Delta-CSI for NR DL special slots
By computing and reporting separate CQIs for normal and special slots, the UE addresses the throughput degradation caused by limited DMRS symbols, enhancing network efficiency and MCS adaptation.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-04-02
AI Technical Summary
The limitation of a single demodulation reference signal (DMRS) symbol in downlink special slots leads to a capped signal-to-noise ratio and higher block error rate, affecting modulation and coding scheme (MCS) for all downlink slots, thereby degrading overall throughput in wireless communication systems.
User equipment (UE) computes and reports separate channel quality indicators (CQIs) for both normal and special slots, allowing the network to adapt MCS selection and improve throughput efficiency by distinguishing between different slot types.
Enhances network throughput by enabling better MCS selection and reducing feedback overhead, thereby improving communication efficiency.
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Figure US2025048835_02042026_PF_FP_ABST
Abstract
Description
Qualcomm Ref. No. 2407367WO 1DELTA-CSI FOR NR DL SPECIAL SLOTSCROSS REFERENCE TO RELATED APPLICATION(S)
[0001] This application claims the benefit of and priority to Indian Provisional Application Serial No. 202441073817, entitled “DELTA-CSI FOR NR DL SPECIAL SLOTS” and filed on September 30, 2024, which is expressly incorporated by reference herein in its entirety.TECHNICAL FIELD
[0002] The present disclosure relates generally to communication systems and, more particularly, to enhancements in a channel state information (CSI) report for downlink special slots.INTRODUCTION
[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
[0004] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of a continuous mobile broadband evolution promulgated by Third Generation Partnership Project (3 GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with Internet of Things (IoT)), and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency129025-2476WO01Qualcomm Ref. No. 2407367WO 2 communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard, and some aspects of future wireless communication technologies may be based on aspects of 5G NR. Some aspects of later wireless communication, such as 6G or others, may be based on aspects of 5G NR and / or 4G LTE. There exists a need for further improvements in 5G NR technology and additional wireless communication technology, including future wireless communication technologies, such as 6G, among other examples. These improvements may also be applicable to other multi-access technologies and the telecommunication standards that employ these technologies.BRIEF SUMMARY
[0005] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects. This summary neither identifies key or critical elements of all aspects nor delineates the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
[0006] In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided for wireless communication at a user equipment (UE). The apparatus may include at least one memory and at least one processor coupled to the at least one memory. Based at least in part on information stored in the at least one memory, the at least one processor may be configured to determine a first measurement of a quality metric (e.g., a channel quality indicator (CQI)) on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, where the first slot includes a first time domain resource allocation (TDRA) with a first demodulation reference signal (DMRS) symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and report, to a network entity, quality information associated with the first measurement and the second measurement.
[0007] In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided for wireless communication at a network entity. The apparatus may include at least one memory and at least one processor coupled to the at least one129025-2476WO01Qualcomm Ref. No. 2407367WO 3 memory. Based at least in part on information stored in the at least one memory, the at least one processor may be configured to transmit, for a UE, a resource configuration indicating a first slot and one or more second slots, wherein the first slot includes a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and receive, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on each second slot of the one or more second slots.
[0008] To the accomplishment of the foregoing and related ends, the one or more aspects may include the features hereinafter fully described and particularly pointed out in the claims. The following description and the drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed.BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. l is a diagram illustrating an example of a wireless communication system and an access network.
[0010] FIG. 2A is a diagram illustrating an example of a first frame, in accordance with various aspects of the present disclosure.
[0011] FIG. 2B is a diagram illustrating an example of downlink (DL) channels within a subframe, in accordance with various aspects of the present disclosure.
[0012] FIG. 2C is a diagram illustrating an example of a second frame, in accordance with various aspects of the present disclosure.
[0013] FIG. 2D is a diagram illustrating an example of uplink (UL) channels within a subframe, in accordance with various aspects of the present disclosure.
[0014] FIG. 3 is a diagram illustrating an example of a base station and user equipment (UE) in an access network.
[0015] FIG. 4 is a call flow diagram illustrating a method of wireless communication in accordance with various aspects of the present disclosure.
[0016] FIG. 5 is a flowchart illustrating methods of wireless communication at a UE in accordance with various aspects of the present disclosure.129025-2476WO01Qualcomm Ref. No. 2407367WO 4
[0017] FIG. 6 is a flowchart illustrating methods of wireless communication at a UE in accordance with various aspects of the present disclosure.
[0018] FIG. 7 is a flowchart illustrating methods of wireless communication at a network entity in accordance with various aspects of the present disclosure.
[0019] FIG. 8 is a diagram illustrating an example of a hardware implementation for an example apparatus and / or UE.
[0020] FIG. 9 is a diagram illustrating an example of a hardware implementation for an example network entity.DETAILED DESCRIPTION
[0021] In wireless communication, the performance of downlink (DL) time division duplexing (TDD) special slot demodulation may impact overall network throughput. For example, special slots with the physical downlink shared channel (PDSCH) duration of seven or fewer may include a single demodulation reference signal (DMRS) symbol, regardless of the DMRS setting (e.g., DMRS-additional-pos settings). This limitation results in an effective signal-to-noise ratio (SNR) at the last PDSCH symbol that is capped by the time-selectivity of the channel, leading to a significantly higher block error rate (BLER) compared to normal slots that include more than one DMRS symbols. When the network maintains a single outer-loop feedback mechanism for all downlink slots regardless of the PDSCH duration, the increased BLER in special slots may adversely affect the modulation and coding scheme (MCS) for all downlink slots and degrade the overall throughput. Although maintaining separate outer-loops (e.g., mechanisms that adjust the MCS selection by regulating the BLER based on the decoding performance) for normal and special slots could address this issue, it is a costly approach for the network (e.g., due to increased complexity and higher computational burden). An alternative and more cost-effective solution is for the UE to provide the network with the desired difference in the quality metrics, such as the channel quality indicators (CQIs), between normal and special slots. Example aspects presented herein provide methods and apparatus to enhance the channel reporting mechanisms, such as the channel state information (CSI) report, for wireless communication, including the computation and reporting of the quality metrics (e.g., CQIs) for downlink special slots.129025-2476WO01Qualcomm Ref. No. 2407367WO 5
[0022] Various aspects relate generally to wireless communication. Some aspects more specifically relate to enhancements in a C SI report for downlink special slots. In some examples, a user equipment (UE) may determine a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots. The first slot may include a first time domain resource allocation (TDRA) with a first demodulation reference signal (DMRS) symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols. Then, the UE may report quality information associated with the first measurement and the second measurement to a network entity. When reporting the quality information, in some examples, the UE may transmit a single CSI report that includes the quality information, and the quality information may include the first measurement and the second measurement. In some examples, the UE may transmit two CSI reports, such as the first CSI report and the second CSI report. The first CSI report may include the first measurement, and the second CSI report may include the second measurement. In some examples, the quality information in the CSI report may include a quality variation based on the first measurement and the second measurement. For example, the quality variation may include the absolute difference between the first measurement and the second measurement. For example, the quality variation may be based on the variation between the multiple subband measurements associated with the first measurement and the second measurement.
[0023] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, by enabling the UE to compute and report separate CQIs or the variations between the CQIs, the described techniques allow the network to better adapt MCS selection to different slot types, thereby avoiding throughput degradation caused by overly conservative scheduling, and improving the overall efficiency of wireless communication. In some examples, by reporting the variations between CQIs for different resources (e.g., reference TDRA and non-reference TDRA), the described techniques reduce feedback overhead, thereby improving the efficiency of CSI reporting.
[0024] The detailed description set forth below in connection with the drawings describes various configurations and does not represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific129025-2476WO01Qualcomm Ref. No. 2407367WO 6 details for the purpose of providing a thorough understanding of various concepts. However, these concepts may be practiced without these specific details. In some instances, well known structures and components are shown in block diagram form in order to avoid obscuring such concepts.
[0025] Several aspects of telecommunication systems are presented with reference to various apparatus and methods. These apparatus and methods are described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as “elements”). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0026] By way of example, an element, or any portion of an element, or any combination of elements may be implemented as a “processing system” that includes one or more processors. When multiple processors are implemented, the multiple processors may perform the functions individually or in combination. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on a chip (SoC), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionality described throughout this disclosure. One or more processors in the processing system may execute software. Software, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise, shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, or any combination thereof.
[0027] Accordingly, in one or more example aspects, implementations, and / or use cases, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media. Storage media may be any available media129025-2476WO01Qualcomm Ref. No. 2407367WO 7 that can be accessed by a computer. By way of example, such computer-readable media can include a random-access memory (RAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of the types of computer- readable media, or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer.
[0028] While aspects, implementations, and / or use cases are described in this application by illustration to some examples, additional or different aspects, implementations and / or use cases may come about in many different arrangements and scenarios. Aspects, implementations, and / or use cases described herein may be implemented across many differing platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, aspects, implementations, and / or use cases may come about via integrated chip implementations and other non-module-component based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, artificial intelligence (Al)-enabled devices, etc.). While some examples may or may not be specifically directed to use cases or applications, a wide assortment of applicability of described examples may occur. Aspects, implementations, and / or use cases may range a spectrum from chip-level or modular components to non-modular, non-chip- level implementations and further to aggregate, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more techniques herein. In some practical settings, devices incorporating described aspects and features may also include additional components and features for implementation and practice of claimed and described aspect. For example, transmission and reception of wireless signals necessarily includes a number of components for analog and digital purposes (e.g., hardware components including antenna, RF-chains, power amplifiers, modulators, buffer, processor(s), interleaver, adders / summers, etc.). Techniques described herein may be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, etc. of varying sizes, shapes, and constitution.
[0029] Deployment of communication systems, such as 5G NR systems, 6G systems, or other communication systems, may be arranged in multiple manners with various components or constituent parts. As an example, in a wireless communication network, a network node, a network entity, a mobility element of a network, a radio129025-2476WO01Qualcomm Ref. No. 2407367WO 8 access network (RAN) node, a core network node, a network element, or a network equipment, such as a base station (BS), or one or more units (or one or more components) performing base station functionality, may be implemented in an aggregated or disaggregated architecture. For example, a BS (such as a Node B (NB), evolved NB (eNB), NR BS, 5G NB, access point (AP), a transmission reception point (TRP), or a cell, etc.) may be implemented as an aggregated base station (also known as a standalone BS or a monolithic BS) or a disaggregated base station.
