Indication of modulations for codewords across subbands
By indicating a single effective coding rate for codewords across multiple flexible spectrum integration subbands, the challenge of transmitting transport blocks across non-contiguous frequency bands is addressed, enhancing throughput and resource efficiency in wireless communication.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2024-12-16
- Publication Date
- 2026-06-25
AI Technical Summary
Wireless communication systems face challenges in efficiently transmitting transport blocks across non-contiguous frequency bands due to a lack of information on how to handle multiple modulation orders, leading to degraded throughput.
Indicating a single effective coding rate for a codeword across multiple flexible spectrum integration subbands with multiple modulation orders, allowing effective communication of transport blocks without degradation.
This approach conserves signaling resources and increases throughput by providing clear guidance for transmitting transport blocks across multiple subbands with a unified coding rate.
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Figure CN2024139465_25062026_PF_FP_ABST
Abstract
Description
INDICATION OF MODULATIONS FOR CODEWORDS ACROSS SUBBANDSFIELD OF THE DISCLOSURE
[0001] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with providing an indication for codeword transmission across subbands.BACKGROUND
[0002] Wireless communication systems are widely deployed to provide various services, which may involve carrying or supporting voice, text, other messaging, video, data, and / or other traffic. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication among multiple wireless communication devices including user devices or other devices by sharing the available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and / or device transmit power, among other examples) . Such multiple-access RATs are supported by technological advancements that have been adopted in various telecommunication standards, which define common protocols that enable different wireless communication devices to communicate on a local, municipal, national, regional, or global level.
[0003] An example telecommunication standard is New Radio (NR) . NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . NR (and other RATs beyond NR) may be designed to better support enhanced mobile broadband (eMBB) access, Internet of things (IoT) networks or reduced capability device deployments, and ultra-reliable low latency communication (URLLC) applications. To support these verticals, NR systems may be designed to implement a modularized functional infrastructure, a disaggregated and service-based network architecture, network function virtualization, network slicing, multi-access edge computing, millimeter wave (mmWave) technologies including massive multiple-input multiple-output (MIMO) , licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, sidelink and other device-to-device direct communication technologies (for example, cellular vehicle-to-everything (CV2X) communication) , multiple-subscriber implementations, high-precision positioning, and / or radio frequency (RF) sensing, among other examples. As the demand for connectivity continues to increase, further improvements in NR may be implemented, and other RATs, such as 6G and beyond, may be introduced to enable new applications and facilitate new use cases.SUMMARY
[0004] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE) . The method may include receiving an indication that indicates a codeword across a plurality of flexible spectrum integration subbands (FSI-SBs) for a transport block and a first plurality of modulation orders with a first single effective coding rate. The method may include communicating the transport block over the plurality of FSI-SBs with the first single effective coding rate.
[0005] Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include transmitting an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate. The method may include communicating the transport block over the plurality of FSI-SBs with the single effective coding rate.
[0006] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be individually or collectively configured to receive an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate. The one or more processors may be individually or collectively configured to communicate the transport block over the plurality of FSI-SBs with the first single effective coding rate.
[0007] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be individually or collectively configured to transmit an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate. The one or more processors may be individually or collectively configured to communicate the transport block over the plurality of FSI-SBs with the single effective coding rate.
[0008] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate. The set of instructions, when executed by one or more processors of the UE, may cause the UE to communicate the transport block over the plurality of FSI-SBs with the first single effective coding rate.
[0009] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network entity. The set of instructions, when executed by one or more processors of the network entity, may cause the network entity to transmit an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate. The set of instructions, when executed by one or more processors of the network entity, may cause the network entity to communicate the transport block over the plurality of FSI-SBs with the single effective coding rate.
[0010] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate. The apparatus may include means for communicating the transport block over the plurality of FSI-SBs with the first single effective coding rate.
[0011] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate. The apparatus may include means for communicating the transport block over the plurality of FSI-SBs with the single effective coding rate.
[0012] Aspects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, and / or processing system as substantially described with reference to, and as illustrated by, this specification and accompanying drawings.
[0013] The foregoing paragraphs of this section have broadly summarized some aspects of the present disclosure. These and additional aspects and associated advantages will be described hereinafter. The disclosed aspects may be used as a basis for modifying or designing other aspects for carrying out the same or similar purposes of the present disclosure. Such equivalent aspects do not depart from the scope of the appended claims. Characteristics of the aspects disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The appended drawings illustrate some aspects of the present disclosure but are not limiting of the scope of the present disclosure because the description may enable other aspects. Each of the drawings is provided for purposes of illustration and description, and not as a definition of the limits of the claims. The same or similar reference numbers in different drawings may identify the same or similar elements.
[0015] Fig. 1 is a diagram illustrating an example of a wireless communication network, in accordance with the present disclosure.
[0016] Fig. 2 is a diagram illustrating an example disaggregated network node architecture, in accordance with the present disclosure.
[0017] Fig. 3 is a diagram illustrating an example of flexible spectrum integration, in accordance with the present disclosure.
[0018] Fig. 4 is a diagram illustrating an example of a single transport block (TB) across component carriers, in accordance with the present disclosure.
[0019] Fig. 5 is a diagram illustrating an example of a modulation and coding scheme index table of modulation orders, in accordance with the present disclosure.
[0020] Fig. 6 is a diagram illustrating an example of TB transmission, in accordance with the present disclosure.
[0021] Fig. 7 is a diagram illustrating an example associated with indicating a coding rate, in accordance with the present disclosure.
[0022] Fig. 8 is a diagram illustrating an example of channel quality indicator and rank indicator reports, in accordance with the present disclosure.
[0023] Fig. 9 is a diagram illustrating an example of edge alignment, in accordance with the present disclosure.
[0024] Fig. 10 is a diagram illustrating an example process performed, for example, at a user equipment (UE) or an apparatus of a UE, in accordance with the present disclosure.
[0025] Fig. 11 is a diagram illustrating an example process performed, for example, at a network entity or an apparatus of a network entity, in accordance with the present disclosure.
[0026] Fig. 12 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
[0027] Fig. 13 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.DETAILED DESCRIPTION
[0028] Various aspects of the present disclosure are described hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms. The present disclosure is not to be construed as limited to any specific aspect illustrated by or described with reference to an accompanying drawing or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using various combinations or quantities of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover an apparatus having, or a method that is practiced using, other structures and / or functionalities in addition to or other than the structures and / or functionalities with which various aspects of the disclosure set forth herein may be practiced. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0029] Several aspects of telecommunication systems will now be presented with reference to various methods, operations, apparatuses, and techniques. These methods, operations, apparatuses, and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0030] A user equipment (UE) may communicate (transmit or receive) on one or more component carriers (CCs) . The UE may mix and match resources of CCs from different frequency bands to form a virtual cell (vCell) , such as frequency bands 1, 2, and 3 in a virtual cell. Carrier aggregation (CA) involves a transmission over multiple frequency blocks or CCs. A single transport block (TB) , via flexible spectrum integration (FSI) subbands (FSI-SBs) with each code block (CB) distributed in different (physical) CCs, can have user-perceived throughput (UPT) improvement over legacy CA, due to frequency-domain channel diversity for the CB. This may be the case if the CCs are from different bands (e.g., high and low bands) . However, if there are multiple modulation orders, such as 4, 6, and 8, a UE does not have information for how to communicate, such as on a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) (i.e., a PxSCH) a TB in a vCell across non-contiguous resources (e.g., CCs) with the multiple modulation orders. Without this information, the TB may be degraded, which reduces throughput.
[0031] A vCell may include the use of multiple FSI-SBs, where each FSI-SB may include one CC or a group of CCs. FSI may involve dynamically managing and integrating multiple spectrum bands, both licensed and unlicensed, to provide more efficient use of available radio frequencies for wireless communication. A UE may be configured for PxSCH transmission of a TB in the vCell across the multiple FSI-SBs (and with multiple modulation orders) .
[0032] Various aspects relate generally to TB transmissions. Some aspects more specifically relate to a network entity that transmits an indication that indicates a codeword (i.e., for the TB) across S > 1 FSI-SBs and indicates S'modulation orders with a single effective coding rate. In some aspects, S ≥ S'>1, and multiple FSI-SBs may share a common indication. The UE may communicate (transmit, for PUSCH, or receive, for PDSCH) the TB in the vCell using the indicated codeword over the multiple FSI-SBs with the single effective coding rate.
[0033] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. By indicating a single effective coding rate for a codeword (of the TB) across multiple FSI-SBs and with multiple modulation orders, the UE may have information to transmit the TB effectively with a single coding rate and without degradation. As a result, the UE may conserve signaling resources and increase throughput.
[0034] As described above, wireless communication systems may be deployed to provide various services, which may involve carrying or supporting voice, text, other messaging, video, data, and / or other traffic. Some wireless communications systems may employ multiple-access radio access technologies (RATs) . The multiple-access RATs may be capable of supporting communication with multiple wireless communication devices by sharing the available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and / or device transmit power, among other examples) . Examples of such multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
[0035] Multiple-access RATs are supported by technological advancements that have been adopted in various telecommunication standards, which define common protocols that enable wireless communication devices to communicate on a local, municipal, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . 5G NR may support enhanced mobile broadband (eMBB) access, Internet of Things (IoT) networks or reduced capability (RedCap) device deployments, ultra-reliable low-latency communication (URLLC) applications, and / or massive machine-type communication (mMTC) , among other examples.
