Uplink control information packing and prioritization for channel state information

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive, from a network node, an indication of uplink resources associated with reporting channel state information (CSI). The UE may transmit uplink control information (UCI) including a CSI report indicating a precoding matrix indicator (PMI) value to the network node and using the uplink resource based at least in part on prioritizing a group of information associated with the CSI report, at least one of the sets is associated with a time domain base index value and non-zero coefficients of a coefficient matrix of a codebook associated with the CSI report. Numerous other aspects are provided.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications, and more particularly to techniques and apparatus associated with uplink control information (UCI) packing and prioritization for channel state information (CSI). Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth or transmit power). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0003] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink, using CP-OFDM or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful.

[0004] A user equipment (UE) may report channel state information (CSI) feedback associated with a channel between the UE and a network node. For example, one feature of a 5G system is the use of a multiple-input multiple-output (MIMO) transmission scheme to achieve high system throughput compared to previous generations of mobile systems. MIMO transmission typically requires the availability of accurate CSI for use at a network node to perform signal precoding using a precoding matrix for data and control information. A complex framework for CSI reporting may be defined, such as by a wireless communication standard such as 3GPP. In a first step, CSI is acquired at the UE based on the UE receiving a CSI reference signal (CSI-RS) from a network node. In a second step, the UE may determine a precoding matrix (e.g., based on an estimated channel matrix) from a set of predefined matrices referred to as a "codebook". The selected precoding matrix is ​​reported by the UE (e.g., in a CSI report) in a third step in the form of a precoding matrix indicator (PMI) and a rank indicator (RI), among others.

[0005] In some examples, in examples where the uplink resource allocation (e.g., physical uplink shared channel (PUSCH) resource allocation) is insufficient to carry the entire content of the CSI report, the UE may discard some portions of one or more CSI reports. Such a scenario may occur when the network node does not accurately allocate PUSCH resources when scheduling one or more CSI reports. In such examples, the UE may discard a portion of uplink control information (UCI), such as information associated with one or more CSI reports (this may be referred to as UCI omission). For example, the UE may send UCI via an uplink resource allocation. The UCI may include one or more CSI reports. UCI omission may be achieved by decomposing the UCI content associated with one or more CSI reports into information groups associated with different priority levels. Each priority level may be associated with a group associated with a CSI report. The UE may discard information associated with one or more groups having a lower priority so that the total payload size of the UCI (e.g., including one or more CSI reports) fits the uplink resource allocation for the UCI (e.g., PUSCH resource allocation). For example, a UCI packing order (e.g., indicating the order in which information is to be included in a given CSI report) or a UCI omission order (e.g., indicating the order in which information associated with all CSI reports to be included in a UCI transmission is to be discarded) may be defined by the priority levels of corresponding groups associated with one or more CSI reports.

[0006] In some examples, the UE may be moving at a moderate or high speed. In such examples, the channel conditions associated with the UE may change rapidly over time (e.g., because the UE is moving at a moderate or high speed). As a result, the precoding matrix associated with the channel and the UE may change rapidly over time. In order to handle the changing precoding matrix, a time domain basis codebook may be used by the UE to report CSI (e.g., for reporting PMI). For example, in addition to the frequency domain basis and the space domain basis, the precoding matrix associated with the CSI report may be associated with a time domain basis.

[0007] The introduction of a time domain base codebook (or a Doppler domain base codebook) can provide useful CSI information (e.g., PMI) in a medium-speed scenario or a high-speed scenario. For example, because the UE can include the time domain base and coefficients (e.g., the non-zero coefficients of the coefficient matrix of the time domain base codebook) in a CSI report sent to a network node, the network node can be enabled to predict the CSI or pre-coding matrix of one or more future time slots based on the extrapolated time domain base and coefficients indicated by the UE. This can improve communication performance in a medium-speed scenario or a high-speed scenario where the channel conditions associated with the UE may change rapidly. In some examples, the UE may perform UCI omission according to a UCI packing order or a UCI omission order (e.g., defined by the priority level of the corresponding group associated with the CSI report, as described above), as described above. However, the UCI packing order or the UCI omission order may not take into account the time domain base and coefficients included in the CSI report. Because the rules associated with defining the UCI packing order or the UCI omission order do not include information associated with the time domain basis and coefficients, the UE and the network may not be synchronized as to what information is to be included in the UCI when the size of the uplink resources is insufficient for the CSI report to be included in the UCI. As a result, the UE may omit critical or important information in the UCI that is expected or required by the network node. This may result in degraded CSI estimation by the network node and degraded communication performance of the UE because the network node may not receive the critical or important information in the UCI. Summary of the invention

[0008] Some aspects described herein relate to a user equipment (UE) for wireless communication. The UE may include at least one memory and at least one processor, the at least one processor being communicatively coupled to the at least one memory. The at least one processor may be configured to cause the UE to receive an indication of uplink resources associated with reporting channel state information (CSI) from a network node. The at least one processor may be configured to cause the UE to send uplink control information (UCI) of the CSI report including an indication of a precoding matrix indicator (PMI) value to the network node and using the uplink resource based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0009] Some aspects described herein relate to a network node for wireless communication. The network node may include at least one memory and at least one processor, the at least one processor being communicatively coupled to the at least one memory. The at least one processor may be configured to cause the network node to send an indication of uplink resources associated with reporting CSI intended for a UE. The at least one processor may be configured to cause the network node to receive UCI associated with the UE and the uplink resources, the UCI being associated with a group for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0010] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving an indication of uplink resources associated with reporting CSI from a network node. The method may include sending UCI for the CSI report including an indication of a PMI value to the network node and using the uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0011] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending an indication of uplink resources associated with reporting CSI intended for a UE. The method may include receiving UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI being associated with groups for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive an indication of uplink resources associated with reporting CSI from a network node. The instruction set, when executed by one or more processors of the UE, may cause the UE to send UCI of the CSI report including an indication of a PMI value to the network node and using the uplink resource based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send an indication of uplink resources associated with reporting CSI intended for a UE. The instruction set, when executed by one or more processors of the network node, may cause the network node to receive UCI associated with the UE and the uplink resources, the UCI being associated with a group for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for receiving an indication of uplink resources associated with reporting CSI from a network node. The apparatus may include: means for sending UCI for the CSI report including an indication of a PMI value to the network node and using the uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for sending an indication of uplink resources associated with reporting CSI intended for a UE. The apparatus may include: means for receiving UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI being associated with groups for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0016] Aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network nodes, network entities, wireless communication devices, or processing systems as fully described with reference to the accompanying drawings and the specification and as illustrated in the accompanying drawings and the specification.

[0017] The foregoing has broadly outlined the features and technical advantages of examples according to the present disclosure in an effort to make the following specific embodiments better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as a basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood according to the following description. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to fully understand the above features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate some typical aspects of the present disclosure and should not be considered to limit its scope, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2 is a diagram illustrating an example network node communicating with a user equipment (UE) in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0022] Figure 4 is a diagram illustrating an example of physical channels and reference signals in a wireless network according to the present disclosure.

[0023] Figure 5 is a diagram illustrating an example of an enhanced Type-II (eType-II) precoding matrix according to the present disclosure.

[0024] Figure 6 is a diagram illustrating an example of uplink control information (UCI) packing and prioritization according to the present disclosure.

[0025] Figure 7is a diagram illustrating an example of priority sorting of coefficients of a coefficient matrix according to the present disclosure.

[0026] Figure 8 is a diagram of an example associated with UCI packing and prioritization for channel state information (CSI) according to the present disclosure.

[0027] Fig. 9 is a diagram of an example associated with a UCI packing order and an omission order for CSI according to the present disclosure.

[0028] Figures 10 to 13 is a diagram of an example associated with coefficient priority ordering for a coefficient matrix associated with a PMI according to the present disclosure.

[0029] Fig.14 is a flow chart illustrating an example process associated with UCI packing and prioritization for CSI, performed, for example, by a UE, according to the present disclosure.

[0030] Fig.15 is a flow chart illustrating an example process associated with UCI packing and prioritization for CSI, performed, for example, by a network node, according to the present disclosure.

[0031] Fig.16 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0032] Fig.17 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0033] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It will be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, the aspect of any amount set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods that are practiced using other structures, functionality, or structures and functionality in addition to or different from the various aspects of the present disclosure set forth herein. Any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.

[0034] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0035] Various aspects generally relate to uplink control information (UCI) packing and prioritization for channel state information (CSI). Some aspects more specifically relate to UCI packing and prioritization for CSI associated with a time domain basis index value and coefficient of a precoding matrix indicator (PMI). For example, a user equipment (UE) may receive an indication of uplink resources associated with reporting CSI (e.g., for reporting PMI) from a network node. The UE may send UCI including a CSI report to the network node, the CSI report indicating PMI information (e.g., a spatial domain basis, a frequency domain basis, a time domain basis, and one or more non-zero coefficients of a coefficient matrix, etc.). The UE may include information in the UCI according to a UCI packing order or a UCI omission order defined by a corresponding priority level of one or more groups of PMI information. In some aspects, at least one of the one or more groups may be associated with the following: a time domain basis index value (e.g., of a time domain basis included in the PMI information) and a non-zero coefficient associated with the time domain basis index value from a coefficient matrix. A priority ordering, a UCI packing order, or a UCI omission order for the UCI may be defined based at least in part on a priority level associated with a respective group of the one or more groups.

[0036] For example, the one or more groups include a first group associated with a spatial domain beam index value and a strongest coefficient index (SCI). The one or more groups may also include a second group associated with a frequency domain base index value, a time domain base index value, and a first portion of non-zero coefficients of a coefficient matrix. The one or more groups may also include a third group associated with a second portion of non-zero coefficients of a coefficient matrix. The UE may include information (e.g., PMI information) in a CSI report in an order defined by a UCI packing order for the UCI. For example, the UCI packing order may be or indicate the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group. In other words, the first group may have the highest priority level, followed by the second group, and then by the third group, with respect to when information is packed in a CSI report.

[0037] In some aspects, the prioritization of non-zero coefficients may include: sorting the non-zero coefficients based at least in part on a permuted version of a coefficient matrix, wherein the permuted version includes at least one of a time domain permutation or a frequency domain permutation. For example, the prioritization of non-zero coefficients may include: for each corresponding time domain index of the permuted version of the coefficient matrix, sorting the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices (e.g., from highest priority to lowest priority). As another example, the prioritization of non-zero coefficients may include: for each corresponding frequency domain index of the permuted version of the coefficient matrix, sorting the coefficients of the permuted version of the coefficient matrix for all time domain indices and spatial domain indices.

[0038] Certain aspects of the subject matter described in the present disclosure may be implemented to achieve one or more of the following potential advantages. In some examples, when the time domain basis and coefficients are reported by the UE in a CSI report (e.g., in UCI), the described techniques may be used to synchronize the UCI packing order and the UCI omission order between the UE and the network node. Additionally, this may enable the UE to ensure that more critical or important information (e.g., from the time domain basis and coefficients, the frequency domain basis and coefficients, and the spatial domain basis and coefficients) is included in the UCI in a scenario where the uplink resources to be used to send the UCI are insufficient to carry all the information associated with the UCI. In addition, this may enable the UE to include the time domain basis and coefficients in the CSI report. The UE's inclusion of the time domain basis and coefficients in the CSI report may improve the CSI estimation (e.g., performed by the network node) in a medium-speed scenario or a high-speed scenario (e.g., where the CSI of the channel may change rapidly over time), thereby improving the communication performance of the UE.

[0039] Figure 11 is a diagram illustrating an example of a wireless network according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node (NN) 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e) or other network entities. The network node 110 is an entity that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). As another example, the network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0040] In some examples, the network node 110 is or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with the core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, or one or more DUs. For example, the network node 110 may include an NR network node, an LTE network node, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul interfaces, midhaul interfaces, or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.

[0041] Each network node 110 may provide communication coverage for a particular geographic area. In the 3rd Generation Partnership Project (3GPP), the term "cell" may refer to a coverage area of ​​a network node 110 or a network node subsystem serving the coverage area, depending on the context in which the term is used.

[0042] The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several thousand meters) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or a home network node.

[0043] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, or relay network nodes. These different types of network nodes 110 may have different transmit power levels, different coverage areas, or different effects on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts). Figure 1 In the example shown in , network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0044] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near RT) RAN intelligent controller (RIC) or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a certain number of different devices (which may be located in the same geographical location or different geographical locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of those different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.

[0045] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be a CU or a core network device, or the network controller 130 may include a CU or a core network device.

[0046] In some examples, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile network node 110 (e.g., the mobile network node). In some examples, the network nodes 110 may be interconnected with each other or to one or more other network nodes 110 or network nodes (not shown) in the wireless network 100 using any suitable transport network through various types of backhaul interfaces (such as direct physical connections or virtual networks).

[0047] The wireless network 100 may include one or more relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a network node 110 or a UE 120) and transmit the data transmissions to a downstream station (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown, network node 110d (e.g., a relay network node) may communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communications between network node 110a and UE 120d. A network node 110 that relays communications may be referred to as a relay station, relay network node, or relay.

[0048] UE 120 can be distributed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, an access terminal, a terminal, a mobile station, or a subscriber unit. UE 120 can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node, or any other suitable device configured to communicate via a wireless medium.

[0049] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, or location tags, which may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices, or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, or electrically coupled.

[0050] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may also be referred to as a radio technology or air interface. Frequency may also be referred to as a carrier or frequency channel. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0051] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, or other operations described elsewhere herein as being performed by network node 110.

[0052] In some aspects, actions described herein as being performed by network node 110 may be performed by multiple different network nodes. For example, a configuration action may be performed by a first network node (e.g., CU or DU), and a radio communication action may be performed by a second network node (e.g., DU or RU).

[0053] Devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, or channels by frequency or wavelength. For example, devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. Similar naming issues sometimes arise in conjunction with FR2, which is often (interchangeably) referred to as the “millimeter wave” band in various documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0054] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics or FR2 characteristics, and thus the features of FR1 or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz–71GHz), FR4 (52.6GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.

[0055] Considering the above examples, unless otherwise specifically stated, if the term "below 6 GHz" is used herein, it may broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, if the term "millimeter wave" is used herein, it may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1 or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0056] In some aspects, UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive an indication of uplink resources associated with reporting CSI from a network node; and send UCI of a CSI report including an indication of a PMI value to the network node and using the uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0057] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send an indication of uplink resources associated with reporting CSI intended for the UE; and receive UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI associated with a group for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0058] Figure 2 is a diagram illustrating an example network node communicating with a UE in a wireless network according to the present disclosure. The network node may correspond to Figure 1 Similarly, the UE may correspond to a network node 110. Figure 1 UE 120. Network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T ≥ 1). UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R ≥ 1). Figure 2 The network node 110 depicted in FIG. 1 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components, such as one or more CUs or one or more DUs, that facilitate direct communication with the UE 120.

