Patent Publication Number: US-2023135716-A1

Title: Procedure for combining hd/fd csi in one report on pusch/pucch transmissions

Description:
BACKGROUND 
     Technical Field 
     The present disclosure relates generally to wireless communication, and more particularly, implementing a procedure for combining half-duplex (HD) and full-duplex (FD) channel state information (CSI) into a single report on physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmissions. 
     Introduction 
     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. 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, and time division synchronous code division multiple access (TD-SCDMA) systems. 
     These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of a continuous mobile broadband evolution promulgated by Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (such as with Internet of Things (IoT)), and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra reliable low latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There exists a need for further improvements in 5G NR technology. 
     SUMMARY 
     The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later. 
     An example implementation includes a method of wireless communication at a user equipment (UE) comprising receiving uplink control information (UCI) configuration information from a base station, the UCI configuration information including one or more parameters for multiplexing half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report; receiving, from the base station, a first reference signal associated with a HD mode; receiving, from the base station, a second reference signal associated with a FD mode; and transmitting, to the base station, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. 
     The disclosure also provides an apparatus (e.g., a UE) including a memory storing computer-executable instructions and at least one processor configured to execute the computer-executable instructions to receive uplink control information (UCI) configuration information from a base station, the UCI configuration information including one or more parameters for multiplexing half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report; receive, from the base station, a first reference signal associated with a HD mode; receive, from the base station, a second reference signal associated with a FD mode; and transmit, to the base station, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. In addition, the disclosure also provides an apparatus including means for performing the above method, and a non-transitory computer-readable medium storing computer-executable instructions for performing the above method. 
     An example implementation includes a method of wireless communication at a base station comprising generating uplink control information (UCI) configuration information for a user equipment, the UCI configuration information including one or more parameters for configuring a UE to multiplex half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report; transmitting the UCI configuration to the UE; transmitting, to the UE, a first reference signal associated with a HD mode and a second reference signal associated with a FD mode; and receiving, from the UE, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. 
     The disclosure also provides an apparatus (e.g., a base station) including a memory storing computer-executable instructions and at least one processor configured to execute the computer-executable instructions to generate uplink control information (UCI) configuration information for a user equipment, the UCI configuration information including one or more parameters for configuring a UE to multiplex half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report; transmit the UCI configuration information to the UE; transmit, to the UE, a first reference signal associated with a HD mode and a second reference signal associated with a FD mode; and receive, from the UE, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. In addition, the disclosure also provides an apparatus including means for performing the above method, and a non-transitory computer-readable medium storing computer-executable instructions for performing the above method. 
     To the accomplishment of the foregoing and related ends, the one or more aspects include the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail some illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a diagram illustrating an example of a wireless communications system and an access network, in accordance with some aspects of the present disclosure. 
         FIG.  2 A  is a diagram illustrating an example of a first 5G/NR frame, in accordance with some aspects of the present disclosure. 
         FIG.  2 B  is a diagram illustrating an example of DL channels within a 5G/NR subframe, in accordance with some aspects of the present disclosure. 
         FIG.  2 C  is a diagram illustrating an example of a second 5G/NR frame, in accordance with some aspects of the present disclosure. 
         FIG.  2 D  is a diagram illustrating an example of UL channels within a 5G/NR subframe, in accordance with some aspects of the present disclosure. 
         FIG.  3    is a diagram illustrating an example of a base station and a UE in an access network, in accordance with some aspects of the present disclosure. 
         FIG.  4    is a diagram illustrating an example of communications of a base station and a UE, in accordance with some aspects of the present disclosure. 
         FIG.  5    is a diagram illustrating an example of a hardware implementation for a base station employing a processing system, in accordance with some aspects of the present disclosure. 
         FIG.  6    is a diagram illustrating an example of a hardware implementation for a UE employing a processing system, in accordance with some aspects of the present disclosure. 
         FIG.  7    is a flowchart of an example method of implementing a procedure for combining half-duplex and full-duplex CSI into a report a base station, in accordance with some aspects of the present disclosure. 
         FIG.  8    is a flowchart of an example method of implementing a procedure for combining half-duplex and full-duplex CSI into a report at a UE, in accordance with some aspects of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The detailed description set forth below in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. However, it will be apparent to a person having ordinary skill in the art that these concepts may be practiced without these specific details. In some instances, structures and components are shown in block diagram form in order to avoid obscuring such concepts. 
     Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, among other examples (collectively referred to as “elements”). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. 
     By way of example, an element, or any portion of an element, or any combination of elements may be implemented as a “processing system” that includes one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on a chip (SoC), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionality described throughout this disclosure. One or more processors in the processing system may execute software. Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. 
     Accordingly, in one or more examples, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media, which may be referred to as non-transitory computer-readable media. Non-transitory computer-readable media may exclude transitory signals. Storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include a random-access memory (RAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of the aforementioned types of computer-readable media, or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer. 
     Various implementations relate generally to a procedure for configuring a UE to combine half-duplex (HD) and full-duplex (FD) channel state information (CSI) into a single CSI report. As used herein, in some aspects, “full-duplex” communications may refer to transmitting and receiving data at the same time using a single transceiver component. FD communications provide various benefits over HD communications (e.g., increased network capacity). The channel characteristics of downlink transmissions are different for HD communications in comparison to FD communications because of the existence of cross-link interference (CLI) and self-interference. As such, in some aspects, a UE may be configured to report HD CSI and FD CSI to a base station. As described in detail herein, a base station may determine UCI configuration information including one or more parameters for multiplexing half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report, and transmit the UCI configuration information to the UE to cause the UE to generate and transmit a single CSI report having HD CSI and FD CSI. Accordingly, in some aspects, a UE may be configured to reduce overhead, inefficient use of time and frequency resources, and/or power consumption, while improving spectrum efficiency by enabling a base station to configure a UE to provide a combined HD CSI and FD CSI report. 
       FIG.  1    is a diagram illustrating an example of a wireless communications system and an access network  100 . The wireless communications system (also referred to as a wireless wide area network (WWAN)) includes base stations  102 , UEs  104 , an Evolved Packet Core (EPC)  160 , and another core network  190  (for example, a 5G Core (5GC)). The base stations  102  may include macrocells (high power cellular base station) or small cells (low power cellular base station). The macrocells include base stations. The small cells include femtocells, picocells, and microcells. 
     In an aspect, a base station  102  may include a reporting management component  198  configured to determine parameters  414  for configuring combined half-duplex and full-duplex CSI reporting by UEs  104 . Further, in an aspect, a UE  104  may include a reporting component  140  configured to generate combined half-duplex and full duplex CSI reports based on parameters received from a base station  102 . 
     The base stations  102  configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC  160  through first backhaul links  132  (for example, an S1 interface). The base stations  102  configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) may interface with core network  190  through second backhaul links  184 . In addition to other functions, the base stations  102  may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (for example, handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment trace, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations  102  may communicate directly or indirectly (for example, through the EPC  160  or core network  190 ) with each other over third backhaul links  134  (for example, X2 interface). The third backhaul links  134  may be wired or wireless. 
     The base stations  102  may wirelessly communicate with the UEs  104 . Each of the base stations  102  may provide communication coverage for a respective geographic coverage area  110 . There may be overlapping geographic coverage areas  110 . For example, the small cell  102   a  may have a coverage area  110   a  that overlaps the coverage area  110  of one or more macro base stations  102 . A network that includes both small cell and macrocells may be known as a heterogeneous network. A heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs), which may provide service to a restricted group known as a closed subscriber group (CSG). The communication links  120  between the base stations  102  and the UEs  104  may include uplink (UL) (also referred to as reverse link) transmissions from a UE  104  to a base station  102  or downlink (DL) (also referred to as forward link) transmissions from a base station  102  to a UE  104 . The communication links  120  may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, or transmit diversity. The communication links may be through one or more carriers. The base stations  102  / UEs  104  may use spectrum up to Y MHz (for example, 5, 10, 15, 20, 100, 400 MHz, among other examples) bandwidth per carrier allocated in a carrier aggregation of up to a total of Yx MHz (x component carriers) used for transmission in each direction. The carriers may or may not be adjacent to each other. Allocation of carriers may be asymmetric with respect to DL and UL (for example, more or fewer carriers may be allocated for DL than for UL). The component carriers may include a primary component carrier and one or more secondary component carriers. A primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell). 
