WO2022151022A1

WO2022151022A1 - Channel state information joint measurements

Info

Publication number: WO2022151022A1
Application number: PCT/CN2021/071428
Authority: WO
Inventors: Mostafa KHOSHNEVISAN; Chenxi HAO; Xiaoxia Zhang
Original assignee: Qualcomm Incorporated
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2022-07-21

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a first channel state information (CSI) report configuration. The UE may receive, from the base station, a second CSI report configuration. The second CSI report configuration is linked to the first CSI report configuration. The UE may perform one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource. The CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration. Numerous other aspects are described.

Description

CHANNEL STATE INFORMATION JOINT MEASUREMENTS

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for configuring and reporting channel state information joint measurements.

BACKGROUND

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like) . Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) . LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .

A wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) . A UE may communicate with a BS via the downlink and uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit-receive point (TRP) , a New Radio (NR) BS, a 5G Node B, or the like.

The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate on a municipal, national, regional, and even global level. NR, which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.

Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with various aspects of the present disclosure.

Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with various aspects of the present disclosure.

Fig. 3 is a diagram illustrating an example logical architecture of a distributed RAN, in accordance with various aspects of the present disclosure.

Fig. 4 is a diagram illustrating an example of multiple transmit-receive point (multi-TRP) communication, in accordance with various aspects of the present disclosure.

Fig. 5 is a diagram illustrating an example associated with performing channel state information (CSI) joint measurements before a CSI reference resource, in accordance with various aspects of the present disclosure.

Fig. 6 is a diagram illustrating an example associated with occupying CSI processing units (CPUs) while performing CSI joint measurements, in accordance with various aspects of the present disclosure.

Figs. 7, 8, 9, and 10 are diagrams illustrating example processes associated with configuring and reporting CSI joint measurements, in accordance with various aspects of the present disclosure.

Figs. 11 and 12 are block diagrams of example apparatuses for wireless communication, in accordance with various aspects of the present disclosure.

SUMMARY

In some aspects, a user equipment (UE) for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to receive, from a base station, a first channel state information (CSI) report configuration; receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and perform one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

In some aspects, a base station for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to transmit, to a UE, a first CSI report configuration; transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and transmit one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

In some aspects, a UE for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to receive, from a base station, a first CSI report configuration; receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and occupy a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.

In some aspects, a base station for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to receive, from a UE, a message indicating a first quantity of CPUs available to the UE; transmit, to the UE, a first CSI report configuration; and transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration, wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.

In some aspects, a method of wireless communication performed by a UE includes receiving, from a base station, a first CSI report configuration; receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

In some aspects, a method of wireless communication performed by a base station includes transmitting, to a UE, a first CSI report configuration; transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

In some aspects, a method of wireless communication performed by a UE includes receiving, from a base station, a first CSI report configuration; receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and occupying a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.

In some aspects, a method of wireless communication performed by a base station includes receiving, from a UE, a message indicating a first quantity of CPUs available to the UE; transmitting, to the UE, a first CSI report configuration; and transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration, wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.

In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to receive, from a base station, a first CSI report configuration; receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and perform one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to transmit, to a UE, a first CSI report configuration; transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and transmit one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to receive, from a base station, a first CSI report configuration; receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and occupy a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.

In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to receive, from a UE, a message indicating a first quantity of CPUs available to the UE; transmit, to the UE, a first CSI report configuration; and transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration, wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.

In some aspects, an apparatus for wireless communication includes means for receiving, from a base station, a first CSI report configuration; means for receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and means for performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

In some aspects, an apparatus for wireless communication includes means for transmitting, to a UE, a first CSI report configuration; means for transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and means for transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

In some aspects, an apparatus for wireless communication includes means for receiving, from a base station, a first CSI report configuration; means for receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and means for occupying a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.

In some aspects, an apparatus for wireless communication includes means for receiving, from a UE, a message indicating a first quantity of CPUs available to the UE; means for transmitting, to the UE, a first CSI report configuration; and means for transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration, wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.

Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.

The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, one skilled in the art should appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which is practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented with reference to various apparatuses and techniques. These apparatuses and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, or the like (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or combinations thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

It should be noted that while aspects may be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT) , aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G) .

Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and/or an LTE network, among other examples. The wireless network 100 may include a number of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit-receive point (TRP) , or the like. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.

A BS may 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 UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) . A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In the example shown in Fig. 1, a BS 110a may be a macro BS for a macro cell 102a, a BS 110b may be a pico BS for a pico cell 102b, and a BS 110c may be a femto BS for a femto cell 102c. A BS may support one or multiple (e.g., three) cells. The terms “eNB” , “base station” , “NR BS” , “gNB” , “TRP” , “AP” , “node B” , “5G NB” , and “cell” may be used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS. In some aspects, the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network.

Wireless network 100 may also include relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) . A relay station may also be a UE that can relay transmissions for other UEs. In the example shown in Fig. 1, a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.

Wireless network 100 may be a heterogeneous network that includes BSs of different types, such as macro BSs, pico BSs, femto BSs, relay BSs, or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100. For example, macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .

A network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs. Network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with one another, directly or indirectly, via a wireless or wireline backhaul.

UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, or the like. A UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and/or location tags, that may communicate with a base station, another device (e.g., remote device) , or some other entity. A wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices. Some UEs may be considered a Customer Premises Equipment (CPE) . UE 120 may be included inside a housing that houses components of UE 120, such as processor components and/or memory components. In some aspects, the processor components and the memory components may be coupled together. For example, the processor components (e.g., one or more processors) and the memory components (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and/or electrically coupled.

In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, an air interface, or the like. A frequency may also be referred to as a carrier, a frequency channel, or the like. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) . For example, the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol or a vehicle-to-infrastructure (V2I) protocol) , and/or a mesh network. In this case, the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.

Devices of wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided based on frequency or wavelength into various classes, bands, channels, or the like. For example, devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1) , which may span from 410 MHz to 7.125 GHz, and/or may communicate using an operating band having a second frequency range (FR2) , which may span from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. Thus, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like, if used herein, may broadly represent frequencies less than 6 GHz, frequencies within FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz) . Similarly, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like, if used herein, may broadly represent frequencies within the EHF band, frequencies within FR2, and/or mid-band frequencies (e.g., less than 24.25 GHz) . It is contemplated that the frequencies included in FR1 and FR2 may be modified, and techniques described herein are applicable to those modified frequency ranges.

As indicated above, Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.

Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T ≥ 1 and R ≥ 1.

At base station 110, a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS (s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) ) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS) ) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS) ) . A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

At UE 120, antennas 252a through 252r may receive the downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280. The term “controller/processor” may refer to one or more controllers, one or more processors, or a combination thereof. A channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and/or a channel quality indicator (CQI) parameter, among other examples. In some aspects, one or more components of UE 120 may be included in a housing 284.

Network controller 130 may include communication unit 294, controller/processor 290, and memory 292. Network controller 130 may include, for example, one or more devices in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

Antennas (e.g., antennas 234a through 234t and/or antennas 252a through 252r) may include, or may be included within, one or more antenna panels, antenna groups, sets of antenna elements, and/or antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements. An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include a set of coplanar antenna elements and/or a set of non-coplanar antenna elements. An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include antenna elements within a single housing and/or antenna elements within multiple housings. An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of Fig. 2.

On the uplink, at UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM) , and transmitted to base station 110. In some aspects, a modulator and a demodulator (e.g., MOD/DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and/or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller/processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 5-10.

At base station 110, the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240. Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244. Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications. In some aspects, a modulator and a demodulator (e.g., MOD/DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and/or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller/processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 5-10.

Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with configuring and reporting CSI joint measurements, as described in more detail elsewhere herein. For example, controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, process 900 of Fig. 9, process 1000 of Fig. 10, and/or other processes as described herein.

Memories

242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and/or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, process 900 of Fig. 9, process 1000 of Fig. 10, and/or other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.

