Method and apparatus for resource selection for single and multiple transmit / receive point (TRP) channel state information (CSI) reporting

Abstract

The present disclosure provides systems, methods, and apparatus for wireless communications. In one aspect, a device such as a user equipment (UE) may receive a configuration including one or more CSI measurement resources associated with a channel state information (CSI) hypothesis set. The CSI hypothesis set may correspond to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both. The UE may select a first CSI measurement resource from one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set. The UE may select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set. Therefore, the UE may send a report based on a channel measurement or an interference measurement, or both.

Description

Technical Field

[0001] The present disclosure relates to wireless communications, and more particularly, to resource selection for single and multiple transmit / receive point (TRP) channel state information (CSI) reporting. Background Art

[0002] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (e.g., long term evolution (LTE) systems, improved LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM).

[0003] A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting communications for multiple communication devices (which may be otherwise referred to as user equipment (UE)). The UE may be configured to support beamformed communications via directional beams. For example, the UE may be configured with multiple antenna panels to support the beamformed communications. In some implementations, in order to maintain the reliability of the beamformed communications, the UE may be configured with a channel state information (CSI) reporting configuration. Summary of the invention

[0004] The systems, methods and devices of the disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.

[0005] One innovative aspect of the subject matter described in the present disclosure may be implemented in a method of wireless communication at an apparatus of a user equipment (UE). In some implementations, the method may include: receiving a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both; selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set; selecting a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set; and sending a report based on the channel measurement or the interference measurement, or both.

[0006] Another innovative aspect of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication at an apparatus of a UE. The apparatus may include a first interface, a second interface, and a processing system. The first interface may be configured to: obtain a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both. The processing system may be configured to: select a first CSI measurement resource from one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set; and select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The second interface may be configured to: output a report based on a channel measurement or an interference measurement, or both.

[0007] Another innovative aspect of the subject matter described in the present disclosure can be implemented in another apparatus for wireless communication at an apparatus of a UE. The apparatus may include a unit for performing the following operations: receiving a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both; selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set; selecting a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set; and sending a report based on the channel measurement or the interference measurement, or both.

[0008] Another innovative aspect of the subject matter described in the present disclosure can be implemented in a non-transitory computer-readable medium storing code for wireless communication at a device of a UE. The code may include instructions executable by a processor to perform the following operations: receiving a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both; selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set; selecting a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set; and sending a report based on the channel measurement or the interference measurement, or both.

[0009] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, the second CSI measurement resource comprises a non-zero power interference measurement resource (NZP-IMR) or a CSIIM resource.

[0010] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, a first CSI hypothesis in a CSI hypothesis set corresponds to a first TCI state and a second TCI state in a TCI state set for channel measurement, a second CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state, and a third CSI hypothesis in the CSI hypothesis set corresponds to the second TCI state.

[0011] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, the one or more CSI measurement resources include a first CSI measurement resource or a second CSI measurement resource, or both.

[0012] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for selecting, based on a configuration, a first CSI measurement resource for a second CSI hypothesis corresponding to a first TCI state for channel measurement.

[0013] Some implementations of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for determining a configured CSIIM resource for a second CSI hypothesis; and determining to use the CSIIM resource for interference measurement.

[0014] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for selecting a second CSI measurement resource as a NZP-IMR for a second CSI hypothesis based on a dynamic point selection for a second TCI state.

[0015] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, each CSI-RS port of a non-zero power CSI reference signal (NZP CSI-RS) associated with the second CSI measurement resource includes a single interference layer.

[0016] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining a first power control offset ratio associated with a CSI-RS port for interference measurement based on selecting a second CSI measurement resource as an NZP-IMR; and determining a second power control offset ratio associated with the CSI-RS port based on selecting a second CSI measurement resource for channel measurement, wherein the first power control offset ratio may be different from the second power control offset ratio.

[0017] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI measurement resource as a CSIIM resource for a second CSI hypothesis based on dynamic point selection of a second TCI state; and measuring an energy ratio associated with the second CSI measurement resource based on using the second CSI measurement resource as a CSIIM resource for the second CSI hypothesis.

[0018] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI measurement resource as an NZP-IMR for a second CSI hypothesis based on dynamic point selection of a second TCI state; estimating an energy ratio associated with each CSI-RS port based on using the second CSI measurement resource as the NZP-IMR for the second CSI hypothesis; and aggregating the energy ratio associated with each CSI-RS port.

[0019] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining that a second CSI measurement resource associated with a non-zero power CSI reference signal (NZP CSI-RS) port set corresponds to an interference layer set based on dynamic point selection of a second TCI state.

[0020] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, a set of interference layers may be configured for a UE.

[0021] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a subset of NZP CSI-RS ports of a set of NZP CSI-RS ports corresponds to a single interfering layer of a set of interfering layers.

[0022] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a precoder for transforming a set of NZP CSI-RS ports to a set of interference layers may be preconfigured.

[0023] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming an NZP CSI-RS port set to an interference layer set; transforming the NZP CSI-RS port set to an interference layer set in each frequency band or subband based on a random precoding operation; and determining an average of the NZP CSI-RS port set transformed to the interference layer set.

[0024] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, the precoding matrix includes a wideband precoding matrix and a subband precoding matrix per subband, the wideband precoding matrix may be configured for the UE, and the subband precoding matrix may be randomly selected by the UE in each subband.

[0025] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming a NZP CSI-RS port set to an interference layer set; and transforming the NZP CSI-RS port set to an interference layer set in each RF spectrum band or subband based on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

[0026] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining dynamic point blanking for a second TCI state; and determining to avoid using a second CSI measurement resource for interference measurement based on the dynamic point blanking for the second TCI state.

[0027] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining dynamic point blanking for a second TCI state; and estimating interference associated with a set of non-zero power CSI reference signal (NZP CSI-RS) ports associated with a second CSI measurement resource.

[0028] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI measurement resource for a second CSI hypothesis, or a third CSI hypothesis, or both corresponding to a second TCI state for channel measurement based on a configuration, wherein the UE determines that the CSIIM resource may be an additional interference resource based on the configuration.

[0029] Some implementations of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for determining configured CSIIM resources for a third CSI hypothesis; and determining to use the CSIIM resources for interference measurement.

[0030] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for selecting a second CSI measurement resource as a NZP-IMR for a third CSI hypothesis based on a dynamic point selection for the first TCI state.

[0031] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, each CSI-RS port of a non-zero power CSI reference signal (NZP CSI-RS) associated with the second CSI measurement resource includes a single interference layer.

[0032] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining a first power control offset ratio associated with a CSI-RS port for interference measurement based on selecting a second CSI measurement resource as an NZP-IMR; and determining a second power control offset ratio associated with a CSI-RS port for channel measurement based on selecting the second CSI measurement resource, wherein the first power control offset ratio may be different from the second power control offset ratio.

[0033] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI measurement resource as a CSIIM resource for a third CSI hypothesis based on dynamic point selection of the first TCI state; and measuring an energy ratio associated with the second CSI measurement resource based on using the second CSI measurement resource as a CSIIM resource for the third CSI hypothesis.

[0034] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI measurement resource as an NZP-IMR for a third CSI hypothesis based on dynamic point selection of the first TCI state; estimating an energy ratio associated with each CSI-RS port based on using the second CSI measurement resource as the NZP-IMR for the third CSI hypothesis; and aggregating the energy ratio associated with each CSI-RS port.

[0035] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining that a second CSI measurement resource associated with a non-zero power CSI reference signal (NZP CSI-RS) port set corresponds to an interference layer set based on dynamic point selection of the first TCI state.

[0036] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, a set of interference layers may be configured for a UE.

[0037] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a subset of NZP CSI-RS ports in a set of NZP CSI-RS ports corresponds to a single interfering layer in a set of interfering layers.

[0038] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a precoder for transforming a set of NZP CSI-RS ports to a set of interference layers may be preconfigured.

[0039] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming a NZP CSI-RS port set to an interference layer set; transforming the NZP CSI-RS port set to an interference layer set in each RF spectrum band or subband based on a random precoding operation; and determining an average of the NZP CSI-RS port set to the interference layer set based on the transformation.

[0040] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, the precoding matrix includes a wideband precoding matrix, and the wideband precoding matrix may be configured for a UE.

[0041] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming an NZP CSI-RS port set to an interference layer set; and transforming the NZP CSI-RS port set to an interference layer set in each frequency band or subband based on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

[0042] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, the precoding matrix includes a wideband precoding matrix and a subband precoding matrix per subband, the wideband precoding matrix may be configured for the UE, and the subband precoding matrix may be randomly selected by the UE in each subband.

[0043] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, the first CSI measurement resource and the second CSI measurement resource correspond to the same quasi co-location parameter.

[0044] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining that a second CSI measurement resource can be configured with a second quasi-co-location parameter; determining that the second CSI measurement resource can be used for interference measurement; and avoiding using the second quasi-co-location parameter for the second CSI measurement resource based on that the second CSI measurement resource can be used for interference measurement.

[0045] Some implementations of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for selecting, for a second CSI measurement resource, a first quasi co-located parameter associated with the first CSI measurement resource.

[0046] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: receiving a radio resource control message, a medium access control-control element message, or a downlink control information message including a configuration, the configuration corresponding to a dynamic point selection operation or a dynamic point blanking operation, or a combination thereof.

[0047] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a CSIIM resource associated with the first CSI hypothesis for interference measurement for a second CSI hypothesis, wherein the UE determines based on the configuration that the CSIIM resource may be an additional interference resource.

[0048] One innovative aspect of the subject matter described in the present disclosure can be implemented in a method of wireless communication at an apparatus of a base station. In some implementations, the method may include: receiving a configuration including one or more CSI reference signal (CSI-RS) port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to a transmission configuration indicator (TCI) state set; selecting a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set; selecting a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set; and sending a report based on the channel measurement or the interference measurement, or both.

[0049] Another innovative aspect of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication at an apparatus for a base station. The apparatus may include a first interface, a second interface, and a processing system. The first interface may be configured to obtain a configuration including one or more CSI reference signal (CSI-RS) port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to a transmission configuration indicator (TCI) state set. The processing system may be configured to select a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set; and select a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The second interface may be configured to send a report based on a channel measurement or an interference measurement, or both.

[0050] Another innovative aspect of the subject matter described in the present disclosure can be implemented in an apparatus for wireless communication at an apparatus of a UE. The apparatus may include means for performing the following operations: receiving a configuration including one or more CSI reference signal (CSI-RS) port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to a transmission configuration indicator (TCI) state set; selecting a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set; selecting a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set; and sending a report based on the channel measurement or the interference measurement, or both.

[0051] Another innovative aspect of the subject matter described in the present disclosure can be implemented in a non-transitory computer-readable medium storing code for wireless communication at an apparatus of a base station. The code may include instructions executable by a processor to perform the following operations: receiving a configuration including one or more CSI reference signal (CSI-RS) port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to a transmission configuration indicator (TCI) state set; selecting a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set; selecting a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set; and sending a report based on the channel measurement or the interference measurement, or both.

[0052] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, a first CSI hypothesis in a CSI hypothesis set corresponds to a first TCI state and a second TCI state in a TCI state set for channel measurement, a second CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state, and a third CSI hypothesis in the CSI hypothesis set corresponds to the second TCI state.

[0053] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, the one or more CSI-RS port groups include a first CSI-RS port group or a second CSI-RS port group, or both.

[0054] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a first CSI-RS port group for a second CSI hypothesis corresponding to a first TCI state for channel measurement based on a configuration.

[0055] Some implementations of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for determining a configured CSIIM resource for a second CSI hypothesis; and determining to use the CSIIM resource for interference measurement.

[0056] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for selecting a second CSI-RS port group as an NZP-IMR for a second CSI hypothesis based on dynamic point selection for a second TCI state.

[0057] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, a non-zero power CSI reference signal (NZP CSI-RS) associated with the second CSI-RS port group includes a single interference layer.

[0058] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining a first power control offset ratio for interference measurement based on selecting a second CSI-RS port group as an NZP-IMR; and determining a second power control offset ratio for channel measurement based on selecting a second CSI-RS port group, wherein the first power control offset ratio may be different from the second power control offset ratio.

[0059] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, the first CSI-RS port group and the second CSI-RS port group correspond to the same quasi co-location parameter.

[0060] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI-RS port group as a CSIIM resource for a second CSI hypothesis based on dynamic point selection of a second TCI state; and measuring an energy ratio associated with the second CSI-RS port group based on using the second CSI-RS port group as a CSIIM resource for the second CSI hypothesis.

[0061] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI-RS port group as an NZP-IMR for a second CSI hypothesis based on dynamic point selection of a second TCI state; estimating energy ratios associated with one or more CSI-RS port groups based on using the second CSI-RS port group as the NZP-IMR for the second CSI hypothesis; and aggregating energy ratios associated with one or more CSI-RS port groups.

