Magnitude of report for codebook

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can receive a channel state information (CSI) reference signal (CSI-RS). The UE can transmit a CSI report based at least in part on a measurement of the CSI-RS and a codebook configured for rank three or higher, the CSI report including a magnitude applied to a subarray or polarization of the codebook. Numerous other aspects are described.

Description

Technical Field

[0001] All aspects of this disclosure relate to wireless communication in general, and more specifically to techniques, apparatus and methods for reporting amplitudes for a codebook. Background Technology

[0002] Wireless communication systems are widely deployed to provide a variety of services, including voice, text, messaging, video, data, and / or other services. Services may include unicast, multicast, and / or broadcast services, etc. Typical wireless communication systems employ multiple access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (e.g., time-domain resources, frequency-domain resources, spatial-domain resources, and / or device transmit power, etc.). Examples of such multiple access RATs include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems.

[0003] The aforementioned Multiple Access RATs have been adopted in various telecommunications standards to provide a common protocol enabling different wireless communication devices to communicate at the city, national, regional, or global level. An example telecommunications standard is New Radio (NR). NR (also known as 5G) is part of the continuous evolution of mobile broadband announced by the 3rd Generation Partnership Project (3GPP). NR (and other mobile broadband evolutions beyond NR) can be designed to better support the Internet of Things (IoT) and reduced-capacity device deployments, industrial connectivity, millimeter-wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, sidelinks and other device-to-device direct communication technologies (e.g., cellular vehicle-to-everything (CV2X) communications), massive MIMO, decomposed network architectures and network topology expansion, multi-subscriber implementations, high-precision positioning and / or radio frequency (RF) sensing, and more. As the demand for mobile broadband access continues to grow, further improvements to NR can be implemented, and other radio access technologies (such as 6G) can be introduced to further advance mobile broadband evolution. Summary of the Invention

[0004] Some aspects described herein relate to a method for wireless communication performed by a user equipment (UE). This method may include receiving a Channel State Information (CSI) Reference Signal (CSI-RS). The method may include transmitting a CSI report, at least in part based on measurements of the CSI-RS and configured for a codebook of rank 3 or higher, the CSI report including the amplitude of subarrays or polarizations applied to the codebook.

[0005] Some aspects described herein relate to a method for wireless communication performed by a UE. This method may include receiving CSI-RS. The method may include transmitting a CSI report, at least in part based on measurements of the CSI-RS and a codebook configured for rank-2, the CSI report including the amplitude of ports applied to the codebook.

[0006] Some aspects described herein relate to a method for wireless communication performed by a network entity. The method may include transmitting configuration for a codebook. The method may include transmitting CSI-RS. The method may include receiving a CSI report including the amplitude of the ports applied to the codebook.

[0007] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be individually or collectively configured to receive CSI-RS. The one or more processors may be individually or collectively configured to transmit CSI reports, at least in part based on CSI-RS measurements, for codebooks of rank 3 or higher, the CSI reports including the amplitude of subarrays or polarizations applied to the codebook.

[0008] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be individually or collectively configured to receive CSI-RS. The one or more processors may be individually or collectively configured to transmit CSI reports, at least in part, based on CSI-RS measurements and configured for a rank-2 codebook, the CSI reports including amplitudes of ports applied to the codebook.

[0009] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured individually or collectively to transmit configurations for a codebook. The one or more processors may be configured individually or collectively to transmit CSI-RS. The one or more processors may be configured to receive CSI reports including amplitudes of ports applied to the codebook.

[0010] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive CSI-RS. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit CSI reports, at least in part, based on CSI-RS measurements and configured for a codebook of rank 3 or higher, the CSI reports including the amplitude of subarrays or polarizations applied to the codebook.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive CSI-RS. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit CSI reports, at least in part, based on CSI-RS measurements and configured for a rank-2 codebook, the CSI reports including the amplitude of ports applied to the codebook.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a network entity. When executed by one or more processors of the network entity, the set of instructions enables the network entity to send configuration for a codebook. When executed by one or more processors of the network entity, the set of instructions enables the network entity to send CSI-RS. When executed by one or more processors of the network entity, the set of instructions enables the network entity to receive CSI reports including amplitudes of ports applied to the codebook.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving CSI-RS. The apparatus may include components for transmitting CSI reports, at least in part based on CSI-RS measurements, and configured for transmitting CSI reports using a codebook of rank 3 or higher, the CSI reports including amplitudes of subarrays or polarizations applied to the codebook.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving CSI-RS. The apparatus may include components for transmitting CSI reports, at least in part based on CSI-RS measurements, and configured for transmitting CSI reports using a rank-2 codebook, the CSI reports including amplitudes applied to ports of the codebook.

[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for transmitting configurations for a codebook. The apparatus may include components for transmitting CSI-RS. The apparatus may include components for receiving CSI reports including amplitudes applied to ports of the codebook.

[0016] Various aspects of this disclosure may be implemented or be implemented as described in whole by or embodied in the methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network nodes, network entities, wireless communication devices and / or processing systems as fully described in the specification and drawings and illustrated in the specification and drawings.

[0017] The preceding paragraphs of this section have broadly summarized some aspects of this disclosure. These and additional aspects and their associated advantages will be described below. The disclosed aspects can serve as the basis for modifying or designing other aspects for performing the same or similar purposes of this disclosure. Such equivalent aspects do not depart from the scope of the appended claims. The characteristics of the aspects disclosed herein, their organization and operation, and their associated advantages will be better understood from the following description taken in conjunction with the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings illustrate some aspects of this disclosure but do not limit its scope, as other aspects can be achieved by this description. Each drawing in the drawings is provided for illustrative and descriptive purposes and not as a definition of limitation of the claims. Identical or similar reference numerals in different drawings may identify identical or similar elements.

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

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

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

[0022] Figure 4 This is a diagram illustrating an example of the channel state information (CSI) reference signal beam management process according to this disclosure.

[0023] Figure 5 This is a diagram illustrating an example of a multiple-input multiple-output antenna according to the present disclosure.

[0024] Figure 6 This is a diagram illustrating an example of the magnitude of a codebook report according to this disclosure.

[0025] Figure 7 This is a diagram illustrating an example of the magnitude of a codebook report according to this disclosure.

[0026] Figure 8 This is a diagram illustrating an example of a Type I CSI report as described in this disclosure.

[0027] Figure 9 This is a diagram illustrating an example process performed, for example, at a UE or a device of a UE, according to this disclosure.

[0028] Figure 10 This is a diagram illustrating an example process performed, for example, at a UE or a device of a UE, according to this disclosure.

[0029] Figure 11 This is a diagram illustrating an example process performed, for example, at a network entity or a device of a network entity, according to the present disclosure.

[0030] Figure 12 This is a diagram of an example device for wireless communication according to the present disclosure.

[0031] Figure 13 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0032] Various aspects of this disclosure are described below with reference to the accompanying drawings. However, aspects of this disclosure may be embodied in many different forms and should not be construed as limited to any specific aspect illustrated or described with reference to the drawings or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, various combinations or numbers of aspects set forth herein may be used to implement an apparatus or a method of practice. Furthermore, the scope of this disclosure is intended to cover apparatuses having structures and / or functionalities other than those available for practicing the various aspects of this disclosure set forth herein, or methods of practice using those other structures and / or functionalities. Any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.

[0033] Various methods, operations, apparatuses, and techniques will now be presented with reference to them. These methods, operations, apparatuses, and techniques will be described in detail below and illustrated in the accompanying drawings by various boxes, modules, components, circuits, steps, processes, or algorithms (collectively, “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 system as a whole.

[0034] User equipment (UE) can receive and measure reference signals (such as CSI reference signals (CSI-RS)) on the channel and then provide a CSI report. Network entities can use the CSI report to schedule communications on the channel. The CSI report can use a codebook, which is a collection of pre-decoders. The CSI report can be a Type I codebook that includes spatial domain (SD) base components. SD components can be used to separate data streams. By transmitting multiple streams simultaneously, system capacity can be increased. A Type I codebook can involve a single SD base for each layer.

[0035] Type I CSI reports do not include reporting on the magnitude of polarization. Without reporting the magnitude of the polarization reported in Type I CSI reports, network entities may not have a complete and accurate understanding of the CSI, which could lead to communication degradation, increased latency, and wasted signaling resources.

[0036] Various aspects are involved in wireless communication as a whole. Some aspects are more specifically related to Type I CSI reporting, in which the UE can report polarization-specific, subarray-specific, or polarization-specific and subarray-specific amplitudes. In some aspects, for a UE configured to use a 2-port codebook with rank 2, the UE can report amplitudes for the antenna port. In some aspects, the UE can report amplitudes for codebooks designed for rank 3, 4, or higher.

[0037] Specific aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages. By reporting subarray-specific and / or polarization-specific amplitudes for codebooks of rank 2, 3, 4, or higher, the UE can help achieve better performance of subarray-segmented codebooks in communication. Improved communication reduces latency and saves signaling resources.

[0038] Multiple access radio access technology (RAT) has been adopted in various telecommunications standards to provide a common protocol that enables wireless communication devices to communicate at the city, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of the continuous mobile broadband evolution announced by the 3rd Generation Partnership Project (3GPP). 5G NR supports a variety of technologies and use cases, including enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), massive machine-type communication (mMTC), millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV).

[0039] With increasing demand for broadband access and the evolution of technologies supported by wireless communication networks, further technological improvements can be adopted in or implemented for 5G NR or future RATs (such as 6G) to further advance the evolution of wireless communication for a variety of existing and new use cases and applications. These technological improvements can be associated with new frequency band extensions, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, decomposed network architectures and network topology extensions, device aggregation, advanced duplex communication, sidelinks and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced-capacity (RedCap) UE functionality, industrial connectivity, multi-subscriber implementations, high-precision positioning, radio frequency (RF) sensing and / or artificial intelligence or machine learning (AI / ML), and more. Such technological improvements can support use cases such as wireless backhaul, wireless data centers, extended reality (XR) and metaverse applications, meta-services for supporting vehicle connectivity, holographic and mixed reality communications, autonomous and collaborative robots, vehicle platooning and collaborative manipulation, sensor networks, posture monitoring, brain-computer interfaces, digital twin applications, asset management, and general coverage applications using off-ground and / or aerial platforms, etc. The methods, operations, apparatuses, and techniques described herein can implement one or more of the foregoing technologies and / or support one or more of the foregoing use cases.

[0040] Figure 1 This is a diagram illustrating an example of a wireless communication network 100 according to the present disclosure. The wireless communication network 100 may be a 5G (or NR) network or a 6G network, or may include elements of a 5G (or NR) network or elements of a 6G network, etc. The wireless communication network 100 may include a plurality of network nodes 110, shown as network node (NN) 110a, network node 110b, network node 110c, and network node 110d. Network nodes 110 may support communication with a plurality of UEs 120 (shown as UE120a, UE 120b, UE 120c, UE 120d, and UE 120e).