In some aspects, a UE (e.g., the UE 120 and/or apparatus 1100 of Fig. 11) may include means for receiving, from a base station (e.g., the base station 110 and/or apparatus 1200 of Fig. 12) , a first CSI report configuration; means for receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and/or means for performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration. The means for the UE to perform operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, or memory 282.

In some aspects, the UE may further include means for transmitting, to the base station, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and/or means for transmitting, to the base station, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.

In some aspects, the UE may further include means for performing one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource; and/or means for performing one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.

In some aspects, a base station (e.g., the base station 110 and/or apparatus 1200 of Fig. 12) may include means for transmitting, to a UE (e.g., the UE 120 and/or apparatus 1100 of Fig. 11) , a first CSI report configuration; means for transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and/or means for transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration. The means for the base station to perform operations described herein may include, for example, one or more of transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.

In some aspects, the base station may further include means for receiving, from the UE, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and/or means for receiving, from the UE, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.

In some aspects, the base station may further include means for transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource; and/or means for transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.

In some aspects, a UE (e.g., the UE 120 and/or apparatus 1100 of Fig. 11) may include means for receiving, from a base station (e.g., the base station 110 and/or apparatus 1200 of Fig. 12) , a first CSI report configuration; means for receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and/or means for occupying a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration. The means for the UE to perform operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, or memory 282.

In some aspects, the UE may further include means for transmitting, to the base station, a first CSI report, based at least in part on the one or more joint measurements, in the first uplink channel; and/or means for transmitting, to the base station, a second CSI report, based at least in part on the one or more joint measurements, in the second uplink channel.

In some aspects, a base station (e.g., the base station 110 and/or apparatus 1200 of Fig. 12) may include means for receiving, from a UE (e.g., the UE 120 and/or apparatus 1100 of Fig. 11) , a message indicating a first quantity of CPUs available to the UE; means for transmitting, to the UE, a first CSI report configuration; and/or means for transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration, wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs. The means for the base station to perform operations described herein may include, for example, one or more of transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.

In some aspects, the base station may further include means for receiving, from the UE, a first CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration; and/or means for receiving, from the UE, a second CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration.

While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of controller/processor 280.

As indicated above, Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.

Fig. 3 illustrates an example logical architecture of a distributed RAN 300, according to aspects of the present disclosure. A 5G access node 305 may include an access node controller 310. The access node controller 310 may be a central unit (CU) of the distributed RAN 300. In some aspects, a backhaul interface to a 5G core network 315 may terminate at the access node controller 310. The 5G core network 315 may include a 5G control plane component 320 and a 5G user plane component 325 (e.g., a 5G gateway) , and the backhaul interface for one or both of the 5G control plane and the 5G user plane may terminate at the access node controller 310. Additionally, or alternatively, a backhaul interface to one or more neighbor access nodes 330 (e.g., another 5G access node 305 and/or an LTE access node) may terminate at the access node controller 310.

The access node controller 310 may include and/or may communicate with one or more TRPs 335 (e.g., via an F1 Control (F1-C) interface and/or an F1 User (F1- U) interface) . A TRP 335 may be a distributed unit (DU) of the distributed RAN 300. In some aspects, a TRP 335 may correspond to a base station 110 described above in connection with Fig. 1. For example, different TRPs 335 may be included in different base stations 110. Additionally, or alternatively, multiple TRPs 335 may be included in a single base station 110. In some aspects, a base station 110 may include a CU (e.g., access node controller 310) and/or one or more DUs (e.g., one or more TRPs 335) . In some cases, a TRP 335 may be referred to as a cell, a panel, an antenna array, or an array.

A TRP 335 may be connected to a single access node controller 310 or to multiple access node controllers 310. In some aspects, a dynamic configuration of split logical functions may be present within the architecture of distributed RAN 300. For example, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and/or a medium access control (MAC) layer may be configured to terminate at the access node controller 310 or at a TRP 335.

In some aspects, multiple TRPs 335 may transmit communications (e.g., the same communication or different communications) in the same transmission time interval (TTI) (e.g., a slot, a mini-slot, a subframe, or a symbol) or different TTIs using different quasi-co-location (QCL) relationships (e.g., different spatial parameters, different transmission configuration indicator (TCI) states, different precoding parameters, and/or different beamforming parameters) . In some aspects, a TCI state may be used to indicate one or more QCL relationships. A TRP 335 may be configured to individually (e.g., using dynamic selection) or jointly (e.g., using joint transmission with one or more other TRPs 335) serve traffic to a UE 120.

As indicated above, Fig. 3 is provided as an example. Other examples may differ from what was described with regard to Fig. 3.

Fig. 4 is a diagram illustrating an example 400 of multi-TRP communication (sometimes referred to as multi-panel communication) , in accordance with various aspects of the present disclosure. Multi-TRP communication may also be referred to as non-coherent joint transmission (NCJT) . As shown in Fig. 4, multiple TRPs 405 may communicate with the same UE 120. A TRP 405 may correspond to a TRP 335 described above in connection with Fig. 3.

The multiple TRPs 405 (shown as TRP A and TRP B) may communicate with the same UE 120 in a coordinated manner (e.g., using coordinated multipoint transmissions) to improve reliability and/or increase throughput. The TRPs 405 may coordinate such communications via an interface between the TRPs 405 (e.g., a backhaul interface and/or an access node controller 310) . The interface may have a smaller delay and/or higher capacity when the TRPs 405 are co-located at the same base station 110 (e.g., when the TRPs 405 are different antenna arrays or panels of the same base station 110) , and may have a larger delay and/or lower capacity (as compared to co-location) when the TRPs 405 are located at different base stations 110. The different TRPs 405 may communicate with the UE 120 using different QCL relationships (e.g., different TCI states) , different demodulation reference signal (DMRS) ports, and/or different layers (e.g., of a multi-layer communication) .

In a first multi-TRP transmission mode (e.g., Mode 1) , a single physical downlink control channel (PDCCH) may be used to schedule downlink data communications for a single physical downlink shared channel (PDSCH) . Mode 1 multi-TRP transmission may also be referred to as single-DCI-based multi-TRP communication. In this case, multiple TRPs 405 (e.g., TRP A and TRP B) may transmit communications to the UE 120 on the same PDSCH. For example, a communication may be transmitted using a single codeword with different spatial layers for different TRPs 405 (e.g., where one codeword maps to a first set of layers transmitted by a first TRP 405 and maps to a second set of layers transmitted by a second TRP 405) . As another example, a communication may be transmitted using multiple codewords, where different codewords are transmitted by different TRPs 405 (e.g., using different sets of layers) . In either case, different TRPs 405 may use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers. For example, a first TRP 405 may use a first QCL relationship or a first TCI state for a first set of DMRS ports corresponding to a first set of layers, and a second TRP 405 may use a second (different) QCL relationship or a second (different) TCI state for a second (different) set of DMRS ports corresponding to a second (different) set of layers. In some aspects, a TCI state in downlink control information (DCI) (e.g., transmitted on the PDCCH, such as DCI format 1_0 or DCI format 1_1) may indicate the first QCL relationship (e.g., by indicating a first TCI state) and the second QCL relationship (e.g., by indicating a second TCI state) . The first and the second TCI states may be indicated using a TCI field in the DCI. In general, the TCI field can indicate a single TCI state (for single-TRP transmission) or multiple TCI states (for multi-TRP transmission as discussed here) in this multi-TRP transmission mode (e.g., Mode 1) . Although described above in connection with space division multiplexing (SDM) (e.g., in which different sets of layers of the PDSCH are associated with different TCI states) , the description similarly applies to Mode 1 multi-TRP transmission that uses frequency division multiplexing (FDM) (e.g., in which different resource block (RB) sets of the PDSCH are associated with different TCI states) , time division multiplexing (TDM) (e.g., in which different repetitions of the PDSCH along the time domain are associated with different TCI states) , and/or another multiplexing scheme.