[0059] At the network node 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQI) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., PSS or SSS). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, overhead symbols, or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0060] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 or other network nodes 110, and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0061] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0062] One or more antennas (e.g., antennas 234a to 234t or antennas 252a to 252r) may include or may be included in one or more antenna panels, one or more antenna groups, one or more antenna element sets, or one or more antenna arrays, etc. An antenna panel, antenna group, antenna element set, or antenna array may include one or more antenna elements (in a single housing or multiple housings), a coplanar antenna element set, a non-coplanar antenna element set, or a plurality of antenna elements coupled to one or more transmit or receive components (such as antennas). Figure 2 One or more antenna elements of one or more components).

[0063] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform aspects of any of the methods described herein.

[0064] At the network node 110, uplink signals from the UE 120 or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232, shown as DEMOD), detected by the MIMO detector 236 where applicable, and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein.

[0065] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component in the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, or the like may perform one or more techniques associated with UCI packing and prioritization for CSI, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, or the like Figure 2 Any other component of the Fig.14 The process of 1400 Fig.15 1500 or other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network node 110 or UE 120 (e.g., directly executed, or executed after compilation, conversion and / or interpretation), may cause the one or more processors, UE 120, or network node 110 to perform or direct, for example, Fig.14 The process of 1400 Fig.15 The operations of process 1500 or other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, or interpreting instructions, etc.

[0066] In some aspects, the UE 120 includes means for receiving an indication of uplink resources associated with reporting CSI from a network node; or means for sending UCI of a CSI report including an indication of a PMI value to a network node and using uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report. Means for the UE 120 to perform operations described herein may include, for example, one or more of the following: the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0067] In some aspects, the network node 110 includes: means for sending an indication of uplink resources associated with CSI intended for the UE; or means for receiving UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI being associated with a group for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report. In some aspects, means for the network node 110 to perform operations described herein may include, for example, one or more of the following: the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.

[0068] The deployment of a communication system (such as a 5G NR system) can be arranged in a variety of ways with various components or components. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a Node B (NB), an evolved NB (eNB), an NR base station, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) performing base station functionality can be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0069] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0070] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0071] Figure 3 3 is a diagram illustrating an example decomposed base station architecture 300 according to the present disclosure. The decomposed base station architecture 300 may include a CU 310, which may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed control units (such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0072] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or transmit signals to one or more of the other units via a wired transmission medium, and the wireless interface being configured to receive signals or transmit signals to one or more of the other units via a wireless transmission medium, or both.

[0073] In some aspects, CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 310. CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface such as an E1 interface. As needed, CU 310 may be implemented to communicate with DU 330 for network control and signaling.

[0074] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional split such as defined by 3GPP. In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0075] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions based on functional splits (e.g., functional splits defined by 3GPP) such as lower layer functional splits, or low PHY layer functions such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture such as a vRAN architecture.

[0076] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0077] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or communicate with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0078] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0079] Figure 4 4 is a diagram illustrating an example 400 of physical channels and reference signals in a wireless network according to the present disclosure. Figure 4 As shown, the downlink channel and the downlink reference signal may carry information from the network node 110 to the UE 120 , and the uplink channel and the uplink reference signal may carry information from the UE 120 to the network node 110 .

[0080] As shown, the downlink channels may include a physical downlink control channel (PDCCH) carrying downlink control information (DCI), a physical downlink shared channel (PDSCH) carrying downlink data, or a physical broadcast channel (PBCH) carrying system information, etc. In some aspects, PDSCH communications may be scheduled by PDCCH communications. As further shown, uplink channels may include a physical uplink control channel (PUCCH) carrying uplink control information (UCI), a physical uplink shared channel (PUSCH) carrying uplink data, or a PRACH for initial network access, etc. In some aspects, UE 120 may send an acknowledgement (ACK) or negative acknowledgement (NACK) feedback (e.g., ACK / NACK feedback or ACK / NACK information) in UCI on PUCCH or PUSCH.

[0081] As further shown, the downlink reference signal may include a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a DMRS, a positioning reference signal (PRS), or a phase tracking reference signal (PTRS), etc. As also shown in the figure, the uplink reference signal may include a sounding reference signal (SRS), a DMRS, or a PTRS, etc.

[0082] The SSB may carry information used for initial network acquisition and synchronization, such as a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH, and a PBCH DMRS. The SSB is sometimes referred to as a synchronization signal / PBCH (SS / PBCH) block. In some aspects, the network node 110 may send multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection.

[0083] The CSI-RS may carry information for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, etc. The network node 110 may configure a CSI-RS set for the UE 120, and the UE 120 may measure the configured CSI-RS set. Based at least in part on the measurements, the UE 120 may perform channel estimation and may report channel estimation parameters (e.g., in a CSI report) such as CQI, a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), a layer indicator (LI), a rank indicator (RI), or RSRP, etc., to the network node 110. The network node 110 may use the CSI report to select transmission parameters for downlink communication to the UE 120, such as the number of transmission layers (e.g., rank), a precoding matrix (e.g., a precoder), an MCS, or a refined downlink beam (e.g., using a beam refinement procedure or a beam management procedure), etc.

[0084] DMRS may carry information for estimating a radio channel for demodulation of an associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of DMRS may be specific to the physical channel that the DMRS is used to estimate. DMRS is UE-specific, may be beamformed, may be confined to scheduled resources (e.g., rather than sent over a wideband), and may be sent only when necessary. As shown, DMRS is used for both downlink and uplink communications.

[0085] PTRS can carry information for compensating for oscillator phase noise. Typically, phase noise increases with the increase of the oscillator carrier frequency. Therefore, PTRS can be used at high carrier frequencies (such as millimeter wave frequencies) to mitigate phase noise. PTRS can be used to track the phase of the local oscillator and to achieve suppression of phase noise and common phase error (CPE). As shown, PTRS is used for both downlink communications (e.g., on PDSCH) and uplink communications (e.g., on PUSCH).

[0086] The PRS may carry information for implementing timing or ranging measurements of the UE 120 based on signals sent by the network node 110 to improve observed time difference of arrival (OTDOA) positioning performance. For example, the PRS may be a pseudo-random quadrature phase shift keying (QPSK) sequence mapped in a diagonal pattern with a shift in frequency and time to avoid conflicts with cell-specific reference signals and control channels (e.g., PDCCH). In general, the PRS may be designed to improve the detectability of the UE 120, which may need to detect downlink signals from multiple neighboring network nodes in order to perform OTDOA-based positioning. Therefore, the UE 120 may receive PRS from multiple cells (e.g., a reference cell and one or more neighboring cells), and may report a reference signal time difference (RSTD) based on OTDOA measurements associated with the PRS received from the multiple cells. In some aspects, the network node 110 may then calculate the position of the UE 120 based on the RSTD measurements reported by the UE 120.

[0087] The SRS may carry information for uplink channel estimation, which may be used for scheduling, link adaptation, pre-decoder selection, or beam management, etc. The network node 110 may configure one or more SRS resource sets for the UE 120, and the UE 120 may send the SRS on the configured SRS resource sets. The SRS resource sets may have configured purposes such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operation, uplink beam management, etc. The network node 110 may measure the SRS, may perform channel estimation based at least in part on these measurements, and may use the SRS measurements to configure communications with the UE 120.

[0088] The UE may determine CSI feedback associated with a channel between the UE and a network node. For example, one feature of a 5G system is the use of a MIMO transmission scheme to achieve high system throughput compared to previous generations of mobile systems. MIMO transmission typically requires the availability of accurate CSI for use at a network node to perform signal precoding using a precoding matrix for data and control information. A complex framework for CSI reporting may be defined, such as by a wireless communication standard such as 3GPP. In a first step, CSI is acquired at the UE based on a received CSI-RS signal sent by a network node. In a second step, the UE may determine a precoding matrix (e.g., based on an estimated channel matrix) from a set of predefined matrices referred to as a "codebook". The selected precoding matrix is ​​reported by the UE in the form of PMI and RI, etc. in a third step (e.g., in a CSI report).

[0089] The CSI feedback may be included in a CSI report sent by the UE to the network node. The CSI feedback may support multiple antenna configurations. When the UE is configured with four or more antenna ports, the CSI feedback may be based at least in part on a two-stage codebook. An example of a two-stage codebook may be a PMI codebook. The PMI codebook may be associated with a pre-decoder structure, which may be defined by W=W1W2. In other words, the pre-decoder structure (W) may be the product of W1 and W2, where W1 may represent long-term or wideband properties of the channel, and W2 may represent short-term or sub-band (e.g., a sub-band including a set of resource blocks) properties of the channel. W1 may be based on , where B may correspond to L oversampled two-dimensional discrete Fourier transform (DFT) beams, where L is a positive integer.

[0090] The CSI feedback timeline may involve the UE selecting a beam set given the precoding structure of the PMI codebook. The search complexity of W1 and W2 for beam selection may increase depending on the number of antenna ports and layers and may result in increased power consumption at the UE. In addition, the increased search complexity may delay the reporting time of the CSI feedback (e.g., the network node may wait for an increased period of time to receive CSI feedback from the UE).

[0091] For example, the search complexity of the W1 calculation performed at the UE can be an O1, O2, N1, N2 beam search, where O1 and O2 indicate DFT oversampling values, and N1 and N2 are based at least in part on the number of antennas in the horizontal and vertical dimensions. In the case of 32 antenna ports, the O1, O2, N1, N2 beam search can correspond to a 256-beam search, where O1 and O2 are equal to four.

[0092] The DFT vectors in the codebook are grouped into (q1,q2), 0≤q1≤O1-1, 0≤q2≤O2-1 subgroups, where each subgroup contains N1 N2 DFT vectors, and the parameters q1 and q2 are represented as rotation oversampling factors. The second component can be called the second-level pre-decoder or coefficient matrix W2, which is used to combine the selected beam vector. Assuming a rank R transmit and dual-polarized antenna array at a gNB with configuration (N1,N2,2), the pre-decoder for the s-th subband and r-th transmit layer is given by: The pre-decoding matrix W r (s) may have 2N1N2 rows corresponding to the number of antenna ports and S columns for reporting subbands or physical resource blocks (PRBs). The matrix W1 may be a wideband first-order precoder containing 2U spatial beams for both polarizations, which may be the same for all S subbands, and F A may be a diagonal matrix containing the 2U wideband amplitudes associated with the 2U spatial beams, and is a complex frequency domain combination coefficient containing 2U subbands (subband amplitude and phase) associated with the 2U spatial beams for the sth subband. The second stage pre-decoder W2 is calculated on a subband basis, so that The number of columns depends on the number of configured subbands. A subband may refer to a group of adjacent PRBs.

[0093] Figure 55 is a diagram illustrating an example 500 of an enhanced Type II (eType-II) precoding matrix according to the present disclosure. One disadvantage of the above-described Type-IICSI feedback is the large feedback overhead for reporting coefficients on a subband basis. The feedback overhead may increase (e.g., approximately linearly) with the number of subbands. Thus, for a large number of subbands, the overhead associated with CSI reporting may become large. Therefore, an eType-II codebook has been defined (e.g., by 3GPP) to overcome the large feedback overhead associated with previous Type-IICSI feedback.

[0094] like Figure 5 As shown, the eType-II pre-coding matrix can be a three-level pre-decoder (e.g., three components) relying on a three-level codebook Matrix W1 may be similar to matrix W1 as described above and may not depend on layer (r). Matrix W1 may contain quantities of spatial domain (SD) basis vectors selected from a spatial codebook. Matrix The matrix y may be layer-dependent and may be used to select the quantity of frequency-domain (or delay-domain) basis vectors from a DFT-based matrix (which may be referred to as a delay codebook). may be layer-dependent and may contain the amount of combining coefficients used to combine SD basis vectors and frequency domain basis vectors selected from the spatial codebook and the delay codebook, respectively. Figure 5 As shown, the matrix W1 may include: N t rows, where N t is the number of spatial domain basis candidates or antenna ports; and 2L columns, where L is the number of CSI-RS ports selected per polarization (e.g., the number of CSI-RS ports selected for a given transmission layer). The matrix W f There may be N3 columns and M rows, where N3 is the number of configured orthogonal DFT basis vectors or frequency domain candidates, and M is the number of selected frequency domain basis vectors. The value of N3 may be based at least in part on the number of CQI subbands and the number of PMI subbands, which may be RRC configured values. The value of M may be based on RRC configured parameters, such as the RRC CSI codebook parameter P v For example, the value of M can be Where R is the PMI subband size indicator (eg, which may be RRC configured). The matrix W2 may have 2L rows and M columns, where M is the number of selected frequency domain basis vectors.

[0095] The matrix W2 may be a linear combination coefficient matrix including 2L·M coefficients for linearly combining the selected M frequency domain basis vectors for the selected 2L CSI-RS ports. The UE may report (e.g., in a CSI report) the non-zero coefficients from the matrix W2. For example, for layer 1, only A subset of coefficients are nonzero and are reported. The remaining coefficients are not reported by the UE (e.g., in a CSI report) and are considered to be zero. where K0 is the maximum number of non-zero coefficients in each layer, given by Represents, where β is a parameter configured by RRC. The non-zero coefficients selected for each layer l are The bitmap may be indicated via a bitmap (e.g., having a size of 2LM). For example, a value of "1" in the bitmap may indicate that the coefficient corresponding to the bit is non-zero, selected by the UE and reported. A value of "0" in the bitmap may indicate that the coefficient corresponding to the bit is zero and is therefore not reported by the UE. The bitmap may be included in the CSI report. For example, the bitmap may be included in part 2 of the CSI report, which may also be referred to as UCI part 2 (e.g., as described in conjunction with Figure 6 more fully depicted and described).

[0096] The configuration associated with the CSI report (e.g., RRC configuration) may indicate: a parameter indicating the amount of spatial domain basis vectors to be selected by the UE from the spatial codebook for calculation of W1, a parameter indicating the number of spatial domain basis vectors to be selected by the UE from the delay codebook for calculation of W1, f The UE may send a CSI report including an indication of: RI (e.g., indicating the number of selected layers of the precoding matrix), CQI, and the number of non-zero coefficients selected by the UE. Additionally, the CSI report may include an indication of the PMI. The PMI may include an indication of: a spatial domain subset indicator (SD basis indicator) indicating the spatial domain basis vectors (i ) selected for the RI layer of the precoding matrix; a spatial domain subset indicator (SD basis indicator) indicating the spatial domain basis vectors (i ) selected for the RI layer of the precoding matrix; and a spatial domain subset indicator (SD basis indicator) indicating the spatial domain basis vectors (i ) selected for the RI layer of the precoding matrix. 1,1 、i 1,2 ) (e.g., the selected beam); a frequency domain subset indicator indicating the frequency domain basis vectors (i ) selected for each layer (0 to RI-1); 1,5 and i 1,6,l ); for each layer (0 to RI-1) the strongest coefficient indicator (SCI) indicating the strongest coefficient (not reported) (i 1,8,l ) associated with an SD base index (or SD and frequency domain base index); a bitmap for each layer, which indicates the non-zero coefficients (i 1,7,l ) associated SD base index and frequency domain base index; or the selected non-zero coefficient (i 2,3,l 、i 2,4,l 、i 2,5,l ) ; and so on.

[0097] For example, one or more frequency domain vectors may be indexed by i 1,5(for N3>19) and i 1,6,l To identify and indicate. The amplitude coefficient indicator can be i 2,3,l and i 2,4,l The phase coefficient indicator can be i 2,5,l Its non-zero position marks i 2,4,l and i 2,5,l The bitmap of which coefficients are reported can be determined by i 1,7,l instruct.

[0098] Figure 6 600 is a diagram illustrating an example of UCI packing and prioritization according to the present disclosure. Figure 6 As shown, a CSI report or UCI may include two parts: part 1 and part 2. CSI part 1 and UCI part 1 may be used interchangeably herein. Similarly, CSI part 2 and UCI part 2 may be used interchangeably herein. The content included in part 1 and part 2 may be defined or otherwise fixed by a wireless communication standard such as 3GPP. For example, 3GPP Technical Specification 38.214 Version 17.2.0 Section 5.2.3 may define the content included in CSI part 1 and CSI part 2 and the priority order of the content.

[0099] like Figure 6 As shown, part 1 may include an indication of the following: RI, CQI, and the amount of non-zero coefficients (NZC) associated with PMI. Part 2 may include: the spatial domain basis vectors (i 1,1 、i 1,2 ) (e.g., the selected beam); a frequency domain subset indicator indicating the frequency domain basis vectors (i ) selected for each layer (0 to RI-1); 1,5 and i 1,6,l ); For each layer (0 to RI-1), the SCI indicates the strongest coefficient (i 1,8,l ) associated with an SD base index (or SD and frequency domain base index); a bitmap for coefficient selection for each layer, the bitmap indicating the non-zero coefficients (i 1,7,l ) associated SD base index and frequency domain base index; or the selected non-zero coefficient (i 2,3,l 、i 2,4,l 、i 2,5,l ) ; and so on. Part 1 may have a higher priority than part 2. For example, when determining content to be included in a CSI report, content included in UCI part 1 may have a higher priority than content included in UCI part 2.

[0100] UCI omission for PUSCH-based resource allocation and CSI reporting may be performed by the UE. In some examples, in examples where the uplink resource allocation (e.g., PUSCH resource allocation) is insufficient to carry the entire contents of the CSI report, the UE is configured to discard some portions of one or more CSI reports. UCI omission may occur when the network node does not accurately allocate PUSCH resources when scheduling CSI reports. For example, a network node may allocate resources for a rank 1 (RI=1) CSI report, but the UE may determine a rank 2 (RI=2) CSI report that is sent at rank 2 and has a report size that is larger than the size of the allocated PUSCH resources. In other words, when the network allocates uplink resources for the CSI report, the network (e.g., one or more network nodes) may not know the RI value that will be selected by the UE. Therefore, in some cases, the allocated uplink resources may not be sufficient (e.g., may not be large enough) to carry the entire contents of the CSI report.

[0101] In such examples, the UE may discard a portion of the UCI (e.g., this may be referred to as UCI omission). The discarding may be achieved by decomposing the UCI payload associated with the CSI report into groups associated with different priority levels. Each priority level is associated with an information group associated with the CSI report. The UE may discard the CSI group with a lower priority so that the payload size of the CSI report fits the uplink resource allocation (e.g., PUSCH resource allocation) for the CSI report. The size of UCI part 1 may be fixed, while the size of UCI part 2 may vary depending on the RI selected by the UE and other factors. Because the network node may need the information indicated by UCI part 1 in order to decode UCI part 2, UCI omission may be performed on UCI part 2 (e.g., and not UCI part 1). In other words, in such examples, the information associated with UCI part 1 may not be discarded by the UE.

[0102] like Figure 6 As shown, the content associated with UCI part 2 can be divided into different groups. For example, group 0 may include: the spatial domain basis vectors (i 1,1 、i 1,2 ) (e.g., the selected beam) and an indication of the strongest coefficient (i 1,8,l ) associated with the SD base index (or SD and frequency domain base index) for each layer (0 to RI-1). Group 1 may include: the selected frequency domain basis vector (i 1,5 、i 1,6,l ); and the selected non-zero coefficient (i 2,3,l ) is the reference amplitude of the weakest polarization associated with the selected non-zero coefficient (i 2,4,l 、i 2,5,l )(For example, quantization of the first half of the highest priority non-zero coefficient); and indicating the quantization of the first half of the selected non-zero coefficient (i 1,7,l ) is a bitmap of spatial and frequency domain indices associated with the first half of the ). Group 2 may include: the selected non-zero coefficients (i 2,4,l 、i 2,5,l )(For example, the remaining non-zero coefficients); and indicating the quantization of the second half of the selected non-zero coefficients (i 1,7,l ) is a bitmap of spatial and frequency domain indices associated with the second half of Figure 6 As shown, for a given CSI report, group 0 may have the highest priority, followed by group 1, followed by group 2. In other words, when generating a CSI report, the UE may first include information associated with group 0 (e.g., the CSI report may be packaged), followed by information associated with group 1 (e.g., if there is enough space in the uplink resource allocation), and then information associated with group 2 (e.g., if there is enough space in the uplink resource allocation). Figure 7 Prioritization of non-zero coefficients (eg, to facilitate selection of a first half of non-zero coefficients and a second half of non-zero coefficients) is depicted and described in greater detail.

[0103] UCI omissions may be associated with a UCI omission order. Figure 6 As shown, the UCI omission order may be based at least in part on the index value associated with the CSI report. For example, CSI report 0 may have a higher priority than CSI report 1, CSI report 1 may have a higher priority than CSI report 2, and so on. Additionally, the UCI omission order may be based at least in part on the group of a given CSI report, as described above.

[0104] For example, assuming that a PUSCH resource is associated with two CSI reports (eg, CSI report 1 and CSI report 2), the omission order for discarding or omitting information from UCI carried via the PUSCH resource may follow: Figure 6. For example, the omission order may indicate that information associated with group 2 for CSI report 2 (or information associated with odd subbands for CSI report 2) will be omitted or discarded first. The omission order may indicate that information associated with group 1 for CSI report 2 (or information associated with even subbands for CSI report 2) will be omitted or discarded second. The omission order may indicate that information associated with group 2 for CSI report 1 (or information associated with odd subbands for CSI report 1) will be omitted or discarded third. The omission order may indicate that information associated with group 1 for CSI report 1 (or information associated with even subbands for CSI report 1) will be omitted or discarded fourth. The omission order may indicate that information associated with group 0 for all CSI reports will be omitted or discarded fifth (or last). When the PUSCH resources allocated for CSI reporting are insufficient to indicate all information associated with CSI reporting, following the omission order for UCI omission may enable the UE to include more important information in the CSI report.

[0105] Figure 7 700 is a diagram illustrating an example of prioritization of coefficients of a coefficient matrix according to the present disclosure. As described elsewhere herein, the non-zero coefficients reported by the UE in a CSI report may be split into a first half and a second half for a grouping associated with a UCI omission procedure. For example, the coefficients may be prioritized. The first half of the non-zero coefficients may be associated with a higher priority than the second half of the non-zero coefficients.

[0106] For example, if prio(l1,i1,m1)>prio(l2,i2,m2) (e.g., because lower priority values ​​are associated with higher priorities, such that priority value 0 has a higher priority than priority value 1), where prio(l,i,m) is the priority function, then the coefficients (eg, associated with layer index value l1, spatial domain base index value i1, and frequency domain base index value m1) may have a ratio coefficient (e.g., associated with layer index value l2, spatial domain base index value i2, and frequency domain base index value m2) with a lower priority. For example, the priority function may be defined as prio(l,i,m)=2L·RI·Perm(m)+RI·i+l, where Perm(m) maps the frequency domain base index in the order of the frequency domain components, such as 0, N3–1, 1, N3–2, 2, N3–3, 3,… and so on. Perm(m) may also be expressed as π(f) (e.g., in the 3GPP technical specification). For example, Perm(m) may enable coefficients that are closer to the frequency domain base index value 0 to be associated with a higher priority. This is because coefficients that are closer to the frequency domain base index value 0 may have a higher probability of being significant in the pre-decoder or CSI determination. The priority function may be interpreted as sorting the coefficients from highest priority to lowest priority, as follows:

[0107] For m′=Perm(m)

[0108] For i=0:2L-1

[0109] For l = 0: RI-1

[0110] Mapping

[0111] In other words, if Figure 7 As shown, the coefficient matrix W2 may be associated with 2L spatial domain bases and N3 delay domain (e.g., frequency domain) bases. To prioritize the coefficients, the coefficient matrix W2 may be permuted in the order or permutation indicated by Perm(m). For example, a frequency domain (FD) permutation may be associated with a reordering of the columns of the coefficient matrix W2 according to Perm(m). The coefficients may be mapped to priority values ​​based on the permuted coefficient matrix W2. For example, Figure 7 As shown, starting at the first column and the first row of the coefficient matrix W2, the first coefficient may be mapped to the highest priority value (e.g., "0"). The coefficients associated with this column (e.g., associated with the frequency domain base index value 0) may be mapped in descending order of priority. After the mapping of the last spatial domain index value associated with the delay domain base index value 0, the first spatial domain index value associated with the next frequency domain base index value (e.g., as indicated by the order of Perm(m)) may be mapped to the next priority value. For example, after mapping the coefficients associated with the frequency domain base index value 0 and all spatial domain base index values, all spatial domain base index values ​​associated with the delay domain base index value N3-1 may be mapped (e.g., because this is the next delay domain base index value as indicated by the order of Perm(m)).

[0112] The remaining coefficients may be mapped in a similar manner in descending order of priority. Based at least in part on the priority ordering of the coefficients, the UE may be enabled to identify a first half of non-zero coefficients (e.g., associated with group 1 of UCI part 2) and a second half of non-zero coefficients (e.g., associated with group 2 of UCI part 2).

[0113] In some examples, the UE may be traveling at high speed. In such examples, the channel conditions associated with the UE may change rapidly over time (e.g., because the UE is traveling at high speed). For example, the precoding matrix associated with the channel and the UE may change rapidly over time. In order to handle the changing precoding matrix, a time domain base codebook may be used by the UE to report CSI or PMI. For example, the time domain base codebook may be associated with time domain instance n, such that the precoding matrix may be represented as W(n)=W1×W2(n)×W f . For example, the UE may extrapolate one or more non-zero coefficients for one or more coefficient matrices W2(n) from one or more observed coefficient matrices W2(n). The coefficient matrices may be compressed into the time domain. For example, in addition to the frequency domain basis and the spatial domain basis, a precoding matrix or a CSI report may be associated with a time domain basis. In one example, the time domain basis may be selected commonly for all spatial domain bases and frequency domain bases (e.g., ( or Where W t is the time domain basis for channel H). As another example, the time domain basis may be independently selected for different space domain basis and frequency domain basis.

[0114] As another example, the codebook may be a Doppler domain based codebook. For example, the Doppler domain may be associated with or related to the time domain (and the delay domain may be associated with or related to the frequency domain). For example, the Doppler domain basis may be selected commonly for all space domain bases and frequency domain bases (e.g., or Where W d is a Doppler domain basis for a channel). As another example, the Doppler domain basis may be independently selected for different spatial domain basis and frequency domain basis. In some other examples, the eType-II codebook may be used for medium-speed or high-speed examples.

[0115] The introduction of the time domain base codebook and the Doppler domain base codebook can provide useful CSI or PMI information in medium speed scenarios or high speed scenarios. For example, because the UE can include the time domain base and coefficients (e.g., the non-zero coefficients of the coefficient matrix of the time domain base codebook) in the CSI report sent to the network node, the network node can be enabled to predict the CSI or pre-coding matrix of one or more future time slots based on the extrapolated time domain base and coefficients indicated by the UE. This can improve communication performance in medium speed scenarios or high speed scenarios where the channel conditions associated with the UE may change rapidly. In some examples, the UE may perform UCI omission according to the UCI packing order or UCI omission order (e.g., defined by the priority level of the corresponding group associated with the CSI report, as described above), as described above. However, the UCI packing order or the UCI omission order may not take into account the time domain base and coefficients included in the CSI report. Because the rules associated with defining the UCI packing order or the UCI omission order do not include information associated with the time domain basis and coefficients, the UE and the network may not be synchronized as to what information is to be included in the UCI when the size of the uplink resources is insufficient for the CSI report to be included in the UCI. As a result, the UE may omit critical or important information in the UCI that is expected or required by the network node. This may result in degraded CSI estimation by the network node and degraded communication performance of the UE because the network node may not receive the critical or important information in the UCI.

[0116] Various aspects generally relate to UCI packing and prioritization for CSI. Some aspects more specifically relate to UCI packing and prioritization for CSI associated with a time domain base index value and coefficient of a PMI. For example, a UE may receive an indication of uplink resources associated with reporting CSI (e.g., for reporting PMI) from a network node. The UE may send a UCI including a CSI report to the network node, the CSI report indicating PMI information (e.g., a spatial domain basis, a frequency domain basis, a time domain basis, and one or more non-zero coefficients of a coefficient matrix, etc.). The UCI may be associated with one or more groups of PMI information for a UCI packing order for uplink resources. In some aspects, at least one of the one or more groups may be associated with the following: a time domain base index value (e.g., of a time domain base included in the PMI information) and a non-zero coefficient associated with the time domain base index value from a coefficient matrix. Prioritization, UCI packing order, or UCI omission order for UCI may be defined at least in part based on a priority level associated with a corresponding group in one or more groups.