     Some UEs  104  may communicate with each other using device-to-device (D2D) communication link  158 . The D2D communication link  158  may use the DL/UL WWAN spectrum. The D2D communication link  158  may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be through a variety of wireless D2D communications systems, such as for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR. 
     The wireless communications system may further include aWi-Fi access point (AP)  150  in communication with Wi-Fi stations (STAs)  152  via communication links  154  in a 5 GHz unlicensed frequency spectrum. When communicating in an unlicensed frequency spectrum, the STAs  152  / AP  150  may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available. 
     The small cell  102   a  may operate in a licensed or an unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell  102   a  may employ NR and use the same 5 GHz unlicensed frequency spectrum as used by the Wi-Fi AP  150 . The small cell  102   a , employing NR in an unlicensed frequency spectrum, may boost coverage to or increase capacity of the access network. 
     A base station  102 , whether a small cell  102   a  or a large cell (for example, macro base station), may include or be referred to as an eNB, gNodeB (gNB), or another type of base station. Some base stations, such as gNB  180  may operate in one or more frequency bands within the electromagnetic spectrum. The electromagnetic spectrum is often subdivided, based on frequency/wavelength, into various classes, bands, channels, etc. In 5G NR two initial operating bands have been identified as frequency range designations FR1 (416 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with regard to FR2, which is often referred to (interchangeably) as a “millimeter wave” (mmW) band in documents and articles, 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. 
     With the above aspects in mind, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like if used herein may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like if used herein may broadly represent frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band. Communications using the mmW radio frequency band have extremely high path loss and a short range. The mmW base station  180  may utilize beamforming  182  with the UE  104  to compensate for the path loss and short range. The base station  180  and the UE  104  may each include a plurality of antennas, such as antenna elements, antenna panels, or antenna arrays to facilitate the beamforming. 
     The base station  180  may transmit a beamformed signal to the UE  104  in one or more transmit directions  182   a . The UE  104  may receive the beamformed signal from the base station  180  in one or more receive directions  182   b . The UE  104  may also transmit a beamformed signal to the base station  180  in one or more transmit directions. The base station  180  may receive the beamformed signal from the UE  104  in one or more receive directions. The base station  180  / UE  104  may perform beam training to determine the best receive and transmit directions for each of the base station  180  / UE  104 . The transmit and receive directions for the base station  180  may or may not be the same. The transmit and receive directions for the UE  104  may or may not be the same. 
     The EPC  160  may include a Mobility Management Entity (MME)  162 , other MMEs  164 , a Serving Gateway  166 , a Multimedia Broadcast Multicast Service (MBMS) Gateway  168 , a Broadcast Multicast Service Center (BM-SC)  170 , and a Packet Data Network (PDN) Gateway  172 . The MME  162  may be in communication with a Home Subscriber Server (HSS)  174 . The MME  162  is the control node that processes the signaling between the UEs  104  and the EPC  160 . Generally, the MME  162  provides bearer and connection management. All user Internet protocol (IP) packets are transferred through the Serving Gateway  166 , which itself is connected to the PDN Gateway  172 . The PDN Gateway  172  provides UE IP address allocation as well as other functions. The PDN Gateway  172  and the BM-SC  170  are connected to the IP Services  176 . The IP Services  176  may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service, or other IP services. The BM-SC  170  may provide functions for MBMS user service provisioning and delivery. The BM-SC  170  may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS Gateway  168  may be used to distribute MBMS traffic to the base stations  102  belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and may be responsible for session management (start/stop) and for collecting eMBMS related charging information. 
     The core network  190  may include an Access and Mobility Management Function (AMF)  192 , other AMFs  193 , a Session Management Function (SMF)  194 , and a User Plane Function (UPF)  195 . The AMF  192  may be in communication with a Unified Data Management (UDM)  196 . The AMF  192  is the control node that processes the signaling between the UEs  104  and the core network  190 . Generally, the AMF  192  provides QoS flow and session management. All user Internet protocol (IP) packets are transferred through the UPF  195 . The UPF  195  provides UE IP address allocation as well as other functions. The UPF  195  is connected to the IP Services  197 . The IP Services  197  may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service, or other IP services. 
     The base station may include or be referred to as a gNB, Node B, eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit reception point (TRP), or some other suitable terminology. The base station  102  provides an access point to the EPC  160  or core network  190  for a UE  104 . Examples of UEs  104  include a satellite phone, a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (for example, MP3 player), a camera, a game console, a tablet, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor/actuator, a display, or any other similar functioning device. Some of the UEs  104  may be referred to as IoT devices (for example, parking meter, gas pump, toaster, vehicles, heart monitor, among other examples). The UE  104  may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. 
     Although the following description may be focused on 5G NR, the concepts described herein may be applicable to other similar areas, such as LTE, LTE-A, CDMA, GSM, and other wireless technologies. 
       FIGS.  2 A- 2 D  include example diagrams  200 ,  230 ,  250 , and  280  illustrating examples structures that may be used for wireless communication by the base station  102  and the UE  104 , e.g., for 5G NR communication.  FIG.  2 A  is a diagram  200  illustrating an example of a first subframe within a 5G/NR frame structure.  FIG.  2 B  is a diagram  230  illustrating an example of DL channels within a 5G/NR subframe.  FIG.  2 C  is a diagram  250  illustrating an example of a second subframe within a 5G/NR frame structure.  FIG.  2 D  is a diagram  280  illustrating an example of UL channels within a 5G/NR subframe. The 5G/NR frame structure may be FDD in which for a particular set of subcarriers (carrier system bandwidth), subframes within the set of subcarriers are dedicated for either DL or UL, or may be TDD in which for a particular set of subcarriers (carrier system bandwidth), subframes within the set of subcarriers are dedicated for both DL and UL. In the examples provided by  FIGS.  2 A,  2 C , the 5G/NR frame structure is assumed to be TDD, with subframe 4 being configured with slot format 28 (with mostly DL), where D is DL, U is UL, and X is flexible for use between DL/UL, and subframe 3 being configured with slot format 34 (with mostly UL). While subframes 3, 4 are shown with slot formats 34, 28, respectively, any particular subframe may be configured with any of the various available slot formats 0-61. Slot formats 0, 1 are all DL, UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. UEs are configured with the slot format (dynamically through DL control information (DCI), or semi-statically/statically through radio resource control (RRC) signaling) through a received slot format indicator (SFI). Note that the description presented herein applies also to a 5G/NR frame structure that is TDD. 
     Other wireless communication technologies may have a different frame structure or different channels. A frame (10 ms) may be divided into 10 equally sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include mini-slots, which may include 7, 4, or 2 symbols. Each slot may include 7 or 14 symbols, depending on the slot configuration. For slot configuration 0, each slot may include 14 symbols, and for slot configuration 1, each slot may include 7 symbols. The symbols on DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. The symbols on UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also referred to as single carrier frequency-division multiple access (SC-FDMA) symbols) (for power limited scenarios; limited to a single stream transmission). The number of slots within a subframe is based on the slot configuration and the numerology. For slot configuration 0, different numerologies µ 0 to 5 allow for 1, 2, 4, 8, 16, and 32 slots, respectively, per subframe. For slot configuration 1, different numerologies 0 to 2 allow for 2, 4, and 8 slots, respectively, per subframe. For slot configuration 0 and numerology µ, there are 14 symbols/slot and 2 µ slots/subframe. The subcarrier spacing and symbol length/duration are a function of the numerology. The subcarrier spacing may be equal to 2 µ  * 15 kHz, where µ is the numerology 0 to 5. As such, the numerology µ=0 has a subcarrier spacing of 15 kHz and the numerology µ=5 has a subcarrier spacing of 480 kHz. The symbol length/duration is inversely related to the subcarrier spacing.  FIGS.  2 A- 2 D  provide an example of slot configuration 0 with 14 symbols per slot and numerology µ=0 with 1 slot per subframe. The subcarrier spacing is 15 kHz and symbol duration is approximately 66.7 µs. 