In a second multi-TRP transmission mode (e.g., Mode 2) , multiple PDCCHs may be used to schedule downlink data communications for multiple corresponding PDSCHs (e.g., one PDCCH for each PDSCH) . Mode 2 multi-TRP transmission may also be referred to as multi-DCI-based multi-TRP communication. In this case, a first PDCCH may schedule a first codeword to be transmitted by a first TRP 405, and a second PDCCH may schedule a second codeword to be transmitted by a second TRP 405. Furthermore, first DCI (e.g., transmitted by the first TRP 405) may schedule a first PDSCH communication associated with a first set of DMRS ports with a first QCL relationship (e.g., indicated by a first TCI state) for the first TRP 405, and second DCI (e.g., transmitted by the second TRP 405) may schedule a second PDSCH communication associated with a second set of DMRS ports with a second QCL relationship (e.g., indicated by a second TCI state) for the second TRP 405. In this case, DCI (e.g., having DCI format 1_0 or DCI format 1_1) may indicate a corresponding TCI state for a TRP 405 corresponding to the DCI. The TCI field of a DCI indicates the corresponding TCI state (e.g., the TCI field of the first DCI indicates the first TCI state and the TCI field of the second DCI indicates the second TCI state) .

As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with respect to Fig. 4.

In some situations, a base station may indicate a CSI report configuration to a UE. For example, the base station may transmit a CSI-ReportConfig data structure (e.g., as defined in 3GPP specifications and/or another standard) to the UE, where the CSI-ReportConfig data structure indicates the CSI report configuration. Generally, the CSI report configuration may link to a channel measurement resource (CMR) set from which the UE selects one CMR to measure. A CMR may indicate one or more resources (e.g., frequencies, times, beams, and/or other physical resources) associated with a reference signal (e.g., a CSI reference signal (CSI-RS) , a synchronization signal block (SSB) , and/or another reference signal) , such that the UE can measure that reference signal. Sometimes, the CSI report configuration may further link to a CSI resource set for interference measurement (CSI-IM set) , where each CMR is associated with no more than one CSI-IM of the CSI-IM set. A CSI-IM may indicate one or more resources (e.g., frequencies, times, beams, and/or other physical resources) that the UE should use to estimate interference associated with the reference signal for the selected CMR. Additionally, or alternatively, the CSI report configuration may further link to a non-zero power interference measurement resource (NZP-IMR, also referred to as IMR) set, where each CMR is associated with the IMR set. An IMR may indicate one or more resources (e.g., frequencies, times, beams, and/or other physical resources) associated with a reference signal (e.g., a CSI-RS, an SSB, and/or another reference signal) , such that the UE can estimate interference using that reference signal. When the UE selects a CMR, along with any corresponding CSI-IM and/or IMR set, the resources identified by that CMR (and, in some cases, CSI-IM and/or IMR set) may be referred to as a “CSI hypothesis, ” and thus the UE transmits a CSI report associated with that CSI hypothesis, based on measurements using those resources, to the base station.

In NR, the CSI report may include a rank indicator (RI) , a CQI, a layer indicator (LI) , and/or a precoding matrix indicator (PMI) , in addition to or in lieu of L1 measurements (e.g., RSRP, RSSI, and/or another L1 measurement) . An RI, a PMI, and/or a CQI may indicate a precoder matrix W, from a set of precoder matrices in a codebook, for the base station to use for downlink communications to the UE. Additionally, or alternatively, an LI may further indicate that a precoder matrix associated with the RI, the PMI, and/or the CQI should not exceed a maximum number of layers that the UE can use (e.g., for MIMO communications) .

The base station may instruct the UE that the CSI report configuration is periodic (e.g., the UE should perform measurements and transmit a CSI report based on those measurements periodically) or semi-persistent (e.g., the UE should perform measurements and transmit a CSI report whenever a trigger, such as receipt of a medium access control (MAC) control element (MAC-CE) and/or downlink control information (DCI) from the base station, is satisfied) . Accordingly, the base station may provide a resource grant for a periodic uplink slot in which the UE may transmit the CSI report to the base station. As used herein, “slot” may refer to a portion of a subframe, which in turn may be a fraction of a radio frame within an LTE, 5G, or other wireless communication structure. In some aspects, a slot may include one or more symbols. Moreover, “symbol” may refer to an OFDM symbol or another similar symbol within a slot.

Sometimes, a CSI report may be associated with multiple CMRs. For example, the base station may include multiple TRPs such that the CSI report is associated with a CMR from one TRP and a CMR from another TRP. In some situations, the UE may still transmit two separate CSI reports to the base station, where each CSI report is associated with one CMR, but the CSI reports may be linked. For example, a selected CMR for the first CSI report may be associated with a first TRP of the base station, and a selected CMR for the second CSI report may be associated with a second TRP of the base station. The UE may use joint measurements (e.g., measurements of both CMRs and, in some cases, associated CSI-IMs and/or an associated IMR set) to generate both CSI reports. Accordingly, the base station may schedule multi-TRP transmissions (e.g., as described above in connection with Fig. 4) based on the selected CMRs and both CSI reports.

Some techniques and apparatuses described herein enable a UE (e.g., UE 120) to determine a CSI reference resource associated with two or more linked CSI report configurations. As a result, the UE 120 may ensure consistency across CSI reports and guarantee sufficient time for the UE 120 to generate the CSI reports by using, when generating the CSI reports, only measurements that are earlier, in time, than the CSI reference signal. Accordingly, the UE 120 can improve quality and/or reliability of communications with a base station (e.g., base station 110) by ensuring consistent and accurate CSI reports for linked CSI report configurations.

Additionally, some techniques and apparatuses described herein enable the UE 120 to occupy CPUs (e.g., consistent with 3GPP specification 38.214 and/or another standard) from the earliest of those measurements until transmission of the CSI reports in order to ensure that the UE 120 has sufficient time and processing power to generate the CSI reports. Accordingly, the UE 120 can improve quality and/or reliability of communications with the base station 110 by ensuring accurate CSI reports for linked CSI report configurations. Additionally, some techniques and apparatuses described herein enable the base station 110 to configure a plurality of CSI report configurations so as not to exceed a quantity of maximum CPUs (e.g., consistent with 3GPP specification 38.214 and/or another standard) available to the UE 120. As a result, the base station 110 may ensure that the UE 120 has sufficient time and processing power to generate CSI reports for those CSI report configurations. Accordingly, the base station 110 can improve quality and/or reliability of communications with the UE 120 by ensuring accurate CSI reports for linked CSI report configurations.

Fig. 5 is a diagram illustrating an example 500 associated with performing CSI joint measurements before a CSI reference resource, in accordance with various aspects of the present disclosure. Example 500 shows a time domain for a UE (e.g., UE 120) . In some aspects, a base station (e.g., base station 110) may transmit, and the UE 120 may receive, a first CSI report configuration and a second CSI report configuration that is linked to the first CSI report configuration. For example, the first CSI report configuration and the second CSI report configuration may be linked such that the UE 120 uses joint measurements, based at least in part on both configurations, to generate a first CSI report associated with the first CSI report configuration and a second CSI report associated with the second CSI report configuration. In some aspects, the first CSI report configuration may be associated with a first TRP of the base station 110 (e.g., TRP A as described above in connection with Fig. 4) , and the second CSI report configuration may be associated with a second TRP of the base station 110 (e.g., TRP B as described above in connection with Fig. 4) .

As shown in Fig. 5, the UE 120 may conduct measurements based at least in part on the first CSI report configuration and the second CSI report configuration. For example, measurements 502 and measurements 504 include joint channel measurements based at least in part on a CMR associated with the first CSI report configuration and a CMR associated with the second CSI report configuration. Additionally, in some aspects, the UE 120 may conduct interference measurements based at least in part on the first CSI report configuration and/or interference measurements based at least in part on the second CSI report configuration. For example, measurements 502 and measurements 504 include interference measurements based at least in part on a CSI-IM and/or an NZP-IMR associated with the first CSI report configuration and a CSI-IM and/or an NZP-IMR associated with the second CSI report configuration. Although the description below relates to two CSI report configurations, the description similarly applies to three linked CSI report configurations, four linked CSI report configurations, and so on. Additionally, or alternatively, although the description below relates to one NZP-IMR associated with each CSI report configuration, the description similarly applies to two NZP-IMRs associated with each CSI report configuration, three NZP-IMRs associated with each CSI report configuration, and so on.

