IP Library Granted Patent US 12,640,790
Granted Patent B2
US 12,640,790 · App. 18/154,767 · Granted May 26, 2026

Method and apparatus for reporting of time-domain channel properties

Inventors: Md. Saifur Rahman (Plano, TX); Eko Onggosanusi (Coppell, TX)
Assignee: Samsung Electronics Co., Ltd.
H04B7/0626H04B7/0632H04B7/0639
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Quick Facts
Patent No.
US 12,640,790
App. No.
18/154,767
Granted
May 26, 2026
Kind
B2
Abstract

Apparatuses and methods for reporting of time-domain channel properties are provided. A method for operating a user equipment (UE) includes receiving a configuration about a channel state information (CSI) report. The configuration including information about non-zero power (NZP) CSI-reference signal (RS) resources and a parameter reportQuantity set to a time-domain channel property (TDCP). The method further includes, based on the configuration, measuring the NZP CSI-RS resources and determining the TDCP based on the measurement. The method further includes transmitting the CSI report including an indicator indicating the TDCP.

Claims (46)

1 . A user equipment (UE) comprising:

a transceiver configured to receive, via higher layer signaling, a first configuration associated with a channel state information (CSI) report and a second configuration associated with non-zero power (NZP) CSI-reference signal (RS) resources, wherein the first configuration includes a parameter reportQuantity set to a time-domain channel property (TDCP); and

a processor operably coupled to the transceiver, the processor configured to:

perform measurement based on the NZP CSI-RS resources, and

determine the TDCP based on the measurement,

wherein the transceiver is further configured to transmit the CSI report including the determined TDCP,

wherein the NZP CSI-RS resources are included in S≥1 CSI-RS resource sets configured via the higher layer signaling, and

wherein the TDCP is a correlation corresponding to a time-domain measurement window associated with the NZP CSI-RS resources.

2 . The UE of claim 1 , wherein the NZP CSI-RS resources are configured as tracking RS (TRS) resources via a parameter trs-Info.

3 . The UE of claim 2 , wherein:

each of the S≥1 CSI-RS resource sets is configured with the parameter trs-Info, and

whether S is higher than 1 is subject to a UE capability report.

4 . The UE of claim 1 , wherein the TDCP corresponds to a Doppler spread of a downlink (DL) channel estimated based on the measurement.

5 . The UE of claim 1 , wherein the TDCP corresponds to a time-domain correlation of a downlink (DL) channel estimated based on the measurement.

6 . The UE of claim 1 , wherein the CSI report is a standalone report including only the TDCP.

7 . The UE of claim 1 , wherein the CSI report is a non-standalone report including at least one parameter from: a channel quality indicator (CQI), a CSI-RS resource indicator (CRI), a rank indicator (RI), a precoding matrix indicator (PMI), and layer indicator (LI).

8 . The UE of claim 1 , wherein the CSI report is an aperiodic report.

9 . A base station (BS) comprising:

a processor; and

a transceiver operably coupled to the processor, the transceiver configured to:

transmit, via higher layer signaling, a first configuration associated with a channel state information (CSI) report and a second configuration associated with non-zero power (NZP) CSI-reference signal (RS) resources, wherein the first configuration includes a parameter reportQuantity set to a time-domain channel property (TDCP);

transmit the NZP CSI-RS resources; and

receive the CSI report including the TDCP associated with the NZP CSI-RS resources,

wherein the NZP CSI-RS resources are included in S≥1 CSI-RS resource sets configured via the higher layer signaling, and

wherein the TDCP is a correlation corresponding to a time-domain measurement window associated with the NZP CSI-RS resources.

10 . The BS of claim 9 , wherein the NZP CSI-RS resources are configured as tracking RS (TRS) resources via a parameter trs-Info.

11 . The BS of claim 10 , wherein:

each of the S CSI-RS resource sets is configured with the parameter trs-Info, and

whether S is higher than 1 is subject to a UE capability report.

12 . The BS of claim 9 , wherein the TDCP corresponds to a Doppler spread of a downlink (DL) channel based on the NZP CSI-RS resources.

13 . The BS of claim 9 , wherein the TDCP corresponds to a time-domain correlation of a downlink (DL) channel based on the NZP CSI-RS resources.

14 . The BS of claim 9 , wherein the CSI report is a standalone report including only the TDCP.

15 . The BS of claim 9 , wherein the CSI report is a non-standalone report including at least one parameter from: a channel quality indicator (CQI), a CSI-RS resource indicator (CRI), a rank indicator (RI), a precoding matrix indicator (PMI), and layer indicator (LI).

16 . The BS of claim 9 , wherein the CSI report is an aperiodic report.

17 . A method for operating a user equipment (UE), the method comprising:

receiving, via higher layer signaling, a first configuration associated with a channel state information (CSI) report and a second configuration associated with non-zero power (NZP) CSI-reference signal (RS) resources, wherein the first configuration includes a parameter reportQuantity set to a time-domain channel property (TDCP);

perform measurement based on the NZP CSI-RS resources;

determining the TDCP based on the measurement; and

transmitting the CSI report including the determined TDCP,

wherein the NZP CSI-RS resources are included in S≥1 CSI-RS resource sets configured via the higher layer signaling, and

wherein the TDCP is a correlation corresponding to a time-domain measurement window associated with the NZP CSI-RS resources.

18 . The method of claim 17 , wherein the NZP CSI-RS resources are configured as tracking RS (TRS) resources via a parameter trs-Info.

19 . The method of claim 18 , wherein:

each of the S CSI-RS resource sets is configured with the parameter trs-Info, and

whether S is higher than 1 is subject to a UE capability report.

20 . The method of claim 17 , wherein the CSI report is: (i) a standalone report including only the TDCP or (ii) an aperiodic report.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2023
From: RAHMAN, MD. SAIFUR; ONGGOSANUSI, EKO
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 062377/0150 →
Continuity (3)
Provisional Application 63328605 · Apr 7, 2022
Provisional Application 63304408 · Jan 28, 2022
Related Publication 20230246687A1 · Aug 3, 2023
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