[0041] Network nodes 110 and UEs 120 of wireless communication network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, carriers, and / or channels according to frequency or wavelength. For example, devices of wireless communication network 100 can communicate using one or more operating bands. In some aspects, multiple wireless networks 100 can be deployed in a given geographical area. Each wireless communication network 100 can support a specific radio access technology (RAT) (which may also be referred to as an air interface) and can operate on one or more carrier frequencies in one or more frequency ranges. Examples of RATs include 4G RAT, 5G / NR RAT, and / or 6G RAT, etc. In some examples, when multiple RATs are deployed in a given geographical area, each RAT in that geographical area can operate on a different frequency to avoid interference with each other.

[0042] Various operating bands have been defined by frequency range designations: FR1 (410 MHz to 7.125 GHz), FR2 (24.25 GHz to 52.6 GHz), FR3 (7.125 GHz to 24.25 GHz), FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Although a portion of FR1 is greater than 6 GHz, in some documents and articles, FR1 is often (interchangeably) referred to as the “sub-6 GHz” band. Similarly, in some documents and articles, FR2 is often (interchangeably) referred to as the “millimeter wave” band, but this is distinct from the Extremely High Frequency (EHF) band (30 GHz to 300 GHz) designated as the “millimeter wave” band by the International Telecommunication Union (ITU). The frequencies between FR1 and FR2 are generally referred to as the midband frequencies, including FR3. Frequency bands falling within FR3 can inherit FR1 or FR2 characteristics, thereby effectively extending the characteristics of FR1 or FR2 into the midband frequency range. Therefore, "below 6 GHz" (if used herein) can broadly refer to frequencies less than 6 GHz, within FR1, and / or included in the midband frequency range. Similarly, the term "millimeter wave" (if used herein) can broadly refer to frequencies included in the midband frequency range, within FR2, FR4, FR4-a, FR4-1, or FR5, and / or within the EHF band. Higher frequency bands can extend 5G NR operation, 6G operation, and / or other RATs above 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 can implement dynamic spectrum sharing (DSS), where multiple RATs (e.g., 4G / LTE and 5G / NR) are implemented within a single frequency band using dynamic bandwidth allocation (e.g., based on user demand). It is conceivable that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1 and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0043] Network node 110 may include one or more devices, components, or systems that enable communication between UE 120 and one or more devices, components, or systems of wireless communication network 100. Network node 110 may be, may include, or may also be referred to as an NR network node, 5G network node, 6G network node, node B, eNB, gNB, access point (AP), transmit / receive point (TRP), mobility element, core, network entity, network element, network equipment, and / or another type of device, component, or system included in a radio access network (RAN).

[0044] Network node 110 may be implemented as a single physical node (e.g., a single physical structure) or as two or more physical nodes (e.g., two or more different physical structures). For example, network node 110 may be a device or system implementing a portion of a radio protocol stack, a device or system implementing a complete radio protocol stack (such as a complete gNB protocol stack), or a collection of devices or systems collectively implementing a complete radio protocol stack. For example, and as shown, network node 110 may be an aggregated network node (with an aggregated architecture), meaning that network node 110 can implement a complete radio protocol stack physically and logically integrated within a single node (e.g., a single physical structure) in the wireless communication network 100. For example, aggregated network node 110 may consist of a single standalone base station or a single TRP that uses a complete radio protocol stack to implement or facilitate communication between UE 120 and the core network of wireless communication network 100.

[0045] Alternatively, and also as shown in the figure, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 can realize a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same or different geographic locations. For example, a decomposed network node may have a decomposed architecture. In some deployments, decomposed network node 110 may be used in integrated access and backhaul (IAB) networks, in open radio access networks (O-RAN) (such as network configurations compliant with the O-RAN Alliance), or in virtualized radio access networks (vRAN) (also referred to as cloud radio access networks (C-RAN)) to facilitate scaling by decomposing base station functionality into multiple units that can be deployed independently.

[0046] Network nodes 110 of the wireless communication network 100 may include one or more central units (CUs), one or more distributed units (DUs), and / or one or more radio units (RUs). CUs may host one or more higher-layer control functions, such as Radio Resource Control (RRC) functions, Packet Data Convergence Protocol (PDCP) functions, and / or Service Data Adaptation Protocol (SDAP) functions, etc. DUs may host one or more of the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and / or one or more higher physical (PHY) layers, at least in part, according to functional splits (such as functional splits defined by 3GPP). In some examples, DUs may also host one or more lower PHY layer functions, such as Fast Fourier Transform (FFT), Inverse FFT (iFFT), beamforming, Physical Random Access Channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120, etc. RUs may host RF processing functions or lower PHY layer functions, such as FFT, iFFT, beamforming, or PRACH extraction and filtering, etc., according to functional splits (such as lower-layer functional splits). In this type of architecture, each RU can be operated to handle over-the-air (OTA) communications with one or more UE 120s.

[0047] In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. Additionally or alternatively, network node 110 may include one or more near real-time (near RT) RAN Intelligent Controllers (RICs) and / or one or more non-real-time (non-RT) RICs. In some examples, CUs, DUs, and / or RUs may be implemented as virtual units, such as Virtual Central Units (VCUs), Virtual Distributed Units (VDUs), or Virtual Radio Units (VRUs), etc. Virtual units may be implemented as virtual network functions, such as those associated with cloud deployments.

[0048] Some network nodes 110 (e.g., base stations, RUs, or TRPs) can provide communication coverage for specific geographic areas. In 3GPP, the term "cell" can refer to the coverage area of ​​network node 110 or to network node 110 itself, depending on the context in which the term is used. Network node 110 can support one or more (e.g., three) cells. In some examples, network node 110 can provide communication coverage for macro cells, pico cells, femto cells, or another type of cell. A macro cell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UE 120 with a service subscription. A pico cell can cover a relatively small geographic area and can allow unrestricted access by UE 120 with a service subscription. A femto cell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access by UE 120 associated with that femto cell (e.g., UE 120 in a Closed Subscriber Group (CSG)). The network node 110 used for a macro cell may be referred to as a macro network node. Network node 110 used for a picocell may be referred to as a pico network node. Network node 110 used for a femtocell may be referred to as a femto network node or a home network node. In some examples, the cell may not necessarily be stationary. For example, the geographical area of ​​the cell may be mobile based on the location of the associated mobile network node 110 (e.g., a train, satellite base station, unmanned aerial vehicle, or non-terrestrial network (NTN) network node).

[0049] The wireless communication network 100 can be a heterogeneous network, comprising different types of network nodes 110, such as macro network nodes, piconet nodes, femtonet nodes, relay network nodes, aggregation network nodes, and / or decomposition network nodes, etc. Figure 1 In the example shown, network node 110a can be a macro network node for macro cell 130a, network node 110b can be a pico network node for pico cell 130b, and network node 110c can be a femto network node for femto cell 130c. Compared to other types of network nodes 110, the various types of network nodes 110 typically transmit at different power levels, serve different coverage areas, and / or have different effects on interference in the wireless communication network 100. For example, macro network nodes may have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0050] In some examples, network node 110 may be, may include, or operate as a RU, TRP, or base station communicating with one or more UEs 120 via a radio access link (which may be referred to as a "Uu" link). The radio access link may include a downlink and an uplink. A "downlink" (or "DL") refers to the communication direction from network node 110 to UE 120, and an "uplink" (or "UL") refers to the communication direction from UE 120 to network node 110. Downlink channels may include one or more control channels and one or more data channels. Downlink control channels may be used to transmit downlink control information (DCI) (e.g., scheduling information, reference signals, and / or configuration information) from network node 110 to UE 120. Downlink data channels may be used to transmit downlink data (e.g., user data associated with UE 120) from network node 110 to UE 120. Downlink control channels may include one or more physical downlink control channels (PDCCH), and downlink data channels may include one or more physical downlink shared channels (PDSCH). The uplink channel may similarly include one or more control channels and one or more data channels. The uplink control channel can be used to transmit uplink control information (UCI) from UE 120 to network node 110 (e.g., transmitting corresponding reference signals and / or feedback with one or more downlinks). The uplink data channel can be used to transmit uplink data (e.g., user data associated with UE 120) from UE 120 to network node 110. The uplink control channel may include one or more physical uplink control channels (PUCCH), and the uplink data channel may include one or more physical uplink shared channels (PUSCH). The downlink and uplink may each include a set of resources on which network node 110 and UE 120 can communicate.

[0051] Downlink and uplink resources may include time-domain resources (frames, subframes, time slots, and / or symbols), frequency-domain resources (bands, component carriers, subcarriers, resource blocks, and / or resource elements), and / or spatial-domain resources (specific transmission directions and / or beam parameters). Frequency-domain resources in some bands may be subdivided into bandwidth portions (BWPs). A BWP may be a contiguous block of frequency-domain resources allocated to one or more UEs 120 (e.g., a contiguous block of resource blocks). UEs 120 may be configured using both uplink and downlink BWPs (where the uplink and downlink BWPs may be the same BWP or different BWPs). BWPs may be dynamically configured and / or reconfigured (e.g., by sending DCI configuration to one or more UEs 120 via network node 110), meaning that BWPs may be adjusted in real-time (or near real-time) based on changing network conditions in the wireless communication network 100 and / or based on the specific requirements of one or more UEs 120. This allows for more efficient use of available frequency domain resources in the wireless communication network 100, as fewer frequency domain resources can be allocated to the BWP for UE 120 (which reduces the number of frequency domain resources that UE 120 needs to monitor), thus allowing more frequency domain resources to be distributed across multiple UE 120s. Therefore, the BWP can also assist in the implementation of such UE 120s by facilitating the configuration of smaller bandwidths for communications performed by lower-capacity UE 120s.

[0052] As described above, in some aspects, the wireless communication network 100 may be an IAB network, may include an IAB network, or may be included in an IAB network. In an IAB network, at least one network node 110 is an anchor network node communicating with a core network. The anchor network node 110 may also be referred to as an IAB donor (or "IAB donor"). The anchor network node 110 may be connected to the core network via a wired backhaul link. For example, the Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, the anchor network node 110 may be connected to one or more devices in the core network that provide core access and mobility management functions (AMF). An IAB network typically also includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply IAB nodes (or "IAB-nodes"). Each non-anchor network node 110 can directly communicate with the anchor network node 110 via a wireless backhaul link to access the core network, or can indirectly communicate with the anchor network node 110 via one or more other non-anchor network nodes 110 and an associated wireless backhaul link forming a backhaul path to the core network. Some anchor network nodes 110 or other non-anchor network nodes 110 can also directly communicate with one or more UEs 120 via a wireless access link carrying access services. In some examples, network resources used for wireless communication (such as time resources, frequency resources, and / or spatial resources) can be shared between the access link and the backhaul link.