[0030] An aggregated base station may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node. A disaggregated base station may be configured to utilize a protocol stack that is physically or logically distributed among two or more units (such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed throughout one or multiple other RAN nodes. The DUs may be implemented to communicate with one or more RUs. Each of the CU, DU and RU can be implemented as virtual units, i.e., a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).
[0031] Base station operation or network design may consider aggregation characteristics of base station functionality. For example, disaggregated base stations may be utilized in an integrated access backhaul (IAB) network, an open radio access network (O- RAN (such as the network configuration sponsored by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Disaggregation may include distributing functionality across two or more units at various physical locations, as well as distributing functionality for at least one unit virtually, which can enable flexibility in network design. The various units of the disaggregated base station, or disaggregated RAN architecture, can be configured for wired or wireless communication with at least one other unit.
[0032] FIG. 1 is a diagram 100 illustrating an example of a wireless communications system and an access network. The illustrated wireless communications system includes a disaggregated base station architecture. The disaggregated base station architecture may include one or more CUs 110 that can communicate directly with a core network 120 via a backhaul link, or indirectly with the core network 120 through one or more disaggregated base station units (such as a Near-Real Time (Near-RT) RAN129025-2476WO01Qualcomm Ref. No. 2407367WO 9Intelligent Controller (RIC) 125 via an E2 link, or a Non-Real Time (Non-RT) RIC 115 associated with a Service Management and Orchestration (SMO) Framework 105, or both). A CU 110 may communicate with one or more DUs 130 via respective midhaul links, such as an Fl interface. The DUs 130 may communicate with one or more RUs 140 via respective fronthaul links. The RUs 140 may communicate with respective UEs 104 via one or more radio frequency (RF) access links. In some implementations, the UE 104 may be simultaneously served by multiple RUs 140.
[0033] Each of the units, i.e., the CUs 110, the DUs 130, the RUs 140, as well as the Near- RT RICs 125, the Non-RT RICs 115, and the SMO Framework 105, may include one or more interfaces or be coupled to one or more interfaces configured to receive or to transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or an associated processor or controller providing instructions to the communication interfaces of the units, can be configured to communicate with one or more of the other units via the transmission medium. For example, the units can include a wired interface configured to receive or to transmit signals over a wired transmission medium to one or more of the other units. Additionally, the units can include a wireless interface, which may include a receiver, a transmitter, or a transceiver (such as an RF transceiver), configured to receive or to transmit signals, or both, over a wireless transmission medium to one or more of the other units.
[0034] In some aspects, the CU 110 may host one or more higher layer control functions. Such control functions can include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), or the like. Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU 110. The CU 110 may be configured to handle user plane functionality (i.e., Central Unit - User Plane (CU-UP)), control plane functionality (i.e., Central Unit - Control Plane (CU-CP)), or a combination thereof. In some implementations, the CU 110 can be logically split into one or more CU-UP units and one or more CU-CP units. The CU-UP unit can communicate bidirectionally with the CU-CP unit via an interface, such as an El interface when implemented in an O-RAN configuration. The CU 110 can be implemented to communicate with the DU 130, as necessary, for network control and signaling.129025-2476WO01Qualcomm Ref. No. 2407367WO 10
[0035] The DU 130 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 140. In some aspects, the DU 130 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation, demodulation, or the like) depending, at least in part, on a functional split, such as those defined by 3 GPP. In some aspects, the DU 130 may further host one or more low PHY layers. Each layer (or module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 130, or with the control functions hosted by the CU 110.
[0036] Lower-layer functionality can be implemented by one or more RUs 140. In some deployments, an RU 140, controlled by a DU 130, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (such as performing fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like), or both, based at least in part on the functional split, such as a lower layer functional split. In such an architecture, the RU(s) 140 can be implemented to handle over the air (OTA) communication with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control and user plane communication with the RU(s) 140 can be controlled by the corresponding DU 130. In some scenarios, this configuration can enable the DU(s) 130 and the CU 110 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0037] The SMO Framework 105 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 105 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements that may be managed via an operations and maintenance interface (such as an 01 interface). For virtualized network elements, the SMO Framework 105 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 190) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an 02 interface). Such virtualized network elements can include, but are not limited to, CUs 110, DUs 130, RUs 140 and Near-RT RICs 125. In some implementations, the SMO Framework 105 can communicate with a hardware aspect of a 4G RAN, such as an open eNB (O-129025-2476WO01Qualcomm Ref. No. 2407367WO 11 eNB) 111, via an 01 interface. Additionally, in some implementations, the SMO Framework 105 can communicate directly with one or more RUs 140 via an 01 interface. The SMO Framework 105 also may include a Non-RT RIC 115 configured to support functionality of the SMO Framework 105.
[0038] The Non-RT RIC 115 may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, artificial intelligence (Al) / machine learning (ML) (AI / ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near- RT RIC 125. The Non-RT RIC 115 may be coupled to or communicate with (such as via an Al interface) the Near-RT RIC 125. The Near-RT RIC 125 may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (such as via an E2 interface) connecting one or more CUs 110, one or more DUs 130, or both, as well as an O-eNB, with the Near-RT RIC 125.
[0039] In some implementations, to generate AI / ML models to be deployed in the Near-RT RIC 125, the Non-RT RIC 115 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 125 and may be received at the SMO Framework 105 or the Non-RT RIC 115 from non-network data sources or from network functions. In some examples, the Non-RT RIC 115 or the Near-RT RIC 125 may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 115 may monitor long-term trends and patterns for performance and employ AI / ML models to perform corrective actions through the SMO Framework 105 (such as reconfiguration via 01) or via creation of RAN management policies (such as Al policies).
[0040] At least one of the CU 110, the DU 130, and the RU 140 may be referred to as a base station 102. Accordingly, a base station 102 may include one or more of the CU 110, the DU 130, and the RU 140 (each component indicated with dotted lines to signify that each component may or may not be included in the base station 102). The base station 102 provides an access point to the core network 120 for a UE 104. The base station 102 may include macrocells (high power cellular base station) and / or small cells (low power cellular base station). The small cells include femtocells, picocells, and microcells. A network that includes both small cell and macrocells may be known as a heterogeneous network. A heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs), which may provide service to a restricted group129025-2476WO01Qualcomm Ref. No. 2407367WO 12 known as a closed subscriber group (CSG). The communication links between the RUs 140 and the UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 104 to an RU 140 and / or downlink (DL) (also referred to as forward link) transmissions from an RU 140 to a UE 104. The communication links may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication links may be through one or more carriers. The base station 102 / UEs 104 may use spectrum up to X MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth per carrier allocated in a carrier aggregation of up to a total of Ex MHz (x component carriers) used for transmission in each direction. The carriers may or may not be adjacent to each other. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL than for UL). The component carriers may include a primary component carrier and one or more secondary component carriers. A primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell).
[0041] Certain UEs 104 may communicate with each other using device-to-device (D2D) communication link 158. The D2D communication link 158 may use the DL / UL wireless wide area network (WWAN) spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be through a variety of wireless D2D communications systems, such as for example, Bluetooth™ (Bluetooth is a trademark of the Bluetooth Special Interest Group (SIG)), Wi-Fi™ (Wi-Fi is a trademark of the Wi-Fi Alliance) based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.
[0042] The wireless communications system may further include a Wi-Fi AP 150 in communication with UEs 104 (also referred to as Wi-Fi stations (STAs)) via communication link 154, e.g., in a 5 GHz unlicensed frequency spectrum or the like. When communicating in an unlicensed frequency spectrum, the UEs 104 / AP 150 may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available.
[0043] The electromagnetic spectrum is often subdivided, based on frequency / wavelength, into various classes, bands, channels, etc. In 5GNR, two initial operating bands have129025-2476WO01Qualcomm Ref. No. 2407367WO 13 been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with regard to FR2, which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
[0044] The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. An operating band for these mid-band frequencies may have the frequency range designation FR3 (7.125 GHz - 24.25 GHz), for example. Frequency bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend features of FR1 and / or FR2 into mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation, or other wireless communication operation, beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR2-2 (52.6 GHz - 71 GHz), FR4 (71 GHz - 114.25 GHz), and FR5 (114.25 GHz - 300 GHz). Each of these higher frequency bands falls within the EHF band.
[0045] With the above aspects in mind, unless specifically stated otherwise, the term “sub-6 GHz” or the like if used herein may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, the term “millimeter wave” or the like if used herein may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR2-2, and / or FR5, or may be within the EHF band.
[0046] The base station 102 and the UE 104 may each include a plurality of antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate beamforming. The base station 102 may transmit a beamformed signal 182 to the UE 104 in one or more transmit directions. The UE 104 may receive the beamformed signal from the base station 102 in one or more receive directions. The UE 104 may also transmit a beamformed signal 184 to the base station 102 in one or more transmit directions. The base station 102 may receive the beamformed signal from the UE 104 in one or more receive directions. The base station 102 / UE 104 may perform beam training to determine the best receive and transmit directions for each of the base station 102 / UE 104. The transmit and receive directions for the base station 102 may or may not129025-2476WO01Qualcomm Ref. No. 2407367WO 14 be the same. The transmit and receive directions for the UE 104 may or may not be the same.
[0047] The base station 102 may include and / or be referred to as a gNB, Node B, eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP, network node, network entity, network equipment, or some other suitable terminology. The base station 102 can be implemented as an integrated access and backhaul (IAB) node, a relay node, a sidelink node, an aggregated (monolithic) base station with a baseband unit (BBU) (including a CU and a DU) and an RU, or as a disaggregated base station including one or more of a CU, a DU, and / or an RU. The set of base stations, which may include disaggregated base stations and / or aggregated base stations, may be referred to as next generation (NG) RAN (NG-RAN).
