CHANNEL STATE INFORMATION PROCESSING PARAMETERS FOR DYNAMIC NETWORK ENTITY POWER ADAPTATION

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a channel state information (CSI) report configuration including multiple CSI reference signal (CSI-RS) transmit power configurations. The UE may transmit, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. Numerous other aspects are described.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for channel state information processing parameters for dynamic network entity power adaptation.

BACKGROUND

A wireless network may include one or more network entities that support communication for a user equipment (UE) or multiple UEs. A UE may communicate with a network entity via downlink communications and uplink communications. “Downlink” (or “DL”) refers to a communication link from the network entity to the UE, and “uplink” (or “UL”) refers to a communication link from the UE to the network entity.

SUMMARY

Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include receiving, from a network entity, a channel state information (CSI) report configuration including multiple CSI reference signal (CSI-RS) transmit power configurations. The method may include transmitting, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include transmitting, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations. The method may include receiving, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive, from a network entity, a CSI report configuration including multiple CSI-RS transmit power configurations. The one or more processors may be configured to transmit, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to transmit, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations. The one or more processors may be configured to receive, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, from a network entity, a CSI report configuration including multiple CSI-RS transmit power configurations. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network entity. The set of instructions, when executed by one or more processors of the network entity, may cause the network entity to transmit, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations. The set of instructions, when executed by one or more processors of the network entity, may cause the network entity to receive, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving, from a network entity, a CSI report configuration including multiple CSI-RS transmit power configurations. The apparatus may include means for transmitting, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations. The apparatus may include means for receiving, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

DETAILED DESCRIPTION

FIG.1is a diagram illustrating an example of a wireless network100, in accordance with the present disclosure. The wireless network100may be or may include elements of a 5G (e.g., NR) network and/or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. The wireless network100may include one or more network entities110(shown as an NE110a, an NE110b, an NE110c, and an NE110d), a user equipment (UE)120or multiple UEs120(shown as a UE120a, a UE120b, a UE120c, a UE120d, and a UE120e), and/or other network entities. A network entity110is an entity that communicates with UEs120. A network entity110(sometimes referred to as an NE) may include, for example, an NR network entity, an LTE network entity, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmission reception point (TRP), a base station, and/or a disaggregated portion of a base station according to an open radio access network (O-RAN) architecture or the like, such as a centralized unit (CU), a distributed unit (DU), and/or a radio Unit (RU), which are described in more detail in connection withFIG.3. Each network entity110may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term “cell” can refer to a coverage area of a network entity110and/or a network entity subsystem serving this coverage area, depending on the context in which the term is used.

A network entity110may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs120with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs120with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs120having association with the femto cell (e.g., UEs120in a closed subscriber group (CSG)). A network entity110for a macro cell may be referred to as a macro network entity. A network entity110for a pico cell may be referred to as a pico network entity. A network entity110for a femto cell may be referred to as a femto network entity or an in-home network entity. In the example shown inFIG.1, the NE110amay be a macro network entity for a macro cell102a, the NE110bmay be a pico network entity for a pico cell102b, and the NE110cmay be a femto network entity for a femto cell102c. A network entity may support one or multiple (e.g., three) cells.

In some examples, a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a network entity110that is mobile (e.g., a mobile network entity). In some examples, the network entities110may be interconnected to one another and/or to one or more other network entities110or network nodes (not shown) in the wireless network100through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network.

The wireless network100may include one or more relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a network entity110or a UE120) and send a transmission of the data to a downstream station (e.g., a UE120or a network entity110). A relay station may be a UE120that can relay transmissions for other UEs120. In the example shown inFIG.1, the NE110d(e.g., a relay network entity) may communicate with the NE110a(e.g., a macro network entity) and the UE120din order to facilitate communication between the NE110aand the UE120d. A network entity110that relays communications may be referred to as a relay station, a relay network entity, a relay, or the like.

The wireless network100may be a heterogeneous network that includes network entities110of different types, such as macro network entities, pico network entities, femto network entities, relay network entities, or the like. These different types of network entities110may have different transmit power levels, different coverage areas, and/or different impacts on interference in the wireless network100. For example, macro network entities may have a high transmit power level (e.g., 5 to 40 watts) whereas pico network entities, femto network entities, and relay network entities may have lower transmit power levels (e.g., 0.1 to 2 watts).

A network controller130may couple to or communicate with a set of network entities110and may provide coordination and control for these network entities110. The network controller130may communicate with the network entities110via a backhaul communication link. The network entities110may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link.

In some aspects, the UE120may include a communication manager140. As described in more detail elsewhere herein, the communication manager140may receive, from a network entity110, a channel state information (CSI) report configuration including multiple CSI reference signal (CSI-RS) transmit power configurations; and transmit, to the network entity110, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. Additionally, or alternatively, the communication manager140may perform one or more other operations described herein.

In some aspects, the network entity110may include a communication manager150. As described in more detail elsewhere herein, the communication manager150may transmit, to a UE120, a CSI report configuration including multiple CSI-RS transmit power configurations; and receive, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. Additionally, or alternatively, the communication manager150may perform one or more other operations described herein.

FIG.2is a diagram illustrating an example200of a network entity110in communication with a UE120in a wireless network100, in accordance with the present disclosure. The network entity110may be equipped with a set of antennas234athrough234t, such as T antennas (T≥1). The UE120may be equipped with a set of antennas252athrough252r, such as R antennas (R≥1).

The network controller130may include a communication unit294, a controller/processor290, and a memory292. The network controller130may include, for example, one or more devices in a core network. The network controller130may communicate with the network entity110via the communication unit294.

In some aspects, the UE120includes means for receiving, from a network entity110, a CSI report configuration including multiple CSI-RS transmit power configurations; and/or means for transmitting, to the network entity110, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. The means for the UE120to perform operations described herein may include, for example, one or more of communication manager140, antenna252, modem254, MIMO detector256, receive processor258, transmit processor264, TX MIMO processor266, controller/processor280, or memory282.

In some aspects, the network entity110includes means for transmitting, to a UE120, a CSI report configuration including multiple CSI-RS transmit power configurations; and/or means for receiving, from the UE120, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. In some aspects, the means for the network entity110to perform operations described herein may include, for example, one or more of communication manager150, transmit processor220, TX MIMO processor230, modem232, antenna234, MIMO detector236, receive processor238, controller/processor240, memory242, or scheduler246.