[0036] To support these and other target verticals, a wireless communication system may be designed to implement a modularized functional infrastructure, a disaggregated and service-based network architecture, network function virtualization, network slicing, multi-access edge computing, millimeter wave (mmWave) technologies including massive multiple-input multiple-output (MIMO) , beamforming, IoT device or RedCap device connectivity and management, industrial connectivity, licensed and unlicensed spectrum access, sidelink and other device-to-device direct communication (for example, cellular vehicle-to-everything (CV2X) communication) , frequency spectrum expansion, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, device aggregation, advanced duplex communication (for example, sub-band full-duplex (SBFD) ) , multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, network energy savings (NES) , low-power signaling and radios, and / or artificial intelligence or machine learning (AI / ML) , among other examples.
[0037] The foregoing and other technological improvements may support use cases, such as wireless fronthauls, wireless midhauls, wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial and / or aerial platforms, among other examples.
[0038] As the demand for connectivity continues to increase, further improvements in NR may be implemented, and other RATs, such as 6G and beyond, may be introduced to enable new applications and facilitate new use cases. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies or new technologies and / or support one or more of the foregoing use cases or new use cases.
[0039] Fig. 1 is a diagram illustrating an example of a wireless communication network 100, in accordance with the present disclosure. The wireless communication network 100 may be or may include elements of a 5G (or NR) network or a 6G network, among other examples. The wireless communication network 100 may include multiple network nodes 110. For example, in Fig. 1, the wireless communication network 100 includes a network node (NN) 110a and a network node 110b. The network nodes 110 may support communications with multiple UEs 120. For example, in Fig. 1, the network nodes 110 support communication with a UE 120a, a UE 120b, and a UE 120c. In some examples, a UE 120 may also communicate with other UEs 120 and a network node 110 may communicate with a core network and with other network nodes 110.
[0040] The network nodes 110 and the UEs 120 of the wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and / or channels. For example, devices of the wireless communication network 100 may communicate using one or more operating bands. In some aspects, multiple wireless communication networks 100 may be deployed in a given geographic area. Each wireless communication network 100 may support a particular RAT (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency bands or ranges. In some examples, when multiple RATs are deployed in a given geographic area, each RAT in the geographic area may operate on different frequencies to avoid interference with other RATs. Additionally or alternatively, in some examples, the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs are implemented with dynamic bandwidth allocation (for example, based on user demand) in a single frequency band. In some examples, the wireless communication network 100 may support communication over unlicensed spectrum, where access to an unlicensed channel is subject to a channel access mechanism. For example, in a shared or unlicensed frequency band, a transmitting device may perform a channel access procedure, such as a listen-before-talk (LBT) procedure, to contend against other devices for channel access before transmitting on a shared or unlicensed channel.
[0041] Various operating bands have been defined as frequency range designations FR1 (410 MHz through 7.125 GHz) , FR2 (24.25 GHz through 52.6 GHz) , FR3 (7.125 GHz through 24.25 GHz) , FR4a or FR4-1 (52.6 GHz through 71 GHz) , FR4 (52.6 GHz through 114.25 GHz) , and FR5 (114.25 GHz through 300 GHz) . Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “sub-6 GHz” band in some documents and articles. Similarly, FR2 is often referred to (interchangeably) as a “millimeter wave” band in some documents and articles, despite being different than the extremely high frequency (EHF) band (30 GHz through 300 GHz) , which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. The frequencies between FR1 and FR2 are often referred to as mid-band frequencies, which include FR3. Frequency bands falling within FR3 may inherit FR1 characteristics or FR2 characteristics, and thus may effectively extend features of FR1 or FR2 into the mid-band frequencies. Thus, “sub-6 GHz, ” if used herein, may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and / or that are included in mid-band frequencies. Similarly, the term “millimeter wave, ” if used herein, may broadly refer to mid-band frequencies or to frequencies that are within FR2, FR4, FR4-a or FR4-1, FR5, and / or the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and / or other RATs beyond 52.6 GHz.
[0042] A network node 110 and / or a UE 120 may include one or more devices, components, or systems that enable communication with other devices, components, or systems of the wireless communication network 100. For example, a UE 120 and a network node 110 may each include one or more chips, system-on-chips (SoCs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system, such as a processing system 140 of the UE 120 or a processing system 145 of the network node 110. A processing system (for example, the processing system 140 and / or the processing system 145) includes processor (or “processing” ) circuitry in the form of one or multiple processors, microprocessors, processing units (such as central processing units (CPUs) , graphics processing units (GPUs) , neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , and / or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASICs) , programmable logic devices (PLDs) , or other discrete gate or transistor logic or circuitry (any one or more of which may be generally referred to herein individually as a “processor” or collectively as “the processor” or “the processor circuitry” ) . Such processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor configurable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set. In some other examples, each of a group of processors may be configurable or configured to perform a same set of functions.
[0043] The processing system 140 and the processing system 145 may each include memory circuitry in the form of one or multiple memory devices, memory blocks, memory elements, or other discrete gate or transistor logic or circuitry, each of which may include or implement tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (any one or more of which may be generally referred to herein individually as a “memory” or collectively as “the memory” or “the memory circuitry” ) . One or more of the memories may be coupled (for example, operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors and may individually or collectively store processor-executable code or instructions (such as software) that, when executed by one or more of the processors, may configure one or more of the processors to perform various functions or operations described herein. Additionally or alternatively, in some examples, one or more of the processors may be configured to perform various functions or operations described herein without requiring configuration by software. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
[0044] The processing system 140 and the processing system 145 may each include or be coupled with one or more modems (such as a cellular (for example, a 5G or 6G compliant) modem) . In some examples, one or more processors of the processing system 140 and / or the processing system 145 include or implement one or more of the modems. The processing system 140 and the processing system 145 may also include or be coupled with multiple radios (collectively “the radio” ) , multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas. In some examples, one or more processors of the processing system 140 and / or the processing system 145 include or implement one or more of the radios, RF chains, or transceivers. An RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs) , and / or other devices that convert between an analog signal (such as for transmission or reception via an air interface) and a digital signal (such as for processing by the processing system 140 of the UE 120 or by the processing system 145 of the network node 110) .
[0045] A network node 110 and a UE 120 may each include one or multiple antennas or antenna arrays. Typical network nodes 110 and UEs 120 may include multiple antennas, which may be organized or structured into one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. As used herein, the term “antenna” can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. The term “antenna panel” can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamforming by manipulating parameters associated with the group of antennas. The term “antenna module” may refer to circuitry including one or more antennas as well as one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device such as the network node 110 and the UE 120.
[0046] A network node 110 may be, may include, or may also be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, a gNB, an access point (AP) , a transmission reception point (TRP) , a network entity, a network element, a network equipment, and / or another type of device, component, or system included in a radio access network (RAN) . In various deployments, a network node 110 may be implemented as a single physical node (for example, a single physical structure) or may be implemented as two or more physical nodes (for example, two or more distinct physical structures) . For example, a network node 110 may be a device or system that implements a part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack) , or a collection of devices or systems that collectively implement the full radio protocol stack. For example, and as shown, a network node 110 may be an aggregated network node having an aggregated architecture, meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single physical structure in the wireless communication network 100. For example, an aggregated network node 110 may consist of a single standalone base station or a single TRP that operates with a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
[0047] Alternatively, and as also shown, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , having a disaggregated architecture, meaning that the network node 110 may operate with a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same geographic location or in different geographic locations. An example disaggregated network node architecture is described in more detail below with reference to Fig. 2. In some deployments, disaggregated network nodes 110 may be used in an integrated access and backhaul (IAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance with the O-RAN Alliance) , or in a virtualized radio access network (vRAN) , also known as a cloud radio access network (C-RAN) , to facilitate scaling by separating network functionality into multiple units or modules that can be individually deployed.
[0048] The network nodes 110 of the wireless communication network 100 may include one or more central units (CUs) , one or more distributed units (DUs) , and one or more radio units (RUs) . A CU may host one or more higher layers, such as a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, and a service data adaptation protocol (SDAP) layer, among other examples. A DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and / or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some examples, a DU also may host a lower PHY layer that is configured to perform functions, such as a fast Fourier transform (FFT) , an inverse FFT (IFFT) , beamforming, and / or physical random access channel (PRACH) extraction and filtering, among other examples. An RU may perform RF processing functions or lower PHY layer functions, such as an FFT, an IFFT, beamforming, or PRACH extraction and filtering, among other examples, according to a functional split, such as a lower layer split (LLS) . In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120. In some examples, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. In some examples, a CU, a DU, and / or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) , among other examples, which may be implemented as a virtual network function, such as in a cloud deployment.
[0049] Some network nodes 110 (for example, a base station, an RU, or a TRP) may provide communication coverage for a particular geographic area. The term “cell” can refer to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used. A network node 110 may support one or more cells (for example, each cell may support communication within an angular (for example, 60 degree) range around the network node) . In some examples, a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by UEs 120 with associated service subscriptions. A pico cell may cover a relatively small geographic area and may also allow unrestricted access by UEs 120 with associated service subscriptions. A femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG) ) . In some examples, a cell may not necessarily be stationary. For example, the geographic area of the cell may move according to the location of an associated mobile network node 110 (for example, a train, a satellite, an unmanned aerial vehicle, or an NTN network node) .
[0050] The wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and / or disaggregated network nodes, among other examples. Various different types of network nodes 110 may generally transmit at different power levels, serve different coverage areas (for example, a cell 130a and a cell 130b) , and / or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110.