[0048] The core network 120 may include an Access and Mobility Management Function (AMF) 161, a Session Management Function (SMF) 162, a User Plane Function (UPF) 163, a Unified Data Management (UDM) 164, one or more location servers 168, and other functional entities. The AMF 161 is the control node that processes the signaling between the UEs 104 and the core network 120. The AMF 161 supports registration management, connection management, mobility management, and other functions. The SMF 162 supports session management and other functions. The UPF 163 supports packet routing, packet forwarding, and other functions. The UDM 164 supports the generation of authentication and key agreement (AKA) credentials, user identification handling, access authorization, and subscription management. The one or more location servers 168 are illustrated as including a Gateway Mobile Location Center (GMLC) 165 and a Location Management Function (LMF) 166. However, generally, the one or more location servers 168 may include one or more location / positioning servers, which may include one or more of the GMLC 165, the LMF 166, a position determination entity (PDE), a serving mobile location center (SMLC), a mobile positioning center (MPC), or the like. The GMLC 165 and the LMF 166 support UE location services. The GMLC 165 provides an interface for clients / applications (e.g., emergency services) for accessing UE positioning information. The LMF 166 receives measurements and assistance information from the NG-RAN and the UE 104 via the AMF 161 to compute the position of the UE 104. The NG-RAN may utilize one or more positioning methods in order to determine the position of the UE 104. Positioning the UE 104 may involve signal measurements,129025-2476WO01Qualcomm Ref. No. 2407367WO 15 a position estimate, and an optional velocity computation based on the measurements. The signal measurements may be made by the UE 104 and / or the base station 102 serving the UE 104. The signals measured may be based on one or more of a satellite positioning system (SPS) 170 (e.g., one or more of a Global Navigation Satellite System (GNSS), global position system (GPS), non-terrestrial network (NTN), or other satellite position / location system), LTE signals, wireless local area network (WLAN) signals, Bluetooth signals, a terrestrial beacon system (TBS), sensor-based information (e.g., barometric pressure sensor, motion sensor), NR enhanced cell ID (NRE-CID) methods, NR signals (e.g., multi -round trip time (Multi -RTT), DL angle- of-departure (DL-AoD), DL time difference of arrival (DL-TDOA), UL time difference of arrival (UL-TDOA), and UL angle-of-arrival (UL-AoA) positioning), and / or other systems / signals / sensors.
[0049] Examples of UEs 104 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a tablet, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, or any other similar functioning device. Some of the UEs 104 may be referred to as loT devices (e.g., parking meter, gas pump, toaster, vehicles, heart monitor, etc.). The UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. In some scenarios, the term UE may also apply to one or more companion devices such as in a device constellation arrangement. One or more of these devices may collectively access the network and / or individually access the network.
[0050] Referring again to FIG. 1, in certain aspects, the UE 104 may include a channel report component 198. The channel report component 198 may be configured to determine a first measurement of a quality metric on a first slot and a second measurement of the quality metric on one or more second slots, where the first slot includes a single DMRS symbol and each second slot of the one or more second slots includes multiple DMRS symbols; and report, to a network entity, quality information associated with129025-2476WO01Qualcomm Ref. No. 2407367WO 16 the first measurement and the second measurement. In certain aspects, the base station 102 may include a channel report component 199. The channel report component 199 may be configured to transmit, for a UE, a resource configuration indicating a first slot and one or more second slots, where the first slot includes a single DMRS symbol and each second slot of the one or more second slots includes multiple DMRS symbol; and receive, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on the one or more second slots. Although the following description may be focused on 5G NR, the concepts described herein may be applicable to other similar areas, such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.
[0051] FIG. 2A is a diagram 200 illustrating an example of a first subframe within a frame structure. FIG. 2B is a diagram 230 illustrating an example of DL channels within a subframe. FIG. 2C is a diagram 250 illustrating an example of a second subframe within a frame structure. FIG. 2D is a diagram 280 illustrating an example of UL channels within a subframe. The examples in FIGs. 2A-2D show example aspects of a frame structure based on 5G NR to illustrate the concept of a frame structure and wireless communication based on a frame structure. Various aspects described in connection with FIGs. 2A-2D may also be used in connection with other wireless communication technologies, such as 6G among other examples. The frame structure may be frequency division duplexed (FDD) in which for a particular set of subcarriers (carrier system bandwidth), subframes within the set of subcarriers are dedicated for either DL or UL, or may be time division duplexed (TDD) in which for a particular set of subcarriers (carrier system bandwidth), subframes within the set of subcarriers are dedicated for both DL and UL. In the examples provided by FIGs. 2A, 2C, the 5G NR frame structure is assumed to be TDD, with subframe 4 being configured with slot format 28 (with mostly DL), where D is DL, U is UL, and F is flexible for use between DL / UL, and subframe 3 being configured with slot format 1 (with all UL). While subframes 3, 4 are shown with slot formats 1, 28, respectively, any particular subframe may be configured with any of the various available slot formats 0-61. Slot formats 0, 1 are all DL, UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. UEs are configured with the slot format (dynamically through DL control information (DCI), or semi-statically / statically through radio resource control (RRC) signaling) through a received slot format indicator (SFI). Note that the description infra applies also to a 5G NR frame structure that is TDD.129025-2476WO01Qualcomm Ref. No. 2407367WO 17
[0052] FIGs. 2A-2D illustrate a frame structure, and the aspects of the present disclosure may be applicable to other wireless communication technologies, which may have a different frame structure and / or different channels. A frame (10 ms) may be divided into 10 equally sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include mini-slots, which may include 7, 4, or 2 symbols. Each slot may include 14 or 12 symbols, depending on whether the cyclic prefix (CP) is normal or extended. For normal CP, each slot may include 14 symbols, and for extended CP, each slot may include 12 symbols. The symbols on DL may be CP orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbols. The symbols on UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (for power limited scenarios; limited to a single stream transmission). The number of slots within a subframe is based on the CP and the numerology. The numerology defines the subcarrier spacing (SCS) (see Table 1). The symbol length / duration may scale with 1 / SCS.Table 1: Numerology, SCS, and CP
[0053] For normal CP (14 symbols / slot), different numerologies p 0 to 4 allow for 1, 2, 4, 8, and 16 slots, respectively, per subframe. For extended CP, the numerology 2 allows for 4 slots per subframe. Accordingly, for normal CP and numerology p, there are 14 symbols / slot and 2^ slots / subframe. The subcarrier spacing may be equal to 2 * 15 kHz, where g is the numerology 0 to 4. As such, the numerology p=0 has a subcarrier spacing of 15 kHz and the numerology p=4 has a subcarrier spacing of 240 kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIGs.129025-2476WO01Qualcomm Ref. No. 2407367WO 182A-2D provide an example of normal CP with 14 symbols per slot and numerology p=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 ps. Within a set of frames, there may be one or more different bandwidth parts (BWPs) (see FIG. 2B) that are frequency division multiplexed. Each BWP may have a particular numerology and CP (normal or extended).
[0054] A resource grid may be used to represent the frame structure. Each time slot includes a resource block (RB) (also referred to as physical RBs (PRBs)) that extends 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.
[0055] As illustrated in FIG. 2A, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include demodulation RS (DM-RS) (indicated as R for one particular configuration, but other DM-RS configurations are possible) and channel state information reference signals (CSI-RS) for channel estimation at the UE. The RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PT-RS).
[0056] FIG. 2B illustrates an example of various DL channels within a subframe of a frame.The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE including six RE groups (REGs), each REG including 12 consecutive REs in an OFDM symbol of an RB. A PDCCH within one BWP may be referred to as a control resource set (CORESET). A UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., common search space, UE-specific search space) during PDCCH monitoring occasions on the CORESET, where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at greater and / or lower frequencies across the channel bandwidth. A primary synchronization signal (PSS) may be within symbol 2 of particular subframes of a frame. The PSS is used by a UE 104 to determine subframe / symbol timing and a physical layer identity. A secondary synchronization signal (SSS) may be within symbol 4 of particular subframes of a frame. The SSS is used by a UE to determine a physical layer cell identity group number and radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine a physical cell identifier (PCI). Based on the PCI, the UE can determine the locations of the DM-RS. The physical broadcast channel (PBCH), which carries129025-2476WO01Qualcomm Ref. No. 2407367WO 19 a master information block (MIB), may be logically grouped with the PSS and SSS to form a synchronization signal (SS)ZPBCH block (also referred to as SS block (SSB)). The MIB provides a number of RBs in the system bandwidth and a system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs), and paging messages.
[0057] As illustrated in FIG. 2C, some of the REs carry DM-RS (indicated as R for one particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may transmit DM-RS for the physical uplink control channel (PUCCH) and DM-RS for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first one or two symbols of the PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the particular PUCCH format used. The UE may transmit sounding reference signals (SRS). The SRS may be transmitted in the last symbol of a subframe. The SRS may have a comb structure, and a UE may transmit SRS on one of the combs. The SRS may be used by a base station for channel quality estimation to enable frequencydependent scheduling on the UL.
[0058] FIG. 2D illustrates an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACK and / or negative ACK (NACK)). The PUSCH carries data, and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.
[0059] FIG. 3 is a block diagram of a base station 310 in communication with a UE 350 in an access network. In the DL, Internet protocol (IP) packets may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functionality. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides RRC layer functionality associated with broadcasting of system information (e.g., MIB, SIBs), RRC129025-2476WO01Qualcomm Ref. No. 2407367WO 20 connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with the transfer of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation, and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.
[0060] The transmit (TX) processor 316 and the receive (RX) processor 370 implement layer 1 functionality associated with various signal processing functions. Layer 1, which includes a physical (PHY) layer, may include error detection on the transport channels, forward error correction (FEC) coding / decoding of the transport channels, interleaving, rate matching, mapping onto physical channels, modulation / demodulation of physical channels, and MIMO antenna processing. The TX processor 316 handles mapping to signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and / or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to produce multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation scheme, as well as for spatial processing. The channel estimate may be derived from a reference signal and / or channel condition feedback transmitted by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318Tx. Each transmitter 318Tx may modulate a radio frequency (RF) carrier with a respective spatial stream for transmission.129025-2476WO01Qualcomm Ref. No. 2407367WO 21
[0061] At the UE 350, each receiver 354Rx receives a signal through its respective antenna 352. Each receiver 354Rx recovers information modulated onto an RF carrier and provides the information to the receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions. The RX processor 356 may perform spatial processing on the information to recover any spatial streams destined for the UE 350. If multiple spatial streams are destined for the UE 350, they may be combined by the RX processor 356 into a single OFDM symbol stream. The RX processor 356 then converts the OFDM symbol stream from the time-domain to the frequency domain using a Fast Fourier Transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, and the reference signal, are recovered and demodulated by determining the most likely signal constellation points transmitted by the base station 310. These soft decisions may be based on channel estimates computed by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the base station 310 on the physical channel. The data and control signals are then provided to the controller / processor 359, which implements layer 3 and layer 2 functionality.
