Method and device for transmitting/receiving data in wireless access system supporting multi-radio access technology

摘要

The present invention relates to a method by which a terminal transmits/receives data to/from a first base station (BS) supporting a first radio access technology (RAT) and a second BS supporting a second RAT in a wireless access system supporting multi-RAT, the method comprising the steps of: executing an initial network entry to the first BS; a step for executing a multi-RAT capability negotiation with the first BS to exchange information needed to access the second BS; executing a scanning on at least one second BS included in the coverage of the first BS, on the basis of the information received from the first BS through the multi-RAT capability negotiation process; executing an access to a second BS of the at least one second BS; and simultaneously transmitting/receiving data with the first BS and the second BS accessed through the access process.

主权项

1. A method of transmitting/receiving data by a mobile station with a first base station supporting a 1st radio access technology and a second base station supporting a 2nd radio access technology, in a radio access system supporting a multi-radio access technology (RAT), comprising:
transmitting an indicator indicating the mobile station having a multi-RAT capability during network entry process with the first base station; if the indicator is received by the first base station, receiving, from the first base station, an information notifying that a multi-RAT capability negotiation process is performed after a completion of the network entry process; if the network entry process is an initial entry process to the first base station, performing a multi-RAT capability negotiation process with the first base station to exchange an information necessary for an additional access to the second base station; performing a scanning procedure on at least one second base station included in a coverage of the first base station based on the exchanged information received from the first base station by the multi-RAT capability negotiation process; performing an additional access procedure with a second base station of the at least one second base station; and transceiving the data simultaneously with the first base station and the second base station accessed by the additional access procedure, wherein if the network entry process is an re-entry process to the first base station prior to expiration of a predetermined timer, the multi-RAT capability negotiation process is omitted and the exchanged information is used for the re-entry process.