US 12,309,752 B2
Method and apparatus for configuring DM-RS for V2X
Sung Jun Yoon, Seoul (KR)
Assigned to Innovative Technology Lab Co., Ltd., Seoul (KR)
Filed by Innovative Technology Lab Co., Ltd., Seoul (KR)
Filed on Apr. 23, 2024, as Appl. No. 18/643,405.
Application 18/643,405 is a continuation of application No. 18/162,686, filed on Jan. 31, 2023, granted, now 11,997,659.
Application 18/162,686 is a continuation of application No. 17/666,454, filed on Feb. 7, 2022, granted, now 11,601,938, issued on Mar. 7, 2023.
Application 17/666,454 is a continuation of application No. 16/879,071, filed on May 20, 2020, granted, now 11,284,392, issued on Mar. 22, 2022.
Application 16/879,071 is a continuation of application No. 16/039,973, filed on Jul. 19, 2018, granted, now 10,681,695, issued on Jun. 9, 2020.
Application 16/039,973 is a continuation of application No. 15/275,169, filed on Sep. 23, 2016, granted, now 10,057,900, issued on Aug. 21, 2018.
Claims priority of application No. 10-2015-0136017 (KR), filed on Sep. 25, 2015; application No. 10-2016-0058976 (KR), filed on May 13, 2016; and application No. 10-2016-0103277 (KR), filed on Aug. 12, 2016.
Prior Publication US 2024/0284420 A1, Aug. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/0446 (2023.01); H04J 13/00 (2011.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04W 72/0446 (2013.01) [H04J 13/0074 (2013.01); H04L 5/0012 (2013.01); H04L 5/005 (2013.01); H04L 5/0051 (2013.01); H04L 27/2613 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A base station comprising:
one or more antennas;
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station to:
transmit at least one configuration for demodulation-reference signal (DM-RS); and
cause a wireless user device to communicate a first DM-RS, a second DM-RS, a third DM-RS, and a fourth DM-RS,
wherein the first DM-RS in a first symbol in a first time resource is based on a first group-hopping associated with the first time resource;
wherein the second DM-RS in a second symbol in the first time resource is based on a second group-hopping associated with the first time resource and with an offset, and wherein the first group-hopping and the second group-hopping are configured to apply different inputs in a pseudo-random sequence;
wherein the third DM-RS in a third symbol in a second time resource is based on a third group-hopping associated with the second time resource; and
wherein the fourth DM-RS in a fourth symbol in the second time resource is based on a fourth group-hopping associated with the second time resource and with an offset, and wherein the third group-hopping and the fourth group-hopping are configured to apply different inputs in the pseudo-random sequence.