence (IDC) interference of the UE, wherein the TDM information related to the avoidance of IDC interference by the UE comprises TDM pattern information, wherein the TDM pattern information corresponds to information on a subframe pattern in a bitmap form;
• receive a response to the first message from the TBS, by the SBS;
• and
• transmit a second message to the UE, by the SBS, for handover to the TBS.