[0051] The UEs 120 may be physically dispersed throughout the coverage area of the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or may also be referred to as an access terminal, a mobile station, or a subscriber unit. A UE 120 may be, include, or be coupled with a cellular phone (for example, a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, or smart jewelry) , a gaming device, an entertainment device (for example, a music device, a video device, or a satellite radio) , an XR device, a vehicular component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device) , a UE function of a network node, and / or any other suitable device or function that may communicate via a wireless medium.
[0052] Some UEs 120 may be classified according to different categories in association with different complexities and / or different capabilities. UEs 120 in a first category may facilitate massive IoT in the wireless communication network 100, and may offer low complexity and / or cost relative to UEs 120 in a second category. UEs 120 in a second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-tier UEs, advanced UEs, full-capability UEs, and / or premium UEs that are capable of URLLC, eMBB, and / or precise positioning in the wireless communication network 100, among other examples. A third category of UEs 120 may have mid-tier complexity and / or capability (for example, a capability between that of the UEs 120 of the first category and that of the UEs 120 of the second capability) . A UE 120 of the third category may be referred to as a reduced capability UE ( “RedCap UE” ) , a mid-tier UE, an NR-Light UE, and / or an NR-Lite UE, among other examples. RedCap UEs may bridge a gap between the capability and complexity of NB-IoT devices and / or eMTC UEs, and mission-critical IoT devices and / or premium UEs. RedCap UEs may include, for example, wearable devices, IoT devices, industrial sensors, or cameras that are associated with a limited bandwidth, power capacity, and / or transmission range, among other examples. RedCap UEs may support healthcare environments, building automation, electrical distribution, process automation, transport and logistics, or smart city deployments, among other examples.
[0053] In some examples, a network node 110 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link) . The radio access link may include a downlink and an uplink. “Downlink” (or “DL” ) refers to a communication direction from a network node 110 to a UE 120, and “uplink” (or “UL” ) refers to a communication direction from a UE 120 to a network node 110. Downlink and uplink resources may include time domain resources (for example, frames, subframes, slots, and symbols) , frequency domain resources (for example, frequency bands, component carriers (CCs) , subcarriers, resource blocks, and resource elements) , and spatial domain resources (for example, particular transmit directions or beams) .
[0054] Frequency domain resources may be subdivided into bandwidth parts (BWPs) . A BWP may be a block of frequency domain resources (for example, a continuous set of resource blocks (RBs) within a full component carrier bandwidth) that may be configured at a UE-specific level. A UE 120 may be configured with both an uplink BWP and a downlink BWP (which may be the same or different) . Each BWP may be associated with its own numerology (indicating a sub-carrier spacing (SCS) and cyclic prefix (CP) ) . A BWP may be dynamically configured or activated (for example, by a network node 110 transmitting a downlink control information (DCI) configuration to the one or more UEs 120) and / or reconfigured (for example, in real-time or near-real-time) according to changing network conditions in the wireless communication network 100 and / or specific requirements of one or more UEs 120. An active BWP defines the operating bandwidth of the UE 120 within the operating bandwidth of the serving cell. The use of BWPs enables more efficient use of the available frequency domain resources in the wireless communication network 100 because fewer frequency domain resources may be allocated to a BWP for a UE 120 (which may reduce the quantity of frequency domain resources that a UE 120 is required to monitor and reduce UE power consumption by enabling the UE to monitor fewer frequency domain resources) , leaving more frequency domain resources to be spread across multiple UEs 120. Thus, BWPs may also assist in the implementation of lower-capability (for example, RedCap) UEs 120 by facilitating the configuration of smaller bandwidths for communication by such UEs 120 and / or by facilitating reduced UE power consumption.
[0055] As used herein, a downlink signal may be or include a reference signal, control information, or data. For example, downlink reference signals include a primary synchronization signal (PSS) , a secondary SS (SSS) , an SS block (SSB) (for example, that includes a PSS, an SSS, and a physical broadcast channel (PBCH) ) , a demodulation reference signal (DMRS) , a phase tracking reference signal (PTRS) , a tracking reference signal (TRS) , and a channel state information (CSI) reference signal (CSI-RS) , among other examples. A downlink signal carrying control information or data may be transmitted via a downlink channel. Downlink channels may include one or more control channels for transmitting control information and one or more data channels for transmitting data. Downlink reference signals may be transmitted in addition to, or multiplexed with, downlink control channel communications and / or downlink data channel communications. A downlink control channel may be specifically used to transmit DCI from a network node 110 to a UE 120. DCI generally contains the information the UE 120 needs to identify RBs in a subsequent subframe and how to decode them, including a modulation and coding scheme (MCS) or redundancy version parameters. Different DCI formats carry different information, such as scheduling information in the form of downlink or uplink grants, slot format indicators (SFIs) , preemption indicators (PIs) , transmit power control (TPC) commands, hybrid automatic repeat request (HARQ) information, new data indicators (NDIs) , among other examples. A downlink data channel may be used to transmit downlink data (for example, user data associated with a UE 120) from a network node 110 to a UE 120. Downlink control channels may include physical downlink control channels (PDCCHs) , and downlink data channels may include physical downlink shared channels (PDSCHs) . Control information or data communications may be transmitted on a PDCCH and PDSCH, respectively. For example, a PDCCH can carry DCI, while a PDSCH can carry a MAC control element (MAC-CE) , an RRC message, or user data, among other examples. Each PDSCH may carry one or more transport blocks (TBs) of data.
[0056] As used herein, an uplink signal may include a reference signal, control information, or data. For example, uplink reference signals include a sounding reference signal (SRS) , a PTRS, and a DMRS, among other examples. An uplink signal carrying control information or data may be transmitted via an uplink channel. An uplink channel may include one or more control channels for transmitting control information and one or more data channels for transmitting data. Uplink reference signals may be transmitted in addition to, or multiplexed with, uplink control channel communications and / or uplink data channel communications. An uplink control channel may be specifically used to transmit uplink control information (UCI) from a UE 120 to a network node 110. An uplink data channel may be used to transmit uplink data (for example, user data associated with a UE 120) from a UE 120 to a network node 110. Uplink control channels may include physical uplink control channels (PUCCHs) , and uplink data channels may include physical uplink shared channels (PUSCHs) . Control information or data communications may be transmitted on a PUCCH and PUSCH, respectively. For example, a PUCCH can carry UCI, while a PUSCH can carry a MAC-CE, an RRC message, or user data, among other examples. UCI can include a scheduling request (SR) , HARQ feedback information (for example, a HARQ acknowledgement (ACK) indication or a HARQ negative acknowledgement (NACK) indication) , uplink power control information (for example, an uplink TPC parameter) , and / or CSI, among other examples. CSI can include a channel quality indicator (CQI) (indicative of downlink channel conditions to facilitate selection of transmission parameters, such as an MCS, by a network node 110) , a precoding matrix indicator (PMI) , a CSI-RS resource indicator (CRI) (for example, indicative of a beam used to transmit a CSI-RS) , an SS / PBCH resource block indicator (SSBRI) (for example, indicative of a beam used to transmit an SSB) , a layer indicator (LI) , a rank indicator (RI) , and / or measurement information (for example, a layer 1 (L1) -reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, among other examples) which can be used for beam management, among other examples. Each PUSCH may carry one or more TBs of data.
[0057] The information (for example, data, control information, or reference signal information) transmitted by a network node 110 to a UE 120, or vice versa, may be represented as a sequence of binary bits that are mapped (for example, modulated) to an analog signal waveform (for example, a discrete Fourier transform (DFT) -spread-orthogonal frequency division multiplexing (OFDM) (DFT-s-OFDM) waveform or a CP-OFDM waveform) that is transmitted by the network node 110 or UE 120 over a wireless communication channel. In some examples, the network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively) may select an MCS (for example, an order of quadrature amplitude modulation (QAM) , such as 64-QAM, 128-QAM, or 256-QAM, among other examples) for a downlink signal or an uplink signal. For example, the network node 110 may select an MCS for a downlink signal in accordance with UCI received from the UE 120. The network node 110 may transmit, to the UE 120, an indication of the selected MCS for the downlink signal, such as via DCI that schedules the downlink signal. As another example, the network node 110 may transmit, and the UE 120 may receive, an indication of an MCS to be applied for the one or more uplink signals, such as via DCI scheduling transmission of the one or more uplink signals.
[0058] The network node 110 or the UE 120 (such as by using the processing system 145 or the processing system 140, respectively, and / or one or more coupled modems) may perform signal processing on the information (such as filtering, amplification, modulation, digital-to-analog conversion, an IFFT operation, multiplexing, interleaving, mapping, and / or encoding, among other examples) to generate a processed signal in accordance with the selected MCS. In some examples, the network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively, and / or one or more coupled encoders or modems) may perform a channel coding operation or a forward error correction (FEC) operation to control errors in transmitted information. For example, the network node 110 or the UE 120 may perform an encoding operation to generate encoded information (such as by selectively introducing redundancy into the information, typically using an error correction code (ECC) , such as a polar code or a low-density parity-check (LDPC) code) . The network node 110 or the UE 120 (for example, using the processing system 145 and / or one or more modems) may further perform spatial processing (for example, precoding) on the encoded information to generate one or more processed or precoded signals for downlink or uplink transmission, respectively. In some examples, the network node 110 or the UE 120 may perform codebook-based precoding or non-codebook-based precoding. Codebook-based precoding may involve selecting a precoder (for example, a precoding matrix) using a codebook. For example, the network node 110 may provide precoding information indicating which precoder, defined by the codebook, is to be used by the UE 120. Non-codebook-based precoding may involve selecting or deriving a precoder based on, or otherwise associated with, one or more downlink or uplink signal measurements. The network node 110 or the UE 120 may transmit the processed downlink or uplink signals, respectively, via one or more antennas.
