Capability for channel state information reporting
By enabling UE capabilities for CSI reporting timing and mode, the UE ensures efficient CSI reporting, preventing communication degradation and improving throughput and latency in lower-layer mobility procedures.
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
User equipment (UE) capabilities for channel state information (CSI) reporting are limited, leading to insufficient processing resources for handling multiple CSI reports, which results in degraded communications, increased latency, and reduced throughput due to missed CSI reports during lower-layer triggered mobility procedures.
The UE provides an indication of its capability for CSI reporting, including timing and mode of CSI measurements and reports, allowing the network entity to adjust the CSI configuration accordingly, ensuring all requested CSI reports are transmitted.
This approach prevents degraded communications, conserves signaling resources, reduces latency, and increases throughput by aligning CSI reporting with UE capabilities, ensuring accurate CSI for scheduling.
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Figure CN2024139478_25062026_PF_FP_ABST
Abstract
Description
CAPABILITY FOR CHANNEL STATE INFORMATION REPORTINGINTRODUCTION
[0001] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with a user equipment (UE) reporting capability.
[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 at a user equipment (UE) . The method may include transmitting an indication of a UE capability for channel state information (CSI) reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for a lower-level triggered mobility (LTM) candidate cell switch. The method may include receiving a CSI configuration associated with the UE capability. The method may include transmitting a CSI report in accordance with the CSI configuration.
[0005] Some aspects described herein relate to a method of wireless communication performed at a UE. The method may include transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells. The method may include receiving a CSI configuration associated with the UE capability. The method may include transmitting a CSI report in accordance with the CSI configuration.
[0006] Some aspects described herein relate to a method of wireless communication performed at a network entity. The method may include receiving an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The method may include transmitting a CSI configuration associated with the indication.
[0007] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the UE to transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The one or more processors may be configured to cause the UE to receive a CSI configuration associated with the UE capability. The one or more processors may be configured to cause the UE to transmit a CSI report in accordance with the CSI configuration.
[0008] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the UE to transmit an indication of a UE capability to support different CSI reporting modes for LTM candidate cells. The one or more processors may be configured to cause the UE to receive a CSI configuration associated with the UE capability. The one or more processors may be configured to cause the UE to transmit a CSI report in accordance with the CSI configuration.
[0009] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the network entity to receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The one or more processors may be configured to cause the network entity to transmit a CSI configuration associated with the indication.
[0010] 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 transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a CSI configuration associated with the UE capability. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a CSI report in accordance with the CSI configuration.
[0011] 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 transmit an indication of a UE capability to support different CSI reporting modes for LTM candidate cells. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a CSI configuration associated with the UE capability. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a CSI report in accordance with the CSI configuration.
[0012] 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 receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The set of instructions, when executed by one or more processors of the network entity, may cause the network entity to transmit a CSI configuration associated with the indication.
[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting an indication of a capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The apparatus may include means for receiving a CSI configuration associated with the capability. The apparatus may include means for transmitting a CSI report in accordance with the CSI configuration.
[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting an indication of a capability to support different CSI reporting modes for LTM candidate cells. The apparatus may include means for receiving a CSI configuration associated with the capability. The apparatus may include means for transmitting a CSI report in accordance with the CSI configuration.
[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving an indication of a capability to support different CSI reporting modes for LTM candidate cells or a capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The apparatus may include means for transmitting a CSI configuration associated with the indication.
[0016] 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.
[0017] 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
[0018] 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
[0019] Fig. 1 is a diagram illustrating an example of a wireless communication network, in accordance with the present disclosure.
[0020] Fig. 2 is a diagram illustrating an example disaggregated network node architecture, in accordance with the present disclosure.
[0021] Fig. 3 is a diagrams illustrating an examples of Layer 1 (L1) / Layer 2 (L2) inter-cell mobility, in accordance with the present disclosure.
[0022] Fig. 4 is a diagram illustrating an example of a user equipment (UE) capability, in accordance with the present disclosure.
[0023] Fig. 5 is a diagram illustrating an example of channel state information reporting, in accordance with the present disclosure.
[0024] Fig. 6 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
[0025] Fig. 7 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
[0026] Fig. 8 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.
[0027] Fig. 9 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
[0028] Fig. 10 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system, in accordance with the present disclosure.
[0029] Fig. 11 is a diagram illustrating an example of an implementation of code and circuitry for an apparatus, in accordance with the present disclosure.
[0030] Fig. 12 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
[0031] Fig. 13 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system, in accordance with the present disclosure.
[0032] Fig. 14 is a diagram illustrating an example of an implementation of code and circuitry for an apparatus, in accordance with the present disclosure.DETAILED DESCRIPTION
[0033] In an example, a user equipment (UE) may participate in a lower-layer triggered mobility (LTM) procedure. A lower layer may be Layer 1 (L1) (e.g., a physical layer) and / or Layer 2 (L2) (e.g., a medium access control (MAC) layer) . An LTM procedure may include the use of L1 signaling (e.g., a downlink control information (DCI) message) or L2 signaling (e.g., a cell switch MAC control element (MAC-CE) ) from a network entity to the UE to trigger a mobility operation, such as a change to a serving cell or a serving cell group (e.g., changing from a source cell to a target cell) . The term “cell” can refer to a coverage area of a network entity or to a network entity itself, depending on the context in which the term is used. A serving cell may be a primary cell or a secondary cell provided by a network entity to which the UE is connected. The network entity may provide multiple cells, and a serving cell group may include a group of cells. L1 / L2 signaling may be used to dynamically switch from a current serving cell to any of multiple candidate serving cells (e.g., including a special cell (SpCell) , which may be a primary cell (PCell) or a primary secondary cell (PSCell) , and / or a secondary cell (SCell) ) . Candidate serving cells are cell to which a UE may switch. The PCell may be the cell that handles critical signaling, such as setting up connections. A SCell may be a supplementary cell to be used for data, such as for carrier aggregation.