[0062] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining that a second CSI-RS port group associated with a non-zero power CSI reference signal (NZP CSI-RS) port set corresponds to an interference layer set based on dynamic point selection of a second TCI state.

[0063] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, a set of interference layers may be configured for a UE.

[0064] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a subset of NZP CSI-RS ports of a set of NZP CSI-RS ports corresponds to a single interfering layer of a set of interfering layers.

[0065] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a precoder for transforming a set of NZP CSI-RS ports to a set of interference layers may be preconfigured.

[0066] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming a NZP CSI-RS port set to an interference layer set; transforming the NZP CSI-RS port set to an interference layer set in each RF spectrum band or subband based on a random precoding operation; and determining an average of the NZP CSI-RS port set transformed to the interference layer set.

[0067] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, the precoding matrix includes a wideband precoding matrix and a subband precoding matrix per subband, the wideband precoding matrix may be configured for the UE, and the subband precoding matrix may be randomly selected by the UE in each subband.

[0068] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming a NZP CSI-RS port set to an interference layer set; and transforming the NZP CSI-RS port set to an interference layer set in each RF spectrum band or subband based on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

[0069] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining dynamic point blanking for a second TCI state; and determining to avoid using a second CSI-RS port group for interference measurement based on the dynamic point blanking for the second TCI state.

[0070] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining dynamic point blanking for a second TCI state; and estimating interference associated with a set of non-zero power CSI reference signal (NZP CSI-RS) ports associated with a second CSI-RS port group.

[0071] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a CSIIM resource associated with the first CSI hypothesis for interference measurement for a second CSI hypothesis, wherein the UE determines based on the configuration that the CSIIM resource may be an additional interference resource.

[0072] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI-RS port group for a third CSI hypothesis corresponding to a second TCI state for channel measurement based on the configuration.

[0073] Some implementations of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for determining configured CSIIM resources for a third CSI hypothesis; and determining to use the CSIIM resources for interference measurement.

[0074] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for selecting a second CSI-RS port group as an NZP-IMR for a third CSI hypothesis based on dynamic point selection for the first TCI state.

[0075] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, each CSI-RS port of a non-zero power CSI reference signal (NZP CSI-RS) associated with the second CSI-RS port group includes a single interference layer.

[0076] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining a first power control offset ratio for interference measurement based on selecting a second CSI-RS port group as an NZP-IMR; and determining a second power control offset ratio for channel measurement based on selecting a second CSI-RS port group, wherein the first power control offset ratio may be different from the second power control offset ratio.

[0077] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI-RS port group as a CSIIM resource for a third CSI hypothesis based on dynamic point selection of the first TCI state; and measuring an energy ratio associated with the second CSI-RS port group based on using the second CSI-RS port group as a CSIIM resource for the third CSI hypothesis.

[0078] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a second CSI-RS port group as an NZP-IMR for a third CSI hypothesis based on dynamic point selection of the first TCI state; estimating an energy ratio based on using the second CSI-RS port group as the NZP-IMR for the third CSI hypothesis; and aggregating the energy ratio.

[0079] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining, based on dynamic point selection of the first TCI state, that a second CSI-RS port group associated with a non-zero power CSI reference signal (NZP CSI-RS) port set corresponds to an interference layer set.

[0080] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a subset of NZP CSI-RS ports in a set of NZP CSI-RS ports corresponds to a single interfering layer in a set of interfering layers.

[0081] In some implementations, methods, apparatuses, and non-transitory computer-readable media described herein, a precoder for transforming a set of NZP CSI-RS ports to a set of interference layers may be preconfigured.

[0082] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming a NZP CSI-RS port set to an interference layer set; transforming the NZP CSI-RS port set to an interference layer set in each RF spectrum band or subband based on a random precoding operation; and determining an average of the NZP CSI-RS port set to the interference layer set based on the transformation.

[0083] In some implementations, methods, apparatus, and non-transitory computer-readable media described herein, the precoding matrix includes a wideband precoding matrix and a subband precoding matrix per subband, the wideband precoding matrix may be configured for the UE, and the subband precoding matrix may be randomly selected by the UE in each subband.

[0084] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: selecting a precoding matrix for transforming a NZP CSI-RS port set to an interference layer set; and transforming the NZP CSI-RS port set to an interference layer set in each RF spectrum band or subband based on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

[0085] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining that a second CSI-RS port group can be configured with a second quasi-co-location parameter; determining that the second CSI-RS port group can be used for interference measurement; avoiding using the second quasi-co-location parameter for the second CSI-RS port group based on that the second CSI-RS port group can be used for interference measurement; and selecting the first quasi-co-location parameter associated with the first CSI-RS port group for the second CSI-RS port group.

[0086] Some implementations of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: receiving a radio resource control message, a medium access control-control element message, or a downlink control information message including a configuration, the configuration corresponding to a dynamic point selection operation or a dynamic point blanking operation, or a combination thereof.

[0087] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, drawings, and claims. It should be noted that the relative sizes of the following drawings may not be drawn to scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] Figure 1 and Figure 2 An example of a wireless communication system for wireless communication that supports resource selection for single and multiple transmit / receive point (TRP) channel state information (CSI) reporting is shown.

[0089] Figure 3 An example of a CSI reporting configuration framework supporting resource selection for single and multiple TRP CSI reporting is shown.

[0090] Figure 4-Figure 6 An example of a resource scheme supporting resource selection for single and multiple TRP CSI reporting is shown.

[0091] Figure 7 and Figure 8A block diagram of an example device supporting resource selection for single and multiple TRP CSI reporting is shown.

[0092] Fig. 9 A block diagram of an example communications manager that supports resource selection for single and multiple TRP CSI reporting is shown.

[0093] Fig.10 A diagram of a system including an example device supporting resource selection for single and multiple TRP CSI reporting is shown.

[0094] Fig.11 and Fig.12 A flow chart illustrating a method for supporting resource selection for single and multiple TRP CSI reporting is shown.

[0095] Like reference numbers and designations in the various drawings indicate like elements. DETAILED DESCRIPTION

[0096] For the purpose of describing the innovative aspects of the present disclosure, the following description refers to certain implementations. However, one of ordinary skill in the art will readily recognize that the teachings herein can be applied in a variety of different ways. The described implementations can be implemented in any device, system, or network capable of sending and receiving RF signals in accordance with any of the IEEE 16.11 standards or any of the following: IEEE 802.11 standards, Standard, Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Global System for Mobile Communications (GSM), GSM or General Packet Radio Service (GPRS), Enhanced Data GSM Environment (EDGE), Terrestrial Trunked Radio (TETRA), Wideband-CDMA (W-CDMA), Evolution-Data Optimized (EV-DO), 1xEV-DO, EV-DO Rev A, EV-DO Rev B, High Speed ​​Packet Access (HSPA), High Speed ​​Downlink Packet Access (HSDPA), High Speed ​​Uplink Packet Access (HSUPA), Evolved High Speed ​​Packet Access (HSPA+), Long Term Evolution (LTE), AMPS, or other known signals for communicating within a wireless, cellular or Internet of Things (IoT) network (e.g., a system utilizing 3G, 4G or 5G, or another implementation or technology thereof).

[0097] The device may be configured with a channel state information (CSI) report configuration including various resource settings, and the device may select these resource settings and use these resource settings to generate CSI reports based on channel and interference measurements performed according to the selected resource settings. Each resource setting may have at least one active resource set. The resources within the resource set may be referred to as CSI assumptions. In some implementations, the device may be exposed to one or more transmit / receive points (mTRPs) (such as base stations, etc.), which may affect the reliability of wireless communications (e.g., downlink reception and uplink transmission at the device). The device may be configured to provide an mTRP CSI report corresponding to a CSI report associated with more than one transmission configuration indicator (TCI) state. In some implementations, the device may be configured to use a single resource, which may be associated with an antenna port group, wherein each antenna port group is associated with a TCI state. For example, some antenna ports of the resource may correspond to a directional beam, and other ports of the resource may correspond to another directional beam. In some other implementations, two resources may be linked, and the mTRP CSI assumption may correspond to the resource pair.

[0098] Various aspects of the present disclosure relate to reducing overhead signaling and resource usage associated with CSI reporting. For example, the device may be configured to use a channel state information (CSI) measurement resource (CMR) for mTRP CSI as a non-zero power (NZP) interference measurement resource (NZP-IMR), or to use a channel state information interference measurement (CSIIM) resource for a single TRP (sTRP) CSI to reduce message transmission overhead and resource overhead for the device. The device may be configured with a CMR pair for a first CSI hypothesis corresponding to a first directional beam (such as a first TCI state) and a second directional beam (such as a second TCI state) for channel measurement and a CSIIM resource for interference measurement. The device may be additionally configured with a second CSI hypothesis that corresponds exclusively to the first TCI state or a third CSI hypothesis that corresponds exclusively to the second TCI state. In some examples, the device may select a CMR for channel measurement based on the CSI hypothesis, and select a CSIIM resource or another CMR for interference measurement based on the CSI hypothesis. The another CMR may be a NZP-IMR or a CSIIM resource. In some other examples, the device may select an antenna port group for channel measurement based on a CSI assumption, and select a CSIIM resource or another antenna port group for interference measurement based on the CSI assumption.

[0099] Specific implementations of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages. The techniques employed by the device may provide benefits and enhancements to the operation of the device. For example, the operations performed by the device may provide wireless communications (e.g., downlink reception, uplink transmission) with higher reliability by providing improvements to CSI reports based on channel and interference measurements. In some implementations, configuring the device to support techniques for using CMRs for mTRP CSI as NZP-IMR or CSIIM resources for sTRP CSI may support improved power consumption by reducing overhead signaling and resource usage associated with channel and interference measurements. In some other implementations, configuring the device to support techniques for using CMRs for mTRP CSI as NZP-IMR or CSIIM resources for sTRP CSI may provide spectral efficiency as well as other benefits.

[0100] Figure 1 An example of a wireless communication system 100 that supports resource selection for single and multiple TRP CSI reports is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, or an NR network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices, or any combination thereof.

[0101] Base stations 105 may be dispersed throughout a geographic area to form wireless communication system 100, and may be devices of different forms or capabilities. Base stations 105 and UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which UEs 115 and base stations 105 may establish one or more communication links 125. Coverage area 110 may be an example of a geographic area over which base stations 105 and UEs 115 may support transmission of signals according to one or more radio access technologies.

[0102] UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. UEs 115 may be devices of different forms or with different capabilities. Figure 1Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), such as Figure 1 shown.

[0103] The base stations 105 may communicate with the core network 130, or communicate with each other, or perform both operations. For example, the base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or another interface). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) on the backhaul link 120 (e.g., via X2, Xn, or another interface), or communicate with each other indirectly (e.g., via the core network 130), or perform both operations. In some examples, the backhaul link 120 may be or include one or more wireless links. One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base transceiver, a radio base station, an access point, a radio transceiver, a node B, an evolved node B (eNB), a next generation node B, or a gigabit node B (any of which may be referred to as a gNB), a home node B, a home evolved node B, or some other appropriate terminology.

[0104] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other appropriate terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, among other examples. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, among other examples, which may be implemented in various items such as appliances, or vehicles, meters, and other examples. The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may sometimes act as repeaters, as well as base stations 105 and network devices (including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples), such as Figure 1 shown.

[0105] UE 115 and base station 105 can communicate with each other wirelessly via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources with a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-APro, NR). Each physical layer channel can carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating operations for the carrier, user data, or other signaling. The wireless communication system 100 can support communication with UE 115 using carrier aggregation or multi-carrier operation. According to the carrier aggregation configuration, UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers.

[0106] The carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be placed according to a channel grid so as to be discovered by UE 115. A carrier may operate in an independent mode, where UE 115 initially acquires and connects via a carrier, or a carrier may operate in a non-independent mode, where different carriers (e.g., of the same or different radio access technologies) are used to anchor the connection. The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from UE 115 to base station 105, or a downlink transmission from base station 105 to UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0107] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a number of determined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). A device of the wireless communication system 100 (e.g., a base station 105, a UE 115, or both) may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a subband, a BWP) or all of a carrier bandwidth.

[0108] The signal waveform transmitted on the carrier may be composed of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, wherein the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements received by the UE 115 and the higher the order of the modulation scheme, the higher the data rate for the UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communication with the UE 115.

[0109] One or more numerologies for a carrier may be supported, where the numerologies may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to the one or more active BWPs. The basic time unit (which may be, for example, referred to as T) may be used. s =1 / (Δf max ·N f ) seconds sampling period, where Δf max It can represent the maximum supported subcarrier spacing, and N fThe time intervals for the base station 105 or the UE 115 may be expressed as multiples of a maximum supported discrete Fourier transform (DFT) size). The time intervals of the communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0110] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., depending on the length of a cyclic prefix added in front of each symbol period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N f ) sampling period. The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band. A subframe, a time slot, a micro-time slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in the form of bursts of shortened TTIs (sTTIs)).

[0111] Physical channels may be multiplexed on a carrier according to various techniques. For example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique may be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by the number of symbol periods and may extend across the system bandwidth of a carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a group of UEs 115. For example, one or more of the UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels arranged in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0112] Each base station 105 can provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots or other types of cells, or any combination thereof). The term "cell" can refer to a logical communication entity used to communicate with the base station 105 (e.g., on a carrier), and can be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID) or other identifier) ​​for distinguishing adjacent cells. In some examples, a cell can also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors (such as the capabilities of the base station 105), the range of such a cell can range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell can be or include a building, a subset of a building, or an external space between or overlapping geographic coverage areas 110, as well as other examples.

[0113] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 115 with a service subscription to a network provider that supports the macro cell. Small cells may be associated with a lower power base station 105 than a macro cell, and small cells may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. Small cells may provide unrestricted access to UEs 115 with a service subscription to a network provider, or may provide restricted access to UEs 115 associated with small cells (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a residence or office). A base station 105 may support one or more cells, and may also support communications on one or more cells using one or more component carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0114] In some examples, the base stations 105 may be mobile and, therefore, provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In some other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for respective geographic coverage areas 110 using the same or different radio access technologies.

[0115] The wireless communication system 100 may support synchronous operation or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and in some examples, transmissions from different base stations 105 may not be aligned in time. The techniques described herein may be used for either synchronous operation or asynchronous operation.

[0116] Some UEs 115 (e.g., MTC or IoT devices) may be low-cost or low-complexity devices and may provide automated communications between machines (e.g., via machine-to-machine (M2M) communications). M2M communications or MTC may refer to data communications technology that allows devices to communicate with each other or base stations 105 without human intervention. In some examples, M2M communications or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a human interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based service billing.

[0117] Some UEs 115 may be configured to employ an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception rather than transmission and reception simultaneously). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving deep sleep mode when not participating in active communications, when operating on a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0118] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE115 can be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private communication or group communication, and can be supported by one or more mission-critical services (such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include prioritization of services, and mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency can be used interchangeably in this article.

[0119] In some examples, UE 115 may be able to communicate directly with other UE 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some examples, groups of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates scheduling of resources for D2D communication. In other implementations, D2D communication is performed between UEs 115 without involving the base station 105.

[0120] The D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these items. The vehicles can use signals to send information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, the vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both operations.

[0121] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function unit (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function unit (UPF)) for routing packets to an external network or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the core network 130. User IP packets may be transmitted through a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP service 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0122] Some of the network devices (e.g., base stations 105) may include subcomponents such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with the UE 115 through one or more other access network transport entities 145 (which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs)). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0123] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves may be sufficient to penetrate structures for macro cells to provide services to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmission using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0124] The wireless communication system 100 may also operate in a super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also referred to as a centimeter band) or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also referred to as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between UE 115 and base station 105, and the EHF antenna of the corresponding device may be even smaller and more closely spaced than the UHF antenna. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer from even greater atmospheric attenuation and shorter distances than SHF or UHF transmissions. The technology disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of the frequency bands across these frequency regions may differ according to countries or regulatory agencies.

[0125] The wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) can employ carrier sensing for conflict detection and avoidance. In some examples, operations in unlicensed bands can be based on a carrier aggregation configuration in combination with component carriers operating in a licensed band (e.g., LAA). Operations in the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, as well as other examples.

[0126] The base station 105 or UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which may support MIMO operations or transmit or receive beamforming). For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (e.g., an antenna tower). In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having antenna ports of a number of rows and columns that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals sent via the antenna ports.

[0127] The base station 105 or UE 115 can use MIMO communication to exploit multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. For example, a transmitting device may send multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) (where multiple spatial layers are sent to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are sent to multiple devices).

[0128] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to form or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that some signals propagating in a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0129] As part of the beamforming operation, the base station 105 or the UE 115 may use beam scanning techniques. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communications with the UE 115. The base station 105 may send some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions. For example, the base station 105 may send signals based on different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or by a receiving device (such as the UE 115)) to identify a beam direction for subsequent transmission or reception by the base station 105.

[0130] Base station 105 may transmit some signals (e.g., data signals associated with a particular receiving device (e.g., UE 115)) in a single beam direction (e.g., a direction associated with the receiving device). In some examples, the beam direction associated with transmission along the single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 having the highest signal quality or otherwise acceptable signal quality.

[0131] In some examples, transmissions by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may generate a combined beam for transmission (e.g., from the base station 105 to the UE 115) using a combination of digital precoding or radio frequency beamforming. The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may send reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that may be precoded or not precoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).

[0132] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from the base station 105, the receiving device (e.g., UE 115) can try multiple reception configurations (e.g., directional listening). For example, the receiving device can try multiple reception directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets), or by processing the received signals according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array, any of which can be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device can use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions).

[0133] The UE 115 may be configured with a CSI reporting configuration including one or more resource settings, which the UE 115 may select and use to generate a CSI report based on channel and interference measurements performed according to the selected resource settings. Each resource setting may have at least one active resource set. The resources within a resource set may be referred to as a CSI hypothesis. In some implementations, the UE 115 may be exposed to multiple TRPs (mTRPs) (such as two or more base stations 105, etc.), which may affect the reliability of wireless communications (e.g., downlink reception and uplink transmission at the UE 115).

[0134] UE 115 may be configured to provide an mTRP CSI report corresponding to a CSI report associated with more than one TCI state. In some implementations, UE 115 may be configured to use a single resource, which may be associated with an antenna port group. Each antenna port group is associated with a TCI state. For example, some antenna ports of the resource may correspond to a directional beam, and other ports of the resource may correspond to another directional beam. In some other implementations, two resources may be linked, and the mTRP CSI hypothesis may correspond to the resource pair.

[0135] In some implementations, UE 115 may be configured to reduce overhead signaling and resource usage associated with CSI reporting. For example, UE 115 may be configured to use CMRs for mTRP CSI as NZP-IMR or CSIIM resources for sTRP CSI. UE 115 may be configured with a CMR pair for a first CSI hypothesis corresponding to a first directional beam (such as a first TCI state) and a second directional beam (such as a second TCI state) for channel measurement and a CSIIM resource for interference measurement. In some implementations, UE 115 may be configured with a second CSI hypothesis that corresponds exclusively to the first TCI state. In some other implementations, UE 115 may be configured with a third CSI hypothesis that corresponds exclusively to the second TCI state.

[0136] The UE 115 may be configured to select a CMR for channel measurement based on a CSI assumption. Additionally or alternatively, the UE 115 may be configured to select a CSIIM resource or another CMR for interference measurement based on a CSI assumption. The other CMR may be an NZP-IMR or a CSIIM resource. In some other examples, the UE 115 may additionally or alternatively select an antenna port group for channel measurement based on a CSI assumption, and select a CSIIM resource or another antenna port group for interference measurement based on a CSI assumption.

[0137] The wireless communication system 100 can be a packet-based network operated according to a layered protocol stack. In the user plane, the communication at the bearer or packet data convergence protocol (PDCP) layer can be based on IP. The radio link control (RLC) layer can perform packet segmentation and reorganization to transmit on a logical channel. The medium access control (MAC) layer can perform priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use error detection technology, error correction technology, or both to support retransmission at the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection (which supports radio bearers for user plane data) between the UE 115 and the base station 105 or the core network 130. At the physical layer, the transport channel can be mapped to the physical channel.

[0138] UE 115 and base station 105 can support retransmission of data to increase the possibility that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is a technology for increasing the possibility that data is correctly received on communication link 125. HARQ can include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput at the MAC layer under poor radio conditions (e.g., low signal and noise conditions). In some examples, the device can support the same time slot HARQ feedback, wherein the device can provide HARQ feedback for data received in the previous symbol in the time slot in a specific time slot. In other implementations, the device can provide HARQ feedback in subsequent time slots or according to some other time interval.

[0139] Figure 2 An example of a wireless communication system 200 that supports resource selection for single and multiple TRP CSI reports is shown. The wireless communication system 200 may implement aspects of the wireless communication system 100. For example, the wireless communication system 200 may include one or more base stations 105 and UEs 115 as described herein. The wireless communication system 200 may support a variety of radio access technologies, including 4G systems (such as LTE systems, LTE-A systems, or LTE-A Pro systems) and 5G systems (which may be referred to as NR systems).

[0140] Base stations 105 and UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output communications, or beamforming, or any combination thereof. The antennas of base stations 105 and UE 115 may be located within one or more antenna arrays or antenna panels (which may support multiple-input multiple-output operations or transmit or receive beamforming). For example, base station 105 antennas or antenna arrays may be co-located at antenna assemblies (such as antenna towers). In some examples, antennas or antenna arrays associated with base stations 105 may be located at different geographical locations.

[0141] The base station 105 may have an antenna array having a number of rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UE 115. Likewise, the UE 115 may have one or more antenna arrays that may support various multiple-input multiple-output or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals sent via one or more antenna ports. The base station 105 and the UE 115 may therefore be configured to support beamforming communications 205 using multiple antennas and conducted over a communication link 210. Examples of the communication link 210 include a downlink channel or an uplink channel, or a combination thereof. For example, the base station 105 may send a downlink transmission on a downlink channel (such as a physical downlink control channel or a physical downlink shared channel, or a combination thereof), and the UE 115 may receive a downlink transmission on the downlink channel. Likewise, the UE 115 may send an uplink transmission on an uplink channel, such as a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), or a combination thereof, and the base station 105 may receive the uplink transmission on the uplink channel.

[0142] The base station 105 and the UE 115 may communicate via beamforming communication 205 using multiple component carriers. For example, the base station 105 and the UE 115 may be configured to support multiple downlink component carriers and multiple uplink component carriers. The base station 105 and the UE 115 may be configured to support beamforming communication 205 on a carrier bandwidth (e.g., a radio frequency spectrum band, one or more radio frequency spectrum sub-bands, etc.), or may be configured to support beamforming communication 205. The radio frequency spectrum band may include a wideband. The radio frequency spectrum sub-band may also include a wideband or a narrowband, etc.

[0143] In some implementations, the base station 105 and the UE 115 may support sub-band beamforming communications. In some implementations, the base station 105 and the UE 115 may support TDD operations and FDD operations in unpaired spectrum or paired spectrum. Unpaired spectrum provides a single sub-band or a single frequency band for both downlink communication and uplink communication. Paired spectrum provides different sub-bands or frequency bands for downlink communication and uplink communication. For example, the wireless communication system 200 may have a radio frequency spectrum block in a lower radio frequency spectrum band and an associated radio frequency spectrum block in a higher radio frequency spectrum band. This arrangement of radio frequency spectrum bands with one frequency band for uplink communication and one frequency band for downlink communication is called paired spectrum.

[0144] In the wireless communication system 200, the UE 115 may perform channel and interference measurements to maintain or improve beamformed communications 205 with the base station 105. The UE 115 may be configured with a CSI reporting configuration, such as Figure 3 As described in , a CSI report configuration includes various resource settings that a device can select and use to generate a CSI report based on channel and interference measurements performed according to the selected resource settings. Figure 2 As shown, in some implementations, UE 115 may be exposed to mTRP (such as base station 105, etc.), which may affect the reliability of beamforming communication 205 (e.g., downlink reception and uplink transmission at UE 115). UE 115 can be configured to provide mTRP CSI reports, which correspond to CSI reports associated with more than one TCI state. In some implementations, UE 115 can be configured to use a single resource, which can be associated with antenna port groups, where each antenna port group is associated with a TCI state. For example, some antenna ports of the resource can correspond to a directional beam, and other ports of the resource can correspond to another directional beam. In some other implementations, two resources can be linked, and the mTRP CSI hypothesis can correspond to the resource pair.

[0145] In the wireless communication system 200, the UE 115 may be configured to use a CMR for mTRP CSI as an NZP-IMR or CSIIM resource for sTRP CSI to reduce message transmission overhead and resource overhead of the device. The UE 115 may be configured with a CMR pair for a first CSI hypothesis corresponding to a first directional beam (such as a first TCI state) and a second directional beam (such as a second TCI state) for channel measurement and a CSIIM resource for interference measurement. The UE 115 may be additionally configured with a second CSI hypothesis that corresponds exclusively to the first TCI state or a third CSI hypothesis that corresponds exclusively to the second TCI state. In some examples, the UE 115 may select a CMR for channel measurement based on the CSI hypothesis, and select a CSIIM resource or another CMR for interference measurement based on the CSI hypothesis. The other CMR may be an NZP-IMR or a CSIIM resource. In some other examples, UE 115 may select an antenna port set for channel measurement based on the CSI assumption and select a CSIIM resource or another antenna port set for interference measurement based on the CSI assumption.

[0146] Figure 3 An example of a CSI reporting configuration framework 300 that supports resource selection for single and multiple TRP CSI reporting is shown. The CSI reporting configuration framework 300 may implement the CSI reporting configuration framework 300 as shown in FIG. Figure 1 and Figure 2 Various aspects of the wireless communication system 100 and the wireless communication system 200 described in Figure 1 and Figure 2 As described, the CSI reporting configuration framework 300 may be implemented by the UE 115 and the base station 105 in the CSI reporting process. The CSI reporting configuration framework 300 may illustrate the process of the UE 115 receiving a CSI reporting configuration 305 from the network (e.g., from the base station 105), which may indicate one or more resources for CSI measurement.

[0147] UE 115 may measure one or more potential signal paths (such as Figure 1 and Figure 2 105). The UE 115 may measure the CSI-RS and may use the measurement to perform channel estimation. The CSI-RS transmission measured by the UE 115 may be a periodic CSI-RS transmission, an aperiodic CSI-RS transmission, a semi-persistent CSI-RS transmission, or a combination thereof. The UE 115 sends a CSI report to the base station 105, the CSI report including one or more parameters based on the CSI measurement.

[0148] In some implementations, the CSI report may include one or more precoding matrix indicators (PMI), rank indicators (RI), layer indicators (LI), channel quality indicators (CQI), reference signal received power (RSRP) measurements (e.g., layer 1-RSRP (L1-RSRP)), signal to interference plus noise (SINR) measurements (e.g., L1-SINR), etc. In some implementations, the UE 115 may perform periodic CSI reporting (e.g., the base station 105 may send higher layer signaling that schedules periodic CSI reporting), aperiodic CSI reporting (e.g., the base station 105 may dynamically configure CSI reporting), semi-persistent CSI reporting (e.g., the base station 105 may send higher layer signaling that schedules periodic CSI reporting, and dynamic signaling may be used to trigger periodic CSI reporting), or a combination.

[0149] The UE 115 may receive a control message indicating a CSI reporting configuration 305 corresponding to one or more resources (e.g., CSI measurement resources) on which the UE 115 may monitor two or more reference signals. For example, the UE 115 may receive a control message (such as RRC signaling, MAC-CE signaling, DCI signaling, etc.) including a CSI reporting configuration 305 (which may be equivalently referred to as a "CSI reporting configuration") that may be linked to one or more resource settings associated with different measurement types. The CSI reporting configuration 305 may be linked to one or more settings of non-zero power (NZP) CSI-RS resources (CMRs) 310 for channel measurement, CSI-RS resources (CSIIMs) 315 for interference measurement, or NZP CSI-RS for interference measurement (NZP IMRs) 320, or any combination thereof. Each of the one or more resource settings to which the CSI reporting configuration 305 is linked may be associated with multiple resource sets, but associated with one active resource set (e.g., one active resource set).

[0150] The NZP-CMR setting 310 may be associated with one or more NZP CMR sets 325. For example, the NZP CMR set 325-a may be an active resource set, while the NZP CMR set 325-b and the NZP CMR set 325-c may be inactive resource sets. Similarly, the CSIIM resource setting 315 may be associated with one or more CSIIM resource sets 330. For example, the CSIIM resource set 330-a may be an active resource set, while the CSIIM resource set 330-b and the CSIIM resource set 330-c may be inactive resource sets. Similarly, the NZP IMR setting 320 may be associated with one or more NZP IMR sets 335. For example, the NZP IMR set 335-a may be an active resource set, while the NZP IMR set 335-b and the NZP IMR set 335-c may be inactive resource sets.

[0151] Each resource set may have one or more resources, which may be referred to as CSI-RS resources or CSI measurement resources. For example, the NZP CMR set 325-a may include one or more resources, such as one or more NZP CMRs 340 (e.g., abNZP CMRs 340-a and NZP CMRs 340-b). In some aspects, the NZP CMRs 340-a may be associated with TCI state a (e.g., a first TCI state), and the NZP CMRs 340-b may be associated with TCI state b (e.g., a second TCI state). Similarly, the CSIIM resource set 330-a may include one or more resources, such as one or more CSIIM resources 345 (e.g., CSIIM resources 345-a and CSIIM resources 345-b). Similarly, the NZP IMR set 335-a may include one or more resources, such as one or more NZP IMRs 350 (e.g., NZP IMRs 350-a and NZP IMRs 350-b). In some examples, each CSI measurement resource within a resource set may be referred to as a CSI hypothesis.

[0152] The UE 115 may select one NZP CMR 340 for reporting CSI from one or more NZP-CMRs 340. The UE 115 may report the selected CMR 340 in a CSI-RS resource indicator (CRI) field as part of the CSI feedback so that the receiving TRP or serving base station 105 knows which NZP CMR 340 the reported CSI corresponds to. Based on the selected NZP CMR 340, the UE 115 may also implicitly select a resource from one or more CSIIM resources 345 (e.g., CSIIM resource 345-a or CSIIM resource 345-b) and one or more NZP IMRs 350 (e.g., NZP IMR 350-a, NZP IMR 350-b, or both). For example, an NZP CMR 340 may feature a per-resource association 355 with a CSIIM resource 345, such that one NZP-CMR 340 is associated with one CSIIM resource 345. For example, NZP CMR 340-a may be associated with CSIIM resource 345-a, and NZP CMR 340-b may be associated with CSIIM resource 345-b. Additionally, each NZP CMR 340 may feature a per-resource association 360 common to all NZP IMRs 350, such that both NZP CMR 340-a and NZP CMR 340-b may be associated with NZP IMR 350-a and NZP IMR 350-b.

[0153] As shown, in the CSI report configuration framework 300, there may be a one-to-one mapping between each CMR or each CSI hypothesis (e.g., each CRI) and each CSIIM resource. In other words, each CSI-RS resource used for channel measurement may be associated with a CSIIM resource by resource based in part on the ordering of the CSI-RS resources and CSIIM resources in the corresponding resource set. The number of CSI-RS resources used for channel measurement may be equal to the number of CSIIM resources. In some implementations, UE115 may measure interference (e.g., without RS estimation) by measuring the energy in the CSIIM resources. The CSIIM resource configuration may include resource elements for UE 115 to measure interference. NZP-IMR (NZP CSI-RS resource for interference measurement) may be associated with all CMRs in a resource setting that is not linked to CSIIM.

[0154] The UE 115 may also include an NZP CSI-RS port configured for interference measurement. Each NZP CSI-RS port configured for interference measurement may correspond to an interference transmission layer. The UE 115 may estimate each port of the NZP CSI-RS resource used for interference measurement and each port corresponding to an interference transmission layer. In some implementations, the ports of the NZP-IMR may be beamformed and used to measure multi-user (MU) interference. The NZP-IMR and CSIIM may be configured with the same quasi-co-location parameters (e.g., the same QCL type D) corresponding to the same directional beam (e.g., receive beam or transmit beam) as the corresponding CMR resource.

[0155] Figure 4 Examples of resource schemes 400 and 401 supporting resource selection for single and multiple TRP CSI reports are shown. Resource schemes 400 and 401 may be implemented to implement resource selection as described in Figure 1 and 2 Aspects of the wireless communication system 100 or the wireless communication system 200 described in . Resource scheme 400 and resource scheme 401 can be based on configuration performed by base station 105 and implemented by UE 115 for channel measurement or interference measurement, or both. For example, multiple TRPs can send one or more reference signals (such as one or more CSI-RS) to UE 115 on a single CSI-RS resource associated with multiple port groups, each port group is associated with a different TCI state, or send one or more reference signals to UE 115 on multiple CSI-RS resources, each CSI-RS resource is associated with a different TCI state. In some implementations, UE 115 can perform channel measurement or interference measurement, or both based on whether multiple TRPs send one or more reference signals on a single resource or on multiple resources.

[0156] Reference Figure 2 and Figure 4 , UE 115 can operate within a multi-TRP system and can receive joint transmissions from multiple TRPs. In some examples, UE 115 can receive reference signals (such as CSI-RS) from each of the two TRPs, each TRP applying a different TCI state. For example, UE 115 can receive a first reference signal from a first TRP according to TCI state 405, and can receive a second reference signal from a second TRP according to TCI state 410. In such an example, UE 115 can generate a CSI report including CSI associated with more than one TCI state (e.g., TCI state 405 and TCI state 410), which can also be referred to as a multi-TRP or mTRP CSI report. In some examples, either of the two TRPs or UE 115 can select a CSI hypothesis based on which UE 115 is to generate a CSI report, and each CSI hypothesis (and corresponding CSI report) can correspond to two or more TCI states (as opposed to a single TCI state). In some aspects, selecting a CSI hypothesis may include selecting a CSI hypothesis from a plurality of TCI states, which may correspond to a plurality of CSI-RS resources in a resource set. Such CSI reporting may meet the objectives of further enhanced MIMO (FeMIMO) work items associated with beamforming and beamsteering.

[0157] The first TRP and the second TRP (for example, in Figure 1 and Figure 2 The base station 105 in the example embodiment may adopt various methods to jointly send reference signals to the UE 115 so that the UE 115 may generate a CSI report (a CSI report spanning a first TCI state and a second TCI state). For example, the first TRP and the second TRP may adopt a first method in which the two TRPs send reference signals on a single resource (such as resource 415 as shown by resource scheme 400). Alternatively, the first TRP and the second TRP may adopt a second method in which the two TRPs send reference signals on separate resources (such as resource 430 and resource 435 as shown by resource scheme 401). In either method, the UE 115 may use one or more resources on which multiple TRPs may send for channel measurement or interference measurement.

[0158] In the first method, as shown by resource scheme 400, resource 415 may include multiple (such as two) CSI-RS port groups (including port group 420 and port group 425), each port group being associated with a TCI state. For example, port group 420 may be associated with TCI state 405, and port group 425 may be associated with TCI state 410. In other words, a first port set of resource 415 (CSI-RS resource) may have TCI state 405 or be otherwise associated with TCI state 405, and as such may be included in port group 420. Similarly, a second port set of resource 415 may have TCI state 410 or be otherwise associated with TCI state 410, and as such may be included in port group 425. Therefore, in the first method, a first TRP applying TCI state 405 and a second TRP applying TCI state 410 may send a reference signal on resource 415, and UE 115 may generate a CSI report based on receiving or measuring the reference signal received on resource 415. In addition, based on the adoption of the first method, the number of multi-TRP CSI hypotheses can be equal to the number of CSI-RS resources having multiple CSI-RS port groups. Therefore, in the first method, a single CSI-RS resource can include two port groups, each of which is associated with a single TCI state. Some ports of the CSI-RS resource have a first TCI state (e.g., a first port group), and other ports of the CSI-RS resource have a second TCI state (e.g., a second port group).

[0159] In the second method, as shown by resource scheme 401, resource 430 and resource 435 can each be associated with a different TCI state. For example, resource 430 can be associated with TCI state 405, and resource 435 can be associated with TCI state 410. In some aspects, resource 430 and resource 435 can be linked as a resource pair (e.g., a CSI-RS resource pair), and the CSI hypothesis can correspond to both resource 430 and source 435. In other words, the CSI hypothesis can correspond to the resource pair. As such, in the second method, the number of multi-TRP CSI assumptions can be equal to the number of CSI-RS resource pairs. Therefore, in the second method, the first TRP applying TCI state 405 can send a reference signal on resource 430, and the second TRP applying TCI state 410 can send a reference signal on resource 435, and UE 115 can generate a CSI report based on receiving or measuring the reference signal received on resource 430 and resource 435. Details related to the first method and the second method are further illustrated by Table 1 shown below. Therefore, in the second method, two CSI-RS resources may be linked and the mTRP CSI hypothesis corresponds to the CSI-RS resource pair.

[0160] Table 1-CSI resource plan

[0161]

[0162] Figure 5 Examples of resource schemes 500, 501, and 502 that support resource selection for single and multiple TRP CSI reports are shown. Resource schemes 500, 501, and 502 may be implemented with reference to Figure 1 and Figure 2 Aspects of wireless communication system 100 and wireless communication system 200 are described. Resource scheme 500, resource scheme 501, and resource scheme 502 may be based on configuration made by base station 105 and implemented by UE 115 for channel measurement or interference measurement, or both.

[0163] Referring to the resource scheme 500 corresponding to the second CSI hypothesis in the hypothesis set, one or more TRPs 505, 510, and 515 may use various methods to jointly send reference signals to UE 115 so that UE 115 can generate a CSI report (a CSI report across a single TCI state or across multiple TCI states). In a first method, as shown by the resource scheme 500, the resource 520 may include multiple (such as two) CSI-RS port groups (including port group 525 and port group 530), each port group being associated with a TCI state. The resource 520 and the port group 525 may be configured for channel measurements associated with one or more TRPs 505, 510, and 515 (e.g., CSI-RS resources for channel measurements). The UE 115 may use the resource 520 and the port group 530 plus m1 (e.g., CSIIM resources) for interference measurements associated with one or more TRPs 505, 510, and 515. Thus, using CSIIM resource m1 for the mTRP CSI hypothesis (TRP 505 and TRP 515), two other CSIIM resources for the same CMR may be required for two sTRP hypotheses (TRP 505 and TRP 515). In a second approach, as shown by resource scheme 500, resource 520 may be associated with different TCI states. That is, two CMRs are associated with three CSIIMs (one for each CMR and another for both CMRs).

[0164] Referring to the resource scheme 501 corresponding to the third CSI hypothesis in the hypothesis set, one or more TRPs 505, 510, and 515 may adopt various methods to jointly send reference signals to UE 115 so that UE 115 can generate a CSI report (a CSI report across a single TCI state or across multiple TCI states). In a first method, as shown by the resource scheme 501, the resource 520 may include multiple (such as two) CSI-RS port groups (including port group 525 and port group 530), each port group being associated with a TCI state. The resource 520 and the port group 530 may be configured for channel measurements associated with one or more TRPs 505, 510, and 515 (e.g., CSI-RS resources for channel measurements). The UE 115 may use the resource 520 and the port group 525 plus m1 (e.g., CSIIM resources) for interference measurements associated with one or more TRPs 505, 510, and 515. Thus, using CSIIM resource m1 for the mTRP CSI hypothesis (TRP 505 and TRP 515), two other CSIIM resources for the same CMR may be required for two sTRP hypotheses (TRP 505 and TRP 515). In a second approach, as shown by resource scheme 500, resource 520 may be associated with different TCI states. That is, two CMRs are associated with three CSIIMs (one for each CMR and another for both CMRs).

[0165] Referring to the resource scheme 502 corresponding to the first CSI hypothesis in the hypothesis set, one or more TRPs 505, 510, and 515 may use various methods to jointly send reference signals to UE 115 so that UE 115 can generate a CSI report (a CSI report across a single TCI state or across multiple TCI states). In the first method, as shown by the resource scheme 502, the resource 520 may include multiple (such as two) CSI-RS port groups (including port group 525 and port group 530), each port group being associated with a TCI state. The resource 520, the port group 525, and the port group 530 may be configured for channel measurements associated with one or more TRPs 505, 510, and 515 (e.g., CSI-RS resources for channel measurements). The UE 115 may use m1 (e.g., CSIIM resources) for interference measurements associated with one or more TRPs 505, 510, and 515. Thus, using CSIIM resource m1 for the mTRP CSI hypothesis (TRP 505 and TRP 515), two other CSIIM resources for the same CMR may be required for two sTRP hypotheses (TRP 505 and TRP 515). In a second approach, as shown by resource scheme 500, resource 520 may be associated with different TCI states. That is, two CMRs are associated with three CSIIMs (one for each CMR and another for both CMRs).

[0166] exist Figure 5 In the example of , if various methods are followed, the UE 115 may experience an increase in signaling overhead (e.g., RRC signaling overhead), and resource overhead may increase because three CSIIM resources are required for three CSI assumptions. The UE 115 may be configured to determine a port group (in method 1) or CSI-RS resources (in method 2) to be configured for the CMR for the mTRP CSI assumption for the CSIIM resources or NZP-IMR, or both, for the sTRP assumption. This may eliminate the need to configure dedicated CSIIM resources for the two sTRP assumptions. In some implementations, the UE 115 may determine whether the UE 115 uses NZP CSI-RS as the NZP-IMR. The NZP CMR of a TRP may include non-beamforming ports. Each CSI-RS port may also be considered as an interference layer.

[0167] Figure 6 Examples of resource schemes 600, 601, and 602 that support resource selection for single and multiple TRP CSI reports are shown. Resource scheme 600, resource scheme 601, and resource scheme 602 may be implemented with reference to Figure 1 and Figure 2Aspects of the wireless communication system 100 and the wireless communication system 200 are described. Resource scheme 600, resource scheme 601, and resource scheme 602 can be based on configuration performed by base station 105 and implemented by UE 115 to facilitate power saving by the UE when performing channel measurements or interference measurements, or both. UE 115 can be configured to support dynamic point selection, where for an sTRP hypothesis corresponding to TRP 605, interference from 615 is assumed. Additionally or alternatively, UE 115 can be configured to support dynamic point blanking, where an sTRP hypothesis corresponding to TRP 605 and TRP 615 is assumed to be muted.

[0168] UE 115 may be configured with a configuration including one or more CSI measurement resources for channel measurement associated with a CSI hypothesis set corresponding to resource schemes 600, 601, and 602. For example, resource scheme 602 corresponds to a first CSI hypothesis in a CSI hypothesis set, which may correspond to a first TCI state and a second TCI state in a TCI state set for channel measurement. Resource scheme 600 may correspond to a second CSI hypothesis in a CSI hypothesis set, which may correspond to a first TCI state. Resource scheme 601 may correspond to a third CSI hypothesis in a CSI hypothesis set, which may correspond to a second TCI state. The CSI hypothesis set may thus correspond to a TCI state set or a CSIIM resource, or both, for interference measurement.

[0169] UE 115 may select a first CSI measurement resource (referred to as CMR0) for channel measurement based on a CSI hypothesis in a CSI hypothesis set. UE 115 may also select a CSIIM resource or a second CSI measurement resource (referred to as CMR1) for interference measurement based on a CSI hypothesis in a CSI hypothesis set. In some implementations, CMR1 may include an NZP-IMR or a CSIIM resource. Referring to resource schemes 600, 601, and 602, one or more of TRP 605, TRP 610, and TRP 615 may employ various methods to jointly send a reference signal to UE 115 so that UE 115 may generate a CSI report (a CSI report spanning a single TCI state or spanning multiple TCI states, or a combination thereof).

[0170] In one approach, a resource pair (such as a CMR pair including CMR0 (e.g., resource 620) and CMR1 (e.g., resource 625)) may be used for a first CSI hypothesis corresponding to transmissions from TRP 605 (e.g., first TCI state) and TRP 615 (e.g., second TCI state) for channel measurement and CSIIM resource m1 (if any) for interference measurement. The UE 115 may be configured with a second CSI hypothesis corresponding to TRP 605 or a third CSI hypothesis corresponding to TRP 615 in addition or alternatively. For the second CSI hypothesis, CMR0 (e.g., resource 620) may be used for channel measurement. For interference measurement, if the UE 115 is configured with a dedicated CSIIM resource for the second CSI hypothesis (e.g., CSIIM resource m2), the CSIIM resource may be used by the UE 115 for interference measurement. Otherwise, the UE 115 may be configured with one or more of the following UE behaviors for channel measurement or interference measurement, or both. The UE behavior may be based on a static configuration (eg, via RRC configuration), or dynamically configured via RRC signaling, MAC-CE signaling, or DCI signaling, or any combination thereof.

[0171] UE 115 may support dynamic point selection operation, e.g., where UE 115 assumes interference from a TRP such as TRP 615. In some implementations, CMR1 (e.g., resource 625) may be used by UE 115 as an NZP-IMR for a second CSI hypothesis. In some implementations, when CMR1 is used as an NZP-IMR, a different power control offset ratio may be defined and configured than when CMR1 is used as a CMR. For example, both a first power control ratio and a second power control ratio may be used for interference measurement. When the resource is used for interference measurement (as an NZP-IMR), a second power control ratio may be configured and used than when the resource is used for channel measurement (e.g., it is used as a CMR for a first CSI hypothesis or a third CSI hypothesis, but it is not used as a CMR for a second CSI hypothesis).

[0172] In some implementations, CMR1 (e.g., resource 625) can be used by UE 115 as CSIIM for the second CSI hypothesis. In some examples, each port of the NZP CSI-RS of CMR1 (e.g., resource 625) can correspond to an interference layer. UE 115 can measure the energy in CMR1, or estimate each port separately and add them without considering each port as a separate interference layer. In other implementations, CMR1 with a number (N) of NZP CSI-RS ports can be associated with n layers of interference, where n is greater than N (e.g., N=8, n=2). In some implementations, the value n can be configured by base station 105.

[0173] A group of NZP CSI-RS ports may be grouped together as one interference layer (e.g., assuming block diagonal precoding for transforming a number of ports to a number of layers). The UE 115 may be configured to select a precoder for transforming the number of NZP CSI-RS ports to the number of layers. The UE 115 may be configured to apply random precoding in each subband to transform the number of NZP CSI-RS ports to the number of layers in the subband, and determine an average across the subband. In some implementations, the UE 115 may apply partial random precoding. For example, a first precoding matrix W1 may be configured for wideband, but the UE selects a random second precoding matrix W2 per subband, where the precoding for transferring the number of ports to the number of layers is W=W1*W2 (e.g., similar to semi-open loop precoding). The value of the number of NZP CSI-RS ports (N), the number of interference layers (n), or the precoder W or W1 or both may be RRC configured and indicated, for example, by a MAC-CE. For example, the UE 115 may be configured with a list, and the MAC-CE may indicate one of them in the list for the UE 115. Thus, the precoding matrix may include a wideband precoding matrix and a subband precoding matrix (per subband), wherein the wideband precoding matrix is ​​configured for the UE 115, and the subband precoding matrix is ​​randomly selected by the UE 115 in each subband.

[0174] The UE 115 may additionally or alternatively support dynamic point blanking operations, for example, where the UE 115 assumes that there is no interference from a TRP (such as TRP 615). That is, it is assumed that TRP 615 is muted. In some implementations, CMR1 (e.g., resource 625) may not be used by the UE 115 for interference measurement. In some other implementations, the UE 115 may be configured to estimate the NZP CSI-RS ports for CMR1 (e.g., resource 625) and determine the residual interference after subtracting the estimated ports of CMR1 in the CMR1 resource elements. The UE 115 can thereby estimate the ports and then subtract them from the total energy in the resource elements of the second CSI-RS resource for the second CSI assumption (so that interference from the ports is not considered interference), because this is for dynamic point blanking operations performed by the UE 115, where it is assumed that the second TRP is muted.

[0175] UE 115 can be configured to use CSIIM resource m1 (which is used for the first CSI hypothesis) as additional interference for the second CSI hypothesis (in addition to the interference in the above implementation). For the third CSI hypothesis, CMR1 can be used for channel measurement. For interference measurement similar to the above (for example, the roles of TRP 605 and TRP 615 and the corresponding CMR are reversed). Here, UE 115 can use CSIIM resource m1 (which is used for the first CSI hypothesis) as additional interference for the second CSI hypothesis (in addition to the determined interference). In addition, the UE behavior (whether to use CSIIM resource m1 as an additional interference resource) can be configurable (the network can configure whether UE 115 regards this as additional interference).

[0176] In another method, the UE 115 may be configured to support the above, and in addition to CMR0 and CMR1, the UE 115 uses port group 0 (corresponding to TRP 605 (e.g., the first TCI state)) and port group 1 (corresponding to TRP 615 (e.g., the second TCI state). In some implementations, when CMR1 (or port group 1) is used for interference measurement for the second CSI hypothesis (corresponding to TRP 605), the same QCL type D of CMR0 (or port group 0) is assumed for CMR1 (or port group 1). This means that the same receive beam or the same UE used to measure the channel can be utilized. 115 panel to measure interference. Therefore, when CMR1 is used as interference measurement for the first TCI state (first TRP), the QCL type D of the second TCI state configured for CMR1 is ignored. That is, CMR1 (or port group 1) is configured with QCL type D. However, when CMR1 (or port group 1) is used for interference measurement, the configured QCL type D of the resource is not used. Instead, the QCL type D of CMR0 is used. This is because for the second CSI hypothesis, both the channel measurement (using the first CMR) and the interference measurement (using the second CMR) should have the same receive beam (same QCL type D).

[0177] Figure 7 A block diagram 700 of a device 705 that supports resource selection for single and multiple TRP CSI reports is shown. The device 705 may be an example of aspects of a UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0178] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to using CMRs for mTRP CSI as NZP-IMR or CSIIM resources for sTRP CSI). The information may be communicated to other components of the device 705. The receiver 710 may be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The receiver 710 may utilize a single antenna or a group of antennas.

[0179] The communication manager 715 may receive a configuration including one or more CSI measurement resources associated with a CSI hypothesis set. The CSI hypothesis set corresponds to a TCI state set, or a CSIIM resource, or both. The communication manager 715 may select a first CSI measurement resource from one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 715 may select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set, and send a report based on the channel measurement or the interference measurement, or both.

[0180] The communication manager 715 may also receive a configuration including one or more CSI-RS port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to the TCI state set. The communication manager 715 may select a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 715 may select a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 715 may send a report based on the channel measurement or the interference measurement, or both. The communication manager 715 may be an example of various aspects of the communication manager 1010 described herein.

[0181] The communication manager 715 or its subcomponents may be physically located at various locations, including being distributed so that portions of the functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0182] The transmitter 720 can transmit signals generated by other components of the device 705. In some examples, the transmitter 720 can be co-located with the receiver 710 in a transceiver module. For example, the transmitter 720 can be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The transmitter 720 may utilize a single antenna or a group of antennas.