[0117] For example, one or more groups include a first group associated with a spatial domain beam index value and a strongest coefficient index (SCI). One or more groups may also include a second group associated with a frequency domain base index value, a time domain base index value, and a first portion of non-zero coefficients of a coefficient matrix. One or more groups may also include a third group associated with a second portion of non-zero coefficients of a coefficient matrix. The UE may include information (e.g., PMI information) in a CSI report in an order defined by a UCI packing order for UCI. For example, the UCI packing order may be or indicate the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group. In other words, the first group may have the highest priority level, followed by the second group, and then the third group, with respect to when information is packed in a CSI report.

[0118] In some aspects, the prioritization of non-zero coefficients may include: sorting the non-zero coefficients based at least in part on a permuted version of a coefficient matrix, wherein the permuted version includes at least one of a time domain permutation or a frequency domain permutation. For example, the prioritization of non-zero coefficients may include: for each corresponding time domain index of the permuted version of the coefficient matrix, sorting the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices (e.g., from highest priority to lowest priority). As another example, the prioritization of non-zero coefficients may include: for each corresponding frequency domain index of the permuted version of the coefficient matrix, sorting the coefficients of the permuted version of the coefficient matrix for all time domain indices and spatial domain indices.

[0119] Certain aspects of the subject matter described in the present disclosure may be implemented to achieve one or more of the following potential advantages. In some examples, when the time domain basis and coefficients are reported by the UE in a CSI report (e.g., in UCI), the described techniques may be used to synchronize the UCI packing order and the UCI omission order between the UE and the network node. Additionally, this may enable the UE to ensure that more critical or important information (e.g., from the time domain basis and coefficients, the frequency domain basis and coefficients, and the spatial domain basis and coefficients) is included in the UCI in a scenario where the uplink resources to be used to send the UCI are insufficient to carry all the information associated with the UCI. In addition, this may enable the UE to include the time domain basis and coefficients in the CSI report. The UE's inclusion of the time domain basis and coefficients in the CSI report may improve the CSI estimation (e.g., performed by the network node) in a medium-speed scenario or a high-speed scenario (e.g., where the CSI of the channel may change rapidly over time), thereby improving the communication performance of the UE.

[0120] Figure 8 8 is a diagram of an example 800 associated with UCI packing and prioritization for CSI according to the present disclosure. Figure 8 As shown, one or more network nodes (e.g., network node 110, CU, DU, or RU) may communicate with a UE (e.g., UE 120). In some aspects, network node 110 and UE 120 may be part of a wireless network (e.g., wireless network 100). UE 120 and network node 110 may be in communication with each other. Figure 8 The operations shown are performed after a wireless connection has been established.

[0121] As used herein, "sending" a communication from a network node 110 to a UE 120 may refer to sending directly (e.g., from the network node 110 to the UE 120) or indirectly via one or more other network nodes or devices. For example, if the network node 110 is a DU, then indirect transmission to the UE 120 may include the DU sending the communication to the RU and the RU sending the communication to the UE 120. Similarly, "sending" a communication from the UE 120 to the network node 110 may refer to sending directly (e.g., from the UE 120 to the network node 110) or indirectly via one or more other network nodes or devices. For example, if the network node 110 is a DU, then indirect transmission to the network node 110 may include the UE 120 sending the communication to the RU and the RU sending the communication to the DU.

[0122] In a first operation 805, the network node 110 may send configuration information and the UE 120 may receive the configuration information. In some aspects, the UE 120 may receive the configuration information via one or more of RRC signaling, one or more medium access control (MAC) control elements (MAC-CEs), or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by the UE 120 (e.g., that the UE 120 has stored or was previously indicated by the network node 110 or other network device) or explicit configuration information for use by the UE 120 itself, etc.

[0123] In some aspects, the configuration information may be associated with a CSI configuration or a CSI-RS configuration. For example, the UE 120 may be configured with one or more non-zero power (NZP) CSI-RS resource set configurations, as indicated by higher layer parameters CSI-ResourceConfig and NZP-CSI-RS-ResourceSet. In some aspects, the configuration may be associated with a codebook configuration. For example, the UE 120 may be configured with a higher layer parameter codebookType. The codebook configuration may indicate the type of codebook to be used by the UE 120 for CSI reporting or PMI reporting. For example, the configuration may indicate that the codebook type is a time domain based codebook or a Doppler domain based codebook.

[0124] In some aspects, the configuration information may indicate the values ​​of one or more parameters associated with the CSI report or the PMI report. For example, the UE 120 may be configured with a higher layer parameter paramCombination indicating β, P v or L, etc. As another example, the UE 120 may be configured with numberOfPMI-SubbandsPerCQI-Subband. As described elsewhere herein, this parameter may control the total amount of precoding matrices N3, indicated by the PMI as a function of the amount of configured subbands in the csi-ReportingBand, the subband size configured by the higher-level parameter subbandSize, and the total amount of PRBs in the bandwidth portion associated with the UE 120. In some aspects, the UE 120 may be configured (e.g., via a higher-layer parameter or RRC parameter) with an amount N4 of a time domain basis or a Doppler domain basis to be associated with the codebook.

[0125] In some aspects, the configuration information may indicate that the UE 120 will report CSI or PMI for the following: a spatial domain base index value, a frequency domain base index value, and a time domain base index value. For example, the configuration information may indicate that the UE 120 is configured with a codebook associated with the time domain base index value and coefficient. For example, the higher layer parameter codebookType may indicate that the UE 120 is configured with a time domain base codebook in which the time domain base is selected commonly for all spatial domain bases and frequency domain bases (e.g., or Where W t The configuration information may indicate that the codebook is a Doppler domain basis codebook. For example, the Doppler domain may be associated with or related to the time domain (and the delay domain may be associated with or related to the frequency domain). For example, the codebook may be associated with a Doppler domain basis selected in common for all space domain bases and frequency domain bases (e.g., or Where W d is a Doppler domain basis for the channel). As another example, the Doppler domain basis may be independently selected for different spatial domain basis and frequency domain basis. In some other examples, the configuration information may indicate that the eType-II codebook associated with the time domain basis is to be used by UE 120.

[0126] In some aspects, the configuration information may indicate a portion of the CSI or UCI associated with the time domain basis (e.g., portion 1 or portion 2). In other aspects, the portion of the CSI or UCI associated with the time domain basis (e.g., portion 1 or portion 2) may be defined by a wireless communication standard (such as 3GPP) or otherwise fixed (e.g., and not indicated in the configuration information). In some aspects, the time domain basis may be included in CSI (or UCI) portion 2 (e.g., portion 2 as described in more detail elsewhere herein). For example, the UE 120 may be configured to select a time domain basis for all layers (e.g., from layer 0 to layer RI-1). The time domain basis selected for all layers may be associated with CSI (or UCI) portion 2. Other content associated with CSI (or UCI) portion 1 and CSI (or UCI) portion 2 may be similar or identical, as described elsewhere herein.

[0127] In some aspects, the configuration information may indicate a prioritization technique for coefficients of a coefficient matrix associated with the configured codebook. In other examples, the prioritization technique for coefficients of a coefficient matrix associated with the configured codebook may be defined by a wireless communication standard (such as 3GPP) or otherwise fixed. As described elsewhere herein, the prioritization of coefficients may enable UE 120 to select or identify a first portion (e.g., a first half) of non-zero coefficients and a second portion (e.g., a second half) of non-zero coefficients to be reported to network node 110. The prioritization technique may be associated with prioritizing certain time domain base indices (e.g., in addition to a spatial domain base index and a frequency domain base index). For example, the prioritization technique may be associated with ordering non-zero coefficients based at least in part on a permutation version of the coefficient matrix, wherein the permutation version includes at least one of a time domain permutation and a frequency domain permutation. For example, the configuration information may indicate (or a wireless communication standard such as 3GPP may define) a time domain permutation (e.g., Perm_TD(s)) of the coefficient matrix (W2) for a time domain base index s. The time domain permutation may indicate the order of the time domain base index in the permuted version of the coefficient matrix. In other words, Perm_TD(s) may map the index s following the order of the corresponding time domain components. For example, the time domain permutation may be associated with the order of {0, N4-1, 1, N4-2, 2, N4-3, 3, ..., N4 / 2}. As another example, the time domain permutation may be associated with a natural order such as {0, 1, 2, 3, ..., N4-1} (e.g., indicating that the time domain index will not be permuted). Additionally, the configuration information may indicate (or a wireless communication standard such as 3GPP may define) a frequency domain permutation (e.g., Perm_FD(m)) of the coefficient matrix for the frequency domain base index m.

[0128] In some aspects, the priority sorting technique may be associated with sorting the non-zero coefficients of the permuted version of the coefficient matrix by, for each corresponding time domain index of the permuted version of the coefficient matrix, sorting the frequency domain index and the spatial domain index (e.g., where the resulting order of the coefficients indicates a priority level of the coefficients from highest priority to lowest priority). As another example, the priority sorting technique may be associated with sorting the coefficients of the permuted version of the coefficient matrix by, for each corresponding frequency domain index of the permuted version of the coefficient matrix, sorting the time domain index and the spatial domain index. Figures 10 to 13 Examples of different prioritization techniques are depicted and described in more detail.

[0129] In a second operation 810, UE 120 may send a capability report, and network node 110 may receive the capability report. In some aspects, the capability report may indicate that the UE supports a time domain base codebook or a Doppler domain base codebook, as described above. For example, UE 120 may indicate support for performing time domain base selection for CSI or PMI reporting. In some aspects, the configuration information may be based at least in part on the capability information. For example, UE 120 may be configured with a time domain base codebook or a Doppler domain base codebook for CSI reporting based at least in part on the capability report indicating that UE 120 supports a time domain base codebook or a Doppler domain base codebook.

[0130] In a third operation 815, the UE 120 may configure itself based at least in part on the configuration information. In some aspects, the UE 120 may be configured to perform one or more operations described herein based at least in part on the configuration information.

[0131] In a fourth operation 820, the network node 110 may send an indication of an uplink resource associated with reporting CSI, and the UE 120 may receive an indication of the uplink resource associated with reporting CSI. For example, the uplink resource may be a PUSCH resource. For example, upon successful decoding of a DCI that triggers an aperiodic CSI triggering state (e.g., a DCI associated with DCI format 0_1 ​​or DCI format 0_2 as defined by 3GPP or otherwise fixed), the UE 120 may perform aperiodic CSI reporting using a PUSCH on a serving cell associated with the network node 110. The aperiodic CSI triggering state may be configured for the UE 120 via configuration information. As another example, the UE 120 may perform semi-persistent CSI reporting on the PUSCH based at least in part on successful decoding of a DCI that activates a semi-persistent CSI triggering state (e.g., a DCI associated with DCI format 0_1 ​​or DCI format 0_2). The semi-persistent CSI triggering state may be configured via configuration information for UE 120. The DCI may contain a CSI request field indicating the semi-persistent CSI triggering state to be activated or deactivated.

[0132] As described elsewhere herein, for CSI feedback on the PUSCH, the CSI report may include two parts. Part 1 may have a fixed payload size and may be used to identify the amount of information bits in part 2. The UE 120 may send part 1 in its entirety before the UE 120 sends part 2. Part 1 may include an indication of the RI (if reported), the CQI, and an indication of the total amount of non-zero amplitude coefficients across layers. The fields of part 1 (e.g., the RI (if reported), the CQI, and an indication of the total amount of non-zero amplitude coefficients across layers) may be encoded separately by the UE 120 (from part 2). Part 2 may include an indication of the PMI. For example, part 2 may include time domain basis indices and coefficients. Additionally, part 2 may include: a spatial domain subset indicator (SD basis indicator) indicating the spatial domain basis vectors (i 1,1 、i 1,2 ) (e.g., the selected beam); a frequency domain subset indicator indicating the frequency domain basis vectors (i ) selected for each layer (0 to RI-1); 1,5 and i 1,6,l ); For each layer (0 to RI-1), the SCI indicates the strongest coefficient (i 1,8,l ) associated with an SD base index (or SD and frequency domain base index); a bitmap for each layer, which indicates the non-zero coefficients (i 1,7,l) associated with the time domain base index, space domain base index and frequency domain base index; or the selected non-zero coefficient (i 2,3,l 、i 2,4,l 、i 2,5,l ) ; and so on.

[0133] In a fifth operation 825, the network node 110 may send a reference signal (e.g., a downlink reference signal), and the UE 120 may receive the reference signal (e.g., a downlink reference signal). For example, the reference signal may be a CSI-RS, etc. The CSI-RS may be an aperiodic CSI-RS, a semi-persistent CSI-RS, or a periodic CSI-RS. The UE 120 may measure the CSI-RS. In a sixth operation 830, the UE 120 may determine CSI or PMI information based at least in part on the reference signal measurement. For example, the UE 120 may perform measurements associated with various spatial domain basis candidates or frequency domain basis candidates as indicated by a codebook associated with the CSI report. The UE 120 may select a spatial domain basis, a frequency domain basis, at least in part based on the measurement. Additionally, the UE 120 may select one or more time domain bases. For example, the UE 120 may observe (e.g., measure) one or more time instances (e.g., bases) of the PMI. UE 120 may extrapolate one or more other time instances (eg, basis) of the PMI based at least in part on the one or more observed time instances.

[0134] In a sixth operation 835, the UE 120 may determine that the uplink resources (e.g., as indicated by the network node 110 in the fourth operation 820) are insufficient. As used herein, the uplink resources being "insufficient" may refer to the uplink resources not being large enough to carry all information associated with one or more CSI reports to be sent via the uplink resources. For example, an uplink resource allocation (e.g., a PUSCH resource allocation) may not be sufficient to carry the entire contents of a CSI report. For example, UCI omission may occur when a network node does not accurately allocate PUSCH resources when scheduling a CSI report. For example, a network node may allocate resources for a rank 1 (RI=1) CSI report, but the UE may determine that a rank 2 (RI=2) CSI report is determined to be sent for rank 2 and the report size is larger than the size of the allocated PUSCH resources. In other words, when the network allocates uplink resources for a CSI report, the network (e.g., one or more network nodes 110) may not know the RI value to be selected by the UE 120. Thus, in some cases, the allocated uplink resources may not be sufficient (e.g., may not be large enough) to carry the entire contents of the CSI report. In such examples, UE 120 may omit some information from one or more CSI reports to enable UE 120 to send other information via insufficient uplink resources. When the CSI report on PUSCH includes two parts, UE 120 may omit a portion of Part 2 CSI. The omission of Part 2 CSI is performed according to the priority order of one or more groups associated with Part 2 CSI.

[0135] For example, a group may be associated with a corresponding priority level. When omitting part 2 CSI information for a particular priority level, UE 120 may omit all information in the information at that priority level. The group of CSI part 2 (or UCI part 2) may include at least one of the one or more groups, the at least one group being associated with a time domain base index value and a non-zero coefficient of the coefficient matrix. Fig. 9 The groups are depicted and described in more detail. For example, the one or more groups may include a first group (eg, group 0) that is associated with a spatial domain beam index value and a strongest coefficient index value (eg, index i 1,1 (if reported), i 1,2 (if reported) and i 1,8,l The one or more groups may include a second group (e.g., group 1) associated with the frequency domain base index value, the time domain base index value, and a first portion of non-zero coefficients of the coefficient matrix W2 associated with the PMI value (e.g., index i 1,5 (if reported), i 1,6,l (if reported), i 1,7,l The first half of the highest priority element of i2,3,l 、i 2,4,l The highest priority element and i 2,5,l The one or more groups may include a third group (e.g., group 2) that is associated with a second portion (e.g., a second half) of the non-zero coefficients of the coefficient matrix (e.g., i 1,7,l The second half of the lowest priority element of i 2,4,l and i 2,5,l ) is associated with.

[0136] The first portion of non-zero coefficients and the second portion of non-zero coefficients may be selected based at least in part on a priority ranking of the non-zero coefficients. In some aspects, the priority ranking of the non-zero coefficients may be associated with a time domain permutation of the coefficient matrix. Figures 10 to 13 Examples of prioritization of non-zero coefficients with example codebooks are depicted and described in further detail.

[0137] For example, the priority sorting of non-zero coefficients includes: sorting the non-zero coefficients based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation. In some aspects, the time domain permutation may be associated with the Doppler domain. In some aspects, the frequency domain permutation may be associated with the delay domain. The division of the non-zero coefficients into group 1 and group 2 may be based on the corresponding priorities of the non-zero coefficients. For example, if prio(l1,i1,m1,s1)>prio(l2,i2,m2,s2) (e.g., because a lower priority value is associated with a higher priority, such that priority value 0 has a higher priority than priority value 1), then the coefficient (e.g., associated with layer index value l1, spatial domain base index value i1, frequency domain base index value m1, and time domain base index value s1) may have a ratio (eg, coefficients associated with layer index value l2, spatial domain base index value i2, frequency domain base index value m2, and time domain base index value s2) Low priority.

[0138] In one example, prio(l,i,m,s) may be determined when the time domain is an external level. For example, the priority function may be defined as prio(l,i,m)=RI·2L·M·Perm_TD(s)+RI·2L·Perm_FD(m)+RI·i+l, where Perm_FD(m) maps the frequency domain base index in the order of the frequency domain components, such as 0, N3–1, 1, N3–2, 2, N3–3, 3,… and so on. Perm_FD(m) may also be expressed as π(f) (e.g., in the 3GPP technical specification). Perm_FD(m) may be similar or identical to Perm(m) described elsewhere in this document. Perm_TD(s) may map the index s in the order of the corresponding time domain components, as described in more detail elsewhere in this document. Perm_TD(s) may also be expressed as π(s) (e.g., in the 3GPP technical specification). The priority function may be interpreted as sorting the coefficients from highest priority to lowest priority, as follows:

[0139] For s′=Perm_TD(s)

[0140] For m′=Perm_FD(m)

[0141] For i=0:2L-1

[0142] For l = 0: RI-1

[0143] Mapping

[0144] In other words, the ordering of the non-zero coefficients may include ordering the coefficients of the permuted version of the coefficient matrix by ordering the frequency domain index and the spatial domain index for each corresponding time domain index of the permuted version of the coefficient matrix. Fig.10 and Fig.12 An example in which the time domain is the outer level prio(l,i,m,s) is depicted and described in more detail.

[0145] In some other aspects, prio(l,i,m,s) may be determined in the case where the frequency domain is an external level. For example, the priority function may be defined as prio(l,i,m)=RI·2L·S·Perm_FD(m)+RI·2L·Perm_TD(s)+RI·i+l. The priority function may be interpreted as sorting the coefficients from highest priority to lowest priority as follows:

[0146] For m′=Perm_FD(m)

[0147] For s′=Perm_TD(s)

[0148] For i=0:2L-1

[0149] For l = 0: RI-1

[0150] Mapping

[0151] In other words, the ordering of the non-zero coefficients may include ordering the coefficients of the permuted version of the coefficient matrix by ordering the time domain index and the spatial domain index for each corresponding frequency domain index of the permuted version of the coefficient matrix. Fig.11 and Fig.13 An example where the frequency domain is the outer level prio(l,i,m,s) is depicted and described in more detail.

[0152] In some aspects, in the seventh operation 840, the UE 120 may perform UCI omission (e.g., taking into account the time domain basis and coefficients). For example, the UE 120 may perform UCI omission (or CSI omission) based at least in part on the fact that the uplink resources to be used to send the UCI (or CSI) are insufficient (e.g., as determined in the sixth operation 835). For example, the size of the uplink resources may be insufficient for CSI reporting. In such examples, the UE 120 may include information in the following order (e.g., packing order): first including information associated with the first group (e.g., group 0), second including information associated with the second group (e.g., group 1), and third (e.g., last) including information associated with the third group (e.g., group 2). In other words, the UE 120 may omit information associated with at least one group from the one or more groups based at least in part on prioritizing the one or more groups (e.g., at least in part on prioritizing the first group over the second and third groups and at least in part on prioritizing the second group over the third group).

[0153] In some aspects, uplink resources (e.g., PUSCH) resources may be associated with multiple CSI reports. In such examples, UE 120 may omit information associated with one or more of the CSI reports based at least in part on prioritizing CSI reports from the multiple CSI reports in order of index values ​​of the multiple CSI reports. For example, in addition to prioritizing a group of given CSI reports, UE 120 may also prioritize the multiple CSI reports based at least in part on the index value. For example, CSI report 0 may have a higher priority than CSI report 1, which may have a higher priority than CSI report 2, and so on.

[0154] In an eighth operation 845, the UE 120 may use uplink resources (e.g., as indicated by the network node 110 in the fourth operation 820) to send UCI (e.g., indicating information associated with one or more CSI reports), and the network node 110 may use uplink resources (e.g., as indicated by the network node 110 in the fourth operation 820) to receive UCI (e.g., indicating information associated with one or more CSI reports). For example, the UE 120 may send a CSI report including an indication of a PMI value (e.g., a base index and a non-zero coefficient). The UCI may be associated with one or more groups for packing and prioritizing uplink resources, as explained in more detail elsewhere herein. In some aspects, the UE 120 may refrain from sending some information associated with the CSI report based at least in part on performing UCI omission (e.g., in the seventh operation 840). For example, UE 120 may refrain from including one or more PMI values ​​from the PMI values ​​based at least in part on including the information in the following order: information associated with a first group is first included in the CSI report, followed by information associated with a second group, and additionally followed by information associated with a third group. As another example, UE 120 may refrain from including one or more PMI values ​​from the PMI values ​​based at least in part on omitting information associated with at least one group from the one or more groups based at least in part on prioritizing the one or more groups. As another example, in the case where an uplink resource (e.g., a PUSCH resource) is associated with multiple CSI reports, UE 120 may refrain from including one or more PMI values ​​based at least in part on prioritizing the CSI reports from the multiple CSI reports in order of index values ​​of the multiple CSI reports.

[0155] The network node 110 may determine one or more communication parameters for the UE 120 based at least in part on the information included in the CSI report. For example, the network node 110 may determine a precoder based at least in part on the PMI included in the CSI report. The UE 120 and the network node 110 (e.g., RU) may communicate (e.g., send or receive) communications using the one or more communication parameters determined by the network node 110 or another network node 110 (e.g., DU or CU).

[0156] Fig. 9 is a diagram of an example 900 associated with UCI packing order and omission order for CSI according to the present disclosure. Fig. 9 As shown in FIG. 1 and described elsewhere herein, CSI reports (or UCI) may be divided into groups with corresponding priority levels. Fig. 9As shown, group 0 may have a first priority level, group 1 may have a second priority level, and group 2 may have a third priority level. The first priority level may be the highest priority level, followed by the second priority level, and then the third priority level.

[0157] For example, the packing order of UCI (or CSI report) may be associated with the descending priority level of each group. Fig. 9 As shown, group 0 may include: selected spatial domain basis vectors (i 1,1 、i 1,2 ) (e.g., the selected beam) and an indication of the strongest coefficient (i 1,8,l ) associated with the SD base index (or SD and frequency domain base index) for each layer (0 to RI-1). Group 1 may include: the frequency domain base index value, the selected time domain base index value, the reference amplitude index value, and the first part of the non-zero coefficients of the coefficient matrix W2 associated with the PMI value (e.g., index i 1,5 (if reported), i 1,6,l (if reported), i 1,7,l The first half of the highest priority element of i 2,3,l 、i 2,4,l The highest priority element and i 2,5,l Group 2 may include: a second portion (eg, a second half) of the non-zero coefficients of the coefficient matrix (eg, i 1,7,l The second half of the lowest priority element of i 2,4,l and i 2,5,l ). The first half of the NZC and the second half of the NZC may be determined based at least in part on prioritizing coefficients of the coefficient matrix, as described elsewhere herein.

[0158] UCI omissions may be associated with a UCI omission order. Fig. 9 As shown, the omission order may be based at least in part on the index value associated with the CSI report. For example, CSI report 0 may have a higher priority than CSI report 1, CSI report 1 may have a higher priority than CSI report 2, and so on. Additionally, the UCI omission order may be based at least in part on the group of a given CSI report, as described above.

[0159] For example, assuming that a PUSCH resource is associated with two CSI reports (eg, CSI report 1 and CSI report 2), the omission order for discarding or omitting information from UCI carried via the PUSCH resource may follow: Fig. 9. For example, the omission order may indicate that information associated with group 2 for CSI report 2 will be omitted or discarded first. The omission order may indicate that information associated with group 1 for CSI report 2 will be omitted or discarded second. The omission order may indicate that information associated with group 2 for CSI report 1 will be omitted or discarded third. The omission order may indicate that information associated with group 1 for CSI report 1 will be omitted or discarded fourth. The omission order may indicate that information associated with group 0 for all CSI reports will be omitted or discarded fifth (or last). When the PUSCH resources allocated for the CSI report are insufficient to indicate all information associated with the CSI report, following the omission order for UCI omission may enable the UE to include more important information in the CSI report.

[0160] Fig.10 is a diagram of example 1000 associated with coefficient prioritization for a coefficient matrix associated with a PMI in accordance with the present disclosure. Fig.10 The coefficient matrix depicted in may be associated with a time domain based codebook or a Doppler domain based codebook, as described in more detail elsewhere herein. For example, the codebook may be or The coefficient matrix W2 is Fig.10 Depicted in.

[0161] For example, the coefficient matrix may be associated with one or more sets of coefficients. Each set from the one or more sets may be associated with a corresponding frequency domain base index (e.g., Fig.10 For example, a first set or group of coefficients may be associated with a delay domain basis (m) 0, a second set or group of coefficients may be associated with a delay domain basis (m) 1, and so on (e.g., for all delay domain basis index values ​​0 to N3-1). Each set may include a time domain basis index s associated with a coefficient matrix (e.g., as shown in FIG. Fig.10 The columns of the Doppler domain basis index (as depicted in FIG. 1 ) and the rows of the space domain basis index i associated with the coefficient matrix. For example, Fig.10 As shown, a given set or group of coefficients associated with a given delay domain base index value may include coefficients for all Doppler domain index values ​​(e.g., 0 to N4-1) and coefficients for all spatial domain index values ​​(e.g., 0 to 2L-1). Fig.10 Each block shown may be associated with a plurality of coefficients for a corresponding layer (eg, coefficients for layers 0 through RI-1).

[0162] like Fig.10As shown, the priority ordering of the coefficients of the coefficient matrix may be associated with one or more permutations of the coefficient matrix. For example, a FD permutation (e.g., Perm_FD(m)) may be performed. The frequency domain permutation may be associated with reordering the sets or groups of coefficients in the order indicated by Perm_FD(m). For example, Fig.10 The depicted order of frequency domain permutations may be {0, N3-1, 1, N3-2, 2, ..., N3 / 2}. This order is provided as an example, and other orders are possible.

[0163] In some aspects, the priority ordering of the coefficients of the coefficient matrix may be associated with a time domain (TD) permutation (e.g., Perm_TD(s)). In other examples, the time domain permutation may not be performed. For example, the columns of the coefficient matrix may be reordered according to the order indicated by the time domain permutation. For example, the columns of the coefficient matrix may be reordered to the order of {0, N4-1, 1, N4-2, 2, ..., N4 / 2}.

[0164] After permuting the coefficient matrix, the coefficients may be sorted in order of priority. For example, the coefficients may be sorted from the highest priority (eg, priority level 0) to the lowest priority. Fig.10 As shown, the ordering of the coefficients may include ordering the coefficients of the permuted version of the coefficient matrix by ordering the coefficients of one or more sets associated with each corresponding column of the rows of the spatial domain base index and the columns of the time domain base index in order of the columns. In other words, starting at the first row and the first column (e.g., associated with Doppler domain base index value 0), the coefficients may be ordered in descending order along the columns through each delay domain index value set. After the last coefficient associated with the column (e.g., associated with Doppler domain base index value 0) has been ordered or mapped to a priority level, the coefficients included in the first row and the next column (e.g., associated with Doppler domain base index value N4-1) may be ordered or mapped to a priority level.

[0165] Priority mapping or sorting may continue in a similar manner until all coefficients have been mapped to priority levels. UE 120 may identify a first half of non-zero coefficients based at least in part on sorting all non-zero coefficients in an order associated with the priority mapping, and taking a first half of non-zero coefficients according to the priority mapping order. The remaining non-zero coefficients may be included in a second half of non-zero coefficients (e.g., and may be associated with group 2).

[0166] Fig.11 is a diagram of an example 1100 associated with coefficient prioritization for a coefficient matrix associated with a PMI according to the present disclosure. Fig.11The coefficient matrix depicted in may be associated with a time domain based codebook or a Doppler domain based codebook, as described in more detail elsewhere herein. For example, the codebook may be or The coefficient matrix W2 is Fig.11 Depicted in.

[0167] For example, the coefficient matrix can be expressed as Fig.10 The coefficient matrices depicted in are the same or similar. Fig.11 As shown, the priority ordering of the coefficients of the coefficient matrix may be associated with one or more permutations of the coefficient matrix. For example, a frequency domain permutation (e.g., Perm_FD(m)) may be performed. The frequency domain permutation may be associated with reordering the sets or groups of coefficients in the order indicated by Perm_FD(m). For example, Fig.10 The depicted order of frequency domain permutations may be {0, N3-1, 1, N3-2, 2, ..., N3 / 2}. This order is provided as an example, and other orders are possible.

[0168] In some aspects, the priority ordering of the coefficients of the coefficient matrix may be associated with the time domain permutation (e.g., Perm_TD(s)). In other examples, the time domain permutation may not be performed. For example, the columns of the coefficient matrix may be reordered according to the order indicated by the time domain permutation. For example, the columns of the coefficient matrix may be reordered to the order of {0, N4-1, 1, N4-2, 2, ..., N4 / 2}.

[0169] After permuting the coefficient matrix, the coefficients may be sorted in order of priority. For example, the coefficients may be sorted from the highest priority (eg, priority level 0) to the lowest priority. Fig.11 As shown, the ordering of the coefficients of the permuted version of the coefficient matrix may include: ordering the coefficients of the rows of the spatial domain base index and the columns of the time domain base index for each corresponding set in the one or more sets in the order of one or more sets. For example, the coefficients may be ordered in descending order of the rows for each column. All columns and rows associated with a given frequency domain base index value (e.g., a given delay domain index value) may be mapped or sorted before moving to map or sort the coefficients associated with the next frequency domain base index value (e.g., the next delay domain index value) as indicated by the order of the frequency domain permutation. For example, all coefficients associated with the delay domain index value 0 may be mapped, followed by all coefficients associated with the delay domain index value N3-1, followed by all coefficients associated with the delay domain index value 2, and so on, until all coefficients are mapped to the priority level.

[0170] Fig.12is a diagram of example 1200 associated with coefficient prioritization for a coefficient matrix associated with a PMI according to the present disclosure. Fig.12 The coefficient matrix depicted in may be associated with a time domain based codebook or a Doppler domain based codebook, as described in more detail elsewhere herein. For example, the codebook may be or where H is the index of the channel and where the coefficient matrix W2 is in Fig.12 Depicted in.

[0171] like Fig.12 As shown, the coefficient matrix may be associated with one or more sets of coefficients (e.g., associated with corresponding Doppler domain index values). Each set from the one or more sets may be associated with a time domain base index (e.g., Doppler domain index value). Each set includes columns of frequency domain base indices (e.g., delay domain index values) associated with the coefficient matrix and rows of space domain base indices associated with the coefficient matrix.

[0172] like Fig.12 As shown, the priority ordering of the coefficients of the coefficient matrix may be associated with one or more permutations of the coefficient matrix. For example, a frequency domain permutation (e.g., Perm_FD(m)) may be performed. The frequency domain permutation may be associated with reordering the columns of the coefficient matrix in the order indicated by Perm_FD(m). For example, Fig.12 The depicted order of frequency domain permutations may be {0, N3-1, 1, N3-2, 2, ..., N3 / 2}. This order is provided as an example, and other orders are possible.

[0173] In some aspects, the priority ordering of the coefficients of the coefficient matrix may be associated with the time domain permutation (e.g., Perm_TD(s)). In other examples, the time domain permutation may not be performed. For example, the set of coefficient matrices may be reordered according to the order indicated by the time domain permutation. For example, the set of coefficient matrices may be reordered to the order of {0, N4-1, 1, N4-2, 2, ..., N4 / 2}. This order is provided as an example, and other orders are also possible.

[0174] After permuting the coefficient matrix, the coefficients may be sorted in order of priority. For example, the coefficients may be sorted from the highest priority (eg, priority level 0) to the lowest priority. Fig.12As shown, the ordering of the coefficients of the permuted version of the coefficient matrix may include: ordering the coefficients of the rows of the spatial domain base index and the columns of the frequency domain base index (delay domain) for each corresponding set in the one or more sets in the order of one or more sets. For example, the coefficients may be ordered in descending order of the rows for each column. All columns and rows associated with a given time domain base index value (e.g., a given Doppler domain index value) may be mapped or ordered before moving to map or order the coefficients associated with the next time domain base index value (e.g., the next Doppler domain index value) as indicated by the order of the time domain permutation. For example, all coefficients associated with Doppler domain index value 0 may be mapped, followed by all coefficients associated with Doppler domain index value N4-1, followed by all coefficients associated with Doppler domain index value 2, and so on, until all coefficients are mapped to the priority level.

[0175] Fig.13 is a diagram of example 1300 associated with coefficient prioritization for a coefficient matrix associated with a PMI according to the present disclosure. Fig.12 The coefficient matrix depicted in may be associated with a time domain based codebook or a Doppler domain based codebook, as described in more detail elsewhere herein. For example, the codebook may be or where H is the index of the channel and where the coefficient matrix W2 is in Fig.13 Depicted in.

[0176] like Fig.13 As shown, the coefficient matrix may be associated with one or more sets of coefficients (e.g., associated with corresponding Doppler domain index values). Each set from the one or more sets may be associated with a frequency domain base index (e.g., a delay domain index value). Each set includes columns of time domain base indices (e.g., Doppler domain index values) associated with the coefficient matrix and rows of space domain base indices associated with the coefficient matrix.

[0177] like Fig.13 As shown, the priority ordering of the coefficients of the coefficient matrix may be associated with one or more permutations of the coefficient matrix. For example, a frequency domain permutation (e.g., Perm_FD(m)) may be performed. The frequency domain permutation may be associated with reordering the set of coefficient matrices in the order indicated by Perm_FD(m). For example, Fig.12 The depicted order of frequency domain permutations may be {0, N3-1, 1, N3-2, 2, ..., N3 / 2}. This order is provided as an example, and other orders are possible.

[0178] In some aspects, the priority ordering of the coefficients of the coefficient matrix may be associated with the time domain permutation (e.g., Perm_TD(s)). In other examples, the time domain permutation may not be performed. For example, the columns of the coefficient matrix may be reordered according to the order indicated by the time domain permutation. For example, the columns of the coefficient matrix may be reordered to the order of {0, N4-1, 1, N4-2, 2, ..., N4 / 2}. This order is provided as an example, and other orders are also possible.

[0179] After permuting the coefficient matrix, the coefficients may be sorted in order of priority. For example, the coefficients may be sorted from the highest priority (eg, priority level 0) to the lowest priority. Fig.13 As shown, the ordering of the coefficients of the permuted version of the coefficient matrix may include: ordering the coefficients of the rows of the spatial domain base index and the columns of the time domain base index for each corresponding set in the one or more sets in the order of one or more sets. For example, the coefficients may be ordered in descending order of the rows for each column. All columns and rows associated with a given frequency domain base index value (e.g., a given delay domain index value) may be mapped or sorted before moving to map or sort the coefficients associated with the next frequency domain base index value (e.g., the next delay domain index value) as indicated by the order of the frequency domain permutation. For example, all coefficients associated with the delay domain index value 0 may be mapped, followed by all coefficients associated with the delay domain index value N3-1, followed by all coefficients associated with the delay domain index value 2, and so on, until all coefficients are mapped to the priority level.

[0180] Fig.14 14 is a flow diagram illustrating an example process 1400 associated with UCI packing and prioritization for CSI, performed, for example, by a UE, in accordance with the present disclosure. Example process 1400 is an example of operations in which a UE (e.g., UE 120) performs uplink control information packing and prioritization for CSI.

[0181] like Fig.14 As shown, in some aspects, process 1400 may include receiving an indication of uplink resources associated with reporting CSI from a network node (block 1410). For example, a UE (such as by using Fig.16 The communication manager 140 or receiving component 1602 depicted in FIG. 1 may receive an indication of uplink resources associated with reporting CSI from a network node, as described above.

[0182] like Fig.14As further shown, in some aspects, process 1400 may include sending, to a network node and using uplink resources, UCI for a CSI report including a CSI report indicating a PMI value based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report (block 1420). For example, a UE (such as by using Fig.16 The communication manager 140 or the sending component 1604 depicted in the figure may send UCI of a CSI report including a PMI value to a network node and using uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report, as described above.

[0183] Process 1400 may include additional aspects, such as any single aspect or any combination of aspects described below or in combination with one or more other processes described elsewhere herein.

[0184] In a first additional aspect, the groups include: a first group associated with spatial domain beam index values ​​and a strongest coefficient index (SCI); a second group associated with frequency domain base index values, time domain base index values, and a first portion of non-zero coefficients of a coefficient matrix associated with a PMI value; and a third group associated with a second portion of non-zero coefficients of the coefficient matrix, wherein at least one group is the second group.

[0185] In a second additional aspect, alone or in combination with the first aspect, the size of the uplink resources is insufficient for CSI reporting, and sending UCI includes: suppressing including one or more PMI values ​​from the PMI values ​​based at least in part on including information in the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group.

[0186] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the first portion of non-zero coefficients comprises a first half of the non-zero coefficients, and the second portion of non-zero coefficients comprises a second half of the non-zero coefficients.

[0187] In a fourth additional aspect, alone or in combination with one or more of the first to third aspects, the codebook comprises a time domain based codebook or a Doppler domain based codebook.

[0188] In a fifth additional aspect, alone or in combination with one or more of the first to fourth aspects, the first portion of non-zero coefficients and the second portion of non-zero coefficients are selected based at least in part on a priority ranking of the non-zero coefficients.

[0189] In a sixth additional aspect, either alone or in combination with one or more of aspects 1 to 5, the priority sorting of non-zero coefficients comprises sorting the non-zero coefficients based at least in part on a permuted version of the coefficient matrix, wherein the permuted version comprises at least one of a time domain permutation and a frequency domain permutation.

[0190] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, the time domain permutation is associated with the Doppler domain and the frequency domain permutation is associated with the delay domain.

[0191] In an eighth additional aspect, either alone or in combination with one or more of aspects one to seven, the ordering of non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices for each corresponding time domain index of the permuted version of the coefficient matrix.

[0192] In a ninth additional aspect, either alone or in combination with one or more of aspects one to eight, the ordering of non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix for all time domain indices and spatial domain indices for each corresponding frequency domain index of the permuted version of the coefficient matrix.

[0193] In a tenth additional aspect, either alone or in combination with one or more of aspects one to nine, a coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a corresponding frequency domain base index, and wherein each set comprises columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients comprises ordering the coefficients of a permuted version of the coefficient matrix by ordering the coefficients of one or more sets associated with each corresponding column of the rows of the spatial domain base indices and the columns of the time domain base indices in column order.

[0194] In an eleventh additional aspect, alone or in combination with one or more of aspects one to ten, a coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a frequency domain base index, and wherein each set comprises columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients comprises ordering the coefficients of a permuted version of the coefficient matrix by ordering the coefficients of the rows of spatial domain base indices and the columns of time domain base indices for each corresponding set in the one or more sets in the order of the one or more sets.

[0195] In a twelfth additional aspect, either alone or in combination with one or more of aspects one to eleven, a coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a time domain base index, and wherein each set comprises columns of frequency domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients comprises ordering the coefficients of a permuted version of the coefficient matrix by ordering the coefficients of the rows of the spatial domain base indices and the columns of the frequency domain base indices for each corresponding set in the one or more sets in the order of the one or more sets.

[0196] In a thirteenth additional aspect, alone or in combination with one or more of aspects one to twelfth, the size of the uplink resources is insufficient for CSI reporting, and sending UCI includes: suppressing one or more PMI values ​​from the PMI values ​​based at least in part on: omitting information associated with at least one group from the group based at least in part on prioritizing the groups.

[0197] In a fourteenth additional aspect, alone or in combination with one or more of aspects 1 to thirteen, UCI is associated with multiple CSI reports comprising CSI reports, and suppressing including one or more PMI values ​​is based at least in part on the following operations: prioritizing CSI reports from multiple CSI reports in order of index values ​​of the multiple CSI reports.

[0198] Although Fig.14 An example block diagram of process 1400 is shown, but in some aspects, the same Fig.14 The process 1400 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks compared to those blocks depicted in the process 1400. Additionally or alternatively, two or more of the blocks in the process 1400 may be executed in parallel.

[0199] Fig.15is a flow chart illustrating an example process 1500 associated with UCI packing and prioritization for CSI, performed, for example, by a network node, in accordance with the present disclosure. The example process 1500 is an example of operations in which a network node (e.g., network node 110) performs operations associated with UCI packing and prioritization for CSI.

[0200] like Fig.15 As shown, in some aspects, process 1500 may include sending an indication of uplink resources intended for the UE associated with reporting CSI (block 1510). For example, a network node (such as by using Fig.17 The communication manager 150 or the sending component 1704 depicted in FIG. 1 may send an indication of uplink resources associated with reporting CSI intended for the UE, as described above.

[0201] like Fig.15 As further shown, in some aspects, process 1500 may include receiving UCI associated with a UE and an uplink resource, the UCI including a CSI report indicating a PMI value, the UCI being associated with a group for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report (block 1520). For example, a network node (such as by using Fig.17 The communication manager 150 or receiving component 1702 depicted in the figure may receive UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI being associated with groups for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report, as described above.

[0202] Process 1500 may include additional aspects, such as any single aspect or any combination of aspects described below or in combination with one or more other processes described elsewhere herein.

[0203] In a first additional aspect, the groups include: a first group associated with spatial domain beam index values ​​and the strongest coefficient index; a second group associated with frequency domain index values, time domain index values, and a first portion of non-zero coefficients; and a third group associated with a second portion of non-zero coefficients of the coefficient matrix, wherein at least one group is the second group.

[0204] In a second additional aspect, alone or in combination with the first aspect, the size of the uplink resources is insufficient for CSI reporting, and the UCI does not include one or more PMI values ​​from the PMI values, based at least in part on the information being prioritized in the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group.

[0205] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the first portion of non-zero coefficients comprises a first half of the non-zero coefficients, and the second portion of non-zero coefficients comprises a second half of the non-zero coefficients.

[0206] In a fourth additional aspect, alone or in combination with one or more of the first to third aspects, the codebook comprises a time domain based codebook or a Doppler domain based codebook.

[0207] In a fifth additional aspect, alone or in combination with one or more of the first to fourth aspects, the first portion of non-zero coefficients and the second portion of non-zero coefficients are selected based at least in part on a priority ranking of the non-zero coefficients.

[0208] In a sixth additional aspect, either alone or in combination with one or more of aspects 1 to 5, the priority sorting of non-zero coefficients comprises sorting the non-zero coefficients based at least in part on a permuted version of the coefficient matrix, wherein the permuted version comprises at least one of a time domain permutation and a frequency domain permutation.

[0209] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, the time domain permutation is associated with the Doppler domain and the frequency domain permutation is associated with the delay domain.

