Scheduling uplink transmissions

1. A user equipment (UE), comprising:

a receiver configured to receive a downlink control information (DCI) format that configures transmissions of a number of physical uplink data channels (PUSCHs) over a number of subframes up to a predetermined maximum number of N SF subframes, wherein the DCI format includes:

a number of subframes field that is represented by ┌ log 2 (N SF )┐ bits and indicates a number n SF ≤N SF of subframes for n SF PUSCH transmissions,

a timing offset field that includes a timing offset o i for a subframe of a first of the PUSCH transmissions that is determined as n+k+o i , wherein n is a subframe of the DCI format reception and k is a minimum number of subframes for a PUSCH transmission after the DCI format reception,

a hybrid automatic repeat request (HARQ) process number field that is represented by ┌ log 2 (N HARQ )┐ bits and indicates a HARQ process number n HARQ from a total of N HARQ HARQ processes, wherein HARQ process number n HARQ applies for the first PUSCH transmission, HARQ process number (n HARQ +j−1)mod N HARQ applies for a j-th of the PUSCH transmissions, and 1≤j≤n SF , and

a new data indicator (NDI) field that is represented by N SF bits and indicates whether a PUSCH transmission, from the n SF PUSCH transmissions, conveys a new data transport block (TB) or a retransmission of a data TB; and

a transmitter configured to transmit the n SF PUSCH transmissions over the n SF subframes,

wherein is a ceiling function that rounds a number to its immediately next larger integer and log 2 (x) is a logarithm function with base 2 for a number x.

2. The UE of claim 1 , wherein:

a PUSCH transmission is over a maximum number of M 1 interlaces wherein an interlace has an index m 1 , 0≤m 1 ≤M 1 , and includes a number of equidistant non-contiguous resource blocks of a system bandwidth, and

the DCI format includes a resource allocation field that is represented by ┌ log 2 (M 1 ·(M 1 +1)/2)┐ bits and assigns to a PUSCH transmission either a number of consecutive interlace indexes or a combination of interlace indexes from a predetermined set of combinations of interlace indexes.

3. The UE of claim 1 , wherein:

the DCI format includes a redundancy version field that is represented by a number of bits, and

the number of bits is smaller than a second number of bits that represents a redundancy version field included in a second DCI format that schedules a PUSCH transmission over a single subframe.

4. The UE of claim 1 , wherein:

the DCI format includes a transmission power control (TPC) command field that adjusts a PUSCH transmission power, and

the same power adjustment applies to all n SF PUSCH transmissions.

5. The UE of claim 1 , wherein:

the DCI format includes a channel state information (CSI) request field that indicates a transmission of a CSI report, and

the CSI report is multiplexed in the first PUSCH transmission.

6. The UE of claim 1 , wherein:

the DCI format includes a channel state information (CSI) request field that indicates a transmission of one or more CSI reports, and

a PUSCH that includes a CSI report is transmitted with larger power than a PUSCH that does not include a CSI report.

7. The UE of claim 1 , wherein the DCI format includes a flag field indicating whether the fields of the DCI format correspond to either scheduling a PUSCH transmission over a single subframe or to scheduling multiple PUSCH transmissions over respective multiple subframes.

8. A base station, comprising:

a transmitter configured to transmit a downlink control information (DCI) format that configures transmission of a number of physical uplink data channels (PUSCHs) over a number of subframes up to a predetermined maximum number of N SF subframes, wherein the DCI format includes:

a number of subframes field that is represented by ┌ log 2 (N SF )┐ bits and indicates a number n SF ≤N SF of subframes for n SF PUSCH transmissions,

a timing offset field that includes a timing offset o i for a subframe of a first of the PUSCH transmissions that is determined as n+k+o i , wherein n is a subframe of the DCI format reception and k is a minimum number of subframes for a PUSCH transmission after the DCI format transmission,