[0059] The network node 110 or the UE 120 may receive uplink signals or downlink signals, respectively, via one or more antennas. The network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively, and / or one or more coupled modems) may perform signal processing (for example, in accordance with the MCS) on the received uplink or downlink signals, respectively (such as filtering, amplification, demodulation, analog-to-digital conversion, an FFT operation, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, and / or decoding, among other examples) , to map the received signal (s) to a sequence of binary bits (for example, received information) that estimates the information transmitted by the network node 110 or the UE 120 via the downlink or uplink signals. The network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively, and / or a coupled decoder or one or more modems) may decode the received information (such as by using an ECC, a decoding operation, and / or an FEC operation) to detect errors and / or correct bit errors in the received information to generate decoded information. The decoded information may estimate the information transmitted via the downlink or uplink signals.
[0060] In some examples, a UE 120 and a network node 110 may perform MIMO communication. “MIMO” generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources. MIMO techniques generally exploit multipath propagation. A network node 110 and / or UE 120 may communicate using massive MIMO, multi-user MIMO, or single-user MIMO, which may involve rapid switching between beams or cells. For example, the amplitudes and / or phases of signals transmitted via antenna elements and / or sub-elements may be modulated and shifted relative to each other (such as by manipulating a phase shift, a phase offset, and / or an amplitude) to generate one or more beams, which is referred to as beamforming. For example, the network node 110b may generate one or more beams 160a, and the UE 120b may generate one or more beams 160b. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction, a directional reception of a wireless signal from a transmitting device or otherwise in a desired direction, a direction associated with a directional transmission or directional reception, a set of directional resources associated with a signal transmission or signal reception (for example, an angle of arrival, a horizontal direction, and / or a vertical direction) , a set of parameters that indicate one or more aspects of a directional signal, a direction associated with the signal, and / or a set of directional resources associated with the signal, among other examples.
[0061] MIMO may be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO may include a massive MIMO technique which may be associated with an increased (for example, “massive” ) quantity of antennas at the network node 110 and / or at the UE 120, such as in a network implementing mmWave technology. Massive MIMO may improve communication reliability by enabling a network node 110 and / or a UE 120 to communicate the same data across different propagation (or spatial) paths. In some examples, MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU-MIMO) . Some RATs may employ MIMO techniques, such as multi-TRP (mTRP) operation (including redundant transmission or reception on multiple TRPs) , reciprocity in the time domain or the frequency domain, single-frequency-network (SFN) transmission, or non-coherent joint transmission (NC-JT) .
[0062] To support MIMO techniques, the network node 110 and the UE 120 may perform one or more beam management operations, such as an initial beam acquisition operation, one or more beam refinement operations, and / or a beam recovery operation. For example, an initial beam acquisition operation may involve the network node 110 transmitting signals (for example, SSBs, CSI-RSs, or other signals) via respective beams (for example, of the beams 160a of the network node 110) and the UE 120 receiving and measuring the signal (s) via respective beams of multiple beams (for example, from the beams 160b of the UE 120) to identify a best beam (or beam pair) for communication between the UE 120 and the network node 110. For example, the UE 120 may transmit an indication (for example, in a message associated with a random access channel (RACH) operation) of a (best) identified beam of the network node 110 (for example, by indicating an SSBRI or other identifier associated with the beam) . A beam refinement operation may involve a first device (for example, the UE 120 or the network node 110) transmitting signal (s) via a subset of beams (for example, identified based on, or otherwise associated with, measurements reported as part of one or more other beam management operations) . A second device (for example, the network node 110 or the UE 120) may receive the signal (s) via a single beam (for example, to identify the best beam for communication from the subset of beams) . The beam (s) may be identified via one or more spatial parameters, such as a transmission configuration indicator (TCI) state and / or a quasi co-location (QCL) parameter, among other examples. The network node 110 and the UE 120 may increase reliability and / or achieve efficiencies in throughput, signal strength, and / or other signal properties for massive MIMO operations by performing the beam management operations.
[0063] Some aspects and techniques as described herein may be implemented, at least in part, using an artificial intelligence (AI) program (for example, referred to herein as an “AI / ML model” ) , such as a program that includes a machine learning (ML) model and / or an artificial neural network (ANN) model. The AI / ML model may be deployed at one or more devices 165 (for example, one or more network nodes 110, one or more UEs 120, and / or one or more servers, and / or one or more components of a cloud computing network, among other examples) . For example, in an deployment where AI / ML functionality is performed independently at a device 165, sometimes referred to as “overlay AI / ML” , the AI / ML model (or an instance or portion of the AI / ML model) may be deployed at a UE 120 (for example, at the processing system 140) , a network node 110 (for example, at the processing system 145) , one or more servers, and / or one or more components of a cloud computing network, among other examples. Additionally or alternatively, in a deployment where AI / ML functionality is coordinated between different devices 165, sometimes referred to as “coordinated AI / ML” , or performed at all device and network layers, sometimes referred to as “native AI / ML” , the AI / ML model (or an instance of the AI / ML model) may be deployed at multiple devices 165 (for example, a first portion of the AI / ML model may be deployed at a UE 120 and a second portion of the AI / ML model may be deployed at a network node 110) . In other examples of coordinated AI / ML and / or native AI / ML, a first AI / ML model may be deployed at a UE 120 and a second AI / ML model may be deployed at a network node 110. The AI / ML model (s) may be configured to enhance various aspects of the wireless communication network 100 (for example, to increase privacy, reliability, and / or efficient use of network bandwidth, and / or to reduce latency, among other examples) . For example, the AI / ML model (s) may be trained to identify patterns or relationships in data corresponding to the wireless communication network 100, a device, and / or an air interface, among other examples. The AI / ML model (s) may support operational decisions relating to one or more aspects associated with wireless communications devices, networks, or services.
[0064] Accordingly, in some examples, the AI / ML model (s) may enable AI-as-a-Service (for example, an end-to-end AI / ML service via a user plane) for use cases such as a self-organizing network (SON) , minimization of drive test (MDT) , quality of experience (QoE) , positioning, sensing, predictive mobility, and / or traffic prediction, among other examples. In some examples, AI-as-a-Service use cases may include measurement collection reporting by a UE 120, device selection criteria (for example, according to a geographical area where measurements are to be collected and / or UE capabilities to be used to collected measurements) , and / or reporting configurations (for example, reporting parameters such as location, time, and / or sensor information, among other examples) . Additionally or alternatively, the AI / ML model (s) may enable AI / ML procedures (for example, RAN-triggered service establishment, configuration, inferencing using UE-side and / or network-side models, performance monitoring and / or management, and / or capability signaling, among other examples) . Additionally or alternatively, the AI / ML model (s) may enable RAN-based AI / ML services via one or more application program interfaces (APIs) and / or management interfaces for use cases such as beam management, radio resource monitoring (RRM) relaxation, mobility prediction, load prediction, network energy savings, and / or coverage and capacity improvements, among other examples) .
[0065] In some aspects, a UE (e.g., a UE 120) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may receive an indication that indicates a codeword across a plurality of flexible spectrum integration subbands (FSI-SBs) for a transport block and a first plurality of modulation orders with a first single effective coding rate; and communicate the transport block over the plurality of FSI-SBs with the first single effective coding rate. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0066] In some aspects, a network entity (e.g., a network node 110) may include a communication manager 155. As described in more detail elsewhere herein, the communication manager 155 may transmit an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate; and communicate the transport block over the plurality of FSI-SBs with the single effective coding rate. Additionally, or alternatively, the communication manager 155 may perform one or more other operations described herein.
[0067] Fig. 2 is a diagram illustrating an example disaggregated network node architecture 200, in accordance with the present disclosure. One or more components of the example disaggregated network node architecture 200 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110) . The disaggregated network node architecture 200 may include a CU 210 that can communicate directly with a core network 220 via a backhaul link, or that can communicate indirectly with the core network 220 via one or more disaggregated control units, such as a non-real-time (Non-RT) RAN intelligent controller (RIC) 250 associated with a Service Management and Orchestration (SMO) Framework 260 and / or a near-real-time (Near-RT) RIC 270 (for example, via an E2 link) . The CU 210 may communicate with one or more DUs 230 via respective midhaul links, such as via F1 interfaces. Each of the DUs 230 may communicate with one or more RUs 240 via respective fronthaul links. Each of the RUs 240 may communicate with one or more UEs 120 via respective RF access links. In some deployments, a UE 120 may be simultaneously served by multiple RUs 240.
[0068] Each of the components of the disaggregated network node architecture 200, including the CUs 210, the DUs 230, the RUs 240, the Near-RT RICs 270, the Non-RT RICs 250, and the SMO Framework 260, may include one or more interfaces or may be coupled with one or more interfaces for receiving or transmitting signals, such as data or information, via a wired or wireless transmission medium.
[0069] In some aspects, the CU 210 may be logically split into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. A CU-UP unit may communicate bidirectionally with a CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 210 may be deployed to communicate with one or more DUs 230, as necessary, for network control and signaling. Each DU 230 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 240. For example, a DU 230 may host various layers, such as an RLC layer, a MAC layer, or one or more PHY layers, such as one or more high PHY layers or one or more low PHY layers. Each layer (which also may be referred to as a module) may be implemented with an interface for communicating signals with other layers (and modules) hosted by the DU 230, or for communicating signals with the control functions hosted by the CU 210. Each RU 240 may implement lower layer functionality. In some aspects, real-time and non-real-time aspects of control and user plane communication with the RU (s) 240 may be controlled by the corresponding DU 230.
