Signaling for target-initiated conditional handover modification via cancellation

An apparatus, comprising:

• one or more processors;
• and
• one or more memories including computer program code,
• the one or more memories and the computer program code configured, with the one or more processors, to cause the apparatus to at least:
• receive a conditional handover cancellation message from a target node, wherein the conditional handover cancellation message comprises an indication indicating modification-related cancellation for a user equipment, and wherein the indication comprises a cause value or an information element;
• and
• send a response message to the target node, wherein the response message comprises an indicator indicating whether the user equipment has successfully reconfigured and/or released conditional handover to enable the target node to determine, when the indicator indicating the user equipment has not successfully reconfigured and/or released conditional handover, to retain user equipment context for a period of time during which the user equipment may or may not complete conditional handover to the target node or another target node, wherein the period of time is a configured parameter.

An apparatus, comprising:

• one or more processors;
• and
• one or more memories including computer program code,
• the one or more memories and the computer program code configured, with the one or more processors, to cause the apparatus to at least:
• send, to a source node, a conditional handover cancellation message, wherein the conditional handover cancellation message comprises an indication indicating modification-related cancellation, and wherein the indication comprises a cause value or an information element;
• and
• receive a response message from the source node, wherein the response message comprises an indicator indicating whether a user equipment has successfully reconfigured and/or released conditional handover;
• and
• determine, when the indicator indicating the user equipment has not successfully reconfigured and/or released conditional handover, to retain user equipment context for a period of time during which the user equipment may or may not complete conditional handover to the apparatus or another target node, wherein the period of time is a configured parameter.