[0062] The controller / processor 359 can be associated with at least one memory 360 that stores program codes and data. The at least one memory 360 may be referred to as a computer-readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, and control signal processing to recover IP packets. The controller / processor 359 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.
[0063] Similar to the functionality described in connection with the DL transmission by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIBs) acquisition, RRC connections, and measurement reporting; PDCP layer functionality associated with header compression / decompression, and security (ciphering, deciphering, integrity protection, integrity verification); RLC layer functionality associated with the transfer of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between129025-2476WO01Qualcomm Ref. No. 2407367WO 22 logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.
[0064] Channel estimates derived by a channel estimator 358 from a reference signal or feedback transmitted by the base station 310 may be used by the TX processor 368 to select the appropriate coding and modulation schemes, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antenna 352 via separate transmitters 354Tx. Each transmitter 354Tx may modulate an RF carrier with a respective spatial stream for transmission.
[0065] The UL transmission is processed at the base station 310 in a manner similar to that described in connection with the receiver function at the UE 350. Each receiver 318Rx receives a signal through its respective antenna 320. Each receiver 318Rx recovers information modulated onto an RF carrier and provides the information to a RX processor 370.
[0066] The controller / processor 375 can be associated with at least one memory 376 that stores program codes and data. The at least one memory 376 may be referred to as a computer-readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover IP packets. The controller / processor 375 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.
[0067] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform aspects in connection with the channel report component 198 of FIG. 1.
[0068] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform aspects in connection with the channel report component 199 of FIG. 1.
[0069] The performance of new radio (NR) downlink time division duplexing (TDD) special slot demodulation may impact overall network throughput. For example, special slots with the PDSCH duration of seven or fewer may include a single DMRS symbol, regardless of the DMRS-additional-pos settings. This limitation results in an effective SNR at the last PDSCH symbol that is fundamentally capped by the time-selectivity of the channel, leading to a significantly higher BLER compared to normal slots that include more than one DMRS symbols.129025-2476WO01Qualcomm Ref. No. 2407367WO 23
[0070] When the network maintains a single outer-loop feedback mechanism for all downlink slots regardless of the PDSCH duration, the increased BLER in special slots may adversely affect the MCS for all downlink slots and degrade the overall throughput. Although maintaining separate outer-loops (e.g., mechanisms that adjust the MCS selection by regulating the BLER based on the decoding performance) for normal and special slots could address this issue, it is a costly approach for the network (e.g., due to increased complexity and higher computational burden). An alternative and more cost-effective solution is for the UE to provide the network with the desired difference in the quality metrics (e.g., CQIs) between normal and special slots.
[0071] Example aspects presented herein provide methods and apparatus to enhance the channel reporting mechanisms, such as the CSI report, for wireless communication, including the computation and reporting of the quality metrics (e.g., CQIs) for downlink special slots.
[0072] In some aspects, the UE may compute more than one CQI report using the same set of channel measurement resources (CMR) and / or interference measurement resources (IMR). For example, the UE may generate one CQI report for a reference TDRA slot, which may be a regular downlink slot, and another CQI report for other TDRAs configured by the network, such as special slots or PDSCH type-B slots.
[0073] In some examples, the UE may measure the time-selectivity of the channel and compute the desired CQIs for each TDRA, considering the time-selectivity impact on the UE’s performance. In some examples, the reference TDRA and groups of nonreference TDRA may be predefined in the wireless communication specification. In some examples, the network (e.g., a gNB) may select the reference TDRA and groups of non-reference TDRA and inform the UE of the selection via radio resource control (RCC) or medium access control (MAC) - control element (MAC-CE) protocols. In some aspects, the UE may report the computed multiple CQIs either in a single report (e.g., a single CSI report) or in different reports (e.g., different CSI reports).
[0074] In some examples, for non-reference TDRA CQI reporting, the number of bits for reporting may be reduced if the difference between the CQIs of the reference TDRA and non-reference TDRA, referred to as the “delta-CQI,” is reported.
[0075] Additionally, besides reporting the CQI, the UE may report other metrics such as the rank indicator (RI), the precoding matrix indicator (PMI), or the layer indicator (LI). For example, the UE may generate the desired ranks and PMI for slots with non- reference TDRAs and report them to the network, resulting in full CSI reports for non-129025-2476WO01Qualcomm Ref. No. 2407367WO 24 reference TDRAs. In some examples, the UE’s capabilities for reporting the difference in CQI, RI, PMI, or LI may be defined.
[0076] In some examples, the UE may calculate the desired CQI for each TDRA in a set of TDRAs configured by the network. The UE then may report the difference between the CQI of these TDRAs and the CQI of a reference TDRA (e.g., the delta-CQI) to the network. In some examples, the reporting periodicity of the delta-CQI (or other metrics) may be the same as the normal CSI reports, and the CSI reports may always include CQIs for the reference TDRA and delta-CQIs for non-reference TDRAs. In some examples, the reporting periodicity of the delta-CQI (or other metrics) may be different than the periodicity of the normal CSI reports, as the relatively slow changes in channel time-selectivity allow for less frequent updates for the delta-CQI (or other metrics).
[0077] In some examples, depending on the reporting periodicity of the delta-CQI (or other metrics), some CSI reports may include both reference CQIs and delta-CQIs, while other CSI reports may include reference CQIs (without the delta-CQIs). In some examples, the delta-CQIs (or other metrics) may be reported in a separate report. In some examples, the delta-CQIs (or other metrics) may be reported in an aperiodic report, which may be based on requests from the network or the UE.
[0078] The delta-CQI mapping may be processed in several ways. In one configuration, the delta-CQI may be calculated as the absolute difference between the reference CQI and the non-reference CQI. For sub-band CQI reporting, a single delta-CQI value may be reported for all sub-bands, representing the maximum difference on the CQIs across these sub-bands. In some examples, one delta-CQI value may be reported for each individual sub-band. In some examples, a lookup table (LUT), which may be agreed upon by the UE and the network, may be used to encode the delta-CQI and report a single value across all sub-bands. This LUT may be updated in a semi-static fashion based on UE indications or selections. Table 2 shows an example of a lookup table between reference CQI and delta-CQI.129025-2476WO01Qualcomm Ref. No. 2407367WO 25Table 2: An example of a lookup table between reference CQI and delta-CQI
[0079] In some examples, the UE may calculate more than one CQIs utilizing a set of CMR and / or IMR. For example, the UE may calculate two CQIs utilizing a set of CMR and / or IMR. One CQI may be calculated for a regular downlink slot and another for slots with non-reference TDRAs (e.g., special slots). In some examples, the UE may calculate more than one (e.g., two) CQIs utilizing more than one set of CMR and / or IMR. For example, the UE may compute one CQI for a regular downlink slot using the first set of CMR and / or IMR, and compute the CQIs for slots with non-reference TDRAs (e.g., special slots) using the second set of CMR and / or IMR.
[0080] In some examples, the UE may report more than one CQIs in a single CSI report. For example, the CSI report may include more than one CQIs, one CQI for the regular downlink slot and other CQIs for non-reference TDRAs (e.g., the special slots). In some examples, the UE may report more than one CQIs in separate CSI reports. For example, when the UE is reporting two CQIs, the UE may report one CQI in the first CSI report and report the other CQI in the second CSI report. For example, when the UE is reporting more than two CQIs, the UE may report one CQI in the first CSI report and report the CQIs in other CSI reports. In some examples, the UE may report the difference between any two of these more than two CQIs (e.g., the delta-CQI) in a CSI report as an efficient compression scheme to report these CQIs. In some examples, when the UE is reporting two CQIs, the UE may report the difference between these two CQIs (e.g., the delta-CQI) in a CSI report as an efficient compression scheme to report these two CQIs.
[0081] FIG. 4 is a call flow diagram 400 illustrating a method of wireless communication in accordance with various aspects of this present disclosure. Various aspects are described in connection with a UE 402 and a base station 404. The aspects may be129025-2476WO01Qualcomm Ref. No. 2407367WO 26 performed by the UE 402 or the base station 404 in aggregation and / or by one or more components of a base station 404 (e.g., a CU 110, a DU 130, and / or an RU 140).
[0082] As shown in FIG. 4, at 410, the UE 402 may indicate to the base station 404 its capability for reporting the quality information associated with a first measurement and a second measurement. As an example, the first measurement may include a measurement on a quality metric on the first slot, and the second measurement may include a measurement on the quality metric on each second slot of one or more second slots. The quality metric may include, for example, one or more of the CQI, the RI, the PMI, or the LI.
[0083] At 412, the UE 402 may receive from the base station 404 a resource configuration indicating the first slot and the one or more second slots. For example, the first slot may include a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots may include a second TDRA with a second DMRS symbol pattern across the symbols.
[0084] At 414, the UE 402 may determine the first measurement of the quality metric on the first slot and the second measurement of the quality metric on one or more second slots. In some examples, the first measurement and the second measurement may be determined based on the same set of CMRs or IMRs. For example, the UE may calculate the first measurement of the quality metric on the first slot based on a set of CMRs or IMRs, and calculate the second measurement of the quality metric on the one or more second slots based on the same set of CMRs or IMRs. In some examples, the first measurement and the second measurement may be determined based on different sets of CMRs or IMRs. For example, the UE may calculate the first measurement of the quality metric on the first slot based on a first set of CMRs or IMRs, and calculate the second measurement of the quality metric on the one or more second slots based on a second set of CMRs or IMRs different from the first set of CMRs or IMRs.
[0085] At 418, the UE 402 may report the quality information associated with the first measurement and the second measurement to the base station 404. The UE 402 may report the quality information associated with the first measurement and the second measurement in different ways. In one configuration, the UE 402 may report the quality information via a single CSI report (e.g., at 420), and the single CSI report (e.g., at 420) may include the quality information. In some examples, the quality information in the single CSI report may include the first measurement and the second129025-2476WO01Qualcomm Ref. No. 2407367WO 27 measurement. In some examples, the quality information in the single CSI report (e.g., at 420) may include the quality variation based on the first measurement and the second measurement. For example, the quality variation may include the absolute difference between the first measurement and the second measurement. In some examples, the first measurement may include multiple first subband measurements corresponding to multiple subbands, and the second measurement may include multiple second subband measurements corresponding to the multiple subbands. In this case, the quality variation may be based on a variation between the multiple first subband measurements and the multiple second subband measurements. For example, the quality variation may include the maximum difference between the multiple first subband measurements and corresponding measurements in the multiple second subband measurements. For example, the quality variation may include multiple subband differences between the multiple first subband measurements and corresponding measurements in the multiple second subband measurements. In some examples, the quality variation may be based on a look-up table (LUT), and the LUT may include the differences between the multiple first subband measurements, the multiple second subband measurements, and corresponding quality variations.