[0053] In some examples, any network node 110 relaying communication may be referred to as a relay network node, a relay station, or simply a repeater. A repeater may receive communications from an upstream station (e.g., another network node 110 or UE 120) and transmit communications to a downstream station (e.g., UE 120 or another network node 110). In this case, the wireless communication network 100 may include or be referred to as a "multi-hop network." Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. Additionally or alternatively, UE 120 can be a relay station capable of relaying transmissions to or from other UE 120s, or can operate as such a relay station. UE 120 relaying communication can be referred to as a UE repeater or relay UE, etc.

[0054] UE 120 may be physically distributed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. UE 120 may be, may include, an access terminal, another terminal, a mobile station, or a subscriber unit, or may be included in an access terminal, another terminal, a mobile station, or a subscriber unit. UE 120 may be, or may include, a cellular phone (e.g., a smartphone), 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 smartwatch, smart clothing, smart glasses, a smart wristband and / or smart jewelry (such as a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device and / or a satellite radio), an extended reality (XR) device, a vehicle component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device), a UE function of a network node, and / or any other suitable device or function that can communicate via a wireless medium, or may be coupled to them.

[0055] UE 120 and / or network node 110 may include one or more chips, system-on-a-chip (SoC), chipsets, packages, or devices that individually or collectively constitute or include a processing system. The processing system includes processor (or “processing”) circuitry in the form of one or more processors, microprocessors, processing units (such as central processing units (CPUs), graphics processing units (GPUs), neural processing units (NPUs), and / or digital signal processors (DSPs)), processing blocks, application-specific integrated circuits (ASICs), programmable logic devices (PLDs) (such as field-programmable gate arrays (FPGAs)), or other discrete gate or transistor logic components or circuits (all of which are generally referred to herein individually as “processors” or collectively as “processors” or “processor circuitry”). One or more of these processors may be individually or collectively configured to perform the various functions or operations described herein. A processor group that can be configured or configured to perform a set of functions may include a first processor that can be configured or configured to perform a first function in the set, and a second processor that can be configured or configured to perform a second function in the set, or may include the entire processor group that is configured or configured to perform the set of functions.

[0056] The processing system may also include memory circuitry in the form of one or more memory devices, memory blocks, memory elements, or other discrete gate or transistor logic components or circuits, each of which may include tangible storage media such as random access memory (RAM) or read-only memory (ROM) or combinations thereof (all of which are generally referred to herein individually as "memory" or collectively as "memory" or "memory circuitry"). One or more of these memories may be coupled to one or more processors in the processor (e.g., operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) and may store processor-executable code (such as software) individually or collectively, which, when executed by one or more processors in the processor, may configure one or more processors in the processor to perform the various functions or operations described herein. Additionally or alternatively, in some examples, one or more processors in the processor may be pre-configured to perform the various functions or operations described herein without being configured by software. The processing system may also include or be coupled to one or more modems (such as Wi-Fi (e.g., IEEE compliant) modems or cellular (e.g., 3GPP 4G LTE, 5G, or 6G compliant) modems). In some embodiments, one or more processors of the processing system include or implement one or more modems among the modems. The processing system may also include, or be coupled to, multiple radio components (collectively, “radio components”), multiple RF chains, or multiple transceivers, each of which may in turn be coupled to one or more antennas among a plurality of antennas. In some embodiments, one or more processors of the processing system include or implement one or more of the radio components, RF chains, or transceivers. UE 120 may be included or may be contained in a housing that houses components associated with UE 120, including the processing system.

[0057] Some UEs 120 may be considered Machine Type Communication (MTC) UEs, Evolved or Enhanced Machine Type Communication (eMTC) UEs, Further Enhanced eMTC (feMTC) UEs or Enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be collectively referred to as "MTC UEs". MTC UEs may be, may include, or may be included in or coupled with the following: robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags. Some UEs 120 may be considered IoT devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. IoT UEs or NB-IoT devices may be, may include, or may be included in or coupled with the following: industrial machines, appliances, refrigerators, doorbell camera devices, home automation devices, and / or lighting fixtures, etc. Some UEs 120 may be considered customer premises equipment, which may include telecommunications equipment installed at a customer location (such as a home or office) to enable access to a service provider’s network (such as being included in or communicating with the wireless communication network 100).

[0058] Some UEs 120 can be categorized according to different categories associated with varying levels of complexity and / or capabilities. UEs 120 in the first category facilitate large-scale IoT within the wireless communication network 100 and offer lower complexity and / or lower cost compared to UEs 120 in the second category. UEs 120 in the second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-level UEs, advanced UEs, full-capability UEs, and / or premium UEs capable of ultra-reliable low-latency communication (URLLC), enhanced mobile broadband (eMBB), and / or precise positioning within the wireless communication network 100. UEs 120 in the third category may possess intermediate-level complexity and / or capabilities (e.g., capabilities between UEs 120 in the first category and UEs 120 in the second category). UEs 120 in the third category may be referred to as reduced-capacity UEs (“RedCap UEs”), intermediate-level UEs, NR lightweight UEs, and / or NR simplified UEs, etc. RedCap UEs bridge the gap in capabilities and complexity between NB-IoT devices and / or eMTC UEs and mission-critical IoT devices and / or premium UEs. RedCap UEs can include, for example, wearable devices, IoT devices, industrial sensors, and / or cameras associated with limited bandwidth, power capacity, and / or transmission range. RedCap UEs can support healthcare environments, building automation, power distribution, process automation, transportation and logistics, and / or smart city deployments, among others.

[0059] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly with each other using sidelink communication (e.g., without communicating through a network node 110 acting as an intermediary). As an example, UE 120a can send data, control information, or other signaling directly to UE 120e as sidelink communication. This contrasts with, for example, UE 120a first sending data to network node 110 in UL communication, and then that network node sending data to UE 120e in DL communication. In various examples, UE 120 can use peer-to-peer (P2P) communication protocols, device-to-device (D2D) communication protocols, vehicle-to-everything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and / or vehicle-to-pedestrian (V2P) protocols), and / or mesh network communication protocols to send and receive sidelink communication. In some deployments and configurations, network node 110 may schedule and / or allocate resources for sidelink communication between UEs 120 in the wireless communication network 100. In some other deployments and configurations, UE 120 (instead of network node 110) may perform or cooperate with or negotiate with one or more other UEs to perform scheduling operations, resource selection operations, and / or other operations for sidelink communication.

[0060] In various examples, in addition to half-duplex operation, some network nodes and UEs in the wireless communication network 100, including network node 110 and UE 120, can also be configured for full-duplex operation. Network node 110 or UE 120 operating in half-duplex mode can perform only one of transmission or reception during a specific time resource period (such as a specific time slot, symbol, or other time period). Half-duplex operation may involve time division duplex (TDD), where the DL transmission of network node 110 and the UL transmission of UE 120 do not occur in the same time resource (i.e., the transmissions do not overlap in time). In contrast, network node 110 or UE 120 operating in full-duplex mode can transmit and receive communications concurrently (e.g., within the same time resource). By operating in full-duplex mode, network node 110 and / or UE 120 can generally increase the capacity of the network and radio access links. In some examples, full-duplex operation may involve frequency division duplex (FDD), in which network node 110 performs DL transmission in a first frequency band or on a first component carrier, and UE 120 performs transmission in a second frequency band or on a second component carrier, the second frequency band or the second component carrier being different from the first frequency band or the first component carrier, respectively. In some examples, full-duplex operation may be enabled for UE 120 but not for network node 110. For example, UE 120 may simultaneously transmit UL to the first network node 110 and receive DL transmissions from the second network node 110 in the same time resources. In some other examples, full-duplex operation may be enabled for network node 110 but not for UE 120. For example, network node 110 may simultaneously transmit DL to the first UE 120 and receive UL transmissions from the second UE 120 in the same time resources. In some other examples, full-duplex operation may be enabled for both network node 110 and UE 120.

[0061] In some examples, UE 120 and network node 110 can perform MIMO communication. "MIMO" generally refers to the simultaneous transmission or reception of multiple signals (such as multiple layers or multiple data streams) using the same time and frequency resources. MIMO technology typically utilizes multipath propagation. MIMO can be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO can support simultaneous transmission to multiple receivers, which is called multi-user MIMO (MU-MIMO). Some radio access technologies (RATs) can employ advanced MIMO techniques such as mTRP operation (including redundant transmission or reception on multiple TRPs), reciprocity in the time or frequency domain, single-frequency network (SFN) transmission, or noncoherent joint transmission (NCJT).

[0062] In some respects, the UE (e.g., UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive CSI-RS. The communication manager 140 may be at least partially based on CSI-RS measurements and configured to send CSI reports for codebooks of rank 3 or higher, the CSI reports including the magnitude of subarrays or polarizations applied to the codebook.

[0063] In some respects, the communication manager 140 can receive CSI-RS. The communication manager 140 can transmit CSI reports, at least in part, based on CSI-RS measurements and configured for a rank-2 codebook, including the amplitude of the port applied to the codebook. Additionally or alternatively, the communication manager 140 can perform one or more other operations described herein.

[0064] In some respects, a network entity (e.g., network node 110) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send configurations for the codebook. The communication manager 150 may send CSI-RS; and receive CSI reports including the magnitude of the ports applied to the codebook. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0065] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.

[0066] Figure 2 This is a diagram illustrating an example network node 110 communicating with an example UE 120 in a wireless network according to the present disclosure.

[0067] like Figure 2As shown, network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a to 232t, where t≥1), a set of antennas 234 (shown as 234a to 234v, where v≥1), a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager 150, etc. In some configurations, one or a combination of antennas 234, modems 232, MIMO detectors 236, receive processors 238, transmit processors 214, and / or TX MIMO processors 216 may be included in the transceiver of network node 110. The transceiver may be under the control of and used by one or more processors (such as controller / processor 240), and in some respects, may perform aspects of the methods, procedures and / or operations described herein in conjunction with processor-readable code stored in memory 242. In some respects, network node 110 may include one or more interfaces, communication components and / or other components that facilitate communication with UE 120 or another network node.

[0068] The terms “processor,” “controller,” or “controller / processor” can refer to one or more controllers and / or one or more processors. For example, references to “a / the processor,” “a / the controller / processor,” etc. (in the singular) should be understood as referring to a combination of… Figure 2 The processor described refers to any one or more processors, such as a single processor or a combination of multiple different processors. The reference to "one or more processors" should be understood as a combination of references. Figure 2 Any one or more processors described herein. For example, one or more processors of network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.

[0069] In some aspects, a single processor can perform all operations described as being performed by one or more processors. In some aspects, a first set of one or more processors can perform a first operation described as being performed by that one or more processors, and a second set of one or more processors can perform a second operation described as being performed by that one or more processors. The processors in the first set and the processors in the second set can be the same set of processors or can be different sets of processors. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as combined... Figure 2 The memory described. For example, an operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.