FIG.3is a diagram illustrating an example300of an O-RAN architecture, in accordance with the present disclosure. As shown inFIG.3, the O-RAN architecture may include a CU310that communicates with a core network320via a backhaul link. Furthermore, the CU310may communicate with one or more DUs330via respective midhaul links. The DUs330may each communicate with one or more RUs340via respective fronthaul links, and the RUs340may each communicate with respective UEs120via radio frequency (RF) access links. The DUs330and the RUs340may also be referred to as O-RAN DUs (O-DUs)330and O-RAN RUs (O-RUs)340, respectively.

In some aspects, the DUs330and the RUs340may be implemented according to a functional split architecture in which functionality of a network entity110(e.g., a base station, an eNB, or a gNB) is provided by a DU330and one or more RUs340that communicate over a fronthaul link. Accordingly, as described herein, a network entity110may include a DU330and one or more RUs340that may be co-located or geographically distributed. In some aspects, the DU330and the associated RU(s)340may communicate via a fronthaul link to exchange real-time control plane information via a lower layer split (LLS) control plane (LLS-C) interface, to exchange non-real-time management information via an LLS management plane (LLS-M) interface, and/or to exchange user plane information via an LLS user plane (LLS-U) interface.

Accordingly, the DU330may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs340. For example, in some aspects, the DU330may host a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (e.g., forward error correction (FEC) encoding and decoding, scrambling, and/or modulation and demodulation) based at least in part on a lower layer functional split. Higher layer control functions, such as a packet data convergence protocol (PDCP), radio resource control (RRC), and/or service data adaptation protocol (SDAP), may be hosted by the CU310. The RU(s)340controlled by a DU330may correspond to logical nodes that host RF processing functions and low-PHY layer functions (e.g., fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, and/or physical random access channel (PRACH) extraction and filtering) based at least in part on the lower layer functional split. Accordingly, in an O-RAN architecture, the RU(s)340handle all over the air (OTA) communication with a UE120, and real-time and non-real-time aspects of control and user plane communication with the RU(s)340are controlled by the corresponding DU330, which enables the DU(s)330and the CU310to be implemented in a cloud-based RAN architecture.

FIG.4is a diagram illustrating an example400of physical channels and reference signals in a wireless network, in accordance with the present disclosure. As shown inFIG.4, downlink channels and downlink reference signals may carry information from a network entity110to a UE120, and uplink channels and uplink reference signals may carry information from a UE120to a network entity110.

As shown, a downlink channel may include a physical downlink control channel (PDCCH) that carries downlink control information (DCI), a physical downlink shared channel (PDSCH) that carries downlink data, or a physical broadcast channel (PBCH) that carries system information, among other examples. In some aspects, PDSCH communications may be scheduled by PDCCH communications. As further shown, an uplink channel may include a physical uplink control channel (PUCCH) that carries uplink control information (UCI), a physical uplink shared channel (PUSCH) that carries uplink data, or a PRACH used for initial network access, among other examples. In some aspects, the UE120may transmit acknowledgement (ACK) or negative acknowledgement (NACK) feedback (e.g., ACK/NACK feedback or ACK/NACK information) in UCI on the PUCCH and/or the PUSCH.

As further shown, a downlink reference signal may include a synchronization signal block (SSB), a CSI reference signal (CSI-RS), a DMRS, a positioning reference signal (PRS), or a phase tracking reference signal (PTRS), among other examples. As also shown, an uplink reference signal may include a sounding reference signal (SRS), a DMRS, or a PTRS, among other examples.

An SSB may carry information used for initial network acquisition and synchronization, such as a PSS, an SSS, a PBCH, and a PBCH DMRS. An SSB is sometimes referred to as a synchronization signal/PBCH (SS/PBCH) block. In some aspects, the network entity110may transmit multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection.

A CSI-RS may carry information used for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, among other examples. The network entity110may configure a set of CSI-RSs for the UE120, and the UE120may measure the configured set of CSI-RSs. For example, a network entity may configure a set of CSI-RS resources using a CSI reporting setting (e.g., a CSI report configuration), and the UE120may perform a channel measurement, an interference measurement, or the like based on the configured set of CSI-RS resources. In some aspects, the CSI-RS resources may include one or more of a non-zero power (NZP) CSI-RS resource for channel measurement (sometimes referred to as an NZP CMR resource), a CSI-RS resource for interference measurement (sometimes referred to as a CSI-IM resource), or an NZP CSI-RS resource for interference measurement (sometimes referred to as an NZP IMR resource). The CSI reporting setting may configure additional parameters, such as a power offset of an NZP CSI-RS resource element (RE) with respect to an SSS RE (sometimes referred to as powerControlOffsetSS, which may be in decibels (dB)), and/or a power offset of a PDSCH RE with respect to an NZP CSI-RS RE (sometimes referred to as powerControlOffset, which may be in dB). The CSI reporting setting may also configure a type of CSI report to be used, such as one of a periodic CSI report, a semi-persistent CSI report, or an aperiodic CSI report. The CSI reporting setting may be RRC configured per bandwidth part (BWP), and may configure one or more resource sets, each resource set including Ks CSI-RS resources with the same number of CSI-RS ports. When Ks is equal to 1, each CSI-RS resource may contain up to 32 CSI-RS ports. When Ks is equal to 2, each CSI-RS resource may contain up to 16 CSI-RS ports. And when Ks is greater than 2 and less than or equal to 8, each CSI-RS resource may contain up to 8 CSI-RS ports.

Based at least in part on the measurements of the CSI-RSs, the UE120may perform channel estimation and may report channel estimation parameters to the network entity110(e.g., in a CSI report), such as a CQI, a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), a layer indicator (LI), a rank indicator (RI), or an RSRP, among other examples. The network entity110may use the CSI report to select transmission parameters for downlink communications to the UE120, such as a number of transmission layers (e.g., a rank), a precoding matrix (e.g., a precoder), an MCS, or a refined downlink beam (e.g., using a beam refinement procedure or a beam management procedure), among other examples. In some aspects, the UE120may compute certain processing parameters (sometimes referred to as CSI processing parameters) related to the CSI measurements and reporting procedures described above. Aspects of the CSI processing parameters are described in more detail in connection withFIGS.5and6.

A DMRS may carry information used to estimate a radio channel for demodulation of an associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of a DMRS may be specific to a physical channel for which the DMRS is used for estimation. DMRSs are UE-specific, can be beamformed, can be confined in a scheduled resource (e.g., rather than transmitted on a wideband), and can be transmitted only when necessary. As shown, DMRSs are used for both downlink communications and uplink communications.

A PTRS may carry information used to compensate for oscillator phase noise. Typically, the phase noise increases as the oscillator carrier frequency increases. Thus, PTRS can be utilized at high carrier frequencies, such as millimeter wave frequencies, to mitigate phase noise. The PTRS may be used to track the phase of the local oscillator and to enable suppression of phase noise and common phase error (CPE). As shown, PTRSs are used for both downlink communications (e.g., on the PDSCH) and uplink communications (e.g., on the PUSCH).

A PRS may carry information used to enable timing or ranging measurements of the UE120based on signals transmitted by the network entity110to improve observed time difference of arrival (OTDOA) positioning performance. For example, a PRS may be a pseudo-random Quadrature Phase Shift Keying (QPSK) sequence mapped in diagonal patterns with shifts in frequency and time to avoid collision with cell-specific reference signals and control channels (e.g., a PDCCH). In general, a PRS may be designed to improve detectability by the UE120, which may need to detect downlink signals from multiple neighboring network entities in order to perform OTDOA-based positioning. Accordingly, the UE120may receive a PRS from multiple cells (e.g., a reference cell and one or more neighbor cells), and may report a reference signal time difference (RSTD) based on OTDOA measurements associated with the PRSs received from the multiple cells. In some aspects, the network entity110may then calculate a position of the UE120based on the RSTD measurements reported by the UE120.

An SRS may carry information used for uplink channel estimation, which may be used for scheduling, link adaptation, precoder selection, or beam management, among other examples. The network entity110may configure one or more SRS resource sets for the UE120, and the UE120may transmit SRSs on the configured SRS resource sets. An SRS resource set may have a configured usage, such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operations, uplink beam management, among other examples. The network entity110may measure the SRSs, may perform channel estimation based at least in part on the measurements, and may use the SRS measurements to configure communications with the UE120.

FIG.5is a diagram illustrating an example500of computing CSI processing parameters, in accordance with the present disclosure.

In some aspects, the UE120may compute one or more CSI processing parameters in connection with the CSI measuring and reporting procedures described above in connection withFIG.4or similar CSI reporting procedures. For example, the UE120may receive a CSI report configuration (e.g., a CSI reporting setting), and may compute one or more CSI processing parameters in connection with performing measurements or the like associated with the corresponding report. For example, the UE120may compute one or more CSI processing parameters by counting a number of simultaneously occupied CSI processing units (CPUs) associated with a CSI report, a number of simultaneously active CSI resources associated with a CSI report, and/or similar CSI processing parameters.

More particularly,FIG.5illustrates aspects associated with counting a number of simultaneously occupied CPUs associated with a CSI report. In some aspects, the UE120may report to a network entity110the UE120's capability on the number of simultaneous CPUs the UE120can handle, referred to as NCPU. When processing CSI related information, the UE120may keep a running count of occupied CPUs (sometimes referred to as L), which are associated with the processing units that are in use by ongoing CSI reports. Any time a CSI calculation begins, the count, L, may be incremented by OCPU, where OCPUis the load designation of the new CSI process. The load designation for a CSI process (e.g., OCPU) may be rule-based (e.g., set by a wireless standard and/or hard-coded at the UE120) and/or may be indicated by a network entity110configuring the CSI report. For example, OCPUmay be equal to 0 for a CSI report configuration (sometimes referred to as CSI-ReportConfig) associated with a higher layer report quantity parameter (sometimes referred to as reportQuantity) set to “none” and a CSI resource set (sometimes referred to as CSI-RS-ResourceSet) associated with a higher layer tracking reference signal (TRS) parameter (sometimes referred to as trs-Info) configured. OCPUmay be equal to 1 for a CSI report configuration (e.g., CSI-ReportConfig) associated with a higher layer report quantity parameter (e.g., report Quantity) set to “cri-RSRP,” “ssb-Index-RSRP,” “cri-SINR,” “ssb-Index-SINR,” or “none,” and a CSI resource set (e.g., CSI-RS-ResourceSet) with a higher layer TRS parameter (e.g., trs-Info) not configured. For a CSI report configuration (e.g., CSI-ReportConfig) associated with a higher layer report quantity parameter (e.g., reportQuantity) set to “cri-RI-PMI-CQI,” “cri-RI-i1,” “cri-RI-i1-CQI,” “cri-RI-CQI,” or “cri-RI-LI-PMI-CQI,” OCPUmay be equal to NCPUif the following criteria are met: a CSI report is aperiodically triggered without transmitting a PUSCH with either a transport block or a hybrid automatic repeat request (HARQ) ACK or both when L=0 CPUs are occupied, where the CSI corresponds to a single CSI with wideband frequency-granularity and to at most 4 CSI-RS ports in a single resource without CRI report, and where a codebook type parameter (sometimes referred to as codebookType) is set to “typeI-SinglePanel” or where a higher layer report quantity parameter (e.g., reportQuantity) is set to “cri-RI-CQI.” For a CSI report configuration (e.g., CSI-ReportConfig) associated with a higher layer report quantity parameter (e.g., reportQuantity) set to “cri-RI-PMI-CQI,” “cri-RI-i1,” “cri-RI-i1-CQI,” “cri-RI-CQI,” or “cri-RI-LI-PMI-CQI” but the additional criteria described above is not met, OCPUmay be equal to Ks, where Ks is the number of CSI-RS resources in the CSI-RS resource set for channel measurement.

Similarly, when (e.g., any time) a CSI calculation ends, the count, L, is decremented by OCPU(e.g., the load designation of the completed process). At any given time, the NCPU-L unoccupied CPUs may be used to add more CSI reports. Once there are no more unoccupied CPUs available, the UE120may not process more CSI, but instead may send an outdated CSI report (e.g., prior report and/or based on previous measurements) for any CSI requests that are over the limit (e.g., for any CSI reporting settings received that would put L over the limit NCPU, the UE120does not perform additional CSI measurements but instead transmits an outdated CSI report for the corresponding CSI reporting setting).

For example, the line shown by reference number505inFIG.5corresponds to the running count of occupied CPUs, L. In this example, the UE120may be capable of handling six simultaneous CPUs (e.g., NCPU=6). The UE120in this example may receive one or more CSI report configurations (e.g., one or more CSI reporting settings) configuring the UE120to generate five CSI reports, indexed as CSI 1 through CSI 5. The first CSI report (CSI 1), the second CSI report (CSI 2), and the fifth CSI report (CSI 5) may be associated with a load designation of 1 CPU (e.g., OCPU=1), the third CSI report (CSI 3) may be associated with a load designation of 2 CPUs (e.g., OCPU=2), and the fourth CSI report (CSI 4) may be associated with a load designation of 4 CPUs. Accordingly, when the first CSI report is triggered, L is increased by 1, when the second CSI report is triggered, L is again increased by 1 (for a running count of 2 CPUs), and when the third CSI report is triggered, L is increased by 2 (for a running count of 4 CPUs). Thereafter, the first CSI report and the second CSI report may be completed and reported to the network before other CSI reports begin, and thus L may be decreased by 1 CPU for each completed report (for an updated running count of 2 CPUs). However, the fourth CSI report is associated with a load designation of 4, and thus when the fourth CSI report begins and L is increased by 4 (for a running count of 6 CPUs (e.g., the 2 CPUs used for the ongoing third CSI report and the 4 CPUs using for the fourth CSI report)), the UE120has reached the maximum number of simultaneous CPUs the UE120can handle (e.g., NCPU). Thus, when the fifth CSI report is triggered, the UE120has no remaining unoccupied CPUs available, and thus the UE120may not perform additional CSI measurements corresponding to the fifth CSI report. Instead, for the fifth CSI report, the UE120may send an outdated CSI report to the network.

When a CPU becomes occupied for purposes of the running count of occupied CPUs (e.g., L) may depend on a nature of the CSI report (e.g., whether it is periodic, semi-persistent, or aperiodic), and, for periodic or semi-persistent CSI reports, the position of the specific report in a sequence of reports. More particularly, for periodic and semi-persistent CSI reports, for any report other than the first report in a sequence of CSI reports on a PUSCH, a CPU becomes occupied at the latest CSI measurement resource (e.g., a CSI-RS resource, a CSI interference measurement (CSI-IM) resource, or an SSB resource) that is usable for the report, and the CPU is released at the end of the last symbol of the PUCCH or PUSCH carrying the report. Moreover, the latest CSI measurement resource may correspond to the latest CSI measurement resource that is not later than a configured and/or predefined CSI reference resource. If multiple CSI reference resources are configured and/or predefined for a given report and the CSI reference resources do not occur at the same time, then the earliest of the CSI reference resources may be used to determine the latest CSI measurement resource.

For the first report in a sequence of CSI reports on a PUSCH, a CPU becomes occupied at the end of the last symbol of the PDCCH activating the CSI process, and the CPU is released at the end of the last symbol of the PUSCH carrying the first report. Similarly, for an aperiodic CSI report, the CPU becomes occupied at the end of the last symbol of the PDCCH activating the CSI process, and the CPU is released at the end of the last symbol of the PUSCH or PUCCH carrying the report.

Relatedly, in some aspects, a UE120may count a number of simultaneously active CSI-RS resources associated with a CSI report as another example of a CSI processing parameter. More particularly, the UE120may report to a network entity110the UE120's capability on the number of simultaneously active CSI-RS resources that the UE120can handle. This may include reporting a maximum number of simultaneously active NZP CSI-RS resources per component carrier, reporting a maximum total number of ports in all simultaneously active NZP CSI-RS resources per component carrier, reporting a maximum number of simultaneously active NZP CSI-RS resources across all component carriers, and/or reporting a maximum total number of ports in all simultaneously active NZP CSI-RS resources across all component carriers.

When processing CSI related information, the UE120may keep a running count of simultaneously active CSI-RS resources associated with ongoing CSI reports. When a CSI-RS resource becomes active for purposes of the running count of simultaneously active CSI-RS resources may depend on a nature of the CSI-RS resource (e.g., whether it is periodic, semi-persistent, or aperiodic). For an aperiodic CSI-RS resource, the CSI-RS resource and the ports within the resource may become active at the end of the last symbol of the PDCCH carrying the associated CSI trigger, and the CSI-RS resource may become inactive at the end of the last symbol of the PUSCH carrying the associated CSI report. For a periodic CSI-RS resource, the CSI-RS resource and the ports within the resource may become active at the time of the configuration of the CSI-RS resource, and the CSI-RS resource may become inactive at the time of the release of the CSI-RS resource configuration. And for a semi-persistent CSI-RS resource, the CSI-RS resource and the ports within the resource may become active at the time of the activation of the CSI-RS resource, and the CSI-RS resource may become inactive at the time of the deactivation of the CSI-RS resource. Moreover, for any of the above, if a CSI-RS resource is referred N times by one or more CSI reporting settings (e.g., one or more CSI report configurations), the CSI-RS resource the ports with the resource may be counted N times.

While the above-described CSI processing parameters (e.g., the number of CPUs associated with a CSI report and/or a number of simultaneously active CSI-RS resources associated with a CSI report) may correspond to a CSI processing load at the UE120when a single CSI-RS transmit power configuration is implemented (e.g., when a single transmit power is utilized for a configured CSI report), the CSI processing parameters may not accurately correspond to the CSI processing load at the UE120when the CSI report is configured with multiple CSI-RS transmit power configurations. More particularly, a network entity110may be associated with a massive-MIMO active antenna unit (AAU) that includes multiple, co-located panels consisting of multiple antenna ports. Each panel may be equipped with numerous power amplifiers and antenna subsystems, which consume large amounts of power. For example, more than 20% of all expenses associated with a wireless network may be attributed to energy costs necessary to operate the wireless network, and, of those energy costs, over 50% may be attributed to radio access network (RAN) energy costs. Thus, in an effort to reduce energy consumption or the like, a wireless network may dynamically turn off one or more panels, subpanels, or antenna ports associated with a network entity or otherwise perform certain actions to lower power consumption when the cell load is low.

In such aspects, a CSI report configuration (e.g., a CSI reporting setting), may indicate more than one CSI-RS transmit power configuration such that a network entity110may receive CSI for each of multiple potential transmit power levels. For example, the configuration of the CSI report may indicate a first CSI-RS transmit power configuration associated with the network entity110transmitting at full power, and one or more additional CSI-RS transmit power configurations associated with the network entity110transmitting at less than full power (e.g., one or more power settings associated with the network entity110transmitting with less than all of antenna panels or ports during periods of low load, or the like). In some aspects, a CSI report configuration may configure multiple power offsets (e.g., multiple powerControlOffsetSS parameters and/or multiple powerControlOffset parameters) corresponding to each transmit power setting.

In such aspects, the UE120may need to derive CSI for each CSI-RS transmit power configuration and report the CSI for each CSI-RS transmit power configuration to the network entity110. However, legacy CSI processing parameters and requirements (e.g., the number of CPUs associated with a CSI report and/or a number of simultaneously active CSI-RS resources associated with a CSI report, described above) assume a single CSI-RS transmit power configuration per CSI reporting setting. Accordingly, such CSI processing parameters may not accurately reflect a processing load at the UE120, which may be determining and reporting more CSI and consuming more resources than assumed under the legacy CSI processing parameters. This may result in an under-accounted-for CSI processing load, leading to incomplete CSI measurements and reporting, and thus inaccurate or outdated CSI information being reported to the network entity110. Accordingly, the network entity110may not be able to accurately estimate channels associated with the multiple CSI-RS transmit power configurations using the inaccurate or outdated CSI information, resulting in poor link quality and thus increased latency, reduced throughput, and even link failure.

Some techniques and apparatuses described herein enable accurate CSI processing parameter computations that account for multiple CSI-RS transmit power configurations in a given CSI report configuration (e.g., in a given CSI reporting setting). In some aspects, a UE120may receive, from a network entity110, a CSI report configuration that includes multiple CSI-RS transmit power configurations, and the UE120may transmit, to the network entity110, a CSI report in accordance with the configuration of the CSI report. In some aspects, the CSI report may be associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. In this way, a UE may more accurately account for a CSI processing load when configured with multiple CSI-RS transmit power configurations, leading to robust CSI measurements and reports, and thus improved channel quality, decreased latency, increased throughput, and overall more efficient resource utilization.

FIG.6is a diagram of an example600associated with CSI processing parameters for dynamic network entity power adaptation, in accordance with the present disclosure. As shown inFIG.6, a UE120and a network entity110may communicate with one another. In some aspects, the UE120and the network entity110may be part of a wireless network (e.g., wireless network100). The UE120and the network entity110may have established a wireless connection prior to operations shown inFIG.6.

As shown by reference number605, the UE120may transmit, to the network entity110, capability information. The network entity110may receive the capability information from the UE120. In some aspects, the capability information may indicate UE120support for certain CSI processing parameters. For example, in some aspects, the capability information may indicate a number of simultaneous CPUs (e.g., NCPU) that the UE120is capable of processing. Additionally, or alternatively, the capability information may indicate a number of simultaneously active CSI-RS resources the UE120is capable of processing.

As shown by reference number610, the network entity110may transmit, to the UE120, configuration information. The UE120may receive, from the network entity110, the configuration information. In some aspects, the UE120may receive the configuration information via one or more of RRC signaling, one or more MAC control elements (MAC-CEs), and/or DCI, among other examples. In some aspects, the configuration information may include an indication of one or more configuration parameters (e.g., already configured for the UE120and/or previously indicated by the network entity110or other network device) for selection by the UE120, and/or explicit configuration information for the UE120to use to configure the UE120, among other examples.

In some aspects, the configuration information may include a CSI report configuration (e.g., a CSI reporting setting) including multiple CSI-RS transmit power configurations. For example, the configuration information may include a configuration of a first CSI-RS transmit power configuration corresponding to a full-power transmission by the network entity110(e.g., corresponding to a transmission by the network entity110using all available antenna panels and/or ports, or the like), as well as one or more additional CSI-RS transmit power configurations corresponding to a reduced-power transmission by the network entity110(e.g., corresponding to a transmission by the network entity110using less than all available antenna panels and/or ports, or the like, such as when the network entity110may turn off panels, subpanels, and/or ports during periods of low network load). The power used for a reduced-power transmission is less than the power used for the full-power transmission. As another example, the configuration information may include a configuration of a first CSI-RS transmit power configuration corresponding to a high-power transmission by the network entity110, as well as one or more additional CSI-RS transmit power configurations corresponding to a low-power transmission by the network entity110(e.g., corresponding to a transmission by the network entity110using less antenna panels and/or ports, or the like than used for the high-power transmission). In some aspects, the configuration of the multiple CSI-RS transmit power configurations may be associated with multiple configured power offsets, such as multiple powerControlOffsetSS parameters and/or multiple powerControlOffset parameters. The UE120may configure itself based at least in part on the configuration information. In some aspects, the UE120may be configured to perform one or more operations described herein based at least in part on the configuration information.

More particularly, and as shown by reference number615, the UE120may determine at least one CSI processing parameter based at least in part on the multiple CSI-RS transmit power configurations. For example, the at least one CSI processing parameter may include a number of CPUs associated with the CSI report. In such aspects, the number of CPUs associated with the CSI report may be based at least in part on a number of configured CSI-RS resources and a number of the multiple CSI-RS transmit power configurations. In this way, by considering the number of the multiple CSI-RS transmit power configurations in addition to the number of configured CSI-RS resources, the UE120may more accurately determine a processing load associated with the CSI report as compared to legacy CSI reporting procedures, in which it is assumed that only a single CSI-RS transmit power configuration will be employed by the network entity110.

In some aspects, the number of CPUs associated with the CSI report is based at least in part on a product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations. For example, the number of the configured CSI-RS resources may sometimes be referred to as K, and the number of the multiple CSI-RS transmit power configurations may sometimes be referred to as M Accordingly, in some aspects, the number of CPUs associated with the CSI report may be based at least in part on K×M. In some aspects, the number of CPUs associated with the CSI report may be further based at least in part on a CPU scaling factor (sometimes referred to as a) associated with the product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations (e.g., K×M). Put another way, the number of CPUs associated with the CSI report may be based at least in part on α×K×M. In some aspects, the UE120may be hard-coded and/or preconfigured with the CPU scaling factor. In some other aspects, the network node110may configure the UE120with the CPU scaling factor and/or dynamically indicate the CPU scaling factor to the UE120. For example, the network node110may indicate the CPU scaling factor to the UE120via the configuration information described in connection with reference number610, and/or via another RRC communication, MAC-CE communication, DCI communication, or a similar communication.

Moreover, the CPU scaling factor (e.g., a) may be less than or equal to one. More particularly, when the CPU scaling factor is equal to one, the CPU scaling factor may fully account for CPUs used to process the CSI report associated with the multiple CSI-RS transmit power configurations. However, in some aspects, certain CSI processing steps or the like to be performed by the UE120may overlap between the multiple configured CSI-RS transmit power configurations. According, in some aspects, the CPU scaling factor may be configured to be less than one in order to not overestimate a processing load on the UE120, thereby freeing additional resources to be used for determining CSI for other CSI-RS transmit power configurations, or the like. By determining a number of CPUs associated with the CSI report that is based at least in part on at least in part on a product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations (e.g., that is based at least in part on α×K×m), the UE120may appropriately account for occupied computing resources of the UE120associated with generating multiple CSI reports corresponding to the multiple configured power settings.

Additionally, or alternatively, the at least one CSI processing parameter may include a number of simultaneously active CSI-RS resources associated with the CSI report. In some aspects, this may include the UE120determining a number of ports associated with the number of simultaneously active CSI-RS resources associated with the CSI report. In either aspect, and in a similar manner as described above in connection with the UE120determining the number of CPUs associated with the CSI report, the number of simultaneously active CSI-RS resources associated with the CSI report may be based at least in part on a number of the multiple CSI-RS transmit power configurations (e.g., M). Moreover, in some aspects, the number of simultaneously active CSI-RS resources associated with the CSI report may be based at least in part on a resource counting scaling factor (sometimes referred to as β) associated with the number of the multiple CSI-RS transmit power configurations. In some aspects, the UE120may be hard-coded and/or preconfigured with the resource counting scaling factor. In some other aspects, the network node110may configure the UE120with the resource counting scaling factor and/or dynamically indicate the resource counting scaling factor to the UE120. For example, the network node110may indicate the resource counting scaling factor to the UE120via the configuration information described in connection with reference number610, and/or via another RRC communication, MAC-CE communication, DCI communication, or a similar communication. In a similar manner as the CPU scaling factor described above (e.g., a), in some aspects, the resource counting scaling factor (e.g., β) may be less than or equal to one. When the resource counting scaling factor is equal to one, the resource counting factor may fully account for active CSI resources used to process the CSI report associated with the multiple CSI-RS transmit power configurations. However, and as described above, certain CSI processing steps or the like to be performed by the UE120may overlap between the multiple configured CSI-RS transmit power configurations. According, in some aspects, the resource counting scaling factor may be configured to be less than one in order to not overestimate an active CSI resource load, thereby freeing additional CSI resources to be used for determining CSI for other CSI-RS transmit power configurations, or the like.

In some aspects, if a CSI-RS resource is referred to by a CSI reporting setting with multiple CSI-RS transmit power configurations (sometimes referred to as multiple power offset configurations), counting the CSI-RS resources (and, in some aspects, the CSI-RS ports within the CSI-RS resource) for the CSI reporting setting may depend on the number of power offset configurations associated with the CSI-RS resource. Put another way, the CSI-RS resources may be counted according to Cn=Σi=1TβiMi, where βi≤1 is the resource counting scaling factor associated with a group of Miof power offset configurations, and where Σi=1TMi=M. Accordingly, in aspects in which a given CSI-RS resource is referred to Ntimes by one or more CSI reporting settings, the CSI-RS resource may be counted Σn=0N−1Cntimes. By determining a number of simultaneously active CSI-RS resources associated with the CSI report that is based at least in part on the number of the multiple CSI-RS transmit power configurations, the UE120may appropriately account for active CSI-RS resources associated with generating multiple CSI reports corresponding to the multiple configured power settings.

As shown by reference number620, in some aspects, the UE120may determine CSI for each of the multiple CSI-RS transmit power configurations. For example, the UE120may determine CSI for a full-power CSI-RS transmit power configuration (e.g., a configuration in which the network entity110transmits using all available antennas and/or antenna ports) as well as one more reduced-power CSI-RS transmit power configurations (e.g., a configuration in which the network entity110transmits using less than all available antennas and/or antenna ports). In some aspects, each of the multiple CSI-RS transmit power configurations may be associated with a corresponding CSI-RS resource set. That is, the network entity110may configure the UE120with a separate CSI-RS resource set to be used to determine CSI for each transmit CSI-RS transmit power configuration. In such aspects, when determining the CSI for each of the multiple CSI-RS transmit power configurations, the UE120may be configured to assume that a constant CSI-RS transmit power will be used to transmit within each CSI-RS resource within the corresponding CSI-RS resource set.

As shown by reference number625, the UE120may transmit, to the network entity110, the CSI report (e.g., the UE120may transmit, to the network entity110, the CSI report associated with the multiple CSI-RS transmit power configurations). Moreover, in some aspects, the CSI report may be associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations. For example, the CSI report may be based at least in part on the number of CPUs associated with the CSI report and/or number of simultaneously active CSI-RS resources associated with the CSI report, as described above in connection with reference number615.

In some aspects, transmitting the CSI report to the network entity110may include the UE120dropping reporting of CSI associated with at least one of the multiple CSI-RS transmit power configurations based at least in part on the number of CPUs associated with the CSI report exceeding a threshold number of CPUs. For example, as described in connection withFIG.5, in some aspects, a determined number of CPUs associated with a CSI report (e.g., L) may exceed a threshold number of CPUs associated with the UE120(e.g., NCPU). Accordingly, in some aspects, the UE120may not report any new CSI associated with at least one of the multiple CSI-RS transmit power configurations based at least in part on the number of CPUs associated with the CSI report exceeding a threshold number of CPUs, but rather may report previous and/or outdated CSI. Put another way, if determining CSI associated with a certain CSI-RS transmit power configuration would increase a number of CPUs (e.g., L) to exceed a threshold number of CPUs (e.g., NCPU), the UE120may not determine the CSI associated with the corresponding CSI-RS transmit power configuration and instead send a previous and/or outdated CSI associated with the corresponding CSI-RS transmit power configuration.

Moreover, in some aspects, the UE120may be configured with information indicating which CSI should be dropped in such a situation. For example, the UE120may receive configuration information from the network entity110(e.g., as part of the configuration information described in connection with reference number610, or as part of a different configuration message such as via another RRC message received from the network entity110) that indicates the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped. For example, the configuration information may indicate that reporting for one or more reduced-power CSI-RS transmit power configurations should be dropped, but that reporting for the full-power CSI-RS transmit power configuration should not be dropped. In this way, the network entity110may receive CSI for each potential CSI-RS transmit power configuration when the UE120has the resources to provide such CSI, yet the network entity110may be able to flexibly adjust reporting procedures when the configured CSI report exceeds the UE120's capabilities.

FIG.7is a diagram illustrating an example process700performed, for example, by a UE, in accordance with the present disclosure. Example process700is an example where the UE (e.g., UE120) performs operations associated with CSI processing parameters associated with multiple CSI-RS transmit power configurations.

As shown inFIG.7, in some aspects, process700may include receiving, from a network entity, a CSI report configuration including multiple CSI-RS transmit power configurations (block710). For example, the UE (e.g., using communication manager908and/or reception component902, depicted inFIG.9) may receive, from a network entity (e.g., network entity110), a CSI report configuration including multiple CSI-RS transmit power configurations, as described above.

As further shown inFIG.7, in some aspects, process700may include transmitting, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations (block720). For example, the UE (e.g., using communication manager908and/or transmission component904, depicted inFIG.9) may transmit, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations, as described above.

In a first aspect, the at least one CSI processing parameter includes a number of CPUs associated with the CSI report.

In a second aspect, alone or in combination with the first aspect, the number of CPUs associated with the CSI report is based at least in part on a number of configured CSI-RS resources and a number of the multiple CSI-RS transmit power configurations.

In a third aspect, alone or in combination with one or more of the first and second aspects, the number of CPUs associated with the CSI report is based at least in part on a product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the number of CPUs associated with the CSI report is based at least in part on a CPU scaling factor associated with the product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the CPU scaling factor is less than or equal to one.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, each of the multiple CSI-RS transmit power configurations is associated with a corresponding CSI-RS resource set, and CSI for each of the multiple CSI-RS transmit power configurations is based at least in part on a constant CSI-RS transmit power for each CSI-RS resource within the corresponding CSI-RS resource set.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, process700includes dropping reporting of CSI associated with at least one of the multiple CSI-RS transmit power configurations based at least in part on the number of CPUs associated with the CSI report exceeding a threshold number of CPUs.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process700includes receiving a configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped is received via a radio resource control message.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the at least one CSI processing parameter includes a number of simultaneously active CSI-RS resources associated with the CSI report.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the at least one CSI processing parameter further includes a number of ports associated with the number of simultaneously active CSI-RS resources associated with the CSI report.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a number of the multiple CSI-RS transmit power configurations.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a resource counting scaling factor associated with a number of the multiple CSI-RS transmit power configurations.

In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the resource counting scaling factor is less than or equal to one.

FIG.8is a diagram illustrating an example process800performed, for example, by a network entity, in accordance with the present disclosure. Example process800is an example where the network entity (e.g., network entity110) performs operations associated with channel state information processing parameters associated with multiple CSI-RS transmit power configurations.

As shown inFIG.8, in some aspects, process800may include transmitting, to a UE (e.g., UE120), a CSI report configuration including multiple CSI-RS transmit power configurations (block810). For example, the network entity (e.g., using communication manager1008, transmission component1004, and/or configuration component1010depicted inFIG.10) may transmit, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations, as described above.

As further shown inFIG.8, in some aspects, process800may include receiving, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations (block820). For example, the network entity (e.g., using communication manager1008and/or reception component1002, depicted inFIG.10) may receive, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations, as described above.

In a first aspect, the at least one CSI processing parameter includes a number of CPUs associated with the CSI report.

In a second aspect, alone or in combination with the first aspect, the number of CPUs associated with the CSI report is based at least in part on a number of configured CSI-RS resources and a number of the multiple CSI-RS transmit power configurations.

In a third aspect, alone or in combination with one or more of the first and second aspects, the number of CPUs associated with the CSI report is based at least in part on a product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the number of CPUs associated with the CSI report is based at least in part on a CPU scaling factor associated with the product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the CPU scaling factor is less than or equal to one.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, process800includes transmitting, to the UE, a configuration indicating at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped based at least in part on a number of CPUs associated with the CSI report exceeding a threshold number of CPUs.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped is transmitted via a radio resource control message.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the at least one CSI processing parameter includes a number of simultaneously active CSI-RS resources associated with the CSI report.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the at least one CSI processing parameter further includes a number of ports associated with the number of simultaneously active CSI-RS resources associated with the CSI report.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a number of the multiple CSI-RS transmit power configurations.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a resource counting scaling factor associated with a number of the multiple CSI-RS transmit power configurations.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the resource counting scaling factor is less than or equal to one.

FIG.9is a diagram of an example apparatus900for wireless communication, in accordance with the present disclosure. The apparatus900may be a UE (e.g., UE120), or a UE may include the apparatus900. In some aspects, the apparatus900includes a reception component902and a transmission component904, which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus900may communicate with another apparatus906(such as a UE, a base station, or another wireless communication device) using the reception component902and the transmission component904. As further shown, the apparatus900may include the communication manager908(e.g., communication manager140). The communication manager908may include a CSI processing component910, among other examples.