a hybrid automatic repeat request (HARQ) process number field that is represented by ┌ log 2 (N HARQ )┐ bits and indicates a HARQ process number n HARQ from a total of N HARQ HARQ processes, wherein HARQ process number n HARQ applies for the first PUSCH transmission, HARQ process number (n HARQ +j−1)mod N HARQ applies for a j-th of the PUSCH transmissions, and 1≤j≤n SF , and

a new data indicator (NDI) field that is represented by N SF bits and indicates whether a PUSCH transmission, from the n SF PUSCH transmissions, conveys a new data transport block (TB) or a retransmission of a data TB; and

a receiver configured to receive the n SF PUSCH transmissions over the n SF subframes,

wherein is a ceiling function that rounds a number to its immediately next larger integer and log 2 (x) is a logarithm function with base 2 for a number x.

9. The base station of claim 8 , wherein

a PUSCH transmission is over a maximum number of M 1 interlaces wherein an interlace has an index m 1 , 0≤m 1 ≤M 1 , and includes a number of equidistant non-contiguous resource blocks of a system bandwidth, and

the DCI format includes a resource allocation field that is represented by ┌ log 2 (M 1 ·(M 1 +1)/2)┐ bits and assigns to a PUSCH transmission either a number of consecutive interlace indexes or a combination of interlace indexes from a predetermined set of combinations of interlace indexes.

10. The base station of claim 8 , wherein

the DCI format includes a redundancy version field that is represented by a number of bits, and

the number of bits is smaller than a second number of bits that represents a redundancy version field included in a second DCI format that schedules a PUSCH transmission over a single subframe.

11. The base station of claim 8 , wherein

the DCI format includes a channel state information (CSI) request field that indicates a transmission of a CSI report, and

the CSI report is multiplexed in the first PUSCH transmission.

12. A user equipment (UE), comprising:

a receiver configured to receive:

a first downlink control information (DCI) format in a subframe having a first index that configures parameters for a transmission of a channel, and

a second DCI format in a subframe having a second index that triggers the transmission of the channel; and

a transmitter configured to transmit the channel in a subframe having a third index,

wherein the second DCI format indicates a configuration for a subframe that includes a number of symbols, and

wherein a first number consecutive subframe symbols supports reception of signals and a second number of last consecutive subframe symbols supports transmission of signals.

13. The UE of claim 12 , wherein the channel is a physical random access channel or a physical uplink data channel.

14. A user equipment (UE), comprising:

a receiver configured to receive:

a first downlink control information (DCI) format in a subframe having a first index that configures parameters for a transmission of a channel, and

a second DCI format in a subframe having a second index that triggers the transmission of the channel; and

a transmitter configured to transmit the channel in a subframe having a third index,

wherein the second DCI format indicates an offset, and

wherein the index of the third subframe is determined as a sum of the index of the second subframe and the offset.

15. The UE of claim 14 , wherein the offset has a smaller value than a difference between a fifth subframe index of the channel transmission and a fourth subframe index of transmission of the first DCI format when the first DCI format also triggers the channel transmission.

16. A base station, comprising:

a transmitter configured to transmit:

a first downlink control information (DCI) format in a subframe having a first index that configures parameters for a reception of a channel, and

a second DCI format in a subframe having a second index that triggers the reception of the channel; and

a receiver configured to receive the channel in a subframe having a third index,

wherein the second DCI format indicates a configuration for a subframe that includes a number of symbols, and

wherein a first number consecutive subframe symbols supports transmission of signals and a second number of last consecutive subframe symbols supports reception of signals.

17. The base station of claim 16 , wherein the channel is a physical random access channel or a physical uplink data channel.

18. A base station, comprising:

a transmitter configured to transmit:

a first downlink control information (DCI) format in a subframe having a first index that configures parameters for a reception of a channel, and

a second DCI format in a subframe having a second index that triggers the reception of the channel; and

a receiver configured to receive the channel in a subframe having a third index,

wherein the second DCI format indicates an offset, and

wherein the index of the third subframe is determined as a sum of the index of the second subframe and the offset.