[0070] For downlink communication from network node 110 to UE 120, transmitting processor 214 may receive data (“downlink data”) intended for use by UE 120 (or a set of UEs including UE 120) from data source 212 (such as a data pipeline or data queue). In some examples, transmitting processor 214 may select one or more modulation and decoding schemes (MCS) for UE 120 based on one or more channel quality indicators (CQIs) received from UE 120. Network node 110 may process the data (e.g., including encoding the data) according to the MCS selected for UE 120 for transmission to UE 120 on the downlink, thereby generating data symbols. Transmitting processor 214 may process system information (e.g., semi-static resource partitioning information (SRPI)) and / or control information (e.g., CQI requests, grants, and / or upper-layer signaling) and provide overhead symbols and / or control symbols. The transmitting processor 214 can generate reference symbols for reference signals (e.g., cell-specific reference signal (CRS), demodulation reference signal (DMRS), or CSI-RS) and / or synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)).

[0071] The TX MIMO processor 216 can perform space processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can output a set of symbol streams (e.g., TA set of output symbol streams is provided to modem 232. For example, each output symbol stream may be provided to a corresponding modulator component (shown as MOD) of modem 232. Each modem 232 may use the corresponding modulator component to process (e.g., modulate) the corresponding output symbol stream (e.g., for orthogonal frequency division multiplexing (OFDM)) to obtain an output sample stream. Each modem 232 may further use the corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream to obtain a time-domain downlink signal. Modems 232a to 232t may transmit the set of downlink signals (e.g., [missing information]) together via a set of corresponding antennas 234. T (One downlink signal).

[0072] Downlink signaling may include DCI communication, MAC control element (MAC CE) communication, RRC communication, downlink reference signaling, or another type of downlink communication. Downlink signaling may be transmitted on the PDCCH, PDSCH, and / or another downlink channel. Downlink signaling may carry one or more transport blocks (TBs) of data. A TB may be a data unit transmitted via the air interface in the wireless communication network 100. A data stream (e.g., from data source 212) may be encoded into multiple TBs for transmission via the air interface. The number of TBs used to carry data associated with a particular data stream may be associated with a TB size shared by multiple TBs. The TB size may be based on the radio channel conditions of the air interface, the MCS used to encode the data, downlink resources allocated for transmitting data, and / or other parameters, or otherwise associated with them. Generally, a larger TB size allows for a larger amount of data to be transmitted in a single transmission, reducing signaling overhead. However, a larger TB size may be more prone to transmission and / or reception errors than a smaller TB size, but such errors can be mitigated through more robust error correction techniques.

[0073] For uplink communication from UE 120 to network node 110, the uplink signal from UE 120 may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232, shown as DEMOD), detected where applicable by MIMO detector 236 (e.g., receive (Rx) MIMO processor), and / or further processed by receive processor 238 to obtain decoded data and / or control information. Receive processor 238 may provide the decoded data to data sink 239 (which may be a data pipeline, data queue, and / or another type of data sink) and provide the decoded control information to processors such as controller / processor 240.

[0074] Network node 110 may use scheduler 246 to schedule one or more UEs 120 for downlink or uplink communication. In some aspects, scheduler 246 may use DCI to dynamically schedule DL transmissions to and / or UL transmissions from UE 120. In some examples, scheduler 246 may allocate repetitive time-domain and / or frequency-domain resources that UE 120 may use for transmitting and / or receiving communication with RRC configuration (e.g., semi-static configuration), for example, to perform semi-persistent scheduling (SPS) or to configure configuration grant (CG) for UE 120.

[0075] One or more of the following may be included in the RF chain of network node 110: transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, and / or controller / processor 240. The RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs), and / or other devices for converting analog signals (such as those used for transmission or reception via an air interface) to digital signals (such as those used for processing by one or more processors of network node 110). In some aspects, the RF chain may be a transceiver of network node 110, or may be included in such a transceiver.

[0076] In some examples, network node 110 may use communication unit 244 to communicate with the core network and / or other network nodes. Communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, fiber optic, Common Public Radio Interface (CPRI), and / or wired or wireless backhaul, etc. Network node 110 may use communication unit 244 to send and / or receive data associated with UE 120, or to execute network control signaling, etc. Communication unit 244 may include transceivers and / or interfaces, such as network interfaces.

[0077] UE 120 may include a collection of antennas 252 (shown as antennas 252a to 252r, where r ≥ 1), a collection of modems 254 (shown as modems 254a to 254u, where u ≥ 1), a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140, etc. One or more components of UE 120 may be included in housing 284. In some aspects, one or a combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, or TX MIMO processor 266 may be included in a transceiver included in UE 120. The transceiver may be under the control of and used by one or more processors (such as controller / processor 280), and in some respects, may perform aspects of the methods, procedures, or operations described herein in conjunction with processor-readable code stored in memory 282. In some respects, UE 120 may include another interface, another communication component, and / or another component that facilitates communication with network node 110 and / or another UE 120.

[0078] For downlink communication from network node 110 to UE 120, the set of antennas 252 can receive downlink communication or signals from network node 110, and can receive the set of downlink signals (e.g., R Each received signal is provided to a set of modems 254. For example, each received signal may be provided to a corresponding demodulator component (shown as DEMOD) of modem 254. Each modem 254 may use the corresponding demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 may use the corresponding demodulator component to further demodulate or process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 may obtain the received symbols from the set of modems 254, may perform MIMO detection on the received symbols where applicable, and may provide the detected symbols. Receiver processor 258 may process (e.g., decode) the detected symbols, may provide the decoded data for UE 120 to data sink 260 (which may include data pipelines, data queues, and / or applications executed on UE 120), and may provide the decoded control information and system information to controller / processor 280.

[0079] For uplink communication from UE 120 to network node 110, the transmitting processor 264 may receive and process data (“uplink data”) from data source 262 (such as data pipelines, data queues, and / or applications running on UE 120) and control information from controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receiving processor 258 and / or controller / processor 280 may determine one or more parameters related to the transmission of uplink communication for received signals (such as those received from network node 110 or another UE). One or more parameters may include a Reference Signal Received Power (RSRP) parameter, a Received Signal Strength Indicator (RSSI) parameter, a Reference Signal Received Quality (RSRQ) parameter, a Channel Quality Indicator (CQI) parameter, or a Transmit Power Control (TPC) parameter, etc. The control information may include indications of RSRP, RSSI, RSRQ, CQI, TPC, and / or another parameter. Control information can facilitate parameter selection and / or scheduling for UE 120 by network node 110.

[0080] Transmit processor 264 can generate reference symbols for one or more reference signals, such as uplink DMRS, uplink sounding reference signal (SRS), and / or another type of reference signal. Symbols from transmit processor 264 can be pre-decoded by TX MIMO processor 266 where applicable, and further processed by a set of modems 254 (e.g., for DFT-s-OFDM or CP-OFDM). TX MIMO processor 266 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can output a set of symbol streams (e.g., ... U A set of output symbol streams is provided to modem 254. For example, each output symbol stream may be provided to a corresponding modulator component (shown as MOD) of modem 254. Each modem 254 may use the corresponding modulator component to process (e.g., modulate) the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 254 may further use the corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.

[0081] Modems 254a to 254u can transmit uplink signal sets (e.g., via a set of corresponding antennas 252) R One uplink signal or UUplink signals may include UCI communication, MAC CE communication, RRC communication, or another type of uplink communication. Uplink signals may be transmitted on PUSCH, PUCCH, and / or another type of uplink channel. Uplink signals may carry one or more TBs of data. Sidelink data and control transmission (i.e., transmission directly between two or more UEs 120) may typically use techniques similar to those described for uplink data and control transmission, and may use sidelink-specific channels such as the Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Control Channel (PSCCH), and / or Physical Sidelink Feedback Channel (PSFCH).

[0082] One or more antennas in the set of antennas 252 or the set of antennas 234 may include one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc., or may be included in one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, or with one or more transmitting or receiving components (such as...) Figure 2 An antenna module is a combination of one or more antenna elements coupled to one or more components. As used herein, "antenna" can mean one or more antennas, one or more antenna panels, one or more antenna groups, one or more collections of antenna elements, or one or more antenna arrays. "Antenna panel" can mean a group of antennas (such as antenna elements) arranged in an array or panel that can facilitate beamforming by manipulating the parameters of that group of antennas. "Antenna module" can mean a circuit that includes one or more antennas, and may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.

[0083] In some examples, each antenna element of antenna 234 or antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element, which can be used to independently transmit cross-polarized signals. Antenna elements may include patch antennas, dipole antennas, and / or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. The spacing between antenna elements can allow signals with a desired wavelength transmitted individually by the antenna elements to interact or interfere (e.g., to form a desired beam) in various directions. For example, given a desired wavelength or frequency range, the spacing may provide a quarter wavelength, half a wavelength, or another fraction of the wavelength between adjacent antenna elements to allow desired constructive and destructive interference modes of signals transmitted by individual antenna elements within that desired range.

[0084] The amplitude and / or phase of signals transmitted via antenna elements and / or sub-elements can be modulated and (e.g., by manipulating phase shifts, phase offsets, and / or amplitudes) shifted relative to each other to generate one or more beams; this is known as beamforming. The term "beam" can refer to the directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. "Beam" can also generally refer to the direction associated with such directional signal transmission, the set of directional resources associated with the signal transmission (e.g., angle of arrival, horizontal direction, and / or vertical direction), and / or a set of parameters indicating one or more aspects of the directional signal, the direction associated with the signal, and / or the set of directional resources associated with the signal. In some implementations, antenna elements can be individually selected or deselected for the directional transmission of a signal (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers and / or the phase of the signal to form one or more beams. The shape of the beam (such as amplitude, width, and / or the presence of sidelobes) and / or the direction of the beam (such as the angle of the beam relative to the surface of the antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and / or amplitudes of multiple signals relative to each other.

[0085] Different UEs 120 or network nodes 110 may include different numbers of antenna elements. For example, UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or different numbers of antenna elements. As another example, network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or different numbers of antenna elements. Generally speaking, a larger number of antenna elements provides increased control over the parameters used for beamforming compared to a smaller number of antenna elements, while a smaller number of antenna elements may be less complex to implement and can use less power. Multiple antenna elements can support multi-layer transmission, in which the same time and frequency resources are used to utilize spatial multiplexing to transmit a first layer of communication (which may include a first data stream) and a second layer of communication (which may include a second data stream).

