User equipments, base stations and methods

An evolved node B (eNB) comprising:

• a physical downlink control channel (PDCCH) transmitter configured to transmit a PDCCH with a downlink control information (DCI) format, the PDCCH scheduling a first physical uplink shared channel (PUSCH) in subframe n and a second PUSCH in subframe n+1, the DCI format including an information field for indicating that a starting position of the first PUSCH is later than an initial boundary of an initial symbol of the subframe n;
• and
• a PUSCH receiver configured to attempt to receive the first PUSCH, wherein
• the PUSCH receiver is further configured to, in a case when the first PUSCH is not received, attempt to receive the second PUSCH, and
• a starting position of the second PUSCH is an initial boundary of an initial symbol of the subframe n+1.

A method for a user equipment (UE), the method comprising:

• receiving a physical downlink control channel (PDCCH) with a downlink control information (DCI) format, the PDCCH scheduling a first physical uplink shared channel (PUSCH) in subframe n and a second PUSCH in subframe n+1, the DCI format including an information field for indicating that a starting position of the first PUSCH is later than an initial boundary of an initial symbol of the subframe n;
• performing a first channel access before the first PUSCH;
• and
• transmitting the first PUSCH and the second PUSCH, in a case when the first channel access is successful, wherein
• in a case when the first channel access is not successful, a second channel access is performed before the second PUSCH,
• in a case when the second channel access is successful, the second PUSCH is transmitted, and
• a starting position of the second PUSCH is an initial boundary of an initial symbol of the subframe n+1.

A method for an evolved node B (eNB), the method comprising:

• transmitting a physical downlink control channel (PDCCH) with a downlink control information (DCI) format, the PDCCH scheduling a first physical uplink shared channel (PUSCH) in subframe n and a second PUSCH in subframe n+1, the DCI format including an information field for indicating that a starting position of the first PUSCH is later than an initial boundary of an initial symbol of the subframe n;
• and
• attempting to receive the first PUSCH, wherein
• in a case when the first PUSCH is not received, the eNB attempts to receive the second PUSCH, and
• a starting position of the second PUSCH is an initial boundary of an initial symbol of the subframe n+1.