Systems and methods for processing time reduction signaling
A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to receive a configuration message of processing time reduction from an evolved node B (eNB). The instructions are also executable to determine a processing time value k for a physical downlink shared channel (PDSCH) transmission. The instructions are further executable to receive the PDSCH in subframe n−k. The instructions are additionally executable to transmit hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−k.
1. A user equipment (UE) comprising:
a processor; and
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
receive a configuration message including a short processing time configuration from a base station apparatus;
determine a processing time value k for a physical downlink shared channel (PDSCH) transmission operation based on the short processing time configuration, wherein in a case where the short processing time configuration does not configure a short processing time, k is 4, and in a case where the short processing time configuration configures the short processing time, k is smaller than 4;
receive the PDSCH in subframe n−k;
transmit hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−k, and
perform a PUSCH transmission operation based on the same short processing time configuration.
2. A base station apparatus, comprising:
a processor; and
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
send a configuration message including a short processing time configuration to a user equipment (UE),
determine a processing time value k for a physical downlink shared channel (PDSCH) transmission operation based on the short processing time configuration, wherein in a case where the short processing time configuration does not configure a short processing time, k is 4, and in a case where the short processing time configuration configures the short processing time, k is smaller than 4;
send the PDSCH in subframe n−k;
receive hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−k, and
perform a PUSCH transmission operation based on the same short processing time configuration.
3. A method of a user equipment (UE), the method comprising:
receiving a configuration message including a short processing time configuration from a base station apparatus;
determining a processing time value k for a physical downlink shared channel (PDSCH) transmission operation based on the short processing time configuration, wherein in a case where the short processing time configuration does not configure a short processing time, k is 4, and in a case where the short processing time configuration configures the short processing time, k is smaller than 4;
receiving the PDSCH in subframe n−k;
transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−k; and
performing a PUSCH transmission operation based on the same short processing time configuration.
4. A method of a base station apparatus, the method comprising:
sending a configuration message including a short processing time configuration to a user equipment (UE);
determining a processing time value k for a physical downlink shared channel (PDSCH) transmission operation based on the short processing time configuration, wherein in a case where the short processing time configuration does not configure a short processing time, k is 4, and in a case where the short processing time configuration configures the short processing time, k is smaller than 4;
sending the PDSCH in subframe n−k;
receiving hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−k; and
performing a PUSCH transmission operation based on the same short processing time configuration.