[0086] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0087] Figure 3 This is an illustration of an example decomposed base station architecture 300 according to the present disclosure. One or more components of the example decomposed base station architecture 300 may be, may include, or may be included in one or more network nodes (such as one or more network nodes 110). The decomposed base station architecture 300 may include a CU 310, which may communicate directly with the core network 320 via a backhaul link, or may communicate indirectly with the core network 320 via one or more decomposed control units (such as non-RT RIC 350 and / or near-RT RIC 370 associated with a Service Management and Orchestration (SMO) framework 360 (e.g., via an E2 link)). The CU 310 may communicate with one or more DU 330s via a corresponding midhaul link (such as via an F1 interface). Each DU 330 may communicate with one or more RU 340s via a corresponding fronthaul link. Each RU 340 may communicate with one or more UE 120s via a corresponding RF access link. In some deployments, a UE 120 may be served simultaneously by multiple RU 340s.

[0088] Each component in the decomposed base station architecture 300 (including CU 310, DU 330, RU 340, near-RT RIC 370, non-RT RIC 350, and SMO frame 360) may include one or more interfaces or be coupled to one or more interfaces for receiving or transmitting signals, such as data or information, via wired or wireless transmission media.

[0089] In some respects, the CU 310 can be logically divided into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 310 can be deployed to communicate with one or more DU 330s for network control and signaling, as needed. 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 RU 340s. For example, the DU 330 may host various layers, such as the RLC layer, MAC layer, or one or more PHY layers (such as one or more high PHY layers or one or more low PHY layers). Each layer (which may also be referred to as a module) can be implemented using an interface for signaling to other layers (and modules) hosted by the DU 330, or for signaling to control functions hosted by the CU 310. Each RU 340 may implement lower-layer functionality. In some respects, the real-time and non-real-time aspects of communication with the control plane and user plane of the RU 340 can be controlled by the corresponding DU 330.

[0090] The SMO framework 360 supports RAN deployment and provisioning for both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 360 supports the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, the SMO framework 360 can interact with cloud computing platforms such as the Open Cloud (O-Cloud) platform 390 to perform network element lifecycle management (such as instantiating virtualized network elements) via cloud computing platform interfaces such as the O2 interface. Virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 350, and / or near-RT RIC 370. In some aspects, the SMO framework 360 can communicate with hardware aspects of the 4G RAN, 5G NR RAN, and / or 6G RAN (such as the Open eNB (O-eNB) 380) via the O1 interface. Additionally or alternatively, the SMO framework 360 can communicate directly with each of one or more RUs 340 via the corresponding O1 interface. In some deployments, this configuration enables each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.

[0091] The non-RT RIC 350 may include or implement logical functions that enable non-real-time control and optimization of RAN elements and resources, including artificial intelligence / machine learning (AI / ML) workflows for model training and updates, and / or policy-based guidance of applications and / or features in the near-RT RIC 370. The non-RT RIC 350 may be coupled to or communicate with the near-RT RIC 370, such as via an A1 interface. The near-RT RIC 370 may include or implement logical functions that enable near real-time control and optimization of RAN elements and resources via an interface, such as an E2 interface, through data collection and actions, connecting one or more CU 310s, one or more DU 330s, and / or O-eNBs to the near-RT RIC 370.

[0092] In some aspects, to generate AI / ML models to be deployed in the near-RT RIC 370, the non-RT RIC 350 may receive parameters or external enrichment information from an external server. This information can be utilized by the near-RT RIC 370 and can be received from non-network data sources or network functions at the SMO framework 360 or the non-RT RIC 350. In some examples, the non-RT RIC 350 or near-RT RIC 370 may modulate RAN behavior or performance. For example, the non-RT RIC 350 may monitor long-term trends and patterns in performance and may employ AI / ML models to perform corrective actions via the SMO framework 360 (such as reconfiguration via the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0093] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.

[0094] Figure 1 , Figure 2 or Figure 3 Network node 110, its controller / processor 240, UE 120, UE 120's controller / processor 280, CU 310, DU 330, RU 340, or any other component may implement one or more technologies associated with the reporting of the magnitude of the codebook or perform one or more operations associated with the reporting of the magnitude of the codebook, as described in more detail elsewhere herein. For example, network node 110's controller / processor 240, UE 120's controller / processor 280, CU 310, DU 330, RU 340, or any other component may implement one or more technologies associated with the reporting of the magnitude of the codebook, or perform one or more operations associated with the reporting of the magnitude of the codebook, as described in more detail elsewhere herein. Figure 2 Any other component, CU 310, DU 330, or RU 340 may execute or instruct, for example Figure 7 Process 700 Figure 8The operation of process 800 or other processes as described herein (alone or in combination with one or more other processors). Memory 242 may store data and program code for network node 110, CU 310, DU 330, or RU 340. Memory 282 may store data and program code for UE 120. In some examples, memory 242 or memory 282 may include a non-transitory computer-readable medium storing a set of instructions (e.g., code or program code) for wireless communication. Memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same or different types). Memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same or different types). For example, the set of instructions may be made to be executed by one or more processors of network node 110, UE 120, CU 310, DU 330, or RU 340 (e.g., directly, or after compilation, transformation, or interpretation). Figure 7 Process 700 Figure 8 The process 800 or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions, and / or interpret instructions, etc.

[0095] In some respects, the UE (e.g., UE 120) includes components for receiving CSI-RS; and / or components for measuring, at least in part, CSI-RS and configured to transmit CSI reports for codebooks of rank 3 or higher, the CSI reports including the magnitude of subarrays or polarizations applied to the codebook.

[0096] In some aspects, the UE includes components for receiving CSI-RS; and / or components for transmitting CSI reports based at least in part on CSI-RS measurements and configured for a rank-2 codebook, the CSI report including the amplitude of the port applied to the codebook. Components enabling the UE to perform the operations described herein may include one or more of, for example, a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0097] In some aspects, the network entity (e.g., network node 110) includes components for transmitting configurations for the codebook; components for transmitting CSI-RS; and / or components for receiving CSI reports including the amplitude of the ports applied to the codebook. In some aspects, components for the network entity to perform the operations described herein may include, for example, one or more of the following: a communication manager 150, a transmit processor 214, a TX MIMO processor 216, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0098] Figure 4 These are illustrations of examples 400, 410, and 420 illustrating the CSI-RS beam management process according to this disclosure. Figure 4 As shown, Examples 400, 410, and 420 include UE 120 communicating with network node 110 in a wireless network (e.g., wireless network 100). However, Figure 4 The device shown is provided as an example, and the wireless network can support communication and beam management between other devices, such as between UE 120 and network node 110 or Transmit / Receive Point (TRP), between mobile termination node and control node, between Integrated Access and Backhaul (IAB) child node and IAB parent node, and / or between scheduled node and scheduling node. In some aspects, UE 120 and network node 110 may be in a connected state (e.g., RRC connected state).

[0099] like Figure 4 As shown, Example 400 may include a network node 110 (e.g., one or more network node devices such as RU, DU, and / or CU, etc.) communicating with UE 120 to perform beam management using CSI-RS. Example 400 depicts a first beam management procedure (e.g., P1 CSI-RS beam management). The first beam management procedure may be referred to as a beam selection procedure, an initial beam acquisition procedure, a beam scanning procedure, a cell search procedure, and / or a beam search procedure. Figure 4 As shown in Example 400, CSI-RS can be configured to be transmitted from network node 110 to UE 120. CSI-RS can be configured to be periodic (e.g., using RRC signaling), semi-persistent (e.g., using Media Access Control (MAC) Control Element (MAC-CE) signaling), and / or non-periodic (e.g., using DCI).

[0100] The first beam management process may include network node 110 performing beam scanning on multiple transmit (Tx) beams. Network node 110 may use each transmit beam for beam management to transmit CSI-RS. To enable UE 120 to perform receive (Rx) beam scanning, the network node may use the transmit beams to transmit (e.g., with repetition) each CSI-RS multiple times within the same RS resource set, allowing UE 120 to scan the receive beam in several transmit instances. For example, if network node 110 has a set of N One transmit beam and UE 120 has a set M If there is a receiving beam, then it can be N CSI-RS is transmitted on each of the three transmit beams. M This allows UE 120 to receive CSI-RS for each transmitted beam. M Example 400. In other words, for each transmit beam of network node 110, UE 120 can perform a beam scan of the receive beam of UE 120. Therefore, the first beam management procedure enables UE 120 to measure CSI-RS on different transmit beams using different receive beams to support the selection of beam pairs for network node 110 transmit beam / UE 120 receive beam. UE 120 can report the measurements to network node 110 (in a CSI report) so that network node 110 can select one or more beam pairs for communication between network node 110 and UE 120. Although Example 400 has been described in conjunction with CSI-RS, the first beam management procedure can also use synchronization signal blocks (SSBs) to perform beam management in a similar manner as described above.

[0101] like Figure 4 As shown, Example 410 may include network node 110 and UE 120 communicating to perform beam management using CSI-RS. Example 410 depicts a second beam management procedure (e.g., P2 CSI-RS beam management). This second beam management procedure may be referred to as a beam refinement procedure, a network node beam refinement procedure, a TRP beam refinement procedure, and / or a transmit beam refinement procedure. Figure 4As shown in Example 410, CSI-RS can be configured to be transmitted from network node 110 to UE 120. The CSI-RS can be configured to be aperiodic (e.g., using DCI). A second beam management procedure may include network node 110 performing beam scanning on one or more transmit beams. The one or more transmit beams may be a subset of all transmit beams associated with network node 110 (e.g., determined at least in part based on measurements reported by UE 120 in conjunction with the first beam management procedure). Network node 110 may transmit CSI-RS using each of the one or more transmit beams used for beam management. UE 120 may measure each CSI-RS using a single (e.g., the same) receive beam (e.g., determined at least in part based on measurements performed in conjunction with the first beam management procedure). This second beam management procedure enables network node 110 to select the optimal transmit beam at least in part based on (e.g., measurements taken by UE 120 using a single receive beam) the measurements of CSI-RS reported by UE 120.

[0102] like Figure 4 As shown, Example 420 depicts a third beam management process (e.g., P3 CSI-RS beam management). This third beam management process may be referred to as a beam refinement process, a UE beam refinement process, and / or a receive beam refinement process. Figure 4 As shown in Example 420, one or more CSI-RS can be configured to be transmitted from network node 110 to UE 120. The CSI-RS can be configured to be non-periodic (e.g., using DCI). The third beam management procedure may include network node 110 transmitting one or more CSI-RS using a single transmit beam (e.g., determined at least in part based on measurements reported by UE 120 in conjunction with the first beam management procedure and / or the second beam management procedure). To enable UE 120 to perform receive beam scanning, the network node may transmit (e.g., with repetition) CSI-RS multiple times within the same RS resource set using the transmit beam, allowing UE 120 to scan one or more receive beams in several transmission instances. The one or more receive beams may be a subset of all receive beams associated with UE 120 (e.g., determined at least in part based on measurements performed in conjunction with the first beam management procedure and / or the second beam management procedure). This third beam management process enables network node 110 and / or UE 120 to select the optimal receive beam based at least in part on reported measurements received from UE 120 (e.g., reported measurements of the CSI-RS of the transmit beam using one or more receive beams).

