Method of supporting signal transmission and reception using at least two radio access technologies and apparatus therefor

Abstract

A method of supporting signal transmission/reception using at least two RATs and apparatus therefor are disclosed. The present invention includes, when a user equipment is simultaneously accessing a 1^st base station of a 1^st communication network supportive of a 1^st RAT and a 2^nd base station of a 2^nd communication network supportive of a 2^nd RAT, receiving a setup message indicating a termination of a connection to the 2^nd base station from the 1^st base station and terminating the connection to the 2^nd base station. Before the connection to the 2^nd base station is terminated, the user equipment transceives data for a specific traffic type via the 2^nd base station and also transceives data except the specific traffic type via the 1^st base station. If the connection to the 2^nd base station is terminated, the user equipment transceives the data for the specific traffic type via the 1^st base station.

Description

[0001]Pursuant to 35 U.S.C. §119(e), this application claims the benefit of earlier filing date and right of priority to U.S. Application No. 61 / 676,312, filed on Jul. 26, 2012, No. 61 / 692,241, filed on Aug. 23, 2012, No. 61 / 693,759, filed on Aug. 27, 2012, No. 61 / 699,263, filed on Sep. 10, 2012, and No. 61 / 809,423, filed on Apr. 8, 2013, the contents of which are hereby incorporated by reference herein in their entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a wireless communication, and more particularly, to a method of supporting signal transmission and reception using at least two radio access technologies (RATs) and apparatus therefor.[0004]2. Discussion of the Related Art[0005]There may exist a multi-RAT user equipment having capability of accessing at least two radio access technologies (RATs). In order to access a specific radio access technology (hereinafter abbreviated RAT), a connection to the specific RAT is estab...

AI Technical Summary

Benefits of technology

[0019]First of all, according to various embodiments of the present invention, a user equipment capable of supporting both Cellular and WLAN in a broadband wireless communication system can efficiently perform a heterogeneous selection for a flow through a control of a cellular network.

Problems solved by technology

Yet, even if the multi-RAT user equipment is capable of accessing at least two RATs, it is unable to access a plurality of RATs at the same time.

In particular, currently, even if a user equipment has multi-RAT capability, it is unable to simultaneously perform data transmission / reception through different RATs.

Since all transmitted data are transmitted in a manner of being switched to another RAT, the related art multi-RAT technology has a problem in selecting an RAT suitable for characteristics of a flow.

However, a solution for this problem has not been proposed yet.

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