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1. (WO2018016794) CARRIER AGGREGATION WITH VARIABLE TRANSMISSION DURATIONS

Pub. No.:    WO/2018/016794    International Application No.:    PCT/KR2017/007458
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Thu Jul 13 01:59:59 CEST 2017
IPC: H04L 5/00
H04W 72/04
Applicants: SAMSUNG ELECTRONICS CO., LTD.
Inventors: PAPASAKELLARIOU, Aris
Title: CARRIER AGGREGATION WITH VARIABLE TRANSMISSION DURATIONS
Abstract:
A method of a user equipment (UE) for constructing a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook. The method comprises receiving physical downlink control channels (PDCCHs) that convey respective downlink control information (DCI) formats, wherein each DCI format includes a counter field and a slot offset field, receiving physical downlink data channels (PDSCHs) that convey data transport blocks, detecting the DCI formats configuring the received PDSCHs, determining locations for HARQ-ACK bits in a HARQ-ACK codebook based on a value of the slot offset field and a value of the counter field in each detected DCI format, determining a time unit for transmission of the HARQ-ACK codebook based on a value of the slot offset field in each detected DCI format, and transmitting the HARQ-ACK codebook.