US Patent No. 11,071,130

METHOD FOR SUPPORTING PLURALITY OF TRANSMISSION TIME INTERVALS, PLURALITY OF SUBCARRIER INTERVALS OR PLURALITY OF PROCESSING TIMES IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR


Patent No. 11,071,130
Issue Date July 20, 2021
Title Method For Supporting Plurality Of Transmission Time Intervals, Plurality Of Subcarrier Intervals Or Plurality Of Processing Times In Wireless Communication System, And Device Therefor
Inventorship Hyunho Lee, Seoul (KR)
Yunjung Yi, Seoul (KR)
Daesung Hwang, Seoul (KR)
Assignee LG Electronics Inc., Seoul (KR)

Claim of US Patent No. 11,071,130


1. A method for transmitting Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) signal by a user equipment (UE) in a wireless communication system supporting a plurality of transmission time interval (TTI) lengths, the method comprising:receiving downlink data; and
transmitting a HARQ-ACK signal related to the downlink data,
wherein the HARQ-ACK signal is transmitted after a processing time from receiving the downlink data,
wherein, based on a downlink TTI length for the downlink data and an uplink TTI length for the HARQ-ACK signal being different;
the processing time is configured in units of at least one of the downlink TTI length and the uplink TTI length, and
based on a first transmission timing of an uplink control channel for HARQ-ACK signal and a second transmission timing of a 2-symbol short Physical Uplink Shared Channel (sPUSCH) overlapping;
based on the downlink TTI length being shorter than a predetermined length, the uplink control channel is transmitted and the 2-symbol sPUSCH is dropped, and
based on the downlink TTI length being equal to or longer than the predetermined length, the uplink control channel is dropped, the 2-symbol sPUSCH is transmitted and uplink control information (UCI) for the uplink control channel is piggybacked to the 2-symbol sPUSCH.