[0103] As indicated above, Figure 4 This is provided as an example of a beam management process. Other examples of beam management processes can be found in relation to [the relevant documentation / information]. Figure 4 The examples described are different. For example, UE 120 and network node 110 may perform the third beam management procedure before performing the second beam management procedure, and / or UE 120 and network node 110 may perform a similar beam management procedure to select the UE transmit beam.

[0104] Figure 5 This is a diagram illustrating example 500 of a MIMO antenna according to this disclosure.

[0105] CSI reports may include codebooks, which are collections of pre-decoders. CSI report configurations may include codebook configurations, including codebook types such as Type I single-panel, Type I multi-panel, Type II single-panel, Type II port selection, or Type II enhanced port selection. Type I codebooks may include predefined matrices. Type II codebooks may include more detailed CSI reports for multiple users and may include beamgroups. Codebooks may include coefficients as quantized values ​​representing channel characteristics.

[0106] Codebook types can have dimensions of N 1 and N 2 of Ng Antenna configuration for each panel. Codebook type may have rank indicator (RI) restrictions or restrictions on the number of layers. CSI report configuration can be a report configuration type (e.g., periodic, semi-permanent, aperiodic). Full antenna configuration may include 32-port CSI-RS resources and... N 1 = 4 and N 2 = 4 codebook configuration.

[0107] Type I codebook enhancements can be used to support more than 32 (e.g., 64, 128) CSI-RS ports. For example, TDD may expect CSI for component carriers (CCs) without an uplink at 700 MHz. At 6 GHz, seven CCs may exist. Furthermore, Coherent Joint Transmission (CJT) CSI can define up to 128 ports. CJT can be used for PDSCH, where multiple TRPs coherently transmit PDSCH communication across different antennas of the TRPs.

[0108] Example 500 illustrates a 192-dipole active antenna element (AAU) for a MIMO with 64 transmit-receive units (TXRUs). Each dipole can have two polarizations, such as vertical and horizontal polarization. The 64 TXRUs can be deployed for time division duplexing (TDD) at 3.5 GHz. For higher FR1 (6425 MHz to 7125 MHz), a larger number of TXRUs can be used. The same antenna array size can support more elements.

[0109] The first dimension of AAU can be targeted N 1 Second dimension N 2 Configure the total number of ports. The total number of ports can be 32 ( N 1 =8, N 2 = 2), 48 ( N 1 = 12, N 2 = 2) or ( N 1 = 8, N 2 = 3), 64 ( N 1 = 16, N 2 = 2) or ( N 1 = 8, N 2 = 4), 72 ( N 1 =12, N 2 = 3), 96 ( N 1 = 16, N 2 = 3) or ( N 1 = 12, N 2 = 4), or 128 ( N 1 = 16, N 2 = 4).

[0110] Type I codebooks may include SD base components. Utilizing multi-user MIMO (MU-MIMO), two or more users in the same cell are coordinated and scheduled on the same time-frequency resources. That is, two or more independent data streams are simultaneously transmitted to different UEs, and SD is used to separate the corresponding streams. By transmitting multiple streams simultaneously, system capacity can be increased. Type I codebooks may involve a single SD base at each layer.

[0111] Type 1 codebook W1 can involve indexing via the same oversampled group. orthogonal SD basis within W1 (orthogonal in W1) (or having opposite cophases) : Orthogonal pre-decoders across layers of the same SD basis, where It can be Quadrature Phase Shift Keying (QPSK): 1 or This is similar to a 2-port codebook used for rank 2.

[0112] Another characteristic of Type I codebooks may include SD basis patterns. For rank 2, 3, and 4, the UE's bandwidth may have two orthogonal SD bases, where the second SD base can be derived from the first SD base ( The UE can be selected from up to four orthogonally adjacent SD bases (reported). For ranks 5 to 8, the UE's broadband can have a fixed SD base pattern. A set of orthogonally adjacent SD bases, such as 2×2 or 4×1 orthogonal neighbors. For rank 1 (or for rank 2, the first SD base), the bandwidth can have L =4 non-orthogonal adjacent SD bases, where for each subband, the bases are selected from... L =4 non-orthogonal neighbors.

[0113] Type 1 codebooks may include restrictions on more than one layer pair to the same common phase. The common "pattern". For example, for rank 4, 6, or 8, the first 4 layers (the first 2 layer pairs) could be For rank 2, Common It can be broadband or per subband.

[0114] Due to the transmit (Tx) angles (Azimuth of Arrival (AOD) / Zenith of Arrival (ZOD)) at the network entity (e.g., gNB) associated with the propagation path, the CSI-RS power measured by the UE on the two polarized ports may be quite unbalanced (by several dB). Cross-polarization power leakage may exist due to reflections (rays / clusters) along the propagation path. Polarization imbalance may also be due to the receive (Rx) angles (Azimuth of Arrival (AOA) / Zenith of Arrival (ZOA)) at the UE associated with the propagation path. Therefore, in some respects, in addition to the common phase in Type I codebooks… In addition, type I CSI can be enhanced by utilizing the co-amplitude between two polarizations (of a single SD base within the layer). Under the constraint of total downlink Tx power, polarizations with stronger channel gain / attenuation can be allocated more power. This allows for a simplified introduction of some type II CSI mechanisms into type I (the so-called "type-... "CSI may be applicable to 3GPP Release 19. The port-specific power of the Type II Predecoding Matrix Indicator (PMI) can be simplified to polarization-specific power (while the existing Type I has port common power)."

[0115] The algorithm can consider either single-valued decomposition (SVD) or eigenvalue decomposition (EVD), where each candidate SD basis is at least partially based on two polarizations (via a 2×2 EVD): Eigenvalues ​​can determine whether it is a single layer or two layers paired with the SD base. Related. The number of layers can be expressed as related to ("Local rank") is associated with, where Feature vectors can be quantized to obtain .

[0116] For the SD base In the case of two related layers (layer pairs), an amplitude / phase indicator This may be sufficient, since the eigenvectors are orthogonal and can be quantized with respect to the pre-decoder. Layer pairs can be .

[0117] In some respects, for Type I CSI reports (where a single SD base is selected for each layer), the UE can report an amplitude less than 1 for a weaker polarization of one or more layers, where each reported amplitude may apply to one polarization of a layer or to different polarizations of two layers. For example, the UE may receive one or more CSI-RS, use the measurements from the CSI-RS to generate a Type 1 CSI report, and send a Type I CSI report. A Type I CSI report may involve a single SD base for each layer and indicate the amplitude of a first polarization of the first layer and a second polarization of the second layer, where the first and second layers are paired and associated with the same SD base. The first polarization may be a weaker polarization of the first layer, the second polarization may be a weaker polarization of the second layer, and the first polarization may be different from the second polarization. By reporting the amplitude of the weaker polarization, network entities can have a more accurate understanding of the CSI and can use more accurate CSI to schedule communications (e.g., for pre-decoding of PDSCH).

[0118] Type I CSI reports may include additional details of amplitude reporting. In some aspects, amplitude may be polarization-specific. Amplitude may be differential over broadband subband. Amplitude may be broadband common or subband specific. In some aspects, Type I CSI reports may indicate phase, and this phase may be broadband common or subband specific. In some aspects, the layer (or layer pair) associated with the layer indicator (LI) may be used for subband reporting, while other layers may be used for broadband reporting. The LI may indicate the strongest layer or the strongest layer pair.

[0119] In some respects, the UE can report the selected per SD base ( The specific amplitude of polarization (and phase) ), and polarize a specific amplitude It can be associated with an orphan layer or layer pair. Type I CSI reports can indicate the strongest layer or strongest layer pair, where the amplitude of the strongest layer or strongest layer pair is subband specific. The UE can use the Strongest Coefficient Indicator (SCI) (e.g., 1 bit) to indicate which polarization of a layer (or which two polarizations of a layer pair) is associated with the reference unit coefficient "1" (values ​​in the amplitude alphabet: ).

[0120] Rank 3 or 4 Type I CSIs may have specific designs for 3GPP Release 15 CSIs (for >16 ports). CSIs can use sub-array beams with co-phase ( Multi-layer CSI can be generated using [a specific method / mechanism]. For example, to generate four layers, only one beam can be selected. This can be achieved by using inter-array co-phase [a specific method / mechanism]. ) and interpolar cophase ( To maintain orthogonality. Codebooks used for rank 3 or 4 can be represented as... .

[0121] For ≥16 ports: , It can be of length Oversampled 2D Discrete Fourier Transform (DFT) beams, where , . m The calculations and reports can be broadband (e.g., 2 bits). n The calculations and reports can be sub-bands (e.g., 1 bit per sub-band).

[0122] Type I CSI reports do not include reporting on polarization or subarray amplitudes. Without reporting the amplitudes in a Type I CSI report, network entities may not have a complete and accurate understanding of the CSI, potentially leading to communication degradation. Communication degradation can result in increased latency and wasted signaling resources.

[0123] In some scenarios, for a UE configured to use a 2-port codebook with rank 2, the UE can report the amplitude for the antenna port. The reported amplitude for the configured codebook (e.g., A ) can be applied as The reported magnitudes are shown in orthogonal positions within the matrix, and in common phase. It can be 1 or j This structure can be nested to construct more layers. In some respects, amplitude can be reported for the codebook, which is represented as... or The UE can report one of two candidate codebooks. In some aspects, the UE can report an additional bit to indicate which of the two candidate codebooks is used as the 2-port codebook with rank 2. In some aspects, subarray-specific amplitudes can be configured in the codebook. Subarray-specific can mean that the amplitude is specific to a particular subarray or set of subarrays. In some aspects, polarization-specific amplitudes can be configured. Polarization-specific can mean that the amplitude is specific to a particular polarization among two polarizations. In some aspects, both subarray-specific and polarization-specific amplitudes can be configured. That is, the amplitude can be a specific subarray within a specific polarization. By reporting the amplitudes (subarray-specific and / or polarization-specific) applied to one of the two codebooks, the UE can help achieve better performance of subarray-segmented codebooks in communication. Improved communication reduces latency and saves signaling resources. Multiple amplitudes can be configured.

[0124] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.

[0125] Figure 6 This is an illustration of example 600 of the magnitude of the codebook report according to this disclosure.

[0126] Some CSIs involve ranks higher than 2, such as rank 3 or 4. Depending on the various aspects described herein, the UE can report amplitudes for codebooks designed for rank 3 or 4. In some aspects, polarization-specific amplitudes can be reported for a configured codebook (or polarization-specific amplitudes can be applied to a configured codebook), where segment cophase: And polarization co-phase and co-amplitude: The UE can report an additional bit (e.g., 1 bit) to indicate which candidate codebook (e.g., 2 codebooks) can be used for a type I codebook with rank 3 and 4.