In example 500, the UE 120 may perform measurements 502 before a CSI reference resource 506 and perform measurements 504 after the CSI reference resource 506. Accordingly, because measurements 502 are earlier in time than the CSI reference resource 506, the UE 120 may use measurements 502 to generate the first CSI report associated with the first CSI report configuration and to generate the second CSI report associated with the second CSI report configuration; however, because measurements 504 are later in time than the CSI reference resource 506, the UE 120 will not use measurements 504 to generate the CSI reports.

As shown in Fig. 5, the UE 120 may transmit, and the base station 110 may receive, the first CSI report in a first uplink slot 508. Similarly, the UE 120 may transmit, and the base station 110 may receive, the second CSI report in a second uplink slot 510. In some aspects, the UE 120 may transmit the first CSI report in one or more first symbols of an uplink slot, and transmit the second CSI report in one or more second symbols of the uplink slot. Accordingly, the first uplink slot 508 may be separate from the second uplink slot 510 or may be the same uplink slot as the second uplink slot 510. In some aspects, the first uplink slot may be associated with a first physical uplink channel (e.g., a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , and/or another uplink channel) , and the second uplink slot may be associated with a second physical uplink channel (e.g., a PUCCH, a PUSCH, and/or another uplink channel) . The first uplink channel may be separate from the second uplink channel. For example, the base station 110 may provide the UE 120 with different resource grants for the first uplink channel and the second uplink channel.

In some aspects, the CSI reference resource 506 may include a downlink slot associated with transmissions from the base station 110 to the UE 120. The CSI reference resource 506 may be based at least in part on an amount of time 512 before one of the first uplink slot 508 or the second uplink slot 510. In some aspects, the CSI reference resource 506 may be based at least in part on the amount of time 512 before an earlier of the first uplink slot 508 or the second uplink slot 510. Thus, in example 500, the CSI reference resource 506 is based at least in part on the amount of time 512 before the first uplink slot 508. As an alternative, the CSI reference resource 506 may be based at least in part on the amount of time 512 before a later of the first uplink slot 508 or the second uplink slot 510.

In some aspects, the amount of time 512 may be based at least in part on a first subcarrier spacing (SCS) associated with downlink from the base station 110 to the UE 120 and/or a second SCS associated with uplink to the base station 110 from the UE 120. For example, the amount of time 512 may include a quantity of slots, based at least in part on the first SCS and/or the second SCS, such that the amount of time 512 spans for at least 5 milliseconds. Additionally, or alternatively, the amount of time 512 may be based at least in part on a quantity of linked CSI report configurations received from the base station 110. For example, the amount of time 512 may span 5 milliseconds for two linked CSI report configurations, 6 milliseconds for three linked CSI report configurations, and so on.

As further shown in Fig. 5, the measurements may be periodic in time. Accordingly, CMRs, CSI-IMs, and/or NZP-IMRs associated with the first CSI report configuration and/or the second CSI report configuration may have a same periodicity. As an alternative, the CMRs, CSI-IMs, and/or NZP-IMRs associated with the first CSI report configuration and/or the second CSI report configuration may have periodicities that are related by whole number multiples.

By using techniques as described in connection with Fig. 5, the UE 120 may determine the CSI reference resource associated with two or more linked CSI report configurations. As a result, the UE 120 may ensure consistency across CSI reports and guarantee sufficient time for the UE 120 to generate the CSI reports by using, when generating the CSI reports, only measurements that are earlier, in time, than the CSI reference signal. Accordingly, the UE 120 can improve quality and/or reliability of communications with the base station 110 by ensuring consistent and accurate CSI reports for linked CSI report configurations.

As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.

Fig. 6 is a diagram illustrating an example 600 associated with occupying CPUs while performing CSI joint measurements, in accordance with various aspects of the present disclosure. Example 600 shows a time domain for a UE (e.g., UE 120) . In some aspects, a base station (e.g., base station 110) may transmit, and the UE 120 may receive, a first CSI report configuration and a second CSI report configuration that is linked to the first CSI report configuration. For example, the first CSI report configuration and the second CSI report configuration may be linked such that the UE 120 uses joint measurements, based at least in part on both configurations, to generate a first CSI report associated with the first CSI report configuration and a second CSI report associated with the second CSI report configuration. In some aspects, the first CSI report configuration may be associated with a first TRP of the base station 110 (e.g., TRP A as described above in connection with Fig. 4) , and the second CSI report configuration may be associated with a second TRP of the base station 110 (e.g., TRP B as described above in connection with Fig. 4) . Although the description below relates to two CSI report configurations, the description similarly applies to three linked CSI report configurations, four linked CSI report configurations, and so on.

In some aspects, the base station 110 may determine the first CSI report configuration and the second CSI report configuration based at least in part on a first quantity of CPUs available to the UE 120. For example, the UE 120 may transmit, and the base station 110 may receive, a message (e.g., a UECapabilityInformation message and/or another similar message as defined in 3GPP specifications and/or another standard) indicating the first quantity of CPUs (e.g., as represented by N _CPU and/or another similar representation in 3GPP specifications) . Additionally, the first CSI report configuration and the second CSI report configuration may be associated with a second quantity of CPUs (e.g., as represented by O _CPU and/or another similar representation in 3GPP specifications) . The base station 110 may determine the first CSI report configuration and the second CSI report configuration such that the second quantity of CPUs does not exceed the first quantity of CPUs.

In some aspects, the base station 110 may determine the second quantity of CPUs based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration and a quantity of CSI hypotheses associated with the second CSI report configuration. Accordingly, the UE 120 may use one CPU to perform calculations for each CMR indicated by the first CSI report configuration and one CPU to perform calculations for each CMR indicated by the second report configuration. Thus, if the first CSI report configuration indicates 2 CMRs, and the second CSI report configuration indicates 3 CMRs, the base station 110 may determine the second quantity of CPUs as 5. Any joint hypothesis (e.g., a combination of one CMR indicated by the first CSI report configuration with one CMR indicated by the second CSI report configuration) may be based at least in part on a combination of those calculations rather than additional calculations performed by additional CPUs.

Additionally, or alternatively, the base station 110 may determine the second quantity of CPUs based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor. For example, the UE 120 may use one or more CPUs to perform calculations for each joint CSI hypothesis. Thus, if the first CSI report configuration indicates 2 CMRs, and the second CSI report configuration indicates 3 CMRs, the base station 110 may determine the second quantity of CPUs as 6*X (assuming all pairs of CMRs are valid joint CSI hypotheses) , where X is the scaling factor. In some aspects, the scaling factor may be set to 1 such that the UE 120 uses one CPU to perform calculations for each joint CSI hypothesis. As alternative, the UE 120 may use more than one CPU to perform calculations for each joint CSI hypothesis. For example, the base station 110 and/or the UE 120 may be programmed (or otherwise preconfigured) with a scaling factor of 2, a scaling factor of 3, and so on. In some aspects, any single hypothesis (e.g., one CMR indicated by the first CSI report configuration with no CMRs selected from the second CSI report configuration, or one CMR indicated by the second CSI report configuration with no CMRs selected from the first CSI report configuration) may occupy legacy CPUs (e.g., processing units configured according to an older 3GPP specification version and/or older standard) .

In another example, the UE 120 may use one or more CPUs to perform calculations for each joint CSI hypothesis in combination with a quantity of CSI hypotheses associated with the first CSI report configuration and a quantity of CSI hypotheses associated with the second CSI report configuration. Accordingly, the UE 120 may use one CPU to perform calculations for each CMR indicated by the first CSI report configuration and one CPU to perform calculations for each CMR indicated by the second report configuration, as well as one or more CPUs to perform calculations for each joint CSI hypothesis. Thus, if the first CSI report configuration indicates 2 CMRs, and the second CSI report configuration indicates 3 CMRs, the base station 110 may determine the second quantity of CPUs as 5 + 6*X (assuming all pairs of CMRs are valid joint CSI hypotheses) , where X is the scaling factor (as described above) .

