Method and apparatus for avoiding in-device coexistence interference with keeping time update for handover

摘要

A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing coexistence mode handover procedures which establish an updateable “keeping time” parameter to prevent premature switch back or handover to an interfering network node after handoff.

主权项

1. A method for use in user equipment (UE) comprising first and second radio components on a single platform, comprising:
sending a handover request message to request handover for the first radio component from a source to a target for a keeping time, where the handover request message comprises an update field that indicates whether an update to the keeping time is requested along with an additional keeping time field if the update field indicates a request to extend the keeping time; receiving a handover command message to handover the first radio component from the source to the target for a specified keeping time to establish a coexistence mode for the first and second radio components; and enabling the first radio component to handover the first radio component to the target for the specified keeping time so that the first radio component is not handed back to the source during the specified keeping time, thereby enabling radio resources on the UE to be used by the second radio component without interference from/to the first radio component.