[0034] In some examples, a network entity may need channel state information (CSI) to decide whether to switch from the current serving cell to a candidate serving cell. The network entity may enable a UE to perform CSI reporting for different candidate serving cells. However, the UE may not have a UE capability to handle a large number of CSI reports in multiple candidate cells, due to the large amount of processing resources that are required to handling the large number of CSI reports. Without information about a UE capability for CSI reporting, the network entity may assign more CSI reports than the UE can support. That is, the UE may not have enough processing resources to support a certain number of candidate cells and / or CSI reports. The UE may not be also to support certain CSI reporting modes or timing of a CSI measurement and transmission of a CSI report with respect to a command (e.g., handover command) for an LTM candidate cell switch, which is a switch of cell access from a serving LTM cell to an LTM candidate cell. As a result, the network entity may not receive some CSI reports, which can lead to degraded communications (wasted signaling resources due to failed communications, increased latency, and reduced throughput) .
[0035] Various aspects relate generally to UE mobility and to a network entity transmitting an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement (s) , a CSI report that is based at least in part on the CSI measurement (s) , and a command for a switch to an LTM candidate cell. The timing (e.g., ordering) may be associated with different CSI reporting modes. For example, a UE capability may include a CSI reporting mode where the CSI measurement and the CSI report are before the command, a CSI reporting mode where the CSI measurement and the CSI report are after the command, and / or a CSI reporting mode where the command is after the CSI measurement and before the CSI report. The UE may receive a CSI configuration associated (e.g., that accounts for) with (e.g., matching or is based on) the UE capability. The UE may transmit a CSI report in accordance with (e.g., follows or is based on) the CSI configuration.
[0036] By providing a UE capability for a CSI reporting mode or a timing of CSI measurements, CSI reports, and a cell switch command, the UE may receive a CSI configuration that accounts for the UE capability such that all of the CSI reports requested by the network entity can be transmitted. As a result of not missing CSI reports, the network entity may not have degraded communications due to CSI reports that are not transmitted. If some CSI reports are not transmitted, the network entity may have less accurate CSI for scheduling communications. Avoiding degraded communications conserves signaling resources, reduces latency, and increases throughput.
[0037] In some aspects, the UE capability may include a maximum quantity of supported CSI reports before the LTM candidate cell switch, or during the LTM candidate cell switch. “During” the cell switch may start at reception of the cell switch command and end when the cell switch is completed. By indicating a UE capability for a maximum number of CSI reports, according to the timing or CSI reporting mode, the UE may not be assigned more CSI reports than the UE has the capability to handle CSI reports requested by the network entity. As a result, all CSI reports requested by the network entity can be transmitted, signaling resources are conserved, latency is decreased, and throughput is reduced.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] 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.
[0043] 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.
[0044] 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.
[0045] 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.
[0046] 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.
[0047] 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.
[0048] 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.
[0049] 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.
[0050] 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) .
[0051] 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.
[0052] 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.
[0053] 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.
[0054] 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 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.
[0055] 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) .
[0056] 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.
[0057] 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.
[0058] 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.
[0059] 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) .
[0060] 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 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.
[0061] 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 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 formal 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-CE, an RRC message, or user data, among other examples. Each PDSCH may carry one or more transport blocks (TBs) of data.
[0062] 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, an 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.
[0063] 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.
[0064] 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.
[0065] 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.
[0066] 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.
[0067] 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) .
[0068] 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.
[0069] 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.
[0070] 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.
[0071] 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 transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; receive a CSI configuration associated with the UE capability; and transmit a CSI report in accordance with the CSI configuration.
[0072] In some aspects, the communication manager 150 may transmit an indication of a UE capability to support different CSI reporting modes for LTM candidate cells; receive a CSI configuration associated with the UE capability; and transmit a CSI report in accordance with the CSI configuration. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0073] In some aspects, the network entity may include a communication manager 155. As described in more detail elsewhere herein, the communication manager 155 may receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; and transmit a CSI configuration associated with the indication. Additionally, or alternatively, the communication manager 155 may perform one or more other operations described herein.
[0074] 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.
[0075] 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.
[0076] 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.
[0077] 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.
[0078] 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.
[0079] 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) .
[0080] A network entity (e.g., 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 a UE capability for CSI reporting, 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 600 of Fig. 6, process 700 of Fig. 7, process 800 of Fig. 8, 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 600 of Fig. 6, process 700 of Fig. 7, process 800 of Fig. 8, 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.
[0081] In some aspects, a UE (e.g., a UE 120) includes means for transmitting an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; means for receiving a CSI configuration associated with the UE capability; and / or means for transmitting a CSI report in accordance with the CSI configuration.
[0082] In some aspects, the UE includes means for transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells; means for receiving a CSI configuration associated with the UE capability; and / or means for transmitting a CSI report in accordance with the CSI configuration. 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 902 depicted and described in connection with Fig. 9) , and / or a transmission component (for example, transmission component 904 depicted and described in connection with Fig. 9) , among other examples.
[0083] In some aspects, a network entity (e.g., a network node 110) includes means for receiving an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; and / or means for transmitting a CSI configuration associated with the indication. 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 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.
[0084] Fig. 3 is a diagrams illustrating an examples 300 of L1 / L2 inter-cell mobility, in accordance with the present disclosure.
[0085] In some cases, a network entity may instruct a UE to change cells using a Layer 3 (L3) handover procedure. An L3 handover procedure may include the network entity transmitting, to the UE, an RRC reconfiguration message indicating that the UE should perform a handover procedure to a target cell (candidate cell) , which may be transmitted in response to the UE providing the network entity with an L3 measurement report indicating signal strength measurements associated with various cells (e.g., measurements associated with the source cell (serving cell) and one or more neighboring candidate cells) . In response to receiving the RRC reconfiguration message, the UE may communicate with the source cell and the target cell to detach from the source cell and connect to the target cell (e.g., the UE may establish an RRC connection with the target cell) . This may be an LTM candidate cell switch. Once handover is complete, the target cell may communicate with a user plane function (UPF) of a core network to instruct the UPF to switch a user plane path of the UE from the source cell to the target cell. The target cell may also communicate with the source cell to indicate that handover is complete and that the source cell may be released.
[0086] L3 handover procedures may be associated with high latency and high overhead due to the multiple RRC reconfiguration messages and / or other L3 signaling and operations used to perform the handover procedures. Accordingly, in some examples, a UE 120 may be configured to perform an LTM procedure. In some aspects, L1 signaling (e.g., a DCI message) or L2 signaling (e.g., a MAC-CE) is used to indicate a change to a serving cell or a serving cell group (e.g., changing from a source cell to a target cell) . L1 / L2 signaling may be used to dynamically switch among candidate serving cells (e.g., including a special cell (SpCell) , which may be a primary cell (PCell) or a primary secondary cell (PSCell) , and / or a secondary cell (SCell) ) .
