SYSTEMS AND METHODS FOR PROCESSING TIME REDUCTION SIGNALING

• US 20180020335A1
• Filed: 07/14/2017
• Published: 01/18/2018
• Est. Priority Date: 07/18/2016
• Status: Active Grant

• Current Assignee: FG Innovation Company Limited, Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yin, Zhanping, Nogami, Toshizo
• Granted Patent: US 10,595,166 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/6408 Unicasting
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/563 of the wireless resources

Abstract

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.

Claims

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 of processing time reduction from an evolved node B (eNB);

determine a processing time value k for a physical downlink shared channel (PDSCH) transmission;

receive the PDSCH in subframe n−

k; and

transmit hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−

k.

2. The UE of claim 1, wherein

in a case that a PDSCH transport block size is larger than a threshold value, the processing time value k is set as k₁,

in a case that a PDSCH transport block size is smaller than or equal to the threshold value, the processing time value k is set as k₂, and

k₂ is smaller than k₁.

3. The UE of claim 1, wherein

in a case that an information field of a PDSCH scheduling DCI format is set to “

0”

or no processing time reduction, the processing time value is k=4, and

in a case that the information field of a PDSCH scheduling DCI format is set to “

1”

or with processing time reduction, the processing time value is a configured reduced processing time k that is smaller than 4.

4. The UE of claim 1, wherein an information field of a PDSCH scheduling DCI format is used to set the processing time value k for the PDSCH.

5. An evolved node B (eNB), comprising:

a processor; and

memory in electronic communication with the processor, wherein instructions stored in the memory are executable to;

send a configuration message of processing time reduction to a user equipment (UE),

determine a processing time value k for a physical downlink shared channel (PDSCH) transmission;

send the PDSCH in subframe n−

k; and

receive hybrid automatic repeat request-acknowledgement (HARQ-ACK) in subframe n for the PDSCH transmission in subframe n−

k.

6. The eNB of claim 5, wherein

in a case that a PDSCH transport block size is larger than a threshold value, the processing time value k is set as k₁,

in a case that a PDSCH transport block size is smaller than or equal to the threshold value, the processing time value k is set as k₂, and

k₂ is smaller than k₁.

7. The eNB of claim 5, wherein

in a case that an information field of a PDSCH scheduling DCI format is set to “

0”

or no processing time reduction, the processing time value is k=4, and

in a case that the information field of a PDSCH scheduling DCI format is set to “

1”

or with processing time reduction, the processing time value is a configured reduced processing time k that is smaller than 4.

8. The eNB of claim 5, wherein an information field of a PDSCH scheduling DCI format is used to set the processing time value k for the PDSCH.

9. 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 of processing time reduction from an evolved node B (eNB);

determine a processing time value k for a physical uplink shared channel (PUSCH) transmission;

receive an uplink grant for the PUSCH in subframe n; and

transmit the PUSCH in subframe n+k.

10. The UE of claim 9, wherein

in a case that a PUSCH transport block size is larger than a threshold value, the processing time value is k₁,

in a case that a PUSCH transport block size is smaller than or equal to the threshold value, the processing time value is k₂, and

k₂ is smaller than k₁.

11. The UE of claim 9, wherein

in a case that an information field of a PUSCH scheduling DCI format is set to “

0”

or no processing time reduction, the processing time value is k=4, and

in a case that the information field of a PUSCH scheduling DCI format is set to “

1”

or with processing time reduction, the processing time value is a configured reduced processing time k that is smaller than 4.

12. The UE of claim 9, wherein an information field of a PUSCH scheduling DCI format is used to set the processing time value k for the PUSCH.

13. An evolved node B (eNB), comprising:

a processor; and

memory in electronic communication with the processor, wherein instructions stored in the memory are executable to;

send a configuration message of processing time reduction to a user equipment (UE);

determine a processing time value k for a physical uplink shared channel (PUSCH) transmission;

send an uplink grant for the PUSCH in subframe n; and

receive the PUSCH in subframe n+k.

14. The eNB of claim 13, wherein

in a case that a PUSCH transport block size is larger than a threshold value, the processing time value is k₁,

in a case that a PUSCH transport block size is smaller than or equal to the threshold value, the processing time value is k₂, and

k₂ is smaller than k₁.

15. The eNB of claim 13, wherein

in a case that an information field of a PUSCH scheduling DCI format is set to “

0”

or no processing time reduction, the processing time value is k=4, and

in a case that the information field of a PUSCH scheduling DCI format is set to “

1”

or with processing time reduction, the processing time value is a configured reduced processing time k that is smaller than 4.

16. The eNB of claim 13, wherein an information field of a PUSCH scheduling DCI format is used to set the processing time value k for the PUSCH.