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US 12,587,246 B2Granted
Method and device for transmitting or receiving channel state information in wireless communication system
AssigneeLG Electronics Inc.
InventorsSeongwon Go, Hyungtae Kim, Jiwon Kang
Life of this patent
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Abstract
A method for reporting channel state information (CSI) by a terminal in a wireless communication system according to an embodiment of the present specification comprises the steps of: receiving configuration information related to channel state information (CSI): receiving a downlink reference signal (DL RS); calculating the CSI on the basis of the DL RS; and reporting the CSI. The CSI relates to group-based beam reporting, and a specific reference for the CSI reporting may be set for each group on the basis of the configuration information. The CSI includes information on one or more of DL RSs on the basis of the specific reference for each group.
Claims14
A method comprising:
- receiving, by a user equipment (UE), configuration information related to channel state information (CSI), wherein the CSI is related to group-based beam reporting;
- receiving, by the UE, downlink reference signals (DL RSs), wherein the DL RSs include at least one of a CSI-Reference Signal (CSI-RS) based on CSI-RS resources or a Synchronization Signal/Physical Broadcast Channel Block (SS/PBCH Block, SSB) based on SSB resources;
- computing, by the UE, at least one L1-Reference Signal Received Power (RSRP) based on a measurement of the DL RSs;
- and
- reporting, by the UE, the CSI including the least one L1-RSRP,
- wherein the CSI includes i) at least one CSI-RS Resource Indicator (CRI) or at least one SS/PBCH Block Resource Indicator (SSBRI) for each of one or more groups and ii) the at least one L1-RSRP of the at least one CRI or the at least one SSBRI for each of the one or more groups,
- wherein based on the configuration information, a group quantity is separately configured for each of the one or more groups,
- wherein the group quantity is related to one of predefined criteria, and the predefined criteria include at least one of i) a criterion based on a single transmission and reception point (TRP) and ii) a criterion based on a plurality of transmission and reception points (TRPs).
5 more elements
A user equipment (UE) comprising:
- one or more transceivers;
- one or more processors;
- and
- one or more memories operably connectable to the one or more processors and configured to store instructions set, when executed by the one or more processors, to allow the one or more processors to perform operations,
- wherein the operations include:
- receiving configuration information related to channel state information (CSI), wherein the CSI is related to group-based beam reporting;
- receiving downlink reference signals (DL RSs), wherein the DL RSs include at least one of a CSI-Reference Signal (CSI-RS) based on CSI-RS resources or a Synchronization Signal/Physical Broadcast Channel Block (SS/PBCH Block, SSB) based on SSB resources;
- computing at least one L1-Reference Signal Received Power (RSRP) based on a measurement of the DL RSs;
- and
- reporting the CSI including the least one L1-RSRP,
- wherein the CSI includes i) at least one CSI-RS Resource Indicator (CRI) or at least one SS/PBCH Block Resource Indicator (SSBRI) for each of one or more groups and ii) the at least one L1-Reference Signal Received Power (RSRP) value of the at least one CRI or the at least one SSBRI for each of the one or more groups,
- wherein, based on the configuration information, a group quantity is separately configured for each of the one or more groups,
- wherein the group quantity is related to one of predefined criteria, and the predefined criteria include at least one of i) a criterion based on a single transmission and reception point (TRP) and ii) a criterion based on a plurality of transmission and reception points (TRPs).
10 more elements
A base station comprising:
- one or more transceivers;
- one or more processors;
- and
- one or more memories operably connectable to the one or more processors and configured to store instructions set, when executed by the one or more processors, to allow the one or more processors to perform operations,
- wherein the operations include:
- transmitting configuration information related to channel state information (CSI), wherein the CSI is related to group-based beam reporting;
- transmitting downlink reference signals (DL RSs), wherein the DL RSs include at least one of a CSI-Reference Signal (CSI-RS) based on CSI-RS resources or a Synchronization Signal/Physical Broadcast Channel Block (SS/PBCH Block, SSB) based on SSB resources;
- and
- receiving the CSI including at least one L1-Reference Signal Received Power (RSRP) computed based on a measurement of the DL RSs,
- wherein the CSI includes i) at least one CSI-RS Resource Indicator (CRI) or at least one SS/PBCH Block Resource Indicator (SSBRI) for each of one or more groups and ii) the at least one L1-RSRP of the at least one CRI or the at least one SSBRI for each of the one or more groups,
- wherein, based on the configuration information, a group quantity is separately configured for each of the one or more groups,
- wherein the group quantity is related to one of predefined criteria, and the predefined criteria include at least one of i) a criterion based on a single transmission and reception point (TRP) and ii) a criterion based on a plurality of transmission and reception points (TRPs).
9 more elements
Dependencies are inferred from the claim text.