[0087] As shown by example 300, a source cell 302 may be a serving cell (of a serving cell group) . A network entity (e.g., network node 110) may configure the UE 120 with a candidate SpCell set (candidate SpCell 306, candidate SpCell 308, and the candidate SpCell that is shown as the new SpCell or target cell 304) that includes various candidate SpCells to enable individual SpCell selection in a first L1 / L2 inter-cell mobility scenario where separate signaling is used to indicate a SpCell change without carrier aggregation or dual connectivity. For example, the UE 120 may be communicating with a source SpCell (shown as an old SpCell or source cell 302) , and the serving SpCell may be switched to a target SpCell (shown as a new SpCell or target cell 304) that corresponds to a candidate SpCell included in the candidate SpCell set. Accordingly, in example 300, L1 / L2 signaling (for an LTM candidate cell switch) may be used to select a single SpCell among various candidate SpCells in a preconfigured candidate SpCell set without carrier aggregation or dual connectivity (e.g., the candidate SpCell set does not include any SCells) . In this case, the new SpCell may be selected based on a beam indication, and selection of an SCell may be based on legacy (e.g., L3) signaling or separate L1 / L2 signaling. Additionally, or alternatively, as shown by example 310, the UE may be configured with a candidate SpCell set (SCell 1, SCell 2, new SpCell, and / or target cell) , and a SpCell may be changed from a source cell to the target cell by swapping roles of a SpCell and an SCell among the cells included in the candidate SpCell set (e.g., in a carrier aggregation or dual connectivity scenario) .
[0088] In some examples, there may be multiple candidate cells configured, where the UE in a current serving cell can be indicated by L1 / L2 signaling to switch to one of multiple candidate serving cells based on a mobility of the UE, where before making a decision for a cell switch, the network entity may request the UE to perform CSI reports in different candidate serving cells. However, the UE 120 may not have a UE capability to handle a large number of CSI report in multiple candidate cells. A network entity may assign more CSI reports than the UE 120 can support. That is, the UE 120 may not have enough processing resources to support a certain number of candidate cells and / or CSI reports. As a result, the network entity may not receive some CSI reports, which can lead to degraded communications (wasted signaling resources, increased latency, and reduced throughput) .
[0089] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
[0090] Fig. 4 is a diagram illustrating an example 400 of a UE capability, in accordance with the present disclosure.
[0091] According to various aspects described herein, a UE may transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement (s) , a CSI report that is based at least in part on the CSI measurement (s) , and a command (e.g., handover command) for an LTM candidate cell switch. The timing may be associated with different CSI reporting modes. Example 400 shows such timings for a CSI measurement 402, a CSI report 404, and a command 406. A UE capability 410 may include a UE capability 410 for CSI measurement and reporting. The UE capability 410 may include CSI reporting mode 412, CSI reporting mode 414, and / or CSI reporting mode 416. CSI reporting mode 412 may include the CSI measurement 402 and the CSI report 404 before the command 406. CSI reporting mode 414 may include the CSI measurement 402 and the CSI report 404 after the command 406. In some aspects, CSI reporting mode 414 may include the CSI measurement 402 and the CSI report 404 after an acknowledge for the command 406. CSI reporting mode 416 may include the CSI measurement 402 before the command 406 and the CSI report 404 after the command 406. In some aspects, CSI reporting mode 416 may include the CSI measurement 402 before the command 406 and the CSI report 404 after an acknowledge for the command 406. The UE may receive a CSI configuration associated with (e.g., matching or is based on) the UE capability 410. The UE may transmit a CSI report in accordance with (e.g., follows or is based on) the CSI configuration.
[0092] By providing a UE capability for a CSI reporting mode or a timing of CSI measurements, CSI reports, and a cell switch command, the UE may receive a CSI configuration that accounts for the UE capability such that CSI reports are not missed by the network entity. As a result of not missing CSI reports, the network entity may not have degraded communications due to missing CSI reports. Avoiding degraded communications conserves signaling resources, reduces latency, and increases throughput.
[0093] In some aspects, the UE capability may include a maximum quantity of supported CSI reports before the LTM candidate cell switch, or during the LTM candidate cell switch. During the cell switch may start at reception of the command and end when the cell switch is completed. By indicating a UE capability for a maximum number of CSI reports, according to the timing or CSI reporting mode, the UE may not be assigned more CSI reports than the UE is capable of handling CSI reports requested by the network entity. As a result, CSI reports are not lost, signaling resources are conserved, latency is decreased, and throughput is reduced.
[0094] As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4.
[0095] Fig. 5 is a diagram illustrating an example 500 of CSI reporting, in accordance with the present disclosure. Example 500 shows a network entity 510 (e.g., network node 110) that provides a source cell (serving cell 512) and a network entity 515 (e.g., network node 110) that provides a candidate cell 516 (e.g., LTM candidate cell) . A candidate cell may include a cell to which the UE 520 may switch as part of a mobility procedure.
[0096] As shown by reference number 525, the UE 520 may transmit (and the network entity 510 may receive or obtain) an indication of a UE capability 410 for measuring reference signals from a single LTM candidate cell. In some aspects, the UE capability may be specific to a CSI report type. For example, the UE 520 may support CSI reporting mode 412 for beam reports such as L1-RSRP reports, and CSI reporting mode 414 for CSI acquisition such as CQI / RI / PMI reports. In another example, the UE 520 may support CSI reporting mode 412 for UE-initiated beam reports and CSI reporting mode 414 for gNB-initiated beam reports. In some aspects, the indication may indicate a maximum quantity of CSI reports 526 that are, depending on the CSI reporting mode, before or during an LTM candidate cell switch.
[0097] As shown by reference number 530, the network entity 515 (providing serving cell 512) may transmit or send a CSI configuration 532. As shown by reference number 535, the network entity 515 of the candidate cell 516 may transmit CSI-RSs. There may be multiple network entities that are LTM candidate cells. A CSI report may be triggered by a command (e.g., handover command or an LTM cell switch command) from the network entity 510 or by a rule used by the UE 520. The command may include a CSI request field to indicate a CSI configuration ID or a CSI report ID.