[0183] In some implementations, when the communication manager 715 is used as a processor or processing system or is implemented by a processor or processing system, the communication manager 715 can obtain signaling from the receiver 710 using the first interface, and can output signaling using the first interface or the second interface for transmission via the transmitter 720.

[0184] Figure 8 A block diagram 800 of a device 805 that supports resource selection for single and multiple TRP CSI reports is shown. The device 805 may be an example of aspects of the device 705 or UE 115 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 840. The device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0185] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to using CMRs for mTRP CSI as NZP-IMR or CSIIM resources for sTRP CSI). The information may be communicated to other components of the device 805. The receiver 810 may be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The receiver 810 may utilize a single antenna or a group of antennas.

[0186] Communications manager 815 may be an example of aspects of communications manager 715 as described herein. Communications manager 815 may include configuration component 820, resource component 825, reporting component 830, and port component 835. Communications manager 815 may be an example of aspects of communications manager 1010 as described herein.

[0187] The configuration component 820 may receive a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a TCI state set, or a CSIIM resource, or both. The resource component 825 may select a first CSI measurement resource from among the one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set, and select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The reporting component 830 may send a report based on the channel measurement or the interference measurement, or both.

[0188] The port component 835 can perform the following operations: receiving a configuration including one or more CSI-RS port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to the TCI state set; selecting a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set; and selecting a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The reporting component 830 can send a report based on the channel measurement or the interference measurement, or both.

[0189] The transmitter 840 can transmit signals generated by other components of the device 805. In some examples, the transmitter 840 can be co-located with the receiver 810 in a transceiver module. For example, the transmitter 840 can be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The transmitter 840 may utilize a single antenna or a group of antennas.

[0190] Fig. 9 A block diagram 900 of a communication manager 905 supporting resource selection for single and multiple TRP CSI reporting is shown. The communication manager 905 can be an example of aspects of the communication manager 715, the communication manager 815, or the communication manager 1010 described herein. The communication manager 905 can include a configuration component 910, a resource component 915, a reporting component 920, a power component 925, a matrix component 930, and a port component 935. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0191] The configuration component 910 may receive a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a TCI state set, or a CSIIM resource, or both. In some examples, the configuration component 910 may receive an RRC message, a MAC-CE message, or a DCI message including the configuration. In some implementations, the first CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state and the second TCI state for channel measurement in the TCI state set. In some implementations, the second CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state. In some implementations, the third CSI hypothesis in the CSI hypothesis set corresponds to the second TCI state.

[0192] The resource component 915 may select a first CSI measurement resource from one or more CSI measurement resources for channel measurement based on a CSI hypothesis in a CSI hypothesis set. In some examples, the resource component 915 may select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in a CSI hypothesis set. In some examples, the resource component 915 may select a first CSI measurement resource for a second CSI hypothesis based on a configuration, the second CSI hypothesis corresponding to a first TCI state for channel measurement.

[0193] In some examples, resource component 915 may determine a configured CSIIM resource for a second CSI hypothesis. In some examples, resource component 915 may determine to use the CSIIM resource for interference measurement. In some examples, resource component 915 may select the second CSI measurement resource as the NZP-IMR for the second CSI hypothesis based on a dynamic point selection of the second TCI state. In some examples, resource component 915 may select the second CSI measurement resource as the CSIIM resource for the second CSI hypothesis based on a dynamic point selection of the second TCI state. In some examples, resource component 915 may measure an energy ratio associated with the second CSI measurement resource based on using the second CSI measurement resource as the CSIIM resource for the second CSI hypothesis.

[0194] In some examples, resource component 915 may select the second CSI measurement resource as the NZP-IMR for the second CSI hypothesis based on the dynamic point selection of the second TCI state. In some examples, resource component 915 may estimate the energy ratio associated with each CSI-RS port based on using the second CSI measurement resource as the NZP-IMR for the second CSI hypothesis. In some examples, resource component 915 may aggregate the energy ratio associated with each CSI-RS port. In some examples, resource component 915 may determine that the second CSI measurement resource associated with the NZP CSI-RS port set corresponds to the interference layer set based on the dynamic point selection of the second TCI state.

[0195] In some examples, resource component 915 may determine dynamic point blanking for the second TCI state. In some examples, resource component 915 may determine to avoid using the second CSI measurement resource for interference measurement based on the dynamic point blanking for the second TCI state. In some examples, resource component 915 may estimate interference associated with a set of NZP CSI-RS ports associated with the second CSI measurement resource. In some examples, resource component 915 may select a second CSI measurement resource for a third CSI hypothesis corresponding to the second TCI state for channel measurement based on the configuration.

[0196] In some examples, resource component 915 may determine a configured CSIIM resource for a third CSI hypothesis. In some examples, resource component 915 may select a second CSI measurement resource as an NZP-IMR for the third CSI hypothesis based on a dynamic point selection of the first TCI state. In some examples, resource component 915 may select a second CSI measurement resource as a CSIIM resource for the third CSI hypothesis based on a dynamic point selection of the first TCI state. In some examples, resource component 915 may measure an energy ratio associated with the second CSI measurement resource based on using the second CSI measurement resource as a CSIIM resource for the third CSI hypothesis.

[0197] In some examples, resource component 915 may select the second CSI measurement resource as the NZP-IMR for the third CSI hypothesis based on the dynamic point selection of the first TCI state. In some examples, resource component 915 may estimate the energy ratio associated with each CSI-RS port based on using the second CSI measurement resource as the NZP-IMR for the third CSI hypothesis. In some examples, resource component 915 may determine that the second CSI measurement resource associated with the NZP CSI-RS port set corresponds to the interference layer set based on the dynamic point selection of the first TCI state.

[0198] In some examples, resource component 915 may determine that the second CSI measurement resource is configured with a second quasi-co-location parameter. In some examples, resource component 915 may determine that the second CSI measurement resource is used for interference measurement. In some examples, resource component 915 may avoid using the second quasi-co-location parameter for the second CSI measurement resource based on the second CSI measurement resource being used for interference measurement. In some examples, resource component 915 may select a first quasi-co-location parameter associated with the first CSI measurement resource for the second CSI measurement resource.

[0199] In some examples, the resource component 915 may select a CSIIM resource associated with the first CSI hypothesis for interference measurement for the second CSI hypothesis, wherein the UE determines that the CSIIM resource is an additional interference resource based on the configuration. In some examples, the resource component 915 may determine the configured CSIIM resource for the second CSI hypothesis. In some examples, the resource component 915 may determine to use the CSIIM resource for interference measurement. In some examples, the resource component 915 may select a second CSI-RS port group as the NZP-IMR for the second CSI hypothesis based on the dynamic point selection of the second TCI state. In some examples, the resource component 915 may determine a first power control offset ratio for interference measurement based on selecting the second CSI-RS port group as the NZP-IMR. In some examples, the resource component 915 may determine a second power control offset ratio for channel measurement based on selecting the second CSI-RS port group, wherein the first power control offset ratio is different from the second power control offset ratio. In some examples, resource component 915 can select, for a second CSI hypothesis, a CSIIM resource associated with a first CSI hypothesis for interference measurement, wherein the UE determines, based on the configuration, that the CSIIM resource is an additional interference resource. In some examples, resource component 915 can determine a configured CSIIM resource for a third CSI hypothesis.

[0200] In some implementations, the second CSI measurement resource includes an NZP-IMR or a CSIIM resource. In some implementations, one or more CSI measurement resources include a first CSI measurement resource or a second CSI measurement resource, or both. In some implementations, each CSI-RS port of the NZP CSI-RS associated with the second CSI measurement resource includes a single interference layer. In some implementations, an interference layer set is configured for the UE. In some implementations, a subset of the NZP CSI-RS ports of the NZP CSI-RS port set corresponds to a single interference layer in the interference layer set. In some implementations, a precoder for transforming the NZP CSI-RS port set to the interference layer set is preconfigured. In some implementations, the first CSI measurement resource and the second CSI measurement resource correspond to the same quasi-co-location parameter. In some implementations, the NZP CSI-RS associated with the second CSI-RS port group includes a single interference layer.

[0201] The reporting component 920 may send a report based on a channel measurement or an interference measurement, or both. In some examples, the reporting component 920 may send a report based on a channel measurement or an interference measurement, or both. The port component 935 may receive a configuration including one or more CSI-RS port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to a TCI state set. In some examples, the port component 935 may select a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set. In some examples, the port component 935 may select a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set. In some examples, the port component 935 may select a first CSI-RS port group for a second CSI hypothesis based on the configuration, the second CSI hypothesis corresponding to a first TCI state for channel measurement. In some examples, the port component 935 may select a second CSI-RS port group as a CSIIM resource for a second CSI hypothesis based on a dynamic point selection of a second TCI state.

[0202] In some examples, the port component 935 may measure an energy ratio associated with the second CSI-RS port group based on using the second CSI-RS port group as a CSIIM resource for a second CSI hypothesis. In some examples, the port component 935 may select the second CSI-RS port group as an NZP-IMR for the second CSI hypothesis based on a dynamic point selection of a second TCI state. In some examples, the port component 935 may estimate an energy ratio associated with one or more CSI-RS port groups based on using the second CSI-RS port group as an NZP-IMR for the second CSI hypothesis. In some examples, the port component 935 may aggregate energy ratios associated with one or more CSI-RS port groups.

[0203] In some examples, the port component 935 may determine that a second CSI-RS port group associated with the NZP CSI-RS port set corresponds to an interference layer set based on a dynamic point selection of a second TCI state. In some examples, the port component 935 may determine a dynamic point blanking of a second TCI state. In some examples, the port component 935 may determine to avoid using a second CSI-RS port group for interference measurement based on a dynamic point blanking of a second TCI state. In some examples, the port component 935 may estimate interference associated with a NZP CSI-RS port set associated with a second CSI-RS port group. In some examples, the port component 935 may select a second CSI-RS port group for a third CSI hypothesis based on a configuration, the third CSI hypothesis corresponding to a second TCI state for channel measurement.

[0204] In some examples, the port component 935 may select the second CSI-RS port group as the NZP-IMR for the third CSI hypothesis based on the dynamic point selection of the first TCI state. In some examples, the port component 935 may select the second CSI-RS port group as the CSIIM resource for the third CSI hypothesis based on the dynamic point selection of the first TCI state. In some examples, the port component 935 may measure the energy ratio associated with the second CSI-RS port group based on the use of the second CSI-RS port group as the CSIIM resource for the third CSI hypothesis. In some examples, the port component 935 may select the second CSI-RS port group as the NZP-IMR for the third CSI hypothesis based on the dynamic point selection of the first TCI state. In some examples, the port component 935 may estimate the energy ratio based on the use of the second CSI-RS port group as the NZP-IMR for the third CSI hypothesis. In some examples, the port component 935 may aggregate the energy ratio.

[0205] In some examples, the port component 935 may determine that the second CSI-RS port group associated with the NZP CSI-RS port set corresponds to the interference layer set based on the dynamic point selection of the first TCI state. In some examples, the port component 935 may determine that the second CSI-RS port group is configured with a second quasi-co-location parameter. In some examples, the port component 935 may determine that the second CSI-RS port group is used for interference measurement. In some examples, the port component 935 may avoid using the second quasi-co-location parameter for the second CSI-RS port group based on the second CSI-RS port group being used for interference measurement. In some examples, the port component 935 may select the first quasi-co-location parameter associated with the first CSI-RS port group for the second CSI-RS port group.

[0206] In some implementations, the first CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state and the second TCI state in the TCI state set for channel measurement. In some implementations, the second CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state. In some implementations, the third CSI hypothesis in the CSI hypothesis set corresponds to the second TCI state. In some implementations, one or more CSI-RS port groups include the first CSI-RS port group or the second CSI-RS port group, or both. In some implementations, the first CSI-RS port group and the second CSI-RS port group correspond to the same quasi-co-location parameters.

[0207] In some implementations, an interference layer set is configured for the UE. In some implementations, a subset of NZP CSI-RS ports of the NZP CSI-RS port set corresponds to a single interference layer in the interference layer set. In some implementations, a precoder for transforming the NZP CSI-RS port set to the interference layer set is preconfigured. In some implementations, each CSI-RS port of the NZP CSI-RS associated with the second CSI-RS port group includes a single interference layer.

[0208] The power component 925 may determine a first power control offset ratio associated with a CSI-RS port for interference measurement based on selecting a second CSI measurement resource as an NZP-IMR. In some examples, the power component 925 may determine a second power control offset ratio associated with a CSI-RS port for channel measurement based on selecting a second CSI measurement resource, wherein the first power control offset ratio is different from the second power control offset ratio. In some examples, the power component 925 may determine a first power control offset ratio for interference measurement based on selecting a second CSI-RS port group as an NZP-IMR. In some examples, the power component 925 may determine a second power control offset ratio for channel measurement based on selecting a second CSI-RS port group, wherein the first power control offset ratio is different from the second power control offset ratio.

