Transmission of UL control channels with dynamic structures
A method of a user equipment (UE) for transmitting acknowledgement information. The method comprises receiving a physical downlink control channel conveying a downlink control information (DCI) format, a physical downlink shared channel conveying one or more data transport blocks scheduled by the DCI format, and configuration information for transmission of a physical uplink control channel (PUCCH) conveying acknowledgement information in response to the reception of the one or more data transport blocks; and transmitting the PUCCH in time-frequency resources within a first slot. An index of the first slot is configured by the DCI format. The time-frequency resources within the first slot are configured by the DCI format through a configuration of an index of a first symbol, a number of consecutive slot symbols, and an index of a first frequency resource block.
1. A user equipment (UE), comprising:
a receiver configured to receive a physical downlink shared channel (PDSCH) providing a transport block; and
a transmitter configured to transmit a physical uplink control channel (PUCCH) with acknowledgement information in response to receiving the transport block, wherein the PUCCH transmission is over a number N symbols slot of consecutive symbols and comprises of a reference signal and a signal with the acknowledgement information in an alternating manner per symbol over the number of consecutive symbols.
2. The UE of claim 1 , wherein:
the receiver is further configured to receive a physical downlink control channel (PDCCH) providing a downlink control information (DCI) format, wherein the DCI format schedules the PDSCH reception; and
the transmitter is further configured to transmit the PUCCH within a first slot, wherein an index of the first slot is indicated by a field of the DCI format.
3. The UE of claim 2 , wherein:
the receiver is further configured to receive a configuration for a set of resources; and
the transmitter is further configured to transmit the PUCCH according to a resource from the set of resources, wherein the resource is indicated by a field in the DCI format.
4. The UE of claim 1 , wherein:
the transmitter is further configured to transmit the PUCCH within a second slot, and
an index of a first symbol and the number N symbols slot of consecutive symbols for the PUCCH transmission are same within a first slot and within the second slot.
5. The UE of claim 1 , wherein:
the transmitter is further configured to transmit the PUCCH over two different parts of a bandwidth, and
the number N symbols slot of consecutive symbols in a first part of the bandwidth is ┌N symbols slot /2┐ where ┌ ┐ is a ceiling function that rounds a number to next larger integer.
6. The UE of claim 1 , wherein:
the receiver is further configured to receive an indication of a cyclic shift for a sequence; and
the transmitter is further configured to transmit the sequence with the cyclic shift in at least one symbol from the number N symbols slot of consecutive symbols.
7. The UE of claim 6 , wherein:
the transmitter transmits the reference signal by transmitting the sequence, and
the transmitter transmits the signal with the acknowledgment information by transmitting the sequence that is modulated with the acknowledgement information.
8. A base station, comprising:
a transmitter configured to transmit a physical downlink shared channel (PDSCH) providing a transport block; and
a receiver configured to receive a physical uplink control channel (PUCCH) with acknowledgement information in response to transmitting the transport block, wherein the PUCCH reception is over a number N symbols slot of consecutive symbols and comprises of a reference signal and a signal with the acknowledgement information in an alternating manner per symbol over the number of consecutive symbols.
9. The base station of claim 8 , wherein:
the transmitter is further configured to transmit a physical downlink control channel (PDCCH) providing a downlink control information (DCI) format, wherein the DCI format schedules the PDSCH transmission; and
the receiver is further configured to receive the PUCCH within a first slot, wherein an index of the first slot is indicated by a field of the DCI format.
10. The base station of claim 9 , wherein:
the transmitter is further configured to transmit a configuration for a set of resources; and
the receiver is further configured to receive the PUCCH according to a resource from the set of resources, wherein the resource is indicated by a field in the DCI format.
11. The base station of claim 8 , wherein:
the receiver is further configured to receive the PUCCH within a second slot, and
an index of a first symbol and the number N symbols slot of consecutive symbols for the PUCCH reception are same within a first slot and within the second slot.
12. The base station of claim 8 , wherein:
the receiver is further configured to receive the PUCCH over two different parts of a bandwidth, and
the number N symbols slot of consecutive symbols in a first part of the bandwidth is ┌N symbols slot /2┐ where ┌ ┐ is a ceiling function that rounds a number to next larger integer.
13. The base station of claim 8 , wherein:
the transmitter is further configured to transmit an indication of a cyclic shift for a sequence; and
the receiver is further configured to receive the sequence with the cyclic shift in at least one symbol from the number N symbols slot of consecutive symbols.
14. The base station of claim 13 , wherein:
the receiver receives the reference signal by receiving the sequence, and
the receiver receives the signal with the acknowledgment information by receiving the sequence that is modulated with the acknowledgement information.
15. A method for transmitting a physical uplink control channel (PUCCH), the method comprising:
receiving a physical downlink shared channel (PDSCH) providing a transport block; and
transmitting the PUCCH with acknowledgement information in response to receiving the transport block, wherein the PUCCH transmission is over a number N symbols slot of consecutive symbols and comprises of a reference signal and a signal with the acknowledgement information in an alternating manner per symbol over the number of consecutive symbols.
16. The method of claim 15 , further comprising:
receiving a physical downlink control channel (PDCCH) providing a downlink control information (DCI) format, wherein the DCI format schedules the PDSCH reception; and
transmitting the PUCCH within a first slot, wherein an index of the first slot is indicated by a field of the DCI format.
17. The method of claim 16 , further comprising:
receiving a configuration for a set of resources; and
transmitting the PUCCH according to a resource from the set of resources, wherein the resource is indicated by a field in the DCI format.
18. The method of claim 15 , further comprising:
transmitting the PUCCH within a second slot, and
an index of a first symbol and the number N symbols slot of consecutive symbols for the PUCCH transmission are same within a first slot and within the second slot.
19. The method of claim 15 , further comprising:
transmitting the PUCCH over two different parts of a bandwidth, and
the number N symbols slot of consecutive symbols in a first part of the bandwidth is ┌N symbols slot /2┐ where ┌ ┐ is a ceiling function that rounds a number to next larger integer.
20. The method of claim 15 , further comprising:
receiving an indication of a cyclic shift for a sequence; and
transmitting the sequence with the cyclic shift in at least one symbol from the number N symbols slot of consecutive symbols.