[0098] As shown by reference number 540, the UE 520 may measure the CSI-RSs according to the CSI configuration 532, to obtain one or more CSI measurements. The CSI-RSs may be CSI resources configured for the CSI measurements. The CSI measurements may be stored for one or more CSI reports. The CSI reports may be initiated by the network entity 510 or UE-initiated (e.g., according to a rule) . There may be multiple LTM candidate cells, and the UE 520 may be measuring CSI-RSs from the multiple LTM candidate cells for multiple CSI reports. The quantity of CSI reports may be limited according to the maximum quantity of CSI reports 526. In one example, the maximum quantity may be a maximum quantity of supported CSI reports for CSI measurement and reporting before an LTM candidate cell switch.
[0099] In some aspects, the UE capability 410 may be per BWP part 552, per component carrier (CC) 554, across CCs (e.g., CC 554 and CC 556) , per frequency range 558, or across frequency ranges (e.g., frequency ranges 558 and 560) .
[0100] As shown by reference number 545, the UE 520 may transmit one or more CSI reports. The reporting channel may be transmitted in the serving cell. As shown by reference number 550, the network entity 510 may transmit a command (e.g., handover command in a MAC-CE) that is based at least in part on the one or more CSI reports. In example 500, the command is after the CSI report as part of CSI reporting mode 412. In other examples, the command may be between the CSI measurement and the CSI report (CSI reporting mode 414) or before the CSI measurement 402 (CSI reporting mode 416) . The command may be transmitted in L1 / L2 and cause an LTM candidate cell switch, as shown by reference number 555.
[0101] In another example, the maximum quantity may be a maximum quantity of supported CSI reports for CSI measurement and reporting during the LTM candidate cell switch. The UE 520 may be configured by the serving cell with a CSI measurement resource and may report quantities for candidate cell (s) before the LTM candidate cell switch. In some aspects, a single CSI resource setting associated with the CSI report may include only CSI-RS resources from a single candidate cell (i.e., target cell) . The reporting channel may be in a candidate cell (e.g., the first UL transmission to the target cell) . In some scenarios, the UE 520 may support only one CSI report by default.
[0102] In an example, the maximum quantity of supported CSI reports, associated with CSI measurements before the LTM candidate cell switch, during the LTM candidate cell switch. The CSI report may be UE-initiated or network-initiated (reported after the LTM candidate cell switch) . That is, the UE 520 may measure the CSI resource and save / update the CSI measurement result, and there is no reporting overhead before the LTM candidate cell switch. A single CSI resource setting may include CSI resources from a single candidate cell (target cell) . The UE 520 may need to measure for multiple candidate cells in different CSI report configurations and wait for the command to decide for which cell to report. The reporting channel may be in the LTM candidate cell after the command.
[0103] After receiving the command, the UE 520 may transmit the saved measurement result in the first uplink transmission. If an LTM candidate cell is not switched on, the corresponding CSI measurement result can be discarded after the LTM candidate cell switch. The UE 520 does not need to wait for the transmission of the CSI resource after the LTM candidate cell switch. As a result, the interruption time is reduced and the latency of CSI reporting decreases.
[0104] As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with regard to Fig. 5.
[0105] Fig. 6 is a diagram illustrating an example process 600 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 600 is an example where the apparatus or the UE (e.g., UE 520) performs operations associated with a UE capability for CSI reporting.
[0106] As shown in Fig. 6, in some aspects, process 600 may include transmitting an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch (block 610) . For example, the UE (e.g., using communication manager 150, capability component 908, and / or transmission component 904, depicted in Fig. 9) may transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch, as described above.
[0107] As further shown in Fig. 6, in some aspects, process 600 may include receiving a CSI configuration associated with the UE capability (block 620) . For example, the UE (e.g., using communication manager 150 and / or reception component 902, depicted in Fig. 9) may receive a CSI configuration associated with the UE capability, as described above.
[0108] As further shown in Fig. 6, in some aspects, process 600 may include transmitting a CSI report in accordance with the CSI configuration (block 630) . For example, the UE (e.g., using communication manager 150, reporting component 910, and / or transmission component 904, depicted in Fig. 9) may transmit a CSI report in accordance with the CSI configuration, as described above.
[0109] Process 600 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.
[0110] In a first aspect, the timing includes the CSI measurement and transmission of the CSI report before reception of the command.
[0111] In a second aspect, alone or in combination with the first aspect, the UE capability includes a maximum quantity of supported CSI reports before the LTM candidate cell switch.
[0112] In a third aspect, alone or in combination with one or more of the first and second aspects, the timing includes reception of the command before the CSI measurement and transmission of the CSI report.
[0113] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the UE capability includes a maximum quantity of supported CSI reports during the LTM candidate cell switch.
[0114] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the timing includes reception of the command after the CSI measurement and before transmission of the CSI report.
[0115] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the UE capability includes a maximum quantity of supported CSI reports during the LTM candidate cell switch, and CSI measurements for the supported CSI reports are performed before the LTM candidate cell switch.
[0116] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, process 600 includes measuring a CSI resource to obtain the CSI measurement, and storing the CSI measurement for the CSI report before the LTM candidate cell switch.
[0117] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the UE capability is specific to a CSI report type.
[0118] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the UE capability is per BWP, per CC, across CCs per frequency range, or across frequency ranges.
[0119] Although Fig. 6 shows example blocks of process 600, in some aspects, process 600 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 6. Additionally, or alternatively, two or more of the blocks of process 600 may be performed in parallel.
[0120] Fig. 7 is a diagram illustrating an example process 700 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 700 is an example where the apparatus or the UE (e.g., UE 520) performs operations associated with a UE capability for CSI reporting.
[0121] As shown in Fig. 7, in some aspects, process 700 may include transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells (block 710) . For example, the UE (e.g., using communication manager 150, capability component 908, and / or transmission component 904, depicted in Fig. 9) may transmit an indication of a UE capability to support different CSI reporting modes for LTM candidate cells, as described above.