The reception component902may receive, from a network entity, a CSI report configuration including multiple CSI-RS transmit power configurations. The transmission component904may transmit, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

The CSI processing component910may determine CSI for each of the multiple CSI-RS transmit power configurations, wherein each of the multiple CSI-RS transmit power configurations is associated with a corresponding CSI-RS resource set, and wherein determining the CSI for each of the multiple CSI-RS transmit power configurations is based at least in part on assuming a constant CSI-RS transmit power for each CSI-RS resource within the corresponding CSI-RS resource set.

The CSI processing component910may drop reporting of CSI associated with at least one of the multiple CSI-RS transmit power configurations based at least in part on the number of CPUs associated with the CSI report exceeding a threshold number of CPUs.

The reception component902may receive a configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped.

FIG.10is a diagram of an example apparatus1000for wireless communication, in accordance with the present disclosure. The apparatus1000may be a network entity (e.g., network entity110), or a network entity may include the apparatus1000. In some aspects, the apparatus1000includes a reception component1002and a transmission component1004, which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus1000may communicate with another apparatus1006(such as a UE, a base station, or another wireless communication device) using the reception component1002and the transmission component1004. As further shown, the apparatus1000may include the communication manager1008(e.g., communication manager150). The communication manager1008may include a configuration component1010, among other examples.

The transmission component1004and/or the configuration component1010may transmit, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations. The reception component1002may receive, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

The transmission component1004and/or the configuration component1010may transmit, to the UE, a configuration indicating at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped based at least in part on a number of CPUs associated with the CSI report exceeding a threshold number of CPUs.

Aspect 1: A method of wireless communication performed by a UE, comprising: receiving, from a network entity, a CSI report configuration including multiple CSI-RS transmit power configurations; and transmitting, to the network entity, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Aspect 2: The method of Aspect 1, wherein the at least one CSI processing parameter includes a number of CPUs associated with the CSI report.

Aspect 3: The method of Aspect 2, wherein the number of CPUs associated with the CSI report is based at least in part on a number of configured CSI-RS resources and a number of the multiple CSI-RS transmit power configurations.

Aspect 4: The method of Aspect 3, wherein the number of CPUs associated with the CSI report is based at least in part on a product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

Aspect 5: The method of Aspect 4, wherein the number of CPUs associated with the CSI report is based at least in part on a CPU scaling factor associated with the product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

Aspect 6: The method of Aspect 5, wherein the CPU scaling factor is less than or equal to one.

Aspect 7: The method of any of Aspects 2-6, wherein each of the multiple CSI-RS transmit power configurations is associated with a corresponding CSI-RS resource set, and wherein CSI for each of the multiple CSI-RS transmit power configurations is based at least in part on a constant CSI-RS transmit power for each CSI-RS resource within the corresponding CSI-RS resource set.

Aspect 8: The method of any of Aspects 2-7, further comprising dropping reporting of CSI associated with at least one of the multiple CSI-RS transmit power configurations based at least in part on the number of CPUs associated with the CSI report exceeding a threshold number of CPUs.

Aspect 9: The method of Aspect 8, further comprising receiving a configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped.

Aspect 10: The method of Aspect 9, wherein the configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped is received via a radio resource control message.

Aspect 11: The method of any of Aspects 1-10, wherein the at least one CSI processing parameter includes a number of simultaneously active CSI-RS resources associated with the CSI report.

Aspect 12: The method of Aspect 11, wherein the at least one CSI processing parameter further includes a number of ports associated with the number of simultaneously active CSI-RS resources associated with the CSI report.

Aspect 13: The method of any of Aspects 11-12, wherein the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a number of the multiple CSI-RS transmit power configurations.

Aspect 14: The method of Aspect 13, wherein the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a resource counting scaling factor associated with a number of the multiple CSI-RS transmit power configurations.

Aspect 15: The method of Aspect 14, wherein the resource counting scaling factor is less than or equal to one.

Aspect 16: A method of wireless communication performed by a network entity, comprising: transmitting, to a UE, a CSI report configuration including multiple CSI-RS transmit power configurations; and receiving, from the UE, the CSI report, wherein the CSI report is associated with at least one CSI processing parameter that is based at least in part on the multiple CSI-RS transmit power configurations.

Aspect 17: The method of Aspect 16, wherein the at least one CSI processing parameter includes a number of CPUs associated with the CSI report.

Aspect 18: The method of Aspect 17, wherein the number of CPUs associated with the CSI report is based at least in part on a number of configured CSI-RS resources and a number of the multiple CSI-RS transmit power configurations.

Aspect 19: The method of Aspect 18, wherein the number of CPUs associated with the CSI report is based at least in part on a product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

Aspect 20: The method of Aspect 19, wherein the number of CPUs associated with the CSI report is based at least in part on a CPU scaling factor associated with the product of the number of the configured CSI-RS resources and the number of the multiple CSI-RS transmit power configurations.

Aspect 21: The method of Aspect 20, wherein the CPU scaling factor is less than or equal to one.

Aspect 22: The method of any of Aspects 17-21, further comprising transmitting, to the UE, a configuration indicating at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped based at least in part on a number of CPUs associated with the CSI report exceeding a threshold number of CPUs.

Aspect 23: The method of Aspect 22, wherein the configuration indicating the at least one of the multiple CSI-RS transmit power configurations for which the reporting of CSI should be dropped is transmitted via a radio resource control message.

Aspect 24: The method of any of Aspects 16-23, wherein the at least one CSI processing parameter includes a number of simultaneously active CSI-RS resources associated with the CSI report.

Aspect 25: The method of Aspect 24, wherein the at least one CSI processing parameter further includes a number of ports associated with the number of simultaneously active CSI-RS resources associated with the CSI report.

Aspect 26: The method of any of Aspects 24-25, wherein the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a number of the multiple CSI-RS transmit power configurations.

Aspect 27: The method of Aspect 26, wherein the number of simultaneously active CSI-RS resources associated with the CSI report is based at least in part on a resource counting scaling factor associated with a number of the multiple CSI-RS transmit power configurations.

Aspect 28: The method of Aspect 27, wherein the resource counting scaling factor is less than or equal to one.