Method for transmitting/receiving signal and device therefor

摘要

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and transmitting reception response information on the data through a UL subframe of the second cell, wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set in a specific TDD UL-DL configuration, which is the TDD UL-DL configuration having the least number of DL subframes from TDD UL-DL configuration(s), in which subframes set as a DL in the first or second cell are all set as DLs.

主权项

1. A method for transmitting an uplink signal by a mobile terminal in a wireless communication system supporting carrier aggregation, the method comprising:
configuring 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 data through a DL subframe of the first cell; and transmitting acknowledgement information on the data through a UL subframe of the second 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:
TDD UL-DL configuration #1 and TDD UL-DL configuration #3,TDD UL-DL configuration #2 and TDD UL-DL configuration #3, andTDD UL-DL configuration #2 and TDD UL-DL configuration #4, then a relation between the DL subframe of the first cell and the UL subframe of the second cell is given by a parameter set configured for a third TDD UL-DL configuration that has a smallest number of DL subframes among one or more TDD UL-DL configurations in which one or more subframes configured as DL in the first cell or the second cell are all configured as DL, wherein TDD UL-DL configurations are defined as follows:Uplink-downlinkSubframe numberconfiguration01234567890DSUUUDSUUU1DSUUDDSUUD2DSUDDDSUDD3DSUUUDDDDD4DSUUDDDDDD5DSUDDDDDDD6DSUUUDSUUD wherein D denotes a downlink subframe, S denotes a special subframe and U denotes an uplink subframe.