[0127] Table 602 shows the application to rank 4 ( l The polarization-specific amplitudes of the codebook (=0, 1, 2, 3) are shown in Table 602. Table 602 shows that the codebook can be divided into subarrays, such as subarrays 604, 606, 608, and 610. Subarrays 604 and 606 can be part of a first polarization, and subarrays 608 and 610 can be part of a second polarization. Table 612 shows examples of how polarization-specific amplitudes can be applied to a codebook with another configuration. Amplitude values ​​can be configured for wideband, by subband, or by differential (the difference between a subband and the wideband).

[0128] In some respects, the amplitude of a subarray can be reported for a configured codebook (or the amplitude of a subarray can be applied to a configured codebook), where segment co-phase and co-amplitude are: And polarized common phase: The UE can report an additional bit (e.g., 1 bit) to indicate which candidate codebook among the candidate codebooks can be used for a type I codebook with rank 3 and 4.

[0129] Table 622 shows examples of how subarray-specific amplitudes can be applied to a configured codebook. Table 632 shows examples of how subarray-specific amplitudes can be applied to another configured codebook. Some degree of orthogonality may exist in how amplitudes are applied to the codebook. Amplitude values ​​can be configured for wideband, per-subband, or differentially.

[0130] As indicated above, Figure 6 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 6 The examples described are different.

[0131] Figure 7 This is an example 700 illustrating the magnitude of a codebook report according to this disclosure.

[0132] In some respects, subarray-specific and polarization-specific amplitudes can be reported for a configured codebook (or subarray-specific and polarization-specific amplitudes can be applied to a configured codebook), where segment cophase and coamplitude are also considered. or Furthermore, polarization co-phase and co-amplitude The UE can report additional bits (e.g., 2 bits) to indicate which candidate codebooks (e.g., 4 codebooks) are used for a type I codebook with rank 3 or 4.

[0133] Table 702 shows how subarray-specific and polarization-specific amplitudes can be ( A and B Table 712 shows a first example of how subarray-specific and polarization-specific amplitudes can be applied to a configured codebook. Table 722 shows a third example of how subarray-specific and polarization-specific amplitudes can be applied to a configured codebook. Table 732 shows a fourth example of how subarray-specific and polarization-specific amplitudes can be applied to a configured codebook. Amplitude values ​​can be configured for wideband, per-subband, or differential.

[0134] By reporting subarray-specific and / or polarization-specific amplitudes for codebooks of rank 3, 4, or higher, the UE can help achieve better performance in subarray-segmented codebooks. Improved communication reduces latency and saves signaling resources.

[0135] As indicated above, Figure 7 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 7 The examples described are different.

[0136] Figure 8 This is a diagram illustrating example 800 associated with a Type I CSI report according to this disclosure. (See diagram for example.) Figure 8 As shown, network entity 810 (e.g., network node 110) and UE 820 (e.g., UE 120) can communicate with each other.

[0137] As shown by reference numeral 825 in the attached figure, network entity 810 can send configuration for a codebook, which may have a rank of 2, 3, 4, or higher. As shown by reference numeral 830 in the attached figure, network entity 810 can send CSI-RS. UE 820 can receive and measure CSI-RS.

[0138] As shown by reference numeral 835 in the attached figure, UE 820 can generate a CSI report based at least in part on CSI-RS measurements. The CSI report can indicate the magnitude reflecting the CSI-RS measurements (e.g., magnitude 836). The magnitude can be reported and applied to a configured codebook (e.g., codebook 838). The magnitude can be applied to the port, subarray, and / or polarization of the codebook. Depending on the configured codebook, the magnitude can be polarization-specific, subarray-specific, or both.

[0139] As shown by reference numeral 840 in the attached figure, UE 820 can send a CSI report. The CSI report can indicate an amplitude, which can be polarization-specific, subarray-specific, or both. Network entity 810 can apply the amplitude to a configured codebook and use the CSI report with the reported amplitude for scheduling and configuration purposes.

[0140] As indicated above, Figure 8 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 8 The examples described are different.

[0141] Figure 9 This is a diagram illustrating an example process 900 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 900 is an example in which a device or UE (e.g., UE 120, UE 820) performs operations associated with reporting magnitudes for codebooks of rank 3 or higher.

[0142] like Figure 9 As shown, in some aspects, process 900 may include receiving CSI-RS (block 910). For example, the UE (e.g., using...) Figure 12 The receiving component 1202 and / or communication manager 1206 depicted herein can receive CSI-RS, as described above.

[0143] like Figure 9Further shown, in some aspects, process 900 may include at least in part based on CSI-RS measurements and a CSI report configured for a codebook of rank 3 or higher, the CSI report including the magnitude of the subarray or polarization applied to the codebook (box 920). For example, the UE (e.g., using...) Figure 12 The transmitting component 1204 and / or communication manager 1206 described herein can be based at least in part on CSI-RS measurements and configured to transmit CSI reports for codebooks of rank 3 or higher, the CSI reports including the magnitude of subarrays or polarizations applied to the codebook, as described above.

[0144] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0145] In the first respect, the amplitude is specific to the subarray.

[0146] In the second aspect, either alone or in combination with the first aspect, the amplitude is polarization-specific.

[0147] In the third aspect, either alone or in combination with one or more of the first and second aspects, the amplitude is polarization-specific and subarray-specific.

[0148] In the fourth aspect, the magnitude is included in the CSI report for broadband, either alone or in combination with one or more of the first to third aspects.

[0149] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the magnitude is reported for a specific sub-band.

[0150] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the magnitude reported for a particular subband is reported as the difference relative to the broadband.

[0151] although Figure 9 An example box of process 900 is shown, but in some respects, process 900 may include... Figure 9 The boxes depicted may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in the process 900 may be executed in parallel.

[0152] Figure 10 This is a diagram illustrating an example process 1000 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1000 is an example in which a device or UE (e.g., UE 120, UE 820) performs operations associated with reporting the magnitude of a codebook for rank 2.

[0153] like Figure 10 As shown, in some aspects, process 1000 may include receiving CSI-RS (block 1010). For example, the UE (e.g., using...) Figure 12 The receiving component 1202 and / or communication manager 1206 depicted herein can receive CSI-RS, as described above.

[0154] like Figure 10 Further shown, in some aspects, process 1000 may include sending a CSI report, at least in part, based on CSI-RS measurements and a codebook configured for rank-2, the CSI report including the magnitude of the port applied to the codebook (box 1020). For example, the UE (e.g., using...) Figure 12 The transmitting component 1204 and / or communication manager 1206 described herein can transmit CSI reports based at least in part on CSI-RS measurements and configured for a rank-two codebook, the CSI reports including the amplitude of the ports applied to the codebook, as described above.

[0155] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0156] In the first aspect, amplitude is included in the CSI report used for broadband.

[0157] In the second aspect, either alone or in combination with the first aspect, the magnitude is reported for a specific sub-band.

[0158] In the third aspect, either alone or in combination with one or more of the first and second aspects, the magnitude reported for a particular subband is reported as a difference relative to the broadband.

[0159] although Figure 10 An example box of process 1000 is shown, but in some respects, process 1000 may include... Figure 10 The boxes depicted may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in the process 1000 may be executed in parallel.

[0160] Figure 11 This is a diagram illustrating an example process 1100 performed, for example, at a network entity or a device of a network entity, according to the present disclosure. Example process 1100 is an example in which a device or network entity (e.g., network node 110, network entity 810) performs operations associated with reporting the magnitude of a codebook.

[0161] like Figure 11As shown, in some aspects, process 1100 may include sending configuration for the codebook (box 1110). For example, network entities (e.g., using...) Figure 13 The sending component 1304 and / or communication manager 1306 described herein can send configurations for the codebook, as described above.

[0162] like Figure 11 As further shown, in some aspects, process 1100 may include sending CSI-RS (box 1120). For example, network entities (e.g., using...) Figure 13 The transmitting component 1304 and / or the communication manager 1306 described herein can transmit CSI-RS as described above.

[0163] like Figure 11 As further shown, in some aspects, process 1100 may include receiving a CSI report (box 1130) including the magnitude of the port applied to the codebook. For example, a network entity (e.g., using...) Figure 13 The receiving component 1302 and / or communication manager 1306 described herein can receive CSI reports including the amplitude of the port applied to the codebook, as described above.

[0164] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0165] In the first respect, the codebook is used for rank 2.

[0166] In the second aspect, either alone or in combination with the first aspect, the codebook is used for rank 3 or higher.

[0167] In the third aspect, amplitude is applied to subarrays or polarizations of the codebook, either alone or in combination with one or more of the first and second aspects.

[0168] In the fourth aspect, the amplitude is polarized specifically, either alone or in combination with one or more of the first to third aspects.

[0169] In the fifth aspect, the amplitude is specific to the subarray, either alone or in combination with one or more of the first to fourth aspects.

[0170] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the amplitude is polarization-specific and subarray-specific.

[0171] In the seventh aspect, the magnitude is included in the CSI report for broadband, either alone or in combination with one or more of the first to sixth aspects.

[0172] In the eighth aspect, the magnitude is reported for a specific sub-band, either alone or in combination with one or more of the first to seventh aspects.

[0173] although Figure 11 An example box of process 1100 is shown, but in some respects, process 1100 may include... Figure 11 The boxes depicted may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in process 1100 may be executed in parallel.

[0174] Figure 12 This is a diagram of an example device 1200 for wireless communication according to the present disclosure. Device 1200 may be a UE, or a UE may include device 1200. In some aspects, device 1200 includes a receiving component 1202, a transmitting component 1204, and / or a communication manager 1206 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1206 is combined with... Figure 1 The described communication manager 140. As shown, device 1200 can use receiving component 1202 and transmitting component 1204 to communicate with another device 1208 (such as UE or network node (such as CU, DU, RU or base station)).

[0175] In some respects, device 1200 can be configured to perform the functions described herein. Figures 1 to 8 One or more operations described herein. Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Figure 9 The process 900 Figure 10 The process 1000 or a combination thereof. In some respects, Figure 12 The illustrated device 1200 and / or one or more components may include a combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 12 One or more components shown can be combined Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0176] Receiver 1202 may receive communications from device 1208, such as reference signals, control information, data communications, or combinations thereof. Receiver 1202 may provide the received communications to one or more other components of device 1200. In some aspects, receiver 1202 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 the one or more other components of device 1200. In some aspects, receiver 1202 may include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0177] Transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1208. In some aspects, one or more other components of device 1200 may generate communications and provide the generated communications to transmitting component 1204 for transmission to device 1208. In some aspects, transmitting component 1204 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 device 1208. In some aspects, transmitting component 1204 may include combinations of... Figure 2 The described UE may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1204 may co-located with the receive component 1202 in one or more transceivers.

