US 12,081,478 B2
Transmitting channel state information reference signals in new radio
Yu Zhang, San Diego, CA (US); Alexandros Manolakos, Escondido, CA (US); Tao Luo, San Diego, CA (US); and June Namgoong, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 6, 2023, as Appl. No. 18/330,050.
Application 18/330,050 is a continuation of application No. 16/466,697, granted, now 11,716,184, previously published as PCT/CN2017/114342, filed on Dec. 2, 2017.
Claims priority of application No. PCT/CN2016/108346 (WO), filed on Dec. 2, 2016.
Prior Publication US 2023/0403113 A1, Dec. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04L 1/18 (2023.01)
CPC H04L 5/005 (2013.01) [H04L 1/18 (2013.01); H04L 5/0007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for wireless communications in a user equipment, comprising:
a processor configured to:
receive an indication of a configuration of channel state information reference signals (CSI-RSs) from a transmission reception point (TRP), wherein the configuration indicates a set of resource elements (REs) to be used for CSI-RSs and a first mapping of CSI-RS ports to the set of REs, wherein the configuration further indicates the orthogonal cover codes (OCCs) used for transmitting the CSI-RSs,
wherein the set of REs comprises one or more RE groups, wherein a RE group of the one or more RE groups comprises two or more localized REs within one orthogonal frequency division multiplexing (OFDM) symbol, wherein the two or more localized REs are adjacent to each other in the frequency domain, and
wherein the mapped CSI-RS ports are separated by orthogonal cover codes (OCCs) applied to the one or more RE groups in frequency domain only;
process CSI-RSs based on the indicated configuration to determine channel state information, wherein the configuration indicates a combination of one OFDM symbol CSI-RSs with a first numerology having a first subcarrier spacing and two OFDM symbols CSI-RSs with a second numerology having a second subcarrier spacing; and
report the channel state information to the TRP; and
a memory coupled with the processor.