[0070] The SMO Framework 260 may support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 260 may support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface, such as an O1 interface. For virtualized network elements, the SMO Framework 260 may interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 290) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface, such as an O2 interface. A virtualized network element may include, but is not limited to, a CU 210, a DU 230, an RU 240, a non-RT RIC 250, and / or a Near-RT RIC 270. In some aspects, the SMO Framework 260 may communicate with a hardware aspect of a 4G RAN, a 5G NR RAN, and / or a 6G RAN, such as an open eNB (O-eNB) 280, via an O1 interface. Additionally or alternatively, the SMO Framework 260 may communicate directly with each of one or more RUs 240 via a respective O1 interface. In some deployments, this configuration can enable each DU 230 and the CU 210 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0071] The Non-RT RIC 250 may include or may implement a logical function that enables non-real-time control and optimization of RAN elements and resources, AI / ML workflows including model training and updates, and / or policy-based guidance of applications and / or features in the Near-RT RIC 270. The Non-RT RIC 250 may be coupled to or may communicate with (such as via an A1 interface) the Near-RT RIC 270. The Near-RT RIC 270 may include or may implement a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions via an interface (such as via an E2 interface) connecting one or more CUs 210, one or more DUs 230, and / or an O-eNB 280 with the Near-RT RIC 270.
[0072] In some aspects, to generate AI / ML models to be deployed in the Near-RT RIC 270, the Non-RT RIC 250 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 270 and may be received at the SMO Framework 260 or the Non-RT RIC 250 from non-network data sources or from network functions. In some examples, the Non-RT RIC 250 or the Near-RT RIC 270 may tune RAN behavior or performance. For example, the Non-RT RIC 250 may monitor long-term trends and patterns for performance and may employ AI / ML models to perform corrective actions via the SMO Framework 260 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
[0073] The network node 110, the processing system 145 of the network node 110, the UE 120, the processing system 140 of the UE 120, the CU 210, the DU 230, the RU 240, or any other component (s) of Fig. 1 and / or Fig. 2 may implement one or more techniques or perform one or more operations associated with indicating a codeword for transmission across subbands, as described in more detail elsewhere herein. For example, the processing system 145 of the network node 110, the processing system 140 of the UE 120, the CU 210, the DU 230, or the RU 240 may perform or direct operations of, for example, process 1000 of Fig. 10, process 1100 of Fig. 11, or other processes as described herein (alone or in conjunction with one or more other processors) . Memory of the network node 110 may store data and program code (or instructions) for the network node 110, the CU 210, the DU 230, or the RU 240. In some examples, the memory of the network node 110 may store data relating to a UE 120, such as RRC state information or a UE context. Memory of a UE 120 may store data and program code (or instructions) for the UE 120, such as context information. In some examples, the memory of the UE 120 or the memory of the network node 110 may include a non-transitory computer-readable medium storing a set of instructions for wireless communication. For example, the set of instructions, when executed by one or more processors (for example, of the processing system 145 or the processing system 140) of the network node 110, the UE 120, the CU 210, the DU 230, or the RU 240, may cause the one or more processors to perform process 1000 of Fig. 10, process 1100 of Fig. 11, or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.
[0074] In some aspects, a UE (e.g., a UE 120) includes means for receiving an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate; and / or means for communicating the transport block over the plurality of FSI-SBs with the first single effective coding rate. The means for the UE to perform operations described herein may include, for example, one or more of communication manager 150, processing system 140, a radio, one or more RF chains, one or more transceivers, one or more antennas, one or more modems, a reception component (for example, reception component 1202 depicted and described in connection with Fig. 12) , and / or a transmission component (for example, transmission component 1204 depicted and described in connection with Fig. 12) , among other examples.
[0075] In some aspects, a network entity (e.g., a network node 110) includes means for transmitting an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate; and / or means for communicating the transport block over the plurality of FSI-SBs with the single effective coding rate. In some aspects, the means for the network entity to perform operations described herein may include, for example, one or more of communication manager 155, processing system 145, a radio, one or more RF chains, one or more transceivers, one or more antennas, one or more modems, a reception component (for example, reception component 1302 depicted and described in connection with Fig. 13) , and / or a transmission component (for example, transmission component 1304 depicted and described in connection with Fig. 13) , among other examples.
[0076] Fig. 3 is a diagram illustrating an example 300 of FSI, in accordance with the present disclosure.
[0077] A UE may communicate (transmit or receive) on one or more component carriers (CCs) . The UE may mix and match resources of CCs from different frequency bands to form a virtual cell (vCell 302) , such as frequency bands 1, 2, and 3 in virtual cell 300 of Fig. 3, where each frequency band may comprise one or more CCs (e.g., in Fig. 3, frequency bands 1 and 3 comprise one CC, while frequency band 2 comprises two CCs) . In single-cell vCell operation, a single TB (encoded in a codeword) in downlink or uplink may be scheduled over a set of non-contiguous resources. A non-contiguous BWP (vBWP) can be configured to span over the set of aggregated resources across different physical CCs. In downlink (e.g., with CP-OFDM waveform) , one TB may be mapped to multiple non-contiguous sections of the spectrum. In uplink (e.g., with DFT-s-OFDM waveform) , there are some peak-to-average power (PAPR) considerations regarding non-contiguous resource mapping. However, if a UE has multiple power amplifiers (PAs) , each connected to one contiguous segment, one TB may be mapped to a non-contiguous set of resources without PAPR impact.
[0078] A single-TB design may provide additional diversity for low bands (generally small bandwidth frequency duplex domain (FDD) bands) . Bandwidth adaptation via BWP mechanisms (L1 operation) may be faster than CA with a secondary cell (Scell) addition / release (upper-layer operation) .
[0079] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
[0080] Fig. 4 is a diagram illustrating an example 400 of a single TB across CCs, in accordance with the present disclosure.
[0081] Carrier aggregation involves a transmission over multiple frequency blocks or CCs. A single TB, via FSI with each CB distributed in different (physical) CCs, can have UPT improvement over legacy CA, due to frequency-domain channel diversity for the CB. This may be the case if the CCs are from different bands (e.g., high and low bands) . Scheduled (physical) transmissions on each CC from different bands may be adapted independently of the CC’s own channel / interference conditions. Rank and MCS may be independent on each CC for link adaptation.
[0082] The gain of FSI over legacy CA may not hold, if FSI uses a common rank and MCS across all CCs (due to a link adaptation mismatch, an underutilized link, or a link that is too aggressive for some of the CCs) . Legacy CA has a separate TB and CB on each CC, where each CC has an individual rank and MCS. Therefore, the FSI involves a CC-specific rank and modulation order. One CB is associated with one (effective) coding rate. Example 400 shows a single TB 406 across non-contiguous resources, such as CC 402 and CC 404. There may be one or more CBs for the TB 406. The TB 406 may be encoded into one or more codewords (CWs) .
[0083] As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4.
[0084] Fig. 5 is a diagram illustrating an example 500 of an MCS index table of modulation orders, in accordance with the present disclosure. The MCS index table in example 500 includes different modulation orders and different coding rates for each modulation order. The MCS index table can be optimized for a single CB. A high coding rate and a low modulation order may not be useful, and similarly, a low coding rate and a high modulation order may not be useful. Therefore, if there are multiple modulation orders, such as 4, 6, and 8, a UE does not have information for how to communicate (e.g., on a physical shared channel for either uplink or downlink (PxSCH) ) a TB in a virtual BWP or VCell across non-contiguous resources (e.g., CCs) with the multiple modulation orders. Without this information, the TB may be degraded, which reduces throughput.
[0085] As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with regard to Fig. 5.
[0086] Fig. 6 is a diagram illustrating an example 600 of TB transmission, in accordance with the present disclosure.
[0087] Example 600 shows a virtual BWP / vCell 602 with multiple FSI subbands (FSI-SBs) , where each FSI-SB may include one CC or a group of CCs, such as CC 604, CC 606, CC 608, and CC 610. A UE may be configured for PxSCH transmission of a TB in the vBWP / vCell 602 across the multiple FSI-SBs (and with multiple modulation orders) . According to various aspects described herein, a network entity may transmit an indication that indicates a codeword (i.e., for the TB) across S > 1 FSI-SBs and indicates S'modulation orders with a single effective coding rate. In some aspects, S ≥S'> 1, and multiple FSI-SBs may share a common indication. In an example, FSI-SB2 and FSI-SB3 may be close to each other and may share a modulation order. FSI-SB1 may use a different modulation order. That is, a single effective coding rate may be used for a TB (e.g., CW) across the entire virtual BWP.
[0088] The UE may communicate (transmit or receive) the TB in the vCell 602 using the indicated codeword over the multiple FSI-SBs with the single effective coding rate. By indicating a single effective coding rate for a codeword (of the TB) across multiple FSI-SBs and with multiple modulation orders, the UE may have information to transmit the TB effectively with a single coding rate and without degradation. As a result, the UE may conserve signaling resources and increase throughput.
