Method and apparatus for handover in a mobile station supporting radio access technology

摘要

A method and apparatus supports Inter-Radio Access Technology (IRAT) Packet Switch (PS) handover during a simultaneous voice and data (SVD) mode in a mobile station that supports a Radio Access Technology (RAT). The method includes determining a state in which a data call is connected through a first system and a voice call is connected through a second system. The MS determines whether handover to the second system should be performed for the data call. A measurement report message that indicates a set of active base stations (BSs) of voice call connection in the second system is generated. And the measurement report message is transmitted to a serving BS of the data call connection in the first system.

主权项

1. A method for handover in a mobile station (MS), the method comprising:
receiving concurrently a data call and a voice call, wherein the data call is connected through a first serving base station (BS) in a first system and the voice call is connected through a second serving BS in a second system; determining to perform a handover for the data call of the first serving BS; generating a report message that includes measurement information of a plurality of base stations (BSs) active for a voice call connection in the second system; transmitting the report message to the first serving BS; receiving a handover instruction message, including information on a target BS among the plurality of BSs active for the voice call connection in the second system as a function of the measurement information from the first serving BS; and performing the handover from the first BS to the target BS, wherein the target BS is capable of supporting both the data call and the voice call in the second system, wherein the report message includes a signal intensity for each of the plurality of BSs in the second system, and wherein the signal intensity for active BSs among the plurality of BSs is set higher than the signal intensities of other BSs that do not correspond to the active BSs.