[0178] The communication manager 1206 may support the operation of the receiving component 1202 and / or the transmitting component 1204. For example, the communication manager 1206 may receive information associated with configuring the receiving component 1202 to receive communication and / or the transmitting component 1204 to transmit communication. Additionally or alternatively, the communication manager 1206 may generate control information and / or provide control information to the receiving component 1202 and / or the transmitting component 1204 to control the receiving and / or transmitting of communication.

[0179] In some aspects associated with rank 3 or higher, receiving component 1202 can receive CSI-RS. Transmitting component 1204 can be at least partially based on CSI-RS measurements and is configured to transmit CSI reports for codebooks of rank 3 or higher, the CSI reports including the amplitude of subarrays or polarizations applied to the codebook.

[0180] In some aspects related to rank 2, receiving component 1202 can receive CSI-RS. Transmitting component 1204 can transmit CSI reports based at least in part on CSI-RS measurements and a codebook configured for rank 2, the CSI reports including the amplitude of the ports applied to the codebook.

[0181] Figure 12 The number and arrangement of components shown are provided as an example. In reality, with... Figure 12 Compared to the components shown, there may be additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 12 The two or more components shown can be implemented within a single component, or Figure 12 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 12 The collection of (one or more) components shown is executable and described as being composed of Figure 12 Another set of components shown performs one or more functions.

[0182] Figure 13 This is a diagram of an example device 1300 for wireless communication according to the present disclosure. Device 1300 may be a network entity, or a network entity may include device 1300. In some aspects, device 1300 includes a receiving component 1302, a transmitting component 1304, and / or a communication manager 1306 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1306 is combined with... Figure 1 The described communication manager 150. As shown, device 1300 can use receiving component 1302 and transmitting component 1304 to communicate with another device 1308 (such as UE or network node (such as CU, DU, RU or base station)).

[0183] In some respects, device 1300 can be configured to perform the functions described herein. Figures 1 to 8 One or more operations described herein. Additionally or alternatively, the apparatus 1300 may be configured to perform one or more processes described herein, such as Figure 11 The process 1100. In some respects, Figure 13 The illustrated device 1300 and / or one or more components may include a combination Figure 2 One or more components of the described network entity. Additionally or alternatively, Figure 13 One or more components shown can be combined Figure 2Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0184] Receiver 1302 may receive communications from device 1308, such as reference signals, control information, data communications, or combinations thereof. Receiver 1302 may provide the received communications to one or more other components of device 1300. In some aspects, receiver 1302 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signals to the one or more other components of device 1300. In some aspects, receiver 1302 may include combinations of... Figure 2 The described network entity includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0185] Transmitting component 1304 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1308. In some aspects, one or more other components of device 1300 may generate communications and provide the generated communications to transmitting component 1304 for transmission to device 1308. In some aspects, transmitting component 1304 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 device 1308. In some aspects, transmitting component 1304 may include combinations of... Figure 2 The described network entity includes one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1304 may co-located with the receive component 1302 in one or more transceivers.

[0186] The communication manager 1306 may support the operation of the receiving component 1302 and / or the transmitting component 1304. For example, the communication manager 1306 may receive information associated with configuring the receiving component 1302 to receive communication and / or the transmitting component 1304 to transmit communication. Additionally or alternatively, the communication manager 1306 may generate control information and / or provide control information to the receiving component 1302 and / or the transmitting component 1304 to control the receiving and / or transmitting of communication.

[0187] Transmitting component 1304 can transmit configuration for the codebook. Transmitting component 1304 can transmit CSI-RS. Receiving component 1302 can receive CSI reports including the amplitude of the ports applied to the codebook.

[0188] Figure 13 The number and arrangement of components shown are provided as an example. In reality, with... Figure 13 Compared to the components shown, there may be additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 13 The two or more components shown can be implemented within a single component, or Figure 13 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 13 The collection of (one or more) components shown is executable and described as being composed of Figure 13 Another set of components shown performs one or more functions.

[0189] The following provides an overview of some aspects of this disclosure: Aspect 1: A method for wireless communication performed by a user equipment (UE), the method comprising: receiving a channel state information (CSI) reference signal (CSI-RS); and transmitting a CSI report based at least in part on measurements of the CSI-RS and a codebook configured for rank 3 or higher, the CSI report including amplitudes of subarrays or polarizations applied to the codebook.

[0190] Aspect 2: According to the method of aspect 1, the amplitude is specific to the subarray.

[0191] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the amplitude is polarization-specific.

[0192] Aspect 4: The method according to any one of Aspects 1 to 3, wherein the amplitude is polarization-specific and subarray-specific.

[0193] Aspect 5: The method according to any one of Aspects 1 to 4, wherein the amplitude is included in the CSI report for broadband.

[0194] Aspect 6: The method according to any one of Aspects 1 to 5, wherein the amplitude is reported for a specific sub-band.

[0195] Aspect 7: According to the method of aspect 6, wherein the magnitude reported for the particular subband is reported as a difference relative to the broadband.

[0196] Aspect 8: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a channel state information (CSI) reference signal (CSI-RS); and transmitting a CSI report based at least in part on measurements of the CSI-RS and a codebook configured for rank-2, the CSI report including amplitudes of ports applied to the codebook.

[0197] Aspect 9: According to the method of aspect 8, the amplitude is included in the CSI report used for broadband.

[0198] Aspect 10: The method according to any one of Aspects 8 to 9, wherein the amplitude is reported for a specific sub-band.

[0199] Aspect 11: According to the method of aspect 10, wherein the magnitude reported for the particular subband is reported as a difference relative to the broadband.

[0200] Aspect 12: A method for wireless communication performed by a network entity, the method comprising: transmitting configuration for a codebook; transmitting channel state information (CSI) reference signals (CSI-RS); and receiving a CSI report including amplitudes of ports applied to the codebook.

[0201] Aspect 13: The method according to aspect 12, wherein the codebook is used for rank two.

[0202] Aspect 14: The method according to any one of Aspects 12 to 13, wherein the codebook is used for rank 3 or higher.

[0203] Aspect 15: According to the method of aspect 14, wherein the amplitude is applied to a subarray or polarization of the codebook.

[0204] Aspect 16: The method according to aspect 15, wherein the amplitude is polarization-specific.

[0205] Aspect 17: The method according to aspect 15, wherein the amplitude is subarray specific.

[0206] Aspect 18: The method according to aspect 15, wherein the amplitude is polarization-specific and subarray-specific.

[0207] Aspect 19: The method according to any one of Aspects 12 to 18, wherein the amplitude is included in the CSI report for broadband.

[0208] Aspect 20: The method according to any one of aspects 12 to 19, wherein the amplitude is reported for a specific sub-band.

[0209] Aspect 21: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 20.

[0210] Aspect 22: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 20.

[0211] Aspect 23: 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 20.

[0212] Aspect 24: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by one or more processors to perform the methods described in one or more of aspects 1 to 20.

[0213] Aspect 25: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 20.

[0214] Aspect 26: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 20.

[0215] Aspect 27: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform the method according to one or more of aspects 1 to 20.

[0216] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or from various forms of practice.

[0217] As used herein, the term "component" is intended to be broadly interpreted as hardware or a combination of hardware and at least one of software or firmware. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable programs, threads of execution, procedures, or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, a "processor" is implemented in hardware or a combination of hardware and software. It will be apparent that the systems or methods described herein may be implemented in various forms of hardware or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems or methods is not limited in any way. Therefore, the operation and behavior of these systems or methods are described herein without reference to specific software code, as those skilled in the art will understand that the software and hardware can be designed to implement these systems or methods, at least in part, based on the description herein. Unless otherwise stated, a component configured to perform a function means that the component has the capability to perform that function, but it is not necessary for the component to actually perform that function.

[0218] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0219] As used in this article, the phrase “at least one of” in a list of items refers to any combination of those items, including 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, as well as any combination with multiple of the same element (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0220] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are used interchangeably with “one or more.” Similarly, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and are used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Moreover, as used herein, the terms “having” and similar terms are intended as open-ended terms that do not limit the elements they modify (e.g., “having” A may also have B). Additionally, the phrase “based on” is intended to mean “based on or otherwise related to” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be inclusive when used consecutively and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “either of the two” or “only one of them”). It should be understood that “one or more” is equivalent to “at least one”.

[0221] Although specific combinations of features are set forth in the claims or disclosed in the description, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically stated in the claims or disclosed in the description. The disclosure of various aspects includes each dependent claim in combination with each other claim in the claim set.

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: One or more memory units; and One or more processors, said one or more processors coupled to said one or more memories, said one or more processors being individually or collectively configured to cause the UE to: Receive Channel State Information (CSI) Reference Signal (CSI-RS); and The CSI report is sent at least in part based on the measurements of the CSI-RS and configured for codebooks of rank 3 or higher, the CSI report including the magnitude of the subarray or polarization applied to the codebook.

2. The apparatus of claim 1, wherein the amplitude is subarray specific.

3. The apparatus of claim 1, wherein the amplitude is polarization-specific.

4. The apparatus of claim 1, wherein the amplitude is polarization-specific and subarray-specific.

5. The apparatus of claim 1, wherein the amplitude is included in the CSI report for broadband.

6. The apparatus of claim 1, wherein the amplitude is reported for a specific sub-band.

7. The apparatus of claim 6, wherein the amplitude reported for the particular subband is reported as a difference relative to the broadband.

8. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: One or more memory units; and One or more processors, said one or more processors coupled to said one or more memories, said one or more processors being individually or collectively configured to cause the UE to: Receive Channel State Information (CSI) Reference Signal (CSI-RS); and CSI reports are sent at least in part based on measurements from the CSI-RS and a codebook configured for rank-two, the CSI reports including the amplitude of the ports applied to the codebook.

9. The apparatus of claim 8, wherein the amplitude is included in the CSI report for broadband.

10. The apparatus of claim 8, wherein the amplitude is reported for a specific sub-band.

11. The apparatus of claim 10, wherein the amplitude reported for the particular subband is reported as a difference relative to the broadband.

12. An apparatus for wireless communication at a network entity, the apparatus comprising: One or more memory units; and One or more processors, coupled to one or more memories, wherein the one or more processors are individually or collectively configured to enable the network entity to: Send the configuration for the codebook; Transmit Channel State Information (CSI) Reference Signal (CSI-RS); and Receive a CSI report including the amplitude of the ports applied to the codebook.

13. The apparatus of claim 12, wherein the codebook is used for rank two.

14. The apparatus of claim 12, wherein the codebook is for rank three or higher.

15. The apparatus of claim 14, wherein the amplitude is applied to a subarray or polarization of the codebook.

16. The apparatus of claim 15, wherein the amplitude is polarization-specific.

17. The apparatus of claim 15, wherein the amplitude is subarray-specific.

18. The apparatus of claim 15, wherein the amplitude is polarization-specific and subarray-specific.

19. The apparatus of claim 12, wherein the amplitude is included in the CSI report for broadband.

20. The apparatus of claim 12, wherein the amplitude is reported for a specific sub-band.

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