[0089] The single effective coding rate may be indicated implicitly or explicitly. In some aspects, there may be S'MCS indications, each with a nominal coding rate. The UE may determine the effective coding rate Reff implicitly according to data quantities on the S FSI-SBs. The data quantity of each FSI-SB may be determined by the quantity of resource elements (REs) and the quantity of layers of the FSI-SB, and where NRE, i is the quantity of REs of the i-th FSI-SB, vi is quantity of layers of the i-th FSI-SB; Ri is the nominal coding rate associated with the i-th FSI-SB indicated by the i-th MCS indication, and Qi is the modOrder of the i-th FSI-SB indicated by the i-th MCS indication. Accordingly, NRE, i·Qi·vi is the encoded bit length associated with the i-th FSI-SB, and is the total encoded bit length of the entire codeword. The UE may determine the size of the TB based at least in part on a summation according to each individual Ri along with each MCS indication: The total information bit length divided by the total bit length may result in an effective coding rate.
[0090] In some aspects, the indication may explicitly indicate the single effective coding rate. The UE may use one or more of the S'MCS indications as the single effective coding rate, such as a first / last one indicated, a rate associated with the highest / lowest modulation order, or a rate associated with a specified middle-ground-order or middle set of modulation orders (e.g., 16QAM or 64QAM) . In some aspects, the UE may use an average coding rate of S'MCS indications irrespective of a data quantity on each FSI-SB. The average coding rate may be, for example, Ri or If the indication is explicit, the TB size may be based at least in part on (firstly have explicit Reff indicated, then the UE determines size, based at least in part on the explicitly indicated Reff) . If the indication is implicit, to determine the TB size without obtaining the explicit effective coding rate.
[0091] As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with regard to Fig. 6.
[0092] Fig. 7 is a diagram illustrating an example 700 associated with indicating a coding rate, in accordance with the present disclosure. As shown in Fig. 7, a network entity 710 (e.g., network node 110) and a UE 720 may communicate with one another via a wireless network (e.g., wireless communication network 100) .
[0093] As shown by reference number 725, the network entity 710 may transmit (and the UE 720 may receive) an indication of a codeword and a plurality of modulation orders with a single effective coding rate. In some aspects, the single effective coding rate may be based at least in part on data quantities of the FSI-SBs.
[0094] As shown by reference number 730, the UE 720 may communicate (e.g., transmit or receive) a TB using the codeword and the single effective coding rate across multiple FSI-SBs. In some aspects, the quantity of the plurality of FSI-SBs is equal to or greater than the quantity of the plurality of modulation orders.
[0095] A legacy MCS is 5-bits and thus 5S'bits may be used for an indication of S > 1 FSI-SBs. Alternatively, in some aspects, the effective coding rate Reff may be decoupled from the S'modulation orders in the indication, which may be 2S'+ 4 bits or 2S'+ 5 bits. There may be 2 bits for a modulation order (modOrder) from, for example, {QPSK, 16QAM, 64QAM, 256QAM} , while there may be 4 or 5 bits for the effective coding rate. The TB size may be determined according to
[0096] In some aspects, the alphabet (set of possible values) of the effective coding rate Reff may be set independently of a combination of the modulation orders (e.g. a super-set of coding rate alphabet 732) . Analogous to a legacy MCS table, several coding rate tables may be defined (for better / worse channel with mainly lower / higher coding rates, or very low coding rates for high-reliability use cases) .
[0097] In some aspects, the alphabet of Reff may be based at least in part on the combination of modulation orders that is a subset of coding rates from the super-set. For example, the alphabet-subset for S'= 2 with a first modulation order combination {256QAM, 64QAM} may be different from a second modulation order combination {QPSK, 16QAM} or {QPSK, QPSK} . In addition, in some aspects, the alphabet of Reff may be based at least in part on a ratio of data quantities of the S FSI-SBs. The data quantity may be determined by the quantity of REs and the quantity of layers (or additionally, the modulation order) of each corresponding FSI-SB. For example, with an S'= S = 2 modulation order combination {16QAM, 64QAM} , the alphabet-subset may be different depending on whether 16QAM or 64QAM is the majority data quantity (data quantity NRE, i·vi, or encoded bit length NRE, i·Qi·vi, associated with 16 / 64-QAM) .
[0098] In some aspects, the FSI-SBs sharing a same modulation order indication may be configured. For example, FSI-SB2 and FSI-SB3 may share a same modulation order / MCS indication, while FSI-SB1 may be associated with another separate modulation order / MCS indication. Therefore, there may be S'= 2 modulation order / MCS indications for S = 3 FSI-SBs.
[0099] In some aspects, as shown by reference number 735, the network entity 710 may transmit (and the UE 720 may receive) a CSI configuration that indicates how the UE is to measure and report CSI, which may including PMIs, CQIs, RIs, etc. As shown by reference number 740, the UE 720 may transmit (and the network entity 710 may receive) a CSI report that is in accordance with the CSI configuration and that indicates second modulation orders, a second single effective coding rate (i.e., CQIs) , and RIs. This may involve partial FSI-SBs and partial modulation orders.
[0100] In some scenarios, no coding rate is indicated for a HARQ retransmission (since a retransmission does not need to determine the TB size) . A different redundancy version (RV) than an RV of a previous new transmission can be indicated for a coding incremental redundancy (IR) combining gain. For a retransmission based on a code block group (CBG) , DCI may indicate CBG transmission information (CBGTI) for partial CBs of a TB to retransmit (e.g., configured as an 8-bit bitmap for single- / both-CW (TB) ) . CBG flushing-out information (CBGFI) may indicate whether the previously transmitted CBG is corrupted, or whether the retransmission can be combined with early transmissions (e.g., via 1 bit for all CBGs) .
[0101] Since the modulation order and the effective coding rate may be decoupled in a DCI indication (e.g., separate fields) , in some aspects, for retransmission, the coding rate field may be re-interpreted for other purposes, including for an RV, CBGTI, and / or CBGFI. This may conserve signaling resources.
[0102] As indicated above, Fig. 7 is provided as an example. Other examples may differ from what is described with respect to Fig. 7.
[0103] Fig. 8 is a diagram illustrating an example 800 of CQI and RI reports, in accordance with the present disclosure.
[0104] In some aspects, for a wideband-CQI report (e.g., over the entire vBWP comprising S > 1 FSI-SBs) , the wideband CQI report may include S'> 1 modulation orders and a single effective coding rate (while RI is also per modulation order reported (e.g. per-FSI-SB or per-FSI-SB-combo) –S'> 1 RIs) . In some aspects, a CQI report may be associated with one or more combination (s) of s > 1 (s< S) FSI-SBs (i.e., partial wideband) , and include CQI s'≤ s modulation orders (and s'RIs) and a single effective coding rate. For example, S = 3; s = 2 with {FSI-SB1, FSI-SB2} and s'= 2, or s = 2 with {FSI-SB1, FSI-SB3} and s'= 2, or s = 2 with {FSI-SB2, FSI-SB3} and s'= 1.
[0105] In some aspects, a subband-CQI report may include a PMI- / CQI-SB definition, such as per PMI- / CQI-SB modulation order and coding rate, and per PMI- / CQI-SB RI. Example 800 shows PMI-SBs and CQI-SBs. The network entity may combine and obtain an overall effective coding rate with S or S'modulation orders for a potential PDSCH with CB / TB across FSI-SBs.
[0106] As indicated above, Fig. 8 is provided as an example. Other examples may differ from what is described with regard to Fig. 8.
[0107] Fig. 9 is a diagram illustrating an example 900 of edge alignment, in accordance with the present disclosure.
[0108] A physical resource block group (PRG) may be defined for PDSCH PRB bundling, and within a PRG, a UE may expect a constant precoding (for DMRS channel estimation) . A PRG edge may be aligned with a PMI- / CQI-SB edge. A PRG (e.g., 2 or 4 RBs) may have a finer granularity than a PMI- / CQI-SB. A PMI- / CQI-SB may be defined or anchored on a common resource block (CRB) 0, with an SB size denoted as The first PMI- / CQI-SB size may be given by and the last subband size may be given by mod if mod and if mod where is the start PRB of a physical or virtual BWP i, and is the size (in quantity of PRBs) of a physical or virtual BWP i. A PRG (of BWP i) may be defined or anchored on a CRB, with a PRG size denoted as P′BWP, i. The first PRG size may be given by mod and the last PRG size may be given by mod P′BWP, i if mod P′BWP, i≠0. The last PRG size may be P′BWP, i if mod P′BWP, i=0. A BWP may be anchored on a common resource block (CRB) 0 (i.e., is a quantity of PRBs in relative to CRB 0) .
[0109] In some aspects, to guarantee boundary alignment, the frequency locations of an FSI-SB, a PMI- / CQI-SB, and a PRG may all be defined or anchored on a CRB (e.g. CRB 0) . Example 900 shows edge alignment between an FSI-SB, a PMI- / CQI-SB, and a PRG. The FSI-SB boundary 902 may also be the boundary of a PMI- / CQI-SB or a PRG. Although, for a frequency-domain resource allocation (FDRA) that is, for example, based on a starting and length indicator value (SLIV) of a PDSCH, the UE may only need a relative frequency location (PRB indices) within the vBWP.
[0110] As indicated above, Fig. 9 is provided as an example. Other examples may differ from what is described with regard to Fig. 9.
[0111] Fig. 10 is a diagram illustrating an example process 1000 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 1000 is an example where the apparatus or the UE (e.g., UE 720) performs operations associated with indication for a codeword and an effective coding rate across FSI-SBs.
[0112] As shown in Fig. 10, in some aspects, process 1000 may include receiving an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate (block 1010) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206, depicted in Fig. 12) may receive an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate, as described above.
[0113] As further shown in Fig. 10, in some aspects, process 1000 may include communicating the transport block over the plurality of FSI-SBs with the first single effective coding rate (block 1020) . For example, the UE (e.g., using reception component 1202, transmission component 1204, and / or communication manager 1206, depicted in Fig. 12) may communicate the transport block over the plurality of FSI-SBs with the first single effective coding rate, as described above.