As shown in Fig. 6, the UE 120 may conduct measurements (e.g., to use in the calculations described above) based at least in part on the first CSI report configuration and the second CSI report configuration. For example, measurements 602 include joint channel measurements based at least in part on a CMR associated with the first CSI report configuration and a CMR associated with the second CSI report configuration. Additionally, in some aspects, the UE 120 may conduct interference measurements based at least in part on the first CSI report configuration and/or interference measurements based at least in part on the second CSI report configuration. For example, measurements 602 include interference measurements based at least in part on a CSI-IM and/or an NZP-IMR associated with the first CSI report configuration and a CSI-IM and/or an NZP-IMR associated with the second CSI report configuration. Although the description below relates to one NZP-IMR associated with each CSI report configuration, the description similarly applies to two NZP-IMRs associated with each CSI report configuration, three NZP-IMRs associated with each CSI report configuration, and so on.

As further shown in Fig. 6, the UE 120 may transmit, and the base station 110 may receive, the first CSI report in a first uplink slot 604. Similarly, the UE 120 may transmit, and the base station 110 may receive, the second CSI report in a second uplink slot 606. In some aspects, the UE 120 may transmit the first CSI report in one or more first symbols of an uplink slot, and transmit the second CSI report in one or more second symbols of the uplink slot. Accordingly, the first uplink slot 604 may be separate from the second uplink slot 606 or may be the same uplink slot as the second uplink slot 606. In some aspects, the first uplink slot may be associated with a first physical uplink channel (e.g., a PUCCH, a PUSCH, and/or another uplink channel) , and the second uplink slot may be associated with a second physical uplink channel (e.g., a PUCCH, a PUSCH, and/or another uplink channel) . The first uplink channel may be separate from the second uplink channel. For example, the base station 110 may provide the UE 120 with different resource grants for the first uplink channel and the second uplink channel.

In example 600, the UE 120 may occupy a quantity of CPUs (e.g., the second quantity of CPUs determined as described above) for a period of time 608. By occupying the CPUs, the UE 120 may reserve those CPUs for calculations based at least in part on measurements 602 and refrain from using those CPUs for other calculations. In some aspects, the period of time 608 may begin at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration (e.g., an earliest resource within measurements 602) . Additionally, the period of time 608 may end at a last symbol of the first uplink channel carrying the first CSI report (which may be a symbol within the first uplink slot 604) or a last symbol of the second uplink channel carrying the second CSI report (which may be a symbol within the second uplink slot 606) .

In some aspects, the period of time 608 may end at a last symbol of a later of the first uplink channel or the second uplink channel. Thus, in example 600, the period of time 608 ends at a symbol within the second uplink slot 606. As an alternative, the period of time 608 may end at a last symbol of an earlier of the first uplink channel or the second uplink channel. The UE 120 may release the occupied CPUs to perform other calculations once the period of time 608 expires.

By using techniques as described in connection with Fig. 6, the UE 120 may occupy CPUs from the earliest of one or more joint measurements, associated with the linked CSI report configurations, until transmission of the CSI reports, in order to ensure that the UE 120 has sufficient time and processing power to generate the CSI reports. Accordingly, the UE 120 can improve quality and/or reliability of communications with the base station 110 by ensuring accurate CSI reports for linked CSI report configurations. Additionally, in some aspects, the base station 110 may configure the linked CSI report configurations so as not to exceed the first quantity of CPUs indicated to the base station 110 by the UE 120. As a result, the base station 110 may ensure that the UE 120 has sufficient time and processing power to generate CSI reports for those CSI report configurations. Accordingly, the base station 110 can improve quality and/or reliability of communications with the UE 120 by ensuring accurate CSI reports for the linked CSI report configurations.

Example 500 may be used in combination with example 600. For example, the UE 120 may perform measurements (e.g., joint channel measurements, optionally with one or more interference measurements) before a CSI reference resource (e.g., as described above in connection with Fig. 5) and occupy a quantity of CPUs (e.g., a second quantity as described in connection with Fig. 6) for a period of time starting at an earliest resource of a set of resources used for those measurements and ending at a last symbol of the first uplink channel or the second uplink channel (e.g., as described in connection with Fig. 6) .

As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.

Fig. 7 is a diagram illustrating an example process 700 performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 700 is an example where the UE (e.g., UE 120 and/or apparatus 1100 of Fig. 11) performs operations associated with performing CSI joint measurements.

As shown in Fig. 7, in some aspects, process 700 may include receiving, from a base station (e.g., base station 110 and/or apparatus 1200 of Fig. 12) , a first CSI report configuration (block 710) . For example, the UE (e.g., using reception component 1102, depicted in Fig. 11) may receive the first CSI report configuration, as described above.

As further shown in Fig. 7, in some aspects, process 700 may include receiving, from the base station, a second CSI report configuration (block 720) . For example, the UE (e.g., using reception component 1102) may receive the second CSI report configuration, as described above. In some aspects, the second CSI report configuration is linked to the first CSI report configuration.

As further shown in Fig. 7, in some aspects, process 700 may include performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource (block 730) . For example, the UE (e.g., using measurement component 1108, depicted in Fig. 11) may perform the one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before the CSI reference resource, as described above. In some aspects, the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

In some aspects, and as further shown in Fig. 7, process 700 may further include performing one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource (block 740) . For example, the UE (e.g., using measurement component 1108) may perform the one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource, as described above.

Additionally, or alternatively, and as further shown in Fig. 7, process 700 may further include performing one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource (block 750) . For example, the UE (e.g., using measurement component 1108) may perform the one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource, as described above

In some aspects, and as further shown in Fig. 7, process 700 may further include transmitting, to the base station, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot (block 760) . For example, the UE (e.g., using transmission component 1104, depicted in Fig. 11) may transmit the first CSI report, as described above. In some aspects, the first CSI report may be further based at least in part on one or more interference measurements (e.g., as described above in connection with reference numbers 740 and/or 750) .

Additionally, or alternatively, and as further shown in Fig. 7, process 700 may further include transmitting, to the base station, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot (block 770) . For example, the UE (e.g., using transmission component 1104) may transmit the second CSI report, as described above. In some aspects, the second CSI report may be further based at least in part on one or more interference measurements (e.g., as described above in connection with reference numbers 740 and/or 750) .

Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

In a first aspect, the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.

In a second aspect, alone or in combination with the first aspect, the amount of time is at least 5 milliseconds.

In a third aspect, alone or in combination with one or more of the first and second aspects, the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the first CSI report configuration is associated with a first TRP of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.

Fig. 8 is a diagram illustrating an example process 800 performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 800 is an example where the base station (e.g., base station 110 and/or apparatus 1200 of Fig. 12) performs operations associated with configuring CSI joint measurements.

As shown in Fig. 8, in some aspects, process 800 may include transmitting, to a UE (e.g., UE 120 and/or apparatus 1100 of Fig. 11) , a first CSI report configuration (block 810) . For example, the base station (e.g., using transmission component 1204, depicted in Fig. 12) may transmit the first CSI report configuration, as described above.

As further shown in Fig. 8, in some aspects, process 800 may include transmitting, to the UE, a second CSI report configuration (block 820) . For example, the base station (e.g., using transmission component 1204) may transmit the second CSI report configuration, as described above. In some aspects, the second CSI report configuration is linked to the first CSI report configuration.

As further shown in Fig. 8, in some aspects, process 800 may include transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource (block 830) . For example, the base station (e.g., using transmission component 1204) may transmit the one or more reference signals to the UE to use for the one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before the CSI reference resource, as described above. In some aspects, the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

In some aspects, and as further shown in Fig. 8, process 800 may further include transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource (block 840) . For example, the base station (e.g., using transmission component 1204) may transmit the one or more reference signals to the UE to use for the one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource, as described above.

Additionally, or alternatively, and as further shown in Fig. 8, process 800 may further include transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource (block 850) . For example, the base station (e.g., using transmission component 1204) may transmit the one or more reference signals to the UE to use for the one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource, as described above.

In some aspects, and as further shown in Fig. 8, process 800 may further include receiving, from the UE, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot (block 860) . For example, the base station (e.g., using reception component 1202, depicted in Fig. 12) may receive the first CSI report, as described above. In some aspects, the first CSI report may be further based at least in part on one or more interference measurements (e.g., as described above in connection with reference numbers 840 and/or 850) .

