Effective method of handover in wideband radio access system

摘要

The present invention relates t a wideband radio access system, and more particularly, to a method for enabling adjustment of timing to transmit a handover instruction message and to a mobile terminal capable of performing the method. A method for a terminal handover in a wideband radio access system according to one embodiment of the present invention comprises: receiving from a serving base station a handover command message that contains first timing information indicative of a time for transmitting a first uplink resource allocation information to transmit a handover instruction message; receiving the first uplink allocation information from the serving base station at the timing indicated by the first timing information; and transmitting the handover instruction message to the serving base station through an uplink resource indicated by the first uplink allocation information.

主权项

1. A method for performing handover in a wireless communication system, the method comprising:
receiving, by a mobile station from a serving base station, a handover command message including:
information related to a disconnect time,wherein the information related to the disconnect time is configured in units of frames,wherein the disconnect time is a time for the mobile station to disconnect from the serving base station, andwherein the disconnect time indicates a time point at which the serving base station stops sending downlink data to the mobile station and stops an uplink resource allocation for the mobile station, andan action time for the mobile station to transmit a ranging request to a target base station; if the mobile station cannot maintain a connection with the serving base station until the disconnect time, transmitting, by the mobile station to the serving base station, a handover indication message for disconnecting the mobile station from the serving base station earlier than the disconnect time; and transmitting, by the mobile station to the target base station, the ranging request based on a dedicated ranging code at the action time.