     A resource grid may be used to represent the frame structure. Each time slot includes a resource block (RB) (also referred to as physical RBs (PRBs)) that extends 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme. 
     As illustrated in  FIG.  2 A , some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include demodulation RS (DM-RS) (indicated as Rx for one particular configuration, where 100x is the port number, but other DM-RS configurations are possible) and channel state information reference signals (CSI-RS) for channel estimation at the UE. The RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PT-RS). 
       FIG.  2 B  illustrates an example of various DL channels within a subframe of a frame. The physical downlink control channel (PDCCH) carries DCI within one or more CCE, each CCE including nine RE groups (REGs), each REG including four consecutive REs in an OFDM symbol. A primary synchronization signal (PSS) may be within symbol 2 of particular subframes of a frame. The PSS is used by a UE  104  to determine subframe/symbol timing and a physical layer identity. A secondary synchronization signal (SSS) may be within symbol 4 of particular subframes of a frame. The SSS is used by a UE to determine a physical layer cell identity group number and radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine a physical cell identifier (PCI). Based on the PCI, the UE can determine the locations of the aforementioned DM-RS. The physical broadcast channel (PBCH), which carries a master information block (MIB), may be logically grouped with the PSS and SSS to form a synchronization signal (SS)/PBCH block (SSB). The MIB provides a number of RBs in the system bandwidth and a system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs), and paging messages. 
     As illustrated in  FIG.  2 C , some of the REs carry DM-RS (indicated as R for one particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may transmit DM-RS for the physical uplink control channel (PUCCH) and DM-RS for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first one or two symbols of the PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the particular PUCCH format used. Although not shown, the UE may transmit sounding reference signals (SRS). The SRS may be used by a base station for channel quality estimation to enable frequency-dependent scheduling on the UL. 
       FIG.  2 D  illustrates an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and HARQ ACK/NACK feedback. The PUSCH carries data, and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), or UCI. 
       FIG.  3    is a block diagram of a base station  102 / 180  in communication with a UE  104  in an access network. In the DL, IP packets from the EPC  160  may be provided to a controller/processor  375 . The controller/processor  375  implements layer 3 and layer 2 functionality. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller/processor  375  provides RRC layer functionality associated with broadcasting of system information (such as MIB, SIBs), RRC connection control (such as RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with the transfer of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation, and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization. 
     The transmit (TX) processor  316  and the receive (RX) processor  370  implement layer 1 functionality associated with various signal processing functions. Layer 1, which includes a physical (PHY) layer, may include error detection on the transport channels, forward error correction (FEC) coding/decoding of the transport channels, interleaving, rate matching, mapping onto physical channels, modulation/demodulation of physical channels, and MIMO antenna processing. The TX processor  316  handles mapping to signal constellations based on various modulation schemes (such as binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (such as a pilot) in the time or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to produce multiple spatial streams. Channel estimates from a channel estimator  374  may be used to determine the coding and modulation scheme, as well as for spatial processing. The channel estimate may be derived from a reference signal or channel condition feedback transmitted by the UE  104 . Each spatial stream may then be provided to a different antenna  320  via a separate transmitter  318 TX. Each transmitter  318 TX may modulate an RF carrier with a respective spatial stream for transmission. 
     At the UE  104 , each receiver  354 RX receives a signal through its respective antenna  352 . Each receiver  354 RX recovers information modulated onto an RF carrier and provides the information to the receive (RX) processor  356 . The TX processor  368  and the RX processor  356  implement layer 1 functionality associated with various signal processing functions. The RX processor  356  may perform spatial processing on the information to recover any spatial streams destined for the UE  104 . If multiple spatial streams are destined for the UE  104 , they may be combined by the RX processor  356  into a single OFDM symbol stream. The RX processor  356  then converts the OFDM symbol stream from the time-domain to the frequency domain using a Fast Fourier Transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, and the reference signal, are recovered and demodulated by determining the most likely signal constellation points transmitted by the base station  102  / 180 . These soft decisions may be based on channel estimates computed by the channel estimator  358 . The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the base station  102 / 180  on the physical channel. The data and control signals are then provided to the controller/processor  359 , which implements layer 3 and layer 2 functionality. 
     The controller/processor  359  can be associated with a memory  360  that stores program codes and data. The memory  360  may be referred to as a computer-readable medium. In the UL, the controller/processor  359  provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, and control signal processing to recover IP packets from the EPC  160 . The controller/processor  359  is also responsible for error detection using an ACK or NACK protocol to support HARQ operations. 
     Similar to the functionality described in connection with the DL transmission by the base station  102 / 180 , the controller/processor  359  provides RRC layer functionality associated with system information (for example, MIB, SIBs) acquisition, RRC connections, and measurement reporting; PDCP layer functionality associated with header compression / decompression, and security (ciphering, deciphering, integrity protection, integrity verification); RLC layer functionality associated with the transfer of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization. 
     Channel estimates derived by a channel estimator  358  from a reference signal or feedback transmitted by the base station  102 / 180  may be used by the TX processor  368  to select the appropriate coding and modulation schemes, and to facilitate spatial processing. The spatial streams generated by the TX processor  368  may be provided to different antenna  352  via separate transmitters  354 TX. Each transmitter  354 TX may modulate an RF carrier with a respective spatial stream for transmission. 
     The UL transmission is processed at the base station  102 / 180  in a manner similar to that described in connection with the receiver function at the UE  104 . Each receiver  318 RX receives a signal through its respective antenna  320 . Each receiver  318 RX recovers information modulated onto an RF carrier and provides the information to a RX processor  370 . 
     The controller/processor  375  can be associated with a memory  376  that stores program codes and data. The memory  376  may be referred to as a computer-readable medium. In the UL, the controller/processor  375  provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover IP packets from the UE  104 . IP packets from the controller/processor  375  may be provided to the EPC  160 . The controller/processor  375  is also responsible for error detection using an ACK or NACK protocol to support HARQ operations. 
     In the UE  104 , at least one of the TX processor  368 , the RX processor  356 , and the controller/processor  359  may be configured to perform aspects in connection with the reporting component  140  of  FIG.  1   . 
     In the base station  102 / 180 , at least one of the TX processor  316 , the RX processor  370 , and the controller/processor  375  may be configured to perform aspects in connection with reporting management component  198  of  FIG.  1   . 
     In some aspects, a base station and/or a UE may have full duplex capabilities. For example, in some aspects, a base station may transmit a downlink transmission to a UE while contemporaneously receiving an uplink transmission from the UE. As another example, a base station may transmit a downlink transmission to a first UE while contemporaneously receiving an uplink transmission from a second UE. As yet still another example, a UE may transmit a downlink transmission to a first base station while contemporaneously receiving an uplink transmission from a second base station. Further, a full duplex implementation may be an in-band full duplex implementation or a sub-band full duplex implementation. In a first in-band full duplex mode, a transmit operation and a receive operation may occur at the same time over a common frequency band with full overlap between the operations. In a second in-band full duplex mode, a transmit operation and a receive operation may occur may occur at the same time over a common frequency resource in the frequency domain with partial overlap between the operations. Further, in a sub-band duplex mode, a transmit operation and a receive operation may occur at the same but on different frequency resources in the frequency domain. Further, the frequency used for the first operation and the frequency used for the second operation may be separated by a guard band. In addition, in some aspects, the guard band may be of a size that causes partial overlap of the transmit operation and the receive operation due to leakage of the transmit operation. While exhibiting advantages over HD mode via increased throughput or reduced outage probability, gains from FD mode may be eroded by self-interference due to the large power difference between the power imposed by a device’s own transmissions and the low-power received signal arriving from a remote transmit antenna. As a means of self-interference mitigation, in some aspects, a UE may utilize two separate panels for simultaneous transmit and receive operations and enforce increased isolation between the two panels. Further, in some sub-band full duplex implementations, the downlink and uplink may be performed in different ports of the band with a guard band between uplink and downlink within the band. 