[0209] The matrix component 930 may select a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set. In some examples, the matrix component 930 may transform the NZP CSI-RS port set to the interference layer set in each frequency band or subband based on a random precoding operation. In some examples, the matrix component 930 may determine the average of the NZP CSI-RS port set transformed to the interference layer set. In some examples, the matrix component 930 may select a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set. In some examples, the matrix component 930 may transform the NZP CSI-RS port set to the interference layer set in each radio frequency spectrum band or subband based on a partial random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof. In some examples, the matrix component 930 may transform the NZP CSI-RS port set to the interference layer set in each radio frequency spectrum band or subband based on a random precoding operation.

[0210] In some examples, the matrix component 930 may determine an average of the NZP CSI-RS port set to the interference layer set based on the transformation. In some examples, the matrix component 930 may transform the NZP CSI-RS port set to the interference layer set in each frequency band or subband based on a partial random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof. In some examples, the matrix component 930 may select a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set. In some examples, the matrix component 930 may transform the NZP CSI-RS port set to the interference layer set in each radio frequency spectrum band or subband based on a random precoding operation. In some examples, the matrix component 930 may determine an average of the NZP CSI-RS port set transformed to the interference layer set.

[0211] In some examples, the matrix component 930 may select a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set. In some examples, the matrix component 930 may transform the NZP CSI-RS port set to the interference layer set in each radio frequency spectrum band or subband based on a partial random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof. In some examples, the matrix component 930 may determine the average of the NZP CSI-RS port set to the interference layer set based on the transformation. In some implementations, the precoding matrix includes a broadband precoding matrix and a subband precoding matrix per subband, the broadband precoding matrix is ​​configured for the UE, and the subband precoding matrix is ​​randomly selected by the UE in each subband. In some implementations, the precoder for transforming the NZP CSI-RS port set to the interference layer set is preconfigured. In some implementations, the precoding matrix includes a broadband precoding matrix, which is configured for the UE. In some implementations, the precoding matrix includes a wideband precoding matrix and a subband precoding matrix per subband, the wideband precoding matrix is ​​configured for the UE, and the subband precoding matrix is ​​randomly selected by the UE in each subband.

[0212] Fig.10 A diagram of a system 1000 including a device 1005 that supports resource selection for single and multiple TRP CSI reports is shown. The device 1005 may be an example of or include a component of a device 705, device 805, or UE 115 as described herein. The device 1005 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may communicate electronically via one or more buses (e.g., bus 1045).

[0213] The communication manager 1010 may receive a configuration including one or more CSI measurement resources associated with a CSI hypothesis set. The CSI hypothesis set corresponds to a TCI state set, or a CSIIM resource, or both. The communication manager 1010 may select a first CSI measurement resource from one or more CSI measurement resources for channel measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 1010 may additionally or alternatively select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 1010 may send a report based on the channel measurement or the interference measurement, or both.

[0214] In some examples, the communication manager 1010, when acting as a processor or processing system, can obtain signaling to the transceiver 1020 (e.g., a message, an indication, or any other signature that can be sent to the device 1005). For example, the communication manager 1010 can obtain a configuration (e.g., an RRC configuration) including one or more CSI measurement resources associated with a CSI hypothesis set. The communication manager 1310 can also output signaling (e.g., a message, an indication, or any other signaling that can be sent by the device 1005) via the transceiver 1020. For example, the communication manager 1310 outputs a report based on the channel measurement or the interference measurement, or both.

[0215] The communication manager 1010 may also receive a configuration including one or more CSI-RS port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to the TCI state set. The communication manager 1010 may select a first CSI-RS port group for channel measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 1010 may also select a second CSI-RS port group for interference measurement based on a CSI hypothesis in the CSI hypothesis set. The communication manager 1010 may send a report based on the channel measurement or the interference measurement, or both.

[0216] In some examples, the communication manager 1010, when acting as a processor or processing system, can obtain signaling to the transceiver 1020 (e.g., a message, indication, or any other signature that can be sent to the device 1005). For example, the communication manager 1010 can obtain a configuration (e.g., an RRC configuration) including one or more CSI-RS port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to the TCI state set. The communication manager 1310 can also output signaling (e.g., a message, indication, or any other signature that can be sent by the device 1005) via the transceiver 1020. For example, the communication manager 1310 outputs a report based on channel measurements or interference measurements, or both.

[0217] I / O controller 1015 can manage input and output signals for device 1005. I / O controller 1015 can also manage peripheral devices that are not integrated into device 1005. In some implementations, I / O controller 1015 can represent a physical connection or port to an external peripheral device. In some implementations, I / O controller 1015 can utilize a processor such as a 1005. In some implementations, the I / O controller 1015 may be implemented as part of a processor. In some implementations, a user may interact with the device 1005 via the I / O controller 1015 or via hardware components controlled by the I / O controller 1015.

[0218] The transceiver 1020 may communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 1020 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1020 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from the antenna. In some implementations, the device 1005 may include a single antenna 1025. However, in some implementations, the device 1005 may have more than one antenna 1025, which may be able to send or receive multiple wireless transmissions simultaneously.

[0219] The memory 1030 may include RAM and ROM. The memory 1030 may store computer-readable, computer-executable code 1035, which includes instructions that, when executed, cause the processor 1040 to perform various functions described herein. In some implementations, in addition to this, the memory 1030 may also include a BIOS, which may control basic hardware or software operations, such as interactions with peripheral components or devices. The code 1035 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1035 may be stored in a non-temporary computer-readable medium (e.g., system memory or other types of memory). In some implementations, the code 1035 may not be directly executable by the processor 1040, but may cause the computer (e.g., when compiled and executed) to perform the functions described herein.

[0220] Processor 1040 may include an intelligent hardware device (e.g., a general-purpose processor, DSP, CPU, microcontroller, ASIC, FPGA, programmable logic device, discrete gate or transistor logic component, discrete hardware component, or any combination thereof). In some implementations, processor 1040 may be configured to operate a memory array using a memory controller. In other implementations, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) so that device 1005 performs various functions (e.g., supporting the use of CMR for mTRP CSI as a function or task of NZP-IMR or CSIIM resources for sTRP CSI). In some implementations, processor 1040 may be a component of a processing system. A processing system generally refers to a system or a series of machines or components that receive inputs and process inputs to generate an output set (which may be passed to other systems or components of, for example, device 1005). For example, the processing system of device 1005 may refer to a system including various other components or subcomponents of device 1005.

[0221] Fig.11 A flow chart illustrating a method 1100 for supporting resource selection for single and multiple TRP CSI reporting is shown. The operations of the method 1100 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1100 may be implemented by a UE 115 or a component thereof as described herein. Figure 7-10 In some examples, UE 115 may execute instruction sets to control functional elements of UE 115 to perform the functions described below. Additionally or alternatively, UE 115 may use dedicated hardware to perform various aspects of the functions described below.

[0222] At block 1105, the UE may receive a configuration including one or more CSI measurement resources associated with a CSI hypothesis set, wherein the CSI hypothesis set corresponds to a TCI state set, or a CSIIM resource, or both. The operations of block 1105 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1105 may be performed as described with reference to Figure 7-10 Describes the configuration components to execute.

[0223] At block 1110, the UE may select a first CSI measurement resource from among the one or more CSI measurement resources for channel measurement based on a CSI hypothesis in a CSI hypothesis set. The operations of block 1110 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1110 may be as described with reference to Figure 7-10 Describes the resource components to execute.

[0224] At block 1115, the UE may select a CSIIM resource or a second CSI measurement resource for interference measurement based on a CSI hypothesis in a CSI hypothesis set. The operations of block 1115 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1115 may be as described with reference to Figure 7-10 Describes the resource components to execute.

[0225] At block 1120, the UE may send a report based on the channel measurement or the interference measurement, or both. The operations of block 1120 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1120 may be described with reference to Figure 7-10 Describes the reporting component to perform.

[0226] Fig.12 A flow chart illustrating a method 1200 for supporting resource selection for single and multiple TRP CSI reporting is shown. The operations of the method 1200 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1200 may be implemented by a UE 115 or a component thereof as described herein. Figure 7-10 In some examples, UE 115 may execute instruction sets to control functional elements of UE 115 to perform the functions described below. Additionally or alternatively, UE 115 may use dedicated hardware to perform various aspects of the functions described below.

[0227] At block 1205, the UE may receive a configuration including one or more CSI-RS port groups associated with a CSI hypothesis set, the CSI hypothesis set corresponding to a TCI state set. The operations of block 1205 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1205 may be performed as described with reference to Figure 7-10 The port component described is executed.

[0228] At block 1210, the UE may select a first CSI-RS port group for channel measurement based on a CSI hypothesis in a CSI hypothesis set. The operations of block 1210 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1210 may be as described with reference to Figure 7-10 The port component described is executed.

[0229] At block 1215, the UE may select a second CSI-RS port group for interference measurement based on a CSI hypothesis in a CSI hypothesis set. The operations of block 1215 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1215 may be as described with reference to Figure 7-10 The port component described is executed.

[0230] At block 1220, the UE may send a report based on the channel measurement or the interference measurement, or both. The operations of block 1220 may be performed according to the methods described herein. In some examples, aspects of the operations of block 1220 may be described with reference to Figure 7-10 Describes the reporting component to perform.

[0231] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more of the methods may be combined.

[0232] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0233] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. As an example, "at least one of: a, b, or c" is intended to cover: a, b, c, ab, ac, bc, and abc.

[0234] The various illustrative logics, logical blocks, modules, circuits, and algorithmic processes described in conjunction with the implementations disclosed herein may be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been generally described and shown in the various illustrative components, blocks, modules, circuits, and processes described above in terms of functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0235] The hardware and data processing apparatus for implementing the various illustrative logics, logic blocks, modules, and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed using a general purpose single-chip or multi-chip processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor or any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration. In some implementations, a particular process or method may be performed by circuits specific to a given function.

[0236] In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware (including the structures disclosed in this specification and their structural equivalents), or any combination thereof. Implementations of the subject matter described in this specification may also be implemented as one or more computer programs (i.e., one or more modules of computer program instructions) encoded on computer storage media to be executed by data processing apparatus or to control the operation of data processing apparatus.

[0237] If implemented in software, the function can be stored as one or more instructions or codes on a computer-readable medium or sent via a computer-readable medium. The process of the method or algorithm disclosed herein can be implemented in a processor executable software module, which can reside on a computer-readable medium. Computer-readable media include both computer storage media and communication media, and communication media include any medium that can transfer a computer program from one place to another. The storage medium can be any available medium that can be accessed by a computer. As an example and not a limitation, such a computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or may be used to store desired program codes in the form of instructions or data structures and any other medium that can be accessed by a computer. In addition, any connection may be appropriately referred to as a computer-readable medium. As used herein, disks and optical disks include compact disks (CDs), laser optical disks, optical disks, digital versatile disks (DVDs), floppy disks and blue-ray disks, wherein disks usually copy data magnetically, and optical disks use lasers to optically copy data. The combination of the above should also be included in the scope of computer-readable media. Additionally, the operations of a method or algorithm may reside as one or any combination or set of codes and instructions on a machine-readable medium and a computer-readable medium, which may be incorporated into a computer program product.

[0238] Various modifications to the implementations described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other implementations without departing from the spirit or scope of this disclosure. Therefore, the claims are not intended to be limited to the implementations shown herein, but rather to be consistent with the broadest scope consistent with this disclosure, the principles disclosed herein, and the novel features.

[0239] In addition, one of ordinary skill in the art will readily recognize that the terms "upper" and "lower" are sometimes used for ease of describing the drawings and indicate relative positions corresponding to the orientation of the drawings on a correctly oriented page, and may not reflect the correct orientation of any device as implemented.

[0240] Certain features described in this specification in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations individually or in any suitable subcombination. Furthermore, while features may be described above as functioning in certain combinations and even initially claimed as such, in some implementations, one or more features from a claimed combination may be removed from the combination, and a claimed combination may involve subcombinations or variations of subcombinations.

[0241] Similarly, although the operations are depicted in a specific order in the figure, this should not be understood as requiring such operations to be performed in the specific order shown or in a sequential order or to perform all the operations shown to achieve the desired result. Further, the accompanying drawings may schematically depict one or more example processes in the form of a flow chart schematic diagram. However, other operations not depicted can be incorporated into the schematically illustrated example process. For example, one or more additional operations can be performed before, after, at the same time, or between any of the operations shown. In some cases, multitasking and parallel processing may be advantageous. In addition, the separation of the various system components in the implementation described above should not be understood as requiring such separation in all implementations, but it should be understood that the described program components and systems can usually be integrated together in a single software product, or be packaged as multiple software products. In addition, other implementations are within the scope of the appended claims. In some implementations, the actions recorded in the claims can be performed in different orders, and the desired results are still achieved.

