Method and apparatus for reporting of time-domain channel properties
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.
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.