     Typically, 5G NR base stations are deployed with a large antenna array, which enables the base stations to apply both beamforming for improving the received signal strength as well as spatial multiplexing for increasing the rank and achievable data rate of the transmission. However, in order to utilize the increased spatial degrees of freedom offered by the arrays, the base station needs CSI for the UEs which it intends to serve. Generally speaking, the CSI is needed for determining the precoding of the ports of the antenna array and setting the link adaptation, i.e. selecting a proper modulation and coding scheme (MCS) of the PDSCH transmission. The CSI reporting configuration can be aperiodic (using a PUSCH), periodic (using a PUCCH), or semi-persistent (using a PUCCH or DCI-activated PUSCH). Typically, a CSI report is comprised of two parts. CSI part 1 has a fixed payload size and is used to identify the number of information bits in CSI part 2. CSI part 1 must be transmitted completely before the transmission of CSI part 2. CSI is transmitted in uplink control information (UCI) messages along with a hybrid automatic repeat request acknowledgment (HARQ-ACK) and a scheduling request (SR). UCI messages are encoded and transmitted through the PUCCH or are multiplexed on the PUSCH. The HARQ-ACK (if any) and CSI (if any) is encoded and multiplexed with or without encoded UL-SCH data, and then transmitted on a PUSCH. 
     The channel characteristics of a downlink channel may be different in a half-duplex mode and full-duplex mode because of the existence of cross link interference and self-interference. As such, a base station may benefit from knowledge of the channel CSI of both full duplex slots and half-duplex slots. For example, the base station may utilize FD CSI to estimate the impact of different types of interference on a UE in a FD slot. Additionally, the base station may combine the CSI values to decide on one set of transmit parameters (e.g., MCS, rank, etc.) for FD slots and HD slots. In order to reduce CSI feedback overhead at UEs and CSI management overhead at base stations, it may be advantageous for a base station to configure a UE to report combined and/or compressed CSI including HD CSI and FD CSI in the same report. Further, conventional systems have not implemented a cogent process for configuration of systems employing combined HD and FD CSI reports. Specifically, conventional systems lack a means for configuring prioritization and multiplexing of the CSI over the PUSCH or PUCCH. Accordingly, the present techniques enable multiplexing HD CSI and FD CSI as a combined CSI report, thereby minimizing or reducing system overhead, latency, and power consumption, and preserving time and frequency resources. 
     Referring to  FIGS.  4 - 8   , in one non-limiting aspect, a system  400  is configured to facilitate multiplexing HD CSI and FD CSI as a combined CSI report, in accordance with some aspects of the present disclosure. 
       FIG.  4    is a diagram illustrating example communications and components of base stations and UEs. As illustrated in  FIG.  4   , the system  400  may include a base station  402  (e.g., the base station  102 / 180 ) serving a UE  404  (e.g., the UE  104 ). Further, the system  400  may include a plurality of other base stations  406  and a plurality of other UEs  408  configured to perform similar operations as the base station  402  and the UE  404 , respectively. Further, the base station  402  and the UE  404  may be configured for beamformed wireless communications. For example, the base station  402  may exchange downlink transmissions  410 ( 1 )-( n ) and uplink transmissions  412 ( 1 )-( n ) with the UE  404  using directional transmit and receive beams, where each beam has an associated beam ID, beam direction, beam symbols, etc. Further, the base station  402  and the UE  404  may perform full duplex communications. For example, the base station  402  may transmit the downlink transmission  410  to the UE  404  while contemporaneously receiving the uplink transmission  412  from the UE  404 . 
     As illustrated in  FIG.  4   , the base station  402  may include a reporting management component  198  configured to determine one or more parameters  414  for configuring CSI reporting by the UE  404  and the UEs  408 , and transmit the one or more parameters  414  to the UE  404  and the UEs  408  within the configuration information  416 . For example, as described in detail herein, the reporting management component  198  may determine the one or more parameters  414 (1)-(n) for configuring prioritization and multiplexing of the HD CSI and FD CSI on the PUSCH or PUCCH by the UEs  404  and  408 , and transmit the configuration information  416  including the one or more parameters  414  to the UE  404 . Further, the base station  402  may include a reference signal management component  418  configured to transmit reference signals  420  (e.g., HD reference signals or FD reference signals) to the UEs  404  and  408 . In some aspects, the reference signals  420  may be CSI-RSs or SSBs. In addition, the base station  402  may include a reception component  422  and a transmitter component  424 . The reception component  422  may include, for example, a radio frequency (RF) receiver for receiving the signals described herein. The transmitter component  424  may include, for example, an RF transmitter for transmitting the signals described herein. In an aspect, the reception component  422  and the transmitter component  424  may be co-located in a transceiver (e.g., the transceiver  510  shown in  FIG.  5   ). 
     As illustrated in  FIG.  4   , the UE  404  may include a reporting component  140  configured to report HD CSI and FD CSI in the same report, in accordance with the configuration information  416 . For example, the reporting component  140  may be configured to receive the configuration information  416  from the base station  402 , prioritize and/or multiplex HD CSI and FD CSI based on the one or more parameters  414  as combined CSI reports  426 ( 1 )-( n ), and transport the combined CSI reports  426 ( 1 )-( n ) to the base station  402  in UCI payloads  428 ( 1 )-( n ). Further, the UE  404  may include a measurement component  430  for measuring the reference signals  420  received from the base stations (e.g., the base station  402  and the base stations  406 (1)-(n)) to determine the HD CSI and FD CSI for the combined CSI report  426 . 
     In addition, the UE  404  may include a reception component  432  and a transmitter component  434 . The transmitter component  434  may be configured to generate signals for transmission operations as described herein. The transmitter component  434  may include, for example, a RF transmitter for transmitting the signals described herein. The reception component  432  may include, for example, a RF receiver for receiving the signals described herein. In an aspect, the reception component  432  and the transmitter component  434  may be co-located in a transceiver (e.g., the transceiver  610  shown in  FIG.  6   ). 
     As illustrated in  FIG.  4   , the base station  402  may transmit the configuration information  416  to the UE  404 . Upon receipt of the configuration information  416 , the UE  404  may employ the configuration information  416  to configure CSI reporting at the UE  404  by the reporting component  140  via the one or more parameters  414 . In some examples, the configuration information  416  may include report type information indicating the scheduling method of the report (e.g., periodic, aperiodic and semi-persistent), report quantity information indicating the attributes to measure (e.g., CSI-related quantities, L1-RSRP-related quantities), report frequency information indicates the reporting granularity in frequency domain (e.g., wideband, sub-band), channel measurement restriction information indicating whether to put the restriction on channel measurement in time domain or not, interference measurement restriction information indicating whether to put the restriction on interference measurement in time domain or not, codebook configuration information indicating the parameters for type 1 and type 2, etc. In some aspects, periodic CSI reports may only be transmitted on the PUCCH as resources for the PUSCH need to be dynamically indicated. In some aspects, semi-persistent CSI reports may be transmitted on the PUCCH or the PUSCH, and activated and deactivated via a MAC-CE command for PUCCH-based CSI reporting and DCI for PUSCH-based CSI reporting. In some aspects, aperiodic CSI reports may only be transmitted on the PUSCH. 
