Patent ID: 9215646
Filing Date: 2015-12-15
Classification: H04W

Abstract:
1. A method of transceiving data by a mobile station with a first base station supporting a first radio access technology and a second base station supporting a second radio access technology in a radio access system supporting a multi-radio access technology (RAT), the method comprising: performing, by the mobile station, an initial network entry process with the first base station; performing, by the mobile station, a multi-RAT capability negotiation process with the first base station to exchange information necessary for an additional access to the second base station; performing, by the mobile station, 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, by the mobile station, an additional access procedure with a specific base station of the at least one second base station to simultaneously connect the mobile station to both the first base station and the specific base station; and if the additional access procedure with the specific base station is successful, simultaneously transmitting and receiving, by the mobile station, control information related to the RAT and data information to and from the first base station while simultaneously transmitting and receiving data information to and from the specific base station, wherein the performing the additional access procedure by the mobile station is based on a moving speed of the mobile station and includes: