User terminal, radio base station and radio communication method

Abstract

The present invention is designed to control the transmission and reception of signals adequately in future radio communication systems. A user terminal, which communicates by using first subframe for DL communication and second subframe for UL transmission and/or DL transmission that are configured between the first subframe configured in a given periodicity, has a receiving section that receives a first downlink control channel transmitted in the first subframe and a second downlink control channel transmitted in the second subframe, and a control section that controls transmission and reception of signals based on the first downlink control channel and/or the second downlink control channel, and the first downlink control channel and the second downlink control channel schedule at least different signals.

1 . A user terminal that communicates by using first subframe for DL communication and second subframe for UL transmission and/or DL transmission that are configured between the first subframe configured in a given periodicity, the user terminal comprising:
 a receiving section that receives a first downlink control channel transmitted in the first subframe and a second downlink control channel transmitted in the second subframe; and   a control section that controls transmission and reception of signals based on the first downlink control channel and/or the second downlink control channel,   wherein the first downlink control channel and the second downlink control channel schedule at least different signals.   
     
     
         2 . The user terminal according to  claim 1 , wherein the receiving section receives the first downlink control channel in the first subframe based at least on user-common information, and receives the second downlink control channel in the second subframe based on user-specific information. 
     
     
         3 . The user terminal according to  claim 1 , wherein the control section controls reception of broadcast information scheduled in the first subframe or the second subframe based on the first downlink control channel. 
     
     
         4 . The user terminal according to  claim 1 , wherein, when information about a subframe for UL communication is included in downlink control information transmitted in the first downlink control channel, the control section controls transmission of a random access preamble and/or UL data in the subframe for UL communication. 
     
     
         5 . A radio base station that communicates by using first subframe for DL communication and second subframe for UL communication and/or DL communication that are configured between the first subframe configured in a given periodicity, the radio base station comprising:
 a transmission section that transmits a first downlink control channel in the first subframe and transmits a second downlink control channel in the second subframe; and   a control section that controls scheduling of DL signals using the first downlink control channel, and controls reception of the DL signals and/or transmission of UL signals using the second downlink control channel,   wherein the first downlink control channel and the second downlink control channel schedule at least different signals and/or channels.   
     
     
         6 . A radio communication method for a user terminal that communicates by using first subframe for DL communication and second subframe for UL communication and/or DL communication that are configured between the first subframe configured in a given periodicity, the radio communication method comprising:
 receiving a first downlink control channel transmitted in the first subframe and a second downlink control channel transmitted in the second subframe; and   controlling transmission and reception of signals based on the first downlink control channel and/or the second downlink control channel,   wherein the first downlink control channel and the second downlink control channel schedule at least different signals.   
     
     
         7 . The user terminal according to  claim 2 , wherein the control section controls reception of broadcast information scheduled in the first subframe or the second subframe based on the first downlink control channel. 
     
     
         8 . The user terminal according to  claim 2 , wherein, when information about a subframe for UL communication is included in downlink control information transmitted in the first downlink control channel, the control section controls transmission of a random access preamble and/or UL data in the subframe for UL communication. 
     
     
         9 . The user terminal according to  claim 3 , wherein, when information about a subframe for UL communication is included in downlink control information transmitted in the first downlink control channel, the control section controls transmission of a random access preamble and/or UL data in the subframe for UL communication.