[0210] In an eighth additional aspect, either alone or in combination with one or more of aspects one to seven, the ordering of non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices for each corresponding time domain index of the permuted version of the coefficient matrix.

[0211] In a ninth additional aspect, either alone or in combination with one or more of aspects one to eight, the ordering of non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix for all time domain indices and spatial domain indices for each corresponding frequency domain index of the permuted version of the coefficient matrix.

[0212] In a tenth additional aspect, either alone or in combination with one or more of aspects one to nine, a coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a corresponding frequency domain base index, and wherein each set comprises columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients comprises ordering the coefficients of a permuted version of the coefficient matrix by ordering the coefficients of one or more sets associated with each corresponding column of the rows of the spatial domain base indices and the columns of the time domain base indices in column order.

[0213] In an eleventh additional aspect, alone or in combination with one or more of aspects one to ten, a coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a frequency domain base index, and wherein each set comprises columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients comprises ordering the coefficients of a permuted version of the coefficient matrix by ordering the coefficients of the rows of spatial domain base indices and the columns of time domain base indices for each corresponding set in the one or more sets in the order of the one or more sets.

[0214] In a twelfth additional aspect, either alone or in combination with one or more of aspects one to eleven, a coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a time domain base index, and wherein each set comprises columns of frequency domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients comprises ordering the coefficients of a permuted version of the coefficient matrix by ordering the coefficients of the rows of the spatial domain base indices and the columns of the frequency domain base indices for each corresponding set in the one or more sets in the order of the one or more sets.

[0215] In a thirteenth additional aspect, alone or in combination with one or more of the first to twelfth aspects, the groups include: a first group associated with spatial domain beam index values ​​and the strongest coefficient index values; a second group associated with frequency domain index values, time domain index values, and a first portion of non-zero coefficients; and a third group associated with a second portion of non-zero coefficients of the coefficient matrix, and wherein the UCI does not include one or more PMI values ​​from the PMI values, which is at least partially based on: information associated with one or more groups is omitted based at least partially on prioritizing the first group over the second and third groups and at least partially on prioritizing the second group over the third group.

[0216] In a fourteenth additional aspect, alone or in combination with one or more of aspects one to thirteen, UCI is associated with multiple CSI reports comprising CSI reports, and information associated with one or more groups is omitted and is also based at least in part on the following operations: prioritizing CSI reports from multiple CSI reports in order of index values ​​of the multiple CSI reports.

[0217] Although Fig.15 An example block diagram of process 1500 is shown, but in some aspects, the same Fig.15 The process 1500 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks compared to those blocks depicted in the process 1500. Additionally or alternatively, two or more of the blocks in the process 1500 may be executed in parallel.

[0218] Fig.16 1 is a diagram of an example apparatus 1600 for wireless communication according to the present disclosure. Apparatus 1600 may be a UE, or a UE may include apparatus 1600. In some aspects, apparatus 1600 includes a receiving component 1602, a sending component 1604, and a communication manager 140, which may communicate with each other (e.g., via one or more buses). As shown, apparatus 1600 may communicate with another apparatus 1606 (such as a UE, a network node, or another wireless communication device) using receiving component 1602 and sending component 1604.

[0219] In some aspects, the apparatus 1600 may be configured to perform Figures 8 to 13 Additionally or alternatively, the apparatus 1600 may be configured to perform one or more processes described herein, such as Fig.14 In some aspects, the apparatus 1600 may include the process 1400 described above in combination with Figure 2 One or more components of a UE are described.

[0220] The receiving component 1602 may receive communications from the device 1606, such as reference signals, control information, data communications, or a combination thereof. The receiving component 1602 may provide the received communications to one or more other components of the device 1600, such as the communications manager 140. In some aspects, the receiving component 1602 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components. In some aspects, the receiving component 1602 may include the above in combination with Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.

[0221] The transmitting component 1604 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1606. In some aspects, the communication manager 140 may generate communications and may transmit the generated communications to the transmitting component 1604 for transmission to the device 1606. In some aspects, the transmitting component 1604 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1606. In some aspects, the transmitting component 1604 may include the above in combination with Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 1604 can be co-located with the receive component 1602 in a transceiver.

[0222] The communication manager 140 may receive from the network node or may cause the receiving component 1602 to receive from the network node an indication of uplink resources associated with reporting CSI. The communication manager 140 may send to the network node and use uplink resources based at least in part on prioritizing groups of information associated with the CSI report, or may cause the sending component 1604 to send to the network node and use uplink resources UCI of the CSI report including a CSI report indicating a PMI value based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report. In some aspects, the communication manager 140 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 140.

[0223] The communication manager 140 may include the above combined Figure 2 Controller / processor, memory, or combination thereof of the UE described. In some aspects, the communication manager 140 includes a component set, such as a prioritization component 1608, a UCI omission component 1610, or a combination thereof. Alternatively, the component set may be separate and distinct from the communication manager 140. In some aspects, one or more components in the component set may include the above-mentioned components. Figure 2 The controller / processor, memory, or combination thereof of the described UE may be implemented therein. Additionally or alternatively, one or more components in the component set may be at least partially implemented as software stored in the memory. For example, a component (or a portion of a component) may be implemented as an instruction or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0224] Receiving component 1602 may receive an indication of uplink resources associated with reporting CSI from a network node. Sending component 1604 may send UCI of a CSI report including a CSI report indicating a PMI value to the network node and using uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0225] The prioritization component 1608 can prioritize one or more groups. The prioritization component 1608 can prioritize coefficients associated with the coefficient matrix based at least in part on the ordering of the coefficients. The UCI omission component 1610 can omit information from the UCI based at least in part on the size of the uplink resources being insufficient.

[0226] Fig.16 The number and arrangement of components shown in the figure are provided as examples. In practice, Fig.16 There may be additional components, fewer components, different components, or differently arranged components than those shown in FIG. Fig.16 Two or more components shown in may be implemented in a single component, or Fig.16 The single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Fig.16 The assembly of (one or more) components shown in the executable is described as being composed of Fig.16 One or more functions performed by another set of components shown in .

[0227] Fig.17 1 is a diagram of an example apparatus 1700 for wireless communication according to the present disclosure. Apparatus 1700 may be a network node, or a network node may include apparatus 1700. In some aspects, apparatus 1700 includes a receiving component 1702, a sending component 1704, and a communication manager 150, which may communicate with each other (e.g., via one or more buses). As shown, apparatus 1700 may communicate with another apparatus 1706 (such as a UE, a network node, or another wireless communication device) using receiving component 1702 and sending component 1704.

[0228] In some aspects, the apparatus 1700 may be configured to perform Figures 8 to 13 Additionally or alternatively, the apparatus 1700 may be configured to perform one or more of the processes described herein, such as Fig.15 In some aspects, the apparatus 1700 may include the process 1500 described above in combination with Figure 2 One or more components of a described network node.

[0229] The receiving component 1702 may receive communications from the device 1706, such as reference signals, control information, data communications, or a combination thereof. The receiving component 1702 may provide the received communications to one or more other components of the device 1700, such as the communications manager 150. In some aspects, the receiving component 1702 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components. In some aspects, the receiving component 1702 may include the above in combination with Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the described network nodes.

[0230] The transmission component 1704 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1706. In some aspects, the communication manager 150 may generate communications and may transmit the generated communications to the transmission component 1704 for transmission to the device 1706. In some aspects, the transmission component 1704 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1706. In some aspects, the transmission component 1704 may include the above in combination with Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the transmit component 1704 can be co-located with the receive component 1702 in a transceiver.

[0231] The communication manager 150 may send or may cause the sending component 1704 to send an indication of uplink resources associated with the reported CSI intended for the UE. The communication manager 150 may receive or may cause the receiving component 1702 to receive UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI associated with a group for packing priority ordering of the uplink resources, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix. In some aspects, the communication manager 150 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 150.

[0232] The communication manager 150 may include the above combined Figure 2The controller / processor, memory, scheduler, communication unit, or combination thereof of the network node described herein. In some aspects, the communication manager 150 includes a component set, such as determining component 1708, or a combination thereof. Alternatively, the component set may be separate and distinct from the communication manager 150. In some aspects, one or more components in the component set may include the components described above in conjunction with Figure 2 The controller / processor, memory, scheduler, communication unit, or combination thereof of the described network node, or may be implemented therein. Additionally or alternatively, one or more components in the component set may be at least partially implemented as software stored in the memory. For example, a component (or a portion of a component) may be implemented as an instruction or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0233] The transmitting component 1704 can transmit an indication of uplink resources associated with the reported CSI intended for the UE. The receiving component 1702 can receive UCI associated with the UE and the uplink resources, the UCI including a CSI report indicating a PMI value, the UCI associated with a group for packing priority ordering of the uplink resources, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix.

[0234] Determining component 1708 can determine a precoder for the UE based at least in part on the CSI report.

[0235] Fig.17 The number and arrangement of components shown in the figure are provided as examples. In practice, Fig.17 There may be additional components, fewer components, different components, or differently arranged components than those shown in FIG. Fig.17 Two or more components shown in may be implemented in a single component, or Fig.17 The single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Fig.17 The assembly of (one or more) components shown in the executable is described as being composed of Fig.17 One or more functions performed by another set of components shown in .

[0236] The following provides an overview of some aspects of the disclosure:

[0237] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving an indication of uplink resources associated with reporting channel state information (CSI) from a network node; and sending uplink control information (UCI) of the CSI report including an indication of a precoding matrix indicator (PMI) value to the network node and using the uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0238] Aspect 2: A method according to Aspect 1, wherein the groups include: a first group, the first group being associated with a spatial domain beam index value and a strongest coefficient index (SCI); a second group, the second group being associated with a frequency domain base index value, the time domain base index value, and a first part of the non-zero coefficients of the coefficient matrix associated with the PMI value; and a third group, the third group being associated with a second part of the non-zero coefficients of the coefficient matrix, wherein at least one of the groups is the second group.

[0239] Aspect 3: A method according to Aspect 2, wherein the size of the uplink resources is insufficient for the CSI report, and wherein sending the UCI includes: suppressing including one or more PMI values ​​from the PMI values ​​based at least in part on including information in the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group.

[0240] Aspect 4: The method according to any one of aspects 2 to 3, wherein the first portion of the non-zero coefficients includes a first half of the non-zero coefficients, and the second portion of the non-zero coefficients includes a second half of the non-zero coefficients.

[0241] Aspect 5: The method according to any one of Aspects 1 to 4, wherein the codebook comprises a time domain based codebook or a Doppler domain based codebook.

[0242] Aspect 6: The method according to any one of aspects 1 to 5, wherein the first portion of non-zero coefficients and the second portion of non-zero coefficients are selected based at least in part on a priority ranking of the non-zero coefficients.

[0243] Aspect 7: A method according to aspect 6, wherein the priority sorting of the non-zero coefficients includes: sorting the non-zero coefficients based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation.

[0244] Aspect 8: The method according to aspect 7, wherein the time domain permutation is associated with the Doppler domain, and the frequency domain permutation is associated with the delay domain.

[0245] Aspect 9: A method according to any one of Aspects 7 to 8, wherein the sorting of the non-zero coefficients comprises: for each corresponding time domain index of the permuted version of the coefficient matrix, sorting the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices.

[0246] Aspect 10: A method according to any one of Aspects 7 to 8, wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix in the following manner: for each corresponding frequency domain index of the permuted version of the coefficient matrix, sorting the time domain index and the spatial domain index.

[0247] Aspect 11: A method according to any one of Aspects 7 to 10, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a corresponding frequency domain base index, and wherein each set includes columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix in the following manner: sorting the coefficients of the one or more sets associated with each corresponding column of the rows of the spatial domain base indices and the columns of the time domain base indices in order of the columns.

[0248] Aspect 12: A method according to any one of Aspects 7 to 10, wherein the coefficient matrix is ​​associated with one or more coefficient sets, wherein each set from the one or more sets is associated with a frequency domain base index, and wherein each set includes columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix in the following manner: sorting the coefficients of the rows of the spatial domain base indices and the columns of the time domain base indices for each corresponding set in the one or more sets in the order of the one or more sets.

[0249] Aspect 13: A method according to any one of Aspects 7 to 10, wherein the coefficient matrix is ​​associated with one or more coefficient sets, wherein each set from the one or more sets is associated with a time domain base index, and wherein each set includes columns of frequency domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients includes ordering the coefficients of the permuted version of the coefficient matrix in the following manner: in the order of the one or more sets, for each corresponding set in the one or more sets, the coefficients of the rows of the spatial domain base indices and the columns of the frequency domain base indices are ordered.

[0250] Aspect 14: A method according to any one of Aspects 1 to 13, wherein the size of the uplink resources is insufficient for the CSI report, and wherein sending the UCI includes: suppressing one or more PMI values ​​including from the PMI values ​​based at least in part on: omitting information associated with at least one group from the group based at least in part on prioritizing the groups.

[0251] Aspect 15: A method according to Aspect 14, wherein the UCI is associated with multiple CSI reports including the CSI report, and wherein suppressing including the one or more PMI values ​​is based at least in part on the following operation: prioritizing the CSI reports from the multiple CSI reports in order of index values ​​of the multiple CSI reports.

[0252] Aspect 16: A method of wireless communication performed by a network node, the method comprising: sending an indication of uplink resources associated with reporting channel state information (CSI) intended for a user equipment (UE); and receiving uplink control information (UCI) associated with the UE and the uplink resources, the UCI comprising a CSI report indicating a precoding matrix indicator (PMI) value, the UCI being associated with a group for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

[0253] Aspect 17: A method according to Aspect 16, wherein the groups include: a first group, the first group being associated with a spatial domain beam index value and a strongest coefficient index (SCI); a second group, the second group being associated with a frequency domain index value, the time domain index value and a first part of the non-zero coefficients; and a third group, the third group being associated with a second part of the non-zero coefficients of the coefficient matrix, wherein at least one of the groups is the second group.

[0254] Aspect 18: A method according to Aspect 17, wherein the size of the uplink resources is insufficient for the CSI report, and wherein the UCI does not include one or more PMI values ​​from the PMI values, which is at least partially based on the information being prioritized in the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group.

[0255] Aspect 19: The method according to any one of aspects 17 to 18, wherein the first portion of the non-zero coefficients includes a first half of the non-zero coefficients, and the second portion of the non-zero coefficients includes a second half of the non-zero coefficients.

[0256] Aspect 20: The method according to any one of aspects 16 to 19, wherein the codebook comprises a time domain based codebook or a Doppler domain based codebook.

[0257] Aspect 21: The method of any one of aspects 16 to 20, wherein the first portion of non-zero coefficients and the second portion of non-zero coefficients are selected based at least in part on a priority ranking of the non-zero coefficients.