[0122] As further shown in Fig. 7, in some aspects, process 700 may include receiving a CSI configuration associated with the UE capability (block 720) . For example, the UE (e.g., using communication manager 150 and / or reception component 902, depicted in Fig. 9) may receive a CSI configuration associated with the UE capability, as described above.
[0123] As further shown in Fig. 7, in some aspects, process 700 may include transmitting a CSI report in accordance with the CSI configuration (block 730) . For example, the UE (e.g., using communication manager 150 and / or transmission component 904, depicted in Fig. 9) may transmit a CSI report in accordance with the CSI configuration, as described above.
[0124] Process 700 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.
[0125] In a first aspect, a CSI reporting mode includes a CSI measurement and transmission of the CSI report before reception of a command for an LTM candidate cell switch.
[0126] In a second aspect, alone or in combination with the first aspect, a CSI reporting mode includes reception of a command for an LTM candidate cell switch before a CSI measurement and transmission of the CSI report.
[0127] In a third aspect, alone or in combination with one or more of the first and second aspects, a CSI reporting mode includes reception of a command for an LTM candidate cell switch after a CSI measurement and before transmission of the CSI report.
[0128] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the UE capability is specific to a CSI report type.
[0129] Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
[0130] Fig. 8 is a diagram illustrating an example process 800 performed, for example, at a network entity or an apparatus of a network entity, in accordance with the present disclosure. Example process 800 is an example where the apparatus or the network entity (e.g., network entity 510) performs operations associated with a UE capability for CSI reporting.
[0131] As shown in Fig. 8, in some aspects, process 800 may include receiving an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch (block 810) . For example, the network entity (e.g., using communication manager 155, capability component 1208 and / or reception component 1202, depicted in Fig. 12) may receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch, as described above.
[0132] As further shown in Fig. 8, in some aspects, process 800 may include transmitting a CSI configuration associated with the indication (block 820) . For example, the network entity (e.g., using communication manager 155, configuration component 1210, and / or transmission component 904, depicted in Fig. 9) may transmit a CSI configuration associated with the indication, as described above.
[0133] Process 800 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.
[0134] In a first aspect, process 800 includes receiving a CSI report based at least in part on the CSI configuration.
[0135] In a second aspect, alone or in combination with the first aspect, a CSI reporting mode or timing includes the CSI measurement and transmission of the CSI report before reception of the command.
[0136] In a third aspect, alone or in combination with one or more of the first and second aspects, a CSI reporting mode or timing includes reception of the command before the CSI measurement and transmission of the CSI report.
[0137] In a fourth aspect, alone or in combination with one or more of the first through third aspects, a CSI reporting mode or timing includes reception of the command after the CSI measurement and before transmission of the CSI report.
[0138] Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.
[0139] Fig. 9 is a diagram of an example apparatus 900 for wireless communication, in accordance with the present disclosure. The apparatus 900 may be a UE, or a UE may include the apparatus 900. In some aspects, the apparatus 900 includes a reception component 902 and a transmission component 904, which may be in communication with one another (for example, via one or more buses and / or one or more other components) . As shown, the apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using the reception component 902 and the transmission component 904. As further shown, the apparatus 900 may include the communication manager 150. The communication manager 150 may include one or more of a capability component 908 and / or a reporting component 910, among other examples. The communication manager 150 may be included in, or implemented via, a processing system (for example, the processing system 140 described in connection with Fig. 1) .
[0140] In some aspects, the apparatus 900 may be configured to perform one or more operations described herein in connection with Figs. 1-5. Additionally, or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as process 600 of Fig. 6, process 700 of Fig. 7, or a combination thereof. In some aspects, the apparatus 900 and / or one or more components shown in Fig. 9 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. 9 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 902 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 906. The reception component 902 may provide received communications to one or more other components of the apparatus 900. In some aspects, the reception component 902 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 900. In some aspects, the reception component 902 may include one or more components of the UE 120 described above in connection with Figure 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 904 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 906. In some aspects, one or more other components of the apparatus 900 may generate communications and may provide the generated communications to the transmission component 904 for transmission to the apparatus 906. In some aspects, the transmission component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 906. In some aspects, the transmission component 904 may include one or more components of the UE 120 described above in connection with Figure 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 120 of the UE described in connection with Fig. 1. In some aspects, the transmission component 904 may be co-located with the reception component 902.
[0143] In some aspects, the transmission component 904 and the capability component 908 may transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The reception component 902 may receive a CSI configuration associated with the UE capability. The transmission component 904 may transmit a CSI report in accordance with the CSI configuration.
[0144] The reporting component 910 may measure a CSI resource to obtain the CSI measurement. The reporting component 910 may store the CSI measurement for the CSI report before the LTM candidate cell switch.
[0145] In some aspects, the transmission component 904 may transmit an indication of a UE capability to support different CSI reporting modes for LTM candidate cells. The reception component 902 may receive a CSI configuration associated with the UE capability. The transmission component 904 may transmit a CSI report in accordance with the CSI configuration.
[0146] The number and arrangement of components shown in Fig. 9 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. 9. Furthermore, two or more components shown in Fig. 9 may be implemented within a single component, or a single component shown in Fig. 9 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 9 may perform one or more functions described as being performed by another set of components shown in Fig. 9.
[0147] Fig. 10 is a diagram illustrating an example 1000 of a hardware implementation for an apparatus 1005 employing a processing system 1010, in accordance with the present disclosure. The apparatus 1005 may be a UE or may be at (e.g., included in) a UE.
[0148] The processing system 1010 may be implemented with a bus architecture, represented generally by the bus 1015. The bus 1015 may include any number of interconnecting buses and bridges depending on the specific application of the processing system 1010 and the overall design constraints. The bus 1015 links together various circuits including one or more processors and / or hardware components, represented by the processor 1020, the illustrated components, and the computer-readable medium / memory 1025. The processor 1020 may include multiple processors, such as processor 1020a, memory 1020b, and memory 1020c. The memory 1025 may include multiple memories, such as memory 1025a, memory 1025b, and memory 1025c. The bus 1015 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and / or power management circuits.
[0149] The processing system 1010 may be coupled to one or more transceivers 1030. A transceiver 1030 is coupled to one or more antennas 1035. The transceiver 1030 provides a means for communicating with various other apparatuses over a transmission medium. The transceiver 1030 receives a signal from the one or more antennas 1035, extracts information from the received signal, and provides the extracted information to the processing system 1010, specifically the reception component 902. In addition, the transceiver 1030 receives information from the processing system 1010, specifically the transmission component 904, and generates a signal to be applied to the one or more antennas 1035 based at least in part on the received information.