Claims

1. A method for wireless communication at a device of a user equipment UE, comprising: Receiving a configuration including one or more CSI measurement resources associated with a channel state information (CSI) hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both; selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based at least in part on a CSI hypothesis in the set of CSI hypotheses; selecting the CSIIM resource or a second CSI measurement resource for interference measurement based at least in part on the CSI hypothesis in the CSI hypothesis set; and A report is sent based at least in part on the channel measurement or the interference measurement, or both.

2. The method according to claim 1, wherein: The second CSI measurement resource includes a non-zero power interference measurement resource NZP-IMR or the CSIIM resource.

3. The method according to claim 1, wherein: A first CSI hypothesis in the CSI hypothesis set corresponds to a first TCI state and a second TCI state in the TCI state set for the channel measurement; A second CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state; A third CSI hypothesis in the CSI hypothesis set corresponds to the second TCI state; and The one or more CSI measurement resources include the first CSI measurement resource, or the second CSI measurement resource, or both.

4. The method according to claim 3, further comprising: The first CSI measurement resource for the second CSI hypothesis corresponding to the first TCI state for the channel measurement is selected based at least in part on the configuration.

5. The method according to claim 4, further comprising: determining a configured CSIIM resource for the second CSI hypothesis; as well as Determine to use the CSIIM resource for the interference measurement.

6. The method according to claim 4, wherein: Each CSI-RS port of a non-zero power CSI reference signal NZP CSI-RS associated with the second CSI measurement resource includes a single interference layer, and the method further includes: The second CSI measurement resource is selected as a NZP-IMR for the second CSI hypothesis based at least in part on the dynamic point selection of the second TCI state.

7. The method according to claim 4, further comprising: selecting the second CSI measurement resource as the CSIIM resource for the second CSI hypothesis based at least in part on a dynamic point selection of the second TCI state; as well as An energy ratio associated with the second CSI measurement resource is measured based at least in part on using the second CSI measurement resource as the CSIIM resource for the second CSI hypothesis.

8. The method according to claim 4, further comprising: selecting the second CSI measurement resource as a NZP-IMR for the second CSI hypothesis based at least in part on a dynamic point selection of the second TCI state; estimating an energy ratio associated with each CSI-RS port based at least in part on using the second CSI measurement resource as the NZP-IMR for the second CSI hypothesis; as well as The energy ratio associated with each CSI-RS port is aggregated.

9. The method according to claim 4, further comprising: determining, based at least in part on the dynamic point selection of the second TCI state, that the second CSI measurement resource associated with a non-zero power CSI reference signal NZP CSI-RS port set corresponds to an interference layer set; selecting a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set; and The set of NZP CSI-RS ports is transformed to the set of interference layers in each radio frequency spectrum band or subband based at least in part on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

10. The method according to claim 3, further comprising: Determining dynamic dot blanking of the second TCI state; as well as Interference associated with a non-zero power CSI reference signal NZP CSI-RS port set associated with the second CSI measurement resource is estimated.

11. The method according to claim 3, further comprising: The second CSI measurement resource for the second CSI hypothesis, or the third CSI hypothesis, or both, corresponding to the second TCI state for the channel measurement is selected at least in part based on the configuration, wherein the UE determines at least in part based on the configuration that the CSIIM resource is an additional interference resource.

12. The method according to claim 11, further comprising: determining a configured CSIIM resource for the third CSI hypothesis; as well as Determine to use the CSIIM resource for the interference measurement.

13. The method according to claim 11, further comprising: The second CSI measurement resource is selected as a NZP-IMR for the third CSI hypothesis based at least in part on the dynamic point selection of the first TCI state.

14. The method according to claim 13, wherein: Each CSI-RS port of a non-zero power CSI reference signal NZP CSI-RS associated with the second CSI measurement resource includes a single interference layer, and the method further includes: determining a first power control offset ratio associated with a CSI-RS port for the interference measurement based at least in part on selecting the second CSI measurement resource as the NZP-IMR; and A second power control offset ratio associated with the CSI-RS port used for the channel measurement is determined based at least in part on selecting the second CSI measurement resource, wherein the first power control offset ratio is different from the second power control offset ratio.

15. The method according to claim 11, further comprising: selecting the second CSI measurement resource as the CSIIM resource for the third CSI hypothesis based at least in part on a dynamic point selection of the first TCI state; as well as An energy ratio associated with the second CSI measurement resource is measured based at least in part on using the second CSI measurement resource as the CSIIM resource for the third CSI hypothesis.

16. The method according to claim 11, further comprising: selecting the second CSI measurement resource as a NZP-IMR for the third CSI hypothesis based at least in part on a dynamic point selection of the first TCI state; estimating an energy ratio associated with each CSI-RS port based at least in part on using the second CSI measurement resource as the NZP-IMR for the third CSI hypothesis; as well as The energy ratio associated with each CSI-RS port is aggregated.

17. The method according to claim 11, further comprising: The second CSI measurement resource associated with a non-zero power CSI reference signal NZP CSI-RS port set is determined to correspond to an interference layer set based at least in part on dynamic point selection of the first TCI state, wherein a subset of NZP CSI-RS ports in the NZP CSI-RS port set corresponds to a single interference layer in the interference layer set.

18. The method according to claim 17, further comprising: selecting a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set; transforming the set of NZP CSI-RS ports to the set of interference layers in each radio frequency spectrum band or subband based at least in part on a random precoding operation; as well as An average of the set of NZP CSI-RS ports to the set of interfering layers is determined based at least in part on the transform.

19. The method according to claim 17, further comprising: selecting a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set; as well as The set of NZP CSI-RS ports is transformed to the set of interference layers in each frequency band or subband based at least in part on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

20. An apparatus for wireless communication at an apparatus of a user equipment (UE), comprising: The first interface is configured as: Receiving a configuration including one or more CSI measurement resources associated with a channel state information (CSI) hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both; A processing system configured to: selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based at least in part on a CSI hypothesis in the set of CSI hypotheses; selecting the CSIIM resource or a second CSI measurement resource for interference measurement based at least in part on the CSI hypothesis in the CSI hypothesis set; and Wherein, the first interface or the second interface is configured as: A report is output based at least in part on the channel measurement or the interference measurement, or both.

21. The device according to claim 20, wherein: The second CSI measurement resource includes a non-zero power interference measurement resource NZP-IMR or the CSIIM resource.

22. The apparatus of claim 20, wherein: A first CSI hypothesis in the CSI hypothesis set corresponds to a first TCI state and a second TCI state in the TCI state set for the channel measurement; A second CSI hypothesis in the CSI hypothesis set corresponds to the first TCI state; A third CSI hypothesis in the CSI hypothesis set corresponds to the second TCI state; and The one or more CSI measurement resources include the first CSI measurement resource, or the second CSI measurement resource, or both.

23. The device according to claim 22, wherein: The processing system is also configured to: The first CSI measurement resource for the second CSI hypothesis corresponding to the first TCI state for the channel measurement is selected based at least in part on the configuration.

24. The device according to claim 23, wherein: The processing system is also configured to: determining a configured CSIIM resource for the second CSI hypothesis; and Determine to use the CSIIM resource for the interference measurement.

25. The device according to claim 23, wherein: Each CSI-RS port of a non-zero power CSI reference signal NZP CSI-RS associated with the second CSI measurement resource includes a single interference layer, and the processing system is further configured to: The second CSI measurement resource is selected as a NZP-IMR for the second CSI hypothesis based at least in part on the dynamic point selection of the second TCI state.

26. The device according to claim 23, wherein The processing system is also configured to: selecting the second CSI measurement resource as the CSIIM resource for the second CSI hypothesis based at least in part on a dynamic point selection of the second TCI state; and An energy ratio associated with the second CSI measurement resource is measured based at least in part on using the second CSI measurement resource as the CSIIM resource for the second CSI hypothesis.

27. The device according to claim 23, wherein: The processing system is also configured to: selecting the second CSI measurement resource as a NZP-IMR for the second CSI hypothesis based at least in part on a dynamic point selection of the second TCI state; estimating an energy ratio associated with each CSI-RS port based at least in part on using the second CSI measurement resource as the NZP-IMR for the second CSI hypothesis; as well as The energy ratio associated with each CSI-RS port is aggregated.

28. The device according to claim 23, wherein: The processing system is also configured to: determining, based at least in part on the dynamic point selection of the second TCI state, that the second CSI measurement resource associated with a non-zero power CSI reference signal NZP CSI-RS port set corresponds to an interference layer set; selecting a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set; and The set of NZP CSI-RS ports is transformed to the set of interference layers in each radio frequency spectrum band or subband based at least in part on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

29. The device according to claim 22, wherein: The processing system is also configured to: determining dynamic dot blanking of the second TCI state; and Interference associated with a non-zero power CSI reference signal NZP CSI-RS port set associated with the second CSI measurement resource is estimated.

30. The device according to claim 22, wherein: The processing system is also configured to: The second CSI measurement resource for the second CSI hypothesis, or the third CSI hypothesis, or both, corresponding to the second TCI state for the channel measurement is selected at least in part based on the configuration, wherein the UE determines at least in part based on the configuration that the CSIIM resource is an additional interference resource.

31. The device according to claim 30, wherein The processing system is also configured to: determining a configured CSIIM resource for the third CSI hypothesis; and Determine to use the CSIIM resource for the interference measurement.

32. The device according to claim 30, wherein: The processing system is also configured to: The second CSI measurement resource is selected as a NZP-IMR for the third CSI hypothesis based at least in part on the dynamic point selection of the first TCI state.

33. The device according to claim 32, wherein: Each CSI-RS port of a non-zero power CSI reference signal NZP CSI-RS associated with the second CSI measurement resource includes a single interference layer, and the processing system is further configured to: determining a first power control offset ratio associated with a CSI-RS port for the interference measurement based at least in part on selecting the second CSI measurement resource as the NZP-IMR; as well as A second power control offset ratio associated with the CSI-RS port used for the channel measurement is determined based at least in part on selecting the second CSI measurement resource, wherein the first power control offset ratio is different from the second power control offset ratio.

34. The device according to claim 30, wherein: The processing system is also configured to: selecting the second CSI measurement resource as the CSIIM resource for the third CSI hypothesis based at least in part on a dynamic point selection of the first TCI state; and An energy ratio associated with the second CSI measurement resource is measured based at least in part on using the second CSI measurement resource as the CSIIM resource for the third CSI hypothesis.

35. The device according to claim 30, wherein: The processing system is also configured to: selecting the second CSI measurement resource as a NZP-IMR for the third CSI hypothesis based at least in part on a dynamic point selection of the first TCI state; estimating an energy ratio associated with each CSI-RS port based at least in part on using the second CSI measurement resource as the NZP-IMR for the third CSI hypothesis; as well as The energy ratio associated with each CSI-RS port is aggregated.

36. The device according to claim 30, wherein: The processing system is also configured to: The second CSI measurement resource associated with a non-zero power CSI reference signal NZP CSI-RS port set is determined to correspond to an interference layer set based at least in part on dynamic point selection of the first TCI state, wherein a subset of NZP CSI-RS ports in the NZP CSI-RS port set corresponds to a single interference layer in the interference layer set.

37. The device according to claim 36, wherein The processing system is also configured to: selecting a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set; transforming the set of NZP CSI-RS ports to the set of interference layers in each radio frequency spectrum band or subband based at least in part on a random precoding operation; as well as An average of the set of NZP CSI-RS ports to the set of interfering layers is determined based at least in part on the transform.

38. The device according to claim 36, wherein The processing system is also configured to: selecting a precoding matrix for transforming the NZP CSI-RS port set to the interference layer set; and The set of NZP CSI-RS ports is transformed to the set of interference layers in each frequency band or subband based at least in part on a partially random precoding operation including a first precoding matrix or a second precoding matrix, or a combination thereof.

39. An apparatus for a user equipment UE for wireless communication, comprising: means for receiving a configuration including one or more CSI measurement resources associated with a channel state information (CSI) hypothesis set, wherein the CSI hypothesis set corresponds to a transmission configuration indicator (TCI) state set, or a CSI interference measurement (CSIIM) resource, or both; means for selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based at least in part on a CSI hypothesis in the set of CSI hypotheses; means for selecting the CSIIM resource or a second CSI measurement resource for interference measurement based at least in part on the CSI hypothesis in the CSI hypothesis set; and Means for sending a report based at least in part on the channel measurement or the interference measurement, or both.

40. A non-transitory computer readable medium storing code for wireless communication at a device of a user equipment (UE), the code comprising instructions executable by a processor to: receiving a configuration including one or more CSI measurement resources associated with a set of channel state information (CSI) hypotheses, wherein: The CSI hypothesis set corresponds to a transmission configuration indicator TCI state set, or a CSI interference measurement CSIIM resource, or both; selecting a first CSI measurement resource of the one or more CSI measurement resources for channel measurement based at least in part on a CSI hypothesis in the set of CSI hypotheses; selecting the CSIIM resource or a second CSI measurement resource for interference measurement based at least in part on the CSI hypothesis in the CSI hypothesis set; and A report is sent based at least in part on the channel measurement or the interference measurement, or both.

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