US 11,743,891 B2
Method for transmitting/receiving data in wireless communication system, and device for supporting same
Hyunho Lee, Seoul (KR); and Kyuhwan Kwak, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Mar. 22, 2022, as Appl. No. 17/701,420.
Application 17/701,420 is a continuation of application No. 17/005,738, filed on Aug. 28, 2020, granted, now 11,343,837.
Application 17/005,738 is a continuation of application No. 16/649,896, granted, now 10,856,314, issued on Dec. 1, 2020, previously published as PCT/KR2019/005154, filed on Apr. 29, 2019.
Claims priority of provisional application 62/666,080, filed on May 2, 2018.
Prior Publication US 2022/0217747 A1, Jul. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/1268 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/0446 (2023.01); H04W 72/23 (2023.01)
CPC H04W 72/1268 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0051 (2013.01); H04L 27/2607 (2013.01); H04L 27/2613 (2013.01); H04W 72/0446 (2013.01); H04W 72/23 (2023.01)] 14 Claims
OG exemplary drawing
 
1. An apparatus configured to perform operations for a user equipment (UE), the apparatus comprising:
at least one processor; and
at least one memory operably connected to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
receiving first downlink control information (DCI) for scheduling a Physical Uplink Shared Channel (PUSCH) in an n-th transmission time unit, wherein the first DCI comprises a first DMRS pattern field of 2 bits that indicates a demodulation reference signal (DMRS) transmission in an initial symbol of an (n+k)-th transmission time unit,
receiving second DCI for scheduling the PUSCH in the (n+k)-th transmission time unit, where k is an integer greater than or equal to 1, and wherein the second DCI includes a second DMRS pattern field of 2 bits,
wherein the first DCI further comprises first information regarding at least one of a cyclic shift, an Interleaved Frequency Division Multiple Access (IFDMA) comb, resource allocation, precoding, or a number of layers,
based on the second DMRS pattern field in the second DCI not indicating any DMRS transmission in the initial symbol of the (n+k)-th transmission time unit:
discarding the second DCI, and
based on the second DMRS pattern field in the second DCI indicating the DMRS transmission in the initial symbol of the (n+k)-th transmission time unit, with the second DCI further comprising second information regarding at least one of a cyclic shift, an IFDMA comb, resource allocation, precoding, or a number of layers:
based on the first information in the first DCI being inconsistent with the second information in the second DCI:
discarding the second DCI.