[0086] In some examples, the reporting of the quality information may be based on a report request. For example, the UE 402 may, at 416, receive a report request for the quality information from the base station 404, and the UE 402 may report (e.g., at 418) the quality information associated with the first measurement and the second measurement to the base station 404 in response to the report request.
[0087] In another configuration, the UE 402 may report the quality information via multiple (e.g., two) CSI reports. For example, the UE 402 may use two CSI reports (e.g., the first CSI report (e.g., at 422) and the second CSI report (e.g., at 424)) to send the quality information to the base station 404. The first CSI report (e.g., at 422) may include the first measurement, and the second CSI report (e.g., at 424) may include the second measurement.
[0088] FIG. 5 is a flowchart 500 illustrating methods of wireless communication at a UE in accordance with various aspects of the present disclosure. The method may be performed by a UE in cooperation with a network entity. The network entity may be a base station, or a component of a base station, in the access network of FIG. 1 or a core network component (e.g., base station 102, 310). The UE may be the UE 104, 350. By enabling the UE to compute and report separate CQIs or the variations129025-2476WO01Qualcomm Ref. No. 2407367WO 28 between the CQIs, the methods allow the network to better adapt MCS selection to different slot types, thereby avoiding throughput degradation caused by overly conservative scheduling, and improving the overall efficiency of wireless communication. Additionally, by reporting the variations between CQIs for different resources (e.g., reference TDRA and non-reference TDRA), the methods reduce feedback overhead, thereby improving the efficiency of CQI reporting (e.g., CSI reporting).
[0089] As shown in FIG. 5, at 502, the UE may determine a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots. The first slot may include a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols. In some examples, the first TDRA, the first DMRS symbol pattern, and a set of possible second TDRAs and second DMRS symbol patterns may be predefined based on the maximum number of DMRS symbols. In some examples, the network (e.g., gNB) may signal to the UE via RRC or MAC-CE about the number of the second TDRAs and DMRS symbol patterns and which of these second TDRAs and DMRS symbol patterns will be used for UE reporting. In some examples, the network (e.g., gNB) may flexibly determine the first TDRA, the first DMRS symbol pattern, the second TDRAs, and the second DMRS symbol patterns and then signal this information to the UE via RRC or MAC-CE. For example, referring to FIG. 4, the UE 402 may, at 414, determine the first measurement of the quality metric on the first slot and the second measurement of the quality metric on each second slot of one or more second slots. In some aspects, 502 may be performed by the channel report component 198.
[0090] At 504, the UE may report, to the network entity, quality information associated with the first measurement and the second measurement. For example, referring to FIG. 4, the UE 402 may, at 418, report to the network entity (e.g., base station 404) quality information associated with the first measurement and the second measurement. In some aspects, 504 may be performed by the channel report component 198.
[0091] FIG. 6 is a flowchart 600 illustrating methods of wireless communication at a UE in accordance with various aspects of the present disclosure. The method may be performed by a UE in cooperation with a network entity. The network entity may be a base station, or a component of a base station, in the access network of FIG. 1 or a129025-2476WO01Qualcomm Ref. No. 2407367WO 29 core network component (e.g., base station 102, 310). The UE may be the UE 104, 350. By enabling the UE to compute and report separate CQIs or the variations between the CQIs, the methods allow the network to better adapt MCS selection to different slot types, thereby avoiding throughput degradation caused by overly conservative scheduling, and improving the overall efficiency of wireless communication. Additionally, by reporting the variations between CQIs for different resources (e.g., reference TDRA and non-reference TDRA), the methods reduce feedback overhead, thereby improving the efficiency of CQI reporting (e.g., CSI reporting).
[0092] As shown in FIG. 6, at 606, the UE may determine a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots. The first slot may include a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols. In some examples, the first TDRA, the first DMRS symbol pattern, and a set of possible second TDRAs and second DMRS symbol patterns may be predefined based on the maximum number of DMRS symbols. In some examples, the network (e.g., gNB) may signal to the UE via RRC or MAC-CE about the number of the second TDRAs and DMRS symbol patterns and which of these second TDRAs and DMRS symbol patterns will be used for UE reporting. In some examples, the network (e.g., gNB) may flexibly determine the first TDRA, the first DMRS symbol pattern, the second TDRAs, and the second DMRS symbol patterns and then signal this information to the UE via RRC or MAC-CE. For example, referring to FIG. 4, the UE 402 may, at 414, determine the first measurement of the quality metric on the first slot and the second measurement of the quality metric on each second slot of one or more second slots. In some aspects, 606 may be performed by the channel report component 198.
[0093] At 608, the UE may report, to the network entity, quality information associated with the first measurement and the second measurement. For example, referring to FIG. 4, the UE 402 may, at 418, report to the network entity (e.g., base station 404) quality information associated with the first measurement and the second measurement. In some aspects, 608 may be performed by the channel report component 198.
[0094] In some aspects, at 604, the UE may receive, from the network entity, a resource configuration indicating the first slot and the one or more second slots. The129025-2476WO01Qualcomm Ref. No. 2407367WO 30 determination of the first measurement and the second measurement (e.g., at 606) may be based on the resource configuration. For example, referring to FIG. 4, the UE 402 may, at 412, receive from the network entity (e.g., base station 404) a resource configuration indicating the first slot and the one or more second slots. The determination of the first measurement and the second measurement (e.g., at 414) may be based on the resource configuration. In some aspects, 604 may be performed by the channel report component 198.
[0095] In some aspects, the first DMRS symbol pattern includes a single DMRS symbol being distributed across the symbols, and the second DMRS symbol pattern includes multiple DMRS symbols being distributed across the symbols.
[0096] In some aspects, the first DMRS symbol pattern includes a maximum number of DMRS symbols being distributed across the symbols in a slot, and the second DMRS symbol pattern includes a single DMRS symbol being distributed in a slot.
[0097] In some aspects, the maximum number of DMRS symbols is defined by radio resource control (RRC) signaling.
[0098] In some aspects, the quality metric may include one or more of a channel quality indicator (CQI), a rank indicator (RI), a precoding matrix indicator (PMI), or a layer indicator (LI). For example, referring to FIG. 4, the quality metric (e.g., at 414) may include one or more of a CQI, an RI, a PMI, or an LI.
[0099] In some aspects, to report the quality information associated with the first measurement and the second measurement, the UE may (e.g., at 610) transmit a CSI report to the network entity. The CSI report may include the quality information, and the quality information may include the first measurement and the second measurement. For example, referring to FIG. 4, the UE 402 may transmit to the network entity (e.g., base station 404) a CSI report (e.g., at 420). The CSI report (e.g., at 420) may include the quality information, and the quality information may include the first measurement and the second measurement.
[0100] In some aspects, to report the quality information associated with the first measurement and the second measurement, the UE may (e.g., at 612) transmit a first CSI report and a second CSI report to the network entity. The first CSI report may include the first measurement and the second CSI report may include the second measurement. For example, referring to FIG. 4, the UE 402 may, at 418, transmit to the network entity (e.g., base station 404) a first CSI report (e.g., 422) and a second CSI report (e.g., 422). The first CSI report (e.g., 420) may include the first129025-2476WO01Qualcomm Ref. No. 2407367WO 31 measurement and the second CSI report (e.g., 422) may include the second measurement.
[0101] In some aspects, to report the quality information associated with the first measurement and the second measurement, the UE may (e.g., at 610) transmit a CSI report to the network entity. The CSI report may include the quality information, and the quality information may include a quality variation based on the first measurement and the second measurement. For example, referring to FIG. 4, the CSI report (e.g., at 420) may include the quality information, and the quality information may include the quality variation based on the first measurement and the second measurement.
[0102] In some aspects, the quality variation may include an absolute difference between the first measurement and the second measurement.
[0103] In some aspects, the first measurement may include multiple first sub-band measurements corresponding to multiple sub-bands, and the second measurement may include multiple second sub-band measurements corresponding to the multiple sub-bands. The quality variation may be based on a variation between the multiple first sub-band measurements and the multiple second sub-band measurements.
[0104] In some aspects, the quality variation may include a maximum difference between the multiple first sub-band measurements and corresponding measurements in the multiple second sub-band measurements.
[0105] In some aspects, the quality variation may include multiple sub-band differences between the multiple first sub-band measurements and corresponding measurements in the multiple second sub-band measurements.
[0106] In some aspects, the quality variation may be based on a look-up table (LUT), and the LUT may include differences between the multiple first sub-band measurements, the multiple second sub-band measurements, and corresponding quality variations.
[0107] In some aspects, to report the quality information associated with the first measurement and the second measurement, the UE may report, based on a report periodicity, the quality information associated with the first measurement and the second measurement (e.g., at 614). For example, referring to FIG. 4, the UE 402 may (e.g., at 418) report the quality information associated with the first measurement and the second measurement based on the report periodicity.
[0108] In some aspects, the report periodicity may include a regular periodicity for reporting a regular CSI report for the one or more second slots, and the quality information129025-2476WO01Qualcomm Ref. No. 2407367WO 32 associated with the first measurement and the second measurement may be included in the regular CSI report.
[0109] In some aspects, the report periodicity may be different from a regular periodicity for reporting a regular CSI report for the one or more second slots.
[0110] In some aspects, to report the quality information associated with the first measurement and the second measurement, the UE may receive a report request for the quality information; and report, based on the report request, the quality information associated with the first measurement and the second measurement. For example, referring to FIG. 4, the UE 402 may, at 416, receive a report request from the network entity (e.g., base station 404), and the UE 402 may (e.g., at 418) report the quality information associated with the first measurement and the second measurement based on the report request.[OHl] In some aspects, at 602, the UE may indicate, to the network entity, a capability for reporting the quality information associated with the first measurement and the second measurement. For example, referring to FIG. 4, the UE 402 may, at 410, indicate to the network entity (e.g., base station 404) the capability for reporting the quality information associated with the first measurement and the second measurement. In some aspects, 602 may be performed by the channel report component 198.