[0114] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0115] In a first aspect, a quantity of the plurality of FSI-SBs is equal to or greater than a quantity of the first plurality of modulation orders.
[0116] In a second aspect, alone or in combination with the first aspect, the first single effective coding rate is based at least in part on data quantities of the FSI-SBs.
[0117] In a third aspect, alone or in combination with one or more of the first and second aspects, the indication indicates the first single effective coding rate.
[0118] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the indication is associated with a highest or a lowest modulation order of the first plurality of modulation orders.
[0119] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the indication is associated with a modulation order in a middle set of the first plurality of modulation orders.
[0120] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the first single effective coding rate is based at least in part on an average coding rate of the first plurality of modulation orders.
[0121] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, boundaries of the plurality of FSI-SBs are anchored to a boundary of a CRB.
[0122] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the plurality of modulation orders and the first single effective coding rate are indicated in separate fields of the indication.
[0123] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, for retransmission, a coding rate field is used for an information indication other than the first single effective coding rate, and the information indication includes one or more of an RV, CBGTI, or CBGFI.
[0124] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, an alphabet of the first single effective coding rate is independent of a combination of modulation orders of the first plurality of modulation orders.
[0125] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, an alphabet of the first single effective coding rate is based at least in part on a combination of modulation orders of the first plurality of modulation orders or based at least in part on a ratio of data quantities of the plurality of FSI-SBs.
[0126] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, more than one of the plurality of FSI-SBs shares the indication with respect to one of the first plurality of modulation orders.
[0127] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, process 1000 includes receiving a channel state information (CSI) configuration that indicates channel quality indicator (CQI) reporting of a second plurality of modulation orders, a second single effective coding rate, and a plurality of rank indicators, and transmitting a CSI report that indicates the second plurality of modulation orders, the second single effective coding rate, and the plurality of rank indicators.
[0128] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the CSI report is associated with one or more combinations of FSI-SBs.
[0129] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the CSI report is associated with a plurality of precoding matrix indicator subbands (PMI-SBs) or a plurality of CQI subbands (CQI-SBs) , and boundaries of the plurality of FSI-SBs are boundaries of the plurality of PMI-SBs or boundaries of the plurality of CQI-SBs.
[0130] In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the transport block is communicated via a plurality of PRGs, and boundaries of the plurality of FSI-SBs are boundaries of the plurality of PRGs.
[0131] Although Fig. 10 shows example blocks of process 1000, in some aspects, process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 10. Additionally, or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
[0132] Fig. 11 is a diagram illustrating an example process 1100 performed, for example, at a network entity or an apparatus of a network entity, in accordance with the present disclosure. Example process 1100 is an example where the apparatus or the network entity (e.g., network entity 710) performs operations associated with indication for a codeword and an effective coding rate across FSI-SBs.
[0133] As shown in Fig. 11, in some aspects, process 1100 may include transmitting an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate (block 1110) . For example, the network entity (e.g., using transmission component 1304 and / or communication manager 1306, depicted in Fig. 13) may transmit an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate, as described above.
[0134] As further shown in Fig. 11, in some aspects, process 1100 may include communicating the transport block over the plurality of FSI-SBs with the single effective coding rate (block 1120) . For example, the network entity (e.g., using reception component 1302, transmission component 1304, and / or communication manager 1306, depicted in Fig. 13) may communicate the transport block over the plurality of FSI-SBs with the single effective coding rate, as described above.
[0135] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0136] In a first aspect, a quantity of the plurality of FSI-SBs is equal to or greater than a quantity of the plurality of modulation orders.
[0137] In a second aspect, alone or in combination with the first aspect, the single effective coding rate is based at least in part on data quantities of the FSI-SBs.
[0138] Although Fig. 11 shows example blocks of process 1100, in some aspects, process 1100 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 11. Additionally, or alternatively, two or more of the blocks of process 1100 may be performed in parallel.
[0139] Fig. 12 is a diagram of an example apparatus 1200 for wireless communication, in accordance with the present disclosure. The apparatus 1200 may be a UE, or a UE may include the apparatus 1200. In some aspects, the apparatus 1200 includes a reception component 1202, a transmission component 1204, and / or a communication manager 1206, which may be in communication with one another (for example, via one or more buses and / or one or more other components) . In some aspects, the communication manager 1206 is the communication manager 150 described in connection with Fig. 1. As shown, the apparatus 1200 may communicate with another apparatus 1208, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1202 and the transmission component 1204. The communication manager 1206 may be included in, or implemented via, a processing system (for example, the processing system 140 described in connection with Fig. 1) of the UE.
[0140] In some aspects, the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs. 1-9. Additionally, or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as process 1000 of Fig. 10. In some aspects, the apparatus 1200 and / or one or more components shown in Fig. 12 may include one or more components of the UE described in connection with Fig. 1. Additionally, or alternatively, one or more components shown in Fig. 12 may be implemented within one or more components described in connection with Fig. 1. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0141] The reception component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1208. The reception component 1202 may provide received communications to one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may include one or more components of the UE described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the UE.
[0142] The transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1208. In some aspects, one or more other components of the apparatus 1200 may generate communications and may provide the generated communications to the transmission component 1204 for transmission to the apparatus 1208. In some aspects, the transmission component 1204 may perform signal processing on the generated communications, and may transmit the processed signals to the apparatus 1208. In some aspects, the transmission component 1204 may include one or more components of the UE described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the UE described in connection with Fig. 1. In some aspects, the transmission component 1204 may be co-located with the reception component 1202.
[0143] The communication manager 1206 may support operations of the reception component 1202 and / or the transmission component 1204. For example, the communication manager 1206 may receive information associated with configuring reception of communications by the reception component 1202 and / or transmission of communications by the transmission component 1204. Additionally, or alternatively, the communication manager 1206 may generate and / or provide control information to the reception component 1202 and / or the transmission component 1204 to control reception and / or transmission of communications.
[0144] The reception component 1202 may receive an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a first plurality of modulation orders with a first single effective coding rate. The reception component 1202 and / or the transmission component 1204 may communicate the transport block over the plurality of FSI-SBs with the first single effective coding rate.
[0145] The reception component 1202 may receive a CSI configuration that indicates CQI reporting of a second plurality of modulation orders, a second single effective coding rate, and a plurality of rank indicators. The transmission component 1204 may transmit a CSI report that indicates the second plurality of modulation orders, the second single effective coding rate, and the plurality of rank indicators.
[0146] The number and arrangement of components shown in Fig. 12 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 12. Furthermore, two or more components shown in Fig. 12 may be implemented within a single component, or a single component shown in Fig. 12 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 12 may perform one or more functions described as being performed by another set of components shown in Fig. 12.
[0147] Fig. 13 is a diagram of an example apparatus 1300 for wireless communication, in accordance with the present disclosure. The apparatus 1300 may be a network entity, or a network entity may include the apparatus 1300. In some aspects, the apparatus 1300 includes a reception component 1302, a transmission component 1304, and / or a communication manager 1306, which may be in communication with one another (for example, via one or more buses and / or one or more other components) . In some aspects, the communication manager 1306 is the communication manager 155 described in connection with Fig. 1. As shown, the apparatus 1300 may communicate with another apparatus 1308, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1302 and the transmission component 1304. The communication manager 1306 may be included in, or implemented via, a processing system (for example, the processing system 145 described in connection with Fig. 1) of the network entity.
[0148] In some aspects, the apparatus 1300 may be configured to perform one or more operations described herein in connection with Figs. 1-8. Additionally, or alternatively, the apparatus 1300 may be configured to perform one or more processes described herein, such as process 1100 of Fig. 11. In some aspects, the apparatus 1300 and / or one or more components shown in Fig. 13 may include one or more components of the network entity described in connection with Fig. 1. Additionally, or alternatively, one or more components shown in Fig. 13 may be implemented within one or more components described in connection with Fig. 1. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0149] The reception component 1302 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1308. The reception component 1302 may provide received communications to one or more other components of the apparatus 1300. In some aspects, the reception component 1302 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 1300. In some aspects, the reception component 1302 may include one or more components of the network entity described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the network entity.
[0150] The transmission component 1304 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1308. In some aspects, one or more other components of the apparatus 1300 may generate communications and may provide the generated communications to the transmission component 1304 for transmission to the apparatus 1308. In some aspects, the transmission component 1304 may perform signal processing on the generated communications, and may transmit the processed signals to the apparatus 1308. In some aspects, the transmission component 1304 may include one or more components of the network entity described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the network entity described in connection with Fig. 1. In some aspects, the transmission component 1304 may be co-located with the reception component 1302.
[0151] The communication manager 1306 may support operations of the reception component 1302 and / or the transmission component 1304. For example, the communication manager 1306 may receive information associated with configuring reception of communications by the reception component 1302 and / or transmission of communications by the transmission component 1304. Additionally, or alternatively, the communication manager 1306 may generate and / or provide control information to the reception component 1302 and / or the transmission component 1304 to control reception and / or transmission of communications.
[0152] The transmission component 1304 may transmit an indication that indicates a codeword across a plurality of FSI-SBs for a transport block and a plurality of modulation orders with a single effective coding rate. The reception component 1302 and / or the transmission component 1304 may communicate the transport block over the plurality of FSI-SBs with the single effective coding rate.
[0153] The number and arrangement of components shown in Fig. 13 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 13. Furthermore, two or more components shown in Fig. 13 may be implemented within a single component, or a single component shown in Fig. 13 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 13 may perform one or more functions described as being performed by another set of components shown in Fig. 13.
