Terminal device, base station device, integrated circuit, and communication method

Abstract

A terminal device receives a control channel including a DCI format and transmits a PUSCH, in which the DCI format includes an uplink index and information for indicating a HARQ process number; when both a first bit and a second bit of the uplink index are set to 1, the HARQ process number in the PUSCH corresponding to the first bit is X and the HARQ process number in the PUSCH corresponding to the second bit is mod (X+1, Z); the mod (X+1, Z) is a function outputting a remainder when dividing (X+1) by Z; the X is determined based on the information for indicating the HARQ process number; and the Z is a value identical to a maximum number of HARQ processes in a serving cell determined by an uplink/downlink configuration.

1 . A terminal device comprising:
 reception circuitry configured to and/or programmed to receive a control channel including a downlink control information (DCI) format; and   transmission circuitry configured to and/or programmed to transmit a first physical uplink shared channel (PUSCH) in a first subframe and a second PUSCH in a second subframe, wherein   the DCI format includes information for indicating a hybrid automatic repeat request (HARQ) process number, the HARQ process number of the second PUSCH is mod (X+1, Z), the X is determined based on the information for indicating the HARQ process number.   
     
     
         2 . The terminal device according to  claim 1 , wherein
 the Z is a value identical to a number of HARQ processes in a serving cell.   
     
     
         3 . A base station device comprising:
 transmission circuitry configured to and/or programmed to transmit a control channel including a downlink control information (DCI) format; and   reception circuitry configured to and/or programmed to receive a first physical uplink shared channel (PUSCH) in a first subframe and a second PUSCH in a second subframe, wherein   the DCI format includes information for indicating a hybrid automatic repeat request (HARQ) process number, the HARQ process number of the second PUSCH is mod (X+1, Z), the X is determined based on the information for indicating the HARQ process number.   
     
     
         4 . The base station device according to  claim 3 , wherein
 the Z is a value identical to a number of HARQ processes in a serving cell.   
     
     
         5 . A communication method for a terminal device, the communication method comprising:
 receiving a control channel including a downlink control information (DCI) format; and   transmitting a first physical uplink shared channel (PUSCH) in a first subframe and a second PUSCH in a second subframe, wherein   the DCI format includes information for indicating a hybrid automatic repeat request (HARQ) process number, the HARQ process number of the second PUSCH is mod (X+1, Z), the X is determined based on the information for indicating the HARQ process number.   
     
     
         6 . A communication method for a base station device, the communication method comprising:
 transmitting a control channel including a downlink control information (DCI) format; and   receiving a first physical uplink shared channel (PUSCH) in a first subframe and a second PUSCH in a second subframe, wherein   the DCI format includes information for indicating a hybrid automatic repeat request (HARQ) process number, the HARQ process number of the second PUSCH is mod (X+1, Z), the X is determined based on the information for indicating the HARQ process number.