Additionally, or alternatively, and as further shown in Fig. 8, process 800 may further include receiving, from the UE, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot (block 870) . For example, the base station (e.g., using reception component 1202) may receive the second CSI report, as described above. In some aspects, the second CSI report may be further based at least in part on one or more interference measurements (e.g., as described above in connection with reference numbers 840 and/or 850) .

Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.

Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 900 is an example where the UE (e.g., UE 120 and/or apparatus 1100 of Fig. 11) performs operations associated with occupying CPUs during CSI joint measurements.

As shown in Fig. 9, in some aspects, process 900 may include receiving, from a base station (e.g., base station 110 and/or apparatus 1200 of Fig. 12) , a first CSI report configuration (block 910) . For example, the UE (e.g., using reception component 1102, depicted in Fig. 11) may receive the first CSI report configuration, as described above.

As further shown in Fig. 9, in some aspects, process 900 may include receiving, from the base station, a second CSI report configuration (block 920) . For example, the UE (e.g., using reception component 1102) may receive the second CSI report configuration, as described above. In some aspects, the second CSI report configuration is linked to the first CSI report configuration.

As further shown in Fig. 9, in some aspects, process 900 may include occupying a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration (block 930) . For example, the UE (e.g., using reservation component 1110, depicted in Fig. 11) may occupy the quantity of CPUs for the period of time, as described above.

In some aspects, and as further shown in Fig. 9, process 900 may further include transmitting, to the base station, a first CSI report, based at least in part on the one or more joint measurements, in the first uplink channel (block 940) . For example, the UE (e.g., using transmission component 1104, depicted in Fig. 11) may transmit the first CSI report, as described above.

Additionally, or alternatively, and as further shown in Fig. 9, process 900 may further include transmitting, to the base station, a second CSI report, based at least in part on the one or more joint measurements, in the second uplink channel (block 950) . For example, the UE (e.g., using transmission component 1104) may transmit the second CSI report, as described above.

Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

In a first aspect, the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration, a quantity of CSI hypotheses associated with the second CSI report configuration, a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration, or a combination thereof.

In a second aspect, alone or in combination with one or more of the first and second aspects, the one or more joint measurements include one or more channel measurements, based at least in part on the first CSI report configuration, and one or more channel measurements based at least in part on the second CSI report configuration.

In a third aspect, alone or in combination with one or more of the first and second aspects, the one or more joint measurements include one or more interference measurements, based at least in part on the first CSI report configuration.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the one or more joint measurements include one or more interference measurements, based at least in part on the second CSI report configuration.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the period of time ends at a last symbol of a later of the first uplink channel or the second uplink channel.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the period of time ends at a last symbol of an earlier of the first uplink channel or the second uplink channel.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the first CSI report configuration is associated with a first TRP of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Although Fig. 9 shows example blocks of process 900, in some aspects, process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.

Fig. 10 is a diagram illustrating an example process 1000 performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 1000 is an example where the base station (e.g., base station 110 and/or apparatus 1200 of Fig. 12) performs operations associated with configuring CSI joint measurements.

As shown in Fig. 10, in some aspects, process 1000 may include receiving, from a UE (e.g., UE 120 and/or apparatus 1100 of Fig. 11) , a message indicating a first quantity of CPUs available to the UE (block 1010) . For example, the base station (e.g., using reception component 1202, depicted in Fig. 12) may receive the message indicating the first quantity of CPUs, as described above.

As further shown in Fig. 10, in some aspects, process 1000 may include transmitting, to the UE, a first CSI report configuration (block 1020) . For example, the base station (e.g., using transmission component 1204, depicted in Fig. 12) may transmit the first CSI report configuration, as described above.

As further shown in Fig. 10, in some aspects, process 1000 may include transmitting, to the UE, a second CSI report configuration (block 1030) . For example, the base station (e.g., using transmission component 1204) may transmit the second CSI report configuration, as described above. In some aspects, the second CSI report configuration is linked to the first CSI report configuration. Additionally, the first CSI report configuration and the second CSI report configuration may be associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.

In some aspects, and as further shown in Fig. 10, process 1000 may further include receiving, from the UE, a first CSI report, based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration (block 1040) . For example, the base station (e.g., using reception component 1202) may receive the first CSI report, as described above.

Additionally, or alternatively, and as further shown in Fig. 10, process 1000 may further include receiving, from the UE, a second CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration (block 1050) . For example, the base station (e.g., using reception component 1202) may receive the second CSI report, as described above.

Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

In a first aspect, the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration and a quantity of CSI hypotheses associated with the second CSI report configuration.

In a second aspect, alone or in combination with the first aspect, the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor.

In a third aspect, alone or in combination with one or more of the first and second aspects, the first CSI report configuration is associated with a first TRP of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Although Fig. 10 shows example blocks of process 1000, in some aspects, process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 10. Additionally, or alternatively, two or more of the blocks of process 1000 may be performed in parallel.

Fig. 11 is a block diagram of an example apparatus 1100 for wireless communication. The apparatus 1100 may be a UE, or a UE may include the apparatus 1100. In some aspects, the apparatus 1100 includes a reception component 1102 and a transmission component 1104, 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 apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using the reception component 1102 and the transmission component 1104. As further shown, the apparatus 1100 may include one or more of a measurement component 1108 or a reservation component 1110, among other examples.

In some aspects, the apparatus 1100 may be configured to perform one or more operations described herein in connection with Figs. 5-6. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7, process 900 of Fig. 9, or a combination thereof. In some aspects, the apparatus 1100 and/or one or more components shown in Fig. 11 may include one or more components of the UE described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 11 may be implemented within one or more components described above in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.

The reception component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1106. The reception component 1102 may provide received communications to one or more other components of the apparatus 1100. In some aspects, the reception component 1102 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1106. In some aspects, the reception component 1102 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

The transmission component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106. In some aspects, one or more other components of the apparatus 1106 may generate communications and may provide the generated communications to the transmission component 1104 for transmission to the apparatus 1106. In some aspects, the transmission component 1104 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1106. In some aspects, the transmission component 1104 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. In some aspects, the transmission component 1104 may be co-located with the reception component 1102 in a transceiver.

In some aspects, the reception component 1102 may receive, from the apparatus 1106, a first CSI report configuration. Additionally, the reception component 1102 may receive, from the apparatus 1106, a second CSI report configuration that is linked to the first CSI report configuration.

Accordingly, the measurement component 1108 may perform one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource. In some aspects, the measurement component 1108 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. The CSI reference resource may be based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

In some aspects, the measurement component 1108 may additionally perform one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource. Additionally, or alternatively, the measurement component 1108 may perform one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.

Additionally, or alternatively, the reservation component 1110 may occupy a quantity of CPUs for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration. In some aspects, the measurement component 1108 may include a receive processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

In some aspects, the transmission component 1104 may transmit, to the apparatus 1106, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot and/or the first uplink channel. Additionally, or alternatively, the transmission component 1104 may transmit, to the apparatus 1106, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot and/or the second uplink channel.

The number and arrangement of components shown in Fig. 11 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 11. Furthermore, two or more components shown in Fig. 11 may be implemented within a single component, or a single component shown in Fig. 11 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 11 may perform one or more functions described as being performed by another set of components shown in Fig. 11.

Fig. 12 is a block diagram of an example apparatus 1200 for wireless communication. The apparatus 1200 may be a base station, or a base station may include the apparatus 1200. In some aspects, the apparatus 1200 includes a reception component 1202 and a transmission component 1204, 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 apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using the reception component 1202 and the transmission component 1204. As further shown, the apparatus 1200 may include a determination component 1208, among other examples.

In some aspects, the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs. 5-6. Additionally, or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as process 800 of Fig. 8, process 1000 of Fig. 10, or a combination thereof. In some aspects, the apparatus 1200 and/or one or more components shown in Fig. 12 may include one or more components of the base station described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 12 may be implemented within one or more components described above in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.