     Further, as illustrated in  FIG.  4   , the base station  402  may transmit a first reference signal  420 (1) in a HD slot to the UE  404  and a second reference signal  420 (2) in a FD slot to the UE  404 . Upon receipt of the first reference signal  420 (1), the UE  404  may measure the first reference signal  420 (1) and determine the HD CSI. Upon receipt of the second reference signal  420 (2), the UE  404  may measure the second reference signal  420 (2) and determine the FD CSI. In addition, the UE  404  may combine the HD-CSI and FD-CSI into the combined CSI report  426  and multiplex the joint CSI report within the UCI payload  428 , in accordance with the multiplexing and/or prioritization rules set forth by the one or more parameters  414 . 
     In some aspects, the reported parameters of the CSI report(s) are encoded in UCI and mapped to PUSCH or PUCCH. Further, the encoding format used may be different depending at least on the physical channel used and the frequency-granularity of the CSI report(s). For example, with respect to PUCCH-based CSI reporting with wideband frequency-granularity, the variation of PMI/CQI payload depending on the selected rank is not too large and therefore a single packet encoding of all CSI parameters in UCI is used. Since the base station  402  may need to know the payload size of the UCI in order to try to decode the transmission, the UCI is padded with a number of dummy bits corresponding to the difference between the maximum UCI payload size and the actual payload size of the CSI report. This ensures that the payload size is fixed irrespective of UE’s RI selection. If this measure was not taken, the base station  402  would have to blindly detect the UCI payload size and try to decode for all possible UCI payload sizes, which may not be feasible. However, for PUCCH-based CSI with sub-band frequency-granularity as well as PUSCH-based CSI reporting, always padding the CSI report to the worst-case UCI payload size would result in too large overhead. For these cases, the CSI content is instead divided into two CSI parts, CSI part 1 and CSI part 2, where CSI part 1 has a fixed payload size and CSI part 2 has a variable payload size. In addition, as described in detail herein, the one or more parameters  414  may further configure the UE  404  to divide the CSI content into three CSI parts, i.e., CSI part 1, CSI part 2, and CSI part 3. Further, in some aspects, the information about the payload size of CSI parts 2 and/or 3 may be derived from the CSI parameters in CSI part 1. For example, the base station  402  may decode CSI part 1 to obtain a subset of the CSI parameters. Based on these CSI parameters, the payload size of CSI part 2 can be inferred, and CSI part 2 can be subsequently decoded to obtain the remainder of the CSI parameters. In addition, when a CSI report includes two or three CSI parts, the UE  404  may omit a portion of the CSI parts 2 or 3. As such, in some aspects, CSI parts 2 and 3 may be referred to as excludable parts herein. 
     Further, in some aspects, two or more CSI report transmissions may collide, in the sense that they are scheduled to be transmitted simultaneously, e.g., a periodic CSI report may collide with an aperiodic CSI report. In some other aspects, a number of CSI reports scheduled to be transmitted simultaneously result in too large a payload size and cannot fit in the UCI container (for instance due to the HARQ-ACK and/or SR that also needs to be multiplexed). For these situations, some CSI reports may have to be dropped or omitted. To know which CSI reports to prioritize in this case, a number of prioritization rules are defined. CSI reports are first prioritized according to their time-domain behavior and physical channel, where more dynamic reports are given precedence over less dynamic reports and PUSCH has precedence over PUCCH. That is, an aperiodic report has priority over a semi-persistent report on PUSCH, which in turn has priority over a semi-persistent report on PUCCH, which has priority over a periodic CSI report. This means that if an aperiodic report is scheduled at the same time where a periodic report is to be transmitted, the periodic report is dropped and not reported. If multiple CSI reports with the same time-domain behavior and physical channel collide, the reports are further prioritized depending on CSI content, where beam reports (i.e., L1-RSRP reporting) has priority over regular CSI reports. The motivation is that the CSI report is typically conditioned on a serving beam, so if the beam is not correct the CSI report is useless anyway. If there is still need for differentiation, the CSI reports are further prioritized based on for which serving cell the CSI corresponds (in case of CA operation). That is, CSI corresponding to the PCell has priority over CSI corresponding to SCells. Finally, in order to avoid any ambiguities in which CSI report is to be transmitted, the CSI reports are prioritized. 
     In some aspects, a CSI payload will not fit in the container (e.g., a PUSCH container), i.e., the code rate will be too large or even the un-coded systematic bits will not fit. Instead of dropping the entire CSI report in this case, which would be wasteful, NR introduces partial CSI omission, where a portion of the CSI (which can provide some utility to the base station  402  and at least give information about the RI selection so that the base station  402  can allocate a proper PUSCH resource for the next aperiodic CSI request) can still be reported. This is accomplished by ordering the CSI content in CSI part 2 in a particular fashion. If multiple CSI reports are transmitted in the PUSCH, the wideband CSI components (i.e. the wideband PMI and CQI) for all the reports are mapped to the most significant bits of the UCI. Then, the sub-band CSI for each report are mapped according to the previously described priority rules, where the sub-band CSI for even numbered sub-bands are mapped first, followed by sub-band CSI for the odd numbered sub-bands. If the resulting code rate of the UCI is above a threshold, a portion of the least significant UCI bits are omitted, until the code rate falls below the threshold. This means that sub-band CSI for odd numbered sub-bands for a report are omitted first. The motivation is that the base station  402  in this case would have sub-band PMI and CQI for every other sub-band in the frequency domain and can therefore interpolate the PM/CQI between two reported sub-bands to try to estimate the missing PMI/CQI values for the sub-band in the middle. While this will not result in perfect reconstruction, it is better than omitting CSI an entire chunk of consecutive sub-bands. 
     In some examples, the one or more parameters  414  may configure the reporting component  140  to generate the HD CSI as base information and the FD CSI as differential information capturing the difference between the HD CSI and the FD CSI. Further, in some aspects, the one or more parameters  414  may configure the reporting component  140  to include the differential information in an excludable part of the combined CSI report (e.g., CSI parts 2 and 3 of the combined CSI report  426 ). 
     In some aspects, the differential information may be processed similarly to the sub-band CSI, e.g., the differential information may be included CSI part 2 of the combined CSI report  426 . For example, the one or more parameters  414  may configure the reporting component  140  to include the base information within the combined CSI report  426  according to at least one of three priority groupings (e.g., groups 0, 1, and 2) and include the differential information within the combined CSI report  426  according to a fourth priority grouping (e.g., group 3 or higher) having a lower level than the three priority groupings. In some aspects, the one or more parameters  414  may configure the reporting component  140  utilize a plurality of priority groupings lower than the three priority groupings (e.g., groups 0, 1, and 2). For example, the one or more parameters  414  may configure the reporting component  140  to include a separate priority grouping for each of the wideband, odd sub-band, and even sub-band. As another example, the one or more parameters  414  may configure the reporting component  140  to include a portion of the base information within the combined CSI report  426  as a first priority grouping (e.g., group 0) and the differential information within the combined CSI report  426  as a second or third priority grouping (e.g., groups 1 and 2) having a lower priority level than the first priority grouping. In some examples, replacing the content of priority groups 1 or 2 with the differential information may be based on RRC configuration of the combined CSI report  426 . Further, in some aspects, if the band numbers of the base information are even, then the band numbers of the differential should also be even. Similarly, in some aspects, if the band numbers of the base information are odd, then the band numbers of the differential should also be odd. 
     In some other aspects, the one or more parameters  414  may configure the reporting component  140  to generate the combined CSI report  426  to include a non-excludable part (i.e., CSI part 1), a first excludable part of a higher priority (i.e., CSI part 2), and a second excludable part (i.e., CSI part 3) of a lower priority that includes the differential information. In addition, the priority reporting levels for CSI part 3 may be similar to the priority reporting levels for CSI part 2. 
