Mapping methods for URLLC HARQ-ACK multiplexing on eMBB PUSCH
A user equipment (UE) is described. The UE a higher layer processor configured to determine an ultra-reliable low-latency communication (URLLC) uplink control information (UCI) multiplexing starting symbol on an enhanced mobile broadband (eMBB) physical uplink shared channel (PUSCH). The higher layer processor is also configured to determine a resource element (RE) mapping for URLLC UCI multiplexing on the eMBB PUSCH from the UCI multiplexing starting symbol. The UE also includes transmitting circuitry configured to perform multiplexing of the URLLC UCI on the eMBB PUSCH based on the RE mapping.
1. A user equipment (UE), comprising:
a higher layer processor configured to
determine an ultra-reliable low-latency communication (URLLC) uplink control information (UCI) multiplexing starting symbol on an enhanced mobile broadband (eMBB) physical uplink shared channel (PUSCH), and
determine a resource element (RE) mapping for a URLLC UCI multiplexing on the eMBB PUSCH from the UCI multiplexing starting symbol; and
transmitting circuitry configured to perform multiplexing of the URLLC UCI on the eMBB PUSCH based on the RE mapping, wherein:
the transmitting circuitry is further configured to perform a first multiplexing in which, for UCI multiplexing of a URLLC Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) with less than or equal to 2 bits on the eMBB PUSCH, a HARQ-ACK up to 2 bits is multiplexed on the eMBB PUSCH by puncturing the eMBB PUSCH from the determined UCI multiplexing starting symbol,
the transmitting circuitry is further configured to perform a second multiplexing in which, for UCI multiplexing of the URLLC HARQ-ACK with less than or equal to 2 bits on the eMBB PUSCH, the HARQ-ACK up to 2 bits is multiplexed with a physical uplink control channel (PUCCH) sequence at a resource block (RB) level from the determined UCI multiplexing starting symbol, and
the higher layer processor is further configured to determine the first multiplexing or the second multiplexing based on a distance between a HARQ-ACK multiplexing starting symbol and a corresponding demodulation reference symbol (DMRS).
2. A base station (gNB), comprising:
a higher layer processor configured to
determine an ultra-reliable low latency communication (URLLC) uplink control information (UCI) multiplexing starting symbol on an enhanced mobile broadband (eMBB) physical uplink shared channel (PUSCH), and
determine a resource element (RE) mapping for a URLLC UCI multiplexing on the eMBB PUSCH from the UCI multiplexing starting symbol; and
receiving circuitry configured to receive multiplexing of the URLLC UCI on the eMBB PUSCH based on the RE mapping, wherein:
the receiving circuitry is further configured to receive a first multiplexing in which, for UCI multiplexing of a URLLC Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) with less than or equal to 2 bits on the eMBB PUSCH, a HARQ-ACK up to 2 bits is multiplexed on the eMBB PUSCH by puncturing the eMBB PUSCH from the determined UCI multiplexing starting symbol,
the receiving circuitry is further configured to receive a second multiplexing in which, for UCI multiplexing of the URLLC HARQ-ACK with less than or equal to 2 bits on the eMBB PUSCH, the HARQ-ACK up to 2 bits is multiplexed with a physical uplink control channel (PUCCH) sequence at a resource block (RB) level from the determined UCI multiplexing starting symbol, and
the higher layer processor is further configured to determine the first multiplexing or the second multiplexing based on a distance between a HARQ-ACK multiplexing starting symbol and a corresponding demodulation reference symbol (DMRS).
3. A method performed by a user equipment (UE), the method comprising:
determining an ultra-reliable low latency communication (URLLC) uplink control information (UCI) multiplexing starting symbol on an enhanced mobile broadband (eMBB) physical uplink shared channel (PUSCH);
determining a resource element (RE) mapping for a URLLC UCI multiplexing on the eMBB PUSCH from the UCI multiplexing starting symbol;
determining a first multiplexing or a second multiplexing based on a distance between a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) multiplexing starting symbol and a corresponding demodulation reference symbol (DMRS); and
performing multiplexing of the URLLC UCI on the eMBB PUSCH based on the RE mapping, wherein
the performing multiplexing of the URLLC UCI includes
performing the first multiplexing in which, for UCI multiplexing of a URLLC HARQ-ACK with less than or equal to 2 bits on the eMBB PUSCH, a HARQ-ACK up to 2 bits is multiplexed on the eMBB PUSCH by puncturing the eMBB PUSCH from the determined UCI multiplexing starting symbol, or
performing the second multiplexing in which, for UCI multiplexing of the URLLC HARQ-ACK with less than or equal to 2 bits on the eMBB PUSCH, the HARQ-ACK up to 2 bits is multiplexed with a physical uplink control channel (PUCCH) sequence at a resource block (RB) level from the determined UCI multiplexing starting symbol.