[0258] Aspect 22: A method according to aspect 21, wherein the priority sorting of the non-zero coefficients includes: sorting the non-zero coefficients based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation.

[0259] Aspect 23: The method according to aspect 22, wherein the time domain permutation is associated with the Doppler domain and the frequency domain permutation is associated with the delay domain.

[0260] Aspect 24: A method according to any one of Aspects 22 to 23, wherein the sorting of the non-zero coefficients comprises: for each corresponding time domain index of the permuted version of the coefficient matrix, sorting the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices.

[0261] Aspect 25: A method according to any one of Aspects 22 to 23, wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix in the following manner: for each corresponding frequency domain index of the permuted version of the coefficient matrix, sorting the time domain index and the spatial domain index.

[0262] Aspect 26: A method according to any one of Aspects 22 to 25, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a corresponding frequency domain base index, and wherein each set includes columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix in the following manner: sorting the coefficients of the one or more sets associated with each corresponding column of the rows of the spatial domain base indices and the columns of the time domain base indices in order of the columns.

[0263] Aspect 27: A method according to any one of Aspects 22 to 25, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a frequency domain base index, and wherein each set includes columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients includes ordering the coefficients of the permuted version of the coefficient matrix in the following manner: in the order of the one or more sets, for each corresponding set in the one or more sets, the coefficients of the rows of the spatial domain base indices and the columns of the time domain base indices are ordered.

[0264] Aspect 28: A method according to any one of Aspects 22 to 25, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a time domain base index, and wherein each set includes columns of frequency domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients includes ordering the coefficients of the permuted version of the coefficient matrix in the following manner: in the order of the one or more sets, for each corresponding set in the one or more sets, the coefficients of the rows of the spatial domain base indices and the columns of the frequency domain base indices are ordered.

[0265] Aspect 29: A method according to any one of Aspects 16 to 28, wherein the groups include: a first group, the first group being associated with spatial domain beam index values ​​and the strongest coefficient index values; a second group, the second group being associated with frequency domain index values, the time domain index values ​​and a first part of the non-zero coefficients; and a third group, the third group being associated with a second part of the non-zero coefficients of the coefficient matrix, and wherein the UCI does not include one or more PMI values ​​from the PMI values, which is at least partially based on: information associated with one or more groups is omitted based at least partially on prioritizing the first group over the second group and the third group and at least partially on prioritizing the second group over the third group.

[0266] Aspect 30: A method according to Aspect 29, wherein the UCI is associated with multiple CSI reports including the CSI report, and wherein the information associated with one or more groups is omitted and is also based at least in part on the following operation: prioritizing the CSI reports from the multiple CSI reports in order of index values ​​of the multiple CSI reports.

[0267] Aspect 31: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 15.

[0268] Aspect 32: A device for wireless communication, the device comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1 to 15.

[0269] Aspect 33: An apparatus for wireless communication, the apparatus comprising: at least one component for performing the method according to one or more of aspects 1 to 15.

[0270] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 15.

[0271] Aspect 35: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 15.

[0272] Aspect 36: An apparatus for wireless communication at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 16 to 30.

[0273] Aspect 37: A device for wireless communication, the device comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 16 to 30.

[0274] Aspect 38: An apparatus for wireless communication, the apparatus comprising: at least one component for performing the method according to one or more of aspects 16 to 30.

[0275] Aspect 39: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 16 to 30.

[0276] Aspect 40: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 16 to 30.

[0277] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.

[0278] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware or hardware and software. "Software" should be broadly interpreted as meaning an instruction, an instruction set, a code, a code segment, a program code, a program, a subroutine, a software module, an application, a software application, a software package, a routine, a subroutine, an object, an executable program, a thread of execution, a procedure or a function, etc., whether it is described in software, firmware, middleware, microcode, hardware description language or other terms. As used herein, a "processor" is implemented with a combination of hardware or hardware and software. It will be obvious that the system or method described herein can be implemented in different forms of hardware or a combination of hardware and software. The actual dedicated control hardware or software code for implementing these systems or methods does not limit various aspects. Therefore, the operation and behavior of these systems or methods are described herein without reference to specific software codes, because those skilled in the art will understand that software and hardware can be designed to implement these systems or methods based at least in part on the description herein.

[0279] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0280] Although the specific combination of features is stated in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner not specifically described in the claims or not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (it includes a single member). As an example, "at least one of the following: a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (for example, a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other ordering of a, b and c).

[0281] Any element, action or instruction used herein should not be interpreted as key or necessary unless explicitly stated. In addition, as used herein, the articles "one" and "a kind of" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "said one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If you only want to refer to an item, the phrase "only one" or similar terms will be used. Moreover, as used herein, the terms "having", "containing", "comprising" and similar terms are intended to be open terms, which do not limit the elements they modify (for example, the element "comprising" A can also contain B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used continuously is intended to be inclusive and can be used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: at least one memory; and at least one processor, the at least one processor being communicatively coupled to the at least one memory, the at least one processor being configured to cause the UE to: receiving, from a network node, an indication of uplink resources associated with reporting channel state information (CSI); as well as Sending uplink control information (UCI) including the CSI report indicating a precoding matrix indicator (PMI) value to the network node and using the uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

2. The UE according to claim 1, wherein the group comprises: a first group, the first group being associated with a spatial domain beam index value and a strongest coefficient index (SCI); and a second group, the second group being associated with a frequency domain base index value, the time domain base index value, and a first portion of the non-zero coefficients of a coefficient matrix associated with the PMI value; and a third group associated with a second portion of the non-zero coefficients of the coefficient matrix, wherein the at least one group is the second group.

3. The UE of claim 2 , wherein the size of the uplink resources is insufficient for the CSI report, and wherein, to send the UCI, the at least one processor is configured to cause the UE to suppress including one or more PMI values ​​from the PMI values ​​based at least in part on including information in the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and further followed by information associated with the third group. 4 . The UE of claim 1 , wherein the first portion of the non-zero coefficients and the second portion of the non-zero coefficients are selected based at least in part on a priority ranking of the non-zero coefficients.

5. The UE of claim 4, wherein the priority ordering of the non-zero coefficients comprises: The non-zero coefficients are ordered based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation.

6. The UE of claim 5, wherein the ordering of the non-zero coefficients comprises: For each corresponding time domain index of the permuted version of the coefficient matrix, the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices are sorted.

7. The UE of claim 5, wherein the ordering of the non-zero coefficients comprises: For each corresponding frequency domain index of the permuted version of the coefficient matrix, the coefficients of the permuted version of the coefficient matrix for all time domain indices and spatial domain indices are sorted.

8. A UE according to claim 5, wherein the coefficient matrix is ​​associated with one or more coefficient sets, wherein each set from the one or more sets is associated with a corresponding frequency domain base index, and wherein each set includes columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients includes ordering the coefficients of the permuted version of the coefficient matrix in the following manner: ordering the coefficients of the one or more sets associated with each corresponding column of the rows of the spatial domain base indices and the columns of the time domain base indices in order of the columns.

9. The UE of claim 5, wherein the coefficient matrix is ​​associated with one or more coefficient sets, wherein each set from the one or more sets is associated with a frequency domain basis index, and wherein each set includes columns of time domain basis indexes associated with the coefficient matrix and rows of space domain basis indexes associated with the coefficient matrix, and Wherein the ordering of the non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix in the following manner: ordering the coefficients of the rows of the spatial domain base index and the columns of the time domain base index for each corresponding set in the one or more sets in the order of the one or more sets.

10. The UE of claim 5, wherein the coefficient matrix is ​​associated with one or more coefficient sets, wherein each set from the one or more sets is associated with a time domain basis index, and wherein each set includes columns of frequency domain basis indexes associated with the coefficient matrix and rows of space domain basis indexes associated with the coefficient matrix, and The ordering of the non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix in the following manner: ordering the coefficients of the rows of the spatial domain base index and the columns of the frequency domain base index for each corresponding set in the one or more sets in the order of the one or more sets.

11. The UE of claim 1 , wherein the size of the uplink resources is insufficient for the CSI report, and wherein, to send the UCI, the at least one processor is configured to cause the UE to suppress including one or more PMI values ​​from the PMI values ​​based at least in part on omitting information associated with at least one group from the groups based at least in part on prioritizing the groups.

12. The UE of claim 11, wherein the UCI is associated with a plurality of CSI reports including the CSI report, and wherein suppressing including the one or more PMI values ​​is based at least in part on prioritizing CSI reports from the plurality of CSI reports in order of index values ​​of the plurality of CSI reports.

13. A network node for wireless communication, the network node comprising: at least one memory; and at least one processor, the at least one processor being communicatively coupled to the at least one memory, the at least one processor being configured to cause the network node to: sending an indication of uplink resources intended for a user equipment (UE) in association with reporting channel state information (CSI); as well as receiving uplink control information (UCI) associated with the UE and the uplink resources, the UCI comprising a CSI report indicating a precoding matrix indicator (PMI) value, the UCI being associated with groups for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

14. The network node according to claim 13, wherein the group comprises: a first group, the first group being associated with a spatial domain beam index value and a strongest coefficient index value; and a second group, the second group being associated with a frequency domain index value, the time domain index value and a first portion of the non-zero coefficients; and a third group associated with a second portion of the non-zero coefficients of the coefficient matrix, wherein the at least one group is the second group.

15. The network node of claim 13, wherein the priority sorting of the non-zero coefficients comprises: The non-zero coefficients are sorted based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation, and wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix by sorting the frequency domain index and the spatial domain index for each corresponding time domain index of the permuted version of the coefficient matrix.

16. A method of wireless communication performed by a user equipment (UE), the method comprising: receiving, from a network node, an indication of uplink resources associated with reporting channel state information (CSI); as well as Sending uplink control information (UCI) including the CSI report indicating a precoding matrix indicator (PMI) value to the network node and using the uplink resources based at least in part on prioritizing groups of information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix of a codebook associated with the CSI report.

17. The method of claim 16, wherein the group comprises: a first group, the first group being associated with a spatial domain beam index value and a strongest coefficient index value; and a second group, the second group being associated with a frequency domain base index value, the time domain base index value, and a first portion of the non-zero coefficients of the coefficient matrix associated with the PMI value; and a third group associated with a second portion of the non-zero coefficients of the coefficient matrix, wherein the at least one group is the second group.

18. The method of claim 17, wherein the size of the uplink resources is insufficient for the CSI report, and wherein sending the UCI comprises: Including one or more PMI values ​​from the PMI values ​​is suppressed based at least in part on including information in the following order: information associated with the first group is first included in the CSI report, followed by information associated with the second group, and additionally followed by information associated with the third group.

19. The method of claim 16, wherein the first portion of non-zero coefficients and the second portion of non-zero coefficients are selected based at least in part on a priority ranking of the non-zero coefficients.

20. The method of claim 19, wherein the prioritization of the non-zero coefficients comprises: The non-zero coefficients are ordered based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation.

21. The method of claim 20, wherein the ordering of the non-zero coefficients comprises: For each corresponding time domain index of the permuted version of the coefficient matrix, the coefficients of the permuted version of the coefficient matrix for all frequency domain indices and spatial domain indices are sorted.

22. The method of claim 20, wherein the ordering of the non-zero coefficients comprises: For each corresponding frequency domain index of the permuted version of the coefficient matrix, the coefficients of the permuted versions of the coefficients of all time domain indices and spatial domain indices are sorted.

23. A method according to claim 20, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a corresponding frequency domain base index, and wherein each set includes columns of time domain base indices associated with the coefficient matrix and rows of spatial domain base indices associated with the coefficient matrix, and wherein the ordering of the non-zero coefficients includes ordering the coefficients of the permuted version of the coefficient matrix by ordering the rows of the spatial domain base indices and the columns of the time domain base indices associated with each corresponding column in the order of the columns.

24. The method of claim 20, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a frequency domain basis index, and wherein each set includes columns of time domain basis indexes associated with the coefficient matrix and rows of space domain basis indexes associated with the coefficient matrix, and Wherein the ordering of the non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix in the following manner: ordering the coefficients of the rows of the spatial domain base index and the columns of the time domain base index for each corresponding set in the one or more sets in the order of the one or more sets.

25. The method of claim 20, wherein the coefficient matrix is ​​associated with one or more sets of coefficients, wherein each set from the one or more sets is associated with a time domain basis index, and wherein each set includes columns of frequency domain basis indexes associated with the coefficient matrix and rows of space domain basis indexes associated with the coefficient matrix, and The ordering of the non-zero coefficients comprises ordering the coefficients of the permuted version of the coefficient matrix in the following manner: ordering the coefficients of the rows of the spatial domain base index and the columns of the frequency domain base index for each corresponding set in the one or more sets in the order of the one or more sets.

26. The method of claim 16, wherein the size of the uplink resources is insufficient for the CSI report, and wherein sending the UCI comprises: Including one or more PMI values ​​from the PMI values ​​is suppressed based at least in part on omitting information associated with at least one group from the groups based at least in part on prioritizing the groups.

27. The method of claim 26, wherein the UCI is associated with a plurality of CSI reports including the CSI report, and wherein suppressing including the one or more PMI values ​​is based at least in part on prioritizing CSI reports from the plurality of CSI reports in order of index values ​​of the plurality of CSI reports.

28. A method of wireless communication performed by a network node, the method comprising: sending an indication of uplink resources intended for a user equipment (UE) in association with reporting channel state information (CSI); as well as receiving uplink control information (UCI) associated with the UE and the uplink resources, the UCI comprising a CSI report indicating a precoding matrix indicator (PMI) value, the UCI being associated with groups for prioritizing information associated with the CSI report, at least one of the groups being associated with a time domain base index value and a non-zero coefficient of a coefficient matrix.

29. The method of claim 28, wherein the group comprises: a first group, the first group being associated with a spatial domain beam index value and a strongest coefficient index value; and a second group, the second group being associated with a frequency domain index value, the time domain index value and a first portion of the non-zero coefficients; and a third group associated with a second portion of the non-zero coefficients of the coefficient matrix, wherein the at least one group is the second group.

30. The method of claim 28, wherein the prioritization of the non-zero coefficients comprises: The non-zero coefficients are sorted based at least in part on a permuted version of the coefficient matrix, wherein the permuted version includes at least one of a time domain permutation and a frequency domain permutation, and wherein the sorting of the non-zero coefficients includes sorting the coefficients of the permuted version of the coefficient matrix by sorting the time domain index and the spatial domain index for each corresponding frequency domain index of the permuted version of the coefficient matrix.

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