[0112] In some aspects, the capability for reporting the quality information includes one or more of a first capability for reporting the first measurement and the second measurement in one CSI report, a second capability for reporting the first measurement and the second measurement respectively in multiple CSI reports, a third capability for reporting a quality variation based on the first measurement and the second measurement in the one CSI report, or a sub-band capability for reporting the quality information based on multiple sub-band measurements, and where the UE may receive, from the network entity, a report configuration for reporting the quality information associated with the first measurement and the second measurement, where the report configuration is based on the capability. For example, referring to FIG. 4, the capability for reporting the quality information (e.g., at 410) may include one or more of a first capability for reporting the first measurement and the second measurement in one CSI report (e.g., at 420), a second capability for reporting the first measurement and the second measurement respectively in multiple CSI reports (e.g., 422 and 424), a third capability for reporting a quality variation based on the first measurement and the second measurement in the one CSI report (e.g., at 420), or129025-2476WO01Qualcomm Ref. No. 2407367WO 33 a sub-band capability for reporting the quality information based on multiple subband measurements. The UE 402 may, at 412, receive, from the network entity (e.g., base station 404), a report configuration for reporting the quality information associated with the first measurement and the second measurement, and the report configuration (e.g., at 412) is based on the capability (e.g., at 410).
[0113] In some aspects, to determine the first measurement of the quality metric on the first slot and the second measurement of the quality metric on the one or more second slots, the UE may calculate, based on a set of channel measurement resources (CMRs) and / or interference measurement resources (IMRs), the first measurement of the quality metric on the first slot; and calculate, based on the set of CMRs and / or IMRs, the second measurement of the quality metric on the one or more second slots.
[0114] In some aspects, to determine the first measurement of the quality metric on the first slot and the second measurement of the quality metric on the one or more second slots, the UE may calculate, based on a first set of channel measurement resources (CMRs) and / or interference measurement resources (IMRs), the first measurement of the quality metric on the first slot; and calculate, based on a second set of CMRs and / or IMRs, the second measurement of the quality metric on the one or more second slots, where the first set of CMRs and / or IMRs are different from the second set of CMRs and / or IMRs.
[0115] In some aspects, the UE may receive, from the network entity, via RRC signaling or a MAC-CE, a resource configuration indicative of one or more of the first TDRA, the first DMRS symbol pattern, a first set of second TDRAs, or a second set of second DMRS symbol patterns.
[0116] In some aspects, the first TDRA, the first DMRS symbol pattern, the first set of second TDRAs and the second set of second DMRS symbol patterns may be defined based on a maximum number of DMRS symbols.
[0117] In some aspects, the first TDRA, the first DMRS symbol pattern, the first set of second TDRAs and the second set of second DMRS symbol patterns may be determined by the network entity.
[0118] FIG. 7 is a flowchart 700 illustrating methods of wireless communication at a network entity in accordance with various aspects of the present disclosure. The method may be performed by a network entity in coordination with a UE. The network entity may be a base station, or a component of a base station, in the access network of FIG. 1 or a core network component (e.g., base station 102, 310). The UE may be the UE 104,129025-2476WO01Qualcomm Ref. No. 2407367WO 34350. By enabling the UE to compute and report separate CQIs or the variations between the CQIs, the methods allow the network to better adapt MCS selection to different slot types, thereby avoiding throughput degradation caused by overly conservative scheduling, and improving the overall efficiency of wireless communication. Additionally, by reporting the variations between CQIs for different resources (e.g., reference TDRA and non-reference TDRA), the methods reduce feedback overhead, thereby improving the efficiency of CQI reporting (e.g., CSI reporting).
[0119] As shown in FIG. 7, at 702, the network entity may transmit, for a UE, a resource configuration indicating a first slot and one or more second slots. The first slot may include a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols. For example, referring to FIG. 4, the network entity (e.g., base station 404) may, at 412, transmit for a UE 402 a resource configuration indicating a first slot and one or more second slots. The first slot may include a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols. In some aspects, 702 may be performed by the channel report component 199.
[0120] At 704, the network entity may receive, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on each second slot of the one or more second slots. For example, referring to FIG. 4, the network entity (e.g., base station 404) may, at 418, receive from the UE 402 quality information associated with a first measurement of the quality metric on the first slot and a second measurement of the quality metric on each second slot of the one or more second slots. In some aspects, 704 may be performed by the channel report component 199.
[0121] In some aspects, the quality metric may include one or more of a CQI, an RI, a PMI, or an LI. For example, referring to FIG. 4, the quality metric (e.g., at 418) may include one or more of a CQI, an RI, a PMI, or an LI.
[0122] FIG. 8 is a diagram 800 illustrating an example of a hardware implementation for an apparatus 804. The apparatus 804 may be a UE, a component of a UE, or may implement UE functionality. In some aspects, the apparatus 804 may include at least one cellular baseband processor (or processing circuitry) 824 (also referred to as a129025-2476WO01Qualcomm Ref. No. 2407367WO 35 modem) coupled to one or more transceivers 822 (e.g., cellular RF transceiver). The cellular baseband processor(s) (or processing circuitry) 824 may include at least one on-chip memory (or memory circuitry) 824'. In some aspects, the apparatus 804 may further include one or more subscriber identity modules (SIM) cards 820 and at least one application processor (or processing circuitry) 806 coupled to a secure digital (SD) card 808 and a screen 810. The application processor(s) (or processing circuitry) 806 may include on-chip memory (or memory circuitry) 806'. In some aspects, the apparatus 804 may further include a Bluetooth module 812, a WLAN module 814, an SPS module 816 (e.g., GNSS module), one or more sensor modules 818 (e.g., barometric pressure sensor / altimeter; motion sensor such as inertial measurement unit (IMU), gyroscope, and / or accelerometer(s); magnetometer, audio and / or other technologies used for positioning), additional memory modules 826, a power supply 830, and / or a camera 832. The Bluetooth module 812, the WLAN module 814, and the SPS module 816 may include an on-chip transceiver (TRX) (or in some cases, just a receiver (RX)). The Bluetooth module 812, the WLAN module 814, and the SPS module 816 may include their own dedicated antennas and / or utilize the antennas 880 for communication. The cellular baseband processor(s) (or processing circuitry) 824 communicates through the transceiver(s) 822 via one or more antennas 880 with the UE 104 and / or with an RU associated with a network entity 802. The cellular baseband processor(s) (or processing circuitry) 824 and the application processor(s) (or processing circuitry) 806 may each include a computer-readable medium / memory (or memory circuitry) 824', 806', respectively. The additional memory modules 826 may also be considered a computer-readable medium / memory (or memory circuitry). Each computer-readable medium / memory (or memory circuitry) 824', 806', 826 may be non-transitory. The cellular baseband processor(s) (or processing circuitry) 824 and the application processor(s) (or processing circuitry) 806 are each responsible for general processing, including the execution of software stored on the computer-readable medium / memory (or memory circuitry). The software, when executed by the cellular baseband processor(s) (or processing circuitry) 824 / application processor(s) (or processing circuitry) 806, causes the cellular baseband processor(s) (or processing circuitry) 824 / application processor(s) (or processing circuitry) 806 to perform the various functions described supra. The cellular baseband processor(s) (or processing circuitry) 824 and the application processor(s) (or processing circuitry) 806 are configured to perform the various129025-2476WO01Qualcomm Ref. No. 2407367WO 36 functions described supra based at least in part of the information stored in the memory (or memory circuitry). That is, the cellular baseband processor(s) (or processing circuitry) 824 and the application processor(s) (or processing circuitry) 806 may be configured to perform a first subset of the various functions described supra without information stored in the memory and may be configured to perform a second subset of the various functions described supra based on the information stored in the memory. The computer-readable medium / memory (or memory circuitry) may also be used for storing data that is manipulated by the cellular baseband processor(s) (or processing circuitry) 824 / application processor(s) (or processing circuitry) 806 when executing software. The cellular baseband processor(s) (or processing circuitry) 824 / application processor(s) (or processing circuitry) 806 may be a component of the UE 350 and may include the at least one memory 360 and / or at least one of the TX processor 368, the RX processor 356, and the controller / processor 359. In one configuration, the apparatus 804 may be at least one processor chip (modem and / or application) and include just the cellular baseband processor(s) (or processing circuitry) 824 and / or the application processor(s) (or processing circuitry) 806, and in another configuration, the apparatus 804 may be the entire UE (e.g., see UE 350 of FIG. 3) and include the additional modules of the apparatus 804.
[0123] As discussed supra, the component 198 may be configured to determine a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, where the first slot includes a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and report, to a network entity, quality information associated with the first measurement and the second measurement. The component 198 may be further configured to perform any of the aspects described in connection with the flowcharts in FIG. 5 and FIG. 6, and / or performed by the UE 402 in FIG. 4. The component 198 may be within the cellular baseband processor(s) (or processing circuitry) 824, the application processor(s) (or processing circuitry) 806, or both the cellular baseband processor(s) (or processing circuitry) 824 and the application processor(s) (or processing circuitry) 806. The component 198 may be one or more hardware components specifically configured to carry out the stated processes / algorithm, implemented by one or more processors configured to perform129025-2476WO01Qualcomm Ref. No. 2407367WO 37 the stated processes / algorithm, stored within a computer-readable medium for implementation by one or more processors, or some combination thereof. When multiple processors are implemented, the multiple processors may perform the stated processes / algorithm individually or in combination. As shown, the apparatus 804 may include a variety of components configured for various functions. In one configuration, the apparatus 804, and in particular the cellular baseband processor(s) (or processing circuitry) 824 and / or the application processor(s) (or processing circuitry) 806, includes means for determining a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, where the first slot includes a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and means for reporting, to a network entity, quality information associated with the first measurement and the second measurement. The apparatus 804 may further include means for performing any of the aspects described in connection with the flowcharts in FIG. 5 and FIG. 6, and / or aspects performed by the UE 402 in FIG. 4. The means may be the component 198 of the apparatus 804 configured to perform the functions recited by the means. As described supra, the apparatus 804 may include the TX processor 368, the RX processor 356, and the controller / processor 359. As such, in one configuration, the means may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions recited by the means.
