Method and apparatus for transceiving data in a radio access system which supports a multi-radio access technology

摘要

The present description relates to a method in which a multi-radio access technology (RAT) terminal transceives data to/from a first base station that supports a first RAT and to/from a second base station that supports a second RAT, in a radio access system which supports multi-radio access technologies (RATs). The multi-RAT terminal transmits, to the first base station, a multi-RAT capability negotiation request message containing control information indicating the second base station which is preferred for communication, thereby simplifying a scanning process for the second base station and thus reducing the power consumption of the multi-RAT terminal.

主权项

1. A method of a multi-radio access technology (multi-RAT) mobile station transmitting and receiving data to and from a first base station supporting first radio access technology and a second base station supporting second RAT in a radio access system supporting multiple RATs, the method comprising:
performing a network entry process with the first base station; transmitting a multi-RAT capability negotiation request message, comprising control information indicating a second base station preferred to communicate with, to the first base station, the preferred second base station being one of one or more second base stations included in a coverage of the first base station; receiving a multi-RAT capability negotiation response message, corresponding to the multi-RAT capability negotiation request message, from the first base station; receiving information related to the second base station preferred to communicate with from the first base station, wherein the information related to the preferred second base station is at least one of a beacon interval, a scan type, probe delay, a list of channels to be scanned, and information about a minimum or maximum time during which scanning has to be performed in each channel; performing a scanning procedure only on the preferred second base station of the one or more second base stations included in a coverage of the first base station according to the received information; performing an access procedure with any one of the one or more second base stations; and simultaneously transmitting and receiving data to and from the first base station and the second base station accessed through the access procedure.