[0150] The processing system 1010 includes one or more processors 1020 coupled to a computer-readable medium / memory 1025. A processor 1020 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory 1025. The software, when executed by the processor 1020, causes the processing system 1010 to perform the various functions described herein for any particular apparatus. The computer-readable medium / memory 1025 may also be used for storing data that is manipulated by the processor 1020 when executing software. The processing system further includes at least one of the illustrated components. The components may be software modules running in the processor 1020, resident / stored in the computer readable medium / memory 1025, one or more hardware modules coupled to the processor 1020, or some combination thereof.
[0151] In some aspects, the processing system 1010 may be a component of the UE 120 and may include one or more memories and / or may include one or more processors. In some aspects, the apparatus 1005 for wireless communication includes means for transmitting an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; receiving a CSI configuration associated with the UE capability; and transmitting a CSI report in accordance with the CSI configuration. In some aspects, the apparatus 1005 for wireless communication includes means for transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells; receiving a CSI configuration associated with the UE capability; and transmitting a CSI report in accordance with the CSI configuration. The aforementioned means may be one or more of the aforementioned components of the apparatus 900 and / or the processing system 1010 of the apparatus 1005 configured to perform the functions recited by the aforementioned means. As described elsewhere herein, the processing system 1010 may include the processing system 140. In one configuration, the aforementioned means may be a TX MIMO processor, a RX processor, and / or a controller / processor configured to perform the functions and / or operations recited herein.
[0152] Fig. 10 is provided as an example. Other examples may differ from what is described in connection with Fig. 10.
[0153] Fig. 11 is a diagram illustrating an example 1100 of an implementation of code and circuitry for an apparatus 1105, in accordance with the present disclosure. The circuity may include processing circuitry and memory circuitry. The apparatus 1105 may be a UE, or a UE may include the apparatus 1105.
[0154] As shown in Fig. 11, the apparatus 1105 may include circuitry for transmitting an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch (circuitry 1120) . For example, the circuitry 1120 may enable the apparatus 1105 to transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch.
[0155] As shown in Fig. 11, the apparatus 1105 may include, stored in computer-readable medium 1025, code for transmitting an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch (code 1125) . For example, the code 1125, when executed by processor 1020, may cause processor 1020 to cause transceiver 1030 to transmit an indication of a UE capability for CSI reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch.
[0156] As shown in Fig. 11, the apparatus 1105 may include circuitry for transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells (circuitry 1130) . For example, the circuitry 1130 may enable the apparatus 1105 to transmit an indication of a UE capability to support different CSI reporting modes for LTM candidate cells
[0157] As shown in Fig. 11, the apparatus 1105 may include, stored in computer-readable medium 1025, code for transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells (code 1135) . For example, the code 1125, when executed by processor 1020, may cause processor 1020 to cause transceiver 1030 to transmitting an indication of a UE capability to support different CSI reporting modes for LTM candidate cells.
[0158] As shown in Fig. 11, the apparatus 1105 may include circuitry for receiving a CSI configuration associated with the UE capability (circuitry 1140) . For example, the circuitry 1130 may enable the apparatus 1105 to receive a CSI configuration associated with the UE capability.
[0159] As shown in Fig. 11, the apparatus 1105 may include, stored in computer-readable medium 1025, code for receiving a CSI configuration associated with the UE capability (code 1145) . For example, the code 1145, when executed by processor 1020, may cause processor 1020 to cause transceiver 1030 to receive a CSI configuration associated with the UE capability.
[0160] As shown in Fig. 11, the apparatus 1105 may include circuitry for transmitting a CSI report in accordance with the CSI configuration (circuitry 1150) . For example, the circuitry 1150 may enable the apparatus 1105 to transmit a CSI report in accordance with the CSI configuration.
[0161] As shown in Fig. 11, the apparatus 1105 may include, stored in computer-readable medium 1025, code for transmitting a CSI report in accordance with the CSI configuration (code 1155) . For example, the code 1155, when executed by processor 1020, may cause processor 1020 to cause transceiver 1030 to transmit a CSI report in accordance with the CSI configuration.
[0162] Fig. 11 is provided as an example. Other examples may differ from what is described in connection with Fig. 11.
[0163] 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 network entity, or a network entity may include the apparatus 1200. In some aspects, the apparatus 1200 includes a reception component 1202 and a transmission component 1204, which may be in communication with one another (for example, via one or more buses and / or one or more other components) . As shown, the apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using the reception component 1202 and the transmission component 1204. As further shown, the apparatus 1200 may include the communication manager 155. The communication manager 155 may include a capability component 1208 and / or a configuration component 1210, among other examples. The communication manager 155 may be included in, or implemented via, a processing system (for example, the processing system 145 described in connection with Fig. 1) .
[0164] In some aspects, the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs. 1-5. Additionally, or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as process 800 of Fig. 8. In some aspects, the apparatus 1200 and / or one or more components shown in Fig. 12 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. 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.
[0165] The reception component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1206. 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 may include one or more components of the UE 120 described above in connection with Figure 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.
[0166] The transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1206. 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 1206. In some aspects, the transmission component 1204 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1206. In some aspects, the transmission component 1204 mmay include one or more components of the UE 120 described above in connection with Figure 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 120 of the network entity described in connection with Fig. 1. In some aspects, the transmission component 1204 may be co-located with the reception component 1202.
[0167] The reception component 1202 and the capability component 1208 may receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch. The transmission component 1204 and the configuration component 1210 may transmit a CSI configuration associated with the indication. The reception component 1202 may receive a CSI report based at least in part on the CSI configuration.
[0168] 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.
[0169] Fig. 13 is a diagram illustrating an example 1300 of a hardware implementation for an apparatus 1305 employing a processing system 1310, in accordance with the present disclosure. The apparatus 1305 may be a network entity or may be at (e.g., included in) a network entity.