[0124] FIG. 9 is a diagram 900 illustrating an example of a hardware implementation for a network entity 902. The network entity 902 may be a BS, a component of a BS, or may implement BS functionality. The network entity 902 may include at least one of a CU 910, a DU 930, or an RU 940. For example, depending on the layer functionality handled by the component 199, the network entity 902 may include the CU 910; both the CU 910 and the DU 930; each of the CU 910, the DU 930, and the RU 940; the DU 930; both the DU 930 and the RU 940; or the RU 940. The CU 910 may include at least one CU processor (or processing circuitry) 912. The CU processor(s) (or processing circuitry) 912 may include on-chip memory (or memory circuitry) 912'. In some aspects, the CU 910 may further include additional memory modules 914 and a communications interface 918. The CU 910 communicates with the DU 930 through a midhaul link, such as an Fl interface. The DU 930 may include at least one DU129025-2476WO01Qualcomm Ref. No. 2407367WO 38 processor (or processing circuitry) 932. The DU processor(s) (or processing circuitry) 932 may include on-chip memory (or memory circuitry) 932'. In some aspects, the DU 930 may further include additional memory modules 934 and a communications interface 938. The DU 930 communicates with the RU 940 through a fronthaul link. The RU 940 may include at least one RU processor (or processing circuitry) 942. The RU processor(s) (or processing circuitry) 942 may include on-chip memory (or memory circuitry) 942'. In some aspects, the RU 940 may further include additional memory modules 944, one or more transceivers 946, antennas 980, and a communications interface 948. The RU 940 communicates with the UE 104. The on- chip memory (or memory circuitry) 912', 932', 942' and the additional memory modules 914, 934, 944 may each be considered a computer-readable medium / memory (or memory circuitry). Each computer-readable medium / memory (or memory circuitry) may be non-transitory. Each of the processors (or processing circuitry) 912, 932, 942 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory (or memory circuitry). The software, when executed by the corresponding processor(s) (or processing circuitry) causes the processor(s) (or processing circuitry) to perform the various functions described supra. The computer-readable medium / memory (or memory circuitry) may also be used for storing data that is manipulated by the processor(s) (or processing circuitry) when executing software.
[0125] As discussed supra, the component 199 may be configured to transmit, for a UE, a resource configuration indicating a first slot and one or more second slots, wherein the first slot includes a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and receive, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on each second slot of the one or more second slots. The component 199 may be further configured to perform any of the aspects described in connection with the flowchart in FIG. 7, and / or performed by the base station 404 in FIG. 4. The component 199 may be within one or more processors (or processing circuitry) of one or more of the CU 910, DU 930, and the RU 940. The component 199 may be one or more hardware components specifically configured to carry out the stated processes / algorithm, implemented by one or more processors configured to perform the stated processes / algorithm, stored within a129025-2476WO01Qualcomm Ref. No. 2407367WO 39 computer-readable medium for implementation by one or more processors, or some combination thereof. When multiple processors are implemented, the multiple processors may perform the stated processes / algorithm individually or in combination. The network entity 902 may include a variety of components configured for various functions. In one configuration, the network entity 902 includes means for transmitting, for a UE, a resource configuration indicating a first slot and one or more second slots, wherein the first slot includes a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and means for receiving, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on each second slot of the one or more second slots. The network entity 902 may further include means for performing any of the aspects described in connection with the flowchart in FIG. 7, and / or aspects performed by the base station 404 in FIG. 4. The means may be the component 199 of the network entity 902 configured to perform the functions recited by the means. As described supra, the network entity 902 may include the TX processor 316, the RX processor 370, and the controller / processor 375. As such, in one configuration, the means may be the TX processor 316, the RX processor 370, and / or the controller / processor 375 configured to perform the functions recited by the means.
[0126] This disclosure provides a method for wireless communication at a UE. The method may include determining a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, where the first slot includes a first TDRA with a first DMRS symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and reporting, to a network entity, quality information associated with the first measurement and the second measurement. By enabling the UE to compute and report separate CQIs or the variations between the CQIs, the methods allow the network to better adapt MCS selection to different slot types, thereby avoiding throughput degradation caused by overly conservative scheduling, and improving the overall efficiency of wireless communication. Additionally, by reporting the variations between CQIs for different resources (e.g., reference TDRA and non-reference TDRA), the methods reduce129025-2476WO01Qualcomm Ref. No. 2407367WO 40 feedback overhead, thereby improving the efficiency of CQI reporting (e.g., CSI reporting).
[0127] It is understood that the specific order or hierarchy of blocks in the processes / flowcharts disclosed is an illustration of example approaches. Based upon design preferences, it is understood that the specific order or hierarchy of blocks in the processes / flowcharts may be rearranged. Further, some blocks may be combined or omitted. The accompanying method claims present elements of the various blocks in a sample order, and are not limited to the specific order or hierarchy presented.
[0128] The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects. Thus, the claims are not limited to the aspects described herein, but are to be accorded the full scope consistent with the language claims. Reference to an element in the singular does not mean “one and only one” unless specifically so stated, but rather “one or more.” Terms such as “if,” “when,” and “while” do not imply an immediate temporal relationship or reaction. That is, these phrases, e.g., “when,” do not imply an immediate action in response to or during the occurrence of an action, but simply imply that if a condition is met then an action will occur, but without requiring a specific or immediate time constraint for the action to occur. The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other aspects. Unless specifically stated otherwise, the term “some” refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof’ include any combination of A, B, and / or C, and may include multiples of A, multiples of B, or multiples of C. Specifically, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof’ may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, where any such combinations may contain one or more member or members of A, B, or C. Sets should be interpreted as a set of elements where the elements number one or more. Accordingly, for a set of X, X would include one or more elements. When at least one processor is configured to perform a set of functions, the at least one processor, individually or in129025-2476WO01Qualcomm Ref. No. 2407367WO 41 any combination, is configured to perform the set of functions. Accordingly, each processor of the at least one processor may be configured to perform a particular subset of the set of functions, where the subset is the full set, a proper subset of the set, or an empty subset of the set. A processor may be referred to as processor circuitry. A memory / memory module may be referred to as memory circuitry. If a first apparatus receives data from or transmits data to a second apparatus, the data may be received / transmitted directly between the first and second apparatuses, or indirectly between the first and second apparatuses through a set of apparatuses. A device configured to “output” data or “provide” data, such as a transmission, signal, or message, may transmit the data, for example with a transceiver, or may send the data to a device that transmits the data. A device configured to “obtain” data, such as a transmission, signal, or message, may receive, for example with a transceiver, or may obtain the data from a device that receives the data. Information stored in a memory includes instructions and / or data. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are encompassed by the claims. Moreover, nothing disclosed herein is dedicated to the public regardless of whether such disclosure is explicitly recited in the claims. The words “module,” “mechanism,” “element,” “device,” and the like may not be a substitute for the word “means.” As such, no claim element is to be construed as a means plus function unless the element is expressly recited using the phrase “means for.”
[0129] As used herein, the phrase “based on” shall not be construed as a reference to a closed set of information, one or more conditions, one or more factors, or the like. In other words, the phrase “based on A” (where “A” may be information, a condition, a factor, or the like) shall be construed as “based at least on A” unless specifically recited differently.
[0130] The following aspects are illustrative only and may be combined with other aspects or teachings described herein, without limitation.
[0131] Aspect 1 is a method of wireless communication at a UE. The method includes determining a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, wherein the first slot includes a first time domain resource allocation (TDRA) with a first demodulation reference signal (DMRS) symbol pattern across symbols, and each129025-2476WO01Qualcomm Ref. No. 2407367WO 42 second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and reporting, to a network entity, quality information associated with the first measurement and the second measurement.
[0132] Aspect 2 is the method of aspect 1, further comprising receiving, from the network entity, a resource configuration indicating the first slot and the one or more second slots, wherein the determination of the first measurement and the second measurement is based on the resource configuration.
[0133] Aspect 3 is the method of any of aspects 1 to 2, wherein the first DMRS symbol pattern includes a single DMRS symbol being distributed across the symbols, and wherein the second DMRS symbol pattern includes multiple DMRS symbols be distributed across the symbols.
[0134] Aspect 4 is the method of any of aspects 1 to 2, wherein the first DMRS symbol pattern includes a maximum number of DMRS symbols being distributed across the symbols in a slot, and wherein the second DMRS symbol pattern includes a single DMRS symbol being distributed in a slot.
[0135] Aspect 5 is the method of aspect 4, wherein the maximum number of DMRS symbols is defined by radio resource control (RRC) signaling.
[0136] Aspect 6 is the method of any of aspects 1 to 5, wherein the quality metric includes one or more of a channel quality indicator (CQI); a rank indicator (RI); a precoding matrix indicator (PMI); or a layer indicator (LI).
[0137] Aspect 7 is the method of aspect 6, wherein reporting the quality information associated with the first measurement and the second measurement comprises transmitting, to the network entity, a channel state information (CSI) report comprising the quality information, wherein the quality information includes the first measurement and the second measurement.
[0138] Aspect 8 is the method of aspect 6, wherein reporting the quality information associated with the first measurement and the second measurement comprises transmitting, to the network entity, a first channel state information (CSI) report and a second CSI report, wherein the first CSI report comprises the first measurement and the second CSI report comprises the second measurement.
[0139] Aspect 9 is the method of aspect 6, wherein reporting the quality information associated with the first measurement and the second measurement comprises transmitting, to the network entity, a channel state information (CSI) report129025-2476WO01Qualcomm Ref. No. 2407367WO 43 comprising the quality information, wherein the quality information includes a quality variation based on the first measurement and the second measurement.
[0140] Aspect 10 is the method of aspect 9, wherein the quality variation includes an absolute difference between the first measurement and the second measurement.
[0141] Aspect 11 is the method of aspect 9, wherein the first measurement includes multiple first sub-band measurements corresponding to multiple sub-bands, wherein the second measurement includes multiple second sub-band measurements corresponding to the multiple sub-bands, and wherein the quality variation is based on a variation between the multiple first sub-band measurements and the multiple second sub-band measurements.
[0142] Aspect 12 is the method of aspect 11, wherein the quality variation includes a maximum difference between the multiple first sub-band measurements and corresponding measurements in the multiple second sub-band measurements.
[0143] Aspect 13 is the method of aspect 11, wherein the quality variation includes multiple sub-band differences between the multiple first sub-band measurements and corresponding measurements in the multiple second sub-band measurements.
[0144] Aspect 14 is the method of aspect 11, wherein the quality variation is based on a lookup table (LUT), wherein the LUT comprises differences between the multiple first sub-band measurements, the multiple second sub-band measurements, and corresponding quality variations.
[0145] Aspect 15 is the method of aspect 6, wherein reporting the quality information associated with the first measurement and the second measurement comprises reporting, based on a report periodicity, the quality information associated with the first measurement and the second measurement.
