METHODS FOR TRANSMITTING AND RECEIVING HYBRID AUTOMATIC RETRANSMIT REQUEST-ACKNOWLEDGMENT (HARQ-ACK) INDEX MAPPING AND UPLINK RESOURCE ALLOCATION FOR CHANNEL SELECTION TRANSMISSION IN INTER-BAND TIME DIVISION DUPLEX MODE, USER EQUIPMENT TO TRANSMIT HARQ-ACK, AND eNODE-B TO RECEIVE HARQ-ACK

Abstract

Hybrid Automatic Retransmit ReQuest-Acknowledgment (HARQ-ACK) index mapping and uplink resource allocation is performed and controlled for channel selection transmission. A method for transmitting HARQ-ACK information to an eNode-B (eNB) by a User Equipment (UE) includes identifying KPCell as a number of downlink subframe(s) of a PCell associated with an uplink subframe and identifying KSCell as a number of downlink subframe(s) of an SCell associated with the uplink subframe; generating Discontinuous Transmission (DTX) response information for a cell having a smaller number of downlink subframes between the PCell and the SCell; generating HARQ-ACK information including the generated DTX response information and response information on data received by the UE from the eNB; and transmitting the generated HARQ-ACK information to the eNB through the uplink subframe.

1 .- 15 . (canceled) 
     
     
         16 . A method for transmitting Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK), the method comprising:
 setting N pieces of HARQ-ACK to Discontinuous Transmission (DTX) for a cell, based on a difference between KPCeli and KSCell, the difference being associated with the number N, the number N being an integer greater than one;   generating the HAJZQ-ACK comprising the N pieces of HARQ-ACK set to DTX, the HARQ-ACK being responsive to data received from a base station (BS); and   transmitting, to the BS, the HARQ-ACK.   
     
     
         17 . A User Equipment (UE) to transmit Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK), the UE comprising:
 a controller to set N pieces of HARQ-ACK to Discontinuous Transmission (DTX) for a cell, based on a difference between KPCeli and KSCell, the difference being associated with the number N, and to generate the HARQ-ACK comprising the N pieces of HARQ-ACK set to DTX, the HARQ-ACK being responsive to data received from a base station (BS), the number N being an integer greater than one; and   a transmitter to transmit, to the BS, the response.