     Further, the one or more parameters  414  may configure the reporting component  140  to multiplex UCI and the combined CSI report  426  on the PUCCH. In some aspects, for PUCCH format 2, if the differential information is included in CSI part 2 or part 3, the differential may be dropped. In some aspects, for PUCCH formats 3 and 4, if the differential information is included in CSI part 2, the baseline information of CSI part 2 and the differential information of CSI part 3 may be jointly encoded. Further, in some aspects, the priority rules may grant a higher priority to the differential information of a report having a higher priority with respect to the base information of a report having lower priority. In some aspects, for PUCCH formats 3 and 4, if the differential information is included in CSI part 3, the baseline information of CSI part 2 and the differential information of CSI part 3 may be separately encoded. Further, in some aspects, the priority rules may grant a lower priority to the differential information of a report having a higher priority with respect to the base information of a report having lower priority. In addition, the reporting component  140  may be configured to drop CSI part 3 before CSI part 2. 
     In addition, the one or more parameters  414  may configure the reporting component  140  to multiplex UCI and the combined CSI report  426  on PUSCH. In some aspects, the payload of the differential information is included in CSI part 2 or part 3, and the one or more parameters  414  include a beta scaling offset that defines a number of REs used for the excludable part, i.e., CSI part 2 or part 3, of the combined CSI report  426  and the UCI. In some aspects, if the differential information is included in CSI part 2, the one or more parameters  414  may configure the reporting component  140  to determine the number of REs used for the differential information using an existing beta offset parameter for CSI part 2 (e.g., beta_csi_part2). In some other aspects, if the differential information is included in CSI part 2, the one or more parameters  414  may configure the reporting component  140  to determine the number of REs used for the differential information using a new beta scaling offset for CSI part 3. Further, if the beta offset is a semi-static beta offset, the beta offset for the differential information may be configured for CSI part 2 or CSI part 3 via RRC signalling. In addition, if the beta offset is a dynamic beta offset for an aperiodic report trigger via DCI, the last two bits of a DCI received from the base station  402  may indicate the beta offset for the differential information. In some aspects, the last two bits of the DCI may indicate that the same beta offset should be applied to the CSI parts 2 and 3. In some other aspects, the two last two bits of the DCI may indicate that a beta offset for CSI part 2 and a relative beta offset for CDI part 3may be received via RRC signalling. In yet still some other aspects, the two last two bits of the DCI may indicate that a UE-side data structure may store beta offset values that may be selected for CSI parts 2 and 3. 
     Further, in some aspects, the one or more parameters  414  may configure the reporting component  140  to map the base information and differential information to the REs in PUSCH. For example, in some aspects, the CSI part 3 including the differential information may be mapped similarly to CSI part 2. For instance, the differential information may be mapped to REs reserved for HARQ-ACK. In some other aspects, the CSI part 3 including the differential information may be mapped according to one or more rules specific to CSI part 3. For instance, the differential information may not be mapped to REs reserved for HARQ-ACK. As such, the differential information will not be punctured during the mapping of HARQ-ACK to the REs in PUSCH. 
     As illustrated in the UE  404  may transmit the combined CSI report  426  to the base station  402 . As described above, the combined CSI report  426  may be multiplexed and prioritized according to the one or more parameters  414 . In some examples, the combined CSI report  426  may be transmitted in response to an activation signal 436 (e.g., a DCI for an aperiodic CSI report, or RRC signalling for a semi-periodic CSI report). Upon receipt of the combined CSI report  426 , the base station may estimate the impact of different types of interference on UE  404  in a FD slot, combine the two CSI values to decide on one set of transmit parameters for both types of slots, and/or perform scheduling procedures. Further, the base station  402  and UE  404  may exchange downlink transmissions  410  and uplink transmissions  412  in view of the combined CSI report  426 . 
       FIG.  5    is a diagram  500  illustrating an example of a hardware implementation for a base station  502  employing a processing system  514 . The processing system  514  may be implemented with a bus architecture, represented generally by the bus  524 . The bus  524  may include any number of interconnecting buses and bridges depending on the specific application of the processing system  514  and the overall design constraints. The bus  524  links together various circuits including one or more processors and/or hardware components, represented by the processor  504 , the reporting management component  198 , the reference signal management component  418 , and the computer-readable medium / memory  506 . The bus  524  may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further. 
     The processing system  514  may be coupled with a transceiver  510 . The transceiver  510  is coupled with one or more antennas  520 . The transceiver  510  provides a means for communicating with various other apparatus over a transmission medium. The transceiver  510  receives a signal from the one or more antennas  520 , extracts information from the received signal, and provides the extracted information to the processing system  514 , specifically the reception component  422 . The reception component  422  may receive the uplink transmissions  412  and the combined CSI report  426 . In addition, the transceiver  510  receives information from the processing system  514 , specifically the transmitter component  424 , and based on the received information, generates a signal to be applied to the one or more antennas  520 . Further, the transmitter component  424  may send the downlink transmissions  410 , the configuration information  416 , the reference signals  420 , and the activation signals  436 ( 1 )-( n ). 
     The processing system  514  includes a processor  504  coupled with a computer-readable medium / memory  506  (e.g., a non-transitory computer readable medium). The processor  504  is responsible for general processing, including the execution of software stored on the computer-readable medium / memory  506 . The software, when executed by the processor  504 , causes the processing system  514  to perform the various functions described supra for any particular apparatus. The computer-readable medium / memory  506  may also be used for storing data that is manipulated by the processor  504  when executing software. The processing system  514  further includes at least one of the reporting management component  198 , or the reference signal management component  418 . The aforementioned components may be software components running in the processor  504 , resident/stored in the computer readable medium / memory  506 , one or more hardware components coupled with the processor  504 , or some combination thereof. The processing system  514  may be a component of the base station  310  and may include the memory  376  and/or at least one of the TX processor  316 , the RX processor  370 , and the controller/processor  375 . Alternatively, the processing system  514  may be the entire base station (e.g., see  310  of  FIG.  3   , base station  402  of  FIG.  4   ). 
     The reporting management component  198  may be configured to configure the combining and multiplexing of HD CSI and FD CSI by a UE  404 . Further, the reference signal management component  418  may be configured to transmit first reference signals  420  for determining HD CSI by the UE  404  and second reference signals  420  for determining FD CSI by the UE  404 . 
     The aforementioned means may be one or more of the aforementioned components of the base station  502  and/or the processing system  514  of the base station  502  configured to perform the functions recited by the aforementioned means. As described supra, the processing system  514  may include the TX Processor  316 , the RX Processor  370 , and the controller/processor  375 . As such, in one configuration, the aforementioned means may be the TX Processor  316 , the RX Processor  370 , and the controller/processor  375  configured to perform the functions recited by the aforementioned means. 
       FIG.  6    is a diagram  600  illustrating an example of a hardware implementation for a UE  602  (e.g., the UE  104 , the UE  404 , etc.) employing a processing system  614 . The processing system  614  may be implemented with a bus architecture, represented generally by the bus  624 . The bus  624  may include any number of interconnecting buses and/or bridges depending on the specific application of the processing system  614  and the overall design constraints. The bus  624  links together various circuits including one or more processors and/or hardware components, represented by the processor  604 , the reporting component  140 , measurement component  430 , and the computer-readable medium (e.g., non-transitory computer-readable medium) / memory  606 . The bus  624  may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further. 