The reception component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1206. The reception component 1202 may provide received communications to one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1206. In some aspects, the reception component 1202 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.

The transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1206. In some aspects, one or more other components of the apparatus 1206 may generate communications and may provide the generated communications to the transmission component 1204 for transmission to the apparatus 1206. In some aspects, the transmission component 1204 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1206. In some aspects, the transmission component 1204 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. In some aspects, the transmission component 1204 may be co-located with the reception component 1202 in a transceiver.

In some aspects, the transmission component 1204 may transmit, to the apparatus 1206, a first CSI report configuration. Additionally, the transmission component 1204 may transmit, to the apparatus 1206, a second CSI report configuration that is linked to the first CSI report configuration. Furthermore, the transmission component 1204 may transmit one or more reference signals to the apparatus 1206 to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource. The CSI reference resource may be based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

In some aspects, the transmission component 1204 may further transmit one or more reference signals to the apparatus 1206 to use for one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource. Additionally, or alternatively, the transmission component 1204 may transmit one or more reference signals to the apparatus 1206 to use for one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.

Additionally, or alternatively, the reception component 1202 may receive, from the apparatus 1206, a message indicating a first quantity of CPUs available to the apparatus 1206. Accordingly, the determination component 1208 may determine a second quantity of CPUs associated with the first CSI report configuration and the second CSI report configuration and that does not exceed the first quantity of CPUs. In some aspects, the determination component 1208 may include a transmit processor, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.

In some aspects, the reception component 1202 may receive, from the apparatus 1206, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot and/or the first uplink channel. Additionally, or alternatively, the reception component 1202 may receive, from the apparatus 1206, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot and/or the second uplink channel.

The number and arrangement of components shown in Fig. 12 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 12. Furthermore, two or more components shown in Fig. 12 may be implemented within a single component, or a single component shown in Fig. 12 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 12 may perform one or more functions described as being performed by another set of components shown in Fig. 12.

The following provides an overview of some aspects of the present disclosure:

Aspect 1: A method of wireless communication performed by a user equipment (UE) , comprising: receiving, from a base station, a first channel state information (CSI) report configuration; receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.

Aspect 2: The method of aspect 1, further comprising: transmitting, to the base station, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and transmitting, to the base station, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.

Aspect 3: The method of any of aspects 1 through 2, further comprising: performing one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource.

Aspect 4: The method of any of aspects 1 through 3, further comprising: performing one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.

Aspect 5: The method of any of aspects 1 through 4, wherein the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.

Aspect 6: The method of any of aspects 1 through 5, wherein the amount of time is at least 5 milliseconds.

Aspect 7: The method of any of aspects 1 through 6, wherein the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.

Aspect 8: The method of any of aspects 1 through 7, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Aspect 9: A method of wireless communication performed by a base station, comprising: transmitting, to a user equipment (UE) , a first channel state information (CSI) report configuration; transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.

Aspect 10: The method of aspect 9, further comprising: receiving, from the UE, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and receiving, from the UE, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.

Aspect 11: The method of any of aspects 9 through 10, further comprising: transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource.

Aspect 12: The method of any of aspects 9 through 11, further comprising: transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.

Aspect 13: The method of any of aspects 9 through 12, wherein the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.

Aspect 14: The method of any of aspects 9 through 13, wherein the amount of time is at least 5 milliseconds.

Aspect 15: The method of any of aspects 9 through 14, wherein the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.

Aspect 16: The method of any of aspects 9 through 15, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Aspect 17: A method of wireless communication performed by a user equipment (UE) , comprising: receiving, from a base station, a first channel state information (CSI) report configuration; receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and occupying a quantity of CSI processing units (CPUs) for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.

Aspect 18: The method of aspect 17, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration, a quantity of CSI hypotheses associated with the second CSI report configuration, a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration, or a combination thereof.

Aspect 19: The method of any of aspects 17 through 18, further comprising: transmitting, to the base station, a first CSI report, based at least in part on the one or more joint measurements, in the first uplink channel; and transmitting, to the base station, a second CSI report, based at least in part on the one or more joint measurements, in the second uplink channel.

Aspect 20: The method of any of aspects 17 through 19, wherein the one or more joint measurements include one or more channel measurements, based at least in part on the first CSI report configuration, and one or more channel measurements based at least in part on the second CSI report configuration.

Aspect 21: The method of any of aspects 17 through 20, wherein the one or more joint measurements include one or more interference measurements, based at least in part on the first CSI report configuration.

Aspect 22: The method of any of aspects 17 through 21, wherein the one or more joint measurements include one or more interference measurements, based at least in part on the second CSI report configuration.

Aspect 23: The method of any of aspects 17 through 22, wherein the period of time ends at a last symbol of a later of the first uplink channel or the second uplink channel.

Aspect 24: The method of any of aspects 17 through 22, wherein the period of time ends at a last symbol of an earlier of the first uplink channel or the second uplink channel.

Aspect 25: The method of any of aspects 17 through 24, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Aspect 26: A method of wireless communication performed by a base station, comprising: receiving, from a user equipment (UE) , a message indicating a first quantity of channel state information (CSI) processing units (CPUs) available to the UE; transmitting, to the UE, a first CSI report configuration; and transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration, wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.

Aspect 27: The method of aspect 26, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration and a quantity of CSI hypotheses associated with the second CSI report configuration.

Aspect 28: The method of any of aspects 26 through 27, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor.

Aspect 29: The method of any of aspects 26 through 28, further comprising: receiving, from the UE, a first CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration; and receiving, from the UE, a second CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration.

Aspect 30: The method of any of aspects 26 through 29, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.

Aspect 31: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 1-8.

Aspect 32: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 1-8.

Aspect 33: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 1-8.

Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 1-8.

Aspect 35: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 1-8.

Aspect 36: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 9-16.

Aspect 37: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 9-16.

Aspect 38: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 9-16.

Aspect 39: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 9-16.

Aspect 40: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 9-16.

Aspect 41: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 17-25.

Aspect 42: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 17-25.

Aspect 43: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 17-25.

Aspect 44: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 17-25.

Aspect 45: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 17-25.

Aspect 46: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 26-30.

Aspect 47: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more aspects of aspects 26-30.

Aspect 48: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 26-30.

Aspect 49: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 26-30.

Aspect 50: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 26-30.

The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a processor is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to specific software code-it being understood that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, or the like.

Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. 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, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .

No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) , and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” or the like are intended to be open-ended terms. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) .

Claims

A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

receive, from a base station, a first channel state information (CSI) report configuration;

receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

perform one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.
The UE of claim 1, wherein the memory and the one or more processors are further configured to:

transmit, to the base station, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and

transmit, to the base station, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.
The UE of claim 1 or claim 2, wherein the memory and the one or more processors are further configured to:

perform one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource.
The UE of any of claims 1 through 3, wherein the memory and the one or more processors are further configured to:

perform one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.
The UE of any of claims 1 through 4, wherein the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.
The UE of any of claims 1 through 5, wherein the amount of time is at least 5 milliseconds.
The UE of any of claims 1 through 6, wherein the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.
The UE of any of claims 1 through 7, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A base station for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

transmit, to a user equipment (UE) , a first channel state information (CSI) report configuration;

transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

transmit one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.
The base station of claim 9, wherein the memory and the one or more processors are further configured to:

receive, from the UE, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and

receive, from the UE, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.
The base station of claim 9 or claim 10, wherein the memory and the one or more processors are further configured to:

transmit one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource.
The base station of any of claims 9 through 11, wherein the memory and the one or more processors are further configured to:

transmit one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.
The base station of any of claims 9 through 12, wherein the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.
The base station of any of claims 9 through 13, wherein the amount of time is at least 5 milliseconds.
The base station of any of claims 9 through 14, wherein the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.
The base station of any of claims 9 through 15, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

receive, from a base station, a first channel state information (CSI) report configuration;

receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

occupy a quantity of CSI processing units (CPUs) for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.
The UE of claim 17, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration, a quantity of CSI hypotheses associated with the second CSI report configuration, a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration, or a combination thereof.
The UE of claim 17 or claim 18, wherein the memory and the one or more processors are further configured to:

transmit, to the base station, a first CSI report, based at least in part on the one or more joint measurements, in the first uplink channel; and

transmit, to the base station, a second CSI report, based at least in part on the one or more joint measurements, in the second uplink channel.
The UE of any of claims 17 through 19, wherein the one or more joint measurements include one or more channel measurements, based at least in part on the first CSI report configuration, and one or more channel measurements based at least in part on the second CSI report configuration.
The UE of any of claims 17 through 20, wherein the one or more joint measurements include one or more interference measurements, based at least in part on the first CSI report configuration.
The UE of any of claims 17 through 21, wherein the one or more joint measurements include one or more interference measurements, based at least in part on the second CSI report configuration.
The UE of any of claims 17 through 22, wherein the period of time ends at a last symbol of a later of the first uplink channel or the second uplink channel.
The UE of any of claims 17 through 22, wherein the period of time ends at a last symbol of an earlier of the first uplink channel or the second uplink channel.
The UE of any of claims 17 through 24, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A base station for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

receive, from a user equipment (UE) , a message indicating a first quantity of channel state information (CSI) processing units (CPUs) available to the UE;

transmit, to the UE, a first CSI report configuration; and

transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration,

wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.
The base station of claim 26, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration and a quantity of CSI hypotheses associated with the second CSI report configuration.
The base station of claim 27, wherein the quantity of CPUs is further based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor.
The base station of claim 26, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor.
The base station of any of claims 26 through 29, wherein the memory and the one or more processors are further configured to:

receive, from the UE, a first CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration; and

receive, from the UE, a second CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration.
The base station of any of claims 26 through 30, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A method of wireless communication performed by a user equipment (UE) , comprising:

receiving, from a base station, a first channel state information (CSI) report configuration;

receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.
The method of claim 32, further comprising:

transmitting, to the base station, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and

transmitting, to the base station, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.
The method of claim 32 or claim 33, further comprising:

performing one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource.
The method of any of claims 32 through 34, further comprising:

performing one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.
The method of any of claims 32 through 35, wherein the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.
The method of any of claims 32 through 36, wherein the amount of time is at least 5 milliseconds.
The method of any of claims 32 through 37, wherein the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.
The method of any of claims 32 through 38, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A method of wireless communication performed by a base station, comprising:

transmitting, to a user equipment (UE) , a first channel state information (CSI) report configuration;

transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.
The method of claim 40, further comprising:

receiving, from the UE, a first CSI report, based at least in part on the one or more joint channel measurements, in the first uplink slot; and

receiving, from the UE, a second CSI report, based at least in part on the one or more joint channel measurements, in the second uplink slot.
The method of claim 40 or claim 41, further comprising:

transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the first CSI report configuration, before the CSI reference resource.
The method of any of claims 40 through 42, further comprising:

transmitting one or more reference signals to the UE to use for one or more interference measurements, based at least in part on the second CSI report configuration, before the CSI reference resource.
The method of any of claims 40 through 43, wherein the CSI reference resource is based at least in part on an amount of time before an earlier of the first uplink slot or the second uplink slot.
The method of any of claims 40 through 44, wherein the amount of time is at least 5 milliseconds.
The method of any of claims 40 through 45, wherein the first uplink slot is associated with a first physical uplink channel, and the second uplink slot is associated with a second physical uplink channel.
The method of any of claims 40 through 46, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A method of wireless communication performed by a user equipment (UE) , comprising:

receiving, from a base station, a first channel state information (CSI) report configuration;

receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

occupying a quantity of CSI processing units (CPUs) for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.
The method of claim 48, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration, a quantity of CSI hypotheses associated with the second CSI report configuration, a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration, or a combination thereof.
The method of claim 48 or claim 49, further comprising:

transmitting, to the base station, a first CSI report, based at least in part on the one or more joint measurements, in the first uplink channel; and

transmitting, to the base station, a second CSI report, based at least in part on the one or more joint measurements, in the second uplink channel.
The method of any of claims 48 through 50, wherein the one or more joint measurements include one or more channel measurements, based at least in part on the first CSI report configuration, and one or more channel measurements based at least in part on the second CSI report configuration.
The method of any of claims 48 through 51, wherein the one or more joint measurements include one or more interference measurements, based at least in part on the first CSI report configuration.
The method of any of claims 48 through 52, wherein the one or more joint measurements include one or more interference measurements, based at least in part on the second CSI report configuration.
The method of any of claims 48 through 53, wherein the period of time ends at a last symbol of a later of the first uplink channel or the second uplink channel.
The method of any of claims 48 through 53, wherein the period of time ends at a last symbol of an earlier of the first uplink channel or the second uplink channel.
The method of any of claims 48 through 55, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A method of wireless communication performed by a base station, comprising:

receiving, from a user equipment (UE) , a message indicating a first quantity of channel state information (CSI) processing units (CPUs) available to the UE;

transmitting, to the UE, a first CSI report configuration; and

transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration,

wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.
The method of claim 57, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with the first CSI report configuration and a quantity of CSI hypotheses associated with the second CSI report configuration.
The method of claim 58, wherein the quantity of CPUs is further based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor.
The method of claim 57, wherein the quantity of CPUs is based at least in part on a quantity of CSI hypotheses associated with both the first CSI report configuration and the second CSI report configuration and a scaling factor.
The method of any of claims 57 through 60, further comprising:

receiving, from the UE, a first CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration; and

receiving, from the UE, a second CSI report based at least in part on one or more joint channel measurements that are based at least in part on the first CSI report configuration and the second CSI report configuration.
The method of any of claims 57 through 61, wherein the first CSI report configuration is associated with a first transmit-receive point (TRP) of the base station, and the second CSI report configuration is associated with a second TRP of the base station.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE) , cause the UE to:

receive, from a base station, a first channel state information (CSI) report configuration;

receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

perform one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a base station, cause the base station to:

transmit, to a user equipment (UE) , a first channel state information (CSI) report configuration;

transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

transmit one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE) , cause the UE to:

receive, from a base station, a first channel state information (CSI) report configuration;

receive, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

occupy a quantity of CSI processing units (CPUs) for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a base station, cause the base station to:

receive, from a user equipment (UE) , a message indicating a first quantity of channel state information (CSI) processing units (CPUs) available to the UE;

transmit, to the UE, a first CSI report configuration; and

transmit, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration,

wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.
An apparatus for wireless communication, comprising:

means for receiving, from a base station, a first channel state information (CSI) report configuration;

means for receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

means for performing one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with the second CSI report configuration.
An apparatus for wireless communication, comprising:

means for transmitting, to a user equipment (UE) , a first channel state information (CSI) report configuration;

means for transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

means for transmitting one or more reference signals to the UE to use for one or more joint channel measurements, based at least in part on the first CSI report configuration and the second CSI report configuration, before a CSI reference resource, wherein the CSI reference resource is based at least in part on an amount of time before one of a first uplink slot associated with the first CSI report configuration or a second uplink slot associated with for the second CSI report configuration.
An apparatus for wireless communication, comprising:

means for receiving, from a base station, a first channel state information (CSI) report configuration;

means for receiving, from the base station, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration; and

means for occupying a quantity of CSI processing units (CPUs) for a period of time beginning at an earliest resource of a set of resources used for one or more joint measurements based at least in part on the first CSI report configuration and the second CSI report configuration, and ending at a last symbol of a first uplink channel carrying a first CSI report associated with the first CSI report configuration or a last symbol of a second uplink channel carrying a second CSI report associated with the second CSI report configuration.
An apparatus for wireless communication, comprising:

means for receiving, from a user equipment (UE) , a message indicating a first quantity of channel state information (CSI) processing units (CPUs) available to the UE;

means for transmitting, to the UE, a first CSI report configuration; and

means for transmitting, to the UE, a second CSI report configuration, wherein the second CSI report configuration is linked to the first CSI report configuration,

wherein the first CSI report configuration and the second CSI report configuration are associated with a second quantity of CPUs that does not exceed the first quantity of CPUs.