[0170] The processing system 1310 may be implemented with a bus architecture, represented generally by the bus 1315. The bus 1315 may include any number of interconnecting buses and bridges depending on the specific application of the processing system 1310 and the overall design constraints. The bus 1315 links together various circuits including one or more processors and / or hardware components, represented by the processor 1320, the illustrated components, and the computer-readable medium / memory 1325. The processor 1320 may include multiple processors, such as processor 1320a, memory 1320b, and memory 1320c. The memory 1325 may include multiple memories, such as memory 1325a, memory 1325b, and memory 1325c. The bus 1315 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and / or power management circuits.
[0171] The processing system 1310 may be coupled to one or more transceivers 1330. A transceiver 1330 is coupled to one or more antennas 1335. The transceiver 1330 provides a means for communicating with various other apparatuses over a transmission medium. The transceiver 1330 receives a signal from the one or more antennas 1335, extracts information from the received signal, and provides the extracted information to the processing system 1310, specifically the reception component 1202. In addition, the transceiver 1330 receives information from the processing system 1310, specifically the transmission component 1204, and generates a signal to be applied to the one or more antennas 1335 based at least in part on the received information.
[0172] The processing system 1310 includes one or more processors 1320 coupled to a computer-readable medium / memory 1325. A processor 1320 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory 1325. The software, when executed by the processor 1320, causes the processing system 1310 to perform the various functions described herein for any particular apparatus. The computer-readable medium / memory 1325 may also be used for storing data that is manipulated by the processor 1320 when executing software. The processing system further includes at least one of the illustrated components. The components may be software modules running in the processor 1320, resident / stored in the computer readable medium / memory 1325, one or more hardware modules coupled to the processor 1320, or some combination thereof.
[0173] In some aspects, the processing system 1310 may be a component of the network node 110 and may include one or more memories and / or may include one or more processors. In some aspects, the apparatus 1305 for wireless communication includes means for receiving an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; and transmitting a CSI configuration associated with the indication. The aforementioned means may be one or more of the aforementioned components of the apparatus 1200 and / or the processing system 1310 of the apparatus 1305 configured to perform the functions recited by the aforementioned means. As described elsewhere herein, the processing system 1310 may include processing system 145. In one configuration, the aforementioned means may be a TX MIMO processor, a receive processor, and / or a controller / processor configured to perform the functions and / or operations recited herein.
[0174] Fig. 13 is provided as an example. Other examples may differ from what is described in connection with Fig. 13.
[0175] Fig. 14 is a diagram illustrating an example 1400 of an implementation of code and circuitry for an apparatus 1405, in accordance with the present disclosure. The circuity may include processing circuitry and memory circuitry. The apparatus 1405 may be a network entity, or a network entity may include the apparatus 1405.
[0176] As shown in Fig. 14, the apparatus 1405 may include circuitry for receiving an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch (circuitry 1420) . For example, the circuitry 1420 may enable the apparatus 1405 to receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch.
[0177] As shown in Fig. 14, the apparatus 1405 may include, stored in computer-readable medium 1325, code for receiving an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch (code 1425) . For example, the code 1425, when executed by processor 1320, may cause processor 1320 to cause transceiver 1330 to receive an indication of a UE capability to support different CSI reporting modes for LTM candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch.
[0178] As shown in Fig. 14, the apparatus 1405 may include circuitry for transmitting a CSI configuration associated with the indication (circuitry 1430) . For example, the circuitry 1430 may enable the apparatus 1405 to transmit a CSI configuration associated with the indication.
[0179] As shown in Fig. 14, the apparatus 1405 may include, stored in computer-readable medium 1325, code for transmitting a CSI configuration associated with the indication (code 1435) . For example, the code 1435, when executed by processor 1320, may cause processor 1320 to cause transceiver 1330 to transmit a CSI configuration associated with the indication.
[0180] Fig. 14 is provided as an example. Other examples may differ from what is described in connection with Fig. 14.
[0181] The following provides an overview of some Aspects of the present disclosure:
[0182] Aspect 1: A method of wireless communication performed at a user equipment (UE) , comprising: transmitting an indication of a UE capability for channel state information (CSI) reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for a lower-level triggered mobility (LTM) candidate cell switch; receiving a CSI configuration associated with the UE capability; and transmitting a CSI report in accordance with the CSI configuration.
[0183] Aspect 2: The method of Aspect 1, wherein the timing includes the CSI measurement and transmission of the CSI report before reception of the command.
[0184] Aspect 3: The method of Aspect 2, wherein the UE capability includes a maximum quantity of supported CSI reports before the LTM candidate cell switch.
[0185] Aspect 4: The method of any of Aspects 1-3, wherein the timing includes reception of the command before the CSI measurement and transmission of the CSI report.
[0186] Aspect 5: The method of Aspect 4, wherein the UE capability includes a maximum quantity of supported CSI reports during the LTM candidate cell switch.
[0187] Aspect 6: The method of any of Aspects 1-5, wherein the timing includes reception of the command after the CSI measurement and before transmission of the CSI report.
[0188] Aspect 7: The method of Aspect 6, wherein the UE capability includes a maximum quantity of supported CSI reports during the LTM candidate cell switch, and wherein CSI measurements for the supported CSI reports are performed before the LTM candidate cell switch.
[0189] Aspect 8: The method of Aspect 6, further comprising: measuring a CSI resource to obtain the CSI measurement; and storing the CSI measurement for the CSI report before the LTM candidate cell switch.
[0190] Aspect 9: The method of any of Aspects 1-8, wherein the UE capability is specific to a CSI report type.
[0191] Aspect 10: The method of any of Aspects 1-9, wherein the UE capability is per bandwidth part, per component carrier (CC) , across CCs per frequency range, or across frequency ranges.
[0192] Aspect 11: A method of wireless communication performed at a user equipment (UE) , comprising: transmitting an indication of a UE capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells; receiving a CSI configuration associated with the UE capability; and transmitting a CSI report in accordance with the CSI configuration.
[0193] Aspect 12: The method of Aspect 11, wherein a CSI reporting mode includes a CSI measurement and transmission of the CSI report before reception of a command for an LTM candidate cell switch.
[0194] Aspect 13: The method of any of Aspects 11-12, wherein a CSI reporting mode includes reception of a command for an LTM candidate cell switch before a CSI measurement and transmission of the CSI report.