     The processing system  614  may be coupled with a transceiver  610 . The transceiver  610  may be coupled with one or more antennas  620 . The transceiver  610  provides a means for communicating with various other apparatus over a transmission medium. The transceiver  610  receives a signal from the one or more antennas, extracts information from the received signal, and provides the extracted information to the processing system  614 , specifically the reception component  432 . The reception component  432  may receive the downlink transmissions  410 , the configuration information  416 , the reference signals  420 , and the activation signals  436 ( 1 )-( n ). In addition, the transceiver  610  receives information from the processing system  614 , specifically the transmitter component  434 , and based on the received information, generates a signal to be applied to the one or more antennas. Further, the transmitter component  434  may transmit the combined CSI report  426  and the uplink transmissions  412 . 
     The processing system  614  includes a processor  604  coupled with a computer-readable medium / memory  606  (e.g., a non-transitory computer readable medium). The processor  604  is responsible for general processing, including the execution of software stored on the computer-readable medium / memory  606 . The software, when executed by the processor  604 , causes the processing system  614  to perform the various functions described supra for any particular apparatus. The computer-readable medium / memory  606  may also be used for storing data that is manipulated by the processor  604  when executing software. The processing system  614  further includes at least one of the reporting component  140 , or the measurement component  430 . The aforementioned components may be a software component running in the processor  604 , resident/stored in the computer readable medium / memory  606 , one or more hardware components coupled with the processor  604 , or some combination thereof. The processing system  614  may be a component of the UE  602  and may include the memory  360  and/or at least one of the TX processor  368 , the RX processor  356 , and the controller/processor  359 . Alternatively, the processing system  614  may be the entire UE (e.g., see  350  of  FIG.  3   , UE  404  of  FIG.  4   ). 
     The reporting component  140  may be configured to generate and transmit the combined CSI report  426  in accordance with the one or more parameters  414 . Further, the measurement component  430  may be configured to measure the reference signals  420 (1)-(n) received from a base station (e.g., the base station  402 ). 
     The aforementioned means may be one or more of the aforementioned components of the UE  602  and/or the processing system  614  of UE  602  configured to perform the functions recited by the aforementioned means. As described supra, the processing system  614  may include the TX Processor  368 , the RX Processor  356 , and the controller/processor  359 . As such, in one configuration, the aforementioned means may be the TX Processor  368 , the RX Processor  356 , and the controller/processor  359  configured to perform the functions recited by the aforementioned means. 
       FIG.  7    is a flowchart of a method  700  of implementing a procedure for combining HD and FD CSI into a report on the PUCCH and the PUSCH transmissions, in accordance with some aspects of the present disclosure. The method may be performed by a base station (e.g., the base station  102 , which may include the memory  376  and which may be the entire base station or a component of the base station, such as reporting management component  198 , reference signal management component  418 , the TX processor  316 , the RX processor  370 , and/or the controller/processor  375 ; the base station  402 , the base station  502  of  FIG.  5   ). 
     At block  710 , the method  700  may include generating uplink control information (UCI) configuration information for a user equipment, the UCI configuration information including one or more parameters for configuring a UE to multiplex half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report. For example, the reporting management component  198  may determine the one or more parameters  414  for configuring prioritization and multiplexing of the HD CSI and FD CSI on the PUSCH or PUCCH by the UE  404 . 
     Accordingly, the base station  102 , the TX processor  316 , the RX processor  370 , and/or the controller/processor  375  executing the reporting management component  198  may provide means for generating uplink control information (UCI) configuration information for a user equipment, the UCI configuration information including one or more parameters for configuring a UE to multiplex half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report. 
     At block  720 , the method  700  may include transmitting the UCI configuration to the UE. For example, the reporting management component  198  may transmit the configuration information  416  including the one or more parameters  414  to the UE  404 . 
     Accordingly, the base station  102 , the RX processor  370 , and/or the controller/processor  375  executing the reporting management component  198  may provide means for transmitting the UCI configuration to the UE. 
     At block  730 , the method  700  may include transmitting, to the UE, a first reference signal associated with a HD mode and a second reference signal associated with a FD mode. For example, the reference signal management component  418  may transmit the first reference signal  420 (1) in a HD slot to the UE  404  and the second reference signal  420 (2) in a FD slot to the UE  404   
     Accordingly, the base station  102 , the RX processor  370 , and/or the controller/processor  375  executing the reporting management component  198  may provide means for transmitting, to the UE, a first reference signal associated with a HD mode and a second reference signal associated with a FD mode. 
     At block  740 , the method  700  may include receiving, from the UE, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. For example, the base station  402  may receive the combined CSI report  426  from the UE  404 . 
     Accordingly, the base station  102 , the RX processor  370 , and/or the controller/processor  375  executing the reporting management component  198  may provide means for receiving, from the UE, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. 
       FIG.  8    is a flowchart of a method  800  of implementing a procedure for combining HD and FD CSI into a report on the PUCCH and the PUSCH transmissions. The method may be performed by a UE (e.g., the UE  104  of  FIGS.  1  and  3   , which may include the memory  360  and which may be the entire UE  104  or a component of the UE  104 , such as the reporting component  140 , the measurement component  430 , the TX processor  368 , the RX processor  356 , and/or the controller/processor  359 ; the UE  404  of  FIG.  4   ; and/or the UE  602  of  FIG.  6   ). 
     At block  810 , the method  800  may include receiving uplink control information (UCI) configuration information from a base station, the UCI configuration information including one or more parameters for multiplexing HD CSI and FD CSI as a combined CSI report. For example, the UE  404  may receive the configuration information  416  including the one or more parameters  414  from the base station  402 . 
     Accordingly, the UE  104 , the UE  404 , UE  902 , the TX processor  368 , the RX processor  356 , and/or the controller/processor  359 , executing the reporting component  140  may provide means for receiving UCI configuration information from a base station, the UCI configuration information including one or more parameters for multiplexing HD CSI and FD CSI as a combined CSI report. 
     At block  820 , the method  800  may include receiving, from the base station, a first reference signal associated with a HD mode. For example, the UE  404  may receive the first reference signal  420 (1), measure the first reference signal  420 (1), and determine the HD CSI. 
     Accordingly, the UE  104 , the UE  404 , UE  902 , the TX processor  368 , the RX processor  356 , and/or the controller/processor  359  executing the measurement component  430  may provide means for receiving, from the base station, a first reference signal associated with a HD mode. 
     At block  830 , the method  800  may include receiving, from the base station, a second reference signal associated with a FD mode. For example, the UE  404  may receive the second reference signal  420 (2), measure the second reference signal  420 (2), and determine the FD CSI. 
     Accordingly, the UE  104 , the UE  404 , UE  902 , the TX processor  368 , the RX processor  356 , and/or the controller/processor  359  executing the measurement component  430  may provide means for receiving, from the base station, a second reference signal associated with a FD mode. 
     At block  840 , the method  800  may include transmitting, to the base station, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. For example the UE  404  may combine the HD-CSI and FD-CSI into the combined CSI report  426  and multiplex the combined CSI report  426  with UCI, in accordance with the multiplexing and/or prioritization rules set forth by the one or more parameters  414 . Further, the UE  404  may transmit the UCI/CSI report  426  on the PUCCH or the PUSCH. 
     Accordingly, the UE  104 , the UE  404 , UE  902 , the TX processor  368 , the RX processor  356 , and/or the controller/processor  359  executing the reporting component  140  may provide means for transmitting, to the base station, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal. 
     The specific order or hierarchy of blocks in the processes / flowcharts disclosed is an illustration of example approaches. Based upon design preferences, the specific order or hierarchy of blocks in the processes / flowcharts may be rearranged. Further, some blocks may be combined or omitted. The accompanying method claims present elements of the various blocks in a sample order, and are not meant to be limited to the specific order or hierarchy presented. 