[0146] Aspect 16 is the method of aspect 15, wherein the report periodicity includes a regular periodicity for reporting a regular CSI report for the one or more second slots, and wherein the quality information associated with the first measurement and the second measurement is included in the regular CSI report.
[0147] Aspect 17 is the method of aspect 15, wherein the report periodicity is different from a regular periodicity for reporting a regular CSI report for the one or more second slots.
[0148] Aspect 18 is the method of aspect 6, wherein reporting the quality information associated with the first measurement and the second measurement comprises receiving a report request for the quality information; and reporting, based on the129025-2476WO01Qualcomm Ref. No. 2407367WO 44 report request, the quality information associated with the first measurement and the second measurement.
[0149] Aspect 19 is the method of aspect 6, further comprising indicating, to the network entity, a capability for reporting the quality information associated with the first measurement and the second measurement.
[0150] Aspect 20 is the method of aspect 19, wherein the capability for reporting the quality information includes one or more of a first capability for reporting the first measurement and the second measurement in one CSI report; a second capability for reporting the first measurement and the second measurement respectively in multiple CSI reports; a third capability for reporting a quality variation based on the first measurement and the second measurement in the one CSI report; or a sub-band capability for reporting the quality information based on multiple sub-band measurements, and wherein the method further comprises receiving, from the network entity, a report configuration for reporting the quality information associated with the first measurement and the second measurement, wherein the report configuration is based on the capability.
[0151] Aspect 21 is the method of aspect 6, wherein determining the first measurement of the quality metric on the first slot and the second measurement of the quality metric on the one or more second slots comprises calculating, based on a set of channel measurement resources (CMRs) and / or interference measurement resources (IMRs), the first measurement of the quality metric on the first slot; and calculating, based on the set of CMRs and / or IMRs, the second measurement of the quality metric on the one or more second slots.
[0152] Aspect 22 is the method of aspect 6, wherein determining the first measurement of the quality metric on the first slot and the second measurement of the quality metric on the one or more second slots comprises calculating, based on a first set of channel measurement resources (CMRs) and / or interference measurement resources (IMRs), the first measurement of the quality metric on the first slot; and calculating, based on a second set of CMRs and / or IMRs, the second measurement of the quality metric on the one or more second slots, wherein the first set of CMRs and / or IMRs are different from the second set of CMRs and / or IMRs.
[0153] Aspect 23 is the method of aspect 1, further comprising receiving, from the network entity, via radio resource control (RRC) signaling or a medium access control (MAC) - control element (MAC-CE), a resource configuration indicative of one or more of129025-2476WO01Qualcomm Ref. No. 2407367WO 45 the first TDRA; the first DMRS symbol pattern; a first set of second TDRAs; or a second set of second DMRS symbol patterns.
[0154] Aspect 24 is the method of aspect 23, wherein the first TDRA, the first DMRS symbol pattern, the first set of second TDRAs and the second set of second DMRS symbol patterns are defined based on a maximum number of DMRS symbols.
[0155] Aspect 25 is an apparatus for wireless communication at a UE, comprising: at least one memory; and at least one processor coupled to the at least one memory, the at least one processor is configured to perform the method of any of aspects 1 to 24.
[0156] Aspect 26 is the apparatus for wireless communication at a UE, comprising means for performing each step in the method of any of aspects 1 to 24.
[0157] Aspect 27 is an apparatus of any of aspects 25 to 26, further comprising a transceiver configured to receive or to transmit in association with the method of any of aspects 1 to 24.
[0158] Aspect 28 is a computer-readable medium (e.g., a non-transitory computer-readable medium) storing computer executable code at a UE, the code when executed by at least one processor causes the at least one processor to perform the method of any of aspects 1 to 24.
[0159] Aspect 29 is a method of wireless communication at a network entity. The method includes transmitting, for a user equipment (UE), a resource configuration indicating a first slot and one or more second slots, wherein the first slot includes a single demodulation reference signal (DMRS) symbol and each second slot of the one or more second slots includes multiple DMRS symbol; and receiving, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on the one or more second slots.
[0160] Aspect 30 is the method of aspect 29, wherein the quality metric includes one or more of a channel quality indicator (CQI), a rank indicator (RI), a precoding matrix indicator (PMI), or a layer indicator (LI).
[0161] Aspect 31 is an apparatus for wireless communication at a network entity, comprising: at least one memory; and at least one processor coupled to the at least one memory and, where the at least one processor is configured to perform the method of any of aspects 29 to 30.
[0162] Aspect 32 is the apparatus for wireless communication at a network entity, comprising means for performing each step in the method of any of aspects 29 to 30.129025-2476WO01Qualcomm Ref. No. 2407367WO 46
[0163] Aspect 33 is an apparatus of any of aspects 31 to 32, further comprising a transceiver configured to receive or to transmit in association with the method of any of aspects 29 to 30.
[0164] Aspect 34 is a computer-readable medium (e.g., a non-transitory computer-readable medium) storing computer executable code at a network entity, the code when executed by at least one processor causes the at least one processor to perform the method of any of aspects 29 to 30.129025-2476WO01
Claims
1. Qualcomm Ref. No. 2407367WO 47CLAIMSWHAT IS CLAIMED IS:
1. An apparatus for wireless communication at a user equipment (UE), comprising: at least one memory; and at least one processor coupled to the at least one memory and, based at least in part on information stored in the at least one memory, the at least one processor is configured to: determine a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, wherein the first slot includes a first time domain resource allocation (TDRA) with a first demodulation reference signal (DMRS) symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and report, to a network entity, quality information associated with the first measurement and the second measurement.
2. The apparatus of claim 1, further comprising a transceiver coupled to the at least one processor, wherein to report the quality information, the at least one processor is configured to report the quality information via the transceiver, and wherein the at least one processor is configured to: receive, from the network entity, a resource configuration indicating the first slot and the one or more second slots, wherein the determination of the first measurement and the second measurement is based on the resource configuration.
3. The apparatus of claim 1 , wherein the first DMRS symbol pattern includes a single DMRS symbol being distributed across the symbols, and wherein the second DMRS symbol pattern includes multiple DMRS symbols be distributed across the symbols.
4. The apparatus of claim 1, wherein the first DMRS symbol pattern includes a maximum number of DMRS symbols being distributed across the symbols in a slot, and wherein the second DMRS symbol pattern includes a single DMRS symbol being distributed in a slot.129025-2476WO01Qualcomm Ref. No. 2407367WO 485. The apparatus of claim 4, wherein the maximum number of DMRS symbols is defined by radio resource control (RRC) signaling.
6. The apparatus of claim 1, wherein the quality metric includes one or more of a channel quality indicator (CQI), a rank indicator (RI), a precoding matrix indicator (PMI), or a layer indicator (LI).
7. The apparatus of claim 6, wherein to report the quality information associated with the first measurement and the second measurement, the at least one processor is configured to: transmit, to the network entity, a channel state information (CSI) report comprising the quality information, wherein the quality information includes the first measurement and the second measurement.
8. The apparatus of claim 6, wherein to report the quality information associated with the first measurement and the second measurement, the at least one processor is configured to: transmit, to the network entity, a first channel state information (CSI) report and a second CSI report, wherein the first CSI report comprises the first measurement and the second CSI report comprises the second measurement.
9. The apparatus of claim 6, wherein to report the quality information associated with the first measurement and the second measurement, the at least one processor is configured to: transmit, to the network entity, a channel state information (CSI) report comprising the quality information, wherein the quality information includes a quality variation based on the first measurement and the second measurement.129025-2476WO01Qualcomm Ref. No. 2407367WO 4910. The apparatus of claim 9, wherein the quality variation includes an absolute difference between the first measurement and the second measurement.
11. The apparatus of claim 9, wherein the first measurement includes multiple first sub-band measurements corresponding to multiple sub-bands, wherein the second measurement includes multiple second sub-band measurements corresponding to the multiple sub-bands, and wherein the quality variation is based on a variation between the multiple first sub-band measurements and the multiple second sub-band measurements.
12. The apparatus of claim 11, wherein the quality variation includes a maximum difference between the multiple first sub-band measurements and corresponding measurements in the multiple second sub-band measurements.
13. The apparatus of claim 11, wherein the quality variation includes multiple subband differences between the multiple first sub-band measurements and corresponding measurements in the multiple second sub-band measurements.
14. The apparatus of claim 11, wherein the quality variation is based on a look-up table (LUT), wherein the LUT comprises differences between the multiple first sub-band measurements, the multiple second sub-band measurements, and corresponding quality variations.
15. The apparatus of claim 6, wherein to report the quality information associated with the first measurement and the second measurement, the at least one processor is configured to: report, based on a report periodicity, the quality information associated with the first measurement and the second measurement.
16. The apparatus of claim 15, wherein the report periodicity includes a regular periodicity for reporting a regular CSI report for the one or more second slots, and wherein the quality information associated with the first measurement and the second measurement is included in the regular CSI report.129025-2476WO01Qualcomm Ref. No. 2407367WO 5017. The apparatus of claim 15, wherein the report periodicity is different from a regular periodicity for reporting a regular CSI report for the one or more second slots.
18. The apparatus of claim 6, wherein to report the quality information associated with the first measurement and the second measurement, the at least one processor is configured to: receive a report request for the quality information; and report, based on the report request, the quality information associated with the first measurement and the second measurement.
19. A method of wireless communication at a user equipment (UE), comprising: determining a first measurement of a quality metric on a first slot and a second measurement of the quality metric on each second slot of one or more second slots, wherein the first slot includes a first time domain resource allocation (TDRA) with a first demodulation reference signal (DMRS) symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and reporting, to a network entity, quality information associated with the first measurement and the second measurement.
20. An apparatus for wireless communication at a network entity, comprising: at least one memory; and at least one processor coupled to the at least one memory and, based at least in part on information stored in the at least one memory, the at least one processor is configured to: transmit, for a user equipment (UE), a resource configuration indicating a first slot and one or more second slots, wherein the first slot includes a first time domain resource allocation (TDRA) with a first demodulation reference signal (DMRS) symbol pattern across symbols, and each second slot of the one or more second slots includes a second TDRA with a second DMRS symbol pattern across the symbols; and129025-2476WO01Qualcomm Ref. No. 2407367WO 51 receive, from the UE, quality information associated with a first measurement of a quality metric on the first slot and a second measurement of the quality metric on each second slot of the one or more second slots.129025-2476WO01
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