[0195] Aspect 14: The method of any of Aspects 11-13, wherein a CSI reporting mode includes reception of a command for an LTM candidate cell switch after a CSI measurement and before transmission of the CSI report.
[0196] Aspect 15: The method of any of Aspects 11-14, wherein the UE capability is specific to a CSI report type.
[0197] Aspect 16: A method of wireless communication performed at a network entity comprising: receiving an indication of a user equipment (UE) capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; and transmitting a CSI configuration associated with the indication.
[0198] Aspect 17: The method of Aspect 16, further comprising receiving a CSI report based at least in part on the CSI configuration.
[0199] Aspect 18: The method of any of Aspects 16-17, wherein a CSI reporting mode or timing includes the CSI measurement and transmission of the CSI report before reception of the command.
[0200] Aspect 19: The method of any of Aspects 16-18, wherein a CSI reporting mode or timing includes reception of the command before the CSI measurement and transmission of the CSI report.
[0201] Aspect 20: The method of any of Aspects 16-19, wherein a CSI reporting mode or timing includes reception of the command after the CSI measurement and before transmission of the CSI report.
[0202] 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.
[0203] 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.
[0204] 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.
[0205] 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.
[0206] 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.
[0207] 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.
[0208] 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.
[0209] Aspect 28: An apparatus for wireless communication at a user equipment (UE) , 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 UE to: transmit an indication of a UE capability for channel state information (CSI) reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for a lower-level triggered mobility (LTM) candidate cell switch; receive a CSI configuration associated with the UE capability; and transmit a CSI report in accordance with the CSI configuration.
[0210] Aspect 29: The apparatus of Aspect 28, wherein the one or more processors are configured, individually or collectively, to cause the UE to: transmit an indication of a UE capability for channel state information (CSI) reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for a lower-level triggered mobility (LTM) candidate cell switch; receive a CSI configuration associated with the UE capability; and transmit a CSI report in accordance with the CSI configuration.
[0211] Aspect 30: An apparatus for wireless communication at a network entity, 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 network entity to: transmit an indication of a UE capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells; receive a CSI configuration associated with the UE capability; and transmit a CSI report in accordance with the CSI configuration.
[0212] Aspect 31: The apparatus of Aspect 30, wherein the one or more processors are configured, individually or collectively, to cause the UE to: transmit an indication of a UE capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells; receive a CSI configuration associated with the UE capability; and transmit a CSI report in accordance with the CSI configuration.
[0213] Aspect 32: An apparatus for wireless communication at a network entity, 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 network entity to: receive an indication of a user equipment (UE) capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; and transmit a CSI configuration associated with the indication.
[0214] Aspect 33: The apparatus of Aspect 32, wherein the one or more processors are configured, individually or collectively, to cause the UE to: receive an indication of a user equipment (UE) capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; and transmit a CSI configuration associated with the indication.
[0215] 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.
[0216] 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.
[0217] 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 “asingle 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) .
[0218] 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.
[0219] 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, “associated with” encompasses any association, connection link, or relation and, therefore, “associated with” may include in associated with, based on, based at least in part on, corresponding to, related to, linked with, connected with, or in response to, among other possibilities. As used herein, “using” may include any use, consideration, calculation, or dependency, among other possibilities. 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.
[0220] 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
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, configured to cause the UE to:transmit an indication of a UE capability for channel state information (CSI) reporting that is associated with a timing of a CSI measurement, a CSI report, and a command for a lower-level triggered mobility (LTM) candidate cell switch;receive a CSI configuration associated with the UE capability; andtransmit a CSI report in accordance with the CSI configuration.The apparatus of claim 1, wherein the timing includes the CSI measurement and transmission of the CSI report before reception of the command.The apparatus of claim 2, wherein the UE capability includes a maximum quantity of supported CSI reports before the LTM candidate cell switch.The apparatus of claim 1, wherein the timing includes reception of the command before the CSI measurement and transmission of the CSI report.The apparatus of claim 4, wherein the UE capability includes a maximum quantity of supported CSI reports during the LTM candidate cell switch.The apparatus of claim 1, wherein the timing includes reception of the command after the CSI measurement and before transmission of the CSI report.The apparatus of claim 6, wherein the UE capability includes a maximum quantity of supported CSI reports during the LTM candidate cell switch, and wherein CSI measurements for the supported CSI reports are performed before the LTM candidate cell switch.The apparatus of claim 6, wherein the one or more processors are configured to cause the UE to:measure a CSI resource to obtain the CSI measurement; andstore the CSI measurement for the CSI report before the LTM candidate cell switch.The apparatus of claim 1, wherein the UE capability is specific to a CSI report type.The apparatus of claim 1, wherein the UE capability is per bandwidth part, per component carrier (CC) , across CCs per frequency range, or across frequency ranges.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, configured to cause the UE to:transmit an indication of a UE capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells;receive a CSI configuration associated with the UE capability; andtransmit a CSI report in accordance with the CSI configuration.The apparatus of claim 11, wherein a CSI reporting mode includes a CSI measurement and transmission of the CSI report before reception of a command for an LTM candidate cell switch.The apparatus of claim 11, wherein a CSI reporting mode includes reception of a command for an LTM candidate cell switch before a CSI measurement and transmission of the CSI report.The apparatus of claim 11, wherein a CSI reporting mode includes reception of a command for an LTM candidate cell switch after a CSI measurement and before transmission of the CSI report.The apparatus of claim 11, wherein the UE capability is specific to a CSI report type.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, configured to cause the network entity to:receive an indication of a user equipment (UE) capability to support different channel state information (CSI) reporting modes for lower-layer triggered mobility (LTM) candidate cells or a UE capability for CSI reporting based at least in part on a timing of a CSI measurement, a CSI report, and a command for an LTM candidate cell switch; andtransmit a CSI configuration associated with the indication.The apparatus of claim 16, wherein the one or more processors are configured to cause the network entity to receive a CSI report based at least in part on the CSI configuration.The apparatus of claim 16, wherein a CSI reporting mode includes the CSI measurement and transmission of the CSI report before reception of the command.The apparatus of claim 16, wherein a CSI reporting mode includes reception of the command before the CSI measurement and transmission of the CSI report.The apparatus of claim 16, wherein a CSI reporting mode includes reception of the command after the CSI measurement and before transmission of the CSI report.