Patent ID: 9185703
Filing Date: 2015-11-10
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation, the method comprising: configuring, by a mobile terminal, a first cell having a first TDD (Time Division Duplex) UL-DL (Uplink-Downlink) configuration and a second cell different from the first cell and having a second TDD UL-DL configuration different from the first TDD UL-DL configuration; receiving, by the mobile terminal, data through a DL subframe of the first cell; and transmitting, by the mobile terminal, acknowledgement information on the data through a UL subframe of the second cell, wherein the first cell is a secondary cell and the second cell is a primary cell, wherein if a combination of the first TDD UL-DL configuration and the second TDD UL-DL configuration corresponds to one of following combinations: then a relation between the DL subframe of the first cell and the UL subframe of the second cell is given by a third TDD UL-DL configuration different from the first TDD UL-DL configuration and the second TDD UL-DL configuration, the third TDD UL-DL configuration having a smallest number of DL subframes among one or more TDD UL-DL configurations having DL subframes located in a superset of DL positions of the first and second TDD UL-DL configurations.