[0154] The following provides an overview of some Aspects of the present disclosure:
[0155] Aspect 1: A method of wireless communication performed by a user equipment (UE) , comprising: receiving an indication that indicates a codeword across a plurality of flexible spectrum integration subbands (FSI-SBs) for a transport block and a first plurality of modulation orders with a first single effective coding rate; and communicating the transport block over the plurality of FSI-SBs with the first single effective coding rate.
[0156] Aspect 2: The method of Aspect 1, wherein a quantity of the plurality of FSI-SBs is equal to or greater than a quantity of the first plurality of modulation orders.
[0157] Aspect 3: The method of any of Aspects 1-2, wherein the first single effective coding rate is based at least in part on data quantities of the FSI-SBs.
[0158] Aspect 4: The method of any of Aspects 1-2, wherein the indication indicates the first single effective coding rate.
[0159] Aspect 5: The method of any of Aspects 1-4, wherein the indication is associated with a highest or a lowest modulation order of the first plurality of modulation orders.
[0160] Aspect 6: The method of any of Aspects 1-4, wherein the indication is associated with a modulation order in a middle set of the first plurality of modulation orders.
[0161] Aspect 7: The method of any of Aspects 1-4, wherein the first single effective coding rate is based at least in part on an average coding rate of the first plurality of modulation orders.
[0162] Aspect 8: The method of any of Aspects 1-7, wherein boundaries of the plurality of FSI-SBs are anchored to a boundary of a common resource block.
[0163] Aspect 9: The method of any of Aspects 1-8, wherein the plurality of modulation orders and the first single effective coding rate are indicated in separate fields of the indication.
[0164] Aspect 10: The method of Aspect 9, wherein for retransmission, a coding rate field is used for an information indication other than the first single effective coding rate, and wherein the information indication includes one or more of: a redundancy version (RV) , Code Block Group Transmission Information (CBGTI) , or Code Block Group Flushing-out Information (CBGFI) .
[0165] Aspect 11: The method of any of Aspects 1-10, wherein an alphabet of the first single effective coding rate is independent of a combination of modulation orders of the first plurality of modulation orders.
[0166] Aspect 12: The method of any of Aspects 1-10, wherein an alphabet of the first single effective coding rate is based at least in part on a combination of modulation orders of the first plurality of modulation orders or based at least in part on a ratio of data quantities of the plurality of FSI-SBs.
[0167] Aspect 13: The method of any of Aspects 1-12, wherein more than one of the plurality of FSI-SBs shares the indication with respect to one of the first plurality of modulation orders.
[0168] Aspect 14: The method of any of Aspects 1-13, further comprising: receiving a channel state information (CSI) configuration that indicates channel quality indicator (CQI) reporting of a second plurality of modulation orders, a second single effective coding rate, and a plurality of rank indicators; and transmitting a CSI report that indicates the second plurality of modulation orders, the second single effective coding rate, and the plurality of rank indicators.
[0169] Aspect 15: The method of Aspect 14, wherein the CSI report is associated with one or more combinations of FSI-SBs.
[0170] Aspect 16: The method of Aspect 14, wherein the CSI report is associated with a plurality of precoding matrix indicator subbands (PMI-SBs) or a plurality of CQI subbands (CQI-SBs) , and boundaries of the plurality of FSI-SBs are boundaries of the plurality of PMI-SBs or boundaries of the plurality of CQI-SBs.
[0171] Aspect 17: The method of any of Aspects 1-16, wherein the transport block is communicated via a plurality of physical resource block groups (PRGs) , and wherein boundaries of the plurality of FSI-SBs are boundaries of the plurality of PRGs.
[0172] Aspect 18: A method of wireless communication performed by a network entity, comprising: transmitting an indication that indicates a codeword across a plurality of flexible spectrum integration subbands (FSI-SBs) for a transport block and a plurality of modulation orders with a single effective coding rate; and communicating the transport block over the plurality of FSI-SBs with the single effective coding rate.
[0173] Aspect 19: The method of Aspect 18, wherein a quantity of the plurality of FSI-SBs is equal to or greater than a quantity of the plurality of modulation orders.
[0174] Aspect 20: The method of any of Aspects 18-19, wherein the single effective coding rate is based at least in part on data quantities of the FSI-SBs.
[0175] Aspect 21: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method of one or more of Aspects 1-20.
[0176] Aspect 22: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors configured to cause the device to perform the method of one or more of Aspects 1-20.
[0177] Aspect 23: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-20.
[0178] Aspect 24: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-20.
[0179] Aspect 25: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-20.
[0180] Aspect 26: A device for wireless communication, the device comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-20.
[0181] Aspect 27: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to cause the device to perform the method of one or more of Aspects 1-20.
[0182] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects. No element, act, or instruction described herein should be construed as critical or essential unless explicitly described as such.
[0183] It will be apparent that systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. The actual specialized control hardware or software used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein. A component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.
[0184] As used herein, the articles “a” and “an” are intended to refer to one or more items and may be used interchangeably with “one or more” or “at least one. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or “a single one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” “comprise, ” “comprising, ” “include” and “including, ” and derivatives thereof or similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A may also have B) . Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or, ” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of” ) . As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (for example, a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c) .
[0185] As used herein, the term “determine” or “determining” encompasses a wide variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, estimating, investigating, looking up (such as via looking up in a table, a database, or another data structure) , searching, inferring, ascertaining, and / or measuring, among other possibilities. Also, “determining” can include receiving (such as receiving information) , accessing (such as accessing data stored in memory) or transmitting (such as transmitting information) , among other possibilities. Additionally, “determining” can include resolving, selecting, obtaining, choosing, establishing, and / or other such similar actions.
[0186] As used herein, the phrase “based on” is intended to mean “based at least in part on” or “based on or otherwise in association with” unless explicitly stated otherwise. As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.
[0187] Even though particular combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the scope of all aspects described herein. Many of these features may be combined in ways not specifically recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.
Claims
1.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the UE to:receive an indication that indicates a codeword across a plurality of flexible spectrum integration subbands (FSI-SBs) for a transport block and a first plurality of modulation orders with a first single effective coding rate; andcommunicate the transport block over the plurality of FSI-SBs with the first single effective coding rate.2.The apparatus of claim 1, wherein a quantity of the plurality of FSI-SBs is equal to or greater than a quantity of the first plurality of modulation orders.3.The apparatus of claim 1, wherein the first single effective coding rate is based at least in part on data quantities of the FSI-SBs.4.The apparatus of claim 1, wherein the indication indicates the first single effective coding rate.5.The apparatus of claim 1, wherein the indication is associated with a highest or a lowest modulation order of the first plurality of modulation orders.6.The apparatus of claim 1, wherein the indication is associated with a modulation order in a middle set of the first plurality of modulation orders.7.The apparatus of claim 1, wherein the first single effective coding rate is based at least in part on an average coding rate of the first plurality of modulation orders.8.The apparatus of claim 1, wherein boundaries of the plurality of FSI-SBs are anchored to a boundary of a common resource block.9.The apparatus of claim 1, wherein the plurality of modulation orders and the first single effective coding rate are indicated in separate fields of the indication.10.The apparatus of claim 9, wherein for retransmission, a coding rate field is used for an information indication other than the first single effective coding rate, and wherein the information indication includes one or more of:a redundancy version (RV) ,Code Block Group Transmission Information (CBGTI) , orCode Block Group Flushing-out Information (CBGFI) .11.The apparatus of claim 1, wherein an alphabet of the first single effective coding rate is independent of a combination of modulation orders of the first plurality of modulation orders.12.The apparatus of claim 1, wherein an alphabet of the first single effective coding rate is based at least in part on a combination of modulation orders of the first plurality of modulation orders or based at least in part on a ratio of data quantities of the plurality of FSI-SBs.13.The apparatus of claim 1, wherein more than one of the plurality of FSI-SBs shares the indication with respect to one of the first plurality of modulation orders.14.The apparatus of claim 1, wherein the one or more processors are individually or collectively configured to cause the UE to:receive a channel state information (CSI) configuration that indicates channel quality indicator (CQI) reporting of a second plurality of modulation orders, a second single effective coding rate, and a plurality of rank indicators; andtransmit a CSI report that indicates the second plurality of modulation orders, the second single effective coding rate, and the plurality of rank indicators.15.The apparatus of claim 14, wherein the CSI report is associated with one or more combinations of FSI-SBs.16.The apparatus of claim 14, wherein the CSI report is associated with a plurality of precoding matrix indicator subbands (PMI-SBs) or a plurality of CQI subbands (CQI-SBs) , and boundaries of the plurality of FSI-SBs are boundaries of the plurality of PMI-SBs or boundaries of the plurality of CQI-SBs.17.The apparatus of claim 1, wherein the transport block is communicated via a plurality of physical resource block groups (PRGs) , and wherein boundaries of the plurality of FSI-SBs are boundaries of the plurality of PRGs.18.An apparatus for wireless communication at a network entity, comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the network entity to:transmit an indication that indicates a codeword across a plurality of flexible spectrum integration subbands (FSI-SBs) for a transport block and a plurality of modulation orders with a single effective coding rate; andcommunicate the transport block over the plurality of FSI-SBs with the single effective coding rate.19.The apparatus of claim 18, wherein a quantity of the plurality of FSI-SBs is equal to or greater than a quantity of the plurality of modulation orders.20.The apparatus of claim 18, wherein the single effective coding rate is based at least in part on data quantities of the FSI-SBs.