     The previous description is provided to enable any person having ordinary skill in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other aspects. The claims are not intended to be limited to the aspects shown herein, but is to be accorded the full scope consistent with the language claims, where reference to an element in the singular is not intended to mean “one and only one” unless specifically so stated, but rather “one or more.” Unless specifically stated otherwise, the term “some” refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, or C, and may include multiples of A, multiples of B, or multiples of C. Specifically, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, where any such combinations may contain one or more member or members of A, B, or C. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to a person having ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims. The words “module,” “mechanism,” “element,” “device,” and the like may not be a substitute for the word “means.” As such, no claim element is to be construed as a means plus function unless the element is expressly recited using the phrase “means for.” 
     Example Clauses 
     A. A method of wireless communication at a UE, comprising receiving uplink control information (UCI) configuration information from a base station, the UCI configuration information including one or more parameters for multiplexing half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report; receiving, from the base station, a first reference signal associated with a HD mode; receiving, from the base station, a second reference signal associated with a FD mode; and transmitting, to the base station, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal.   B. The method as paragraph A recites, wherein transmitting the combined CSI report comprises determining base information based on measuring the first reference signal; and determining differential information based on the base information and measuring the second reference signal, wherein the differential information is included in an excludable part of the combined CSI report.   C. The method as paragraph B recites, wherein the base information is reported within the combined CSI report according to at least one of three priority groupings and the differential information is reported within the combined CSI report according to a fourth priority grouping having a lower priority level than the three priority groupings.   D. The method as paragraph B recites, wherein a portion of the base information is reported within the combined CSI report as a first priority grouping and the differential information is reported within the combined CSI report according to a second or third priority grouping having a lower priority level than the first priority grouping.   E. The method as paragraph B recites, wherein transmitting the combined CSI report comprises transmitting, via format two of a physical uplink control channel, a non-excludable part of the combined CSI report while omitting transmission of the excludable part of the combined CSI report.   F. The method as paragraph B recites, wherein transmitting the combined CSI report comprises transmitting the combined CSI report via format three or format four of a physical uplink control channel, wherein the base information and the differential information are jointly encoded within the excludable part of the combined CSI report.   G. The method as paragraph B recites, wherein the one or more parameters include a beta scaling offset that defines a number of resource elements used for the excludable part of the combined CSI report.   H. The method as any of paragraphs A-G recite, wherein transmitting the combined CSI report, comprises determining base information based on measuring the first reference signal; and determining differential information based on the base information and measuring the second reference signal, wherein the combined CSI report includes a non-excludable part, a first excludable part of a higher priority, and a second excludable part of a lower priority that includes the differential information.   I. The method as paragraph H recites, wherein transmitting the combined CSI report comprises transmitting, via format two of a physical uplink control channel, the non-excludable part of the combined CSI report while omitting transmission of the second excludable part of the combined CSI report.   J. The method as paragraph H recites, wherein transmitting the combined CSI report comprises transmitting the combined CSI report via format three or format four of a physical uplink control channel, wherein the base information and the differential information are separately encoded within the combined CSI report.   K. The method as paragraph H recites, wherein the one or more parameters include a beta scaling offset that defines a number of resource elements in a physical uplink shared channel used for the second excludable part of the combined CSI report.   L. The method as any of paragraphs A-G recite, further comprising receiving, from the base station, a radio resource control signal indicating a semi-static beta offset that defines a number of resource elements in a physical uplink shared channel used for the combined CSI report.   M. The method as any of paragraphs A-G recite, further comprising receiving, from the base station, downlink control information including two bits indicating a dynamic beta scaling offset that defines a number of resource elements in a physical uplink shared channel used for the combined CSI report.   N. The method as paragraph H recites, wherein transmitting the combined CSI report comprises mapping the second excludable part to one or more resource elements reserved for a hybrid automatic repeat request (HARQ) acknowledgment; and replacing a portion of the differential information with the HARQ acknowledgement.   O. The method as paragraph H recites, wherein transmitting the combined CSI report comprises mapping the second excludable part to one or more resource elements that are not reserved for a hybrid automatic repeat request (HARQ) acknowledgment.   P. A UE for wireless communication, comprising a memory storing computer-executable instructions; and at least one processor coupled with the memory and configured to execute the computer-executable instructions to perform the method of any of paragraphs A-O.   Q. A UE for wireless communication, comprising means for performing the method of any of paragraphs A-O.   R. A non-transitory computer-readable medium storing computer executable code, the code when executed by a processor causes the processor to perform the method of any of paragraphs A-O.   S. A method of wireless communication at a base station, comprising generating uplink control information (UCI) configuration information for a user equipment, the UCI configuration information including one or more parameters for configuring a UE to multiplex half-duplex (HD) channel state information (CSI) and full-duplex (FD) CSI as a combined CSI report; transmitting the UCI configuration to the UE; transmitting, to the UE, a first reference signal associated with a HD mode and a second reference signal associated with a FD mode; and receiving, from the UE, the combined CSI report based on the one or more parameters, the first reference signal, and the second reference signal.   T. The method as paragraph S recites, wherein the one or more parameters configure the UE to generate the combined CSI report to include base information based on UE measurement of the first reference signal, differential information based on the base information and UE measurement of the second reference signal, and wherein the differential information is included in an excludable part of the combined CSI report.   U. The method as paragraph T recites, wherein the one or more parameters configure the UE to report the base information within the combined CSI report according to at least one of three priority groupings and report the differential information within the combined CSI report according to a fourth priority grouping having a lower level than the three priority groupings.   V. The method as paragraph T recites, wherein the one or more parameters configure the UE to report a portion of the base information within the combined CSI report as a first priority grouping and the differential information within the combined CSI report as a second or third priority grouping having a lower priority level than the first priority grouping.   W. The method as paragraph T recites, wherein the one or more parameters configure the UE to transmit, via format two of a physical uplink control channel, a non-excludable part of the combined CSI report while omitting transmission of the excludable part of the combined CSI report.   X. The method as paragraph T recites, wherein the one or more parameters configure the UE to transmit the combined CSI report via format three or format four of a physical uplink control channel, and wherein the base information and the differential information are jointly encoded within the excludable part of the combined CSI report.   Y. The method as paragraph S recites, wherein the one or more parameters configure the UE to generate base information based on UE measurement of the first reference signal, differential information based on the base information and UE measurement of the second reference signal, and the combined CSI report to include a non-excludable part that includes at least a portion of the base information, a first excludable part of a higher priority, and a second excludable part of a lower priority that includes the differential information.   Z. The method as paragraph Y recites, wherein the one or more parameters configure the UE to transmit, via format two of a physical uplink control channel, the non-excludable part of the combined CSI report while omitting transmission of the second excludable part of the combined CSI report.   AA. The method as paragraph Y recites, wherein the one or more parameters configure the UE to transmit the combined CSI report via format three or format four of a physical uplink control channel, and wherein the base information and the differential information are separately encoded the combined CSI report.   AB. The method as any of paragraphs S-AA recite, further comprising transmitting, to the UE, a radio resource control signal indicating a semi-static beta offset that defines a number of resource elements in a physical uplink shared channel used for the combined CSI report.   AC. The method as any of paragraphs S-AA recite, further comprising transmitting, to the UE, downlink control information including two bits indicating a dynamic beta scaling offset that defines a number of resource elements in a physical uplink shared channel used for the combined CSI report.   AD. The method as paragraph Y recites, wherein the one or more parameters configure the UE to map the second excludable part to one or more resource elements reserved for a hybrid automatic repeat request (HARQ) acknowledgment.   AE. The method as paragraph Y recites, wherein the one or more parameters configure the UE to map the second excludable part to one or more resource elements reserved for a hybrid automatic repeat request (HARQ) acknowledgment.   AF. A base station for wireless communication, comprising a memory storing computer-executable instructions; and at least one processor coupled with the memory and configured to execute the computer-executable instructions to perform the method of any of paragraphs S-AE.   AG. A base station for wireless communication, comprising means for performing the method of any of paragraphs S-AE.   AH. A non-transitory computer-readable medium storing computer executable code, the code when executed by a processor causes the processor to perform the method of any of paragraphs S-AE.